CN212343813U

CN212343813U - Shell structure for mobile communication equipment

Info

Publication number: CN212343813U
Application number: CN202020703894.1U
Authority: CN
Inventors: 李杭喜
Original assignee: Fujian Minwei Technology Co ltd
Current assignee: Fujian Minwei Technology Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-01-12
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a shell structure that action communication equipment used, main shell structure see through will contain the impregnation fibre layer and go into mould to forming die in, through the thick forming of heating, and have the second change of Y direction on the X-Z face and have the indent form wall structure of the first change of X direction on the Y-Z face, make the opening broad width of casing be less than contain the distance of impregnation fibre lateral wall inner face.

Description

Shell structure for mobile communication equipment

Technical Field

The present invention relates to a housing structure, and more particularly to a housing structure for a mobile communication device.

Background

Referring to fig. 1A, a conventional mobile phone has front and rear shells, a conventional shell 10 is mainly formed to have a concave opening 11, the shell 10 has a bottom wall 12 opposite to the opening 11 and a sidewall 13 connecting the opening 11 and the bottom wall 12; it should be noted that, as shown in fig. 1B, the conventional process for manufacturing the shell 10 generally requires a forming step with a forming mold, defining that two opposite sides of the opening 11 of the concave shell 10 have a width W and the inner surfaces 131 of the two opposite sides of the sidewall 13 have a distance D, so that the sidewall 13 of the shell 10 must be formed into a vertical shell shape to make the width W of the opening 11 of the shell 10 have a length equivalent to the distance D of the sidewall 13 in order to facilitate the demolding from the forming mold.

At present, the 3C products are quite diversified, and how to attract consumers with a design appearance becomes one of the keys affecting the sales volume, and although there is a design change that is extended by product designers to the line form of the combination of the side wall 13 and the bottom wall 12 of the housing 10, after considering the reduction of the manufacturing cost, the housing has a housing form with an opening width smaller than the maximum distance Dmax of the side wall, and the problem of difficulty in demolding results in that the side wall 13 of the housing 10 in the prior art is still not in the aforementioned upright housing wall form, which results in the limitation of the design of the housing 10, so that the conventional housing has a space to be improved.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide a housing structure for mobile communication equipment, which mainly uses a fiber layer containing resin as a molding material of a housing, and cooperates with a molding mold composed of an elastic inner mold and a hard outer mold to make the opening width of the housing smaller than the distance between the inner surfaces of the side walls of the impregnated fiber, so as to achieve the purpose of forming the side walls of the impregnated fiber in a concave shape in the housing.

To achieve the above object, according to the present invention, there is provided a housing structure for a mobile communication device, adapted to be used with a hard outer mold and an elastic inner mold capable of being engaged with the hard outer mold, the housing structure for a mobile communication device comprising:

the shell is provided with a concavely-formed impregnated fiber space, the concave direction of the impregnated fiber space is the Z direction, the shell is formed into an impregnated fiber bottom wall at the bottom of the impregnated fiber space, the impregnated fiber bottom wall is formed into an X direction and a Y direction perpendicular to the X direction, impregnated fiber side walls are formed on the peripheral sides of the impregnated fiber bottom wall, the impregnated fiber side walls are matched with the elastic inner mold through the hard outer mold, and the impregnated fiber side walls are formed into a concave shape wall surface structure which has a second change of the Y direction on an X-Z surface and a first change of the X direction on a Y-Z surface.

Preferably, an opening is defined around the fiber-impregnated sidewall of the housing, and the circumference of the opening has a width at two opposite sides of the housing, and the wall surfaces of the fiber-impregnated sidewall have a maximum distance therebetween, wherein the maximum distance is greater than the width.

Accordingly, the novel characteristic is that the shell is formed to contain the impregnated fiber side wall structure, so that various effects can be achieved, and by means of the matching use of the elastic inner mold and the hard outer mold, the problem that the shell manufacturing process in the prior art is limited by the demolding step is broken through, and the shell with the concave side wall can be formed really and quickly.

