[0001] The present subject matter relates to a vehicle. More particularly, the
present invention relates to a battery assembling cum mounting mechanism for the vehicle.
BACKGROUND
[0002] In many of the developing & under developed countries, a motor
vehicle particularly a three-wheeled automotive vehicle is a significant mode of public transportation. It is vastly used as a point to point mode of transport of both goods and persons from one place to other in rural as well as in urban areas. Different models of the three-wheeled vehicle using petrol or diesel are manufactured and sold in the domestic and overseas markets. In addition, there are variants that can run on CNG (Compressed Natural Gas) or LPG (Liquefied Petroleum Gas). They usually run on two stroke engines which are inherently more polluting than the regular four stroke engine.
[0003] Various alternative energy vehicles have been proposed to revamp a
large section of public transport to extend mileage and reduce emissions problems by replacing conventional fuel based engine operation to electric. Electric three-wheeled vehicle have become one of the preferred modes of transport between short distances and are operating in major urban and suburban areas.
[0004] Generally, the electric conversion of the conventional petrol-diesel
three-wheeled vehicle involves removing the entire internal combustion engine from the vehicle, installing the electric motor in its place, and also adding a large bank of batteries. In a known electric three-wheeled vehicle, a basic layout for an electric vehicle is tuned with different size motors, batteries, and a motor controller for each motor and batteries, wheels and suspension.
[0005] In an existing three-wheeled vehicle, at least one lead-acid battery is
disposed for delivering and receiving relatively high current densities, so as to meet the requirements of electric vehicle acceleration, regenerative braking, and fast charging. However, lead/acid batteries have a number of problems to

overcome, for example, lead acid batteries are larger and heavier than NiMH and Li-Ion batteries for the same amount of energy storage, thereby presenting packaging challenges and escalating weight-related costs as the battery pack increases in size and weight. At some point, the battery weight necessitates greater structural support for the vehicle, which means even greater vehicle weight, all of which increases cost and the amount of energy needed to move the vehicle, and fitting the battery pack within a vehicle becomes difficult.
[0006] Although an electric three-wheeled vehicle has numerous advantages
over conventional petrol and diesel three-wheeled vehicle, however, it is desirable that the electric three-wheeled vehicle should be cost effective, increases fuel economy with substantial reduction in emissions and simultaneously facilitates better performance and aesthetic modifications with key design features. Further, the assembling of components for example batteries on the vehicle should facilitate simple, light and easy process which should further impart quick, easy handling and replacement at charging stations.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] The detailed description is described with reference to the
accompanying figures. The same numbers are used throughout the drawings to reference like features and components.
[0008] Fig. 1. shows a side view of a three-wheeled vehicle according to the
present invention.
[0009] Fig. 2. illustrates a perspective view of the three-wheeled vehicle with
at least one battery casing with at least one battery contained therein being disposed in a driver compartment and a rear compartment of the vehicle.
[00010] Fig. 3. shows a perspective view of the three-wheeled vehicle
illustrating at least one rail member being fixedly attached to at least a portion of said floor panel in a driver’s compartment and at least a portion of cross-member in a rear compartment of the vehicle.

[00011] Fig.4. illustrates a perspective view of said at least one battery casing
with said at least one battery contained therein, being detachably secured on said at least one rail member through at least one locking system.
[00012] Fig.5. shows a perspective view of the three-wheeled vehicle
illustrating said at least one battery being contained in said at least one battery casing.
[00013] Fig.6. shows a perspective view of a charging station with one or
more wiring harness and a charged provided therein.
DETAILEDDESCRIPTION
[00014] Electric vehicles are essentially zero-emission vehicles, which is to
say that they are non-polluting at the power consumption point. Generally, electric vehicles have employed lead-acid batteries that function primarily to supply power to the electric motor. However, lead-acid batteries are larger and heavier and thereby presenting packaging challenges and escalating weight-related costs as the battery casing increases in size and weight.
[00015] With the above objectives in view, the present invention describes an
electric vehicle with an alternative to lead-acid batteries, e.g. lithium-ion (“Li-ion”) batteries used for electric vehicle applications. Additionally, the present invention relates to an improved, simple and easy battery assembling mechanism for disposing at least one Li-ion battery on said three-wheeled vehicle which imparts easy handling and replacement of the vehicle battery at a charging station.
[00016] According to one embodiment of the present invention, the
three-wheeled vehicle comprises of a frame assembly having a modified semi-monocoque structure. In one embodiment, said semi-monocoque structure includes tubular ladder like frame assembly and said tubular ladder like frame comprises of a pair of side rails and one or more cross-members structurally interconnecting said pair of side rails such that one or more cross-members extend in opposite directions from said pair of side rails. As per one embodiment of the present invention, the three-wheeled vehicle includes two compartments, referred

