Claims:We Claim:
1. A frame assembly (101) for a vehicle (100) comprising
a pair of down tubes (106R, 106L),
said pair of down tubes (106R, 106L) being extending rearwardly and downwardly from a portion of a head tube (103),
a main tube (102), said main tube (102) extending rearwardly and then downwardly from said headtube (103) in a longitudinal axis (Y-Y’) of said vehicle (100), and
a tray (109),
wherein a portion of said pair of down tubes (106R, 106L) is substantially parallel to a portion of said main tube (102) thereby defining a storage space (101S), and
wherein said storage space (101S) is portioned by said tray (109).
2. The frame assembly (101) as claimed in claim 1, wherein said frame assembly (101) includes an upper guiding bracket (110),
said upper guiding bracket (110) being attached to said tray (109) to form an upper storage chamber (101U).
3. The frame assembly (101) as claimed in claim 1, wherein a front-end portion of said tray (109) being attached to said pair of downtube (106R, 106L), and
a rear end portion is attached to a lower end portion of said upper guiding bracket (110),
wherein an upper-end portion of said upper guiding bracket (110) being attached to a portion of said main tube (102).
4. The frame assembly (101) as claimed in claim 1, wherein said frame assembly (101) includes a pair of upper support brackets (203),
wherein a front-end portion of said upper support bracket (203) is attached to a portion of said downtube (106L, 106R) and a rear end portion of said upper support brackets (203) being configured to attach to a portion of said upper guiding bracket (110).
5. The frame assembly (101) as claimed in claim 1, wherein said frame assembly (101) includes a pair of bottom tubes (108),
a bottom support plate (202), and
a connecting bracket (107),
wherein said connecting bracket (107) being configured to join the lower end portion of said pair of said downtube (106R, 106L) and a front-end portion of said bottom tubes (108), and
wherein said bottom support plate (202) being attached to a portion of said bottom tubes (108) in a cross-bridge manner.
6. The frame assembly (101) as claimed in claim 1, wherein a rear end portion of said bottom tubes (108) being connected to said main tube (102) to form a lower storage chamber (101L) below said tray (109).
7. The frame assembly (101) as claimed in claim 4, wherein said connecting bracket (107) being configured to have a corrugated profile in a zigzag pattern, said connecting bracket (107) includes two or more attachment portions (107A) wherein said attachment portion (107A) being configured to have U shaped recess configured to receive and attach one or more pair of down tubes (106R, 106L).
8. The frame assembly (101) as claimed in claim 1, wherein said upper guiding bracket (110) comprising
a first portion (110B),
a second portion (110C), and
an upward sidewall (110D),
wherein said first portion (110B) and said second portion (110C) forms an obtuse angle, and
wherein said first portion (110B) and said second portion (110C) being configured to have one or more opening (110E).
9. The frame assembly (101) as claimed in claim 7, wherein said upward sidewall (110D) being borders a portion of said first portion (110B) and said second portion (110C).
10. The frame assembly (101) as claimed in claim 7, wherein said first portion (110B) and said second portion (110C) includes one or more openings (110A), said opening (110A) being configured to receive attachment means to attach to the tray (109) at one side and the main tube (102) at another side.
11. The frame assembly (101) as claimed in claim 4, wherein said bottom support plate (202) being configured to have one or more upward side wall (202A) provided on a portion of said bottom support plate (202) to arrest the lateral movement of one or electrochemical cells.
12. The frame assembly (101) as claimed in claim 4, wherein said upper support bracket (203) being configured to have L shape cross-section comprising of one or more holes (203A) to receive attachment means to attach to the one or more downtube (106R, 106L) on one side and the main tube (102) at another side.
13. A tray (109) for a frame assembly (101) of a vehicle comprising
a base portion (109B), and
a sidewall portion (109C),
wherein said front end portion of said base portion (109B) being configured to have a plurality of notches (109E) being configured to receive and attach a portion of one or more downtube (106R, 106L),
wherein said sidewall portions (109C), said one or more sidewall portion (109C) being extending upwardly substantially bordering said base portion (109B), and
wherein said base portion (109B) being configured to have one or more depression (109D) being configured to have elongated bulged portion extending outwardly from said base portion (109B).
