JP3387191B2 - Electric car - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vehicle that uses a battery as a power source, and more particularly, to improve waterproofness of a charger mounted on a vehicle body and improve heat dissipation of the charger when charging the battery. The present invention relates to an electric vehicle suitable for the purpose.

[0002]

2. Description of the Related Art Conventionally, electric vehicles such as electric tricycles, which run on a battery as a power source, have been in widespread use. Among electric vehicles of this type, for example, an electric vehicle disclosed in Japanese Utility Model Publication No. 5-17046 is disclosed. Some vehicles, such as a car (electric wheelchair), have a battery and a charger mounted inside the vehicle body. When charging the battery in this type of electric vehicle, open the lid (lid) that is openably and closably mounted on the vehicle body cover, pull out the charging cord from the cord reel attached to the charger to the outside of the vehicle, and When the plug is connected to an external AC power outlet, the transformer of the charger converts the AC current into a DC current and supplies the DC current to the battery.

[0003]

However, the above-mentioned conventional electric vehicle has the following problems. That is, when raining, rainwater enters the inside of the body of an electric vehicle from between the wheels and fenders, so it is necessary to take waterproof measures around the charger. Since the structure is simply placed inside the vehicle body, there is a risk that rainwater that has entered the interior of the vehicle through the gaps in the vehicle body may adhere to the exposed state of the transformer of the charger or the charging cord or plug of the cord reel. . In particular, if the coating of the charging cord is deteriorated due to secular change or the like, there is a risk of leakage.

Further, since the charger is installed at a relatively low position of the vehicle body from the viewpoint of space inside the vehicle body of the electric vehicle, there is a drawback that it is particularly susceptible to intrusion of rainwater. Furthermore, since the charger generates a considerable amount of heat during charging of the battery, it is important to secure heat dissipation (breathability), but it is difficult to ensure heat dissipation that is contrary to waterproofness with the conventional technology. There was a problem.

[0005]

It is an object of the present invention to improve the inconvenience of the above-mentioned conventional example, and in particular, to improve the waterproofness of the charger and the heat dissipation of the charger when charging the battery. The purpose is to provide a car.

[0006]

SUMMARY OF THE INVENTION The present invention according to claim 1 is characterized in that the battery is equipped with a battery that is a power source for driving wheels of a vehicle body, and an external power source connecting cord that is detachably connected to an external power source. In an electric vehicle equipped with a battery charger and a rear cover that covers a rear part of the vehicle body including the battery charger, a partition wall member is provided around the battery charger, and the rear cover is connected to the external power source of the battery charger. An opening for feeding out the cord for use is provided, and a lid that covers the opening is provided on the rear cover so as to be openable and closable, and the partition wall member includes a bottom surface of the charger and an upper surface portion of the vehicle body. Is fixed to the vehicle body so that a predetermined space is formed between the vehicle body and the upper surface portion of the vehicle body facing the bottom surface of the charger is an inclined surface having a downward slope toward the rear of the vehicle body. You have me. This aims to achieve the above-mentioned object.

The present invention according to claim 2 has a structure in which the attachment / detachment portion between the rear cover and the lid body has a closed structure.

According to a third aspect of the present invention, a notch is provided on a side surface of the partition wall member so as to correspond to the lid of the rear cover.

[0009]

According to the first aspect of the present invention, the partition wall member is provided around the charger, the charger and the partition wall member are covered with the rear cover, and the partition wall member is provided on the bottom surface of the charger and the upper surface of the vehicle body. Is fixed to the vehicle body so that a predetermined gap is created between the two, and the upper surface of the vehicle body facing the bottom surface of the charger has an inclined surface with a downward slope toward the rear of the vehicle. Even if rainwater intrudes into the inside of the rear cover from between the rear cover and the drive wheels, the partition wall member can prevent rainwater from adhering to the charger, and the rainwater that has entered the inside of the rear cover can be transferred to the rear of the vehicle body. It is possible to smoothly drain the water along the upper surface portion of the vehicle body having a downward slope, whereby the waterproofness of the charger can be improved.

