CN108039561B - Middle frame assembly and electronic equipment - Google Patents

Abstract

The embodiment of the application discloses center subassembly and electronic equipment, wherein, including center and clamp plate, the center with the clamp plate sets up respectively in electronic circuit board both sides, the clamp plate will electronic circuit board is fixed in on the center, the clamp plate pass through the connecting piece with center fixed connection, be equipped with the antenna radiation body on the clamp plate. The antenna radiator is arranged on the pressing plate, and the pressing plate can realize the function of fixing the electronic circuit board on the middle frame and can also play a role of the antenna radiator. Can practice thrift electronic equipment inner space, be favorable to improving the inside compact structure nature of electronic equipment, the center can integrated into one piece moreover, and the center has continuity and wholeness, and intensity is big, can increase the intensity of center.

Description

Middle frame assembly and electronic equipment

Technical Field

The application relates to the technical field of electronic equipment, in particular to a middle frame assembly and electronic equipment.

Background

With the development of network technology and the improvement of the intelligent degree of electronic equipment, users can realize more and more functions such as conversation, chatting, game playing and the like through the electronic equipment.

The user realizes signal transmission through the antenna of the electronic equipment in the conversation and chat processes of the electronic equipment. The conventional antenna is manufactured by cutting one or more openings in a frame of a middle frame and setting the cut portions as antennas. However, the broken portion is provided as an antenna, which may break the continuity of the bezel and reduce the strength of the bezel.

Disclosure of Invention

The embodiment of the application provides a middle frame assembly and electronic equipment, which can increase the strength of a middle frame.

In a first aspect, an embodiment of the present application provides a middle frame assembly, including middle frame and clamp plate, the middle frame with the clamp plate sets up respectively in electronic circuit board both sides, the clamp plate will electronic circuit board is fixed in on the middle frame, the clamp plate pass through the connecting piece with middle frame fixed connection, be equipped with antenna radiator on the clamp plate.

In a second aspect, an embodiment of the present application further provides an electronic device, where the electronic device includes a middle frame assembly, and the middle frame assembly is the middle frame assembly described above.

According to the middle frame assembly provided by the embodiment of the application, the antenna radiating body is arranged on the pressing plate, and the pressing plate can realize the function of fixing the electronic circuit board on the middle frame and can also play a role of the antenna radiating body. Can practice thrift electronic equipment inner space, be favorable to improving the inside compact structure nature of electronic equipment, the center can integrated into one piece moreover, and the center has continuity and wholeness, and intensity is big, can increase the intensity of center.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a first structural schematic diagram of an electronic device according to an embodiment of the present application.

Fig. 2 is a second schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 3 is a third schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 4 is a fourth schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a portion of an electronic device according to an embodiment of the present application.

Fig. 6 is an exploded view of fig. 5.

Fig. 7 is a schematic structural diagram of a middle frame assembly according to an embodiment of the present application.

Fig. 8 is another schematic structural diagram of a middle frame assembly according to an embodiment of the present application.

Fig. 9 is a schematic structural diagram of a pressure plate according to an embodiment of the present application.

Fig. 10 is a fifth structural schematic diagram of an electronic device according to an embodiment of the present application.

Fig. 11 is a sixth schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to 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," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The embodiment of the application provides a middle frame assembly and electronic equipment. The details will be described below separately.

In the present embodiment, the description will be made from the perspective of a middle frame assembly, which may be specifically provided in an electronic device, such as a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), and the like.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 1 comprises a housing 10, an antenna radiator 20, a printed circuit board 30, a display 40, a battery 50.

Wherein, the case 10 may include a cover plate 11, a middle frame 12 and a rear cover 13, the cover plate 11, the middle frame 12 and the rear cover 13 are combined with each other to form the case 10, and the case 10 has a closed space formed by the cover plate 11, the middle frame 12 and the rear cover 13 to accommodate the antenna radiator 20, the printed circuit board 30, the display screen 40, the battery 50 and the like. In some embodiments, the cover plate 11 is covered on the middle frame 12, the rear cover 13 is covered on the middle frame 12, the cover plate 11 and the rear cover 13 are located on opposite sides of the middle frame 12, the cover plate 11 and the rear cover 13 are oppositely arranged, and the closed space of the housing 10 is located between the cover plate 11 and the rear cover 13.

