Battery arrangement structure and vehicle

Abstract

To provide a vehicle that can form flat footing of an occupant.SOLUTION: A vehicle V includes: a seat S on which an occupant is seated; rails 20 which allow sliding of the seat; a first floor FS1 on which a plurality of protrusion portions 10 protruding upward are formed; and a second floor FS2 provided above the first floor FS1. The rail 20 is disposed below the second floor FL2 and across the plurality of protrusion portions 10 of the first floor FL1. The seat S is disposed above the second floor FL2 and is slidably connected to the rail 20.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a vehicle, and particularly to a vehicle having a convex portion on a vehicle body floor.

Background Art

[0002] Conventionally, as described in Patent Document 1, a plurality of convex portions (referred to as floor members in Patent Document 1) extending in the left - right direction and arranged in the front - rear direction are provided on the vehicle body floor of an electric vehicle or the like, and a vehicle in which slide rails are arranged so as to straddle the convex portions is known.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, since the convex portions are provided on the floor, there are cases where the feet of the passengers sitting on the vehicle seat hit the convex portions, or it becomes difficult to clean under the vehicle seat. In recent years, with the electrification of the power source, a battery is mounted under the floor, and it is required to give the vehicle or the vehicle seat more functions than before.

[0005] The present invention has been made in view of the above problems, and an object thereof is to provide a vehicle capable of making the foot space of a passenger flat. Another object is to provide a vehicle capable of providing various functions to the floor.

Means for Solving the Problems

[0006] According to the vehicle according to the present invention, the above problems are solved by providing a seat on which an occupant sits, a rail for sliding the seat, a first floor formed with a plurality of convex portions protruding upward, and a second floor provided above the first floor. The rail is disposed across the plurality of convex portions of the first floor below the second floor, the seat is disposed above the second floor, and is slidably connected to the rail. According to the present invention, by providing a second floor above the first floor and disposing the rail below the second floor, the upper surface of the second floor can be made flat, and a vehicle capable of making the foot space of the occupant flat can be provided. In addition, by providing the first floor and the second floor above it, a space is created, and it becomes possible to endow the floor with various functions.

[0007] Further, in the above vehicle, each of the plurality of convex portions may extend in the vehicle width direction and be arranged side by side in the vehicle front-rear direction. Thereby, the rigidity of the vehicle can be improved.

[0008] Further, in the above vehicle, a plurality of the seats may be provided, and two or more of the seats may be arranged in the vehicle front-rear direction on the rail. By sharing the rail by a plurality of seats, for example, the moving range of the seat can be expanded and the convenience can be improved.

[0009] Further, in the above vehicle, the rail may be disposed across three or more convex portions. Thereby, the rail can be supported by three or more convex portions, and the supporting force for supporting the rail can be improved.

[0010] Further, in the above vehicle, it is preferable to include a rail support member that is disposed between the plurality of convex portions and supports the rail from below. By providing a rail support member between the convex portions, the supporting force for supporting the rail can be improved.

[0011] Further, in the above vehicle, at least one of the plurality of convex portions is formed to be lower in height than the other convex portions, and a raising member for equalizing the height with the other convex portions may be provided on the convex portion having a lower height than the other convex portions. By providing a raising member on the convex portion having a lower height than the other convex portions, the height is unified and the installation of the rail becomes easy.

[0012] Further, in the above vehicle, a concave portion may be formed on the upper surface of the plurality of convex portions, and the rail may be disposed in the concave portion. By providing a concave portion in the convex portion and disposing the rail in the concave portion, the height of the rail can be lowered, and thereby the height of the second floor can also be lowered.

[0013] Further, in the above vehicle, one end of the rail may be in contact with a side surface of a vehicle body structure portion erected from the first floor. By one end of the rail being in contact with the side surface of the vehicle body structure portion, the resistance to impact in the front-rear direction can be improved.

[0014] Further, in the above vehicle, the rail may be composed of a lower rail fixed to the first floor and an upper rail that slides on the lower rail, and a seat attachment / detachment mechanism for detachably connecting the seat may be provided on the upper rail. By making the seat detachable, the seat can be replaced, and seats of various sizes can be applied.

[0015] Further, in the above vehicle, a plurality of the rails may be provided, and a floor support member for supporting the second floor may be disposed between the plurality of rails on the first floor. By providing a floor support member between the rails, it becomes possible to prevent the second floor from deflecting.

Advantages of the Invention

[0016] According to the present invention, by providing a second floor above the first floor and arranging rails below the second floor, the upper surface of the second floor can be made flat, and a vehicle capable of making the foot area of the passenger flat can be provided. Also, by providing a second floor above the first floor, space is created, and it becomes possible to endow the floor with various functions. According to the present invention, each of the plurality of convex portions extends in the vehicle width direction and is arranged side by side in the vehicle longitudinal direction, whereby the rigidity of the vehicle can be improved. According to the present invention, by sharing rails among a plurality of seats, for example, the moving range of the seats can be expanded and convenience can be improved. According to the present invention, since the rail is arranged across three or more convex portions, the rail can be supported by the three or more convex portions, and the supporting force for supporting the rail can be improved. According to the present invention, by providing a rail support member between the convex portions, the supporting force for supporting the rail can be improved. According to the present invention, by providing a raising member on a convex portion having a height lower than that of other convex portions, the height is unified and the installation of the rail becomes easy. According to the present invention, by providing a concave portion in the convex portion and arranging the rail in the concave portion, the height of the rail is lowered, and thereby the height of the second floor can also be lowered. According to the present invention, by making one end of the rail abut against the side surface of the vehicle body structure portion, the rigidity of the vehicle can be improved. According to the present invention, by making the seat detachable, the seat can be replaced, and seats of various sizes can be applied. According to the present invention, by providing a floor support member between the rails, it becomes possible to prevent the second floor from deflecting.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6A

Figure 6B

Figure 7

Figure 8A

Figure 8B

Figure 8C

Figure 9A

Figure 9B

Figure 10A

Figure 10B

Figure 11A

Figure 11B

Figure 12A

Figure 12B

Figure 13

Figure 14

Figure 15

Figure 16A

Figure 16B

Figure 17A

Figure 17B

Figure 18

Figure 19

Figure 20

Figure 21A

Figure 21B

Figure 22A

Figure 22B

Figure 23

Figure 24

Figure 25A

Figure 25B

Figure 26A

Figure 26B

Figure 27A

Figure 27B

Figure 28

Figure 29A

Figure 29B

Figure 30

Figure 31

Figure 32

Figure 33

Figure 34

Figure 35

Figure 36A

Figure 36B

Figure 37A

Figure 37B

Figure 38

Figure 39A

Figure 39B

Figure 40A

Figure 40B

Figure 41

Figure 42

Figure 43

Figure 44

Figure 45A

Figure 45B

Figure 45C

Figure 46A

Figure 46B

Figure 46C

Figure 47

Figure 48

Figure 49

Figure 50A

Figure 50B

Figure 51A

Figure 51B

Figure 52A

Figure 52B

Figure 53A

Figure 53B

Figure 54

Embodiments for Carrying Out the Invention

[0018] <First Embodiment> Hereinafter, with reference to FIGS. 1 to 22B, a vehicle V according to a first embodiment of the present invention (hereinafter, this embodiment) will be described. Note that the embodiments described below are merely examples for facilitating the understanding of the present invention and do not limit the present invention. That is, the shape, dimensions, arrangement, etc. of the members described below can be changed and improved without departing from the gist of the present invention, and the equivalents thereof are of course included in the present invention.

