JP2006182295A - Car body structure for electric automobile - Google Patents

Car body structure for electric automobile Download PDF

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Publication number
JP2006182295A
JP2006182295A JP2004380689A JP2004380689A JP2006182295A JP 2006182295 A JP2006182295 A JP 2006182295A JP 2004380689 A JP2004380689 A JP 2004380689A JP 2004380689 A JP2004380689 A JP 2004380689A JP 2006182295 A JP2006182295 A JP 2006182295A
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Japan
Prior art keywords
frame
vehicle
subframe
electric
members
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Pending
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JP2004380689A
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Japanese (ja)
Inventor
Seiji Hayashi
Takeshi Koiwa
剛 小岩
誠次 林
Original Assignee
Honda Motor Co Ltd
本田技研工業株式会社
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Application filed by Honda Motor Co Ltd, 本田技研工業株式会社 filed Critical Honda Motor Co Ltd
Priority to JP2004380689A priority Critical patent/JP2006182295A/en
Publication of JP2006182295A publication Critical patent/JP2006182295A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a car body structure for an electric automobile, capable of facilitating installation work for installing an electric part to a car body frame. <P>SOLUTION: This car body structure 10 for an electric automobile is formed in a roughly rectangular frame form to have a space 27 for containing a front and a rear electric parts 13 and 14. It comprises a main frame 15 to compose a major part of the car body frame 11, and a subsidiary frame 16 provided with a right and a left frame members 36 and 37 and a cross frame member 38 that can be combined with the main frame 15 from the underside to compose part of the car body frame 11 as they are connected to the main frame 15, on which the front and the rear electric parts 13 and 14 can be installed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle body structure of an electric vehicle, and more particularly to a vehicle body structure of an electric vehicle in which electric parts are provided on a vehicle body frame below a floor.
Some electric vehicles have electric parts such as a fuel cell unit attached to a vehicle body frame below the floor. As a vehicle body structure of this electric vehicle, a structure in which a plurality of support frames are spanned between left and right side members and electric components are attached to these support frames is known (for example, see Patent Document 1).
JP 2003-205754 A
According to the vehicle body structure of Patent Document 1, the vehicle body frame is configured by extending the left and right side members in the longitudinal direction of the vehicle body and spanning a plurality of support frames between the left and right side members.
An electrical component such as a fuel cell unit is placed on the support frame, and the mounted electrical component is supported by a support belt, so that the electrical component is attached to the support frame.
Here, in the vehicle body structure disclosed in Patent Document 1, an electrical component such as a fuel cell unit is attached to the support frame, and then the electrical component is mounted on the vehicle body frame by attaching the support frame to the vehicle body frame.
Therefore, it is necessary to increase the rigidity of the support frame in order to improve the workability when attaching the electrical parts to the support frame and the workability when attaching the support frame to the body frame and mounting the electrical parts on the body frame. It was.
Therefore, in order to increase the rigidity of the support frame, it is necessary to increase the thickness of the support frame or to form a portion to which the electrical component is attached in a step shape.
However, if the support frame is made thick or the support frame is formed in a stepped shape, it is difficult to keep the vehicle height of the electric vehicle low.
  An object of the present invention is to provide a vehicle body structure of an electric vehicle that can improve the workability of attaching an electric component to a vehicle body frame and can keep the vehicle height of the electric vehicle low.
  According to a first aspect of the present invention, there is provided a vehicle body structure of an electric vehicle in which electric parts such as a battery and a fuel cell are provided in a vehicle body frame below the floor, and a substantially rectangular frame is provided to provide a space for storing the electric parts. A main frame that forms a main part of the body frame, and a frame member that can be assembled to the main frame from below and that forms a part of the body frame by being connected to the main frame; And a sub-frame to which can be attached.
The body frame is divided into a main frame and a subframe, and electric parts can be attached to the subframe.
By dividing the body frame into a main frame and a sub frame, the sub frame is kept compact. And after mounting an electrical component on the subframe suppressed compactly, a subframe is attached to a main frame.
By downsizing the subframe, it is possible to hold the subframe in an easy-to-attach posture when mounting electrical components.
Therefore, even when there are a plurality of electrical components, electrical components from a plurality of schools can be easily attached to the subframe.