In some embodiments, the housing 10 may be a metal housing. It should be noted that the material of the housing 10 in the embodiment of the present application is not limited to this, and other manners may also be adopted, such as: the housing 10 may include a plastic portion and a metal portion. For another example: the housing 10 may be a plastic housing. Also for example: the housing 10 may be a metal and plastic housing structure. The cover plate 11 may be a transparent glass cover plate. In some embodiments, the cover plate 11 may be a glass cover plate made of a material such as sapphire.

It should be noted that, the structure of the housing in the embodiment of the present application is not limited to this, for example: the rear cover and the middle frame are integrally formed to form a middle frame 12 structure. Specifically, the housing 10 includes a cover plate 11 and a middle frame 12, and the cover plate 11 and the middle frame 12 are fixed to each other to form a closed space for accommodating the antenna radiator 20, the printed circuit board 30, the display screen 40, the battery 50, and other components.

Wherein the periphery of the housing 10 comprises a first side 101, a second side 102, a third side 103 and a fourth side 104 connected end to end. Wherein the first side portion 101 and the third side portion 103 are oppositely disposed, and the second side portion 102 and the fourth side portion 104 are oppositely disposed.

Referring to fig. 2, fig. 2 is another schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The housing 10 may be provided with an earphone hole 105, a microphone hole 106, a speaker hole 108, a usb interface hole 107 at its periphery. The earphone hole 105, the microphone hole 106, the speaker hole 108, and the usb interface hole 107 are all through holes.

Wherein the antenna radiator 20 is installed inside the case 10. The antenna radiator 20 is used to transmit a wireless signal to the outside or receive a wireless signal transmitted from another electronic device. The antenna radiator 20 may be, for example, a radio frequency antenna, a bluetooth antenna, a wireless fidelity (WiFi) antenna, or the like.

In some embodiments, the antenna radiator 20 may be disposed on the cover plate 11, the antenna radiator 20 may be disposed on the middle frame 12, and the antenna radiator 20 may be disposed on the rear cover 13. In some embodiments, the antenna radiator 20 is disposed on the middle frame 12, and the antenna radiator 20 is disposed on the middle frame 12 to form a middle frame assembly. I.e. the middle frame assembly comprises a middle frame 12 and an antenna radiator 20.

Wherein the antenna radiator 20 may be directly and integrally formed with the middle frame 12. Specifically, the middle frame 12 may include a metal substrate, such as a magnesium alloy substrate, and the antenna radiator 20 is made of magnesium alloy, and the metal substrate antenna radiator 20 is injection molded in the same process. The antenna radiator 20 may also be removably secured to the center frame 12, such as by screws that thread the antenna radiator to the center frame 12. It should be noted that the fixing method of the antenna radiator 20 and the middle frame 12 is not limited to this, and the fixing method may also be performed by clipping, inserting, or gluing. Therefore, the antenna radiator is arranged at the peripheral position of the metal substrate, the middle frame can be integrally formed, the middle frame has continuity and integrity, the strength is high, and the strength of the middle frame can be increased.

In some embodiments, the antenna radiator 20 is disposed at the third side 103 of the housing 10, or the antenna radiator 20 is adjacent to the third side 103 of the housing 10, or the antenna radiator 20 is close to the third side of the housing 10. And, the antenna radiator 20 is close to the second side portion 102. Specifically, the antenna radiator 20 is located at a corner position between the third side 103 and the second side 102.

It should be noted that the antenna radiator 20 may also be disposed at other positions, such as: referring to fig. 3, fig. 3 is another schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device shown in fig. 3 differs from the electronic device shown in fig. 1 in that: the antenna radiator 20 is disposed at the first side 101 of the housing 10, and the antenna radiator 20 may be disposed near the fourth side 104 or near the second side 102. It should be noted that, in some other embodiments, the antenna radiator 20 may also be disposed at the second side portion 102 of the casing 10 or at the fourth side portion 104 of the casing 10, which is not illustrated herein.

