CN219163217U

CN219163217U - Integrated light band light guide structure

Info

Publication number: CN219163217U
Application number: CN202320082263.6U
Authority: CN
Inventors: 林庆锡; 李旭雷; 付显波; 吴四海; 张代金; 王云涛
Original assignee: Zhejiang Changjiang Automobile Electronics Co ltd
Current assignee: Zhejiang Changjiang Automobile Electronics Co ltd
Priority date: 2023-01-12
Filing date: 2023-01-12
Publication date: 2023-06-09
Anticipated expiration: 2033-01-12

Abstract

The utility model relates to an integrated light belt light guide structure, which comprises a PCB and a light guide body bracket positioned on the PCB, wherein a light guide body is erected on the light guide body bracket, and an LED lamp bead is arranged on the PCB, and the integrated light belt light guide structure is characterized in that: the light guide body comprises a light guide plate and two light guide columns positioned on the light guide plate, wherein the light guide columns correspond to the LED lamp beads, light is conducted onto the light guide plate from the PCB, a pit structure for diffusing light is arranged at the joint of the light guide columns and the light guide plate, a light guide cavity is formed in the light guide plate, and the influence of two light beams conducted by the light guide columns is cut off. By adopting the technical scheme, the utility model provides the integrated light band light guide structure which can guide light to the light band on the whole switch only by two LED lamp beads.

Description

Integrated light band light guide structure

Technical Field

The utility model relates to an automobile accessory, in particular to an integrated light band light guide structure.

Background

The existing automobile generally controls various functions of the automobile through physical keys or touch, the touch mode is more foresight and is a great trend of development in the future, but in actual use, the touch mode is not stable through physical keys, the operability, the sensitivity and the like are poor, and particularly, excessive distraction of a driver is caused in the driving process, so that the safety problem is caused. Therefore, in the existing market, the physical key is still the most mainstream way to control the functions of the automobile.

In order to enable a driver to clearly operate each key when driving at night, an automobile manufacturer can set a light source behind each automobile key, and the light patterns of each key are different through light transmission areas with different patterns on the keys, so that the keys are convenient to distinguish. In the market, the light emission of automobile keys is mainly generated by the irradiation of an LED lamp arranged in a key structure. However, since the LED light source is a point light source, the backlight is not bright, uneven or ghosting and other defects often occur when the LED light source irradiates the key, so that only a single LED lamp is directly irradiated on the key cap, the backlight of the key cap cannot be uniform and bright, and the aesthetic feeling is not enough.

Disclosure of Invention

The purpose of the utility model is that: in order to overcome the defects of the prior art, the utility model provides an integrated light band light guide structure which can guide light to the light band on the whole switch only by two LED lamp beads.

The technical scheme of the utility model is as follows: the utility model provides an integral type light band light guide structure, includes the PCB board and is located the light guide body support on the PCB board, the light guide body has been erect on the light guide body support, be equipped with LED lamp pearl on the PCB board, the light guide body includes the light guide plate and is located two leaded light posts on the light guide plate, the leaded light post is corresponding with LED lamp pearl, on with light conduction to the light guide plate on the PCB board, the junction of leaded light post and light guide plate is equipped with the pit structure that is used for astigmatic, the light guide cavity has been seted up on the light guide plate, cuts off two the mutual influence of two bundles of light that the leaded light post conducted.

By adopting the technical scheme, the light emitted by the LED lamp on the PCB is guided to the light guide plate through the light guide column, and the light guided by the light guide column is more uniformly emitted to the whole light guide plate through the pit structure and the light guide cavity on the light guide plate, so that the LED lamp is simple in structure and convenient to use.

The utility model is further provided with: the light guide cavity is diamond-shaped, and the folded corner of the light guide cavity is provided with an arc chamfer.

By adopting the further arrangement, the diamond-shaped light guide cavity can cut off the mutual influence of two side lights of the light guide cavity, and the diamond-shaped edge can reflect light to the edge of the light guide body, so that the brightness of the edge of the middle part is increased, and the brightness of each part is basically consistent. The bent angle of the diamond-shaped light guide cavity adopts arc transition, so that the light loss is reduced, and the overall brightness is improved.

Still further, the present utility model provides: the light guide body is formed by double-shot injection molding of PC transparent materials and PC mist transparent materials.

By adopting the further arrangement, the light guide body is manufactured in a double-color injection molding mode, the PC transparent material with the first color has good light source conductivity, and the PC vaporific transparent material with the second color can increase the uniformity of light.

Still further, the present utility model is provided with: the surface of the light guide body is provided with a white primer, and the outer surface of the white primer is plated with a silver primer in vacuum.