to as a driver compartment and a passenger compartment being supported on the frame assembly, a floor panel rigidly secured to at least a portion of the vehicle frame assembly to provide said vehicle frame assembly with the semi-monocoque structure, a roof, at least one pillar structure including a first pillar structure and a second pillar structure projecting upwardly from opposite sides of said floor panel, a partition wall extending transversely between said first pillar structure and said second pillar structure and separates said driver compartment from said passenger compartment. The passenger compartment comprises at least one passenger seat disposed therein. In one embodiment, a rear compartment along with the passenger compartment of the vehicle is supported on a pair of rear wheels. As per one embodiment of the present invention, said three-wheeled vehicle comprises an electric motor configured to transfer a driving power to said pair of rear wheels, at least one battery for supplying an electric power to the electric motor, at least one battery casing configured to house said at least the battery and a battery assembling mechanism adapted for disposing said at least one battery casing on said vehicle. In one embodiment of the present invention, said battery assembling mechanism for the three-wheeled vehicle comprises at least one rail member being fixedly attached to at least a portion of the floor panel of the vehicle through welding. As per one embodiment, said at least one rail member includes a plurality of the ball bearings adapted fixedly attached to at least a portion therein. Further, in one embodiment, said at least one locking system are fixedly secured to at least a portion of the floor panel to detachably assemble at least one battery casing on said at least one rail member. In another embodiment of the present invention, said at least one rail member is fixedly attached to said cross-members of the vehicle in a rear portion of the vehicle. In another embodiment, said at least one rail member are configured to assemble said at least one battery casing with at least one battery contained therein on said rear portion of the vehicle.
[00017] In one embodiment, said at least one battery casing comprises a cover
member and a housing member. As per one embodiment, said at least one battery casing includes at least one handling member being fixedly secured to at least two

sides of said at least one battery casing. In one embodiment, the cover member is hingedly attached to said housing member of said at least one battery casing and is adapted for manually opening and closing operation during replacing or charging process for the battery at a vehicle charging station. As per one embodiment, at least one lock assembly is fixedly attached to said at least one battery casing. As per one embodiment, said at least one lock assembly includes at least one fastener receiving member being fixedly attached to at least a portion of said housing member and an inverted U-shaped bracket member being fixedly attached to at least a portion of the cover member. As per one embodiment, said inverted U-shaped bracket member includes at least one fastener receiving hole configured for locking said cover member to the housing member and hence securing said at least one lithium ion battery in said at least one battery casing.
[00018] The present invention describes a driver seat assembly disposed in
the vehicle driver compartment and said at least one passenger seat assembly disposed in a passenger compartment of a three –wheeled. More specifically, the present subject matter discloses the improved battery assembling mechanism in driver compartment of the electric three-wheeled vehicle. In one embodiment of the present invention, said at least one battery casing with said at least one lithium-ion battery is disposed below said driver seat assembly. As per one embodiment, the driver seat assembly is hingedly attached to at least a portion of the partition wall through at least one bracket member. In another embodiment, said driver seat assembly is completely removable to access said at least one battery casing. Thereby, facilitating an ease of accessing said at least one battery casing during replacement or charging. As per one embodiment, said at least one locking system is adapted for detachably locking said at least one battery casing to said vehicle. In one embodiment, said at least one locking system of said at least one battery casing to said at least one rail member includes a latch member, a hook structure and a lever member. As per one embodiment, said latch member is adapted to be coupled to a hook structure. In one embodiment, the latch member is connected to the lever member with a free end for engagement with the hook structure. The latch member is connected to the hook structure and is shiftable to

