Middle frame assembly, manufacturing method of middle frame assembly and terminal equipment

Abstract

The invention discloses a middle frame assembly, a manufacturing method of the middle frame assembly and terminal equipment. The middle frame assembly comprises a protection piece, a connecting piece and a bearing plate. The protection piece comprises an outer frame body. The connecting piece is fixedly arranged on the inner side wall of the outer frame body. At least part of the bearing plate is arranged on the inner side of the outer frame body, and the bearing plate is fixedly connected with the outer frame body through a connecting piece. Wherein the strength of the protective part is greater than that of the bearing plate. The middle frame assembly has good protection performance, the manufacturing difficulty can be reduced, and the production cost of the terminal equipment can be reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic technology, and in particular to a middle frame assembly, a method for manufacturing the middle frame assembly, and a terminal device. Background Art

[0002] Mobile phones, tablet computers and other terminal devices have become indispensable technology products in people's life, study and entertainment. At present, most terminal devices use the middle frame assembly to carry related electronic devices, and the middle frame is used as an external protective part, which can also bring better holding experience and protective performance, and thus it is increasingly favored by consumers.

[0003] In the related art, in order to improve the strength of the protective parts of the middle frame, some middle frame components are made of metal alloys with better strength. However, the high strength of the metal alloy also leads to high processing difficulty and high manufacturing cost, which is not conducive to reducing the cost of terminal equipment. Summary of the invention

[0004] The present disclosure provides a middle frame assembly, a manufacturing method of the middle frame assembly, and a terminal device. The middle frame assembly has good protection performance, can reduce the manufacturing difficulty, and is conducive to reducing the production cost of the terminal device.

[0005] The technical solution is as follows:

[0006] According to a first aspect of an embodiment of the present disclosure, a middle frame assembly is provided, comprising a protective member, a connecting member and a bearing plate. The protective member comprises an outer frame. The connecting member is fixedly arranged on the inner side wall of the outer frame. At least part of the bearing plate is arranged on the inner side of the outer frame, and the bearing plate is fixedly connected to the outer frame through the connecting member. The strength of the protective member is greater than the strength of the bearing plate.

[0007] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0008] The connecting piece is used to connect the bearing plates with different strengths to the outer frame, so that the stronger outer frame can be used as a protective frame. The bearing plates with lower strength are used to set the structural features required for the bearing device, which is easy to manufacture. In this way, the middle frame assembly has good protection performance, and can reduce the difficulty of manufacturing and reduce production costs.

[0009] The technical solution of the present disclosure is further described below:

[0010] In one embodiment, the material of the protective element and the material of the carrying plate are metal materials, and the density of the carrying plate is lower than the density of the protective element.

[0011] In one embodiment, the protective member is at least one of titanium metal, titanium alloy, and stainless steel alloy, and the supporting plate is at least one of aluminum metal, magnesium metal, aluminum alloy, or magnesium alloy.

[0012] And / or, the material of the protective member is metal, and the connecting member is welded and fixed to the outer frame and / or formed as one piece.

[0013] And / or, the protective member is die-casted with the supporting plate through the connecting member.

[0014] And / or, the connecting members include at least two, and at least two connecting members are arranged at intervals along the circumference of the outer frame.

[0015] In one of the embodiments, at least one of the connecting member and / or the outer frame includes at least one of a first protrusion and a first recess, which is inlaid and matched with the supporting plate.

[0016] In one of the embodiments, the first recess includes at least one of a first connection hole and a first connection groove;

[0017] And / or, the carrying plate includes a first connecting portion embedded in the first recess.

[0018] In one embodiment, the connecting members include at least two and are spaced apart along the inner side of the outer frame;

[0019] And / or, at least one connecting member is provided with a plurality of first connecting holes.

[0020] In one embodiment, the first recess includes a first connecting hole, and the first connecting portion includes a first connecting body that is embedded and matched with the first connecting hole.

[0021] And / or, the first recessed portion includes a first connecting groove, and the first connecting portion includes a second connecting body that is embedded and matched with the first connecting groove.

[0022] In one embodiment, the outer frame includes an outer frame surface spaced apart from the first connector and an inner side surface disposed opposite to the outer frame surface, and the first connecting groove is provided with a notch in the direction from the outer frame surface to the inner side surface, and the first connecting groove and the first connecting portion are anti-disengagement matched in the direction from the outer frame surface to the inner side surface.

[0023] In one embodiment, the first recess includes a first connecting groove and a first connecting hole arranged at the bottom of the first connecting groove, and the first connecting portion includes a first connecting body embedded in the first connecting hole and a second connecting body embedded in the first connecting groove.

[0024] In one embodiment, the first connection hole is a through hole, and the depth direction of the first connection hole is arranged along the thickness direction of the outer frame.

[0025] In one embodiment, the first connection grooves include two and are spaced apart at two ends of the first connection hole. The second connection bodies correspond to the first connection grooves one by one and are spaced apart and fixed at two ends of the first connection body.

[0026] In one embodiment, the outer frame includes a first mating surface, which is adjacent to the first connecting portion along the thickness direction of the outer frame, and is disposed close to an outer edge of the outer frame relative to the first connecting portion. The middle frame assembly also includes an insulating member, which at least partially covers the first mating surface and the first connecting body.

[0027] In one embodiment, the outer frame includes an outer frame surface and an inner side surface arranged opposite to the outer frame surface. Along the direction from the outer frame surface to the inner side surface, at least a portion of the supporting metal part is spaced apart from the first mating surface to form a receiving groove, and at least a portion of the insulating part is filled in the receiving groove and covers the first mating surface and the first connector.

[0028] And / or, the first mating surfaces include two, which are spaced apart at two ends of the first connecting hole, and the insulating member at least partially covers the two first mating surfaces and the two first connectors.

[0029] In one embodiment, the middle frame assembly further includes an insulating member, and the insulating member is fixedly connected to the bearing plate and the protective member.

[0030] In one embodiment, the material of the protective member, the connecting member and the supporting plate is metal. A portion of the outer frame and a portion of the supporting plate are spaced apart to form an antenna gap, so that the portion of the outer frame forms a frame antenna, or the portion of the outer frame and one of the other portions of the connecting member and the supporting plate form a frame antenna.

[0031] In one of the embodiments, at least one of the outer frame, the connector and the carrier plate is provided with a radiation branch connected to the frame antenna.

[0032] In one of the embodiments, on the orthographic projection plane in the thickness direction of the middle frame assembly, at least one of a portion of the outer frame, at least a portion of the connector, and a portion of the carrier plate is protruded from the antenna gap to form a radiation branch.

[0033] In one embodiment, the carrier plate includes a carrier body and a connecting body, at least a portion of the carrier body is spaced apart from the frame antenna to form an antenna gap, and the connecting body cooperates with the outer frame to form the frame antenna. There are at least two connecting members, which are spaced apart along the circumference of the outer frame.

[0034] The bearing body is fixedly connected to at least one connecting member, and the connecting body is fixedly connected to a connecting member to form radiating branches.

[0035] In one embodiment, the connecting body includes a first body fixedly connected to the connecting member and a second body bently connected to the first body, and the second body is spaced apart from the bearing body along the thickness direction of the middle frame assembly to form a radiation branch.

[0036] In one of the embodiments, the connecting body includes a feeder connected to the frame antenna feeder, and the feeder is fixedly connected to the outer frame through a connecting piece.

[0037] In one embodiment, the feeder is provided with an internal threaded hole. Alternatively, the middle frame assembly further includes a nut, at least a portion of which is embedded in the feeder.

[0038] And / or, the frame antenna includes a first antenna provided with a feeder, and the first antenna includes at least three radiation branches.

[0039] In one of the embodiments, the connecting body includes a grounding conductor connected to the frame antenna ground, and the grounding conductor is fixedly connected to the outer frame through a connecting piece.

[0040] And / or, the frame antenna includes a second antenna provided with a ground conductor, and the second antenna includes at least three radiation branches.

