WO2021047082A1

WO2021047082A1 - Terminal housing and manufacturing method therefor, and terminal device

Info

Publication number: WO2021047082A1
Application number: PCT/CN2019/123973
Authority: WO
Inventors: 廖春阳
Original assignee: 上海展扬通信技术有限公司
Priority date: 2019-09-10
Filing date: 2019-12-09
Publication date: 2021-03-18
Also published as: CN110572505A

Abstract

Disclosed are a terminal housing and a manufacturing method therefor, and a terminal device. The terminal housing comprises a decorative member and a housing body, wherein the decorative member and the housing body are both plastic members, and the terminal housing is of an integrally formed structure. In the technical solution of the present application, the decorative member has a decorative role in the housing body; and the terminal housing is of an integrally formed structure, and in the process of assembling or disassembling a complete machine, no relative displacement occurs between the decorative member and the housing body, thereby controlling the risk of losing or damaging parts.

Description

Terminal shell and its processing method and terminal equipment To

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on September 10, 2019, the application number is 201910854355.X, and the invention title is "terminal housing and its processing method and terminal equipment", the entire content of which is incorporated by reference Incorporate in application

Technical field

This application relates to the technical field of electronic product parts processing, and in particular to a terminal housing, a processing method thereof, and terminal equipment.

Background technique

At present, in the manufacturing process of mobile phones, the fingerprint decoration and the back cover are manufactured separately, and subsequent assembly will penetrate the fingerprint decoration through the back cover to highlight the embellishment and craft effects; however, in the above manufacturing method, the fingerprint decoration and the back cover are still As a separate individual, there is a risk of component damage when the whole machine is disassembled and tested; and in order to ensure the reliability of the assembly of the independent fingerprint decoration and the rear shell, it is necessary to increase the corresponding connection structure, which will increase the thickness of the whole machine; In addition, due to the limitation of the processing technology, there will be a size error between the fingerprint decoration and the rear case, which will cause a gap between the fingerprint decoration and the rear case after assembly, resulting in appearance defects.

Therefore, it is necessary to provide a new terminal housing and its processing method and terminal equipment to solve the above technical problems.

Application content

The main purpose of this application is to provide a terminal housing and its processing method and terminal equipment, which aims to solve the increase in the thickness of the whole machine and the gap between the fingerprint decoration and the rear case caused by the separate manufacture and assembly of the fingerprint decoration and the rear case. And there is a problem of the risk of component damage during disassembly test.

In order to achieve the above objective, the present application proposes a terminal housing, which includes a decorative part and a housing body, the decorative part and the housing body are both plastic parts, and the terminal housing is an integrally formed structure.

Optionally, the decorative element is provided with a decorative surface, the decorative surface is provided with a plurality of protrusions, and the plurality of protrusions cover the decorative surface to form a texture on the decorative element.

Optionally, the protruding portion includes a first wall surface, an upper flat surface, and a second wall surface that are connected in sequence, and the first wall surface and the second wall surface are respectively connected to the decorative surface.

Optionally, both the first wall surface and the second wall surface are mirror surfaces.

Optionally, there is a second included angle between the first wall surface and the decorative surface, and the size of the second included angle is at least 30° and not more than 60°; the second wall surface and the decorative surface There is a third included angle between them, and the size of the third included angle is at least 30° and not more than 60°.

Optionally, the decorative piece is provided with a decorative arc, and the decorative arc is smoothly connected with the surface of the shell body.

Optionally, the decoration is one or more of a fingerprint decoration, a camera decoration, and a logo decoration.

In addition, the present application also provides a terminal device, which includes the terminal housing as described above.

In addition, this application also provides a method for processing a terminal housing, which is used to process the terminal housing as described above, and the following steps are involved:

Making shell molds;

Make decorative molds;

Assembling the decorative part mold to a preset position on the shell mold to obtain a back cover mold;

Injection of the back cover mold to obtain a terminal housing.

In the technical solution of the present application, the terminal housing includes a decorative part and a housing body. The decorative part is used to provide a decorative effect on the housing body. The terminal housing is an integral structure. During the assembly or disassembly of the whole machine, the decorative part There will be no relative displacement between the shell body and the shell body to control the risk of component loss or damage; and there is no connection gap between the decorative part and the shell body, which enhances the integrity of the terminal shell; and there is no gap between the decorative part and the shell body. It is necessary to add an additional connection structure to control the thickness of the whole machine and enhance the grip feel.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on the structure shown in these drawings.

