DESC:FIELD OF INVENTION
[001] The present invention relates to a two wheeler and motor mount structure. More particularly, the present invention relates to a motor mounting structure for a two-wheeler electric vehicle to achieve optimal load distribution.

BACKGROUND OF THE INVENTION

[002] In the ever evolving landscape of vehicle engineering, achieving optimal balance stability and performance is paramount. Traditional, paramount motor structures have often faced challenges related to weight distribution and potential relative motion between the motor and chassis of the vehicle.

[003] In the realm of electric two-wheeler vehicles, hub-driven motors have played a significant role in propelling advancements. These motors have often been integrated with customization and large scale electro motor devices, making the hub driven type motors heavy and expensive. The hub motors are usually positioned at the center of the rear wheel, hub motors offer the advantage of direct power transmission without energy losses through a traditional transmission system. However, these type of motors increases the overall weight of the vehicle.

[004] There are several patent applications that discloses a provision for motor mount structures in a vehicle.

[005] One such European Patent Application EP3097000A1 discloses a body structure a motor vehicle. The body structure of the this European patent application makes it possible to limit the total weight of the body while making it possible to ensure good resistance of the vehicle to rear impact and to ensure a favorable distribution of the stresses generated by the fixing points des shock absorbers, especially rear shock absorbers of a vehicle. The cited prior art fails to disclose use of mid-driven motor in which the motor is positioned at centre of gravity location of the vehicle in such a way that load is equally distributed and there is no relative motion between the chassis and the motor.

[006] Therefore, keeping in view the problem associated with the state of the art there is a need for an improved compact motor mounting structure for vehicles wherein the position and location of motor in mounting structure is done in such a way that load is equally distributed and there is no relative motion between chassis and motor.

OBJECTIVES OF THE INVENTION

[007] A primary objective of the present invention is to provide an improved motor mounting structure for vehicles having compact design.

[008] Another objective of the present invention is to provide a motor mounting structure designed to achieve equal distribution of load to avoid relative motion between chassis and motor.

[009] Another objective of the present invention is to reduce usage of wires in connecting motor with the battery to avoid losses due to voltage drop.

[0010] Yet another objective of the present invention is to provide the motor mounting structure for vehicles which helps in dampening the vibrations and thereby providing smooth ride.

[0011] Other objects and advantages of the present invention will become apparent from the following description taken in connection with the accompanying drawings, wherein, by way of illustration and example, the aspects of the present invention are disclosed.

SUMMARY OF THE INVENTION

[0012] The present invention relates to a motor mount structure for equal load distribution in vehicles. The motor mounting structure for mounting motor in a vehicle comprises a mounting plate detachably attached to a chassis of the vehicle, comprising a plurality of bolt holes oriented at the periphery of a chain drive pulley, a motor mounted over the mounting plate, a plurality of bolts for fastening the motor with the mounting plate through bolt holes and a battery wiredly connected to the motor. The motor in the present invention is positioned at centre of gravity location of the vehicle in such a way that load is equally distributed and there is no relative motion between the chassis and the motor.

BRIEF DESCRIPTION OF DRAWINGS

[0013] An understanding of the present invention may be obtained by reference to the accompanying drawings, when taken in conjunction with the description herein, in which:

[0014] Figure 1 illustrates the motor positioned at the centre of gravity on the vehicle;

[0015] Figure 2 illustrates the rear view of the motor mounting structure;

[0016] Figure 3 illustrates the positioning of the motor, gear box and chain drive in the two-wheeler electric vehicle; and

[0017] Figure 4 illustrates the rear view of motor mounting structure employed with chain drive.

[0018] Reference Numerals for the components of the motor mounting structure are enlisted herein:

Sr. No. Component Reference Numeral
1 Motor Mounting structure 100
2 motor 101
3 Plurality of bolts 102
4 Plurality of bolt holes 103
5 Mounting plate 104
6. Chain drive 105
7. Battery 106

DETAILED DESCRIPTION OF INVENTION

[0019] The following detailed description and embodiments set forth herein below are merely exemplary out of the wide variety and arrangement of instructions which can be employed with the present invention. The present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. All the features disclosed in this specification may be replaced by similar other or alternative features performing similar or same or equivalent purposes. Thus, unless expressly stated otherwise, they all are within the scope of the present invention.

[0020] Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0021] The terms and words used in the following description and claims are not limited to the bibliographical meanings but are merely used to enable a clear and consistent understanding of the invention. Accordingly, it should be apparent to those skilled in the art that the following description of exemplary embodiments of the present invention are provided for illustration purpose only and not for the purpose of limiting the invention.

[0022] It is to be understood that the singular forms “a”, “an” and “the” include plural referents unless the context clearly dictates otherwise.

[0023] It should be emphasized that the term “comprises/comprising” when used in this specification is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof. The equations used in the specification are only for computation purpose.

[0024] Accordingly, the present invention relates to a two wheeler and motor mount structure. More particularly, the present invention relates to a motor mounting structure for a two-wheeler electric vehicle to achieve optimal load distribution.

[0025] According to an aspect of the present invention, a motor mounting structure (100) designed for mounting a motor (101) in a vehicle comprises a mounting plate (104) detachably attached to a chassis of the vehicle; a plurality of bolts (102) for fastening the motor with the mounting plate (104); and a plurality of precisely positioned bolt holes (103) provided at the mounting plate (104) for engaging the bolts (102). Figure 1 of the present invention illustrates the motor (101) strategically positioned at centre of gravity of the vehicle to achieve optimal load distribution. The equal distribution of load helps in dampening the vibrations and provides smooth ride to the rider and passenger.

