Middle frame assembly and electronic equipment

Abstract

The embodiment of the invention provides a middle frame assembly and electronic equipment. The middle frame assembly comprises a middle frame and a grounding structure, and the middle frame is provided with an accommodating space; the middle frame comprises an antenna and a grounding part; the antenna and the grounding part are connected through a connecting rib structure; the grounding structure is fixedly arranged on the grounding part and is positioned in the accommodating space; the grounding structure is provided with a first connecting end and a second connecting end; the first connecting end is used for being connected with a first grounding part on a front shell of the electronic equipment, and the second connecting end is used for being connected with a second grounding part on a display screen of the electronic equipment. Compared with a mode that the front shell and the display screen are respectively provided with grounding structures for grounding, the middle frame assembly provided by the embodiment of the invention can realize connection between the first grounding part of the front shell and the grounding part of the middle frame and connection between the second grounding part of the display screen and the grounding part of the middle frame only through the grounding structures, so that more space is saved; while the antenna performance is ensured, the space occupied by the grounding structure of the front shell and the display screen is reduced.

Description

Technical Field

[0001] This application relates to the field of electronic product technology, and in particular to a mid-frame assembly and an electronic device. Background Technology

[0002] Mobile phones and other electronic devices communicate via antennas. In related technologies, the metal frame of the electronic device's mid-frame is typically used as the antenna, and a grounding structure is installed near the connecting rib between the antenna and the bottom plate of the mid-frame. The front shell (A-shell) and the display screen of the electronic device are grounded separately to ensure antenna performance.

[0003] With the trend towards thinner and lighter designs and an increasing number of internal components, the internal space of electronic devices is becoming increasingly limited. Grounding structures in related technologies occupy a significant amount of space, and removing them would negatively impact antenna performance. Therefore, how to reduce the space occupied by grounding structures while ensuring antenna performance is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this application is to provide a mid-frame assembly and electronic device that reduces the space occupied by the grounding structure of the front shell and display screen while ensuring antenna performance. The specific technical solution is as follows:

[0005] An embodiment of the first aspect of this application provides a mid-frame assembly for use in an electronic device; the mid-frame assembly includes a mid-frame and a grounding structure, the mid-frame having a receiving space; the mid-frame includes an antenna and a grounding portion; the antenna and the grounding portion are connected by a connecting rib structure; the grounding structure is fixedly disposed on the grounding portion and located within the receiving space; the grounding structure has a first connection end and a second connection end; the first connection end is used to connect to a first grounding portion on the front shell of the electronic device, and the second connection end is used to connect to a second grounding portion on the display screen of the electronic device.

[0006] As can be seen from the above, the mid-frame assembly of this application embodiment includes a mid-frame and a grounding structure. The mid-frame has an accommodating space; the mid-frame includes an antenna and a grounding portion, which are connected by a connecting rib structure; the grounding structure is fixedly disposed within the grounding portion, located within the accommodating space, i.e., the grounding structure is located near the connecting rib structure, and the connection point between the grounding structure and the grounding portion is adjacent to the connecting rib structure. This placement is beneficial for ensuring antenna performance; the grounding structure has a first connecting end and a second connecting end; the first connecting end is used to connect to a first grounding portion on the front shell of the electronic device, and the second connecting end is used to connect to a second grounding portion on the display screen of the electronic device. Compared to the method of separately grounding the front shell and the display screen, the mid-frame assembly of this application embodiment can achieve the connection between the first grounding portion of the front shell and the grounding portion of the mid-frame, and the connection between the second grounding portion of the display screen and the grounding portion of the mid-frame, using only the grounding structure, which saves more space and reduces the space occupied by the grounding structures of the front shell and the display screen while ensuring antenna performance.

[0007] In some embodiments of this application, the grounding structure includes:

[0008] The main body is fixedly installed on the grounding portion of the middle frame;

[0009] The first elastic part has one end connected to the main body part and the other end extending away from the main body part, forming the first connecting end;

[0010] The second elastic part has one end connected to the main body part and the other end extending away from the main body part, forming the second connecting end.

[0011] As can be seen from the above, the main body is connected to the grounding part of the middle frame, the first elastic part extends from the main body to the first grounding part of the front shell, and the second elastic part extends from the main body to the second grounding part on the display screen. The setting method and extension direction of the two elastic parts can be adjusted, which is highly flexible.

[0012] In some embodiments of this application, the grounding structure is a spring contact; the spring contact includes:

[0013] The spring clip body serves as the main body portion;

[0014] The first elastic arm, as the first elastic part, extends from the spring body in a direction away from the spring body and bends in a direction away from the grounding part;

[0015] The second elastic arm, as the second elastic part, extends from the spring body in a direction away from the spring body and bends in a direction away from the grounding part; the orthographic projection of the second elastic arm on the grounding part is at a preset angle to the orthographic projection of the first elastic arm on the grounding part.

[0016] As can be seen from the above, the grounding structure of the first embodiment of this application is a double-headed spring contact grounding scheme. The spring contact itself has a certain elasticity, so that the connection between the first elastic arm and the front shell is elastic abutment, and the connection between the second elastic arm and the display screen is also elastic abutment. The first connection end and the second connection end can move in the thickness direction of the electronic device, which helps to protect the front shell and the display screen while ensuring the connection effect. The elastic abutment connection method does not have high requirements for processing precision. Even if there is a certain error, it will not affect the connection effect, which helps to improve production efficiency.

[0017] In some embodiments of this application, the grounding structure includes:

[0018] A spring clip, comprising a spring clip body and a first elastic arm; the spring clip body serves as the main body portion; the first elastic arm serves as the first elastic portion, extending from the spring clip body in a direction away from the spring clip body and bending in a direction away from the grounding portion;

[0019] An elastic conductive filler, serving as the second elastic part, is fixedly disposed on the side of the spring body away from the grounded portion of the middle frame.

[0020] As can be seen from the above, both the spring and the elastic conductive filler are elastic, making the connection between the first elastic arm and the front shell elastic abutment, and the connection between the second elastic arm and the display screen also elastic abutment. This ensures a good connection while protecting the front shell and the display screen. The elastic abutment connection method does not require high processing precision; even with some errors, the connection effect will not be affected, thus improving production efficiency. The elastic conductive filler only needs to be conductive and able to fill the gap between the display screen and the spring body; the installation method is simple, and a wide range of materials can be selected.