According to the second aspect of the present invention, since the lid covering the opening of the rear cover and the attachment / detachment position of the rear cover have a closed structure, even if rain falls on the surface of the rear cover, for example, It is possible to reliably prevent rainwater from entering the inside of the rear cover via the attachment / detachment portion to / from the rear cover, and thereby improve the waterproofness of the charger.

According to the third aspect of the present invention, since the notch portion is provided on the side surface of the partition wall member provided around the charger so as to correspond to the lid body of the rear cover, the lid body of the rear cover is provided. When it is opened and the cord for connecting the external power source of the charger is extended from the opening of the rear cover and the cord for connecting the external power source is connected to the external power source to charge the battery by the charger, it is generated from the charger during charging. The heat can be dissipated through the cutout portion, which can improve the heat dissipation of the charger when the battery is charged.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the electric vehicle of the present invention is applied to an electric tricycle will be described below with reference to the drawings.

First, the overall structure of the electric three-wheeled vehicle in this embodiment will be described with reference to FIG. 4. The electric three-wheeled vehicle 1, which is capable of traveling forward and backward, has one steering wheel 2 and two drive wheels 3a. A vehicle body 4 equipped with 3b, and a handle post 6 hung vertically from the front portion of the vehicle body 4 via a leg shield 5.
An operating box 7 and an operating handle 8 mounted on the handle post 6; a battery cover 10 mounted on the center of the vehicle body 4 and accommodating a battery 9; and a support member 11 on the battery cover 10. Rear cover 15 that accommodates a driver seat 12 that is installed as a vehicle, and a charger partitioning member 27 (enclosed by a charger 13 and a clutch lever 14 (see above FIG. 1)) that are installed in the rear portion of the vehicle body 4.
A frame 16 for fixing the charger 13 and a battery 9
And a motor 17 for driving the drive wheels 3a and 3b based on the power supply from Reference numeral 6a in the figure
Indicates a storage basket.

Next, the structure of the charger 13 and the wall member for partitioning the charger (hereinafter, abbreviated as partition wall member) in this embodiment will be described with reference to FIGS.
Is equipped with a charger main body 18 having a rectangular parallelepiped shape, a heat sink 19 fixed to the upper surface of the charger main body 18, and a corner of the rear surface of the charger main body 18 (the surface on the backward direction side of the electric tricycle) so as to be detachable. A pair of fuses 20 and 21 are provided, and a cord reel 22 that is detachably mounted on the right side surface (the right side surface in the forward direction of the electric tricycle) of the charger main body 18.

More specifically, on the right side surface and the left side surface of the charger main body 18 (the surface on the left side in the forward direction of the electric tricycle), there are frame mounting members 23 and 24 having an L-shaped vertical section. The bottom surface 18a of the charger main body 18 is provided with a predetermined dimension L (for example, 10 mm) with respect to the frame mounting surfaces 23a and 24a of the frame mounting members 23 and 24.
It is arranged at a position raised by about 15 [mm] (see FIGS. 7 and 8). Also, the frame mounting surface 2
Screw mounting holes 23b, 23c, 2 are provided in 3a, 24a.
4b and 24c are formed respectively.

The heat sink 19 has a large number of fins 19a, 19b, 19c, ...
・ It has. In addition, the cord reel 22 feeds out a charging cord 26 having a charging plug 25 attached to the tip /
It can be wound up and stored in a wound state, and is detachably attached to the right side surface of the charger main body 18. The charging cord winding shaft 22a of the cord reel 22 is arranged horizontally, and the charging plug 25 of the charging cord 26 fed from the cord reel 22 is detachably connected to an outlet of an external power source. There is.

Here, FIGS. 7 and 8 are views showing the attachment state of the cord reel 22 to the charger body 18, and the charging cord 25 is attached to the end surface of the cord reel 22 on the attachment side to the charger body 18. A connection portion 22b for electrically connecting the base end portion and a terminal (not shown) of the transformer inside the charger main body 18 is provided. Further, screw attachment members 22c, 22d, 22e having screw attachment holes are provided at equal intervals in the circumferential direction at, for example, three locations on the outer peripheral edge of the cord reel 22 (see FIGS. 9 to 11). The cord reel 22 includes screw mounting members 22c, 22d, 2
It is detachable from the charger main body 18 via the screw 2e and the screw S ....

