CN220526109U

CN220526109U - Dustproof assembly of display device

Info

Publication number: CN220526109U
Application number: CN202322122541.9U
Authority: CN
Inventors: 朱良富; 李猛; 朱以胜
Original assignee: Shenzhen Guangtu Display Technology Co ltd
Current assignee: Shenzhen Guangtu Display Technology Co ltd
Priority date: 2023-08-08
Filing date: 2023-08-08
Publication date: 2024-02-23
Anticipated expiration: 2033-08-08

Abstract

The utility model discloses a dustproof assembly of a display device. The display device comprises an optical machine and an optical waveguide assembly, wherein an exit port of the optical machine corresponds to an entrance pupil area of the optical waveguide assembly, the dustproof assembly comprises a dustproof piece, and the dustproof piece is arranged between the exit port of the optical machine and the entrance pupil area; the dustproof piece is a hollow structure with the top communicated with the bottom, the bottom of the dustproof piece is hermetically installed at the exit, and the top of the dustproof piece is hermetically abutted to the entrance pupil. The utility model enables the exit port to be communicated with the entrance pupil area in a sealing way through the dustproof piece, so that the exit port is separated from the outside of the exit port, and the utility model has the advantage of preventing dust deposition at the exit port so as to ensure the light exit effect.

Description

Dustproof assembly of display device

Technical Field

The utility model relates to the technical field of HUD display, in particular to a dustproof assembly of a display device.

Background

HUD display device is widely used in the automotive filed, and HUD display device is generally embedded to be installed on the center console of vehicle, and it can be with showing the content projection on the windshield in driver the place ahead, has effectively promoted the convenience that the driver watched.

The HUD display device comprises an optical machine and an optical waveguide assembly, wherein an exit port of the optical machine corresponds to an entrance pupil area of the optical waveguide assembly, and light is emitted to the entrance pupil area of the optical waveguide through the exit port of the optical machine and transmitted to a windshield after being transmitted by the optical waveguide.

In the existing HUD display device, a certain interval exists between an emergent opening of the optical machine and an entrance pupil area of the optical waveguide, and ash is easy to deposit in the emergent opening of the optical machine in the long-term use process, so that the light emergent effect of the optical machine is affected.

Disclosure of Invention

The utility model aims to provide a dustproof component of a display device, and aims to solve the problem of dust accumulation at an exit port of an optical machine in the existing HUD display device.

In order to solve the technical problems, the aim of the utility model is realized by the following technical scheme: the utility model provides a dustproof subassembly of display device, display device includes ray apparatus and optical waveguide subassembly, the exit port of ray apparatus with the entrance pupil area of optical waveguide subassembly corresponds, dustproof subassembly includes:

the dustproof piece is arranged between the exit opening of the optical machine and the entrance pupil area;

the dustproof piece is of a hollow structure with the top communicated with the bottom, the bottom of the dustproof piece is hermetically installed at the emergent port, and the top of the dustproof piece is hermetically abutted to the entrance pupil area.

Further, a sealing ring is arranged on the top of the dust-proof piece in a protruding mode, and the sealing ring is in sealing abutting connection with the entrance pupil area.

Further, a concave table is arranged on the emission port, and the bottom of the dust-proof piece is embedded in the concave table.

Further, a connecting piece is arranged between the bottom of the dustproof piece and the concave table, and the dustproof piece and the concave table are connected in a sealing mode through the connecting piece.

Further, the connecting piece comprises two adapting pieces, one adapting piece is arranged in the concave table, the other adapting piece is arranged at the bottom of the dustproof piece, and the two adapting pieces are adhered to each other.

Further, openings corresponding to the emergent openings are formed in the two adapting pieces, and the emergent openings are communicated with the dustproof piece through the openings.

Further, the shape of the opening is a circle, and the shape of the sealing ring is a corresponding circle.

Further, the display device comprises a shell, the optical machine is arranged in the shell, the optical waveguide assembly is arranged at the top outside the shell, a communication port is formed in the top of the shell, and the top of the dust-proof piece passes through the communication port and then is abutted to an entrance pupil area of the optical waveguide assembly.

Further, the concave table is obliquely arranged, and the bottom of the dust-proof piece is obliquely arranged in the concave table, so that the top of the dust-proof piece is parallel to the horizontal plane.

