CN112415751A

CN112415751A - VR equipment shell, manufacturing method thereof and VR equipment

Info

Publication number: CN112415751A
Application number: CN202011368105.4A
Authority: CN
Inventors: 冯宗东; 宋吉智; 窦荣洋; 任强; 潘飞; 衣晓良
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-02-26
Anticipated expiration: 2040-11-30
Also published as: CN112415751B

Abstract

The invention discloses a VR equipment shell, a manufacturing method thereof and VR equipment. Wherein, VR equipment housing includes main part shell, lid shell and inserts, the lid shell lid fits the main part shell to enclose form with the installation space of inserts looks adaptation, the inserts is located in the installation space, the inserts includes at least one deck aerogel sandwich layer. According to the technical scheme, the weight of the VR equipment shell can be reduced, and the wearing comfort of a user is improved.

Description

VR equipment shell, manufacturing method thereof and VR equipment

Technical Field

The invention relates to the technical field of VR equipment, in particular to a VR equipment shell, a manufacturing method thereof and VR equipment.

Background

With the gradual development of the field of Virtual Reality, Virtual Reality (VR) devices are more and more concerned by users, and especially attention of head-mounted VR devices is increasing day by day. The housing of the VR device is typically made of a plastic, such as polycarbonate, polyamide, polypropylene, and a plastic such as a propylene-butadiene-styrene copolymer. The VR equipment housing made of plastic material has a heavy weight, which often results in poor wearing comfort for the user.

Disclosure of Invention

The invention mainly aims to provide a VR equipment shell, a manufacturing method thereof and VR equipment, and aims to reduce the weight of the VR equipment shell and improve the wearing comfort of a user.

In order to achieve the purpose, the VR equipment housing provided by the invention comprises a main body housing, a cover housing and an insert, wherein the cover housing covers the main body housing and encloses to form an installation space matched with the insert, the insert is arranged in the installation space, and the insert comprises at least one aerogel core layer.

In an alternative embodiment, the aerogel core has a density of 0.0355g/cm³-0.2g/cm³(ii) a And/or the thickness of the aerogel core layer is 0.4mm-1.6 mm.

In an optional embodiment, the material of the aerogel core layer is at least one of carbon aerogel, silicon aerogel, and a porous foam material with aerogel as a matrix.

In an alternative embodiment, the insert further comprises a bi-directional fiber prepreg layer disposed on a surface of the aerogel core layer.

In an alternative embodiment, the areal density of the bidirectional fibrous prepreg layer is 70g/m²-300g/m²(ii) a And/or the thickness of the bidirectional fiber prepreg layer is 40-160 μm.

In an optional embodiment, the fibers in the bidirectional fiber prepreg layer are at least one of carbon fibers, glass fibers, basalt fibers and aramid fibers.

In an optional embodiment, the aerogel core layer is a single layer, the bidirectional fiber prepreg layer is two layers, and the two bidirectional fiber prepreg layers are respectively disposed on two surfaces of the aerogel core layer.

In an alternative embodiment, the insert has a density of 0.5g/cm³-0.6g/cm³(ii) a And/or the insert has a thickness that is 40% to 80% of the total thickness of the VR device housing; and/or the volume of the insert is 20% to 60% of the total volume of the VR device housing.

In an alternative embodiment, the material of the housing main body is at least one of polycarbonate, polyamide, polypropylene, and propylene-butadiene-styrene copolymer.

The invention also provides a manufacturing method of the VR equipment shell, which comprises the following steps:

manufacturing an insert, wherein the insert comprises at least one aerogel core layer;

and placing the insert into an injection mold, injecting a plastic material into the injection mold, coating the insert with the plastic material, and performing injection molding to obtain the VR equipment shell.

In an optional embodiment, the step of manufacturing the insert includes:

paving bidirectional fiber prepreg on the surface of the aerogel core layer to obtain a blank;

and sequentially laminating and compression molding the blank, and curing to obtain the insert.

In an optional embodiment, the bidirectional fiber prepreg is prepared by impregnating a bidirectional woven fiber layer in a prepreg glue solution, and the prepreg glue solution is at least one of an epoxy resin glue solution, a phenolic resin glue solution and an unsaturated polyester resin glue solution.

In an alternative embodiment, the step of laying bidirectional fiber prepregs on the surface of the aerogel core layer to obtain a preform includes:

and respectively paving bidirectional fiber prepregs on two surfaces of the aerogel core layer to obtain a blank.