14. A connecting bracket (107) for a frame assembly (101) of a vehicle being configured to have a corrugated profile in a zigzag pattern, said connecting bracket (107) including two or more attachment portion (107A) wherein said attachment portion (107A) being configured to have U shaped recess configured to receive and attach one or more pair of down tubes (106R, 106L).
15. An upper guiding bracket (110) for a frame assembly (101) for a vehicle comprising
a first portion (110B),
a second portion (110C), and
an upward sidewall (110D),
wherein said first portion (110B) and said second portion (110C) forms an obtuse angle between them,
wherein said first portion (110B) and said second portion (110C) being configured to have one or more opening (110E),
wherein said upward sidewall (110D) being bordering a portion of said first portion (110B) and said second portion (110C), and
wherein said first portion (110B) and said second portion (110C) includes one or more opening (110A), said opening (110A) being configured to receive attachment means to attach to a tray (109) at one side and a main tube (102) at another side.
16. A bottom support plate (202) for a frame assembly (101) for a vehicle being configured to have one or more upward side wall (202A) provided on a portion of said bottom support plate (202) to arrest the lateral movement of one or more electrochemical cells being disposed in a storage space (101S) formed above the bottom support plate (202).
17. An upper support bracket (203) for a frame assembly (101) of a vehicle being configured to have an L shape cross-section, said upper support bracket (203) comprises of one or more holes (203A) to receive attachment means to attach to the one or more frame downtube (106R, 106L) on one side and a main tube (102) at another side.
18. A vehicle (100) comprises
a prime mover (802); and
a frame assembly (101), wherein said frame assembly (101) includes
a pair of downtubes (106R, 106L),
said pair of down tubes (106R, 106L) being extending rearwardly and downwardly from a portion of a head tube (103),
a main tube (102), said main tube (102) extending rearwardly from said headtube (103) in a longitudinal axis (Y-Y’) of said vehicle (100) and then downwardly, and
a tray (109),
wherein a portion of said pair of down tubes (106R, 106L) is substantially parallel to a portion of said main tube (102) thereby defining a storage space (101S),
wherein said storage space (101S) is partitioned into upper (101U) and lower (101L) storage chambers by said tray (109), said storage chamber (101U, 101L) being configured to accommodate one or more battery boxes (801P, 801S), and
wherein said battery boxes (801P, 801S) being disposed of ahead of said prime mover (802) when viewed from a side of said vehicle (100).
19. The vehicle (100) as claimed in claim 18, wherein said prime mover (802) being attached to a prime mover bracket (803), said prime mover bracket (803) is attached to a portion of said main tube (102).
20. The vehicle (100) as claimed in claim 18, wherein a control unit (804) is positioned over said prime mover (802), said control unit (804) is attached to a primary bracket (805), said primary bracket (805) being attached to the main tube (102).
, Description:TECHNICAL FIELD
[0001] The present subject matter relates to a multi-wheeled vehicle. More particularly, to a straddle type vehicle.

BACKGROUND
[0002] Over the past few years, the investment and market viability of the alternative powertrain vehicle is growing in a wide range. Importantly, the high costs of fossil-based fuel and at the same time pressing need to be environment-friendly is leading to alternative means of transportation. The alternative means include electric vehicles, electric vehicles with or without a supplemental IC engine (i.e., hybrid electric vehicle), or fuel cell-powered vehicles. The alternative powertrain vehicles are environmentally clean as it does not pollute the air during its operation and its operation is silent. Hence preference of users is rapidly shifting towards alternative powertrain vehicles for their regular usage. But electrochemical cells including fuel cell stacks or batteries must withstand predetermined temperature ranges as well as shock, vibration, and abuse hence optimal layout placement & stable packaging of electrochemical cells without any compromise in space for storage compartment is always a challenge for automobile players.
[0003] The above information disclosed in this Background section is only for enhancement of understanding of the background of the disclosure and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art.
