CN115397167A

CN115397167A - Rear cover assembly and mobile terminal

Info

Publication number: CN115397167A
Application number: CN202211306778.6A
Authority: CN
Inventors: 张久利; 曹家赫; 李大海
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2022-11-25
Anticipated expiration: 2042-10-25
Also published as: CN115397167B

Abstract

The application provides a rear cover assembly and a mobile terminal. Rear cover subassembly includes mainboard support, back lid, camera decoration and mounting. The mainboard support includes support body and card holder, and the card holder is fixed in the surface of support body. The back lid is equipped with first mounting hole, and the camera decoration is equipped with the mounting groove, and the tank bottom wall of mounting groove is equipped with the second mounting hole, and back lid closes the surface that is equipped with the card and holds the body at the mainboard support. The camera decoration is installed in the surface that the back lid is back to the mainboard support, and the tank bottom wall of mounting groove is located first mounting hole, and the card is held the body and is located first mounting hole, and passes in the second mounting hole extends to the mounting groove. The fixing piece is arranged in the mounting groove and clamped with the clamping body. The application provides a rear cover subassembly can solve the fixed mode of camera decoration among the prior art complicated, the technical problem of easily warping.

Description

Rear cover assembly and mobile terminal

Technical Field

The application relates to the technical field of communication, in particular to a rear cover assembly and a mobile terminal.

Background

With the rapid development of science and technology, the popularity of mobile terminals such as mobile phones, cover plate computers and the like is higher and higher. In order to facilitate the use of users, the existing mobile terminals are generally provided with a rear camera device. The rear-mounted imaging apparatus is often externally mounted due to its large size. In the prior art, an externally-mounted rear camera device generally adopts primary and secondary screws to realize fixed connection. However, the mobile terminal is complicated in structure by the fixing method of the snap screws, and the camera decoration is deformed.

Disclosure of Invention

The application provides a rear cover subassembly and mobile terminal to the fixed mode of camera decoration among the solution prior art is complicated, the technical problem of easily warping.

In order to solve the above problems, the present application provides a rear cover assembly applied to a mobile terminal. The rear cover assembly includes: mainboard support, back lid, camera decoration and mounting. The mainboard support comprises a support body and a clamping body, and the clamping body is fixed on the surface of the support body. The back lid is equipped with first mounting hole, the camera decoration is equipped with the mounting groove, the tank bottom wall of mounting groove is equipped with the second mounting hole, back lid closes the mainboard support is equipped with the surface of the card body, the camera decoration install in back lid dorsad the surface of mainboard support, just the tank bottom wall of mounting groove is located in the first mounting hole, the card body is located first mounting hole, and pass the second mounting hole extends to in the mounting groove. The fixing piece is arranged in the mounting groove, and the fixing piece and the clamping body are clamped.

In this embodiment, through setting up the mounting to block through mounting and mainboard support card, can realize the fixed to the camera decoration, need not to set up primary and secondary screw, simplified the structure of back cover subassembly, reduced the cost of manufacture, and saved the overall arrangement space of mainboard, be favorable to the miniaturization of mainboard, be favorable to realizing back cover subassembly and electronic equipment's frivolousization. Simultaneously, camera decoration in this embodiment non-deformable has promoted the compactness that camera decoration and back lid are connected, has reduced the clearance between camera decoration and the back lid. In addition, in the embodiment, the mounting groove is formed in the camera decorating part, and the groove bottom wall of the mounting groove is located in the first mounting hole, so that the thickness of the rear cover assembly can be reduced, and the rear cover assembly and the mobile terminal are light and thin.

In a possible implementation manner, the fixing part comprises an edge part, a protrusion is arranged on the surface of the edge part, and when the clamping body and the protrusion are arranged in a staggered manner, the clamping body and the fixing part are unlocked; and rotating the fixing piece to enable the clamping body and the protrusion to be oppositely arranged and to be abutted against the protrusion, and clamping the fixing piece by the clamping body.

In this embodiment, through setting up the arch at the mounting to when the card holder supports with the arch and holds, the fixing is held to the card holder, thereby promotes the fastening nature that the fixing was held in the mounting groove card, avoids fixing and the pine of card holder to take off. And the clamping body and the bulge are arranged in a staggered manner, and the clamping body and the fixing piece are unlocked, so that the fixing piece is more convenient to mount and dismount.

In a possible embodiment, the clamping body comprises a connecting part and an extending part, the connecting part is fixedly connected with the extending part, the extending direction of the connecting part is intersected with the extending direction of the extending part, and one end of the connecting part, which is back to the extending part, is fixedly connected with the surface of the bracket body; the extension part is positioned in the mounting groove and is arranged at intervals with the bottom wall of the mounting groove to form a clamping space, and the edge part is positioned in the clamping space.

