Headlamp for motorcycle

Abstract

Disclosed is a headlamp for a motorcycle. The present invention detects inclination of a motorcycle body due to cornering when a motorcycle is traveling, and controls the headlamp to roll in the opposite direction to the inclination direction, and thus can control the light emitted by the headlamp to maintain the horizontal light distribution centered on the light axis and can provide a sufficient field of view to a rider.

Description

Motorcycle headlamp

[0001] The present invention relates to a headlamp for a motorcycle, and more specifically, to a headlamp for a motorcycle that detects the tilt of the vehicle body due to cornering while driving the motorcycle and controls the headlamp to roll in the opposite direction of the tilt, thereby controlling the light emitted from the headlamp to maintain a horizontal light distribution around the optical axis.

[0002] A motorcycle is a type of two-wheeled vehicle that refers to a means of transportation equipped with an engine to rotate the wheels using that power, and is also called a bike, motorcycle, or motor bike.

[0003] A motorcycle is basically configured such that an engine is installed in the body to drive the wheels, and includes a headlamp to illuminate the front, a taillamp to illuminate the rear, and turn signals.

[0004] Meanwhile, motorcycles have the characteristic of requiring a winding posture (a posture of leaning the body toward the direction of the turn) for cornering while riding, so the motorcycle body leans in the direction of the corner as it rides.

[0005] FIG. 1 is an example diagram illustrating the operation of a headlamp during cornering while riding a typical motorcycle.

[0006] As shown in FIG. 1, when a motorcycle (10) performs cornering on a road (20), it travels in a state where it is tilted in the direction of the cornering.

[0007] At this time, the headlamp (11) of the motorcycle (10) outputs a light distribution (30) that is tilted at a certain angle (θ) around the optical axis (C) while performing cornering, and then outputs a light distribution (31) in a horizontal direction around the optical axis (C) when driving in a straight line.

[0008] However, due to the tilted light distribution (30) of the headlamp (11) formed during cornering, some of the light is directed toward the road (20) floor or toward the empty air, resulting in a problem where the range of visibility in front is reduced.

[0009] [Patent Literature]

[0010] Korean Registered Patent Publication No. 10-1884128 (Title of Invention: Smart Steering System for Motorcycle Auxiliary Headlights, Registration Date: July 25, 2018)

[0011] To solve these problems, the present invention aims to provide a motorcycle headlamp that detects the tilt of the vehicle body due to cornering while driving and controls the headlamp to roll in the opposite direction of the tilt, thereby controlling the light emitted from the headlamp to maintain a horizontal light distribution around the optical axis.

[0012] To achieve the above objective, one embodiment of the present invention is a headlamp for a motorcycle, characterized in that a control unit analyzes tilt information input from a sensor unit to calculate rolling information of a light source module, and operates a driving unit based on the calculated rolling information to control the light source module to rotate around an optical axis (C).

[0013] In addition, the headlamp according to the above embodiment includes a housing that accommodates the light source module and the driving unit; and the driving unit is installed inside the housing and operates to rotate the light source module in a leftward or rightward direction around the optical axis (C) inside the housing.

[0014] In addition, the headlamp according to the above embodiment is characterized by further including a bearing part that supports the light source module part to rotate inside the housing according to the operation of the driving part.

[0015] In addition, the light source module according to the above embodiment comprises: a light source part composed of a plurality of light-emitting elements that output light of a downward beam pattern and light of an upward beam pattern; a heat dissipation part that absorbs and emits heat generated from the light source part and has a gear groove part that meshes with the driving part along one side of the circumference; and a bearing part installation groove formed in the heat dissipation part; wherein the heat dissipation part is characterized by rotating to the left or right direction according to the rotation direction of the driving part.

[0016] In addition, the headlamp according to the above embodiment is characterized by further comprising an optical system having a first optical system that concentrates light of a downward beam pattern output from the light source unit, a second optical system that concentrates light of an upward beam pattern, and a third optical system that disperses and outputs light concentrated in the first optical system or the second optical system.

[0017] In addition, the first optical system and the second optical system according to the above embodiment are characterized by rotating together in conjunction with the rolling motion of the light source module rotating around the optical axis (C).