[0041] In one of the embodiments, the middle frame assembly further includes an insulating member fixedly connected to the carrier plate and the protective member, and a portion of the insulating member is filled in the antenna gap.

[0042] In one embodiment, at least a portion of the outer frame is spaced apart from at least a portion of the carrying plate to form a receiving groove, and at least a portion of the insulating member is filled in the receiving groove.

[0043] And / or, at least one of the protective member, the connecting member and the supporting plate is provided with a second connecting portion, and the second connecting portion is embedded and matched with the insulating member.

[0044] In one embodiment, the second connecting portion includes at least one of a second protrusion and a second recess.

[0045] In one embodiment, the second recess includes one of a second connecting hole or a second connecting groove.

[0046] And / or, the insulating member is provided with an embedded body embedded in the second recess.

[0047] In one embodiment, the second connecting parts include at least two and are spaced apart along the inner side of the outer frame.

[0048] And / or, at least one second connection portion is provided with a plurality of second connection holes.

[0049] In one of the embodiments, the outer frame includes a first end portion provided with a radiation branch, the first end portion is spaced apart from other portions of the outer frame to form a gap, and the gap is connected to the antenna gap.

[0050] Wherein, at least a portion of the insulating member is filled in the fracture.

[0051] In one of the embodiments, the first end portion includes at least one of a third protrusion and a third recess.

[0052] And / or, the connecting member is fixedly connected to the connecting body and the outer frame, and cooperates with part of the insulating member to form a frame.

[0053] In one embodiment, the third recess includes at least one of a third connecting hole and a third connecting groove.

[0054] In one of the embodiments, on the orthographic projection plane in the thickness direction of the middle frame assembly, a portion of the first end portion is inclined.

[0055] In one of the embodiments, on the orthographic projection plane in the thickness direction of the middle frame assembly, along the direction away from the frame antenna, at least a portion of the first end portion is inclined toward a direction close to the carrying board.

[0056] Alternatively, the first end includes a first body spaced apart from other parts of the outer frame to form a gap and a second body bent and connected to the first body. On the orthographic projection plane in the thickness direction of the middle frame assembly, along the width direction of the antenna slot, the second body is inclined toward the direction close to the carrier board.

[0057] In one embodiment, the second body includes a first side wall for forming a fracture. On the orthographic projection plane in the thickness direction of the middle frame assembly, at least a portion of the first side wall is arc-shaped and bends in a direction away from the frame antenna.

[0058] According to a second aspect of an embodiment of the present disclosure, a method for manufacturing a middle frame assembly is further provided, which is applied to the middle frame assembly in any of the above embodiments. The manufacturing method includes:

[0059] Protective parts and connecting parts are manufactured.

[0060] The protective member and the connecting member are placed in the die cavity of the die casting mold, and the molten metal is injected into the die cavity of the die casting mold. After the molten metal solidifies, a carrier plate is obtained, and a part of the carrier plate is inlaid with the connecting member to form a middle frame assembly.

[0061] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0062] The die-casting process is used to easily realize the inlaying and matching of the bearing plate and the connecting piece, so that the bearing plate and the outer frame of the protective piece are connected into a whole. It is convenient to use the outer frame with stronger strength as a protective frame. The structural features required by the bearing device are set by using the bearing plate with lower strength, which is easy to manufacture. In this way, the manufacturing method of the middle frame assembly is conducive to reducing the manufacturing difficulty of the middle frame assembly and improving production efficiency while ensuring the protective performance of the middle frame assembly.

[0063] The technical solution of the present disclosure is further described below:

[0064] In one embodiment, the manufacturing method further includes: placing the middle frame assembly in a mold cavity of an injection mold, and injecting an insulating liquid into the mold cavity of the injection mold. After the insulating liquid solidifies, an insulating member is obtained, and a portion of the carrier plate and a portion of the protective member are inlaid and matched with the insulating member.

[0065] In one of the embodiments, before placing the metal component in the mold cavity of the injection mold, the manufacturing method further includes: performing material removal processing on the middle frame component to form at least one of an antenna gap, an antenna break, and a second connecting portion on the middle frame component.

[0066] In one embodiment, the process of manufacturing the protective element includes:

[0067] The titanium alloy profile is forged into the outer frame metal.

[0068] The outer frame metal is de-materialized to form a protective part.

[0069] In one of the embodiments, the chip removal process of the outer frame metal includes forming a connecting piece having a first connecting hole and / or a first connecting groove in the outer shell metal.

[0070] According to a third aspect of the embodiments of the present disclosure, a terminal device is further provided, comprising an electronic device and a middle frame assembly in any of the above embodiments, wherein the electronic device is arranged in the middle frame assembly.

[0071] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0072] The terminal device applies the middle frame assembly in any of the above embodiments, so that the terminal device has good protection performance and is conducive to reducing the production cost of the terminal device.

[0073] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] BRIEF DESCRIPTION OF THE DRAWINGS The drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The illustrative embodiments of the present disclosure and the description thereof are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure.

[0075] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0076] Figure 1 It is a schematic diagram of the structure of a terminal device shown in an embodiment.

[0077] Figure 2 It is a schematic diagram of the partial structure of a middle frame assembly shown in an embodiment.

[0078] Figure 3 for Figure 2 The structural explosion diagram of the middle frame assembly is shown.

[0079] Figure 4 for Figure 3 The diagram shows an exploded view of the structure of the middle frame assembly from another perspective.

[0080] Figure 5 It is a schematic diagram of the partial structure of a middle frame assembly shown in another embodiment.

[0081] Figure 6 for Figure 5 A half-section schematic diagram of the middle frame assembly in the width direction is shown.

[0082] Figure 7 for Figure 5 The structural explosion diagram of the middle frame assembly is shown.

[0083] Figure 8 It is a schematic diagram of the partial structure of a protective element shown in an embodiment.

[0084] Fig. 9 FIG. 4 is a schematic diagram of a first recess shown in an embodiment.

[0085] Fig.10 Schematic diagram of the structure of a first antenna shown in an embodiment.

[0086] Fig.11 FIG. 4 is a schematic diagram of the structure of a second antenna shown in an embodiment.

[0087] Fig.12 for Fig.11 A partial exploded schematic diagram of the connecting body and the supporting body is shown.

[0088] Fig.13 for Fig.11 A partially enlarged schematic diagram of the first end of the frame antenna is shown.

[0089] Fig.14 Schematic diagram of the hardware structure of a terminal device shown in an embodiment.

[0090] Description of reference numerals:

[0091] 10. Terminal device; 11. Middle frame assembly; 11a. Frame antenna; 101. First antenna; 102. Second antenna; 103. First end; 103a. Third recess; 103b. First body; 103c. Second body; 1031. First side wall; 11b. Antenna gap; 11c. Radiation branch; 11d. Break; 100. Protective element; 110. Outer frame; 111. Outer frame surface; 112. Inner side surface; 200. Connector; 210. First protrusion; 220. First recess; 221. First connection hole; 222. First connection groove; 201. Notch; 223. First mating surface; 300. Carrying board; 310. Carrying body; 320, connecting body; 321, first body; 322, second body; 323, feeding body; 301, internal threaded hole; 324, grounding conductor; 330, first connecting part; 331, first connecting body; 332, second connecting body; 340, second connecting part; 341, accommodating groove; 342, second connecting groove; 343, second connecting hole; 400, insulating part; 410, embedded body; 12, electronic device; 12a, processing component; 12b, memory; 12c, power supply component; 12d, multimedia component; 12e, audio component; 12f, input / output interface; 12g, sensor component; 12h, communication component. DETAILED DESCRIPTION

[0092] In order to make the purpose, technical solution and advantages of the present disclosure more clear, the present disclosure is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the present disclosure and do not limit the protection scope of the present disclosure.

