The present invention relates to vehicle, and more particularly, to a frame
of a two-wheeled vehicle. Embodiment of the disclosure disclose a battery case for accommodating a battery module of a two-wheeled electric vehicle.
BACKGROUND
[0002] Vehicle, particularly electric vehicle configured to be ridden such as
motorcycle, comprises a body frame to support various components such as a drive motor, suspension unit, steering mechanism, front ground engaging member and rear ground engaging member, vehicle seat and the like. The body frame is also configured to support a battery module along other components. The battery module may be electrically coupled to the drive motor and a charger unit, due to which the battery module may be required to be positioned proximal thereto.
[0003] Conventionally, the battery modules in the electric vehicle are located in
position of conventional engines, which is proximal to a front fork of the vehicle. Such location of the battery module may lead to displacement of centre of gravity due to weight and profile of the battery module, which may cause imbalance in the vehicle adding onus on a rider or operator to balance and maneuver the vehicle simultaneously. Also, to increase travel of the vehicle, larger and bulkier battery modules may be installed in the vehicle, which may even add additional load on such imbalances in the vehicle.
[0004] To cater problems of imbalance in weight and/or maintaining centre of
gravity of the vehicle together with need of compact battery module packaging in vehicle, orientation of the battery module in the conventional vehicles has been along a vertical or normal plane relative to a horizontal plane of vehicle body frame. Such vertical positioning and/or orientation of the battery module may result in reduced ground clearance of the vehicle.

[0005] Further, due to location of the battery module in the vehicle, performing
services and maintenance such as removal and/or replacement of the battery module or associated components may be cumbersome as limited space is available for accessing the battery module and the associated components. Specifically, as accessing of such battery module may not be feasible in view of space constraints, it may not be feasible to render the battery module to be modular and/or swappable in the vehicle. It is also not entirely satisfactory for producing an easily detachable battery system for a vehicle, more particularly, if the vehicle requires larger size battery without any major modification in the body frame of conventional known vehicle.
SUMMARY
[0006] In one non-limiting embodiment of the present invention a two-wheeled
electric vehicle is disclosed. The vehicle includes a body frame which includes having a head tube and a down frame and a main frame extending downward and rearward from the head tube. The vehicle further includes a battery case which is located in a space defined between the main frame and the down frame, wherein a major axis of the battery case, in a side view of the two-wheeled electric vehicle overlaps the head tube. Such positioning and/or orientation of the battery case allows the battery module to be secured within the vehicle, with which problems associated with centre of gravity and ground clearance is addressed. Also, as positioning and/or orientation of the battery module is relative to the head tube, sufficient space and provision are provided to allow swapping of the battery module and without compromising in ground clearance of the vehicle.
[0007] In an embodiment, the battery case includes a support frame which
extends downward and rearward from the down frame of the body frame. Battery case further includes a base member, connectable to the support frame and configured to support a battery module. The base member includes at least one base flange and at least one support flange. The at least one base flange is configured to extend along a

frame. The at least one support flange is configured to extend from the support frame and connectable proximal to the down frame. With the base member and the support frame, the battery case is configured to provide structural support for accommodating the battery module in the vehicle, without having to compromise on balance and centre of gravity of the vehicle. Also, due to provision of the battery case, ground clearance is improved and not compromised.
[0008] In an embodiment, the battery case includes at least one of a left side
cover and a right side cover, each are connectable to the base member. At least one of the left side and the right side covers is pivotable relative to the base member. Further, one of the left side cover and the right side cover is defined with a securing portion which extends between an upper portion of the main frame and the down frame to support the battery module. Such pivotal action and the securing portion of one of the left side cover and the right side cover provides access to the battery module, enabling replacement and/or maintenance of the battery module.
[0009] In an embodiment, the at least one base flange is connectable to a cross
frame structure which is connected to the downward portion of the main frame, to mount the battery case within the space defined between the main frame and the down frame.
[00010] In an embodiment, the battery case includes a locking unit which is coupled to the main frame, where the locking unit is configured to lock at least one of the left side cover and the right side cover to the base member to secure the battery module in the battery case. The locking unit includes a receiver member and a locking member. The receiver member is coupled to the main frame and one of the left side cover and the right side cover, while the locking member is defined on other of the main frame and one of the left side cover and the right side cover, the locking member is connectable to the receiver member. With such configuration, the battery module is locked within the battery case and may be accessible only after operating the locking unit, thereby indicating that the battery module is unaffected due to vibration of the vehicle.

