Electronic device and method for assembling the same

Abstract

The embodiment of the present application discloses an electronic device and an assembly method of the electronic device, wherein the electronic device includes a screen, a middle frame and an optical module, wherein the frame body of the middle frame includes three frame parts, wherein the first frame part and the second frame part are parallel and the same side ends of the two are fixedly connected by the third frame part; each frame part includes a front frame wall, a rear frame wall and a side frame wall, wherein the outer side edge of the front frame wall and the outer side edge of the rear frame wall are fixedly connected by the side frame wall; a support wall extending forward is fixedly connected to the outer side edge of the front frame wall; the front surface of the front frame wall is used to support and fix the screen, and the support wall is located outside the edge of the screen; and the optical module is located between the front frame wall and the rear frame wall. By improving the structure of the middle frame, the problem of a large screen frame of the existing electronic device is solved.

Description

Technical Field

[0001] The present application relates to the field of terminal technology, and in particular to an electronic device and an assembly method of the electronic device. Background Art

[0002] With the development of electronic products, consumers pay more and more attention to the appearance quality of electronic products. For electronic devices with screens, especially larger-screen products, such as TVs, electronic display devices displayed in shopping malls, or electronic display devices for outdoor use, they are gradually developing in the direction of ultra-thin, borderless, and large size.

[0003] An existing electronic device, such as Fig.18 As shown, the frame 01 has a mounting groove with a U-shaped cross-section, and the rear shell (not shown) cooperates with the back frame wall of the middle frame 01 to form a accommodating space for the screen 02 and the back plate 04 on which the optical module 03 is installed. The edges of the back plate 04 and the screen 02 are both located in the mounting groove of the middle frame 01, and the back plate 04 is arranged between the screen 02 and the rear shell; in order to support and fix the screen 02, the electronic device is also provided with a transition frame 05, which is located on the inner side of the middle frame 01, including a side frame plate 051 parallel to the side frame wall 011 of the middle frame 01 and a support frame plate 052 vertically fixed to the side frame plate 051, the support frame plate 052 is fixed to the side of the side frame plate 051 away from the middle frame, the support frame plate 052 is arranged parallel to the screen 02, and its front side is used to support and fix the screen 02, and the optical module 03 is located on the back side of the support frame plate 052.

[0004] In the structure of the above electronic device, due to the setting of the transition structure, the front frame wall of the middle frame is relatively large in size in order to cover the edge of the screen, which cannot meet the development demand of borderless electronic devices. Summary of the invention

[0005] The embodiments of the present application provide an electronic device and an assembly method of the electronic device. The structural design of the electronic device can solve the problem of a large screen frame of the electronic device.

[0006] A first aspect of an embodiment of the present application provides an electronic device, including a screen, a middle frame and an optical module, the middle frame includes a frame body, the frame body is a frame structure with an opening on one side, and includes three frame parts, wherein a first frame part and a second frame part are arranged in parallel, and the same side ends of the first frame part and the second frame part are fixedly connected by a third frame part, that is, the ends of the first frame part and the second frame part away from the third frame part are open; each frame part of the frame body includes a front frame wall, a rear frame wall and a side frame wall, the outer side edge of the front frame wall and the outer side edge of the rear frame wall are fixedly connected by the side frame wall, and the outer side edge of the front frame wall is fixedly connected with a supporting wall extending forward; the front surface of the front frame wall is used to support and fix the screen, and obviously, the three supporting walls of the frame body form a frame structure for limiting the position of the screen; the optical module is located between the front frame wall and the rear frame wall, that is, the edge of the optical module is inserted into the groove structure formed between the front frame wall and the rear frame wall, and does not interfere with the screen.

[0007] That is, the electronic device includes a screen, a middle frame and an optical module, the middle frame includes a frame body, the frame body is a frame structure with one side open, and includes three frame parts, wherein the first frame part and the second frame part are arranged in parallel, and the same-side ends of the first frame part and the second frame part are fixedly connected by the third frame part, that is, the ends of the first frame part and the second frame part away from the third frame part are open ends; each frame part of the frame body includes a first frame wall, a second frame wall and a third frame wall, the first frame wall and the second frame wall are arranged opposite to each other, and the third frame wall connects the first side edge of the first frame wall and the first side edge of the second frame wall; the first side edge of the first frame wall is the first side edge of the third frame wall A side edge of a frame wall away from the center of the screen, a first side edge of the second frame wall is a side edge of the second frame wall away from the center of the screen, the first side edge of the first frame wall is also fixedly connected to a supporting wall, and the supporting wall extends in a direction away from the second frame wall; a surface of the first frame wall away from the second frame wall is used to support and fix the screen, and the screen is located in a frame structure surrounded by the supporting walls, that is, the three supporting walls of the frame body form a frame structure that limits the position of the screen; the optical module is located between the first frame wall and the second frame wall, that is, the edge of the optical module is inserted into the groove structure formed between the first frame wall and the second frame wall, and does not interfere with the screen.

[0008] By improving the middle frame structure, the electronic device allows the screen and the optical module to be directly assembled with the middle frame, eliminating the setting of the transition frame. The screen is supported and fixed by the front frame wall of the middle frame, and the edge limitation is achieved by the support wall of the middle frame. The size of the support wall can be designed to be narrow, which solves the problem of large screen frame size of existing electronic devices.

