CN210462861U - Car light module and reflection configuration - Google Patents

Car light module and reflection configuration Download PDF

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Publication number
CN210462861U
CN210462861U CN201921381923.0U CN201921381923U CN210462861U CN 210462861 U CN210462861 U CN 210462861U CN 201921381923 U CN201921381923 U CN 201921381923U CN 210462861 U CN210462861 U CN 210462861U
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China
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lens
light
reflecting surface
reflector
cut
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CN201921381923.0U
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仇智平
李聪
陆剑清
李辉
祝贺
桑文慧
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HASCO Vision Technology Co Ltd
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HASCO Vision Technology Co Ltd
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Priority to CN201921381923.0U priority Critical patent/CN210462861U/en
Priority to PCT/CN2020/076919 priority patent/WO2021036218A1/en
Priority to JP2022512433A priority patent/JP7300554B2/en
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Abstract

The utility model relates to a vehicle lighting technology field especially relates to a car light module, including speculum and lens, the front end of speculum is equipped with speculum connecting portion, and the rear end of lens is equipped with lens connecting portion, and speculum connecting portion are connected with the cooperation of lens connecting portion, make speculum and lens relatively fixed. Still relate to a car light module, including speculum and lens, the speculum includes first plane of reflection, second plane of reflection and third plane of reflection, and car light module still includes the fourth plane of reflection, and first plane of reflection is used for forming central area light shape, and the second plane of reflection is used for forming the regional light shape of widening, and third plane of reflection and fourth plane of reflection are used for forming III district light shapes jointly, the overall structure that fourth plane of reflection and speculum set up as an organic whole. Still relate to a reflection configuration, including speculum and cut-off line structure, cut-off line structure is used for forming the cut-off line of light shape, and the integral structure that cut-off line structure and speculum set up as an organic whole. All have higher optical system precision.

Description

Car light module and reflection configuration
Technical Field
The utility model relates to a vehicle lighting technology field especially relates to a car light module and a reflection configuration.
Background
In the field of vehicle lamp technology, a vehicle lamp module refers to a device having a lens or a component of equivalent structure as a final light-emitting element and used for low beam or high beam illumination of an automotive headlamp. In recent years, as the development of the automobile industry is matured and stabilized, the variety of the lamp modules is diversified, and more requirements are put on the comprehensive performance of the lamp modules, such as the uniformity of the shape of the low beam or the high beam of the automobile headlamp, the visibility of the low beam, the heat dissipation performance, the brightness of the high beam, the structure, the weight and the volume of the module, and the like.
Taking low beam illumination as an example, according to the law, as shown in fig. 1, the low beam shape formed by the lamp module includes a central region a, a widened region B, a iii-region C, a 50L dark region D, and a cut-off line E, as shown in fig. 2, the widened region B partially coincides with the central region a for increasing the low beam illumination range. Accordingly, the vehicle lamp module has an optical structure for forming light shapes of the respective regions. The vehicle lamp module in the prior art mainly has the following defects.
(1) The brightness of the central region of the light shape is low. The reflector of the existing car lamp module is only provided with a smooth reflecting surface, the size of the light diffusion angle reflected by the reflecting surface is basically consistent, the diffusion angle reflected to the light shape of the finally formed car lamp is also consistent, so that the light emitted to the light shape central area is not concentrated enough, the light shape brightness of the central area is not high enough, but the higher the brightness of the light shape central area is in the allowed range of the regulations, the better the visibility of the road surface of a driver is improved, and the reflecting surface of the reflector of the existing car lamp module cannot meet the requirement.
(2) The volume is large. The existing car lamp module using reflector as primary optical element adopts LED light source, and the luminous flux per unit area is only 300-2If the light shape meeting the regulation brightness is obtained, a plurality of LED light sources need to be arranged, so that the light emitting area is large, a reflector with a large reflecting surface is needed to be matched, correspondingly, the focal length of the reflector is long, the size of a lens matched with the reflector is also large, generally, the lens is 50mm high and 70mm wide, and in order to ensure the light efficiency, the focal length of the lens is also long, so that the size of the whole car lamp module is large.
(3) The optical system has low accuracy. On one hand, if an ideal light shape of the car lamp is to be obtained, the relative position precision of the primary optical element and the lens needs to be ensured, and the existing car lamp module is characterized in that the primary optical element and the radiator are positioned and installed, and the lens support are positioned and installed, and then are positioned and installed with the radiator or are positioned and installed with the radiator through a transition support. On the other hand, the optical structures that present car light module group is used for forming cut-off line, 50L dark space and III district etc. all set up on the lens support, and the lens support front end is used for installing lens, and the rear end is used for carrying out fixed connection with the radiator, need guarantee the relative position precision of primary optical element, lens support and lens three in other words, just can obtain the light shape that accords with the regulation requirement, and the relative position precision of three is more difficult to guarantee, leads to optical system precision also more difficult to guarantee.
(4) The dispersion phenomenon is severe. The thickness of the upper end and the lower end of a lens adopted by the existing car lamp module is very thin, and light rays which are irradiated to the upper end and the lower end of the lens can generate large deflection, so that the serious dispersion phenomenon is caused, and the regulation requirement is not met.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a car light module that optical system precision is high to overcome prior art's above-mentioned defect.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a car light module, including speculum and lens, the front end of speculum is equipped with speculum connecting portion, and the rear end of lens is equipped with lens connecting portion, and speculum connecting portion are connected with the cooperation of lens connecting portion, make speculum and lens relatively fixed.
Preferably, the reflector further comprises a circuit board, wherein the circuit board is provided with a positioning hole, and the rear end of the reflector is provided with a positioning pin which is in plug-in fit with the positioning hole.
Preferably, the reflector includes a first reflecting surface, a second reflecting surface and a third reflecting surface, the car lamp module further includes a fourth reflecting surface, the first reflecting surface is used for forming a central area light shape, the second reflecting surface is used for forming a widening area light shape, the third reflecting surface and the fourth reflecting surface are used for forming a zone III light shape together, and the fourth reflecting surface and the reflector are of an integral structure integrally arranged.
Preferably, the reflector further comprises a cut-off line structure for forming a cut-off line of the light shape, and the cut-off line structure and the reflector are integrally arranged to form a whole structure.
Preferably, the LED lamp further comprises a shielding block for controlling the brightness of a 50L dark space of the light shape, and the shielding block and the reflector are integrally arranged.
Preferably, the third reflecting surface and the first reflecting surface, and the third reflecting surface and the second reflecting surface are located on different ellipsoids.
Preferably, the radius of curvature of the lens is R, the height of the lens is H and satisfies: h is less than or equal to 4R/3.
The utility model also provides a car light module, including speculum and lens, the speculum includes first plane of reflection, second plane of reflection and third plane of reflection, and car light module still includes the fourth plane of reflection, and first plane of reflection is used for forming central zone light shape, and the second plane of reflection is used for forming the regional light shape of widening, and third plane of reflection and fourth plane of reflection are used for forming III district light shapes jointly, the overall structure that the fourth plane of reflection and speculum set up as an organic whole.
Preferably, the reflector further comprises a cut-off line structure for forming a cut-off line of the light shape, and the cut-off line structure and the reflector are integrally arranged to form a whole structure.
Preferably, the LED lamp further comprises a shielding block for controlling the brightness of a 50L dark space of the light shape, and the shielding block and the reflector are integrally arranged.
Preferably, the third reflecting surface and the first reflecting surface, and the third reflecting surface and the second reflecting surface are located on different ellipsoids.
Preferably, the radius of curvature of the lens is R, the height of the lens is H and satisfies: h is less than or equal to 4R/3.
The utility model also provides a reflection configuration, including the speculum with cut off the line structure, cut off the line structure and be used for forming the cut-off line of light shape, the overall structure that cut-off line structure and speculum set up as an organic whole.
Preferably, the reflector includes a first reflective surface, a second reflective surface and a third reflective surface, the reflective structure further includes a fourth reflective surface, the first reflective surface is used to form a central area light shape, the second reflective surface is used to form a widened area light shape, the third reflective surface and the fourth reflective surface are used to form a zone iii light shape together, and the fourth reflective surface and the reflector are an integral structure integrally arranged.
Preferably, the third reflecting surface and the first reflecting surface, and the third reflecting surface and the second reflecting surface are located on different ellipsoids.
Preferably, the LED lamp further comprises a shielding block for controlling the brightness of a 50L dark space of the light shape, and the shielding block and the reflector are integrally arranged.