[0018] In addition, the headlamp according to the above embodiment includes a housing that accommodates a plurality of light source modules and forms a gear groove along the outer circumference that meshes with the driving unit; and the driving unit is characterized by rotating the housing so that the light source modules rotate in a leftward or rightward direction around the optical axis (C).

[0019] In addition, the headlamp according to the above embodiment is characterized by further including a bearing part installed on the outside of the housing to support the housing so that it rotates according to the operation of the driving part.

[0020] In addition, the light source module according to the above embodiment is characterized by comprising a light source unit composed of a plurality of light-emitting elements that output light in a downward beam pattern and light in an upward beam pattern, a heat dissipation unit that absorbs and emits heat generated from the light source unit, and an optical system that concentrates and outputs light output from the light source unit.

[0021] In addition, the headlamp according to the above embodiment comprises a housing that accommodates a light source module, a bearing portion that supports the light source module to rotate according to the operation of the driving portion, and an optical system that converts and outputs light output from the light source module into an arbitrary beam pattern, wherein the driving portion operates to rotate the light source module to the left or right direction around the optical axis (C) from outside the housing.

[0022] In addition, the light source module according to the above embodiment is characterized by comprising: a light source unit composed of a plurality of light-emitting elements that output light of a downward beam pattern and light of an upward beam pattern; a heat dissipation unit that absorbs and emits heat generated from the light source unit; a rotational support unit installed on the heat dissipation unit to support the rotation of the light source module unit; and a pulley installed on the rotational support unit and engaged with the driving unit to transmit the rotational force of the driving unit.

[0023] In addition, the headlamp according to the above embodiment comprises a plurality of headlamps arranged in a line in either a vertical or a horizontal direction; a pulley that operates to rotate a light source module installed in each headlamp in a left or right direction around an optical axis (C); and a timing belt that is in close contact with at least a portion of the pulley, wherein the driving unit is connected to the timing belt through a driving unit pulley and operates to rotate the light source module.

[0024] The present invention has the advantage of being able to control the light emitted from the headlamp to maintain a horizontal light distribution centered on the optical axis and provide sufficient visibility to the motorcycle rider by detecting the tilt of the vehicle body due to cornering while driving the motorcycle and controlling the headlamp to roll in the opposite direction of the tilt.

[0025] FIG. 1 is an example diagram illustrating the operation of a headlamp during cornering while riding a typical motorcycle.

[0026] FIG. 2 is an exemplary diagram illustrating a motorcycle headlamp according to one embodiment of the present invention.

[0027] FIG. 3 is a cross-sectional view illustrating the structure of a motorcycle headlamp according to the embodiment of FIG. 2.

[0028] FIG. 4 is an exploded perspective view shown to explain the configuration of a motorcycle headlamp according to the embodiment of FIG. 2.

[0029] FIG. 5 is a block diagram illustrating the configuration of a motorcycle headlamp according to an embodiment of FIG. 2.

[0030] FIG. 6 is an example diagram illustrating the operation process of a motorcycle headlamp according to the embodiment of FIG. 2.

[0031] FIG. 7 is an example diagram illustrating the high-beam light distribution of a motorcycle headlamp according to the embodiment of FIG. 2.

[0032] FIG. 8 is an example diagram illustrating the low beam light distribution of a motorcycle headlamp according to the embodiment of FIG. 2.

[0033] FIG. 9 is an exemplary diagram illustrating a motorcycle headlamp according to another embodiment of the present invention.

[0034] FIG. 10 is an example diagram illustrating the light distribution of a motorcycle headlamp according to the embodiment of FIG. 9.

[0035] FIG. 11 is an exemplary diagram illustrating a motorcycle headlamp according to another embodiment of the present invention.

[0036] FIG. 12 is an exploded perspective view illustrating a motorcycle headlamp according to the embodiment of FIG. 11.

[0037] FIG. 13 is an exemplary diagram illustrating a motorcycle headlamp according to another embodiment of the present invention.

[0038] Hereinafter, the present invention will be described in detail with reference to preferred embodiments of the invention and the accompanying drawings, under the premise that identical reference numerals in the drawings refer to identical components.

