Middle frame component and electronic device

Abstract

The present disclosure relates to the field of antenna technologies, and specifically to a middle frame assembly and an electronic device. The middle frame assembly includes: a frame, a connecting plate, and a conductor plate. The frame has one or more metal branches, and the metal branches are used as antenna radiators; the connecting plate is connected to the frame, and the frame at least partially surrounds the connecting plate. A clearance area is provided on the connecting plate, and the clearance area corresponds to the metal branches; at least part of the conductor plate is disposed in the clearance area, and there is a gap between the conductor plate and the metal branches. It can improve the antenna radiation efficiency of the electronic device.

Description

Technical Field

[0001] The present disclosure relates to the technical field of antennas, and more particularly, to a middle frame assembly and an electronic device. Background Art

[0002] With the development and progress of technology, people have higher and higher requirements for the functions of electronic devices such as mobile phones. In order to implement various functions, a variety of devices often need to be integrated inside the electronic device. At present, electronic devices are also developing towards being thinner and lighter, which results in less and less layout space for various devices on the electronic device. In order to save the space inside the electronic device, the antenna of the electronic device can be arranged on the frame, and the clearance area of the antenna arranged on the frame is greatly restricted, which leads to low radiation efficiency of the antenna of the electronic device.

[0003] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0004] The purpose of the present disclosure is to provide a middle frame assembly and an electronic device, so as to at least to a certain extent improve the antenna radiation efficiency of the electronic device.

[0005] According to the first aspect of the present disclosure, a middle frame assembly is provided, and the middle frame assembly includes:

[0006] A frame having at least one metal branch, and the metal branch is used as an antenna radiator;

[0007] A connecting plate connected to the frame, and the frame at least partially surrounds the connecting plate. A clearance area is provided on the connecting plate, and the clearance area corresponds to the metal branch;

[0008] A conductor plate is at least partially disposed in the clearance area, and there is a gap between the conductor plate and the metal branch.

[0009] The middle frame assembly provided by the embodiments of the present disclosure includes a frame, a connecting plate and a conductor plate. A metal branch used as an antenna radiator is provided on the frame. The frame at least partially surrounds the connecting plate. A clearance area is provided on the connecting plate. The conductor plate is disposed in the clearance area. The conductor plate can reflect the electromagnetic waves emitted by the antenna radiator, avoiding the problem of low antenna radiation efficiency caused by the display screen absorbing too much electromagnetic waves, and thus can improve the antenna radiation efficiency of the electronic device.

[0010] According to the second aspect of the present disclosure, an electronic device is provided, and the electronic device includes the above middle frame assembly.

[0011] The electronic device provided by an embodiment of the present disclosure includes a middle frame assembly. In the middle frame assembly, metal branches serving as antenna radiators are provided on the border. The border at least partially surrounds a connection plate, and a clearance area is provided on the connection plate. A conductor plate is disposed in the clearance area, and the conductor plate can reflect the electromagnetic waves emitted by the antenna radiator, avoiding the problem of low antenna radiation efficiency caused by the display screen absorbing too much electromagnetic waves, and thus improving the antenna radiation efficiency of the electronic device.

[0012] According to a third aspect of the present disclosure, there is provided an electronic device, the electronic device including:

[0013] A middle frame assembly, the middle frame assembly including a border and a connection plate, the border having at least one metal branch, the metal branch serving as an antenna radiator, the connection plate being connected to the border, and the border at least partially surrounding the connection plate, a clearance area being provided on the connection plate, and the clearance area being adjacent to the metal branch;

[0014] A display screen, the display screen being connected to the middle frame;

[0015] A conductor plate, the conductor plate being connected to a side of the display screen facing the connection plate, and a projection area of the conductor plate on the connection plate at least partially overlapping with the clearance area.

[0016] The electronic device provided by an embodiment of the present disclosure, by providing a conductor plate between the display screen and the connection plate, and at least part of the projection of the conductor plate on the connection plate being located in the clearance area, reflects the electromagnetic waves emitted by the metal branch through the conductor plate, avoiding the problem of low antenna radiation efficiency caused by the display screen absorbing too much electromagnetic waves, and thus improving the antenna radiation efficiency of the electronic device.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and those of ordinary skill in the art can obtain other drawings without creative efforts based on these drawings.

[0019] Figure 1 Schematic diagram of a first middle frame assembly provided for an exemplary embodiment of the present disclosure;

[0020] Figure 2 Schematic diagram of a second middle frame assembly provided for an exemplary embodiment of the present disclosure;

[0021] Figure 3 Schematic diagram of the third middle frame component provided by an exemplary embodiment of the present disclosure;

[0022] Figure 4 Schematic diagram of the fourth middle frame component provided by an exemplary embodiment of the present disclosure;

[0023] Figure 5 Schematic diagram of the fifth middle frame component provided by an exemplary embodiment of the present disclosure;

[0024] Figure 6 Schematic diagram of the sixth middle frame component provided by an exemplary embodiment of the present disclosure;

[0025] Figure 7 Schematic diagram of the antenna radiation efficiency of an electronic device provided by an exemplary embodiment of the present disclosure;

[0026] Figure 8 Schematic diagram of the first electronic device provided by an exemplary embodiment of the present disclosure;

[0027] Figure 9 Schematic diagram of the second electronic device provided by an exemplary embodiment of the present disclosure. Detailed implementation manners

[0028] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote like or similar structures, and thus their detailed descriptions will be omitted.

