DESC:TECHNICAL FIELD
[0001] The present subject matter described herein generally relates to a vehicle, and particularly but not exclusively relates to a headlamp assembly of a vehicle.
BACKGROUND
[0002] Typically, vehicles such as motorcycles, scooters, trike, autorickshaws etc., include a cowl assembly supported by a head tube. The cowl assembly of a conventional vehicle houses at least a portion of a handlebar member, a Front position lamp unit, a pair of front turn signal lamps, and a headlamp assembly.
[0003] Conventionally, the headlamp assembly is electrically operated, positioned in pair, usually round in shape, consisting of parabolic reflecting surface, and is disposed on a front portion of the vehicle, to illuminate the road ahead of the vehicle, when vehicle is in moving state, by using a distributed beam of light. The light is projected and the beam is focused on the road, by the means of simple symmetric round reflecting surface.
[0004] Usually, the headlamp assembly is required to produce a low and a high beam, which may be produced by multiple pairs of single-beam lamps or by a pair of dual-beam lamps, or a mix of single-beam and dual-beam lamps. The high beam cast most of its light straight ahead, maximizing seeing distance but producing too much glare for safe use, when other vehicles are present on the road. Because there is no special control of upward light, the high beam also causes back dazzle from fog, rain and snow due to the retro reflection of the water droplets. The low beam has stricter control of the upward light, and direct most of its light downward and either rightward (in right-traffic countries) or leftward (in left-traffic countries), to provide forward visibility without excessive glare or back dazzle.

BRIEF DESCRIPTION OF THE DRAWINGS
[0005] The detailed description is described with reference to a headlamp assembly of a saddle type two wheeled vehicle along with the accompanying figures. The same numbers are used throughout the drawings to reference like features and components.
[0006] Figure 1 illustrates a perspective view of a vehicle comprising a headlamp assembly when viewed from left hand side of the rider while rider is in riding position along with few internal parts of the vehicle for clarity of explanation, in accordance with an embodiment of the present invention.
[0007] Figure 2 illustrates a perspective view of the headlamp assembly in accordance with an embodiment of the present subject matter.
[0008] Figure 3a to Figure 3d illustrate multiple exploded views of the headlamp assembly in accordance with an embodiment of the present subject matter.
[0009] Figure 4a to Figure 4b illustrate front and rear of the lighting means of the headlamp assembly in accordance with an embodiment of the present subject matter.
[00010] Figure 5a illustrate a perspective view of the bezel of the headlamp assembly in accordance with an embodiment of the present subject matter.
[00011] Figure 5b illustrate the rear view of the bezel of the headlamp assembly in accordance with an embodiment of the present subject matter.
[00012] Figure 6 illustrate some internal components of the headlamp assembly housed within the inner cowl member, in accordance with an embodiment of the present subject matter.
[00013] Figure 7a to Figure 7b illustrate some internal components of the headlamp assembly housed within the inner cowl member, in accordance with an embodiment of the present subject matter.
[00014] Figure 8 illustrate the heat sink and the first printed circuit board of the headlamp assembly housed within the inner cowl member, in accordance with an embodiment of the present subject matter.
[00015] Figure 9 illustrate a flow chart, in accordance with an embodiment of the present subject matter.
DETAILED DESCRIPTION
[00016] Usually, the headlamp assembly is required to produce a low and a high beam, which may be produced by multiple pairs of single-beam lamps or by a pair of dual-beam lamps, or a mix of single-beam and dual-beam lamps.
[00017] In some known arts, Light Emitting Diodes (LEDs) are mounted on a Printed Circuit Board (PCB) and used as a light source. In some other vehicles, a reflector is used to enhance the light emitted by the Light Emitting Diodes (LEDs) by means of reflection. Some known arts use a single stretch of reflector in a single compartment, that acts as both high beam reflector and low beam reflector.
[00018] In some other known arts, the reflector itself is split into two separate reflectors placed in two separate compartments, for example, a low beam reflector compartment and a high beam reflector compartment. Both compartments usually have separate light source, for example, Light Emitting Diodes (LEDs) integrated to Printed Circuit Board (PCB). Each light source can use a separate heat sink or the same heat sink to effectively dissipate the heat produced by the light sources.
[00019] In addition to the headlamp assembly, other types of lamps, for example a Front position lamp (FPL) and a Daytime running lamp (DRL) are also provided on a vehicle front portion for various purposes. The usage of the Daytime running lamp (DRL) is a homologation requirement. This is because, the Daytime running lamp (DRL) needs to be always kept “ON” whenever the vehicle is “ON”. The continuous usage of the Daytime running lamp (DRL) ensures all time visibility of the vehicle to other riders, especially in fog conditions on hilly areas.
[00020] The Front position lamp (FPL) is inherently designed to use minimum possible electric energy, so that they can be left “ON” when the vehicle is parked, especially during night time. This is done for enhancing a standing-vehicle conspicuity. In some known arts, when viewed from front, these front position lamps (FPL) are low-intensity lamps that are designed to indicate to road users the presence and widthwise dimensions of the vehicle during parked condition.