In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described below. And will be described in detail with reference to the accompanying drawings.

Drawings

FIG. 1A is a perspective view of a housing according to the prior art;

FIG. 1B is a schematic diagram of a mold for molding a housing according to the prior art;

FIG. 2 is a cross-sectional view of an embodiment of the present invention;

FIG. 3 is a flow chart illustrating a method for manufacturing a housing with a concave sidewall according to an embodiment of the present invention;

FIG. 4 is a schematic view illustrating a step of molding a fiber-impregnated layer according to the present invention;

fig. 5 is a schematic diagram of a mold closing structure according to the present invention;

FIG. 6 is a schematic view of a thermoforming step in accordance with the present novel implementation;

fig. 7 is a schematic diagram of the demolding step of the present novel implementation.

Detailed Description

The foregoing and other features and advantages of the invention will be apparent from the following, more particular description of embodiments of the invention, as illustrated in the accompanying drawings.

Referring to fig. 2 to 7, an outer shell structure for a mobile communication device according to the present invention is suitable for matching a hard outer mold 30 and an elastic inner mold 40 capable of matching with the hard outer mold 30, wherein:

the housing 20 is made of fiber material, and is formed by molding the impregnated fiber layer 2 into a mold where the hard outer mold 30 and the elastic inner mold 40 are closed, and heating to a high thickness. Referring to fig. 2, the housing 20 is formed by extruding and concavely forming an impregnated fiber space 201 for the core 41 of the elastic inner mold 40, the direction of the concave of the impregnated fiber space 201 is defined as Z direction, the housing 20 is formed by forming an impregnated fiber bottom wall 21 at the bottom of the impregnated fiber space 201, the impregnated fiber bottom wall 21 is formed on an X-Y plane formed by X direction and Y direction perpendicular to the X direction, an impregnated fiber side wall 22 is formed on the periphery of the impregnated fiber bottom wall 21, the impregnated fiber side wall 22 is formed by matching the hard outer mold 30 with the elastic inner mold 40, and is formed into a concave shape wall surface structure having a second variation Δ Y in the Y direction on the X-Z plane and a first variation Δ X in the X direction on the Y-Z plane; specifically, in the present embodiment, the impregnated-fiber side wall 22 of the housing 20 is provided with an opening 23 around the periphery thereof, the opening 23 communicates with the impregnated-fiber space 201, the peripheral edges of the opening 23 have a width W therebetween, and the wall surfaces of the impregnated-fiber side wall 22 have a maximum distance Dmax therebetween, which is greater than the width W of the opening 23.

A method for manufacturing the housing structure for the mobile communication device is further described.

Referring to fig. 2 and 3 in conjunction with fig. 4 and 7, the present invention provides a preferred embodiment of a method for manufacturing a housing structure for a mobile communication device, the method mainly includes forming a fiber-impregnated sidewall 22 of a housing 20 into a concave structure, the method includes (a) a hard outer mold manufacturing step S1, (b) an elastic inner mold manufacturing step S2, (c) an impregnated fiber layer molding step S3, (d) a thermoforming step S4, and (e) a demolding step S5, wherein:

(a) hard outer mold manufacturing step S1: a hard block is taken to be concavely provided with a mold cavity 31, the concave direction of the mold cavity 31 is the Z direction, the bottom surface 312 of the mold cavity 31 is a surface formed by the X direction and the Y direction which are mutually perpendicular, the mold cavity 31 is provided with a wall surface 313 formed around the bottom surface 312, the wall surface 313 has a second change delta Y of the Y direction on the X-Z surface and a first change delta X of the X direction on the Y-Z surface, so as to manufacture the hard outer mold 30 of which the wall surface 313 of the mold cavity 31 is formed into a curved surface structure; specifically, the wall 313 of the cavity 31 is surrounded by a cavity 311, the width W1 is between the peripheries of the cavity 311 at two opposite sides of the cavity 31, and the maximum distance D1 is between the wall 313, and the maximum distance D1 is greater than the width W1 of the cavity 311.

