CN119905801A

CN119905801A - Middle frame components and terminal equipment

Info

Publication number: CN119905801A
Application number: CN202311405657.1A
Authority: CN
Inventors: 周顺
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2023-10-26
Filing date: 2023-10-26
Publication date: 2025-04-29

Abstract

The invention discloses a middle frame assembly and terminal equipment. The middle frame assembly comprises a metal protection piece, a metal connecting piece and a metal bearing plate. The metal guard includes an outer frame. The metal connecting piece is fixedly arranged on the outer frame body. At least part of the metal bearing plate is arranged on the inner side of the outer frame body, and the metal bearing plate is fixedly connected with the outer frame body through a metal connecting piece. The middle frame assembly is provided with a frame antenna, and at least part of the frame antenna and part of the metal bearing plate are arranged at intervals to form an antenna gap. At least one of the outer frame body, the metal connecting piece and the metal bearing plate is provided with a radiation branch connected with the frame antenna. The middle frame component can form an antenna with good communication performance, and is beneficial to improving the communication performance of terminal equipment.

Description

Middle frame assembly and terminal equipment

Technical Field

The disclosure relates to the field of electronic technology, and in particular, to a middle frame assembly and a terminal device.

Background

Terminal devices such as mobile phones and tablet computers have become indispensable technological products in the life, study and entertainment processes of people. At present, most terminal devices can utilize a middle frame assembly to bear related electronic devices, and the middle frame is used as an outer frame, so that better holding experience and protection performance can be brought, and further, the terminal devices are more and more favored by consumers.

In the related art, antennas are arranged by using a middle frame assembly to form a frame antenna. However, the traditional frame antenna is affected by the frame structure, so that the radiation performance of the traditional frame antenna is difficult to improve, and the communication performance of the terminal equipment is not improved.

Disclosure of Invention

The disclosure provides a middle frame assembly and terminal equipment. The middle frame component can form an antenna with good communication performance, and is beneficial to improving the communication performance of terminal equipment.

The technical scheme is as follows:

According to a first aspect of embodiments of the present disclosure, a center assembly is provided that includes a metal guard, a metal connector, and a metal carrier plate. The metal guard includes an outer frame. The metal connecting piece is fixedly arranged on the outer frame body. At least part of the metal bearing plate is arranged on the inner side of the outer frame body, and the metal bearing plate is fixedly connected with the outer frame body through a metal connecting piece. The middle frame assembly is provided with a frame antenna, and at least part of the frame antenna and part of the metal bearing plate are arranged at intervals to form an antenna gap. At least one of the outer frame body, the metal connecting piece and the metal bearing plate is provided with a radiation branch connected with the frame antenna.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

Therefore, the frame antenna is formed by utilizing the middle frame component, the space of the middle frame component can be fully utilized to arrange the antenna, the arrangement difficulty of the terminal equipment is reduced, the internal space of the terminal equipment is conveniently and fully utilized, and the structure of the terminal equipment is more compact. And the radiation branches connected with the frame antenna are formed, so that the radiation performance of the frame antenna is improved by utilizing the radiation branches, and the communication performance of the terminal equipment can be improved.

The technical scheme of the present disclosure is further described below:

in one embodiment, the metal connectors comprise at least two metal connectors, at least two metal connectors are arranged at intervals along the peripheral side of the outer frame body, and the metal connectors and the outer frame body are welded and fixed and/or integrally formed.

And/or, at least part of the outer frame body forms a frame antenna. Or the part of the outer frame body is connected with one of the part of the metal connecting piece and the part of the metal bearing plate to form the frame antenna.

And/or at least one of the part of the outer frame body, at least one of the part of the metal connecting piece and at least one of the part of the metal bearing plate is arranged in the antenna gap in a protruding mode on the orthographic projection surface of the middle frame assembly so as to form a radiation branch.

In one embodiment, at least one of the metal connector and/or the outer frame includes at least one of a first protrusion and a first recess, and is in a snap fit with the metal carrier.

In one embodiment, a portion of the metal carrier board is in a snap fit with the first recess.

And/or the first recess includes at least one of a first connection hole and a first connection groove.

In one embodiment, the metal connectors include at least two metal connectors and are spaced along the inner side of the outer frame.

And/or at least one metal connecting piece is provided with a plurality of first connecting holes.

In one embodiment, the metal carrier board includes a carrier body and a connection body. At least part of the bearing body and the frame antenna are arranged at intervals to form an antenna gap. The bearing body is fixedly connected with at least one of the connecting body and the metal connecting piece. The part of the connecting body is fixedly connected with the outer frame body through a metal connecting piece to form a frame antenna.

In one embodiment, at least one of the connection body and the carrier body is in a damascene fit with the metal connector.

And/or the metal connecting piece and the outer frame body are integrally formed, and the metal connecting piece is fixedly connected with the connecting body and the outer frame body to form at least part of the frame.

The number of the metal connecting pieces is at least two, and the metal connecting pieces are arranged at intervals along the circumferential direction of the outer frame body. The bearing body is fixedly connected with at least one metal connecting piece, and the connecting body is fixedly connected with one metal connecting piece to form a radiation branch.

In one embodiment, the metal connector is integrally formed with the outer frame.

And/or the metal connecting piece comprises a first concave part, and at least one of the connecting body and the bearing body comprises a first connecting part which is in embedded fit with the first concave part.

In one embodiment, the first recess includes a first connection hole and the first connection portion includes a first connection body that is an insert fit with the first connection hole.

And/or the first concave part comprises a first connecting groove, and the first connecting part comprises a second connecting body which is in embedded fit with the first connecting groove.

In one embodiment, the outer frame body includes an outer frame surface opposite to the first connecting body at intervals and an inner side surface opposite to the outer frame surface, 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 portion are in anti-falling fit along the direction from the outer frame surface to the inner side surface.

In one embodiment, the first recess includes a first connecting groove and a first connecting hole disposed at a bottom of the first connecting groove, and the first connecting portion includes a first connecting body that is fitted with the first connecting hole and a second connecting body that is fitted with the first connecting groove.

In one embodiment, the first connecting hole is a through hole, and a depth direction of the first connecting hole is set along a thickness direction of the outer frame body.

In one embodiment, the first connecting grooves comprise two connecting holes and are arranged at two ends of the first connecting hole at intervals, and the second connecting bodies are in one-to-one correspondence with the first connecting grooves and are fixedly arranged at two ends of the first connecting bodies at intervals.

In one embodiment, the connection body comprises a power supply body connected with the power supply of the frame antenna, and the power supply body is fixedly connected with the outer frame body through a metal connecting piece.

In one of the embodiments, the power supply is provided with an internally threaded bore. Or the middle frame component further comprises a nut, and at least part of the nut is embedded into the feed body;

and/or the frame antenna comprises a first antenna provided with a feed body, and the first antenna comprises at least three radiation branches.