[0029] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification only for convenience, for example, according to the directions of the examples described in the accompanying drawings. It can be understood that if the device of the icon is turned upside down, the component described as "upper" will become the component "lower". When a structure is "on" another structure, it may mean that a structure is integrally formed on another structure, or that a structure is "directly" disposed on another structure, or that a structure is "indirectly" disposed on another structure through another structure.

[0030] An exemplary embodiment of the present disclosure first provides a middle frame component 10, as Figure 1As shown in the figure, the middle frame assembly 10 includes: a frame 110, a connecting plate 120, and a conductor plate 130. The frame 110 has one or more metal branches 111, and the metal branches 111 are used as antenna radiators; the connecting plate 120 is connected to the frame 110, and the frame 110 at least partially surrounds the connecting plate 120. A clearance area 121 is provided on the connecting plate 120, and the clearance area 121 corresponds to the metal branches 111; the conductor plate 130 is at least partially disposed in the clearance area 121, and there is a gap between the conductor plate 130 and the metal branches 111.

[0031] The middle frame assembly 10 provided by the embodiments of the present disclosure includes a frame 110, a connecting plate 120, and a conductor plate 130. Metal branches 111 used as antenna radiators are provided on the frame 110. The frame 110 at least partially surrounds the connecting plate 120. A clearance area 121 is provided on the connecting plate 120. The conductor plate 130 is disposed in the clearance area 121. The conductor plate 130 can reflect the electromagnetic waves emitted by the antenna radiator, avoiding the problem of low antenna radiation efficiency caused by the display screen absorbing too much electromagnetic waves, and thus can improve the antenna radiation efficiency of the electronic device.

[0032] Next, each part of the middle frame assembly 10 provided by the embodiments of the present disclosure will be described in detail:

[0033] The frame 110 is connected to the connecting plate 120, and the frame 110 at least partially surrounds the connecting plate 120. The frame 110 and the connecting plate 120 form a middle frame. The frame 110 can be a metal frame. Multiple slits are provided on the metal frame, and the multiple slits divide the metal frame into multiple metal branches 111. Insulating materials can be filled in the slits. For example, the frame 110 can be an aluminum alloy frame 110 or a stainless steel frame 110, etc. The insulating materials filled in the slits can be rubber or plastic, etc. The insulating materials form insulating segments, and the two ends of the insulating segments are respectively connected to the metal branches 111. The insulating segments can be formed in the slits by injection molding, or the insulating segments can be connected to the metal branches 111 at both ends by glue connection.

[0034] The connecting plate 120 can be connected to the inner wall of the frame 110. The distance from the connecting plate 120 to the upper surface of the frame 110 is less than the distance from the connecting plate 120 to the lower surface of the frame 110. The upper surface of the frame 110 is the side of the frame 110 close to the display screen, and the lower surface of the frame 110 is the side of the frame 110 away from the display screen.

[0035] The connection plate 120 is provided with a clearance area 121, which corresponds to the metal stub 111. The correspondence between the clearance area 121 and the metal stub 111 means that the clearance area 121 is used to improve the antenna performance of the metal stub 111. The clearance area 121 and the metal stub 111 are adjacent. The clearance area 121 is configured to enable the performance of the antenna radiator to meet the usage requirements. For example, the width of the clearance area 121 can be from 1 millimeter to 5 millimeters. The clearance area 121 can be a hollowed-out area or the clearance area 121 can be provided with an insulating member.

[0036] The middle frame assembly 10 can be a cuboid or a structure similar to a cuboid. On this basis, the frame 110 can be a rectangular ring or a structure similar to a rectangular ring. The frame 110 can include a first side 101, a second side 102, a third side 103, and a fourth side 104 that are connected end to end in sequence. At the connection points of any two connected sides among the first side 101, the second side 102, the third side 103, and the fourth side 104, a fillet or a chamfer can be provided. The antenna radiator can be located on the first side 101, the second side 102, the third side 103, or the fourth side 104. Or the antenna radiator can be disposed at any vertex of the frame 110. The antenna radiator can include a first metal segment and a second metal segment. The first metal segment and the second metal segment are connected, and the first metal segment is located on one side extending from the vertex of the frame 110, and the second metal segment is located on the other side extending from the vertex of the frame 110.

