JP2936955B2 - Electric car floor structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structure of an electric vehicle.

[0002]

2. Description of the Related Art In order to mount a battery as a drive source used in an electric vehicle, for example, Japanese Patent Application Laid-Open No.
A structure disclosed in Japanese Patent Application Laid-Open No. 18-182 is known. In this structure, a battery storage frame is provided here by effectively utilizing a side member and a cross member that form a frame of an automobile and a vertical bracket that connects them, and the battery is stored and fixed in the battery storage frame. Things.

[0003]

However, in the above-mentioned conventional structure, when the battery is mounted on the battery storage frame or when the battery in the battery storage frame is replaced, the battery storage frame is not moved. It is necessary to perform the fixing work in a narrow space of the vehicle body while aligning the batteries in front and rear, and there is a problem that workability is poor.

Accordingly, the present invention provides a floor structure of an electric vehicle that can easily perform a battery mounting operation.

[0005]

To lower the upper floors SUMMARY OF THE INVENTION, this is an upper floor a floor structure for an electric vehicle having a lower floor divided, the mounting portion of the battery is formed on the lower floor, placed A frame is provided around the part
The frame has a locking portion, while the upper
A is provided with a locking member for supporting the locking portion.
The lower floor is detachably supported on the upper floor by the engagement between the locking member and the locking portion .

On the lower floor, a battery mounting portion is separated by members arranged in a lattice, and frames are provided around the mounting portion, and locking portions are provided on both sides of the frame. while formed, the locking member is provided for supporting the locking portion on each side of the upper floor, by the engagement between the locking member and the locking portion, the lower floor is supported detachably on the upper floor May be used.

Further, on the lower floor, a battery mounting portion is separated by members arranged in a lattice, and a frame is provided around the mounting portion, and locking portions are provided on both sides of the frame. On the other hand, a locking member that supports the locking portion is provided on both sides of the upper floor, and the locking member and the locking portion are engaged with the locking member and the locking portion. An unlocked position where the lower floor can be released and the lower floor can be lowered, and the upper floor and the lower floor are relatively slid in the vehicle longitudinal direction from the unlocked position to engage the locking member and the locking portion. A structure in which a lock position is set may be used.

[0008]

The battery is mounted on the battery mounting portion provided on the lower floor, and the lower floor on the lower floor is attached to the upper floor.

In addition, the battery is mounted on the mounting portion of the battery provided on the lower floor, and the locking portion provided on the frame of the lower floor is locked with the locking member on the upper floor so that the lower floor can be moved upward. Attach to the floor.

[0010] Further, after the battery is mounted on the battery mounting portion provided on the lower floor, the lower floor is raised to the unlock position of the upper floor and moved to the front or rear side, so that the frame of the lower floor can be moved. The locking portion provided at the locking position is locked to the locking member on the upper floor,
The lower floor is attached to the upper floor.

[0011]

An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 2, the upper floor 1 has a floor panel 3 attached to an upper part of a vehicle body side member 2. The floor panel 3 has a floor tunnel 4 at a substantially central portion in the front-rear direction, and a plurality of reinforcements 5 are provided on the upper surface of the floor panel 3 in the vehicle width direction.

The vehicle body side member 2 has front and rear directions (FR
(Shows the front side). The side members 6 are connected on the front side by a front cross member 7 provided in the vehicle width direction and on the rear side by a rear cross member 8 similarly provided in the vehicle width direction.
A side sill 10 is attached to the upper half of the outer wall of the side member 6 via an outrigger 9. As shown in FIG. 3, the side member 6 is formed so that the portions corresponding to the front and rear portions of the vehicle compartment are raised obliquely forward and rearward, and only the central portion 6A in the front-rear direction is located at the lower position.

On the other hand, reference numeral 11 denotes a lower floor, and the lower floor 11 has side plates 13 as frames on both sides on a plate 12, and a front frame 14 and a rear frame 15 as frames are attached to the front and rear, respectively. A center frame 16 as a member is mounted between the center of the front frame 14 and the center of the rear frame 15, and a partition frame 17 as three members is mounted across the center frame 16. Therefore, the mounting portion 19 of the battery 18 is defined by the frames arranged in a lattice.

As shown in FIG. 1, a flange member 20 as a locking member is provided in the center portion 6A of each side member 6 of the upper floor 1 and at the lower portion of the outer wall in the front-rear direction as shown in FIG. The upper side wall of each side frame 13 of the lower floor 11 is provided with the flange member 20 extending inward and forward.
Is provided with a flange portion 21 serving as a locking portion that engages with the flange portion 21. At the front end of the central portion 6A of the side member 6, there is provided a stopper 22, which receives the front end of the side frame 13 and regulates the forward movement of the lower floor 11, as shown in FIG.

Therefore, by inserting the front end side of the flange portion 21 of the lower floor 11 from the rear end side of the flange member 20 of the upper floor 1 and sliding the lower floor 11 forward, the lower floor 11 is connected to the upper floor 1. It will be supported detachably.