[0019] Hereinafter, as an example of a vehicle, a vehicle V of a four-wheel electric vehicle (EV vehicle) having four wheels shown in FIG. 1 will be cited, and a configuration example thereof will be described. However, the applicable vehicle V is not limited to a four-wheel electric vehicle, and may be applied to an engine vehicle, a hybrid vehicle equipped with both a motor and an engine for running, a vehicle equipped with a battery and a fuel cell as a power source, and the like. In the following description, the "front-rear direction" refers to the front-rear direction of the vehicle and the vehicle seat, and coincides with the traveling direction when the vehicle is running. The "left-right direction" or "vehicle width direction" refers to the lateral width direction of the vehicle, and coincides with the left-right direction as viewed from an occupant seated on the vehicle seat. The "up-down direction" refers to the up-down direction of the vehicle, and coincides with the vertical direction when the vehicle is running on a horizontal plane. Also, when simply referred to as "outer side", it refers to the side closer to the outside in the direction from the center of the vehicle to the outside, and when referred to as "inner side", it means the side closer to the center in the direction from the outside of the vehicle to the center. Also, when referred to as "outside of the seat", it refers to the side closer to the outside in the direction from the center of the vehicle seat to the outside, and when referred to as "inside of the seat", it means the side closer to the center in the direction from the outside of the vehicle seat to the center. Note that, regarding the shape, position, posture, etc. of each part of the vehicle seat provided in the vehicle described below, unless otherwise specified, the case where the vehicle seat is in the seated state will be assumed for the description.

[0020] <Basic Configuration of Vehicle V> As shown in FIG. 1, the vehicle V to which the present invention is applied has a vehicle structure including a vehicle body 3 that defines a passenger compartment 2 and four wheels (not shown), namely, a pair of left and right front wheels and a pair of left and right rear wheels. The vehicle body 3 has a pair of left and right side members (not shown) extending in the front-rear direction of the vehicle V and a vehicle body floor FL. On the vehicle body floor FL, a front seat FS that serves as a driver's seat or a passenger seat and a rear seat RS located on the rear side are arranged in order from the front to the rear of the vehicle V. A middle seat may be provided between the front seat FS and the rear seat RS. The front seat FS and the rear seat RS are provided with slide mechanisms and can move in the front-rear direction by long rails 20 provided on the vehicle body floor FL. The vehicle seat S may be provided with a rotating device 16. By using the rotating device 16, the vehicle seat S can be rotated about an axis in the vertical direction to change the direction in which the occupant sits.

[0021] In addition, inside the vehicle body floor FL, a battery BT for supplying power to the electric motor of the vehicle V and a vehicle body bottom FL3 (see FIG. 3) that supports the battery BT from below are provided.

[0022] In a conventional vehicle, a convex portion extending in the left-right direction (vehicle width direction) is provided on the floor, and the leg portion or the slide mechanism of the vehicle seat is attached on the convex portion. Therefore, there are cases where the occupant's foot hits or it becomes difficult to clean under the vehicle seat.

[0023] In the vehicle V of the present embodiment, as shown in FIG. 2, the vehicle body floor FL is configured to include a first floor FL1 formed with a plurality of convex portions 10 protruding upward and a second floor FL2 provided above the first floor FL1. Each of the plurality of convex portions 10 extends in the vehicle width direction. The plurality of convex portions 10 are arranged at intervals in the front-rear direction of the vehicle V and are parallel to each other. The vehicle body floor FL, which is composed of the vehicle body bottom FL3, the first floor FL1, and the second floor FL2, is formed of steel material unless otherwise specified. Further, the convex portion 10 of the first floor FL1 is formed, for example, by press-forming a steel plate.

[0024] The vehicle V is provided with a long rail 20 for sliding the front seat FS and the rear seat RS in the front-rear direction. The long rail 20 is disposed below the second floor FL2 and passes over a plurality of convex portions 10 of the first floor FL1. Also, the front seat FS and the rear seat RS are disposed above the second floor FL2 and are slidably connected to the long rail 20 through slits 18 formed in the second floor FL2. More specifically, the long rail 20 is composed of a lower rail 21 fixed to the vehicle body and an upper rail 22 connected to the vehicle seat S and sliding on the lower rail 21.

[0025] The lower rail 21 of the long rail 20 is arranged long in the front-rear direction, and the upper rails 22 connected to the front seat FS and the rear seat RS respectively are individually slidable. By sharing the lower rail 21 by the front seat FS and the rear seat RS, the moving range can be expanded and the convenience can be improved.

[0026] By providing the second floor FL2 above the first floor FL1 and arranging the long rail 20 below the second floor FL2, the upper surface of the second floor FL2 can be made flat. Thereby, the feet of the passengers sitting on the front seat FS and the rear seat RS can be made flat. Also, by placing the long rail 20 on the convex portion 10 of the first floor FL1, the rigidity of the vehicle body floor FL can be improved.

[0027] In the examples shown in FIGS. 2 and 3, the long rail 20 is disposed across two convex portions 10. However, this is merely an example. When three or more convex portions 10 are provided, the long rail 20 may be disposed across three or more convex portions 10.

[0028] <Rail support member 11> Further, as shown in FIG. 4, a rail support member 11 that supports the long rail 20 (more specifically, the lower rail 21) from below may be provided between a plurality of convex portions 10 formed on the first floor FL1. Also, the rail support member 11 shown in FIG. 4 extends in the vehicle width direction similarly to the convex portion 10, and supports a plurality of long rails 20 by the rail support member 11. Further, a plurality of rail support members 11 arranged side by side in the vehicle width direction may be disposed below each of the long rails 20 to support the long rails 20 individually.

[0029] <Lifting member 12> Also, when the long rail 20 is supported by a plurality of convex portions 10 or rail support members 11, it is necessary to unify the heights of the convex portions 10 and rail support members 11 that support it. However, as shown in FIG. 6A, a convex portion 10A that does not match the height of other convex portions 10 or rail support members 11 may appear. In such a case, as shown in FIG. 6A, a lifting member 12 that matches the height of other convex portions 10 may be provided on the convex portion 10A that is lower in height than other convex portions 10. By providing the lifting member 12 on the convex portion 10A that is lower in height than other convex portions 10, the height can be unified and the long rail 20 can be supported without bending it, facilitating the installation of the long rail 20.

[0030] Note that the lifting member 12 may be provided so as to support the long rail 20 individually, like the lifting member 12A shown in FIG. 6B. Also, it may be provided so as to support a plurality of long rails 20, like the lifting member 12B.

[0031] Further, when the convex portion 10 is not formed on the first floor FL1, as shown in FIG. 7, a plurality of rail support members 11 may be arranged on the first floor FL1, and the long rail 20 may be arranged so as to pass over the plurality of rail support members 11.

[0032] <Formation of the recess 13> Also, as shown in FIGS. 8A and 8B, a recess 13 may be formed on the upper surface of the convex portion 10 or the rail support member 11 that supports the long rail 20. By forming the recess 13 and arranging the long rail 20 in the recess 13, the height of the long rail 20 (the position in the vertical direction in the vehicle V) can be lowered, and thereby the height of the second floor FL2 can be lowered. Further, when the height is higher than that of other convex portions 10 or rail support members 11, the heights can be made the same by forming the recess 13, and the long rail 20 can be supported without being bent.

[0033] Note that, as shown in FIG. 8A, the recess 13 may be formed so that the long rail 20 is individually accommodated. Also, as in the recess 13A shown in FIG. 8B, it may be formed so that a plurality of long rails 20 are collectively accommodated. Also, as shown in FIG. 8C, when the raising member 12 is provided on the convex portion 10, a recess 14 may be formed in the raising member 12, and the long rail 20 may be accommodated in the recess 14. Similar to the recess 13 formed in the convex portion 10, the long rail 20 may be individually accommodated, or a plurality of long rails 20 may be accommodated as in the recess 14A.

[0034] Also, as shown in FIG. 9A, the rail support member 11 that supports the long rail 20 may be directly supported by the battery BT without providing the first floor FL1. Also, as shown in FIG. 9B, a recess 17 may be formed in the battery BT, and the rail support member 11 may be housed in the recess 17 formed in the battery BT.

[0035] As shown in FIGS. 10A and 10B, the second floor FL2 may be formed only in the area where the long rail 20 is provided. That is, it may be configured such that the length of the long rail 20 in the front-rear direction matches the length of the second floor FL2 in the front-rear direction.