By attaching the subframe to which the electrical parts are attached to the main frame from below, the electrical parts are attached to the vehicle body frame.
In this manner, by attaching a plurality of electrical components to the subframe and attaching the subframe to the main frame, it is possible to facilitate the work of attaching the plurality of electrical components to the vehicle body frame.
Further, the sub frame includes a frame member, and the frame member is connected to the main frame, whereby the frame member constitutes a part of the vehicle body frame.
Thereby, the rigidity of a vehicle body frame is securable by attaching to a subframe to a main frame.
Furthermore, the rigidity of a sub-frame can be improved by providing a frame member in the sub-frame for holding an electrical component. Accordingly, it is possible to improve the workability when attaching the electrical components to the subframe and the workability when mounting the electrical components on the mainframe by attaching the subframe to the mainframe.
In addition, since the rigidity of the subframe is increased, the thickness of the subframe can be reduced and the vehicle height of the electric vehicle can be kept low.
  3. The subframe according to claim 2, wherein the sub-frame includes at least two frame members at a predetermined interval, and the electrical components are disposed between the frame members, and the electrical components are attached to the respective frame members. To do.
Electrical components were placed between the frame members, and the electrical components were attached to the frame members.
Thereby, an electrical component can be used also as a reinforcement member of a frame member.
  4. The subframe according to claim 3, wherein a panel member that closes the space from the lower side is provided on the frame member, and a protruding portion that protrudes downward is formed on a bottom surface of the panel member, and the frame member is provided on the protruding portion. A portion connected to the main frame is attached.
By providing a raised portion on the panel member, the thickness of the raised portion is increased. And the site | part by which a frame member is connected with a main frame was attached to the thick protruding part.
Thereby, the site | part with which a frame member is connected with a main frame can be firmly supported by a protruding part.
  In the invention according to claim 1, when attaching the electrical component to the subframe, the work of attaching the electrical component to the subframe is facilitated by maintaining the posture in which the subframe can be easily attached, thereby improving productivity. There is an advantage that can be.
  Furthermore, the invention according to claim 1 has an advantage that the rigidity of the vehicle body frame can be ensured by constituting a part of the vehicle body frame with the frame member when the main frame is attached to the subframe.
  Further, in the invention according to claim 1, by providing the subframe with a frame member to increase the rigidity of the subframe, workability when attaching electrical components to the subframe, or attaching the subframe to the mainframe and the mainframe There is an advantage that the workability at the time of mounting the electric parts can be improved and the height of the electric vehicle can be kept low by reducing the thickness of the subframe.
  The invention according to claim 2 has an advantage that the rigidity of the vehicle body frame can be more suitably secured by attaching the electrical component to the frame member and also using the electrical component as a reinforcing member for the frame member.
  The invention according to claim 3 has an advantage that the rigidity of the vehicle body frame can be more suitably secured by firmly supporting the portion where the frame member is connected to the main frame with the raised portion.
  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. “Front”, “Rear”, “Left”, “Right”, “Up”, “Down” follow the direction seen from the driver, Fr is front, Rr is rear, L is left, R is right Indicates.
FIG. 1 is a perspective view showing a vehicle body structure of an electric vehicle according to the present invention.
An electric vehicle body structure 10 includes a floor 12 at an upper part of a body frame 11 and front and rear electrical parts (electric parts) 13 and 14 provided on the body frame 11 below the floor 12. 15 and the subframe 16 are divided into two members.
For example, the front and rear electrical components 13 and 14 correspond to a battery, a fuel cell, or the like.
Left and right front frames 22, 22 extend from the front cross member 21 of the vehicle body frame 11 toward the front of the vehicle body.
Further, left and right rear frames 25, 25 extend from the rear cross member 24 of the vehicle body frame 11 toward the rear of the vehicle body.
FIG. 2 is an exploded perspective view showing a vehicle body structure of an electric vehicle according to the present invention.
The main frame 15 is a member that is formed in a substantially rectangular frame body so as to have a space 27 for housing the front and rear electrical components 13 and 14 and constitutes a main part of the vehicle body frame 11.
In the main frame 15, left and right side sills 28, 29 are arranged at an interval of substantially the vehicle body width, front end portions 28 a, 29 a of the left and right side sills 28, 29 are connected by a front cross member 21, The rear end portions 28b, 29b of 29 are connected by the rear cross member 24, whereby a substantially rectangular frame is formed.
