FORM 2
THE PATENTS ACT, 1970
[39 OF 1970]
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See section 10; rule 13]
TITLE: “AIR DUCT ASSEMBLY FOR HEATING, VENTILATION, AND AIR
CONDITIONING (HVAC) UNIT”
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.
1

TECHNICAL FIELD
[001] The present disclosure relates to the field of automobiles. Particularly, but not exclusively, the present disclosure relates to a heating, ventilation, and air conditioning (HVAC) unit of a vehicle. Further, embodiments of the present disclosure disclose an air conditioning system for the HVAC unit of the vehicle.
BACKGROUND OF THE DISCLOSURE
[002] Generally, vehicles include a heating, ventilation, and air conditioning (HVAC) unit to selectively heat and cool a cabin of the vehicle. The HVAC unit of the vehicle employs turbomachines, such as blowers, within an air duct of the HVAC unit of the vehicle to draw air form the cabin of the vehicle. Such turbomachines aid in channelizing and/or pressurizing the warm air drawn from the cabin. The HVAC unit further includes a heat exchanger to condition (or cool) the air drawn from the cabin and the conditioned air is supplied back to the cabin for providing comfort to passengers of the vehicle.
[003] Generally, the HVAC unit of the vehicle is controlled or operated based on at least a portion of the cabin requiring conditioning of the air in the cabin. However, in the vehicles having comparatively large cabin volume, for example in Sports Utility Vehicles, Trucks, Buses, and the like, adequate conditioning may not be achieved. To cater such demands, such vehicles may be employed with a plurality of ports/vents at various locations, for the conditioned air to be supplied to the cabin from the HVAC unit. For such conditioning, air within the cabin is required to be drawn, conditioned, and supplied back for improved cooling.
[004] In some of the vehicles, due to the large cabin volume, a plurality of blowers may be employed at various locations for drawing air from the cabin. Further, some of the plurality of blowers may be positioned above passenger seats, where such seats may be elevated from a cabin floor for improving seating posture and comfort. Due to such positioning of some of the plurality of blowers, air from the cabin may be drawn by the plurality of blowers through at least one vent in a normal direction, i.e., perpendicular to the at least one vent. Such drawing of air from the cabin may generate noise within the air duct of the HVAC unit of the vehicle. In addition, due to such drawing of air from the cabin by some of the plurality of blowers, the air entering said blowers may be adapted to strike blades of said blowers orthogonally, i.e., in perpendicular direction to the at least one vent, which may amplify noise being generated from the plurality of blowers. Also, due to drawing of the air by the plurality of blowers from the cabin in a normal direction relative to the at least one vent, a volumetric intake of air to be

processed by each of the plurality of blowers may surge, which may increase the amount of noise within the cabin of the vehicle.
[005] The present disclosure is directed to overcome one or more limitations stated above or any other limitations associated with the aspect of the air conditioning system for the HVAC unit of the vehicle. The aspects of ‘Background’ should not be construed as a limitation of the present disclosure.
SUMMARY OF THE DISCLOSURE
[006] One or more shortcomings of the conventional air conditioning system are overcome by an air conditioning system for a heating, ventilation, and air conditioning (HVAC) unit, as described. Additional features and advantages are realized through the techniques of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered a part of the claimed disclosure.
[007] In a non-limiting embodiment of the disclosure, an air conditioning system for a heating, ventilation, and air conditioning (HVAC) unit of a vehicle is disclosed. The air conditioning system includes an enclosure coupled to a body of the vehicle. The enclosure includes a first panel and a second panel. The second panel is coupled to the first panel. The first panel includes a first section and a second section. The second section is at an inclined configuration relative to the first section, and the second section defines at least one first vent. Further, the air conditioning system includes at least one blower comprising a plurality of blades, disposed on one side of the second section. The at least one blower is configured to draw air from a cabin of the vehicle, in an inclined angle relative to the first section, through the at least one first vent. Furthermore, the drawn air is adapted to flow in a tangential direction onto the plurality of blades of the at least one blower.
[008] In an embodiment, the first section is defined with a plurality of second air vents.
[009] In an embodiment, the plurality of second air vents is defined with at least one primary air vent and at least one secondary air vent.
[0010] In an embodiment, the at least one primary air vent is configured to direct air from the cabin to the at least one blower.
[0011] In an embodiment, the inclination angle of the second section relative to the first section of the first panel is between 10 degrees to 70 degrees.