In this embodiment, through set up the extension at the card holder, make to form the card between extension and the camera decoration and hold the space to locate the mounting in the card space, can realize holding the fixing to the mounting, thereby realize the fixed to the camera decoration, thereby can simplify the structure of back shroud subassembly, reduce the cost of manufacture of back shroud subassembly.

In a possible embodiment, when the retaining body is retained with the fixing member, the extending portion is disposed opposite to the protrusion and abuts against the protrusion; when the clamping body and the fixing piece are unlocked, the extending part and the protrusion are arranged in a staggered mode.

In this embodiment, through setting up the arch at the mounting to when extension and arch support, the mounting is held to the card holder, thereby promotes the fastening nature that the mounting held in the mounting groove, avoids mounting and the pine of card holder to take off. And meanwhile, when the extending part and the protrusion are arranged in a staggered manner, the clamping body and the fixing part are unlocked, so that the fixing part is more convenient to mount and dismount.

In a possible embodiment, the projection is rectangular, wedge-shaped or circular.

In this embodiment, when the arch was the wedge, the card was held body and protruding adaptation more to further promoted the fixity that the mounting was held in the mounting groove card, further avoided the mounting to take off with the pine of the card body, promoted the structural stability of rear cover subassembly.

In a possible embodiment, at least two of the second mounting holes are symmetrically arranged with respect to the center of the camera decoration piece, at least two of the clamping bodies are arranged at intervals, at least two of the clamping bodies and at least two of the second mounting holes are arranged in a one-to-one correspondence, and one of the clamping bodies passes through one of the second mounting holes and extends into the mounting groove.

In this embodiment, through setting up at least two card holder symmetries, can promote the homogeneity of mounting and camera decoration atress to can avoid the camera decoration to take place to warp, further promote the structural stability of back shroud subassembly.

In a possible embodiment, there are four clamping bodies, the centers of the four clamping bodies are located at four corners of a square respectively, there are four second mounting holes, the four second mounting holes and the four clamping bodies are arranged in a one-to-one correspondence manner, and one clamping body passes through one second mounting hole and extends into the mounting groove.

In this embodiment, through setting up four clamping bodies to set up four clamping body symmetries, can further promote the homogeneity of mounting and camera decoration atress, thereby can further avoid the camera decoration to take place to warp, promote the structural stability of back shroud subassembly.

In a possible implementation manner, the number of the protrusions is four, four protrusions are arranged at intervals along the circumferential direction of the edge portion, and the four protrusions and the four clamping bodies are arranged in one-to-one correspondence; when the clamping bodies and the fixing piece are clamped, each clamping body is arranged opposite to and abutted against the corresponding bulge; when the clamping bodies and the fixing piece are unlocked, the four clamping bodies and the protrusions are arranged in a staggered mode.

In this embodiment, through setting up four archs, and when the card body is held with the mounting card, the connecting portion of four card bodies set up and support with four protruding one-to-one to can further promote the stability that the card body held the mounting card, promote the stability that mounting and camera decoration are connected, and then further promote the structural stability of back shroud subassembly.

In a possible implementation manner, the main board support further includes a fixing column, the fixing column is vertically connected to the surface of the support body, is located at the center of a square formed by connecting the centers of the four clamping bodies, and is spaced from the four clamping bodies; the camera decoration is provided with a third mounting hole, the third mounting hole is located in the center of the camera decoration, the fixing piece is provided with a fourth mounting hole, the fourth mounting hole is located in the center of the fixing piece, and the fixing column is located in the third mounting hole and the fourth mounting hole.

In this embodiment, through setting up the fixed column to make the fixed column pass the third mounting hole of camera decoration and the fourth mounting hole of mounting in proper order, thereby can further promote the stability that mainboard support, camera decoration and mounting are connected, and then further promote the structural stability of back shroud subassembly.

In a possible implementation manner, the main board support is provided with a first avoiding hole, the rear cover is provided with a second avoiding hole, the camera decoration part is provided with a light passing hole, the first avoiding hole, the second avoiding hole and the light passing hole are all oppositely arranged and communicated and are jointly used for installing the camera of the mobile terminal, and the light passing hole is also used for allowing light outside the mobile terminal to enter the camera.

In this embodiment, all set up through at mainboard, mainboard support and hou gai and dodge the hole to set up logical unthreaded hole at the camera decoration, can provide installation space for mobile terminal's camera, thereby play the effect of practicing thrift mobile terminal inner space.

In a possible embodiment, the rear cover assembly further includes a decorative sheet fixed to a surface of the camera decoration facing away from the rear cover, and the fixing member is located between the decorative sheet and the camera decoration.

In this embodiment, decorate the piece through setting up, can shelter from the structure in mounting and the mounting groove to can promote the uniformity and the aesthetic property of back shroud subassembly outward appearance.

In a possible embodiment, an orthographic projection of the decorative sheet on the fixing piece completely covers the fixing piece, and the decorative sheet is fixedly connected with the fixing piece.