[0036] Also, as shown in FIGS. 11A and 11B, the tip of the long rail 20 may be arranged to abut against a side surface of a vehicle body structure portion 15 standing upright from the first floor FL1, for example, a front wall portion constituting an instrument panel, a dashboard, or the like. By arranging the long rail 20 in this way, the resistance to impact in the front-rear direction can be improved. In this case, the rear end of the long rail 20 may be fixed so as to pierce the side surface of the convex portion 10 or the rail support member 11. Also, by bringing the long rail 20 into contact with the vehicle body structure portion 15, the moving range of the front seat FS increases. For example, by rotating the front seat FS by the rotating device 16, the front seat FS can be slid to the front of the passenger compartment 2 and used.

[0037] <Inclination of the floor surface> Also, depending on the vehicle type, there may be a case where a floor surface that is not parallel to the ground but is inclined slightly downward toward the front is required. In such a case, as shown in FIG. 12A, an inclined surface may be provided by changing the height of the convex portion 10 or the rail support member 11 of the first floor FL1 and inclining the long rail 20 and the second floor FL2. Also, as shown in FIG. 12B, an inclined surface may be provided by arranging a raised member 12 on the upper surface of the convex portion 10 or the rail support member 11 to incline the long rail 20 and the second floor FL2.

[0038] <Rail-mounted airbag device> When the long rail 20 is provided and the moving range of the vehicle seat S is expanded, the airbag provided on the dashboard or the steering wheel may not reach sufficiently. Therefore, as shown in FIG. 13, instead of an airbag built into the dashboard or the steering wheel, an airbag device 23 may be provided at the tip of the long rail 20 (more specifically, the lower rail 21), and the airbag 24 may be deployed when an impact occurs. Since the direction in which the airbag 24 deploys (the direction of the arrow in FIG. 13) is not toward the occupant, the occupant can be protected more safely than by an airbag built into the dashboard or the steering wheel.

[0039] Further, as shown in FIG. 14, the airbag device 23 may be attached to the tip of an upper rail 22 that slides along the lower rail 21 of the long rail 20. The position of the airbag device 23 is determined according to the position of the vehicle seat S, and the position where the airbag 24 deploys becomes stable. Also, as shown in FIG. 14, an airbag device 23A may be provided between the front seat FS and the rear seat RS. The airbag 24A can also protect the occupants sitting on the rear seat RS.

[0040] The long rail 20 of the vehicle V is provided with upper rails 22 for the number of shared seats on a single long lower rail 21. Since the lower rail 21 is disposed below the second floor FL2, it is convenient that it can be easily removed between the vehicle seat S and the upper rail 22.

[0041] As shown in FIG. 15, the vehicle seat S of the present embodiment is provided with a seat attachment / detachment mechanism 25 at the bottom of the vehicle seat S that is detachably connected to the long rail 20. The seat attachment / detachment mechanism 25 includes a lock member 26 that serves as a leg under the seat cushion of the vehicle seat S and a striker 27 provided on the upper rail. When the lock member 26 engages with the striker 27, the vehicle seat S is attached to the long rail 20. Also, by releasing the lock of the lock member 26, the vehicle seat S can be easily removed from the long rail 20. Since the striker 27 is below the second floor FL2, the smoothness of the second floor FL2 is ensured.

[0042] Further, as shown in FIG. 16A, by widening the interval W0 between the front and rear strikers 27 provided on the upper rail 22 to the interval W1, it is possible to accommodate the attachment of vehicle seats S of different sizes. Four strikers 27 with different intervals may be provided on the upper rail 22 in advance. Also, as shown in FIG. 16B, if a plurality of strikers 27 are arranged at equal intervals, the attachment position on the upper rail 22 can be changed, and position adjustment beyond the slide amount can be performed.

[0043] In the vehicle V of the present embodiment, since the long rail 20 is disposed below the second floor, it is difficult for the occupant to directly operate the locking device that restricts the movement of the upper rail 22. In the present embodiment, as shown in FIGS. 19A and 19B, the long rail 20 is configured such that the movement of the upper rail 22 is restricted by the protrusion 31 provided at the end of the lock spring 28 fitting into the lock hole 32 provided in the upper rail 22. By pressing down this protrusion 31, the lock is released and the upper rail 22 can slide.

[0044] In the present embodiment, a lever 30 for pressing down the protrusion 31 of the lock spring 28 is provided on the upper rail 22, and the lock is configured to be released by operating the lever 30 with the cable 29. More specifically, when the occupant pulls up the cable connected to the end of the lever, the lever rotates and the protrusion of the lock spring can be pressed down. By this lever operation, the lock can be released from above the second floor FL2, and thereby the vehicle seat S can be moved.

[0045] Also, in the vehicle V of the present embodiment, four long rails 20 are arranged in the vehicle interior, and the vehicle seat S can move in the front-rear direction. By arranging these four long rails 20 at equal intervals W3 in the left - right direction as shown in Fig. 18, the vehicle seat S can be attached using the two long rails 20 arranged in the middle, or the armrest 35 can be arranged between adjacent vehicle seats S. It is also possible to arrange it on the left and right of the vehicle seat S arranged in the middle, like an armrest.

[0046] Fig. 19 is a side view of the armrest 35. As shown in Fig. 19, wheels 36 may be provided in front of the armrest 35, and a locking device 37 for fixing the position may be provided at the rear. As shown in Fig. 15, when the vehicle seat S is easy to remove, the position of the vehicle seat S can be freely arranged. Also, in addition to the armrest 35, options such as ottomans and tables can be installed according to preferences.

[0047] In addition, in the vehicle body floor FL of the present embodiment, since the first floor FL1 and the second floor FL2 are provided on it, a space is formed between the first floor FL1 and the second floor FL2. Therefore, as shown in Fig. 20, a recess may be formed in the second floor FL2, and a storage portion 38 using the recess may be provided. The storage portion 38 can be used, for example, as a refrigerator or a shoe cabinet. Also, a floor reinforcing member 39 for reinforcing the second floor FL2 may be provided around the storage portion 38. This can strengthen the vehicle body floor FL and also improve the strength of the storage portion itself.

[0048] Also, the storage portion 38 provided in the second floor FL2 may be used for storing the vehicle seat SA that can be dived down, like the storage portion 38A shown in Figs. 21A and 21B. Also, when the storage portion 38 is used as a shoe cabinet, a sterilization device, for example, an ultraviolet irradiation device, may be provided in the storage portion 38.

[0049] By providing the storage portion 38 below the second floor FL2, while making the upper surface of the second floor FL2 flat, the empty space can be effectively utilized. In addition, since the storage section 38 is disposed on the battery BT, transmission from the battery BT into the passenger compartment can be suppressed.

[0050] <Floor support member 40> Also, if there is a space between the first floor FL1 and the second floor FL2, a portion of the second floor FL2 that is not supported by the convex portion 10 of the first floor FL1 may bend in the vertical direction. To prevent such bending of the second floor FL2, as shown in FIGS. 22A and 22B, a floor support member 40 for supporting the second floor FL2 may be provided between the first floor FL1 and the second floor FL2. The floor support member 40 may preferably be a honeycomb plate having a honeycomb structure as shown in FIG. 22A. Further, the honeycomb plate is preferably made of aluminum or carbon.

[0051] By providing the floor support member 40 made of a honeycomb plate, weight reduction can be achieved while maintaining the strength in the vertical direction. Therefore, even when a load is applied from the vertical direction (arrow A in FIG. 22B), bending of the second floor FL2 can be prevented, and a decrease in smoothness can be suppressed. Also, even when an impact is applied from the side as in arrow B shown in FIG. 22B, it can be cushioned by the honeycomb structure of the floor support member 40.

[0052] <<Second Embodiment>> A second embodiment of the present invention will be described with reference to FIGS. 23 and 24. The second embodiment relates to a vehicle in which a battery is disposed under the floor. Conventionally, convex portions (floor members) extending in the left - right direction have been formed on the frame of the vehicle floor to reinforce the vehicle body frame, and vehicle seats have been fixed to the convex portions using foot brackets, which are separate members from the convex portions.

[0053] In the vehicle V2 of the present embodiment, the first floor 201 is disposed above the battery BT2, and a convex portion 203 for reinforcing the first floor 201 is formed. Then, as shown in FIG. 23, the function of the foot bracket for attaching the vehicle seat S2 is formed as a foot attachment portion 204 on the convex portion 203 of the first floor 201, and the foot bracket and the convex portion are integrated. By integrating them, the reinforcement performance can be improved, and the weight of the vehicle seat S2 can be reduced by omitting the foot bracket.

