CN210225467U - Mobile terminal and shell and middle frame thereof - Google Patents

Abstract

The application relates to a mobile terminal, a shell of the mobile terminal and a middle frame of the mobile terminal, wherein the middle frame comprises two side end faces and a first end face connected between the two side end faces, the first end face comprises a first surface and a second surface which are adjacent, the second surface is inclined towards the middle part of the middle frame relative to the first surface, a first edge is formed at the adjacent position of the first surface and the second surface, and the first edge extends along the peripheral side of the middle frame and is connected to the side end face; the second surface is a concave surface, and a contour line of the second surface formed on a cross section in a thickness direction of the mobile terminal is an arc line. The application of the mobile terminal and the shell and the middle frame of the mobile terminal set the end face of the middle frame to be the part with two different light effects, and narrow frame effects are displayed visually, so that the visual effect of the mobile terminal is light and thin.

Description

Mobile terminal and shell and middle frame thereof

Technical Field

The application relates to the technical field of mobile terminals, in particular to a mobile terminal and a shell and a middle frame thereof.

Background

With the popularization of mobile terminals such as mobile phones and tablet computers, the mobile terminals have become an indispensable part of people's work and life. People not only need simple communication functions, but also pay more attention to the use experience of the mobile terminal. However, it is difficult to realize a light and thin visual sensation in the current mobile terminal as a whole.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a mobile terminal, a shell and a middle frame thereof, which are used for solving the problem that the existing mobile terminal is difficult to obtain light and thin vision.

The application provides a middle frame, which is used for being installed on a mobile terminal, and comprises two side end faces and a first end face connected between the two side end faces, wherein the first end face comprises a first surface and a second surface which are adjacent to each other; the second surface is a concave surface, and a contour line of the second surface formed on a cross section in the thickness direction of the mobile terminal is an arc line.

In one embodiment, a width of the side end surface is smaller than or equal to a width of the first surface in a thickness direction of the mobile terminal.

In one embodiment, the second surface has a first end and a second end along the extension direction of the first edge, and the first end and the second end are gradually narrowed and respectively jointed to the two side end surfaces.

In one embodiment, the width of the first end face is equal to the width of the side end face, and the first surface and the second surface are both smoothly joined to the side end face.

In one embodiment, the middle frame includes an inner wall disposed opposite to the first surface and the second surface, the inner wall defining a recessed area, and when the middle frame is mounted on the mobile terminal, a part of the structure of the camera module of the mobile terminal is accommodated in the recessed area.

In one embodiment, the first end face includes a third surface adjacent to the first surface and the first surface is located between the second surface and the third surface, and the third surface is inclined with respect to the first surface toward the middle of the middle frame.

In one embodiment, the third surface is a concave surface, and a contour line formed by the third surface on the cross section is an arc line.

In one embodiment, the middle frame includes an inner wall disposed opposite to the first surface, the second surface, and the third surface, and the inner wall defines a recessed area, and when the middle frame is mounted on the mobile terminal, a part of the structure of the camera module of the mobile terminal is received in the recessed area.

In one embodiment, the abutment of the first surface and the third surface forms a second edge extending along the peripheral side of the middle frame and connected to the lateral end surface.

In one embodiment, the side end surface has a first side edge and a second side edge, the first edge being joined to the first side edge and the second edge being joined to the second side edge.

In one embodiment, the middle frame comprises a second end face arranged opposite to the first end face, and the second end face is connected between the two side end faces; when the center is installed in mobile terminal, in mobile terminal's thickness direction, the width of second terminal surface with the width of side end face equals, or, the second terminal surface includes base surface and extension face, the extension face along the width direction of base surface borders on in the base surface, just the extension face relative the base surface orientation the middle part of center inclines, the extension face is the concave surface.

In one embodiment, the extension face is joined smoothly to the side end face.

In one embodiment, in the thickness direction of the mobile terminal, the base surface has two side edges, the side edge has a first side edge and a second side edge, and the two side edges are respectively bonded to the first side edge and the second side edge.

In one embodiment, in the thickness direction of the mobile terminal, the first surface has two opposite sides, the first edge is located on one side of the first surface, the other side of the first surface has a second edge, the first edge is jointed with the first side, and the second edge is jointed with the second side.