BRIEF DESCRIPTION OF THE DRAWINGS
[0004] The present invention is described with reference to an exemplary embodiment of a straddle type two-wheeled vehicle colloquially called a motorcycle wherein a rider has to straddle and sit. This invention is implementable in two-wheeled vehicles/three-wheeled vehicles. The same numbers are used throughout the drawings to reference like features and components. Further, the inventive features of the invention are outlined in the appended claims.
[0005] Non-limiting and non-exhaustive embodiments of the invention are described with reference to the following figures, wherein like reference numerals refer to like parts throughout the various views unless otherwise specified. It should be appreciated that the following figures may not be drawn to scale.
[0006] Descriptions of certain details and implementations follow, including a description of the figures, which may depict some or all of the embodiments described below, as well as a discussion of other potential embodiments or implementations of the inventive concepts presented herein. An overview of embodiments of the invention is provided below, followed by a more detailed description with reference to the drawings.
[0007] Figure 1 illustrates a perspective view of the frame assembly, as per embodiment, in accordance with one example of the present subject matter.
[0008] Figure 2 illustrates an exploded view of the frame assembly, as per embodiment, in accordance with one example of the present subject matter.
[0009] Figure 3 illustrates a perspective view and a top view of the tray, as per embodiment, in accordance with one example of the present subject matter.
[00010] Figure 4 illustrates the perspective view and left side view of the upper guiding bracket, as per embodiment, in accordance with one example of the present subject matter.
[00011] Figure 5 illustrates the perspective view and bottom side view of the connecting bracket, as per embodiment, in accordance with one example of the present subject matter.
[00012] Figure 6 illustrates the perspective view of the bottom support plate, as per embodiment, in accordance with one example of the present subject matter.
[00013] Figure 7 illustrates the perspective view of the upper support bracket, as per embodiment, in accordance with one example of the present subject matter.
[00014] Figure 8 illustrates the perspective view and side view of the vehicle where few parts are omitted from the figure, as per embodiment, in accordance with one example of the present subject matter.

DETAILED DESCRIPTION

[00015] In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. One skilled in the relevant art will recognize, however, that the techniques described herein can be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring certain aspects.
[00016] Various features and embodiments of the present invention here will be discernible from the following further description thereof, set out hereunder. Further "front" and "rear", and "left" and "right" referred to in the ensuing description of the illustrated embodiment refer to front and rear, and left and right directions as seen from a rear portion of the vehicle and looking forward. Furthermore, a longitudinal axis Y – Y’ unless otherwise mentioned, refers to a front to rear axis relative to the vehicle, while a lateral axis C – C’ unless otherwise mentioned, refers generally to a side to side, or left to right axis relative to the vehicle.
[00017] However, it is contemplated that the disclosure in the present invention may be applied to any vehicle without defeating the spirit of the present subject matter. The detailed explanation of the constitution of parts other than the present invention which constitutes an essential part has been omitted at suitable places.
[00018] Typically, the high costs of fossil-based fuel and its impact on pollution is leading to research and development of alternative means of transportation. Further, original equipment manufacturers (OEMs) and customers are being driven down a path to reduce carbon dioxide emissions. One of the feasible ways is by electrifying the drivetrain which can propel vehicles while enabling space inside the vehicles to allow a large enough battery pack to give an adequate driving range. Importantly, in automobiles torque and speed are important parameters, these can vary as per different segment of the vehicle. Likewise, electric vehicles or fuel cell-powered vehicles, etc. are designed by keeping these two parameters in mind. However, the power generated from the electric motor when transmitted directly to the drive wheel will lead to inappropriate torque because a direct drive results in uncontrolled speed or sub-optimal speed. Hence, it is always a challenge for the automobile designers to have an appropriate balance between both torque and speed, so to achieve different speeds at varying loads similarly different torque at different loads requires optimal transmission ratios/system. Therefore, a trade-off between torque requirement and range of the vehicle is difficult since at higher torque requirements the mileage range of the vehicle drops. Therefore, in order to assure an effective torque developed by the drive wheel and the force applied to the road surface, special attention has been given to the electric drive as well as the power source i.e., electrochemical cells of the battery unit. The electrochemical cells include batteries.