[0093] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present disclosure belongs. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0094] Mobile phones, tablet computers, wearable devices and other terminal devices have become indispensable technology products in people's lives, learning and entertainment. With the development of diversified functions of terminal devices, there are many types and brands of terminal devices, which makes it possible for consumers to choose from a lot of terminal devices. How to win the favor of consumers has become an issue that terminal device manufacturers pay more and more attention to.

[0095] At present, with the development of terminal devices, most terminal devices will use middle frame components to carry related electronic devices, and the middle frame is used as an external protective structure, which can also bring better holding experience and protective performance, and thus is increasingly favored by consumers.

[0096] In the related art, in order to improve the protection strength of the middle frame, some middle frame components are made of metal alloys with better strength. However, the high strength of the metal alloy also leads to high processing difficulty and high manufacturing cost, which is not conducive to reducing the cost of terminal equipment.

[0097] Based on this, it is necessary to provide a middle frame assembly with good protection performance and capable of reducing production costs.

[0098] In order to better understand the middle frame assembly of the present disclosure, an explanation is given below in conjunction with a terminal device to which the middle frame assembly is applied.

[0099] like Figure 1 As shown, in some embodiments of the present disclosure, a terminal device 10 is provided, including a middle frame assembly 11 and an electronic device 12 , wherein the electronic device 12 is disposed in the middle frame assembly 11 .

[0100] Among them, Figures 2 to 4 As shown, the middle frame assembly 11 includes a protective member 100, a connecting member 200 and a bearing plate 300. The protective member 100 includes an outer frame 110. The connecting member 200 is fixed to the inner side wall of the outer frame 110. At least part of the bearing plate 300 is arranged on the inner side of the outer frame 110, and the bearing plate 300 is fixedly connected to the outer frame 110 through the connecting member 200. Among them, the strength of the protective member 100 is greater than the strength of the bearing plate 300. In this way, the bearing plate 300 with different strengths is connected to the outer frame 110 by the connecting member 200, so that the outer frame 110 with stronger strength can be used as a protective frame. And the structural features required for the bearing device are set by using the bearing plate 300 with lower strength, which is easy to manufacture. In this way, the middle frame assembly 11 has good protection performance, and can reduce the manufacturing difficulty and reduce the production cost.

[0101] The terminal device 10 applies the above-mentioned middle frame assembly 11 , so that the terminal device 10 has good protection performance and is conducive to reducing the production cost of the terminal device 10 .

[0102] It should be noted that the bearing plate 300 should be understood in a broad sense, and the bearing plate 300 may have various specific structures, for example, at least a portion of the bearing plate 300 is in a plate shape to form a bearing structure of a bearing surface.

[0103] Optionally, in some embodiments, the bearing plate 300 is provided with a plate body and a connecting plate arranged at the edge of the plate body. At least one of the plate body and the connecting plate is provided with a bearing structure.

[0104] Optionally, in some embodiments, the electronic device 12 includes at least one of a display screen, a control mainboard, and the like.

[0105] In some embodiments, the material of the protective member 100 and the material of the carrier plate 300 are metal materials, and the density of the carrier plate 300 is less than the density of the protective member 100. In this way, the middle frame assembly 11 can meet the needs of the terminal device 10 to be thin and light, which is conducive to achieving the lightweight of the terminal device 10 and convenient to hold and / or carry.

[0106] In addition, by utilizing the metal properties of the protective member 100 and the carrier plate 300 , at least one of a shielding structure, a grounding structure, an antenna structure, etc. may be formed on the middle frame assembly 11 .

[0107] In some embodiments, the protective member 100 is at least one of titanium metal, titanium alloy, and stainless steel alloy. In this way, the outer frame 110 has good strength, good corrosion resistance, and good wear resistance, further improving the performance of the terminal device 10. The carrier plate 300 is at least one of aluminum metal, magnesium metal, aluminum alloy, or magnesium alloy. It is easy to manufacture and is conducive to achieving lightweight of the middle frame assembly 11.

[0108] Optionally, the protective member 100 is titanium alloy and the carrier plate 300 is aluminum alloy. The processing difficulty of the middle frame assembly 11 is low, which is conducive to reducing the cost of large-area processing (especially CNC processing cost). Titanium alloy can also be used for protection and to improve the texture of the terminal device 10.

[0109] In some embodiments, the material of the protective member 100 and the material of the connecting member 200 are metal materials, and the connecting member 200 and the outer frame 110 are welded and fixed and / or integrally formed, which is easy to assemble and helps to reduce costs.

[0110] In one example, the material of the protective member 100 and the material of the connecting member 200 are titanium alloy, and the two are integrally formed, which is helpful to reduce the assembly process, reduce the assembly error, and make the protective member 100 and the connecting member 200 firmly connected.

[0111] In some embodiments, the protective member 100 is die-casted through the connecting member 200 and the carrier plate 300. This helps to reduce assembly processes, reduce assembly errors, and ensure that the protective member 100 is firmly connected to the carrier plate 300, thereby obtaining a reliably connected middle frame assembly 11.

[0112] In some embodiments, the connector 200 includes at least two connectors 200, and at least two connectors 200 are spaced apart along the circumference of the outer frame 110. In this way, at least two connectors 200 are used to form multiple connection points between the outer frame 110 and the carrier plate 300, thereby improving the connection strength between the two.

[0113] It should be noted that there may be multiple ways to fix the connection between the connecting member 200 and the carrying plate 300 , including but not limited to at least one of embedding fit, snap fit, etc.

[0114] In some embodiments, at least one of the connector 200 and / or the outer frame 110 includes at least one of the first protrusion 210 and the first recess 220, and is embedded with the carrier board 300. In this way, by embedding at least one of the first protrusion 210 and the first recess 220 with the connector 200, the connection area between the two can be increased, so that the connector 200 and the carrier board 300 are firmly fixed.

[0115] In addition, the first convex portion 210 and the first concave portion 220 can be easily integrated with the carrier plate 300 by die casting or injection molding.

[0116] It should be noted that there may be many specific implementations of the first convex portion 210, including but not limited to structures such as protrusions, convex ridges, convex hooks, and anti-slip convex strips.

[0117] In addition, at least one of the connector 200 and / or the outer frame 110 includes a plurality of first protrusions 210. Or at least one of the connector 200 and / or the outer frame 110 includes a plurality of first recesses 220. Or at least one of the connector 200 and / or the outer frame 110 includes the cooperation of at least one first protrusion 210 and at least one first recess 220.

[0118] It should be noted that there may be many specific implementations of the first recess 220 , including but not limited to structures such as a groove, a notch, a cavity, and a concave hole.

[0119] like Figure 3 , Figure 4 as well as Figure 8As shown, in some embodiments, the first recess 220 includes at least one of a first connection hole 221 and a first connection groove 222. In this way, it is convenient to flow the liquid in the die-casting or injection molding process of the carrier plate 300 into at least one of the first connection hole 221 and the first connection groove 222, so that the liquid is fixed, and the connector 200 and / or the outer frame 110 are embedded and fixed with the carrier plate 300, the assembly efficiency is high, and the production cost of the middle frame assembly 11 is further reduced.

[0120] Optionally, in some embodiments, the carrier plate 300 includes a first connecting portion 330 embedded in the first recess 220. Thus, the first connecting portion 330 can be inserted into the first recess 220 to achieve embedding and fixing of the carrier plate 300 with the connector 200 and / or the outer frame 110.

[0121] like Fig. 9 As shown, in some embodiments, at least one connecting member 200 is provided with a plurality of first connecting holes 221. Thus, the connection area between the connecting member 200 and the carrier plate 300 can be increased by using a plurality of first connecting holes 221, further increasing the bonding strength between the two.

[0122] In one example, after the connecting member 200 and the protective member 100 are integrally formed, a plurality of first connecting holes 221 of the connecting member 200 or the protective member 100 are roughened to increase the titanium-aluminum bonding strength and the bonding area.

[0123] Alternatively, if Fig. 9 As shown, a plurality of first connection holes 221 form an array of microholes on the connection member 200 .

