FORM 2
THE PATENTS ACT 1970
[39 OF 1970]
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See section 10; rule 13]
TITLE: “A MODULAR CASING FOR A BATTERY OF AN ELECTRIC
VEHICLE”
Name and Address of the Applicant:
TATA MOTORS LIMITED; an Indian company having a registered address at
Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai 400 001 Maharashtra,
India.
Nationality: Indian
The following specification particularly describes the invention and the manner in which it is to be performed.

5 TECHNICAL FIELD
Present disclosure, in general, relates to the field of automobiles. Particularly, but not exclusively, the present disclosure relates to an electric vehicle. Further, embodiments of the present disclosure relate to a modular casing for a battery of the electric vehicle.
10
BACKGROUND OF THE DISCLOSURE
Electric vehicles, specifically two-wheeled electric vehicles, include one or more
battery modules coupled to a prime mover for driving or propulsion. The electric
vehicles such as cars, minivans, mopeds, scooters, and the like, have a battery case
15 located within or underneath the vehicle to receive and secure the one or more
battery modules.
In order to assure safe and reliable operation, the battery modules are normally
positioned in some form of receptacle such as a tray which is secured to the vehicle.
20 The receptacles are generally defined with one or more cavities to accommodate
the battery modules.
Conventionally, number of the battery modules are predetermined for a vehicle based on torque, range, cost and various other parameters of the vehicle. For
25 example if cost is considered, compact and light weight batteries are expensive,
while larger and heavier batteries are comparatively less expensive. Further, vehicles requiring higher capacity batteries generally have excess weight, which may alter Centre of gravity of the vehicle and may cause imbalance affecting drivability of the vehicle such as turning, braking, acceleration and the like of the
30 vehicle. such imbalance may contribute to roll over of the vehicle during
turnings/upon impact in some instances. Furthermore, the vehicles with larger batteries often have space limitations to accommodate luggage and/or passengers, which may not suit diverse requirements of users. Accommodating large number of battery modules may decrease ground clearance of the vehicle which is not
35 desirable.

5
The present disclosure is directed to overcome one or more limitations stated above
or any other limitations associated with the conventional mechanisms.
SUMMARY OF THE DISCLOSURE
10
One or more shortcomings of the prior art are overcome by a casing as claimed and
additional advantages are provided through the casing in the present disclosure.
Additional features and advantages are realized through the techniques of the
present disclosure. Other embodiments and aspects of the disclosure are described
15 in detail herein and are considered a part of the claimed disclosure.
In one non-limiting embodiment of the present disclosure a modular casing for a battery of an electric vehicle is disclosed. The modular casing comprises a tray defined with at least one cavity extending inwardly. The tray comprises a base
20 having a first end and a second end opposite to the first end. The tray comprises a
pair of opposing walls extending perpendicular to the base to accommodate a plurality of battery modules. The tray comprises a pair of flanges extending outwardly from opposing sides of the tray in a lateral direction from the first end and the second end, where each flange of the pair of flanges is defined with a
25 plurality of apertures to removably couple the tray to a chassis. Each flange of the
pair of flanges is defined with a slot on at least one end of the pair of flanges. The tray comprises a connecting member receivable within a portion of the slot, wherein the connecting member is configured to connect one or more modular casings.
30 In an embodiment, the pair of flanges are defined with a plurality of grooves
extending along the first end and the second end to accommodate at least one of a cooling circuit and wiring of the plurality of battery modules.
In an embodiment, the tray is defined with at least one vertical member extending
35 upwardly from the base and perpendicular to the pair of opposing walls, the at least
one vertical member is configured to support a portion of the plurality of battery modules.

5
In an embodiment, the plurality of apertures is configured to receive a plurality of
bushings configured to detachably couple the modular casing to the chassis of the
electric vehicle.
10 In an embodiment, the base is defined with a plurality of ribs extending on a bottom
portion parallel to the pair of flanges and contoured on the base of the tray to protect the modular casing from external impact.
In an embodiment, wherein the tray is made of aluminium material.
15
In an embodiment, the connecting member is an elongated member structured to
receive and allow a plurality of fasteners at either ends into the slot to detachably
connect the one or more modular casings.
20 In an embodiment, the one or more modular casings comprises a first modular
casing and a second modular casing, wherein the slot of the first modular casing
and the slot of the second modular casing are aligned to receive the connecting
member in the slot to connect the first modular casing and the second modular
casing.
25
In an embodiment, the the tray is defined with a plurality of holes defined in the
slot corresponding to the connecting member to receive the plurality of fasteners.
The foregoing summary is illustrative only and is not intended to be in any way
30 limiting. In addition to the illustrative aspects, embodiments, and features described
above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
35
The novel features and characteristic of the disclosure are set forth in the appended
claims. The disclosure itself, however, as well as a preferred mode of use, further
objectives and advantages thereof, will best be understood by reference to the