[00019] A high-capacity electric motor is generally employed and adapted to deliver more torque as per operating condition albeit at more weight and cost. Moreover, the higher capacity electric motors draw more power from the batteries. Thus, to increase the range of the electric vehicle a high watt-hour battery is to be packaged within the electric vehicle in addition to the high-capacity motors. Further, the high-capacity motor and high watt-hour batteries adversely affect its storage space and also involves a complete redesign of frame assembly to support the high-capacity electric motor and high watt-hour batteries as well as its location/mountings. The complete redesign of frame assembly for an electric or hybrid electric vehicle is a challenge for automobile makers, especially, when automobile manufacturers need to cater to different market segments and users with product offerings and variants meeting the demands of respective users. These could involve variants in form of size, the capacity of the vehicle, range of usage, cost, ease of manufacturing, etc. From the manufacturer’s point of view, once a platform product is designed, the product economics would be viable based on the numbers sold. Therefore, it is always a challenge for an automobile manufacturer to have a vehicle layout and design which can be flexible to cater to the variants and the demands and enable modified versions with minimum changes in the vehicle layout, assembly time, manufacturing set-up, etc. The challenge is further complicated when the vehicle architecture/platform requirement needs to cater to different powertrains like the Internal combustion engine (ICE) to an Electric Powertrain or a Hybrid powertrain. Thus, the transition towards electric vehicles is a major challenge for the Original Equipment Manufacturers (OEM’s) in terms of manufacturing, as it requires revamping of core processes to prepare for mass production of the electric vehicles.
[00020] In addition to that, the principal drawbacks of electric vehicles, are the relatively low energy capacity of the traction batteries as compared to an IC engine powered vehicle running on hydrocarbon-based fuel. Further, another demerit of electric vehicles is the excessive length of time required to recharge a battery-based vehicle, as compared to the length of time to refuel a fossil fuel-powered vehicle.
[00021] To address the said issue, the battery swap system is known. However, batteries are heavy, and exchanging these batteries is a huge task as the battery is to be removed from the vehicle and charged in a battery charger or at a remote station. More specifically, the plurality of panels mounted to a frame assembly is to be removed for accessing the battery that makes accessing the batteries an undesirable and cumbersome task. Additionally, swapping the battery is time-consuming, as it is not easily accessible.
[00022] As per known art, layers of batteries are disposed in the rear portion of the frame assembly. More specifically, batteries are tiered one over the other in a heap to meet torque, range, and speed demands. This impacts vehicle’s handling and maneuverability due to unbalanced weight distribution in the vehicle.
[00023] Further, in the battery, significant heat is developed not only by chemical reactions but also by Joule loss caused during charge and discharge cycles, increasing the temperature of the battery. The increase in temperature affects battery life and other battery properties. Therefore, various kinds of battery cooling systems are employed to solve the above problem. Known cooling system comprise incorporating external cooling means which adds more weight and cost to the vehicle. Importantly, such systems are more viable for a four-wheeled vehicle owing to the luxury of space & layout as well as the cost. However, for a compact straddle type two-wheeler or a three-wheeler (trike), there exists a challenge to design a compact, low cost, and efficient cooling system with good durability and reliability.
[00024] Hence, there is a need for an improved frame assembly for a vehicle overcoming all the above problems & trade-offs as well as overcoming problems of the known art.
[00025] The invention is based on the object of making available an improved frame assembly for a vehicle of compact construction, relatively simple, and which makes it possible to swap the electrochemical cells as required with ease.
[00026] It is another object of the present invention to provide a reliable, and cost-effective frame assembly being configured to accommodate plurality of electrochemical cells.
[00027] To this end, the present invention discloses an improved frame assembly for a vehicle. The vehicle as per the present invention includes a prime mover and the frame assembly. The prime mover is mounted to a prime mover mounting bracket. The frame assembly includes a main tube, a head tube, a pair of down tubes, and a pair of side tubes. The pair of down tubes being extending rearwardly and downwardly from a portion of a head tube. The main tube extending rearwardly from said headtube in a longitudinal direction of said vehicle and then downwardly. A portion of said pair of down tubes is substantially parallel to a portion of said main tube thereby defining a storage space, wherein said storage space is partitioned into upper and lower storage space by said tray. The storage space being configured to accommodate one or more battery boxes. The battery boxes being disposed ahead of the prime mover when viewed from a side of said vehicle. Further, as per an aspect of the present invention, the prime mover bracket is attached to a portion of said main tube of the frame assembly.
