CN215336114U

CN215336114U - Low-beam module, vehicle headlamp and vehicle

Info

Publication number: CN215336114U
Application number: CN202120537869.5U
Authority: CN
Inventors: 鲁康; 郭青杰
Original assignee: Mind Electronics Appliance Co Ltd
Current assignee: Mind Electronics Appliance Co Ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-12-28
Anticipated expiration: 2031-03-15

Abstract

The utility model provides a low beam module, a vehicle headlamp and a vehicle, wherein the low beam module comprises: a lens, a plurality of light gathering members and a plurality of light sources; one light source corresponds to one light gathering piece, and one light source is fixed at the light inlet of one light gathering piece; the plurality of light gathering pieces are arranged on the light incident surface of the lens and are in an integrated structure with the lens, and the light gathering pieces are used for gathering light rays emitted by the light source and projecting the light rays towards the lens; the bottom surface of the lens is provided with a groove, the depth of the groove is smaller than the height of the lens, light emitted by the light-gathering piece passes through the groove to form light in preset distribution, and then the light is emitted out through the light-emitting surface of the lens to form a near light shape. Compared with the prior art, this embodiment is with present spotlight piece, light screen and reflector all integrated on lens, and the passing beam module of this embodiment is easily installed, can avoid the mounted position of any part in the present passing beam module to have the deviation all can influence the formation of passing beam light shape.

Description

Low-beam module, vehicle headlamp and vehicle

Technical Field

The utility model relates to the technical field of vehicle illumination, in particular to a low beam module, a vehicle headlamp and a vehicle.

Background

In the prior art, a low beam module of a vehicle headlamp comprises a plurality of light sources, a light-gathering member, a light screen, a reflector and a lens, wherein the light-gathering member is used for gathering light rays emitted by the plurality of light sources and projecting the light rays; the shading plate is arranged on a projection light path of the light gathering piece to shade the light projected by the light gathering piece, and the shaded light is reflected to the lens through the reflector and projected to a road surface through the lens to form a low beam shape with a light and shade cut-off line.

Because the light-gathering piece, the light screen, the reflector and the lens in the existing low-beam module are all independent components, the installation positions of all the components are very important for forming the low-beam light shape, and if the installation position of any one of the components is deviated, the formation of the low-beam light shape is influenced. It is thus clear that current passing beam module requires highly to the installation accuracy of each part for passing beam module's the installation degree of difficulty is big.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a low beam module, a vehicle headlamp and a vehicle, so as to solve the technical problem of the conventional low beam module that is difficult to install.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

a low beam module, the low beam module comprising: a lens, a plurality of light gathering members and a plurality of light sources;

one light source corresponds to one light gathering piece, and one light source is fixed at the light inlet of one light gathering piece;

the plurality of light condensing pieces are arranged on the light incident surface of the lens and are in an integrated structure with the lens, and the light condensing pieces are used for condensing light rays emitted by the light source and projecting the light rays towards the lens;

the bottom surface of the lens is provided with a groove, the depth of the groove is smaller than the height of the lens, wherein light rays emitted by the light gathering piece pass through the groove to form light rays distributed in a preset mode, and then the light rays are emitted out through the light emitting surface of the lens to form a near light shape.

Further, in the width direction of the groove, the groove comprises a first groove and a second groove which are connected;

the first groove is arranged on a projection light path of one part of the light gathering piece, and the second groove is arranged on a projection light path of the other part of the light gathering piece;

the light emitted by the light gathering part passes through the first groove to form light in first preset distribution, passes through the second groove to form light in second preset distribution, and the light in the first preset distribution and the light in the second preset distribution form the light in the preset distribution.

Furthermore, the first groove is formed by a first groove wall and a second groove wall which are intersected, the first groove wall is close to the light source, the second groove wall is far away from the light source, light rays projected to the first groove wall are totally reflected and emitted from a non-light-emitting surface of the lens;

the second groove is formed by a third groove wall, a fourth groove wall and a fifth groove wall which are sequentially connected, the third groove wall is close to the light source, the fifth groove wall is far away from the light source and is opposite to the third groove wall, and the fourth groove wall is positioned between the third groove wall and the fifth groove wall;

and the light projected to the fourth groove wall is totally emitted and is emitted from the non-light-emitting surface of the lens, and the light projected to the third groove wall is refracted and is emitted from the light-emitting surface of the lens.

