CN218888915U

CN218888915U - Head-mounted display cooling system

Info

Publication number: CN218888915U
Application number: CN202222842492.1U
Authority: CN
Inventors: 王冲; 刘冬华
Original assignee: Shenzhen Ned Optics Co Ltd
Current assignee: Shenzhen Ned Optics Co Ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-04-18
Anticipated expiration: 2032-10-27

Abstract

The utility model relates to a head-mounted display cooling system, which comprises a display main body and a face mask, wherein the display main body is provided with a first air inlet, a first air outlet and a fan which exhausts air in the display main body from the first air outlet; use the structure after this application improves, be provided with two tunnel inlet lines in the display main part, its one way direct through first air intake, display main part inner chamber and first air outlet are accomplished, another way is then through the inlet air duct on the face guard, the face guard inner chamber, cross the wind gap, display main part inner chamber and first air outlet are accomplished, this cooling system passes through the reasonable setting in business turn over wind gap, give inside PCB mainboard and the heat dissipation of display die utensil, the permeability of face guard and people's face has also been guaranteed simultaneously, promote the travelling comfort, steam produced the fog on the display module eyepiece between face guard and the people's face has also been avoided.

Description

Head-mounted display cooling system

Technical Field

The utility model relates to a wear display technical field, more specifically say, relate to a wear display cooling system.

Background

Head Mounted Display (HMD), i.e. head display. Through various head shows, send optical signal to eyes, can realize different effects such as Virtual Reality (VR), augmented Reality (AR), mixed Reality (MR).

The head-mounted device who adopts at present can set up one set of cooling system usually and dispel the heat for its inside component, and partial head-mounted device still can additionally set up one set of anti-fogging system that prevents fogging in order to prevent that the eyepiece from fogging simultaneously, and these two systems still are difficult to reasonable unify at present, need carry out institutional advancement.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to prior art's above-mentioned defect, a wear display cooling system is provided.

The utility model provides a technical scheme that its technical problem adopted is:

the head-mounted display cooling system comprises a display main body and a face mask, wherein the display main body is provided with one or more first air inlets and one or more first air outlets, and a fan which discharges air from the first air outlets in the display main body, one or more air inlet channels are arranged on the face mask, and an air passing opening communicated with the inner space of the face mask is arranged on the display main body.

The utility model discloses a head-mounted display cooling system, wherein, be provided with the first air runner to PCB mainboard heat dissipation and the second air runner to the display module assembly heat dissipation in the display main part; and a first suction opening corresponding to the first air flow channel and a second suction opening corresponding to the second air flow channel are arranged on the fan.

Wear display cooling system, wherein, be provided with the shield cover on the PCB mainboard, be provided with second air intake and second air outlet on the shield cover, the second air intake the inner space of shield cover and the second air outlet constitutes first air runner.

Head-mounted display cooling system, wherein, be provided with heat-conducting piece and radiating piece in the shield cover, the heat-conducting piece with heating element laminates mutually on the PCB mainboard, the radiating piece will heat-conducting piece heat gives off the inner space of shield cover and/or will heat-conducting piece heat conduction is to on the shield cover.

Wear display cooling system, wherein, the radiating piece is the graphite flake.

Wear display cooling system, wherein, heat-conducting member is heat conduction silica gel.

Wear display cooling system, wherein, the fan is turbofan, first suction opening with the second suction opening sets up respectively the lower surface and the upper surface of fan, turbofan's air outlet is located its side surface.

Wear display cooling system, wherein, the inside of display main part is located the regional constitution of display module group week side the second air flow channel.

Wear display cooling system, wherein, first air intake setting is in the lower extreme of display main part, first air outlet sets up the upper end of display main part.

Wear display cooling system, wherein, inlet air duct is including setting up one or more air-inlet grille of the side surface of face guard.