[0021] In some embodiments of this application, the middle frame includes: a frame body and a base plate;

[0022] The frame is disposed at the edge of the base plate, and the two are connected to each other to jointly enclose the receiving space; the frame includes the antenna;

[0023] The base plate includes the grounding portion and the connecting rib structure; the connecting rib structure extends from the grounding portion toward the antenna and is connected to the antenna.

[0024] As can be seen from the above, this arrangement facilitates the division of structures such as antennas and grounding parts.

[0025] In some embodiments of this application, the orthographic projection of the first elastic portion on the base plate overlaps with the connecting rib structure.

[0026] The maximum distance between the connecting rib structure on the side away from the antenna in the first direction and the main body on the side away from the antenna in the first direction is less than 10mm;

[0027] The first direction is the length direction or the width direction of the middle frame.

[0028] As can be seen from the above, the above setup method limits the location of the grounding structure, which helps to ensure antenna performance.

[0029] In some embodiments of this application, the minimum distance between the main body and the frame is greater than 0.3 mm.

[0030] As can be seen from the above, meeting the above numerical range helps to ensure the insulation between the grounding part and the middle frame, and improves the working reliability of electronic equipment.

[0031] In some embodiments of this application, the elastic conductive filler is conductive foam or conductive silver paste.

[0032] As can be seen from the above, both conductive foam and conductive silver paste have a certain degree of elasticity. Filling the space between the spring body and the display screen ensures a reliable connection between the two while also protecting the display screen. The conductive silver paste has a certain degree of adhesion, which can provide some fixation.

[0033] In some embodiments of this application, the thickness of the spring sheet is 0.1mm-0.2mm;

[0034] The spring is made of metal.

[0035] As can be seen from the above, meeting the above numerical range helps to ensure the good grounding performance of the grounding structure.

[0036] In some embodiments of this application, the end of the first elastic arm away from the main body is provided with a hemispherical protrusion structure; the hemispherical protrusion structure of the first elastic arm is used to abut against the front shell;

[0037] The second elastic arm has a hemispherical protrusion at one end away from the main body; the hemispherical protrusion of the second elastic arm is used to abut against the display screen.

[0038] As can be seen from the above, the hemispherical protrusion structure provides abutment, resulting in higher positional accuracy at the connection point and improving connection reliability.

[0039] In some embodiments of this application, the preset angle is 90°.

[0040] As can be seen from the above, with this configuration, the spring can be rotated to fit different settings, making it more versatile.

[0041] In some embodiments of this application, the grounding structure is located at the corner of the middle frame.

[0042] As can be seen from the above, the connecting rib structure is usually set at the corner of the middle frame. The first and second elastic parts extend from the main body, and the direction of extension can be adjusted to adapt to the structure at the corner. This arrangement saves more space. The middle frame as a whole can be rectangular or rounded rectangle, and the grounding structure is set at at least one of the four corners of the middle frame.

[0043] In some embodiments of this application, the middle frame includes a metal portion and a non-metal portion that are connected together;

[0044] The metal portion includes the antenna, the grounding portion, and the connecting rib structure;

[0045] There is a hollow area between the grounding part and the antenna;

[0046] At least a portion of the non-metallic portion is filled within the hollowed-out area.

[0047] As can be seen from the above, this configuration provides insulation for the non-metallic parts, which helps improve the antenna's performance.

[0048] An embodiment of the second aspect of this application provides an electronic device including a display screen, a front housing, and a mid-frame assembly according to any embodiment of the first aspect;

[0049] The display screen is disposed on the side of the grounding structure away from the middle frame and is connected to the middle frame;

[0050] The front shell is disposed on the edge of the middle frame, and the two are connected; at least part of the front shell is located on the side of the display screen away from the middle frame, and covers the edge of the display screen;

[0051] The grounding structure of the mid-frame assembly is partially located between the display screen and the mid-frame; the first connection end of the grounding structure is connected to the first grounding part on the front shell, and the second connection end is connected to the second grounding part on the display screen.

[0052] As can be seen from the above, the electronic device of this application embodiment includes a mid-frame assembly, a front shell, and a display screen. The mid-frame assembly includes a mid-frame and a grounding structure. The mid-frame has an accommodating space; the mid-frame includes an antenna and a grounding portion, which are connected by a connecting rib structure; the grounding structure is fixedly disposed on the grounding portion within the accommodating space, i.e., the grounding structure is disposed near the connecting rib structure, and the connection point between the grounding structure and the grounding portion is adjacent to the connecting rib structure. This placement is beneficial for ensuring antenna performance; the grounding structure has a first connecting end and a second connecting end; the first connecting end is used to connect to a first grounding portion on the front shell of the electronic device, and the second connecting end is used to connect to a second grounding portion on the display screen of the electronic device. Compared to the method of separately grounding the front shell and the display screen, the mid-frame assembly of this application embodiment can achieve the connection between the first grounding portion of the front shell and the grounding portion of the mid-frame, and the connection between the second grounding portion of the display screen and the grounding portion of the mid-frame, solely through the grounding structure. This saves more space, achieving a reduction in the space occupied by the grounding structures of the front shell and the display screen while ensuring antenna performance, and also facilitating the miniaturization design of the electronic device.

[0053] In some embodiments of this application, the front shell is made of non-metallic material; a metal layer of a predetermined area is covered on the outer surface of the front shell at the position corresponding to the first connection end of the grounding structure, and the metal layer forms the first grounding portion;

[0054] The display screen includes: a light-emitting functional layer, a supporting substrate, and a bamboo book;

[0055] The light-emitting functional layer includes a first part, a bent part, and a second part that are connected in sequence; the second part is located on the non-display side of the first part.

[0056] The supporting substrate is located between the first part and the second part and is used to support the second part;

[0057] The bamboo book is located between the supporting substrate and the first part, and is used to support the first part; the bamboo book is provided with a second grounding part.