[0009] Based on the first aspect, the embodiment of the present application also provides a first implementation of the first aspect: the electronic device also includes a back panel for assembly with the optical module, the frame body wraps around the edge of the back panel, that is, the rear frame wall is located on the rear side of the back panel, and the side edge of the back panel corresponding to at least one frame position has a folded edge extending forward, and the folded edge is located between the front frame wall and the rear frame wall of the frame; the electronic device also includes a pressing member and a flexible diaphragm, that is, the diaphragm can be bent, the first part of the diaphragm is fixed to the outer side surface of the folded edge and abuts against the side frame wall of the frame at the corresponding position, the second part of the diaphragm is bent inward and is located between the front frame wall of the frame at the corresponding position and the optical module, and the pressing member is fixed to the second part of the diaphragm and faces the optical module.

[0010] That is, the electronic device also includes a back panel for assembling with the optical module, the frame body wraps around the edge of the back panel, that is, the second frame wall is located on the side of the back panel away from the first frame wall, and the side edge of the back panel has a folded edge extending in the direction of the first frame wall, and the folded edge is located between the first frame wall and the second frame wall of the frame portion; the electronic device also includes a pressing member and a flexible diaphragm, that is, the diaphragm can be bent, the first part of the diaphragm is fixedly connected to the side of the folded edge away from the center of the electronic device and abuts against the side frame wall of the frame portion, the second part of the diaphragm is bent toward the center of the electronic device and is located between the front frame wall of the frame portion and the optical module, and the pressing member is fixedly connected to the second part of the diaphragm facing the optical module.

[0011] In this way, the pressing part is fixed on the diaphragm. Through the folded edge of the back plate and the above-mentioned setting of the diaphragm, the second part of the diaphragm can be pressed toward the optical module during the assembly process of the frame body and the back plate with the optical module installed, so as to prevent the pressing part from falling off or scratching the optical film group during the assembly process.

[0012] Based on the first implementation of the first aspect, the present application also provides a second implementation of the first aspect: the membrane has a mark, which is used to demarcate the first part and the second part. In this way, the assembly of the membrane fixed with the pressing member and the back plate is facilitated.

[0013] Based on the first embodiment of the first aspect, or the second embodiment of the first aspect, the embodiment of the present application further provides a third embodiment of the first aspect: the diaphragm is a Mylar sheet. Mylar sheet (MYLAR sheet) is a thin film, which can be a PET polyester film, which is a film formed by heating dimethyl terephthalate and ethylene glycol with the assistance of relevant catalysts, undergoing ester exchange and vacuum polycondensation, and biaxial stretching. In this way, using Mylar sheet as a diaphragm has the advantages of being not easy to deform and having good hardness, and can avoid undesirable phenomena such as displacement of the position of the pressing member.

[0014] Based on any one of the first to third implementations of the first aspect, the embodiment of the present application further provides a fourth implementation of the first aspect: the pressing member is foam. The foam is a material made of foamed plastic particles, which has the advantages of light weight, good elasticity and thin volume, and can press against the optical module well without causing damage to the optical module or affecting the thickness of the electronic device.

[0015] Based on the first aspect, or any one of the first to fourth embodiments of the first aspect, an embodiment of the present application also provides a fifth embodiment of the first aspect: each frame portion of the frame body also includes a connecting wall fixedly connected to the inner side edge of the rear frame wall, and the connecting wall is used to be fixedly connected to the back panel of the electronic device.

[0016] That is, each frame portion of the frame body further includes a connecting wall fixedly connected to the side edge of the second frame wall close to the center of the electronic device, and the connecting wall is used for fixed connection with the back plate of the electronic device.

[0017] In this way, the groove structure formed by the front frame wall, rear frame wall and side frame wall of the frame body can directly cooperate with the back plate, and there is no need to set a fixed structure between the back plate and the aforementioned groove structure. The frame body can play a certain limiting role in the deformation of the back plate.

[0018] Based on the fifth implementation of the first aspect, the embodiment of the present application also provides a sixth implementation of the first aspect: the connecting walls of the first frame portion and the second frame portion of the frame body both include a first wall and a second wall, wherein the first wall is fixedly connected to the rear frame wall of the corresponding frame portion through the second wall, the distance between the first wall and the screen is greater than the distance between the rear frame wall and the screen, and the first wall is away from the side frame wall of the corresponding frame portion relative to the rear frame wall.

[0019] That is, the connecting wall of the first frame part and the second frame part of the frame body both include a first wall and a second wall, wherein the first wall is fixedly connected to the second frame wall of the frame part through the second wall, the first wall is away from the first frame wall relative to the second frame wall, and the first wall is away from the third frame wall relative to the second frame wall.

[0020] Based on the fifth implementation of the first aspect, the embodiment of the present application further provides a seventh implementation of the first aspect: the connecting wall of the third frame portion of the frame body includes an extending wall extending inwardly from the inner side edge of the rear frame wall of the third frame portion.

[0021] That is, the connecting wall of the third frame portion of the frame body includes an extending wall extending toward the center of the electronic device from a side of the second frame wall of the third frame portion close to the center of the electronic device.

[0022] Based on the first aspect, or any one of the first to seventh embodiments of the first aspect, the embodiment of the present application further provides an eighth embodiment of the first aspect: the frame body is an integrally formed structure. In this way, it is possible to avoid providing a connection structure between adjacent frame parts of the frame body, simplify the structure, and also improve the strength of the frame body.