[00028] As per another aspect of the present invention, a control unit is positioned over said prime mover, said control unit being attached to a primary bracket. The primary bracket being attached to the main tube.
[00029] According to this configuration, one or more battery boxes are disposed ahead of the prime mover and the control unit above prime mover. This achieves compact packaging of batteries, control unit and prime mover in the front half of the frame assembly thereby achieving optimum weight distribution in the vehicle by balancing out with the weight of rider and pillion rider coming on the rear half of the frame assembly. This layout configuration improves handling and maneuverability of the vehicle.
[00030] As per an aspect of the present invention, said frame assembly includes an upper guiding bracket attached to the tray to form an upper storage chamber. Further, as per another aspect of the present invention, a front end portion of said tray being attached to pair of downtube, and a rear end portion is attached to a lower end portion of said upper guiding bracket, and wherein upper end portion of said upper guiding bracket is attached to a portion of said main tube.
[00031] According to this configuration, the ram air flows between the pair of down tubes to which a tray is connected in the longitudinal axis of the vehicle. The ram air flows over the battery boxes, maintains the optimum temperature of the batteries without using active cooling means including cooling fan which draws current from the batteries thereby improving the range of the vehicle.
[00032] As per further aspect of the present invention, said frame assembly includes a pair of upper support brackets, wherein a front-end portion of said upper support bracket is attached to a portion of said downtube and a rear end portion of said upper support brackets being configured to attach to a portion of said upper guiding bracket.
[00033] As per an aspect of the present invention, said frame assembly includes a pair of bottom tubes, a bottom support plate, a connecting bracket, wherein said connecting bracket being configured to join the lower end portion of the said downtube and a front end portion of said bottom tubes, and wherein said bottom support plate being attached to a portion of said bottom tubes in a cross bridge manner.
[00034] As per further aspect of the present invention a rear end portion of said bottom tubes is connected to said main tube to form a lower storage chamber below said tray.
[00035] In accordance with this configuration, one of the primary efficacies of the present invention is that the plurality of batteries can be disposed within upper and lower storage chambers with minimum modification in the conventional cradle type frame. This enables OEM’s to create variants without revamping core mechanical process.
[00036] As per further aspect of the present invention, the tray comprises of a base portion, a side wall portion, and wherein said front end portion of said base portion is configured to have plurality of notches being configured to receive and attach a portion of one or more downtube; wherein said one or more sidewall portion extends upwardly substantiality bordering said base portion, and wherein said base portion being configured to have one or more depression being configured to have elongated bulged portion extending outwardly from said base portion.
[00037] In accordance with this configuration, one of the primary efficacies of the present invention is the improved stiffness of the frame assembly. The tray can bear as well as securely hold the weight of plurality of batteries disposed in the upper chamber due to depression portions. The depression portion’s evenly distributing the load to reliably hold the batteries and enables compact layout design of the vehicle. Further, the side wall, bordering the base portion, arrests the lateral and longitudinal movement of the batteries even on unmetalled or rugged roads.
[00038] As per further aspect of the present invention, said connecting bracket being configured to have a corrugated profile in a zigzag pattern, said bracket includes two or more attachment portion wherein said attachment portion being configured to have U shaped recess configured to receive and attach one or more pair of down tubes.
[00039] In accordance with this configuration, one of the primary efficacies of the present invention is the improved stiffness of the frame assembly since the connecting bracket connects the pair of downtube with pair of bottom tubes thereby eliminating any continuous bend in the tube.
[00040] As per further aspect of the present invention, said upper guiding bracket comprises a first portion, a second portion, and an upward sidewall, said first portion and said second portion form an obtuse angle between them, wherein said first portion and second portion are being configured to have one or more opening, wherein an upward sidewall borders a portion of said first portion and said second portion, and wherein said first portion and second portion includes one or more opening, said opening being configured to receive attachment means.
