CN109278504B - Vehicle body lower part structure of sliding door vehicle - Google Patents
Vehicle body lower part structure of sliding door vehicle Download PDFInfo
- Publication number
- CN109278504B CN109278504B CN201810796898.6A CN201810796898A CN109278504B CN 109278504 B CN109278504 B CN 109278504B CN 201810796898 A CN201810796898 A CN 201810796898A CN 109278504 B CN109278504 B CN 109278504B
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- Prior art keywords
- vehicle
- door pocket
- door
- battery case
- reinforcement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
- B60J5/042—Reinforcement elements
- B60J5/0456—Behaviour during impact
- B60J5/0461—Behaviour during impact characterised by a pre-defined mode of deformation or displacement in order to absorb impact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
- B60J5/06—Doors arranged at the vehicle sides slidable; foldable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
- B60K2001/0438—Arrangement under the floor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention provides a vehicle body lower part structure of a sliding door vehicle, which can reduce the collision load acting on a power secondary battery. A vehicle body lower part structure (1) of a sliding door vehicle comprises: a lower door pocket member (21, door pocket) that is disposed below the floor panel (Ve2) along the lower edge of the rear seat side entrance (Ve1, vehicle opening); and a battery case (30) that is adjacent to the lower door pocket member (21, door pocket) in the vehicle width direction and is disposed below the floor panel (Ve2), wherein at least a part of the battery case (30) is overlapped below the lower door pocket member (21, door pocket) and is connected to the lower door pocket member (21, door pocket) in the vehicle body lower portion structure (1) of the sliding door vehicle.
Description
Technical Field
The present invention relates to a vehicle body lower structure of a sliding door vehicle using a sliding door that slides along a door panel to open and close an entrance.
Background
In a vehicle using electric power as a power source, such as an electric vehicle, a secondary battery for power has been conventionally disposed under a floor panel.
For example, in patent document 1, a power secondary battery, which is a heavy object having a large weight among components constituting a vehicle, is disposed under a floor panel, so that the center of gravity of the vehicle is lowered and the running stability is improved.
Documents of the prior art
Patent document
Patent document 1: japanese unexamined patent publication No. 2014-80117
Disclosure of Invention
Problems to be solved by the invention
In the vehicle body structure of patent document 1, when a slide door is used that opens and closes the doorway by sliding the door along the door panel surface, the door pocket portion of the slide door is disposed at a position overlapping the power secondary battery in the vehicle width direction.
Therefore, in the case where the sliding door is hit from the outside, there is a possibility that the collision load acts on the power secondary battery via the door pocket portion.
The present invention has been made in view of the above problems, and an object thereof is to provide a vehicle body lower portion structure of a slide door vehicle capable of reducing a collision load acting on a power secondary battery.
Means for solving the problems
In order to achieve the above object, a vehicle body lower portion structure of a sliding door vehicle according to the present invention includes: a door pocket that is disposed along a lower edge of the vehicle opening portion and below the floor panel; and a battery case that is adjacent to the door pocket in the vehicle width direction and is disposed below the floor panel, wherein at least a part of the battery case is overlapped below the door pocket and is connected to the door pocket.
Effects of the invention
According to the present invention, it is possible to provide a vehicle body lower portion structure of a slide door vehicle capable of reducing a collision load acting on a power secondary battery.
Drawings
Fig. 1 is a perspective view showing a vehicle body lower portion structure of a sliding door vehicle according to the present embodiment.
Fig. 2 is a plan view showing a vehicle body lower portion structure of the sliding door vehicle according to the present embodiment.
Fig. 3 is a cross-sectional view taken along line III-III in fig. 2 showing a vehicle body lower portion structure of the slide door vehicle according to the present embodiment.
Fig. 4 is a cross-sectional view taken along line IV-IV in fig. 2 showing a vehicle body lower portion structure of the slide door vehicle according to the embodiment.
Fig. 5 is a perspective view showing a lower door pocket member of the present embodiment.
Fig. 6 is an enlarged perspective view of a main part of the lower door pocket member according to the present embodiment.