In this embodiment, decorate the piece through setting up to will decorate piece and mounting fixed connection, can further play the fixed action to the mounting, avoid the mounting at the mounting groove internal rotation and with the unblock of card holder, thereby promoted the structural stability of back shroud subassembly.

The application also provides a mobile terminal, including center, display screen and above-mentioned back cover subassembly, the back cover subassembly with the display screen sets up relatively, and all with center fixed connection.

The application provides a mobile terminal sets up the mounting through the rear cover subassembly to the realization has simplified mobile terminal's structure to the fixed of camera decoration, is favorable to realizing mobile terminal's frivolousization.

In a possible implementation manner, the mobile terminal further includes a main board, the main board is located on a side of the main board support back to the rear cover, and is fixedly connected to the main board support, and the main board support is fixedly connected to the middle frame.

In this embodiment, through locating the mainboard between center and the mainboard support to with mainboard support and mainboard and center fixed connection, thereby can realize mainboard and center fixed connection.

Synthesize the aforesaid, this application is through setting up the mounting at the back shroud subassembly to block through mounting and main board support card, can realize the fixed to the camera decoration, need not to set up primary and secondary screw, simplified the structure of back shroud subassembly, reduced the cost of manufacture, and saved the overall arrangement space of mainboard, be favorable to the miniaturization of mainboard, be favorable to realizing back shroud subassembly and electronic equipment's frivolousization. Simultaneously, camera decoration in this embodiment non-deformable has promoted the compactness that camera decoration and back lid are connected, has reduced the clearance between camera decoration and the back lid.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the background art of the present application, the drawings required to be used in the embodiments or the background art of the present application will be described below.

Fig. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present application;

fig. 2 is a schematic structural view of a rear cover assembly in the mobile terminal shown in fig. 1;

FIG. 3 is an exploded view of the rear cover assembly of FIG. 2;

FIG. 4 is a schematic view of a partially exploded view of the rear cover assembly of FIG. 2;

FIG. 5 is a schematic view of a rear cover of the rear cover assembly of FIG. 3;

FIG. 6 is a schematic view of the camera trim piece of the rear cover assembly of FIG. 3;

FIG. 7 is a schematic view of the fixing member of the rear cover assembly shown in FIG. 3;

FIG. 8 isbase:Sub>A cross-sectional view of the rear cover assembly of FIG. 2 taken along the line A-A;

fig. 9 is a partial structural view of the rear cover assembly shown in fig. 2.

Detailed Description

The embodiments of the present application will be described below with reference to the drawings.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a mobile terminal 200 according to an embodiment of the present disclosure.

The present application provides a mobile terminal 200. The mobile terminal 200 includes, but is not limited to, a mobile phone (cellular phone), a noteBook computer (noteBook computer), a tablet computer (tablet personal computer), a laptop computer (laptop computer), a Personal Digital Assistant (PDA), or a wearable device (wearable device). The following description will be made with the mobile terminal 200 as a mobile phone.

The mobile terminal 200 includes a rear cover assembly 100, a display screen 110, a main board, a middle frame, and a camera (not shown). Mainboard and center fixed connection, display screen 110 and back lid subassembly 100 set up relatively to all with center fixed connection. The display screen 110 is used to display images, video or text information. The camera is mounted to the rear cover assembly 100 and is fixedly connected to the rear cover assembly 100.

Referring to fig. 2 and 3, fig. 2 is a schematic structural diagram of the rear cover assembly 100 in the mobile terminal 200 shown in fig. 1, and fig. 3 is an exploded structural diagram of the rear cover assembly 100 shown in fig. 2.

The rear cover assembly 100 includes a rear cover 10, a main plate bracket 30, a camera decoration 40, a fixing member 50, and a decoration sheet 60. The main board bracket 30 is used to fixedly connect the main board of the mobile terminal 200 with the middle frame, so that the main board is fixed to the middle frame. The main board bracket 30 is located between the main board and the rear cover 10, and the camera decoration 40 is installed on one side of the rear cover 10, which is back to the main board bracket 30, and is fixedly connected with the rear cover 10. The fixing member 50 is installed at a side of the camera decoration 40 facing away from the rear cover 10, and the clamping body of the main board bracket 30 passes through the camera decoration 40 to be clamped with the fixing member 50, so that the camera decoration 40, the rear cover 10 and the main board bracket 30 are fixedly connected. The decoration sheet 60 is fixed on the outer surface of the camera decoration 40 and covers the surface of the fixing member 50, that is, the decoration sheet 60 covers the fixing member 50, and the outer surface of the decoration sheet 60 is exposed out of the rear cover 10.

Referring to fig. 4, fig. 4 is a schematic structural diagram of the motherboard bracket 30 in the rear cover assembly 100 shown in fig. 2.