FIG. 1 is a schematic structural diagram of a terminal housing in an embodiment of the application;

FIG. 2 is a schematic diagram of the structure of a decorative element in an embodiment of the application;

Fig. 3 is a flowchart of an embodiment of a method for processing a terminal housing in this application.

Attached icon number description:

标号 Label	名称 Name	标号Label	名称 Name
100100	终端壳体 Terminal housing	200200	壳本体 Shell body
300300	装饰件 Garnish	310 310	装饰面 Decorative surface
320 320	凸起部Bulge	321 321	第一壁面 First wall
322 322	上平面 Upper plane	323 323	第二壁面 Second wall

The realization, functional characteristics, and advantages of the purpose of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

It should be noted that all directional indicators (such as up, down, left, right, front, back...) in the embodiments of this application are only used to explain the difference between components in a specific posture (as shown in the accompanying drawings). If the relative position relationship, movement situation, etc. change, the directional indication will change accordingly.

In addition, the descriptions related to "first", "second", etc. in this application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless otherwise clearly specified and limited, the terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or a whole; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal communication between two components or an interaction relationship between two components, unless specifically defined otherwise. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood according to specific circumstances.

In addition, the technical solutions between the various embodiments of the present application can be combined with each other, but they must be based on what can be achieved by a person of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that the combination of such technical solutions It does not exist and is not within the scope of protection required by this application.

As shown in FIG. 1, in a specific embodiment of the present application, the terminal housing 100 includes a decorative element 300 and a shell body 200. The decorative element 300 and the shell body 200 are both plastic parts, and the terminal shell 100 is an integral structure. In the above technical solution, the decorative element 300 is used to provide a decorative effect on the shell body 200, and the terminal housing 100 is an integrally formed structure. During the assembly or disassembly of the whole machine, there will be no occurrence between the decorative element 300 and the shell body 200. The relative displacement controls the risk of component loss or damage; and there is no connection gap between the decorative element 300 and the shell body 200, preventing the risk of the decorative element 300 falling off during use, and enhancing the integrity of the terminal housing 100; and decoration There is no need to add an additional connection structure between the piece 300 and the shell body 200, which can control the thickness of the whole machine and enhance the grip feeling.

Wherein, the decorative element 300 is provided with a decorative surface 310, and the decorative surface 310 is provided with a plurality of protrusions 320, and the plurality of protrusions 320 cover the decorative surface 310 to form a texture on the decorative element 300. The difference in reflection effect between the protrusion 320 and the decorative surface 310 makes the decorative element 300 have a decorative effect, and at the same time, the difference between the decorative element 300 and the shell body 200 can be increased. The texture can be one of CD texture, diamond texture, and reticulated texture.

Specifically, the protruding portion 320 includes a first wall surface 321, an upper flat surface 322, and a second wall surface 323 that are connected in sequence, and the first wall surface 321 and the second wall surface 323 are respectively connected to the decorative surface 310. The first wall surface 321, the upper flat surface 322 and the second wall surface 323 form different reflection angles to obtain a more beautiful halo effect. The first wall surface 321 and the second wall surface 323 are preferably mirror surfaces to improve high reflectivity and enhance Reflective light.

More specifically, there is a second included angle between the first wall surface 321 and the decorative surface 310, and the size of the second included angle is at least 30° and not more than 60°; there is a third angle between the second wall surface 323 and the decorative surface 310. The included angle, the size of the third included angle is at least 30° and not more than 60°. That is, the upper plane 322 is connected to the decorative surface 310 through the first wall surface 321 and the second wall surface 323, and the angle between the first wall surface 321 and the second wall surface 323 and the decorative surface 310 is 30° to 60° to enhance the visual contrast.

In another embodiment, the decorative surface 310 is provided with a decorative plane, a first included angle exists between the decorative plane and the surface of the shell body 200, and the first included angle is at least 0° and not more than 85°. Avoid that the angle of the connection between the plane and the shell body 200 is close to a right angle to form a cut feeling.

In other embodiments, the decorative surface 310 is provided with a decorative arc, and the decorative arc is smoothly connected to the surface of the shell body 200. The surface of the decorative element 300 and the shell body 200 are smoothly connected to enhance the visual integration of the decorative surface 310 and the shell body 200. At the same time, during use, when the user touches the decorative surface 310 and the shell body 200, there will be no obvious separation and a sense of touch. Smooth and improve user experience.

In a preferred embodiment, there is a gap between any two adjacent protrusions 320, and the gap size is 0.7 mm to 0.9 mm. According to the partial area of the decorative part 300, all the filling is done. Through the reflection angle of the side of the grain surface, the staggered arrangement with the pitch produces a 360-degree halo effect without dead angle.