Furthermore, each light gathering piece is in a first conical shape; alternatively, the first and second electrodes may be,

the light-gathering part corresponding to the first groove is in a first conical shape, and the light-gathering part corresponding to the second groove is in a second conical shape;

the shape of the axial section of the first cone is a first isosceles trapezoid, and the lower bottom edge of the first isosceles trapezoid is arranged on the light incident surface of the lens;

in the height direction of the lens, the second taper comprises a first half taper and a second half taper which are connected, in the axial direction, the first half taper is half of the third taper and is close to the bottom surface of the lens, and the second half taper is half of the fourth taper and is far away from the bottom surface of the lens;

the shape of the axial cross section of the third cone is a second isosceles trapezoid, the shape of the axial cross section of the fourth cone is a third isosceles trapezoid, the length of the upper bottom edge of the second isosceles trapezoid is greater than that of the upper bottom edge of the third isosceles trapezoid, the length of the lower bottom edge of the second isosceles trapezoid is less than that of the lower bottom edge of the third isosceles trapezoid, and the lower bottom edge of the second isosceles trapezoid and the lower bottom edge of the third isosceles trapezoid are arranged on the light incident surface of the lens.

Furthermore, a concave pit is arranged at the intersection of the first groove wall and the second groove wall, and the concave pit is used for weakening the intensity of light rays emitted by the light source.

Furthermore, the light incident surface of the lens is a plane, the light emergent surface of the lens is formed by a plurality of arc surfaces which are sequentially connected, and one arc surface corresponds to one light gathering piece.

Further, the low beam module further comprises: a radiator and a circuit board;

the light sources are fixed on the circuit board at intervals, the circuit board is fixed on the light incident surface of the lens, and the light incident surface of the lens is fixed on the radiator.

Further, the low beam module further comprises: the lens cover is matched with the lens in shape and arranged on the lens;

the lens cover comprises an annular side wall and a light transmitting wall, an accommodating cavity for accommodating the lens is formed by the annular side wall and the light transmitting wall in an enclosing mode, the light transmitting wall is arranged at one end, close to the light emitting surface, of the annular side wall, the other end of the annular side wall is an opening end for the lens to penetrate through, and the opening end is fixed on the radiator;

the material of light-transmitting wall is the printing opacity material, the material of annular lateral wall is non-printing opacity material.

Compared with the prior art, the low beam module has the following advantages:

in an embodiment of the present invention, the low beam module includes: lens, a plurality of spotlight spare and a plurality of light source, a light source corresponds a spotlight spare, a light source is fixed in the light entrance department of a spotlight spare, a plurality of spotlight spares set up on the income plain noodles of lens, and with lens integrated into one piece structure, be equipped with the recess on the bottom surface of lens, the degree of depth of recess is less than the height of lens, the light that spotlight spare jetted out forms through the recess and predetermines the light that distributes, the rethread lens jets out to form the short-distance beam light shape. Compared with the prior art, this embodiment is with present spotlight piece, light screen and reflector all integrated on lens, and the passing beam module of this embodiment is easily installed, can avoid the mounted position of any part in the present passing beam module to have the deviation all can influence the formation of passing beam light shape.

Another objective of the present invention is to provide a vehicle headlamp including the low beam module.

Compared with the prior art, the vehicle headlamp provided by the utility model has the following advantages:

the vehicle headlamp and the dipped beam module have the same advantages compared with the prior art, and are not described again.

The utility model has for an object to propose a vehicle comprising such a vehicle headlamp.