The main board bracket 30 includes a bracket body 31, a fixing post 32, and a retainer 33. In this embodiment, the bracket body 31 is a rectangular plate structure. In other embodiments, the motherboard bracket 30 may be circular or other shapes. The holder body 31 includes a first surface 311 and a second surface 312. The first surface 311 and the second surface 312 are oppositely disposed. The bracket body 31 is provided with a first avoiding hole 313 and a fourth avoiding hole 314, and the first avoiding hole 313 penetrates the first surface 311 and the second surface 312. In this embodiment, there are two fourth avoiding holes 314. The first avoidance hole 313 and the two fourth avoidance holes 314 are provided at intervals. The fixing post 32 is fixed on the first surface 311, and is spaced apart from the first avoiding hole 313 and the fourth avoiding hole 314, and an extending direction of the fixing post 32 is perpendicular to the first surface 311. In this embodiment, the fixing column 32 is located at the center of the bracket body 31 along the X direction.

In this embodiment, there are four retaining bodies 33. Each of the chucking bodies 33 includes a connection portion 331 and an extension portion 332. The extension portion 332 is vertically connected to one end of the connection portion 331. Of course, in other embodiments, the included angle between the extending portion 332 and the connecting portion 331 may be slightly larger than 90 degrees, or slightly smaller than 90 degrees, as long as the extending direction of the extending portion 332 intersects with the extending direction of the connecting portion 331. The four retainers 33 are fixed to the first surface 311. One end of the connecting portion 331 far away from the extending portion 332 is fixedly connected to the first surface 311, and is spaced apart from the fixing post 32. The connecting portion 331 is perpendicular to the first surface 311, and the extending portion 332 is spaced apart from the first surface 311. In this embodiment, the four retaining bodies 33 are symmetrically and uniformly distributed around the fixing post 32, and the extending portions 332 of the four retaining bodies 33 extend toward the fixing post 32. That is to say, the four clamping bodies 33 are connected to form a square, the four clamping bodies 33 are respectively located at four corners of the square, and the center position of the square formed by the four clamping bodies 33 coincides with the position of the fixing post 32. In other embodiments, the number of the holding bodies 33 may be one, two, three, or five or more. When the number of the holding bodies 33 is an even number, the plurality of holding bodies 33 are symmetrically distributed around the fixed column 32.

In this embodiment, the main board bracket 30 is used to fix the main board and the middle frame and to avoid the camera. Wherein, the mainboard is a Printed Circuit Board (PCB). The mainboard is equipped with the third hole of dodging. The third avoidance hole is arranged corresponding to the first avoidance hole 313 and is commonly used for avoiding the camera. Elements (not shown) such as a flash lamp and an auxiliary camera are fixed on the surface of the main board. The flash and the auxiliary camera are respectively disposed corresponding to the two fourth avoidance holes 314. The motherboard bracket 30 is stacked with the motherboard, and the second surface 312 faces the motherboard and is fixedly connected with the motherboard. Specifically, the main board bracket 30 may be directly fixedly connected to the main board by bolts. Of course, the fixed connection may also be achieved by means of bonding or welding. The main board is located between the middle frame and the main board support 30, and the main board support 30 is also fixedly connected with the middle frame, so that the main board is fixedly connected with the middle frame.

Referring to fig. 5, fig. 5 is a schematic structural diagram of the rear cover 10 in the rear cover assembly 100 shown in fig. 3.

The rear cover 10 includes an outer surface 11 and an inner surface 12. The outer surface 11 and the inner surface 12 are oppositely arranged, and the edge region of the rear cover 10 is bent from the outer surface 11 toward the inner surface 12. The outer surface 11 of the rear cover 10 is provided with a garnish mounting area 111. The deco mounting region 111 is located at the top of the rear cover 10 for mounting the camera deco 40. In this embodiment, the garnish mounting area 111 is circular. In other embodiments, trim piece mounting area 111 may also be rectangular or other shapes. The rear cover 10 is provided with a first mounting hole 13, a second avoidance hole 14, and a fifth avoidance hole 15. The first mounting hole 13, the second avoidance hole 14, and the fifth avoidance hole 15 all penetrate the outer surface 11 and the inner surface 12 of the rear cover 10 and are located in the garnish mounting area 111. The second avoidance hole 14 and the fifth avoidance hole 15 are provided around the first mounting hole 13, and are provided at intervals from the first mounting hole 13. The first mounting hole 13 is located at the center of the garnish mounting area 111, and the first mounting hole 13 is used to correspond to the retainer 33 and the fixing post 32 when the rear cover 10 is assembled with the main board bracket 30 and the camera garnish 40. The second avoidance hole 14 is provided corresponding to the third avoidance hole and the first avoidance hole 313, and is used for avoiding the camera together. In this embodiment, there are two fifth avoidance holes 15. The two fifth avoidance holes 15 and the two fourth avoidance holes 314 are respectively disposed correspondingly, and are used for passing light of a flash or an auxiliary camera.