[0124] like Figure 3 as well as Figure 4 As shown, in some embodiments, the first recess 220 includes a first connection hole 221, and the first connection portion 330 includes a first connection body 331 embedded with the first connection hole 221. In this way, through the embedding and matching of the first connection hole 221 and the first connection body 331, it is convenient to form a connection structure inside the two, improve the anti-slip performance, and realize the embedding and fixing of the bearing plate 300 and the connecting member 200 and / or the outer frame 110.

[0125] like Figure 3 as well as Figure 4 As shown, in some embodiments, the first recess 220 includes a first connection groove 222, and the first connection portion 330 includes a second connection body 332 that is embedded and matched with the first connection groove 222. In this way, through the embedding and matching of the first connection groove 222 and the second connection body 332, a connection structure is formed on the surfaces of the two, so that the carrier plate 300 and the connection member 200 and / or the outer frame 110 are embedded and fixed.

[0126] Alternatively, if Figure 4As shown, in some embodiments, the outer frame 110 includes an outer frame surface 111 spaced relatively from the first connector 331 and an inner side surface 112 arranged relatively from the outer frame surface 111, and the first connecting groove 222 is provided with a notch 201 along the direction from the outer frame surface 111 to the inner side surface 112. And the first connecting groove 222 and the first connecting portion 330 are anti-detachment matched in the direction from the outer frame surface 111 to the inner side surface 112. In this way, the notch 201 is used to facilitate the liquid carrier plate 300 to flow into the first connecting groove 222 to solidify and form the first connector 331. Through the anti-detachment match between the first connecting groove 222 and the first connector 331, the outer frame 110 and the carrier plate 300 are more tightly connected in the width and / or length direction of the middle frame assembly 11.

[0127] It should be noted that the specific structure of the first connecting groove 222 can be various, such as a special-shaped groove, a polygonal groove, a partial circular groove, a partial elliptical groove, etc.

[0128] like Figure 3 , Figure 4 as well as Figure 6 As shown, in some embodiments, the first concave portion 220 includes a first connection groove 222 and a first connection hole 221 disposed at the bottom of the first connection groove 222, and the first connection portion 330 includes a first connection body 331 inlaid with the first connection hole 221 and a second connection body 332 inlaid with the first connection groove 222. In this way, it is convenient to use the first connection groove 222 to introduce the liquid carrier plate 300 into the first connection hole 221, so as to solidify in the first connection hole 221 and the first connection groove 222 to form an integrally formed first connection body 331 and a second connection body 332, thereby improving the connection strength between the outer frame 110 and the carrier plate 300.

[0129] Reference Figure 1 and Figure 6 As shown, the width direction of the middle frame assembly is the X-axis direction, the length direction is the Y-axis direction, and the thickness direction is the Z-axis direction. The smaller the thickness direction (Z-axis direction) of the middle frame assembly is, the lighter and thinner the terminal device will be.

[0130] like Figure 3 , Figure 4 as well as Figure 6As shown, in some embodiments, the first connection hole 221 is a through hole, and the depth direction of the first connection hole 221 is arranged along the thickness direction (Z direction) of the outer frame 110. In this way, the liquid carrier plate 300 is introduced into the first connection hole 221 by using the first connection groove 222, and flows out from the other side of the first connection hole 221, so as to solidify in the first connection hole 221 and the first connection groove 222 to form an integrally formed first connection body 331 and second connection body 332, and at the same time, a clamping body that is clamped and matched with the second connection body 332 can be formed on the other side of the first connection hole 221, thereby preventing the carrier from being separated from the outer frame 110 along the thickness direction of the middle frame assembly 11, and further improving the connection strength between the outer frame 110 and the carrier plate 300.

[0131] like Figure 3 , Figure 4 as well as Figure 6 As shown, in some embodiments, the first connection grooves 222 include two, which are spaced apart at both ends of the first connection hole 221. The second connection bodies 332 correspond to the first connection grooves 222 one by one, and are spaced apart and fixed at both ends of the first connection body 331. In this way, the liquid carrier plate 300 is introduced into the first connection hole 221 by using the first connection grooves 222, and flows into another first connection groove 222 from the other side of the first connection hole 221, so as to solidify in the first connection hole 221 and the first connection grooves 222 to form an integrally formed first connection body 331 and two second connection bodies 332, and the two second connection bodies 332 clamp the matching connector 200 and / or the outer frame 110, thereby preventing the carrier from being separated from the outer frame 110 along the thickness direction of the middle frame assembly 11, and further improving the connection strength between the outer frame 110 and the carrier plate 300.

[0132] Further, in some embodiments, the outer frame 110 includes a first mating surface 223, and along the thickness direction of the outer frame 110, the first mating surface 223 is adjacent to the first connecting portion 330, and relative to the first connecting portion 330, the first mating surface 223 is arranged close to the outer edge of the outer frame 110. The middle frame assembly 11 also includes an insulating member 400, and at least a portion of the insulating member 400 covers the first mating surface 223 and the first connecting body 331.

[0133] like Figure 6As shown, in some embodiments, the outer frame 110 includes an outer frame surface 111 and an inner side surface 112 arranged opposite to the outer frame surface 111. In the direction from the outer frame surface 111 to the inner side surface 112, at least a portion of the bearing metal member is spaced apart from the first mating surface 223 to form a receiving groove 341. At least a portion of the insulating member 400 is filled in the receiving groove 341 and covers the first mating surface 223 and the first connector 331. In this way, the insulating member 400 is accommodated by the receiving groove 341, which is easy to cover the first mating surface 223 and the first connector 331, so that the insulating member 400 is fixedly connected to the bearing plate 300 and the protective member 100, and the connection strength between the bearing plate 300 and the protective member 100 can be further improved.

[0134] like Figure 6 As shown, in some embodiments, the first mating surface 223 includes two, which are spaced apart at both ends of the first connection hole 221, and the insulating member 400 at least partially covers the two first mating surfaces 223 and the two first connectors 331. In this way, the insulating member 400 can wrap the first mating surface 223 and the first connector 331 along the thickness direction of the middle frame assembly 11, so that the insulating member 400 is embedded and fixed with the carrier plate 300 and the protective member 100, which can further improve the connection strength between the carrier plate 300 and the protective member 100.

[0135] It can be understood that when the connector 200 and the outer frame 110 are integrally formed, the connector 200 serves as a part of the outer frame 110. The first concave portion 220 and / or the first convex portion 210 of the connector 200 can also serve as a part of the outer frame 110.

[0136] Of course, in other embodiments, the outer frame 110 is provided with one of the first convex portion 210 in any of the above embodiments and / or the first concave portion 220 in any of the above embodiments.

[0137] like Figure 5 as well as Figure 7 As shown, in some embodiments, the middle frame assembly 11 further includes an insulating member 400, and the insulating member 400 is fixedly connected to the carrier plate 300 and the protective member 100. In this way, by using the insulating member 400 to be fixedly connected to the carrier plate 300 and the protective member 100, the connection strength between the carrier plate 300 and the protective member 100 can be further improved.

[0138] In addition, the insulating member 400 can also be used to form at least one of an insulating installation area, an insulating connection portion, an insulating installation portion, etc. on the middle frame assembly 11 , which can meet the installation requirements of different types of electronic devices 12 .

[0139] In some embodiments, the material of the protective member 100, the material of the connector 200, and the material of the carrier plate 300 are metal materials. Part of the outer frame 110 and part of the carrier plate 300 are spaced to form an antenna gap 11b, so that part of the outer frame 110 forms a border antenna 11a, or part of the outer frame 110 and one of the other parts of the connector 200 and the carrier plate 300 form a border antenna 11a. In this way, by using the middle frame assembly 11 to form the border antenna 11a, the space of the middle frame assembly 11 can be fully utilized to arrange the antenna, reducing the difficulty of arranging the terminal device 10, making it easier to fully utilize the internal space of the terminal device 10, and making its structure more compact.