[0012] In an embodiment, the air drawn from the cabin, through the at least one first vent of the second section, strikes the plurality of blades of the at least one blower at an inlet angle ranging from 70 degrees to 95 degrees.
[0013] In an embodiment, the at least one blower is configured to draw air from the cabin through the at least one first vent and the at least one primary air vent, wherein a volumetric intake of air through the at least one first vent is equal to or greater than a volumetric intake of air through at least one primary air vent.
[0014] In an embodiment, the air conditioning system comprises at least one exhaust flow channel coupled to an outlet of the corresponding blower.
[0015] In an embodiment, the air conditioning system is fluidically connected to a secondary air condition unit.
[0016] In an embodiment, the secondary air condition unit includes a heat exchanger containing a refrigerant fluid. The heat exchanger is fluidically connected to the air conditioning system and configured to vaporise the refrigerant fluid. The secondary air condition unit further includes a compressor disposed downstream of the heat exchanger. The compressor is configured to compress the refrigerant fluid. Furthermore, the secondary air condition unit includes a condenser fluidically connected to the compressor. The condenser is configured to condense the compressed refrigerant fluid. In addition, the secondary air condition unit includes an expansion valve disposed between the heat exchanger and the condenser. The expansion valve is configured to expand the condensed refrigerant fluid to supply the cooled refrigerant fluid to the heat exchanger. The heat exchanger is configured to condition the air drawn from the cabin and to supply the conditioned air to the cabin through the at least one secondary air vent.
[0017] In an embodiment, the at least one blower of the air conditioning system draws air from the cabin in an inclined angle relative to the first section, through the at least one first vent. Such configuration may reduce noise generated by the at least one blower in the enclosure of the HVAC unit of the vehicle, thereby providing enhanced comfort to the passengers of the vehicle. Further, the drawn air is adapted to flow in the tangential direction onto the plurality of blades of the at least one blower of the air conditioning system. Such configuration of the air conditioning system mitigates amplification of noise by the at least one blower in the enclosure. Furthermore, no new tooling investment is required, since reduction in the noise is

achieved by ingeniously altering the at positioning of the air vents of the air conditioning system and modifying the flow of air drawn from the cabin.
[0018] The foregoing summary is illustrative only and is not intended to be in any way 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
[0019] The novel features and characteristics of the disclosure are set forth in the appended description. 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 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:
[0020] Fig. 1 illustrates a portion of a cabin of a vehicle with an air conditioning system positioned above a passenger seat, according to an embodiment of the present disclosure.
[0021] Fig. 2 illustrates a perspective exploded view of the air conditioning system of Fig. 1, according to an embodiment of the present disclosure.
[0022] Fig. 3 illustrates another perspective exploded view of the air conditioning system of Fig. 1, according to an embodiment of the present disclosure.
[0023] Fig. 4 illustrates a top view of the air conditioning system of Fig. 1, according to an embodiment of the present disclosure.
[0024] Fig. 5 is a block diagram of components of a heating, ventilation, and air conditioning (HVAC) unit, according to an embodiment of the present disclosure.
[0025] 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 assembly and the system illustrated herein may be employed without departing from the principles of the disclosure described herein.
DESCRIPTION

[0026] While the embodiments in the disclosure are subject to various modifications and alternative forms, specific embodiments thereof have been shown by the way of example in the figures and will be described below. However, it should be understood 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 alternatives falling within the scope of the disclosure.
[0027] It is to be noted that a person skilled in the art would be motivated from the present disclosure and modify various features of the air conditioning system, without departing from the scope of the disclosure. Therefore, such modifications are considered to be part of the disclosure. Accordingly, the drawings show only those specific details that are pertinent to understand the embodiments of the present disclosure, so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skilled in the art having benefit of the description herein. Also, the air conditioning system of the present disclosure may be employed in any kind of vehicles including commercial vehicles, passenger vehicles, two-wheeled vehicles, three-wheeled vehicles, and among others. However, no vehicle is illustrated in the drawings of the disclosure is for the purpose of simplicity.
[0028] The terms “comprises”, “comprising”, or any other variations thereof used in the disclosure, are intended to cover non-exclusive inclusions, such that a device, assembly, mechanism, system, and method 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 elements in a device proceeded by “comprises… a” does not, without more constraints, preclude the existence of other elements or additional elements in the device.
[0029] Embodiments of the present disclosure discloses an air conditioning system for a heating, ventilation, and air conditioning (HVAC) unit of a vehicle. The air conditioning system includes an enclosure coupled to a body of the vehicle. The enclosure includes a first panel and a second panel. The second panel is coupled to the first panel. The first panel includes a first section and a second section. The second section is at an inclined configuration relative to the first section, and the second section defines at least one first vent. Further, the air conditioning system includes at least one blower comprising a plurality of blades, disposed on one side of the second section. The at least one blower is configured to draw air from a cabin of the vehicle, in an inclined angle relative to the first section, through the at least one first vent. Furthermore, the drawn air is adapted to flow in a tangential direction onto the plurality of blades of the at least one blower.
6

