CN219706607U

CN219706607U - Light channeling prevention structure of piano black panel

Info

Publication number: CN219706607U
Application number: CN202320826174.8U
Authority: CN
Inventors: 焦青亮; 张立新; 叶友体; 蔡海鹏; 林小觉; 李志明
Original assignee: Zhejiang Changjiang Automobile Electronics Co ltd
Current assignee: Zhejiang Changjiang Automobile Electronics Co ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-09-19
Anticipated expiration: 2033-04-04

Abstract

The utility model discloses a piano black panel light channeling prevention structure, which comprises a base, a PCB assembly, an outer shell, an inner shell, a light guide body and a LENS assembly, wherein the base and the LENS assembly are respectively arranged at two ends of the outer shell, the inner shell and the PCB assembly are arranged in the outer shell from top to bottom, and the light guide body is arranged on the inner shell; the LED module is characterized by further comprising a diaphragm arranged at one end of the light guide body, which is close to the LENS assembly, multicolor printing ink is arranged on the diaphragm, a plurality of white LEDs are arranged on the PCB assembly, the LENS assembly comprises a gray base material and a protective film arranged on the outer surface of the gray base material, and light-transmitting characters are arranged on the protective film at positions corresponding to the positions above the diaphragm. The utility model adopts the white LEDs with the same color to realize three backlights of red, blue and white, and when no backlight exists, the high-end integrated black effect is displayed; when the backlight is adopted, the characters are clear and visible, the colors are vivid, the different colors of characters have no cross light, and the quality performance of the product is greatly improved.

Description

Light channeling prevention structure of piano black panel

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a piano black panel light channeling prevention structure.

Background

In the air conditioner control panel, if adjacent and nearer red, blue and white backlights appear, three light guides 5 of red LEDs, blue LEDs and white LEDs 9+ are generally adopted to realize illumination; to meet the integral black effect, the LENS surface film 7 needs to be printed with a layer of red, blue and white ink, then printed with a layer of gray ink, as shown in fig. 1, the inner layer of the film 7 surface is a layer of red ink 13, white ink 14 and blue ink 15 which are arranged side by side, and the outer layer is gray ink 30. However, in the existing structure, since the adjacent backlights cannot be completely separated, the problem of light channeling is difficult to solve, and in fig. 1, the areas between the red ink 13 and the white ink 14 and between the blue ink 15 and the white ink 14 are light channeling areas 31; the surface of the product is black and the character display effect is poor: if the gray ink 30 is thick, the backlit character is not visible in the daytime; if the gray ink is thin 30, the clear view of the characters in the daytime environment is not satisfied.

Disclosure of Invention

The utility model aims to provide a light channeling prevention structure of a piano black panel, which adopts white LEDs with the same color to realize three kinds of backlight of red, blue and white, and when no backlight exists, the high-end integrated black effect is displayed; when the backlight is adopted, the characters are clear and visible, the colors are vivid, the different colors of characters have no cross light, and the quality performance of the product is greatly improved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a piano black panel prevents scurrying light structure, includes base, PCB assembly, shell, inner shell, leaded light body and LENS assembly, base and LENS assembly set up respectively at the shell both ends, inner shell and PCB assembly are installed in the shell from top to bottom, leaded light body installs on the inner shell; the LED module is characterized by further comprising a diaphragm arranged at one end of the light guide body, which is close to the LENS assembly, multicolor printing ink is arranged on the diaphragm, a plurality of white LEDs which are respectively arranged below the multicolor printing ink on the diaphragm are arranged on the PCB assembly, the LENS assembly comprises a gray base material and a protective film arranged on the outer surface of the gray base material, and light-transmitting characters are arranged on the protective film at positions corresponding to the positions above the diaphragm.

The utility model further provides that the multicolor ink on the membrane comprises red ink, white ink and blue ink which are arranged side by side, and the number of the white LED lamps is 3.

The utility model further provides that the thickness of the membrane is 0.15-0.25 mm.

The utility model further provides that the back surface of the membrane is adhered to the light guide body through transparent back glue.

The utility model is further arranged that the light guide body comprises an upper light guide part and three lower light guide parts arranged at the lower ends of the upper light guide part, three insertion holes are respectively arranged on the inner shell at positions corresponding to the positions above the red ink, the white ink and the blue ink of the diaphragm, and the three lower light guide parts are respectively inserted into the corresponding insertion holes.

The utility model is further characterized in that a transverse limiting clamping groove is formed in the inner shell, a transverse limiting rib matched with the transverse limiting clamping groove is arranged on the light guide body, a longitudinal limiting clamping groove is formed in the side portion of the inner shell, and a longitudinal limiting protrusion matched with the longitudinal limiting clamping groove is arranged on the light guide body.

The utility model is further characterized in that the outer shell is provided with a mounting cavity for accommodating the inner shell, a T-shaped limiting groove is formed in the inner wall of the mounting cavity from top to bottom, and a T-shaped limiting protrusion matched with the T-shaped limiting groove is arranged on the outer side of the inner shell.

