Description:FORM 2

THE PATENTS ACT, 1970
(39 OF 1970)
&
THE PATENTS RULES, 2003

COMPLETE SPECIFICATION
(See Section 10 and Rule 13)

AN ELECTRIC MOTOR ASSEMBLY AND A VEHICLE

APPLICANT:

TVS MOTOR COMPANY LIMITED, (an Indian Company)

at: “Chaitanya”, No. 12, Khader Nawaz Khan Road, Nungambakkam, Chennai – 600034, Tamil Nadu, India.

The following specification particularly describes the invention and the manner in which it is to be performed.


TECHNICAL FIELD
[0001] The present invention relates to an electric motor assembly. More particularly, the present invention relates to a hub-less electric motor assembly mounted on one or more rotating members of a vehicle.
BACKGROUND
[0002] A vehicle needs a prime mover to function. The conventional way of powering the vehicle was with an internal combustion engine. However, due to various drawbacks of the internal combustion engine, such toxic emissions, a vehicle which is able to be powered by electricity was invented, which are now increasingly becoming popular and commercially successful in various segments and sizes of vehicles. Conventionally, the electric vehicle is driven by an electric motor which is powered by a battery. The electric motor is either mounted in proximity of wheels of the vehicle or used with a transmission system. Soon afterwards, various products adopted the technique of mounting the electric motor on the hub of the wheels of the vehicle for sake of efficiency by avoiding transmission losses among other issues. Such a system of hub-mounting had various advantages and disadvantages.
[0003] Due to the hub-mounting of the electric motor, the electric motor became compact but this resulted in an increase in the weight of the wheels resulting in an increased unsprung mass of the vehicle which has further various disadvantages in terms of handling, and comfort of the user of the vehicle. The conventional electric motors used in the hub-mounted electric motor use an in-runner type, where the stator sits inside the rotor, and then the wheel is rotated through a shaft attached to the rotor. Such electric motors were compact compared to internal combustion engines and conventional electric motors connected with a transmission device, however, there is still room for improvement due to their disadvantages such as being a complex structure, having multiple components which resulted in increased weight, reduced efficiency and lack of limited space utilization of the electric motor assembly. Further, there was no cooling mechanism for cooling the hub-mounted electric motors due to which the efficiency and effectiveness of the electric motor were negatively affected. The conventional systems of the hub-mounted electric motor had a plurality of end plates which are affixed on the stator as well as rotor which resulted in increased part count and thereby increased weight of the vehicle. The conventional systems of electric motors use a shaft attached to the rotor of the vehicle which is then connected to the wheels of the vehicle and then transmits power and torque to the wheels. The electric motor is housed in the hub of the wheel, and a shaft is attached to the hub of the wheel. The electric motor consists of a rotor and stator, the rotor being connected to the shaft is housed inside the stators, and the stator is attached to the housing. The rotor is supported by the housing through a bearing. The bearing is attached to the housing on which the rotor is attached. The rotor is then further connected with a shaft. This conventional method of hub-mounted electric motor included parts such as the wheel itself, rotor back iron & magnet, stator stack, copper wiring for electromagnets, left and right cover end plates, shaft and spider, and a cable for transmitting electricity. Due to the large number of parts, the electric motor which is known conventionally has an increased weight and has a complex assembly process and structure.
[0004] Further, the conventional motors required a cooling mechanism for efficient operation of the electric motor. The electric motors generate heat which contributes to general wear and tear of the electric motor. In rare cases extreme heat could cause permanent damage to parts such as coils, bearings and/or circuitry. Thus, generation of too much heat without proper measures to dissipate has a direct and adverse impact on the working and efficiency of the electric motor. In case of vehicles employing electric motors, such as but not limited to electric vehicles, low efficiency of the electric motors can have serious adverse effects. This is because vehicles have limited energy capacity from battery packs and low efficiency of electric motor will lead to energy wastage and diminish the travel range of the vehicle. Hence, dedicated cooling mechanisms are known to be provided in certain conventional vehicles to achieve better efficiency of the electric motor. An attempt to solve this problem was done in certain vehicles are provided with forced air-cooling systems and heat sinks which help in cooling the electric motor of the vehicle. Another attempt was to provide a liquid cooling systems and cooling pipes which are connected to the electric motor, which would cool the electric motor of the vehicle. These cooling mechanisms were undesirable due to certain problems. These cooling systems were additional components in the vehicle which would increase the overall weight of the vehicle, which would result in decreased energy efficiency of the vehicle. Further, the additional components involved in the known cooling mechanisms would undesirably increase cost of the vehicle and maintenance.
[0005] Thus, the conventional methods known in the art for hub-mounted electric motors have problems such as increased number of parts, complex structure, increased assembly time, and no inherent cooling mechanism and/or additional cooling mechanism required. Therefore, there exists a need for an electric motor assembly that can overcome all of the above-mentioned problems and other problems which are known in the art and which provide a solution that reduces the number of parts, assembly time, and the weight of the electric motor and also enhances cooling and provides ease of accessibility of the electric motor assembly.
SUMMARY OF THE INVENTION
[0006] The present subject matter relates to an electric motor assembly for one or more rotating members of the vehicle. The electric motor assembly comprises a rotor member, a stator member, one or more magnetic members and a housing unit. The rotor member is configured to connect to the one or more rotating members of the vehicle and the stator member is magnetically coupled to the rotor member. The one or more magnetic members are configured to be fixedly and circumferentially attached to the rotor member. The housing unit is configured to be connected to a predefined portion of the vehicle. The housing unit comprises a first cover member and a second cover member. The first cover member is configured to house the stator member and the second cover member is configured to attach the stator member and the first cover member.
[0007] The present subject matter also relates to a vehicle comprising a frame assembly, one or more rotating members and an electric motor assembly. The electric motor assembly comprises a rotor member, a stator member, one or more magnetic members and a housing unit. The rotor member is configured to connect to the one or more rotating members of the vehicle and the stator member is magnetically coupled to the rotor member. The one or more magnetic members are configured to be fixedly and circumferentially attached to the rotor member. the housing unit is configured to be connected to a predefined portion of the vehicle. the housing unit comprises a first cover member and a second cover member. The first cover member is configured to house the stator member and the second cover member is configured to attach the stator member and the first cover member.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The proposed invention is described with reference to an exemplary embodiment of an electric motor assembly of a vehicle. The same reference numerals are used throughout the drawings to reference similar features and components. Description of certain details and implementations follow, including a description below, as well as a discussion of other potential embodiments described below, as well as a discussion of other potential embodiments or implementations of the inventive concepts provided below, followed by a more detailed description with reference to the drawings.
[0009] Figure 1 illustrates an exploded view of an electric motor assembly as per one embodiment of the present invention.
[0010] Figure 2 illustrates a perspective view of the electric motor assembly as per another embodiment of the present invention.
[0011] Figure 3 illustrates a side view of the electric motor assembly as per another embodiment of the present invention.