Compared with the prior art, the vehicle has the following advantages:

the vehicle and the low beam module have the same advantages compared with the prior art, and are not described in detail herein.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

In the drawings:

fig. 1 is a schematic structural view of a low beam module according to an embodiment of the present invention;

fig. 2 is an exploded view of a low beam module according to an embodiment of the present invention;

FIG. 3 is a schematic view of an angle configuration of a lens according to an embodiment of the present invention;

FIG. 4 is a schematic view of another angle configuration of a lens according to an embodiment of the present invention;

fig. 5 is a schematic diagram of the illuminance of the low beam shaped screen of the low beam module according to the embodiment of the utility model;

FIG. 6 is a side view of the structure of FIG. 4;

fig. 7 is a partial schematic view at M in fig. 4.

Description of reference numerals:

the light source comprises a lens 1, a light gathering part 2, a light incoming surface 21, a light outgoing surface 22, an arc surface 221, a first cone 23, a second cone 24, a first half cone 241, a second half cone 242, a light source 3, a groove 4, a first groove 41, a first groove wall 411, a first groove wall 412, a second groove wall 42, a second groove wall 421, a third groove wall 422, a fourth groove wall 422, a fifth groove wall 423, a pit 5, a heat radiator 6, a circuit board 7, a lens cover 8, an annular side wall 81 and a light transmitting wall 82.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The existing dipped beam module tends to be miniaturized, the height of the lens is usually 40mm, and the light shape width and the light effect of the dipped beam module are difficult to balance due to the lower height.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

In an embodiment of the present invention, a low beam module is provided, referring to fig. 1 to 5, fig. 1 illustrates a schematic structure diagram of the low beam module according to the embodiment of the present invention, fig. 2 illustrates an exploded schematic structure diagram of the low beam module according to the embodiment of the present invention, fig. 3 illustrates a schematic structure diagram of an angle of a lens according to the embodiment of the present invention, fig. 4 illustrates a schematic structure diagram of another angle of the lens according to the embodiment of the present invention, fig. 5 illustrates a schematic diagram of illuminance of a low beam shape screen of the low beam module according to the embodiment of the present invention, and the low beam module may specifically include: a lens 1, a plurality of light gathering members 2 and a plurality of light sources 3; one light source 3 corresponds to one light gathering piece 2, and one light source 3 is fixed at the light inlet of one light gathering piece 2; the plurality of light gathering pieces 2 are arranged on the light incident surface 21 of the lens 1 and are in an integrated structure with the lens 1, and the light gathering pieces 2 are used for gathering light rays emitted by the light source 3 and projecting the light rays towards the lens 1; the bottom surface of the lens 1 is provided with a groove 4, the depth of the groove 4 is smaller than the height of the lens 1, wherein the light emitted by the light-gathering piece 2 passes through the groove 4 to form a preset distribution of light, and then is emitted out through the light-emitting surface 22 of the lens 1 to form a near light shape.

Specifically, as shown in fig. 1 to 3, the low beam module may specifically include a lens 1, a plurality of light gathering members 2 and a plurality of light sources 3, one light source 3 corresponds to one light gathering member 2, in practical applications, the light gathering member 2 includes a light inlet and a light outlet which are opposite, the lens 1 includes a light inlet surface 21 and a light outlet surface 22 which are opposite, one light source 3 is fixed at the light inlet of one light gathering member 2, the plurality of light gathering members 2 are disposed on the light inlet surface 21 of the lens 1, and the light gathering member 2 may gather light rays emitted from the light sources 3, that is, the light rays emitted from each light source 3 are gathered by the light inlet of the light gathering member 2 and projected toward the light inlet surface 21 of the lens 1 through the light outlet of the light gathering member 2. In order to make the light emitted from the light sources 3 uniformly irradiate the light incident surface 21 of the lens 1, each light source 3 is fixed at the center of the light incident port of the corresponding light gathering member 2.

Specifically, as shown in fig. 4, the bottom surface of the lens 1 is provided with a groove 4, and the depth of the groove 4 is not greater than the height of the lens 1, so that a part of the light emitted from the light source 3 can directly pass through the lens 1 after passing through the light collecting member 2, and a part of the light is emitted and/or refracted through the groove wall of the groove 4 and then emitted through the light emitting surface 22 and the non-light emitting surface 22 of the lens 1, so as to form a low beam shape with a cut-off line as shown in fig. 5. In practical application, the cut-off line is formed near the groove 4, and as can be seen from the figure, the light on the upper part of the cut-off line is weaker, the light near the cut-off line is weaker or even no light, and the light on the lower part of the cut-off line is stronger. As can be seen from fig. 5, the glare is located below the cut-off line, so that the distributed low beam shape reduces or avoids glare for oncoming traffic.