(b) Elastic inner mold manufacturing step S2: taking an elastic block to form a mold core 41 corresponding to the shape of the mold cavity 31 of the hard outer mold 30 to manufacture a forming mold by combining the elastic inner mold 40 and the hard outer mold 30; in the present embodiment, the elastic inner mold 40 is made of a material having high elasticity, such as rubber, plastic, or foam.

(c) Step S3 of molding the impregnated fiber layer: firstly, the impregnated fiber layer 2 is attached to the bottom surface 312 and the wall surface 313 of the mold cavity 31, as shown in fig. 5, the mold core 41 of the elastic inner mold 40 is inserted to press the impregnated fiber layer 2 to firmly adhere to the bottom surface 312 and the wall surface 313 of the mold cavity 31; specifically, the impregnated fiber layer 2 is formed by laminating a plurality of fiber layers, which are pre-impregnated with a bonding adhesive, and may be made of a fiber material such as carbon fiber or glass fiber.

(d) A thermoforming step S4: referring to fig. 5, when the mold core 41 of the elastic inner mold 40 is placed into the mold cavity 31 of the hard outer mold 30, the elastic inner mold 40 is pressed against the impregnated fiber layer 2 preset in the mold cavity 31, and at this time, the elastic inner mold 40 having elasticity cannot be tightly fitted with the hard outer mold 30 to form a gap S, so in this step, as shown in fig. 6, a vacuum adhesive film 50 is sleeved on the outer surface of the forming mold and vacuum is drawn, so that the hard outer mold 30 is tightly fitted with the elastic inner mold 40, and the elastic inner mold 40 is pressed against the impregnated fiber layer 2, so that the elasticity of the elastic inner mold 40 is reduced, the impregnated fiber layer 2 is shaped into the impregnated fiber sidewall 22 having a concave shape by the hard outer mold 30, and then the impregnated fiber layer 2 is heated and hardened to form the elastic shell product 200.

(e) A mold release step S5: referring to fig. 7, the vacuum adhesive film 50 is removed, the elastic inner mold 40 is taken out from the mold cavity 31 of the hard outer mold 30, and the shell product 200 is taken out by elastic deformation to form the shell 20 with a concave shape and impregnated fiber side wall 22.

The above description is illustrative of the main steps of the method of the present invention, and the efficacy of the present invention is described below.

First, the problem that the prior art housing process is limited by the demolding step is broken through, and the purpose of forming various structures on the impregnated fiber side wall 22 of the housing 20 is achieved.

Secondly, because the elastic inner mold 40 has elastic properties, it can be tightly closed and then extruded with the impregnated fiber layer 2 to reduce elasticity, and the hard outer mold 30 is matched to shape the impregnated fiber layer 2, and after removing the vacuum adhesive film 50, it still recovers high elasticity to facilitate deformation and demolding, so as to provide a shell 20 with a concave impregnated fiber sidewall 22.

In summary, the above-mentioned embodiments and drawings are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the present invention.

Claims

1. The shell structure for the mobile communication equipment is characterized by comprising a shell, a fiber impregnation space with a concave molding, wherein the fiber impregnation space is in the Z direction, the shell forms a fiber impregnation bottom wall at the bottom of the fiber impregnation space, the fiber impregnation bottom wall is formed in the X direction and the Y direction perpendicular to the X direction, a fiber impregnation side wall is formed on the periphery of the fiber impregnation bottom wall, the fiber impregnation side wall is in butt joint with the elastic inner mold through the hard outer mold and is formed into a concave shape wall surface structure which has a second change of the Y direction on the X-Z surface and a first change of the X direction on the Y-Z surface.

2. The housing structure of claim 1, wherein the housing has openings surrounded by the fiber-impregnated sidewall, the openings have a wide width between the peripheries thereof, and the walls of the fiber-impregnated sidewall have a maximum distance therebetween, the maximum distance being greater than the wide width.