DETAILED DESCRIPTION
[0012] 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 practised 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.
[0013] 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. 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.
[0014] In order to address the one or more of the above-mentioned problems, the present invention provides an electric motor assembly for a vehicle.
[0015] As per one embodiment of the present invention, an electric motor assembly for one or more rotating members of a vehicle is provided. The electric motor assembly comprises a rotor member, a stator member, one or more magnetic members and a housing unit. The rotor member is configured to connect to the one or more rotating members of the vehicle and the stator member is magnetically coupled to the rotor member. The one or more magnetic members are circumferentially disposed to the rotor member. the housing unit is configured to be connected to a predefined portion of the vehicle. the housing unit comprises a first cover member and a second cover member. The first cover member is configured to house the stator member and the second cover member is configured to attach the stator member and the first cover member.
[0016] As per another embodiment of the present invention, the electric motor assembly has a hollow centre which is defined by an inner circumferential portion of the first cover member. The first cover member has a plurality of protrusions which are configured on an inner circumferential portion of the first cover member. The plurality of protrusions is configured for dissipation of heat during the operation of the electric motor assembly.
[0017] As per another embodiment of the present invention, the one or more rotating members of the vehicle is a wheel rim. The rotor member is configured to be press fitted to an inner surface of the wheel rim. The one or more magnetic members are fixedly attached to an inner surface of the rotor member.
[0018] As per another embodiment of the present invention, the first cover member, the second cover member and the stator member have one or more holes, and the one or more fastening members passing through the one or more holes to enable detachable attachment in a sandwich configuration.
[0019] As per another embodiment of the present invention, the stator member comprises a plurality of coil modules which are arranged in a concentric manner.
[0020] As per another embodiment of the present invention, the one or more magnetic members being electromagnets.
[0021] As per another embodiment of the present invention, the electric motor assembly comprising a regenerative braking mechanism.
[0022] As per another embodiment of the present invention, the electric motor assembly is press-fitted inside surface of the one or more rotating members of the vehicle.
[0023] In yet another embodiment of the present invention, a vehicle comprising a frame assembly, one or more rotating members, and an electric motor assembly is provided. The one or more rotating members of the vehicle are configured to enable a motion of the vehicle. The electric motor assembly comprises a rotor member, a stator member, one or more magnetic members and a housing unit. The rotor member is configured to connect to the one or more rotating members of the vehicle and the stator member is magnetically coupled to the rotor member. The one or more magnetic members are configured to be circumferentially disposed on the rotor member. The housing unit is configured to be connected to a predefined portion of the vehicle. The housing unit comprises a first cover member and a second cover member. The first cover member is configured to house the stator member and the second cover member is configured to attach the stator member and the first cover member.
[0024] Thus, the mentioned invention provides the electric motor assembly for the vehicle being mounted on the one or more rotating members of the vehicle.
[0025] The present subject matter is further described with reference to the 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.
[0026] The foregoing disclosure is not intended to limit the present disclosure to the precise forms of 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.
[0027] In the foregoing specification, the disclosure has been described with reference to specific 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 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 processed 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”, and “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.
[0028] Further, various embodiments disclosed herein are to be taken in the illustrative and explanatory sense, and would in no way be construed as limiting 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 invention, and may not create limitations, particularly as to the position orientation, or use of the system 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.
[0029] Additionally, all numerical terms, such as, but not limited to, “first”, “second”, “primary”, “secondary”, “main” or any other ordinary and/or numerical terms, should also be taken 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.
[0030] 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. The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. However, the disclosed invention is not limited to the present embodiments.