Further, a partition wall member 27 is arranged around the charger 13, and a front surface (a surface on the forward direction side of the electric tricycle), a rear surface (a surface on the backward side of the electric tricycle) of the charger 13, A slight gap is provided between the left side surface (the left side surface in the forward direction of the electric tricycle) and the inner wall surface of the partition wall member 27, and a side surface of the cord reel 22 of the charger 13. A predetermined space in which the clutch lever 14 (see FIG. 1) and the like can be arranged is provided between (the surface on the right side in the forward direction of the electric tricycle) and the inner wall surface of the partition wall member 27. .

Rear cover mounting bosses 28a, 28 are provided on the right upper edge 28 and the left upper edge 29 of the partition wall member 27, respectively.
b, 29a, 29b are formed respectively. Further, at the lower end portion of the right side surface 30 and the lower end portion of the left side surface 31 of the partition wall member 27, there are screw mounting members 30a, 30b, 31a, 3 having a U-shaped vertical cross-section and screw mounting holes.
1b are provided respectively. Reference numeral S ... In the drawing indicates a screw.

On the front surface 32 of the partition wall member 27 (the surface on the forward direction side of the electric tricycle), a connector (not shown) connected to a wire harness wired between the charger 13 and the battery 9 is taken out. Notch 32a for heat dissipation and notch 32b for heat dissipation are formed, and the partition wall member 27
A notch portion 33a for fuse maintenance and a notch portion 33b for feeding the charging cord 26 are formed on the rear surface 33 (the surface on the backward direction side of the electric tricycle). Furthermore, the partition wall member 2
7 to the front side of the front surface 32 of the battery cover 10 (see FIG.
(See) is located.

Next, the structure of the rear cover 15 and the rear cover 15 and the frame 1 of the electric tricycle 1 in this embodiment.
The attachment state of the charger 13 to the battery pack 6 will be described with reference to FIGS. 1 to 3 and FIGS.
Includes a rear cover body 34, a right drive wheel fender 35 and a left drive wheel fender 36 that are integrally provided on the rear cover body 34, and a rear cover lid 37 that is openable and closable with respect to the rear cover body 34. Has become.

FIG. 1 shows the rear cover 15, the partition wall member 27, the charger 13 and the frame 16 in a disassembled state, and FIG. 2 shows the charger 13 and the partition wall member 27 with respect to the rear cover 15 and the frame 16. FIG. 3 shows the mounted state, in which the rear cover lid 37 of the rear cover 15 is opened and the fuses 20 and 21 of the charger 13 and the cord reel 2 are shown.
2, a state in which the charging plug 25 of the charging cord 26 and the like are exposed outside the vehicle body is shown.

The rear cover body 34 is composed of the partition wall member 2
7 has a shape larger than the shape of 7, and is configured as a box shape with an open bottom, and has a shape in which the rear cover lid 37 engages at a portion from the upper right portion to the rear right portion of the rear cover body 34. The opening 38 is formed, and screw mounting holes 34a and 34b are formed in the vicinity of the opening 38 on the right side of the upper surface of the rear cover body 34. Reference numeral 39 in the drawing denotes an engaging portion that engages with the outer peripheral portion of the support member 11 that supports the driver seat 12 described above.

The rear cover lid 37 is made of a flexible material (for example, polypropylene resin), and is formed to have a substantially L-shaped vertical cross section as shown in FIG. Screw mounting holes 37a, 37b are formed at the end of the rear cover lid 37 (the end on the forward direction side of the electric tricycle), and the rear cover lid 37 is fixed to the rear cover body 34 via, for example, two screws S. In addition, the surface of the rear cover lid 37 and the surface of the rear cover body 34 are located on the same plane. Further, at both widthwise end portions of the rear cover lid 37 (end portions on both left and right sides in the forward direction of the electric vehicle tricycle),
As shown in FIG. 13, the convex portions 37c and 37d are integrally formed in a state of protruding downward.