In one embodiment, the power supply body comprises at least two second connectors, parts of the at least two second connectors are staggered and partially overlapped, and the metal connectors are provided with first connecting grooves corresponding to the second connectors one by one.

In one embodiment, the second connector is cylindrical.

And/or at least two second connectors are arranged in an intersecting manner.

And/or at least two first connecting grooves are arranged in an intersecting manner.

And/or at least two of the second connectors have different cross-sectional sizes.

In one embodiment, the connecting body comprises a grounding conductor connected with the frame antenna in a grounding way, a part of the grounding conductor is fixedly connected with the outer frame body through a metal connecting piece, and the other part of the grounding conductor is connected with the bearing body in a grounding way.

In one of the embodiments, the ground conductor is provided with at least two first connection holes.

And/or the frame antenna comprises a second antenna provided with a grounding conductor, and the second antenna comprises at least three radiation branches.

In one embodiment, the middle frame assembly further comprises an insulating piece fixedly connected with the metal bearing plate and the metal protection piece, and part of the insulating piece is filled in the antenna slot.

In one embodiment, at least one of the metal guard, the metal connector and the metal carrier plate is provided with a second connecting portion, and the second connecting portion is in embedded fit with the insulator.

In one embodiment, the second connection portion includes at least one of a second convex portion and a second concave portion.

And/or the frame antenna is provided with a second connecting part.

And/or at least one of the metal protection part and the metal connecting part is provided with a second connecting part, and the metal bearing plate is also provided with a second connecting part which is in embedded fit with the insulating part.

In one embodiment, the second recess includes one of a second connection hole or a second connection groove.

And/or the insulator is provided with an insert body which is in inlay fit with the second recess.

In one embodiment, the second connecting parts include at least two connecting parts and are arranged at intervals along the inner side of the outer frame body.

And/or at least one second connecting part is provided with a plurality of second connecting grooves.

In one embodiment, the frame antenna includes a first end portion provided with a radiation branch, and the first end portion and other portions of the outer frame body are arranged at intervals to form a break seam, and the break seam is communicated with the antenna seam. Wherein at least part of the insulating member fills the break.

In one embodiment, the first end includes at least one of a third protrusion and a third recess.

And/or the metal connecting piece is fixedly connected with the part of the metal bearing plate and the outer frame body and is matched with the part of the insulating piece to form a frame.

In one embodiment, the third recess includes one of a third connection hole or a third connection groove.

In one embodiment, the portion of the first end portion is inclined on the orthographic projection plane of the middle frame assembly in the thickness direction.

In one embodiment, at least part of the first end part is inclined towards the direction approaching to the metal bearing plate along the direction away from the frame antenna on the orthographic projection surface of the thickness direction of the middle frame assembly;

Or the first end part comprises a first body and a second body, wherein the first body and the other parts of the outer frame body are arranged at intervals to form a fracture, the second body is connected with the first body in a bending way, and the second body is inclined towards the direction close to the metal bearing plate along the width direction of the antenna gap on the orthographic projection surface of the thickness direction of the middle frame assembly.

In one embodiment, the second body comprises a first side wall for forming a fracture, and at least part of the first side wall is arc-shaped and turns away from the radiator on the orthographic projection surface of the middle frame component in the thickness direction.

In one embodiment, the strength of the metal guard is greater than the strength of the metal carrier board.

In one embodiment, the metal guard is at least one of titanium metal, titanium alloy, stainless steel alloy, and the metal carrier plate is at least one of aluminum metal, magnesium metal, aluminum alloy, or magnesium alloy.

And/or the metal guard piece and the metal connecting piece are integrally formed, and the metal guard piece is die-cast and formed with the metal bearing plate through the metal connecting piece.

According to a second aspect of the embodiments of the present disclosure, there is further provided a terminal device, including an electronic device and the middle frame assembly in any of the above embodiments, where the electronic device is disposed on the middle frame assembly and is electrically connected to the frame antenna.

the terminal equipment utilizes the middle frame assembly in any embodiment to form the antenna with good communication performance, so that the communication performance of the terminal equipment can be improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate and explain the exemplary embodiments of the disclosure and their description are given by way of illustration and not of limitation.

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic structural diagram of a terminal device in an embodiment.

FIG. 2 is a schematic diagram of a portion of a middle frame assembly according to one embodiment.

Fig. 3 is an exploded view of the center assembly of fig. 2.

FIG. 4 is an exploded view of the center assembly of FIG. 3 from another perspective.

Fig. 5 is a schematic partial structure of a middle frame assembly according to another embodiment.

FIG. 6 is a schematic view of the middle frame assembly of FIG. 5 in a cross-sectional view.

Fig. 7 is an exploded view of the center assembly of fig. 5.

Fig. 8 is a partial structural schematic view of a metal guard shown in an embodiment.

Fig. 9 is a schematic view of a first recess shown in an embodiment.

Fig. 10 is a schematic structural diagram of a first antenna according to an embodiment.

Fig. 11 is a schematic structural diagram of a second antenna in an embodiment.

Fig. 12 is a schematic view of a partial explosion of the connection body and the carrier body shown in fig. 11.

Fig. 13 is an enlarged partial schematic view of a first end of the bezel antenna shown in fig. 11.

Fig. 14 is a schematic diagram of a hardware structure of a terminal device in an embodiment.

Reference numerals illustrate:

10. A terminal device; 11, a middle frame assembly; 11a, a frame antenna; 101, first antenna, 102, second antenna, 103, first end, 103a, third recess, 103b, first body, 103c, second body, 1031, first sidewall, 11b, antenna slot, 11c, radiating stub, 11d, break, 100, metal guard, 110, outer frame, 111, outer frame, 112, inner side, 200, metal connector, 210, first protrusion, 220, first recess, 221, first connection hole, 222, first connection slot, 201, notch, 223, first mating surface, 300, metal carrier plate, 310, carrier body, 320, connector body, 321, first body, 322, second body, 323, feeder body, 301, internally threaded hole, 324, ground conductor, 330, first connection, 331, first connection body, 332, second connection body, 340, second connection, 341, receiving slot, 342, second connection slot, second connection hole, 400, insulator, 410, electronic insert, 12a, 12b, memory, 12f, input assembly, 12f, communication assembly, 12f, input assembly, 12, input assembly, second antenna, third recess, 222, first end, first.

Detailed Description

For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the drawings and specific language will be used to describe the same. It should be understood that the detailed description is presented herein only to illustrate the present disclosure and not to limit the scope of the disclosure.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

Terminal devices such as mobile phones, tablet computers, wearable devices and the like have become indispensable scientific and technological products in the life, study and entertainment processes of people. Along with the development of diversification of terminal equipment functions, the variety of terminal equipment is various, brands are various, so that consumers can select the terminal equipment, and how to obtain the consumer's favor becomes a problem that terminal equipment manufacturers attach more and more importance.

