CN210568151U

CN210568151U - Automobile lamp

Info

Publication number: CN210568151U
Application number: CN201921365602.1U
Authority: CN
Inventors: 周星龙; 谷万鹏; 胥利武
Original assignee: Mind Electronics Appliance Co Ltd
Current assignee: Mind Electronics Appliance Co Ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-05-19
Anticipated expiration: 2029-08-21

Abstract

The utility model provides an automobile lamp, which comprises a shell with a cavity inside, wherein the top of the cavity is open, and the shell is provided with an installation part which is arranged on an external component and used for forming the automobile lamp; the automobile lamp further comprises a PCB board with LED particles, wherein the PCB board is fixedly arranged at the bottom in the cavity, an inner lens is clamped in the cavity to process the light emitting lines of the LED particles in a collimation mode, an outer lens is arranged on the shell in a covering mode at an opening of the cavity, and the outer lens forms diffusion output of light rays after the inner lens is processed. The utility model discloses a car light is through the setting of the PCB board that has the LED granule to and by the produced ray of inner lens collimation LED granule, handle back light diffusion output with inner lens by outer lens, with this optics scheme that can realize LED granule cooperation lens, and can compare in current bulb formula light source cooperation optical element's structural style has better application effect.

Description

Automobile lamp

Technical Field

The utility model relates to an automobile parts technical field, in particular to car light.

Background

With the increasing development of the automobile industry, the requirements on automobile lamps are higher and higher, taking rear fog lamps on automobiles as an example, most of the rear fog lamps of automobiles are in a structural form that an optical element is matched with a bulb type light source, bulbs have an optical scheme of forward projection or side projection, the structural form that the bulb type light source is matched with the optical element is more and more universal and lacks aesthetic feeling, and the aesthetic requirement of people is difficult to achieve.

Therefore, lamp structures which adopt the LED particles as light sources and are matched with the optical lenses become more and more new choices of various automobile manufacturers, the size of the optical element can be greatly changed from an optical angle by the optical scheme of the LED particles matched with the lenses, and the requirement on the degree of freedom in the appearance and the shape of the automobile lamp can be realized. However, when the optical scheme makes the unidirectional dimension smaller and the appearance required by the lamp shape smaller, the optical scheme of the LED particles in combination with the lens has a greater difficulty in the structural design.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an automobile lamp to can adopt the optics scheme of LED granule cooperation lens, and can improve the degree of freedom on the lamps and lanterns molding, reduce the structural design degree of difficulty.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the automobile lamp comprises a shell with a cavity formed inside, wherein the top of the cavity is open, and a mounting part for mounting the automobile lamp on an external component is arranged on the shell; the car light still include in the fixed PCB board that has the LED granule that sets up in bottom in the cavity, the joint in handle with the collimation in the cavity the inner lens of the luminous line that the LED granule sent, and in the outer lens on the casing is established to the uncovered department cover of cavity, just outer lens constitute right the diffusion output of light after the inner lens was handled.

Furthermore, the mounting portion includes mounting seats which are respectively configured on two opposite sides of the housing and are arranged in an overhanging manner, and mounting holes are formed in the mounting seats.

Further, the PCB board is fixed to the housing by screws.

Furthermore, a plurality of limiting ribs which can be respectively abutted with the periphery of the fixed PCB are constructed at the bottom of the cavity.

Furthermore, a plurality of clamping jaws are respectively arranged on two opposite sides of the inner lens, clamping grooves are formed in the inner wall of the cavity corresponding to the clamping jaws, and the inner lens is clamped in the cavity by clamping the clamping jaws in the clamping grooves corresponding to the clamping jaws.

Furthermore, the light incident surface and the light emergent surface of the outer lens are both planes, and the light incident surface of the outer lens is provided with light distribution patterns in the shape of corn grains.

Furthermore, the light-emitting surface of the outer lens is convex towards one side of the inner lens, and the light-emitting surface of the outer lens is concave towards one side of the inner lens.

Furthermore, an inner clamping ring is formed on the shell and around the opening at the top of the cavity, an outer clamping ring is formed on the end face, facing the shell, of the outer lens, and the outer lens is covered on the shell through the interference fit of the outer clamping ring on the inner clamping ring.

Furthermore, the LED particles are arranged on the PCB plate at intervals in a linear arrangement mode, and the inner lens is provided with a plurality of light distribution parts which correspond to the LED particles one by one.