5 following detailed description of an illustrative embodiment when read in
conjunction with the accompanying figures. One or more embodiments are now described, by way of example only, with reference to the accompanying figures wherein like reference numerals represent like elements and in which:
10 Figure 1a is a perspective view of a modular casing, in accordance with an
embodiment of the present disclosure.
Figure 1b is a top view of the modular casing, in accordance with an embodiment
of the present disclosure.
15
Figure 1c is a front view of the modular casing, in accordance with an embodiment
of the present disclosure.
Figure 1d is a side view of the modular casing, in accordance with an embodiment
20 of the present disclosure.
Figure 1e is a perspective view of the modular casing with a battery, in accordance with an embodiment of the present disclosure.
25 Figure 2a is an exploded view of the modular casing of Figure 1a, in accordance
with an embodiment of the present disclosure.
Figure 2b is an exploded view of the modular casing from the front side, in
accordance with an embodiment of the present disclosure.
30
Figure 2c is a detailed view of the modular casing depicting a slot and a connecting
member, in accordance with an embodiment of the present disclosure.
Figure 3a is a magnified view of the modular casing depicting the connecting
35 member in the slot, in accordance with an embodiment of the present disclosure.
Figure 3b is a sectional view of one or more modular casings connected by the connecting member, in accordance with an embodiment of the present disclosure.

5
The figures depict embodiments of the disclosure for purposes of illustration only.
One skilled in the art will readily recognize from the following description that
alternative embodiments of the system and method illustrated herein may be
employed without departing from the principles of the disclosure described herein.
10
DETAILED DESCRIPTION
While the embodiments in the disclosure are subject to various modifications and
alternative forms, specific embodiment thereof has been shown by way of example
15 in the figures and will be described below. It should be understood, however, that
it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternative falling within the scope of the disclosure.
20 The terms “comprises”, “comprising”, or any other variations thereof used in the
disclosure, are intended to cover a non-exclusive inclusion, such that a device, assembly, mechanism, that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to such system, or assembly, or device. In other words, one or more
25 elements in a system proceeded by “comprises… a” does not, without more
constraints, preclude the existence of other elements or additional elements in the system or method.
Embodiments of the present disclosure discloses a modular casing for a battery of
30 an electric vehicle. The modular casing comprises a tray defined with at least one
cavity extending inwardly. The tray comprises a base having a first end and a
second end opposite to the first end. The tray comprises a pair of opposing walls
extending perpendicular to the base to accommodate a plurality of battery modules.
The tray comprises a pair of flanges extending outwardly from opposing sides of
35 the tray in a lateral direction from the first end and the second end, where each
flange of the pair of flanges is defined with a plurality of apertures to removably couple the tray to a chassis. Each flange of the pair of flanges is defined with a slot

5 on at least one end of the pair of flanges. The tray comprises a connecting member
receivable within a portion of the slot, wherein the connecting member is
configured to connect one or more modular casings. With such configuration, the
modular casing may allow customization by varying number of battery modules of
the vehicle based on requirement. Further, the modular casing allows easy
10 attachment and detachment of the battery modules to the electric vehicle.
The disclosure is described in the following paragraphs with reference to Figures 1a to 3b. In the figures, the same element or elements which have same functions are indicated by the same reference signs. It is to be noted that, the vehicle is not
15 illustrated in the figures for the purpose of simplicity. One skilled in the art would
appreciate that the modular casing of the battery as disclosed in the present disclosure may be used in any vehicle including but not liming to commercial vehicles and passenger vehicles and the like. The modular casing of the present disclosure may also be implemented in vehicles having battery modules, for
20 suitably driving the vehicle without deviating from the principles of the present
disclosure.
ABSTRACT
Figures 1a to 1c refer to an exemplary embodiment of the present disclosure which
illustrates a modular casing (100) for a battery (20) [shown in Figure 1e] of an
25 electric vehicle [not shown explicitly in Figures]. The electric vehicle may include,
but not limited to, a passenger vehicle, a commercial vehicle and the like. in the
illustrative embodiment, the vehicle is a four wheeled vehicle having a chassis. In
the illustrative embodiment, the chassis is a monocoque chassis having a plurality
of longitudinal beams and a plurality of transverse beams structured to bear load of
30 the vehicle. In the illustrative embodiment, height of the plurality of longitudinal
beams is reduced to height of the plurality of transverse beams to accommodate the
modular casing (100) beneath the chassis. In an embodiment, the modular casing
(100) adds to structural integrity of the plurality of longitudinal beams and
reduction of height of the plurality of longitudinal beams does not affect structural
35 rigidity of the vehicle.