It should be noted that the depth of the groove 4 affects the position where the cut-off line is generated, that is, the distribution of the low beam light shape, preferably, the depth of the groove 4 is less than or equal to half of the height of the lens 1, and the depth of the groove 4 in this embodiment may not be limited, and may be set according to the actually required low beam light shape.

Specifically speaking, because light-gathering piece 2 and lens 1 are integrated into one piece structure, compare with prior art, recess 4 can be equivalent to current light screen and reflector, and light-gathering piece, light screen and reflector are all integrated on lens 1 to this embodiment, and the passing beam module of this embodiment is easily installed to, it all can influence the formation of passing beam light shape to have avoided the deviation to exist in the mounted position of any part in the current passing beam module.

In the present embodiment, in the width direction of the groove 4, the groove 4 includes a first groove 41 and a second groove 42 connected; the first groove 41 is arranged on the projection light path of one part of the light-gathering piece 2, and the second groove 42 is arranged on the projection light path of the other part of the light-gathering piece 2; the light emitted from the light gathering member 2 passes through the first groove 41 to form a first preset distribution of light, and passes through the second groove 42 to form a second preset distribution of light, wherein the first preset distribution of light and the second preset distribution of light form a preset distribution of light.

Specifically, as shown in fig. 4, in the width direction (left and right direction shown in the figure) of the groove 4, the groove 4 includes a first groove 41 and a second groove 42 connected to each other, the first groove 41 is disposed on the projection light path of one part of the light concentrating member 2, the second groove 42 is disposed on the projection light path of the other part of the light concentrating member 2, the light emitted from one part of the light concentrating member 2 passes through the first groove 41 to form a first predetermined distribution of light, the light emitted from the other part of the light concentrating member 2 passes through the second groove 42 to form a second predetermined distribution of light, the first predetermined distribution of light and the second predetermined distribution of light form a predetermined distribution of light, and the first predetermined distribution of light and the second predetermined distribution of light finally form a low beam shape shown in fig. 5.

In the embodiment of the present invention, the first groove 41 is formed by a first groove wall 411 and a second groove wall 412 which intersect with each other, the first groove wall 411 is close to the light source 3, the second groove wall 412 is far away from the light source 3, the light projected to the first groove wall 411 is totally reflected and emitted from the non-light-emitting surface 22 of the lens 1; the second groove 42 is formed by a third groove wall 421, a fourth groove wall 422 and a fifth groove wall 423 which are connected in sequence, the third groove wall 421 is close to the light source 3, the fifth groove wall 423 is far away from the light source 3 and is opposite to the third groove wall 421, and the fourth groove wall 422 is positioned between the third groove wall 421 and the fifth groove wall 423; the light projected to the fourth groove wall 422 is totally reflected and emitted from the non-light-emitting surface 22 of the lens 1, and the light projected to the third groove wall 421 is refracted and emitted from the light-emitting surface 22 of the lens 1.

Specifically, as shown in fig. 4, the first groove 41 is formed by a first groove wall 411 and a second groove wall 412 intersecting, the first groove wall 411 being close to the light source 3, and the second groove wall 412 being far from the light source 3. In practical applications, the light projected onto the first groove wall 411 may be totally reflected and emitted from the non-light-emitting surface 22 of the lens 1, and the light projected onto the first groove wall 411 may also be emitted and refracted sequentially through the first groove wall 411 and the second groove wall 412, and then emitted from the light-emitting surface 22 of the lens 1, however, according to the light with the first predetermined distribution, the light projected onto the first groove wall 411 is only totally reflected, that is, the light is emitted from the non-light-emitting surface 22 of the lens 1, so as to reduce stray light. Wherein the cut-off line at the first groove 41 is at the intersection of the first slot wall 411 and the second slot wall 412.