[0030] The air conditioning system is fluidically connected to a secondary air condition unit. The secondary air condition unit includes a heat exchanger containing a refrigerant fluid. The heat exchanger is fluidically connected to the air conditioning system, configured to vaporise the refrigerant fluid. Further, the secondary air condition unit includes a compressor disposed downstream of the heat exchanger. The compressor is configured to compress the refrigerant fluid. Furthermore, the secondary air condition unit includes a condenser fluidically connected to the compressor. The condenser is configured to condense the compressed refrigerant fluid. In addition, the secondary air condition unit includes an expansion valve disposed between the heat exchanger and the condenser. The expansion valve is configured to expand the condensed refrigerant fluid to supply the cooled refrigerant fluid to the heat exchanger. The heat exchanger is configured to condition the air drawn from the cabin and to supply the conditioned air to the cabin through the at least one secondary air vent.
[0031] The following paragraphs describe the present disclosure with reference to Figs. 1 to 5. In the figures, the same element or elements which have similar functions are indicated by the same reference signs. With general reference to the drawings, the air conditioning system for HVAC unit of a vehicle is illustrated and generally identified with reference numeral (100). The air conditioning system (100) may be operatively associated with the HVAC unit (300) of the vehicle [not shown]. It will be understood that the teachings of the present disclosure are not limited to any particular vehicle and may be employed in a myriad of category of vehicles including, but not limited to, commercial vehicles, passengers, vehicles, and among others.
[0032] As illustrated in Fig. 1, the air conditioning system (100) may be disposed in an upper region of the cabin. In an embodiment, the air conditioning system (100) may be disposed above a passenger seat of the vehicle. The air conditioning system (100) is configured to draw air from a cabin (201) of the vehicle. The air conditioning system (100) is further configured to condition the drawn air (also referred as “air drawn” interchangeably). Furthermore, the air conditioning system (100) is adapted to supply the conditioned air to the cabin (201). The air conditioning system includes an enclosure (101) coupled to a body of the vehicle. In an embodiment, the enclosure (101) may be coupled to the roof of the vehicle by at least one of fastening, press fitting, cotter joining, welding, soldering, riveting, an adhesive agent, and among others. Further, the enclosure (101) comprises a first panel (1) and a second panel (2). The second panel (2) is coupled to the first panel (1). Furthermore, the air conditioning system (100) includes at least one blower (3) configured to draw air from a cabin (201) of the vehicle.

[0033] As illustrated in Figs. 2 to 4, the first panel (1) includes a first section (1a) and a second section (1b). The second section (1b) is at an inclined configuration relative to the first section (1a) of the first panel (1). Such inclination of the second section (1b) relative to the first section (1a) may be away from the cabin (201) and towards the second panel (2). The inclination angle of the second section (1b) relative to the first section (1a) of the first panel (1) may be between 10 degrees to 70 degrees. Such inclination of the second section (1b) may be configured to divide the first section (1a) into two partitions within the first panel (1). Further, the second section (1b) defines at least one first vent (5), the second section (1b) is configured to direct the air drawn from the cabin (201) by the at least one blower (3).
[0034] Further, the at least one blower (3) of the air conditioning system (100) comprises a plurality of blades. The at least one blower (3) is disposed on one side of the second section (1b). The at least one blower (3) is configured to draw air from a cabin (201) of the vehicle. Such drawing of air is in an inclined angle relative to the first section (1a). Also, such drawing is through the at least one first vent (5). Furthermore, the air drawn from the cabin (201) through the at least one first vent (5) of the air conditioning system (100) is adapted to flow in a tangential direction onto the plurality of blades of the at least one blower (3). In an embodiment, the air drawn from the cabin (201), through the at least one first vent (5) of the second section (1b), may strike the plurality of blades of the at least one blower (3) at an inlet angle ranging from 70 degrees to 95 degrees. The configuration of the air conditioning system (100) reduces noise generated while drawing of the air from the cabin by the at least one blower (3) of the HVAC unit of the vehicle. Further, striking of drawn air to the plurality of blades of the at least one blower (3) in the tangential direction mitigates amplification of noise in the enclosure (101) the air conditioning system (100).
[0035] In an illustrative exemplary embodiment as depicted in Fig. 3, the air conditioning system (100) includes two blowers (3), in which one blower (3) is disposed on the left side of the second section (1b) and the other blower (3) is disposed on the right side of the second section (1b). Further, both blower (3) is configured to generate a suction effect by creating vacuum in an inlet (3a) of both blower (3) and towards the cabin (201). Due to such suction effect, the air drawn from the cabin (201) through the at least one first vent (5) is drawn towards the inlet (3a) of both blower (3) (indicated by a reference numeral “6”). The drawn air that enters both blower (3) through the inlet (3a) strikes the plurality of blades of both blower (3) in the tangential direction. In addition, the air conditioning system (100) includes at least one exhaust flow channel (7) coupled to an outlet (3b) of the corresponding blower (3). The air

