CN107147765A - Housing, housing assembly and mobile terminal - Google Patents

Abstract

The shell is provided with an outer surface and an inner surface opposite to the outer surface, the shell is provided with a key hole penetrating through the outer surface and the inner surface, the key hole is provided with an inner peripheral side surface, and a chamfer surface is connected between the inner peripheral side surface and the outer surface. The chamfer surface is connected between the inner peripheral side surface of the key hole and the outer surface of the shell, so that the inner peripheral side surface of the key hole is isolated from the outer surface of the shell, the direct intersection of the inner peripheral side surface of the key hole and the outer surface of the shell is avoided to form a sharp point, the shell is prevented from being damaged or a line operator is prevented from being damaged by the shell, and the production safety of the shell is improved.

Description

Housing, housing assembly and mobile terminal

technical field

The invention relates to the field of electronic equipment, in particular to a housing, a housing assembly and a mobile terminal.

Background technique

At present, key holes are usually arranged on the mobile phone case, but the key holes usually form a sharper angle when they open on the outer surface of the mobile phone case. Under such a structure, when the production line operator assembles parts into the key hole of the casing, it is easy to scratch the opening edge of the key hole, or scratch the production line operator at the angle between the opening edge of the key hole. That is to say, the production safety of the shell of this kind of structure is not high.

Contents of the invention

The purpose of the present invention is to provide a housing, a housing assembly and a mobile terminal that improve production safety.

In order to solve the above technical problems, the present invention provides a housing, wherein the housing has an outer surface and an inner surface opposite to the outer surface, and the housing is provided with a A button hole on the surface, the button hole has an inner peripheral side, and a chamfered surface is connected between the inner peripheral side and the outer surface. .

The present invention also provides a casing assembly, wherein the casing assembly includes the above-mentioned casing, and the casing assembly further includes a key cap, and the key cap is assembled in the key hole.

The present invention also provides a mobile terminal, wherein the mobile terminal includes the above casing assembly.

In the housing, housing assembly and mobile terminal provided by the present invention, the chamfered surface is connected between the inner peripheral side of the key hole and the outer surface of the housing, so that the inner peripheral side of the key hole It is isolated from the outer surface of the housing, preventing the inner peripheral side of the button hole from directly intersecting with the outer surface of the housing to form a sharp point, preventing the housing from being damaged or the housing from damaging the production line workers, The production safety of the housing is improved.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the implementation. Obviously, the drawings in the following description are some implementations of the present invention, which are common to those skilled in the art. As far as the skilled person is concerned, other drawings can also be obtained based on these drawings on the premise of not paying creative work.

Fig. 1 is a front view of a casing provided by an embodiment of the present invention;

Fig. 2 is a schematic cross-sectional view along II-I of the casing provided by the embodiment of the present invention;

Fig. 3 is another schematic cross-sectional view of the casing provided by the embodiment of the present invention;

Fig. 4 is a schematic left side view of the housing of Fig. 1 provided by an embodiment of the present invention;

Fig. 5 is a schematic diagram of the right side of the housing of Fig. 1 provided by an embodiment of the present invention;

Fig. 6 is a side view of a housing provided by another embodiment of the present invention;

Fig. 7 is another schematic cross-sectional view of the casing provided by the embodiment of the present invention;

Fig. 8 is a schematic cross-sectional view of a housing provided by another embodiment of the present invention;

Fig. 9 is a schematic cross-sectional view of a housing provided by another embodiment of the present invention;

Fig. 10 is another perspective view of the casing provided by the embodiment of the present invention;

Fig. 11 is a schematic perspective view of a housing provided by another embodiment of the present invention;

Fig. 12 is a schematic cross-sectional view of a housing provided by another embodiment of the present invention;

Fig. 13 is a schematic cross-sectional view of a housing provided by another embodiment of the present invention;

Fig. 14 is another schematic cross-sectional view of the casing provided by the embodiment of the present invention;

Fig. 15 is a perspective exploded schematic diagram of a housing assembly provided by an embodiment of the present invention;

Fig. 16 is an exploded perspective view of a housing assembly provided by another embodiment of the present invention;

Fig. 17 is a main diagram of a mobile terminal provided by an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the term "thickness" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than implying Or an indication that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

Referring to FIG. 1 and FIG. 2 , the present invention provides a casing 100 having an outer surface 10 and an inner surface 20 disposed opposite to the outer surface 10 . The casing 100 is provided with a button hole 30 passing through the outer surface 10 and the inner surface 20 . The button hole 30 has an inner peripheral side 31 , and a chamfered surface 32 is connected between the inner peripheral side 31 and the outer surface 10 . It can be understood that the housing 100 is applied to a mobile terminal, which may be a mobile phone, a tablet computer, or a notebook computer.