Further, as shown in FIG. 12, a portion of the rear cover lid 37 which is parallel to the fixed side edge of the rear cover main body 34 is formed thinly to form a hinge 37j. The rear cover lid 37 is openable and closable with respect to the rear cover body 34 via the fixed portion, and is usually an opening 38 of the rear cover body 34.
To close the fuses 20, 21,
The cord reel 22, the charging plug 25, etc. are covered.

The portions of the opening 38 of the rear cover main body 34 along both sides in the width direction (both left and right sides in the forward direction of the electric vehicle tricycle) are recessed portions 34g, 3 as shown in FIG.
4h is integrally formed. When the rear cover lid 37 is closed with respect to the rear cover body 34, the protrusions 37c, 3
7d and the recesses 34g and 34h are engaged with each other. That is, the rear cover lid 37 and the rear cover body 3
By making the engaging points of 4 a closed structure, it is possible to prevent rainwater and the like from entering the inside of the rear cover 15. Further, the rear cover lid 37 is attached to the rear cover main body 34.
When opened against, the rear cover lid 37 has a hinge 37.
It can be easily rotated upward through j.

Further, screw mounting holes 34c, 34d, are formed on the right side and left side of the upper surface of the rear cover body 34.
34e and 34f are formed respectively, and the screw mounting holes 34c to 3 are provided on the back side of the upper surface of the rear cover body 34.
4f, and a rear cover mounting boss 28a formed on the right upper edge 28 and the left upper edge 29 of the partition wall member 27,
Partition wall member 27 via 28b, 29a, 29b
The right upper edge 28 and the left upper edge 29 are fixed in a close contact state by, for example, four screws S. The above structure prevents rainwater from entering the inside of the partition wall member 27, and at the same time, prevents the partition wall member 2 from entering.
7 is also used as a mounting brace for the rear cover 15.

The frame 16 is provided with a charger mounting surface 40 for fixing the charger 13 and an inclined surface 41 provided so as to face the bottom surface 18a of the charger main body 18 constituting the charger 13.
An elongated rectangular hole 42 through which the clutch lever 14 can be inserted, a pair of cover members 43 formed along both sides of the hole 42 in the longitudinal direction, and a support member 11 for supporting the driver's seat 12. And a supporting member fixing portion 44 having a mounting hole for mounting the lower part of the.

On the charger mounting surface 40 of the frame 16, screw mounting holes 40a, 4a are provided near the left and right sides of the inclined surface 40.
0b, 40c, 40d are formed respectively. In the charger mounting portion 40 'of the charger mounting surface 40, the screw mounting holes 40a to 40d, and the screw mounting holes 23b formed in the frame mounting surfaces 23a and 24a of the frame mounting members 23 and 24 of the charger 13 to. Charger 13 via 24c
The frame mounting surfaces 23a, 24a are fixed by, for example, four screws S.

Further, the charger mounting surface 40 of the frame 16 has screw mounting holes 40e, 40 at the left and right ends thereof.
f, 40g and 40h are formed respectively. In the partition wall member mounting portion 40 ″ of the charger mounting surface 40, the screw mounting holes 40e to 40h and the screw mounting members 30a to 30h provided on the right side surface 30 and the left side surface 31 of the partition wall member 27, respectively. The partition wall member 27 is fixed by, for example, four screws S ... Through the screw mounting holes of 31b.

The inclined surface 41 of the frame 16 is shown in FIG.
As shown in FIG. 4, the rear cover 15 is configured as a surface having a predetermined downward slope in the backward direction of the electric vehicle tricycle.
If rainwater or the like enters the inside of the car, the rainwater will easily flow to the rear of the vehicle.

FIG. 15 shows a state in which the charger 13 is fixed to the frame 16 as seen from the rear of the vehicle body, and FIG. 16 shows a state in which the charger 13 is fixed to the frame 16 as seen from the right side of the vehicle body. The charger 13 is arranged substantially above the axles of the drive wheels 3a and 3b. Reference numeral K in FIG. 15 indicates the bottom surface 18a of the charger main body 18 of the charger 13 and the frame 16
16 shows a space between the inclined surface 41 and the inclined surface 41 of FIG.
Indicates a case receiving surface that engages with a rear axle case (described later) that covers the axles of the drive wheels 3a and 3b, and the symbol C indicates the center of the axles of the drive wheels 3a and 3b.

