CN107819911B

CN107819911B - Mobile terminal and cover plate thereof

Info

Publication number: CN107819911B
Application number: CN201711320562.4A
Authority: CN
Inventors: 穆思难
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-12-12
Filing date: 2017-12-12
Publication date: 2020-03-27
Anticipated expiration: 2037-12-12
Also published as: CN107819911A

Abstract

The invention relates to a cover plate which is used for covering a rear shell of a mobile terminal. The cover plate comprises a first surface and a second surface which are oppositely arranged, and the second surface is positioned on one side of the cover plate facing the rear shell. A plurality of sound holes are formed in the cover plate, penetrate through the first surface and the second surface and are arranged at intervals. The orthographic projection of the sound outlet holes on the main plane is at least partially overlapped with the orthographic projection of the telephone receiver of the mobile terminal on the main plane. The principal plane is a plane perpendicular to the thickness direction of the mobile terminal. In the cover plate, the projection of the plurality of sound outlet holes on the main plane is at least partially overlapped with the projection of the telephone receiver of the mobile terminal on the main plane, so that the sound of the telephone receiver can be transmitted out through the plurality of sound outlet holes. Because the aperture of the sound outlet hole can be made extremely small, the plurality of sound outlet holes can ensure the transmission of sound and prevent water or dust from entering the mobile terminal, thereby improving the waterproof and dustproof performance of the mobile terminal.

Description

Mobile terminal and cover plate thereof

Technical Field

The application relates to the technical field of mobile terminals, in particular to a mobile terminal and a cover plate thereof.

Background

A general mobile terminal includes a rear case and a cover plate covering the rear case. The cover plate is provided with a receiver hole, and water or dust easily enters the mobile terminal from the receiver hole.

Disclosure of Invention

The embodiment of the application provides a better mobile terminal of waterproof dustproof effect and apron thereof to solve above-mentioned problem.

A cover plate is used for covering a rear shell of a mobile terminal and comprises a first surface and a second surface which are oppositely arranged, wherein the second surface is positioned on one side of the cover plate facing the rear shell; a plurality of sound outlet holes are formed in the cover plate, penetrate through the first surface and the second surface and are arranged at intervals; the orthographic projection of the sound outlet holes on the main plane is at least partially overlapped with the orthographic projection of the telephone receiver of the mobile terminal on the main plane; the main plane is a plane perpendicular to the thickness direction of the mobile terminal.

In one embodiment, the cover plate comprises a body and a boss, the body and the boss are integrally formed, the second surface protrudes outwards to the side away from the first surface to form the boss, and the sound outlet hole penetrates through the boss.

In one embodiment, the boss is used for abutting against a receiver of the mobile terminal, and the ratio of the maximum height of the boss from the first surface to the thickness of the body is 1.2-5.

In one embodiment, the cover plate further includes an ink layer disposed on the second surface, the ink layer is located on the periphery of the body, and the ink layer defines a window area.

In one embodiment, the ink layers include a first ink layer and a second ink layer, the first ink layer is located between the body and the second ink layer, and the lightness of the first ink layer is greater than the lightness of the second ink layer.

In one embodiment, the body is a flat glass or a curved glass.

In one embodiment, the orthographic projection of the sound outlet hole on the main plane is circular or polygonal, and the maximum width of the sound outlet hole is 60-900 micrometers.

In one embodiment, the width of the orthographic projection of the sound outlet holes on the main plane is larger than or equal to the width of the orthographic projection of the telephone receiver on the main plane.

The mobile terminal comprises a rear shell and the cover plate, wherein the cover plate is covered on the rear shell, and the cover plate is fixedly connected with the rear shell.

In one embodiment, the rear shell includes a main body portion and a flange integrally formed on the main body portion, the flange is disposed on the periphery of the cover plate, and the cover plate is fixedly connected to the main body portion.

In one embodiment, the main body portion has a supporting surface, a dispensing layer is arranged on the supporting surface, and the cover plate is fixedly connected with the main body portion through the dispensing layer.