As shown in fig. 1, in some embodiments of the present disclosure, a terminal device 10 is provided that includes a center assembly 11 and an electronic component 12, the electronic component 12 being disposed on the center assembly 11.

As shown in fig. 2 to 4, the middle frame assembly 11 includes a metal guard 100, a metal connector 200, and a metal carrier 300. The metal guard 100 includes an outer frame 110. The metal connector 200 is fixedly arranged on the outer frame 110. At least a portion of the metal carrier 300 is disposed inside the outer frame 110, and the metal carrier 300 is fixedly connected to the outer frame 110 through the metal connecting member 200. The middle frame assembly 11 is provided with a frame antenna 11a, and at least part of the frame antenna 11a is spaced from part of the metal carrier 300 to form an antenna slot 11b. At least one of the outer frame 110, the metal connector 200 and the metal carrier 300 is provided with a radiation branch 11c connected to the rim antenna 11 a. In this way, the middle frame component 11 is utilized to form the frame antenna 11c, the space of the middle frame component 11 can be fully utilized to arrange the antennas, the arrangement difficulty of the terminal equipment 10 is reduced, the internal space of the terminal equipment is conveniently and fully utilized, and the structure is more compact. The radiation performance of the frame antenna is further improved by forming the radiation branch 11c connected with the frame antenna and utilizing the radiation branch 11c, so that the communication performance of the terminal device 10 can be improved.

In addition, the radiation branch 11c may be disposed on at least one of the outer frame 110, the metal connector 200 and the metal carrier 300, so that the design of the frame antenna 11a is flexible, and the debugging is convenient, so as to obtain an antenna with better radiation performance.

In some embodiments, the strength of the metal guard 100 is greater than the strength of the metal carrier board 300. In this way, the metal connecting piece 200 is used to connect the metal bearing plates 300 with different strengths with the outer frame 110, so that the outer frame 110 with stronger strength is conveniently used as a protective frame. The structural features required for the carrier are provided by the lower strength metal carrier plate 300, which is easy to manufacture. Thus, the middle frame assembly 11 has good protective performance, and can reduce the manufacturing difficulty and the production cost.

The terminal device 10 uses the middle frame assembly 11, so that the terminal device 10 has good protection performance, and is beneficial to reducing the production cost of the terminal device 10.

It should be noted that the metal carrier board 300 should be understood in a broad sense. The specific structure of the metal carrier board 300 may be various, for example, at least a portion of the metal carrier board 300 is plate-shaped, so as to form a carrying structure of the carrying surface.

Optionally, in some embodiments, the metal carrier board 300 is provided with a board body and a connection board disposed at an edge of the board body. At least one of the plate body and the connecting plate is provided with a bearing structure.

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

In some embodiments, the material of the metal shielding member 100 and the material of the metal carrier plate 300 are metal, and the density of the metal carrier plate 300 is smaller than that of the metal shielding member 100. Thus, the middle frame assembly 11 can adapt to the light and thin requirements of the terminal device 10, and is beneficial to realizing the light weight of the terminal device 10, and is convenient to hold and/or carry.

In addition, at least one of a shielding structure, a ground structure, an antenna structure, etc. may be formed on the middle frame assembly 11 using the metal characteristics of the metal shield 100 and the metal carrier sheet 300.

In some embodiments, the metal guard 100 is at least one of titanium metal, titanium alloy, stainless steel alloy. Thus, the outer frame 110 has better strength, better corrosion resistance and wear resistance, and further improves the performance of the terminal device 10. And the metal carrier 300 is at least one of aluminum metal, magnesium metal, aluminum alloy or magnesium alloy. Easy to manufacture and advantageous to achieve weight reduction of the center frame assembly 11.

Optionally, the metal guard 100 is a titanium alloy and the metal carrier plate 300 is an aluminum alloy. The middle frame assembly 11 has low processing difficulty, and is beneficial to reducing the cost of large-area processing (particularly numerical control processing cost). Titanium alloy can also be used to protect and enhance the feel of the terminal device 10.

In some embodiments, the metal guard 100 and the metal connector 200 are made of metal, and the metal connector 200 is welded and/or integrally formed with the outer frame 110. Easy to assemble and beneficial to reducing the cost.

In an example, the material of the metal guard 100 and the material of the metal connector 200 are titanium alloy, and the two are integrally formed. Thus, the assembly process is reduced, the assembly error is reduced, and the metal guard 100 and the metal connector 200 are firmly connected.

In some embodiments, the metal guard 100 is die cast with the metal carrier board 300 through the metal connector 200. Thus, the assembly process is reduced, the assembly error is reduced, and the metal guard 100 and the metal carrier board 300 are firmly connected, so as to obtain the middle frame assembly 11 with reliable connection.

In some embodiments, the metal connectors 200 include at least two metal connectors 200 spaced apart along the periphery of the outer frame 110. In this way, at least two metal connectors 200 are used to form a plurality of connection sites between the outer frame 110 and the metal carrier 300, so as to improve the connection strength of the two.

It should be noted that the metal connector 200 and the metal carrier board 300 may be fixedly connected in a plurality of ways, including but not limited to at least one of a damascene fit, a snap fit, etc.

In some embodiments, at least one of the metal connector 200 and/or the outer frame body 110 includes at least one of the first protrusion 210 and the first recess 220, and is in an insert fit with the metal carrier board 300. In this way, at least one of the first convex portion 210 and the first concave portion 220 is in inlay fit with the metal connector 200, so that the connection area between the two can be increased, and the metal connector 200 and the metal carrier board 300 are firmly fixed.

Further, the first convex portion 210 and the first concave portion 220 are easily integrally formed with the metal carrier board 300 by a process such as die casting or injection molding.

It should be noted that the specific implementation manner of the first protrusion 210 may be various, including but not limited to a protrusion, a ridge, a hook, a disengagement preventing protrusion, etc.

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

It should be noted that the specific implementation of the first recess 220 may have various structures, including but not limited to a groove, a recess, a cavity, a concave hole, and the like.

As shown in fig. 3, 4, and 8, 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, the liquid in the die casting or injection molding process of the metal bearing plate 300 can flow into at least one of the first connecting hole 221 and the first connecting groove 222, so that the liquid is fixed, the metal connecting piece 200 and/or the outer frame body 110 and the metal bearing plate 300 are embedded and fixed, the assembly efficiency is high, and the production cost of the middle frame assembly 11 is further reduced.

Optionally, in some embodiments, the metal carrier board 300 includes a first connection portion 330 that is an insert fit with the first recess 220. In this way, the first connecting portion 330 can be inserted into the first recess 220, so as to achieve the mosaic fixation of the metal carrier board 300 and the metal connector 200 and/or the outer frame body 110.