By forming the main frame 15 in the frame, a space 27 is formed in the frame.
A left mounting bracket 31 is provided on the inner wall 28 c of the left side sill 28, and a right mounting bracket 32 is provided on the inner wall 29 c of the right side sill 29.
A pair of front mounting brackets 33, 33 are provided on the inner wall 21 a of the front cross member 21, and a pair of rear mounting brackets 34, 34 are provided on the inner wall 24 a of the rear cross member 24.
The sub-frame 16 can be assembled to the main frame 15 from below so that left and right frame members (frame members) 36 and 37, a cross frame member (frame member) 38, and a panel member 41 are used as an example by CFRP (carbon fiber reinforcement). It is a member integrally molded with plastic.
CFRP is a carbon fiber reinforced resin in which carbon fibers are laminated in a mold.
By molding the subframe 16 with CFRP, the weight can be reduced and the rigidity can be increased.
Front and rear electrical components 13 and 14 are mounted on the subframe 16.
The left and right frame members 36 and 37 and the cross frame member 38 are members that constitute a part of the vehicle body frame 11 by being connected to the main frame 15.
The subframe 16 includes a raised portion 42 that is raised downward on the bottom surface 41 a of the panel member 41.
The raised portion 42 will be described in detail with reference to FIG.
FIG. 3 is a perspective view showing a sub-frame of the vehicle body structure according to the present invention.
The left and right frame members 36 and 37 are arranged in parallel with each other at a predetermined interval L. A cross frame member 38 is provided across the left and right frame members 36 and 37 at the center of the left and right frame members 36 and 37 in the longitudinal direction of the vehicle body. The left and right frame members 36 and 37 and the cross frame member 38 form a substantially H-shape.
The right frame member 37 is a member that has a substantially rectangular cross section and is provided on the upper surface 41 b of the panel member 41.
The right frame member 37 is provided with a front assembly step 44 at the front end 37a, a front mounting hole 44a is formed in the front assembly step 44, and a rear assembly step 45 is provided at the front end 37b. A rear mounting hole 45 a is formed in the rear assembly step 45.
The right frame member 37 is provided with a front support piece 47 in the front half of the inner wall 37c, a pair of mounting holes 47a and 47a are formed in the front support piece 47, and a rear support piece 48 is provided in the rear half of the inner wall 37c. The rear support piece 48 is a member formed with a pair of mounting holes 48a, 48a.
The front and rear mounting holes 44 a and 45 a are holes that penetrate the raised portion 42 of the panel member 41.
The front and rear support pieces 47 and 48 are members provided on the upper surface 41 b of the panel member 41.
The mounting holes 47 a and 48 a provided in the front and rear support pieces 47 and 48 are holes that penetrate the panel member 41.
  The left frame member 36 is a member that is bilaterally symmetrical to the right frame member 37.
  The cross frame member 38 is provided with a central connecting portion 51 between the left and right frame members 36, 37, the left protruding portion 52 protrudes to the left from the outer wall 36 d of the left frame member 36, and the right from the outer wall 37 d of the right frame member 37 to the right The protrusion 53 is protruded.
The central connecting portion 51 is a member that is formed in a substantially rectangular cross section, is provided on the upper surface 41b of the panel member 41, and has an attachment hole 51b formed in the central portion 51a.
The attachment hole 51 b is a hole that penetrates the raised portion 42 of the panel member 41.
The left protrusion 52 is formed in a substantially rectangular cross section, is provided on the upper surface 41b of the panel member 41, is provided with a left assembling step 55 at an end, and a mounting hole 55a is formed in the left assembling step 55. It is.
The left mounting hole 55 a is a hole that penetrates the panel member 41.
Similarly to the left protrusion 52, the right protrusion 53 is formed in a substantially rectangular cross section, provided on the upper surface 41b of the panel member 41, and provided with a right assembly step 56 at the end. This is a member in which a mounting hole 56a is formed.
The attachment hole 56 a is a hole that penetrates the panel member 41.
The panel member 41 is a member formed in a substantially rectangular shape that is slightly larger than the space 27 (see FIG. 2) of the main frame 15, and in addition to the mounting holes 44a, 45a, 47a, 48a, 55a, 56a described above, Each mounting hole 57 (... indicates a plurality) is formed.