conditioning system (100) is fluidically connected to a heat exchanger (202) of a secondary air condition unit (200) of the HVAC unit (300) The at least one blower (3) is configured to discharge the drawn air through the outlet (3b) and the at least one exhaust flow channel (7) to the heat exchanger (202). The heat exchanger (202) is configured to condition the drawn air.
[0036] The first section (1a) is defined with a plurality of second air vents (4). The plurality of second air vents (4) is defined with at least one primary air vent (4a) and at least one secondary air vent (4b). In an embodiment, the second section (1b) defined with the at least one first vent (5) is configured to direct air from the cabin (201) to the at least one blower (3). The first section (1a) defined with the at least one primary air vent (4a) and the at least one secondary air vent (4b) is configured to direct conditioned air from the heat exchanger (202) to the cabin (201). In an alternative embodiment, the second section (1b) defined with the at least one first vent (5) and the first section (1a) defined with the at least one primary air vent (4a) are configured to direct air from the cabin (201) to the at least one blower (3). Further, the first section (1a) defined with the at least one secondary air vent (4b) is configured to direct conditioned air from the heat exchanger (202) to the cabin (201). Furthermore, a volumetric intake of air (i.e., the amount of air drawn from the cabin) through the at least one first vent (5) is equal to or greater than a volumetric intake of air through at least one primary air vent (4a), due to which the noise generated by the at least one blower (3) in the enclosure (101) may be reduced.
[0037] As illustrated in Fig. 5, the air conditioning system (100) is fluidically connected to the secondary air condition unit (200). The secondary air condition unit (200) includes the heat exchanger (202) containing a refrigerant fluid. The heat exchanger (202) is fluidically connected to the air conditioning system (100). The heat exchanger (202) receives air drawn from the cabin (201) through the at least one exhaust flow channel (7) of the air conditioning system (100). The heat exchanger (202) is configured to exchange the heat between the drawn air and the refrigerant fluid. Such exchange of heat increases the temperature of the refrigerant fluid and thereby vaporising the refrigerant fluid. The heat exchanger (202) may be an evaporator. The secondary air condition unit (200) further includes a compressor (203) disposed downstream of the heat exchanger (202). The compressor (203) is configured to compress the vapourised refrigerant fluid received from the heat exchanger (202), to further increase the temperature and also increase the pressure of the vaporised refrigerant fluid.
[0038] The secondary air condition unit (200) includes a condenser (204) fluidically connected to the compressor (203). The condenser (204) is configured to condense and cool the compressed refrigerant fluid received from the compressor (203). Further, the condenser (204)