[0037] The metal stub 111 serves as an antenna radiator, and the antenna radiator is used to transmit and receive radio frequency signals (electromagnetic waves). When transmitting radio frequency signals, the antenna radiator receives an excitation signal, converts the excitation signal into an electromagnetic wave, and emits the electromagnetic wave. When receiving radio frequency signals, the antenna radiator receives the electromagnetic waves emitted by devices such as base stations, converts the electromagnetic waves into electrical signals, and transmits them to the radio frequency circuit.

[0038] The connection plate 120 and the frame 110 can be integrally formed. For example, the connection plate 120 and the frame 110 can be integrally formed by casting or stamping. Or the connection plate 120 and the frame 110 can be formed separately and then connected by means such as glue connection or bolt connection.

[0039] When the frame 110 is a metal frame and the connection plate 120 and the frame 110 are integrally formed, the material of the connection plate 120 is the same as that of the frame 110, that is, the material of the connection plate 120 is also a metal material. The frame 110 is divided into metal stubs 111 serving as antenna radiators through multiple gaps. Through holes are opened at positions on the connection plate 120 close to the metal stubs 111. On the one hand, the through holes are used to insulate the metal stubs 111 from the connection plate 120. On the other hand, the area where the through holes are located is also used to form the clearance area 121 of the antenna. In practical applications, the width of the antenna clearance area 121 is from 1 millimeter to 5 millimeters.

[0040] Among them, the through holes on the connecting plate 120 for forming the clearance area 121 can be filled with insulating materials. For example, plastics or rubbers can be filled in the through holes. Alternatively, the through holes on the connecting plate 120 for forming the clearance area 121 may not be filled with materials. The embodiments of the present disclosure are not limited thereto.

[0041] The frame 110 is a metal frame. When the connecting plate 120 and the frame 110 are formed separately, the materials of the connecting plate 120 and the frame 110 can be the same or different. When the materials of both the connecting plate 120 and the frame 110 are conductor materials, through holes are formed at positions on the connecting plate 120 close to the metal stub 111. On the one hand, these through holes are used to insulate the metal stub 111 from the connecting plate 120, and on the other hand, the areas where the through holes are located are also used to form the clearance area 121 of the antenna. When the material of the connecting plate 120 is an insulating material, the antenna clearance area 121 on the connecting plate 120 can be a hollow structure or a non-hollow structure. The embodiments of the present disclosure do not make specific limitations thereto.

[0042] The conductor plate 130 can be embedded in the connecting plate 120, and one side of the conductor plate 130 is exposed to the connecting plate 120. The surface of the conductor plate 130 exposed to the connecting plate 120 is flush with the surface of the connecting plate 120. The fact that the surface of the conductor plate 130 is flush with the surface of the connecting plate 120 can ensure the flatness of the connecting plate 120, facilitate the connection of the connecting plate 120 to devices such as display screens, and can save the internal space of the electronic device.

[0043] Among them, the conductor plate 130 can be disposed on the side of the connecting plate 120 close to the display screen. Disposing the conductor plate 130 on the side of the connecting plate 120 close to the display screen can reflect the electromagnetic waves propagated by the antenna radiator in the direction of the display screen, reducing the absorption amount of the electromagnetic waves by the display screen. Embedding the conductor plate 130 in the side of the connecting plate 120 close to the display screen can avoid the conductor plate 130 protruding from the connecting plate 120, thus increasing the distance between the display screen and the connecting plate 120, and can reduce the thickness of the electronic device. Of course, in practical applications, the conductor plate 130 can also be disposed on the side of the connecting plate 120 away from the display screen. The embodiments of the present disclosure are not limited thereto.

[0044] Alternatively, the conductor plate 130 can be connected to the surface of the connecting plate 120. At this time, the connecting plate 120 can be formed on the surface of the connecting plate 120 by electroplating or deposition. At this time, the connecting plate 120 is a thin film structure. The connecting plate 120 with a thin film structure can reduce the thickness of the electronic device.

[0045] The conductor plate 130 may include a metal sheet disposed in the clearance area 121, and the gap between the metal sheet and the metal stub is less than a preset threshold. The metal sheet is connected to the connection plate 120. The metal sheet may be embedded in the connection plate 120 or the metal sheet may be disposed on the surface of the connection plate 120.

[0046] The metal sheet may be embedded in the connection plate 120, and one side of the metal sheet is exposed to the connection plate 120. The surface of the metal sheet exposed to the connection plate 120 is flush with the surface of the connection plate 120. The flatness of the surface of the metal sheet and the connection plate 120 can ensure the flatness of the connection plate 120, facilitate the connection of the connection plate 120 to devices such as a display screen, and can save the internal space of the electronic device.

[0047] The metal sheet may be disposed on the side of the connection plate 120 close to the display screen. Disposing the metal sheet on the side of the connection plate 120 close to the display screen can reflect the electromagnetic wave propagated by the antenna radiator in the direction of the display screen and reduce the absorption amount of the electromagnetic wave by the display screen. Embedding the metal sheet in the side of the connection plate 120 close to the display screen can prevent the conductor plate 130 from protruding from the connection plate 120, thereby avoiding the problem of increasing the distance between the display screen and the connection plate 120 and reducing the thickness of the electronic device. Of course, in practical applications, the metal sheet may also be disposed on the side of the connection plate 120 away from the display screen, and the embodiments of the present disclosure are not limited thereto.