[00011] In an embodiment, the vehicle includes a pair of seat rails extending rearwardly from the upper portion of the main frame. The pair of seat rails is configured to detachably accommodate a seat of the two-wheeled electric vehicle. The vehicle further includes a cover panel which is displaceably accommodated on the upper portion of the main frame. The locking unit is accessible on operating at least one of the seat and the cover panel from the vehicle body frame to access the battery module in the battery case.
[00012] In an embodiment, at least one of the left side cover and the right side cover is defined with a securing portion which extends between an upper portion of the main frame and the down frame to support the battery module.
BRIEF DESCRIPTION OF DRAWINGS
[00013] The invention itself, together with further features and attended advantages, will become apparent from consideration of the following detailed description, taken in conjunction with the accompanying drawings. One or more embodiments of the present invention are now described, by way of example only wherein like reference numerals represent like elements and in which:
[00014] Figures la and lb illustrate perspective view and a side view of an exemplary two wheeled electric vehicle, according to an embodiment of the present invention;
[00015] Figures 2a and 2b illustrate perspective views of a body frame of the two wheeled electric vehicle of Figure la with battery case, according to an embodiment of the present invention;
[00016] Figure 3 illustrate a perspective view of the battery case seated on a power unit of the two wheeled electric vehicle, according to an embodiment of the present invention;

[00017] Figure 4a illustrates a perspective view of the exemplary two wheeled vehicle with a seat in a removed condition, according to an embodiment of the present invention;
[00018] Figure 4b illustrates a perspective view of the vehicle of Figure 4a, with a cover panel and a battery case operated to an open condition;
[00019] Figure 4c illustrates a perspective view of the vehicle of Figure 4b, with a battery module dislodged from the battery case;
[00020] Figure 4d illustrates a perspective view of the vehicle of Figure 4c, with the battery module disengaged from the battery case; and
[00021] Figure 4e illustrates a perspective view of the vehicle of Figure 4d, without the battery module in the battery case.
[00022] The drawings referred in this description are not to be understood as being drawn to scale except if specifically noted, and such drawings are only exemplary in nature.
DETAILED DESCRIPTION
[00023] While the invention is susceptible to various modifications and alternative forms, an embodiment thereof has been shown by way of example in the drawings and will be described here below. It should be understood, however that it is not intended to limit the invention to the particular forms disclosed, but on the contrary, the invention is to cover all modifications, equivalents, and alternative falling within the scope of the invention.
[00024] The term "comprises", comprising, or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a setup, structure or method that comprises a list of components or steps does not include only those components or steps but may include other components or steps not expressly listed or inherent to such setup or structure or method. In other words, one or more elements in a system