[0023] Based on the first aspect, or any one of the first to eighth embodiments of the first aspect, the embodiment of the present application also provides a ninth embodiment of the first aspect: the electronic device also includes a back shell, which is buckled on the frame body, and the edge of the back shell is against the back frame wall of the frame body.

[0024] That is, the electronic device further comprises a shell member, which is buckled on the frame body, and the edge of the shell member abuts against the second frame wall of the frame body.

[0025] In this way, the back panel of the electronic device can be prevented from being exposed, and the rear frame wall, side frame wall and supporting wall of the frame body of the middle frame serve as the appearance surface of the electronic device, that is, the exposed surface or visible surface under normal use, which facilitates surface treatment of each appearance surface without restriction.

[0026] A second aspect of an embodiment of the present application provides an assembly method of an electronic device, the electronic device comprising a screen, a back plate, a middle frame and an optical module, the middle frame comprising a frame body, the frame body being a frame structure with one side open, the frame body comprising three frame parts, wherein a first frame part and a second frame part are arranged in parallel, and the same side ends of the first frame part and the second frame part are fixedly connected by a third frame part; each frame part of the frame body comprises a front frame wall, a rear frame wall and a side frame wall, the outer side edge of the front frame wall and the outer side edge of the rear frame wall are fixedly connected by the side frame wall, and the outer side edge of the front frame wall is fixedly connected with a supporting wall extending forward; in this way, a groove structure with an opening facing inward is formed between the front frame wall, the rear frame wall and the side frame wall of each frame part of the frame body;

[0027] The assembly method of the electronic device comprises: assembling an optical module with a back panel, installing the assembled optical module and back panel into the frame body from the opening side of the frame body, inserting the edges of the optical module and the back panel between the front frame wall and the rear frame wall of the corresponding frame part, and fixing the back panel and the rear frame wall; during assembly, the back panel is close to the rear frame wall of the frame body, and the optical module is close to the front frame wall; after the back panel and the rear frame wall of the frame body are fixed, embedding the screen in the area enclosed by the three supporting walls of the frame body, and fixing it with the three front frame walls of the frame body.

[0028] The assembly method enables the back plate assembled with the optical module and the frame body to be assembled in a drawer-like plug-in and pull-out assembly manner, which is simple and quick to assemble and can reduce assembly time.

[0029] Based on the second aspect, the embodiment of the present application also provides a first implementation of the second aspect: the electronic device includes a flexible diaphragm and an elastic pressing member, the pressing member is fixed to the second part of the diaphragm, and the side of the back panel corresponding to the position of at least one frame portion has a forward folded edge; before assembling the back panel and the frame body, the diaphragm is also fixed to each folded edge of the back panel, and the first part of the diaphragm is fixed to the outer surface of the folded edge, wherein the pressing member faces the side where the optical module is located, that is, the side of the diaphragm fixed to the folded edge and the side of the diaphragm fixed to the pressing member are the same side, and the second part of the diaphragm is bent toward the side where the optical module is located, so that the pressing member can press against the optical module; then the back panel assembled with the diaphragm and the optical module is assembled with the frame body, and during assembly, the second part of the diaphragm is pressed toward the optical module through the front frame wall of the frame portion at the corresponding position.

[0030] In this way, during assembly, the second part of the diaphragm is pressed toward the optical module by relying on the movement of the front frame wall of the frame body relative to the back plate and the optical module, and the relative position of the second part of the diaphragm is limited, so that the pressing part fixed on the second part of the diaphragm can press against the optical module to prevent the optical module from jumping off. In this assembly method, the pressing part only has a pressing action toward the optical module, and there is no frictional movement between the two, which can prevent the pressing part from scratching the optical module. At the same time, the pressing part is relatively fixed to the back plate through the diaphragm. During assembly, there is no interference with the frame body, and the problem of the pressing part falling off during the assembly process is also avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A front view of an electronic device provided by an embodiment of the present application;

[0032] Figure 2 for Figure 1 a rear view of the electronic device shown;

[0033] Figure 3 for Figure 1 a left side view of the electronic device shown;

[0034] Figure 4 A schematic diagram of an axial view of an electronic device provided in an embodiment of the present application;

[0035] Figure 5 for Figure 4 A partial enlarged schematic diagram of the middle A area;

[0036] Figure 6 An exploded diagram of an electronic device provided in one embodiment of the present application;

[0037] Figure 7 for Figure 6 A main view of the frame body of the middle frame;

[0038] Figure 8 for Figure 7 A partial enlarged schematic diagram of the B part;

[0039] Fig. 9 for Figure 7 A partial enlarged schematic diagram of the middle C area;

[0040] Fig.10 for Figure 7 a rear view of the main body of the frame shown;

[0041] Fig.11 It is a schematic diagram of the DD section in 7;

[0042] Fig.12 A partial cross-sectional schematic diagram of an electronic device provided in one embodiment of the present application;

[0043] Fig.13 A schematic diagram of the structure of a pressing component of an electronic device provided in an embodiment of the present application;

[0044] Fig.14 for Fig.13 A schematic cross-sectional view of the pressing component shown;

[0045] Fig.15 for Fig.13 A schematic diagram of the structure of the diaphragm of the pressing component after being fixed to the back plate;

[0046] Fig.16 for Fig.15 A schematic diagram of the structure of the diaphragm of the medium pressure resisting assembly after bending, the back plate and the optical module;

[0047] Fig.17 A schematic cross-sectional view of an electronic device at a frame portion provided by an embodiment of the present application;

[0048] Fig.18 The present invention is a cross-sectional schematic diagram of an existing electronic device at the middle frame position. DETAILED DESCRIPTION

[0049] The embodiments of the present application provide an electronic device and an assembly method of the electronic device. The electronic device may be any terminal product having a screen.