[0031] Figure 1 illustrates an exploded view of an electric motor assembly (200) as per an embodiment of the present invention. The electric motor assembly (200) is fitted into the one or more rotating members (100) of a vehicle (not shown). The one or more rotating members (100) of the vehicle can be the wheel assembly including a rim (100) and a tyre (not shown). The electric motor assembly (200) is configured to be mounted on the one or more rotating members (100) of the vehicle. The electric motor assembly (200) comprises a rotor member (201), a stator member (202), one or more magnetic members and a housing unit (204). The rotor member (201) is connected to the one or more rotating members (100) of the vehicle. The rotor member (201) being configured to be press-fitted to the one or more rotating members (100) of the vehicle in another embodiment such that an inner diameter of the one or more rotating members (100) is configured to receive an outer diameter of the rotor member (201). In one embodiment, the one or more rotating members (100) of the vehicle is a wheel rim having an inner surface (101). The rotor member (201) is press fitted to the inner surface (101) of the wheel rim. As per another embodiment of the present invention, the rotor member (201) is a rotor back iron. The stator member (202) is magnetically coupled to the rotor member (202). The stator members (202) are the member which remains stationary during the operation of the electric motor assembly (200). The rotor member (201) is the member which is configured to rotate during the operation of the electric motor assembly (200). The one or more magnetic members (203) are circumferentially disposed on the rotor member (203). In one embodiment, the one or more magnetic members (203) are fixedly attached to an inner surface (201S) of the rotor member (201). The one or more magnetic members (203) may be fixedly attached to the rotor member (201) via different means of affixation with adhesives, welding, etc. The electric motor assembly (200) is housed inside a housing unit (204) which is configured to be connected to a predefined portion of the vehicle. The housing unit (204) comprises a first cover member (205), and a second cover member (206). The first cover member (205) securely houses the stator member (202) and the second cover member (206) is configured to attach the stator member (202), and the first cover member (205). As per another embodiment of the present invention, the second cover member (206) is detachably attached to the first cover member (206) via one or more fastening members (208). The first cover member (205), the stator member (202), and the second cover member (206) have one or more holes (209) to facilitate detachable attachment. The one or more fastening members (208) passes through the one or more holes (209) of the first cover member (205), the stator member (202) and the second cover member (206). This results in a sandwich mounting of the stator member (202) between the first cover member (205) and the second cover member (206). This sandwich mounting is responsible for arresting the movement of the stator member (202) within the housing unit (204). This sandwich mounting of the first cover member (205), the stator member (202) and the second cover member (206) is press fitted to one or more circumferential edges (not shown) of the one or more rotating members (100). The mounting of the electric motor assembly (200) on the one or more circumferential edges of the one or more rotating members (100) of the vehicle restricts the movement of the one or more rotating members (100) in a lateral direction of the vehicle. The stator member (202) and the one or more magnetic members (203) are at a predetermined gap from each other. The function of the stator member (202) and the rotor member (201) is to create a magnetic flux that would result in rotational movement of the rotor member (201) due to restricted movement of the stator member (202). The magnetic flux is created due to magnetic induction between the one or more magnetic members (203) and the magnets of the stator member (202). In the preferred embodiment, the stator member (202) is an electromagnet which is made by providing the stator member (202) with a plurality of coil modules (not shown) which are wrapped around the stator member (202) in a concentric manner. This results in the stator member (202) to function as an electromagnet. The plurality of coil modules can be made of copper as per the preferred embodiment of the present invention. The rotor member (201) may be provided with a permanent magnet in the preferred embodiment. When the stator member (202) is provided with power and the stator member (201) functions as an electromagnet, the magnetic flux between the stator member (202) and the one or more magnetic members (203) creates a rotational force which acts on the rotor member (201) thereby enabling the rotor member (201) to rotate. This results in the rotational functioning of the rotor member (201). Since the rotor member (201) is connected to the one or more rotating members (100), the rotational movement of the rotor member (201) results in the rotational movement of the one or more rotating members (100) thereby enabling the motion of the vehicle. The rotor member (201) is rotatably attached to the stator member (202). The rotor member (201) and the stator member (202) is provided with magnets to achieve the function of electric motor. In another embodiment of the present invention, the electric motor assembly (200) may also be provided with a regenerative braking mechanism to further increase the efficiency of the present invention. The present invention reduces the number of components required in functioning of the conventional motors such as hub-mounted motors. The present invention provides a housing unit (204) which is hollow at the hub region and is disposed on the inner surface i.e., inside the one or more rotating members (100). The present invention has further eliminated the need for a shaft and spindle by connecting the rotor member (201) to the one or more rotating members (100) directly. This also eliminates the need for conventional bearing around the shaft and spindle. This elimination reduces the weight of the assembly by over 15 per cent of the weight of the electric motor assembly (200). The torsional force of the rotor member (201) is directly transferred to the one or more rotating members (100) thereby resulting in the movement of the vehicle.