[0048] Alternatively, the metal sheet may be connected to the surface of the connection plate 120. At this time, the metal sheet may be a metal thin film formed on the surface of the connection plate 120 by means of electroplating or deposition. The metal sheet in the form of a thin film structure can reduce the thickness of the electronic device.

[0049] When the connection plate 120 is made of an insulating material, the area corresponding to the clearance area 121 on the connection plate 120 is also an insulating material, that is, the connection plate 120 is provided with an insulating portion in the clearance area 121, and the metal sheet is connected to the insulating portion.

[0050] When the connection plate 120 is made of a metal material, the connection plate 120 has a hollow structure in the clearance area 121. At this time, in order to connect the metal sheet, the middle frame assembly 10 further includes an insulating filling plate, and the insulating filling plate is filled in the clearance area 121, and the metal sheet is connected to the insulating filling plate.

[0051] A gap is provided between the conductor plate 130 and the metal stub 111, and the width of the gap between the conductor plate 130 and the metal stub 111 is 0.5 mm to 2 mm. The width of the gap refers to the distance from the side of the metal stub 111 close to the conductor plate 130 to the side of the conductor plate 130 close to the metal stub 111.

[0052] One side of the conductive plate 130 close to the metal stub and one side of the metal stub 111 close to the conductive plate 130 are parallel. That is, the extending direction of the conductive plate 130 is the same as that of the metal stub. The conductive plate 130 may be a rectangular structure.

[0053] Exemplarily, the frame 110 includes a first side 101, a second side 102, a third side 103, and a fourth side 104, and the first side 101, the second side 102, the third side 103, and the fourth side 104 are connected end to end in sequence. The first side 101 is the top frame 110, the third side 103 is the bottom frame 110, and the second side 102 and the fourth side 104 are the side frames 110.

[0054] In a feasible embodiment of the present disclosure, as Figure 1 shown, the metal stub 111 is disposed on the second side 102. A first gap and a second gap are provided on the second side 102, and the metal stub 111 serving as the antenna radiator is between the first gap and the second gap. A grounding point is provided on the metal stub 111, and the grounding point is connected to the connection plate 120 or the grounding portion on the main board. The distance from the grounding point to the end of the metal stub 111 is a preset value. For example, when the operating frequency band of the antenna radiator is N77, the distance from the grounding point to the end of the metal stub 111 is 10 millimeters to 15 millimeters. The conductive plate 130 is a rectangular mechanism, the conductive plate 130 and the metal stub 111 are arranged in parallel, and the projection of the conductive plate 130 on the second side 102 is located between the grounding point and the end of the metal stub 111.

[0055] In an embodiment of the present disclosure, as Figure 1 shown, the conductive plate 130 may be disposed on one side of the second side 102 above the grounding point. Or as Figure 2 shown, the conductive plate 130 may be disposed on one side of the second side 102 below the grounding point.

[0056] Wherein, when the connection plate 120 is made of a conductive material, in the direction perpendicular to the second side 102, the conductive plate 130 extends from the edge of the gap to the conductive portion of the connection plate 120, that is, the conductive plate 130 covers the area of the clearance area 121 on the connection plate 120 except for the gap.

[0057] At the N77 frequency band, the metal stub 111 is disposed on the second side 102, and the conductive plate 130 is disposed in the clearance area 121. The radiation efficiency of the metal stub 111 serving as the antenna radiator is as Figure 7 shown, in Figure 7 where the abscissa is the frequency and the ordinate is the antenna radiation efficiency. Compared with the traditional antenna, the antenna radiation efficiency of the antenna radiator on the middle frame assembly 10 provided by the embodiment of the present disclosure is significantly improved.

[0058] In another feasible embodiment of the present disclosure, as Figure 4As shown, the metal stub 111 can be disposed at the intersection of the first side 101 and the second side 102. The metal stub 111 can include a first metal segment and a second metal segment. The first metal segment is located on the first side 101, the second metal segment is located on the second side 102, and the first metal segment and the second metal segment are connected. A fillet is provided at the intersection of the first metal segment and the second metal segment. On this basis, the conductor plate 130 is also provided with a fillet at the position facing the intersection of the first metal segment and the second metal segment, and the arc segments of the fillets on the frame 110 and the conductor plate 130 are concentrically arranged.

[0059] Among them, the conductor plate 130 can be a rectangular structure, and a fillet is provided at the vertex of the rectangle facing the intersection of the first metal segment and the second metal segment. Alternatively, the conductor plate 130 can also include a first conductor segment and a second conductor segment. The first conductor segment and the second conductor segment are connected, and the first conductor segment is parallel to the first metal segment, and the second conductor segment is parallel to the second metal segment. A fillet is provided at the intersection of the first conductor segment and the second conductor segment.