[0050] The present application embodiment provides an electronic device, such as Figure 1 As shown, the electronic device includes a screen 10, such as Figure 2 and Figure 3 As shown, the electronic device further includes a middle frame 30 and a rear shell 50 opposite to the screen 10. Figure 2In the rear-view angle shown, the left frame portion 311, the right frame portion 312 and the top frame portion 313 of the rear shell 50 and the middle frame 30 are visible; the middle frame 30 is an overall U-shaped frame structure, which is relatively fixed to the rear shell 50, and the screen 10 is located on the front side of the middle frame 30. The three together form a space for accommodating components such as the back panel 20 and the optical module 40 (not shown) of the electronic device.

[0051] like Figure 6 As shown, the middle frame 30 of the electronic device includes a frame body 31 and a ground side frame 32. Figure 7 and Fig.10 The frame body 31 is a frame structure with an opening on one side, including three frame parts. For the convenience of description, the three frame parts are respectively referred to as a left frame part 311, a right frame part 312 and a sky side frame part 313. The left frame part 311 and the right frame part 312 are parallel to each other. The sky side frame part 313 is fixedly connected between the sky side end of the left frame part 311 and the sky side end of the right frame part 312. The aforementioned ground side frame 32 can be fixedly connected between the ground side end of the left frame part 311 and the ground side end of the right frame part 312. In this way, the frame body 31 and the ground side frame 32 are assembled to form a middle frame 30.

[0052] It should be noted here that the limitations of the above-mentioned directional words are defined based on the user facing the electronic device in normal use. Left refers to the left side of the user, right refers to the right side of the user, the sky side refers to the side close to the sky, that is, the top side, and the ground side refers to the side close to the ground, that is, the bottom side; the same directional words mentioned below are to be understood in the same way as this limitation; it can be understood that the use of these directional words is only for the convenience of describing and understanding the technical solution, and does not constitute a limitation on the scope of protection.

[0053] In this embodiment, the main structures of the three frame parts of the frame body 31 are consistent. Figure 8 , Fig. 9 and Fig.11 Each frame portion includes a front frame wall 314, a rear frame wall 315, a side frame wall 316 and a supporting wall 317, wherein the side frame wall 316 is fixedly connected between the outer sides of the front frame wall 314 and the outer sides of the rear frame wall 315, so that the front frame wall 314, the rear frame wall 315 and the side frame wall 316 form a groove structure with an opening facing inward, and the supporting wall 317 extends forward from the outer side of the front frame wall 314, so that a step structure is formed between the supporting wall 317 and the front frame wall 314.

[0054] In order to facilitate the assembly of the side frame 32 with the left frame portion 311 and the right frame portion 312, as shown in FIG. Figure 8As shown, a bent portion 3111 bent toward the right frame portion 312 is provided at the ground side end of the left frame portion 311 to form a connection portion with the ground side frame 32; similarly, a bent structure bent toward the left frame portion 311 is provided at the ground side end of the right frame portion 312 to connect with the ground side frame 32. In this embodiment, the left frame portion 311 and the right frame portion 312 are symmetrical structures.

[0055] It should be noted here that the above-mentioned directional word "front" refers to the side close to the screen 10, and correspondingly, "rear" refers to the side away from the screen 10, that is, the side close to the rear shell 50, and "inside" refers to the side close to the center of the screen 10, and correspondingly, "outside" refers to the side away from the center of the screen 10; the same directional words mentioned below are understood in the same way. The use of these directional words is also for the convenience of describing and understanding the technical solution, and does not constitute a limitation on the scope of protection.

[0056] Please refer to Fig.12 and Fig.17 , the optical module 40 of the electronic device is assembled with the back plate 20, and the plastic part 70 is fixed on the circumference of the back plate 20 to support and fix the optical module 40. Specifically, the plastic part 70 can be fixed on the back plate 20 by adhesive bonding such as adhesive, and the back plate 20 assembled with the optical module 40 is located between the front frame wall 314 and the rear frame wall 315 of the frame body 31, that is, the left edge, the sky side edge and the right edge of the back plate 20 and the optical module 40 are respectively inserted into the groove structure of the left frame part 311, the groove structure of the sky side frame part 313 and the groove structure of the right frame part 312, so as to limit the relative position of the back plate 20 and the related components fixed thereon. Among them, the edge of the back plate 20 overlaps the rear frame wall 315 of the frame body 31, that is, the frame body 31 wraps the edge of the back plate 20, and the optical module 40 is close to the front frame wall 314 and is located on the rear side of the front frame wall 314.

[0057] like Fig.12 As shown, the front surface of the front frame wall 314 of the frame body 31 is used to support and fix the screen 10, and the support wall 317 of the frame body 31 is located outside the edge of the screen 10, that is, the support wall 317 limits the relative position of the screen 10 and the frame body 31.