[0058] As can be seen from the above, the first connection end of the grounding structure is connected to the metal layer of the front shell to achieve grounding of the front shell, and the second connection end is connected to the bamboo book to achieve grounding of the display screen.

[0059] In some embodiments of this application, the orthographic projection of the second part on the bamboo book is spaced apart from the orthographic projection of the grounding structure on the bamboo book.

[0060] As can be seen from the above, the surface of the second part furthest from the first part is the large COP surface, on which chips can be placed. The chips are surrounded by IC adhesive, which protects the chips. In order to ensure the reliability of the display screen, the large COP surface cannot be used for grounding. The orthographic projection of the second part on the bamboo book is spaced apart from the orthographic projection of the grounding structure on the bamboo book. The second part can avoid the grounding structure, which facilitates the connection between the grounding structure and the bamboo book, and also helps to reduce the thickness of electronic devices.

[0061] In some embodiments of this application, the number of middle frames is two, including a first middle frame and a second middle frame;

[0062] The electronic device also includes a pivot mechanism; the two sides of the pivot mechanism are rotatably connected to the first middle frame and the second middle frame respectively, so as to drive the first middle frame and the second middle frame to rotate towards each other or away from each other around the pivot mechanism, so as to switch the electronic device between a folded state and a flattened state.

[0063] Both the first and second middle frames are provided with magnetic structures; the magnetic structures are located within the accommodating space.

[0064] When the electronic device is in the folded state, the magnetic structures of the first middle frame and the magnetic structures of the second middle frame attract each other.

[0065] As can be seen from the above, when the electronic device is in a folded state, the hinge mechanism is folded, and the first and second middle frames are stacked. At this time, the magnetic structures of the first and second middle frames attract each other, which can ensure that the electronic device remains in a folded state without external force and will not automatically flatten.

[0066] In some embodiments of this application, the number of magnetic structures is four, which are respectively disposed at two corners of the first middle frame away from the rotating shaft mechanism and at two corners of the second middle frame away from the rotating shaft mechanism;

[0067] The magnetic structure and the grounding structure are spaced apart.

[0068] As can be seen from the above, the magnetic structure is located at the corner of the middle frame away from the rotating shaft mechanism, and there are two magnetic attraction points, resulting in higher reliability. The magnetic structure and the grounding structure are spaced apart to prevent short circuits. Attached Figure Description

[0069] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0070] Figure 1 This is a schematic diagram of the structure of an electronic device according to the first embodiment of this application (flattened state);

[0071] Figure 2 This is a schematic diagram of the structure of an electronic device according to the first embodiment of this application (folded state);

[0072] Figure 3 This is an exploded structural diagram of an electronic device according to a first embodiment of this application from a first-view perspective.

[0073] Figure 4 This is an exploded structural diagram of the electronic device according to the first embodiment of this application from a second perspective.

[0074] Figure 5 for Figure 1 A magnified view of a portion of point M;

[0075] Figure 6 This is a diagram showing the connection relationship between the magnetic structure and the middle frame in the embodiments of this application;

[0076] Figure 7 This is a diagram showing the positional relationship between the magnetic structure and the grounding structure in the embodiments of this application;

[0077] Figure 8 This is a partial schematic diagram of the middle frame in the first embodiment of this application;

[0078] Figure 9 This is a diagram showing the connection relationship between the grounding structure and the middle frame in the first embodiment of this application;

[0079] Figure 10 for Figure 1 AA section view;

[0080] Figure 11 for Figure 1 BB section view;

[0081] Figure 12 This is a schematic diagram of the grounding structure from a first perspective in the first embodiment of this application;

[0082] Figure 13 This is a schematic diagram of the grounding structure from a second perspective in the first embodiment of this application;

[0083] Figure 14 This is a partial schematic diagram of the display screen in an embodiment of this application;

[0084] Figure 15 This is a diagram showing the connection relationship between the display screen, front cover, and grounding structure in the first embodiment of this application.

[0085] Figure 16for Figure 15 A magnified view of N points;

[0086] Figure 17 This is a schematic diagram of the structure of an electronic device according to the second embodiment of this application (in a flattened state);

[0087] Figure 18 This is an exploded view of the electronic device according to the second embodiment of this application.

[0088] Figure 19 This is an exploded view of the electronic device according to the second embodiment of this application.

[0089] Figure 20 for Figure 17 CC section view;

[0090] Figure 21 This is an exploded view of the grounding structure in the embodiments of this application.

[0091] Figure 22 This is a second-view exploded structural diagram of the grounding structure in an embodiment of this application;

[0092] Figure 23 This is a partial schematic diagram of the middle frame in the first embodiment of this application;

[0093] Figure 24 This is a diagram showing the connection relationship between the grounding structure and the middle frame in the first embodiment of this application;

[0094] Figure 25 This is a diagram showing the positional relationship between the magnetic structure and the grounding structure in the embodiments of this application;

[0095] Figure 26 This is a diagram showing the connection relationship between the display screen, front cover, and grounding structure in the second embodiment of this application;

[0096] Figure 27 for Figure 26 A magnified view of part O.

[0097] Explanation of reference numerals in the attached figures:

[0098] Mid-frame assembly 10; front shell 20; metal layer 21; first grounding portion 20a; display screen 30; light-emitting functional layer 31; first part 311; bending portion 312; second part 313; supporting substrate 32; bamboo book 33; cover plate 34; optical adhesive 35; supporting steel sheet 36; second grounding portion 30a; pivot mechanism 40; magnetic structure 50; circuit board 60; chip 70; IC dispensing 80; back cover 90; first sub-shell 91; second sub-shell 92;

[0099] Mid-frame 100; First mid-frame 100a; Second mid-frame 100b; Metal part 101; Non-metal part 102; Frame 110; Antenna 111; Base plate 120; Grounding part 121; Connecting rib structure 122; Hollowed-out area 123; Grounding structure 200; First connecting end 201; Second connecting end 202; Hemispherical protrusion structure 203; Main body 210; Spring body 211; First elastic part 220; First elastic arm 221; Second elastic part 230; Second elastic arm 231; Elastic conductive filler 232. Detailed Implementation

[0100] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0101] To facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with essentially the same function and effect. For example, "first swing arm" and "second swing arm" are used to distinguish different swing arms, but do not limit their order. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or position, and that "first" and "second" do not necessarily imply that they are different.