or apparatus proceeded by "comprises... a" does not, without more constraints, preclude the existence of other elements or additional elements in the system or apparatus.
[00025] For better understanding of this invention, reference would now be made to the embodiments illustrated in the accompanying Figures and description here below, further, in the following Figures, the same reference numerals are used to identify the same components in various views.
[00026] While the present invention is illustrated in the context of a vehicle, however, a battery case and aspects and features thereof. The term "vehicle" is any vehicle capable of being driven by electric motor or electric driving means. The terms "vehicle", "two wheeled vehicle", "saddle type vehicle" and "motorcycle" have been interchangeably used throughout the description.
[00027] The terms "front / forward", "rear / rearward / back / backward", "up / upper / top", "down / lower / lower ward / downward, bottom", "left / leftward", "right / rightward" used therein represents the directions as seen from a vehicle driver sitting astride and these directions are referred by arrows Fr, Rr, U, Lr, L, R in the drawing Figures.
[00028] In an aspect of the present invention a two-wheeled electric vehicle is disclosed. The vehicle includes a body frame which, among other components includes a head tube and a down frame and a main frame extending downward and rearward from the head tube. The vehicle further includes a battery case which is located in a space defined between the main frame and the down frame, wherein a major axis of the battery case, in a side view of the two-wheeled electric vehicle overlaps the head tube. Such positioning and location of the battery case enables securing of at least one battery module therein, which is not affected from vibration of the vehicle and that electrical connection between the battery module and the vehicle is unaffected.

[00029] Referring to Figures la and lb, a two-wheeled electric vehicle (100) according to an embodiment of the present invention is illustrated. The two-wheeled electric vehicle (100) referred to herein, embodies a two wheeled motorcycle and interchangeably referred to "the vehicle (100)" or "the electric vehicle (100)". Alternatively, the vehicle (100) may embody any other ridden vehicles such as saddle type vehicle, All-Terrain Vehicles (ATV) and the like, without limiting the scope of the invention.
[00030] The vehicle (100) comprises one or more body parts, such as a body
frame (200), a handlebar (109), a driven wheel (103) (or front wheel), a drive wheel (102) (or rear wheel), a power unit (104), a headlight (108), and at least one cover panel (107). The body frame (200) supports the power unit (104) including, but not limited to, a drive motor (104a) and a transmission unit (105) coupled to the drive motor (104a). In the illustrative embodiment, the power unit (104) is positioned in middle portion of the vehicle (100). The drive motor (104a) of the power unit (104) provides power required to drive the rear wheel (102) of the vehicle (100). Alternatively, the drive motor (104a) may provide necessary power to the drive the front wheel (103), or both the front wheel (103) and the rear wheel (102) simultaneously, without limiting the scope of the invention. The rear wheel (102) is linked to the drive motor (104a) through the transmission unit (105). The drive motor (104a) is electrically coupled to a battery module (106), to receive electric power for selective operation and driving at least one of the both the front wheel (103) and the rear wheel (102).
[00031] Referring to Figures la and 2a, the body frame (200) of the vehicle (100) includes a head tube (201), a down frame (202) and a main frame (203). The down frame (202) and the main frame (203) extend downward and rearward from the head tube (201) to support other components including, but not limited to, a seat (101), the power unit (104), the battery module (106), the at least one cover panel (107), and to structurally connect the front wheel (103) and the rear wheel (102), along with other components of the vehicle (100). The head tube (201) is configured to support a

steering mechanism having the handlebar (109) of the vehicle (100). In the illustrated example, the body frame (200) having a specific construction is disclosed. Alternatively, the body frame (200) may have different body frame (200) constructions generally associated with motorcycles, without limiting the scope of the invention. In an embodiment, one end of the down frame (202) is connected to the head tube (201) and located substantially below an end of the main frame (203).
[00032] The head tube (201), the down frame (202) and the main frame (203) are
integrally joined with a number of components and members to form the body frame (200). The main frame (203), in particular, extends downward and rearward in the longitudinal direction of the vehicle (100) to support the at least one cover panel (107). The down frame (202) extends downward and rearward in the longitudinal direction of the vehicle (100) from the head tube (201) and is disposed below the main frame (203), in particular, to extend at an angle with respect to the main frame (203) and the head tube (201).
[00033] The down frame (202) extends at an angle to an upper portion (204) of a
front fork (110) of the vehicle (100), where the front fork (110) extends through and along the head tube (201), as best in Figure la. An end of the down frame (202), which is away from the head tube (201), is configured to support a battery case (300) for accommodating and securing the battery module (106) of the vehicle (100) (shown in Figure la). The battery case (300), as best seen in Figures la and 2b, includes a support frame (309) and a base member (301), where the base member (301) is connectable to the support frame (309). The support frame (309) of the battery case (300) is structured to extend from the end of the down frame (202) in a downward and rearward direction of the body frame (200). The support frame (309), as seen in Figure 2b, is oriented relative to the down frame (202) such that, an included angle is defined between an axial axis (A-A') of the support frame (309) and an axial axis (B-B') of the down frame (202) [shown in Figure, la]. Further, orientation of the support frame (309) is towards the rear wheel (102) (i.e., away from the front wheel when viewed in the side view of