shift the latch member between open and closed positions of the battery casing. In one embodiment, said at least one locking system for assembling said at least one battery casing on said vehicle is a toggle-latch assembly. In one embodiment, at least one hook member of said at least one locking system is attached to said battery casing. In one embodiment, said at least one hook member is attached to at least a portion of the floor panel of the vehicle. In another embodiment, said at least one hook member is attached to at least a portion of said at least one cross-members of the vehicle frame assembly in the vehicle rear portion.
[00019] The present invention provides an electric three-wheeled vehicle with
an improved battery mounting cum assembling mechanism. In one embodiment, said battery assembling mechanism facilitates in easy and simple arrangement of said at least one lithium battery on said at least a portion of the vehicle. In one embodiment, said at least one battery casing with said at least one battery can be disposed below said driver seat assembly. In another embodiment, said at least one battery casing with said at least one battery can be disposed in a rear compartment of the vehicle. As per the present invention, said battery assembly mechanism comprises said at least one rail member being fixedly attached to said at least a portion of the floor panel for assembling said at least one battery casing therein. The rail enables providing substantial gap between the battery case bottom & the vehicle floor surface. Thus, any machine like a fork lift can quickly enter, support the case from down, slide out the casing & take it away for charging or swapping. Such a construction of the rail enhances the ease of handling.
[00020] In one implementation, the present invention provides an improved
battery assembling mechanism for assembling said at least one battery casing with said at least one battery contained therein below the driver seat assembly in the driver compartment of the three-wheeled vehicle.
[00021] The present subject also provides an improved battery assembling
mechanism for assembling said at least one battery casing with said at least one battery contained therein in the rear compartment of the vehicle.

[00022] As per one embodiment of the present invention, said at least one
battery casing includes said cover member to provide easy access, removal and replacement of said at least one battery from said housing member during charging process at the vehicle charging station. In one embodiment, said at least one battery being removed are placed on a charger, provided in at least one charging system at the charging station and are placed back into said at least one battery casing.
[00023] It is advantageous to provide an improved and simple battery
assembling mechanism for the electric three-wheeled vehicle. As per one embodiment of the present invention, said battery assembling mechanism facilitates in a simple, reliable and less time-consuming battery loading mechanism on the three-wheeled vehicle.
[00024] Exemplary embodiments detailing features of the three-wheeled
vehicle, in accordance with the present invention will be described hereunder. The embodiments described herein apply to an electric three-wheeled vehicle powered by a drive motor. However, the present invention is not restricted in its application and is also applicable to vehicles employing an internal combustion engine or either by an internal combustion engine or the drive motor selectively or by the drive motor alone.
[00025] The three-wheeled automotive vehicle is mainly, but not solely, used
as a passenger carrier. It is to be noted that “front” and “rear”, and “left” and “right” wherever referred to in the ensuing description, refer to front and rear, and left and right directions as seen in a state of being seated on a seat of the vehicle and looking forward. Furthermore, a longitudinal axis refers to a front to rear axis relative to the vehicle, while a lateral axis refers generally to a side to side, or left to right axis relative to the vehicle. Various other features of the three-wheeled vehicle according to the present subject matter here will be discernible from the following further description thereof, set out hereunder.
[00026] Fig. 1 shows a schematic side perspective view of an exemplary
three-wheeled vehicle (1) (hereinafter “vehicle’). As per one embodiment, the