By attaching the panel member 41 to the main frame 15, the lower portion of the space 27 is closed.
The front electric member 13 is a member formed in a substantially rectangular shape, and a left mounting member 61 is provided on the left side wall, and a right mounting member 62 is provided on the right side wall.
The left attachment member 61 includes a horizontal piece 61a, and a pair of attachment holes 61b and 61b are formed in the horizontal piece 61a.
  The right mounting member 62 is a member that is bilaterally symmetric with the left mounting member 61, and the same reference numerals as those of the left mounting member 61 are given to the respective components, and the description thereof is omitted.
  When the front electrical member 13 is mounted, the left and right horizontal pieces 61a and 61a are placed on the left and right front support pieces 47 and 47, respectively, and the mounting holes 61b... It corresponds to the mounting holes 47a of the pieces 47, 47.
In this state, the bolts 64 are inserted into the mounting holes 61b, 47a, and the nuts 65 are screwed to the screw portions protruding from the bottom surface 41a of the panel member 41.
Thereby, the front electrical member 13 is attached to the left and right front support pieces 47, 47 (that is, the left and right frame members 36, 37).
The rear electric member 14 is a member similar to the front electric member 13, and the same reference numerals as those of the front electric member 13 are given to the respective components, and the description thereof is omitted.
The rear electric member 14 is attached to the left and right rear support pieces 48 and 48 (that is, the left and right frame members 36 and 37) with bolts 64 and nuts 65, as in the case of the front electric member 13.
  That is, the sub-frame 16 includes left and right frame members 36 and 37 with a predetermined interval L, the front and rear electrical components 13 and 14 are disposed between the left and right frame members 36 and 37, and the front and rear electrical components. 13 and 14 are attached to the left and right frame members 36 and 37, respectively.
As described above, the body frame 11 is divided into the main frame 15 and the subframe 16, and the front and rear electrical components 13 and 14 are attached to the subframe 16.
By dividing the vehicle body frame 11 into a main frame 15 and a sub frame 16, the sub frame 16 is kept compact.
By downsizing the sub-frame 16, it is possible to hold the sub-frame 16 in an easy-to-attach posture when mounting the front and rear electrical components 13 and.
Therefore, even when there are a plurality of front and rear electrical components 13 and 14, it is possible to easily attach the electrical components 13 and 14 from a plurality of schools to the subframe 16.
In addition, the front and rear electrical components 13 and 14 are disposed between the left and right frame members 36 and 37, and the disposed electrical components 13 and 14 are attached to the left and right frame members 36 and 37.
As a result, the left and right electrical components 13 and 14 can also be used as reinforcing members for the left and right frame members 36 and 37.
In addition, the rigidity of the subframe 16 can be improved by providing the left and right frame members 36 and 37 and the cross frame member 38 on the subframe 16 for holding the front and rear electrical components 13 and 14.
Accordingly, workability when attaching the front and rear electrical components 13 and 14 to the subframe 16 and mounting of the front and rear electrical components 13 and 14 on the main frame 15 by attaching the subframe 16 to the main frame 15 (see FIG. 2). It is possible to improve workability when performing the process.
  Furthermore, since the rigidity of the sub-frame 16 is increased, the thickness of the sub-frame 16 can be reduced, and the vehicle height of the electric vehicle can be kept low.
Returning to FIG. 2, the floor 12 is a plate-like member formed in a substantially rectangular shape that is slightly larger than the space 27 of the main frame 15, and has a plurality of mounting holes 71.
By attaching the floor 12 to the main frame 15, the upper side of the space 27 is closed.
The floor 12 is reinforced by reinforcing a plurality of ribs 12a between the upper and lower plate members.
The floor 12 is not limited to the shape shown in the figure, and a plate-like member in which a honeycomb material is sandwiched between upper and lower plate materials, a plate-like member in which a plurality of ribs are formed in a corrugated shape between upper and lower plate materials, and the like. Can also be suitably used.
In this way, the floor 12 is formed by a plate-like member reinforced by the ribs 12a... Or the honeycomb material, and the floor 12 is attached to the main frame 15, whereby the main frame 15 is reinforced with the floor 12.