Description of the reference symbols
1: vehicle body lower structure of sliding door vehicle, 10: side member, 21: door pocket (lower door pocket member), 21 a: door pocket main body, 21 d: door pocket cover, 30: battery case, 32: housing side frame, 34: housing cross member, 40: coupling unit, 42: reinforcing bracket, Ve 1: vehicle opening portion (rear seat side entrance/exit), Ve 2: a floor board.
Detailed Description
Embodiments of the present invention will be described in detail with reference to the accompanying drawings as appropriate. The same components are denoted by the same reference numerals, and redundant description thereof is omitted.
As shown in fig. 1, the vehicle Ve of the present embodiment employs a slide door 20 for opening and closing a rear seat side entrance Ve1 (vehicle opening) that opens at a side surface. The vehicle Ve is a so-called electric vehicle using electric power as a power source, and the secondary battery Ba for power is provided under the floor of the vehicle Ve.
The vehicle body lower structure 1 of the sliding door vehicle according to the present embodiment includes a lower door pocket member 21 (door pocket) provided to a side sill 10 of the vehicle Ve and a battery case 30 (see fig. 2) that houses the power secondary battery Ba.
Therefore, the side member 10 provided with the lower door trim member 21 will be explained first.
As shown in fig. 2, the side member 10, which is a strength member of the vehicle Ve, includes a lower edge portion of the rear-seat-side inlet port Ve1, and is disposed over the entire side lower edge portion of the vehicle Ve in the vehicle front-rear direction.
As shown in fig. 3 and 4, the side member 10 is formed by joining a plurality of press-molded plate-like members. The side member 10 includes a side member outer 11, a side member inner 12, and a side member reinforcement 13, and these members are joined together to form the side member 10.
As shown in fig. 3 and 4, the side frame outer 11 forms a substantially tubular shape extending in the vehicle front-rear direction together with the side frame inner 12, and forms an outer shape of a side lower edge portion of the vehicle Ve. The side member outer 11 includes a side member main body 11a, a side member upper edge portion 11b, and a side member lower edge portion 11 c.
The side member outer body 11a has a rail shape having a substantially コ -letter groove shape in cross section and opening inward in the vehicle width direction. A slide hole 11aa formed of a through hole is opened in a portion of the コ -shaped groove bottom of the side member outer body 11a which overlaps with a lower door pocket member 21 described later, so that the slide door 20 slides back and forth.
The side member upper edge portion 11b extends as a joint portion upward of the vehicle from an upper edge portion of the コ -shaped groove opening portion of the side member main body 11 a.
The outer lower edge portion 11c extends as a joint portion from a lower edge portion of the コ -shaped groove opening portion of the outer body 11a toward the vehicle lower side.
As shown in fig. 3 and 4, the side rail inner 12 is joined to a side edge portion of the floor Ve 2. The side rail inner 12 includes a side rail inner body 12a, a side rail inner upper edge portion 12b, and a side rail inner lower edge portion 12 c.
The side rail inner main body 12a has an コ -letter groove shape that opens inward in the vehicle width direction. Further, the side member inner body 12a has a door pocket hole 12aa formed by a through hole opened in a portion of the コ -shaped groove bottom portion overlapping the lower door pocket member 21.
A door pocket body 21a constituting the lower door pocket member 21 is inserted into the door pocket hole 12aa and disposed.
The side rail inner upper edge portion 12b extends as a joint portion upward of the vehicle from the upper edge portion of the コ -shaped groove opening portion of the side rail inner body 12 a.
The inner rail lower edge portion 12c extends as a joint portion from a lower edge portion of the コ -shaped groove opening of the inner rail body 12a toward the vehicle lower side.
With respect to the side inner 12 and the side outer 11, the side inner upper edge portion 12b is joined to the side outer upper edge portion 11b, and the side inner lower edge portion 12c is joined to the side outer lower edge portion 11 c.
Thereby, the side member inner 12 and the side member outer 11 form a tubular shape of the side member 10.
Next, the side member reinforcement 13 will be explained.
As shown in fig. 3 and 4, in order to further improve the strength of the side member 10, a side member reinforcement 13 is disposed in the cylindrical interior of the side member 10 including the side member outer 11 and the side member inner 12 over the entire vehicle vertical direction. Further, as shown in fig. 5, the side member reinforcement 13 extends not only over the rear seat side entrance Ve1 but also over the entire side member 10.