Wherein, the decoration 300 is one or more of a fingerprint decoration, a camera decoration, and a logo decoration. The fingerprint decoration is used to limit the recognition area of the fingerprint recognition module and to decorate the terminal housing 100. The terminal housing 100 is used to cover the battery side of the electronic device to prevent dust and protect internal components. . The decorative element 300 can also be used for the decoration of the outer ring of the camera; the decorative element 300 can also achieve a decorative effect on the shell body 200, such as a brand logo, geometric shape decoration, and the like.

The present application also provides a terminal device. Since the terminal device includes the terminal housing 100 as described above, the terminal device has all the beneficial effects of the terminal housing 100, which will not be repeated here. Specifically, the terminal device may be a mobile phone, a tablet computer, or the like.

In addition, as shown in FIG. 2, the present application also provides a method for processing a terminal housing, which is used for processing the above terminal housing. The processing method for the terminal housing includes the following steps:

S100. Making shell molds;

Make decorative molds;

The shell mold and the decorative part mold are made separately. When the surface of the decorative part has a decorative texture, the precision of the decorative part requires higher processing accuracy. Making the shell mold and the decorative part mold separately can prevent the decorative part mold from meeting the accuracy. When the precision of the shell mold is too high, the overall processing time is long, the processing is difficult, or when the precision of the shell body mold is met, the precision of the decorative part mold is insufficient.

In step S100, a shell mold is made; the following steps are included before making a decorative part mold:

Obtain a three-dimensional model of the terminal housing;

Carry out 3D division of the three-dimensional model of the terminal shell, and split it into a decorative part model and a shell model.

Obtain the three-dimensional size data of the terminal shell through the original design drawings or measurement of the actual object, use the three-dimensional drawing software to draw the three-dimensional model of the terminal shell, and then split the drawn three-dimensional model of the terminal shell into the decorative part model and the shell The model has two parts. Then a shell mold is made according to the shell model, and a decorative part mold is made according to the decorative part model.

S200. Assemble the decorative part mold to the preset position on the shell mold to obtain the back cover mold.

The assembled back cover mold forms an injection cavity. The shape of the injection cavity is consistent with the three-dimensional model data of the terminal shell. Injection molding of the back cover mold can form the terminal shell at one time, compared to processing the decorative parts and the shell separately. The terminal housing is obtained by post-assembly, which can avoid misalignment of hole positions caused by assembly errors, or uneven assembly gaps.

Specifically, the decorative part mold is cut to form an installation part, and the installation part is embedded in a preset position on the shell mold. That is, when processing the shell mold, reserve a mounting position on the shell mold; cut the decorative part mold into the shape to be assembled, and then the decorative part mold has a mounting part that matches the shape of the mounting position. Position matching realizes the assembly of the back cover mold to fix the decorative part mold in the preset position. The installation part and the installation position further ensure the accuracy of its position, avoiding the assembly of the whole machine from being unable to align with the corresponding module due to the change of the installation position. Case.

S300: Inject the back cover mold to obtain a terminal housing.

Add a preset amount of plastic materials to the beer machine, the beer machine heats the plastic materials to melt and plasticize, and then pressurize and inject the molten plastic into the back cover mold, wait for the back cover mold to cool, and finally open the mold to take out the terminal shell . Take out the terminal housing and close the mold again for the next injection processing cycle.

During the injection molding process, the molten plastic will adhere to the decorative part mold, and the terminal housing thus obtained is an integral piece, ensuring that there is no gap between the housing and the decorative part, and the connection is tight.

The plastic raw material can be either a thermoplastic material or a thermosetting material.

S400: Perform surface post-treatment on the terminal housing.

After injection molding the back cover mold to obtain the terminal housing. Perform surface post-treatment on the injection molded terminal housing to improve the surface quality of the finished terminal housing. The injection molded terminal shell has the overall shape of the terminal shell, but it has shortcomings in appearance or surface aesthetics. It is necessary to perform surface post-treatment on the terminal shell to ensure that the final finished product of the terminal shell is clean and comparable to other electronic products. The components are matched and the appearance is ornamental.

Performing surface post-treatment on the terminal housing may include cleaning and coloring the surface of the terminal housing.

Specifically, the corresponding coloring process may be performed separately for the decorative part and the housing, or the whole decorative part and the housing, that is, the terminal housing, may be colorized at the same time.