[0039] Before describing specific details for the implementation of the present invention, it should be noted that configurations not directly related to the technical essence of the present invention have been omitted to the extent that they do not detract from the technical essence of the present invention.

[0040] Furthermore, terms or words used in this specification and claims should be interpreted in a meaning and concept consistent with the technical spirit of the invention, based on the principle that the inventor may define the concept of appropriate terms to best describe their invention.

[0041] In this specification, the expression that a part "includes" a certain component means that it does not exclude other components but may include additional components.

[0042] In addition, terms such as "...part," "...unit," and "...module" refer to a unit that processes at least one function or operation, and this can be classified as hardware, software, or a combination of both.

[0043] In addition, the term "at least one" is defined as a term including both singular and plural forms, and it is self-evident that even if the term "at least one" does not exist, each component may exist in the singular or plural form and may mean the singular or plural.

[0044] Hereinafter, a preferred embodiment of a motorcycle headlamp according to one embodiment of the present invention will be described in detail with reference to the attached drawings.

[0045] (1st Embodiment)

[0046] FIG. 2 is an exemplary diagram illustrating a motorcycle headlamp according to an embodiment of the present invention, FIG. 3 is a cross-sectional view illustrating the structure of a motorcycle headlamp according to the embodiment of FIG. 2, FIG. 4 is an exploded perspective view illustrating the configuration of a motorcycle headlamp according to the embodiment of FIG. 2, FIG. 5 is a block diagram illustrating the configuration of a motorcycle headlamp according to the embodiment of FIG. 2, and FIG. 6 is an exemplary diagram illustrating the operation process of a motorcycle headlamp according to the embodiment of FIG. 2.

[0047] As shown in FIGS. 2 to 6, a motorcycle headlamp (100) according to one embodiment of the present invention can detect the tilting of the vehicle body due to cornering while driving the motorcycle and control the headlamp (100) to roll in the opposite direction of the tilting direction.

[0048] Additionally, the headlamp (100) can calculate rolling information of the light source module (120) by having the control unit (170) analyze the tilt information input from the sensor unit (160).

[0049] Additionally, the headlamp (100) can operate the driving unit (140) based on the calculated rolling information to control the light source module (120) to rotate to the left or right around the optical axis (C).

[0050] To this end, a headlamp (100) according to one embodiment of the present invention may be configured to include a housing (110), a light source module (120), a bearing unit (130), a driving unit (140), an optical system (150), a sensor unit (160), a control unit (170), and an input unit (180).

[0051] The housing (110) is a rectangular member having a hollow interior, and can be composed of a polygonal shape, a cylindrical shape, etc.

[0052] Additionally, the housing (110) is configured to accommodate a light source module (120), a bearing unit (130), a driving unit (140), an optical system (150), a sensor unit (160), and a control unit (170) inside.

[0053] The light source module (120) is configured to output light and may include a light source part (121), a heat dissipation part (122), and a bearing part installation groove (123).

[0054] The light source unit (121) may be configured to include a first light source unit (121a) which is installed on one side of the heat dissipation unit (122) and has a plurality of light-emitting elements arrayed therein that output light in a downward beam pattern, and a second light source unit (121b) which has a plurality of light-emitting elements arrayed therein that output light in an upward beam pattern.

[0055] The light source unit (121) is turned on / off according to the operation control signal of the control unit (170) so that light of a downward beam pattern or light of an upward beam pattern can be output.

[0056] The heat dissipation unit (122) is configured to absorb heat generated from the light source unit (120) and discharge it to the outside of the light source module unit (120), and can be configured in the shape of a rectangular cylinder so as to be able to rotate inside the housing (110).

[0057] Additionally, the heat dissipation section (122) may be divided into a first heat dissipation section (122a) in which a light source section (120) is installed and a second heat dissipation section (122b) that performs heat dissipation based on the bearing section installation groove (123).

[0058] The first heat dissipation part (122a) may be provided with a gear groove part (122a') that engages with the driving part (140) along the circumference of one end part.

[0059] The second heat dissipation part (122b) may be provided with a plurality of heat dissipation fins (122b') for discharging heat absorbed and conducted from the light source part (120) at the other end.