In another aspect, the present application provides a housing comprising a rear shell and the middle frame as described above, the rear shell being connected to the middle frame.

In another aspect, the present application further provides a mobile terminal, including:

a display screen;

the middle frame comprises two side end faces and a first end face connected between the two side end faces, the first end face comprises a first surface and a second surface which are adjacent, the first surface and the second surface are arranged along the thickness direction of the mobile terminal, the second surface is inclined relative to the first surface and faces to the middle of the middle frame, a first edge is formed at the adjacent position of the first surface and the second surface, and the first edge extends along the peripheral side of the middle frame and is connected with the side end faces; the second surface is a concave surface, and a contour line formed on a cross section of the second surface in the thickness direction of the mobile terminal is an arc line;

the side, far away from the first edge, of the second surface is connected to the display screen.

In one embodiment, the portion of the display screen forming the surface of the mobile terminal comprises a plane and a curved surface, wherein the plane is joined to the side of the second surface farther from the first edge, or the plane is joined to the curved surface and smoothly joined to the second surface through the curved surface.

In one embodiment, the portion of the display screen forming the surface of the mobile terminal is smoothly joined to the side end face.

Above-mentioned mobile terminal and casing and center thereof, the first terminal surface of this center includes adjacent first surface and second surface, and the relative first surface of second surface inclines towards the middle part of center, weakens first surface and the width stack effect of second surface in the vision to appear narrow frame effect in the vision, and then make mobile terminal's visual effect comparatively frivolous.

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 schematic structural diagram of a mobile terminal according to an embodiment;

fig. 2 is a schematic structural diagram of a mobile terminal according to another embodiment;

fig. 3 is a side view of the mobile terminal shown in fig. 1;

fig. 4 is a schematic diagram illustrating a rear case separation structure in the mobile terminal shown in fig. 3;

FIG. 5 is a schematic structural diagram of an embodiment of a middle frame of the mobile terminal shown in FIG. 1;

fig. 6 is a schematic cross-sectional structure diagram of the middle frame of the mobile terminal shown in fig. 5 on a cross section S;

fig. 7 is a schematic structural diagram of a middle frame of a mobile terminal cooperating with a camera module in an embodiment;

FIG. 8 is a diagram illustrating a structure of another embodiment of a middle frame of a mobile terminal according to an embodiment;

fig. 9 is a schematic cross-sectional structure diagram of the middle frame of the mobile terminal shown in fig. 8 on a cross section S;

fig. 10 is a partial cross-sectional structure view of the middle frame of the mobile terminal shown in fig. 8 when the camera module is engaged with the middle frame;

fig. 11 is a schematic diagram of a middle frame structure of a mobile terminal in another embodiment;

fig. 12A is a schematic structural diagram of another embodiment of a middle frame of a mobile terminal in an embodiment;

fig. 12B is a side view of the middle frame structure of the mobile terminal shown in fig. 12A;

fig. 13A is a schematic side view of a middle frame structure of a mobile terminal according to another embodiment;

fig. 13B is a partially enlarged schematic view of a part of the structure of the middle frame a of the mobile terminal shown in fig. 13A.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application 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.

As used herein, "terminal device" refers to a device capable of receiving and/or transmitting communication signals including, but not limited to, devices connected via any one or more of the following connections:

(1) via wireline connections, such as via Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connections;

(2) via a Wireless interface means such as 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.

A terminal device arranged to communicate over a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following:

(1) satellite or cellular telephones;

(2) personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities;

(3) radiotelephones, pagers, internet/intranet access, Web browsers, notebooks, calendars, Personal Digital Assistants (PDAs) equipped with Global Positioning System (GPS) receivers;

(4) conventional laptop and/or palmtop receivers;

(5) conventional laptop and/or palmtop radiotelephone transceivers, and the like.

Referring to fig. 1 and fig. 2, the present application provides a mobile terminal 100, where the mobile terminal 100 may be a mobile phone or a tablet computer. The mobile terminal 100 of the present embodiment is described taking a mobile phone as an example, and the mobile terminal 100 includes a housing 10 and a display 20 provided on the housing 10.