Different coloring processes are used to separately color the decorative part and the shell, which can obtain the decorative part and the shell with a clear boundary, which has more visual impact.

The same coloring process is used to color the decorative part and the shell at the same time, which can save processing time, and because there is no color boundary between the decorative part and the shell, the difficulty of the coloring process is reduced.

Since the decorative part mold is formed by electroforming, decorative patterns such as radial, concentric, wavy or irregular geometrical decorative textures can be processed on the surface of the inverted copperwork corresponding to the side of the decorative part to be observed. Compared with the prior art first decorating the blank of the decorative part, and then performing numerical control processing on the blank of the decorative part to form a decorative pattern, in this application, the decorative texture is directly formed on the decorative part mold, so that the decorative texture of the decorative part formed by injection molding has a higher Consistency, and the processing efficiency is more efficient. In addition, since the surface of the decorative piece has a decorative texture, there is still a difference in perception between the decorative piece and the shell after the coloring process, so that the decorative piece can be used to decorate the shell without damaging the integrity of the terminal shell.

Wherein, the coloring treatment process may be one or more of spraying coloring processing, true plating coloring processing, electroplating coloring processing, heat treatment coloring processing, and silk screen coloring processing. Spray coloring is suitable for coloring large-area workpieces, and the process is simple. The true plating color is to deposit a metal or non-metal film on the surface of the terminal housing by distillation or sputtering. In this way, a very thin surface coating can be obtained, and it has the outstanding advantages of fast speed and good adhesion.

The terminal housing can be cleaned before coloring,

Specifically, the cleaning treatment may include at least one of the following cleaning methods: acidic solution cleaning, alkaline solution cleaning, and clean water cleaning.

Since the surface of the terminal housing will produce some acidic liquid, alkaline liquid or oily impurities after the pre-processing, the surface acidic liquid, alkaline liquid, degreasing and impurity removal can be removed by the cleaning process. Which solution is used for cleaning? According to the properties of the liquid or impurities adhering to the surface of the terminal housing, for example, the terminal housing can be placed in an acidic liquid tank, an alkaline liquid tank, a clean water tank, etc., or the terminal housing can be selectively placed In at least one of the following acidic liquid tank, alkaline liquid tank and clean water tank.

Of course, since the terminal housing is formed by injection molding, more or less burrs are inevitably formed at the clamping gap of the terminal housing. Therefore, the terminal housing formed by injection molding can be deburred by grinding and deburring. Improve the overall appearance quality of the workpiece.

The above are only the preferred embodiments of this application, and do not limit the scope of the patent of this application. Any equivalent structural transformation made using the content of the description and drawings of this application under the inventive concept of this application, or directly/indirectly applied to other Related technical fields are included in the scope of patent protection of this application.

Claims

A terminal housing includes a decorative part and a shell body, the decorative part and the shell body are both plastic parts, and the terminal shell is an integrally formed structure.
The terminal housing according to claim 1, wherein the decorative part is provided with a decorative surface, the decorative surface is provided with a plurality of protrusions, and the plurality of protrusions cover the decorative surface to Textures are formed on the decorative part.
3. The terminal housing of claim 2, wherein the protruding portion comprises a first wall surface, an upper flat surface, and a second wall surface connected in sequence, and the first wall surface and the second wall surface are respectively connected with a decorative surface.
The terminal housing of claim 3, wherein the first wall surface and the second wall surface are both mirror surfaces.
The terminal housing of claim 3, wherein a second included angle exists between the first wall surface and the decorative surface, and the size of the second included angle is at least 30° and not more than 60°; so There is a third included angle between the second wall surface and the decorative surface, and the size of the third included angle is at least 30° and not more than 60°.
The terminal housing of claim 1, wherein the decorative element is provided with a decorative plane, a first included angle exists between the decorative plane and the surface of the shell body, and the size of the first included angle is at least 0° and not more than 85°.
5. The terminal housing of claim 1, wherein the decorative member is provided with a decorative arc surface, and the decorative arc surface is smoothly connected with the surface of the shell body.
8. The terminal housing according to any one of claims 1 to 7, wherein the decoration part is one or more of a fingerprint decoration part, a camera decoration part, and a logo decoration part.
A terminal device, wherein the terminal device comprises the terminal housing according to any one of claims 1 to 7.
A method for processing a terminal housing, used for processing the terminal housing according to any one of claims 1 to 8, including the following steps:

Making shell molds;

Make decorative molds;

Assembling the decorative part mold to a preset position on the shell mold to obtain a back cover mold;

Injection of the back cover mold to obtain a terminal housing.