Compared with the prior art, the utility model discloses the progress that has showing:
the utility model provides a pair of car light module is connected through the cooperation of speculum connecting portion and lens connecting portion, assembles into a structure with speculum and lens and directly confirms relative position between them, has realized the direct positioning between speculum and the lens. When the reflector and the lens are assembled on the circuit board and the radiator, because the reflector and the lens have fixed assembling and positioning relation, positioning errors between the reflector and the lens cannot be generated due to the assembly of the reflector and the circuit board and the radiator, namely, multiple assembling errors are reduced, so that the positioning accuracy and the installation reliability of the reflector and the lens can be ensured, and the optical system has higher accuracy.
The utility model provides a pair of car light module, establish the overall structure that sets up as an organic whole with fourth plane of reflection with the speculum, make a third plane of reflection and fourth plane of reflection that is used for forming the first plane of reflection of central zone light shape, a second plane of reflection that is used for forming the regional light shape of widening and is used for forming III district light shapes have relatively fixed positional relation, can not produce the error because of the assembly relation between speculum and the lens, consequently only need guarantee the assembly precision between speculum and the lens and can ensure the optical system precision, thereby higher optical system precision has.
The utility model provides a reflection configuration, will be established the overall structure that sets up as an organic whole by line structure and speculum for the speculum that is used for reflection light to form the illumination light shape has relatively fixed positional relation with the line structure that ends that is used for forming the cut-off line of light shape, can not produce the error because of the fitting relation between speculum and lens or other components, consequently only need guarantee the assembly precision between speculum and lens or other components and can ensure the optical system precision, thereby have higher optical system precision.
Drawings
Fig. 1 is a schematic view of a low beam pattern.
Fig. 2 is a schematic diagram of the center region and the widening region of the low beam shape.
Fig. 3 is a schematic view of an optical assembly of a vehicle lamp module according to an embodiment of the present invention.
Fig. 4 is a schematic longitudinal sectional view of a reflector of a vehicle lamp module according to an embodiment of the present invention.
Fig. 5 is a schematic view of an optical path of light reflected by the first reflecting surface in the vehicle lamp module according to the embodiment of the present invention.
Fig. 6 is a schematic view of the light path of the light reflected by the second reflecting surface in the vehicle lamp module according to the embodiment of the present invention.
Fig. 7 is a schematic view of the light path of the light reflected by the third reflecting surface and the fourth reflecting surface in the vehicle lamp module according to the embodiment of the present invention.
Fig. 8 is a schematic structural view of a viewing angle of the vehicle lamp module according to the embodiment of the present invention.
Fig. 9 is a schematic structural view of another view angle of the vehicle lamp module according to the embodiment of the present invention.
Fig. 10 is a schematic longitudinal sectional view of a lamp module according to an embodiment of the present invention.
Fig. 11 is an exploded view of the lamp module according to the embodiment of the present invention.
Fig. 12 is a schematic view of a connection structure between a lens and a reflector in a vehicle lamp module according to an embodiment of the present invention.
Fig. 13 is a schematic view of a connection structure of the lens, the reflector and the circuit board in the vehicle lamp module according to the embodiment of the present invention.
Fig. 14 is a longitudinal sectional view of fig. 13.
Fig. 15 is a schematic structural diagram of a view angle of the reflector for forming a low beam shape in the vehicle lamp module according to the embodiment of the present invention.
Fig. 16 is a schematic structural diagram of another view angle when the reflector is used to form a low beam shape in the vehicle lamp module according to the embodiment of the present invention.
Wherein the reference numerals are as follows:
A. central region B, widened region
C. III zone D, 50L dark zone
E. Cut-off line 1, light source
2. Mirror 2a, first reflecting surface
2b, a second reflecting surface 2c, and a third reflecting surface
2d, fourth reflecting surface 21, and mirror connecting part
22. First connecting hole 23 and positioning pin
3. Lens 3a and light-emitting surface of lens
31. Lens connection part 32 and first connection pin
33. Second connecting pin 4 and circuit board
41. Positioning hole 5 and heat sink
6. Mounting screw 7, lens hood
71. Second connecting hole 8 and cut-off line structure
9. Stop block
Detailed Description
The following describes the present invention in further detail with reference to the accompanying drawings. These embodiments are provided only for illustrating the present invention and are not intended to limit the present invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 to 16, a first aspect of the present invention provides a vehicle lamp module. The car lamp module is used for forming a car lamp illumination light shape. As shown in fig. 1 and 2, according to the regulations, the low beam shape formed by the lamp module of the present embodiment includes a central region a, a widened region B, a region iii C, a 50L dark region D, and a cut-off line E, and the widened region B partially coincides with the central region a for increasing the low beam irradiation range.
Referring to fig. 10 and 11, the vehicle lamp module of the present embodiment includes a reflector 2 and a lens 3, the front end of the reflector 2 is provided with a reflector connecting portion 21, the rear end of the lens 3 is provided with a lens connecting portion 31, and the reflector connecting portion 21 is connected with the lens connecting portion 31 in a matching manner, so that the reflector 2 and the lens 3 are relatively fixed. Therefore, the reflector 2 and the lens 3 are assembled into an integral structure through the matching connection of the reflector connecting part 21 and the lens connecting part 31, so that the relative positions of the reflector 2 and the lens 3 are directly determined, and the reflector 2 and the lens 3 are directly positioned. When the reflector 2 and the lens 3 are assembled on the circuit board 4 and the radiator 5, because the reflector 2 and the lens 3 have fixed assembly positioning relation, positioning errors between the reflector 2 and the lens 3 caused by the assembly of the reflector 2 and the circuit board 4 and the radiator 5 can not be generated, namely, multiple assembly errors are reduced, so that the positioning accuracy and the installation reliability of the reflector 2 and the lens 3 can be ensured, and higher optical system accuracy is achieved. It should be noted that, in the prior art, there is an implementation manner in which the mirror and the lens holder are integrated and then directly positioned with the lens, and the mirror and the lens holder of this implementation manner are integrated, so that the structure is very complex, and the mirror is used as an important optical element, so that the processing accuracy of the mirror can be guaranteed to ensure a high accuracy of the optical system. Compare prior art, speculum 2 and the lens 3 direct positioning connection in this embodiment, simple structure, speculum 2 processing is easy moreover, and optical system precision is higher.
The matching connection mode of the reflector connection part 21 and the lens connection part 31 can be any one of threaded connection, riveting, gluing and welding. Preferably, the reflector connecting portion 21 and the lens connecting portion 31 are connected in a riveting manner, and the positioning device has the advantages of convenience in operation and accuracy in positioning.
Specifically, referring to fig. 11 and 12, the reflector connecting portion 21 is provided with a first connecting hole 22, the lens connecting portion 31 is provided with a first connecting pin 32, and the first connecting pin 32 is inserted into and matched with the first connecting hole 22. During assembly, the reflector connecting part 21 is butted with the lens connecting part 31, the first connecting pin 32 is inserted into the first connecting hole 22 and can be riveted with the first connecting hole 22, and positioning connection between the reflector connecting part 21 and the lens connecting part 31, namely positioning connection between the reflector 2 and the lens 3 is realized. Preferably, the reflector connecting portion 21 may be provided with two first connecting holes 22, and correspondingly, the lens connecting portion 31 is provided with two first connecting pins 32 respectively engaged with the two first connecting holes 22. One of the two first connection holes 22 is a round hole or a waist-shaped hole with the diameter matched with that of the corresponding first connection pin 32, and is used for positioning the relative position of the reflector 2 and the lens 3; the other first connection hole 22 is a circular hole having a diameter larger than that of the corresponding first connection pin 32 for accomplishing the riveting of the mirror connection part 21 and the lens connection part 31. Preferably, one mirror connecting portion 21 is provided above and below the front end of the mirror 2, and two first connecting holes 22 are provided on each mirror connecting portion 21, preferably, two first connecting holes 22 at opposite corners are used as positioning holes for positioning, and in order to avoid over-positioning, one of which is a round hole and the other is a waist-shaped hole, correspondingly, a lens connecting part 31 is respectively arranged at the upper part and the lower part of the rear end of the lens 3, when assembling, the upper mirror connecting portion 21 is butted against the upper lens connecting portion 31, the lower mirror connecting portion 21 is butted against the lower lens connecting portion 31, therefore, the relative positions of the reflector 2 and the lens 3 are jointly limited by the two pairs of connected reflector connecting parts 21 and lens connecting parts 31, and the positioning accuracy and the assembling stability of the reflector 2 and the lens 3 can be ensured.