[0054] Conventionally, the foot bracket was disposed on the upper surface of the convex portion to fix the seat. However, as in the case of the vehicle body floor of the vehicle V2A shown in FIG. 24, the foot bracket 220 may be attached so as to sandwich the convex portion 203 of the first floor 201. By attaching the foot bracket 220 so as to sandwich the convex portion 203 in the front-rear direction and fixing the vehicle seat S2, for example, the torsional rigidity can be improved, and the mounting rigidity of the entire vehicle seat S2 can be further improved.

[0055] <<Third Embodiment>> Next, a third embodiment of the present invention will be described with reference to FIGS. 25A to 26B. The third embodiment relates to a vehicle in which a battery is disposed under the floor. FIG. 25A is a cross-sectional view schematically showing a vehicle V3 in which a lid 321 for battery replacement is disposed between long rails 320 provided on a floor 301, and FIG. 25B is a top view thereof. As shown in FIGS. 25A and 25B, a door D3 is disposed on a side portion of the vehicle V3, and the floor 301 is provided below the door D3. A recess 302 extending in the front-rear direction is formed in the floor 301, and a plurality of replaceable battery units BT3 are mounted in the recess 302. The battery unit BT3 is formed to be elongated in the front-rear direction and is housed in a space between long rails 320 for moving the front seat FS3 and the rear seat RS3. In each of the recesses 302, two battery units BT3 are arranged side by side in the front-rear direction.

[0056] On each of the battery units BT3, a lid 321 that also functions as a floor material is provided, and the battery unit BT3 can be taken out by opening the lid 321. By arranging the battery unit BT3 between the long rails 320, the battery unit BT3 can be replaced without removing the long rails 320.

[0057] Also, by making the length of the battery unit BT3 in the front-rear direction approximately half of that of the long rail 320, as shown in Fig. 26A, by moving the front seat FS3 and the rear seat RS3 forward of the vehicle, the lid 321 arranged on the rear side of the vehicle V3 can be opened to replace the battery unit BT3 arranged on the rear side. Also, as shown in Fig. 26B, by moving the front seat FS3 and the rear seat RS3 backward of the vehicle, the lid 321 arranged on the front side of the vehicle V3 can be opened to replace the battery unit BT3 arranged on the front side.

[0058] In this embodiment, the battery unit BT3 is arranged with two battery units BT3 divided front and rear side by side, but this is just an example and it may be divided into three or more and arranged.

[0059] <<Fourth Embodiment>> Next, a fourth embodiment of the present invention will be described with reference to Figs. 27A to 29B. The fourth embodiment relates to a vehicle in which the battery is arranged under the floor. In an electric vehicle, in order to make the floor flat, it has been an issue to make the unevenness of the rails or the foot brackets as small as possible. In the vehicle V4 of this embodiment, while solving this issue and securing the distance (head clearance) from the head of the seated person sitting on the vehicle seat to the roof, as shown in Fig. 27A, the long rail 420 is embedded and integrated with the battery BT4 under the floor (second floor 402). Since a flat surface is formed on the second floor 402, the interior space of the vehicle can be made to look spacious, and the head clearance can be secured.

[0060] In order to form a flat surface on the second floor 402, as shown in FIG. 27B, a rail mounting bracket 410 in which a long rail 420 is embedded may be provided. Conventionally, when the platform architecture changed, it was necessary to change the configuration of components such as the frame for each vehicle type. By using the rail mounting bracket 410 in which the long rail 420 is embedded, even when the position of the mounting point 411 for mounting the rail mounting bracket 410 changes for each vehicle type, the long rail 420 can be mounted only by changing the position of the hole of the mounting point 411. That is, there is no need to change the configuration of the frame above the long rail 420, and it is possible to cope with a minimum change.

[0061] Also, by changing the shape of the rail mounting bracket 410, it is possible to create the unevenness required in the vehicle interior space. The necessity of changing the platform according to the vehicle type is eliminated. For example, when an opening 412 is required for an air intake or the like, a hole may be formed in the rail mounting bracket 410. Note that, in view of the synchronization of the long rails 420, it is better in terms of quality to drill holes (mounting points 411) for fastening to the vehicle body frame after joining the rail mounting brackets. Also, there is a vehicle body frame under the rail mounting bracket 410, but it is difficult to eliminate the unevenness of the floor only with the vehicle body frame. By providing the rail mounting bracket 410, it becomes possible to make the floor flat. If the floor becomes flat, the floor carpet can be made flat, and the vehicle owner can dress up using an off-the-shelf floor carpet.

[0062] Also, depending on the floor shape of the vehicle, there may be cases where slopes are provided on the left and right of the left and right floors toward doors such as sliding doors in consideration of the boarding and alighting performance. As shown in FIG. 29A, by providing an inclined portion 413 on the side portion of the rail mounting bracket 410, the inclined portion 413 can be changed according to the vehicle, and it can be set without changing the shape of the floor. This inclined portion is not limited to a slope that slopes in a fixed direction, and its shape may be changed according to the ride comfort and usability, like the inclined portion 413A of the rail mounting bracket 410A shown in Fig. 29B. Since it is separated from the vehicle body frame, it is easy to change the shape.

[0063] <<Fifth Embodiment>> Next, a fifth embodiment of the present invention will be described with reference to Figs. 30 and 31. The fifth embodiment relates to a vehicle seat with a battery disposed below. In an electric vehicle, since the battery is disposed under the floor, heat from the battery may be transmitted to the vehicle seat due to heat dissipation from the battery. Particularly in the case of the rear seat, since the distance from the floor is short, heat from the battery is easily transmitted.

[0064] In the seat of this embodiment, as shown in Fig. 30, when arranging the frame of the rear seat RS5 on the battery BT5, a base 520 formed of EPP (expanded polypropylene) is used. When arranging the EPP base 520 on the battery BT5, a fixing foot bracket 510 is arranged. This foot bracket 510 and the EPP base 520 may be integrally formed. By using the EPP base 520, the height can be adjusted for each vehicle type, improving the design of the exterior and interior. Also, heat conduction from the battery BT5 to the rear seat RS5 due to heat dissipation can be effectively suppressed by the EPP base 520.

[0065] Also, in a conventional vehicle, in order to prevent contact with high-voltage members, a reinforcing member for preventing buckling may be provided on the floor to which the rear seat is attached. This buckling prevention reinforcing member 511 may be insert-molded into the EPP base 520A as shown in Fig. 31. When attaching the EPP base 520A to the second floor 502, the reinforcing member 511 is fixed to the second floor 502. By insert molding the reinforcing member 511 into the base 520A, the operation of attaching the reinforcing member 511 to the vehicle seat RS5A can be omitted, and the vehicle assembly can be labor-saving. In addition, the base 520A made of EPP is also applicable to the front seat and the middle seat. In the case of the front seat or the middle seat, it is advisable to attach a reinforcing member 511 having a U-shaped cross section under the lower rail.

[0066] <<Sixth Embodiment>> Next, the sixth embodiment of the present invention will be described with reference to FIGS. 32 to 33B. The sixth embodiment relates to an electric vehicle equipped with a battery. In recent years, due to the popularization of electric vehicles, batteries have been mounted under the floor. The battery is usually covered with a hard cover and is firmly protected and fixed. Therefore, the vehicle seat S6 may be fixed more firmly by extending the leg portion of the vehicle seat provided on the floor, penetrating the floor (vehicle body frame, second floor), and fixing it to the case of the battery bT6. In this case, the vehicle body frame (second frame 602), the battery BT, and the leg portion of the vehicle seat S6 may be clamped together.