[00021] Some known arts disclose about the Front position lamp (FPL) and the Daytime running lamp (DRL) being separate lamps. Other known arts disclose about the same lamp configured to function both as the Front position lamp (FPL) and the Daytime running lamp (DRL) on need basis.
[00022] Other known arts disclose about the Front position lamp (FPL) and/or the Daytime running lamp (DRL) being separately disposed in proximity of a cowl of the headlamp assembly. Some other known arts disclose about achieving a unique look of the headlamp assembly by approaching a design synergy between the Daytime running lamp (DRL) and the high or low beam assembly of the headlamp assembly. However, such separate headlamp assembly and separate Front position lamp (FPL) and/or the Daytime running lamp (DRL) increases the overall part count of the vehicle, which further increases the overall cost of the vehicle. Along with it a separate heat sink is required to effectively manage the heat dissipated by the Front position lamp (FPL) and/or the Daytime running lamp (DRL), which further increases the part count and overall cost.
[00023] Moreover, such vehicles tend to become bulkier on the front portion, because of the excess space required to accommodate the headlamp assembly and the Front position lamp (FPL) and/or the Daytime running lamp (DRL) separately. Moreover, since the headlamp assembly and the Front position lamp (FPL) and/or the Daytime running lamp (DRL) are accommodated separately, considerable time is required to service the lamps separately. . Moreover, manufacturability complexity increases because of the headlamp assembly and accommodate the headlamp assembly and the Front position lamp (FPL) and/or the Daytime running lamp (DRL) manufactured separately.
[00024] Some other known arts disclose about vehicles having the Front position lamp (FPL) and/or the Daytime running lamp (DRL) being provided within the headlamp assembly of the vehicle. In such vehicles the Front position lamp (FPL) and/or the Daytime running lamp (DRL) is usually disposed at the bottom portion of the headlamp assembly.
[00025] In such vehicles, since the Front position lamp (FPL) and/or the Daytime running lamp (DRL) is accommodated within the headlamp assembly, thereby the overall size of the headlamp assembly increases and the headlamp assembly becomes bulkier, further making the front portion of the vehicle bulkier. Since the headlamp assembly is usually mounted onto the front forks of the vehicle, thereby difficulty while cornering is experienced in vehicles having bulkier headlamp assembly. Moreover, drag force is experienced more on the front portion of the vehicle, if the headlamp assembly of the vehicle is bulky. Because of the excess drag force acting on the vehicle the overall mileage of the vehicle is reduced. Moreover, a separate heat sink is required to effectively manage the heat dissipated by the Front position lamp (FPL) and/or the Daytime running lamp (DRL). Such separate heat sink further increases the bulkiness, part count and cost of the headlamp assembly.
[00026] Hence, there is a need of addressing the above circumstances and problems of the known arts.
[00027] The present subject matter has been devised in view of the above circumstances as well as solving other problems of the known art.
[00028] The present subject matter discloses in an embodiment, a headlamp assembly. The headlamp assembly comprises of a top compartment, a middle compartment, and a bottom compartment being defined by a bezel. The middle compartment houses a lighting means along with a light source being mounted on at least one printed circuit board of the one or more printed circuit board. The top compartment houses a top reflector and the bottom compartment houses a bottom reflector.
[00029] As per an aspect of the present subject matter, the headlamp assembly comprising of a heat sink, one or more printed circuit board. The at least one printed circuit board of the one or more printed circuit board is configured with a lighting means along with at least one light source. The at least one printed circuit board of the one or more printed circuit board being adjoiningly abutted to a front portion of the heat sink of the headlamp assembly.
[00030] As per another aspect of the present subject matter, the one or more printed circuit board includes a first printed circuit board, a second printed circuit board, and a third printed circuit board. The first printed circuit board being adjoiningly abutted to a front portion of the heat sink of the headlamp assembly. The at least one light source being configured to the second printed circuit board, and the second printed circuit board being adjoiningly abutted to a top portion of the heat sink below the top reflector. The at least one light source being configured to the third printed circuit board. The third printed circuit board being adjoiningly abutted to a bottom portion of the heat sink above the bottom reflector.
[00031] As per another aspect of the present subject matter, a locator is mounted on at least one side of a bottom portion of the heat sink and at least one side of the locator being connected with the bottom reflector.
[00032] As per another aspect of the present subject matter, the bezel, the heat sink, the one or more printed circuit board, the lighting means, and the locator is housed within an inner cowl member from the rear and the headlamp lens from the front in a vehicle front rear direction.
[00033] In another embodiment of the present subject matter, the lighting means functions as a Daytime running lamp (DRL) while emitting a high intensity light, when the ignition of the vehicle is “ON”, but either of the low beam light source or the high beam light source are not enabled.
[00034] In another embodiment of the present subject matter, the lighting means functions as a Front position lamp (FPL) while emitting a low intensity light, when the ignition of the vehicle is “OFF” and the input of enabling the Front position lamp (FPL) is enabled.