It is understood that the "rear cover 10" referred to herein is a battery cover of the mobile terminal 200. The inner surface 12 of the rear cover 10 faces the main board support 30, covers the first surface 311 of the main board support 30, and is fixedly connected with the middle frame.

Referring to fig. 6, fig. 6 is a schematic structural view of a camera trim 40 in the rear cover assembly 100 shown in fig. 3.

The camera decoration 40 has a circular plate-shaped structure. In this embodiment, the thickness of the camera trim 40 is 1.0mm. In other embodiments, the thickness of camera trim piece 40 may also be slightly greater than 1.0mm, or slightly less than 1.0mm. Camera trim piece 40 includes oppositely disposed upper surface 401 and lower surface 402. Camera trim piece 40 also includes a first portion 41, a second portion 42, and a perimeter wall 43. The first portion 41 is circular and the second portion 42 is circular. The second portion 42 surrounds the periphery of the first portion 41 and is fixedly connected to the first portion 41. Perimeter wall 43 is fixedly attached to upper surface 401 and surrounds first portion 41 and second portion 42. The surfaces of the first portion 41 and the second portion 42 facing the positive Z-axis direction together constitute an upper surface 401, and the surfaces of the first portion 41 and the second portion 42 facing the negative Z-axis direction together constitute a lower surface 402.

The first portion 41 includes a convex portion 411 and a flat portion 412. The outer contour of the protrusion 411 is circular. The outer diameter of the protrusion 411 is substantially the same as the hole diameter of the first mounting hole 13. Of course, the diameter of the first mounting hole 13 may be slightly larger than the outer diameter of the protrusion 411 to facilitate the mounting of the protrusion 411 in the first mounting hole 13. The protrusion 411 is located at the center of the first portion 41, and the flat portion 412 is connected to the outer circumference of the protrusion 411. The projection 411 projects toward the lower surface 402 with respect to the flat portion 412, and forms a mounting groove 413 opening toward the upper surface 401. The mounting groove 413 includes a side wall 414 and a bottom wall 415. The side wall 414 is connected to the periphery of the bottom wall 415. A third mounting hole 44 and a second mounting hole 45 are provided in the mounting groove 413. The third mounting hole 44 is located at the center of the bottom wall 415 and penetrates the protruding portion 411 in the Z direction, and the third mounting hole 44 is disposed corresponding to the fixing post 32. The third mounting hole 44 is used for avoiding the fixing post 32 so that the fixing post 32 passes through the camera trim 40. In this embodiment, there are four second mounting holes 45. The four second mounting holes 45 are disposed on the bottom wall 415 of the mounting groove 413 and penetrate the side wall 414. The four second mounting holes 45 surround the third mounting hole 44, and are spaced apart from the third mounting hole 44. The four second mounting holes 45 are symmetrical and evenly distributed about the third mounting hole 44. That is, the four second mounting holes 45 are connected to form a square, the four second mounting holes 45 are respectively located at four corners of the square, and the center of the square formed by the four second mounting holes 45 coincides with the center of the third mounting hole 44. The four second mounting holes 45 are provided in one-to-one correspondence with the four retaining bodies 33, and one second mounting hole 45 is used for passing through one retaining body 33.

The second portion 42 is provided with a first light passing hole 421 and a second light passing hole 422. In this embodiment, there are two first light holes 421 and two second light holes 422. The first light passing hole 421 and the two second light passing holes 422 are arranged at intervals in the circumferential direction of the second portion 42. The first light passing hole 421 is disposed corresponding to the first avoiding hole 313, the third avoiding hole and the second avoiding hole 14, and is used for light to pass through and enter the camera. The two second light passing holes 422 and the two fifth avoiding holes 15 are respectively and correspondingly arranged for passing light of the flash lamp or the auxiliary camera.

The camera trim 40 is mounted on the outer surface 11 of the rear cover 10 and located in the trim mounting region 111, and the protrusion 411 of the first portion 41 is located in the first mounting hole 13 and fixedly connected to the rear cover 10. In this embodiment, the camera decorating part 40 and the rear cover 10 are sealed and fixedly connected by dispensing. In other embodiments, the camera trim 40 and the rear cover 10 may be fixed and sealed by other methods.

Referring to fig. 7, fig. 7 is a schematic structural diagram of the fixing element 50 in the rear cover assembly 100 shown in fig. 3.