[0067] In addition, it is expected that the popularization of all-solid-state batteries will reduce the number of batteries provided under the seat cushion in electric vehicles. In this case, as shown in FIG. 32, a space can be formed below the vehicle seat S6 (more specifically, the seat cushion). A lid may be provided in this space to be used as a storage portion 610 for other purposes. For example, the storage portion 610 may be used for storing a refrigerator or shoes. Such a storage portion 610 may be provided in the battery BT6 having a recess formed as shown in FIG. 32. In addition, the battery BT6 may be arranged in the front-rear, left-right directions of the storage portion 610. A lateral slide device for sliding the vehicle seat S6 laterally or a rotating device for rotating it may be provided in the storage portion 610. In addition, a lid portion 611 that also serves as a floor seat may be provided in the storage portion 610.

[0068] In addition, in conventional vehicles, the door panel is formed relatively thick, and when it is rotated to change the orientation of the vehicle seat, the vehicle seat and the door panel may interfere with each other. Therefore, in the vehicle V6 of the present embodiment, as shown in FIG. 33, a part of the door panel D6 is configured to be removable as a table TB. When rotating the vehicle seat S6A, by removing the table TB which is a part of the door panel D6, the thickness of the door panel D6 is reduced, thereby increasing the width of the interior space so that the vehicle seat S6A and the door do not interfere with each other when the seat rotates. The removed table TB can be used as a side table as shown on the right side of FIG. 33 after rotating the vehicle seat SA6.

[0069] <<Seventh Embodiment>> Next, with reference to FIGS. 34 and 35, a seventh embodiment of the present invention will be described. The seventh embodiment relates to a vehicle having a battery under the floor.

[0070] In conventional gasoline vehicles, the battery is not arranged under the floor, and the vehicle seat is designed to allow passengers to sit safely and comfortably during movement. On the other hand, in recent years, with the popularization of electric vehicles, a large-capacity battery has become necessary, and the battery has come to be arranged under the floor. However, since the battery may catch fire due to impact, it is necessary to improve the strength and rigidity to protect the battery. In particular, when a flip-up seat is provided, a strong load may be applied to the battery under the floor during boarding and alighting, and it was necessary to protect the battery from the impact when flipping up. In addition, with the popularization of electric vehicles, the ways of using the passenger compartment space have become diversified, and due to the recent health boom, there is a demand for opportunities to exercise during the travel time. Since the usage method of the passenger compartment space is changing, it is also required to support the seated person and protect the battery from vibrations and impacts from people exercising in the passenger compartment, and further improvement in strength and rigidity is demanded.

[0071] In a flip-up type vehicle seat, if the input torque around the rotary hinge is set large, the seat will bounce up vigorously, resulting in a large impact on the floor. In the vehicle V7 of the present embodiment, a damping damper is provided to reduce the impact on the battery BT7 and suppress the speed when bouncing up. Also, when the flipped-up vehicle seat S7 is returned to the seating mode and the vehicle seat S7 is locked by lowering it vigorously, the impact on the second floor 702 also increases. Therefore, a damping damper is provided to suppress the impact load during locking.

[0072] Also, as shown in FIG. 34, a vibration isolator or shock absorber 710 may be provided between the second floor 702 and the battery BT7 so that the impact from the second floor 702 is not directly transmitted to the battery BT7. Thereby, the battery BT7 can be protected from impact.

[0073] Also, as shown in FIG. 35, a reinforcing panel may be provided on the floor surface stepped on by the occupant when the occupant moves. That is, a reinforcing panel for strengthening the floor is installed at a place where movement is assumed. Further, a sensor may be arranged at the reinforced portion and the movement may be enabled only at the portion where the sensor is arranged. Note that the place where the reinforcing panel 711 is provided is not limited to the place where movement is assumed, and it may be arranged at a place where the seat is detached and boarded without sliding backward. By reinforcing the floor used for boarding and alighting, the battery can be protected.

[0074] Also, conventionally, the floor mats arranged on the floor have been required to have functions of flammability, stain resistance, and anti-slip. Therefore, fibers such as rubber or fabric have been used as the material of the floor mat, and they have been formed by being single-layered or laminated. On the other hand, in recent years, with the progress of electrification, improvement in insulation, sound absorption, and vibration damping has been required to prevent electric leakage and suppress the transmission of vehicle body vibration.

[0075] Instead of the reinforcing panel 711 shown in FIG. 35, a floor mat 712 having insulating and sound-absorbing properties may be arranged. The floor mat 712 of the present embodiment is configured to increase the insulation resistance and absorb vibrations by resin-bonding a rubber component. By using such a floor mat 712, it is possible to take measures against electric leakage in an emergency and suppress the transmission of vehicle body vibrations to the occupants.

[0076] <<Eighth Embodiment>> Next, the eighth embodiment of the present invention will be described with reference to FIGS. 36A and 36B. The eighth embodiment relates to a vehicle equipped with a vehicle seat that dives down rearward. A conventional vehicle seat S18 that dives down rearward in a vehicle is formed so as to be storable, for example, in a storage recess 1810 whose bottom is parallel to the floor 1802, as shown in FIG. 36A. However, in an electric vehicle, a battery BT18 is arranged under the floor and is in series with the vehicle seat S18 in the stored state. Therefore, when an impact is applied from the rear as shown by the arrow A in FIG. 36A, the impact is transmitted to the battery BT18 via the vehicle seat S18, and the battery BT18 may be damaged.

[0077] In the vehicle V8 of the present embodiment, as shown in FIG. 36B, a storage recess 810 having an inclined bottom 810a is formed, and the folded vehicle seat S8 is stored therein. By forming the storage recess 810 in this way, even when an impact (arrow A in FIG. 36B) is applied from the rear, the folded vehicle seat 8 moves in the direction of arrow B in FIG. 36B, and the impact from the rear can be escaped obliquely upward. The direct transmission of the impact to the battery BT8 under the floor is suppressed, and the battery BT8 can be protected. In addition, in the storage recess 810 with an inclination provided on the bottom 810a, not only the vehicle seat S8 in the folded state but also when the vehicle seat 8 is in the seatable state, another storage item may be stored in the storage recess 810. Since the bottom 810a is inclined, even when an impact is applied from the rear, the stored item can be moved diagonally upward, and the battery BT8 can be protected from the impact.

[0078] <<Ninth Embodiment>> Next, the ninth embodiment of the present invention will be described with reference to FIGS. 37A and 37B. The ninth embodiment relates to an electric vehicle V9 equipped with a vehicle seat S9 having a flipping-up mechanism. Conventionally, in order to expand the space such as the luggage compartment, there is known a vehicle rear seat equipped with a flipping-up mechanism. As shown in FIG. 37A, the attachment portion 1912 of such a flipping-up seat S19 was fixed to the side wall 1911 or the door panel on the vehicle side portion. The vehicle seat S9 of the present embodiment is a flipping-up seat and is provided in the electric vehicle V9. As shown in FIG. 37B, the floor is composed of a first floor 901 and a second floor 902 disposed thereon. On the first floor 901, similar to the convex portion of the first embodiment, a convex portion 910 that protrudes upward and extends in the seat width direction is formed. Also, a battery BT9 is disposed under the convex portion 910.

[0079] In the present embodiment, an attachment portion 920 of the flipping-up vehicle seat S9 is attached to the convex portion 910 on which the battery BT9 is disposed. By providing the attachment portion 920 on the convex portion 910, the rigidity of the first floor 901 can be improved, thereby protecting the battery BT9.

[0080] <<Tenth Embodiment>> Next, the tenth embodiment of the present invention will be described with reference to FIG. 38. The tenth embodiment relates to a vehicle seat mounted on a vehicle such as an electric vehicle and capable of changing its orientation. Conventionally, in a vehicle seat that rotates about a rotation axis perpendicular to the floor, the occupied volume during rotation was determined by the longest part of the cushion seat, for example, the length of the diagonal of the seat cushion or the degree of protrusion of the seat back to the outside. Therefore, when rotating the seat, depending on the shape of the seat, there was a possibility of interference with the occupant or the door, etc.

[0081] In the rotatable vehicle seat S10 of the present embodiment, as shown in FIG. 38, when rotating, by shifting and inclining the rotation axis 1001, the occupied volume Vo2 when the vehicle seat S10 rotates is reduced. That is, the diameter R100 of the occupied volume Vo2 when the rotation axis 1001 is inclined is shorter than the diameter R110 of the occupied volume Vo1 when the rotation axis 1001 is not inclined, and interference with other components is suppressed. At this time, the inclination angle θ is preferably smaller than the angle forming the desired space and smaller than the angle at which it is possible to rotate without stress. By inclining the rotation axis 1001, the occupied volume Vo2 during rotation can be reduced, and interference with the occupant and other components can be suppressed.