[00035] In another embodiment of the present subject matter, the intensity of the lighting means is reduced if either of a high beam light source or a low beam light source are enabled. This is done to ensure optimization of the light and heat produced by the headlamp assembly as a whole.
[00036] Exemplary embodiments detailing features regarding the aforesaid and other advantages of the present subject matter will be described hereunder with reference to the accompanying drawings. Various aspects of different embodiments of the present invention will become discernible from the following description set out hereunder. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. It should be noted that the description and figures merely illustrate 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. Further, it is to be noted that terms “upper”, “down”, “right”, “left”, “front”, “forward”, “rearward”, “downward”, “upward”, “top”, “bottom”, “exterior”, “interior” and like terms are used herein based on the illustrated state or in a standing state of the two wheeled vehicles with a user riding thereon. Furthermore, arrows wherever provided in the top right corner of figure(s) in the drawings depicts direction with respect to the vehicle, wherein an arrow F denotes front direction, an arrow R indicates rear direction, an arrow Up denotes upward direction, an arrow Dw denotes downward direction, an arrow RH denotes right side, and an arrow LH denotes left side. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.
[00037] Figure 1 illustrates a perspective view of a vehicle 100 comprising a headlamp assembly 105 when viewed from left hand side of the rider while rider is in riding position along with few internal parts of the vehicle 100 for clarity of explanation, in accordance with an embodiment of the present invention. The vehicle 100 includes a body frame 120 to support different parts of the vehicle 100. The body frame 120 includes a head tube 122 at its front end. The head tube 122 supports a steering shaft (not shown) rotatably in a certain range. In an upper portion of the head tube 122, a handlebar 107 is rotatably integrally connected to the steering shaft. The handlebar 107 further houses provision for viewing mirrors 108 used to keep a track of approaching vehicles from behind. The handlebar 107 is used to steer the vehicle 100 and is connected to a front wheel 101 through the steering shaft, a front fork assembly 103 and a brake assembly 121. An upper portion of the front wheel 101 is covered by a front fender 102 which prevents mud and water from getting deflected towards the steering shaft. Further, the front fork assembly 103 is supported on the front fender 102 by means of a brace fender (not shown).
[00038] In the front portion of the body frame, a fuel tank 109 is arranged immediately behind the handlebar 107 and is disposed over an engine 119. A seat 110 is placed behind the fuel tank 109. The seat 110 includes a front rider portion and rear pillion portion. The pillion seat portion is placed on the rear portion of the body frame 120, where the rear portion of body frame 120 is covered by the rear cover 112 and a hand rail 111 is provided for the pillion rider to grab when the vehicle is moving, keeping safety measures of pillion rider in consideration. During stationary position the rider can park the vehicle 100 with help of a plurality of stands, for example, center stand 118.
[00039] Suspension systems are provided for comfortable riding of the vehicle 100 on the road. The front fork assembly 103, which forms the front suspension system, serves as rigidity component just like the body frame 120. The front fork assembly 103 clamped to the head tube 122 through an upper bracket (not shown) and a lower bracket (not shown) is capable of being moved to the left and right. Further, a rear suspension system 117, which is a hydraulic damped arrangement, is connected to the body frame 120. The rear suspension system 117 comprises of at least one rear suspension (not shown) preferably on a left-hand side of the vehicle 100. However, in a vehicle 100 with two rear suspensions 117, the same may be disposed on the left side and the right side respectively of said vehicle 100.
[00040] The power unit 119 for example, an engine 119, is mounted to a front lower portion of the body frame 120 by means of an engine mounting bracket (not shown). The engine 119 is equipped with an exhaust system that includes an exhaust pipe (not shown) connected to the engine 119 and a muffler (not shown) connected to the exhaust pipe. The muffler (not shown) extends rearwards along the right side of a rear wheel 116.
[00041] Further, a swing arm (not shown) extending rearwards is swingably connected to a lower rear portion of the body frame 120. The rear wheel 116 is rotatably supported at a rear end of the swing arm. Power from the engine 119 is transmitted to the rear wheel 116 through a power drive mechanism, such as a drive chain, so as to drive and rotate the rear wheel 116.
[00042] A rear fender 114 for covering an upper side of the rear wheel 116 is mounted to a rear portion of body frame 120 to prevent mud and water splashed by the rotating rear wheel 116 from entering the muffler, the engine 119 and other parts disposed close by.
[00043] To enhance the overall aesthetics of the vehicle 100 and to prevent undesired foreign particles from entering parts of the vehicle, a plurality of rear covers 112 is attached to a rear portion of the body frame 120.
[00044] For the safety of the rider and in conformance with the traffic rules, the headlamp assembly 105 and a turn signal lamp unit 106, 113 are provided at both front and rear portions of the vehicle 100. The headlamp assembly 105 is secured disposed within a cowl assembly. The cowl assembly includes an outer cowl member 124 and an inner cowl member 203 (shown in Figure 2). On the rear portion of the vehicle 100 a tail lamp 123 is provided on the rear portion of the rear cover 112.