[0060] A grounding point can be provided on the first metal segment or the second metal segment. The grounding point is connected to the connection plate 120 or the grounding part on the main board. The distance from the grounding point to the end of the metal stub 111 is a preset value. For example, when the operating frequency band of the antenna radiator is N77, the distance from the grounding point to the end of the metal stub 111 is 10 millimeters to 15 millimeters. The distance from the grounding point to the end of the metal stub 111 refers to the length along its extension direction, and can also be understood as the distance from the grounding point to the end of the metal stub 111 when the metal stub is unfolded into a straight line.

[0061] In the embodiment of the present disclosure, as Figure 3 shown, the conductor plate 130 can be disposed on one side of the second side 102 below the grounding point. Or as Figure 4 shown, the conductor plate 130 can be disposed on one side of the second side 102 above the grounding point.

[0062] In another feasible embodiment of the present disclosure, as Figure 5 shown, the metal stub 111 can be disposed at the intersection of the first side 101 and the fourth side 104. The metal stub 111 can include a first metal segment and a second metal segment. The first metal segment is located on the first side 101, the second metal segment is located on the fourth side 104, and the first metal segment and the second metal segment are connected. A fillet is provided at the intersection of the first metal segment and the second metal segment. On this basis, the conductor plate 130 is also provided with a fillet at the position facing the intersection of the first metal segment and the second metal segment, and the arc segments of the fillets on the frame 110 and the conductor plate 130 are concentrically arranged.

[0063] Among them, the conductor plate 130 may be a rectangular structure, and a fillet is provided at the vertex of the rectangle facing the intersection of the first metal segment and the second metal segment. Alternatively, the conductor plate 130 may also include a first conductor segment and a second conductor segment, the first conductor segment and the second conductor segment are connected, the first conductor segment is arranged parallel to the first metal segment, and the second conductor segment is arranged parallel to the second metal segment. A fillet is provided at the intersection of the first conductor segment and the second conductor segment.

[0064] A ground point may be provided on the first metal segment or the second metal segment. The ground point is connected to the grounding part on the connection plate 120 or the main board. The distance from the ground point to the end of the metal stub 111 is a preset value. For example, when the operating frequency band of the antenna radiator is N77, the distance from the ground point to the end of the metal stub 111 is 10 millimeters to 15 millimeters. The distance from the ground point to the end of the metal stub 111 refers to the length along its extension direction, and can also be understood as the distance from the ground point to the end of the metal stub 111 when the metal stub is unfolded into a straight line.

[0065] In a feasible embodiment of the present disclosure, as Figure 6 shown, the metal stub 111 is provided on the fourth side 104, a first slit and a second slit are provided on the fourth side 104, and the metal stub 111 serving as the antenna radiator is located between the first slit and the second slit. A ground point is provided on the metal stub 111, and the ground point is connected to the grounding part on the connection plate 120 or the main board. The distance from the ground point to the end of the metal stub 111 is a preset value. For example, when the operating frequency band of the antenna radiator is N77, the distance from the ground point to the end of the metal stub 111 is 10 millimeters to 15 millimeters. The conductor plate 130 is a rectangular mechanism, the conductor plate 130 is arranged parallel to the metal stub 111, and the projection of the conductor plate 130 on the fourth side 104 is located between the ground point and the end of the metal stub 111.

[0066] In the embodiment of the present disclosure, the conductor plate 130 may be provided on one side of the fourth side 104 above the ground point. Or the conductor plate 130 may be provided on one side of the fourth side 104 below the ground point.

[0067] Among them, when the connection plate 120 is made of a conductive material, the conductor plate 130 extends from the edge of the slit to the conductive part of the connection plate 120 in the direction perpendicular to the fourth side 104, that is, the conductor plate 130 covers the area of the clearance area 121 on the connection plate 120 except for the slit.

[0068] In the embodiment of the present disclosure, the operating frequency band of the antenna radiator is N77 or N78. Of course, in actual applications, the operating frequency band of the metal stub 111 serving as the antenna radiator may be other frequency bands, and the embodiment of the present disclosure is not limited thereto.

[0069] The middle frame assembly 10 provided by the embodiments of the present disclosure includes a frame 110, a connecting plate 120, and a conductor plate 130. A metal branch 111 serving as an antenna radiator is provided on the frame 110. The frame 110 at least partially surrounds the connecting plate 120. A clearance area 121 is provided on the connecting plate 120. The conductor plate 130 is disposed in the clearance area 121. The conductor plate 130 can reflect the electromagnetic waves emitted by the antenna radiator, avoiding the problem of low antenna radiation efficiency caused by the display screen absorbing too much electromagnetic waves, and thus improving the antenna radiation efficiency of the electronic device.

[0070] The exemplary embodiments of the present disclosure further provide an electronic device. As Figure 8 shown, the electronic device includes the above-mentioned middle frame assembly 10.