[0140] In some embodiments, at least one of the outer frame 110, the connector 200 and the carrier plate 300 is provided with a radiation branch 11c connected to the frame antenna 11a. In this way, the radiation branch 11c can improve the radiation performance of the frame antenna 11a and make full use of the internal space of the middle frame assembly 11.

[0141] Optionally, the outer frame 110 is provided with a radiation branch 11c connected to the frame antenna 11a.

[0142] Optionally, the connecting member 200 is provided with a radiation branch 11c connected to the frame antenna 11a.

[0143] Optionally, the carrier board 300 is provided with a radiation branch 11c connected to the frame antenna 11a.

[0144] Optionally, the outer frame 110 cooperates with the connector 200 to form a radiation branch 11 c connected to the frame antenna 11 a.

[0145] Optionally, the outer frame 110 cooperates with the connector 200 and a portion of the carrier plate 300 to form a radiation branch 11 c connected to the frame antenna 11 a.

[0146] Optionally, in some embodiments, on the orthographic projection plane in the thickness direction of the middle frame assembly 11, at least one of a portion of the outer frame 110, at least a portion of the connector 200, and a portion of the carrier plate 300 protrudes from the antenna gap 11b to form a radiation branch 11c.

[0147] like Figures 10 to 12As shown, in some embodiments, the carrier plate 300 includes a carrier body 310 and a connecting body 320, at least part of the carrier body 310 is spaced apart from the frame antenna 11a to form an antenna gap 11b, and the connecting body 320 cooperates with the outer frame 110 to form the frame antenna 11a. There are at least two connectors 200, which are spaced apart along the circumference of the outer frame 110. Among them, the carrier body 310 is fixedly connected to at least one connector 200, and the connecting body 320 is fixedly connected to one connector 200 to form a radiation branch 11c. In this way, the connecting body 200 can realize the fixed connection between the carrier body 310 and the outer frame 110 by using at least one connector 200, and the carrier body 310 and the outer frame 110 are connected into a whole. At the same time, other connectors 200 are fixedly connected to the connecting body 320, so that the connecting body 320 cooperates with the outer frame 110 to form the frame antenna 11a, which is conducive to increasing the thickness of the frame antenna 11a, reducing impedance, and improving its radiation performance.

[0148] In addition, the connection body 320 and the outer frame 110 are combined to form a border antenna 11a, and the connection body 320 is easy to process and also convenient to adjust the performance requirements of different border antennas 11a, further reducing the manufacturing difficulty of the middle frame assembly 11 and facilitating implementation.

[0149] In combination with the above-mentioned embodiment of the first connecting portion 330, the first connecting portion 330 is disposed on the connecting body 320 (refer to Fig.12 shown).

[0150] like Fig.11 as well as Fig.12 As shown, in some embodiments, the connecting body 320 includes a first body 321 fixedly connected to the connecting member 200 and a second body 322 bent and connected to the first body 321, and the second body 322 is spaced from the carrying body 310 along the thickness direction of the middle frame assembly 11 to form a radiation branch 11c. In this way, it is convenient to avoid the carrying body 310 to increase the clearance space of the frame antenna 11a, which is conducive to further improving the performance of the frame antenna 11a.

[0151] It can be understood that the first body 321 is provided with a first connecting portion 330 .

[0152] As can be seen from the accompanying drawings, a portion of the connecting body 320 is protruded from the carrying plate 300 along the thickness direction (ie, the Z direction) of the middle frame assembly 11 .

[0153] See you later Fig.10As shown, in some embodiments, the connection body 320 includes a feeder 323 connected to the frame antenna 11a, and the feeder 323 is fixedly connected to the outer frame 110 through the connector 200. In addition, the feeder 323 is formed by the connection body 320, and the connection body 320 is easy to process and easy to adjust the feeding requirements of different frame antennas 11a, further reducing the manufacturing difficulty of the middle frame assembly 11 and being easy to implement. The feeder 323 is fixedly connected to the outer frame 110 through the connector 200, which is conducive to increasing the volume of the feeder 323, reducing the feeding resistance, and improving the radiation performance of the frame antenna 11a.

[0154] In addition, it is helpful to reduce the manufacturing difficulty of the protective member 100 and reduce the manufacturing cost.

[0155] Optionally, in some embodiments, the feeder 323 is provided with an internal threaded hole 301. Alternatively, the middle frame assembly 11 further includes a nut, at least part of which is embedded in the feeder 323. This facilitates the use of threaded fasteners such as bolts to fix the transmission component to the feeder 323, thereby achieving feeding of the frame antenna 11a.

[0156] In some embodiments, the frame antenna 11a includes a first antenna 101 provided with a feeder 323, and the first antenna 101 includes at least three radiation branches 11c.

[0157] Optionally, the first antenna 101 is a corner antenna. The feeder 323 is disposed at a corner of the middle frame assembly 11. In this way, the corner space can be fully utilized to increase the volume of the radiator, the feed impedance of the corner antenna can be reduced, and the performance of the corner antenna can be improved.

[0158] In combination with the above-mentioned embodiment of the second connector 332, in some embodiments, the feed body 323 includes at least two second connectors 332, and at least two of the second connectors 332 are partially staggered and partially overlapped; the connector 200 is provided with first connection grooves 222 corresponding to the second connectors 332. In this way, the use of at least two second connectors 332 and the corresponding at least two first connection grooves 222 is conducive to improving the connection strength and contact area between the connector 200 and the feed body, and further reducing the impedance.

[0159] Optionally, in some embodiments, the second connector 332 is columnar.

[0160] Optionally, in some embodiments, at least two of the second connectors 332 are arranged to intersect each other.

[0161] Optionally, in some embodiments, at least two of the first connecting grooves 222 are arranged to intersect with each other.

[0162] Optionally, in some embodiments, at least two of the second connectors 332 have different cross-sectional sizes.

[0163] The above embodiment of "at least two second connectors 332 are partially staggered and partially overlapped" can be referred to in the attached Figure 8 To understand, Figure 8 The first connecting hole 221 is changed into a first connecting groove 222 .

[0164] like Fig.11 As shown, in some embodiments, the connecting body 320 includes a grounding conductor 324 connected to the frame antenna 11a, a portion of the grounding conductor 324 is fixedly connected to the outer frame 110 through the connecting member 200, and another portion of the grounding conductor 324 is grounded to the carrier body 310. In this way, the grounding conductor 324 is used to realize the grounding connection between the frame antenna 11a and the carrier body 310, thereby realizing the grounding of the frame antenna 11a.

[0165] In some embodiments, the ground conductor 324 is provided with at least two first connectors 331 , so as to improve the connection strength between the ground conductor 324 and the connector 200 .

[0166] like Fig.11 As shown, in some embodiments, the frame antenna 11a includes a second antenna 102 provided with a ground conductor 324, and the second antenna 102 includes at least three radiating branches 11c. In this way, antenna designs that meet different frequency bands and performance requirements can be achieved.

[0167] like Figure 10 to Figure 11 As shown, in some embodiments, the middle frame assembly 11 also includes an insulating member 400, which is fixedly connected to the carrier plate 300 and the protective member 100, and part of the insulating member 400 is filled in the antenna gap 11b. In this way, by using the insulating member 400 to be fixedly connected to the carrier plate 300 and the protective member 100, the connection strength between the carrier plate 300 and the protective member 100 can be further improved. Filling at least part of the insulating member 400 in the antenna gap 11b avoids the formation of a cantilever structure and improves the strength of the frame antenna 11a. At the same time, the insulating member 400 is used to increase the connection area between the carrier plate 300 and the protective member 100, thereby improving the strength and stability of the middle frame assembly 11.

[0168] Optionally, in some embodiments, at least a portion of the outer frame 110 and at least a portion of the carrier plate 300 are spaced apart to form a receiving groove 341, and at least a portion of the insulating member 400 is filled in the receiving groove 341. In this way, the receiving groove 341 is used to receive the liquid insulating member 400, and after the insulating member 400 is fixed, it is easy to realize the fixed connection between the insulating member 400, the carrier plate 300 and the protective member 100, thereby improving the connection strength between the carrier plate 300 and the protective member 100.