The fixing member 50 has a disk shape with a thickness. The fixing member 50 has a diameter substantially the same as the inner diameter of the mounting groove 413. Of course, the diameter of the fixing member 50 may be slightly smaller than the inner diameter of the mounting groove 413, so as to facilitate the installation of the fixing member 50 in the mounting groove 413. The fixing member 50 includes a central portion 51 and an edge portion 52. The outer contour of the central portion 51 is circular. The central portion 51 includes a third surface (not shown) and a fourth surface 511. The third surface and the fourth surface 511 are oppositely disposed. The central portion 51 is provided with a fourth mounting hole 512. The fourth mounting hole 512 is located at the center of the center portion 51 and penetrates the third and fourth surfaces 511. The fourth mounting hole 512 corresponds to the third mounting hole 44, and is used to avoid the fixing post 32 so as to allow the fixing post 32 to pass through.

The edge portion 52 is circular. The edge portion 52 includes a fifth surface 521 and a sixth surface 522. The fifth surface 521 and the sixth surface 522 are oppositely disposed. The edge portion 52 is fixedly connected to the outer periphery of the central portion 51, and the fifth surface 521 faces the same side as the third surface, and the sixth surface 522 faces the same side as the fourth surface 511. The fifth surface 521 and the third surface are in the same plane, and the fourth surface 511 protrudes from the sixth surface 522. It is understood that the central portion 51 has a larger dimension in the Z direction than the edge portion 52, and the central portion 51 protrudes toward the fourth surface 511 (the positive Z-axis direction) relative to the edge portion 52.

The sixth surface 522 of the rim portion 52 is provided with a recess 523 and a projection 524. In this embodiment, four recesses 523 and four projections 524 are provided. The four recesses 523 are spaced and uniformly arranged along the circumferential direction of the rim portion 52, and the four protrusions 524 are spaced and uniformly arranged along the circumferential direction of the rim portion 52. And, a groove 523 is arranged between every two adjacent protrusions 524, and two opposite ends of each groove 523 are fixedly connected with the two adjacent protrusions 524. That is, the four recesses 523 and the four projections 524 are alternately arranged along the circumferential direction of the rim portion 52. In this embodiment, the protrusion 524 is wedge-shaped. In other embodiments, the protrusion 524 may be rectangular, circular, or the like.

The fixing member 50 is installed in the installation groove 413 of the camera decoration 40 and is clamped with the clamping body 33 of the main board bracket 30, so that the camera decoration 40, the rear cover 10 and the main board bracket 30 are fixedly connected.

Referring to fig. 8 and 9, fig. 8 isbase:Sub>A cross-sectional view of the rear cover assembly 100 of fig. 2 alongbase:Sub>A directionbase:Sub>A-base:Sub>A, and fig. 9 isbase:Sub>A partial structural schematic diagram of the rear cover assembly 100 of fig. 8.

The motherboard bracket 30 is stacked with the motherboard, and the second surface 312 faces the motherboard and is fixedly connected with the motherboard. The third avoidance hole is disposed opposite to the first avoidance hole 313. The camera trim 40 is mounted on the outer surface 11 of the rear cover 10, is located in the trim mounting region 111, and is fixedly connected to the rear cover 10. The protruding portion 411 of the first portion 41 is located in the first mounting hole 13, the first light passing hole 421 is opposite to and communicated with the second avoiding hole 14, and the two second light passing holes 422 are opposite to and communicated with the two fifth avoiding holes 15. The rear cover 10 mounted with the camera decoration 40 is covered on the first surface 311 of the main board support 30, and the inner surface 12 of the rear cover 10 faces the main board support 30. The fixing post 32 passes through the third mounting hole 44 and extends into the mounting groove 413, the clamping body 33 passes through the second mounting hole 45 and extends into the mounting groove 413, and the extending portion 332 of the clamping body 33 is spaced from the bottom wall 415 of the mounting groove 413 to form a clamping space (not shown). That is, one retaining body 33 is disposed in each second mounting hole 45, and the extending portion 332 of each retaining body 33 is spaced apart from the bottom wall 415 of the mounting groove 413.

The fixing member 50 is installed in the installation groove 413, and the third and fifth surfaces 521 face the bottom wall 415 of the installation groove 413 and contact the bottom wall 415 of the installation groove 413. The fourth mounting hole 512 is opposite to the third mounting hole 44, the fixing column 32 sequentially passes through the third mounting hole 44 and the fourth mounting hole 512, and the fixing member 50 can rotate around the fixing column 32 in the mounting groove 413. In the present embodiment, the end surface of the fixing post 32 facing away from the bracket body 31 is flush with the fourth surface 511 of the central portion 51. In other embodiments, the end surface of the fixing post 32 facing away from the bracket body 31 may also be located in the fourth mounting hole 512. The edge portion 52 is located between the bottom wall 415 of the mounting groove 413 and the extension 332 of the retainer 33. That is, the edge portion 52 is located in the holding space. The extending portion 332 abuts against the protrusion 524 of the fixing member 50 to lock the fixing member 50, so that the fixing member 50, the camera decorating member 40 and the main board support 30 are fixedly connected to fix the camera decorating member 40.