In this embodiment, the housing 100 is a plastic part. The outer surface 10 faces the user, and the outer surface 10 is an appearance surface of the casing 100 . The outer surface 10 can be a flat surface or a curved surface, or a combination of a flat surface and a curved surface. The inner surface 20 is roughly parallel to the outer surface 10 to ensure uniform wall thickness of the housing 100 , thereby ensuring the molding quality of the housing 100 . The inner surface 20 faces the functional devices inside the housing 100 . The button holes 30 are used to pass through the buttons. The button holes 30 are opened in the flat area or the curved area of the outer surface 10 , or in the combination of the flat area and the curved area. There is a draft angle on the inner peripheral side of the button hole 30, and the draft angle of the button hole 30 is less than 8 degrees, or equal to 8 degrees, so as to ensure the molding quality of the button hole 30 at the opening of the outer surface 10 . Certainly, in other implementation manners, the housing 100 may also be a metal piece. The button hole 30 is formed by milling process.

Further, referring to FIG. 3 , the housing 100 includes a back cover 40 , and the back cover 40 includes a back plate 41 and a side plate 42 fixed on the periphery of the back plate 41 . The button hole 30 is defined in the side panel 42 .

In this embodiment, the side panel 42 is integrally formed with the back panel 41 . The back cover 40 is the battery cover of the mobile phone. The housing 100 also includes a front cover 50 . The front cover 50 is composed of a glass plate and a display bonded to the glass plate. The front cover 50 is closed with the back cover 40 . A plurality of functional devices are fixed between the front cover 50 and the back cover 40 , and the plurality of functional devices may be a motherboard, a memory, a processing chip, and the like. The extension direction of the button hole 30 on the side panel 42 may be parallel to the back panel 41 . Since the main board 43 fixed on the inner side of the back cover 40 is generally parallel to the back board 41 , the extending direction of the button hole 30 on the side board 42 is parallel to the main board 43 fixed on the back board 41 . The number of the button hole 30 can be one or more. The side panels 42 include a first side panel 421 (see FIG. 1 ) and a second side panel 422 (see FIG. 1 ) opposite to each other in the width direction of the back panel 41 . In the viewing angle of FIG. 1 , the first side panel 421 is the left side of the back panel 41 . The first button hole 33 is defined on the first side plate 421 . The first button hole 33 is used to cooperate with a sound button. The second button hole 34 is defined on the second side panel 422 . The second button hole 34 is used to cooperate with a power switch button.

In one embodiment, as shown in FIG. 4 and FIG. 5 , the circumferential direction of the first button hole 33 extends along the curve of an elliptical racetrack. The circumferential direction of the second button hole 34 also extends along the curve of the elliptical racetrack. The width D of the first button hole 33 is roughly twice the width d of the second button hole 34 . The distance from the first button hole 33 to the backboard 41 is equal to the distance from the second button hole 34 to the backboard 41 . The opening of the first button hole 33 on the outer surface 10 is provided with a first chamfered surface 331 . The opening of the second button hole 34 on the outer surface 10 is provided with a second chamfered surface 341 . The angle formed between the first chamfered surface 331 and the inner peripheral side of the first button hole 33 is equal to the angle between the second chamfered surface 341 and the inner peripheral side of the second button hole 34 . The first chamfered surface 331 extends along the circumferential direction of the first button hole 33 . The second chamfered surface 341 extends along the circumferential direction of the second button hole 34 . In other embodiments, the first chamfered surface 331 may also extend along the intersection line between the inner peripheral side 31 of the first button hole 33 and the outer surface 10 . The second chamfered surface 341 may also extend along the intersection line between the inner peripheral side 31 of the second button hole 34 and the outer surface 10 .

In another embodiment, as shown in FIG. 6 , the circumferential direction of the first button hole 33 extends along a substantially inverted "8" curve. The first button hole 33 is provided with ribs 333 on two sidewalls 332 in the height H direction. The two raised ribs 333 are used to separate two sound keys. The first chamfered surface 331 extends along a substantially inverted "8" curve. The first chamfered surface 331 isolates the convex rib 333 from the outer surface 10 , so as to avoid sharp points at the intersection of the convex rib 333 and the outer surface 10 .