[0169] like Figure 7 as well as Figure 8As shown, in some embodiments, at least one of the protective member 100, the connecting member 200 and the carrying plate 300 is provided with a second connecting portion 340, and the second connecting portion 340 is embedded with the insulating member 400. In this way, by embedding the second connecting portion 340 with the insulating member 400, the connection area between the two can be increased, so that the protective member 100 and the carrying plate 300 are firmly fixed.

[0170] Optionally, at least one of the protective member and the connecting member is provided with a second connecting portion, and the supporting plate is also provided with a second connecting portion, and both are inlaid and matched with the insulating member. It is easy to improve the connection strength between the protective member and the supporting plate through the insulating member.

[0171] In some embodiments, the second connection portion 340 includes at least one of a second protrusion (not shown) and a second recess. In this way, by using at least one of the second protrusion and the second recess to be embedded with the insulating member 400, the connection area can be increased, so that the protective member 100 and the carrier plate 300 are firmly fixed.

[0172] In addition, the second convex portion and the second concave portion can be easily integrated with the insulating member 400 by using a process such as injection molding.

[0173] It should be noted that there may be many specific implementations of the second convex portion, including but not limited to structures such as protrusions, convex ridges, convex hooks, and anti-slip convex strips.

[0174] In addition, at least one of the supporting plate 300, the connecting member 200 and the outer frame 110 includes a plurality of second protrusions. Or at least one of the supporting plate 300, the connecting member 200 and the outer frame 110 includes a plurality of second recesses (see Figure 8 or at least one of the carrier plate 300, the connector 200 and the outer frame 110 includes at least one second protrusion and at least one second recess.

[0175] It should be noted that there may be many specific implementations of the second recess, including but not limited to structures such as a groove, a notch, a cavity, and a concave hole.

[0176] like Figure 7 as well as Figure 8 As shown, in some embodiments, the second recess includes one of a second connection hole 343 or a second connection groove 342. In this way, it is convenient to flow the liquid in the die-casting or injection molding process of the carrier plate 300 into at least one of the second connection hole 343 and the second connection groove 342, so that the liquid is fixed, and the insulating member 400 is embedded and fixed with at least one of the carrier plate 300, the connecting member 200 and the outer frame 110, so that the assembly efficiency is high, and the production cost of the middle frame assembly 11 is further reduced.

[0177] See you later Figure 7As shown, in some embodiments, the insulating member 400 is provided with an embedding body 410 that is embedded with the second recess. In this way, the embedding body 410 can be inserted into the second recess to achieve embedding and fixing of the insulating member 400 with at least one of the carrier plate 300, the connector 200 and the outer frame 110.

[0178] like Figure 7 As shown, in some embodiments, the second connection parts 340 include at least two and are spaced apart along the inner side of the outer frame 110. In this way, it is convenient to use at least two second connection parts 340 to form multiple connection positions between the insulating member 400, the outer frame 110 and the carrier plate 300, thereby improving the connection strength of the three.

[0179] like Figure 7 As shown, in some embodiments, at least one second connection portion 340 is provided with a plurality of second connection grooves 342. Thus, the plurality of first connection holes 221 can increase the connection area between the insulating member 400 and the carrier plate 300 and / or the protective member 100, further increasing the connection strength between the two.

[0180] See you later Figure 7 As shown, in one example, after the protective member 100 and the carrier plate 300 are die-cast, a plurality of second connection grooves 342 of the carrier plate 300 and / or the protective member 100 are roughened to increase the bonding force between the insulating member 400 and the two and increase the bonding area.

[0181] Optionally, the plurality of first connection holes 221 form array microholes on the carrier plate 300 and / or the protective member 100 .

[0182] like Fig.13 As shown, in some embodiments, the outer frame 110 includes a first end 103 having a radiation branch 11c, and the first end 103 is spaced apart from other parts of the outer frame 110 to form a break 11d, and the break 11d is connected to the antenna gap 11b. Among them, at least a portion of the insulating member 400 is filled in the break 11d. In this way, at least a portion of the insulating member 400 is filled in the break 11d to avoid forming a concave structure, and the appearance texture of the middle frame assembly 11 is improved.

[0183] like Fig.13 As shown, in some embodiments, the first end portion 103 includes at least one of a third protrusion and a third recess 103a. Thus, by using at least one of the third protrusion and the third recess 103a to be embedded with the insulating member 400, the connection area can be increased, so that the protective member 100 and the insulating member 400 are firmly fixed.

[0184] In addition, the third protrusion and the third recess 103 a can be easily integrated with the insulating member 400 by using a process such as injection molding.

[0185] It should be noted that there may be many specific implementations of the third convex portion, including but not limited to structures such as protrusions, convex ridges, convex hooks, and anti-slip convex strips.

[0186] It should be noted that there may be many specific implementations of the third recess 103a, including but not limited to structures such as a groove, a notch, a cavity, and a concave hole.

[0187] Optionally, in some embodiments, the third recess 103a includes at least one of a third connecting hole and a third connecting groove.

[0188] Optionally, in some embodiments, the connecting member 200 is fixedly connected to the connecting body 320 and the outer frame 110 , and cooperates with a portion of the insulating member 400 to form a frame.

[0189] like Fig.13 As shown, in some embodiments, on the orthographic projection plane in the thickness direction of the middle frame assembly 11, the first end portion 103 is inclined, so as to make full use of the antenna gap 11b space to extend the length of the long radiation branch 11c, so as to meet the design of the border antenna 11a with different frequency bands or performance requirements, and reduce the difficulty of arranging the border antenna 11a.

[0190] Specifically, in some embodiments, on the orthographic projection plane in the thickness direction of the middle frame assembly 11 , along the direction away from the frame antenna 11 a , at least a portion of the first end portion 103 is inclined toward the direction close to the carrier board 300 .

[0191] like Fig.13 As shown, in one embodiment, the first end portion 103 includes a first body 103b spaced apart from other parts of the outer frame 110 to form a gap 11d and a second body 103c bent and connected to the first body 103b. On the orthographic projection plane in the thickness direction of the middle frame assembly 11, along the width direction of the antenna gap 11b, the second body 103c is inclined toward the direction close to the carrier plate 300.

[0192] like Fig.13 As shown, in some embodiments, the second body 103c includes a first side wall 1031 for forming a fracture 11d. On the orthographic projection plane in the thickness direction of the middle frame assembly 11, at least part of the first side wall 1031 is arc-shaped and bends in a direction away from the frame antenna 11a. In this way, the arc-shaped first side wall 1031 can increase the sealing area and avoid overflow of glue during secondary injection molding.

[0193] The terminal device 10 may include a handheld device, an in-vehicle device, a cellular phone, a smart phone, a personal digital assistant (PDA) computer, a tablet computer, a laptop computer, a car computer, a wearable device, etc.

[0194] Reference Fig.14 As shown, in some embodiments, the electronic device 12 may also include one or more of the following components: a processing component 12a, a memory 12b, a power component 12c, a multimedia component 12d, an audio component 12e, an input / output interface 12f, a sensor component 12g, and a communication component 12h.

[0195] The processing component generally controls the overall operation of the terminal device, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component may include one or more processors to execute instructions to complete all or part of the steps of the above method. In addition, the processing component may include one or more modules to facilitate interaction between the processing component and other components. For example, the processing component may include a multimedia module to facilitate interaction between the multimedia component and the processing component.

[0196] The memory is configured to store various types of data to support operations on the terminal device. Examples of such data include instructions for any application or method configured to operate on the terminal device, contact data, phone book data, messages, pictures, videos, etc. The memory can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0197] The power supply component provides power to various components of the terminal device. The power supply component may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the terminal device.