The beneficial effects of the utility model reside in that: use the structure after this application improves, be provided with two tunnel inlet routes in the display main part, its one way direct through first air intake, display main part inner chamber and first air outlet are accomplished, another way is then through the inlet air duct on the face guard, the face guard inner chamber, cross the wind gap, display main part inner chamber and first air outlet are accomplished, this cooling system passes through the reasonable setting in business turn over wind gap, give inside PCB mainboard and the heat dissipation of display module, the permeability of face guard and people's face has also been guaranteed simultaneously, promote the travelling comfort, steam produced the fog on the display module eyepiece between face guard and the people's face has also been avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to these drawings:

FIG. 1 is a schematic diagram of a heat dissipation system for a head-mounted display according to a preferred embodiment of the present invention;

fig. 2 is a front side view of a heat dissipation system for a head-mounted display according to a preferred embodiment of the present invention;

FIG. 3 is an internal view of a heat dissipation system for a head-mounted display according to a preferred embodiment of the present invention;

fig. 4 is an exploded view of the assembly of the head-mounted display cooling system display module, the PCB main board and the fan according to the preferred embodiment of the present invention;

fig. 5 is a schematic view of an air outlet structure of a fan of a heat dissipation system of a head-mounted display according to a preferred embodiment of the present invention;

fig. 6 is a cross-sectional view of a heat dissipation system for a head-mounted display according to a preferred embodiment of the present invention;

fig. 7 is a schematic structural view of a fan of a heat dissipation system of a head-mounted display according to a preferred embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

The heat dissipation system for a head-mounted display according to a preferred embodiment of the present invention is shown in fig. 1, and referring to fig. 2-7, including a display main body 1 and a mask (preferably made of silica gel) 2, the display main body 1 is provided with one or more first air inlets 10 and a first air outlet 11, and a fan 3 for exhausting air in the display main body 1 from the first air outlet 11, the mask 2 is provided with one or more air inlet passages 20, the display main body 1 is provided with an air inlet 12 communicated with an inner space of the mask 2;

use the structure after this application improves, be provided with two tunnel air inlet lines on the display main part 1, its one way direct through

first air intake

10, 1 inner chamber of display main part and first air outlet 11 are accomplished, another way is then through inlet air channel 20 on the

face guard

2, 2 inner chambers of face guard,

cross wind gap

12, 1 inner chamber of display main part and first air outlet 11 are accomplished, this cooling system passes through the reasonable setting in business turn over wind gap, give inside PCB mainboard and display die heat dissipation, the permeability of face guard and people's face has also been guaranteed simultaneously, promote the travelling comfort, steam has also been avoided between face guard and the people's face and has produced the fog on display eyepiece module 4.

The air intake channel 20 may be in the form of one or more air intake grills disposed on the side surface of the mask 2, or may be in the form of an existing air intake channel.

Another preferred embodiment of the present application:

a first air flow channel for radiating the PCB main board 13 and a second air flow channel for radiating the display module 17 are arranged in the display main body 1; a first suction opening 30 corresponding to the first air flow channel and a second suction opening 31 corresponding to the second air flow channel are arranged on the fan 3; preferably, the fan 3 is a turbo fan, the first suction opening 30 and the second suction opening 31 are respectively arranged on the lower surface and the upper surface of the fan 3, and the turbo fan outlet 35 is located on the side surface of the turbo fan;

when the turbine fan operates, the turbine can throw air out of the air outlet on the side surface and simultaneously intake air from the upper surface and the lower surface of the turbine fan, so that air suction power is simultaneously provided for two air intake routes, and the structure is reasonable and extremely compact; in fig. 4, 32 is a sealing ring, and 33 is a fan bracket; in fig. 5, reference numeral 34 denotes an outlet sealing foam, and 19 denotes an outlet support forming a plurality of first outlets 11;

preferably, the PCB main board 13 is provided with the shielding case 14, the shielding case 14 is provided with a second air inlet 140 and a second air outlet 141, and the second air inlet 140, the inner space of the shielding case 14 and the second air outlet 141 form a first air flow channel; the shielding cover 14 provides shielding protection for the PCB main board 13, and an air duct is formed on the shielding cover, so that heat dissipation for the PCB main board 13 is facilitated; preferably, the second air inlet of the shielding cover 14 can be disposed close to the air inlet 12;