According to the mobile terminal and the cover plate thereof, the cover plate is provided with the plurality of sound outlet holes, the sound outlet holes penetrate through the first surface and the second surface of the cover plate, the projection of the plurality of sound outlet holes on the main plane is at least partially overlapped with the projection of the telephone receiver of the mobile terminal on the main plane, and the sound of the telephone receiver can be transmitted out through the plurality of sound outlet holes. Because the aperture of the sound outlet hole can be made extremely small, the plurality of sound outlet holes can ensure the transmission of sound and prevent water or dust from entering the mobile terminal, thereby improving the waterproof and dustproof performance of the mobile terminal.

Drawings

In order to more clearly illustrate the embodiments of the present application 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 application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a mobile terminal in one embodiment;

FIG. 2 is a front view of the mobile terminal shown in FIG. 1;

FIG. 3 is an enlarged schematic view of an embodiment of the mobile terminal shown in FIG. 2 at A;

FIG. 4 is a cross-sectional view taken along B-B of an embodiment of the mobile terminal shown in FIG. 2;

FIG. 5 is a cross-sectional view of a cover plate taken along line B-B in another embodiment of the mobile terminal shown in FIG. 2;

FIG. 6 is a cross-sectional view taken along B-B of yet another embodiment of the mobile terminal shown in FIG. 2;

fig. 7 is a cross-sectional view taken along B-B of yet another embodiment of the mobile terminal shown in fig. 2.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As used herein, a "mobile terminal" (or simply "terminal") includes, but is not limited to, a device that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). Mobile terminals that are arranged to communicate over a wireless interface may be referred to as "wireless mobile terminals", "wireless terminals", and/or "communication terminals". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver.

Referring to fig. 1 and 2, in one embodiment, the mobile terminal 10 is a handset. The mobile terminal 10 includes a cover plate 100 and a rear case 200, wherein the cover plate 100 is covered on the rear case 200, and the cover plate 100 is fixedly connected with the rear case 200. Referring to fig. 3 and 4 together, in an embodiment, the mobile terminal 10 further includes a camera (not shown) and a receiver 300, a receiving space is formed between the cover plate 100 and the rear case 200, and the camera and the receiver 300 are received in the receiving space. In an embodiment, the mobile terminal 10 further includes a display 400, the display 400 is accommodated in the accommodating space, and the cover plate 100 covers the display 400 to protect the display 400. In one embodiment, the display screen 400 may be used to display information and may provide an interactive interface for a user. In one embodiment, the Display screen 400 is an LCD (Liquid Crystal Display) screen for displaying information, and the LCD screen may be a TFT (Thin Film Transistor) screen, an IPS (In-Plane Switching) screen, or an SLCD (Liquid Crystal Display for tiled Display). In another embodiment, the display screen 400 employs an OLED (Organic Light-Emitting display) screen for displaying information, and the OLED screen may be an AMOLED (Active Matrix Organic Light-Emitting Diode) screen or a Super AMOLED (Super Active Matrix Organic Light-Emitting Diode) screen or a Super AMOLED Plus (Super Active Matrix Organic Light-Emitting Diode Plus) screen. In other embodiments, the mobile terminal 10 may be a tablet or the like.

In one embodiment, the rear case 200 is a metal material such as an aluminum alloy. The rear case 200 includes a main body 210 and a flange 220 integrally formed on the main body 210, the flange 220 is disposed on the outer periphery of the cover plate 100, a half-pack structure is formed for the cover plate 100, and the cover plate 100 is fixedly connected to the main body 210. Specifically, in the embodiment shown in fig. 4, a dispensing layer 500 is disposed between the cover plate 100 and the main body portion 210, the dispensing layer 500 is made of an adhesive material, and the cover plate 100 and the rear case 200 are fixedly connected by the dispensing layer 500. The fixed connection by the dispensing method is not only beneficial to the fixed connection of the cover plate 100 and the rear shell 200, but also beneficial to the reduction of the width of the frame of the rear shell 200. Further, in an embodiment, the main body 210 and the flange 220 form a step-shaped structure, the main body 210 has a supporting surface 211, the dispensing layer 500 is located on the supporting surface 211, and the dispensing layer 500 is located between the cover plate 100 and the supporting surface 211 of the main body 210. Referring again to fig. 1, in an embodiment, a rectangular coordinate system is established with the width direction of the mobile terminal 10 as the x-axis, the thickness direction as the y-axis, and the length direction as the z-axis. Referring to fig. 4, a reference plane (not shown) perpendicular to the width direction of the mobile terminal 10 is made, the reference plane being perpendicular to the x-axis. The upper edge of the orthographic projection of the cover plate 100 on the reference plane is higher than the upper edge of the orthographic projection of the flange 220 on the plane, i.e. the cover plate 100 at least partially protrudes above the flange 220. With the above-described structure, the flange 220 of the rear case 200 can provide excellent protection to the cover plate 100, and the mobile terminal 10 can obtain a good appearance. In other embodiments, the rear housing 200 may be made of ceramic, glass, or plastic.