[0102] It should be noted that, in this application, the words "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of words such as "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0103] Mobile phones and other electronic devices communicate via antennas. In related technologies, the metal frame of the electronic device's mid-frame is typically used as the antenna, and a grounding structure is placed near the connecting rib between the antenna and the bottom plate of the mid-frame. The front shell (A-shell) and the display screen of the electronic device are grounded separately to ensure antenna performance. However, with the trend towards thinner and lighter designs and the increasing number of internal components in electronic devices, internal space is becoming increasingly limited. The grounding structure in related technologies occupies a significant amount of space, and removing it would affect antenna performance. Therefore, how to reduce the space occupied by the grounding structure while ensuring antenna performance is a problem that urgently needs to be solved by those skilled in the art. To address the above technical problems, this application proposes a mid-frame assembly and an electronic device.

[0104] The electronic devices provided in this application embodiment can be mobile phones, tablets, wearable devices, in-vehicle devices, augmented reality (AR) / virtual reality (VR) devices, laptops, ultra-mobile personal computers (UMPCs), netbooks, personal digital assistants (PDAs), and other terminal products. This application embodiment does not limit the specific type of electronic device.

[0105] For ease of explanation, the following embodiments use a mobile phone as an example to illustrate the structure of the electronic device.

[0106] like Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the structure of the electronic device according to the first embodiment of this application (in a flattened state). Figure 2 This is a schematic diagram of the structure of the electronic device according to the first embodiment of this application (folded state). Figure 1 In this coordinate system, the X direction (first direction) represents the length of the electronic device, the Y direction (second direction) represents the width of the electronic device, and the Z direction represents the thickness of the electronic device. It is understood that the coordinate system of the electronic device can be flexibly set according to actual needs. This application only provides one example and should not be considered a specific limitation imposed on this application.

[0107] like Figures 1 to 4 As shown, Figure 3 This is an exploded view of the electronic device according to the first embodiment of this application. Figure 4 This is an exploded structural diagram of an electronic device according to a first embodiment of this application from a second perspective. The embodiment proposes an electronic device including a display screen 30, a front shell 20, and a mid-frame assembly 10. The display screen 30 is disposed on the side of the grounding structure 200 away from the mid-frame 100 and connected to the mid-frame 100. The front shell 20 is disposed on the edge of the mid-frame 100, and the two are connected. At least a portion of the front shell 20 is located on the side of the display screen 30 away from the mid-frame 100 and covers the edge of the display screen 30. The grounding structure 200 of the mid-frame assembly 10 is partially located between the display screen 30 and the mid-frame 100. A first connection end 201 of the grounding structure 200 is connected to a first grounding portion 20a on the front shell 20, and a second connection end 202 is connected to a second grounding portion 30a on the display screen 30. The structure of the grounding structure 200 will be described in detail below.

[0108] The electronic device may also include a back cover 90, a circuit board 60, and a battery (not shown). The display screen 30, the mid-frame 100, and the back cover 90 enclose a receiving space, within which the circuit board 60 and the battery are housed.

[0109] The material of the back cover 90 includes, but is not limited to, metal, ceramic, plastic and glass, and this application embodiment does not limit this. When there are two middle frames 100, there can also be two back covers 90, namely a first sub-shell 91 and a second sub-shell 92, which are set one-to-one with the two middle frames 100.

[0110] The display screen 30 can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (MLED) display screen, a micro organic light-emitting diode (MOLED) display screen, a quantum dot light-emitting diode (QLED) display screen, or a liquid crystal display (LCD), etc. The display screen 30 can also have touch functionality, meaning it can be a touchscreen.

[0111] The circuit board 60 can be fixed to the middle frame 100 by means of threaded connection, adhesive, snap-fit, or welding. The circuit board 60 can be a rigid circuit board, a flexible circuit board, or a circuit board with a flexible and rigid structure; this application does not limit this. Figure 3 In the embodiment shown, the circuit board 60 is an inner screen flexible circuit board, which is connected to the display screen 30.

[0112] The battery provides power to the circuit board 60 and other electronic components. The battery may include, but is not limited to, nickel-cadmium batteries, nickel-metal hydride batteries, lithium batteries, or other types of batteries containing bare cells. Furthermore, in the electronic device provided in this application embodiment, the number of batteries may be one or more. The specific number and arrangement of batteries can be set according to actual needs, and this application embodiment does not limit this.

[0113] In a first embodiment of this application, the electronic device may be a foldable electronic device, such as... Figure 5 As shown, Figure 5 for Figure 1 The enlarged schematic diagram at point M shows that, during the folding or flattening process of the foldable electronic device, the display screen 30 and the middle frame 100 will shift in the Y direction (first direction). The front cover 20 can cover only the two edges of the display screen 30 extending along the X direction (first direction) to block the shift.

[0114] like Figure 6 As shown, Figure 6 This is a diagram showing the connection relationship between the magnetic structure 50 and the middle frame 100 in an embodiment of this application. In the first embodiment of this application, there are two middle frames 100, including a first middle frame 100a and a second middle frame 100b. The electronic device also includes a pivot mechanism 40, which extends along the X direction. The two sides of the pivot mechanism 40 are rotatably connected to the first middle frame 100a and the second middle frame 100b, respectively, so as to drive the first middle frame 100a and the second middle frame 100b to rotate towards each other or away from each other around the pivot mechanism 40, so as to switch the electronic device between a folded state and a flattened state. Magnetic structures 50 are provided on both the first middle frame 100a and the second middle frame 100b. The magnetic structures 50 are located within the accommodating space. When the electronic device is in a folded state (refer to reference), Figure 2 The magnetic structure 50 of the first middle frame 100a and the magnetic structure 50 of the second middle frame 100b attract each other.