The side member reinforcement 13 includes an outer reinforcement 14, a center reinforcement 15, and an inner reinforcement 16.
The outer reinforcement 14 extends in the vehicle front-rear direction below the lower side door trim member 21 in the cylindrical interior of the side member 10. Further, the outer reinforcement 14 has an outer reinforcement main body 14a, an outer reinforcement upper edge portion 14b, and an outer reinforcement lower edge portion 14 c.
The outer reinforcement body 14a has a rail shape having a substantially コ -letter groove shape in cross section, which opens to the vehicle interior side and extends in the vehicle front-rear direction. The bottom portion of the コ -shaped groove of the outer reinforcement body 14a is arranged to protrude outward in the vehicle width direction from the lower door pocket member 21.
That is, at least a part of the side member reinforcement 13 is disposed to protrude outward in the vehicle width direction from the lower door trim member 21.
As shown in fig. 5, the upper plate portion 14aa and the lower plate portion 14ab of the outer reinforcement body 14a, which form the コ -shaped groove, are formed of a corrugated plate material that is corrugated when viewed from the side of the vehicle.
By configuring the upper plate portion 14aa and the lower plate portion 14ab in the wave plate shape in this way, a larger collision load can be received than in the case of the flat plate shape.
As shown in fig. 3 and 4, the outer reinforcement upper edge portion 14b extends upward of the vehicle from the コ -shaped groove upper opening edge of the outer reinforcement main body 14 a. The outer reinforcement upper edge portion 14b is set as a joint portion, and is joined to outer edge portions (inner reinforcement outer edge portions 16a) of the central reinforcement 15 and the inner reinforcement 16.
Further, a portion of the outer reinforcement upper edge portion 14b that overlaps with a later-described door pocket main body 21a (a portion that overlaps with the door pocket hole 12aa when viewed from the vehicle side surface) is set as the outer door pocket support portion 14 ba.
As shown in fig. 3 and 4, the outer door pocket support portion 14ba is curved inward in the vehicle width direction so that the outer reinforcement 14 has a substantially コ -letter groove shape opening upward in the vehicle when viewed from the side of the vehicle, and supports the door pocket main body 21a while surrounding the lower side of the door pocket main body 21 a. The outer door pocket support portion 14ba is joined to the outer edge portion (inner reinforcement outer edge portion 16a) of the inner reinforcement 16 together with the center reinforcement 15 (center door pocket support portion 15 ba).
The outer reinforcement lower edge portion 14c extends downward of the vehicle from the opening edge of the コ -shaped groove of the outer reinforcement body 14 a. The outer-side reinforcement lower edge portion 14c is joined as a joint portion to the center reinforcement 15 (lower-edge-portion upper joint 15 ca).
The center reinforcement 15 is formed of a plate-like member extending in the vehicle front-rear direction, is disposed so that a plate surface faces the vehicle width direction, and closes the コ -shaped groove opening portion of the outer reinforcement 14. The center reinforcement 15 has a center reinforcement upper edge portion 15b and a center reinforcement lower edge portion 15c (see fig. 5).
The center reinforcement upper edge portion 15b is set as an edge portion on the vehicle upper side of the center reinforcement 15 as a joint portion. The center reinforcement upper edge portion 15b is joined to the side member inner 12 while being sandwiched between the side member outer upper edge portion 11b and the side member inner.
Further, a portion of the center reinforcement upper edge portion 15b overlapping the lower pocket member 21 is set as the center pocket support portion 15 ba.
As shown in fig. 3 and 4, the center door pocket support portion 15ba is curved inward in the vehicle width direction so that the center reinforcement 15 has a substantially コ -shaped groove shape that opens upward in the vehicle when viewed from the side of the vehicle, and overlaps the upper surface of the outer door pocket support portion 14 ba.
That is, the center door pocket support portion 15ba supports the door pocket main body 21a while surrounding the lower side of the door pocket main body 21a together with the outer door pocket support portion 14 ba.