may be fluidically connected to at least one of a fan, a blower, and among others (not shown) configured to cool the compressed refrigerant fluid in the condenser (204) by forced convection. In addition, the secondary air condition unit (200) includes an expansion valve (205) disposed between the heat exchanger (202) and the condenser (204). The expansion valve (205) is configured to expand the condensed refrigerant fluid, to decrease the temperature and the pressure of the condensed refrigerant fluid, and to supply the cooled refrigerant fluid to the heat exchanger (202). The heat exchanger (202) is configured to condition the air drawn from the cabin (201) and to supply the conditioned air to the cabin (201) through the at least one secondary air vent (4b). In other words, the air drawn from the cabin (201) that enters the heat exchanger (202) through the at least one exhaust flow channel (7), cools down due to absorption of heat present in the drawn air by the refrigerant fluid. The cooled air may be circulated back to the cabin (201) by the air conditioning system (100).
[0039] Such conditioning of the cabin air may be based on manual actuation of the actuator positioned proximal to a passenger or a driver. The actuator may be a rotatable knob indicating the level of cooling and heating, or a touch screen displaying the level of cooling and heating or among others. Alternatively, the air conditioning system (100) may include at least one sensor (not shown) positioned within the cabin (201). The at least one sensor may be configured to measure temperature of the air within the cabin. The air conditioning system (100) may further include a control unit (not shown) configured to receive the temperature of the air within the cabin measured by the at least one sensor. Further, the control unit may be fed with a pre¬set temperature by the passenger or the driver. In an exemplary embodiment, the pre-set temperature may be 25℃. The control unit may compare the pre-set temperature with the measured temperature of the air within the cabin. Furthermore, the control unit may be configured to automatically actuate the operation of the at least one blower (3), based on the detection of difference in the pre-set temperature and the measured temperature, to draw the air from the cabin, condition the drawn air by the heat exchanger (202) and to supply the conditioned air back to the cabin (201) through the at least one secondary air vent (4b).
[0040] Table 1 illustrates a level of noise measured at different rows of the vehicle having a conventional air conditioning (AC) system using a numerical simulation, i.e., computational fluid dynamics (CFD) with transient solver. Table 2 illustrates a level of noise measured in the different rows of the vehicle having the air conditioning system (100) of the present disclosure using a numerical simulation. The test/simulation conditions are idle condition of an engine, cooling set to maximum, fully opening all the vents, and recirculation (supplying the

conditioned air back to the cabin) is ON. Further, a front AC is set to be in 4th speed and a rear AC is set to be in 3rd speed. The noise values are measured at ear level of the seated passengers. The preferred maximum level of noise for optimum comfort of the passengers would be 72 +/-1 dBA. Generally, A-weighted decibel (dBA or dB(A)) is an expression of the relative loudness of sounds as perceived by the human ear. The level of noise is measured in three locations proximal to a row in which driver (DR) and co-driver (CDR) are seated, three locations in each of a first, a second, and a third rows of the vehicle, and four locations in a fourth row of the vehicle which is in an elevated condition. In the DR and CDR row, two locations are in a left hand (LH) side and one location is in a right hand (RH) side, relative to the forward direction of the vehicle. Whereas, in each of the first, the second, and the third rows, one location is in the LH side and two locations are in the RH side of the vehicle. In the fourth row, two locations are in the LH side and two locations are in the RH side of the vehicle.

Row Target LH Side(dBA) RH side (dBA)
DR& CDR Row 71 68.1 67.8 68.1
la row 70 (+1) 66.4 66.5 66.5
2nd row
67.8
67.3 67.8
3"*row
70.8
70.2 70.8
4th row
75.2 76.8 76.8 76.4
Table 1: Noise measured in conventional air conditioning system.

Row Target LH Side(dBA) RH side (dBA)
DR & CDR Row 71 68.1 68.0 68.1
1st row 70 (+1) 66.5 67.0 67.2
2nd row
67.2
67.9 67.7
3 rd row
70.3
70.5 69.9
4th row
71.6 70.5 71.0 71.9
Table 2: Noise measured in the air conditioning system (100) of the present disclosure.
[0041] As illustrated in Table 1, the level of noise measured in the DR and CDR row, the first, the second, and the third rows of the conventional air conditioning system are less than 72 dBA, which are within the permissible level of noise. However, the level of noise measured/generated in the fourth row of the conventional air conditioning system in which the air is drawn in a normal direction, i.e., perpendicular to the at least one vent, is at least 75 dBA, exceeding the permissible level of noise, i.e., 72 +/- 1 dBA. However, configuration of the air conditioning system (100) of the present disclosure enables the at least one blower (3) to draw air from the cabin (201) in an inclined angle relative to the first section (1a), through the at least one first vent (5) and the at least one primary air vent (4a). Such configuration of the air conditioning system (100) of the present disclosure reduces noise generated in the fourth row of the vehicle to a value less than 72 dBA, which is within the permissible level.
[0042] In an embodiment, the at least one blower (3) of the air conditioning system (100) draws air from the cabin (201) in an inclined angle relative to the first section (1a), through the at least one first vent (5). Such configuration may reduce noise generated by the at least one blower (3) in the enclosure (101) of the HVAC unit of the vehicle, thereby providing enhanced comfort to the passengers of the vehicle. Further, the drawn air is adapted to flow in the tangential direction onto the plurality of blades of the at least one blower (3) of the air conditioning system (100). Such configuration of the air conditioning system (100) mitigates amplification of noise by the at least one blower (3) in the enclosure (101). Furthermore, no new tooling investment is required, since reduction in the noise is achieved by ingeniously

altering the at positioning of the air vents of the air conditioning system (100) and modifying the flow of air drawn from the cabin (201).
EQUIVALENTS
[0043] 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.
[0044] 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.
[0045] 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 following claims.