  The plurality of mounting holes 71 are: mounting holes 31a and 32a of the left and right mounting brackets 31 and 32; mounting holes 33a and 33a of the front mounting brackets 33 and 33; mounting holes 34a and 34a of the rear mounting brackets 34 and 34; It is formed at a position corresponding to the mounting holes 51 b of the part 51 and the mounting holes 57 at the four corners of the panel member 41.
With the front and rear electrical components 13 and 14 mounted on the subframe 16, the subframe 16 is set on the main frame 15 from below.
Accordingly, the front assembly step portions 44 and 44 of the left and right frame members 36 and 37 engage with the front mounting brackets 33 and 33 of the main frame 15.
Further, the rear assembly step portions 45, 45 of the left and right frame members 36, 37 engage with the rear mounting brackets 34, 34 of the main frame 15.
In addition, the left and right assembly steps 55 and 56 of the cross frame member 38 engage with the left and right mounting brackets 31 and 32 of the main frame 15.
In this state, the bolts 73 and 73 are inserted into the mounting holes 44a and 44a of the front assembly step portions 44 and 44 and the mounting holes 33a and 33a of the front mounting brackets 33 and 33, respectively.
Bolts 73 and 73 are inserted into the mounting holes 45a and 45a of the rear assembly steps 45 and 45 and the mounting holes 34a and 34a of the rear mounting brackets 34 and 34, respectively.
Bolts 73 are inserted into the mounting holes 55 a of the left assembling step 55 and the mounting holes 31 a of the left mounting bracket 31.
Bolts 73 are inserted into the mounting holes 56 a of the right assembly step 56 into the mounting holes 32 a of the right mounting bracket 32.
The bolts 73 are inserted into the mounting holes 57 at the four corners of the panel member 41, and the spacers 74 are fitted into the bolts 73.
This state is shown in FIG.
The respective bolts 73 are inserted into the mounting holes 71 of the floor 12, and nuts 75 are screwed to the screw portions protruding from the floor 12.
As a result, the subframe 16 and the floor 12 are attached to the main frame 15.
Thus, after attaching the front and rear electrical components 13, 14 to the subframe 16, the subframe 16 is attached to the main frame 15 from below. At this time, the plurality of electrical components 13 and 14 can be attached to the main frame 15 at the same time.
Therefore, the plurality of electrical components 13 and 14 can be easily attached to the body frame 11.
Further, the subframe 16 includes left and right frame members 36 and 37 and a cross frame member 38. The frame members 36, 37, 38 are connected to the main frame 15 so that the frame members 36, 37, 38 constitute a part of the vehicle body frame 11.
Thus, the rigidity of the vehicle body frame 11 can be secured by attaching (connecting) the main frame 15 to the subframe 16.
FIG. 4 is a perspective view of the body structure of the electric vehicle according to the present invention as seen from the bottom side. In FIG. 4, the above-described raised portion 42 will be described in detail.
The raised portion 42 is raised downward from the bottom surface 41 of the panel member 41, and the raised portion 42 is formed in a cross shape (substantially X shape).
  The left and right front end portions 42a, 42a of the raised portion 42 are provided below the front end portions 37a, 37b of the left and right frame members 36, 37, and the front end portions 42a, 42a are attached to the front end portions 37a, 37b with bolts 73, 73.
Furthermore, the left and right rear end portions 42b, 42b of the raised portion 42 are provided below the front end portions 37b, 37c of the left and right frame members 36, 37, and the rear end portions 42b, 42b are bolts 73, 73 with the front end portions 37b, Attach to 37c.
In addition, the central portion 42 c of the raised portion 42 is provided below the central portion 51 a of the central coupling portion 51, and the central portion 42 c is attached to the central coupling portion 51 with a bolt 73.
Here, front end portions 37 a and 37 a (see FIG. 3) of the left and right frame members 36 and 37 are portions where the frame members 36 and 37 are connected to the main frame 15.
In addition, rear end portions 37 b and 37 b (see FIG. 3) of the left and right frame members 36 and 37 are portions where the frame members 36 and 37 are connected to the main frame 15.
Thus, the raised portion 42 can firmly support the portion where the frame members 36 and 37 are connected to the main frame 15.
FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. 1, and shows a state where a floor is attached to the body frame. FIG. 6 is an exploded sectional view showing a vehicle body structure of an electric vehicle according to the present invention.