FIG. 17 is a view showing the arrangement of the left and right drive wheels 3a, 3b and the like, and the arrangement of the charger 13 and the clutch lever 14 inside the rear cover 15 as seen from the battery side. 3b are connected via a left axle 45, a right axle 46, a rear axle case 47 that covers the left axle 45 and the right axle 46, and a gear box 49 having a differential gear 48 and the like. Further, the differential gear 48 is driven by the drive wheels 3a. 3b drive motor 17 (see FIG. 4)
Is connected to a gear (not shown) fixed to the output shaft of the.

The gear box 49 includes a clutch lever 1
4 is attached, and the operation portion 14a of the clutch lever 14 is provided with the above-described hole portion 42 formed in the frame 16.
And, through the cover member 43, the partition wall member 27 arranged inside the rear cover 15 is projected into the above-mentioned space.

When the operating portion 14a of the clutch lever 14 is operated in a predetermined direction, the rotational force of the motor 17 is transmitted to the left axle 45 and the right axle 46 via the differential gear 48 and the like, so that the left and right drive wheels 3a and 3b are transmitted. Is ready for rotation. On the other hand, the clutch lever 14
When the operating portion 14a of is operated in a predetermined direction, the left axle 4
5. Since the transmission of the rotational force of the motor 17 to the right axle 46 is cut off, the left and right drive wheels 3a and 3b are in a free state.

Next, the operation of this embodiment constructed as described above will be described.

For example, when it is raining while the electric tricycle 1 is running, even if the rear cover 15 of the electric tricycle 1 is rained, the rear cover lid 37 and the rear cover body 34 covering the opening 38 of the rear cover body 34 are separated. The attachment / detachment points are the protrusions 37c, 3 formed on the rear cover lid 37.
7d and a recess 34g formed in the rear cover body 34,
Since the structure is hermetically sealed via 34h, it is possible to prevent rainwater from entering the inside of the rear cover 15. Thereby, the waterproof property of the charger 13 can be improved.

On the back side of the upper surface of the rear cover body 34, the screw mounting holes 34c to 34c of the rear cover body 34.
34f, and the rear cover mounting boss 28 formed on the right upper edge 28 and the left upper edge 29 of the partition wall member 27.
The right upper edge 28 and the left upper edge 29 of the partition wall member 27 are screw S through a, 28b, 29a, 29b.
Since it is fixed in a close contact state, it is possible to prevent rainwater from entering from outside the left and right side surfaces of the partition wall member 27. Thereby, the waterproof property of the charger 13 can be improved. Furthermore, since the partition wall member 27 is also used as a mounting brace for the rear cover 15,
The rigidity of the rear cover 15 can also be increased.

Further, for example, even if rainwater intrudes into the inside of the rear cover 15 from between the right drive wheel fender 35, the left drive wheel fender 36 and the drive wheels 3a and 3b, which form the rear cover 15, the charger 13 can be used. The partition wall member 27 that surrounds the periphery of the rear cover body 34 of the rear cover 15 is
Since the cord reel 22 is vertically attached to the side surface of the charger main body 18 while being fixed in close contact with the back side of the battery, rainwater does not easily enter the partition wall member 27 and Even if it gets in, it is easily removed, and the bottom surface 18a of the charger main body 18 is fixed to the frame 16 with the bottom surface 18a of the frame 16 raised to the bottom, and the tilt surface 41 descends toward the rear of the vehicle body. Since it has a slope, rainwater that has entered the inside of the rear cover 15 flows down toward the rear of the vehicle body through the inclined surface 41. Thereby, the waterproof property of the charger 13 can be improved.

Since the battery cover 10 is arranged on the front side of the front surface 32 of the partition wall member 27, it is possible to prevent rainwater from entering from the front surface 32 side of the partition wall member 27 and Front face 3 of partition wall member 27
Since the cutouts 32a and 32b are formed in the battery 2, the heat generated from the charger 13 during charging of the battery 9 by the charger 13 can be dissipated through the cutouts 32a and 32b. Thereby, the charger 13 for charging the battery
It is possible to improve heat dissipation.