Referring to fig. 11, 13 and 14, the vehicle lamp module of the present embodiment further includes a circuit board 4, the circuit board 4 is provided with a positioning hole 11, the rear end of the reflector 2 is provided with a positioning pin 23, and the positioning pin 23 is inserted into and matched with the positioning hole 41. When the reflector 2 is assembled on the circuit board 4, the relative position of the reflector 2 and the circuit board 4 can be limited through the insertion fit of the positioning pin 23 and the positioning hole 41, and the accurate positioning between the reflector 2 and the circuit board 4 is realized. Therefore, the reflector 2 and the circuit board 4 are assembled together through the insertion fit connection of the positioning pin 23 and the positioning hole 41, the relative position of the reflector 2 and the circuit board 4 is determined, and the reflector 2 and the circuit board 4 are directly positioned. Because the lens 3 is also assembled with the reflector 2 into an integral structure and is directly positioned, the precision of the optical system can be ensured only by ensuring the positioning accuracy between the lens 3 and the reflector 2 and between the reflector 2 and the circuit board 4, and multiple assembly errors are reduced, so that the precise assembly is simpler and more convenient. Preferably, the circuit board 4 may be provided with two positioning holes 41, and correspondingly, the rear end of the reflector 2 is provided with two positioning pins 23, and the two positioning pins 23 are respectively in insertion fit with the two positioning holes 41, so that the positioning accuracy and the assembling stability between the reflector 2 and the circuit board 4 can be improved.
Further, the circuit board 4 is connected to and positioned with the heat sink 5. Referring to fig. 11, the reflector 2, the circuit board 4 and the heat sink 5 may be fixedly connected by mounting screws 6 (holes through which the mounting screws 6 pass on the circuit board 4 are not shown).
Referring to fig. 10 and 11, preferably, the vehicle lamp module of the present embodiment further includes a light shield 7, the light shield 7 is connected to the lens 3, the lens 3 is accommodated in the light shield 7, only the light emitting surface 3a is exposed, and the light can be prevented from being emitted from the side surface of the lens 3 by the light shield 7. The connection mode of the light shield 7 and the lens 3 can be any one of threaded connection, riveting, gluing and welding. Preferably, the light shield 7 is connected with the lens 3 in a riveting manner, and has the advantages of convenience in operation and accuracy in positioning.
Specifically, referring to fig. 10 and 11, the light shield 7 is provided with a second connection hole 71, the lens connection portion 31 of the lens 3 is provided with a second connection pin 33, and the second connection pin 33 is in inserted fit with the second connection hole 71. During assembly, the light shield 7 is sleeved on the lens 3, and the second connecting pin 33 is inserted into the second connecting hole 71 and can be riveted with the second connecting hole 71, so that the positioning connection between the light shield 7 and the lens 3 is realized. Preferably, two second connection holes 71 may be formed in the light shield 7, and correspondingly, two second connection pins 33 respectively inserted into and engaged with the two second connection holes 71 are formed on the lens connection portion 31. One second connecting hole 71 of the two second connecting holes 71 is a round hole or a waist-shaped hole with the diameter matched with that of the corresponding second connecting pin 33, and is used for positioning the relative position of the light shield 7 and the lens 3; the other second connecting hole 71 is a circular hole having a diameter larger than that of the corresponding second connecting pin 33, and is used for riveting the light shield 7 and the lens 3. Preferably, one lens connecting portion 31 is provided at the upper and lower portions of the rear end corresponding to the lens 3, two second connecting pins 33 are provided at each lens connecting portion 31, two second connecting holes 71 are provided at the upper and lower portions of the rear end of the light shielding cover 7, preferably, two diagonal second connecting holes 71 are used as positioning holes for positioning, and one of the two second connecting holes is a round hole and the other is a waist-shaped hole to avoid over-positioning, so that the positioning accuracy and the assembling stability of the light shielding cover 7 and the lens 3 can be ensured.
Referring to fig. 14, the vehicle lamp module of the present embodiment further includes a light source 1, and the light source 1 is disposed on the circuit board 4. The light emitted from the light source 1 is reflected by the reflector 2 and then enters the lens 3, and is refracted by the lens 3 and then exits from the light exit surface 3a of the lens 3, so as to form an illumination light shape. Herein, the side closer to the light source 1 and the side farther from the lens 3 is defined as the rear side, and the side closer to the lens 3 and the side farther from the light source 1 is defined as the front side.
Further, referring to fig. 3 and 4, the reflector 2 includes a first reflective surface 2a, a second reflective surface 2b, and a third reflective surface 2c, and the lamp module of the present embodiment further includes a fourth reflective surface 2 d. The first reflecting surface 2a is used for forming a central area A light shape, the second reflecting surface 2B is used for forming a widened area B light shape, and the third reflecting surface 2C and the fourth reflecting surface 2d are used for forming a III area C light shape together. Specifically, referring to fig. 5, a first part of the light emitted from the light source 1 is emitted to the first reflective surface 2a, reflected by the first reflective surface 2a and emitted to the lens 3, and refracted by the lens 3 and emitted from the light emitting surface 3a of the lens 3, so as to form a central area a light shape. Referring to fig. 6, a second part of the light emitted from the light source 1 is emitted to the second reflecting surface 2B, reflected by the second reflecting surface 2B, emitted to the lens 3, and refracted by the lens 3 and emitted from the light emitting surface 3a of the lens 3, so as to form a light shape of the widened region B. Under the same luminous flux, the smaller the light diffusion angle is, the more the light is converged, and the brightness of the formed light shape is higher. In this embodiment, the light diffusion angle reflected by the first reflecting surface 2a is smaller than the light diffusion angle reflected by the second reflecting surface 2b, and thus, the brightness of the light shape of the central area a formed by the first reflecting surface 2a can be effectively improved, thereby improving the road surface visibility of the driver. Referring to fig. 7, a third part of the light emitted from the light source 1 is emitted to the third reflective surface 2C, reflected by the third reflective surface 2C and then emitted to the fourth reflective surface 2d, reflected by the fourth reflective surface 2d and then emitted to the lens 3, and refracted by the lens 3 and then emitted from the light emitting surface 3a of the lens 3, thereby forming a zone iii C light shape. The fourth reflective surface 2d may be any one of a flat surface, an inwardly concave curved surface, and an outwardly convex curved surface, as long as it can form a iii-zone C light shape meeting the requirements of the regulations. Because the light reflected by the third reflecting surface 2c needs to be reflected by the fourth reflecting surface 2d and then to the lens 3, and the light reflected by the first reflecting surface 2a and the second reflecting surface 2b directly reaches the lens 3, the third reflecting surface 2c and the first reflecting surface 2a, and the third reflecting surface 2c and the second reflecting surface 2b are located on different ellipsoidal surfaces.
Referring to fig. 4, in the present embodiment, a step may be formed between the first reflective surface 2a and the second reflective surface 2b, and the first reflective surface 2a and the second reflective surface 2b may be connected to each other, and the step may be formed between the first reflective surface 2a and the second reflective surface 2b through a connection surface. Therefore, the first reflecting surface 2a and the second reflecting surface 2b are not on the same smooth surface, and the first reflecting surface 2a and the second reflecting surface 2b are located on different ellipsoidal surfaces, so that different light diffusion angles can be formed after the first reflecting surface 2a and the second reflecting surface 2b reflect light, and the light diffusion angle reflected by the first reflecting surface 2a is smaller than that reflected by the second reflecting surface 2 b. The first reflecting surface 2a and the second reflecting surface 2b may be connected without forming a step, but the curvature of the first reflecting surface 2a is larger than that of the second reflecting surface 2b, so that the light diffusion angle reflected by the first reflecting surface 2a can be smaller than that reflected by the second reflecting surface 2 b. Of course, the curvatures of the first reflective surface 2a and the second reflective surface 2b may be the same, and such a reflective structure is easier to process on the same smooth surface, but the brightness of the light shape formed in the central area a is relatively low.