Then, as shown in FIG.
By inserting a bolt 23 from the upper wall 13A of the side frame 13 into the lower wall 6B of the side member 6 of the upper floor 1, and tightening it to the weld nut 25 fixed to the retainer 24 in the side member 6, The floor 1 and the lower floor 11 are fixed. The lower floor 11
Bolt insertion hole 26 in lower wall 13B of side frame 13
Has a cap 27 attached thereto. A collar 28 is interposed between the side member 6 and the retainer 24.

According to the structure of the embodiment, to mount the battery 18, first, the battery 18 is installed on the mounting portion 19 of the lower floor 11. At this time, since each mounting portion 19 is defined by each frame arranged in a lattice, the battery 18 can be easily installed in a predetermined place.

Next, the lower floor 11 on which the battery 18 is installed is raised, so that the front end of the lower floor 11 faces the rear end of the central portion 6A of the side member 6 of the upper floor 1 as shown in FIG. The lower floor 11 is raised rearward, and the flange 21 at the tip of the side frame 13 of the lower floor 11 is inserted into the rear end of the flange member 20 of the side member 6 of the upper floor 1 to slide the lower floor 11 forward. Thereby, the lower floor 11 becomes the upper floor 1
Supported by

When the bolt 23 is inserted from the side frame 13 of the lower floor 11 and the bolt 23 is tightened to the weld nut 25 of the floor 1, the lower floor 1
1 can be attached to the upper floor 1. When the bolt 23 is tightened, the flange member 20 of the upper floor 1 and the flange 2 of the lower floor 11 are required.
Since the lower floor 11 is engaged with the upper floor 1, the lower floor 11 is securely supported by the upper floor 1, so that the bolt 23 can be easily tightened.

The lower floor 11 is an upper floor 1
Central part 6A of side member 6 of upper floor 1
Is restricted by a stopper 22 provided at the front end of the lower floor 1 even if a force acts on the lower floor 11 in the forward direction during a full vehicle collision, for example.
1 does not move forward.

If the flange member 20 and the flange portion 21 are formed in a V-shaped cross section as shown in FIG. 4, for example, the upper floor 1 and the lower floor 11 are centered in the left-right direction, and 1 and the lower floor 11 can be set at the optimum positions in the left-right direction by the engagement between the flange member 20 and the flange portion 21.

Next, a second embodiment of the present invention will be described with reference to FIG.

In this embodiment, the notched portions K are respectively provided in the flange member 20 of the side member 6 of the upper floor 1 and the flange portion 21 of the side frame 13 of the lower floor 11 in the above embodiment. is there. The missing portion K on the upper floor 1 side is the flange portion 2 on the lower floor 11 side.
1 at this time, and at this time, the cutout K on the lower floor 11 side can also receive the cutout K on the upper floor 1 side.

A stopper 22 is provided at the front end of the foremost flange member 20 of the upper floor 1.

Therefore, according to this embodiment, the lower floor 11 is set so that the flange 21 on the lower floor 11 is located below the notch K on the upper floor 1 and the arrow C in FIG. (Unlocked position), and by moving the lower floor 11 forward as shown by the arrow D in FIG. 5, each flange portion 21 of the lower floor 11 is connected to each flange member 20 of the upper floor 1. (Lock position), the lower floor 11 is supported by the upper floor 1.

In this state, bolts (not shown) are inserted into the side frames 13 of the lower floor 11 and tightened to the weld nuts 25 of the upper floor 7 in the same manner as in the previous embodiment.
The upper floor 1 and the lower floor 11 are fixed.

Therefore, according to this embodiment, when the lower floor 11 is temporarily fixed to the upper floor 1, it is advantageous in that the sliding amount of the lower floor 11 can be reduced as compared with the first embodiment.

Next, a third embodiment will be described with reference to FIGS. In this embodiment, the dimension in the vehicle width direction of each flange member 20 of the upper floor 1 in the second embodiment is increased toward the front side to be tapered, and the clearance C between the front end side and the inner wall of the flange portion 21 of the lower floor 11 is increased. It is set to 0. According to this embodiment, the lower floor 11 at the position shown in FIG. 7 is moved forward, and when the movement reaches the completion state shown in FIG. 9 through the intermediate stairs shown in FIG. Is prevented from moving. Therefore, in this embodiment, for example, at the time of frontal collision of the vehicle, the lower floor 11 is given a force to move forward, but this force may be shared by the load at each joint between the flange member 20 and the flange portion 21. This is advantageous as compared with the previous embodiment in which the entire load is concentrated on the stopper 22.

Next, a fourth embodiment will be described with reference to FIGS. In this embodiment, each side member 6 of the upper floor 1 and each side frame 13 of the lower floor 11 are disposed so as to open outward toward the front of the vehicle body. Also in this embodiment, the outer wall of the side member 6 of the upper floor 1 is provided with a flange member 2 along the front and rear direction toward the outside.
0, a flange portion 21 is formed on the outer wall of the side frame 13 of the lower floor 11 toward the inside in the front-rear direction, and the flange portion 21 of the lower floor 11 does not interfere with the flange member 20 of the upper floor 1. Then, when the lower floor 11 is raised and then the lower floor 11 is slid forward, the flange member 20 and the flange portion 21 are locked, and the lower floor 11 is supported by the upper floor 1.