[0060] The bearing installation groove (123) is configured for installing the bearing part (130) and can provide a path so that the heat dissipation part (122) can perform rolling through rotation inside the bearing part (130).

[0061] That is, the heat dissipation part (122) can rotate in the left direction or the right direction according to the rotation direction of the driving part (140) through the bearing part (130).

[0062] The bearing part (130) is fixed so that its outer side is in close contact with the inside of the housing (110), thereby supporting the heat dissipation part (120) so that it can rotate in the left or right direction through the driving force resulting from the rotation of the driving part (140) inside the housing (110).

[0063] In addition, the bearing portion (130) has a plurality of bearings (131) installed along the inner side so that the frictional force with the heat dissipation portion (120) can be reduced.

[0064] The driving unit (140) is installed inside the housing (110) and is configured to perform forward or reverse rotation operations according to the operation control signal of the control unit (170), and may be composed of a DC motor, a BLDC motor, a stepping motor, a servo motor, etc.

[0065] Additionally, the driving unit (140) is equipped with a driving gear (141) at the end of the rotation axis of the driving unit (140), and the driving gear (141) engages with a gear groove (122a') formed in the heat dissipation unit (122) so that the light source module (120) can be rotated in the left or right direction around the optical axis (C) inside the housing (110) according to the rotation direction of the driving unit (140).

[0066] The optical system (150) is configured to operate such that light output from the light source module (120) is irradiated in a specific beam pattern, and may be configured to include a first optical system (151), a second optical system (152), and a third optical system (153).

[0067] The first optical system (151) is configured to concentrate the incident light at a fixed focal length and output it when light output from the first light source (121a) is incident, and may be composed of a primary lens, and a plurality of first optical system incident parts (151a) may be formed corresponding to light-emitting elements arrayed in the first light source (121a).

[0068] Additionally, the first optical system (151) can form an optical path so that light of a downward beam pattern can be output.

[0069] The second optical system (152) is configured to concentrate the incident light at a fixed focal length and output it when light output from the second light source (121b) is incident, and may be composed of a single lens, and a plurality of second optical system incident parts (152a) may be formed corresponding to the light-emitting elements arrayed in the second light source (121b).

[0070] Additionally, the second optical system (152) can form an optical path so that light of an upward beam pattern can be output.

[0071] Additionally, the first optical system (151) and the second optical system (152) may be configured to rotate together in conjunction with the rolling motion of the light source module (120) inside the housing (110).

[0072] The third optical system (153) may be composed of a projection lens and is installed at one end of the housing (110) to concentrate light output from the first optical system (151) or the second optical system (152), and to evenly disperse and output the concentrated light, thereby enabling the formation of a clear beam pattern of light distribution.

[0073] In addition, the third optical system (153) may be configured to be fixed to the housing (110), unlike the first and second optical systems (151, 152) which are configured to be capable of rolling inside the housing (110) as in FIG. 6(a) and FIG. 6(b).

[0074] The sensor unit (160) is installed inside the housing (110) and is configured to detect information such as the tilt direction and tilt angle as the motorcycle body tilts, and may be composed of a gyro sensor.

[0075] The control unit (170) is installed inside the housing (110), and when an operation control signal for the headlamp (100) is input through an input unit (180) such as a switch, it can control the light source module (120) to emit light of a downward beam pattern or light of an upward beam pattern by outputting an on / off control signal according to the input operation control signal.

[0076] Additionally, the control unit (170) analyzes the tilt information detected from the sensor unit (160) to determine whether to control the rolling of the light source module unit (120), and depending on the result of the determination, outputs an operation control signal to the driving unit (140) so that the light source module unit (120) rotates to the left or right direction around the optical axis (C).

[0077] That is, when the control unit (170) receives the tilt direction and tilt angle of the vehicle body tilting to the left through the sensor unit (160), it controls the light source module unit (120) to rotate to the right, which is opposite to the direction in which the vehicle body is tilted, and controls the light source module unit (120) to maintain a horizontal beam pattern by reflecting the detected tilt angle.