[0026] In the preferred embodiment, the motor (101) is positioned on the mounting structure (100) of the vehicle in a manner that ensures uniform distribution of the load and eliminates relative motion between the chassis and the motor (101).

[0027] In an exemplary embodiment, the motor (101) is a mid-drive motor which is placed in the mounting structure (100) provided at the bottom bracket area of the two-wheeler vehicle.

[0028] The two-wheeler vehicle may be selected from but not limited to petrol based two-wheeler, diesel based two wheeler or electric two- wheeler.

[0029] The electric vehicle having a chassis and a battery (106) is configured with a motor (101) mounted on the mounting structure (100) in close proximity to the battery (106) unit of the vehicle. This placement serves a dual purpose: firstly, it minimizes length of wiring required to connect the motor (101) and the battery (106), thereby decreasing energy losses due to voltage drop.

[0030] In a preferred embodiment, the motor (101) is mounted on the mounting structure (100) using at least six bolts (102). The bolts (102) used for mounting the motor (101) may have dimensions selected from but not limited to M6, M8, M10 and M12. In an exemplary embodiment, the hex flange bolts used are of M6 dimensions having shaft diameter 6 mm.

[0031] Further, the chosen M6 bolts (102) can be selected from a range of grades such as, but not limited to, Grade 5.8, 8.8, 10.9 and 12.9. This design approach ensures not only secure mounting but also optimal electrical efficiency, contributing to the overall effectiveness of the vehicle’s propulsion system.

[0032] In another embodiment, the motor (101) is designed as per tractive effort calculation based on requirements of the vehicle. In an exemplary embodiment, the motor is a permanent magnet motor to give higher efficiency and output.

[0033] Figure 2-4 illustrates various components of the motor mounting structure (100), which is described herein below:
1) Mounting plate: The mounting plate (104) configured at the bottom bracket area of the two-wheeler vehicle is detachably fixed to the chassis of the vehicle using a plurality of bolts (102). The mounting plate (104) is made of high quality metal material, sturdy and durable in use. The material for mounting plate (104) may be selected from any one of: brass, steel, aluminum and acrylic.

2) Plurality of bolt holes: The mounting plate (104) comprises of a plurality of bolt holes (103) which are provided in a manner that the holes (103) are oriented at periphery of the chain drive (105) pulley, ensuring effortless alignment and fixation of the bolts (102). In an exemplary embodiment, at least six bolt holes (103) are provided to align with at least six M8 bolts. In another exemplary embodiment, size of bolt hole (103) should be approximately 8 mm to insert M8 bolts.

3) Plurality of bolts: The plurality of bolts (102) are provided in the motor mounting structure (100) to fasten the mount with the chassis of the vehicle. The bolts (102) should be corrosion resistant, high tensile and yield strength, and minimum tension.

[0034] The bolts (102) used for mounting the motor may have dimensions selected from but not limited to M6, M8, M10 and M12. The hex flange bolts used are of M6 dimensions having shaft diameter 6 mm.

[0035] Furthermore, the bolts (102) are made from material selected from but not limited to steel, stainless steel, aluminum and silicon bronze.

[0036] Figure 1 illustrates positioning of the motor (101) in the two-wheeler vehicle equipped with chain drive system (105). The motor (101) is strategically positioned at the centre of gravity location of the two-wheeler vehicle so that load is equally distributed thereby avoiding relative motion between chassis and motor (101).

[0037] Figure 2 illustrates rear view of the motor mounting structure (100). The plurality of bolt holes (103) configured at the periphery of the chain drive pulleys (105), simplifies the process of securing the bolts (102). This design allows for easy access to the rear side of the mounting plate (104), ensuring a straight forward and efficient fixation process.

[0038] The present invention exhibits following advantages:
1) The present invention provides a motor mount structure that serves to reduce vibrations and offer a smooth ride.
2) The present invention provides a compact shaped motor mount structure at at centre of gravity location of the vehicle, reducing noise due to imbalance.
3) The present invention uses less wire length in connecting battery with the motor to avoid losses due to voltage drop.

[0039] While this invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims.
,CLAIMS:WE CLAIM:
1. A motor mount structure (100) for equal load distribution in a vehicle, comprising:
a) a mounting plate (104) detachably attached to a chassis of the vehicle, comprising a plurality of bolt holes (103) oriented at the periphery of a chain drive (105) pulley;
b) a motor (101) mounted over the mounting plate (104);
c) a plurality of bolts (102) for fastening the motor with the mounting plate through bolt holes (103); and
d) a battery (106) wiredly connected to the motor (101);
wherein,
• the motor (101) is positioned at the center of gravity location of the vehicle to provide equal distribution of load and smooth functioning of the vehicle; and
• the battery (106) is positioned in proximity to the motor (101) resulting in less wire requirement such that energy loss due to voltage drop is decreased.

2. The motor mount structure (100) as claimed in claim 1, wherein the vehicle is a two-wheeler vehicle.

3. The motor mount structure (100) as claimed in claim 2, the two-wheeler vehicle is selected from a petrol-based two-wheeler, diesel-based two-wheeler, and electric two-wheeler.

4. The motor mount structure (100) as claimed in claim 1, wherein the motor (101) is a permanent magnet motor.

5. The motor mount structure (100) as claimed in claim 1, wherein the material for mounting plate (104) is selected from a group consisting of brass, steel, aluminum, and acrylic.

6. The motor mount structure (100) as claimed in claim 1, wherein the bolts (102) are selected from a group consisting of M6, M8, M10 and M12.