Description:TECHNICAL FIELD
[001] The embodiments herein generally relate to a vehicular internal air exhaust system, more particularly to a hot air ventilation mechanism integrated with an air conditioning system of a vehicle to discharge a hot air out of the vehicle and thereby reduce a temperature inside the vehicle and a method of controlling a temperature of a vehicle cabin.
BACKGROUND
[002] Along with popularizing of automobile, a requirement of comfort level of people to an environment inside a car is more and more high. In hot summer, vehicle is parked in for a long time under burning sun and is exposed to the sun, and environment inside the vehicle is very sultry, and automotive seat surface temperature can become very hot, in some cases the temperature inside the vehicle cabin reaches above 100° C. The reason is that the vehicle is almost closed, and the air inside the vehicle is heated rapidly under the sunlight. And when the vehicle engine is in the situation that being not activated, existing air conditioner cannot be realized for reducing the vehicle interior temperature. Even if the air conditioner is activated it is difficult to reduce the vehicle interior temperature rapidly after the vehicle is started. While driver/passenger(s) enters such vehicle, particularly sitting on boiling hot seat, can feel uncomfortable. Therefore, there exists a need to prepare the cabin of the vehicle in advance with a lowered temperature, to improve the driving comfort.
[003] Therefore, there exists a need for a hot air ventilation mechanism integrated with an air conditioning system of the vehicle to discharge a hot air out of the vehicle and thereby reduce a temperature inside the vehicle and which obviates the aforementioned drawbacks.
OBJECTS
[004] The principal object of an embodiment herein is to provide a hot air ventilation mechanism integrated with an air conditioning system of a vehicle to discharge a hot air out of the vehicle and thereby reduce a temperature inside a cabin of the vehicle.
[005] Another object of an embodiment herein is to provide the hot air ventilation mechanism which includes an additional air outlet duct and a flap for diverting the hot air from the cabin of the vehicle.
[006] Another object of an embodiment herein is to provide the hot air ventilation mechanism which is configured to reduce a cabin temperature equivalent to an outside temperature.
[007] Another object of an embodiment herein is to provide the hot air ventilation mechanism which is operated using a controller which is configured to receive a user input through an input signal/command from a user.
[008] Another object of an embodiment herein is to provide the hot air ventilation mechanism which facilitates comfortable drive for a driver/passenger(s) of the vehicle.
[009] Another object of an embodiment herein is to provide the hot air ventilation mechanism, which is simple in construction and inexpensive.
[0010] Another object of an embodiment herein is to provide a method of controlling a temperature of a vehicle cabin.
[0011] These and other objects of the embodiments herein will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following descriptions, while indicating embodiments and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiments herein without departing from the spirit thereof, and the embodiments herein include all such modifications.
BRIEF DESCRIPTION OF DRAWINGS
[0012] The embodiments of the invention are illustrated in the accompanying drawings, throughout which like reference letters indicate corresponding parts in the various figures. The embodiments herein will be better understood from the following description with reference to the drawings, in which:
[0013] Fig.1 depicts a block diagram of operation of a conventional air conditioning system, according to an embodiment as disclosed herein;
[0014] Fig. 2 depicts a block diagram of a hot air ventilation mechanism showing discharge of hot air from cabin of a vehicle to atmosphere, according to an embodiment as disclosed herein;
[0015] Fig. 3 depicts a block diagram showing normal working of air conditioning system with the hot air ventilation mechanism, according to the embodiment as disclosed herein; and
[0016] Fig. 4 is a flowchart depicting a method of controlling a temperature of a cabin of a vehicle with an air conditioning system comprising a hot air ventilation mechanism, according to the embodiment as disclosed herein.
DETAILED DESCRIPTION
[0017] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
[0018] The embodiments herein achieve a hot air ventilation mechanism integrated with an air conditioning system of a vehicle to discharge a hot air out of the vehicle and thereby reduce a temperature inside a cabin of the vehicle. Further, the embodiments herein achieve the hot air ventilation mechanism which includes an additional air outlet duct and a flap for diverting the hot air from the cabin of the vehicle. Furthermore, the embodiments herein achieve the hot air ventilation mechanism which is configured to reduce a cabin temperature equivalent to an outside temperature. Additionally, the embodiments herein achieve the hot air ventilation mechanism which is operated using a controller which is configured to receive a user input through an input signal/command from a user. Moreover, the embodiments herein achieve the hot air ventilation mechanism which facilitates comfort drive for a driver/passenger(s) of the vehicle. Also, the embodiments herein achieve the hot air ventilation mechanism, which is simple in construction and inexpensive. Referring now to the drawings, and more particularly to Fig. 1 through Fig. 4, where similar reference characters denote corresponding features consistently throughout the figures, there are shown embodiments.