[00041] In accordance with this configuration, one of the primary efficacies of the present invention is the improved cooling due to efficient heat dissipation from battery boxes. The ram air egresses from the primary storage chamber through the plurality of opening in the first and second portion. Further, the upward sidewall prevents the lateral movement of the batteries.
[00042] As per an aspect of the present invention, said bottom support plate is configured to have an upward side wall provided on a portion of said bottom support plate to arrest the lateral movement of one or more electrochemical cells being disposed in a storage space formed above the bottom support plate.
[00043] As per further aspect of the present invention, said upper support bracket being configured to have L shape cross-section comprising one or more holes to receive attachment means to attach to the one or more downtube on one side and the main tube at another side.
[00044] In accordance with this configuration, one of the primary efficacies of the present invention is the batteries can be quickly and easily accessible by unfastening the one of the upper support brackets.
[00045] The present subject matter is further described with reference to accompanying figures. It should be noted that the description and figures merely illustrate the principles of the present subject matter. Various arrangements may be devised that, although not explicitly described or shown herein, encompass the principles of the present subject matter. Moreover, all statements herein reciting principles, aspects, and examples of the present subject matter, as well as specific examples thereof, are intended to encompass equivalents thereof.
[00046] The foregoing disclosure is not intended to limit the present disclosure to the precise forms or particular fields of use disclosed. As such, it is contemplated that various alternate embodiments and/or modifications to the present disclosure, whether explicitly described or implied herein, are possible in light of the disclosure. Having thus described embodiments of the present disclosure, a person of ordinary skill in the art will recognize that changes may be made in form and detail without departing from the scope of the present disclosure. Thus, the present disclosure is limited only by the claims.
[00047] In the foregoing specification, the disclosure has been described with reference to specific embodiments. However, as one skilled in the art will appreciate, various embodiments disclosed herein can be modified or otherwise implemented in various other ways without departing from the spirit and scope of the disclosure. Accordingly, this description is to be considered as illustrative and is for the purpose of teaching those skilled in the art the manner of making and using various embodiments of the disclosure. It is to be understood that the forms of the disclosure herein shown and described are to be taken as representative embodiments. Equivalent elements, materials, processes or steps may be substituted for those representatively illustrated and described herein. Moreover, certain features of the disclosure may be utilized independently of the use of other features, all as would be apparent to one skilled in the art after having the benefit of this description of the disclosure. Expressions such as “including”, “comprising”, “incorporating”, “consisting of”, “have”, “is” used to describe and claim the present disclosure are intended to be construed in a non-exclusive manner, namely allowing for items, components or elements not explicitly described also to be present. Reference to the singular is also to be construed to relate to the plural.
[00048] Further, various embodiments disclosed herein are to be taken in the illustrative and explanatory sense, and should in no way be construed as limiting of the present disclosure. All joinder references (e.g., attached, affixed, coupled, connected, etc.) are only used to aid the reader's understanding of the present disclosure, and may not create limitations, particularly as to the position, orientation, or use of the systems and/or methods disclosed herein. Therefore, joinder references, if any, are to be construed broadly. Moreover, such joinder references do not necessarily infer that two elements are directly connected to each other.
[00049] Additionally, all numerical terms, such as but not limited to, “first”, “second”, “third”, “primary”, “secondary”, “main” or any other ordinary and/or numerical terms, should also be taken only as identifiers, to assist the reader's understanding of the various elements, embodiments, variations and/or modifications of the present disclosure, and may not create any limitations, particularly as to the order, or preference, of any element, embodiment, variation and/or modification relative to, or over, another element, embodiment, variation and/or modification.
[00050] It will also be appreciated that one or more of the elements depicted in the drawings/figures can also be implemented in a more separated or integrated manner, or even removed or rendered as inoperable in certain cases, as is useful in accordance with a particular application. Additionally, any signal hatches in the drawings/figures should be considered only as exemplary, and not limiting, unless otherwise specifically specified.