As shown in fig. 9, in some embodiments, at least one metal connector 200 is provided with a plurality of first connecting holes 221. In this way, the connection area between the metal connector 200 and the metal carrier board 300 can be increased by using the plurality of first connection holes 221, so as to further increase the bonding strength of the two.

In one example, after the metal connection member 200 is integrally formed with the metal shielding member 100, the titanium aluminum bonding force is increased and the bonding area is increased through roughening treatment at the plurality of first connection holes 221 of the metal connection member 200 or the metal shielding member 100.

Alternatively, as shown in fig. 9, a plurality of first connection holes 221 form array micro holes on the metal connection member 200.

As shown in fig. 3 and 4, 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 that is insert-fitted with the first connection hole 221. In this way, the first connecting hole 221 is matched with the first connecting body 331 in a mosaic manner, so that a connecting structure is formed in the first connecting hole and the first connecting body 331, the anti-drop performance is improved, and the metal bearing plate 300 is fixedly inlaid with the metal connecting piece 200 and/or the outer frame body 110.

As shown in fig. 3 and 4, 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 in a snap fit with the first connection groove 222. In this way, the first connecting groove 222 and the second connecting body 332 are in embedded fit, so that the surfaces of the first connecting groove and the second connecting body are convenient to form a connecting structure, and the metal bearing plate 300 and the metal connecting piece 200 and/or the outer frame body 110 are embedded and fixed

Alternatively, as shown in fig. 4, in some embodiments, the outer frame 110 includes an outer frame surface 111 spaced opposite to the first connecting body 331 and an inner side surface 112 disposed opposite to the outer frame surface 111, and the first connecting groove 222 is provided with a notch 201 along a 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 in anti-disengaging fit in the direction from the outer frame surface 111 to the inner side surface 112. In this way, the notch 201 is utilized to facilitate the liquid metal carrier 300 to flow into the first connecting slot 222 and solidify to form the first connecting body 331, and the outer frame 110 and the metal carrier 300 are connected more tightly in the width and/or length direction of the middle frame assembly 11 through the anti-drop fit between the first connecting slot 222 and the first connecting body 331.

It should be noted that the specific structure of the first connecting slot 222 may be various, such as a special slot, a polygonal slot, a partial circular slot, a partial elliptical slot, etc.

As shown in fig. 3,4 and 6, in some embodiments, the first recess 220 includes a first connection groove 222 and a first connection hole 221 disposed at a bottom of the first connection groove 222, and the first connection portion 330 includes a first connection body 331 that is in an insert fit with the first connection hole 221 and a second connection body 332 that is in an insert fit with the first connection groove 222. In this way, the liquid metal carrier 300 is conveniently guided into the first connecting hole 221 by the first connecting groove 222, so that the first connecting body 331 and the second connecting body 332 formed integrally are solidified in the first connecting hole 221 and the first connecting groove 222, and the connection strength between the outer frame 110 and the metal carrier 300 is improved.

Referring to fig. 1 and 6, the middle frame assembly has an X-axis direction in the width direction, a Y-axis direction in the length direction, and a Z-axis direction in the thickness direction. The smaller the thickness direction (Z direction) of the middle frame component is, the lighter and thinner the terminal equipment is facilitated.

As shown in fig. 3, 4 and 6, in some embodiments, the first connection hole 221 is a through hole, and a depth direction of the first connection hole 221 is along a thickness direction (Z direction) of the outer frame 110. In this way, the liquid metal carrier 300 is guided into the first connecting hole 221 by the first connecting groove 222 and flows out from the other side of the first connecting hole 221, so that the first connecting body 331 and the second connecting body 332 formed integrally by curing in the first connecting hole 221 and the first connecting groove 222 can be formed at the other side of the first connecting hole 221, and simultaneously, the clamping body clamped and matched with the second connecting body 332 can be formed at the other side of the first connecting hole 221, so that the carrier can be prevented from being separated from the outer frame 110 along the thickness direction of the middle frame assembly 11, and the connection strength of the outer frame 110 and the metal carrier 300 can be further improved.

As shown in fig. 3, 4 and 6, in some embodiments, the first connecting grooves 222 include two connecting holes and are disposed at two ends of the first connecting hole 221 at intervals. The second connectors 332 are in one-to-one correspondence with the first connecting grooves 222, and are fixed at two ends of the first connector 331 at intervals. In this way, the liquid metal carrier 300 is guided into the first connection hole 221 by the first connection groove 222, and flows into the other first connection groove 222 from the other side of the first connection hole 221, so that the first connection body 331 and the two second connection bodies 332 are integrally formed by curing in the first connection hole 221 and the first connection groove 222, and the two second connection bodies 332 clamp the metal connection piece 200 and/or the outer frame body 110, thereby preventing the carrier from being separated from the outer frame body 110 along the thickness direction of the middle frame assembly 11, and further improving the connection strength of the outer frame body 110 and the metal carrier 300.

Further, in some embodiments, the outer frame 110 includes a first mating surface 223, and the first mating surface 223 is adjacent to the first connection portion 330 along the thickness direction of the outer frame 110, and the first mating surface 223 is disposed near the outer edge of the outer frame 110 with respect to the first connection portion 330. The middle frame assembly 11 further includes an insulating member 400, at least partially covering the first mating surface 223 and the first connecting body 331 of the insulating member 400.

As shown in fig. 6, in some embodiments, the outer frame body 110 includes an outer frame surface 111 and an inner side surface 112 opposite to the outer frame surface 111, and at least a portion of the metal carrying member is disposed along the direction from the outer frame surface 111 to the inner side surface 112 at intervals from the first mating surface 223 to form a receiving groove 341, and at least a portion of the insulating member 400 is filled in the receiving groove 341 and is disposed to cover the first mating surface 223 and the first connecting body 331. In this way, the accommodating groove 341 is used to accommodate the insulator 400, so that the first mating surface 223 and the first connecting body 331 are easy to cover, so that the insulator 400 is fixedly connected with the metal carrier board 300 and the metal protection component 100, and the connection strength between the metal carrier board 300 and the metal protection component 100 can be further improved.

As shown in fig. 6, in some embodiments, the first mating surfaces 223 include two first mating surfaces 223 and are disposed at two ends of the first connecting hole 221 at intervals, and at least part of the insulating member 400 is disposed to cover the two first mating surfaces 223 and the two first connecting bodies 331. In this way, the insulator 400 can wrap the first mating surface 223 and the first connecting body 331 along the thickness direction of the middle frame assembly 11, so that the insulator 400 is inlaid and fixed with the metal bearing plate 300 and the metal protection part 100, and the connection strength between the metal bearing plate 300 and the metal protection part 100 can be further improved.

It is understood that the metal connector 200 is formed as a part of the outer frame 110 when the metal connector 200 is integrally formed with the outer frame 110. The first concave portion 220 and/or the first convex portion 210 of the metal connector 200 may also be a part of the outer frame 110.