Further, please refer to FIG. 7 , the outer surface 10 has an outer peripheral side 11 disposed on the side plate 42 , the outer peripheral side 11 protrudes relative to the inner side of the side plate 42 , and the button hole 30 is formed by the The outer peripheral side 11 extends toward the inner side of the side plate 42 .

In this embodiment, since the outer peripheral side 11 protrudes from the inner side of the side plate 42 , the outer peripheral side 11 has an inclined region 111 inclined relative to the back plate 41 . A lateral area 311 parallel to the back plate 41 exists on the inner peripheral side 31 of the button hole 30 . The inclined region 111 and the lateral region 311 generally form an acute angle a less than 90°. The chamfered surface 32 separates the inclined region 111 from the lateral region 311 , the first angle b between the chamfered surface 32 and the inclined region 111 is approximately greater than or equal to 90 degrees, and the chamfered surface The second included angle c between 32 and the lateral region 311 is substantially greater than or equal to 90. So that the user will not scratch his hand when touching the opening of the key hole 30 on the outer peripheral side 11 .

In one embodiment, as shown in FIG. 7 , the outer peripheral side 11 is an arc-shaped curved surface. The opening of the button hole 30 on the outer peripheral side 11 is located at the most protruding area of the outer peripheral side 11, so that the depth of the button hole 30 can be lengthened, ensuring that the button hole 30 effectively guides the button. Two opposite lateral regions 311 on the inner peripheral side of the key hole 30 respectively form an acute angle with the upper and lower inclined regions 111 on the outer peripheral side 11 .

In another embodiment, as shown in FIG. 8 , the opening of the key hole 30 on the outer peripheral side 11 is located at an inclined area of the outer peripheral side 11 . The key hole 30 has a first lateral region 3111 forming an acute angle with the inclined region 111 , and a second lateral region 3112 forming an obtuse angle with the inclined region 111 .

In another embodiment, as shown in FIG. 9 , the outer peripheral side 11 is formed by continuous bending of at least two flat surfaces. The outer peripheral side 11 includes a first flat surface 112 , a second flat surface 113 and a third flat surface 114 connected in sequence. The first flat surface 112 is inclined relative to the backboard 41 , and the first flat surface 112 is close to the backboard 41 . The second flat surface 113 is substantially perpendicular to the backboard 41 . The third flat surface 114 is inclined relative to the backboard 41 . The inner peripheral side 31 of the key hole 30 is provided with a first lateral area 3111 and a second lateral area 3112 oppositely disposed. The first lateral region 3111 forms an acute angle with the first flat surface 112 . The second lateral region 3112 forms an acute angle with the third flat surface 114 . The chamfered surface 32 separates the first lateral region 3111 from the first flat surface 112 , and the chamfered surface 32 also separates the second lateral region 3112 from the third flat surface 114 .

Further, please refer to FIG. 10 and FIG. 11 , the chamfered surface 32 is a flat surface. The chamfered surface 32 forms an obtuse angle with the outer peripheral side 11 . The chamfered surface 32 forms an obtuse angle with the inner peripheral side 31 .

In one embodiment, as shown in FIG. 10 , the included angle between the chamfered surface 32 and the outer peripheral side 11 is equal to the included angle between the chamfered surface 32 and the inner peripheral side 31 . The included angle between the chamfered surface 32 and the outer peripheral side 11 and the included angle between the chamfered surface 32 and the inner peripheral side 31 vary along the extending direction of the chamfered surface 32 .

In another embodiment, as shown in FIG. 11 , the outer peripheral side 11 is a curved surface. The included angle between the chamfered surface 32 and the outer peripheral side 11 varies with the extension of the chamfered surface 32, and the included angle between the chamfered surface 32 and the inner peripheral side 31 varies with the extension of the chamfered surface. The extension of 32 maintains the preset angle unchanged. The preset angle can be 45 degrees, 30 degrees, or 60 degrees.