The printed circuit board 30 is mounted in the housing 10, the printed circuit board 30 may be a motherboard of the electronic device 1, and one, two or more of the functional components 60 such as the motor, the microphone 62, the speaker 64, the earphone interface 61, the universal serial bus interface 63, the camera, the distance sensor, the ambient light sensor, the receiver, and the processor may be integrated on the printed circuit board 30. The printed circuit board 30 may be integrated with a microphone 62, a speaker 64, a headphone interface 61, a universal serial bus interface 63. The earphone interface 61 is disposed at the earphone hole 105, the microphone 62 is disposed at the microphone hole 106, the usb interface 63 is disposed at the usb interface hole 107, and the speaker 64 is disposed at the speaker hole 108.

In some embodiments, the printed circuit board 30 is secured within the housing 10. Specifically, the printed circuit board 30 may be screwed to the middle frame 12 by screws, or may be snapped to the middle frame 12 by a snap-fit manner. It should be noted that the way of fixing the printed circuit board 30 to the middle frame 12 is not limited to this, and other ways, such as a way of fixing by a snap and a screw, may also be used.

Wherein the battery 50 is mounted in the housing 10, and the battery 50 is electrically connected to the printed circuit board 30 to supply power to the electronic device 1. The case 10 may serve as a battery cover of the battery 50. The case 10 covers the battery 50 to protect the battery 50, and particularly, the rear cover covers the battery 50 to protect the battery 50, reducing damage of the battery 50 due to collision, falling, and the like of the electronic apparatus 1.

Wherein the display screen 40 is installed in the housing 10, and at the same time, the display screen 40 is electrically connected to the printed circuit board 30 to form a display surface of the electronic device 1. The display screen 40 includes a display area 111 and a non-display area 112. The display area 111 may be used to display a screen of the electronic device 1 or provide a user with touch control. The top area of the non-display area 112 is provided with an opening for transmitting sound and light, and the bottom of the non-display area 112 can be provided with functional components such as a fingerprint module, a touch key and the like. The cover plate 11 is mounted on the display screen 40 to cover the display screen 40, and forms the same display area and non-display area as the display screen 40, which can be referred to specifically as the display area and the non-display area of the display screen 40.

The structure of the display screen 40 is not limited to this. For example, the display screen may be a full-screen or an opposite-type screen, specifically, please refer to fig. 4, and fig. 4 is another schematic structural diagram of the electronic device according to the embodiment of the present application. The electronic device in fig. 4 differs from the electronic device in fig. 1 in that: the non-display area is directly formed on the display screen 40, for example, the non-display area of the display screen 40 is set to be a transparent structure or a through hole structure so that an optical signal passes through, or the non-display area of the display screen 40 is directly provided with a hole or a notch for light conduction, and the like, and the front camera, the distance sensor, the ambient light sensor and the like can be arranged at the position of the non-display area so that the front camera can take a picture and the photoelectric sensor can detect the light.

It should be noted that, in some embodiments, the display screen 40 may not include the non-display area, but is configured in a full-screen structure, and the distance sensor and the ambient light sensor may be disposed below the display screen.

In some embodiments, please refer to fig. 5 and fig. 6, fig. 5 is a schematic diagram of a partial structure of an electronic device according to an embodiment of the present disclosure, and fig. 6 is an exploded schematic diagram of fig. 5. The middle frame assembly 70 includes a middle frame 12 and a pressing plate 35, and the antenna radiator 20 is disposed on the pressing plate 35. The electronic circuit board 31 is mounted on the middle frame 12, and the electronic circuit board 31 is fixed on the middle frame 12 by the pressing plate 35, that is, the middle frame 12 and the pressing plate 35 are respectively arranged on two sides of the electronic circuit board 31. The fixing mode can be welding, clamping, and the like, and the pressing plate 35 can be fixedly connected with the middle frame 12 through a connecting piece.

The electronic circuit board 31 may be a main board of the electronic device 1, and one, two or more of the functional components 60 such as a motor, a microphone 62, a speaker 64, an earphone interface 61, a universal serial bus interface 63, a camera, a distance sensor, an ambient light sensor, a receiver, and a processor may be integrated on the electronic circuit board 31. The electronic circuit board 31 may be the printed circuit board 30 in the above embodiment, or may be another electronic circuit board.