vehicle, referenced by the numeral (1), powered by an electric motor (not shown). The vehicle (1) can be used as a passenger carrier vehicle or a load carrier vehicle. It has a front cowl (6) supporting a windscreen (3). As per one embodiment, the lower portion of the front cowl (6) is connected to a front wheel (8) with a wheel cover (7) disposed in between. A pair of left and right front light assembly (5) disposed on the front cowl (6) of the vehicle (1). A handlebar assembly (4) is present behind the front cowl (6) which is used to operate the vehicle (1). As per one embodiment of the present invention, a floor panel (12) is extending from the bottom portion of the front cowl (6) to the rearward direction of the vehicle (1), supported by a vehicle frame assembly (200) (shown in Fig.2, Fig.3). In one embodiment, a bottom portion of a body panel (17) is connected to the posterior portion of the floor panel (12). A hood (2) connects a top portion of the front cowl (6) and a top portion of the body panel (17). In one embodiment, the vehicle (1) is divided into two compartments along the line X-Y, a driver compartment (D) having a driver’s seat assembly (9) in a front portion (F) of the vehicle (1) and a passenger compartment (P) having at least one passenger seat assembly (13) in a rear portion of the vehicle (1). In one embodiment, said pair of rear wheels (14) are connected to a swing arm through one or more rear suspension(s). The rear suspension includes a shock absorber and a suspension spring unit (15) mounted to the vehicle frame assembly (200) (shown in Fig.2). Further, in one embodiment, said at least one pillar structure (11L), (11R) including a left pillar structure (11L) and a right second pillar structure (11R) (shown in Fig.2) projects upwardly from opposite sides of said floor panel (12) and a partition wall (19) extends transversely between said left pillar structure (11L) and a right second pillar structure (11R) (shown in Fig.2) and further separates said driver compartment (D) from said passenger compartment (P). As per one embodiment, a charging slot (16) is provided on at least one side of a body panel (17) of the said vehicle (10), and positioned above said pair of rear wheels (14) of said vehicle (10).
[00027] Further in Fig. 1, referring to one embodiment of the present
invention, a rear compartment (10) along with the passenger compartment (P) of the vehicle (1) is supported on a pair of rear wheels (14) located on either side of

the longitudinal axis (AA) of the vehicle (1). According to one embodiment of the present invention, said at least one battery casing (100) with at least one battery (500) (shown in Fig.5) contained therein is disposed below said driver seat assembly (9).
[00028] Fig. 2. illustrates a perspective view of the vehicle (1) illustrating said
at least one battery casing (100) with at least one battery (500) (shown in Fig.5) contained therein. As per one embodiment of the present invention, the vehicle (1) includes the driver compartment (D) and the passenger compartment (P) being supported on the frame assembly (200) of the vehicle (1). In one embodiment, said at least one pillar structure (11L), (11R) including the left pillar structure (11L) and the right pillar structure (11R) projects upwardly from opposite sides of said floor panel (12). According to one embodiment of the present invention, said vehicle (1) comprises of said frame assembly (200) having a semi-monocoque structure. The floor panel (12) is rigidly secured to said frame assembly (200) and extends along longitudinal axis (AA) of said vehicle (1). In one embodiment, the driver’s seat assembly (9) is hingedly attached to said at least a portion of the partition wall (19) through at least one bracket member (18). In another embodiment, said driver’s seat assembly is completely removable to access said at least one battery casing (100).
[00029] Further in Fig.2, as per one embodiment of the present invention, said
pair of rear wheels (19) is pivotally coupled to the frame assembly (200). In one embodiment, the rear portion (R) of the vehicle frame assembly (200) includes a pair of side rails (201) laterally spaced by one or more cross-members (202) [shown in Fig.3] along the vehicle longitudinal axis. As per one embodiment of the present invention, said at least one passenger seat assembly (19) and the rear compartment (10) (shown in Fig.1) are disposed on said rear portion of the vehicle frame assembly (200). As per one embodiment, said at least one battery casing (100) with said at least one battery (500) contained therein is disposed in said driver compartment (D) of the vehicle (1). In another embodiment, said at least one battery casing (100) with said at least one battery (500) contained therein is