the vehicle (100)) of the vehicle (100), which allows in balancing of centre of gravity of the vehicle (100) between the seat (101) and the head tube (201).
[00034] The main frame (203) supports a pair of seat rails (206) which extend
rearwardly from an upper portion (204) of the main frame (203). The pair of seat rails (206) are configured to detachably accommodate the seat (101) of the vehicle (100). Further, the upper portion (204) of the main frame (203) is adapted to receive and accommodate the at least one cover panel (107), where the at least one cover panel (107) is configured to displaceably (i.e., pivotable relative to the head tube (201)) secured on the upper portion (204) of the main frame (203). The at least one cover panel (107) is configured to enclose at least a portion of the battery case (300), when accommodated on the upper portion (204) of the main frame (203). In an embodiment, the at least one cover panel (107) is configured to displace relative to the upper portion (204) of the main frame (203) and also with respect to the seat (101) of the vehicle (100). The at least one cover panel (107) may be structure to be lifted, pivoted, and combination thereof, to selectively allow access to the battery case (300) and in turn the battery module (106). In the illustrative embodiment, profile of the at least one cover panel (107) maybe profiled to resemble a fuel tank of a conventional vehicle, while the at least one cover panel (107) is configured to enclose a charging module (113) (best seen in Figure 2b) which is capable of interacting with an external power source to supply a defined power to the battery module (106) for operation of the vehicle (100). The charging module (113) in the at least one cover panel (107) is electrically coupled to the battery module (106) in the battery case (300), for aiding in charging of such battery module (106). The charging module (113) may be structured so that, at least a portion the charging module (113) may be extendable from the at least one cover panel (107) to electrically interface with the external power source, while remaining portion of the charging module (113) may be housed within the at least one cover panel (107).
[00035] In an embodiment, the battery module (106) may include a housing (304b), a handle portion (304a), and at least one battery cell (not visible in figures)

which is enclosed and/or sealed by the housing (304b) and the handle portion (304a). The battery module (106) may be aligned relative to a major axis and a minor axis of the battery case (300), in order to be insertable and securable within the battery case (300). As best seen in Figure la, the major axis (A-A) of the battery case (300), when viewed in a side view of the vehicle (100), overlaps the head tube (201) (i.e., major axis of the head tube (201) and the major axis of the battery case (300) are coplanar in the side view of the vehicle (100)).
[00036] Referring to Figures 2a and 2b, the battery case (300) is located in a space define between the main frame (203) and the down frame (202). In an embodiment, the space for accommodating and positioning of the battery case (300) is defined by the main frame (203) at a top side and a rear side of the battery case (300), while the down frame (202) along with the support frame (309) supports from a front side of the battery case (300). Further, a mounting guard (112) which supports the power unit (104) and connectable to an end of the support frame (309) is configured to support from a bottom side of the battery case (300), as best seen in Figure 2b. Such configuration to define the space for accommodating the battery case (300), allows mounting of the battery case (300) to be performed without unmounting of the power unit (104).
[00037] The support frame (309) and the base member (301) of the battery case (300) are configured to support the battery module (106) about the down frame (202), and in-turn the body frame (200), for accommodating with the vehicle (100). The base member (301) of the battery case (300) includes at least one base flange (302a) and at least one support flange (302b). The at least one base flange (302a) is configured to extend about the minor axis (C-C) of the battery module (106) about a lateral direction (i.e., about width of the vehicle (100)) relative to the down frame (202) and the support frame (309). The at least one base flange (302a) is connected to a downward portion (205) of the main frame (203), which extends from the upper portion (204) of the main frame (203). Further, one end of the at least one support flange (302b) is structured to extend from a portion of the support frame (309) and connectable proximal to the