Further, inside the partition wall member 27 covered by the rear cover 15, the fuses 20, 21 and the charger 13 provided with the charging cord 26 feeding portion of the cord reel 22 toward the rear of the vehicle body, and the clutch lever 14. The operation part 14a is disposed, the notch parts 33a and 33b are formed in the rear surface 33 of the partition wall member 27, and the rear cover main body 34 constituting the rear cover 15 is equipped with the rear cover lid 37 so as to be opened and closed. It is possible to easily perform work for replacing 20, 21, feeding of the charging cord 26 when connecting to an external power source, operation of the clutch lever 14, and the like.

Further, since the hinge 37j is formed in parallel along the end of the rear cover lid 37 on the side fixed to the rear cover body 34, the rear cover lid 37 can be easily opened and closed.

Further, since the operating portion 14a of the clutch lever 14 is arranged inside the partition wall member 27 covered with the rear cover 15 as described above, the clutch lever 14
When operating, the rear cover lid 37 must be opened each time and a hand must be inserted into the partition wall member 27. Therefore, unnecessary operation of the clutch lever 14 can be prevented except when necessary.

As described above, according to the present embodiment, since it is constructed and functions as described above, it is possible to improve the waterproof property of the charger 13, and at the same time, to dissipate heat in the charger 13 when charging the battery. Therefore, it is possible to achieve various effects such as improvement in performance and the like, and maintenance such as fuse replacement work of the charger 13 can be easily performed. Further, as a waterproof mechanism for the charger 13, the rear cover 15 and the frame 16 which are pre-installed in the electric tricycle 1 are provided.
Since it uses the above, there is also an advantage that the cost required for waterproofing the charger 13 can be reduced.

In this embodiment, one hinge 37j is formed on the rear cover lid 37, but the invention is not limited to one hinge 37j. For example, as shown in FIG. 18, the rear cover lid 37 is parallel to the hinge 37j. Further, another hinge 37k may be formed at a predetermined interval, and notches 34j and 34k may be formed in portions of the opening 38 of the rear cover body 34 on both sides in the width direction. As a result, when the rear cover lid 37 is opened,
If the rear cover lid 37 is bent via the hinge 37k and the end edge 37m is engaged with and fixed to the notches 34j, 34k, charging work, fuse replacement work, and the like can be easily performed.

[0046]

As described above, according to the electric vehicle of the present invention of claim 1, a partition wall member is provided around the charger, and the charger and the partition wall member are covered with a rear cover for partitioning. The wall member is fixed to the vehicle body so that there is a predetermined gap between the bottom surface of the charger and the upper surface portion of the vehicle body, and the upper surface portion of the vehicle body facing the bottom surface of the charger is an inclined surface with a downward slope toward the rear of the vehicle body. Therefore, even if rainwater intrudes into the inside of the rear cover from between the rear cover and the drive wheels during traveling of the electric vehicle during rainfall, for example, the partition wall member can prevent the rainwater from adhering to the charger. The rainwater that has entered the inside of the rear cover can be smoothly drained toward the rear of the vehicle body along the upper surface of the vehicle body that has a downward slope, which improves the waterproofness of the charger. In addition, since the rear cover or the like that is pre-installed in the electric vehicle is used as the waterproof mechanism of the charger, it is possible to reduce the cost required for waterproofing the charger. Play.

According to the electric vehicle of the second aspect of the present invention, since the attachment / detachment position of the lid for covering the opening of the rear cover and the rear cover has a closed structure, even if rain falls on the surface of the rear cover, for example. It is possible to reliably prevent rainwater from entering the inside of the rear cover via the attachment / detachment place of the lid and the rear cover, and thereby it is possible to improve the waterproofness of the charger.

According to the electric vehicle of the third aspect of the present invention, since the notch portion corresponding to the lid body of the rear cover is provided on the side surface of the partition wall member provided around the charger, the structure of the rear cover is improved. When the lid is opened and the cord for connecting the external power source of the charger is extended from the opening of the rear cover and the cord for connecting the external power source is connected to the external power source to charge the battery by the charger, the charger is charged during charging. It is possible to dissipate the heat generated from the battery through the cutout portion, thereby improving the heat dissipation of the charger when charging the battery.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a rear cover, a partition wall member, a charger and a frame in the present embodiment to which the present invention is applied.