[00045] Figure 2 illustrates a perspective view of the headlamp assembly 105 in accordance with an embodiment of the present subject matter. The headlamp assembly 105 includes the cowl assembly, and a headlamp lens 201. The cowl assembly acts as a protecting casing for the enclosed parts while enhancing the aesthetic appeal of the headlamp assembly 105. The cowl assembly includes the inner cowl member 203 and the outer cowl member 124 (shown in Figure 1). The inner cowl member 203 is disposed on the posterior side of the headlamp assembly 105. The outer cowl member 124 substantially covers the headlamp assembly 105 from the outside, while exposing a headlamp lens 201. The headlamp lens 201 is usually a transparent lens that covers the front portion of the headlamp assembly 105 and aids in desired light distribution for forward road visibility. The headlamp lens 201 has an outer surface and an inner surface. The inner surface of the headlamp assembly 201 has a curved profile that extends from top portion of the head lamp assembly 105 to the bottom portion of the head lamp assembly 105. The outer surface of the headlamp lens 201 on top and sides include a plurality of outer cowl provisions 202. The plurality of outer cowl provisions 202 aid in mounting the outer cowl member 124 on the top of the headlamp assembly 105.
[00046] Figure 3a to Figure 3d illustrate multiple exploded views of the headlamp assembly 105 in accordance with an embodiment of the present subject matter.
[00047] Figure 3a illustrates the exploded view of the headlamp assembly 105 having a detached headlamp lens 201 from the rest of the components of the headlamp assembly 105. The headlamp lens 201 when detached from the headlamp assembly 105 exposes a bezel 207, and a lighting means 204 along with other internal components of the headlamp assembly 105 housed in the inner cowl member 203.
[00048] Figure 3b illustrates the exploded view of the headlamp assembly 105 having a detached lighting means 204 and a first printed circuit board 208 from the rest of the components of the headlamp assembly 105. The detached lighting means 204 and the first printed circuit board 208 exposes a middle compartment 209 of the bezel 207 along with other internal components of the headlamp assembly 105 housed in the inner cowl member 203.
[00049] Figure 3c illustrates the exploded view of the headlamp assembly 105 having a detached lighting means 204 and the bezel 207 from the rest of the components of the headlamp assembly 105. The detached lighting means 204 and the bezel 207 exposes the first printed circuit board (PCB) 208, a top reflector 210, and a bottom reflector 211, along with other internal components of the headlamp assembly 105 housed in the inner cowl member 203.
[00050] Figure 3d illustrates the exploded view of the headlamp assembly 105 having detached lighting means 204, the bezel 207, the top reflector 210, and the bottom reflector 211 from the rest of the components of the headlamp assembly 105. The present illustration exposes a heat sink 212, and the first printed circuit board (PCB) 208, along with the other internal components of the headlamp assembly 105 housed in the inner cowl member 203.
[00051] The bezel 207 includes the top compartment 205, the middle compartment 209, and the bottom compartment 206. The top reflector 210 is housed within the top compartment 205 of the bezel 207. The bottom reflector 211 is housed within the bottom compartment 206 of the bezel 207.
[00052] The lighting means 204 is housed within the middle compartment 209 of the bezel 207 and the rear portion of the lighting means 204 along with first printed circuit board (PCB) 208 is supported by the heat sink 212 of the headlamp assembly 105. The first printed circuit board (PCB) 208 acts as a light source 216 (shown in Figure 6) for the bezel 207.
[00053] In an embodiment, the top reflector 210 of the headlamp assembly 105 acts as a low beam reflector and the bottom reflector 211 acts as a high beam reflector.
[00054] A second printed circuit board (PCB) 213 (shown in Figure 7a) including separate or integrated light source 216, for example, at least one Light Emitting Diode (LEDs), act as a low beam light source for the top reflector 210. The low beam emitted by the low beam light source directs most of its light downward and either rightward (in right-traffic countries) or leftward (in left-traffic countries), to provide forward visibility.
[00055] A third printed circuit board (PCB) 215 (shown in Figure 7b) including separate or integrated light source, for example, at least one Light Emitting Diode (LEDs), act as a high beam light source for the bottom reflector 211. The high beam emitted by the high beam light source casts most of its light straight ahead of the vehicle, maximizing conspicuity of the bottom reflector 211. Since the low beam light source is placed above the high beam light source, while being parallel to each other, the light output by the low beam is enhanced, as the construction helps in illuminating the road closer to the vehicle 100 and thus helps in reduction of road accidents during night time that usually occur due to low forward road visibility.
[00056] Both the top reflector 210 and the bottom reflector 211, are made of a plurality of orthogonal shapes that aid in reflecting the rays parallel to the principal axis of the head lamp assembly 105, when the light source 216 is placed at its focal point irrespective of where the rays fall on the reflecting surface of the top reflector 210 and the bottom reflector 211, thereby producing a bright parallel reflected beam of constant light intensity.