The embodiment of the utility model provides a dustproof assembly of a display device. The display device comprises an optical machine and an optical waveguide assembly, wherein an exit port of the optical machine corresponds to an entrance pupil area of the optical waveguide assembly, the dustproof assembly comprises a dustproof piece, and the dustproof piece is arranged between the exit port of the optical machine and the entrance pupil area; the dustproof piece is a hollow structure with the top communicated with the bottom, the bottom of the dustproof piece is hermetically installed at the exit, and the top of the dustproof piece is hermetically abutted to the entrance pupil. According to the embodiment of the utility model, the exit opening and the entrance pupil area are communicated in a closed manner through the dustproof piece, so that the exit opening is separated from the outside of the exit opening, and the dustproof device has the advantages of preventing dust deposition at the exit opening so as to ensure the light exit effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an exploded view of a display device according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the portion A in FIG. 1;

fig. 3 is a schematic diagram of a partial explosion structure of a display device according to an embodiment of the present utility model.

The figure identifies the description:

1. a housing; 11. a communication port;

2. a light machine; 21. an outlet port; 22. a concave table;

3. an optical waveguide assembly; 31. an entrance pupil area;

4. a dust-proof member; 41. a sealing ring;

5. an adapter piece; 51. an opening.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. 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 understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Referring to fig. 1-3, an embodiment of the present utility model provides a dustproof assembly of a display device, where the display device includes a housing 1, an optical device 2 and an optical waveguide assembly 3, the optical device 2 is disposed in the housing 1, the optical waveguide assembly 3 is disposed at the top outside the housing 1, the top of the housing 1 is provided with a communication port 11 communicating with the interior, the optical device 2 is provided with an exit port 21 corresponding to the communication port 11, the optical waveguide assembly 3 is provided with an entrance pupil area 31 corresponding to the communication port 11, the optical device 2 emits light through the exit port 21, and the light is emitted into the entrance pupil area 31 after passing through the communication port 11 and is transmitted by the optical waveguide assembly 3 to project a display image. The dustproof subassembly includes dust guard 4, and dust guard 4 sets up between exit port 21 and the entrance pupil area 31 of ray apparatus 2, and dust guard 4 is the hollow structure of top and bottom intercommunication, and the airtight installation in exit port 21 in bottom of dust guard 4, airtight butt in entrance pupil area 31 after upwards passing communication port 11 in the top of dust guard 4.

In order to solve the problem of dust accumulation at the exit port 21, the dustproof member 4 is additionally arranged between the exit port 21 and the entrance pupil 31, and the exit port 21 and the entrance pupil 31 are communicated in a sealed manner through the dustproof member 4, so that the exit port 21 is separated from the outside of the exit port 21, and dust accumulation at the exit port 21 is prevented to ensure the exit effect of light.

The dust-proof member 4 of the present application is specifically described below:

in some embodiments, the circumferential periphery of the outlet 21 is raised by a ring-shaped block and forms a recess 22, and the bottom of the dust-proof member 4 is fitted in the recess 22. Specifically, the recess 22 may be square, circular or other polygonal structures; correspondingly, the shape of the bottom of the dustproof piece 4 is matched with the shape of the concave table 22, and the bottom of the dustproof piece 4 is embedded in the concave table 22, so that airtight connection between the dustproof piece 4 and the emergent port 21 can be realized.

In some embodiments, the top of the dust-proof piece 4 is convexly provided with a sealing ring 41, and the sealing ring 41 is in sealing contact with the entrance pupil 31. Specifically, the sealing ring 41 may be made of a rubber material, which has a certain softness and elasticity, and after the sealing ring 41 abuts against the entrance pupil area 31, the sealing connection between the dust-proof piece 4 and the entrance pupil area 31 can be realized.

It can be seen that by adding the dust-proof member 4 between the exit opening 21 and the entrance pupil 31 and hermetically connecting the bottom of the dust-proof member 4 to the exit opening 21 and hermetically connecting the top of the dust-proof member 4 to the entrance pupil 31, dust can be prevented from entering the exit opening 21 from the interval between the exit opening 21 and the entrance pupil 31, thereby achieving a dust-proof effect.