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.

As shown in fig. 5 and 7, in some embodiments, the middle frame assembly 11 further includes an insulating member 400, and the insulating member 400 is fixedly connected to the metal carrier board 300 and the metal shielding member 100. In this way, the insulator 400 is fixedly connected with the metal carrier board 300 and the metal guard 100, so that the connection strength between the metal carrier board 300 and the metal guard 100 can be further improved.

In addition, at least one of an insulating mounting region, an insulating connection portion, an insulating mounting portion, and the like may be formed on the middle frame assembly 11 by the insulating member 400, so that the mounting of different types of electronic devices 12 can be satisfied.

In some embodiments, the material of the metal protection part 100, the material of the metal connection part 200, and the material of the metal carrier 300 are metal materials. The antenna slit 11b is formed at a distance from a portion of the metal carrier 300 in a portion of the outer frame 110 such that the portion of the outer frame 110 forms the rim antenna 11a, or the portion of the outer frame 110 forms the rim antenna 11a with one of the metal connector 200 and the other portion of the metal carrier 300. In this way, the middle frame component 11 is utilized to form the frame antenna 11a, the space of the middle frame component 11 can be fully utilized to arrange the antennas, the arrangement difficulty of the terminal equipment 10 is reduced, the internal space of the terminal equipment 10 is conveniently and fully utilized, and the structure is more compact.

In some embodiments, at least one of the outer frame 110, the metal connector 200 and the metal carrier 300 is provided with a radiation branch 11c connected to the frame antenna 11 a. In this way, the radiation performance of the frame antenna 11a can be improved by using the radiation branches 11c, and the internal space of the middle frame assembly 11 is fully utilized.

Alternatively, the outer frame 110 is provided with a radiation stub 11c connected to the rim antenna 11 a.

Optionally, the metal connector 200 is provided with a radiating stub 11c connected to the bezel antenna 11 a.

Alternatively, the metal carrier board 300 is provided with a radiation stub 11c connected to the bezel antenna 11 a.

Alternatively, the outer frame 110 is mated with the metal connector 200 to form the radiation stub 11c connected to the bezel antenna 11 a.

Alternatively, the outer frame 110 cooperates with the metal connector 200 and a portion of the metal carrier 300 to form a radiation branch 11c to which the frame antenna 11a is connected.

Optionally, in some embodiments, on the orthographic projection plane of the middle frame assembly 11 in the thickness direction, at least one of a portion of the outer frame body 110, at least a portion of the metal connector 200, and a portion of the metal carrier board 300 is protruded on the antenna slot 11b to form the radiation branch 11c.

As shown in fig. 10 to 12, in some embodiments, the metal carrier plate 300 includes a carrier body 310 and a connection body 320, at least a portion of the carrier body 310 is disposed with a frame antenna 11a at intervals to form an antenna slot 11b, and the connection body 320 cooperates with the outer frame body 110 to form the frame antenna 11a. The number of the metal connectors 200 is at least two, and the metal connectors are arranged at intervals along the circumferential direction of the outer frame 110. The bearing body 310 is fixedly connected with at least one metal connector 200, and the connecting body 320 is fixedly connected with one metal connector 200 to form the radiation branch 11c. In this way, the metal connector 200 of the at least one metal connector 200 can realize the fixed connection between the bearing body 310 and the outer frame 110, and connect the bearing body 310 and the outer frame 110 into a whole. Meanwhile, other metal connectors 200 are fixedly connected with the connecting body 320, so that the connecting body 320 is matched with the outer frame body 110 to form the frame antenna 11a, the thickness of the frame antenna 11a is increased, the impedance is reduced, and the radiation performance of the frame antenna is improved.

In addition, the connection body 320 and the outer frame 110 are combined to form the frame antenna 11a, and the connection body 320 is easy to process, is convenient to adjust performance requirements of different frame antennas 11a, further reduces manufacturing difficulty of the middle frame assembly 11, and is easy to implement.

In combination with the foregoing embodiment of the first connecting portion 330, the first connecting portion 330 is disposed on the connecting body 320 (see fig. 12).

As shown in fig. 11 and 12, in some embodiments, the connecting body 320 includes a first body 321 fixedly connected to the metal connecting member 200 and a second body 322 bending and connected to the first body 321, and the second body 322 is spaced from the bearing body 310 along the thickness direction of the middle frame assembly 11 to form the radiation branch 11c. In this way, the avoidance of the bearing body 310 is facilitated, so as to improve the headroom of the frame antenna 11a, which is beneficial to further improving the performance of the frame antenna 11 a.

As can be appreciated, the first body 321 is provided with a first connection 330.

As can be seen from the drawings, the portion of the connection body 320 protrudes from the metal carrier board 300 in the thickness direction (i.e., Z direction) of the middle frame assembly 11.

Referring back to fig. 10, in some embodiments, the connection body 320 includes a power supply body 323 electrically connected to the frame antenna 11a, and the power supply body 323 is fixedly connected to the outer frame 110 through the metal connection member 200. In addition, the connection body 320 is utilized to form the power supply 323, and the connection body 320 is easy to process, is convenient to adjust the power supply requirements of different frame antennas 11a, further reduces the manufacturing difficulty of the middle frame assembly 11, and is easy to implement. The power supply 323 is fixedly connected with the outer frame 110 through the metal connector 200, which is beneficial to increasing the volume of the power supply 323, reducing the power supply resistance and improving the radiation performance of the frame antenna 11 a.

In addition, the manufacturing difficulty of the metal guard 100 is reduced, and the manufacturing cost is reduced.

Optionally, in some embodiments, the power supply 323 is provided with an internally threaded bore 301. Or the midframe assembly 11 may further comprise a nut, at least a portion of which is embedded in the power feed 323. The transmission member is fixed to the power feeding body 323 by a screw fastener such as a bolt, thereby realizing power feeding of the frame antenna 11 a.

In some embodiments, the bezel antenna 11a includes a first antenna 101 provided with a feed 323, the first antenna 101 including at least three radiating branches 11c.

Optionally, the first antenna 101 is a corner antenna. The power feeder 323 is provided at a corner of the center frame assembly 11. Therefore, the volume of the radiator can be increased by fully utilizing the corner space, the feed impedance of the corner antenna can be reduced, and the performance of the corner antenna is improved.

In combination with the foregoing embodiments of the second connectors 332, in some embodiments, the power supply 323 includes at least two second connectors 332, and at least two second connectors 332 are partially staggered and partially overlapped, and the metal connector 200 is provided with first connecting slots 222 corresponding to the second connectors 332 one by one. In this way, the at least two second connectors 332 are matched with the at least two corresponding first connecting grooves 222, which is beneficial to improving the connection strength and contact area between the metal connector 200 and the feeding body, and further reducing the impedance.