preferably, a heat conduction member 15 and a heat dissipation member 16 are disposed in the shielding case 14, the heat conduction member 15 is attached to a heating element 130 (e.g., a component such as a CPU that generates relatively large heat) on the PCB main board 13, and the heat dissipation member 16 dissipates heat of the heat conduction member 15 into an inner space of the shielding case 14 and/or conducts heat of the heat conduction member to the shielding case 14; the heat is quickly diffused into the shielding cover 14 or on the shielding cover 14 through the heat conduction of the heat conduction piece 15 and the heat dissipation piece 16, and the reliability of heat dissipation can be well guaranteed by combining with the air outlet cooling, so that the heat dissipation effect is good;

the heat dissipation member 16 preferably adopts a graphite sheet, and the heat conduction member 15 is heat conduction silica gel, and of course, other existing heat dissipation devices and heat conduction devices can be adopted, and conventional replacement based on the principle belongs to the protection scope of the present application;

preferably, the area 18 located on the periphery of the display module 17 inside the display main body 1 forms a second air flow channel; the first air inlet 10 is arranged at the lower end of the display main body 1, and the first air outlet 11 is arranged at the upper end of the display main body 1; when dispelling the heat, the air gets into through the first air intake 11 of lower part, then bypasses display module assembly 17's surface (and the outside of shield cover 14), is taken out from first air outlet 11 by the fan again to can be better dispel the heat to display module assembly 17.

It will be understood that modifications and variations are possible to those skilled in the art in light of the above teachings and that all such modifications and variations are considered to be within the purview of the invention as set forth in the appended claims.

Claims

1. The utility model provides a wear display cooling system, includes display main part and face guard, be provided with one or more first air intake, first air outlet in the display main part, and will the fan of air follow first air outlet exhaust in the display main part, its characterized in that, be provided with one or more inlet channel on the face guard, be provided with in the display main part with the wind gap of crossing that the inner space of face guard is linked together.

2. The heat dissipation system of claim 1, wherein a first air flow channel for dissipating heat from the PCB main board and a second air flow channel for dissipating heat from the display module are disposed in the display main body; and a first air suction opening corresponding to the first air flow channel and a second air suction opening corresponding to the second air flow channel are arranged on the fan.

3. The heat dissipation system of claim 2, wherein a shielding case is disposed on the PCB main board, a second air inlet and a second air outlet are disposed on the shielding case, and the second air inlet, the inner space of the shielding case, and the second air outlet form the first air flow channel.

4. The heat dissipation system for the head-mounted display according to claim 3, wherein a heat conducting element and a heat dissipation element are disposed in the shield case, the heat conducting element is attached to the heat generating element on the PCB motherboard, and the heat dissipation element dissipates heat of the heat conducting element into an inner space of the shield case and/or conducts heat of the heat conducting element to the shield case.

5. The head-mounted display heat dissipation system of claim 4, wherein the heat dissipation element is a graphite sheet.

6. The heat dissipation system of claim 4, wherein the thermal conductive member is a thermally conductive silicone.

7. The heat dissipation system of any one of claims 2 to 6, wherein the fan is a turbo fan, the first suction opening and the second suction opening are respectively disposed on a lower surface and an upper surface of the fan, and an air outlet of the turbo fan is located on a side surface of the turbo fan.

8. The heat dissipation system of any one of claims 2-6, wherein a region of the interior of the display main body located on the periphery of the display module forms the second air flow channel.

9. The heat dissipation system of any one of claims 1-6, wherein the first air inlet is disposed at a lower end of the display main body, and the first air outlet is disposed at an upper end of the display main body.

10. The heat dissipation system of any one of claims 1-6, wherein the air inlet channel comprises one or more air inlet grills disposed on a side surface of the mask.