down frame (202), while an other end of the at least one support flange (302b) is connected to one end of the at least one base flange (302a). The at least one base flange (302a) and the at least one support flange (302b) are configured to define a closed geometric profile in order to support and accommodate the battery module (106) in the battery case (300).
[00038] In an embodiment, the at least one support flange (302b) connected to one end of the at least one base flange (302a) may extend parallel to the support member so that, another base flange (302a) may be employed for connecting the support member and the at least one support flange (302b) to define a normal closed geometric profile. Alternatively, the support member connected to one end of the base flange (302a) may either converge or diverge to connect with the support frame (309), to define a polygonal closed geometric profile. That is, the support flange (302b) and the base flange (302a) of the base member (301) may be selectively connected to define the closed geometric profile in a form including, but not limited to, square, triangle, pentagon, and any other profile capable of supporting the battery module (106). In the illustrative embodiment, the at least one support flange (302b) and the at least one base flange (302a) are selectively connected to define a rectangular closed profile, as best seen in Figure 2b, to support the battery module (106) in the battery case (300).
[00039] In an embodiment, the at least one support flange (302b) and the at least one base flange (302a) are provided with one or more mounting structures, as best seen in Figure 2b. The one or more mounting structures are either mechanically joined or thermally joined to the at least one support flange (302b) and the at least one base flange (302a) for mounting and securing of the battery case (300) and in-turn the battery module (106). In the illustrative embodiment, the one or more mounting structures are mechanically joined to the at least one support flange (302b), the at least one base flange (302a), the downward portion (205) of the main frame (203) and the support frame (309) of the battery case (300). Such connection may be performed by means including, but not limited to, fasteners, clamps, and rivets. Alternatively, the

one or more mounting structures may be integrally formed on the downward portion (205) of the main frame (203) and the support frame (309) to allow seating and connection of the battery case (300) within the space. In an embodiment, the at least one base flange (302a) is connectable to a cross frame structure (308) which is connected to the downward portion (205) of the main frame (203), to mount the battery case (300) within the space defined between the main frame (203) and the down frame (202), as seen in Figure 2a.
[00040] Referring to Figures 2a and 3 in conjunction, the battery case (300) includes a left side cover (303a) and a right side cover (303b), to enclose and at least partially conceal the battery module (106) in the battery case (300). Further, each of the left side cover (303a) and the right-side cover (303b) are connectable to the base member (301), either about the at least one base flange (302a) or about the at least one support flange (302b). In an embodiment, at least one of the left side cover (303 a) and the right side cover (303b) is pivotable relative to the base member (301). Pivoting of the left side cover (303a) and the right side cover (303b) may allow access to the battery module (106) enclosed within the battery case (300) from either sides of the vehicle (100). In an embodiment, at least one of the left side cover (303a) and the right side cover (303b) is fixed to the bast member of the battery case (300) so that, the battery module (106) is accessible from one side of the vehicle (100) and concealed or enclosed from the other side. In the illustrative embodiment, both the left side cover (303a) and the right side cover (303b) are pivotally connected to the at least one support flange (302b) of the base member (301) through an hinge member (311), to laterally pivot away from the at least one cover panel (107) of the vehicle (100).
[00041] The battery case (300) also includes a securing portion (310), which is
extends from at least one of the left side cover (303a) and the right side cover (303b). The securing portion (310) is structured to extend between the upper portion (204) of the main frame (203) and the down frame (202) to support the battery module (106). In the illustrative embodiment, the securing portion (310) is configured to hold the battery module (106) by at least partially intruding a gap defined in a handle portion