[0115] When the electronic device is in a flattened state (such as...) Figure 6 As shown), the first middle frame 100a, the pivot mechanism 40, and the second middle frame 100b are flattened; when the electronic device is in a folded state (as shown), Figure 2 As shown, the pivot mechanism 40 is folded, and the first middle frame 100a and the second middle frame 100b are stacked. At this time, the magnetic structure 50 of the first middle frame 100a and the magnetic structure 50 of the second middle frame 100b attract each other, which can ensure that the electronic device remains folded without external force and will not automatically flatten.

[0116] like Figure 6 and Figure 7 As shown, Figure 7This diagram illustrates the positional relationship between the magnetic structure 50 and the grounding structure 200 in an embodiment of this application. In the first embodiment, the number of magnetic structures 50 can be four, respectively located at the two corners of the first middle frame 100a away from the rotating shaft mechanism 40, and at the two corners of the second middle frame 100b away from the rotating shaft mechanism 40; the magnetic structures 50 and the grounding structure 200 are spaced apart. The magnetic structures 50 are located at the corners of the middle frame 100 away from the rotating shaft mechanism 40, providing two magnetic attraction points for higher reliability. When the electronic device is rectangular or rounded, the four magnetic structures 50 can be located at the four corners of the electronic device; the two magnetic structures 50 on the second middle frame 100b can be symmetrically arranged with the two magnetic structures 50 on the first middle frame 100a. The magnetic structures 50 and the grounding structure 200 are spaced apart to prevent short circuits.

[0117] Optionally, the magnetic structure 50 can be a magnet.

[0118] like Figure 8 and Figure 9 As shown, Figure 8 This is a partial schematic diagram of the middle frame 100 in the first embodiment of this application. Figure 9 This diagram illustrates the connection relationship between the grounding structure 200 and the middle frame 100 in the first embodiment of this application. In this first embodiment, the middle frame 100 includes a frame body 110 and a base plate 120; the frame body 110 is disposed at the edge of the base plate 120, and the two are connected to each other to enclose an accommodating space; the frame body 110 includes an antenna 111; the base plate 120 includes a grounding portion 121 and a connecting rib structure 122 (e.g., ...). Figure 8 (The area outlined by the dashed box); the connecting rib structure 122 extends from the grounding part 121 to the antenna 111 and connects to the antenna 111. This arrangement facilitates the division of structures such as the antenna 111 and the grounding part 121.

[0119] like Figures 7 to 9 As shown, in the first embodiment of this application, the middle frame 100 includes a metal portion 101 and a non-metal portion 102 connected together; the metal portion 101 includes an antenna 111, a ground portion 121, and a connecting rib structure 122; a hollow area 123 is provided between the ground portion 121 and the antenna 111; at least a portion of the non-metal portion 102 is filled within the hollow area 123. This arrangement provides insulation for the non-metal portion 102, which is beneficial for improving the performance of the antenna 111. Optionally, the non-metal portion 102 can be made of plastic.

[0120] The structure of the middle frame component 10 in the embodiments of this application will be described in detail below.

[0121] like Figures 9 to 13 As shown, Figure 10 for Figure 1 AA section view, Figure 11 for Figure 1 BB sectional view, Figure 12 This is a schematic diagram of the grounding structure 200 from a first-view perspective in the first embodiment of this application. Figure 13 This is a schematic diagram of the grounding structure 200 from a second perspective in the first embodiment of this application. This application proposes a mid-frame assembly 10 for use in electronic devices. The mid-frame assembly 10 includes a mid-frame 100 and a grounding structure 200. Specifically, the mid-frame 100 has a receiving space; the mid-frame 100 includes an antenna 111 and a grounding portion 121; the antenna 111 and the grounding portion 121 are connected by a connecting rib structure 122; the grounding structure 200 is fixedly disposed in the grounding portion 121 and located within the receiving space; the grounding structure 200 has a first connecting end 201 and a second connecting end 202; the first connecting end 201 is used to connect to a first grounding portion 20a on the front shell 20 of the electronic device, and the second connecting end 202 is used to connect to a second grounding portion 30a on the display screen 30 of the electronic device.

[0122] The mid-frame assembly 10 of this application embodiment includes a mid-frame 100 and a grounding structure 200. The mid-frame 100 has an accommodating space; the mid-frame 100 includes an antenna 111 and a grounding portion 121, which are connected by a connecting rib structure 122; the grounding structure 200 is fixedly disposed on the grounding portion 121 within the accommodating space, i.e., the grounding structure 200 is located near the connecting rib structure 122, and the connection point between the grounding structure 200 and the grounding portion 121 is adjacent to the connecting rib structure 122. This placement helps ensure the performance of the antenna 111; the grounding structure 200 has a first connecting end 201 and a second connecting end 202; the first connecting end 201 is used to connect to a first grounding portion 20a on the front shell 20 of the electronic device, and the second connecting end 202 is used to connect to a second grounding portion 30a on the display screen 30 of the electronic device. Compared to the method of grounding the front shell 20 and the display screen 30 by setting ground structures 200 respectively, the middle frame assembly 10 of this application embodiment can realize the connection between the first ground part 20a of the front shell 20 and the ground part 121 of the middle frame 100, and the connection between the second ground part 30a of the display screen 30 and the ground part 121 of the middle frame 100 by ground structure 200 alone. This saves more space and reduces the space occupied by the ground structure 200 of the front shell 20 and the display screen 30 while ensuring the performance of the antenna 111.

[0123] In the first embodiment of this application, as Figures 10 to 13As shown, the grounding structure 200 includes a main body 210, a first elastic part 220, and a second elastic part 230. The main body 210 is fixedly disposed on the grounding portion 121 of the middle frame 100. The first elastic part 220 has one end connected to the main body 210 and the other end extending away from the main body 210, forming a first connection end 201. The second elastic part 230 has one end connected to the main body 210 and the other end extending away from the main body 210, forming a second connection end 202. That is, the main body 210 is connected to the grounding portion 121 of the middle frame 100, the first elastic part 220 extends from the main body 210 to the first grounding portion 20a of the front shell 20, and the second elastic part 230 extends from the main body 210 to the second grounding portion 30a on the display screen 30. The arrangement and extension direction of the two elastic parts can be adjusted, providing high flexibility.