[0082] <<Eleventh Embodiment>> Next, the eleventh embodiment of the present invention will be described with reference to FIGS. 39A to 41. The eleventh embodiment relates to a vehicle seat that can be moved in the front-rear direction by a slide mechanism. FIG. 39A is a view of the rear seat RS11 mounted on the vehicle V11 as seen from above. When moving the rear seat RS11 forward by placing it on the long rail 1120, the width W1101 of the seat cushion is longer than the distance W1102 between the wheel houses 1101, and it is difficult to move due to interference with the wheel houses 1101.

[0083] The rear seat RS11 (vehicle seat) of the present embodiment aims to provide a vehicle seat that can be moved even when the width is narrowed by the wheel houses 1101 or the like. As shown in FIG. 39B, the rear seat RS11 of this embodiment is provided with a floating bag (air cell 1110) outside the skeleton (cushion frame F11) of the seat cushion 1102, and supports the skin and the like. A tube for sending air (not shown) is connected to the air cell 1110, and the air cell 1110 can be inflated and deflated by supplying and discharging air. That is, by contracting the air cell 1110, as shown in FIG. 39B, the length W1101 in the seat width direction of the rear seat RS11 can be shortened. When moving the rear seat RS11 forward, it becomes possible to move it forward by contracting the air cell 1110 to narrow the seat width.

[0084] Also, not only outside the rear seat RS11, but also an air cell 1111 may be provided inside the rear seat RS11. As the air cell 1111 provided inside contracts, the seat width W1101 can be further narrowed by sliding the seat cushion 1102 in the seat width direction. Thereby, the rear seat RS11 can be moved in the front-rear direction without interfering with the wheel house 1101 or the like. After the movement, air can be sent into the air cells 1110 and 1111 to return to the original seat width W1101.

[0085] Also, as shown in FIG. 40, the outside of the seat cushion may be constituted by a support member 1121 having a rotation axis (rotation hinge). When moving the rear seat RS11 forward, the support member 1121 can be rotated and folded to narrow the seat width. Also, similar to the vehicle seat in FIG. 39, an air cell 1111 may be provided inside the seat cushion 1102, and the seat cushion 1102 may be slid inside the seat by contracting it to further narrow the seat width.

[0086] Also, when the vehicle seat S11B is rotated about the vertical axis to change the front-rear direction, the knees of the seated person may interfere with other seats, making rotation difficult. Therefore, as shown in Fig. 41, an air cell 1112 is provided in front of the vehicle seat S11B. When the vehicle seat S11B is rotated, the air cell can be contracted to shorten the length of the seat cushion 1112B in the front-rear direction. This can move the knees of the seated person inside the seat and suppress interference with other vehicle seats.

[0087] <<Twelfth Embodiment>> Next, the twelfth embodiment of the present invention will be described with reference to Figs. 42 to 43. The twelfth embodiment relates to a vehicle seat that can dive down forward. Conventionally, a vehicle seat in which the floor and the seat are connected via a link and can dive down forward is known. The rear seat RS12, which is a dive-downable vehicle seat of this embodiment, is provided on the floor panel 1202 of the vehicle V12 as shown in Fig. 42. The floor panel 1202 of the vehicle V12 is composed of an upper floor 1202a and a lower floor 1202c that is continuous via a stepped portion extending downward from the front end of the upper floor 1202a. The rear seat RS12 of this embodiment is configured such that when it dives down forward, the seat cushion is positioned in front of the stepped portion 1202b (on the lower floor 1202c). In an electric vehicle, a battery BT12 or a motor may be arranged under the upper floor 1202a. In such a configuration, when the seat is rear-ended in the dive-down state, the battery may move forward and collide with the seat in the fixed dive-down state, resulting in damage.

[0088] In the dive-down type rear seat RS12 of this embodiment, a link 1210 is used for the engagement between the seat cushion and the lower floor, and is configured such that the engagement of the link 1210 is disengaged when impacted from the rear. Also, the lower surface of the seat cushion is formed in a curved shape so that it can ride on the pedestal 1203. Therefore, in the dive-down state, the link 1210 (bolt portion) of the rear seat RS comes off, and the rear seat RS12 rides on the pedestal of the floor, creating a space between the front seat FS12 and the rear seat RS12.

[0089] Using FIG. 43, the operation of the rear seat RS12 when rear-ended will be described. When rear-ended from the rear (in the direction of arrow A) as shown in the upper part of FIG. 43, the battery BT12 disposed under the floor panel 1202 is pushed forward (in the direction of arrow B). Then, as shown in the middle part of FIG. 43, the battery BT12 hits the step portion 1202b of the floor, and the step portion 1202b of the floor deforms. At this time, the engagement of the link 1210 is released. When the engagement of the link 1210 is released, as shown in the lower part of FIG. 43, the rear seat RS12 can ride on the step portion 1202b of the floor, avoiding a strong impact on the battery BT12.

[0090] Note that the shape of the battery BT12 is formed such that when the battery BT12 moves forward due to an impact or the like, it first hits the central portion in the left-right direction of the rear seat (a position avoiding the frame extending in the front-rear direction among the seat cushion frames). For example, a convex portion facing the step portion 1202b of the floor may be provided at the central portion of the battery BT12.

[0091] The rear seat RS12, which is the dive-down seat of this embodiment, is configured such that when a load is applied from the rear in the dive-down state, the link engagement is released and it collapses in the front-rear direction. When the rear seat is sandwiched between the step portion of the floor and the front seat due to the crushing of the floor accompanying a collision, the rear seat can absorb the collision load, for example, suppressing damage to the battery BT12.

[0092] Note that the component disposed under the upper floor 1202a is not limited to the battery BT12, and a motor (not shown) may also be used. Further, such a configuration of the dive-down seat can be applied not only to rear-end collisions but also to front-end and side collisions.

[0093] <<13th Embodiment>> Next, the 13th embodiment of the present invention will be described with reference to FIG. 44. The 13th embodiment relates to a charging plug connected to a battery. Conventionally, charging of an electric vehicle has been performed by inserting a charging plug into a charging socket of the vehicle. In order to shorten the charging time, it is necessary to increase the power sent from the charging plug. However, when the power is increased, the amount of heat generated also increases. The heated battery needs to be cooled, but it has been difficult to sufficiently cool it by air cooling. Therefore, it is desirable to perform liquid cooling in order to safely and effectively rapidly charge the battery. In the charging plug of this embodiment, an attempt is made to safely perform rapid charging while cooling the battery by exchanging the refrigerant that cools the battery during charging.

[0094] The charging plug 1302 of this embodiment is provided with, separately from the power supply terminal 1314, a plug for exchanging the refrigerant of the refrigerant cooler that cools the battery BT13 mounted on the vehicle V13. By providing a discharge port 1311 / recovery port 1312 for supplying and refluxing the refrigerant, it is possible to cool the battery BT13 and perform rapid charging by supplying and refluxing the refrigerant from the charger side at the same time as charging.

[0095] As shown in FIG. 44, a battery case 1301 is mounted below the seat S13 in the vehicle V13, and a battery cooling layer 1303 is provided below the battery case 1301. A pre-battery-cooling refrigerant transport pipe 1304 is connected to the battery cooling layer. When the charging plug 1310 is inserted into the insertion port 1307, the refrigerant is configured to be supplied from the discharge port on the battery refrigerant discharge side. The battery cooling layer 1303 is provided with a heat sink 1306 for battery cooling, and it is possible to efficiently cool the heat transmitted from the battery case using a refrigerant. The battery cooling layer 1303 is connected to a high-temperature refrigerant transport pipe 1305 that transports the refrigerant that has become high-temperature after battery cooling. The high-temperature refrigerant transport pipe 1305 extends to the insertion port 1307, and it is possible to recover the high-temperature refrigerant from the recovery port.