(304a) of the battery module (106). The securing portion (310) may be configured to restrict upward movement along a longitudinal axis of the battery module (106), while the base member (301) of the battery case (300) is configured to restrict downward movement along a longitudinal axis of the battery module (106).
[00042] Referring now to Figures 2b and 3, the battery case (300) further includes a locking unit (305), coupled to at least one of the upper portion (204) and the downward portion (205) of the main frame (203). The locking unit (305) is configured to lock at least one of the left side cover (303 a) and the right side cover (303b) which is pivotally coupled to the base member (301) to secure the battery module (106) in the battery case (300). In an embodiment, the locking unit (305) may be at least one of a latch, a fastener assembly, and any other means capable of restricting operation of one of the left side cover (303a) and the right side cover (303b) to secure the battery module (106) in the battery case (300).
[00043] In the illustrative embodiment, the locking unit (305) includes a receiver member (306) such as a clasp, and a locking member (307) such as a lever or a cable, to restrict movement of the left side cover (303a) and/or the right side cover (303b). For restricting pivotal movement of one of the left side cover (303a) and the right side cover (303b) relative to the base member (301), one of the receiver member (306) and the locking member (307) are mounted on or coupled to the main frame (203), while other of the receiver member (306) and the locking member (307) is mounted on or coupled to one of the left side cover (303a) and the right side cover (303b).
[00044] As best seen in Figures 2a and 3, the receiver member (306) is mounted on the upper portion (204) of the main frame (203), while the receiver member (306) may be alternatively mounted on or coupled to each of the left side cover (303a) and the right side cover (303b). In an embodiment, the locking member (307) may be a cable, having complementary profile with which the locking member (307) may be accommodated and/or secured by the receiver member (306). The locking member (307) may be defined on one of the left side cover (303a) and the right side cover (303b) when the receiver member (306) is mounted on the upper portion (204) of the

main frame (203) so that, the locking member (307) is connectable to the receiver member (306) and in-turn secure the battery module (106) in the battery case (300). In an embodiment, the locking member (307) being the cable may possess elastic properties so that, the locking member (307) may be stretched to connect the receiver member (306) with one or more protrusions defined in at least one of the left side cover (303a) and the right side cover (303b). With stretching of the locking member (307) and connecting with the one or more protrusions of the left side cover (303 a) or the right side cover (303b), the battery module (106) within the battery case (300) may be rigidly packed and/or secured, thereby preventing movement relative to width of the vehicle (100).
[00045] Referring now to Figures 4a to 4e along with Figure la, illustrate sequential operations for accessing the battery case (300) of the vehicle (100). The battery module (106) is secured in the battery case (300), where the battery case (300) with the battery module (106) is positioned below and partially enclosed by the at least one cover panel (107), as best seen in Figure la. Further, a portion of one end of the at least one cover panel (107) is engaged by the seat (101) at one end and other end of the at least one cover panel (107) is connectable to either of the upper portion (204) of the main frame (203) or the head tube (201).
[00046] In the illustrative embodiment, to access to the battery case (300), the seat (101) of the vehicle (100) is removed for complete exposure of the at least one cover panel (107) which encloses the battery case (300), as best seen in Figure 4a. In an embodiment, for exposing the at least one cover panel (107), a portion of the seat (101) (pertaining to seating locating of a rider) may be removed to disengage connection between the seat (101) and the at least one cover panel (107) of the vehicle (100). Here, it should not be construed that the seat (101) of the vehicle (100) may be required to be completely removed, while extent of removal of the seat (101) may be dependent configuration of the seat (101) such as, but not limited to, split seats, saddle seat, and the like. Additionally, the seat (101) may be removed through at least one of lifting, pivoting, biasing, and any other manner which may also allow at least a portion