The left assembling step 55 of the cross frame member 38 is a horizontal plane as an example. The left mounting bracket 31 of the main frame 15 includes a step portion 31 b that overlaps the left assembly step portion 55.
The step portion 31 b is formed horizontally as an example so as to overlap the left assembly step portion 55.
The right assembly step portion 56 of the cross frame member 38 is a horizontal plane as an example. The right mounting bracket 32 of the main frame 15 includes a step portion 32 b that overlaps the right assembly step portion 56.
The step portion 32 b is formed horizontally as an example so as to overlap the right assembly step portion 56.
According to this configuration, the left assembled step portion 55 of the cross frame member 38 is engaged with the step portion 31 b of the left mounting bracket 31 by setting the sub frame 16 at the attachment position of the main frame 15.
At the same time, the right assembly step portion 56 of the cross frame member 38 engages with the step portion 332 b of the right mounting bracket 32.
Bolts 73 are inserted into the mounting holes 55 a of the left assembling step 55 and the mounting holes 31 a of the left mounting bracket 31.
Bolts 73 are inserted into the mounting holes 56 a of the right assembly step 56 into the mounting holes 32 a of the right mounting bracket 32.
The screw portions of the bolts 73 and 73 protrude upward from the floor 12 through the left and right mounting brackets 31 and 32. The nuts 75 and 75 are screwed to the protruding threaded portion.
Thus, the left and right assembly step portions 55 and 56 are attached to the left and right attachment brackets 31 and 32, respectively, and the cross frame member 38 is connected to the main frame 15.
  5 and 6, the structures of the left and right assembly step portions 55 and 56 and the left and right mounting bracket step portions 31 and 32 have been described. These structures are the front and rear assembly step portions 44 shown in FIG. , 45 and the front and rear mounting brackets 33, 34 are the same.
  Therefore, similarly to the cross frame member 38, the front assembly step portions 44, 44 are attached to the front mounting brackets 33, 33, and the rear assembly step portions 45, 45 are attached to the rear attachment brackets 34, 34, so The frame members 36 and 37 can be connected to the main frame 15.
  Further, a bolt 73 is also inserted into the mounting hole 51 b of the center connecting portion 51, and a nut 75 is screwed to a screw portion protruding upward from the floor 12 via the center connecting portion 51.
  In FIGS. 5 and 6, the left and right assembly step portions 55 and 56 and the step portions 31 b and 32 b are described as horizontal surfaces, but the present invention is not limited to this, and may be inclined surfaces, for example.
  Next, the assembly process of the body structure of the electric vehicle will be described with reference to FIGS. 7 and 8, for ease of understanding, an example in which the cross frame member 38 is connected to the main frame 15 will be described, and description of connecting the left and right frame members 36 and 37 to the main frame 15 will be omitted. To do.
FIGS. 7A and 7B are views for explaining an example in which an electric member is mounted on a subframe of a vehicle body structure of an electric vehicle according to the present invention.
In (a), the front electrical parts 13 are attached to the front support pieces 47, 47 of the left and right frame members 36, 37 with bolts 64,... Is installed.
Similarly, the rear electrical component 14 (see FIG. 2) is mounted on the subframe 16.
  In (b), the sub-frame 16 is set at the attachment position of the main frame 15 as shown by the arrow B from below.
FIGS. 8A and 8B are views for explaining an example in which a sub-frame is attached to the main frame of the body structure of the electric vehicle according to the present invention.
In (a), the left assembled step 55 of the cross frame member 38 engages with the step 31 b of the left mounting bracket 31. At the same time, the right assembly step 56 of the cross frame member 38 engages with the step 32 b of the right mounting bracket 32.
The bolt 73 is inserted into the mounting hole 55a of the left assembling step 55 and the mounting hole 31a of the left mounting bracket 31 as shown by an arrow C.
The bolt 73 is inserted into the mounting hole 56a of the right assembly step 56 into the mounting hole 32a of the right mounting bracket 32 as shown by an arrow C.
Next, the floor 12 is set on the top of the main frame 15 as indicated by an arrow D.
In (b), the threaded portions of the bolts 73, 73 protrude upward from the floor 12. The nuts 75 and 75 are screwed to the protruding threaded portion.
As a result, the left assembling step 55 is attached to the left mounting bracket 31, and the right assembling step 56 is attached to the right mounting bracket 32, and the cross frame member 38 is connected to the main frame 15 to obtain the vehicle body frame 10. .