[00057] The headlamp lens 201 along with the headlamp reflectors (210, 211) provide a powerful far-reaching central beam, around which the light is distributed both horizontally and vertically to illuminate maximum possible area of the road surface immediate to the frontal region of the vehicle 100. The beam formations are substantially improved by passing the reflected light rays through the transparent block of headlamp lens 201 in a two wheeled vehicle 100 as the headlamp lens 201 redistributes the reflected light beam and stray rays to certain extent due to which a better forward road visibility is obtained with least glare.
[00058] In another embodiment, the top reflector 210 of the headlamp assembly 105 acts as a high beam reflector and the bottom reflector 211 acts as a low beam reflector.
[00059] The printed circuit boards (PCBs) 208, 213, 215 mechanically support and electrically connects the electrical or electronic components using conductive tracks, pads and other features etched from one or more laminated sheet layers onto and/or between sheet layers of a non-conductive substrate. The one or more printed circuit board (PCB)s, i.e. the first printed circuit board (PCB) 208, the second printed circuit board (PCB) 213, and the third printed circuit board (PCB) 215, are abutted to the heat sink 212 disposed within the inner cowl member 203. The heat sink 212 acts as a passive heat exchanger that helps in cooling of the printed circuit board (PCB) by absorbing the heat generated by the three printed circuit board (PCB) (208, 213, 215).
[00060] In one embodiment, the first printed circuit board (PCB) 208 is disposed in front of the heat sink 212 by means of fastening means 217. The second printed circuit board (PCB) 213 is disposed on the top portion of the heat sink 212 by means of fastening means 217. The third printed circuit board (PCB) 215 is disposed on the bottom portion of the heat sink 212 by means of fastening means 217.
[00061] Herein, since all the three printed circuit boards (PCBs) (208, 213, 215) are being assembled to a single part i.e. the heat sink 212, thereby the overall compactness of the headlamp assembly 105 is achieved. Moreover, since same heat sink 212 is used to manage the heat dissipated by all the three printed circuit boards (PCBs) (208, 213, 215), thereby the overall compactness of the headlamp assembly 105 is further achieved. This is because of elimination of usage of separate heat sinks 212 for all the three printed circuit boards (PCBs) (208, 213, 215). Also, since the need of separate heat sink 212 is eliminated, the overall part count of the headlamp assembly 105 is also considerably reduced, thereby further reducing the overall cost of the headlamp assembly 105.
[00062] Figure 4a to Figure 4b illustrate front and rear of the lighting means 204 of the headlamp assembly 105 in accordance with an embodiment of the present subject matter.
[00063] The lighting means 204 is a M shaped structure including a front portion and a rear portion. Figure 4a illustrates the front portion of the lighting means 204, herein called as a first face 204a. The first face 204a includes a plurality of hexagonal prismatic structures 204aa forming a honeycomb type structure. The plurality of hexagonal prismatic structures 204aa provide sparkling effect to the lighting means 204, thereby enhancing the visual appearance of the lighting means 204, while the lighting means being used as a Daytime running lamp. Because of such sparkling effect provided by the plurality of hexagonal prismatic structures 204aa it becomes easier for a passerby to visually recognize the vehicle 100.
[00064] Figure 4b illustrates the rear portion of the lighting means 204, herein called as a second face 204b. The second face 204b includes at least one first mounting provisions 204c and at least one of second mounting provisions 204d. The at least one first mounting provisions 204c aid in abuttingly mounting the lighting means 204 to the middle compartment 209 of the bezel 207. The at least one second mounting provisions 204d aid in supportingly mounting the lighting means 204 to the first printed circuit board (PCB) 208, such that the Light Emitting Diode (LEDs) 216 (shown in Figure 6) integrated with the first printed circuit board (PCB) 208 adjoinedly gets aligned with at least one light source provisions 204e provided on the second face 204b of the lighting means 204.
[00065] Figure 5a illustrate a perspective view of the bezel 207 of the headlamp assembly 105 in accordance with an embodiment of the present subject matter. The bezel 207 acts as a holding structure for the headlamp assembly 105, that holds the internal components such as the lighting means 204, a top reflector 210, and a bottom reflector 211, along with other internal components of the headlamp assembly 105 in position. Moreover, the bezel 207 aids in maintaining the aesthetics of the headlamp assembly 105 as the bezel 207 lines the inner cowl member 203, thus minimizing the visibility of the internal components of the headlamp assembly 105, housed the inner cowl member 203, when viewed from the front of the vehicle 100.
[00066] The bezel 207 includes the top compartment 205, the middle compartment 209, and the bottom compartment 206. The rear portion of the top reflector 210 is housed within the top portion of the inner cowl member 203, and the front portion of the top reflector 210 is supported by the top compartment 205 of the bezel 207. The top compartment 205 is defined by means of a plurality of walls. The plurality of walls includes a top wall 205a and a bottom wall 205b. The rear portion of the bottom reflector 211 is housed within the bottom portion of the inner cowl member 203, and the front portion of the bottom reflector 211 is partially supported by the bottom compartment 206 of the bezel 207. The bottom compartment 206 is defined by means of a plurality of walls. The plurality of walls includes a top wall 206a and a bottom wall 206b.