It should be noted that an included angle exists between the first groove 41 and the second groove 42, and the included angle between the two grooves 4 is not limited in this embodiment, as long as the inclination angle of the first groove 41 relative to the horizontal plane can satisfy the condition of total reflection.

Specifically, referring to fig. 4 to 7, fig. 6 shows a schematic side view structure of fig. 4, fig. 7 shows a partial schematic view of a position M in fig. 4, the second groove 42 is formed by a third groove wall 421, a fourth groove wall 422 and a fifth groove wall 423 that are connected in sequence, the third groove wall 421 is close to the light source 3, the fifth groove wall 423 is far away from the light source 3 and is opposite to the third groove wall 421, and the fourth groove wall 422 is located between the third groove wall 421 and the fifth groove wall 423, wherein the light projected to the fourth groove wall 422 is totally emitted and emitted from the non-light-emitting surface 22 of the lens 1 (the direction of the notch of the second groove 42), the light projected to the third groove wall 421 is refracted for the first time, refracted to the fifth groove wall 423, and then refracted for the second time, and emitted from the light-emitting surface 22 of the lens 1, so as to form a second preset distribution of light. In practical applications, the second recess 42 serves to avoid stray light exceeding the vehicle regulatory values. It should be noted that, in this embodiment, specific positions of the third groove wall 421, the fourth groove wall 422, and the fifth groove wall 423 may not be limited, and the light beams may be set to form the second predetermined distribution.

In the present embodiment, each light-concentrating element 2 has a first taper 23; or, the light gathering part 2 corresponding to the first groove 41 has a first taper 23, and the light gathering part 2 corresponding to the second groove 42 has a second taper 24; the shape of the axial cross section of the first taper 23 is a first isosceles trapezoid, the lower base of which is arranged on the light incident surface 21 of the lens 1; the second taper 24 comprises a first half taper 241 and a second half taper 242 which are connected in the height direction of the lens 1, the first half taper 241 is half of the third taper and is close to the bottom surface of the lens 1 in the axial direction, and the second half taper 242 is half of the fourth taper and is far away from the bottom surface of the lens 1; the shape of the axial cross section of the third cone is a second isosceles trapezoid, the shape of the axial cross section of the fourth cone is a third isosceles trapezoid, the length of the upper bottom edge of the second isosceles trapezoid is greater than that of the upper bottom edge of the third isosceles trapezoid, the length of the lower bottom edge of the second isosceles trapezoid is less than that of the lower bottom edge of the third isosceles trapezoid, and the lower bottom edge of the second isosceles trapezoid and the lower bottom edge of the third isosceles trapezoid are arranged on the light incident surface 21 of the lens 1.

Specifically, all the light-gathering members 2 are shaped like a first taper 23, the first taper 23 has one focal point, the axial cross section of the first taper 23 is shaped like a first isosceles trapezoid, and the lower base of the first isosceles trapezoid is disposed on the light incident surface 21 of the lens 1.

Specifically, as shown in fig. 4, the light-collecting member 2 corresponding to the first groove 41 has a first taper 23, and the light-collecting member 2 corresponding to the second groove 42 has a second taper 24. The second taper 24 includes a first half taper 241 and a second half taper 242 connected in the height direction of the lens 1, the first half taper 241 being half of the third taper and being close to the bottom surface of the lens 1, and the second half taper 242 being half of the fourth taper and being far from the bottom surface of the lens 1 in the axial direction. The shape of the axial cross section of the third cone is a second isosceles trapezoid, the shape of the axial cross section of the fourth cone is a third isosceles trapezoid, the length of the upper bottom edge of the second isosceles trapezoid is greater than that of the upper bottom edge of the third isosceles trapezoid, the length of the lower bottom edge of the second isosceles trapezoid is less than that of the lower bottom edge of the third isosceles trapezoid, and the lower bottom edge of the second isosceles trapezoid and the lower bottom edge of the third isosceles trapezoid are arranged on the light incident surface 21 of the lens 1. It should be noted that the first half cone may be a half in the axial direction of the first cone, and may be specifically set according to the actually required width of the low beam shape.