[00051] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[00052] Figure 1 illustrates a perspective view of a frame assembly (101), as per embodiment, in accordance with one example of the present subject matter. As per illustrated embodiment, the frame assembly (101) includes at least a main tube (102) extending rearwards from a head pipe (103), a pair of left and right rear tubes (104), and a pair of side tubes (105L, 105R). The pair of left and right rear tubes (104) extending rearwards from a portion of said main tube (102). Further, the pair of side tubes (105) extending inclinedly downwardly and forwardly from said pair of rear tubes (104). More particularly, at least the pair of left and right rear tubes (104) and the pair of left and right side tubes (105L, 105R) form a rear portion of the frame assembly (101) and contribute to rigidity thereof. As per the illustrated embodiment, a pair of left and right down tubes (106L, 106R) is extending rearwardly and downwardly from a portion of said head tube (103) to connect with a connecting bracket (107). The connecting bracket (107) being configured to join a lower end portion of said downtube (106L, 106R) and a front end portion of one or more bottom tubes (108) wherein a portion of said pair of down tubes (106R, 106L) is substantially parallel to a portion of said main tube (102) thereby defining a storage space (101S). The storage space (101S) is partitioned into upper (101U) and lower (101L) storage chamber, by said tray (109), More specifically, the rear end portion of said bottom tubes (108) being connected to said main tube (102) to form the lower storage chamber (101L) below the tray (109). The tray (109) being attached to pair of downtube (106L, 106R), and a rear end portion is attached to a lower end portion of an upper guiding bracket (110). An upper-end portion of said upper guiding bracket (110) is attached to a portion of said main tube (102). The upper guiding bracket (110) and the tray (109) are joined with each other to form the upper storage chamber (101U) below the main tube (102).
[00053] Figure 2 illustrates an exploded view of the frame assembly (101), as per embodiment, in accordance with one example of the present subject matter. The tray (109) is detachably attached to pair of down tubes (106L, 106R) through mounting brackets (201). As per illustrated embodiment, the mounting brackets (201) are welded to pair of downtube (106L, 106R). The mounting brackets (201) being configured to have one or more openings (201A). The opening (201A) being configured to receive attachment means to detachably attach the tray (106L, 106R) with the mounting brackets (201). The rear end portion of the tray (109) and a lower end portion of the upper guiding bracket (110) is provided with openings (110A). The openings (110A) being configured to receive attachment means to detachably attach the upper guiding bracket (110) and tray (109). The upper-end portion of the upper guiding bracket (110) and a portion of the main tube (102) is provided with an opening (110A) The opening (110A) being configured to receive attachment means to rigidly connect the upper guiding bracket (110) with the main tube (102) of the frame assembly (101). Further, as per illustrated embodiment, the rear end portion of the pair of down tubes (106L, 106R) and a front-end portion of the bottom tube (108) is welded to a portion of the connecting bracket (107). The bottom guiding plate (202) is welded to the bottom tubes (108) to arrest the lateral movement of an electrochemical cells. A front end portion of said pair of upper support bracket (203) is detachably attached to a portion of said downtube (106) using attachment means (not labelled). Further, a rear end portion of said upper support brackets (203) being configured to detachably attached to a portion of said upper guiding bracket (110) using attachment means (not labelled). As per alternative embodiment, one of said pair of upper support bracket (203) can be fixedly attached to the downtube (106L, 106R) and upper guiding bracket (110) through welding.
[00054] Figure 3 illustrates a perspective view and a top view of the tray, as per embodiment, in accordance with one example of the present subject matter. A tray (109) comprises of a base portion (109B), a sidewall portion (109C). The front-end portion of the base portion (109B) being configured to have a plurality of notches (109D). The plurality of notches (109D) being configured to receive and attach a portion of one or more downtube (106L, 106R). The sidewall portions (109C) being extending upwardly and substantiality bordering said base portion (109B). The base portion (109B) being configured to have one or more depression (109D) being configured to have an elongated bulged portion extending outwardly from the said base portion (109B). As per illustrated embodiment, the depressions (109D) are two in number.