[00067] The lighting means 204 is housed within the middle compartment 209 of the bezel 207 and the rear portion of the lighting means 204 along with first printed circuit board (PCB) 208 is supported by the heat sink 212 of the headlamp assembly 105. The first printed circuit board (PCB) 208 acts as a light source 216 (shown in Figure 6) for the bezel 207.
[00068] In an embodiment the bottom wall 205b of the top compartment 205 and the top wall 205a of the bottom compartment 206 of the bezel 207 define the boundary of the middle compartment 209.
[00069] In another embodiment, the middle compartment 209 has a separate top and bottom wall different from the walls of the top compartment 205 and the bottom compartment 206.
[00070] In another embodiment, the bezel 207 includes at least one protrusion 207a. The at least one protrusion 207a aid in snap fitting of the bezel 207 with the inner cowl member 203, ensuring obviation of gaps there in between.
[00071] Figure 5b illustrate the rear view of the bezel 207 of the headlamp assembly 105 in accordance with an embodiment of the present subject matter. The rear portion of the bezel 207 includes at least one fourth mounting provision 207b. The at least one first mounting provision 204c of the lighting means 204 aids in abuttingly mounting the lighting means 204 to at least one fourth mounting provision 207b of the rear portion of the middle compartment 209 of a bezel 207 by at least one fastening means.
[00072] Figure 6 illustrate some internal components of the headlamp assembly 105 housed within the inner cowl member 203, in accordance with an embodiment of the present subject matter. The first printed circuit board (PCB) 208 including a plurality of integrated LEDs 216, is mounted on to a front portion of the heat sink 212 (shown in Figure 3d), such that the first printed circuit board (PCB) 208 is disposed between the top reflector 210 and the bottom reflector 211.
[00073] The first printed circuit board (PCB) 208 includes at least one third mounting provision 208a. The at least one second mounting provision 204d (shown in Figure 4b) of the lighting means 204 are aligned with the at least one third mounting provision 208a and mounted by means of fastening means 217, for example fasteners 217 (shown in Figure 3d).
[00074] Figure 7a to Figure 7b illustrate some internal components of the headlamp assembly 105 housed within the inner cowl member 203, in accordance with an embodiment of the present subject matter. Figure 7a illustrates first printed circuit board (PCB) 208 being mounted on the front portion of the heat sink 212. The second printed circuit board (PCB) 213 being mounted on the top portion of the heat sink 212. Figure 7b illustrates the third printed circuit board (PCB) 215 being mounted on the bottom portion of the heat sink 212. A locator 214 is mounted on at least one side on the bottom portion of the heat sink 212. At least one side of the locator 214 is connected with the bottom reflector 211. The locator 214 aids in adjustment of the bottom reflector 211 to enable the adjustment of the high beam in the desired direction or as per vehicle requirement.
[00075] Since the first printed circuit board (PCB) 208, the second printed circuit board (PCB) 213, the third printed circuit board (PCB) 215, and the locator 214 are placed separately on at least a portion of the heat sink 212, thereby heat dissipated from them is absorbed by the heat sink 212, and the heat produced within the inner cowl member 203 is effectively maintained.
[00076] Moreover, since the first printed circuit board (PCB) 208, the second printed circuit board (PCB) 213, the third printed circuit board (PCB) 215, and the locator 214 are placed separately on at least a portion of a single heat sink 212, thereby need of separate heat sink 212 is eliminated. Therefore, the present subject matter aids in achieving a compact headlamp assembly 150.
[00077] Figure 8 illustrate the heat sink 212 and the first printed circuit board (PCB) 208 of the headlamp assembly 105 housed within the inner cowl member 203, in accordance with an embodiment of the present subject matter. Because of direct mounting of the lighting means 204 on the first printed circuit board (PCB) 208 and the direct placement of first printed circuit board (PCB) 208 onto the single heat sink 212 already being used by the second printed circuit board (PCB) 213, third printed circuit board (PCB) 215, and the locator 214. The need of separate heat sink 212 is eliminated and headlamp assembly 150 compactness is achieved.
[00078] Figure 9 illustrate a flow chart 300, in accordance with an embodiment of the present subject matter. In an embodiment, herein the lighting means 204 functions as both a Front position lamp (FPL) and a Daytime running lamp (DRL), as and when required. The headlamp assembly 105 (shown in Figure 2) of a vehicle 100 comprises of the low beam light source, the high beam light source; and the lighting means 204 (shown in Figure 4a).
[00079] The flow chart 300 herein illustrates a method of operating a headlamp assembly 105 of a vehicle 100. The method includes starting 303 the process and checking whether the ignition of the vehicle 100 is “ON” or not 304. The lighting means 204 (shown in Figure 4a) is switched “ON” with a first intensity “x”, if the ignition of the vehicle 100 is switched “ON” 306, i.e. Yes 302. Therefore, the lighting means 204, always remains “ON” with a high first intensity “x”, whenever the ignition of the vehicle 100 is “ON”, thereby functioning as a Daytime running lamp (DRL). While functioning as the Daytime running lamp (DRL), the lighting means 204 ensures all time visibility of the vehicle 100 to other riders, especially in fog conditions on hilly areas.