In one embodiment, the cover plate 100 is made of glass or sapphire. The cover plate 100 includes a first surface 110 and a second surface 120 disposed oppositely, and the second surface 120 is located on a side of the cover plate 100 facing the rear case 200. The cover plate 100 is provided with a plurality of sound outlet holes 130 corresponding to the receivers 300, and the sound outlet holes 130 are distributed near the end of the cover plate 100. Further, the sound outlet holes 130 are distributed in the middle region of the cover plate 100 in the width direction. The sound emitting hole 130 penetrates the first surface 110 and the second surface 120, and a plurality of sound emitting holes 130 are spaced apart. In one embodiment, a plane perpendicular to the thickness direction of the mobile terminal 10 is made, and the plane is taken as a main plane (not shown) perpendicular to the y-axis. An orthogonal projection of the plurality of sound outlet holes 130 on the main plane is at least partially overlapped with an orthogonal projection of the receiver 300 of the mobile terminal 10 on the main plane. The sound of the receiver 300 can pass through the sound outlet hole 130 and be transmitted from the inside of the mobile terminal 10 through the sound outlet hole 130.

In one embodiment, the orthographic projection of the sound emitting hole 130 on the main plane is a circle or a polygon, and the maximum width of the sound emitting hole 130 is 60 micrometers to 900 micrometers. Specifically, when the orthographic projection of the sound emitting hole 130 on the main plane is a circle, the maximum width of the sound emitting hole 130 is the diameter of the sound emitting hole 130, and the diameter ranges from 60 micrometers to 900 micrometers. When the orthographic projection of the sound outlet hole 130 on the main plane is a polygon, the maximum width of the sound outlet hole 130 is the maximum width of the polygon, and the width ranges from 60 micrometers to 900 micrometers. Taking the orthographic projection of the sound outlet 130 on the main plane as a rectangle as an example, the maximum width of the sound outlet 130 is the length of a diagonal line of the rectangle, and the length of the diagonal line is 60 micrometers to 900 micrometers. When the maximum width of the sound outlet 130 is within the above range, the sound of the receiver 300 can be ensured to be transmitted, the sound quality of the sound can be ensured, and the structural strength of the cover plate 100 can be prevented from being weakened excessively. Since the maximum width of the sound outlet hole 130 is small, when a water droplet is attached to the sound outlet hole 130, the surface tension of the water droplet is sufficient to prevent the water droplet from entering the sound outlet hole 130. Since the maximum width of the sound outlet hole 130 is small, it is difficult for dust particles to enter the sound outlet hole 130. In one embodiment, the width of the orthographic projection of the sound outlet holes 130 on the main plane is greater than or equal to the width of the orthographic projection of the telephone receiver 300 on the main plane. The above arrangement facilitates the plurality of sound output holes 130 to sufficiently cover the surface of the receiver 300 for sound output, thereby facilitating the transmission of sound and the sound quality of sound to be secured.

In one embodiment, the sound outlet 130 may be obtained by combining a laser processing method and a chemical processing method. Specifically, the approximate contour of the sound hole 130 is first processed by removing the material with laser, and then the sound hole 130 is further processed by combining a chemical processing method, such as a chemical etching method, so that the shape and the maximum width of the sound hole 130 meet the requirements.

In the cover 100, the cover 100 is provided with a plurality of sound outlet holes 130, the sound outlet holes 130 penetrate through the first surface 110 and the second surface 120 of the cover 100, the projection of the plurality of sound outlet holes 130 on the main plane is at least partially overlapped with the projection of the receiver 300 of the mobile terminal 10 on the main plane, and the sound of the receiver 300 can be transmitted through the plurality of sound outlet holes 130. Since the aperture of the sound outlet hole 130 can be made very small, the plurality of sound outlet holes 130 can ensure the transmission of sound and prevent water or dust from entering the inside of the mobile terminal 10, so that the waterproof and dustproof performance of the mobile terminal 10 can be improved.