The utility model is further characterized in that a guide groove is further formed in the inner wall of the installation cavity from top to bottom, and a guide protrusion matched with the guide groove is arranged on the outer side of the inner shell.

The utility model further provides that the PCB assembly and the base are mounted on the shell through the same set of screws, a plurality of conical buckles are arranged on the shell, and a plurality of clamping interfaces matched with the conical buckles are arranged on the LENS assembly.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, a red LED, a white LED and a blue LED in the prior art are replaced by three white LEDs, a gray substrate is arranged on the inner surface of a diaphragm, and when the LED is in operation, the white LEDs diffuse light through a light guide body, then the light passes through a diaphragm printed with red ink, white ink and blue ink, at the moment, a white backlight is divided into three color areas by the three-color diaphragm, and finally the light passes through LENS with a light-transmitting character gray substrate. Namely, the utility model skillfully merges the gray LENS and the color membrane, and displays an integral black effect when no backlight exists; the thickness of the membrane is generally 0.15-0.25 mm, and optimally 0.2mm, so that no light channeling exists among the colors, and the quality performance of the product is greatly improved.

2. The membrane material, the printing ink, the printing process and the like are mature materials and production processes, can be typeset and put into mass production, and have high production efficiency.

3. The back of the membrane is selected from transparent back adhesive, and the membrane is bonded with no bubbles, so that the quality is stable and reliable.

Drawings

FIG. 1 is a schematic diagram of a conventional control panel light guide;

FIG. 2 is a schematic diagram of the light guide of the control panel of the present utility model;

FIG. 3 is a perspective view of the entire present utility model;

FIG. 4 is an exploded view of the present utility model as a whole;

FIG. 5 is a schematic view of a light guide structure according to the present utility model;

FIG. 6 is a schematic view of a first view of the inner housing of the present utility model;

FIG. 7 is a schematic view of a second view of the inner housing of the present utility model;

fig. 8 is a schematic structural view of the housing of the present utility model.

In the figure: 1. a base; 2. a PCB assembly; 3. a housing; 4. an inner case; 5. a light guide; 6. a LENS assembly; 7. a membrane; 8. multicolor ink; 9. a white LED; 10. a grey substrate; 11. a protective film; 12. a light-transmitting character; 13. red ink; 14. white ink; 15. blue ink; 16. an upper light guide part; 17. a lower light guide part; 18. a jack; 19. a transverse limit clamping groove; 20. transverse limit ribs; 21. a longitudinal limit clamping groove; 22. longitudinal limit protrusions; 23. a mounting cavity; 24. t-shaped limit grooves; 25. t-shaped limit protrusions; 26. a guide groove; 27. a guide protrusion; 28. conical buckle; 29. a card interface; 30. gray ink; 31. a channeling light zone; 32. a red LED; 33. a blue LED.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described 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.

Examples: the piano black panel light channeling prevention structure comprises a base 1, a PCB assembly 2, an outer shell 3, an inner shell 4, a light guide body 5 and a LENS assembly 6, wherein the base 1 and the LENS assembly 6 are respectively arranged at two ends of the outer shell 3, the inner shell 4 and the PCB assembly 2 are arranged in the outer shell 3 from top to bottom, and the light guide body 5 is arranged on the inner shell 4; still including setting up the diaphragm 7 that is close to LENS assembly 6 one end at light guide body 5, be equipped with polychromatic printing ink 8 on the diaphragm 7, be equipped with the white LED9 of a plurality of polychromatic printing ink 8 below that are located on the diaphragm 7 respectively on the PCB assembly 2, LENS assembly 6 includes grey substrate 10 and sets up in the protection film 11 of grey substrate 10 surface, and protection film 11 is black, correspond on the protection film 11 the position of diaphragm 7 top is equipped with printing opacity character 12.

Wherein, the multicolor ink 8 on the membrane 7 comprises red ink 13, white ink 14 and blue ink 15 which are arranged side by side, and the number of the white LED9 lamps is 3.

Wherein the thickness of the membrane 7 is 0.15-0.25 mm, and most preferably 0.2mm.

The back of the membrane 7 is adhered to the light guide body 5 through transparent back glue, and the membrane is adhered to the light guide body without bubbles, so that the quality is stable and reliable.

As shown in fig. 5 and fig. 6, the light guide body 5 includes an upper light guide portion 16 and three lower light guide portions 17 disposed at the lower end of the upper light guide portion 16, the upper light guide portion 16 and the three lower light guide portions 17 are in an integral structure, three insertion holes 18 are respectively disposed on the inner shell 4 corresponding to positions above the red ink 13, the white ink 14 and the blue ink 15 of the membrane 7, and the three lower light guide portions 17 are respectively inserted into the corresponding insertion holes 18.

As shown in fig. 5 and fig. 6, a transverse limiting slot 19 is provided in the inner housing 4, a transverse limiting rib 20 matched with the transverse limiting slot 19 is provided on the light guide body 5, a longitudinal limiting slot 21 is provided on the side portion of the inner housing 4, and a longitudinal limiting protrusion 22 matched with the longitudinal limiting slot 21 is provided on the light guide body 5, so that positioning and mounting of the inner housing 4 are realized, and the mounting structure is stable and reliable.