The invention also provides a VR device comprising a VR device housing as described above.

According to the technical scheme, the VR equipment shell comprises a main body shell, a cover shell and an insert, the cover shell covers the main body shell, the cover shell and the main body shell are enclosed to form an installation space matched with the insert, the insert is arranged in the installation space, and the insert comprises at least one aerogel core layer. Here adopt the aerogel base VR equipment casing, compare in the VR equipment casing of pure adoption plastics material preparation, can alleviate the weight of VR equipment casing effectively, promote user's the travelling comfort of wearing. Meanwhile, the shell of the VR equipment adopting the aerogel base also has good heat insulation and sound insulation effects.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that 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 according to the structures shown in the drawings without creative efforts.

FIG. 1 is an exploded view of an embodiment of a VR device housing in accordance with the present invention;

FIG. 2 is a schematic cross-sectional view of the insert of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the insert of FIG. 1 from another perspective;

fig. 4 is a schematic flow chart illustrating steps of a method for manufacturing a VR device housing according to an embodiment of the present invention;

FIG. 5 is a flowchart illustrating a detailed step of step S10 in FIG. 4;

fig. 6 is a schematic flowchart of a refinement step of another embodiment of step S10 in fig. 4.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	VR Equipment case	30	Insert piece
10	Main body shell	31	Aerogel core layer
				10a	Installation space		32	Bidirectional fiber prepreg layer
20	Cover shell

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a VR device housing 100, and the VR device housing 100 can be selected as a VR head-mounted device housing.

Referring to fig. 1 and 2, in an embodiment of the VR device housing 100 of the present invention, the VR device housing 100 includes a body shell 10, a cover shell 20, and an insert 30, where the cover shell 20 covers the body shell 10 and encloses an installation space 10a adapted to the insert 30, the insert 30 is disposed in the installation space 10a, and the insert 30 includes at least one aerogel core layer 31.

Aerogel is a relatively light solid with a density of up to 3.55kg/m³The material is only 2.75 times of air, mainly comprises silicon dioxide aerogel and carbon aerogel, has the performances of extremely low refractive index, thermal conductivity, dielectric constant, high specific surface area, selective permeation of gas and the like, has the mechanical, acoustic, thermal, optical and electrical properties obviously different from those of common solid materials, and is a light nano porous material with a plurality of peculiar properties and wide application. This is achieved byAdopt the aerogel base as the inserts 30 of VR equipment housing 100 in, inserts 30 are the loop configuration, and main part shell 10 also is the loop configuration with the installation space 10a that the lid shell 20 encloses and closes the formation, and installation space 10a and inserts 30 looks adaptation, inlays inserts 30 and locates in installation space 10a, alright constituted VR equipment housing 100, can make VR equipment housing 100 have advantages such as lightweight, thermal-insulated, give sound insulation like this.

It should be noted that, here, the insert 30, the main body case 10 and the cover case 20 are integrated into an integral structure, that is, the VR device housing 100, and optionally, the insert 30, the main body case 10 and the cover case 20 are integrated into an integral structure through an injection molding process.

It can be understood that, according to the technical solution of the present invention, the VR device housing 100 includes a main body housing 10, a cover housing 20 and an insert 30, the cover housing 20 covers the main body housing 10, the cover housing and the cover housing enclose an installation space 10a adapted to the insert 30, the insert 30 is disposed in the installation space 10a, and the insert 30 includes at least one aerogel core layer 31. Here adopt the aerogel base VR equipment casing 100, compare in the VR equipment casing 100 of pure adoption plastics material preparation, can alleviate VR equipment casing 100's weight effectively, promote user's the travelling comfort of wearing. Meanwhile, the shell 100 of the VR equipment adopting the aerogel base also has good heat insulation and sound insulation effects.

In an alternative embodiment, aerogel core 31 has a density of 0.0355g/cm³-0.2g/cm³. The aerogel core layer 31 within this density range can be used to effectively reduce the weight of the aerogel core layer 31, thereby effectively reducing the overall weight of the VR device housing 100. For example, aerogel core 31 has a density of 0.0355g/cm³、0.1g/cm³、0.15g/cm³Or 0.2g/cm³。

In alternative embodiments, aerogel core 31 has a thickness of 0.4mm to 1.6 mm. Adopt the aerogel sandwich layer 31 of this thickness scope, both can lighten VR equipment housing 100's whole weight effectively, can not influence VR equipment housing 100's whole thickness again. Aerogel core 31 may have a thickness of, for example, 0.4mm, 0.8mm, 1.2mm, or 1.6 mm.