[0078] For example, when the control unit (170) outputs an upward beam pattern of light, if the output is tilted as in FIG. 7(a) due to the tilting of the vehicle body, it adjusts the output to a horizontal state as in FIG. 7(b).

[0079] Additionally, the control unit (170), while outputting a downward beam pattern of light, if the output is tilted as in FIG. 8(a) due to the tilting of the vehicle body, adjusts the output to a horizontal state as in FIG. 8(b).

[0080] In addition, the control unit (170) controls the light source module unit (120) to return to its original position when the tilted vehicle body is restored to its original state, thereby enabling the output to be maintained in a horizontal state.

[0081] The input unit (180) is an input means such as a switch installed on the motorcycle, and can receive an on / off operation control signal for a downward beam pattern light or an upward beam pattern light from the driver and output it to the control unit (170).

[0082]

[0083] (2nd Embodiment)

[0084] FIG. 9 is an illustrative diagram showing a headlamp for a motorcycle according to another embodiment of the present invention.

[0085] A headlamp (100a) according to a second embodiment is described with reference to FIG. 9.

[0086] A headlamp (100a) according to a second embodiment may be configured to include a housing (110a) that accommodates a plurality of light source module portions (120a) and forms a gear groove portion (111) that engages with a driving portion (140a) along the outer surface perimeter.

[0087] That is, the housing (110a) according to the second embodiment may be configured in a cylindrical shape having a hollow interior, and a gear groove (111) may be formed along the outer circumference of one side of the housing (110a).

[0088] Additionally, the headlamp (100a) according to the second embodiment may be configured such that the driving unit (140a) rotates the housing (110a) so that the light source module (120a) rotates around the optical axis (C).

[0089] The headlamp (100a) according to the second embodiment differs from the headlamp (100) according to the first embodiment in that it is configured such that a driving unit (140a) can rotate the housing (110a) from the outside with respect to a housing (110a) equipped with a plurality of light source modules (120a).

[0090] To this end, the headlamp (100a) according to the second embodiment may be configured to include a bearing part (130a) installed on the outside of the housing (110a) so that the housing (110a) can rotate according to the operation of the driving part (140a).

[0091] That is, the driving unit (140a) performs forward or reverse rotation operations outside the housing (110) according to the operation control signal of the control unit (170, see FIG. 5), and the driving gear (141a) installed at the end of the rotation axis of the driving unit (140a) meshes with the gear groove (111) formed in the housing (110a) so that the housing (110a) can rotate to the left or right around the optical axis (C) according to the rotation direction of the driving unit (140a).

[0092] In addition, the headlamp (100a) according to the second embodiment has a difference in the configuration of the light source module part (120a).

[0093] In addition, the light source module (120a) according to the second embodiment may be configured to include a light source unit composed of a plurality of light-emitting elements that output light in a downward beam pattern and light in an upward beam pattern, a heat dissipation unit that absorbs and emits heat generated from the light source unit, and an optical system that concentrates and outputs light output from the light source unit.

[0094] The light source module part (120a) according to the second embodiment is configured to be fixed to the housing (110a), unlike the light source part, heat dissipation part, and part of the optical system of the light source module part (120) according to the first embodiment, which are configured to be rotatable inside the housing (110).

[0095] That is, the light source module part (120a) according to the second embodiment rotates the housing (110a) to the left or right direction so that the entire light source module part (120a) installed in the housing (110a) rotates, and when a beam pattern is generated due to the tilt of the vehicle body as in FIG. 10(a), the housing (110a) is rotated to maintain a horizontal state as in FIG. 10(b).

[0096]

[0097] (Third Embodiment)

[0098] FIG. 11 is an illustrative diagram illustrating a motorcycle headlamp according to another embodiment of the present invention, and FIG. 12 is an exploded perspective view illustrating a motorcycle headlamp according to the embodiment of FIG. 11.

[0099] As shown in FIGS. 11 and 12, a headlamp (100b) according to a third embodiment may be configured to include a light source module (120b), a bearing part (130b) that supports the light source module (120b) to rotate according to the operation of a driving part (140b), a first optical system (151b) that collects light of a downward beam pattern from the light source module (120b), a second optical system (152b) that collects light of an upward beam pattern, and a third optical system (153b) that disperses and outputs light collected from the first optical system (151b) or the second optical system (152b).