[0019] Fig.1 depicts a block diagram of operation of a conventional air conditioning system (100’), according to an embodiment as disclosed herein. In an embodiment, the conventional air conditioning system (100’) includes an atmospheric air inlet (101), a cabin air inlet (102), a blower (103) provided in communication with the atmospheric air inlet (101), the cabin air inlet (102), and a plurality of air vents (106) provided in communication with the blower (103) of the vehicle. The air conditioning system (100) is operated by a controller (not shown) of the vehicle. In an embodiment, the controller is an electronic control unit (ECU) of the vehicle. The controller operates the air conditioning system (100’) to reduce a temperature inside a cabin of the vehicle. The air conditioning system (100’) is operated to recirculate air within the cabin using the blower (103) by one of circulating air from outside atmosphere through the atmospheric air inlet (101) and by recirculating air within the cabin by the cabin air inlet (102). The air vents (106) are provided inside the cabin of the vehicle to discharge recirculated air from the blower (103). However, when the vehicle is parked for a long time and is exposed to the sun, the temperature inside the vehicle raises to hot degree, which may not be comfortable for a driver/passenger to drive the vehicle immediately. The reason is that the vehicle is almost closed, and the air inside the vehicle is heated rapidly under the sunlight.
[0020] Fig. 2 depicts a block diagram of a hot air ventilation mechanism (10) integrated to an air conditioning system (100) of the vehicle, showing discharge of the hot air from the cabin of the vehicle to the atmosphere, according to an embodiment as disclosed herein. The hot air ventilation mechanism (10) includes at least one air outlet duct (104) (also referred to as duct in this description), a flap (105) of predetermined dimension, and a controller (not shown). The air outlet duct (104) forms a passage for discharging the hot air from the vehicle cabin to outside atmosphere. The air outlet duct (104) is provided in communication with the blower (103) of the air conditioning system (100) at one end (104A) and the other end (104B) of the air outlet duct (104) is provided in communication with outside atmosphere. The other end (104B) of the duct (104) is connected to a planar applique (not shown) of the vehicle, wherein the hot air from the air outlet duct (104) is discharged into atmosphere through the planar applique.
[0021] Fig. 3 depicts a block diagram showing normal working of air conditioning system with the hot air ventilation mechanism (10), according to the first embodiment as disclosed herein. Further, the hot air ventilation mechanism (10) includes the flap (105) which is configured to selectively close one end (104A) of the air outlet duct (104) and a passage (106A) between the blower (103) and the air vents (106). The flap (105) is configured to seal the one end (104A) of the air outlet duct (104) so that air from the blower is recirculated inside the cabin through the air vents (106) when the controller detects a normal cabin temperature when the air conditioning system (100) is activated. In the embodiment of the present invention, the normal predetermined temperature inside the cabin of the vehicle ranges from 19°C to 33°C. The normal temperature of the vehicle cabin can be set by the user. The flap (105) is configured to close/seal the passage (106A) between the blower (103) and the air vents (106) when the controller detects a predetermined temperature inside the cabin of the vehicle, thereby facilitating in drawing hot air from the cabin through the cabin air inlet (102) and discharging the hot air to atmosphere. In the present embodiment of the invention, if the vehicle cabin temperature is more than 33°C, then the controller facilitates in drawing hot air from the cabin through the cabin air inlet (102) and discharge the hot air to atmosphere. However, this temperature can be set by the user based on the requirement and climatic conditions.
[0022] Furthermore, the hot air ventilation mechanism (10) includes the controller (not shown) which is configured to actuate the hot air ventilation mechanism (10) when a user provides an input signal/command. The controller is provided in communication with a wireless transmitter and a user interface such that the user may provide the input/command to actuate the hot air ventilation mechanism (10). Upon receiving the input signal, the controller initiates a power supply to operate the blower (103) and the flap (105) to discharge the hot air from the cabin of the vehicle to atmosphere. The controller operates the flap (105) to close the passage (106A) between the blower (103) and the air vents (106) of the vehicle. The controller operates another flap (not shown) to close the atmospheric air inlet (101) and open the cabin air inlet (102). Further, the controller operates the blower (103), to divert the hot air drawn from the cabin of the vehicle through the cabin air inlet (102) to atmosphere through the air outlet duct (104). In an embodiment, a button may be provided on a key fob of the vehicle to provide the input signal to the controller to actuate the hot- air ventilation mechanism (10). In another embodiment, the input signal can be provided from a mobile application by the user.
[0023] In an embodiment, the blower (103) is operated by a motor (not shown) powered by an electric power of the vehicle. In the embodiment, the electric power is received from vehicle battery. Further, the air conditioning system (100) comprises a sensing unit disposed within the vehicle at a predetermined position and configured to sense the cabin temperature and ambient temperature.
[0024] Fig. 4 is a flowchart depicting a method of controlling a temperature of a cabin of a vehicle with an air conditioning system comprising a hot air ventilation mechanism, according to the embodiment as disclosed herein. The method (200) includes sensing an input signal/command, by a controller of said vehicle, to actuate said hot air ventilation mechanism (10), through a user input (at step 202). Further, the method (200) includes closing an atmospheric air inlet (101) and opening a cabin air inlet (102) of said air conditioning system (100) of said vehicle, by said controller (at step 204). Furthermore, the method (200) includes actuating a flap (105) to open an air outlet duct (104) and close a passage (106A) between a blower (103) and a plurality of air vents (106) (at step 206). Additionally, the method (200) includes operating said blower (103), by said controller, to divert hot air drawn from a cabin of said vehicle through said cabin air inlet (102) to atmosphere through said air outlet duct (104) (at step 208).
[001] The technical advantages provided by the embodiments herein includes providing better driving comfort for driver/passengers, reduce load on air conditioning system, reduce fuel cost, easy to manufacture and assemble and inexpensive.
[0025] The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.
 