Referring to fig. 13 and 14, the fourth reflecting surface 2d is preferably a unitary structure provided integrally with the reflector 2. Therefore, the first reflecting surface 2a, the second reflecting surface 2b, the third reflecting surface 2c and the fourth reflecting surface 2d have relatively fixed position relations, errors caused by the assembling relation between the reflecting mirror 2 and the lens 3 can be avoided, and the precision of the optical system can be ensured only by ensuring the assembling precision between the reflecting mirror 2 and the lens 3. Preferably, the fourth reflecting surface 2d may be provided on the mirror connecting portion 21, at which the front end of the mirror 2 is located downward.
Referring to fig. 15 and 16, the lamp module of the present embodiment further includes a cut-off line structure 8 and a shielding block 9. The cut-off line structure 8 is used for forming a cut-off line E of a light shape, light emitted to the first reflecting surface 2a from the light source 1 is reflected by the first reflecting surface 2a, is cut off by the cut-off line structure 8 and then is emitted to the lens 3, and is refracted by the lens 3 and then is emitted from the light emitting surface 3a of the lens 3, so that the light shape of a central area A with the cut-off line E is formed; the light emitted from the light source 1 to the second reflecting surface 2B is reflected by the second reflecting surface 2B, then is cut by the cut-off line structure 8, and then is emitted to the lens 3, and is refracted by the lens 3 and then is emitted from the light emitting surface 3a of the lens 3, so as to form a light shape of the widening area B. The shielding block 9 is used for controlling the brightness of the 50L dark area D of the light shape, and the shielding block 9 can shield part of light rays before being cut off by the cut-off line structure 8, so that the illumination of the 50L dark area D of the light shape is reduced to a value meeting the requirements of regulations, and the brightness of the 50L dark area D of the light shape is controlled. The stopper 9 may be a cylindrical or a slope-shaped protrusion. In the prior art, the blocking block mostly adopts a convex point or a rectangular block, but the convex point can make a 50L dark area be a dark point which is more abrupt; the rectangular block can enable another inflection point except for the original inflection point to appear near the cut-off line, so that when the inflection point is captured in the light distribution, the inflection point is captured by mistake to influence the light distribution effect. Therefore, the shielding block 9 is cylindrical or convex, so as to avoid the phenomenon of abrupt light shape or false inflection point capture.
The cut-off line structure 8 and the reflector 2 can be an integral structure, and the shielding block 9 and the reflector 2 can also be an integral structure. Therefore, the cut-off line structure 8, the shielding block 9 and the reflector 2 have relatively fixed position relation, no error is generated due to the assembly relation between the reflector 2 and the lens 3, and the precision of the optical system can be ensured only by ensuring the assembly precision between the reflector 2 and the lens 3. Preferably, the cut-off line structure 8 and the blocking piece 9 are integrally formed with the reflector 2, and both the cut-off line structure 8 and the blocking piece 9 can be disposed on the reflector connecting portion 21 below the front end of the reflector 2.
Preferably, the fourth reflective surface 2d, the cut-off structure 8 and the blocking piece 9 are integrally formed with the reflector 2. Then, the positional relationships of the first reflecting surface 2a, the second reflecting surface 2b, the third reflecting surface 2c, the fourth reflecting surface 2d, the cut-off line structure 8 and the blocking piece 9 are all fixed, so that no error is generated due to the assembling relationship between the reflecting mirror 2 and the lens 3, and the precision of the optical system can be ensured only by ensuring the assembling precision between the reflecting mirror 2 and the lens 3.
The car light module of this embodiment can realize the low beam, also can realize the distance light. When the vehicle lamp module is applied to main low beam, the shape of the cut-off line structure 8 is the same as the shape of the bright-dark cut-off line of the low beam, which has a step difference (see fig. 16). When the vehicle lamp module is applied to assist the low beam, the shape of the cut-off line structure 8 may be smooth and have no level difference, and may also be the same as the shape of the bright and dark cut-off line of the low beam. When the vehicle lamp module is applied to the high beam, the shape of the cut-off line structure 8 may be set according to the shape of the lower boundary of the high beam shape.
Preferably, the radius of curvature of the lens 3 is R, the height of the lens 3 is H and satisfies: h is less than or equal to 4R/3, the height H can be realized by cutting the upper end and the lower end of the existing lens and only reserving the thicker part in the middle, so that the size of the lens 3 can be reduced on the premise of ensuring the lighting effect of the lens 3, the size of the whole car lamp module is greatly reduced, the miniature car lamp module is formed, and the corresponding manufacturing cost is also greatly reduced. If the size of the optical element of the car lamp module in the prior art is simply reduced in proportion, the reduced car lamp module has the defects of unsatisfactory light shape effect, poor light effect and incapability of providing a good lighting effect for a driver. In the present embodiment, the size of the lens 3 is not simply scaled down, but the upper and lower ends of the lens are cut off based on the existing lens, and the height of the lens 3 is reduced under the same curvature, so that the light efficiency of the lens 3 is ensured, and the size of the lens 3 is reduced. Meanwhile, the thickness of the reserved middle part of the lens 3 is thick, so that the serious dispersion caused by the excessively thin thickness of the lens is weakened, and the dispersion phenomenon can be effectively improved. In practical applications, the cutting sizes of the upper and lower ends of the existing lens may be the same, and the heights of the obtained lens 3 extending from the center to the upper and lower ends are both H/2, and of course, the cutting sizes of the upper and lower ends of the existing lens may also be different. The left and right width of the lens can be made long without affecting dispersion, so the forward projection of the lens 3 in this embodiment is a horizontally-oriented rectangle.
In the vehicle lamp module of this embodiment, the light source 1 may be an LED light source. However, in view of reducing the volume of the vehicle lamp module, it is preferable that the light source 1 is a laser light source. The car light module of this embodiment, its light source 1 adopts laser source, is equipped with above-mentioned optical assembly structure, can realize reducing the volume of car light module greatly. The luminous flux of the laser light source per unit area can reach 1200lm/mm2On the left and right sides, only one laser light source is needed to achieve the light shape brightness required by the regulations, the light emitting area is small, therefore, the size of the reflector 2 can be small, and correspondingly, the size of the lens 3 can be small. The focal length of the reflector 2 in the present embodiment can be made to be 10mm-20mm, preferably 10mm, while the focal length of the reflector in the prior art can be made to be 10mm-20mmCan only achieve 30mm-40 mm. The lens 3 in this embodiment can: the upper and lower height H is 5mm-15mm, preferably 10 mm; the width is 15mm-35mm, preferably 30 mm. In order to make as much light reflected by the mirror 2 incident on the lens 3 as possible, the focal length of the lens 3 is reduced accordingly. The focal length of the lens 3 in the embodiment can be 10mm-20mm, while the focal length of the lens in the prior art can only be 30mm-40 mm. Therefore, in the embodiment, the length of the whole car lamp module in the front-back direction is greatly reduced, the length can be about 80mm, and the length of the car lamp module in the prior art is about 130mm-150 mm; similarly, the width and height of the whole vehicle lamp module are reduced, and the width is about 35mm and the height is about 40mm, while the width of the vehicle lamp module in the prior art is about 90mm-100mm and the height is about 90mm-100 mm. Compared with the prior art, the volume of the whole car lamp module is greatly reduced, and the car lamp module belongs to a size car lamp module. From this, the car light module of this embodiment is because of adopting the laser source that luminous area is little and unit area luminous intensity is high for the size and the focus of speculum 2 and lens 3 all reduce greatly, compact structure, small and exquisite, make the volume of whole car light module reduce greatly, corresponding manufacturing cost is greatly reduced also. Have good commercial value prospect simultaneously, because miniature car lamp module very adapts to the figurative development trend of vehicle, can make current headlight disappear even, arrange the car lamp module in unobtrusive position in order to be used for the illumination of vehicle, for example positions such as bumper, grid, help further promoting the pleasing to the eye degree of car appearance.
As shown in fig. 1 to 16, a second aspect of the present invention further provides a vehicle lamp module. The car lamp module is used for forming a car lamp illumination light shape. As shown in fig. 1 and 2, according to the regulations, the low beam shape formed by the lamp module of the present embodiment includes a central region a, a widened region B, a region iii C, a 50L dark region D, and a cut-off line E, and the widened region B partially coincides with the central region a for increasing the low beam irradiation range.