[0100] The headlamp (100b) according to the third embodiment differs from the headlamp (100) according to the first embodiment in the configuration of the light source module part (120b) and the driving part (140b).

[0101] A light source module (120b) according to a third embodiment may be configured to include a light source unit (121) composed of a first light source unit (121a) that outputs light in a downward beam pattern and a second light source unit (121b) that outputs light in an upward beam pattern, a heat dissipation unit (122') that absorbs and emits heat generated from the light source unit (120b), and a rotation support unit (124) installed at the end of the heat dissipation unit (122') to support the light source module (120b) so that it can rotate.

[0102] The rotational support member (124) may be configured to include a disc-shaped support base (124a) and a rotation axis (124b) extending a certain length from the support base (124a).

[0103] Additionally, the rotating support member (124) can be fixed to the heat dissipation member (122') using a fastening member (124) that passes through a through hole (124') formed in the support member base (124a) and is coupled to the heat dissipation member (122').

[0104] Additionally, the light source module (120b) may be configured to further include a pulley (125) that is installed on a rotating support (124) and engages with a driving unit (140b) to transmit the rotational force of the driving unit (140b).

[0105] The pulley (125) has a gear groove formed on its outer circumference and meshes with the drive gear (141b) installed in the drive unit (140b) so that the rotational force of the drive unit (140b) can be transmitted to the light source module (120b).

[0106] The driving unit (140b) is installed on the outside of the housing (110b) and is configured to include a driving gear (141b) that meshes with a pulley (125), so that the light source module (120b) can be operated to rotate to the left or right around the optical axis (C) according to the rotational direction of the driving unit (140b).

[0107] Meanwhile, in the headlamp (100b) according to the third embodiment, the housing (110b) is fixed to the vehicle body, and the rotation axis (124b) of the rotation support member (124) is fixed to rotatably at any position on the vehicle body. When tilting occurs, a driving member (140b) installed on the outside of the housing (110b) rotates the pulley (125) to rotate only the light source module member (120b) so that the beam pattern can be maintained in a horizontal state.

[0108]

[0109] (Fourth Embodiment)

[0110] FIG. 13 is an illustrative diagram showing a headlamp for a motorcycle according to another embodiment of the present invention.

[0111] As shown in FIG. 13, the headlamp (100c) according to the fourth embodiment may be configured to include a plurality of headlamps (100b, 100b', 100b") arranged in a vertical line.

[0112] A repetitive description of the plurality of headlamps (100b, 100b', 100b") based on the third embodiment is omitted. In this embodiment, for convenience of explanation, a configuration in which the plurality of headlamps (100b, 100b', 100b") are arranged in a vertical direction is described, but it is not limited thereto, and the plurality of headlamps (100b, 100b', 100b") may also be arranged in a line in a horizontal direction.

[0113] In addition, for convenience of explanation, three headlamps (100b, 100b', 100b") are described as examples, but they are not limited to this and can be modified in various ways as needed.

[0114] In the headlamp (100c) according to the fourth embodiment, as in the first embodiment, the control unit (170, see FIG. 5) analyzes tilt information input from the sensor unit (160, see FIG. 5) to calculate rolling information of the light source module unit (120b, 120b', 120b") and, based on the calculated rolling information, operates the driving unit (140c) to control the light source module unit (120b, 120b', 120b") to rotate around the optical axis.

[0115] To this end, the headlamp (100c) may have a pulley (125, 125', 125") installed on each light source module (120b, 120b', 120b") which is individually installed on each headlamp (100b, 100b', 100b") arranged in a row and operates to rotate in a left or right direction around the optical axis, and the pulley (125, 125', 125") may be installed on each of the light source modules (120b, 120b', 120b").

[0116] Additionally, the headlamp (100c) may be configured to include a timing belt (142) that is in contact with at least a portion of individual pulleys (125, 125', 125"), and the driving unit (140c) is configured to be connected to the timing belt (142) through a driving unit pulley (141c), thereby allowing the light source module (120b, 120b', 120b") to rotate together in conjunction with the operation of the driving unit (140c).