Furthermore, the light incident surface of each light distribution part is a parabolic curved surface, the light emergent surface of each light distribution part is a plane, and a concave step structure is constructed on the light emergent surface of each light distribution part, and the step structure is provided with a plurality of concave-square step surfaces which are nested and are concave layer by layer.

Compared with the prior art, the utility model discloses following advantage has:

the utility model discloses a car light is through the setting of the PCB board that has the LED granule to and by the produced ray of inner lens collimation LED granule, handle back light diffusion output with inner lens by outer lens, with this optics scheme that can realize LED granule cooperation lens, and can compare in current bulb formula light source cooperation optical element's structural style has better application effect.

And simultaneously, the utility model discloses a make outer lens establish on the casing in the uncovered department cover of cavity, can realize exposing the structural design that size and optical design size are the same, can improve the degree of freedom in the molding from this to a great extent, and do benefit to the structural design who goes on when one-way size is less, can reduce the structural design degree of difficulty.

Furthermore, the utility model discloses an inner lens joint setting in the cavity also can be convenient for the assembly of car light structure.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural diagram of an automotive lamp according to an embodiment of the present invention;

3 FIG. 3 2 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 31 3; 3

Fig. 3 is an exploded view of the structure of the vehicle lamp according to the embodiment of the present invention;

fig. 4 is a schematic view illustrating a PCB disposed in a housing according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken at D-D in FIG. 4;

fig. 6 is a schematic view of the arrangement of the inner lens in the housing according to the embodiment of the present invention;

FIG. 7 is a cross-sectional view taken at B-B of FIG. 6;

FIG. 8 is an enlarged view of a portion of FIG. 6 at C;

fig. 9 is a schematic view of an optical path of the vehicle lamp according to the embodiment of the present invention;

description of reference numerals:

1-shell, 101-mounting seat, 102-mounting hole, 103-cavity, 104-inner collar, 105-terminal via hole, 106-clamping groove and 107-limiting rib;

2-outer lens, 201-outer collar, 202-light incident surface, 2021-light distribution pattern, 203-light emergent surface;

3-inner lens, 301-claw, 302-light incident surface, 303-light emergent surface, 3031-step structure;

4-PCB board, 401-terminal;

5-LED particles;

6-screw.

Detailed Description

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

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

The present embodiment relates to an automotive lamp, which may be, for example, a rear fog lamp of an automobile, or may be, in addition to the rear fog lamp, another lamp of an automobile that is suitably configured as described below.

As shown in fig. 1 and fig. 2 combined with fig. 3, the vehicle lamp of the present embodiment mainly includes a housing 1 having a cavity 103 formed therein, wherein the top of the cavity 103 is open, and the housing 1 is also provided with a mounting portion for mounting the vehicle lamp on an external member. In addition, the automotive lamp of the embodiment further includes a PCB 4 fixedly disposed at the bottom of the cavity 103 and having LED particles 5, an inner lens 3 snap-fitted in the cavity 103 for collimating light emitted from the LED particles 5, and an outer lens 2 covering the opening of the cavity 103 and disposed at the top of the housing 1, wherein the outer lens 2 is specifically configured to diffuse and output light processed by the inner lens 3, so as to realize the lighting effect of the automotive lamp.

In the present embodiment, it should be noted that, regardless of the housing 1 serving as a bearing base for the PCB 4 and the lens structures, or the light generating and light processing components such as the PCB 4, the inner lens 3 and the outer lens 2, they are designed to be in a strip structure. The shape of the strip is consistent with the requirement of the general appearance of the automobile rear fog lamp, so that the automobile rear fog lamp has better appearance aesthetic feeling. However, when the automotive lamp of the present embodiment is applied to other automotive lamps, the shapes of the housing 1 and other components may be modified according to actual design requirements, and the application is not limited thereto.

As a possible implementation form, the above-mentioned mounting portion provided on the housing 1 of the present embodiment specifically includes mounting seats 101 respectively configured on two opposite sides of the housing 1, the mounting seats 101 on both sides are in an overhanging arrangement, and a mounting hole 102 is also provided on each mounting seat 101. When the vehicle lamp is mounted on an exterior member (generally, a vehicle body), the housing 1, that is, the entire vehicle lamp can be mounted on the vehicle by screws inserted into the mounting holes 102. Of course, in addition to the above fitting manner of the mounting seat 101 and the mounting hole 102, the vehicle lamp may be mounted by a conventional clamping, interference press-fitting or bonding method.