The antenna radiator 20 is provided on the pressing plate 35. The pressing plate 35 may be a metal pressing plate, the metal pressing plate is coupled to the feeding end of the antenna, and the metal pressing plate forms an antenna radiator. The press plate 35 may also comprise a metal part and a non-metal part, the metal part being coupled to the feed end of the antenna, the metal part forming an antenna radiator.

In some embodiments, please refer to fig. 7 and 8, fig. 7 is a schematic structural diagram of a middle frame assembly provided in an embodiment of the present application, and fig. 8 is another schematic structural diagram of the middle frame assembly provided in the embodiment of the present application. The middle frame 12 may include a ring frame 124 and a rectangular assembly plate 125, and the rectangular assembly plate 125 may be disposed on the top of the ring frame 124 or on the bottom of the ring frame 124. The width of the rectangular assembling plate 125 may be the same as that of the ring frame 124, or may be smaller than that of the ring frame 124. When the width of the rectangular assembling plate 125 is smaller than that of the ring frame 124, the rectangular assembling plate 125 is disposed on the top side or the bottom side of the ring frame 124. The electronic circuit board 31 is set on the rectangular assembly board 125, and then the electronic circuit board 31 is fixed on the rectangular assembly board 125 by the pressing plate 35.

In some embodiments, the press plate 35 includes at least one protrusion 351, the protrusion 351 forming the antenna radiator 20. Specifically, the pressing plate 35 may include a pressing plate body having a regular shape such as a rectangle, a square, etc., and one or more protruding portions 351 are formed by extending the edge of the pressing plate body outwards, and the one or more protruding portions 351 form an antenna radiator. The platen 35 may also be irregularly shaped including one or more protrusions that form an antenna radiator. The projections may be rectangular, semi-circular, semi-elliptical, and other irregular shapes.

In some embodiments, please refer to fig. 9, and fig. 9 is a schematic structural diagram of a pressure plate according to an embodiment of the present disclosure. The protruding portion 351 of the pressing plate is provided with a connecting hole 352, the protruding portion 351 is fixedly connected to the middle frame 12 through a metal connecting member passing through the connecting hole 352, and the protruding portion 351 is coupled to the middle frame 12 through the metal connecting member, so that an antenna signal is transmitted through the middle frame 12, the metal connecting member and the antenna radiator 20. Specifically, the protruding portion 351 of the pressing plate 35 is made of a metal material, the protruding portion 351 is provided with a connecting hole, the middle frame 12 is provided with a hole corresponding to the connecting hole, the electronic circuit board 31 is provided with a through hole corresponding to the connecting hole, the metal connecting piece sequentially penetrates through the connecting hole 352, the through hole and the hole, and the pressing plate 35, the electronic circuit board 31 and the middle frame 12 are fixedly connected. The opening of the middle frame 12 is a feeding end of the antenna, and the feeding end of the antenna is coupled with the antenna radiator 20 of the pressing plate 35 through a metal connecting piece. The pressing plate 35 can realize the function of fixing the electronic circuit board 31, can play the role of an antenna radiator, and is coupled through a metal connecting piece, simple and convenient, and strong in operability. Wherein the metal connecting piece can be a screw, a bolt and the like. Wherein, the connecting hole and/or the opening can be internally provided with threads, which is convenient for fixation.

In some embodiments, please refer to fig. 10, where fig. 10 is a schematic diagram illustrating a fifth structure of an electronic device according to an embodiment of the present disclosure. The platen 35 includes a plurality of unconnected subplaters 353. Specifically, the electronic circuit board 31 may include a first electronic circuit board 311 disposed on the top of the middle frame 12 and a second electronic circuit board 312 disposed on the bottom of the middle frame 12, where the first electronic circuit board 311 integrates one, two or more of the functional components 60 such as a motor, a camera, a distance sensor, an ambient light sensor, a receiver, and a processor. The second electronics board 312 integrates one, two or more of the microphone 62, the speaker 64, the headset interface 61, the universal serial bus interface 63. The first electronic circuit board 311 and the second electronic circuit board 312 are respectively provided with one sub-pressing plate 351, the two sub-pressing plates 353 are both provided with antenna radiators 20, the antenna radiators 20 of the two sub-pressing plates 353 respectively correspond to a first antenna and a second antenna, and the first antenna and the second antenna respectively correspond to one of a radio frequency antenna, a bluetooth antenna and a wireless fidelity (WiFi) antenna. It should be noted that a plurality of sub-pressing plates 353 may be provided corresponding to one electronic circuit board 31, and one, two, or more sub-pressing plates of the plurality of sub-pressing plates 353 may be provided with the antenna radiator 20 as needed.