The center reinforcement lower edge portion 15c is set as an edge portion on the vehicle lower side of the center reinforcement 15 as a joint portion, and a joint point is set vertically apart.
A lower edge upper joint 15ca, which is an upper joint of the central reinforcement lower edge 15c, is set as a joint with the outer reinforcement 14 (outer reinforcement lower edge 14 c).
A lower edge portion lower joint 15cb as a lower joint of the center reinforcement lower edge portion 15c is set as a joint with the lower edge portion of the side sill outer 11 (side sill outer lower edge portion 11c) and the lower edge portion of the side sill inner 12 (side sill inner lower edge portion 12 c).
As shown in fig. 3, 4, and 6, the inner reinforcement 16 has a wave plate shape that is wavy when viewed from the vehicle side, extends in the vehicle front-rear direction, is provided between the outer door pocket support portion 14ba (the center door pocket support portion 15ba) and the side sill inner 12, and is joined thereto.
This can suppress the falling of the outer reinforcement 14 (center reinforcement 15) during a side collision, and suppress the reduction in strength of the side member 10 due to the provision of the lower door trim member 21.
Further, the inner reinforcement 16 has an inner reinforcement outer edge portion 16a and an inner reinforcement inner edge portion 16 b.
The inner reinforcement outer edge portion 16a is set as a joint portion as an outer edge portion of the inner reinforcement 16 in the vehicle width direction, and is joined to the outer reinforcement upper edge portion 14 b.
The inner reinforcement inner edge portion 16b is set as an edge portion on the vehicle transverse direction inner side of the inner reinforcement 16 as a joint portion, and is joined to the コ -shaped tub bottom portion 12ab of the tubular side rail inner 12 constituting the side rail 10.
As shown in fig. 3 and 4, a bent portion 12ac that is bent in the vehicle width direction and extends in the vehicle front-rear direction is formed at the コ -shaped groove bottom portion 12 ab. The inner reinforcement inner edge portion 16b is joined to the コ -shaped groove bottom portion 12ab so that an impact load from the inner reinforcement 16 acts on the bent portion 12ac during a side impact.
With this structure, the rigidity of the side member inner 12 can be improved as compared with the case where the コ -shaped tub bottom 12ab is flat.
Thus, the inner reinforcement 16 prevents the side rail reinforcement 13 from falling down when a collision load is input to the side rail inner 12 in a side collision.
Further, it is possible to prevent the strength of the side member inner 12 from being reduced due to the opening of the door pocket hole 12 aa.
In addition, when the コ -shaped groove bottom portion 12ab has sufficient rigidity against the collision load and the provision of the bent portion 12ac is not necessary, the inner reinforcement inner edge portion 16b may be joined to the flat-plate-shaped コ -shaped groove bottom portion 12 ab.
In the present embodiment, the inner reinforcement 16 is limited to the position where the lower door pocket member 21 overlaps the side sill 10, but is not limited to this configuration. For example, the inner reinforcement 16 may be provided over the entire side member 10.
With this structure, the rigidity of the entire side member 10 is further improved, and the load input to the battery case 30 during a side collision can be reduced.
The side members 10 described above are respectively provided at the left and right side lower edge portions of the vehicle Ve (see fig. 1). The pair of side members 10 are connected by 3 cross members Ve3 distributed in the vehicle front-rear direction (see fig. 2).
The vehicle body cross member Ve3 extends in the vehicle width direction, connects the pair of left and right side members 10, and transmits a collision load input to the side members 10 at the time of a side collision.
Of the vehicle body cross members Ve3, the vehicle body center cross member Ve3a provided at the center is disposed at a position overlapping the lower door trim member 21 in the vehicle front-rear direction.
Of the vehicle body cross member Ve3, the vehicle body front cross member Ve3b and the vehicle body center cross member Ve3a provided at the vehicle body front side are connected to the housing cross member 34 (see fig. 2) described later by the connecting portion 45.
Next, the sliding door 20 will be explained.
As shown in fig. 1, the slide door 20 has a door main body 20a and a lower door pocket member 21 (door pocket).
The door main body 20a is a member that openably closes the rear seat side entrance Ve 1. The door main body 20a is provided on the vehicle body so that the door surface faces the vehicle width direction and slides in the vehicle front-rear direction.