Referring to fig. 3 and 4, the vehicle lamp module of the present embodiment includes a reflector 2 and a lens 3, and may further include a light source 1, where light emitted from the light source 1 is reflected by the reflector 2 and then enters the lens 3, and is refracted by the lens 3 and then exits from a light exit surface 3a of the lens 3, so as to form a lighting shape. Herein, the side closer to the light source 1 and the side farther from the lens 3 is defined as the rear side, and the side closer to the lens 3 and the side farther from the light source 1 is defined as the front side. The reflector 2 includes a first reflective surface 2a, a second reflective surface 2b and a third reflective surface 2c, and the vehicle lamp module of the present embodiment further includes a fourth reflective surface 2 d. The first reflecting surface 2a is used for forming a central area A light shape, the second reflecting surface 2B is used for forming a widened area B light shape, and the third reflecting surface 2C and the fourth reflecting surface 2d are used for forming a III area C light shape together. Specifically, referring to fig. 5, a first part of the light emitted from the light source 1 is emitted to the first reflective surface 2a, reflected by the first reflective surface 2a and emitted to the lens 3, and refracted by the lens 3 and emitted from the light emitting surface 3a of the lens 3, so as to form a central area a light shape. Referring to fig. 6, a second part of the light emitted from the light source 1 is emitted to the second reflecting surface 2B, reflected by the second reflecting surface 2B, emitted to the lens 3, and refracted by the lens 3 and emitted from the light emitting surface 3a of the lens 3, so as to form a light shape of the widened region B. Referring to fig. 7, a third part of the light emitted from the light source 1 is emitted to the third reflective surface 2C, reflected by the third reflective surface 2C and then emitted to the fourth reflective surface 2d, reflected by the fourth reflective surface 2d and then emitted to the lens 3, and refracted by the lens 3 and then emitted from the light emitting surface 3a of the lens 3, thereby forming a zone iii C light shape. Referring to fig. 13 and 14, in the present embodiment, the fourth reflecting surface 2d is an integral structure integrally provided with the reflecting mirror 2. Therefore, the first reflecting surface 2a, the second reflecting surface 2b, the third reflecting surface 2c and the fourth reflecting surface 2d have relatively fixed position relations, errors cannot be generated due to the assembling relation between the reflecting mirror 2 and the lens 3, and the precision of the optical system can be ensured only by ensuring the assembling precision between the reflecting mirror 2 and the lens 3, so that the precision of the optical system is higher.
Under the same luminous flux, the smaller the light diffusion angle is, the more the light is converged, and the brightness of the formed light shape is higher. In the present embodiment, it is preferable that the light diffusion angle reflected by the first reflecting surface 2a is smaller than the light diffusion angle reflected by the second reflecting surface 2b, and thus, the brightness of the light shape of the center area a formed by the first reflecting surface 2a can be effectively improved, thereby improving the road surface visibility of the driver.
Referring to fig. 4, in the present embodiment, a step may be formed between the first reflective surface 2a and the second reflective surface 2b, and the first reflective surface 2a and the second reflective surface 2b may be connected to each other, and the step may be formed between the first reflective surface 2a and the second reflective surface 2b through a connection surface. Therefore, the first reflecting surface 2a and the second reflecting surface 2b are not on the same smooth surface, and the first reflecting surface 2a and the second reflecting surface 2b are located on different ellipsoidal surfaces, so that different light diffusion angles can be formed after the first reflecting surface 2a and the second reflecting surface 2b reflect light, and the light diffusion angle reflected by the first reflecting surface 2a is smaller than that reflected by the second reflecting surface 2 b. The first reflecting surface 2a and the second reflecting surface 2b may be connected without forming a step, but the curvature of the first reflecting surface 2a is larger than that of the second reflecting surface 2b, so that the light diffusion angle reflected by the first reflecting surface 2a can be smaller than that reflected by the second reflecting surface 2 b. Of course, the curvatures of the first reflective surface 2a and the second reflective surface 2b may be the same, and such a reflective structure is easier to process on the same smooth surface, but the brightness of the light shape formed in the central area a is relatively low.
The fourth reflective surface 2d may be any one of a flat surface, an inwardly concave curved surface, and an outwardly convex curved surface, as long as it can form a iii-zone C light shape meeting the requirements of the regulations. Because the light reflected by the third reflecting surface 2c needs to be reflected by the fourth reflecting surface 2d and then to the lens 3, and the light reflected by the first reflecting surface 2a and the second reflecting surface 2b directly reaches the lens 3, the third reflecting surface 2c and the first reflecting surface 2a, and the third reflecting surface 2c and the second reflecting surface 2b are located on different ellipsoidal surfaces.
Further, referring to fig. 15 and 16, the lamp module of the present embodiment further includes a cut-off line structure 8 and a shielding block 9. The cut-off line structure 8 is used for forming a cut-off line E of a light shape, light emitted to the first reflecting surface 2a from the light source 1 is reflected by the first reflecting surface 2a, is cut off by the cut-off line structure 8, then is emitted to the lens 3, is refracted by the lens 3, and then is emitted from the light emitting surface 3a of the lens 3, so that the light shape of a central area A with the cut-off line E is formed; the light emitted from the light source 1 to the second reflecting surface 2B is reflected by the second reflecting surface 2B, then is cut by the cut-off line structure 8, and then is emitted to the lens 3, and is refracted by the lens 3 and then is emitted from the light emitting surface 3a of the lens 3, so as to form a light shape of the widening area B. The shielding block 9 is used for controlling the brightness of the 50L dark area D of the light shape, and the shielding block 9 can shield part of light rays before being cut off by the cut-off line structure 8, so that the illumination of the 50L dark area D of the light shape is reduced to a value meeting the requirements of regulations, and the brightness of the 50L dark area D of the light shape is controlled. The stopper 9 may be a cylindrical or a slope-shaped protrusion. In the prior art, the blocking block mostly adopts a convex point or a rectangular block, but the convex point can make a 50L dark area be a dark point which is more abrupt; the rectangular block can enable another inflection point except for the original inflection point to appear near the cut-off line, so that when the inflection point is captured in the light distribution, the inflection point is captured by mistake to influence the light distribution effect. Therefore, the shielding block 9 is cylindrical or convex, so as to avoid the phenomenon of abrupt light shape or false inflection point capture.
The cut-off line structure 8 and the reflector 2 can be an integral structure, and the shielding block 9 and the reflector 2 can also be an integral structure. Therefore, the cut-off line structure 8, the shielding block 9 and the reflector 2 have relatively fixed position relation, no error is generated due to the assembly relation between the reflector 2 and the lens 3, and the precision of the optical system can be ensured only by ensuring the assembly precision between the reflector 2 and the lens 3. Preferably, the stop line structure 8 and the stop block 9 are both integral with the reflector 2.
Preferably, the fourth reflective surface 2d, the cut-off structure 8 and the blocking piece 9 are integrally formed with the reflector 2. Then, the positional relationships of the first reflecting surface 2a, the second reflecting surface 2b, the third reflecting surface 2c, the fourth reflecting surface 2d, the cut-off line structure 8 and the blocking piece 9 are all fixed, so that no error is generated due to the assembling relationship between the reflecting mirror 2 and the lens 3, and the precision of the optical system can be ensured only by ensuring the assembling precision between the reflecting mirror 2 and the lens 3.
The car light module of this embodiment can realize the low beam, also can realize the distance light. When the vehicle lamp module is applied to main low beam, the shape of the cut-off line structure 8 is the same as the shape of the bright-dark cut-off line of the low beam, which has a step difference (see fig. 16). When the vehicle lamp module is applied to assist the low beam, the shape of the cut-off line structure 8 may be smooth and have no level difference, and may also be the same as the shape of the bright and dark cut-off line of the low beam. When the vehicle lamp module is applied to the high beam, the shape of the cut-off line structure 8 may be set according to the shape of the lower boundary of the high beam shape.
Preferably, the radius of curvature of the lens 3 is R, the height of the lens 3 is H and satisfies: h is less than or equal to 4R/3, the height H can be realized by cutting the upper end and the lower end of the existing lens and only reserving the thicker part in the middle, so that the size of the lens 3 can be reduced on the premise of ensuring the lighting effect of the lens 3, the size of the whole car lamp module is greatly reduced, the miniature car lamp module is formed, and the corresponding manufacturing cost is also greatly reduced. If the size of the optical element of the car lamp module in the prior art is simply reduced in proportion, the reduced car lamp module has the defects of unsatisfactory light shape effect, poor light effect and incapability of providing a good lighting effect for a driver. In the present embodiment, the size of the lens 3 is not simply scaled down, but the upper and lower ends of the lens are cut off based on the existing lens, and the height of the lens 3 is reduced under the same curvature, so that the light efficiency of the lens 3 is ensured, and the size of the lens 3 is reduced. Meanwhile, the thickness of the reserved middle part of the lens 3 is thick, so that the serious dispersion caused by the excessively thin thickness of the lens is weakened, and the dispersion phenomenon can be effectively improved. In practical applications, the cutting sizes of the upper and lower ends of the existing lens may be the same, and the heights of the obtained lens 3 extending from the center to the upper and lower ends are both H/2, and of course, the cutting sizes of the upper and lower ends of the existing lens may also be different. The left and right width of the lens can be made long without affecting dispersion, so the forward projection of the lens 3 in this embodiment is a horizontally-oriented rectangle.