[0058] The structural setting of the middle frame 30 of the above-mentioned electronic device enables the screen 10, the back panel 20 and the optical module 40 to be directly assembled with the frame body 31 of the middle frame 30, eliminating the transition structure and simplifying the structure of the electronic device. At the same time, the screen 10 is supported and fixed by the front frame wall 314 of the middle frame 30, and the support wall 317 is located at the edge of the screen 10, which can limit the position of the screen 10. The size of the support wall 317 is relatively unrestricted and can be designed to be relatively narrow, which solves the problem of large screen frame size of existing electronic devices and can meet the development needs of borderless electronic devices.

[0059] In this embodiment, among the three frame parts of the frame body 31, at least one frame part has a front frame wall 314 and an optical module 40 provided with an elastic pressing member 62 for pressing against the optical module 40. Fig.17 The arrangement of the pressing member 62 can prevent the optical module 40 from jumping off, and the elastic pressing member 62 can also play a buffering role, and when accidentally impacted by external force, the optical module 40 can be protected to avoid damage due to friction between the optical module 40 and the front frame wall 314.

[0060] In order to achieve better limiting and protective effects, a pressing member 62 is provided between the front frame wall 314 of the three frame parts of the frame body 31 and the optical module 40. In this embodiment, the pressing member 62 is a long strip structure extending along the corresponding edge of the optical module 40, which is convenient for assembly. Of course, in other embodiments, the pressing member 62 can also be a plurality of block structures or strip structures arranged at intervals along the length direction of the corresponding edge of the optical module 40.

[0061] Please refer to Fig.13 and Fig.14 In this embodiment, in order to facilitate the assembly of the pressing member 62, the electronic device is further provided with a flexible diaphragm 61. For the convenience of description, a diaphragm 61 and a pressing member 62 fixed thereon are referred to as a pressing assembly.

[0062] The diaphragm 61 is a flexible structure, that is, the diaphragm 61 can be bent, and the diaphragm 61 is a strip structure with a length substantially equal to that of the front frame wall 314 of the corresponding frame portion, such as Fig.13 As shown, the diaphragm 61 is divided into a first part 611 and a second part 612, wherein the combination Fig.14 The pressing member 62 is fixedly connected to the second portion 612 of the diaphragm 61 . Specifically, the pressing member 62 can be bonded and fixed to the second portion 612 of the diaphragm 61 by means of a backing adhesive 631 .

[0063] like Fig.17 As shown, one side edge of the back plate 20 corresponding to a frame portion has a folded edge 21 extending forward, and the folded edge 21 is located between the front frame wall 314 and the rear frame wall 315 of the corresponding frame portion.

[0064] Please refer to Fig.15 and Fig.16 When the pressing component is assembled with the back plate 20 on which the optical film group 40 is installed, as shown in FIG. Fig.15As shown, the first part 611 of the diaphragm 61 is first fixed to the outer side surface of the folded edge 21 (i.e., the side relatively far away from the optical module 40 or the side relatively close to the middle frame 30), wherein the side of the diaphragm 61 fixed to the folded edge 21 and the side of the diaphragm 61 on which the pressing member 62 is fixed are the same surface, so that after the diaphragm 61 is fixed to the folded edge 21 of the back plate 20, the pressing member 62 fixed thereon faces the side of the optical module 40; because the diaphragm 61 is flexible, the second part 612 of the diaphragm 61 can be bent, and the second part 612 of the diaphragm 61 is bent toward the optical module 40, so that the pressing member 62 fixed to the second part 612 of the diaphragm 61 can press against the optical module 40, as shown in FIG. Fig.16 shown.

[0065] Among them, Fig.13 and Fig.14 As shown, the first part 611 of the diaphragm 61 can be bonded and fixed to the folded edge 21 by the second adhesive 632 , which is convenient and reliable. Obviously, the second adhesive 632 and the pressing member 62 are both located on the surface of the same side of the diaphragm 61 .

[0066] It should be noted that in the actual assembly process, after the second portion of the diaphragm 61 is bent, it may not appear due to its flexibility. Fig.16 In the state shown in which the second portion of the membrane 61 is completely attached to the optical module 40 , it is possible that the second portion of the membrane 61 will rebound. However, the bending operation facilitates the subsequent assembly with the frame body 31 .

[0067] Fig.16 After the structure shown is assembled with the frame body 31, Fig.17 As shown, that is, in the electronic device, the first part 611 of the diaphragm 61 is pressed against the side frame wall 316 of the frame body 31, and the second part 612 is pressed against the front frame wall 314 of the frame body 31, ensuring that the pressing member 62 can press against the optical module 40 to prevent it from jumping off.

[0068] In this embodiment, in order to reduce the difficulty of assembly, the membrane 61 is provided with a mark for dividing the first part 611 and the second part 612, such as Fig.13 As shown, the mark can be specifically a folding line 613 extending along the length direction of the membrane 61. In this way, during assembly, the membrane 61 can be pre-folded at the folding line 613, and then the first part 611 of the membrane 61 is bonded to the folded edge 21 of the back plate 20. In this way, the assembly efficiency can be improved. Fig.14As shown, the pre-folding operation can ensure that the folding line 613 of the diaphragm 61 is aligned with the front end surface of the folded edge 21, so as to ensure that after the second part 612 is bent, the pressing member 62 fixed thereon can press against the optical module 40. The mark in the form of the folding line 613 can ensure that the diaphragm 61 is well matched with the folded edge 21 in the entire length direction, and avoid the diaphragm 61 from being skewed during bonding. Of course, in other embodiments, the mark can also be in other forms besides the form of the folding line 613 mentioned above. For example, at the folding position of the diaphragm 61, a notch is provided at a certain distance along the length direction of the diaphragm 61. The notch can be processed by punching. Obviously, these notches are located in a straight line. These notches arranged along a straight line form the aforementioned mark, which facilitates the bending of the diaphragm 61.