[0032] Figure 2 and Figure 3 illustrate a perspective view and a side view of the electric motor assembly (200) respectively as per another embodiment of the present invention and taken together for discussion. The present embodiment discloses an outrunner type of in-wheel mounted motor where the rotor member (201) sits outside the stator member (202) and rotates around the stator member (202). The rotor member (201) is press fitted or fixedly connected by other mechanism to the one or more rotating members (100). Using such a combination reduces the number of components i.e., shaft, spindle and conventional bearing thereby creating a simple mechanism to power the vehicle. This combination further increases efficiency and power, also reduces complexity, weight and costs. The housing unit (204) is provided with a hollow centre or hollow hub, which provides a range of benefits including reduced weight, and also results in cooling of the electric motor assembly (200). Further, to increase the effectiveness of the cooling mechanism, a plurality of protrusions (207) is provided on the inner circumferential portion of the first cover member (205) which results in increase of the effective surface area. Since the first cover member (205) encompasses the components of the motor assembly that may generate heat, the enhanced surface area by virtue of the plurality of protrusions help in effective dissipation of heat during the operation of the electric motor assembly (200). The plurality of protrusions (207) is exposed to and the air passes through the plurality of protrusions (207) during the movement of the vehicle thereby creating a cooling effect on the electric motor assembly (200), thereby reducing the temperature of the electric motor assembly (200) which results in increased efficiency of the electric motor assembly (200). The plurality of protrusions (207) has a circular profile and have a predefined interval between each of the plurality of protrusions (207).
[0033] Thus, as per the present subject matter, an electric motor assembly (200) for a vehicle is provided which provides an enhanced energy efficiency of the electric motor assembly (200) because among other features, it allows an improved cooling of the motor assembly. The configuration of the housing unit (204) including the first cover member (205) and the second cover member (206) enables sufficient ventilation in the electric motor assembly (200). In one aspect, the hollow centre in the first cover member (205) of the housing unit (204) further contributes to the cooling by ventilation. As the vehicle moves, the hollow centre allows for ventilation between one side of the vehicle and the other side of the vehicle resulting in heat dissipation of electric motor assembly. The ventilation of air between the electric motor assembly (200) allows passing of air near the inner circumferential portion of the electric motor assembly (200). In another aspect, the plurality of protrusions (207) in the inner circumferential portion of the first cover member (205) increases the effective surface area of the inner circumferential portion thereby further increasing the heat dissipation thereby further enhancing the cooling efficiency. The above configuration allows enhanced cooling of the electric motor assembly (200) due to which the requirement of dedicated and external cooling mechanisms is also eliminated. Due to the present configuration, the costs of the additional components for dedicated cooling mechanisms and their maintenance are also eliminated. Further the additional weight of the additional components can be avoided in the implementation of the present invention thereby improving power to weight ratio and energy efficiency of the vehicle.
[0034] According to the above disclosure, the present invention provides various advantages in terms of reduction in number of parts of the electric motor assembly such as reducing the need for components such as shaft, spindle and conventional bearing, etc. This leads to reduction of weight of the assembly and thereby the vehicle, which improves the power to weight ratio as well as energy efficiency. The reduced number of parts also enhance ease of assembly during manufacturing as well as servicing. Further, due to reduced number of parts, the costs for assembly and servicing are also greatly reduced. The decreased number of parts greatly increases the performance of the vehicle. This saves time and enhances profitability. Notably above advantages are achieved without comprising on the strength, durability, power and the cooling of the electric motor assembly (200). Further the additional weight of the additional components can also be avoided thereby further improving power to weight ratio and energy efficiency of the vehicle.
[0035] 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.
[0036] This written description uses examples to provide details on the disclosure, including the best mode, and also to enable any person skilled in the art to practice the disclosure, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the disclosure is defined by the claims and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.
[0037] It is to be understood that the aspects of the embodiments are not necessarily limited to the features described herein. Many modifications and variations of the present subject matter are possible in light of the above disclosure.