Furthermore, a reflector connecting part 21 is arranged at the front end of the reflector 2, a lens connecting part 31 is arranged at the rear end of the lens 3, and the reflector connecting part 21 is matched and connected with the lens connecting part 31, so that the reflector 2 and the lens 3 are relatively fixed. Therefore, the reflector 2 and the lens 3 are assembled into an integral structure through the matching connection of the reflector connecting part 21 and the lens connecting part 31, so that the relative positions of the reflector 2 and the lens 3 are directly determined, and the reflector 2 and the lens 3 are directly positioned. When the reflector 2 and the lens 3 are assembled on the circuit board 4 and the radiator 5, because the reflector 2 and the lens 3 have fixed assembly positioning relation, positioning errors between the reflector 2 and the lens 3 caused by the assembly of the reflector 2 and the circuit board 4 and the radiator 5 can not be generated, namely, multiple assembly errors are reduced, so that the positioning accuracy and the installation reliability of the reflector 2 and the lens 3 can be ensured, and higher optical system accuracy is achieved. It should be noted that, in the prior art, there is an implementation manner in which the mirror and the lens holder are integrated and then directly positioned with the lens, and the mirror and the lens holder of this implementation manner are integrated, so that the structure is very complex, and the mirror is used as an important optical element, so that the processing accuracy of the mirror can be guaranteed to ensure a high accuracy of the optical system. Compare prior art, speculum 2 and the lens 3 direct positioning connection in this embodiment, simple structure, speculum 2 processing is easy moreover, and optical system precision is higher.
Preferably, the fourth reflecting surface 2d, the cut-off line structure 8 and the shielding block 9 may be disposed on the reflector connecting portion 21 of which the front end of the reflector 2 is located below.
The matching connection mode of the reflector connection part 21 and the lens connection part 31 can be any one of threaded connection, riveting, gluing and welding. Preferably, the reflector connecting portion 21 and the lens connecting portion 31 are connected in a riveting manner, and the positioning device has the advantages of convenience in operation and accuracy in positioning.
Specifically, referring to fig. 11 and 12, the reflector connecting portion 21 is provided with a first connecting hole 22, the lens connecting portion 31 is provided with a first connecting pin 32, and the first connecting pin 32 is inserted into and matched with the first connecting hole 22. During assembly, the reflector connecting part 21 is butted with the lens connecting part 31, the first connecting pin 32 is inserted into the first connecting hole 22 and can be riveted with the first connecting hole 22, and positioning connection between the reflector connecting part 21 and the lens connecting part 31, namely positioning connection between the reflector 2 and the lens 3 is realized. Preferably, the reflector connecting portion 21 may be provided with two first connecting holes 22, and correspondingly, the lens connecting portion 31 is provided with two first connecting pins 32 respectively engaged with the two first connecting holes 22. One of the two first connection holes 22 is a round hole or a waist-shaped hole with the diameter matched with that of the corresponding first connection pin 32, and is used for positioning the relative position of the reflector 2 and the lens 3; the other first connection hole 22 is a circular hole having a diameter larger than that of the corresponding first connection pin 32 for accomplishing the riveting of the mirror connection part 21 and the lens connection part 31. Preferably, one mirror connecting portion 21 is provided above and below the front end of the mirror 2, and two first connecting holes 22 are provided on each mirror connecting portion 21, preferably, two first connecting holes 22 at opposite corners are used as positioning holes for positioning, and in order to avoid over-positioning, one of which is a round hole and the other is a waist-shaped hole, correspondingly, a lens connecting part 31 is respectively arranged at the upper part and the lower part of the rear end of the lens 3, when assembling, the upper mirror connecting portion 21 is butted against the upper lens connecting portion 31, the lower mirror connecting portion 21 is butted against the lower lens connecting portion 31, therefore, the relative positions of the reflector 2 and the lens 3 are jointly limited by the two pairs of connected reflector connecting parts 21 and lens connecting parts 31, and the positioning accuracy and the assembling stability of the reflector 2 and the lens 3 can be ensured.
Referring to fig. 11, 13 and 14, the lamp module of the present embodiment further includes a circuit board 4, and the light source 1 is disposed on the circuit board 4. The circuit board 4 is provided with a positioning hole 41, the rear end of the reflector 2 is provided with a positioning pin 23, and the positioning pin 23 is in inserted fit with the positioning hole 41. When the reflector 2 is assembled on the circuit board 4, the relative position of the reflector 2 and the circuit board 4 can be limited through the insertion fit of the positioning pin 23 and the positioning hole 41, and the accurate positioning between the reflector 2 and the circuit board 4 is realized. Therefore, the reflector 2 and the circuit board 4 are assembled together through the insertion fit connection of the positioning pin 23 and the positioning hole 41, the relative position of the reflector 2 and the circuit board 4 is determined, and the reflector 2 and the circuit board 4 are directly positioned. Because the lens 3 is also assembled with the reflector 2 into an integral structure and is directly positioned, the precision of the optical system can be ensured only by ensuring the positioning accuracy between the lens 3 and the reflector 2 and between the reflector 2 and the circuit board 4, and multiple assembly errors are reduced, so that the precise assembly is simpler and more convenient. Preferably, the circuit board 4 may be provided with two positioning holes 41, and correspondingly, the rear end of the reflector 2 is provided with two positioning pins 23, and the two positioning pins 23 are respectively in insertion fit with the two positioning holes 41, so that the positioning accuracy and the assembling stability between the reflector 2 and the circuit board 4 can be improved.
Further, the circuit board 4 is connected to and positioned with the heat sink 5. Referring to fig. 11, the reflector 2, the circuit board 4 and the heat sink 5 may be fixedly connected by mounting screws 6 (holes through which the mounting screws 6 pass on the circuit board 4 are not shown).
Referring to fig. 10 and 11, preferably, the vehicle lamp module of the present embodiment further includes a light shield 7, the light shield 7 is connected to the lens 3, the lens 3 is accommodated in the light shield 7, only the light emitting surface 3a is exposed, and the light can be prevented from being emitted from the side surface of the lens 3 by the light shield 7. The connection mode of the light shield 7 and the lens 3 can be any one of threaded connection, riveting, gluing and welding. Preferably, the light shield 7 is connected with the lens 3 in a riveting manner, and has the advantages of convenience in operation and accuracy in positioning.
Specifically, referring to fig. 10 and 11, the light shield 7 is provided with a second connection hole 71, the lens connection portion 31 of the lens 3 is provided with a second connection pin 33, and the second connection pin 33 is in inserted fit with the second connection hole 71. During assembly, the light shield 7 is sleeved on the lens 3, and the second connecting pin 33 is inserted into the second connecting hole 71 and can be riveted with the second connecting hole 71, so that the positioning connection between the light shield 7 and the lens 3 is realized. Preferably, two second connection holes 71 may be formed in the light shield 7, and correspondingly, two second connection pins 33 respectively inserted into and engaged with the two second connection holes 71 are formed on the lens connection portion 31. One second connecting hole 71 of the two second connecting holes 71 is a round hole or a waist-shaped hole with the diameter matched with that of the corresponding second connecting pin 33, and is used for positioning the relative position of the light shield 7 and the lens 3; the other second connecting hole 71 is a circular hole having a diameter larger than that of the corresponding second connecting pin 33, and is used for riveting the light shield 7 and the lens 3. Preferably, one lens connecting portion 31 is provided at the upper and lower portions of the rear end corresponding to the lens 3, two second connecting pins 33 are provided at each lens connecting portion 31, two second connecting holes 71 are provided at the upper and lower portions of the rear end of the light shielding cover 7, preferably, two diagonal second connecting holes 71 are used as positioning holes for positioning, and one of the two second connecting holes is a round hole and the other is a waist-shaped hole to avoid over-positioning, so that the positioning accuracy and the assembling stability of the light shielding cover 7 and the lens 3 can be ensured.