The lower door trim member 21 (door trim) supports the door body 20a at the lower side and guides the door body when sliding in the vehicle front-rear direction.
The slide door 20 includes an upper door pocket member 22 for supporting and guiding the door main body 20a from above, and a central door pocket member 23 for supporting and guiding a vertically central portion of the door main body 20a, and a detailed description thereof is omitted here.
Next, the lower door pocket member 21 (door pocket) will be described in detail.
As shown in fig. 2 to 4, the lower door pocket member 21 includes a door pocket main body 21a, a door pocket guide 21b, a door guide 21c, and a door pocket cover 21 d.
The door pocket main body 21a has a substantially rectangular triangular prism shape and a box shape with a side surface opening facing the vehicle exterior side. The door pocket main body 21a is disposed at the front end of the sliding range of the sliding door 20. The door pocket body 21a is provided in a state of penetrating the door pocket hole 12aa of the side rail inner 12 from the vehicle exterior side to the vehicle interior side.
The door pocket guide 21b has a rail shape having a substantially コ -letter groove shape in cross section, and is disposed such that an opening portion of the コ -letter groove faces the vehicle exterior side. The door pocket guide 21b is continuous with the rear end portion of the door pocket body 21a, and is provided along the vehicle exterior side plate of the side rail inner 12 to face the vehicle rear side.
The door guide 21c is provided on the top surfaces of these members in the range from the door pocket main body 21a to the door pocket guide 21 b. The door guide 21c defines a sliding range of the door main body 20a, and the door main body 20a slides along the door guide 21 c.
The door pocket cover 21d is provided on the vehicle interior panel surface at the peripheral edge of the door pocket hole 12aa, and surrounds and supports the door pocket main body 21a from below. The door pocket cover 21d is formed of a substantially right-angled triangular plate-like member that is slightly larger than the door pocket main body 21 a. The door pocket cover 21d is covered with a floor Ve2 having an opening on the upper surface forming the bottom of the vehicle compartment in a state in which the door pocket main body 21a is housed inside.
That is, the lower door pocket member 21 (door pocket) is disposed along the side member 10 and below the floor Ve 2.
In other words, the lower door trim member 21 is disposed below the floor Ve2 along the lower edge of the rear seat side entrance Ve1 (vehicle opening portion).
Next, the battery case 30 will be explained.
The battery case 30 is positioned between the left and right side members 10 and is disposed below the floor Ve2 (see fig. 2 to 4). The battery case 30 is a hollow box-shaped member having a rectangular parallelepiped shape, and is provided below the floor Ve2 in a state in which the power secondary battery Ba is housed therein.
The object to be housed in the battery case 30 is not limited to the power secondary battery Ba. For example, in the case of a hybrid vehicle that alternately drives a gasoline engine and an electric motor as Power sources, it is possible to configure the hybrid vehicle to house an IPU (Intelligent Power Unit) in which a secondary battery for Power and an electronic control Unit or the like that controls the driving and Power regeneration of the electric motor are integrally integrated, and the same operational effects can be obtained.
The battery case 30 includes a case cover 31, case side frames 32, a case bottom 33, and a case cross member 34 (see fig. 3 and 4).
The case 31 constitutes a lid portion of the battery case 30.
The case side frames 32 constitute side wall portions of the battery case 30.
That is, the case side frames 32 extend in the vehicle front-rear direction and the vehicle width direction, and are formed in a rectangular frame shape.
The case bottom 33 constitutes the bottom of the battery case 30.
The case cross member 34 extends in the vehicle width direction as a member that reinforces the battery case 30, and the plurality of case cross members 34 are provided dispersed in the vehicle front-rear direction. One of the housing cross members 34 is provided on the housing bottom 33 at a position overlapping the lower side of the lower door pocket member 21. The housing cross member 34 is formed of a press-formed plate-like member, and includes a housing cross member body 34a and a housing cross member flange portion 34 b. The remaining housing cross member 34 is disposed at a position overlapping the vehicle body cross member Ve3 in the vehicle vertical direction, and is connected by the connecting portion 45.