[0198] The multimedia component includes the display module of the present disclosure, which is convenient for human-computer interaction. If the display module includes a touch panel, the display module can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor can not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component includes a front camera and / or a rear camera. When the terminal device is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0199] The audio component is configured to output and / or input audio signals. For example, the audio component includes a microphone (MIC), and when the terminal device is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in a memory or sent via a communication component. In some embodiments, the audio component also includes a speaker configured to output an audio signal.

[0200] The input / output interface provides an interface between the processing component and the peripheral interface module, which may be a keyboard, a click wheel, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0201] The sensor assembly includes one or more sensors configured to provide various aspects of status assessment for the terminal device. For example, the sensor assembly can detect the open / closed state of the terminal device, the relative positioning of components, such as the display and keypad of the terminal device, and the sensor assembly can also detect the position change of the terminal device or a component of the terminal device, the presence or absence of user contact with the terminal device, the orientation or acceleration / deceleration of the terminal device, and the temperature change of the terminal device. The sensor assembly may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly may also include a photosensitive element, such as a CMOS or CCD image sensor, configured to be used in imaging applications. In some embodiments, the sensor assembly may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0202] The communication component is configured to facilitate wired or wireless communication between the terminal device and other devices. The terminal device can access a wireless network based on a communication standard, such as WiFi, 2G, 3G, 4G or 6G, etc., or a combination thereof. In an exemplary embodiment, the communication component receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0203] In some embodiments of the present disclosure, a method for manufacturing a middle frame assembly is further provided, which is applied to the middle frame assembly in any of the above embodiments. The manufacturing method includes:

[0204] Protective parts and connecting parts are manufactured.

[0205] The protective member and the connecting member are placed in the die cavity of the die casting mold, and the molten metal is injected into the die cavity of the die casting mold. After the molten metal solidifies, a carrier plate is obtained, and a part of the carrier plate is inlaid with the connecting member to form a middle frame assembly.

[0206] The die-casting process is used to easily realize the inlaying and matching of the bearing plate and the connecting piece, so that the bearing plate and the outer frame of the protective piece are connected into a whole. It is convenient to use the outer frame with stronger strength as a protective frame. The structural features required by the bearing device are set by using the bearing plate with lower strength, which is easy to manufacture. In this way, the manufacturing method of the middle frame assembly is conducive to reducing the manufacturing difficulty of the middle frame assembly and improving production efficiency while ensuring the protective performance of the middle frame assembly.

[0207] In some embodiments, the manufacturing method further includes: placing the middle frame assembly in a mold cavity of an injection mold, and injecting an insulating liquid into the mold cavity of the injection mold. After the insulating liquid solidifies, an insulating member is obtained, and a portion of the carrier plate and a portion of the protective member are inlaid and matched with the insulating member. In this way, the insulating member is fixedly connected to the carrier plate and the protective member, and the connection strength between the carrier plate and the protective member can be further improved.

[0208] In addition, the insulating member can also be used to form at least one of an insulating installation area, an insulating connection portion, an insulating installation portion, etc. on the middle frame assembly, which can meet the installation requirements of different types of electronic devices.

[0209] In some embodiments, before placing the metal component in the mold cavity of the injection mold, the manufacturing method further includes: performing material removal processing on the middle frame component to form at least one of an antenna gap, an antenna gap, and a second connecting portion on the middle frame component. In this way, by using the middle frame component to form a frame antenna, the space of the middle frame component can be fully utilized to arrange the antenna, reducing the difficulty of arranging the terminal device, facilitating full utilization of the internal space of the terminal device, and making its structure more compact.

[0210] The provision of the second connection portion facilitates embedding and fixing with the insulating member, and can improve the connection strength between the bearing plate and the protective member.

[0211] In some embodiments, the process of manufacturing the protective element includes:

[0212] The titanium alloy profile is forged into the outer frame metal.

[0213] The outer frame metal is de-materialized to form a protective part.

[0214] In this way, forming the protective member by a forging process is beneficial to improving the manufacturing accuracy and production efficiency of the protective member.

[0215] In some embodiments, the chip removal process of the outer frame metal includes forming a connector having a first connection hole and / or a first connection groove in the outer shell metal. In this way, the outer frame and the connector are integrally formed on the protective member, reducing assembly errors and the two are compactly connected.

[0216] In addition, the first connection hole and / or the first connection groove facilitates embedding and fixing with the carrier plate, which can improve the connection strength between the carrier plate and the protective member.

[0217] In the description of the present disclosure, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0218] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0219] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0220] In the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0221] It should be noted that when an element is referred to as being "fixed to", "disposed on", "fixed on" or "installed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. Furthermore, when an element is considered to be "fixedly connected to" another element, the two may be fixed in a detachable connection or in a non-detachable connection, as long as power transmission can be achieved, such as socketing, snap-fitting, one-piece molding fixation, welding, etc., which can be achieved in traditional technologies and will not be repeated here.

[0222] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0223] The above embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the inventive concept of the present disclosure, and these all belong to the protection scope of the present disclosure.

Claims

1. A middle frame assembly, characterized in that: include: A protective member, including an outer frame; A connecting piece, fixedly mounted on the inner wall of the outer frame; as well as A carrying plate, at least a portion of which is disposed on the inner side of the outer frame, and the carrying plate is fixedly connected to the outer frame via the connecting member; Wherein, the strength of the protective member is greater than the strength of the supporting plate.

2. The middle frame assembly according to claim 1, characterized in that: The material of the protective member and the material of the carrying plate are metal materials, and the density of the carrying plate is lower than the density of the protective member.

3. The middle frame assembly according to claim 2, characterized in that: The protective member is at least one of titanium metal, titanium alloy, and stainless steel alloy, and the bearing plate is at least one of aluminum metal, magnesium metal, aluminum alloy, or magnesium alloy; And / or, the material of the protective member is metal, and the connecting member is fixed by welding and / or integrally formed with the outer frame; And / or, the protective member is die-casted with the bearing plate through the connecting member; And / or, the connecting members include at least two, and at least two of the connecting members are spaced apart along the circumference of the outer frame.

4. The middle frame assembly according to any one of claims 1 to 3, characterized in that: At least one of the connecting member and / or the outer frame includes at least one of a first protrusion and a first recess, and is inlaid and matched with the supporting plate.

5. The middle frame assembly according to claim 4, characterized in that: The first recess includes at least one of a first connection hole and a first connection groove; And / or, the carrying plate includes a first connecting portion embedded in the first recess.

6. The middle frame assembly according to claim 5, characterized in that: The connecting members include at least two and are spaced apart along the inner side of the outer frame; And / or, at least one of the connecting members is provided with a plurality of first connecting holes.

7. The middle frame assembly according to claim 5, characterized in that: The first recess includes a first connecting hole, and the first connecting portion includes a first connecting body that is embedded and matched with the first connecting hole; And / or, the first recess includes a first connecting groove, and the first connecting portion includes a second connecting body embedded in the first connecting groove.

8. The middle frame assembly according to claim 5, characterized in that: The outer frame body includes an outer frame surface relatively spaced from the first connecting body and an inner side surface arranged opposite to the outer frame surface, and the first connecting groove is provided with a notch along the direction from the outer frame surface to the inner side surface; and the first connecting groove and the first connecting part are anti-disengagement matched in the direction from the outer frame surface to the inner side surface.

9. The middle frame assembly according to claim 5, characterized in that: The first recess includes a first connecting groove and a first connecting hole arranged at the bottom of the first connecting groove, and the first connecting portion includes a first connecting body embedded in the first connecting hole and a second connecting body embedded in the first connecting groove.

10. The middle frame assembly according to claim 9, characterized in that: The first connection hole is a through hole, and a depth direction of the first connection hole is arranged along a thickness direction of the outer frame.

11. The middle frame assembly according to claim 10, characterized in that: The first connection grooves include two and are spaced apart at two ends of the first connection hole; the second connection bodies correspond to the first connection grooves one by one and are spaced apart and fixedly disposed at two ends of the first connection body.