of the seat (101) to be engage with the vehicle (100) and have no engagement with the at least one cover panel (107).
[00047] Turning to Figure 4b which illustrates that the at least one cover panel (107) enclosing the battery case (300) is operated to allow access to the locking unit (305) of the battery case (300). In an embodiment, the at least one cover panel (107) may be pivoted relative to the head tube (201) or the main frame (203) for accessing the locking unit (305) of the battery case (300), where pivoting of the at least one cover panel (107) may be vertical, horizontal, oblique and the like. Alternatively, the at least one cover panel (107) may be, similar to the seat (101), removed from the vehicle (100). In an embodiment, the at least one cover panel (107) may be secured by means of a key-lock mechanism (not seen in Figures) to restrict selective access to the battery case (300).
[00048] Operating the at least one cover panel (107) may allow access to the locking unit (305) of the battery case (300). Unlocking of the locking unit (305) by at least one method of pulling, clipping, snapping, rupturing, and cutting, may be configured to release the securing portion (310) of the left side cover (303a) and the right side cover (303b), as seen in Figure 4b. Pivotal movement of at least one of the left side cover (303a) and the right side cover (303b) is configured to provide access to interior of the battery case (300) including the battery module (106).
[00049] Referring now to Figures 4c and 4d which illustrate removal of the battery module (106) from the battery case (300). As seen in Figure 4c, relative to Figure 4d, the battery module (106) is lifted along the longitudinal axis of the battery case (300) which ensures that weight of the battery module (106) is shifted from the base member (301) of the battery case (300). Such shifting of weight of the battery module (106) allows for electrical disconnection between a first connector (not visible in figures) of the battery module (106) and a second connector in the battery case (300). Also, lifting of the battery module (106) from the base member (301) of the battery case (300) may allow movement of the battery module (106) in various degrees of freedom (i.e., relative to the longitudinal axis of the battery case (300)). With such

access, the battery module (106) is free from restrictions of the battery case (300) due to which the battery module (106) may be either pivotally or linearly removed, as seen in Figure 4e.
[00050] In an embodiment, for installation of the battery module (106), sequential operations from Figure 4e to 4a may be required to be performed.
[00051] In an embodiment, the battery case (300), when viewed in a rear view of the vehicle (100), may include a maximum width which may be equal to or less than distance between rider leg rests (111) in an open condition on either side of the vehicle (100). With such configuration of the battery case (300), securement of the battery module (106) may be ensured to be secured within dimensional width of the vehicle (100), whereby mitigating requirement of additional tolerance that a rider may consider for maneuvering of the vehicle (100).
[00052] In an embodiment, the vehicle (100) may also include an auxiliary battery in addition to the battery module (106), where such auxiliary battery may be configured to operate other components including, but not limited to, horn, blinkers, and the like, and the battery module (106) may be configured to propel the vehicle (100). Alternatively, the battery module (106) may be capable of operating other components of the vehicle (100) without the auxiliary battery.
[00053] It may herein be noted that although the present description and associated drawings, illustrate and explain the present invention in the context of a pivot plate, the present invention may, without any limitation, finds application in various other elements of the vehicle (100).
[00054] While few embodiments of the present invention have been described above, it is to be understood that the invention is not limited to the above embodiments and modifications may be appropriately made thereto within the spirit and scope of the invention.