The housing cross member body 34a has a rail shape having a substantially コ -letter channel shape in cross section. The housing cross member body 34a has a pair of housing cross member flange portions 34b (see fig. 2) at the opening edge portion of the コ -shaped groove.
The pair of case cross member flange portions 34b extend in directions away from each other (vehicle front-rear direction) as joint portions. Housing beam 34 is disposed in a state where the コ -shaped groove opening edge of housing beam main body 34a faces the upper surface of housing bottom 33, and each housing beam flange portion 34b is joined to housing bottom 33.
Further, the case side edge portion 30a of the battery case 30 adjacent to the side member 10 is disposed so as to overlap the lower door pocket member 21 from below, and the vertically overlapping portions are connected by the connecting means 40 (see fig. 3 and 4).
That is, the battery case 30 is disposed below the floor Ve2 adjacent to the lower door trim member 21 (door trim) in the vehicle width direction, and at least a part thereof overlaps and is connected to the lower door trim member 21 from below.
In other words, the case side frame 32 is adjacent to the joining portion of the inner reinforcement inner edge portion 16b and the side rail inner 12 on the vehicle width direction inner side, and extends in the vehicle front-rear direction.
As shown in fig. 6, the coupling unit 40 couples the battery case 30 and the lower door pocket member 21, and includes a coupling ring 41 and a reinforcing bracket 42.
The connecting ring 41 (connecting body) has a stepped cylindrical shape and is provided between the housing lateral beam 34 and the housing side frame 32. The cylindrical hole 41a of the coupling ring 41 communicates with the door cover fixing hole 21da, the case cover hole 31a, and the case bottom fixing hole 33 a.
Door pocket cover fixing hole 21da is a through hole opened in the bottom surface of door pocket cover 21d, case cover hole 31a is a through hole opened in case cover 31, and case bottom fixing hole 33a is a through hole opened in the bottom surface of case bottom 33. Further, a resin member such as a grommet for vibration prevention may be interposed between the coupling ring 41 and the door cover 21 d.
The coupling body of the present embodiment is formed of the coupling ring 41 having a stepped cylindrical shape, but is not limited to this form. For example, the shaft may be formed as a stepped shaft member, and the shaft end may be caulked and fixed to each portion, thereby obtaining the same operational effects.
The coupling means 40 of the present embodiment couples the lower door pocket member 21 and the battery case 30 at a position where they vertically overlap, but is not limited to this configuration. For example, the same operational effects can be obtained by connecting portions overlapping in the vehicle width direction.
The reinforcing bracket 42 is formed of a pair of plate-like members provided in the vehicle width direction. The reinforcing brackets 42 are curved in accordance with the cylindrical outer surface of the coupling ring 41, and sandwich the coupling ring 41 from the front and the rear.
Further, the vehicle width direction inner end of each reinforcement bracket 42 is joined to the front surface or the rear surface of the case cross member 34. The outer ends of the reinforcing brackets 42 in the vehicle width direction are bent in an L shape and joined to the inner surfaces of the case side frames 32.
That is, the reinforcing brackets 42 are provided over the entire range from the housing cross member 34 to the housing side frames 32.
Next, a procedure of performing the coupling using the coupling means 40 will be described.
First, the coupling ring 41 is set on the battery case 30 in a state of being sandwiched by the reinforcing bracket 42 (see fig. 3).
Next, the battery case 30 is disposed so that the cylindrical hole 41a of the coupling ring 41, the door cover fixing hole 21da, the case cover hole 31a, and the case bottom fixing hole 33a overlap and communicate with each other.
Then, the bolt 51 is communicated with each hole, and the nut 52 is screwed to the tip of the bolt 51.
Through the above steps, the battery case 30 and the lower door pocket member 21 are coupled.
As shown in fig. 3, the nut 52 is joined to the upper surface of the door pocket cover 21d by spot welding or the like, and the orientation of the nut 52 is defined.
This eliminates the possibility of damage to the door pocket main body 21a during and after the screwing operation of the bolt 51 and the nut 52.
Further, the engaging position of the nut 52 is not limited to the upper surface of the door pocket cover 21 d. For example, the nut 52 may be joined to the lower surface of the door pocket cover 21d, and the same operational effects can be obtained.