In this embodiment, through setting up mounting 50 to block through mounting 50 and mainboard support 30, can realize the fixed of camera decoration 40, need not to set up primary and secondary screw, simplified the structure of rear cover subassembly 100, reduced the cost of manufacture, and saved the overall arrangement space of mainboard, be favorable to the miniaturization of mainboard, be favorable to realizing rear cover subassembly 100 and mobile terminal 200's frivolousness. Meanwhile, the camera decoration 40 in this embodiment is not easily deformed, the tightness of the connection between the camera decoration 40 and the rear cover 10 is improved, the gap between the camera decoration 40 and the rear cover 10 is reduced, and the problem of inconsistent gap between the camera decoration 40 and the rear cover 10 due to the deformation of the camera decoration 40 is solved.

In this embodiment, the four clamping bodies 33 are arranged to clamp the fixing member 50, so that the mounting stability of the fixing member 50 is improved, and the structural stability of the rear cover assembly 100 is improved. Moreover, in this embodiment, the four clamping bodies 33 are symmetrically arranged, and the fixing member 50 is installed at the center of the camera decoration 40, so that the stress uniformity of the fixing member 50 and the camera decoration 40 is improved, the camera decoration 40 is prevented from deforming, and the structural stability of the rear cover assembly 100 is further improved.

Referring to fig. 8 and 9, in the actual installation process of the fixing element 50, the retaining body 33 may be slightly bent away from the fixing post 32, and then the third surface of the fixing element 50 faces the bottom wall 415 of the mounting groove 413, and the groove 523 is opposite to the retaining body 33 and is clamped into the mounting groove 413, so that the fixing element 50 is located between the extending portion 332 and the bottom wall 415. Then, the fixing member 50 is rotated to make the protrusions 524 face the clamping bodies 33, and the extending body of each clamping body 33 abuts against the corresponding protrusion 524, so that the clamping body 33 clamps the fixing member 50, and the fixing member 50 is fixed in the mounting groove 413, so that the main board bracket 30, the camera decorating member 40 and the fixing member 50 are fixedly connected, and the camera decorating member 40 is fixed.

In the process of detaching the fixing member 50, the fixing member 50 is rotated first, so that the protrusion 524 and the holding body 33 are arranged in a staggered manner, and the groove 523 is opposite to the holding body 33, thereby unlocking the fixing member 50 and the holding body 33. Then, the clamping body 33 is slightly bent away from the fixing post 32, and the fixing member 50 is taken out of the mounting groove 413.

In this embodiment, the protrusion 524 is disposed on the fixing member 50, and when the extending portion 332 abuts against the protrusion 524, the fixing member 50 is clamped by the clamping body 33, so as to improve the fastening performance of the fixing member 50 clamped in the mounting groove 413, and prevent the fixing member 50 and the clamping body 33 from being loosened. Meanwhile, in this embodiment, when the fixing member 50 is provided with the groove 523 and the extending portion 332 is disposed opposite to the groove 523, the clamping body 33 and the fixing member 50 are unlocked, so that the fixing member 50 is more convenient to mount and dismount. And, through setting up arch 524 into the wedge, make the card body 33 and protruding 524 adaptation more to further promoted the fastening nature that the mounting 50 held in mounting groove 413, further avoided mounting 50 and the pine of the card body 33 to take off, promoted the structural stability of rear cover assembly 100.

Referring to fig. 2 and 3, the rear cover assembly 100 further includes a decorative sheet 60. The decorative sheet 60 has a circular sheet-like structure. The decoration sheet 60 is mounted to the first portion 41 of the camera decoration 40 and covers the first portion 41, and the fixing member 50 is located between the decoration sheet 60 and the camera decoration 40. That is, the projection of the decorative sheet 60 on the first portion 41 completely covers the first portion 41. The outer peripheral edge of the decorative sheet 60 abuts against the surrounding wall 43 of the camera decorative member 40. In this embodiment, the decoration sheet 60 and the surface of the fixing element 50, and the decoration sheet 60 and the camera decoration 40 are fixedly connected by dispensing. In other embodiments, the decorative sheet 60 and the fixing element 50, and the decorative sheet 60 and the camera trim 40 may be fixedly connected by welding or other methods.

In this embodiment, the decorative sheet 60 is disposed to shield the fixing member 50 and the structure in the mounting groove 413, so as to improve the appearance consistency and the appearance of the rear cover assembly 100. Moreover, by arranging the decoration sheet 60 and fixedly connecting the decoration sheet 60 with the fixing member 50 and the camera decoration 40, the fixing member 50 can be further fixed, so that the fixing member 50 is prevented from rotating in the mounting groove 413 and being unlocked with the clamping body 33, and the structural stability of the rear cover assembly 100 is improved.