Specifically, the first half cone 241 and the second half cone 242 have different focal points, the second half cone 242 generates light rays in the far field (for example, 25 m screen) or non-convergent light rays, which are light spots with a certain width (light rays are weaker), and the first half cone 241 generates high-intensity light rays convergent near the second groove 42, so that the efficiency of the whole lens 1 can be improved, and the requirement of the illumination width of the low beam module can be met.

It should be noted that the light-emitting surface 22 corresponding to the light-gathering member 2 of the second taper 24 in the lens 1 is an auxiliary low-beam light-emitting surface 22, cut-off lines of the auxiliary low-beam light are two horizontal cut-off lines spaced up and down as shown in fig. 5, the light-emitting surface 22 corresponding to the light-gathering member 2 of the first taper 23 in the lens 1 is a main low-beam light-emitting surface 22, the cut-off lines of the main low-beam light are oblique cut-off lines connecting the two horizontal cut-off lines as shown in fig. 5, and an included angle between the oblique cut-off lines and a horizontal plane is 15 degrees or 45 degrees.

It should be noted that the first/second/third taper is not a geometric conical shape, but a non-pointed conical shape, and the axial cross-section of the geometric conical shape is an isosceles triangle.

In the embodiment of the present invention, a concave pit 55 is disposed at the intersection of the first slot wall 411 and the second slot wall 412, and the concave pit 55 is used for reducing the intensity of the light emitted from the light source 3.

In practical applications, if the light of the low beam module of the vehicle is strong, glare may be generated to the oncoming vehicle, which affects the driving safety of the oncoming vehicle, and therefore, the concave pit 55 is disposed at the intersection of the first slot wall 411 and the second slot wall 412 to weaken the intensity of the light emitted from the light source 3.

In the embodiment of the present invention, the light incident surface 21 of the lens 1 is a plane, the light emitting surface 22 of the lens 1 is formed by a plurality of arc surfaces 221 connected in sequence, and one arc surface 221 corresponds to one light gathering part 2.

Specifically, in order to improve the aesthetic property of the lens 1 and facilitate the formation of the lens 1 with a low beam shape, the light incident surface 21 of the lens 1 of the present embodiment is a plane, the light emitting surface 22 of the lens 1 is formed by a plurality of arc surfaces 221 connected in a sparse manner, and one arc surface 221 corresponds to one light collecting member 2. It should be noted that the distances from the light incident surface 21 of the lens 1 to the centers of the corresponding arc surfaces 221 may be the same or different, and may be specifically set according to actual requirements, which is not limited in this embodiment.

It should be noted that, in the present embodiment, one light collecting member 2, the light incident surface 21 corresponding to one arc surface 221, and one light emitting surface 22 can be regarded as a small module, so that the lens 1 is composed of a plurality of modules, and the width of the lens 1 can be determined by the number of the modules, so that the lens 1 has high design flexibility and strong versatility.

In an embodiment of the present invention, the low beam module further includes: a heat sink 6 and a wiring board 7; the plurality of light sources 3 are fixed on the circuit board 7 at intervals, the circuit board 7 is fixed on the light incident surface 21 of the lens 1, and the light incident surface 21 of the lens 1 is fixed on the heat sink 6.

Specifically, as shown in fig. 2, the plurality of light sources 3 are fixed on the circuit board 7 at intervals, the circuit board 7 is fixed on the light incident surface 21 of the lens 1, and after the fixing, one light source 3 corresponds to one light gathering member 2, and the center of the light source 3 is overlapped with the center of the light incident port of the light gathering member 2 as much as possible, so that the light gathering effect of the light gathering member 2 is better, and the light emitted through the light gathering member 2 is more uniform.

Specifically, as shown in fig. 2, a first mounting hole may be formed on the light incident surface 21 of the lens 1, and a positioning hole is formed in the heat sink 6, so that the lens 1 may be connected to the heat sink 6 by passing a fastener through the first mounting hole and the positioning hole, and then the heat sink 6 is connected to a metal plate of the vehicle.