[0096] The charging plug is provided with a power terminal 1314 of the battery and a discharge port 1311 / recovery port 1312 for the refrigerant below it. When the vehicle is equipped with both a normal charging insertion port and a rapid charging insertion port, at least the discharge 1311 / recovery port 1312 of the refrigerant is provided below the rapid charging insertion port. By discharging / recovering the refrigerant simultaneously with charging, it is possible to circulate it and efficiently cool the battery BT13, enabling charging with a larger amount of power and shortening the charging time.

[0097] << Fourteenth Embodiment >> Next, the fourteenth embodiment of the present invention will be described with reference to FIGS. 45A to 46C. The fourteenth embodiment relates to an electric vehicle in which the battery is replaceable. Conventional electric vehicles have problems such as taking a long time to charge because they use a method of connecting a charging plug to the battery mounted on the vehicle. On the other hand, although it is possible to replace the battery with a fully charged one, the battery is heavy and difficult to replace easily. In view of the above problems, the purpose of this embodiment is to provide an electric vehicle that can easily replace the battery.

[0098] As shown in Fig. 45A, the electric vehicle V14 of this embodiment includes a motor 1403 and a plurality of vehicle seats S14 (front seat FS14, rear seat RS14) arranged on the floor. Below the vehicle seat S14, a rail 1404 is provided so that the vehicle seat S14 can move in the front-rear direction. Between the rails 1404, a battery storage tunnel 1405 for storing the replacement battery BT14 is provided so as to pass between the rails 1404. The battery storage tunnel 1405 may be arranged so as to pass between the vehicle seats S14.

[0099] At the front end of the battery storage tunnel 1405, a battery lock 1406 for fixing the inserted battery BT14 is provided. The battery lock 1406 also serves as a connector for energization, and it is possible to fix the inserted battery BT14 and energize it at the same time.

[0100] The battery storage tunnel 1405 is provided with a slight downward slope at the rear. By inclining it, when replacing the battery, the battery in the battery storage tunnel 1405 will drop by its own weight, so it can be easily taken out. Also, by providing the connector for battery energization at the upper part of the battery storage tunnel 1405, when water leakage occurs, the water that has entered the battery storage tunnel 1405 can be discharged by its own weight. It is possible to insert and remove the battery BT14 without contacting the end of the battery BT14 with the ground. Also, the battery BT14 preferably has a cross-section with an arc-shaped upper side. By forming the upper side in an arc shape, even if it is flooded, the water will flow downward by its own weight and can be discharged from the inclined battery storage tunnel 1405.

[0101] The battery storage tunnel 1405 is configured to insert the battery BT14 through an insertion hole 1407 provided at the rear of the vehicle. The insertion of the battery BT14 may be manual, or the battery BT14 may be automatically replaceable using mechanical means such as a robot. At this time, as shown in FIG. 45C, if a position recognition mark 1408 for battery replacement is provided around the insertion hole 1407, the position of the insertion hole can be automatically recognized accurately, and the replacement of the battery BT14 can be facilitated.

[0102] FIGS. 46A to 46C show another example of the electric vehicle 1401. In the electric vehicle 1401 shown in FIG. 45A, one battery storage tunnel is provided in the center, but in the electric vehicle 1401A shown in FIG. 46A, the rear wheels are arranged in the center and the vehicle is tricycle-shaped, so that battery storage tunnels 1405A are arranged on both the left and right sides of the vehicle body. Since the configuration of the battery storage tunnel 1405A is the same as that shown in FIG. 45A, a detailed description thereof is omitted. By providing the battery storage tunnels 1405A on both the left and right sides of the vehicle body, more batteries BT14 can be mounted, and the cruising range can be extended.

[0103] <<Fifteenth Embodiment>> Next, a fifteenth embodiment of the present invention will be described with reference to FIGS. 47 to 54. The fifteenth embodiment relates to an occupant protection device that appropriately protects an occupant at the time of collision prediction. Japanese Patent Application Laid-Open No. 2021-37923 discloses an occupant protection device including a main airbag device that protects an occupant at the time of a vehicle collision, a sub-airbag device that sweeps away the occupant's arm, and a control unit that deploys the main airbag bag body after the sub-airbag bag body is deployed at the time of collision prediction.

[0104] Since the sub-airbag device is provided on the seat, even if the seat is moved rearward by the seat slide device, the sub-airbag bag body can be immediately deployed at the time of collision prediction, and the occupant can be appropriately protected without delaying the deployment of the main airbag bag body.

[0105] However, although Japanese Patent Application Laid-Open No. 2021-37923 discloses using a sub-airbag bag body to knock off a passenger's arm, it does not disclose the behavior of the sub-airbag bag body during deployment and the storage method of the sub-airbag bag body. Therefore, in the present embodiment, it is an object to show more specific behaviors and storage methods of the sub-airbag bag body, and to improve the protection performance of the passenger by appropriately deploying the sub-airbag bag body to knock off the passenger's arm.

[0106] As shown in FIG. 47, the passenger protection device 1501 of the present embodiment includes a vehicle seat S15, a main airbag 1503, a sub-airbag 1504, a collision prediction means 1505 for predicting a collision of the vehicle, and a deployment control means 1506.

[0107] The vehicle seat 1502 is provided so that a passenger can sit and move in the longitudinal direction of the vehicle. The main airbag 1503 is configured to deploy from the front of the vehicle toward the passenger when a collision of the vehicle is predicted by the collision prediction means 1505. The sub-airbag 1504 is stored in the vehicle seat 1502 and is configured to deploy toward the passenger side when a collision is predicted. The deployment control means 1506 is configured to deploy the sub-airbag 1504 from the vehicle seat 1502 and then deploy the main airbag 1503 when a collision of the vehicle is predicted by the collision prediction means 1505.

[0108] Also, as shown in FIGS. 47 to 48, the sub-airbag 1504 includes a first bag portion 1510 and a second bag portion 1511. The first bag portion 1510 and the second bag portion 1511 have a joining portion 1512 that joins them by adhesion or sewing. The joining portion 1512 has a breaking portion 1514 and a to-be-broken portion 1515. When air is injected into the first bag portion and the second bag portion 1511 is deployed, the second bag portion 1511 is configured such that the breaking portion 1514 breaks, allowing air to enter and deploy the second bag portion 1511.

[0109] When in a collision, if the occupant holds a mobile terminal 1507 or the like, the sub-airbag 1504 is deployed, and the occupant's arm and the mobile terminal 1507 are swung downward. It is possible to prevent the mobile terminal 1507 or the occupant's arm from being pinched between the main airbag 1503 and the occupant's body, and the occupant can be appropriately protected.

[0110] When storing the sub-airbag 1504, as shown in FIG. 49, the second bag portion 1511 is stored so as to be wound around the first bag portion 1510. At this time, the break portion 1514 is preferably disposed on the distal end side of the first bag portion 1510. By storing the second bag portion 1511 in this way, the sub-airbag 1504 can be efficiently stored, and can be deployed so as to swing down the occupant's arm.

[0111] A second example of the sub-airbag 1504 will be described with reference to FIGS. 50A and 50B. As shown in FIG. 50A, in the sub-airbag 1504A of the second example, the second bag portion 1511A is disposed at the distal end portion of the first bag portion 1510. And the second bag portion 1511A is stored by being wound clockwise from its distal end, and the distal end of the first bag portion 1510A is disposed outside the distal end of the wound second bag portion 1511A. By storing in this way, the sub-airbag 1504A can be efficiently stored.

[0112] Next, a third example of the sub-airbag 1504 will be described with reference to FIGS. 51A to 52B. As shown in the sub-airbag 1504B shown in FIG. 51A, in addition to the second bag portion 1511B that deploys downward during a collision, the first bag portion 1510 may be provided with a third bag portion 1516 that deploys upward. At this time, the deployment control means 1506 may control such that the second bag portion 1511C deploys after the first bag portion 1510C deploys, and the third bag portion 1516 deploys after the second bag portion 1511C deploys. As shown in Fig. 51B, the second bag portion 1511B and the third bag portion 1516 are configured to be compact by winding the respective tips during storage. At this time, as shown in Fig. 52B, the second bag portion 1511B may be wound counterclockwise from its tip, and the third bag portion 1516 may be stored clockwise. At this time, the position where the sub-airbag 1504 is stored is located below the storage position of the sub-airbag 1504 in the first example. By providing the third bag portion 1516, the head of the occupant can be protected.