In an optional embodiment, the material of the aerogel core layer is at least one of carbon aerogel, silicon aerogel, and a porous foam material with aerogel as a matrix. The carbon aerogel, the silicon aerogel and the porous foam material using the aerogel as the matrix are all light materials, so that the whole weight of the VR device shell 100 can be effectively reduced by using the porous foam material as the insert, and when the aerogel core layer is selected, one or more of the materials can be selected.

In an alternative embodiment, insert 30 further includes a bi-directional fiber prepreg layer 32, where bi-directional fiber prepreg layer 32 is disposed on a surface of aerogel core layer 31.

Here, bidirectional fiber prepreg layer 32 may be disposed on any surface of aerogel core layer 31, and may protect aerogel core layer 31, effectively improving crack resistance and impact resistance of insert 30. It should be noted that the bidirectional fiber prepreg layer 32 is prepared by impregnating a bidirectional fiber woven fabric in a thermosetting resin glue solution, and has good impact resistance.

In an alternative embodiment, the fibers in the bidirectional fiber prepreg layer 32 are at least one of carbon fibers, glass fibers, basalt fibers and aramid fibers. The carbon fiber, the glass fiber, the basalt fiber and the aramid fiber are all high-strength fibers, the impact resistance is good, and one or more of the high-strength fibers can be selected and mixed when the composite material is used.

In an alternative embodiment, the areal density of the bidirectional fiber prepreg layer 32 is 70g/m²-300g/m²The bi-directional fiber prepreg layer 32 in this areal density range can effectively reduce the weight of the insert 30, thereby reducing the weight of the VR device housing 100, and also endow the insert 30 with low density, high specific modulus, and high strength properties. For example, the areal density of the bidirectional fiber prepreg layer 32 is 70g/m²、100g/m²、150g/m²、200g/m²Or 300g/m²。

In an alternative embodiment, the thickness of the bi-directional fiber prepreg layer 32 is 40-160 μm. With the bidirectional fiber prepreg layer 32 having the thickness range, good impact resistance can be ensured without affecting the overall thickness of the VR device housing 100. For example, the thickness of the bidirectional fiber prepreg layer 32 is 40 μm, 80 μm, 120 μm, or 160 μm.

Referring to fig. 2, in an embodiment of the present invention, the aerogel core 31 is a single layer, the bidirectional fiber prepreg layer 32 is two layers, and the two bidirectional fiber prepreg layers 32 are respectively disposed on two surfaces of the aerogel core 31.

In this embodiment, the insert 30 includes one layer of aerogel core layer 31 and two layers of bidirectional fiber prepreg layer 32, and two surfaces of aerogel core layer 31 are located respectively to two layers of bidirectional fiber prepreg layer 32, and the structure like this can promote insert 30's anti cracking performance by a wide margin to the life of VR device housing 100 has been guaranteed.

It should be noted that, when the insert 30 includes two bidirectional fiber prepreg layers 32, the two bidirectional fiber prepreg layers 32 may be made of the same material, for example, two bidirectional fiber prepreg layers 32 are both bidirectional carbon fiber prepreg layers; of course, the material may be different, and is not limited herein, and is within the scope of the present invention.

By adjusting the density of aerogel core 31 and bi-directional fiber prepreg layer 32, inserts 30 of different densities can be obtained. In an alternative embodiment, the insert 30 has a density of 0.5g/cm³-0.6g/cm³. The insert 30 is light and has high strength, and the lowest density can reach 0.5g/cm³The weight of the VR device housing 100 can be effectively reduced.

Further, by adjusting the thickness of aerogel core 31 and bi-directional fiber prepreg layer 32, inserts 30 of different thicknesses can be obtained. In alternative embodiments, the thickness of the insert 30 is 40% to 80% of the total thickness of the VR device housing 100, and the use of the insert 30 in this thickness range can effectively reduce the weight of the VR device housing 100, for example, the thickness of the insert 30 is designed to be 40%, 50%, 60%, 70%, or 80% of the total thickness of the VR device housing 100.