12. The middle frame assembly according to claim 5, characterized in that: The outer frame body includes a first mating surface, which is adjacent to the first connecting portion along the thickness direction of the outer frame body, and is arranged close to the outer edge of the outer frame body relative to the first connecting portion; the middle frame assembly also includes an insulating member, which at least partially covers the first mating surface and the first connecting body.

13. The middle frame assembly according to claim 12, characterized in that: The outer frame body comprises an outer frame surface and an inner side surface arranged opposite to the outer frame surface, and along the direction from the outer frame surface to the inner side surface, at least a portion of the bearing metal member is spaced apart from the first mating surface to form a receiving groove, and at least a portion of the insulating member is filled in the receiving groove and covers the first mating surface and the first connector; And / or, the first mating surfaces include two, which are spaced apart at two ends of the first connecting hole, and the insulating member at least partially covers the two first mating surfaces and the two first connectors.

14. The middle frame assembly according to claim 1, characterized in that: The middle frame assembly further includes an insulating member, and the insulating member is fixedly connected to the bearing plate and the protective member.

15. The middle frame assembly according to any one of claims 1 to 14, characterized in that: The protective member, the connecting member and the supporting plate are made of metal; a portion of the outer frame and a portion of the supporting plate are spaced apart to form an antenna gap, so that the portion of the outer frame forms a border antenna, or a portion of the outer frame and one of the other portions of the connecting member and the supporting plate form a border antenna.

16. The middle frame assembly according to claim 15, characterized in that: At least one of the outer frame, the connector and the carrier plate is provided with a radiation branch connected to the frame antenna.

17. The middle frame assembly according to claim 16, characterized in that: On the orthographic projection surface in the thickness direction of the middle frame assembly, at least one of a portion of the outer frame body, at least a portion of the connector, and a portion of the carrier plate is protruded from the antenna gap to form the radiation branch.

18. The middle frame assembly according to claim 16, characterized in that: The carrier plate includes a carrier body and a connecting body, at least a portion of the carrier body is spaced apart from the frame antenna to form the antenna gap, and the connecting body cooperates with the outer frame to form the frame antenna; there are at least two connecting members, which are spaced apart along the circumference of the outer frame; Wherein, the bearing body is fixedly connected to at least one of the connecting members, and the connecting body is fixedly connected to one of the connecting members to form the radiation branches.

19. The middle frame assembly according to claim 18, characterized in that: The connecting body includes a first body fixedly connected to the connecting member and a second body bently connected to the first body, and the second body is spaced apart from the bearing body along the thickness direction of the middle frame assembly to form the radiation branch.

20. The middle frame assembly according to claim 18, characterized in that: The connecting body comprises a feeder connected to the frame antenna feeder, and the feeder is fixedly connected to the outer frame through the connecting piece.

21. The middle frame assembly according to claim 20, characterized in that: The feeder is provided with an internal threaded hole; or the middle frame assembly further includes a nut, at least a portion of which is embedded in the feeder; And / or, the frame antenna includes a first antenna provided with the feeder, and the first antenna includes at least three radiation branches.

22. The middle frame assembly according to claim 18, characterized in that: The connecting body comprises a grounding conductor connected to the ground of the frame antenna, a part of the grounding conductor is fixedly connected to the outer frame through the connecting piece, and another part of the grounding conductor is grounded to the supporting body.

23. The middle frame assembly according to claim 22, characterized in that: The frame antenna includes a second antenna provided with the ground conductor, and the second antenna includes at least three radiation branches.

24. The middle frame assembly according to claim 15, characterized in that: The middle frame assembly also includes an insulating member fixedly connected to the bearing plate and the protective member, and a portion of the insulating member is filled in the antenna gap.

25. The middle frame assembly according to claim 24, characterized in that: At least a portion of the outer frame is spaced apart from at least a portion of the carrying plate to form a receiving groove, and at least a portion of the insulating member is filled in the receiving groove; And / or, at least one of the protective member, the connecting member and the supporting plate is provided with a second connecting portion, and the second connecting portion is embedded and matched with the insulating member.

26. The middle frame assembly according to claim 25, characterized in that: The second connection portion includes at least one of a second convex portion and a second concave portion.

27. The middle frame assembly according to claim 26, characterized in that: The second recess includes one of a second connection hole or a second connection groove; And / or, the insulating member is provided with an embedded body embedded and matched with the second recess.

28. The middle frame assembly according to claim 27, characterized in that: The second connecting parts include at least two and are spaced apart along the inner side of the outer frame; And / or, at least one of the second connecting parts is provided with a plurality of second connecting holes.

29. The middle frame assembly according to claim 24, characterized in that: The outer frame includes a first end portion provided with the radiation branch, the first end portion is spaced apart from other portions of the outer frame to form a gap, and the gap is connected to the antenna gap; Wherein, at least a portion of the insulating member is filled in the fracture.

30. The middle frame assembly according to claim 29, characterized in that: The first end portion includes at least one of a third protrusion and a third recess; And / or, the connecting member is fixedly connected to a portion of the supporting plate and the outer frame, and cooperates with a portion of the insulating member to form a frame.

31. The middle frame assembly according to claim 30, characterized in that: The third recess includes at least one of a third connecting hole and a third connecting groove.

32. The middle frame assembly according to claim 29, characterized in that: On the orthographic projection plane in the thickness direction of the middle frame assembly, a portion of the first end portion is inclined.

33. The middle frame assembly according to claim 29, characterized in that: On the orthographic projection surface in the thickness direction of the middle frame assembly, along the direction away from the frame antenna, at least a portion of the first end portion is inclined toward the direction close to the carrying plate; Alternatively, the first end portion includes a first body spaced apart from other portions of the outer frame to form a break and a second body bent and connected to the first body; on the orthographic projection plane in the thickness direction of the middle frame assembly, along the width direction of the antenna gap, the second body is inclined toward the direction close to the supporting plate.

34. The middle frame assembly according to claim 33, characterized in that: The second body includes a first side wall for forming the fracture; on the orthographic projection plane in the thickness direction of the middle frame assembly, at least a portion of the first side wall is arc-shaped and bends in a direction away from the frame antenna.

35. A method for manufacturing a middle frame assembly, characterized in that: Applied to the middle frame assembly of any one of claims 1 to 34, the manufacturing method comprises: Protective parts and connecting parts are manufactured; The protective member and the connecting member are placed in the die cavity of the die casting mold, and molten metal is injected into the die cavity of the die casting mold; after the molten metal solidifies, a carrier plate is obtained, and a part of the carrier plate is inlaid and matched with the connecting member to form a middle frame assembly.

36. The method for manufacturing the middle frame assembly according to claim 35, characterized in that: The manufacturing method further comprises: The middle frame assembly is placed in the cavity of the injection mold, and an insulating liquid is injected into the cavity of the injection mold; after the insulating liquid is solidified, an insulating part is obtained, and part of the bearing plate and part of the protective part are inlaid and matched with the insulating part.

37. The method for manufacturing the middle frame assembly according to claim 36, characterized in that: Before placing the metal component in the mold cavity of the injection mold, the manufacturing method further includes: performing material removal processing on the middle frame component to form at least one of an antenna gap, an antenna break, and a second connecting portion on the middle frame component.

38. The method for manufacturing a middle frame assembly according to any one of claims 35 to 37, characterized in that: The process of manufacturing the protective element includes: Forging titanium alloy profiles into outer frame metal; The outer frame metal is subjected to material removal processing to form the protective part.

39. The method for manufacturing the middle frame assembly according to claim 38, characterized in that: The chip removal process of the outer frame metal includes forming a connecting piece having a first connecting hole and / or a first connecting groove in the outer shell metal.

40. A terminal device, characterized in that: It comprises an electronic device and the middle frame assembly according to any one of claims 1 to 39, wherein the electronic device is arranged in the middle frame assembly.

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