[00080] The lighting means 204 is switched “ON” with a second intensity “y” 307, if the ignition of the vehicle 100 is switched “OFF”, i.e. No 301 and an input of switching “ON” the Front position lamp (FPL) is given by a user 305. Therefore, the lighting means 204 herein functions as a Front position lamp and guides the user with a reduced intensity light, i.e. with second intensity “y” even when the ignition of the vehicle 100 is “OFF”. While functioning as the Front position lamp (FPL), the lighting means 204 inherently ensures usage of minimum possible electric energy, so that it can be left “ON” when the vehicle is parked, especially during night time. This is done for enhancing a standing-vehicle conspicuity and to indicate to road users the presence and widthwise dimensions of the vehicle during parked condition.
[00081] The method further involves checking whether the high beam light source or low beam light source is enabled by a user or not 308. If the result is “Yes” 302, i.e. the high beam light source or low beam light source is enabled. Then the intensity of the light emitted by the lighting means 204 is reduced from the first intensity “x” to a second intensity “y” 309, and the lighting means 204 remains switched “ON” with the first intensity “x” 306, if the result is “No” 301 and the process stops 310. As per an aspect of this present embodiment, the second intensity “y” is a reduced intensity than the first intensity “x”.
[00082] This reduction in light intensity emitted by the lighting means 204 is done to ensure that the light emitted by the lighting means 204 is optimized as already either the low beam light source or the high beam light source will be functional to provide optimum light to view the road ahead. Moreover, this optimization of the intensity of the light means 204 ensures minimizing of heat dissipated by the light means 204 to further ensure overall minimization of heat of the headlamp assembly when the light means 204 and at least one of the high beam light source or the low beam light source is functional.
[00083] As per an aspect, since the light means 204 that functions both as the Front position lamp (FPL) and the Daytime running lamp (DRL), while being integrated with the headlamp assembly 105 as a single unit and uses same heat sink 212 (shown in Figure 3d) as that of the headlamp assembly 105. Thereby, ease is manufacturability is achieved as the need the of a separate Front position lamp (FPL) and the Daytime running lamp (DRL) and separate heat sinks 212 is eliminated.
[00084] Many modifications and variations of the present subject matter are possible in the light of above disclosure. Therefore, within the scope of claims of the present subject matter, the present disclosure may be practiced other than as specifically described.

LIST OF REFERENCE NUMERAL


100: Vehicle
101: Front wheel
102: Front fender
103: Front fork assembly
105: Headlamp assembly
106: Front turn signal lamp
107: Handle bar
108: Viewing mirror
109: Fuel tank
110: Seat
111: Hand rail
112: Rear cover
113: Rear turn signal lamp
114: Rear fender
116: Rear wheel
117: Rear suspension
118: Center stand
119: Engine
120: Body frame
121: Break assembly
122: Head tube
123: Tail lamp
124: Outer cowl member
201: Headlamp lens
202: Outer cowl provision
203: Inner cowl member
204: lighting means
204a: First face
204aa: Hexagonal prismatic structures
204b: Second face
204c: First mounting provision
204d: Second mounting provision
204e: Light source provision
205: Top compartment
206: Bottom compartment
207: Bezel
207a: Bezel protrusion
207b: Fourth mounting provision
208: First Printed Circuit Board
208a: Third mounting provision
209: Middle compartment
210: Top reflector
211: Bottom reflector
212: Heat sink
213: Second Printed Circuit Board
214: Locator
215: Third Printed Circuit Board
216: Light source
217: Fastener
x: First intensity
y: Second intensity
300: Flow chart
301: No
302: Yes
303: Start
304: Is the Ignition “ON”
305: Is FPL “ON” input given
306: Lighting means (204) “ON” with a first intensity (x)
307: Lighting means (204) “ON” with a second intensity (y)
308: Is high beam/low beam source enabled
309: Lighting means (204) intensity reduced to second intensity (y)
310: Stop
,CLAIMS:I/We Claim:
1. A headlamp assembly (105) comprising:
a heat sink (212); and
one or more printed circuit board (208, 213, 215),
wherein, at least one printed circuit board (208) of said one or more printed circuit board (208, 213, 215) being configured with a lighting means (204) along with at least one light source (216),
wherein, at least one printed circuit board (208) of said one or more printed circuit board (208, 213, 215) being adjoiningly abutted to a front portion of said heat sink (212) of said headlamp assembly (105).
2. The headlamp assembly (105) of a vehicle (100) as claimed in claim 1, wherein said headlamp assembly (105) includes a top compartment (205), a middle compartment (209), and a bottom compartment (206), wherein said top compartment (205), said middle compartment (209), and said bottom compartment (206) being defined by a bezel (207).