Further, by adjusting the volume of aerogel core 31 and bi-directional fiber prepreg layer 32, inserts 30 of different volumes can be obtained. Optionally, the insert 30 has a volume that is 20% to 60% of the total volume of the VR device housing 100. Using this volume range of the insert 30 can effectively reduce the weight of the VR device housing 100, for example, the insert 30 can be designed to have a volume that is 20%, 30%, or 60% of the total volume of the VR device housing 100.

Optionally, the material of the housing main body is at least one of Polycarbonate (PC), Polyamide (PA), polypropylene (PP), and propylene-butadiene-styrene copolymer (ABS). The bi-directional fiber prepreg layer 32 on the surface of the insert 30 has good bonding force with the plastic materials, so that the overall stability and reliability of the VR device shell 100 can be ensured.

The invention also provides a method for manufacturing the VR device housing 100, which is used for manufacturing the VR device housing 100.

Referring to fig. 4, in an embodiment of the method for making a VR device housing 100 of the present invention, the method for making the VR device housing 100 includes the steps of:

step S10, manufacturing an insert 30, wherein the insert 30 comprises at least one aerogel core layer 31;

step S20, placing the insert 30 into an injection mold, and injecting a plastic material into the injection mold, where the insert 30 is coated with the plastic material, and obtaining the VR device housing 100 after injection molding.

The insert 30, the main body shell 10 and the cover shell 20 are combined into an integrated structure by adopting an injection molding process, namely the VR device housing 100, wherein the main body shell 10 and the cover shell 20 are made of plastic materials, can be selected from one or more of polycarbonate, polyamide, polypropylene and propylene-butadiene-styrene copolymer, and are coated on the surface of the insert 30. The VR equipment shell 100 manufactured by the process steps is simple to operate, and the obtained VR equipment shell 100 is firm in structure, low in density, light in weight, high in specific modulus and high in strength.

It should be noted that the injection molded product is usually subjected to a series of post-processing operations to obtain the VR device housing 100 as desired by the user, and the post-processing operations include: surface treatment such as surface spraying, UV highlight treatment, AF, laser etching, sand blasting and the like. And packaging after the inspection is qualified.

Referring to fig. 2, 3 and 5, in an embodiment of the present invention, the step of manufacturing the insert 30 includes:

step S11, laying bidirectional fiber prepreg on the surface of the aerogel core layer 31 to obtain a blank;

and step S12, sequentially adhering the blanks and performing compression molding, and curing to obtain the insert 30.

Specifically, a layer of bidirectional fiber prepreg is laid on the surface of the aerogel core layer 31, the bidirectional fiber prepreg is prepared by immersing a bidirectional woven fiber layer in prepreg glue solution, the fiber type of the bidirectional woven fiber layer can be high-strength fibers such as carbon fibers, glass fibers, basalt fibers and aramid fibers, the thickness of the prepreg is 0.4mm-1.6mm, the structural blank is put into a laminating machine for pre-pressing, then the structural blank is put into a mold for compression molding, and the insert 30 can be obtained after curing after molding. The operation is simple and effective, and the manufactured insert 30 has better cracking resistance. It is understood that in the present embodiment, insert 30 includes aerogel core 31 and bi-directional fiber prepreg layer 32 disposed on a surface of aerogel core 31.

In an optional embodiment, the prepreg glue solution is at least one of an epoxy resin glue solution, a phenolic resin glue solution and an unsaturated polyester resin glue solution. It should be noted that, because the curing parameters of each glue solution are different, corresponding process parameters can be set according to the optimal curing parameters of the corresponding glue solution during the compression molding process, so as to obtain the insert 30 with a lower density.

Further, referring to fig. 6, step S11, the step of laying bidirectional fiber prepregs on the surface of aerogel core layer 31 to obtain a preform includes:

step S11a, laying bidirectional fiber prepregs on both surfaces of the aerogel core layer 31, respectively, to obtain a preform.

Here, two layers of bidirectional fiber prepregs are respectively laid on two surfaces of the aerogel core layer 31, and the two layers of bidirectional fiber prepregs may be made of the same material or different materials, which is not limited herein. By such operation, the crack resistance of the insert 30 can be greatly improved, thereby ensuring the service life of the VR device housing 100. It can be understood that, in this embodiment, the insert 30 includes one aerogel core layer 31 and two bidirectional fiber prepreg layers 32, where the two bidirectional fiber prepreg layers 32 are respectively disposed on two surfaces of the aerogel core layer 31, and are combined into an integrated structure by bonding and curing, that is, the insert 30.