The housing 10 can be used for mounting the display 20 and receiving electronic components of the mobile terminal 100, and the housing 10 has various structural forms. The housing 10 includes a front case, a rear case 11, and a middle frame 12. The middle frame 12 is connected between the front shell and the rear shell 11, the display screen 20 is approximately covered on one side of the front shell, and the rear shell 11 is arranged on one side of the front shell, which is back to the display screen 20, and is connected with the middle frame 12. As shown in fig. 3 and 4, the housing 10 may be omitted from the front shell, that is, the housing 10 includes a rear shell 11 and a middle frame 12, and after the display panel 20 is mounted on the housing 10, the edge of the display panel 20 is substantially integrally joined to the middle frame 12.

The middle frame 12 is a substantially rectangular frame, and constitutes a frame of the mobile terminal 100. For convenience of understanding, an X-Y-Z rectangular coordinate system is established in the measurement directions of the length, width and thickness of the mobile terminal 100, and a frame of the mobile terminal 100 refers to a side portion of the mobile terminal 100 in the thickness direction (the Z-axis direction shown in fig. 1), which forms an external appearance of the mobile terminal 100 together with a rear surface 101 (e.g., an outer surface of the rear case 11) and a front surface 102 (e.g., an outer surface of the display 20) of the mobile terminal 100. The bezel of the mobile terminal 100 may be integral with the structural member constituting the front surface 102 or the structural member constituting the rear surface 101. For example, as shown in fig. 3, the middle frame 12 is integrally formed with the rear case 11. Alternatively, in some embodiments, part or all of the outer surface of the display screen 20 is formed on a glass cover plate that is integrally formed with the bezel 12.

In other embodiments, the middle frame 12 may form a frame portion of the mobile terminal 100, and the rear housing 11 is connected to the middle frame 12 by means of a snap, or by gluing or injection molding, which will not be described herein.

As shown in fig. 5, the middle frame 12 includes two side end surfaces 122 and a first end surface 121 connected between the two side end surfaces 122. When the bezel 12 is attached to the mobile terminal 100, the side end surface 122 and the first end surface 121 constitute different side surfaces of the mobile terminal 100. Taking a mobile terminal 100 in a rectangular block shape as an example, the mobile terminal 100 has opposite long sides and short sides. The size of the middle frame 12 is adapted to the installation requirement, the first end surface 121 may be located on one side of the long side of the mobile terminal 100, and the first end surface 121 may also be located on one side of the short side of the mobile terminal 100, as the top end surface or the bottom end surface of the mobile terminal 100.

The length of the first end surface 121 and the length of the side end surface 122 may be configured as required. For example, fig. 5 shows the middle frame 12 in which the first end surface 121 extends longer in the circumferential direction of the middle frame 12 than the side end surface 122. As another example, in the middle frame 12 shown in fig. 11, the length W of the first end surface 121 in the circumferential direction of the middle frame 12 is shorter than the length L of the side end surface 122 in the circumferential direction of the middle frame 12. The length of the two side end surfaces 122 may be equal, or one side end surface 122 may be longer and the other side end surface 122 may be shorter, which is not limited herein.

As shown in fig. 5 and 6, the first end surface 121 includes a first surface 121a and a second surface 121b that are adjacent to each other. For convenience of description of the structure of the middle frame 12, the middle frame 12 is hereinafter referred to as being mounted to the mobile terminal 100. When the middle frame 12 is mounted to the mobile terminal 100, the first surface 121a and the second surface 121b are arranged in a thickness direction of the mobile terminal 100 (i.e., a Z-axis direction shown in fig. 1). The second surface 121b is inclined with respect to the first surface 121a toward the middle of the middle frame 12. The first edge 1211 is formed at the position where the first surface 121a is adjacent to the second surface 121b, and the first edge 1211 extends along the peripheral side of the middle frame 12 and is connected to the lateral end surface 122. The second surface 121b is concave, and a contour line of the second surface 121b formed on a cross section S in the thickness direction of the mobile terminal 100 is an arc line.