3. The headlamp assembly (105) of a vehicle (100) as claimed in claim 2, wherein said middle compartment (209) houses a lighting means (204) along with a light source (216) being mounted on at least one printed circuit board (208) of said one or more printed circuit board (208, 213, 215).
4. The headlamp assembly (105) of a vehicle (100) as claimed in claim 2, wherein said top compartment (205) houses a top reflector (210) and said bottom compartment (206) houses a bottom reflector (211).
5. The headlamp assembly (105) of a vehicle (100) as claimed in claim 1, wherein said one or more printed circuit board (208) includes a first printed circuit board (208), a second printed circuit board (213), and a third printed circuit board (215).
6. The headlamp assembly (105) of a vehicle (100) as claimed in claim 5, wherein said first printed circuit board (208) being adjoiningly abutted to a front portion of a heat sink (212) of said headlamp assembly (105).
7. The headlamp assembly (105) of a vehicle (100) as claimed in claim 5, wherein at least one light source (216) being configured to said second printed circuit board (213), and said second printed circuit board (213) being adjoiningly abutted to a top portion of a heat sink (212) below a top reflector (210).
8. The headlamp assembly (105) of a vehicle (100) as claimed in claim 5, wherein at least one light source (216) being configured to said third printed circuit board (215), said third printed circuit board (215) being adjoiningly abutted to a bottom portion of a heat sink (212) above a bottom reflector (211).
9. The headlamp assembly (105) of a vehicle (100) as claimed in claim 1, wherein said at least one light source (216) includes one or more light emitting diodes.
10. The headlamp assembly (105) of a vehicle (100) as claimed in claim 1, wherein said heat sink (212) being housed within an inner cowl member (203) of said headlamp assembly (105).
11. The headlamp assembly (105) of a vehicle (100) as claimed in claim 1, wherein said lighting means (204) being a M shaped structure, wherein said lighting means (204) includes a first face (204a) and a second face (204b).
12. The headlamp assembly (105) of a vehicle (100) as claimed in claim 11, wherein said first face (204a) of said lighting means (204) includes a plurality of hexagonal prismatic structures (204aa) forming a honeycomb type structure.
13. The headlamp assembly (105) of a vehicle (100) as claimed in claim 11, wherein said second face (204b) of said lighting means (204) includes at least one first mounting provision (204c) and at least one second mounting provision (204d).
14. The headlamp assembly (105) of a vehicle (100) as claimed in claim 13, wherein at least one first mounting provision (204c) aids in abuttingly mounting said lighting means (204) to at least one fourth mounting provision (207b) of a rear portion of a middle compartment (209) of a bezel (207) by fastening means.
15. The headlamp assembly (105) of a vehicle (100) as claimed in claim 13, wherein at least one second mounting provisions (204d) aids in supporting and mounting said lighting means (204) to a first printed circuit board (208), wherein at least one light source (216) integrated with said first printed circuit board (208) gets adjoinedly aligned with at least one light source provision (204e) provided on said second face (204b) of said lighting means (204).
16. The headlamp assembly (105) of a vehicle (100) as claimed in claim 1, wherein a locator (214) being mounted on at least one side of a bottom portion of said heat sink (212) and at least one side of said locator (214) being connected with a bottom reflector (211).
17. The headlamp assembly (105) of a vehicle (100) as claimed in claim 1, wherein a bezel (207), said heat sink (212), said one or more printed circuit board (208, 213, 215), said lighting means (204) along with at least one light source (216), and a locator (214) being housed within an inner cowl member (203) from the rear and a headlamp lens (201) from the front in a vehicle front rear direction.
18. A headlamp assembly (105) of a vehicle (100) comprising:
a low beam light source;
a high beam light source; and
a lighting means (204),
wherein, said lighting means (204) being “ON” with a first intensity (x), when the ignition of said vehicle (100) is switched “ON”;
wherein said lighting means (204) being “ON” with a second intensity (y) when the ignition of said vehicle (100) is switched “OFF” and a Front position lamp “ON” input given by a user; and
wherein, said lighting means (204) illuminates with a second intensity (y), when either said low beam light source or said high beam light source being enabled by said user,
wherein, said second intensity (y) being a reduced intensity than said first intensity (x).
19. A method of operating a headlamp assembly (105) of a vehicle (100), said method comprising:
checking whether the ignition is “ON” or not (304), wherein,
a lighting means (204) is switched “ON” with a first intensity (x) (306), when the result being “Yes” (302); and
checking whether a Front position lamp “ON” input given by a user (305) when the result being “No” (301), wherein,
the process of checking whether the ignition being “ON” or not (304) is reinitiated, when the result being “No” (301), and
said lighting means (204) is switched “ON” with a second intensity (y) (307), when the result being “Yes” (302);
checking whether one of a high beam light source and low beam light source being enabled by a user (308), wherein
said lighting means (204) intensity being reduced from said first intensity (x) to said second intensity (y) (309), when the result being “Yes” (302), and
said lighting means (204) remains switched “ON” with said first intensity (x) (306), when the result being “No” (301).