In an embodiment of the present invention, the low beam module further includes: the lens cover 8, the shape of the lens cover 8 is matched with lens 1, the lens cover 8 is covered on lens 1; an accommodating cavity for accommodating the lens 1 is defined by the annular side wall 81 and the light-transmitting wall 82, the light-transmitting wall 82 is arranged at one end of the annular side wall 81 close to the light-emitting surface 22, the other end of the annular side wall 81 is an open end for the lens 1 to penetrate through, and the open end is fixed on the heat sink 6; the light-transmitting wall 82 is made of a light-transmitting material, and the annular side wall 81 is made of a non-light-transmitting material.

Specifically, as shown in fig. 2, in order to protect the safety of the lens 1, the lens 1 is covered with the lens cover 8, the lens cover 8 is shaped like a "cover", the annular sidewall 81 corresponds to a cover wall, the light-transmitting wall 82 corresponds to a cover bottom, and the open end corresponds to a cover opening, that is, the lens cover 8 is not covered with the light-entering surface 21 of the lens 1.

Specifically, the light-transmitting wall 82 is made of a light-transmitting material, the light-transmitting wall 82 is disposed at an end of the annular sidewall 81 close to the light-emitting surface 22 of the light-transmitting mirror, and the annular sidewall 81 is made of a non-light-transmitting material, so that the light emitted from the light source 3 can be emitted from the light-emitting surface 22 of the lens 1, so as to form a predetermined near light shape.

Specifically, the end face of the inlet end of the lens cover 8 may be provided with a second mounting hole, and the second mounting hole, the first stud hole and the positioning hole may be penetrated by a fastener to connect the lens cover 8 and the lens 1 to the heat sink 6.

Particularly, for the convenience of installing lens 1 and lens cover 8 on radiator 6, be equipped with spacing post on radiator 6, lens 1 sets up first spacing hole in the relative position of spacing post, and lens cover 8 sets up the spacing hole of second in the relative position of spacing post, and in actual installation, wear to establish two spacing holes in proper order with spacing post earlier, it is spacing to carry out lens 1 and lens cover 8, then fastening through the fastener.

It should be noted that the fastener can select a screw, and buying two mounting holes and positioning holes like this, it is clear that all are threaded holes matched with the screw, and the fastener also can select the bolt etc. this embodiment may not do the restriction to the specific type of selection of fastener.

Specifically, the height of the lens 1 of the present embodiment is not greater than 15mm, which is smaller than the height of the lens 1 of the existing miniaturized low beam module, and thus the low beam module of the present embodiment is smaller.

Specifically, the light source 3 of the present embodiment is the LED light source 3, because the LED light source 3 has the advantages of low power consumption and long lifetime.

Compared with the prior art, the low beam module has the following advantages:

Specifically, the detailed structure and operation of the low beam module are not described in detail herein.

Specifically, the vehicle includes a vehicle headlamp including a low-beam module, and the detailed structure and operation of the low-beam module are not described herein.

Compared with the prior art, the vehicle has the following advantages:

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A low beam module, characterized in that, the low beam module includes: a lens (1), a plurality of light-gathering members (2) and a plurality of light sources (3);

one light source (3) corresponds to one light gathering piece (2), and one light source (3) is fixed at the light inlet of one light gathering piece (2);

the light gathering pieces (2) are arranged on the light incident surface (21) of the lens (1) and are of an integrated structure with the lens (1), and the light gathering pieces (2) are used for gathering light rays emitted by the light source (3) and projecting the light rays towards the lens (1);

be equipped with recess (4) on the bottom surface of lens (1), the degree of depth of recess (4) is less than the height of lens (1), wherein, the light process that spotlight piece (2) jetted out recess (4) form the light of predetermineeing the distribution, and formation short-distance beam light shape is jetted out in play plain noodles (22) of rethread lens (1).

2. A low beam module according to claim 1, characterized in that the groove (4) comprises, in the width direction of the groove (4), a first groove (41) and a second groove (42) which are connected;

the first groove (41) is arranged on a projection light path of one part of the light gathering piece (2), and the second groove (42) is arranged on a projection light path of the other part of the light gathering piece (2);

the light emitted by the light gathering piece (2) passes through the first groove (41) to form first preset distributed light, passes through the second groove (42) to form second preset distributed light, and the first preset distributed light and the second preset distributed light form the preset distributed light.