List of References

Reference Numeral Meaning
100 One or More Rotating Members
200 Electric Motor Assembly
201 Rotor Member
202 Stator Member
203 One or More Magnetic Members
204 Housing Unit
205 First Cover Member
206 Second Cover Member
207 A Plurality of Protrusions
208 One or More Fastening Members
209 One Or More Holes
, Claims:We Claim:
1. An electric motor assembly (200) for one or more rotating members (100) of a vehicle, the electric motor assembly (200) comprising:
a rotor member (201), the rotor member (201) being configured to be connected to the one or more rotating members (100) of the vehicle;
a stator member (202), the stator member (202) being magnetically coupled to the rotor member (202);
one or more magnetic members (203), the one or more magnetic members (203) being circumferentially disposed to the rotor member (201); and
a housing unit (204), the housing unit (204) being configured to be connected to a predefined portion of the vehicle, the housing unit (204) comprising:
a first cover member (205), the first cover member (205) being configured to securely house the stator member (202); and
a second cover member (206), the second cover member (206) being configured to attach the stator member (202) and the first cover member (205).
2. The electric motor assembly (200) as claimed in claim 1, wherein the electric motor assembly (200) having a hollow centre, the hollow centre being defined by an inner circumferential portion of the first cover member (205), the first cover member (205) having a plurality of protrusions (207), the plurality of protrusions (207) being configured on an inner circumferential portion of the first cover member (205), the plurality of protrusions being configured for dissipation of heat during the operation of the electric motor assembly (200).
3. The electric motor assembly (200) as claimed in claim 1, wherein
the one or more rotating members (100) of the vehicle is a wheel rim;
the rotor member (201) is configured to be press fitted to an inner surface (101) of the wheel rim; and
the one or more magnetic members (203) being fixedly attached to an inner surface (201S) of the rotor member (201).
4. The electric motor assembly (200) as claimed in claim 1, wherein the first cover member (205), the second cover member (206), and the stator member (202) having one or more holes (209), and one or more fastening members (208) being configured pass through the one or more holes (209) to enable a detachable attachment between the first cover member (205), the second cover member (206) and the stator member (202) in a sandwich configuration.
5. The electric motor assembly (200) as claimed in claim 1, wherein the stator member (202) comprising a plurality of coil modules, the plurality of coil modules being arranged in a concentric manner.
6. The electric motor assembly (200) as claimed in claim 1, wherein the one or more magnetic members (203) is an electromagnet.
7. The electric motor assembly (200) as claimed in claim 1, wherein the electric motor assembly (200) comprising a regenerative braking mechanism.
8. The electric motor assembly (200) as claimed in claim 1, wherein the electric motor assembly (200) being press-fitted inside the one or more rotating members (100) of the vehicle.
9. A vehicle comprising:
a frame assembly;
one or more rotating members (100), the one or more rotating members (100) being configured to enable a motion of the vehicle;
an electric motor assembly (200), the electric motor assembly (200) comprising:
a rotor member (201), the rotor member (201) being configured to be connected to the one or more rotating members (100) of the vehicle;
a stator member (202), the stator member (202) being magnetically coupled to the rotor member (202);
one or more magnetic members (203), the one or more magnetic members (203) being configured to be circumferentially disposed on the rotor member (201); and
a housing unit (204), the housing unit (204) being configured to be connected to a predefined portion of the vehicle, the housing unit (204) comprising:
a first cover member (205), the first cover member (205) being configured to securely house the stator member (202); and
a second cover member (206), the second cover member (206) being configured to attach the stator member (202) and the first cover member (205).

Dated this 24th day of November, 2023
[Digitally Signed]
Sudarshan Singh Shekhawat
IN/PA – 1611
Agent for the Applicant