[0069] In this embodiment, the diaphragm 61 uses Mylar film, which is a thin film, and can be a PET polyester film, which is made by heating dimethyl terephthalate and ethylene glycol with the assistance of relevant catalysts, and undergoing ester exchange and vacuum polycondensation, and biaxial stretching. Mylar film has the advantages of being not easy to deform and having good hardness, which can avoid undesirable phenomena such as the position of the pressing member 62 being offset. When the diaphragm 61 uses Mylar film, its identification can use the above-mentioned notch form, because the hardness of the Mylar film is good, and setting the notch form of the identification helps the Mylar film to bend. Of course, in other embodiments, the diaphragm 61 can also use other flexible films.

[0070] In this embodiment, the pressing member 62 is made of foam, which is a material made of foamed plastic particles and has the advantages of light weight, good elasticity and thin volume. It can press against the optical module 40 well without causing damage to the optical module 40 or affecting the thickness of the electronic device.

[0071] In this embodiment, each frame portion of the frame body 31 further includes a connecting wall fixedly connected to the inner side edge of the rear frame wall 315, and the connecting wall is used to be fixedly connected to the back plate 20 of the electronic device. In this way, the groove structure formed by the front frame wall 314, the rear frame wall 315 and the side frame wall 316 of each frame portion of the frame body 31 can directly cooperate with the back plate 20, and the back plate 20 and the aforementioned groove structure do not need to be provided with a fixing structure. The structural setting of the frame body 31 can play a certain role in limiting the deformation of the back plate 20, thereby playing a certain role in limiting the deformation of the entire device.

[0072] refer to Figures 7 to 12In this embodiment, the connecting wall structures of the left frame portion 311 and the right frame portion 312 of the frame body 31 are the same, and both include a first wall 3181 and a second wall 3182, wherein the first wall 3181 is connected to the rear frame wall 315 through the second wall 3182, and the first wall 3181 is located at the rear side of the rear frame wall 315 of the corresponding frame portion, that is, the distance between the first wall 3181 and the screen 10 is greater than the distance between the rear frame wall 315 and the screen 10, and the first wall 3181 is away from the side frame wall 316 relative to the rear frame wall 315, that is, the first wall 3181, the second wall 3182 and the rear frame wall 315 form a step structure, as shown in FIG. Fig.12 As shown, the back panel 20 is also a step structure at the corresponding position; the first wall 3181 is provided with a plurality of mounting positions along its length direction (i.e., the height direction of the electronic device), and the corresponding position on the back panel 20 is also provided with a mounting position, and the first wall 3181 and the back panel 20 can be fixedly connected by fasteners such as bolts or screws.

[0073] The length of the connecting wall between the left frame portion 311 and the right frame portion 312 can be set to be smaller than the length of the frame portion to avoid interference with the connecting structure of the top frame portion 313 or the connecting structure of the ground frame 32. Here, the length of the frame portion and the length of the connecting wall both refer to the dimension in the direction from the top frame portion 313 to the ground frame 32 (or from the ground frame 32 to the top frame portion 313), that is, the dimension in the height direction of the electronic device in a normal use state.

[0074] In this embodiment, if Figure 7 , Fig. 9 and Fig.10 As shown, the connecting wall structure of the sky side frame portion 313 of the frame body 31 is an extension wall 319 extending inward from the inner side edge of the rear frame wall 315 thereof (i.e., extending toward the ground side frame 31), that is, the extension wall 319 and the rear frame wall 315 are in the same plane, and a plurality of mounting positions are provided in the length direction of the extension wall 319 so as to be fixedly connected with the back plate 20. It can be understood that the extension wall 319 is a part of the sky side frame portion 313.

[0075] The “several” mentioned above is not limited to a specific number and can be one or more than two.

[0076] In other embodiments, the connecting wall between the left frame portion 311 and the right frame portion 312 may also be a structure similar to the extending wall 319 of the sky-side frame portion 313 .

[0077] Combination Figure 4 , Figure 5 and Fig.12In this embodiment, the rear shell 50 of the electronic device is buckled on the frame body 31, and the edge of the rear shell 50 abuts against the rear frame wall 315 of the frame body 31. In this way, after the rear shell 50 and the middle frame 30 are matched, the back plate 20 of the electronic device is built-in without gaps and there is no risk of light leakage. Fig.12 As shown, the rear shell 50 and the back plate 20 are relatively fixed by fasteners such as bolts or screws, so that the rear shell 50 and the middle frame 30 are relatively fixed. It can be understood that there is also a receiving space between the rear shell 50 and the back plate 20, which can be used to receive other components of the electronic device.

[0078] After being configured as above, the middle frame 30 and the rear shell 50 of the electronic device are the appearance parts of the electronic device, that is, the exposed parts or visible parts under normal use. The appearance surface of the middle frame 30 includes the rear surface of the rear frame wall 315, the outer surface of the side frame wall 316 and the front surface of the support wall 317.