[0124] Alternatively, the main body 210 can be fixed to the middle frame 100 by welding.

[0125] In the first embodiment of this application, as Figures 9 to 13 As shown, the grounding structure 200 is a spring sheet; the spring sheet includes a spring sheet body 211, a first elastic arm 221, and a second elastic arm 231; wherein, the spring sheet body 211 serves as the main body 210; the first elastic arm 221 serves as the first elastic part 220, extending from the spring sheet body 211 in a direction away from the spring sheet body 211, and bending in a direction away from the grounding part 121; the second elastic arm 231 serves as the second elastic part 230, extending from the spring sheet body 211 in a direction away from the spring sheet body 211, and bending in a direction away from the grounding part 121; the orthographic projection of the second elastic arm 231 on the grounding part 121 forms a preset angle with the orthographic projection of the first elastic arm 221 on the grounding part 121. The grounding structure 200 of the first embodiment of this application is a double-headed spring contact grounding scheme. The spring contact itself has a certain elasticity, so that the connection between the first elastic arm 221 and the front shell 20 is elastic abutment, and the connection between the second elastic arm 231 and the display screen 30 is also elastic abutment. The first connection end 201 and the second connection end 202 can move in the thickness direction of the electronic device. While ensuring the connection effect, it is beneficial to protect the front shell 20 and the display screen 30. The elastic abutment connection method does not have high requirements for processing precision. Even if there is a certain error, it will not affect the connection effect, which is beneficial to improving production efficiency.

[0126] In the first embodiment of this application, as Figure 9 As shown, the preset angle can be 90°. With this setting, the spring can be rotated to adapt to different settings, making it more versatile.

[0127] In the first embodiment of this application, as Figure 9As shown, the spring body 211 can be a rounded rectangle, which is easy to process, and the edges do not have sharp corners, which is convenient for installation and provides protection for the middle frame 100. In some other embodiments of this application, the spring body 211 can also be circular, elliptical, pentagonal, etc. The lengths of the first elastic arm 221 and the second elastic arm 231 can be the same or different, and this application does not limit this.

[0128] In the first embodiment of this application, as Figure 9 As shown, the orthographic projection of the first elastic part 220 on the base plate 120 overlaps with the connecting rib structure 122; the maximum distance 'a' between the side of the connecting rib structure 122 away from the antenna 111 in the first direction (X direction) and the side of the main body 210 away from the antenna 111 in the first direction is less than 10 mm. This arrangement limits the location of the grounding structure 200, which helps ensure the performance of the antenna 111.

[0129] In the first embodiment of this application, as Figure 9 As shown, the minimum distance between the main body 210 and the frame 110 is greater than 0.3 mm. Meeting this numerical range helps to ensure the insulation between the grounding part 121 and the middle frame 100, thereby improving the operational reliability of the electronic equipment.

[0130] In the first embodiment of this application, the thickness of the spring contact is 0.1mm-0.2mm; the material of the spring contact is metal. Meeting the above numerical range helps to ensure good grounding performance of the grounding structure 200. Optionally, the material of the spring contact can be copper alloy, tin bronze, zinc white copper, beryllium bronze, silicon manganese steel, etc., and this application does not limit it.

[0131] In the first embodiment of this application, as Figures 10 to 13 As shown, the first elastic arm 221 has a hemispherical protrusion 203 at the end away from the main body 210; the hemispherical protrusion 203 of the first elastic arm 221 is used to abut against the front shell 20; the second elastic arm 231 also has a hemispherical protrusion 203 at the end away from the main body 210; the hemispherical protrusion 203 of the second elastic arm 231 is used to abut against the display screen 30. The abutment using the hemispherical protrusion 203 results in higher positional accuracy at the connection point, which helps improve connection reliability.

[0132] like Figures 14 to 16 As shown, Figure 14 This is a partial schematic diagram of the display screen 30 in an embodiment of this application. Figure 15 This is a connection diagram of the display screen 30, front shell 20, and grounding structure 200 in the first embodiment of this application. Figure 16 for Figure 15The diagram shows a partial enlargement at point N. The front shell 20 is made of non-metallic material. A metal layer 21 of a predetermined area is covered on the outer surface of the front shell 20 at a position corresponding to the first connection end 201 of the grounding structure 200. This metal layer 21 forms the first grounding portion 20a. The display screen 30 includes a light-emitting functional layer 31, a support substrate 32, and a bamboo book 33. The light-emitting functional layer 31 includes a first portion 311, a bent portion 312, and a second portion 313 connected in sequence. The second portion 313 is located on the non-display side of the first portion 311. The support substrate 32 is located between the first portion 311 and the second portion 313, supporting the second portion 313. The bamboo book 33 is located between the support substrate 32 and the first portion 311, supporting the first portion 311. The bamboo book 33 has a second grounding portion 30a. The first connection end 201 of the grounding structure 200 is connected to the metal layer 21 of the front shell 20, grounding the front shell 20. The second connection end 202 is connected to the bamboo book 33, grounding the display screen 30.

[0133] like Figure 14 As shown, the display screen 30 may further include a cover plate 34 disposed on the side of the first part 311 away from the second part 313, the cover plate 34 and the first part 311 being bonded together by optical adhesive 35 (OCA); the first part 311 is connected to the circuit board 60; the circuit board 60 is connected to the side of the first part 311 near the second part 313 by adhesive backing; a supporting steel sheet 36 may be provided between the supporting substrate 32 and the bamboo book 33. Optionally, the bamboo book 33 is made of metal; the metal layer 21 may be silver, and is disposed on the front shell 20 by silver plating; the front shell 20 may be made of plastic.

[0134] like Figures 14 to 16 As shown, the orthographic projection of the second part 313 onto the bamboo book 33 is spaced apart from the orthographic projection of the grounding structure 200 onto the bamboo book 33. The surface of the second part 313 furthest from the first part 311 is a large COP surface, on which a chip 70 can be mounted. The chip 70 is surrounded by IC adhesive 80, which protects the chip 70. To ensure the reliability of the display screen 30, the large COP surface cannot be used for grounding. The orthographic projection of the second part 313 onto the bamboo book 33 is spaced apart from the orthographic projection of the grounding structure 200 onto the bamboo book 33. The second part 313 can avoid the grounding structure 200, facilitating the connection between the grounding structure 200 and the bamboo book 33, and also facilitating the thinning of electronic devices.