In another embodiment, as shown in FIG. 12 , the chamfered surface 32 is an arc surface. The chamfered surface 32 is tangent to the outer peripheral side 11, so that the chamfered surface 32 is smoothly connected with the outer peripheral side 11, and the angle between the chamfered surface 32 and the outer peripheral side 11 is prevented from scratching the user . The chamfered surface 32 is tangent to the inner peripheral side 31, so that the chamfered surface 32 is smoothly connected with the inner peripheral side 31, and the angle between the chamfered surface 32 and the inner peripheral side 31 is prevented. Scratch the user.

In another embodiment, as shown in FIG. 13 , the chamfered surface 32 is an arc surface. There is a first step 35 between the chamfered surface 32 and the outer peripheral side 11 . There is a second step 36 between the chamfered surface 32 and the inner peripheral side 31 . The first step 35 separates the chamfer surface 32 from the outer peripheral side 11, and the second step 36 separates the chamfer surface 32 from the inner peripheral side 31, so that the chamfer The surface 32 is easy to process, and is not easy to damage the inner peripheral side 31 and the outer peripheral side 11 .

Further, referring to FIG. 10 and FIG. 11 , the chamfered surface 32 has a first edge 321 connected to the outer peripheral side 11 and a second edge 322 connected to the inner peripheral side 31 .

In one embodiment, as shown in FIG. 10 , the first edge 321 is parallel to the second edge 322 . Both the first edge 321 and the second edge 322 are parallel to the intersection line of the outer peripheral side 11 and the inner peripheral side 31 . That is, the chamfered surface 32 extends along the junction line between the outer peripheral side 11 and the inner peripheral side 31 , so that each of the chamfered surfaces 32 has the same width, which improves the appearance effect.

In another embodiment, as shown in FIG. 11 , the first edge 321 has a wavy curve. The second edge 322 extends along the circumference of the button hole 30 . The chamfered surface 32 extends parallel to the circumferential direction of the button hole 30 . The chamfered surface 32 maintains an included angle of approximately 45 degrees with the inner peripheral side of the button hole 30 .

Further, as shown in FIG. 14 , the outer surface 10 and the chamfered surface 32 are respectively attached with a first paint layer 12 and a second paint layer 324 .

In this embodiment, the first paint layer 12 and the second paint layer 324 are paint layers. The first paint layer 12 and the second paint layer 324 may be formed simultaneously through a spraying process. The composition of the first paint layer 12 and the second paint layer 324 is the same, so that the appearance effect of the first paint layer 12 is the same as that of the second paint layer 324 . Since the first paint layer 12 and the second paint layer 324 are formed by a spraying process, when the outer surface 10 and the chamfered surface 32 are formed by a spraying process, it is necessary to cover the inner peripheral side 31. Specifically, a plug is inserted into the button hole 30 , the plug covers the inner peripheral side 31 , the outer surface 10 and the chamfered surface 32 are painted, and then the plug is removed. Of course, in other embodiments, if the housing 100 is made of metal parts, a machining allowance can be reserved on the inner peripheral side of the key hole 30, and the outer surface 10 and the chamfer After the paint is sprayed on the surface 32, the machining allowance inside the button hole 30 is removed. In other embodiments, the first paint layer 12 and the second paint layer 324 may also be different, the first paint layer 12 has a metal appearance, and the second paint layer 324 has a metal cross-sectional appearance. By first covering the inner peripheral side 31 and the chamfered surface 32, the outer surface 10 is painted, and then the inner peripheral side 31 and the outer surface 10 are covered, and the chamfered surface 32 is painted .

Please refer to FIG. 15 , the present invention also provides a housing assembly 200 , the housing assembly 200 includes the housing 100 , and the housing assembly 200 further includes a keycap 37 . The key cap 37 is assembled in the key hole 30 . The keycap 37 has a peripheral side 371 and a bottom surface 372 facing the inside of the key hole 30 , and a keycap chamfer 373 is connected between the peripheral side 371 and the bottom surface 372 . Use the chamfer surface 373 to isolate the peripheral side surface 371 from the bottom surface 372, prevent the peripheral side surface 371 and the bottom surface 372 from directly intersecting to form an included angle, and prevent the bottom of the keycap 37 from scratching the user. When the key cap 37 is assembled in the key hole 30 , it will scratch the opening of the key hole 30 .