As a preferred embodiment, shown in fig. 4 in combination with fig. 5, the PCB board 4 is fixed to the housing 1 by screws 6, thereby realizing the arrangement of the bottom of the cavity 103 in the housing 1. For example, the screws 6 may be respectively disposed at two ends of the PCB 4, and a connecting line between the screws 6 at the two ends is arranged along a diagonal line of the PCB 4, so as to ensure stability of the PCB 4 after being fixed. In addition, in the car light structure, there is a high requirement for the relative position accuracy between the light source, that is, the LED particles 5 and the inner lens 3, so in this embodiment, a plurality of limiting ribs 107 capable of abutting against the periphery of the fixed PCB 4 are also configured at the bottom of the cavity 103.

Each of the limiting ribs 107 may be formed integrally with the housing 1 when the housing 1 is manufactured by injection molding, and generally two limiting ribs are disposed at intervals on each side of the PCB 4. Instead of limiting the position of the PCB 4, as a preferred embodiment, the limiting ribs 107 can also be provided as shown in fig. 5, which can also support the PCB 4, thereby achieving the complete positioning of the PCB 4 at the bottom of the cavity 103. It should be noted that, similarly to the limiting ribs 107, the rear connecting column structure is also formed at the bottom of the cavity 103 corresponding to the screws 6. The connecting column structure is integrally formed with the shell 1, and each connecting column structure is provided with a threaded hole, so that the connecting column structure can be connected with the screw 6 to fix the PCB 4.

In this embodiment, in addition to the screw 6, a riveting column is disposed on the housing 1, so that the PCB 4 can be riveted to the bottom of the cavity 103. As shown in fig. 6 and fig. 7, for the clamping between the inner lens 3 and the inner wall of the cavity 103, in a specific structure, in this embodiment, a plurality of claws 301 are respectively disposed on two opposite sides of the inner lens 3, and corresponding to each claw 301, a clamping groove 106 is disposed on the inner wall of the cavity 103. The engagement of the inner lens 3 in the cavity 103 is achieved by the engagement of the claws 301 in the corresponding recesses 106, which, of course, also simultaneously achieves a positioning of the position of the inner lens 3 in the housing 1.

Still referring to fig. 3 or fig. 4, the LED particles 5 in the present embodiment are disposed on the PCB 4 at intervals and in a linear arrangement, and the inner lens 3 also has a plurality of light distribution portions corresponding to the LED particles 5 one by one, matching with the arrangement of the LED particles 5. The light incident surface 302 of each light distribution part is a parabolic curved surface, the light emitting surface 303 of each light distribution part is a plane, and a concave step structure 3031 is formed on the light emitting surface 303 of each light distribution part. The step structure 3031 can be specifically structured as shown in fig. 7 in combination with fig. 8, and has a plurality of nested and layer-by-layer concave circular step surfaces inside, in this embodiment, the top light emitting surface 303 is added, and the circular step surfaces have three layers in total.

In this embodiment, as also shown in fig. 2, the light incident surface 202 and the light emitting surface 203 of the outer lens 2 are both configured as a plane, and a corn-shaped light distribution pattern 2021 is also disposed on the light incident surface 202 of the outer lens 2, so that the light collimated by the inner lens 3 is diffused by the light distribution pattern 2021, and the light emitted by the outer lens 2 is more uniform. In addition, the light incident surface 202 of the outer lens 2 of the present embodiment also has a convex shape toward the inner lens 3, and the light emitting surface 203 of the outer lens 2 is also concave toward the inner lens 3. Through the recess of the light incident surface 202 and the light emitting surface 203 toward the inner side of the cavity 103, the outer end surface of the outer lens 2, that is, the appearance surface of the whole automobile lamp, can be more beautiful, and the whole aesthetic feeling of the automobile lamp can be improved.

As for the arrangement of the outer lens 2 on the top of the housing 1, as a feasible implementation manner, in this embodiment, an inner collar 104 is formed at the top opening of the ring cavity 103 on the housing 1, and an outer collar 201 is also formed on the end surface of the outer lens 2 facing the housing 1, so that the outer lens 2 can be covered on the top of the housing 1 by the interference fit of the outer collar 201 on the inner collar 104. Of course, instead of using an interference fit of the inner and outer collars, the outer lens 2 may be fixedly connected to the housing 1 by means of gluing or clipping.