REFERRAL NUMERICALS
Numerical Particulars
1 First panel
1a First section
1b Second section
2 Second panel
3 Blower
3a Inlet of the blower
3b Outlet of the blower
4 Plurality of second air vents
4a At least one primary air vent
4b At least one secondary air vent

5 At least one first vent
6 Flow of the drawn air in a tangential direction
7 At least one exhaust flow channel
100 Air conditioning system
101 Enclosure
200 HVAC unit
201 Cabin of a vehicle
202 Heat exchanger
203 Compressor
204 Condenser
205 Expansion valve
A-A Longitudinal axis of the blower

I/We claim:
1. An air conditioning system (100) for a heating, ventilation, and air conditioning
(HVAC) unit (300) of a vehicle, the air conditioning system (100) comprising:
an enclosure (101) coupled to a body of the vehicle, the enclosure (101)
comprises a first panel (1) and a second panel (2), the second panel (2) is coupled to the
first panel (1), wherein the first panel (1) comprises:
a first section (1a) and a second section (1b), wherein the second section (1b) is at an inclined configuration relative to the first section (1a), and the second section (1b) defines at least one first vent (5); and at least one blower (3) comprising a plurality of blades, disposed on one side of
the second section (1b);
wherein the at least one blower (3) is configured to draw air from a cabin (201)
of the vehicle, in an inclined angle relative to the first section (1a), through the at least
one first vent (5), and
wherein the drawn air is adapted to flow in a tangential direction onto the
plurality of blades of the at least one blower (3).
2. The air conditioning system (100) as claimed in claim 1, wherein the first section (1a) is defined with a plurality of second air vents (4).
3. The air conditioning system (100) as claimed in claim 2, the plurality of second air vents (4) is defined with at least one primary air vent (4a) and at least one secondary air vent (4b).
4. The air conditioning system (100) as claimed in claim 3, wherein the at least one primary air vent (4a) is configured to direct air from the cabin (201) to the at least one blower (3).
5. The air conditioning system (100) as claimed in claim 1, wherein the inclination angle o f t he s e c o nd s e c t i o n ( 1 b ) r e l at i v e t o th e fi rst s e c t i o n (1 a ) o f the first panel (1) is between 10 degrees to 70 degrees.
6. The air conditioning system (100) as claimed in claim 1, wherein the air drawn from the cabin (201), through the at least one first vent (5) of the second section (1b), strikes

the plurality of blades of the at least one blower (3) at an inlet angle ranging from 70 degrees to 95 degrees.
7. The air conditioning system (100) as claimed in claim 3, wherein the at least one blower (3) is configured to draw air from the cabin (201) through the at least one first vent (5) and the at least one primary air vent (4a), wherein a volumetric intake of air through the at least one first vent (5) is equal to or greater than a volumetric intake of air through at least one primary air vent (4a).
8. The air conditioning system (100) as claimed in claim 1, the air conditioning system (100) comprises at least one exhaust flow channel (7) coupled to an outlet (3b) of the corresponding blower (3).
9. The air conditioning system (100) as claimed in claim 1, wherein the air conditioning system (100) is fluidically connected to a secondary air condition unit (200).
10. The air conditioning system (100) as claimed in claim 9, wherein the secondary air condition unit (200) comprises:
a heat exchanger (202) comprising a refrigerant fluid, fluidically connected to the air conditioning system (100), configured to vaporise the refrigerant fluid;
a compressor (203) disposed downstream of the heat exchanger (202), the compressor (203) configured to compress the refrigerant fluid;
a condenser (204) fluidically connected to the compressor (203), the condenser (204) configured to condense the compressed refrigerant fluid; and
an expansion valve (205) disposed between the heat exchanger (202) and the condenser (204), the expansion valve (205) configured to expand the condensed refrigerant fluid to supply the cooled refrigerant fluid to the heat exchanger (202);
wherein the heat exchanger (202) is configured to condition the air drawn from
the cabin (201) and to supply the conditioned air to the cabin (201) through the at least
one secondary air vent (4b).