In connection with the fourth embodiment, FIG.
The fifth embodiment is shown in FIG.
Each of the side members 6 and the side frames 13 of the lower floor 11 are disposed so as to be closed inward toward the front of the vehicle body. In this embodiment, the inner wall of the side member 6 of the upper floor 1 has a flange member 20 extending inward and longitudinally, and the inner wall of the side frame 13 of the lower floor 11 has a flange portion extending outward and longitudinally. 21
When the lower floor 11 is raised at a position where the flange portion 21 of the lower floor 11 does not interfere with the flange member 20 of the upper floor 1 and then the lower floor 11 is slid forward, the flange member 20 and the flange portion 21 are And the lower floor 11 is supported on the upper floor 1.

In the fourth and fifth embodiments, the flange member 20 and the flange portion 21 are provided at a longer distance in the front-rear direction of the side member 6 and the side frame 13 than in the second embodiment. The lower floor 11 can be reliably supported, and since the sliding distance of the lower floor 11 does not increase as in the first embodiment, the lower floor 11 can be easily mounted.

Also, the lower floor 1
This is advantageous in that it is not necessary to provide the stopper 22 that regulates the first slide position.

The present invention is not limited to the above embodiment. For example, instead of providing a stopper 22 for preventing the lower floor 11 from moving forward on the upper floor 1 side, the stopper 22 is replaced with a side frame of the lower floor 11. 13 may be provided at the rear end.

[0035]

As described above, according to the first aspect of the present invention, the lower floor on which the battery is mounted can be engaged with the upper floor when the battery is mounted. Therefore, the battery mounting operation can be easily performed.

According to the second aspect of the present invention,
When mounting the battery, the locking portion of the lower floor on which the battery is mounted can be engaged with the locking member of the upper floor, so that the subsequent fixing work of the upper floor and the lower floor is easy. Can be done.

According to the third aspect of the present invention,
By raising the lower floor to the unlock position set in the locking member and the locking portion, and then sliding the lower floor to move to the locking position in which the locking member and the locking portion are engaged. The upper floor can support the lower floor with a simple operation.

[Brief description of the drawings]

FIG. 1 is a sectional view of a first embodiment of the present invention, taken along line AA of FIG. 2;

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a side view of the vehicle body.

FIG. 4 is a sectional view of another embodiment of the flange member and the flange portion.

FIG. 5 is an enlarged perspective view of a main part of the second embodiment.

FIG. 6 is a sectional view of a third embodiment.

FIG. 7 is a sectional view showing a movement state along the line EE in FIG. 6;

FIG. 8 is a cross-sectional view of the movement state along the line EE in FIG. 6;

FIG. 9 is a cross-sectional view of the movement state along the line EE in FIG. 6;

FIG. 10 is an explanatory plan view of a fourth embodiment.

FIG. 11 is a sectional view taken along the line FF of FIG. 10;

FIG. 12 is a sectional view at an assembling position along the line FF of FIG. 10;

FIG. 13 is an explanatory plan view of the fifth embodiment.

FIG. 14 is a sectional view taken along line GG of FIG. 13;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Upper floor 11 ... Lower floor 13 ... Side frame (frame) 14 ... Front frame (frame) 15 ... Rear frame (frame) 18 ... Battery 19 ... Mounting part 20 ... Flange member (locking member) 21 ... Flange part (Locking part)

Claims (3)

(57) [Claims] An electric vehicle floor structure having a lower floor divided from the upper floor below the upper floor, wherein a battery mounting portion is formed on the lower floor, and the battery mounting portion is formed around the mounting portion. Is provided with a frame.
The locking section is formed on the upper floor, while the locking section is formed on the upper floor.
And a locking member for supporting the portion.
By the engagement between the parts, an electric vehicle, characterized in that the lower floor to the upper floor is supported detachably furo
A structure. 2. A floor structure of an electric vehicle having a lower floor divided from the upper floor below the upper floor, wherein the lower floor is separated from a battery mounting portion by members arranged in a grid. A frame is provided around the mounting portion, and a locking portion is formed on both sides of the frame, and a locking member for supporting the locking portion is provided on both sides of the upper floor, Between the locking member and the locking portion .
A floor structure for an electric vehicle, wherein a lower floor is detachably supported on an upper floor by engagement . 3. A floor structure of an electric vehicle having a lower floor divided from the upper floor below the upper floor, wherein a battery mounting portion is separated from the lower floor by members arranged in a grid. A frame is provided around the mounting portion, and a locking portion is formed on both sides of the frame, and a locking member for supporting the locking portion is provided on both sides of the upper floor, The locking member and the locking portion include an unlocked position where the engagement between the locking member and the locking portion can be released and the lower floor can be lowered, and the upper floor and the lower floor can be moved from the unlocked position. DOO relatively vehicle body longitudinal direction by sliding floor structure for an electric vehicle, characterized in that the locking position to engage the locking member and the locking portion are set.