[00055] While considerable emphasis has been placed herein on the particular features of this invention, it will be appreciated that various modifications can be made, and that many changes can be made in the preferred embodiments without departing from the principles of the invention. These and other modifications in the nature of the invention or the preferred embodiments will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the invention and not as a limitation.
[00056] Although the present invention has been described in considerable detail with reference to certain preferred embodiments and examples thereof, other embodiments and equivalents are possible. Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with functional and procedural details, the disclosure is illustrative only, and changes may be made in detail, especially in terms of the procedural steps within the principles of the invention to the full extent indicated by the broad general meaning of the terms. Thus, various modifications are possible of the presently disclosed system and process without deviating from the intended scope and spirit of the present invention. Accordingly, in one embodiment, such modifications of the presently disclosed system and method are included in the scope of the present invention

claim:

1. A two-wheeled electric vehicle (100), comprising:
a body frame (200), comprising: a head tube (201); and
a down frame (202) and a main frame (203) extending downward and rearward from the head tube (201), and
a battery case (300), located in a space defined between the main frame (203) and the down frame (202),
wherein a major axis (A-A) of the battery case (300), in a side view of the two-wheeled electric vehicle (100) overlaps the head tube (201).
2. The two-wheeled electric vehicle (100) as claimed in claim 1, wherein the
battery case (300) comprises:
a support frame (309) extending downward and rearward from the down frame (202) of the body frame (200); and
a base member (301) connectable to the support frame (309), the base member (301) configured to support a battery module (106).
3. The two-wheeled electric vehicle (100) as claimed in claim 2, wherein the battery case (300) comprises at least one of a left side cover (303a) and a right-side cover (303b), each connectable to the base member (301), and wherein at least one of the left side cover (303a) and the right side cover (303b) is pivotable relative to the base member (301).
4. The two-wheeled electric vehicle (100) as claimed in claim 2, wherein the base member (301) comprises:
at least one base flange (302a) extending along a minor axis (C-C) of the battery module (106), the at least one base flange (302a) is connectable to a downward portion (205) of the main frame (203); and
at least one support flange (302b) extending from the support frame (309) and connectable proximal to the down frame (202);

wherein the at least one base flange (302a) and the at least one support flange (302b) configured to define enclosure to receive and support the battery module (106).
5. The two-wheeled electric vehicle (100) as claimed in claim 4, wherein the at least one base flange (302a) is connectable to a cross frame structure (308) which is connected to the downward portion (205) of the main frame (203), to mount the battery case (300) within the space defined between the main frame (203) and the down frame (202).
6. The two-wheeled electric vehicle (100) as claimed in claim 1, wherein the battery case (300) comprises a locking unit (305), coupled to the main frame (203), the locking unit (305) configured to lock at least one of the left side cover (303a) and the right-side cover (303b) to the base member (301) to secure the battery module (106) in the battery case (300).
7. The two-wheeled electric vehicle (100) as claimed in claim 6, wherein the locking unit (305) comprises:
a receiver member (306), coupled to the main frame (203) and one of the left side cover (303a) and the right-side cover (303b); and
a locking member (307) defined on other of the main frame (203) and one of the left side cover (303a) and the right-side cover (303b), the locking member (307) is connectable to the receiver member (306).
8. The two-wheeled electric vehicle (100) as claimed in claim 1, wherein when viewed in a rear view, maximum width of the battery case (300) is equal to or less than distance between rider leg rests (111) in an open condition on either side of the two-wheeled electric vehicle (100).
9. The two-wheeled electric vehicle (100) as claimed in claim 1, wherein at least one of the left side cover (303a) and the right-side cover (303b) is defined with

a securing portion (310) which extends between an upper portion (204) of the main frame (203) and the down frame (202) to support the battery module (106).
10. The two-wheeled electric vehicle (100) as claimed in claim 6, comprises:
a pair of seat rails (206) extending rearwardly from the upper portion (204) of the main frame (203), wherein the pair of seat rails (206) configured to detachably accommodate a seat (101) of the two-wheeled electric vehicle (100); and
at least one cover panel (107) displaceably accommodated on the upper portion (204) of the main frame (203),
wherein the locking unit (305) is accessible on operating at least one of the seat (101) and the at least one cover panel (107) from the vehicle body frame (200) to access the battery module (106) in the battery case (300).