5 Further, the modular casing (100) is structured to accommodate the battery (20) of
the vehicle. In an embodiment, the battery (20) comprises a plurality of battery modules connectable to each other in series or parallel configuration based on requirement. In an embodiment, the modular casing (100) may be defined by a receptacle shaped profile secured to the vehicle and assure safe and reliable
10 operation of the battery modules. The modular casing (100) comprises a tray (1)
structured to accommodate the plurality of battery modules. In an embodiment, the tray (1) is made of aluminium material. The tray (1) may be defined by one of a cuboidal profile, an oval profile, a semi-spherical profile and the like, to accommodate the battery modules. In the illustrative embodiment, the profile of the
15 tray (1) is depicted as a cuboidal profile to protect the battery modules from external
impact from objects such as stones and other external objects beneath the vehicle. Further, such configuration avoids reduction in ground clearance of the modular casing (100) as can be seen in Figures 1a and 1b.
20 Referring again to Figures 1a and 1b, the tray (1) comprises a base (10) extending
along lengthwise direction of the vehicle along an axis (A-A’) as can be seen in Figure 1b. The base (10) is configured to receive the plurality of battery modules. The base (10) is defined by a rectangular profile having a first end (17) and a second end (18) opposite to the first end (17). In the illustrative embodiment, the first end
25 (17) and the second end (18) are defined along lateral side of the base (10) as can
be seen in Figure 1a.
Referring now to Figures 1a and 1c, the base (10) is defined with a bottom portion (4). The bottom portion (4) is defined with a plurality of ribs (41) extending parallel
30 to an axis (A-A’) of the tray (1). In an embodiment, the plurality of ribs (41) may
be integrally defined on the bottom portion (4) as can be seen in Figure 1c or may be detachably coupled to the bottom portion (4). The plurality of ribs (41) is contoured on the base (10) of the tray (1) and is configured to protect the modular casing (100) from external impact. In an embodiment, the plurality of ribs (41) may
35 be configured to protect the bottom portion (4) and the modular casing (100) from
external impact due to contact with ground, external debris and the like.

5
Referring again to Figures 1a and 1b, the tray (1) comprises a pair of opposing walls
(19) extending from the base (10) to accommodate the plurality of battery modules.
In an embodiment, the pair of opposing walls (19) may extend in a curvilinear
manner from the base (10) based on design requirements of the vehicle. In the
10 illustrative embodiment, the pair of opposing walls (19) is depicted to extend
perpendicular to the base (10) as can be seen in Figure 1a to accommodate the plurality of battery modules and the same shall not be considered a limitation. In an embodiment, the pair of opposing walls (19) are defined at the first end (17) and the second end (18). In an embodiment, the tray (1) may include a first pair of
15 opposing walls (19) and a second pair of opposing walls (19’) extending
perpendicular to the first pair of opposing walls (19) as can be seen in Figure 1a. In the illustrative embodiment, the first pair of opposing walls (19) and the second pair of opposing walls (19’) may define the at least one cavity (11) extending inwardly to accommodate the plurality of battery modules as can be seen in Figure 1a. The
20 alignment of the first pair of opposing walls (19) and the second pair of opposing
walls (19’) may be varied to define the at least one cavity (11) based on profile of the plurality of battery modules and design requirements of the modular casing (100).
25 Further, the tray (1) is defined with at least one vertical member (2) extending
upwardly from the base (10) between the first end (17) and the second end (18) and perpendicular to the base (10) as can be seen in Figure 1a. For the sake of explanation, the at least one vertical member (2) is depicted extending between the first pair of walls (19) as can be seen in Figure 1a and the same shall not be
30 considered a limitation. The at least one vertical member (2) may resemble the pair
of opposing walls (19) in shape. In the illustrative embodiment, the at least one vertical member (2) is depicted extending between the first end (17) and the second end (18) to part the at least one cavity (11) into two cavities as can be seen in Figure 1a. The at least one vertical member (2) is configured to support a portion of the
35 plurality of battery modules. In an embodiment, the at least one vertical member