[0113] Also, as in the occupant protection device 1501C shown in Figs. 53A and 53B, a sub-marine airbag 1517 may be provided in the seat cushion of the vehicle seat S15C separately from the sub-airbag 1504C. When viewed from the vehicle front direction, the sub-marine airbag 1517 may be arranged such that a part of the second bag portion and a part of the sub-marine airbag 1517 overlap in the vertical direction when deployed. Further, when the sub-marine airbag 1517 is deployed, it may be configured such that a gap is formed between the front end portion of the seat cushion 1502b and the second bag portion 1511C. By providing the gap 1518, it is possible to prevent the second bag portion 1511C and the sub-marine airbag 1517 from excessively pressing parts such as the feet and arms of the occupant.

[0114] Also, as in the occupant protection device 1501D shown in Fig. 54, the sub-airbag 1504D may be configured to deploy forward from an airbag storage portion 1519 provided on the back surface of the seat back. It can push down the occupant's arm and protect the occupant's head.

[0115] The first to fifteenth embodiments of the present invention have been described above with reference to the drawings. As an example of the present invention, an electric vehicle and a vehicle seat mounted thereon have been given, and the configuration example thereof has been described. However, the present invention is not limited to electric vehicles, and may be applied to engine vehicles, hybrid vehicles equipped with both a motor and an engine for running, vehicles equipped with a battery and a fuel cell as a power source, and the like. Further, the present invention is not limited to land-based vehicles having wheels such as automobiles and railways, and vehicle seats mounted thereon, and may be applied to aircraft and ships moving other than on land and vehicle seats mounted thereon.

Explanation of Signs

[0116] <First Embodiment> V Vehicle FL Vehicle Floor FL1 First Floor FL2, FL2A Second Floor FL3 Bottom of Vehicle Body BT Battery S, SA Vehicle Seat FS Front Seat RS Rear Seat 2 Passenger Compartment 3 Vehicle Body 10 Protrusion 11 Rail Support Member 12, 12A Raised Member 13 Recess 14 Recess 15 Vehicle Body Structure Part 16 Rotation Device 17 Recess 18 Slit 20 Long Rail 21 Lower Rail 22 Upper Rail 23, 23A Airbag Device 24, 24A Airbag 25 Seat Detachment Mechanism 26 Locking Member 27 Striker 28 Lock Spring 29 Cable 30 Lever 31 Protrusion 32 Hole 35 Armrest 36 Wheel 37 Locking device 38 Storage part 39 Floor reinforcement member 40 Honeycomb plate

[0117] <Second Embodiment> V2, V2A Vehicles S2 Vehicle seat BT2 Battery 201 First floor 202 Second floor 203 Convex part 204 Foot mounting part (foot bracket) 220 Foot bracket

[0118] <Third Embodiment> V3 Vehicle FS3 Front seat RS3 Rear seat BT3 Battery unit 301 Floor 302 Concave part 320 Long rail 321 Cover

[0119] <Fourth Embodiment> V4 Vehicle BT4 Battery 401 First floor 402 Second floor 410, 410A Rail mounting brackets 411 Mounting point 412 Opening 413, 413A Inclined part 420 Long rail

[0120] <Fifth Embodiment> RS5, RS5A Rear seats 501 First floor 502 Second floor 510 Foot bracket 511 Reinforcement member 520, 520A Foundation

[0121] <Sixth Embodiment> V6 Vehicle S6, S6A Vehicle seat BT6 Battery D6 Door panel TB Table 601 First floor 602 Second floor 610 Storage section 611 Cover section

[0122] <Seventh Embodiment> V7 Electric vehicle S7 Vehicle seat BT7 Battery 701 First floor 702 Second floor 710 Shock absorber 711 Reinforcement panel 712 Floor mat

[0123] <Eighth Embodiment> V8 Vehicle S8 Vehicle seat BT8 Battery 802 Floor 810 Storage recess 810a Bottom

[0124] <Ninth Embodiment> V9 Electric vehicle S9 Vehicle seat BT9 Battery 901 First floor 902 Second floor 910 Protrusion 911 Side wall 920 Mounting section

[0125] <Tenth Embodiment>

[0126] S10 Vehicle seat Occupied volume of Vo1 and Vo2 Diameter of R100 and R110 Rotation axis 1001

[0127] <The Eleventh Embodiment> Vehicle V11 Rear seat RS11 and RS11A Seat S11B Seat width W1101 Distance between wheel houses W1102 Reduced width D11, D11A, and D11B Cushion frame F11 Wheel house 1101 Seat cushion 1102 Air cells 1110, 1111, and 1112 Long rail 1120 Support member 1121

[0128] <The Twelfth Embodiment> Vehicle V12 Front seat FS12 Rear seat RS12 Battery BT12 Floor panel 1202 Upper floor 1202a Step portion 1202b Lower floor 1202c Pedestal 1203 Link 1210

[0129] <The Thirteenth Embodiment> Electric vehicle V13 Seat S13 Battery BT13 Battery case 1301 Battery cooling layer 1303 Battery cooling pre-refrigerant transport pipe 1304 High-temperature refrigerant transport pipe 1305 Heat sink 1306 Charging socket 1307 Charging plug 1310 Charging terminal 1314 1311 Outlet 1312 Recovery port

[0130] <The Fourteenth Embodiment> V14, V14A Electric vehicle FS14 Front seat RS14 Rear seat BT14 Battery 1403 Motor 1404 Rail 1405, 1405A Battery storage tunnel 1406 Battery lock 1407, 1407A Insertion hole 1408, 1408A Position recognition mark

[0131] <The Fifteenth Embodiment> S15, S15C Vehicle seat 1501 Occupant protection device 1503 Main airbag 1504, 1504A, 1504B, 1504C Sub - airbag 1505 Collision prediction means 1506 Deployment control means 1507 Portable terminal 1510 First bag portion 1511, 1511A, 1511B, 1511C Second bag portion 1512 Joint portion 1514 Breaking portion 1515 Non - breaking portion 1516, 1516C Third bag portion 1517 Sub - marine airbag 1518 Gap 1519 Airbag storage portion

Claims

1. A seat on which an occupant sits, a rail for sliding the seat, a first floor formed with a plurality of convex portions protruding upward, and a second floor provided above the first floor, wherein the rail is disposed across the plurality of convex portions of the first floor below the second floor, and the seat is disposed above the second floor and slidably connected to the rail. A vehicle characterized by this.

2. The vehicle according to claim 1, wherein each of the plurality of convex portions extends in the vehicle width direction and is arranged side by side in the vehicle longitudinal direction.

3. A plurality of the seats are provided, and the vehicle according to claim 1, wherein two or more of the seats are arranged on the rail in the vehicle longitudinal direction.

4. The vehicle according to claim 1, wherein the rail is disposed across three or more convex portions.

5. The vehicle according to claim 1, further comprising a rail support member disposed between the plurality of convex portions and supporting the rail from below.

6. At least one of the plurality of convex portions is formed to be lower in height than the other convex portions, and a raising member for making the height equal to that of the other convex portions is provided on the convex portion having a lower height than the other convex portions. The vehicle according to claim 1, characterized by this.

7. The vehicle according to claim 1, wherein a concave portion is formed on the upper surface of the plurality of convex portions, and the rail is disposed in the concave portion.

8. The vehicle according to claim 1, wherein one end of the rail is in contact with a side surface of a vehicle body structure portion standing upright from the first floor.

9. The rail is composed of a lower rail fixed to the first floor and an upper rail sliding on the lower rail, and the vehicle according to claim 1, wherein a seat attachment / detachment mechanism for detachably connecting the seat is provided on the upper rail.

10. A plurality of the rails are provided, and the vehicle according to claim 1, further comprising a floor support member disposed between the plurality of rails on the first floor and supporting the second floor.

Images