FIG. 2 is an explanatory diagram showing a mounting state of a charger with respect to a rear cover and a frame in the present embodiment.

FIG. 3 is an explanatory diagram showing a state in which a rear cover lid of the rear cover in this embodiment is opened.

FIG. 4 is a schematic diagram showing a configuration of an electric vehicle according to the present embodiment.

FIG. 5 is an explanatory diagram showing a state in which the periphery of the charger in this embodiment is surrounded by a partition wall member.

6A and 6B show a charger surrounded by a partition wall member in the present embodiment, FIG. 6A is a plan view, FIG. 6B is a right side view, and FIG. 6C is a front view.

FIG. 7 is an explanatory view showing a state in which the charger main body and the cord reel are separated from each other in the present embodiment.

FIG. 8 is an explanatory diagram showing a state in which the charger main body and the cord reel are connected in this embodiment.

FIG. 9 is an explanatory diagram showing a state where the charger shown in FIG. 8 is viewed from the right side surface.

FIG. 10 is an explanatory view showing an enlarged part of a screw mounting portion of the cord reel shown in FIG.

FIG. 11 is an explanatory diagram showing a state in which a part of a screw mounting portion of the cord reel shown in FIG. 8 is viewed from the rear of the vehicle body.

FIG. 12 is an explanatory view showing a state in which the rear cover lid in this embodiment is viewed from the right side of the vehicle body.

FIG. 13 shows an operation state of the rear cover body and the rear cover lid in the present embodiment, and FIG. 13 (a) is an explanatory view showing a cross section of the rear cover body when the rear cover lid is removed from the rear cover body with a part omitted. FIG. 6B is an explanatory view illustrating a cross section of the rear cover body when the rear cover lid is mounted, with a part omitted.

FIG. 14 is an explanatory view with parts omitted showing the charger mounting surface and the inclined surface of the frame in the present embodiment.

FIG. 15 is an explanatory view showing a state in which the charger is attached to the frame according to the present embodiment as viewed from the rear of the vehicle body with a part omitted.

FIG. 16 is an explanatory view showing a state in which the charger is attached to the frame according to the present embodiment as seen from the right side of the vehicle body, with a part omitted.

FIG. 17 is an explanatory diagram showing the arrangement of the left and right drive wheels, the charger inside the rear cover, the clutch lever, and the like as seen from the battery side in the present embodiment.

FIG. 18 is an explanatory diagram showing a rear cover lid in a modified example as viewed from the right side of the vehicle body.

FIG. 19 is an explanatory diagram showing a state in which a rear cover lid of a rear cover in a modified example is opened.

[Explanation of symbols]

1 Electric tricycle as an electric vehicle 13 charger 15 Rear cover 16 Frame as a car body 26 Charging cord as a cord for connecting external power supply 27 Wall member for charger partition as wall member for partition 32a, 32b, 33a. 33b Notch 34g, 34h recess 37 Rear cover lid as a lid 37c, 37d convex part 41 Inclined surface as the upper surface of the vehicle body

Claims (3)

(57) [Claims] 1. A battery, which is mounted on a vehicle body and serves as a power source for driving wheels, a charger for charging the battery, which has an external power source connecting cord detachably connected to an external power source, and a vehicle body including the charger. In an electric vehicle having a rear cover that covers a rear portion, a partition wall member is provided around the charger, and an opening for feeding the external power source connecting cord of the charger is provided in the rear cover. A lid that covers the opening is provided on the rear cover so as to be openable and closable, and the partition wall member is attached to the vehicle body so that a predetermined gap is formed between the bottom surface of the charger and the upper surface portion of the vehicle body. An electric vehicle which is fixed, wherein an upper surface portion of the vehicle body facing the bottom surface of the charger is an inclined surface having a downward slope toward the rear of the vehicle body. 2. The electric vehicle according to claim 1, wherein the attachment / detachment locations of the rear cover and the lid are hermetically sealed. 3. The electric vehicle according to claim 1, wherein a cutout portion is provided on a side surface of the partition wall member so as to correspond to a lid body of the rear cover.