The car light of this embodiment is when the assembly, carries out the fixed of PCB board 4 in cavity 103 bottom earlier, and each spacing muscle 107 can effectively improve its assembly precision, and during the fixed terminal via hole 105 on the casing 1 should be worn to locate by its binding post 401 of PCB board 4 to be arranged in the electricity between car light and the control power. The inner lens 3 and the outer lens 2 are sequentially mounted after the PCB 4 is fixed, and the final vehicle lamp assembly structure is shown in figure 1.

When the automotive lamp of the present embodiment is used, the light emitted from the LED particles 5 passes through the light incident surface 302 of the inner lens 3, and then is totally reflected on the outer surface thereof, and the light passes through the inner lens 3 and then becomes substantially parallel to each other. Then, when the light passes through the light distribution pattern 2021 on the outer lens 2, the light pattern is spread, so that the light can be uniformly emitted, and the effect of meeting relevant regulations is achieved. The specific light path diagram of the vehicle lamp in use can be as shown in fig. 9, and fig. 9 is an example of processing of only one of the light rays of the LED particles 5, the processing of the light rays of the other LED particles 5 is the same as that of the light rays of the other LED particles 5, and the light rays emitted by each LED particle 5 are processed by the inner lens 3 and the outer lens 2 and then emitted out, so that the emitted light rays of the whole vehicle lamp are obtained.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automobile lamp, characterized in that: the automobile lamp comprises a shell (1) with a cavity (103) formed inside, the top of the cavity (103) is open, and a mounting part for mounting the automobile lamp on an external component is arranged on the shell (1); the car light still include in the fixed PCB board (4) that has LED granule (5) that sets up in bottom in cavity (103), the joint in handle with the collimation in cavity (103) interior lens (3) of LED granule (5) luminous line, and in the uncovered department cover of cavity (103) is established outer lens (2) on the casing, just outer lens (2) constitute right the diffusion output of light after interior lens (3) are handled.

2. The vehicle lamp according to claim 1, wherein: the mounting part comprises mounting seats (101) which are respectively constructed on two opposite sides of the shell (1) and arranged in an extending mode, and mounting holes (102) are formed in the mounting seats (101).

3. The vehicle lamp according to claim 1, wherein: the PCB (4) is fixed on the shell (1) through a screw (6).

4. The vehicle lamp according to claim 1, wherein: and a plurality of limiting ribs (107) which can be respectively abutted with the periphery of the fixed PCB (4) are constructed at the bottom of the cavity (103).

5. The vehicle lamp according to claim 1, wherein: a plurality of clamping jaws (301) are respectively arranged on two opposite sides of the inner lens (3), corresponding to the clamping jaws (301), clamping grooves (106) are arranged on the inner wall of the cavity (103), and the inner lens (3) is clamped in the cavity (103) by clamping the clamping jaws (301) in the clamping grooves (106) corresponding to the clamping jaws.

6. The vehicle lamp according to claim 1, wherein: the light incident surface (202) and the light emergent surface (203) of the outer lens (2) are both planes, and the light incident surface (202) of the outer lens (2) is provided with light distribution patterns (2021) in a corn grain shape.

7. The vehicle lamp according to claim 6, wherein: the light incident surface (202) of the outer lens (2) is provided with a convex surface facing one side of the inner lens (3), and the light emergent surface (203) of the outer lens (2) is arranged in a concave manner facing one side of the inner lens (3).

8. The vehicle lamp according to claim 1, wherein: on casing (1), encircle the top of cavity (103) is uncovered and is formed with interior rand (104), in outer lens (2) just to be formed with outer rand (201) on the terminal surface of casing (1), outer lens (2) by outer rand (201) in interference suit on interior rand (104) and cover establish on casing (1).

9. The vehicle lamp according to any one of claims 1 to 8, characterized in that: the LED particles (5) are arranged on the PCB (4) at intervals in a linear arrangement mode, and the inner lens (3) is provided with a plurality of light distribution parts which correspond to the LED particles (5) one by one.

10. The vehicle lamp according to claim 9, wherein: the light incident surface (302) of each light distribution part is a parabolic curved surface, the light emergent surface (303) of each light distribution part is a plane, an inwards concave step structure (3031) is constructed on the light emergent surface (303) of each light distribution part, and the step structure (3031) is provided with a plurality of nested and layer-by-layer downwards concave circular step surfaces.