disposed on said one or more cross members (202) of the vehicle frame assembly (200).
[00030] Fig. 3. shows a perspective view of the vehicle (1) illustrating a
mounting cum assembling mechanism (300), for example, a battery mounting cum assembling mechanism (300). As per one embodiment, the lower portion of the front cowl (6) of the vehicle (1) is connected to the front wheel (8) with the wheel cover (7) disposed in between. As per one embodiment of the present invention, the floor panel (12) is extending from the bottom portion of the front cowl (6) to the rearward direction of the vehicle (1), supported by the vehicle frame assembly (200). As per one embodiment of the present invention, the frame assembly (200) for the vehicle (1) includes said pair of side rails (201) and said one or more cross members (202). In one embodiment, said at least one pillar structure (11L), (11R) including the left pillar structure (11L) and the second pillar structure (11R) projects upwardly from opposite sides of said floor panel (12). In one embodiment, the partition wall (19) extends transversely between said left pillar structure (11L) and the second pillar structure (11R) and separates said driver compartment (D) from said passenger compartment (P).
[00031] Further in Fig.3, as per one embodiment of the present invention, said
vehicle (1) comprises the electric motor configured to transfer a driving power to said pair of rear wheels (14), at least one battery (500) (shown in Fig.5) for supplying an electric power to the electric motor and said at least one battery casing (100) (shown in Fig.4 and Fig.5) configured to house said at least one battery (500). Referring to one embodiment of the present invention, said vehicle (1) comprises the battery mounting cum assembling mechanism (300) adapted for disposing said at least one battery casing (100) on said at least a portion of said floor panel (12) below the driver seat assembly (9) in the driver compartment (D) of the vehicle (1). In another embodiment of the present invention, the battery mounting cum assembling mechanism (300) adapted for disposing said at least one battery casing (100) (shown in Fig.4 and Fig.5) on said one or more cross-members (202) of the vehicle frame assembly (200) in the rear compartment

(10) of the vehicle (1). As per one embodiment of the present invention, said battery mounting cum assembling mechanism (300) includes said at least one rail member (301), (302) (shown in Fig.4) being fixedly attached to said at least a portion of said floor plane (12) of the vehicle (1) and extends along said vehicle transverse axis. In another embodiment of the present invention, said battery mounting cum assembling mechanism (300) for said vehicle (1) comprises said at least one rail member (301), (302) being fixedly attached to said one or more cross-members (202) of the vehicle frame assembly (200). As per present invention, said at least one rail member (301), (302) comprises a plurality of bearings (300a) for retaining said at least one battery casing (100) to said at least one rail member (301), (302). In an implementation, the rail member (301), (302) raises the battery (500) substantially above the floor surface (12) thereby enabling quick & easy access for any battery changing machine e.g. a fork lift (not shown in the figure) to quickly support the battery casing (100) from the bottom side, slide it in lateral direction of the vehicle & take it away either for charging or swapping with for instance, charged batteries. As per an embodiment, the bearings can be ball bearing type.
[00032] Fig.4. is a perspective view of said at least one battery casing (100)
with said at least one battery (500) (shown in Fig.5) assembled on said at least one rail member (301), (302) through the battery mounting cum assembling mechanism (300). As per one embodiment, said battery mounting cum assembling mechanism (300) for said vehicle (1) comprises said at least one rail member (301), (302) including a first rail member (301) and a second rail member (302). The first rail member (301) is disposed in contact with said second rail member (302) to continuously urge said first rail (301) towards at least a portion of each of a pair of left and right side walls (104L), (104R) of said at least one battery casing (100) to maintain constant contact therebetween during movement of said at least one battery casing (100). In one embodiment, said at least one rail member (301), (302) comprises the plurality of bearings (300a) (shown in Fig.3) for retaining said at least one battery casing (100) to said at least one rail member (301), (302). As per one embodiment, said at least one locking system (400) is adapted for detachably