Referring to fig. 4, in an embodiment, the cover plate 100 may include a body 140 and a boss 150, the body 140 and the boss 150 are integrally formed, the second surface 120 protrudes outward away from the first surface 110 to form the boss 150, and the sound outlet 130 penetrates through the boss 150. In one embodiment, the boss 150 may abut against the receiver 300 of the mobile terminal 10 when the cover plate 100 is covered on the rear case 200. In one embodiment, the boss 150 has a substantially racetrack-shaped cross section, and the sound holes 130 are all located in the boss 150. In one embodiment, the minimum width of the sound emitting holes 130 distributed near the edge of the boss 150 from the edge of the boss 150 is 10 to 20 microns. When the minimum width of the sound outlet hole 130 from the edge of the boss 150 is within the above range, the structural strength of the boss 150 may be prevented from being excessively weakened, so that the boss 150 may be prevented from being cracked, and it is advantageous to ensure the sound quality of the receiver 300. Further, the shape of the cross section of the boss 150 may be matched with the shape of the sound emitting surface of the receiver 300, and the side of the boss 150 facing the rear case 200 may press the surface of the receiver 300. The boss 150 is tightly attached to the sound outlet surface of the receiver 300 without any gap, so that the sound of the receiver 300 can be prevented from leaking from the connection gap between the cover plate 100 and the receiver 300, and the sound quality of the receiver 300 can be ensured not to be affected.

In one embodiment, the ratio of the maximum height of the projection 150 from the first surface 110 to the thickness of the body 140 is 1.2-5. Further, in one embodiment, the ratio of the maximum height of the boss 150 from the first surface 110 to the thickness of the body 140 is 2. With the structure, the structural strength of the cover plate 100 at the position of the sound outlet 130 can be strengthened, and the area of the cover plate 100 provided with the sound outlet 130 is prevented from cracking. When the ratio of the maximum height of the boss 150 from the first surface 110 to the thickness of the cover plate 100 is within the above range, the boss 150 is also favorable for pressing the receiver 300 of the mobile terminal 10, and the thickness of the mobile terminal 10 can be prevented from increasing, thereby preventing the appearance of the mobile terminal 10 from being adversely affected.

Referring to fig. 4, in an embodiment, the cover plate 100 may further include an ink layer 600 disposed on the second surface 120, the ink layer 600 is located at the periphery of the body 140, and the ink layer 600 defines the window area. Specifically, the body 140 is transparent, the shape of the body 140 is substantially a rounded rectangle, and the body 140 has good light transmittance. The ink layer 600 is disposed on one side of the body 140, and the ink layer 600 defines a window area. When the display screen 400 is illuminated, a user may view information displayed by the display screen 400 through the window area. In one embodiment, the cover plate 100 is a flat glass, the processing cost of the flat glass is low, and the flat body 140 facilitates the processing of the ink layer 600. Referring to fig. 6 and 7, in another embodiment, the body 140 may be a curved glass, such as a 2.5D glass or a 3D glass. By providing the ink layer 600 on the side of the curved glass facing the display 400, the mobile terminal 10 can obtain a better appearance.

In an embodiment, the ink layer 600 may include a first ink layer 610 and a second ink layer 620, the first ink layer 610 is connected to the second ink layer 620, the first ink layer 610 is located between the body 140 and the second ink layer 620, and the lightness of the first ink layer 610 is greater than that of the second ink layer 620. Lightness is a parameter used to characterize the shade of a color, e.g., lightness of white is 100% and lightness of black is 0%. In one embodiment, the first ink layer 610 is a light ink layer 600, and the second ink layer 620 is a dark ink layer 600. Further, in an embodiment, the first ink layer 610 is a white ink layer 600, and the lightness of the white ink layer is 100%, so that a user can directly observe the appearance of the first ink layer 610. The second ink layer 620 is a black ink layer 600, and its brightness is 0%. Second ink layer 620 can also be gray ink layer 600, which can provide better light blocking. The second ink layer 620 may also serve as a primer layer, so that the lightness of the first ink layer 610 appears higher. In embodiments where first ink layer 610 is a white ink layer 600, and second ink layer 620 is a black ink layer 600 or a gray ink layer 600, second ink layer 620 may cause first ink layer 610 to appear whiter, thereby beautifying the appearance of mobile terminal 10. In the embodiment where the first ink layer 610 is a white ink layer 600, and the second ink layer 620 is a black ink layer 600 or a gray ink layer 600, the thickness of the first ink layer 610 is greater than or equal to the thickness of the second ink layer 620, such an arrangement can make the white color of the first ink layer 610 appear whiter, so as to prevent the color of the first ink layer 610 from being darker due to the light-transmitting property of the white ink.