In some embodiments, the platen 35 secures the electronic circuit board 31 to the center frame. The electronic circuit board 31 is provided with an antenna feeding terminal, and the antenna radiator 20 of the pressing plate 35 is coupled with the antenna feeding terminal on the electronic circuit board 31, so that the antenna signal of the electronic circuit board 31 is transmitted through the antenna radiator 20. Specifically, the antenna radiator 20 of the pressing plate 35 may be coupled to the antenna feeding terminal on the electronic circuit board 31 through a metal dome.

In some embodiments, the material of the antenna radiator 20 may be magnesium alloy. It should be noted that the antenna radiator may refer to the above contents, and is not described herein again.

In some embodiments, the middle frame 12 may include a metal substrate 121 and a non-metal substrate 122 fixedly connected to each other, and the metal substrate 121 and the non-metal substrate 122 are formed by injection molding to form a unitary middle frame 12 structure. It should be noted that the middle frame 12 can refer to the above contents, which are not described herein. The metal substrate 121 may be made of magnesium alloy.

In some embodiments, the antenna radiator 20 may be integrally formed with the platen, such as: the antenna radiator 20 and the pressing plate are injection molded in the same mold. The antenna radiator 20 is a protrusion formed to extend outward from the periphery of the pressure plate.

Wherein, the pressing plate can be directly obtained by technical processing or purchased.

The pressing plate and the antenna radiator 20 may be formed as a single unit in one process, and the pressing plate and the antenna radiator 20 may be defined as a pressing plate. And, when purchased, generally, a pressing plate and the antenna radiator 20 are integrally provided, and similarly, the pressing plate and the antenna radiator 20 having an integral structure are defined as a pressing plate. The pressing plate comprises a pressing plate main body made of magnesium alloy material and an extension part 20 made of magnesium alloy material.

Wherein the protruding part can be used as an antenna radiator to transmit and receive signals. The protruding portion may specifically refer to the antenna radiator, and is not described herein again.

The metal substrate 121 can refer to the above contents, and is not described herein again.

In some embodiments, please refer to fig. 11, and fig. 11 is a schematic diagram illustrating a sixth structure of an electronic device according to an embodiment of the present application.

The electronic device 1 comprises signal sources 15, 16, 17, 18, 19. Each signal source is for generating a wireless signal. For example, signal source 15 is for generating Bluetooth signals, signal source 16 is for generating Wireless-Fidelity (Wi-Fi) signals, signal source 17 is for generating high frequency radio frequency signals, signal source 18 is for generating intermediate frequency radio frequency signals, and signal source 19 is for generating low frequency radio frequency signals.

The electronic device 1 further comprises matching circuits 25, 26, 27, 28, 29. The matching circuit 25 is connected to the signal source 15, the matching circuit 26 is connected to the signal source 16, the matching circuit 27 is connected to the signal source 17, the matching circuit 28 is connected to the signal source 18, and the matching circuit 29 is connected to the signal source 19. Each matching circuit may include electronic components such as power amplifiers, filters, and the like. Each matching circuit is used for processing wireless signals generated by the connected signal source such as power amplification, filtering and the like.

The electronic device 1 further includes a combiner 31. The combiner 31 is connected to the matching circuits 28 and 29. The combiner 31 is configured to perform carrier aggregation on the uplink radio frequency signal or perform frequency division on the downlink radio frequency signal.

The electronic device 1 further comprises antenna radiators 51, 52, 53 and an antenna radiator 54. The antenna radiators 51, 52, 53, and 54 are connected to the matching circuits 21, 22, and 23 and the combiner 31, respectively. The antenna radiators 51, 52, and 53 may be antenna radiators provided inside the electronic device 1. The antenna radiators 51, 52, 53 may be, for example, antenna radiators arranged on a circuit board of the electronic device 1. The antenna radiator 54 may be an extension provided on the middle frame of the electronic device 1. For example, the antenna radiator 54 may be a magnesium alloy extension on the middle frame of the electronic device 1. The antenna radiators 51, 52, and 53 and the antenna radiator 54 may be the antenna radiator 20 in the above embodiment.