In this embodiment, since the second surface 121b is concave and inclined toward the middle of the middle frame 12 relative to the first surface 121a, the second surface 121b will generate different light effects from the first surface 121a in visual sense, and the overall width of the middle frame 12 will be relatively narrow in visual sense. Therefore, with this structural arrangement, the light effect of the second surface 121b weakens the overlapping effect on the width of the first surface 121a, so that the middle frame 12 appears thinner, thereby making the mobile terminal 100 using the middle frame 12 appear thinner as a whole.

The first surface 121a may be a flat surface or a curved surface 202. For example, as shown in fig. 6, in some embodiments, the first surface 121a is convex so that the first surface 121a is disposed relatively concave to the second surface 121b, the glossy effect of the first surface 121a will be more pronounced so that visually, the first surface 121a forms relatively bright areas and the second surface 121b forms relatively dark areas, when the first end surface 121 is viewed from the middle frame 12 as a whole, the bright areas formed by the first surface 121a will dominate the visual width of the first end surface 121, while the relatively darker second surface 121b has a superimposed effect on the visual width, so that the first end surface 121 appears narrower, and thus a thinner visual effect is obtained.

The width of the side end surface 122 is less than or equal to the width of the first surface 121a in the thickness direction of the mobile terminal 100. The side end surface 122 is made narrower at the side, which is consistent with the narrow frame effect obtained by the first end surface 121. It should be noted that, in this configuration, the narrow frame effect obtained by making the width of the side end surface 122 narrower than that of the first end surface 121 is consistent.

In other embodiments, the side end surface 122 may also be configured as the first end surface 121, so that the visual width is narrow. For example, the actual width of the side end surface 122 is equivalent to the actual width of the first end surface 121, two surfaces respectively engaged with the first surface 121a and the second surface 121b are provided on the side end surface 122, and with the structural arrangement form of the first end surface 121, the two surfaces on the side end surface 122 exhibit different visual effects, so that the visual width of the side end surface 122 is narrower than the actual width. For easy understanding, the joining effect of the side end surface 122 and the first end surface 121 can be regarded as that the plurality of first end surfaces 121 are smoothly joined in the circumferential direction of the middle frame 12, that is, a narrow frame effect narrower than the actual width can be obtained visually when viewed facing any one of the first end surfaces 121.

The second surface 121b has a first end 1203 and a second end 1204 along the first edge 1211, and the first end 1203 and the second end 1204 are gradually narrowed and respectively joined to the two side end surfaces 122. With this configuration, the second surface 121b is smoothly joined to the side end surface 122, and a preferable overall visual effect is obtained.

Further, the second surface 121b is generally crescent-shaped when viewed from the side where the second surface 121b is located. Specifically, the edge of the second surface 121b includes, in addition to the first edge 1211, an edge line located on a side 1213 away from the first surface 121a, and two ends of the edge line and two ends of the first edge 1211 are respectively in arc transition and converge together, so that the second surface 121b is crescent-shaped as a whole. With this configuration, on the one hand, the second surface 121b can be smoothly joined to the side end surface 122, and on the other hand, a curved edge visual effect can be obtained, and the grip feeling is good.

In some embodiments, first end face 121 and side end face 122 may be joined together in a smooth transition, whether or not side end face 122 takes a narrow bezel visual design form similar to first end face 121. For example, the first surface 121a is smoothly joined to the side end surface 122, and the second surface 121b is also joined to the side end surface 122 in a smoothly joined manner. Thus, from the overall visual effect, the first end surface 121 presents a narrow bezel effect without affecting the visual coordination with the side end surface 122. In this embodiment, the width of the first end surface 121 may be equal to the width of the side end surface 122.

As further shown in fig. 5 and 8, the first edge 1211 includes a straight section 1201 and an arc section 1202, and the straight section 1201 smoothly transitions to the lateral end surface 122 through the arc section 1202. First surface 121a engages lateral surface 122 in a smooth transition, while second surface 121b converges and engages lateral surface 122 via curved edge portion 1202 of first edge 1211.

In other embodiments, the first surface 121a and the side end surface 122 are not smoothly transited, but form an edge at the junction of the two, and the second surface 121b is joined to the side end surface 122 in a smoothly transited manner, at this time, the structure of the second surface 121b relative to the first surface 121a can still enable the first end surface 121 to obtain the visual effect of a narrow frame.