5 (2) is configured to bear at least a portion of weight of the plurality of battery
modules.
Referring again to Figures 1a to 1c, the tray (1) comprises a pair of flanges (12) extending outwardly from opposing sides at the first end (17) and the second end
10 (18) of the tray (1). In an embodiment, the pair of flanges (12) may extend at an
inclination to the pair of walls (19) based on profile of the plurality of battery modules, space required for the plurality of battery modules and design requirements of the modular casing (100) and the vehicle. In the illustrative embodiment, the pair of flanges (12) is depicted to extend away from the pair of
15 opposing walls (19) as can be clearly seen in Figure 1a to align with the chassis of
the vehicle and to avoid reduction of ground clearance of the vehicle. The pair of flanges (12) is configured to extend in a lateral direction from the first end (17) and the second end (18) perpendicular to the axis (A-A’) of the tray (1). In an embodiment, the pair of flanges (12) may be integrally defined extending from the
20 pair of opposing walls (19) or may be detachably coupled to the pair of opposing
walls (19). The pair of flanges (12) is defined with a plurality of apertures (13) as best seen in Figure 2c to removably couple the tray (1) to the chassis. Each aperture of the plurality of apertures (13) is defined in a spaced apart configuration on each flange of the pair of flanges (12) for fastening the tray (1) to the chassis. The
25 plurality of apertures (13) is configured to receive a plurality of bushings (3) as can
be seen in Figure 1a. The plurality of bushings (3) is configured to detachably couple the modular casing (100) to the chassis. The plurality of bushings (3) may allow a plurality of fasteners (15) to detachably couple the modular casing (100) to the chassis. In the illustrative embodiment, the plurality of apertures (13) are
30 defined in a spaced apart configuration to uniformly distribute and bear weight of
the plurality of battery modules and the modular casing (100) as can be seen in Figure 3b.
Referring now to Figures 2a to 2c, each flange of the pair of flanges (12) is defined
35 with a slot (14) on at least one end. The slot (14) is defined along length of each
flange of the pair of flanges (12). The slot (14) may be defined by one of a U-shaped

5 groove, a C-shaped groove, a semi-spherical groove and the like defined on at least
one end of the pair of flanges (12). In an embodiment, the slot (14) may be defined on both ends of the pair of flanges (12). For the sake of explanation, the slot (14) is depicted as a curved slot (14) as can be seen in Figure 2a and the same shall not be construed as a limitation. In the illustrative embodiment, the slot (14) is defined on
10 both ends of the pair of flanges (12) for alignment of the slot (14) of one modular
casing (100) with the slot (14) of another modular casing (100), where the slots (14) are aligned to form a combined slot (14) as can be clearly seen in Figure 2c. The tray (1) comprises a connecting member (6) receivable within a portion of the slot (14), wherein the connecting member (6) is configured to connect one or more
15 modular casings (100). In an embodiment, the connecting member (6) is an
elongated member structured to resemble and be receivable in the combined slot (14). The connecting member (6) is configured to receive and allow a plurality of fasteners (15) at either ends into the combined slot (14) to detachably connect the one or more modular casings (100) as can be seen in Figure 2a. In an embodiment,
20 the tray (1) is defined with a plurality of holes [not shown in Figures] to fasten the
connecting member (6) in the slot (14). The connecting member (6) is defined with corresponding holes to receive and allow a plurality of fasteners (15). Further, as the plurality of bushings (3) are configured to bear the weight of the plurality of battery modules and the modular casing (100), the connecting member (6) is
25 configured to allow modular connection of the one or more modular casings (100)
and is not subjected to weight of the battery modules and the modular casing (100). The slot (14) and the connecting member (6) allow connecting one or more modular casings (100), to increase a length of the modular casing (100) and allow accommodating increased number of battery modules in the vehicle based on
30 requirement of power required and range of distance to be travelled by the vehicle.
Further, the vehicle may be connected to the one or more modular casings (100)
such as a first modular casing (100a), a second modular casing (100b) and third
modular casing (100c). The one or more modular casing (100) may be connected
35 to a bottom portion (4) of the chassis of the vehicle by the pair of flanges (12). For