The above are only some examples and embodiments of the present application, and the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A rear cover assembly applied to a mobile terminal, the rear cover assembly comprising: the camera comprises a main board bracket, a rear cover, a camera decorating part and a fixing part;

the main board support comprises a support body and a clamping body, and the clamping body is fixed on the surface of the support body;

the rear cover is provided with a first mounting hole, the camera decorating part is provided with a mounting groove, a second mounting hole is formed in the bottom wall of the mounting groove, the rear cover covers the surface of the main board support provided with the clamping body, the camera decorating part is mounted on the surface of the rear cover back to the main board support, the bottom wall of the mounting groove is located in the first mounting hole, and the clamping body is located in the first mounting hole and penetrates through the second mounting hole to extend into the mounting groove;

the fixing piece is arranged in the mounting groove, and the fixing piece and the clamping body are clamped.

2. The rear cover assembly as claimed in claim 1, wherein the fixing member includes an edge portion, a protrusion is provided on a surface of the edge portion, and when the retainer and the protrusion are disposed in a staggered manner, the retainer and the fixing member are unlocked; and rotating the fixing piece to enable the clamping body and the protrusion to be oppositely arranged and to be abutted against the protrusion, and clamping the fixing piece by the clamping body.

3. The rear cover assembly as claimed in claim 2, wherein the retainer includes a connecting portion and an extending portion, the connecting portion is fixedly connected to the extending portion, the extending direction of the connecting portion intersects the extending direction of the extending portion, and one end of the connecting portion, which faces away from the extending portion, is fixedly connected to the surface of the bracket body; the extension part is positioned in the mounting groove and is arranged at intervals with the bottom wall of the mounting groove to form a clamping space, and the edge part is positioned in the clamping space.

4. The rear cover assembly as claimed in claim 3, wherein when the retaining member is retained with the fixing member, the extending portion is disposed opposite to the protrusion and abuts against the protrusion; when the clamping body and the fixing piece are unlocked, the extending part and the protrusion are arranged in a staggered mode.

5. The rear cover assembly as claimed in claim 2, wherein the protrusion is rectangular, wedge-shaped or circular.

6. The rear cover assembly according to any one of claims 2 to 5, wherein there are at least two second mounting holes, at least two second mounting holes are symmetrically disposed with respect to a center of the camera decoration piece, there are at least two retaining bodies, at least two retaining bodies are disposed at intervals, at least two retaining bodies are disposed in one-to-one correspondence with at least two second mounting holes, and one retaining body extends into the mounting groove through one second mounting hole.

7. The rear cover assembly as claimed in claim 6, wherein the number of the clamping bodies is four, the centers of the four clamping bodies are located at four corners of a square, the number of the second mounting holes is four, the four second mounting holes are arranged in one-to-one correspondence with the four clamping bodies, and one clamping body passes through one second mounting hole and extends into the mounting groove.

8. The rear cover assembly as claimed in claim 7, wherein the number of the protrusions is four, four protrusions are arranged at intervals along the circumferential direction of the edge portion, and four protrusions are arranged in one-to-one correspondence with four of the retainers; when the clamping bodies and the fixing piece are clamped, each clamping body is arranged opposite to and abutted against the corresponding bulge; when the clamping bodies and the fixing piece are unlocked, the four clamping bodies and the protrusions are arranged in a staggered mode.

9. The rear cover assembly as claimed in claim 8, wherein the main board support further comprises a fixing post vertically connected to the surface of the support body, located at the center of a square formed by connecting the centers of the four clamping bodies, and spaced from the four clamping bodies; the camera decoration is provided with a third mounting hole, the third mounting hole is located in the center of the camera decoration, the fixing piece is provided with a fourth mounting hole, the fourth mounting hole is located in the center of the fixing piece, and the fixing column is arranged in the third mounting hole and the fourth mounting hole.

10. The rear cover assembly according to claim 1, wherein the main board support is provided with a first avoiding hole, the rear cover is provided with a second avoiding hole, the camera decoration is provided with a light passing hole, the first avoiding hole, the second avoiding hole and the light passing hole are oppositely arranged and communicated and are commonly used for installing the camera of the mobile terminal, and the light passing hole is also used for allowing light outside the mobile terminal to enter the camera.

11. The rear cover assembly as claimed in claim 1, further comprising a decorative sheet fixed to a surface of the camera garnish facing away from the rear cover, and the fixing member is located between the decorative sheet and the camera garnish.

12. The rear cover assembly as set forth in claim 11, wherein an orthographic projection of the decorative sheet on the fixing member completely covers the fixing member, and the decorative sheet is fixedly coupled with the fixing member.

13. A mobile terminal, comprising a middle frame, a display screen and the rear cover assembly of any one of claims 1 to 12, wherein the rear cover assembly and the display screen are arranged oppositely and are fixedly connected with the middle frame.

14. The mobile terminal according to claim 13, further comprising a main board, wherein the main board is located on a side of the main board bracket facing away from the rear cover and is fixedly connected to the main board bracket, and the main board bracket is fixedly connected to the middle frame.