As shown in fig. 6 and 7, in some embodiments, the middle frame 12 includes an inner wall 1214 disposed opposite to the first surface 121a and the second surface 121b, the inner wall 1214 defines a recessed area, and when the middle frame 12 is mounted on the mobile terminal 100, a part of the camera module 30 of the mobile terminal 100 is accommodated in the recessed area. With such a structure, on one hand, the middle frame 12 can be fully utilized to provide a certain installation space for the camera module 30, and the structure of the second surface 121b relative to the first surface 121a reduces the overall visual thickness of the middle frame 12, so that the camera module 30 is not visually increased in thickness of the mobile terminal 100. On the other hand, referring to fig. 10, since a part of the structure of the camera module 30 can be fitted into the recessed area of the middle frame 12, the optical axis 30b of the lens 32 of the camera module 30 can be as close as possible to the frame side of the middle frame 12, that is, the distance d between the border of the optical axis 30b and the side 1213 of the second surface 121b farther from the first surface 121a and the optical axis 30b can be smaller, so as to reduce the width of the black border and improve the screen occupation ratio.

In some embodiments, as shown in fig. 1, 7 and 10, when the camera module 30 is mounted on the mobile terminal 100, the light incident surface 30a of the camera module 30 is exposed to the side of the display screen 20, so as to meet the shooting requirement of the camera module 30. The camera module 30 includes a lens holder 31, a lens 32 and a photosensitive element 33, wherein the lens 32 is mounted on the lens holder 31, and can irradiate the light entering the lens 32 to the photosensitive area of the photosensitive element 33 after optical processing, so as to meet the requirement of shooting and imaging.

Further, a part of the structure of the camera module 30 is accommodated in the recessed area, the lens holder 31 and a part of the structure of the photosensitive element 33 are accommodated in the recessed area, or a part of the structure of the lens 32, a part of the structure of the lens holder 31 and a part of the structure of the photosensitive element 33 are accommodated in the recessed area, and only external light beams need to be irradiated from the light incident surface 30a of the camera module 30 to the photosensitive area of the photosensitive element 33 through the lens 32, so that the shooting requirement is met.

Referring to fig. 8, the first end surface 121 includes a third surface 121c, the third surface 121c is adjacent to the first surface 121a, the first surface 121a is located between the second surface 121b and the third surface 121c, and the third surface 121c is inclined toward the middle of the middle frame 12 relative to the first surface 121 a. With this arrangement, the first surface 121a has different gloss from the second and third surfaces 121b and 121c, thereby exhibiting a narrow bezel effect while satisfying the requirement of the actual width of the bezel 12.

As shown in fig. 9, the third surface 121c may be a concave surface, and a contour line formed by the third surface 121c in the cross section S is an arc line. Not only can obtain better cambered surface aesthetic feeling, but also can adapt to the requirements of darker gloss compared with the first surface 121a, thereby enhancing the narrow frame visual effect of the middle frame 12.

The middle frame 12 includes an inner wall 1214 opposite to the first surface 121a, the second surface 121b, and the third surface 121c, the inner wall 1214 defines a recessed area, and when the middle frame 12 is mounted on the mobile terminal 100, a part of the camera module 30 of the mobile terminal 100 is accommodated in the recessed area.

As shown in fig. 8 and 9, the abutment of the first surface 121a and the third surface 121c forms a second edge 1212, and the second edge 1212 extends along the peripheral side of the middle frame 12 and is connected to the lateral end surface 122.

The lateral end surface 122 has a first side 1221 and a second side 1222, a first edge 1211 joined to the first side 1221, and a second edge 1212 joined to the second side 1222.

It will be appreciated that in some embodiments, the middle frame 12 may be an open structure as shown in fig. 5, 8 and 11, that is, when the middle frame 12 includes two side end surfaces 122 and a first end surface 121, the two side end surfaces 122 and the first end surface 121 are integrally shaped as "Contraband". In other embodiments, the middle frame 12 may also be a closed frame structure as shown in fig. 12A. For example, the middle frame 12 includes a second end face 123 opposite to the first end face 121, and the second end face 123 is connected between the two side end faces 122. Thus, the first end surface 121, the second end surface 123 and the two side end surfaces 122 form a closed middle frame 12 structure. As shown in fig. 12A and 12B, when the middle frame 12 is mounted to the mobile terminal 100, the width h2 of the second end face 123 is equal to the width h1 of the side end face 122 in the thickness direction of the mobile terminal 100.