[0135] In the first embodiment of this application, as Figure 15 and Figure 16As shown, the grounding structure 200 is located at the corner of the middle frame 100. The connecting rib structure 122 is typically located at the corner of the middle frame 100. The first elastic portion 220 and the second elastic portion 230 extend from the main body 210, and their extension direction is adjustable to accommodate the corner structure, thus saving space. The middle frame 100 can be rectangular or rounded rectangular in shape, and the grounding structure 200 is located at at least one of the four corners of the middle frame 100.

[0136] like Figures 17 to 19 As shown, Figure 17 This is a schematic diagram of the structure of the electronic device according to the second embodiment of this application (in a flattened state). Figure 18 This is an exploded view of the electronic device according to the second embodiment of this application. Figure 19 This is an exploded view of the electronic device from a second perspective according to the second embodiment of this application. The difference between the mid-frame assembly 10 of the second embodiment of this application and the mid-frame 100 group of the first embodiment of this application is that the grounding structure 200 is different.

[0137] In the second embodiment of this application, such as Figures 20 to 22 As shown, Figure 20 for Figure 17 CC section view, Figure 21 This is an exploded view of the grounding structure 200 in the embodiments of this application. Figure 22 This is an exploded view of the grounding structure 200 in the embodiments of this application. The grounding structure 200 includes a spring and an elastic conductive filler 232. The spring includes a spring body 211 and a first elastic arm 221. The spring body 211 serves as the main body 210. The first elastic arm 221 serves as the first elastic part 220, extending from the spring body 211 in a direction away from the spring body 211 and bending in a direction away from the grounding part 121. The elastic conductive filler 232 serves as the second elastic part 230 and is fixedly disposed on the side of the spring body 211 away from the grounding part 121 of the middle frame 100. Both the spring and the elastic conductive filler 232 are elastic, making the connection between the first elastic arm 221 and the front shell 20 elastically abutted, and the connection between the second elastic arm 231 and the display screen 30 also elastically abutted. This ensures the connection effect while protecting the front shell 20 and the display screen 30. The elastic abutment connection method does not require high processing precision, and even if there is a certain error, it will not affect the connection effect, which helps to improve production efficiency. The elastic conductive filler 232 only needs to be conductive and able to fill the gap between the display screen 30 and the spring body 211. The setting method is simple and a wide range of materials can be selected.

[0138] Optionally, the elastic conductive filler 232 can be conductive foam or conductive silver paste. Both conductive foam and conductive silver paste have a certain degree of elasticity and are filled between the spring body 211 and the display screen 30, ensuring a reliable connection between the two while protecting the display screen 30. Conductive silver paste has a certain degree of adhesion and can play a certain role in fixing it.

[0139] Compared to the spring body 211 of the grounding structure 200 in the first embodiment of this application, the spring body 211 in the second embodiment of this application has a larger area and a larger fixing surface between it and the middle frame 100, making the fixing more reliable.

[0140] It is understood that the material of the spring sheet, the distance between the main body 210 and the middle frame 100, the setting range of the main body 210, and the structure of the middle frame 100 of the electronic device in the second embodiment of this application can all be the same as the setting method in the first embodiment of this application.

[0141] like Figure 23 As shown, Figure 23 This is a partial schematic diagram of the middle frame 100 in the first embodiment of this application, showing the positional relationship between the antenna 111, the connecting rib structure 122 and the grounding portion 121.

[0142] like Figure 24 and Figure 25 As shown, Figure 24 This is a diagram showing the connection relationship between the grounding structure 200 and the middle frame 100 in the first embodiment of this application. Figure 25 This is a diagram showing the positional relationship between the magnetic structure 50 and the grounding structure 200 in the embodiments of this application. The magnetic structure 50 and the grounding structure 200 are arranged at intervals. The orthographic projection of the elastic conductive filler 232 on the spring body 211 is located within the range of the spring body 211.

[0143] like Figure 26 and Figure 27 As shown, Figure 26 This is a connection diagram of the display screen 30, front shell 20, and grounding structure 200 in the second embodiment of this application. Figure 27 for Figure 26 The enlarged schematic diagram at point O shows that the grounding structure 200 and the magnetic structure 50 are located at the corner of the middle frame 100.

[0144] The electronic device of this application embodiment includes a mid-frame assembly 10, a front shell 20, and a display screen 30. The mid-frame assembly 10 includes a mid-frame 100 and a grounding structure 200. The mid-frame 100 has a receiving space; the mid-frame 100 includes an antenna 111 and a grounding portion 121, which are connected by a connecting rib structure 122; the grounding structure 200 is fixedly disposed in the grounding portion 121, located within the receiving space, i.e., the grounding structure 200 is disposed near the connecting rib structure 122, and the connection point between the grounding structure 200 and the grounding portion 121 is adjacent to the connecting rib structure 122. This placement is beneficial for ensuring the performance of the antenna 111; the grounding structure 200 has a first connecting end 201 and a second connecting end 202; the first connecting end 201 is used to connect to a first grounding portion 20a on the front shell 20 of the electronic device, and the second connecting end 202 is used to connect to a second grounding portion 30a on the display screen 30 of the electronic device. Compared to the method of grounding the front shell 20 and the display screen 30 by setting ground structures 200 respectively, the middle frame assembly 10 of this application embodiment can realize the connection between the first ground part 20a of the front shell 20 and the ground part 121 of the middle frame 100, and the connection between the second ground part 30a of the display screen 30 and the ground part 121 of the middle frame 100 by ground structure 200 alone. This saves more space and reduces the space occupied by the ground structure 200 of the front shell 20 and the display screen 30 while ensuring the performance of the antenna 111. It also facilitates the miniaturization design of electronic devices.

[0145] It should be noted that in the examples and description of this patent, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0146] Although this application has been illustrated and described with reference to certain preferred embodiments thereof, those skilled in the art should understand that various changes in form and detail may be made thereto without departing from the spirit and scope of this application.