[00055] Figure 4 illustrates the perspective view and left side view of the upper guiding bracket (110), as per embodiment, in accordance with one example of the present subject matter. The upper guiding bracket (110) comprises of a first portion (110B), a second portion (110C), and an upward sidewall (110D). The first portion (110B) and said second portion (110C) forms an obtuse angle when seen in a side view of the vehicle. The first portion (110B) and the second portion (110C) being configured to have one or more openings (110E). The opening (110A) being configured to receive attachment means to attach to the tray (109) (as shown in figure 1) at one side and the main tube (102) (as shown in figure 1) at another side. As per illustrated embodiment, the opening (110E) being configured to have a rectangular cross-section. The upward sidewall (110D) substantially borders said first portion (110B) and said second portion (110C) of the guiding bracket (110).
[00056] Figure 5 illustrates the perspective view and bottom side view of the connecting bracket (107), as per embodiment, in accordance with one example of the present subject matter. The connecting bracket (107) being configured to have a corrugated profile in a zigzag pattern. The connecting bracket (107) including two or more attachment portions (107A). The attachment portions (107A) being configured to have U shaped recess to receive and attach a portion of one or more pairs of down tubes (106L, 106R).
[00057] Figure 6 illustrates the perspective view of the bottom support plate (202), as per embodiment, in accordance with one example of the present subject matter. The bottom support plate (202) being configured to have one or more upward side wall (202A) provided on a portion of the said bottom support plate (202) to arrest the lateral movement of one or electrochemical cells being disposed in a storage space (101S) (as shown in figure 1) formed above the bottom support plate (202). As per illustrated embodiment, the upward side wall (202A) is provided on the lateral sides of the bottom support plate (202).
[00058] Figure 7 illustrates the perspective view of the pair of upper support bracket (203), as per embodiment, in accordance with one example of the present subject matter. The pair of upper support bracket (203) being configured to have L shape cross-section. As per the preferred embodiment, the upper support bracket (203) comprises one or more holes (203A) being configured to receive attachment means to attach to the one or more downtube (106R, 106L) (as shown in figure 1) on one side and the main tube (102) (as shown in figure 1) at another side.
[00059] Figure 8 illustrates the perspective view and side view of a vehicle (100) where few parts are omitted from the figure, as per embodiment, in accordance with one example of the present subject matter. The upper storage chamber (101U) and lower storage chamber (101L) being configured to receive one or more electrochemical cells. As per illustrated embodiment, a primary battery box (801P) comprising of plurality of electrochemical cells being disposed of in the upper storage chamber (101U) rests on the tray. Further, a secondary battery box (801S) is disposed above a portion of connecting tray (107) and the bottom support bracket (202). A prime mover (802) is mounted in the lower storage chamber (101L) disposed rearwards of the secondary battery box (801S). As per illustrated embodiment, the prime mover (802) includes an electric motor. The prime mover (802) is attached to a prime mover mount bracket (803). The prime mover mount bracket (803) is attached to the portion of the main tube (102). The primary battery box (801P) and secondary battery box (801S) are positioned ahead of the said prime mover (802) when viewed from the side of the vehicle (100). Further, a control unit (804) is positioned over said prime mover (802). More specifically, control unit (804) is attached to primary bracket (805). The primary bracket (805) is welded to a portion of the main tube (102).
[00060] While the present invention has been shown and described with reference to the foregoing preferred embodiments, it will be apparent to those skilled in the art that changes in form, connection, and detail may be made therein without departing from the spirit and scope of the invention.

List of reference

Y-Y’ – Longitudinal axis
101 - Frame assembly
101U - Upper storage chamber
101L - Lower storage chamber
101S- Storage space
102 - Main tube
103 - Head tube
104 - Rear tube
105R, 105L - Pair of Side tubes
106R, 106L - Pair of Down tubes
107 - Connecting bracket
107A - Attachment portions
108 - Bottom tube
109 - Tray
109A - Opening for fasteners
109B - Base portion
109C - Sidewall
109D - Depressions
109E - Notches
110 - Upper guiding bracket
110A - Openings for fasteners
110B - First portion
110C - Second portion
110D - Sidewall
110E - Openings
201 - Mounting brackets
201a - Opening in mounting bracket
202 - Bottom support plate
202A - Sidewall
203 - Upper support bracket
203A - Openings for fasteners
801P - Primary storage chamber
801S - Secondary storage chamber
802 - Prime mover
803 - Prime mover mounting
804 - Electronic control unit
805 Primary bracket