In the vehicle lamp module of this embodiment, the light source 1 may be an LED light source. However, in view of reducing the volume of the vehicle lamp module, it is preferable that the light source 1 is a laser light source. The car light module of this embodiment, its light source 1 adopts laser source, is equipped with above-mentioned optical assembly structure, can realize reducing the volume of car light module greatly. The luminous flux of the laser light source per unit area can reach 1200lm/mm2On the left and right sides, only one laser light source is needed to achieve the light shape brightness required by the regulations, the light emitting area is small, therefore, the size of the reflector 2 can be small, and correspondingly, the size of the lens 3 can be small. The focal length of the reflector 2 in this embodiment can be made to be 10mm-20mm, preferably 10mm, while the focal length of the reflector in the prior art can only be made to be 30mm-40 mm. The lens 3 in this embodiment can: the upper and lower height H is 5mm-15mm, preferably 10 mm; the width is 15mm-35mm, preferably 30 mm. In order to make as much light reflected by the mirror 2 incident on the lens 3 as possible, the focal length of the lens 3 is reduced accordingly. The focal length of the lens 3 in the embodiment can be 10mm-20mm, while the focal length of the lens in the prior art can only be 30mm-40 mm. Therefore, in the embodiment, the length of the whole car lamp module in the front-back direction is greatly reduced, the length can be about 80mm, and the length of the car lamp module in the prior art is about 130mm-150 mm; similarly, the width and height of the whole vehicle lamp module are reduced, and the width is about 35mm and the height is about 40mm, while the width of the vehicle lamp module in the prior art is about 90mm-100mm and the height is about 90mm-100 mm. Compared with the prior art, the volume of the whole car lamp module is greatly reduced, and the car lamp module belongs to a size car lamp module. From this, the car light module of this embodiment is because of adopting the laser source that luminous area is little and unit area luminous intensity is high for the size and the focus of speculum 2 and lens 3 all reduce greatly, compact structure, small and exquisite, make the volume of whole car light module reduce greatly, corresponding manufacturing cost is greatly reduced also. At the same time haveGood commercial value prospect because miniature car light module ten minutes adapts to the figurative development trend of vehicle, can make current headlight disappear even, arranges car light module in the position that is not inconspicuous and is used for the illumination of vehicle, for example positions such as bumper, grid, helps further to promote the pleasing to the eye degree of car appearance.
As shown in fig. 1 to 16, a third aspect of the present invention further provides a reflection structure, which is used to reflect the light emitted from the light source 1 to the lens 3, so that the light is refracted by the lens 3 and then emitted from the light emitting surface 3a of the lens 3, thereby forming an illumination light shape. Herein, the side closer to the light source 1 and the side farther from the lens 3 is defined as the rear side, and the side closer to the lens 3 and the side farther from the light source 1 is defined as the front side. As shown in fig. 1 and 2, according to the regulations, the low beam shape includes a central region a, a widened region B, a iii-region C, a 50L dark region D, and a cut-off line E, the widened region B partially coinciding with the central region a for increasing the low beam irradiation range.
Referring to fig. 3, 4, 15 and 16, the reflection structure of the present embodiment includes a reflector 2 and a cut-off line structure 8, the reflector 2 reflects the light emitted from the light source 1 to the lens 3, the cut-off line structure 8 is used for forming a cut-off line E of the light shape, the light emitted from the light source 1 to the reflector 2 is reflected by the reflector 2, is cut off by the cut-off line structure 8, and then is emitted from the light emitting surface 3a of the lens 3 after being refracted by the lens 3, so as to form the illumination light shape with the cut-off line E. In this embodiment, the cut-off line structure 8 and the reflector 2 are integrally formed, so that the reflector 2 for reflecting light to form the illumination light shape and the cut-off line structure 8 for forming the cut-off line of the light shape have a relatively fixed positional relationship, and no error is generated due to the assembly relationship between the reflector 2 and the lens 3 or other elements, and therefore, the accuracy of the optical system can be ensured only by ensuring the assembly accuracy between the reflector 2 and the lens 3 or other elements, and the optical system has high accuracy.
Referring to fig. 3 and 4, the reflector 2 includes a first reflective surface 2a, a second reflective surface 2b, and a third reflective surface 2c, and the reflective structure of the present embodiment further includes a fourth reflective surface 2 d. The first reflecting surface 2a is used for forming a central area A light shape, the second reflecting surface 2B is used for forming a widened area B light shape, and the third reflecting surface 2C and the fourth reflecting surface 2d are used for forming a III area C light shape together. Specifically, referring to fig. 5, a first part of the light emitted from the light source 1 is emitted to the first reflective surface 2a, reflected by the first reflective surface 2a and emitted to the lens 3, and refracted by the lens 3 and emitted from the light emitting surface 3a of the lens 3, so as to form a central area a light shape. Referring to fig. 6, a second part of the light emitted from the light source 1 is emitted to the second reflecting surface 2B, reflected by the second reflecting surface 2B, emitted to the lens 3, and refracted by the lens 3 and emitted from the light emitting surface 3a of the lens 3, so as to form a light shape of the widened region B. In this embodiment, the light emitted from the light source 1 to the first reflective surface 2a is reflected by the first reflective surface 2a, then is cut off by the cut-off line structure 8, and then is emitted to the lens 3, and is refracted by the lens 3 and then is emitted from the light emitting surface 3a of the lens 3, so as to form a central area a light shape with a cut-off line E; the light emitted from the light source 1 to the second reflecting surface 2B is reflected by the second reflecting surface 2B, then is cut by the cut-off line structure 8, and then is emitted to the lens 3, and is refracted by the lens 3 and then is emitted from the light emitting surface 3a of the lens 3, so as to form a light shape of the widening area B. Referring to fig. 7, a third part of the light emitted from the light source 1 is emitted to the third reflective surface 2C, reflected by the third reflective surface 2C and then emitted to the fourth reflective surface 2d, reflected by the fourth reflective surface 2d and then emitted to the lens 3, and refracted by the lens 3 and then emitted from the light emitting surface 3a of the lens 3, thereby forming a zone iii C light shape. Referring to fig. 13 and 14, in the present embodiment, the fourth reflecting surface 2d is an integral structure integrally provided with the reflecting mirror 2. Therefore, the first reflecting surface 2a, the second reflecting surface 2b, the third reflecting surface 2c and the fourth reflecting surface 2d have relatively fixed position relations, errors cannot be generated due to the assembling relation between the reflecting mirror 2 and the lens 3, and the precision of the optical system can be ensured only by ensuring the assembling precision between the reflecting mirror 2 and the lens 3, so that the precision of the optical system is higher.
Under the same luminous flux, the smaller the light diffusion angle is, the more the light is converged, and the brightness of the formed light shape is higher. In the present embodiment, it is preferable that the light diffusion angle reflected by the first reflecting surface 2a is smaller than the light diffusion angle reflected by the second reflecting surface 2b, and thus, the brightness of the light shape of the center area a formed by the first reflecting surface 2a can be effectively improved, thereby improving the road surface visibility of the driver.
Referring to fig. 4, in the present embodiment, a step may be formed between the first reflective surface 2a and the second reflective surface 2b, and the first reflective surface 2a and the second reflective surface 2b may be connected to each other, and the step may be formed between the first reflective surface 2a and the second reflective surface 2b through a connection surface. Therefore, the first reflecting surface 2a and the second reflecting surface 2b are not on the same smooth surface, and the first reflecting surface 2a and the second reflecting surface 2b are located on different ellipsoidal surfaces, so that different light diffusion angles can be formed after the first reflecting surface 2a and the second reflecting surface 2b reflect light, and the light diffusion angle reflected by the first reflecting surface 2a is smaller than that reflected by the second reflecting surface 2 b. The first reflecting surface 2a and the second reflecting surface 2b may be connected without forming a step, but the curvature of the first reflecting surface 2a is larger than that of the second reflecting surface 2b, so that the light diffusion angle reflected by the first reflecting surface 2a can be smaller than that reflected by the second reflecting surface 2 b. Of course, the curvatures of the first reflective surface 2a and the second reflective surface 2b may be the same, and such a reflective structure is easier to process on the same smooth surface, but the brightness of the light shape formed in the central area a is relatively low.