[0079] Generally speaking, the front surface of the support wall 317 is the surface that the user often sees under normal use, which can be called the primary surface or Class A surface. The outer surface of the side frame wall 316 is the surface that the user occasionally sees under normal use, which is called the secondary surface or Class B surface. The rear surface of the rear frame wall 315 is the surface that the user generally does not see under normal use, which can be called the tertiary surface or Class C surface.

[0080] In this way, the aforementioned primary surface, secondary surface and tertiary surface of the middle frame 30 can be processed differently in appearance as needed to obtain different visual effects, without worrying about the impact on the EMC (Electro-Magnetic Compatibility) electrostatic grounding effect, and there is no restriction on the appearance processing method of each level of surface.

[0081] In this embodiment, the frame body 31 is an integrally formed structure, that is, the left frame portion 311, the right frame portion 312 and the sky side frame portion 313 are integrally formed, which can avoid the need for additional connection structures between adjacent frame portions, simplify the structure and improve the strength of the frame body 31.

[0082] In practical applications, one method of integrally forming the frame body 31 is as follows: forming the cross-sectional shape of the frame body 31 in one step by an extrusion process. Fig.11The rod-shaped member shown in the figure has a length determined according to the total length of the three frame parts of the frame body 31. Afterwards, a bending seam is processed at the set position of the rod-shaped member or a material removal operation is performed at the bending position. It can be understood that there are four bending positions, which are the connection between the left frame part 311 and the sky side frame part 313, the connection between the sky side frame part 313 and the right frame part 312, the ground side end of the left frame part 311, and the ground side end of the right frame part 312. Then, the two bending positions at the sky side end are bent and fixed by welding. Afterwards, the formed sky side frame part 313 is removed from the material as needed to form the rear frame wall 315 and the extension wall 319 of the sky side frame part 313, as shown in FIG. Fig. 9 As shown, the corresponding parts of the formed left frame part 311 and the right frame part 312 can also be removed as needed.

[0083] Of course, the cross-section of the rod-shaped member formed in the extrusion process can also be Fig.11 The shape of the first wall 3181 and the second wall 3182 is removed from the left frame portion 311 and the right frame portion 312 to form a shape similar to an inverted F shape. After that, after removing the corresponding parts, a bending operation is performed at the positions corresponding to the left frame portion 311 and the right frame portion 312 to form Fig.11 The shapes of the first wall 3181 and the second wall 3182 are shown.

[0084] In addition, if the material used to make the frame body 31 is not suitable for the extrusion process, the structure of the frame body 31 can also be integrally formed by injection molding, and the specific method can be selected according to actual application requirements.

[0085] An embodiment of the present application further provides an assembly method of an electronic device, wherein the electronic device is the electronic device introduced in the above embodiment, which will not be repeated here.

[0086] In this embodiment, the assembly method of the electronic device includes:

[0087] Assemble the optical module 40 and the back plate 20 together; the assembly method of the optical module 40 and the back plate 20 is as described above and will not be repeated;

[0088] The pressing component is fixed on the back plate 20 on which the optical module 40 is installed, wherein the number of the pressing components is determined according to actual needs, and a pressing component can be fixed on the left side, right side and top side of the back plate 20; the first part 611 of the diaphragm 61 of the pressing component is fixed on the folded edge 21 of the back plate 20, the pressing member 62 fixed on the diaphragm 61 faces the optical module 40, and the second part 612 of the diaphragm 61 is bent toward the optical module 40; wherein the assembly of the pressing component and the specific fixing method thereof to the folded edge 21 of the back plate 20 are also as described above, and will not be repeated;

[0089] The back plate 20 assembled with the optical module 40 and the pressing component is installed into the frame body 31 from the opening side (i.e., the opening at the ground side end) of the frame body 31. During assembly, the front frame wall 314 presses the second portion 612 of the diaphragm 61 toward the optical module 40. Specifically, the back plate 20 can be kept stationary and the frame body 31 can be moved toward the direction of the back plate 20, or the frame body 31 can be kept stationary and the back plate 20 can be moved toward the direction of the frame body 31. Since the frame body 31 has a groove structure that matches the back plate 20, the assembly movement of the two can be regarded as similar to the insertion and withdrawal movement of a drawer, and the assembly is relatively convenient. Afterwards, the back plate 20 and the rear frame wall 315 of the frame body 31 are fixed.

[0090] After fixing the back plate 20 and the frame body 31, the screen 10 is embedded in the area enclosed by the supporting wall 317 of the frame body 31 and fixed on the front frame wall 314. Specifically, the screen 10 can be bonded and fixed to the front frame wall 314 by adhesive.

[0091] After the screen 10 and the frame body 31 are assembled, the side frame 32 is assembled with the frame body 31 , and then other components of the electronic device are installed on the rear side of the back plate 20 . Finally, the rear shell 50 is snapped onto the frame body 31 and fixed to the back plate 20 .