The keyhole 30 is slidably connected with the keycap 37 . The keyhole 30 is matched with the keycap 37 . The outer peripheral sidewall of the key cap 37 is in clearance fit with the inner peripheral side 31 of the key hole 30 to facilitate the sliding of the key cap 37 in the key hole 30 . The key cap 37 covers the key hole 30 to prevent dust and impurities from entering the key hole 30 . By setting the chamfered surface 32 at the opening of the key hole 30 on the outer surface 10 , the opening diameter of the key hole 30 is increased, and the keycap 37 is conveniently inserted into the key hole 30 . When the key cap 37 is assembled in the key hole 30 , the key cap 37 is not easy to collapse the opening of the key hole 30 and not easy to damage the housing 100 .

In another embodiment, please refer to FIG. 16 , a groove 374 is formed on a peripheral side of the keycap 37 corresponding to the rib 333 . The groove 374 matches with the rib 333 , so as to guide the keycap 37 and facilitate the sliding of the keycap 37 in the key hole 30 .

Referring to FIG. 17 , the present invention also provides a mobile terminal 300 , and the mobile terminal 300 includes the casing assembly 200 . The mobile terminal 300 also includes a main board 40 and a key switch 50 fixed on the edge of the main board 40 . The main board 40 is fixed in the casing 100 . The key switch 50 is directly opposite to the key hole 30 . The bottom of the key cap 37 is in contact with the key switch 50 .

In the housing, housing assembly and mobile terminal provided by the present invention, the chamfered surface is connected between the inner peripheral side of the key hole and the outer surface of the housing, so that the inner peripheral side of the key hole It is isolated from the outer surface of the housing, preventing the inner peripheral side of the button hole from directly intersecting with the outer surface of the housing to form a sharp point, preventing the housing from being damaged or the housing from damaging the production line workers, The production safety of the housing is improved.

The above is the preferred embodiment of the invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the invention, some improvements and modifications can also be made, and these improvements and modifications are also regarded as the protection of the invention. scope.

Claims (17)

1. A casing, characterized in that, the casing has an outer surface and an inner surface arranged relative to the outer surface, and the casing is provided with a button hole passing through the outer surface and the inner surface, so The button hole has an inner peripheral side, and a chamfered surface is connected between the inner peripheral side and the outer surface. 2. The casing according to claim 1, wherein the casing includes a back cover, the back cover includes a back plate and a side plate fixed on the periphery of the back plate, and the button hole is opened in the Said side panels. 3. The housing according to claim 2, wherein the outer surface has an outer peripheral side arranged on the side plate, the outer peripheral side protrudes relative to the outer side of the side plate, and the button hole is formed by The outer peripheral side extends toward the inner side of the side plate. 4. The casing according to claim 3, wherein the outer peripheral side is an arc-shaped curved surface. 5 . The casing according to claim 3 , wherein the outer peripheral side is formed by continuous bending and connection of at least two flat surfaces. 6 . 6. The casing according to claim 4 or 5, wherein the chamfered surface has a first edge connected to the outer peripheral side and a second edge connected to the inner peripheral side, the first edge isolated from the second edge. 7. The housing of claim 6, wherein the first edge is parallel to the second edge. 8. The casing according to any one of claims 1-7, wherein the chamfered surface is a flat surface. 9 . The casing according to claim 8 , wherein the chamfered surface is inclined at a predetermined angle relative to the inner peripheral side. 10. The casing according to any one of claims 1-7, wherein the chamfered surface is an arc surface. 11. The casing according to claim 10, wherein the chamfered surface is tangent to the inner peripheral side, and the chamfered surface is tangent to the outer surface. 12. The housing according to any one of claims 1-7, wherein the key hole is used for slidingly connecting the key cap. 13. The casing according to claim 12, wherein the inner peripheral side of the key hole is provided with a rib, and the rib guides the keycap to slide, and the chamfered surface guides the keycap. The rib is isolated from the outer surface. 14. The casing according to any one of claims 1-7, characterized in that, the outer surface and the chamfered surface are respectively attached with a first paint layer and a second paint layer. 15. A casing assembly, characterized in that, the casing assembly comprises the casing according to any one of claims 1 to 9, and the casing assembly further includes a keycap, and the keycap is assembled on the key inside the hole. 16. The casing according to claim 15, wherein the keycap has a peripheral side surface and a bottom surface facing the inner side of the key hole, and a keycap chamfer surface is connected between the peripheral side surface and the bottom surface . 17. A mobile terminal, characterized in that the mobile terminal comprises the housing assembly described in any one of claims 15-16.