The vehicle body lower portion structure 1 of the sliding door vehicle according to the present embodiment configured as described above can obtain the following operational effects.
In the present embodiment, the battery case 30 is disposed below the floor Ve2, adjacent to the lower door trim member 21 (door trim) in the vehicle width direction.
With this configuration, in the electric vehicle in which the rear-seat-side entrance Ve1 (vehicle opening) is opened and closed by the slide door 20, a space required for installing the battery case 30 can be secured.
In the present embodiment, a part of the battery case 30 overlaps the lower door pocket member 21 from below and is coupled to the lower door pocket member 21.
According to this structure, since the rigidity of the lower door trim member 21 is improved, displacement of the lower door trim member 21 inward in the vehicle width direction can be suppressed when a side collision occurs.
When the lower door trim member 21 deforms inward in the vehicle width direction due to the collision load, the lower door trim member deforms so as to enter between the floor Ve2 and the battery case 30.
This reduces the collision load applied to the battery case 30 by the lower door pocket member 21 at the time of a side collision, and thus reduces damage to the battery case 30.
In the present embodiment, the battery case 30 is provided with a case cross member 34 extending in the vehicle width direction.
With this configuration, the rigidity of the battery case 30 is improved, and deformation of the lower door trim member 21 inward in the vehicle width direction can be suppressed when the vehicle is collided with from the side, and deformation of the battery case 30 can be suppressed.
This can reduce the collision load acting on the power secondary battery Ba (battery) in the battery case 30.
In the present embodiment, the battery case 30 is coupled to the lower door pocket member 21 by the coupling unit 40 provided integrally with the case cross member 34.
According to this structure, when the vehicle is collided with from the side, the collision load acting on the lower door trim member 21 is transmitted to the housing cross member 34, and the deformation of the lower door trim member 21 toward the inside in the vehicle width direction can be suppressed.
In the present embodiment, the reinforcing bracket 42 provided over the entire range from the housing cross member 34 to the housing side frame 32 supports the coupling ring 41 (coupling body).
With this structure, the coupling strength between the lower door pocket member 21 and the battery case 30 can be increased.
Further, since the collision load at the time of a side collision is also transmitted to the case side frames 32 through the connecting units 40, the deformation of the lower door trim member 21 inward in the vehicle width direction can be further suppressed.
In the present embodiment, the door pocket body 21a is provided in a state of penetrating through a door pocket hole 12aa opened in the side member inner 12 from the vehicle exterior side to the vehicle interior side.
With this configuration, the rigidity of the peripheral edge portion of the door pocket hole 12aa can be improved.
The door pocket main body 21a is provided in a closed cross-sectional space surrounded by a door pocket cover 21d and a floor Ve2 constituting a vehicle compartment floor, and the door pocket cover 21d is provided on a vehicle interior panel surface of a peripheral edge portion of a door pocket hole 12aa of the side member inner 12.
With this structure, the rigidity of the peripheral edge portion of the door pocket hole 12aa can be further improved.
This can suppress deformation of the door pocket main body 21a inward in the vehicle width direction during a side collision.
In the present embodiment, the groove shape of each member is formed as an コ -shaped groove, but the present invention is not limited thereto. As long as the shape satisfies the required strength and rigidity, various groove shapes such as V-groove and W-groove may be adopted.
Claims (4)
1. A vehicle body lower structure of a sliding door vehicle, comprising:
a door pocket that is disposed along a lower edge of the vehicle opening portion and below the floor panel; and
a battery case disposed below the floor panel and adjacent to the door pocket in the vehicle width direction,
at least a part of the battery case is overlapped under the door pocket and connected with the door pocket,
the door pocket has:
a door pocket body; and
a door pocket cover fixed to the side member, coupled to the battery case, and supporting the door pocket body,
the door pocket main body is disposed in a closed cross-sectional space surrounded by the door pocket cover and a floor constituting a bottom of the vehicle compartment.
2. The vehicle body lower structure of the sliding door vehicle according to claim 1,
the battery case has a case cross member extending in the vehicle width direction at a position overlapping the door pocket.