[0092] The assembly method is simple and fast, wherein a structural setting of a pressing component is adopted, and the frame body 31 and the back plate 20 are assembled. During the assembly process, the front frame wall 314 of the frame body 31 presses the second part 612 of the diaphragm 61 fixed with the pressing member 62 toward the optical module 40, and limits the position of the second part 612 of the diaphragm 61, so that after assembly, the pressing member 62 fixed on the second part 612 can better press against the optical module 40 to prevent the optical module 40 from jumping off. During assembly, there is only relative pressing action between the pressing member 62 and the optical module 40, and there is no frictional movement between the two, which can avoid scratching the optical module 40. At the same time, the frame body 31 and the pressing member 62 will not interfere with each other during the assembly process, avoiding the problem of the pressing member 62 falling off during assembly.

[0093] It should be noted that, during the assembly process of the above-mentioned components, if there is no impact on each other, there is no necessary order of precedence.

[0094] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An electronic device, comprising a screen, a middle frame and an optical module; characterized in that: The middle frame includes a frame body, and the frame body includes three frame parts, wherein the first frame part and the second frame part are arranged in parallel, and the third frame part is fixed between the same side ends of the first frame part and the second frame part; Each of the frame parts comprises a front frame wall, a rear frame wall and a side frame wall, the outer side edge of the front frame wall and the outer side edge of the rear frame wall are fixedly connected by the side frame wall; the outer side edge of the front frame wall is fixedly connected with a supporting wall extending forward; The front surface of the front frame wall is used to support and fix the screen, and the supporting wall is located outside the edge of the screen; The optical module is located between the front frame wall and the rear frame wall; the electronic device further comprises a back plate for assembling with the optical module, the frame body wraps around the edge of the back plate; the side edge of the back plate has a folded edge extending forward, and the folded edge is located between the front frame wall and the rear frame wall of the frame portion; The electronic device also includes a diaphragm, which is a flexible structure. The diaphragm includes a first part and a second part that are bent and connected, wherein the first part of the diaphragm is fixedly connected to the outer side of the folded edge, and the second part of the diaphragm is located between the front frame wall of the frame and the optical module.

2. The electronic device according to claim 1, characterized in that: The electronic device further comprises a pressing member, which is fixedly connected to the second portion of the diaphragm and faces the optical module.

3. The electronic device according to claim 1, characterized in that: The membrane has a mark for dividing the first part and the second part.

4. The electronic device according to any one of claims 1 to 3, characterized in that: The diaphragm is a Mylar film.

5. The electronic device according to claim 2, characterized in that: The pressing member is foam.

6. The electronic device according to any one of claims 1 to 3 and 5, characterized in that: Each of the frame parts further comprises a connecting wall of the rear frame wall, and the connecting wall is used for fixedly connecting with the back plate of the electronic device.

7. The electronic device according to claim 6, characterized in that: The connecting walls of the first frame portion and the second frame portion each include a first wall and a second wall, the first wall is fixedly connected to the rear frame wall of the corresponding frame portion through the second wall, the distance between the first wall and the screen is greater than the distance between the rear frame wall and the screen, and the first wall is away from the side frame wall of the corresponding frame portion relative to the rear frame wall.

8. The electronic device according to claim 6, characterized in that: The connecting wall of the third frame portion includes an extending wall extending inwardly from the inner side edge of the rear frame wall of the third frame portion.

9. The electronic device according to any one of claims 1 to 3 and 5, characterized in that: The frame body is an integrally formed structure.

10. The electronic device according to any one of claims 1 to 3 and 5, characterized in that: It also includes a rear shell, which is buckled on the frame body, and the edge of the rear shell abuts against the rear frame wall of the frame body.

11. An assembly method of an electronic device, the electronic device comprising a screen, a back panel, a middle frame and an optical module; characterized in that: The middle frame includes a frame body, which is a frame structure with one side open, and the frame body includes three frame parts, wherein the first frame part and the second frame part are arranged in parallel, and the third frame part is fixedly connected between the same side ends of the first frame part and the second frame part; each of the frame parts includes a front frame wall, a rear frame wall and a side frame wall, and the outer side edge of the front frame wall and the outer side edge of the rear frame wall are fixedly connected by the side frame wall; the outer side edge of the front frame wall is fixedly connected with a supporting wall extending forward; the side edge of the back plate corresponding to the position of at least one frame part has a folded edge facing forward; the electronic device includes a diaphragm, which is a flexible structure and includes a first part and a second part connected by bending; The assembly method comprises: Assembling the optical module with the back panel; Fixing the first part of the film to the outer surface of the folded edge, and bending the second part of the film toward the side where the optical module is located; The back plate of the assembled optical module is installed into the frame body from the opening side of the frame body, so that the edges of the optical module and the back plate are inserted between the front frame wall and the rear frame wall of the corresponding frame part, so that the second part of the membrane is located between the front frame wall and the optical module, and the back plate and the rear frame wall are fixed; during assembly, the optical module is close to the front frame wall of the frame body, and the back plate is close to the rear frame wall of the frame body; After the back plate and the rear frame wall are fixed, the screen is embedded in the area enclosed by the supporting walls and fixed on the front frame walls of the frame body.

12. The method for assembling an electronic device according to claim 11, characterized in that: The electronic device comprises an elastic pressing member, wherein the pressing member is fixedly connected to the second part of the diaphragm; When the first part of the diaphragm is fixed to the outer surface of the folded edge, the pressing part faces the side where the optical module is located, and the second part of the diaphragm is bent toward the side where the optical module is located, so that the pressing part can press against the optical module; during assembly, the second part of the diaphragm is pressed against the optical module through the front frame wall of the frame part at the corresponding position.

Images