By adopting the further arrangement, the white primer is used first and then silver is used for vacuum plating, so that the white color increases the light path diffusion and the light uniformity of the light guide plate.

Still further, the present utility model is provided with: the surface of the light guide body is locally provided with light leakage prevention.

By adopting the further arrangement, the periphery of the light guide body is locally subjected to surface treatment such as paint spraying, electroplating, vacuum plating and the like, so that the reflection of light is further enhanced, and the light guide effect is more uniform. Meanwhile, local light leakage can be prevented.

Drawings

FIG. 1 is a schematic cross-sectional view of the overall structure of the present utility model;

fig. 2 is a schematic diagram of an explosion structure of a PCB board and a light guide body according to the present utility model;

fig. 3 is a schematic structural view of the light guide body of the present utility model.

Description of the embodiments

The technical solutions of the present embodiment will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indications (such as up, down, front, and rear … …) in the description of the present utility model are merely for explaining the relative positional relationship, movement, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.

As shown in fig. 1-3, the integrated light band light guide structure of the present utility model comprises a PCB board 1 and a light guide body support 2 located on the PCB board 1, wherein a light guide body 3 is erected on the light guide body support 2, in this way, the installation and use of the light guide body 3 are more stable, two LED lamp beads 11 are arranged on the PCB board 1 at intervals, the light guide body 3 comprises a light guide plate 31 and two light guide columns 32 located on the light guide plate 31, the two light guide columns 32 respectively correspond to the two LED lamp beads 11, light is conducted from the PCB board 1 to the surface of the light guide plate 31, a pit structure 33 for diffusing light is arranged at the joint of the light guide columns 32 and the light guide plate 31, the light guided by the light guide columns 32 can be dispersed around through the pit structure 33, so that the surface of the light guide body 31 is prevented from being locally over-bright, the light guide cavities 311 are formed on the light guide plate 31, the influence of the two light beams conducted by the light guide columns 32 on each other is avoided, and the light guide columns 32 can be matched with the light guide columns 31 through the pit structure 33, so that the light band effect can be obtained; the light guiding cavity 311 is diamond-shaped, and the edge of the light guiding plate 31 is reflected by the diamond edge, so that the brightness of the edge of the light guiding cavity 311 is increased, the brightness of each part of the surface of the light guiding body 31 is basically kept consistent, and the corner of the light guiding cavity 311 is provided with an arc chamfer, so that the loss of light can be reduced, and the brightness of the whole surface of the light guiding plate 31 is improved; the light guide body 3 is formed by double-color injection molding, wherein the first color is PC transparent material, so that the light guide body 3 has good light source conductivity, and the second color is PC mist transparent material, so that the uniformity of light transmission is improved; the surface of the light guide body 3 is provided with a white primer, and the outer surface of the white primer is vacuum plated with a silver primer, so that the diffusion of a light path and the uniformity of light scattering are enhanced; the surface of the light guide body 3 is treated by means of local paint spraying, electroplating and the like, so that the reflection and conduction capacity of the light guide column 32 for guiding the light from the LED lamp beads 11 is further enhanced, a more uniform light guide effect is realized, and meanwhile, the effect of local light leakage prevention is also achieved.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to base the implementation on the basis of those skilled in the art, and when the technical solutions are contradictory or cannot be implemented, it should be considered that the combination of the technical solutions does not exist, and is not within the scope of protection claimed by the present utility model.

Claims

1. The utility model provides an integral type light area light guide structure, includes the PCB board and is located the light guide body support on the PCB board, the light guide body has been erect on the light guide body support, be equipped with LED lamp pearl on the PCB board, its characterized in that: the light guide body comprises a light guide plate and two light guide columns positioned on the light guide plate, wherein the light guide columns correspond to the LED lamp beads, light is conducted onto the light guide plate from the PCB, a pit structure for diffusing light is arranged at the joint of the light guide columns and the light guide plate, a light guide cavity is formed in the light guide plate, and the influence of two light beams conducted by the light guide columns is cut off.

2. The integrated light guide structure of claim 1, wherein: the light guide cavity is diamond-shaped, and the folded corner of the light guide cavity is provided with an arc chamfer.

3. An integrated light guide structure according to claim 2, wherein: the light guide body is formed by double-shot injection molding of PC transparent materials and PC mist transparent materials.

4. An integrated light guide structure according to claim 1, 2 or 3, wherein: the surface of the light guide body is provided with a white primer, and the outer surface of the white primer is plated with a silver primer in vacuum.

5. The integrated light guide structure of claim 4, wherein: the surface of the light guide body is locally provided with light leakage prevention.