locking said at least one battery casing (100) to said vehicle (1). Referring to one embodiment, said at least one locking system (400) for assembling said at least one battery casing (100) to said at least one rail member (301), (302) includes a hook structure (400a), a lever member (400b) and a latch member (400c). As per one embodiment, said latch member (400c) is adapted to be coupled to the hook structure (400a). In one embodiment, the latch member (400c) is connected to the lever member (400b) with a free end for engagement with the hook structure (400a). The latch member (400c) is connected to the hook structure (400a) and is shiftable to shift the latch member (400c) between open and closed positions of said at least one battery casing (100). In one embodiment, said at least one locking system for assembling said at least one battery casing (100) with said at least one battery (500) contained therein is a toggle-latch assembly. In one embodiment, said hook structure (400a) of said at least one locking system (400) is attached to said at least one battery casing (100). In another embodiment, said hook structure (400a) is attached to said at least a portion of the floor panel (12) of the vehicle (1). In another embodiment, with said hook structure (400a) is provided on said at least a portion of said at least one battery casing (100) with said at least one battery (500).
[00033] Further in Fig.4, as per one embodiment, said at least one battery
casing (100) includes the cover member (101) and the housing member (103). As per one embodiment, said housing member (103) is adapted for housing said at least one battery. Further, said at least one battery casing (100) includes said at least one handling member (103) being fixedly secured to at least a portion of said hosuing member (104) on at least two sides of said at least one battery casing (100). As per one embodiment, said at least one lock assembly (102) is configured for securing said at least one battery (500) (shown Fig.5) in said at least one battery casing (100).
[00034] Fig.5. shows a perspective view of said at least one battery casing
(100) illustrating housing of said at least one lithium-ion battery (500) in said housing member (104) thereof. As per one embodiment, said at least one locking

system (400) is adapted for detachably locking said at least one battery casing (100) to said vehicle (1). As per the present invention, said at least one locking system (400) is the toggle-latch assembly. In one embodiment, said at least one lock assembly (102) is configured for securing said at least one battery (500) (shown Fig.5) in said at least one battery casing (100). As per one embodiment, said at least one lock assembly (102) includes an inverted U-shaped bracket member (102a) with at least one fastener (102c) being fixedly attached to at least a portion of said cover member (101) of said at least one battery casing (100). Further, said at least one lock assembly comprises the fastener receiving member (102b) being fixedly attached to at least a portion of said cover member (104). As per one embodiment, at least one fastener receiving hole in said fastener receiving member (102b) is configured for locking said cover member (101) to the housing member (104) of said at least one battery casing (100) for securing said at least one lithium ion battery (500) in said at least one battery casing (100). In one embodiment, said cover member (101) is hingedly attached to said housing member (104) and is adapted for manually opening and closing operating during replacing or charging process for said at least one lithium ion battery (500) battery at the charging station (501) (shown in Fig.6). As per another embodiment of the present invention, the casing (100) need not be restricted to house the battery (500), and it can, for example, accommodate any other forms of energy devices like fuel cell, etc.
[00035] Fig.6 is a perspective view of the charging station (501) adapted for
charging said at least one battery (500) being disposed on said vehicle (1). As per one embodiment, in a charging process of replacing a discharged said at least one battery (500) from the vehicle (1) includes a trolley (not shown) with wheels operatively connected to a driving mechanism. In one embodiment, the charging or replacement process for said at least one battery (500) comprises a battery tray mounted atop the trolley via a hydraulic cylinder, which functions to move the moving battery tray upwardly and downwardly. Further, said at least one charged battery (500) is removably disposed atop the moving battery tray.

[00036] Further, in Fig.6, as per one embodiment, said charging process of
replacing said at least one discharged battery (500) in the vehicle (1) allows the trolley to deliver said at least one charged battery (500) from a charging station (501) to the vehicle (1). In one embodiment, the trolley can carry the said at least one discharged battery (500) to the charging station (501) for recharging. As per one embodiment, said charging station includes a door panel (502) for securing a plurality of wiring harness (503) in said charging station (501) when not in use and hence prevents said plurality of wiring harness (503) from rain, dust and wind. Further, said charging station (501) comprises at least one actuator switch (505) indicating whether said at least one battery (500) is completely charged or not and a charger (504) is disposed in said charging station for charging said at least one battery (500) through said plurality of wiring harness (503).
[00037] Advantageously, one embodiment of the present invention describes
an improved battery mounting cum assembling mechanism for the three-wheeled vehicle. As per one embodiment, said improved battery assembling mechanism for disposing said at least one battery on the vehicle includes a simple and rapid-assembly battery structure with said at least one rail member and said at least one locking system being provided on said at least a portion of the vehicle. Further, in one embodiment, said improved battery assembly mechanism imparts a simple structure and additionally facilitates in easy replacement and handling of said at least one battery during charging process at charging station. Furthermore, said battery assembling mechanism with said at least one locking system in the form of the toggle latch system provides a detachable locking of said at least one battery casing to said vehicle in an effective and easy manner.
[00038] Improvements and modifications may be incorporated herein without
deviating from the scope of the invention.