In an embodiment, the number of the first ink layers 610 may be multiple, and the multiple first ink layers 610 are stacked on the same side of the body 140. Specifically, in an embodiment, the first ink layer 610 may include two or three white ink layers 600, and the three white ink layers 600 are sequentially stacked on the same side of the body 140. It is understood that the number of the first ink layer 610 may be four or more. The first ink layer 610 is obtained by a multi-layer printing method, which is beneficial to improving the brightness of the first ink layer 610. For example, when first ink layer 610 is white ink layer 600, white ink layer 600 printed in a multi-layer printing manner can make first ink layer 610 look whiter than a single layer of white ink layer 600.

Referring to fig. 1 again, in an embodiment, the ink layer 600 is formed with a light hole 700, and the light hole 700 is a blind hole, so that light can penetrate through the body 140 and enter the camera of the mobile terminal 10 through the light hole 700. Specifically, in one embodiment, the light hole 700 corresponds to a front camera of the mobile terminal 10, and the camera is disposed near the receiver 300. The light hole 700 is a circular hole, and light can penetrate through the body 140 of the cover plate 100 and is incident on the camera through the light hole 700, so that the camera can take a picture.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A cover plate is used for covering a rear shell of a mobile terminal and covering a display screen of the mobile terminal, and is characterized in that the cover plate comprises a first surface and a second surface which are oppositely arranged, and the second surface is positioned on one side of the cover plate facing the rear shell; a plurality of sound outlet holes are formed in the cover plate, penetrate through the first surface and the second surface and are arranged at intervals; the orthographic projection of the sound outlet holes on the main plane is at least partially overlapped with the orthographic projection of the telephone receiver of the mobile terminal on the main plane; the main plane is a plane perpendicular to the thickness direction of the mobile terminal;

the cover plate comprises a body and a boss, the body and the boss are integrally formed, the second surface protrudes outwards to one side far away from the first surface to form the boss, the sound outlet holes penetrate through the boss, and intervals exist between the sound outlet holes distributed near the edge of the boss and the edge of the boss; the boss is used for abutting against a receiver of the mobile terminal.

2. The cover plate according to claim 1, wherein a ratio of a maximum height of the boss from the first surface to a thickness of the body is 1.2 to 5.

3. The cover sheet of claim 1, further comprising an ink layer disposed on the second surface, the ink layer being located at a periphery of the body, the ink layer defining a window area.

4. The cover sheet of claim 3, wherein the ink layers comprise a first ink layer and a second ink layer, the first ink layer being positioned between the body and the second ink layer, the first ink layer having a greater lightness than the second ink layer.

5. The cover sheet according to claim 1, wherein the body is a flat glass or a curved glass.

6. The cover plate as claimed in claim 1, wherein the orthographic projection of the sound outlet hole on the main plane is circular or polygonal, and the maximum width of the sound outlet hole is 60-900 μm.

7. The cover plate of claim 1, wherein the width of the orthographic projection of the sound outlet holes on the main plane is greater than or equal to the width of the orthographic projection of the telephone receiver on the main plane.

8. A mobile terminal, comprising a rear housing and the cover plate of any one of claims 1 to 7, wherein the cover plate is covered on the rear housing, and the cover plate is fixedly connected with the rear housing.

9. The mobile terminal of claim 8, wherein the rear housing comprises a main body and a flange integrally formed on the main body, the flange is disposed on an outer periphery of the cover plate, and the cover plate is fixedly connected to the main body.

10. The mobile terminal according to claim 9, wherein the main body portion has a supporting surface, a dispensing layer is disposed on the supporting surface, and the cover plate is fixedly connected to the main body portion through the dispensing layer.