[0117] Here, individual pulleys (125, 125', 125") and driving pulleys (141c) may have gear grooves formed on their outer circumferences, and the timing belt (142) may have protrusions formed on its inner surface to mesh with the gear grooves formed on the pulleys (125, 125', 125") and driving pulleys (141c).

[0118] In this way, according to the fourth embodiment, when tilting is detected while one side of each headlamp (100b, 100b', 100b") arranged in a row is fixed to a vehicle body or an optional headlamp housing (not shown) and the other side of each headlamp (100b, 100b', 100b") is rotatably fixed to a vehicle body or a headlamp housing, the drive unit (140c) rotates the pulley (125, 125', 125") of each headlamp (100b, 100b', 100b") connected via a timing belt (142), thereby causing the light source module (120b, 120b', 120b") of each headlamp (100b, 100b', 100b") to rotate in a leftward or rightward direction around the optical axis, the beam pattern Ensure that the horizontal position is maintained.

[0119] Therefore, by detecting the tilt of the vehicle body due to cornering while riding the motorcycle and controlling the headlamp to roll in the opposite direction of the tilt, the light emitted from the headlamp can be controlled to maintain a horizontal light distribution around the optical axis, and sufficient visibility can be provided to the motorcycle rider.

[0120] As described above, although the present invention has been explained with reference to preferred embodiments, those skilled in the art will understand that various modifications and changes can be made to the present invention without departing from the spirit and scope of the invention as described in the following claims.

[0121] In addition, the drawing numbers described in the claims of the present invention are provided for clarity and convenience of explanation only and are not limited thereto, and in the process of describing the embodiments, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of explanation.

[0122] Furthermore, the terms described above are defined in consideration of their functions in the present invention, and since these may vary depending on the intentions or practices of the user or operator, the interpretation of these terms should be based on the content throughout this specification.

[0123] Furthermore, it is obvious that a person skilled in the art to which the present invention pertains can make various modifications including the technical concept according to the present invention from the description of the present invention, even if not explicitly shown or described, and such modifications still fall within the scope of the rights of the present invention.

[0124] Furthermore, the above embodiments described with reference to the attached drawings are described for the purpose of explaining the present invention, and the scope of the present invention is not limited to these embodiments.

[0125] [Explanation of the symbol]

[0126] 100, 100a, 100b, 100b', 100b", 100c : Headlamp

[0127] 110, 110a, 110b : Housing 111 : Gear groove

[0128] 120, 120a, 120b: Light source module section 121: Light source section

[0129] 121a: First light source unit 121b: Second light source unit

[0130] 122, 122' : Heat dissipation section 122a : First heat dissipation section

[0131] 122a' : Gear groove section 122b : Second heat dissipation section

[0132] 122b' : Heat dissipation fin 123 : Bearing mounting groove

[0133] 124: Rotating support 124': Through hole

[0134] 124" : Fastening part 124a : Support part base

[0135] 124b : Rotation axis 125, 125', 125" : Pulley

[0136] 130, 130a, 130b: Bearing section 131: Bearing

[0137] 140, 140a, 140b, 140c: Drive unit 141, 141a, 141b: Drive gear

[0138] 141c: Drive pulley 142: Timing belt

[0139] 150, 150b: Optical system 151, 151b: First optical system

[0140] 151a: First optical system incident section 152, 152b: Second optical system

[0141] 152a: Second optical system incident section 153, 153b: Third optical system

[0142] 160 : Sensor unit 170 : Control unit

[0143] 180 : Input section

Claims

1. As a headlamp for a motorcycle (100, 100a, 100b, 100c), The control unit (170) analyzes the tilt information input from the sensor unit (160) to calculate the rolling information of the light source module unit (120, 120a, 120b), and A motorcycle headlamp characterized by operating a driving unit (140, 140a, 140b, 140c) based on the above-determined rolling information to control the light source module unit (120, 120a, 120b) to rotate around the optical axis (C).