[0071] Among them, the middle frame assembly 10 includes: a frame 110, a connecting plate 120, and a conductor plate 130. The frame 110 has one or more metal branches 111, and the metal branches 111 serve as antenna radiators. The connecting plate 120 is connected to the frame 110, and the frame 110 at least partially surrounds the connecting plate 120. A clearance area 121 is provided on the connecting plate 120, and the clearance area 121 is adjacent to the metal branches 111. The conductor plate 130 is at least partially disposed in the clearance area 121, and there is a gap between the conductor plate 130 and the metal branches 111.

[0072] The electronic device provided by the embodiments of the present disclosure includes a middle frame assembly 10. In the middle frame assembly 10, a metal branch 111 serving as an antenna radiator is provided on the frame 110. The frame 110 at least partially surrounds the connecting plate 120. A clearance area 121 is provided on the connecting plate 120. The conductor plate 130 is disposed in the clearance area 121. The conductor plate 130 can reflect the electromagnetic waves emitted by the antenna radiator, avoiding the problem of low antenna radiation efficiency caused by the display screen absorbing too much electromagnetic waves, and thus improving the antenna radiation efficiency of the electronic device.

[0073] The electronic device provided by the embodiments of the present disclosure can be an electronic device with wireless communication functions such as a mobile phone, a tablet computer, an e-reader, a personal digital assistant, or a wearable device.

[0074] The following takes the electronic device as a mobile phone as an example to detail the electronic device provided by the embodiments of the present disclosure:

[0075] The electronic device provided by the embodiments of the present disclosure may further include components such as a display screen 20, a rear cover 30, a main board, and a battery. The display screen 20 and the rear cover 30 are respectively connected to the middle frame assembly 10. The display screen 20 forms the front shell of the electronic device, and the rear cover 30 forms the rear shell of the electronic device. The display screen 20, the middle frame assembly 10, and the rear cover 30 form an accommodation space, and components such as the main board and the battery are disposed in this accommodation space.

[0076] The display screen 20 can be a liquid crystal display screen 20, an OLED display screen 20, a miniLED display screen 20 or a microLED display screen 20. The display screen 20 is used to display images and texts. The display screen 20 may include conductor materials such as an electrode layer, a driving circuit layer and an interlayer via hole. Therefore, the electromagnetic waves emitted by the antenna radiator towards the display screen 20 are absorbed by the conductor materials in the display screen 20. And because the distribution of the conductor materials in the display screen 20 is relatively complex, the electromagnetic waves reflected by the display screen 20 are less, resulting in a lower radiation efficiency of the antenna.

[0077] The main board can be connected to the connection board 120, and devices such as a processor (CPU, GPU, MCU, etc.), a power management circuit, a storage device, various sensors and a radio frequency module are provided on the main board. The main board can be connected to the connection board 120 by connection methods such as glue connection or screw connection. A grounding part can also be provided on the main board, and the grounding part on the main board can be connected to the grounding part on the connection board 120.

[0078] The power management circuit is connected to the battery, and the power signal output by the battery is transmitted to the power management circuit. The power management circuit is used to process the power signal and transmit the processed power signal to each electrical appliance.

[0079] The radio frequency module is used to receive and transmit radio frequency signals. The radio frequency module can be connected to the power management circuit to obtain a power signal from the power management circuit. The radio frequency module is also connected to the metal stub 111 on the frame 110. The radio frequency module provides an excitation signal to the metal stub 111, and the metal stub 111 emits electromagnetic waves in response to the excitation signal. An amplification circuit or a tuning circuit can also be connected to the radio frequency module and the metal stub 111.

[0080] The conductor plate 130 is disposed in the clearance area 121 on the connection board 120, that is, at least part of the display screen 20 and the metal stub 111 are isolated by the conductor plate 130. The conductor plate 130 can reflect the electromagnetic waves emitted by the metal stub 111, thereby preventing this part of the electromagnetic waves from being absorbed by the display screen 20. Therefore, the radiation efficiency of the antenna can be improved.

[0081] The conductor plate 130 covers the clearance area 121 on the connection board 120, and the other areas on the connection board 120 are conductors. The connection board 120 can also reflect electromagnetic waves. When the areas outside the clearance area 121 of the connection board 120 are insulating materials, the conductor plate 130 can also cover the areas outside the clearance area 121 of the connection board 120, thereby further improving the radiation efficiency of the antenna.

[0082] The rear cover 30 is connected to the middle frame assembly 10, and the rear cover 30 forms the rear shell of the electronic device. The material of the rear cover 30 can be an insulating material. Since the material of the rear cover 30 is an insulating material, the electromagnetic signal reflected by the conductor plate 130 can radiate outward through the rear cover 30. By way of example, the rear cover 30 can be a plastic rear cover 30, a glass rear cover 30, a ceramic rear cover 30, etc., and the embodiments of the present disclosure do not make specific limitations thereto.