Claims

1. A mid-frame component, characterized in that, Applied to electronic devices; the mid-frame component includes: The middle frame has a accommodating space; the middle frame includes an antenna and a grounding portion; the antenna and the grounding portion are connected by a connecting rib structure; A grounding structure is fixedly installed in the grounding portion and located within the accommodating space; the grounding structure has a first connection end and a second connection end; the first connection end is used to connect to a first grounding portion on the front shell of the electronic device, and the second connection end is used to connect to a second grounding portion on the display screen of the electronic device.

2. The mid-frame assembly according to claim 1, characterized in that, The grounding structure includes: The main body is fixedly installed on the grounding portion of the middle frame; The first elastic part has one end connected to the main body part and the other end extending away from the main body part, forming the first connecting end; The second elastic part has one end connected to the main body part and the other end extending away from the main body part, forming the second connecting end.

3. The mid-frame assembly according to claim 2, characterized in that, The grounding structure is a spring contact; the spring contact includes: The spring clip body serves as the main body portion; The first elastic arm, as the first elastic part, extends from the spring body in a direction away from the spring body and bends in a direction away from the grounding part; The second elastic arm, as the second elastic part, extends from the spring body in a direction away from the spring body and bends in a direction away from the grounding part; the orthographic projection of the second elastic arm on the grounding part is at a preset angle to the orthographic projection of the first elastic arm on the grounding part.

4. The mid-frame assembly according to claim 2, characterized in that, The grounding structure includes: A spring clip, comprising a spring clip body and a first elastic arm; the spring clip body serves as the main body portion; the first elastic arm serves as the first elastic portion, extending from the spring clip body in a direction away from the spring clip body and bending in a direction away from the grounding portion; An elastic conductive filler, serving as the second elastic part, is fixedly disposed on the side of the spring body away from the grounded portion of the middle frame.

5. The mid-frame assembly according to any one of claims 2 to 4, characterized in that, The middle frame includes: a frame body and a base plate; The frame is disposed at the edge of the base plate, and the two are connected to each other to jointly enclose the receiving space; the frame includes the antenna; The base plate includes the grounding portion and the connecting rib structure; the connecting rib structure extends from the grounding portion toward the antenna and is connected to the antenna.

6. The mid-frame assembly according to claim 5, characterized in that, The orthographic projection of the first elastic part on the base plate has an overlapping area with the connecting rib structure; The maximum distance between the connecting rib structure on the side away from the antenna in the first direction and the main body on the side away from the antenna in the first direction is less than 10mm; The first direction is the length direction or the width direction of the middle frame.

7. The mid-frame assembly according to claim 6, characterized in that, The minimum distance between the main body and the frame is greater than 0.3 mm.

8. The mid-frame assembly according to claim 4, characterized in that, The elastic conductive filler is conductive foam or conductive silver paste.

9. The mid-frame assembly according to claim 3 or 4, characterized in that, The thickness of the spring sheet is 0.1mm-0.2mm; The spring is made of metal.

10. The mid-frame assembly according to claim 3, characterized in that, The first elastic arm has a hemispherical protrusion at one end away from the main body; the hemispherical protrusion of the first elastic arm is used to abut against the front shell; The second elastic arm has a hemispherical protrusion at one end away from the main body; the hemispherical protrusion of the second elastic arm is used to abut against the display screen.

11. The mid-frame assembly according to claim 3, characterized in that, The preset angle is 90°.

12. The mid-frame assembly according to claim 1, characterized in that, The grounding structure is located at the corner of the middle frame.

13. The mid-frame assembly according to claim 1, characterized in that, The middle frame includes a metal part and a non-metal part that are connected together; The metal portion includes the antenna, the grounding portion, and the connecting rib structure; There is a hollow area between the grounding part and the antenna; At least a portion of the non-metallic portion is filled within the hollowed-out area.

14. An electronic device, characterized in that, include: The display screen, the front housing, and the mid-frame assembly as described in any one of claims 1 to 13; The display screen is disposed on the side of the grounding structure away from the middle frame and is connected to the middle frame; The front shell is disposed on the edge of the middle frame, and the two are connected; at least part of the front shell is located on the side of the display screen away from the middle frame, and covers the edge of the display screen; The grounding structure of the mid-frame assembly is partially located between the display screen and the mid-frame; the first connection end of the grounding structure is connected to the first grounding part on the front shell, and the second connection end is connected to the second grounding part on the display screen.

15. The electronic device according to claim 14, characterized in that, The front shell is made of non-metallic material; a metal layer of a predetermined area is covered on the outer surface of the front shell at the position corresponding to the first connection end of the grounding structure, and the metal layer forms the first grounding part; The display screen includes: a light-emitting functional layer, a supporting substrate, and a bamboo book; The light-emitting functional layer includes a first part, a bent part, and a second part that are connected in sequence; the second part is located on the non-display side of the first part. The supporting substrate is located between the first part and the second part and is used to support the second part; The bamboo book is located between the supporting substrate and the first part, and is used to support the first part; the bamboo book is provided with a second grounding part.

16. The electronic device according to claim 15, characterized in that, The second part is projected onto the bamboo book at an interval from the projection of the grounding structure onto the bamboo book.

17. The electronic device according to claim 14, characterized in that, The number of middle frames is two, including a first middle frame and a second middle frame; The electronic device also includes a pivot mechanism; the two sides of the pivot mechanism are rotatably connected to the first middle frame and the second middle frame respectively, so as to drive the first middle frame and the second middle frame to rotate towards each other or away from each other around the pivot mechanism, so as to switch the electronic device between a folded state and a flattened state. Both the first and second middle frames are provided with magnetic structures; the magnetic structures are located within the accommodating space. When the electronic device is in the folded state, the magnetic structures of the first middle frame and the magnetic structures of the second middle frame attract each other.

18. The electronic device according to claim 17, characterized in that, The number of magnetic structures is four, which are respectively located at the two corners of the first middle frame away from the rotating shaft mechanism and at the two corners of the second middle frame away from the rotating shaft mechanism; The magnetic structure and the grounding structure are spaced apart.

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