The fourth reflective surface 2d may be any one of a flat surface, an inwardly concave curved surface, and an outwardly convex curved surface, as long as it can form a iii-zone C light shape meeting the requirements of the regulations. Because the light reflected by the third reflecting surface 2c needs to be reflected by the fourth reflecting surface 2d and then to the lens 3, and the light reflected by the first reflecting surface 2a and the second reflecting surface 2b directly reaches the lens 3, the third reflecting surface 2c and the first reflecting surface 2a, and the third reflecting surface 2c and the second reflecting surface 2b are located on different ellipsoidal surfaces.
Further, referring to fig. 15 and 16, the vehicle lamp module of the present embodiment further includes a blocking block 9, the blocking block 9 is used for controlling the brightness of the 50L dark area D of the light shape, and the blocking block 9 can block part of the light before being cut off by the cut-off line structure 8, so that the illuminance of the 50L dark area D of the low light shape is reduced to a value meeting the requirements of the regulations, thereby controlling the brightness of the 50L dark area D of the light shape. The stopper 9 may be a cylindrical or a slope-shaped protrusion. In the prior art, the blocking block mostly adopts a convex point or a rectangular block, but the convex point can make a 50L dark area be a dark point which is more abrupt; the rectangular block can enable another inflection point except for the original inflection point to appear near the cut-off line, so that when the inflection point is captured in the light distribution, the inflection point is captured by mistake to influence the light distribution effect. Therefore, the shielding block 9 is cylindrical or convex, so as to avoid the phenomenon of abrupt light shape or false inflection point capture.
The blocking block 9 and the reflecting mirror 2 can also be of an integral structure, so that the blocking line structure 8, the blocking block 9 and the reflecting mirror 2 have a relatively fixed position relation, errors can not be generated due to the assembly relation between the reflecting mirror 2 and the lens 3, and the precision of the optical system can be ensured only by ensuring the assembly precision between the reflecting mirror 2 and the lens 3.
Preferably, the fourth reflective surface 2d, the cut-off structure 8 and the blocking piece 9 are integrally formed with the reflector 2. Then, the positional relationships of the first reflecting surface 2a, the second reflecting surface 2b, the third reflecting surface 2c, the fourth reflecting surface 2d, the cut-off line structure 8 and the blocking piece 9 are all fixed, so that no error is generated due to the assembling relationship between the reflecting mirror 2 and the lens 3, and the precision of the optical system can be ensured only by ensuring the assembling precision between the reflecting mirror 2 and the lens 3.
The reflection structure of the embodiment can realize low beam and high beam. When the reflection structure is applied to main near light, the shape of the cut-off line structure 8 is the same as the shape of the bright-dark cut-off line of the near light shape, which has a step difference (see fig. 16). When the reflection structure is applied to assist the near light, the shape of the cut-off line structure 8 may be smooth and have no level difference, or may be the same as the shape of the bright-dark cut-off line of the near light shape. When the reflection structure is applied to the high beam, the shape of the cut-off line structure 8 may be set according to the shape of the lower boundary of the high beam shape.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (16)

1. The utility model provides a car light module, its characterized in that, includes speculum (2) and lens (3), the front end of speculum (2) is equipped with speculum connecting portion (21), the rear end of lens (3) is equipped with lens connecting portion (31), speculum connecting portion (21) with lens connecting portion (31) cooperation is connected, makes speculum (2) with lens (3) relatively fixed.
2. The car light module according to claim 1, characterized by further comprising a circuit board (4), wherein a positioning hole (41) is formed in the circuit board (4), and a positioning pin (23) which is inserted into and matched with the positioning hole (41) is formed at the rear end of the reflector (2).
3. The vehicle lamp module according to claim 1, wherein the reflector (2) comprises a first reflective surface (2a), a second reflective surface (2B) and a third reflective surface (2C), and further comprises a fourth reflective surface (2d), the first reflective surface (2a) is used for forming a central area (a) light shape, the second reflective surface (2B) is used for forming a widening area (B) light shape, the third reflective surface (2C) and the fourth reflective surface (2d) are used for forming a zone iii light shape together, and the fourth reflective surface (2d) and the reflector (2) are of an integral structure integrally arranged.
4. The vehicle lamp module according to claim 1 or 3, further comprising a cut-off line structure (8) for forming a cut-off line (E) of a light shape, wherein the cut-off line structure (8) is an integral structure integrally provided with the reflector (2).
5. The vehicle lamp module set according to claim 1 or 3, further comprising a shielding block (9) for controlling the brightness of a 50L dark area (D) of a light shape, wherein the shielding block (9) and the reflector (2) are integrally arranged in a whole structure.
6. The vehicle lamp module set according to claim 3, wherein the third reflecting surface (2c) and the first reflecting surface (2a) and the third reflecting surface (2c) and the second reflecting surface (2b) are located on different ellipsoids.
7. The vehicle lamp module according to claim 1, wherein the radius of curvature of the lens (3) is R, the height of the lens (3) is H and satisfies: h is less than or equal to 4R/3.
8. The utility model provides a car light module, its characterized in that includes speculum (2) and lens (3), speculum (2) include first plane of reflection (2a), second plane of reflection (2B) and third plane of reflection (2C), car light module still includes fourth plane of reflection (2d), first plane of reflection (2a) are used for forming central area (A) light shape, second plane of reflection (2B) are used for forming widening regional (B) light shape, third plane of reflection (2C) with fourth plane of reflection (2d) are used for forming III district (C) light shapes jointly, fourth plane of reflection (2d) with speculum (2) is the overall structure of an organic whole setting.
9. The vehicle lamp module according to claim 8, further comprising a cut-off line structure (8) for forming a cut-off line (E) of the light shape, wherein the cut-off line structure (8) is an integral structure integrally provided with the reflector (2).
10. The vehicle lamp module set according to claim 8, further comprising a shielding block (9) for controlling the brightness of a 50L dark area (D) of a light shape, wherein the shielding block (9) is an integral structure with the reflector (2).
11. The vehicle lamp module set according to claim 8, wherein the third reflecting surface (2c) and the first reflecting surface (2a), and the third reflecting surface (2c) and the second reflecting surface (2b) are located on different ellipsoids.
12. The vehicle lamp module according to claim 8, wherein the radius of curvature of the lens (3) is R, the height of the lens (3) is H, and the following are satisfied: h is less than or equal to 4R/3.
13. The reflecting structure is characterized by comprising a reflecting mirror (2) and a cut-off line structure (8), wherein the cut-off line structure (8) is used for forming a cut-off line (E) of an optical shape, and the cut-off line structure (8) and the reflecting mirror (2) are integrally arranged.
14. A reflecting structure according to claim 13, characterized in that the mirror (2) comprises a first reflecting surface (2a), a second reflecting surface (2B) and a third reflecting surface (2C), the reflecting structure further comprising a fourth reflecting surface (2d), the first reflecting surface (2a) being adapted to form a central area (a) light shape, the second reflecting surface (2B) being adapted to form a widening area (B) light shape, the third reflecting surface (2C) and the fourth reflecting surface (2d) being adapted to together form a zone iii light shape, the fourth reflecting surface (2d) being an integral structure provided integrally with the mirror (2).
15. The structure of claim 14, wherein the third reflective surface (2c) and the first reflective surface (2a), and the third reflective surface (2c) and the second reflective surface (2b) are all located on different ellipsoids.
16. The reflecting structure according to claim 13, characterized in that it further comprises a blocking block (9) for controlling the brightness of the 50L dark area (D) of the light shape, said blocking block (9) being of a unitary construction with said reflector (2).
CN201921381923.0U 2019-08-23 2019-08-23 Car light module and reflection configuration Active CN210462861U (en)

Priority Applications (3)

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CN201921381923.0U CN210462861U (en) 2019-08-23 2019-08-23 Car light module and reflection configuration
PCT/CN2020/076919 WO2021036218A1 (en) 2019-08-23 2020-02-27 Micro vehicle lamp module and reflecting structure
JP2022512433A JP7300554B2 (en) 2019-08-23 2020-02-27 Micro vehicle light module and reflective structure

Applications Claiming Priority (1)

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CN201921381923.0U CN210462861U (en) 2019-08-23 2019-08-23 Car light module and reflection configuration

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113834033A (en) * 2020-06-08 2021-12-24 华域视觉科技(上海)有限公司 Car lamp module, car lamp and vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113834033A (en) * 2020-06-08 2021-12-24 华域视觉科技(上海)有限公司 Car lamp module, car lamp and vehicle

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