As shown in connection with fig. 13A and 13B, the second end face 123 may take the form of a structure of the first end face 121, i.e., a structure similar to that between the first surface 121a and the second surface 121B. For convenience of description, to avoid confusion with the first surface 121a and the second surface 121b of the first end surface 121, in describing the second end surface 123, the base surface 1231 and the extension surface 1232 are used herein, and in fact, regardless of the orientation of the first end surface 121 and the second end surface 123 in the overall structure of the middle frame 12, the structural form of the second end surface 123 may be the same as that of the first end surface 121, that is, the structural form of the base surface 1231 in this embodiment is similar to that of the first surface 121a of the first end surface 121, and the structural form of the extension surface 1232 is similar to that of the second surface 121b or the third surface 121c of the first end surface 121.

Specifically, the second end face 123 includes a base surface 1231 and an extension surface 1232, the extension surface 1232 is adjacent to the base surface 1231 in the width direction of the base surface 1231, the extension surface 1232 is inclined toward the middle of the middle frame 12 relative to the base surface 1231, and the extension surface 1232 is a concave surface.

The extension surface 1232 is joined smoothly to the side end surface 122.

In the thickness direction of the mobile terminal 100, the base 1231 has two side edges 1231a, 1231b, the side end surface 122 has a first side 1221 and a second side 1222, and the side edge 1231a is joined to the first side 1221 and the side edge 1231b is joined to the second side 1222.

Referring to fig. 1 and 8 again, in the thickness direction of the mobile terminal 100, the first surface 121a has two opposite sides, the first edge 1211 is located on one side of the first surface 121a, the other side of the first surface 121a has a second edge 1212, the first edge 1211 is connected to the first side 1221, and the second edge 1212 is connected to the second side 1222. Therefore, by using the structure, the overall visual effect of the middle frame 12 is not only thin, but also the end surfaces of the middle frame 12 are coordinated, thereby improving the overall beauty of the mobile terminal 100 equipped with the middle frame 12.

It should be noted that, for the mobile terminal 100, the display screen 20 is usually connected to the middle frame 12 in a manner that the display surface faces away from the middle frame 12. In some embodiments, a side 1213 of the second surface 121b that is further from the first edge 1211 is coupled to the display screen 20.

The connection between the second surface 121b and the display screen 20 has various forms, and the display screen 20 may take various forms to be connected to the middle frame 12. For example, as shown in fig. 1 and 5, the portion of the display 20 forming the surface of the mobile terminal 100 includes a plane 201 and a curved surface 202, and the plane 201 is joined to a side 1213 of the second surface 121b farther from the first edge 1211. In other embodiments, referring to fig. 2, the flat surface 201 is joined to the curved surface 202, and is smoothly joined to the second surface 121b through the curved surface 202, which is not limited herein.

In some embodiments, the portion of the display 20 forming the surface of the mobile terminal 100 is smoothly joined to the side end surfaces 122. It should be noted that the portion of the display screen 20 forming the surface of the mobile terminal 100 may be a cover plate covering the outside of the display panel, the cover plate may be a 3D glass cover plate made of glass, and the curved surface of the cover plate may be better engaged with the middle frame 12, so that the appearance of the mobile terminal 100 is more harmonious and beautiful.

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

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

Claims (19)

1. A middle frame for being installed on a mobile terminal, the middle frame comprising two side end faces and a first end face connected between the two side end faces, the first end face comprising a first surface and a second surface which are adjacent to each other, when the middle frame is installed on the mobile terminal, the first surface and the second surface are arranged along the thickness direction of the mobile terminal, the second surface is inclined towards the middle part of the middle frame relative to the first surface, a first edge is formed at the adjacent position of the first surface and the second surface, and the first edge extends along the peripheral side of the middle frame and is connected with the side end faces; the second surface is a concave surface, and a contour line of the second surface formed on a cross section in the thickness direction of the mobile terminal is an arc line.

2. The middle frame according to claim 1, wherein a width of the side end face is smaller than or equal to a width of the first surface in a thickness direction of the mobile terminal.