In some embodiments, to ensure the mounting stability between the bottom of the dust-proof piece 4 and the concave table 22, a connecting piece is provided between the bottom of the dust-proof piece 4 and the concave table 22, and the connecting piece may include two adapting pieces 5, one adapting piece 5 is disposed in the concave table 22, the other adapting piece 5 is disposed at the bottom of the dust-proof piece 4, and the two adapting pieces 5 may be connected by adopting an adhesive manner; thus, the stable airtight connection between the bottom of the dust-proof piece 4 and the concave table 22 can be realized; it should be understood that the connection manner between the adapter piece 5 and the bottom of the dust-proof piece 4 and the concave table 22 can also be an adhesive manner, or a screw fixing manner, or the bottom of the dust-proof piece 4 can also be directly inserted into the concave table 22 in an interference manner, so that airtight connection can be realized.

In some embodiments, the two adapting pieces 5 are provided with openings 51 which are the same as the shape and the size of the outlet 21, and the outlet 21 is communicated with the dust-proof piece 4 through the openings 51.

In this embodiment, the opening 51 on the adapter piece 5 is used for avoiding the emission of light, the emission port 21 is generally circular, and the shape and the size of the opening 51 are correspondingly circular with the same size; the hollow channel inside the dustproof piece 4 can also be a circular channel with equal diameter or other shapes with larger caliber, and only the light rays emitted by the emission port 21 are ensured not to be blocked; correspondingly, the shape and size of the sealing ring 41 are the same as those of the opening 51. It will be appreciated that the shapes and sizes of the outlet 21, the opening 51 and the sealing ring 41 are preferably the same, and the center positions are overlapped.

In some embodiments, the light engine 2 inside the display device is mounted at a certain inclination angle under the influence of the usage scene of the display device, such as when the display image is projected at some positions with inclination angles and arc surfaces (such as when the display image is projected onto a front windshield from a console in an automobile), which results in that the exit opening 21 of the light engine 2 is inclined, that is, the plane of the exit opening 21 and the plane of the entrance pupil area 31 are not in a parallel plane; in this case, according to the inclination angle of the exit 21, the bottom of the dust-proof member 4 is inclined at the same angle, and the top of the mounted dust-proof member 4 and the entrance pupil 31 can be arranged on a parallel surface by the reverse installation at the same inclination angle, so that the sealing ring 41 at the top of the dust-proof member 4 can be stably and closely abutted with the entrance pupil 31, thereby ensuring the dust-proof effect.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. The utility model provides a dustproof subassembly of display device, display device includes ray apparatus and optical waveguide subassembly, the exit port of ray apparatus with the entrance pupil area of optical waveguide subassembly corresponds, its characterized in that, dustproof subassembly includes:

2. The dustproof assembly of the display device according to claim 1, wherein a sealing ring is arranged on the top of the dustproof piece in a protruding mode, and the sealing ring is in sealing contact with the entrance pupil area.

3. The dustproof assembly of the display device according to claim 2, wherein a concave table is arranged on the emission port, and the bottom of the dustproof member is embedded in the concave table.

4. A dust-proof assembly for a display device according to claim 3, wherein a connector is provided between the bottom of the dust-proof member and the recess, the dust-proof member and the recess being hermetically connected by the connector.

5. The dustproof assembly of claim 4, wherein the connector comprises two adapter pieces, one adapter piece is arranged in the concave table, the other adapter piece is arranged at the bottom of the dustproof piece, and the two adapter pieces are adhered.

6. The dustproof assembly of the display device according to claim 5, wherein openings corresponding to the exit openings are formed in both the fitting pieces, and the exit openings are communicated with the dustproof member through the openings.

7. The dust assembly of claim 6, wherein the opening is circular in shape and the sealing ring is correspondingly circular in shape.

8. The dustproof assembly of the display device according to claim 1, wherein the display device comprises a housing, the optical machine is arranged in the housing, the optical waveguide assembly is arranged at the outer top of the housing, a communication port is formed in the top of the housing, and the top of the dustproof member is abutted to an entrance pupil area of the optical waveguide assembly after passing through the communication port.

9. A dust-proof assembly for a display device according to claim 3, wherein the recess is inclined, and the bottom of the dust-proof member is inclined to be mounted in the recess so that the top of the dust-proof member is parallel to a horizontal plane.