Each antenna radiator is used for transceiving radio frequency signals. For example, the antenna radiator 51 is used for transceiving bluetooth signals, the antenna radiator 52 is used for transceiving wireless fidelity signals, the antenna radiator 53 is used for transceiving high-frequency radio frequency signals, and the antenna radiator 54 is used for transceiving medium-low frequency radio frequency signals. The medium-low frequency radio frequency signal is a carrier aggregation signal of a medium-frequency radio frequency signal and a low-frequency radio frequency signal.

The electronic device 1 further comprises switches 66, 67, 68, 69. The switches 66, 67, 68, and 69 are connected to the antenna radiators 51, 52, 53, and 54, respectively. The switches 66, 67, 68, 69 may be single pole, single throw switches.

The electronic device 1 further comprises grounding points 71, 72, 73, 74. The grounding points 71, 72, 73, 74 are connected to the switches 61, 62, 63, 64, respectively. The grounding points 71, 72, 73, 74 are used to realize grounding of the antenna radiators 51, 52, 53, 54, respectively. The switches 61, 62, 63, 64 are used to switch on or off the grounding points 71, 72, 73, 74, respectively.

Those skilled in the art will appreciate that the structure of the electronic device 1 shown in fig. 1 and 2 does not constitute a limitation of the electronic device 1. The electronic device 1 may comprise more or fewer components than shown, or some components may be combined, or a different arrangement of components. The electronic device 1 may further include a memory, a bluetooth module, etc., which will not be described herein.

The center frame assembly and the electronic device provided by the embodiments of the present application are described in detail above, and the principles and embodiments of the present application are described herein by applying specific examples, and the description of the above embodiments is only used to help understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (7)

1. The middle frame assembly is characterized by comprising a middle frame and a pressing plate, wherein the middle frame and the pressing plate are respectively arranged on two sides of an electronic circuit board, the electronic circuit board is fixed on the middle frame by the pressing plate, the pressing plate is fixedly connected with the middle frame through a connecting piece, and an antenna radiating body is arranged on the pressing plate;

the antenna radiator is characterized in that the pressing plate is a metal pressing plate and comprises a pressing plate main body, the pressing plate further comprises at least one protruding part formed by extending outwards along the edge of the pressing plate main body, the protruding part forms the antenna radiator, and the antenna radiator and the pressing plate are integrally formed;

wherein, be equipped with the connecting hole on the antenna radiator, the electronic circuit board corresponds the connecting hole is equipped with the through-hole, the connecting piece is the metal connecting piece, the center corresponds the connecting hole is equipped with the trompil, the trompil of center is the feed end of antenna, the metalwork passes the connecting hole the through-hole with the trompil, and will the clamp plate the electronic circuit board with center fixed connection, through the metal connecting piece with the feed end of antenna with the antenna radiator coupling of clamp plate, the protruding portion passes through the metal connecting piece with the center coupling, so that antenna signal passes through successively the center the metal connecting piece with the antenna radiator sends out.

2. The middle frame assembly of claim 1, wherein said platen comprises a plurality of unconnected subplates.

3. The middle frame assembly according to claim 1, wherein said press plate comprises a first sub-press plate and a second sub-press plate, said first sub-press plate being disposed at a top portion of said middle frame, said second sub-press plate being disposed at a bottom portion of said middle frame.

4. The middle frame assembly of claim 1, wherein said pressure plate is disposed at the top or bottom of said middle frame.

5. The middle frame assembly of claim 1, wherein said antenna radiator is coupled to said electronics board.

6. The middle frame assembly according to claim 1, wherein the antenna radiator is made of a magnesium alloy, and/or the middle frame is made of a magnesium alloy.

7. An electronic device, characterized in that the electronic device comprises a middle frame assembly, wherein the middle frame assembly is the middle frame assembly according to any one of claims 1 to 6.

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