Alternatively, in some embodiments, the second connector 332 is cylindrical.

Optionally, in some embodiments, at least two second connectors 332 are disposed to intersect.

Optionally, in some embodiments, at least two first connecting grooves 222 are disposed to intersect.

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

The above embodiment of "at least two second connectors 332 are partially staggered and partially overlapped" can be understood by referring to fig. 8, and the first connection hole 221 of fig. 8 is changed to the first connection groove 222.

As shown in fig. 11, in some embodiments, the connection body 320 includes a grounding conductor 324 connected to the frame antenna 11a in a grounding manner, a portion of the grounding conductor 324 is fixedly connected to the outer frame body 110 through the metal connection piece 200, and another portion of the grounding conductor 324 is connected to the carrier body 310 in a grounding manner. In this way, the grounding connection of the frame antenna 11a to the carrier body 310 is facilitated by the grounding conductor 324, and the grounding of the frame antenna 11a is achieved.

In some embodiments, the ground conductor 324 is provided with at least two first connectors 331. In this way, the connection strength between the ground conductor 324 and the metal connector 200 can be improved.

As shown in fig. 11, in some embodiments, the bezel antenna 11a includes a second antenna 102 provided with a ground conductor 324, the second antenna 102 including at least three radiating branches 11c. Thus, the antenna design with different frequency bands and performance requirements can be met.

As shown in fig. 10 to 11, in some embodiments, the middle frame assembly 11 further includes an insulating member 400 fixedly connected to the metal carrier board 300 and the metal shielding member 100, and a portion of the insulating member 400 is filled in the antenna slot 11 b. In this way, the insulator 400 is fixedly connected with the metal carrier board 300 and the metal guard 100, so that the connection strength between the metal carrier board 300 and the metal guard 100 can be further improved. And at least part of the insulating member 400 is filled in the antenna slot 11b, so that the cantilever structure is avoided, and the strength of the frame antenna 11a is improved. Meanwhile, the insulation member 400 is used for increasing the connection area between the metal bearing plate 300 and the metal protection part 100, so that the strength and the stability of the middle frame assembly 11 are improved.

Optionally, in some embodiments, at least a portion of the outer frame 110 and at least a portion of the metal carrier board 300 are spaced apart to form the accommodating groove 341, and at least a portion of the insulating member 400 is filled in the accommodating groove 341. In this way, the liquid insulating member 400 is accommodated by the accommodating groove 341, and after the insulating member 400 is fixed, the insulating member 400 is easily fixedly connected with the metal carrier plate 300 and the metal protection member 100, so as to improve the connection strength between the metal carrier plate 300 and the metal protection member 100

As shown in fig. 7 and 8, in some embodiments, at least one of the metal guard 100, the metal connector 200 and the metal carrier 300 is provided with a second connecting portion 340, and the second connecting portion 340 is in an insert fit with the insulator 400. In this way, the second connecting portion 340 is inlaid with the insulating member 400, so that the connecting area of the second connecting portion and the insulating member can be increased, and the metal protection part 100 and the metal carrier 300 are firmly fixed.

Optionally, at least one of the metal guard 100 and the metal connector 200 is provided with a second connection portion 340, and the metal carrier board 300 is also provided with the second connection portion 340, and each is in an insert fit with the insulator 400. The connection strength of the metal guard 100 and the metal carrier board 300 is easily improved by the insulator 400.

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, at least one of the second protruding portion and the second recessed portion is in embedded fit with the insulating member 400, so that the connection area can be increased, and the metal guard 100 and the metal carrier board 300 are firmly fixed.

Further, the use of the second convex portion and the second concave portion facilitates the integral molding with the insulator 400 by the injection molding or the like.

It should be noted that the specific implementation manner of the second protrusion may be various, including but not limited to a protrusion, a ridge, a hook, and an anti-disengagement protrusion.

In addition, at least one of the metal carrier board 300, the metal connector 200, and the outer frame body 110 includes a plurality of second protrusions. Or at least one of the metal carrier board 300, the metal connector 200, and the outer frame body 110 includes a plurality of second recesses (as can be understood with reference to fig. 8). Or at least one of the metal carrier board 300, the metal connector 200, and the outer frame body 110 includes at least one second protrusion and at least one second recess.

It should be noted that the specific implementation of the second recess may have various structures, including but not limited to grooves, recesses, cavities, concave holes, and the like.

As shown in fig. 7 and 8, in some embodiments, the second recess includes one of the second connection hole 343 or the second connection groove 342. In this way, the liquid in the die casting or injection molding process of the metal bearing plate 300 can flow into at least one of the second connecting hole 343 and the second connecting groove 342, so that the liquid is fixed, the embedding fixation of the insulating member 400 and at least one of the metal bearing plate 300, the metal connecting member 200 and the outer frame body 110 is realized, the assembly efficiency is high, and the production cost of the middle frame assembly 11 is further reduced.

Referring back to fig. 7, in some embodiments, the insulator 400 is provided with an insert 410 that is an insert fit with the second recess. In this way, the insert 410 can be inserted into the second recess, and the insert fixation of the insulator 400 and at least one of the metal carrier board 300, the metal connector 200, and the outer frame 110 is achieved.

As shown in fig. 7, in some embodiments, the second connection part 340 includes at least two and is spaced apart along the inner side of the outer frame 110. In this way, a plurality of connection positions are formed between the insulating member 400 and the outer frame 110 and the metal carrier 300 by using at least two second connection portions 340, so as to improve the connection strength of the three.

As shown in fig. 7, in some embodiments, at least one second connecting portion 340 is provided with a plurality of second connecting grooves 342. In this way, the connection area between the insulator 400 and the metal carrier board 300 and/or the metal guard 100 can be increased by using the plurality of first connection holes 221, so as to further increase the bonding strength of the two.

Referring back to fig. 7, in an example, after the metal guard 100 and the metal carrier board 300 are die-cast, the bonding force between the insulating member 400 and the metal carrier board 300 and the bonding area are increased by roughening the metal carrier board 300 and/or the plurality of second connecting grooves 342 of the metal guard 100.

Optionally, the plurality of first connection holes 221 form an array of micro-holes on the metal carrier plate 300 and/or the metal guard 100.

As shown in fig. 13, in some embodiments, the outer frame 110 includes a first end 103 provided with a radiation branch 11c, and the first end 103 is spaced from other portions of the outer frame 110 to form a break 11d, where the break 11d communicates with the antenna slot 11 b. Wherein at least part of the insulator 400 fills the break 11d. In this way, the at least part of the insulating member 400 is filled in the break 11d, so as to avoid forming a concave structure, and the appearance of the middle frame assembly 11 is textured.

As shown in fig. 13, in some embodiments, the first end 103 includes at least one of a third protrusion and a third recess 103 a. In this way, by the fitting engagement of at least one of the third convex portion and the third concave portion 103a with the insulator 400, the connection area can be increased, so that the metal guard 100 and the insulator 400 are firmly fixed.