[0083] The battery is disposed in the accommodation space inside the electronic device. The battery can be connected to the connection plate 120. For example, the battery is connected to the connection plate 120 by means of glue connection. The battery is connected to the power management circuit on the main board. For example, the battery and the main board can be connected by a flexible circuit board. A charging hole can be provided on one side of the frame 110 close to the battery, and a charging port is provided on the charging hole, and the charging port is connected to the battery.

[0084] The embodiments of the present disclosure also provide an electronic device, such as Figure 9 As shown, the electronic device includes: a middle frame assembly 10, a display screen 20, and a conductor plate 130. The middle frame assembly 10 includes a frame 110 and a connection plate 120. The frame 110 has at least one metal branch 111, and the metal branch 111 is used as an antenna radiator. The connection plate 120 is connected to the frame 110, and the frame 110 at least partially surrounds the connection plate 120. A clearance area 121 is provided on the connection plate 120, and the clearance area 121 is adjacent to the metal branch 111; the display screen 20 is connected to the middle frame; the conductor plate 130 is connected to the side of the display screen 20 facing the connection plate 120, and at least part of the projection area of the conductor plate 130 on the connection plate 120 coincides with the clearance area 121.

[0085] For the electronic device provided by the embodiments of the present disclosure, by providing the conductor plate 130 between the display screen 20 and the connection plate 120, and at least part of the projection of the conductor plate 130 on the connection plate 120 is located in the clearance area 121, the electromagnetic wave emitted by the metal branch 111 is reflected by the conductor plate 130, avoiding the problem of low antenna radiation efficiency caused by the display screen 20 absorbing too much electromagnetic wave, and thus the antenna radiation efficiency of the electronic device can be improved.

[0086] The electronic device provided by the embodiments of the present disclosure can be an electronic device with a wireless communication function such as a mobile phone, a tablet computer, an e-reader, a personal digital assistant, or a wearable device.

[0087] The following takes the electronic device as a mobile phone as an example to describe in detail the electronic device provided by the embodiments of the present disclosure:

[0088] The electronic device provided by the embodiments of the present disclosure may further include components such as a rear cover 30, a main board, and a battery. The display screen 20 and the rear cover 30 are respectively connected to the middle frame assembly 10. The display screen 20 forms the front shell of the electronic device, and the rear cover 30 forms the rear shell of the electronic device. The display screen 20, the middle frame assembly 10, and the rear cover 30 form an accommodation space, and components such as the main board and the battery are disposed in the accommodation space.

[0089] The display screen 20 may be a liquid crystal display screen 20, an OLED display screen 20, a miniLED display screen 20, or a microLED display screen 20. The display screen 20 is used to display images and texts. The display screen 20 may include conductor materials such as an electrode layer, a driving circuit layer, and an interlayer via. Therefore, the electromagnetic waves emitted by the antenna radiator towards the display screen 20 are absorbed by the conductor materials in the display screen 20. And due to the relatively complex distribution of the conductor materials in the display screen 20, the electromagnetic waves reflected by the display screen 20 are less, resulting in a lower radiation efficiency of the antenna.

[0090] A conductor plate 130 is disposed on the back surface of the display screen 20, and at least part of the electromagnetic waves emitted by the antenna radiator to the back surface of the display screen 20 are reflected by the conductor plate 130. At this time, the connecting plate 120 and the rear cover 30 may be made of an insulating material, and the insulating connecting plate 120 and the rear cover 30 may allow more reflected electromagnetic waves to pass through and be emitted outward.

[0091] The conductor plate 130 is disposed on the display screen 20, and the conductor plate 130 is located in the projection area of the clearance area 121 on the display screen 20. Or the area of the conductor plate 130 is larger than the projection area of the clearance area 121 on the display screen 20, and the conductor plate 130 covers the projection area of the clearance area 121 on the display screen 20.

[0092] To ensure the insulation performance between the display screen 20 and the conductor plate 130, the electronic device may further include an insulating layer, and the insulating layer is disposed between the conductor plate 130 and the display screen 20. The insulating layer between the display screen 20 and the conductor plate 130 may be a rubber layer or an insulating glue layer, etc.

[0093] In some embodiments, one side of the display screen 20 close to the connecting plate 120 is a substrate, and the substrate is made of an insulating material. At this time, the substrate may serve as the insulating layer, and there is no need to provide a special insulating layer between the display screen 20 and the conductor plate 130.

[0094] The conductor plate 130 may be embedded in the display screen 20. For example, grooves may be formed on the substrate of the display screen 20 by etching or the like, and the conductor plate 130 is disposed in the grooves on the substrate. Or the conductor plate 130 may be a thin film structure, and the conductor plate 130 may be formed on the substrate by electroplating, deposition, or printing.

[0095] The main board can be connected to the connection board 120, and devices such as a processor (CPU, GPU, MCU, etc.), a power management circuit, a storage device, various sensors, and a radio frequency module are provided on the main board. The main board can be connected to the connection board 120 by connection methods such as glue connection or screw connection. A grounding portion can also be provided on the main board, and the grounding portion on the main board can be connected to the grounding portion on the connection board 120.