2. In Paragraph 1, The headlamp (100) comprises a housing (110) that accommodates the light source module (120) and the driving unit (140). A motorcycle headlamp characterized in that the above driving unit (140) is installed inside the housing (110) and operates so that the light source module (120) rotates in the left or right direction around the optical axis (C) inside the housing (110).

3. In Paragraph 2, The above headlamp (100) further comprises a bearing part (130) that supports the light source module part (120) to rotate according to the operation of the driving part (140) inside the housing (110), thereby forming a headlamp for a motorcycle.

4. In Paragraph 3, The light source module (120) comprises a light source unit (121) composed of a plurality of light-emitting elements that output light in a downward beam pattern and light in an upward beam pattern; A heat dissipation unit (122) that absorbs and emits heat generated from the light source unit (120) and is equipped with a gear groove unit (122a') that engages with the driving unit (140) along one side of the circumference; and It includes a bearing part installation groove (123) formed in the heat dissipation part (122), and A motorcycle headlamp characterized in that the heat dissipation part (122) rotates to the left or right depending on the rotation direction of the driving part (140).

5. In Paragraph 4, The above headlamp (100) further comprises an optical system (150) having a first optical system (151) that collects light of a downward beam pattern output from the light source unit (121), a second optical system (152) that collects light of an upward beam pattern, and a third optical system (153) that disperses and outputs light collected from the first optical system (151) or the second optical system (152).

6. In Paragraph 5, A motorcycle headlamp characterized in that the first optical system (151) and the second optical system (152) rotate together in conjunction with the rolling motion of the light source module (120) rotating around the optical axis (C).

7. In Paragraph 1, The headlamp (100a) comprises a housing (110a) that accommodates a plurality of light source module portions (120a) and forms a gear groove portion (111) that engages with the driving portion (140a) along the outer surface perimeter. A motorcycle headlamp characterized in that the above driving unit (140a) rotates the housing (110a) so that the light source module (120a) rotates to the left or right direction around the optical axis (C).

8. In Paragraph 7, A motorcycle headlamp characterized by further including a bearing part (130a) which is installed on the outside of the housing (110a) and supports the housing (110a) to rotate according to the operation of the driving part (140a).

9. In Paragraph 8, A headlamp for a motorcycle, characterized in that the light source module (120a) comprises a light source unit composed of a plurality of light-emitting elements that output light in a downward beam pattern and light in an upward beam pattern, a heat dissipation unit that absorbs and emits heat generated from the light source unit, and an optical system that concentrates and outputs light output from the light source unit.

10. In Paragraph 1, The headlamp (100b) comprises: a housing (110b) that accommodates a light source module (120b), a bearing part (130b) that supports the light source module (120b) to rotate according to the operation of the driving part (140b), and an optical system (150b) that converts and outputs light output from the light source module (120b) into an arbitrary beam pattern. A motorcycle headlamp characterized in that the above driving unit (140b) operates to rotate the light source module (120b) to the left or right direction around the optical axis (C) outside the housing (110b).

11. In Paragraph 10, The light source module (120b) above is a light source unit (121) composed of a plurality of light-emitting elements that output light in a downward beam pattern and light in an upward beam pattern; A heat dissipation unit (122') that absorbs and emits heat generated from the light source unit (120b); A rotating support member (124) installed in the heat dissipation member (122') to support the light source module member (120b) so that it rotates; and A motorcycle headlamp characterized by including a pulley (125) installed on the above-mentioned rotating support member (124) and meshing with the above-mentioned driving member (140b) to transmit the rotational force of the above-mentioned driving member (140b).

12. In Paragraph 1, The above headlamp (100c) comprises a plurality of headlamps (100b, 100b', 100b") arranged in a line in either a vertical or horizontal direction; A pulley (125, 125', 125") that operates to rotate a light source module (120b, 120b', 120b") installed in each of the above head lamps (100b, 100b', 100b") in a leftward or rightward direction around an optical axis (C); and It includes a timing belt (142) that is in close contact with at least a portion of the pulley (125, 125', 125"), and A motorcycle headlamp characterized in that the above-described drive unit (140c) is connected to the timing belt (142) through the drive unit pulley (141c) and operates to rotate the light source module unit (120b, 120b', 120b").

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