5 the sake of explanation, the one or more modular casings (100) are depicted as three
modular casings (100a, 100b, 100c), while the number of modular casings (100) connected to the vehicle may be varied based on the requirements of the vehicle and the same shall not be construed a limitation. In the illustrative embodiment, the first modular casing (100a) is depicted dimensionally larger to accommodate the
10 plurality of battery modules, in comparison to the second modular casing (100b)
and the third modular casing (100c) as can be seen in Figure 2a. In an embodiment, the first modular casing (100a) may be structured to accommodate the minimum number of battery modules required for the vehicle, whereas the second modular casing (100b) and the third modular casing (100c) are structured to accommodate
15 additional battery modules and are connectable to the first modular casing (100a)
by the connecting member (6) based on requirement as best seen in Figure 2c. In an embodiment, the first modular casing (100a), the second modular casing (100b), and the third modular casing (100c) may resemble each other in size. Further, the first modular casing (100a) may be defined with the at least one vertical member
20 (2) to support a portion of the plurality of battery modules.
Referring now to Figures 3a and 3b, the connecting member (6) fits in the slot (14) defined by the pair of flanges (12) of the first modular casing (100a), the second modular casing (100b) and the third modular casing (100c) when the slots (14) are
25 aligned as can be seen in Figure 3a. In an embodiment, the slot (14) of the first
modular casing (100a), the second modular casing (100b) and the third modular casing (100c) align to receive at least two connecting members as best seen in Figure 3b. The plurality of fasteners (15) pass through the connecting member (6) and fit in the plurality of holes of the tray (1). For example, the slot (14) of the first
30 modular casing (100a) and the slot (14) of the second modular casing (100b) on one
end are aligned to receive the connecting member (6) and the slot (14) of the second modular casing (100b) on an other end and the slot (14) of the third modular casing (100c) are aligned to receive the connecting member (6) as can be seen in Figure 3b. Further, the pair of flanges (12) of each modular casing (100) is defined with a
35 plurality of grooves (16) extending along the first end (17) and the second end (18)

5 to accommodate at least one of a cooling circuit and wiring of the plurality of
battery modules as can be seen in Figure 3b. The plurality of grooves (16) are defined on top of the pair of opposing walls (19) as can be seen in Figure 1b. The plurality of grooves (16) allow packing of the wiring and the cooling circuit of the plurality of battery modules to avoid overhanging of the wiring and the cooling
10 circuit. In an embodiment, the wiring is a high-voltage wiring which requires
minimal exposure to environment by accommodating in the plurality of grooves (16). The plurality of grooves (16) allow interconnection of wiring of the plurality of battery modules based on requirement to increase or reduce the number of battery modules i.e., by connecting the plurality of battery modules in parallel/series
15 configuration. The plurality of fasteners (15) and the connecting member (6) may
be detached from the slot (14) to detach the second modular casing (100b) and/or the third modular casing (100c) from the first modular casing (100a) based on requirement. Such configuration of the modular casing (100) allows customization of boot space of the vehicle and the number of battery modules based on
20 requirements of the vehicle.
In an embodiment, the pair of flanges (12) align with the chassis of the vehicle to avoid reduction of ground clearance of the vehicle.
25 In an embodiment, the plurality of apertures (13) are defined in a spaced apart
configuration to uniformly distribute and bear weight of the plurality of battery modules and the modular casing (100).
In an embodiment, the plurality of ribs (41) is contoured on the base (10) of the tray
30 (1) and is configured to protect the modular casing (100) from external impact.
In an embodiment, the plurality of grooves (16) allow interconnection of wiring of
the plurality of battery modules based on requirement to increase or reduce the
number of battery modules.
35
In an embodiment, the modular casing (100) allows varying number of battery
modules to the vehicle without affecting Centre of gravity of the vehicle.

5
In an embodiment, the modular casing (100) allows customization by varying
number of battery modules of the vehicle based on requirement.
In an embodiment, the connecting member (6) and the slot (14) modular casing
10 (100) allows easy attachment and detachment of the battery modules to the electric
vehicle.
EQUIVALENTS
15 With respect to the use of substantially any plural and/or singular terms herein,
those having skill in the art can translate from the plural to the singular and/or from
the singular to the plural as is appropriate to the context and/or application. The
various singular/plural permutations may be expressly set forth herein for sake of
clarity.
20
It will be understood by those within the art that, in general, terms used herein, and
especially in the appended claims are generally intended as “open” terms. It will
be further understood by those within the art that if a specific number of an
introduced claim recitation is intended, such an intent will be explicitly recited in
25 the claim, and in the absence of such recitation no such intent is present. For
example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles “a” or “an”
30 limits any particular claim containing such introduced claim recitation to inventions
containing only one such recitation, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an”; the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim
35 recitation is explicitly recited, those skilled in the art will recognize that such
recitation should typically be interpreted to mean at least the recited number. Furthermore, in those instances where a convention analogous to “at least