[0096] The power management circuit is connected to the battery, and the power signal output by the battery is transmitted to the power management circuit. The power management circuit is used to process the power signal and transmit the processed power signal to each electrical appliance device.

[0097] The radio frequency module is used to receive and transmit radio frequency signals. The radio frequency module can be connected to the power management circuit to obtain a power signal from the power management circuit. The radio frequency module is also connected to the metal stub 111 on the frame 110. The radio frequency module provides an excitation signal to the metal stub 111, and the metal stub 111 emits electromagnetic waves in response to the excitation signal. An amplification circuit or a tuning circuit, etc., can also be connected to the radio frequency module and the metal stub 111.

[0098] The rear cover 30 is connected to the middle frame assembly 10, and the rear cover 30 forms the rear shell of the electronic device. The material of the rear cover 30 can be an insulating material. Since the material of the rear cover 30 is an insulating material, the electromagnetic signal reflected by the conductor plate 130 can radiate outward through the rear cover 30. By way of example, the rear cover 30 can be a plastic rear cover 30, a glass rear cover 30, or a ceramic rear cover 30, etc. The embodiments of the present disclosure do not make specific limitations thereto.

[0099] The battery is disposed in the accommodation space inside the electronic device. The battery can be connected to the connection board 120. For example, the battery is connected to the connection board 120 by means of glue connection. The battery is connected to the power management circuit on the main board. For example, the battery and the main board can be connected by a flexible circuit board. A charging hole can be provided on one side of the frame 110 close to the battery, and a charging port is provided on the charging hole, and the charging port is connected to the battery.

[0100] In the electronic device provided by the embodiments of the present disclosure, by providing the conductor plate 130 between the display screen 20 and the connection board 120, and at least a part of the projection of the conductor plate 130 on the connection board 120 is located in the clearance area 121, the electromagnetic waves emitted by the metal stub 111 are reflected by the conductor plate 130, avoiding the problem of low antenna radiation efficiency caused by the display screen 20 absorbing too much electromagnetic waves, and thus the antenna radiation efficiency of the electronic device can be improved.

[0101] Other embodiments of the present disclosure will be readily apparent to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and examples are only to be considered as exemplary, and the true scope and spirit of the present disclosure are pointed out by the appended claims.

Claims

1. A middle frame component, characterized in that, The middle frame assembly includes: A frame, the frame having one or more metal stubs, the metal stubs serving as antenna radiators; A connection plate, the connection plate being connected to the frame, and the frame at least partially surrounding the connection plate, a clearance area being provided on the connection plate, the clearance area corresponding to the metal stubs; A conductor plate, the conductor plate being at least partially disposed in the clearance area, and a gap existing between the conductor plate and the metal stubs; The conductor plate includes: a metal sheet, the metal sheet being disposed in the clearance area, and the gap between the metal sheet and the metal stubs being less than a preset threshold; The connection plate is of a hollowed-out structure in the clearance area, and the middle frame assembly further includes: An insulating filling plate, the insulating filling plate filling the clearance area, the metal sheet being connected to the insulating filling plate.

2. The middle frame assembly according to claim 1, wherein, The connection plate is provided with an insulating portion in the clearance area, the metal sheet being connected to the insulating portion.

3. The middle frame assembly according to claim 1, wherein The width of the gap between the conductor plate and the metal stubs is from 0.5 millimeters to 2 millimeters.

4. The middle frame component according to claim 1, characterized in that The side of the conductor plate close to the metal stubs and the side of the metal stubs close to the conductor plate are parallel.

5. The middle frame assembly according to any one of claims 1-4, characterized in that, The operating frequency band of the antenna radiator is N77 or N78.

6. An electronic device, characterized in that, The electronic device includes the middle frame assembly according to any one of claims 1-5.

7. An electronic device, characterized in that, The electronic device includes: A middle frame assembly, the middle frame assembly including a frame and a connection plate, the frame having at least one metal stub, the metal stub serving as an antenna radiator, the connection plate being connected to the frame, and the frame at least partially surrounding the connection plate, a clearance area being provided on the connection plate, the clearance area being adjacent to the metal stubs; A display screen, the display screen being connected to the middle frame; A conductor plate, the conductor plate being connected to the side of the display screen facing the connection plate, and the projection area of the conductor plate on the connection plate at least partially overlapping the clearance area; The middle frame assembly further includes a conductor plate, the conductor plate including: a metal sheet, the metal sheet being disposed in the clearance area, and the gap between the metal sheet and the metal stubs being less than a preset threshold; The connection plate is of a hollowed-out structure in the clearance area, and the middle frame assembly further includes: An insulating filling plate, the insulating filling plate filling the clearance area, the metal sheet being connected to the insulating filling plate.

8. The electronic device according to claim 7, wherein The electronic device further includes an insulating layer, the insulating layer being disposed between the conductor plate and the display screen.

Images