We Claim:
1. A three - wheeled vehicle (1), said vehicle (1) comprising:
a frame assembly (200) extending along a vehicle longitudinal direction
(AA);
a front wheel (8) and a pair of rear wheel (14) supported by the frame
assembly (200);
an electric motor configured to transfer a driving power to said pair of rear
wheels (14);
at least one energy storage device (500) for supplying an electric power to
the electric motor;
at least one casing (100) configured to house at least one energy storage
device (500); and
a mounting cum assembling mechanism (300) adapted for disposing said
at least one casing (100) on said vehicle (1);
characterized in that, said mounting cum assembling mechanism (300)
comprises at least one rail member (301), (302) being fixedly attached to at
least a portion of said vehicle (1) and extending along said vehicle
transverse axis; and wherein said at least one rail member (301), (302)
comprises a first rail member (301) and a second rail member (302); and
wherein said first rail member (301) being disposed in contact with said
second rail member (302).
2. The three-wheeled vehicle (1) as claimed in claim 1, wherein said at least one rail member (301), (302) comprises a plurality of bearings (300a) for retaining said at least one casing (100) to said at least one rail member (301), (302), and wherein said at least one casing (100) is a battery casing.
3. The three-wheeled vehicle (1) as claimed in claim 1, wherein at least one locking system (400) is adapted for detachably locking said at least one casing (100) to said vehicle (1).
4. The three-wheeled vehicle (1) as claimed in claim 3, wherein said at least one locking system (400) is a toggle- latch assembly, and said at least one

locking system (400) includes a hook structure (400a), a lever member (400b), and a latch member (400c).
5. The three-wheeled vehicle (1) as claimed in claim 4, wherein said latch member (400c) is adapted to be coupled to a hook structure (400a).
6. The three-wheeled vehicle (1) as claimed in claim 1, wherein said at least one casing (100) with said at least one energy storage device (500) housed therein is disposed below said driver’s seat assembly (9) in said driver’s compartment (D), and wherein said at least one energy storage device (500) is a battery.
7. The three-wheeled vehicle (1) as claimed in claim 1, wherein said at least one casing (100) with said at least one energy storage device (500) housed therein is disposed on said vehicle frame assembly (200).
8. The three-wheeled vehicle (1) as claimed in claim 1, wherein said second rail member (302) continuously urge said first rail member (301) towards said at least one casing (100) to maintain constant contact therebetween during movement of said at least one battery casing (100).
9. A mounting cum assembling mechanism (300) for a three-wheeled vehicle (1) comprises: at least one rail member (301), (302) being fixedly attached to at least a portion of said vehicle (1) and extending along said vehicle transverse axis; and wherein said at least one rail member (301), (302) comprises a first rail member (301) and a second rail member (302); and wherein said first rail member (301) being disposed in contact with said second rail member (302), said at least one rail member (301), (302) disposed below said at least one casing (100) enabling maintaining substantially gap between the casing (100) and a floor panel (12) of said vehicle (1).
10. A three - wheeled vehicle (1), said vehicle (1) comprising:
a frame assembly (200) extending along a vehicle longitudinal direction (AA), said frame assembly (200) including a driver’s compartment (D); a front wheel (8) and a pair of rear wheel (14) supported by the frame assembly (200);

a driver’s compartment (D) and a passenger compartment (P) being
supported on the frame assembly (200);
a floor panel (12) rigidly secured to at least a portion of said frame
assembly (200); and
at least one rail member (301), (302) fixedly secured to at least a portion of
said frame assembly (200) in the driver’s compartment (D).