5 one of A, B, and C, etc.” is used, in general such a construction is intended in the
sense one having skill in the art would understand the convention having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). In those instances where a convention analogous to “at
10 least one of A, B, or C, etc.” is used, in general such a construction is intended in
the sense one having skill in the art would understand the convention having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). It will be further understood by those within the art that
15 virtually any disjunctive word and/or phrase presenting two or more alternative
terms, whether in the description, claims, or drawings, should be understood to
contemplate the possibilities of including one of the terms, either of the terms, or
both terms. For example, the phrase “A or B” will be understood to include the
possibilities of “A” or “B” or “A and B.”
20
In addition, where features or aspects of the disclosure are described in terms of
Markush groups, those skilled in the art will recognize that the disclosure is also
thereby described in terms of any individual member or subgroup of members of
the Markush group.
25
While various aspects and embodiments have been disclosed herein, other aspects
and embodiments will be apparent to those skilled in the art. The various aspects
and embodiments disclosed herein are for purposes of illustration and are not
intended to be limiting, with the true scope and spirit being indicated by the
30 following claims.
Referral Numeral:

Component Referral numeral
Modular casing 100
First modular casing 100a

Second modular casing 100b
Third modular casing 100c
Tray 1
Base 10
walls 19
At least one cavity 11
Plurality of flanges 12
Plurality of apertures 13
Slot 14
Plurality of fasteners 15
Plurality of grooves 16
First end 17
Second end 18
At least one vertical member 2
Plurality of bushings 3
Plurality of ribs 41
Bottom portion 4
Connecting member 6
Axis AA’
Battery 20
5

5 We Claim:
1. A modular casing (100) for a battery (20) of an electric vehicle, comprising:
a tray (1) defined with at least one cavity (11) extending inwardly, the tray comprising:
a base (10) having a first end (17) and a second end (18) opposite
10 to the first end (17);
a pair of opposing walls (19) extending perpendicular to the base (10) to accommodate a plurality of battery modules;
a pair of flanges (12) extending outwardly from opposing sides
of the tray in a lateral direction from the first end (17) and the second
15 end (18), each flange of the pair of flanges (12) is defined with a
plurality of apertures (13) to removably couple the tray (1) to a chassis, wherein each flange of the pair of flanges (12) is defined with a slot (14) on at least one end of the pair of flanges (12); and
a connecting member (6) receivable within a portion of the slot
20 (14), wherein the connecting member (6) is configured to connect one
or more modular casings (100).
2. The modular casing (100) as claimed in claim 1, wherein the pair of flanges
(12) are defined with a plurality of grooves (16) extending along the first
25 end (17) and the second end (18) to accommodate at least one of a cooling
circuit and wiring of the plurality of battery modules.
3. The modular casing (100) as claimed in claim 1, wherein the tray (1) is
defined with at least one vertical member (2) extending upwardly from the
30 base (10) and perpendicular to the pair of opposing walls (19), the at least
one vertical member (2) is configured to support a portion of the plurality of battery modules.
4. The modular casing (100) as claimed in claim 1, wherein the plurality of
35 apertures (13) is configured to receive a plurality of bushings (3) configured

5 to detachably couple the modular casing (100) to the chassis of the electric
vehicle.
5. The modular casing (100) as claimed in claim 1, wherein the base (10) is
defined with a plurality of ribs (41) extending on a bottom portion (4)
10 parallel to the pair of flanges (12) and contoured on the base (10) of the tray
to protect the modular casing (100) from external impact.
6. The modular casing (100) as claimed in claim 1, wherein the tray (1) is made
of aluminium material.
15
7. The modular casing (100) as claimed in claim 6, wherein the connecting
member (6) is an elongated member structured to receive and allow a plurality of fasteners (15) at either ends into the slot (14) to detachably connect the one or more modular casings (100).
20
8. The modular casing (100) as claimed in claim 7, wherein the one or more
modular casings (100) comprises a first modular casing (100a) and a second
modular casing (100b), wherein the slot (14) of the first modular casing
(100a) and the slot (14) of the second modular casing (100b) are aligned to
25 receive the connecting member (6) in the slot (14) to connect the first
modular casing (100a) and the second modular casing (100b).
9. The modular casing (100) as claimed in claim 7, wherein the tray (1) is
defined with a plurality of holes defined in the slot (14) corresponding to
30 the connecting member (6) to receive the plurality of fasteners (15).

5