3. A low beam module according to claim 2, characterized in that the first groove (41) is formed by a first groove wall (411) and a second groove wall (412) intersecting, the first groove wall (411) being close to the light source (3) and the second groove wall (412) being far from the light source (3), light rays impinging on the first groove wall (411) being totally reflected and emerging from a non-light-emitting surface of the lens (1);

the second groove (42) is formed by a third groove wall (421), a fourth groove wall (422) and a fifth groove wall (423) which are connected in sequence, the third groove wall (421) is close to the light source (3), the fifth groove wall (423) is far away from the light source and is opposite to the third groove wall (421), and the fourth groove wall (422) is positioned between the third groove wall (421) and the fifth groove wall (423);

the light projected to the fourth groove wall (422) is totally reflected and emitted from the non-light-emitting surface of the lens (1), and the light projected to the third groove wall (421) is refracted and emitted from the light-emitting surface (22) of the lens (1).

4. A low beam module according to claim 3, wherein each light focusing member (2) has a first conical shape (23); alternatively, the first and second electrodes may be,

the light gathering part (2) corresponding to the first groove (41) is in the first conical shape (23), and the light gathering part (2) corresponding to the second groove (42) is in the second conical shape (24);

the shape of the axial cross section of the first cone (23) is a first isosceles trapezoid, and the lower bottom edge of the first isosceles trapezoid is arranged on the light incident surface (21) of the lens (1);

in the height direction of the lens (1), the second taper (24) comprises a first half taper (241) and a second half taper (242) which are connected, in the axial direction, the first half taper (241) is half of a third taper and is close to the bottom surface of the lens (1), and the second half taper (242) is half of a fourth taper and is far away from the bottom surface of the lens (1);

the shape of the axial cross section of the third cone is a second isosceles trapezoid, the shape of the axial cross section of the fourth cone is a third isosceles trapezoid, the length of the upper bottom edge of the second isosceles trapezoid is larger than that of the upper bottom edge of the third isosceles trapezoid, the length of the lower bottom edge of the second isosceles trapezoid is smaller than that of the lower bottom edge of the third isosceles trapezoid, and the lower bottom edge of the second isosceles trapezoid and the lower bottom edge of the third isosceles trapezoid are arranged on the light incident surface (21) of the lens (1).

5. A low beam module according to claim 3, wherein a recess (5) is provided at the intersection of the first slot wall (411) and the second slot wall (412), said recess (5) being adapted to attenuate the intensity of the light emitted by the light source (3).

6. A low beam module according to claim 1, wherein the light incident surface (21) of the lens (1) is a plane, the light emitting surface (22) of the lens (1) is formed by a plurality of arc surfaces (221) connected in sequence, one arc surface (221) corresponding to one light collecting member (2).

7. A low beam module according to claim 1, characterized in that the low beam module further comprises: a heat sink (6) and a circuit board (7);

a plurality of light source (3) interval is fixed in on circuit board (7), circuit board (7) are fixed in on going into plain noodles (21) of lens (1), the income plain noodles (21) of lens (1) are fixed in on radiator (6).

8. A low beam module according to claim 7, characterized in that the low beam module further comprises: the shape of the lens cover (8) is matched with that of the lens (1), and the lens cover (8) is covered on the lens (1);

the lens cover (8) comprises an annular side wall (81) and a light-transmitting wall (82), an accommodating cavity for accommodating the lens (1) is formed by the annular side wall (81) and the light-transmitting wall (82), the light-transmitting wall (82) is arranged at one end, close to the light-emitting surface (22), of the annular side wall (81), the other end of the annular side wall (81) is an opening end for the lens (1) to penetrate through, and the opening end is fixed on the radiator (6);

the material of light-transmitting wall (82) is light-transmitting material, and the material of annular lateral wall (81) is non-light-transmitting material.

9. A vehicular headlamp characterized by comprising the low beam module according to any one of claims 1 to 8.

10. A vehicle characterized in that the vehicle includes the headlamp of claim 9.