3. A middle frame according to claim 1, wherein the second surface has a first end and a second end along the extension of the first edge, the first end and the second end being tapered and joined to the two side end surfaces, respectively.

4. The middle frame according to claim 1, wherein the width of the first end surface is equal to the width of the side end surface, and the first surface and the second surface are both smoothly joined to the side end surface.

5. The middle frame according to any one of claims 1 to 4, wherein the middle frame includes an inner wall disposed opposite to the first surface and the second surface, the inner wall defining a recessed area, and a portion of the camera module of the mobile terminal is received in the recessed area when the middle frame is mounted on the mobile terminal.

6. The middle bezel of claim 1, wherein the first end face includes a third surface that is contiguous with the first surface and the first surface is located between the second surface and the third surface, the third surface being inclined with respect to the first surface toward a middle of the middle bezel.

7. The middle frame of claim 6, wherein the third surface is concave and the contour of the third surface in the cross-section is an arc.

8. The middle frame according to claim 6 or 7, wherein the middle frame includes an inner wall disposed opposite to the first surface, the second surface and the third surface, the inner wall defining a recessed area, and a portion of the structure of the camera module of the mobile terminal is received in the recessed area when the middle frame is mounted on the mobile terminal.

9. The middle frame according to claim 6, wherein the abutment of the first surface with the third surface forms a second edge extending along the peripheral side of the middle frame and connected to the side end surface.

10. The center of claim 9, wherein the side end surface has a first side edge and a second side edge, the first edge being joined to the first side edge and the second edge being joined to the second side edge.

11. The middle frame according to claim 1, wherein the middle frame comprises a second end surface arranged opposite to the first end surface, and the second end surface is connected between the two side end surfaces; when the center is installed in mobile terminal, in mobile terminal's thickness direction, the width of second terminal surface with the width of side end face equals, or, the second terminal surface includes base surface and extension face, the extension face along the width direction of base surface borders on in the base surface, just the extension face relative the base surface orientation the middle part of center inclines, the extension face is the concave surface.

12. A middle frame according to claim 11, wherein the extension face is joined smoothly to the side end face.

13. The middle frame according to claim 11 or 12, wherein the base surface has two side edges in a thickness direction of the mobile terminal, the side edge surface has a first side edge and a second side edge, and the two side edges are respectively bonded to the first side edge and the second side edge.

14. The middle frame of claim 13, wherein the first surface has two opposite sides in a thickness direction of the mobile terminal, the first edge is located on one side of the first surface, the other side of the first surface has a second edge, the first edge is connected with the first side edge, and the second edge is connected with the second side edge.

15. A housing comprising a rear shell and a center frame as claimed in any one of claims 1 to 14, said rear shell being attached to said center frame.

16. A mobile terminal, characterized in that,

a display screen;

the middle frame comprises two side end faces and a first end face connected between the two side end faces, the first end face comprises a first surface and a second surface which are adjacent, the first surface and the second surface are arranged along the thickness direction of the mobile terminal, the second surface is inclined relative to the first surface and faces to the middle of the middle frame, a first edge is formed at the adjacent position of the first surface and the second surface, and the first edge extends along the peripheral side of the middle frame and is connected with the side end faces; the second surface is a concave surface, and a contour line formed on a cross section of the second surface in the thickness direction of the mobile terminal is an arc line;

the side, far away from the first edge, of the second surface is connected to the display screen.

17. The mobile terminal of claim 16, wherein the portion of the display that forms the surface of the mobile terminal comprises a flat surface and a curved surface, wherein the flat surface is joined to the side of the second surface that is farther from the first edge, or wherein the flat surface is joined to the curved surface and is joined smoothly to the second surface by the curved surface.

18. A mobile terminal according to claim 16 or 17, wherein the portion of the display forming the surface of the mobile terminal is smoothly joined to the side end face.

19. The mobile terminal of claim 16, wherein the mobile terminal comprises a camera module, the middle frame comprises an inner wall disposed opposite to the first surface and the second surface, the inner wall defines a recessed area, a part of the camera module is accommodated in the recessed area, and the light incident surface of the camera module is exposed to a side of the display screen.

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