Further, the third convex portion and the third concave portion 103a are easily integrally molded with the insulator 400 by a process such as injection molding.

It should be noted that the specific implementation manner of the third protrusion may be various, including but not limited to a protrusion, a ridge, a hook, and an anti-disengagement protrusion.

It should be noted that the specific implementation of the third recess 103a may have various structures, including but not limited to a groove, a recess, a cavity, a concave hole, and the like.

Optionally, in some embodiments, the third recess 103a includes at least one of a third connection hole and a third connection groove.

Optionally, in some embodiments, the metal connector 200 is fixedly connected to the connector body 320 and the outer frame 110, and cooperates with a portion of the insulator 400 to form a frame.

As shown in fig. 13, in some embodiments, a portion of the first end 103 is inclined on the orthographic plane of the middle frame assembly 11 in the thickness direction. The space of the antenna slot 11b is conveniently and fully utilized to extend the length of the long radiation branch 11c so as to meet the design of the frame antenna 11a with different frequency bands or performance requirements, and the arrangement difficulty of the frame antenna 11a is reduced.

Specifically, in some embodiments, at least a portion of the first end 103 is inclined toward the direction approaching the metal carrier board 300 in the direction away from the bezel antenna 11a on the orthographic projection plane of the thickness direction of the middle frame assembly 11.

As shown in fig. 13, in one embodiment, the first end 103 includes a first body 103b that is disposed at a distance from other portions of the outer frame 110 to form a break 11d, and a second body 103c that is connected to the first body 103b in a bending manner. On the orthographic projection plane of the middle frame assembly 11 in the thickness direction, the second body 103c is inclined toward the direction approaching the metal carrier board 300 along the width direction of the antenna slit 11 b.

As shown in fig. 13, in some embodiments, the second body 103c includes a first sidewall 1031 for forming the break 11 d. At least a portion of the first side wall 1031 is curved on the front projection surface of the middle frame assembly 11 in the thickness direction, and turns away from the frame antenna 11 a. Therefore, the sealing area can be increased by utilizing the arc-shaped first side wall 1031, and the glue overflow during secondary injection molding is avoided.

The terminal device 10 may include a handheld device, a vehicle mounted device, a cellular phone (cellular phone), a smart phone (smart phone), a Personal Digital Assistant (PDA) computer, a tablet computer, a laptop computer (laptop computer), a vehicle mounted computer, a wearable device, etc.

Referring to fig. 14, in some embodiments, the electronic device 12 may further include one or more of 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.

The processing component generally controls overall operation of the terminal device, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component may include one or more processors to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component may include one or more modules that facilitate interactions 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.

The memory is configured to store various types of data to support operations at the terminal device. Examples of such data include instructions of any application or method configured to operate on the terminal device, contact data, phonebook data, messages, pictures, video, and the like. The memory may be implemented by any type of volatile or nonvolatile memory device or 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 or optical disk.

The power supply assembly provides power to the various components of the terminal device. The power components may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the terminal devices.

The multimedia component comprises the display module disclosed by the disclosure, and human-computer interaction is facilitated. If the display module includes a touch panel, the display module may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or sliding action, but also the duration and pressure associated with the touch or sliding operation. In some embodiments, the multimedia assembly includes a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the terminal device is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component is configured to output and/or input an audio signal. For example, the audio component includes a Microphone (MIC) configured to receive external audio signals when the terminal device is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may be further stored in a memory or transmitted via a communication component. In some embodiments, the audio assembly further comprises a speaker configured to output an audio signal.

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

The sensor assembly includes one or more sensors configured to provide status assessment of various aspects for the terminal device. For example, the sensor assembly may detect the on/off state of the terminal device, the relative positioning of the assemblies, such as the display and keypad of the terminal device, the sensor assembly may also detect the change in position of the terminal device or one of the assemblies 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 in the absence of any physical contact. The sensor assembly may also include a photosensitive element, such as a CMOS or CCD image sensor, configured for use in imaging applications. In some embodiments, the sensor assembly may further include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component is configured to facilitate communication between the terminal device and other devices in a wired or wireless manner. The terminal device may access a wireless network based on a communication standard, such as WiFi,2G, 3G, 4G, 6G, etc., or a combination thereof. In one exemplary embodiment, the communication component receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present disclosure.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first," "second," etc. can include at least one such feature, either explicitly or implicitly. In the description of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless explicitly specified otherwise.

In the present disclosure, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, in communication between two elements, or in an interaction relationship between two elements, unless explicitly specified otherwise. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.

In this disclosure, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "mounted," "positioned," "secured" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when an element is referred to as being "fixedly connected" to another element, the two elements may be fixed by a detachable connection, or may be fixed by a non-detachable connection, so that the two elements may be fixed.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples merely represent several embodiments of the present disclosure, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that variations and modifications can be made by those skilled in the art without departing from the inventive concepts of the present disclosure, which are within the scope of the present disclosure.

Claims

1. A center assembly, comprising:

the metal protection piece comprises an outer frame body;

a metal connecting piece fixedly arranged on the outer frame body, and

The metal bearing plate is at least partially arranged on the inner side of the outer frame body and is fixedly connected with the outer frame body through the metal connecting piece;

The middle frame assembly is provided with a frame antenna, at least part of the frame antenna and part of the metal bearing plate are arranged at intervals to form an antenna gap, and at least one of the outer frame body, the metal connecting piece and the metal bearing plate is provided with a radiation branch connected with the frame antenna.

2. The middle frame assembly according to claim 1, wherein the metal connectors comprise at least two metal connectors, at least two metal connectors are arranged at intervals along the periphery of the outer frame body, and the metal connectors are welded and fixed with the outer frame body and/or integrally formed;

And/or at least part of the outer frame body forms the frame antenna, or part of the outer frame body is connected with one of the part of the metal connecting piece and the part of the metal bearing plate to form the frame antenna;

and/or, on the orthographic projection plane of the thickness direction of the middle frame assembly, at least one of the outer frame body part, at least one part of the metal connecting piece and at least one part of the metal bearing plate is arranged in the antenna gap in a protruding mode so as to form the radiation branch.

3. The center assembly of claim 1, wherein at least one of the metal connector and/or the outer frame includes at least one of a first protrusion and a first recess and is in a snap fit with the metal carrier.

4. A mid-frame assembly as claimed in claim 3, wherein a portion of the metal carrier plate is in a snap fit with the first recess;

5. The middle frame assembly according to claim 4, wherein the metal connection members comprise at least two and are spaced apart along the inner side of the outer frame body;

and/or at least one of the metal connectors is provided with a plurality of first connecting holes.