3. The vehicle body lower structure of the sliding door vehicle according to claim 2,
the battery case is coupled to the door pocket by a coupling unit integrally provided with the case cross member.
4. The vehicle body lower structure of the sliding door vehicle according to claim 3,
the battery case has case side frames extending in the front-rear direction of the vehicle, constituting side walls of the battery case,
the link unit has a reinforcing bracket that supports a link body and is provided over the entire range from the housing lateral beam to the housing side frame.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017141656A JP6546968B2 (en) | 2017-07-21 | 2017-07-21 | Underbody structure of slide door car |
| JP2017-141656 | 2017-07-21 |
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| Publication Number | Publication Date |
|---|---|
| CN109278504A CN109278504A (en) | 2019-01-29 |
| CN109278504B true CN109278504B (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810796898.6A Active CN109278504B (en) | 2017-07-21 | 2018-07-19 | Vehicle body lower part structure of sliding door vehicle |
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| Country | Link |
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| JP (1) | JP6546968B2 (en) |
| CN (1) | CN109278504B (en) |
Families Citing this family (8)
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|---|---|---|---|---|
| JP6655638B2 (en) * | 2018-02-15 | 2020-02-26 | 本田技研工業株式会社 | Body structure |
| JP7239503B2 (en) * | 2020-01-14 | 2023-03-14 | トヨタ自動車株式会社 | Underbody structure |
| KR20220016723A (en) | 2020-08-03 | 2022-02-10 | 현대자동차주식회사 | Battery-equipped body |
| JP7409255B2 (en) * | 2020-08-05 | 2024-01-09 | スズキ株式会社 | Vehicle battery holding structure |
| CN114571974B (en) * | 2020-11-30 | 2024-02-06 | 本田技研工业株式会社 | Battery support structure |
| JP7325475B2 (en) * | 2021-05-07 | 2023-08-14 | 株式会社神戸製鋼所 | Body structure for electric vehicles |
| CN113997774B (en) * | 2021-11-05 | 2022-10-18 | 一汽奔腾轿车有限公司 | Arrangement method and structure of lower sliding rail of pure electric MPV (Multi-purpose vehicle) vehicle type electric sliding door |
| CN115257962B (en) * | 2022-06-30 | 2023-11-03 | 岚图汽车科技有限公司 | Front floor assembly for installing battery pack and automobile |
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| CN205239123U (en) * | 2014-12-11 | 2016-05-18 | 福特环球技术公司 | Striking absorption system and battery support piece |
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| JP2003260939A (en) * | 2002-03-12 | 2003-09-16 | Nissan Motor Co Ltd | Floor structure for fuel cell electric vehicle |
| JP4577129B2 (en) * | 2005-07-13 | 2010-11-10 | マツダ株式会社 | Lower body structure of sliding door car |
| JP2008024268A (en) * | 2006-07-25 | 2008-02-07 | Toyota Motor Corp | Vehicle body structure |
| JP2008183943A (en) * | 2007-01-26 | 2008-08-14 | Mitsubishi Motors Corp | Structure of resin-made battery case for electric car |
| CN201769669U (en) * | 2010-06-18 | 2011-03-23 | 浙江吉利汽车研究院有限公司 | Power battery mounting structure of electric automobile |
| DE102011082526A1 (en) * | 2011-09-12 | 2013-03-14 | Ford Global Technologies, Llc | Vehicle with sliding door system |
| JP5807476B2 (en) * | 2011-09-22 | 2015-11-10 | 日産自動車株式会社 | Electric vehicle battery pack support structure |
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| JP6015619B2 (en) * | 2013-10-04 | 2016-10-26 | トヨタ自動車株式会社 | Body frame and vehicle underfloor structure |
| JP5870992B2 (en) * | 2013-12-25 | 2016-03-01 | トヨタ自動車株式会社 | Battery mounting structure for vehicles |
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| CN205239123U (en) * | 2014-12-11 | 2016-05-18 | 福特环球技术公司 | Striking absorption system and battery support piece |
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| Publication number | Publication date |
|---|---|
| JP6546968B2 (en) | 2019-07-17 |
| CN109278504A (en) | 2019-01-29 |
| JP2019018822A (en) | 2019-02-07 |
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