As shown in fig. 7 and 8, the outer casing 3 is provided with a mounting cavity 23 for accommodating the inner casing 4, a T-shaped limiting groove 24 is formed in the inner wall of the mounting cavity 23 from top to bottom, a T-shaped limiting protrusion 25 matched with the T-shaped limiting groove 24 is formed on the outer side of the inner casing 4, and the dismounting operation is very convenient.

As shown in fig. 7 and 8, a guiding groove 26 is further provided on the inner wall of the installation cavity 23 from top to bottom, and a guiding protrusion 27 matched with the guiding groove 26 is provided on the outer side of the inner shell 4, so that the installation of the inner shell 4 is further facilitated.

In addition, the PCB assembly 2 and the base 1 are mounted on the housing 3 by screws, a plurality of conical buckles 28 are provided on the housing 3, and a plurality of card interfaces 29 matched with the conical buckles 28 are provided on the LENS assembly 6.

Working principle: in operation, the white LED9 diffuses light through the light guide 5, then through a film 7 printed with red ink 13, white ink 14 and blue ink 15, where the white backlight is divided into three colored areas by the three colored film 7, and finally through the LENS with the gray substrate 10 of the transmissive character 12. Namely, the utility model skillfully merges the gray LENS and the color membrane 7, and displays an integral black effect when no backlight exists; the thickness of the membrane 7 is generally 0.15-0.25 mm, and optimally 0.2mm, so that no light channeling exists among the colors, and the quality performance of the product is greatly improved.

Claims

1. The utility model provides a piano black panel prevents scurrying light structure, includes base (1), PCB assembly (2), shell (3), inner shell (4), light guide body (5) and LENS assembly (6), base (1) and LENS assembly (6) set up respectively at shell (3) both ends, inner shell (4) and PCB assembly (2) are installed in shell (3) from top to bottom, light guide body (5) are installed on inner shell (4); the method is characterized in that: still including setting up diaphragm (7) near LENS assembly (6) one end at light guide body (5), be equipped with polychromatic printing ink (8) on diaphragm (7), be equipped with white LED (9) of a plurality of polychromatic printing ink (8) below that are located respectively on diaphragm (7) on PCB assembly (2), LENS assembly (6) include grey substrate (10) and set up in protection film (11) of grey substrate (10) surface, correspond on protection film (11) the position of diaphragm (7) top is equipped with printing opacity character (12).

2. The piano black panel light channeling prevention structure according to claim 1, wherein: the multicolor ink (8) on the membrane (7) comprises red ink (13), white ink (14) and blue ink (15) which are arranged side by side, and the number of the white LED (9) lamps is 3.

3. The piano black panel light channeling prevention structure according to claim 1, wherein: the thickness of the membrane (7) is 0.15-0.25 mm.

4. The piano black panel light channeling prevention structure according to claim 1, wherein: the back of the membrane (7) is adhered to the light guide body (5) through transparent back glue.

5. The piano black panel light channeling prevention structure according to claim 2, characterized in that: the light guide body (5) comprises an upper light guide part (16) and three lower light guide parts (17) arranged at the lower end of the upper light guide part (16), three insertion holes (18) are respectively formed in positions, corresponding to the positions above the membrane (7), the red ink (13), the white ink (14) and the blue ink (15), of the inner shell (4), and the three lower light guide parts (17) are respectively inserted into the corresponding insertion holes (18).

6. The piano black panel light channeling prevention structure of claim 5, wherein: the light guide device is characterized in that a transverse limiting clamping groove (19) is formed in the inner shell (4), transverse limiting ribs (20) matched with the transverse limiting clamping groove (19) are arranged on the light guide body (5), longitudinal limiting clamping grooves (21) are formed in the side portion of the inner shell (4), and longitudinal limiting protrusions (22) matched with the longitudinal limiting clamping grooves (21) are arranged on the light guide body (5).

7. The piano black panel light channeling prevention structure of claim 6, wherein: the novel inner shell is characterized in that the outer shell (3) is provided with a mounting cavity (23) for accommodating the inner shell (4), a T-shaped limiting groove (24) is formed in the inner wall of the mounting cavity (23) from top to bottom, and T-shaped limiting protrusions (25) matched with the T-shaped limiting groove (24) are arranged on the outer side of the inner shell (4).

8. The piano black panel light channeling prevention structure of claim 7, wherein: the inner wall of the installation cavity (23) is further provided with a guide groove (26) from top to bottom, and the outer side of the inner shell (4) is provided with a guide protrusion (27) matched with the guide groove (26).

9. The piano black panel light channeling prevention structure according to claim 1, wherein: the PCB assembly (2) and the base (1) are installed on the shell (3) through screws, a plurality of conical buckles (28) are arranged on the shell (3), and a plurality of clamping interfaces (29) matched with the conical buckles (28) are arranged on the LENS assembly (6).