The invention also proposes a VR device comprising a VR device housing 100 as described above, the VR device housing 100 being of a specific construction according to the previous embodiment. Since the VR device adopts all technical solutions of all the foregoing embodiments, at least all the beneficial effects brought by the technical solutions of the foregoing embodiments are achieved, and details are not repeated here.

The VR equipment can be VR head-mounted equipment such as VR glasses and VR helmets.

The VR device housing 100 and method of making the same of the present invention is described in detail below with reference to specific embodiments.

In an embodiment, a VR headset housing is fabricated by:

(1) manufacturing the insert 30: the insert 30 with the three-layer composite structure is obtained by compression molding the bidirectional carbon fiber prepreg, the aerogel core layer 31 and the bidirectional carbon fiber prepreg laminated structure, and the density of the insert 30 is 0.5g/cm³。

(2) Manufacturing a VR head-mounted device shell: the main body shell 10 and the cover shell 20 are made of PC material and have a density of 1.2g/cm³The body case 10, the insert 30, and the cover case 20 are manufactured as an integral structure by an injection molding process, which is the VR device case 100. Wherein, the thickness of the insert 30 is 80% of the total thickness of the VR device housing 100, and the width reaches the bridge of the nose, and the measured volume is 47% of the total volume of the VR device housing 100.

Carry out weight detection to VR equipment housing 100 and pure PC material shell of this embodiment preparation respectively, the testing result shows, compares in pure PC material shell, and this VR equipment housing 100 total weight has reduced 30%, and the front end quality is lighter, can reduce to the bridge of the nose oppression and the tendency that leans forward, and user's the comfort of wearing has obviously obtained the promotion. Meanwhile, through test detection, the tensile modulus of the VR device housing 100 is greater than 20GPa, which shows that the VR device housing 100 provided by the invention has better tensile modulus and longer service life.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a VR equipment housing, its characterized in that, VR equipment housing includes main part shell, lid shell and inserts, lid shell lid fits the main part shell to enclose close form with the installation space of inserts looks adaptation, the inserts is located in the installation space, the inserts includes at least one deck aerogel sandwich layer.

2. The VR device housing of claim 1, wherein the aerogel core has a density of 0.0355g/cm³-0.2g/cm³(ii) a And/or the thickness of the aerogel core layer is 0.4mm-1.6 mm.

3. The VR device housing of claim 1, wherein the aerogel core is formed from at least one of a carbon aerogel, a silicon aerogel, and an aerogel-based porous foam.

4. The VR device housing of claim 1, wherein the insert further comprises a bi-directional fiber prepreg layer disposed on a surface of the aerogel core layer.

5. The VR device housing of claim 4, wherein the bi-directional fiber prepreg layer has an areal density of 70g/m²-300g/m²(ii) a And/or the presence of a gas in the gas,

the thickness of the bidirectional fiber prepreg layer is 40-160 μm.

6. The VR device housing of claim 4, wherein the fibers in the bi-directional fiber prepreg layer are selected from at least one of carbon fibers, glass fibers, basalt fibers, and aramid fibers.

7. The VR device housing of claim 4, wherein the aerogel core layer is one layer and the bi-directional fiber prepreg layer is two layers, and two of the bi-directional fiber prepreg layers are disposed on two surfaces of the aerogel core layer, respectively.

8. The VR device housing of any of claims 1-7, wherein the insert has a density of 0.5g/cm³-0.6g/cm³(ii) a And/or the presence of a gas in the gas,

the thickness of the insert is 40% to 80% of the total thickness of the VR device housing; and/or the presence of a gas in the gas,

the insert has a volume that is 20% to 60% of a total volume of the VR device housing.

9. The VR device housing of any of claims 1-7, wherein the housing body is formed from at least one of polycarbonate, polyamide, polypropylene, and propylene-butadiene-styrene copolymer.

10. A method of making a VR device housing, comprising the steps of:

11. The method of making a VR device housing of claim 10, wherein the step of making the insert includes:

12. The method of claim 11, wherein the bi-directional fiber prepreg is prepared by impregnating a bi-directional woven fiber layer in a prepreg glue solution, and the prepreg glue solution is at least one of an epoxy resin glue solution, a phenolic resin glue solution, and an unsaturated polyester resin glue solution.

13. The method of making a VR device housing of claim 11, wherein the step of laying down bi-directional fiber prepreg on the surface of the aerogel core layer to obtain a preform comprises:

14. A VR device, comprising the VR device housing of any one of claims 1 to 9.