6. The middle frame assembly according to claim 1, wherein the metal bearing plate comprises a bearing body and a connecting body, at least part of the bearing body and the frame antenna are arranged at intervals to form the antenna gap, the bearing body is fixedly connected with at least one of the connecting body and the metal connecting piece, and part of the connecting body is fixedly connected with the outer frame body through the metal connecting piece to form the frame antenna.

7. The mullion assembly of claim 6, wherein at least one of the connection body and the load bearing body is in a snap fit with the metal connector;

And/or, the metal connecting piece is integrally formed with the outer frame body, and the metal connecting piece is fixedly connected with the connecting body and the outer frame body to form at least part of the frame;

the bearing body is fixedly connected with at least one metal connecting piece, and the connecting body is fixedly connected with one metal connecting piece and forms the radiation branch.

8. The middle frame assembly of claim 6, wherein the metal connector is integrally formed with the outer frame body;

and/or the metal connector comprises a first concave part, and at least one of the connecting body and the bearing body comprises a first connecting part which is in embedded fit with the first concave part.

9. The mullion assembly of claim 8, wherein the first recess includes a first connection hole, the first connection portion including a first connector body that is a snap fit with the first connection hole;

And/or, the first concave part comprises a first connecting groove, and the first connecting part comprises a second connecting body which is in embedded fit with the first connecting groove.

10. The middle frame assembly according to claim 9, wherein the outer frame body comprises an outer frame surface and an inner side surface, the outer frame surface is spaced opposite to the first connecting body, the inner side surface is opposite to the outer frame surface, 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 is in anti-falling fit with the first connecting portion along the direction from the outer frame surface to the inner side surface.

11. The mullion assembly of claim 9, wherein the first recess includes a first connection slot and a first connection hole disposed at a bottom of the first connection slot, the first connection portion including a first connector that is in a mosaic fit with the first connection hole and a second connector that is in a mosaic fit with the first connection slot.

12. The center assembly according to claim 11, wherein the first connection hole is a through hole, and a depth direction of the first connection hole is set along a thickness direction of the outer frame body.

13. The middle frame assembly according to claim 12, wherein the first connecting grooves are formed in two ends of the first connecting hole at intervals, and the second connecting bodies are in one-to-one correspondence with the first connecting grooves and are fixedly arranged at two ends of the first connecting bodies at intervals.

14. The center assembly of any of claims 6 to 13, wherein the connection body includes a power feed connected to the bezel antenna, the power feed being fixedly connected to the outer frame body through the metal connection member.

15. The center assembly of claim 14, wherein the power feed is provided with an internally threaded bore, or wherein the center assembly further comprises a nut, at least a portion of which is embedded in the power feed;

And/or the frame antenna comprises a first antenna provided with the feed body, and the first antenna comprises at least three radiation branches.

16. The middle frame assembly according to claim 15, wherein the power supply body comprises at least two second connectors, parts of the at least two second connectors are staggered and partially overlapped, and the metal connectors are provided with first connecting grooves corresponding to the second connectors one by one.

17. The mullion assembly of claim 16, wherein the second connector is columnar;

And/or at least two second connectors are arranged in an intersecting manner;

and/or at least two first connecting grooves are arranged in an intersecting manner;

and/or, at least two of the second connectors have different cross-sectional sizes.

18. The center assembly of any one of claims 6 to 17, wherein the connection body includes a ground conductor grounded to the bezel antenna, a portion of the ground conductor being fixedly connected to the outer frame body by the metal connection, and another portion of the ground conductor being grounded to the carrier body.

19. The mullion assembly of claim 18, wherein the grounding conductor is provided with at least two first connection holes;

And/or the frame antenna comprises a second antenna provided with the grounding conductor, and the second antenna comprises at least three radiation branches.

20. The center assembly of any one of claims 1 to 19, further comprising an insulator fixedly coupled to the metal carrier plate and the metal guard, a portion of the insulator filling the antenna slot.

21. The mullion assembly of claim 20, wherein at least one of the metal guard, the metal connector, and the metal carrier plate is provided with a second connection portion that is a snap fit with the insulator.

22. The mullion assembly of claim 21, wherein the second connection portion includes at least one of a second convex portion and a second concave portion;

and/or the frame antenna is provided with the second connecting part;

And/or, at least one of the metal protection piece and the metal connecting piece is provided with the second connecting part, and the metal bearing plate is also provided with the second connecting part and is in embedded fit with the insulating piece.

23. The mullion assembly of claim 22, wherein the second recess comprises one of a second attachment hole or a second attachment slot;

and/or the insulating piece is provided with an embedded body which is in embedded fit with the second concave part.

24. The middle frame assembly according to claim 23, wherein the second connection parts include at least two and are spaced apart along the inner side of the outer frame body;

25. The center frame assembly of claim 20, wherein the rim antenna includes a first end provided with the radiating stub, the first end being spaced from other portions of the outer frame body to form a break, the break being in communication with the antenna slot;

wherein at least part of the insulating member is filled in the break.

26. The mullion assembly of claim 25, wherein the first end portion includes at least one of a third convex portion and a third concave portion;

And/or, the metal connecting piece is fixedly connected with the part of the metal bearing plate and the outer frame body, and is matched with the part of the insulating piece to form a frame.

27. The mullion assembly of claim 26, wherein the third recess includes at least one of a third connection hole or a third connection slot.

28. The center frame assembly according to claim 27, wherein a portion of the first end portion is inclined on an orthographic plane of the center frame assembly in a thickness direction.

29. The center frame assembly according to claim 28, wherein at least part of the first end portion is inclined toward the metal carrier plate in a direction away from the bezel antenna on an orthographic projection plane of the center frame assembly in a thickness direction;

Or the first end part comprises a first body and a second body, wherein the first body and the other parts of the outer frame body are arranged at intervals to form a fracture, the second body is connected with the first body in a bending mode, and the second body is inclined towards the direction close to the metal bearing plate along the width direction of the antenna gap on the orthographic projection surface of the thickness direction of the middle frame assembly.

30. The assembly of claim 29, wherein the second body includes a first sidewall for forming the break, and wherein at least a portion of the first sidewall is curved and curves away from the radiator in a forward projection of the center assembly in a thickness direction.

31. The mullion assembly of claim 1, wherein the metal guard has a strength that is greater than the strength of the metal load bearing plate.

32. The mullion assembly of claim 31, wherein the metal guard is at least one of titanium metal, titanium alloy, stainless steel alloy, and the metal load bearing plate is at least one of aluminum metal, magnesium metal, aluminum alloy, or magnesium alloy;

And/or, the metal guard piece and the metal connecting piece are integrally formed, and the metal guard piece is die-cast and formed with the metal bearing plate through the metal connecting piece.

33. A terminal device comprising an electronic component and the center assembly of any one of claims 1 to 32, wherein the electronic component is disposed on the center assembly and electrically connected to the bezel antenna.