, Claims:1. A hot air ventilation mechanism (10) integrated to an air conditioning system (100) of a vehicle, said air conditioning system (100) having an atmospheric air inlet (101), a cabin air inlet (102), a blower (103) provided in communication with said atmospheric air inlet (101), said cabin air inlet (102), and a plurality of air vents (106) of said vehicle, comprising:
at least one air outlet duct (104) provided in communication with said blower (103);
a flap (105) to selectively close one end (104A) of said duct (104) and a passage (106A), provided between said blower (103) and said air vents (106); and
a controller in communication with said blower (103) and said flap (105),
wherein,
said controller is configured to detect an input signal/command or a predetermined temperature inside a cabin of said vehicle and actuate said blower (103) and said flap (105) to discharge hot air from a cabin of said vehicle to atmosphere.

2. The hot air ventilation mechanism (10) as claimed in claim 1, wherein, said hot air ventilation mechanism (10) is operated when a cabin temperature is higher than ambient temperature, said controller is configured to:
close said atmospheric air inlet (101) and open said cabin air inlet (102);
actuate said flap (105) to close said passage (106A) between said blower (103) and said air vents (106); and
divert hot air drawn from said cabin by said cabin air inlet (102) to said air outlet duct (104) through said blower (103),
wherein said hot air is discharged outside said vehicle via said air outlet duct (104).

3. The hot air ventilation mechanism (10) as claimed in claim 1, wherein, said controller is configured to:
actuate said flap (105) to open said passage (106A) between said blower (103) and said air vents (106) and close one end (104A) of said air outlet duct (104); and
open one of said cabin air inlet (102) and atmosphere air inlet (102) based on a user input, when said controller detects a predetermined temperature inside said cabin of said vehicle.

4. The hot air ventilation mechanism (10) as claimed in claim 1, wherein said blower (103) is operated by a motor powered by an electric power of said vehicle, said electric power is received from a vehicle battery.

5. The hot air ventilation mechanism (10) as claimed in claim 1, wherein said air conditioning system (100) comprises a sensing unit disposed within the vehicle and configured to sense the cabin temperature and ambient temperature.

6. The hot air ventilation mechanism (10) as claimed in claim 1, wherein said hot air ventilation mechanism (10) includes a wireless transmitter and a user interface for actuating the hot-air ventilation mechanism (10).

7. The hot air ventilation mechanism (10) as claimed in claim 1, wherein a button is provided on a key fob of said vehicle to actuate said hot- air ventilation mechanism (10).

8. The hot air ventilation mechanism (10) as claimed in claim 1, wherein an other end (104B) of said duct (104) is connected to a planar applique of said vehicle, wherein said hot air from said air outlet duct (104) is discharged into atmosphere through said planar applique.

9. A method (200) of controlling a temperature of a cabin of a vehicle with an air conditioning system (100) comprising a hot air ventilation mechanism (10), the method (200) comprising:
sensing an input signal/command, by a controller of said vehicle, to actuate said hot air ventilation mechanism (10), through a user input;
closing an atmospheric air inlet (101) and opening a cabin air inlet (102) of said air conditioning system (100) of said vehicle, by said controller;
actuating a flap (105) to open an air outlet duct (104) and close a passage (106A) between a blower (103) and a plurality of air vents (106); and
operating said blower (103), by said controller, to divert hot air drawn from a cabin of said vehicle through said cabin air inlet (102) to atmosphere through said air outlet duct (104).

10. The method (200) as claimed in claim 9, wherein the method (200) comprises:
actuating, by said controller, to operate said blower (103) and said flap (105) to discharge hot air from said cabin of said vehicle to said atmosphere.