  In the above embodiment, the example in which the sub frame includes three members, that is, the left and right frame members and the cross frame member, has been described. However, the present invention is not limited thereto, and the left and right frame members are provided in the sub frame. It is also possible to provide only.
  In the above-described embodiment, the example in which the front and rear electrical components 13 and 14 are mounted on the subframe 16 has been described. However, it is possible to deal with one or more than three electrical components. .
  Furthermore, although the said embodiment demonstrated the example which provided the protruding part 42 in the panel member 41 of the sub-frame 16, it is not restricted to this, The panel member 41 does not need to be provided with the protruding part 42.
In the above-described embodiment, the example in which the left and right frame members 36 and 37, the cross frame member 38, and the panel member 41 are integrally formed with CFRP has been described. However, the present invention is not limited to this, and is formed of other materials such as aluminum. It is also possible to do.
Furthermore, the left and right frame members 36 and 37 and the cross frame member 38 and the panel member 41 can be formed separately and integrated after the formation.
  The present invention is suitable for application to a vehicle body structure of an electric vehicle in which electric parts are provided on a vehicle body frame below the floor.
It is a perspective view which shows the vehicle body structure of the electric vehicle which concerns on this invention. It is a disassembled perspective view which shows the vehicle body structure of the electric vehicle which concerns on this invention. It is a perspective view which shows the sub-frame of the vehicle body structure which concerns on this invention. It is the perspective view which looked at the vehicle body structure of the electric vehicle which concerns on this invention from the bottom face side. 5 is a cross-sectional view taken along line 5-5 of FIG. 1 is an exploded sectional view showing a vehicle body structure of an electric vehicle according to the present invention. It is a figure explaining the example which mounts an electrical member in the sub-frame of the vehicle body structure of the electric vehicle which concerns on this invention. It is a figure explaining the example which attaches a sub-frame to the main frame of the vehicle body structure of the electric vehicle which concerns on this invention.
Explanation of symbols
  DESCRIPTION OF SYMBOLS 10 ... Electric vehicle body structure, 11 ... Body frame, 12 ... Floor, 13 ... Front electrical part (electric part), 14 ... Rear electrical part (electric part), 15 ... Main frame, 16 ... Subframe, 27 ... Space , 36 ... Left frame member (frame member), 37 ... Right frame member (frame member), 39 ... Cross frame member (frame member), 41 ... Panel member, 41a ... Bottom surface of panel member, 42 ... Raised portion, 37a, 37a: Front end portions of the left and right frame members 36, 37 (portions where the frame members 36, 37 are connected to the main frame 15), 37b, 37b ... Rear end portions of the left and right frame members 36, 37 (frame members 36, 37) Are connected to the main frame 15).

Claims (3)

  1. In the body structure of an electric vehicle in which electric parts such as a battery and a fuel cell are provided on the body frame below the floor,
    A main frame that forms a substantially rectangular frame to provide a space for storing the electrical components, and constitutes a main part of the body frame;
    An electric device comprising: a sub-frame that can be assembled to the main frame from below, includes a frame member that forms a part of the vehicle body frame by being connected to the main frame, and to which the electric component can be attached. Auto body structure.
  2.   2. The subframe includes at least two frame members at a predetermined interval, and the electrical components are arranged between the frame members, and the electrical components are attached to the respective frame members. The body structure of an electric car.
  3. The subframe is provided with a panel member on the frame member that closes the space from below.
    Provided with a raised portion that protrudes downward on the bottom surface of this panel member,
    The body structure of the electric vehicle according to claim 1, wherein a portion where the frame member is connected to the main frame is attached to the raised portion.
JP2004380689A 2004-12-28 2004-12-28 Car body structure for electric automobile Pending JP2006182295A (en)

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JP2004380689A JP2006182295A (en) 2004-12-28 2004-12-28 Car body structure for electric automobile

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JP2004380689A JP2006182295A (en) 2004-12-28 2004-12-28 Car body structure for electric automobile

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JP2006182295A true JP2006182295A (en) 2006-07-13

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US20180108891A1 (en) * 2016-10-14 2018-04-19 Inevit, Inc. Battery module compartment and battery module arrangement of an energy storage system
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