Electronic device

Abstract

The invention relates to the technical field of terminals, and discloses electronic equipment. The electronic equipment comprises a circuit board, an electromagnetic shielding assembly and a functional device. The circuit board is provided with a first board surface, and the first board surface comprises a wiring area. The electromagnetic shielding assembly is overlapped on the side, provided with the first plate face, of the circuit board and comprises conductive cloth, the conductive cloth is connected with the wiring area in an insulating mode, the orthographic projection area of the conductive cloth in a projection plane is a first projection area, and the projection plane is perpendicular to the overlapping direction of the electromagnetic shielding assembly and the circuit board. The functional device is arranged on one side, back to the circuit board, of the electromagnetic shielding assembly, and the orthographic projection area of the functional device in the projection plane is a second projection area. The first projection area does not coincide with the second projection area. According to the electronic equipment, the conductive cloth and the functional device are arranged in the projection plane in a staggered manner, so that the thickness space is effectively saved, and the overall thickness is reduced.

Description

Technical Field

[0001] The present application relates to the field of terminal technology, and in particular to an electronic device. Background Art

[0002] In order to satisfy user experience, electronic devices are gradually developing towards thinness and miniaturization, and the overall thickness of electronic devices is gradually decreasing. However, in existing electronic devices, the components are usually stacked along their thickness direction, and each component occupies a large thickness space, which is not conducive to realizing the thin and light design of electronic devices.

[0003] For example, in order to reduce the thickness of the foldable machine in the folded state, the thickness of the foldable machine in the unfolded state needs to be designed to be thinner than the thickness of conventional straight-screen machines, tablet computers and other electronic devices, and its internal space will also be smaller.

[0004] The folding machine is provided with adhesive backing, circuit boards, electromagnetic shielding components and functional devices stacked along the thickness direction. Among them, the adhesive backing is used to fix the circuit board on the display screen. The circuit board can be electrically connected to other components (for example, a display module) to transmit signals, thereby realizing various functions of the folding machine (for example, a screen display function). The electromagnetic shielding component can prevent other electronic components from interfering with the normal operation of the circuit board. Functional devices are used to realize various functions, such as protecting the battery or dissipating heat from the battery. However, the overall thickness occupied by this layout scheme is relatively large and cannot meet the thinning requirements. Summary of the invention

[0005] In order to solve the problem that the above-mentioned electronic device is relatively thick and difficult to meet the thinning requirements, the present application provides an electronic device with a compact structure.

[0006] In a first aspect, the present application provides an electronic device. The electronic device includes a circuit board, an electromagnetic shielding component, and a functional device. The circuit board has a first board surface, and the first board surface includes a wiring area. The electromagnetic shielding component is superimposed on the side of the circuit board having the first board surface, and the electromagnetic shielding component includes a conductive cloth, and the conductive cloth is insulated and connected to the wiring area. The positive projection area of ​​the conductive cloth in the projection plane is the first projection area, and the projection plane is perpendicular to the superimposition direction of the electromagnetic shielding component and the circuit board. The functional device is arranged on the side of the electromagnetic shielding component facing away from the circuit board, and the positive projection area of ​​the functional device in the projection plane is the second projection area. The first projection area does not overlap with the second projection area.

[0007] It can be understood that the above-mentioned electronic devices may include but are not limited to mobile phones (for example, folding phones, candy-bar phones), tablet computers, laptops, ultra-mobile personal computers (UMPCs), handheld computers, touch-screen TVs, walkie-talkies, netbooks, personal digital assistants (PDAs), wearable devices, virtual reality devices, smart vehicles, smart robots, industrial equipment and other electronic devices with circuit boards.

[0008] According to the embodiment of the present application, the first projection area and the second projection area do not overlap. That is, the conductive cloth and the functional device are staggered in the projection plane. In the projection plane, the conductive cloth is located in the area outside the functional device, which reduces the distance between the conductive cloth and the electromagnetic shielding component along the overlapping direction of the electromagnetic shielding component and the circuit board, thereby reducing the overall thickness of the electronic device.

[0009] The electronic device saves more thickness space by staggering the conductive cloth and the functional components in the projection plane, thereby meeting the requirements of lightweight design and having a wide range of applications.

[0010] In a possible implementation of the first aspect, the first projection area is arranged around the second projection area, thereby further improving the electromagnetic shielding effect of the conductive cloth while meeting the thinning requirements of the electronic device, thereby meeting the electromagnetic shielding requirements of the electronic device in various application scenarios.

[0011] In a possible implementation of the first aspect, the first projection area is in a “C” shape or a “mouth” shape.

[0012] Based on this, the conductive cloth can not only meet the needs of thinning and space saving, but also better cover the routing area of ​​the circuit board, thereby further improving the electromagnetic shielding effect and effectively avoiding problems such as signal distortion caused by electromagnetic interference during the signal transmission process.

[0013] In a possible implementation of the first aspect, the electromagnetic shielding assembly further includes a first protective layer, which is disposed on the surface of the conductive cloth facing the circuit board. Thus, the conductive cloth and the wiring area of ​​the circuit board are insulated and connected. At the same time, the first protective layer can also play a protective role such as waterproof and dustproof.

[0014] In a possible implementation of the first aspect, the electromagnetic shielding assembly further includes a second protective layer, which is disposed on the surface of the conductive fabric facing away from the circuit board, thereby providing insulation, waterproofing, dustproofing and other protective functions.

[0015] In a possible implementation of the first aspect, the orthographic projection area of ​​the first protective layer in the projection plane is the third projection area, and the orthographic projection area of ​​the second protective layer in the projection plane is the fourth projection area:

[0016] The third projection area does not overlap with the second projection area, and the ratio of the area of ​​the fourth projection area to the sum of the area of ​​the first projection area and the area of ​​the second projection area is 0.8 to 1.5;

[0017] or,

[0018] The fourth projection area does not overlap with the second projection area, and a ratio of an area of ​​the third projection area to a sum of an area of ​​the first projection area and an area of ​​the second projection area is 0.8 to 1.5.

[0019] According to the embodiment of the present application, the third projection area does not overlap with the second projection area, that is, the first protection layer and the functional device are staggered in the projection plane, thereby further reducing the thickness of the electronic device.

[0020] The ratio of the area of ​​the fourth projection area to the sum of the area of ​​the first projection area and the area of ​​the second projection area may be 0.8 to 1.5, for example, 0.8, 0.9, 1, 1.1, and the like.

[0021] Based on this, the second protective layer can cover a large area of ​​the circuit board and the conductive cloth. Therefore, the second protective layer can not only play an insulating role, but also effectively prevent liquid (such as water) from damaging the circuit board and the conductive cloth, further improving the reliability of the circuit board and the conductive cloth.

[0022] Alternatively, the fourth projection area does not overlap with the second projection area. That is, within the projection plane, the second protective layer is distributed in the area outside the functional device, thereby further reducing the thickness of the electronic device.

[0023] The ratio of the area of ​​the third projection area to the sum of the area of ​​the first projection area and the area of ​​the second projection area can be 0.8 to 1.5, for example, 0.8, 0.9, 1, 1.1, etc. The first protective layer can cover the circuit board and the conductive cloth over a large area. While the first protective layer plays an insulating role, it can also effectively prevent liquid (for example, water) from damaging the circuit board and the conductive cloth, further improving the reliability of the circuit board and the conductive cloth.

[0024] In a possible implementation of the first aspect, the electronic device also includes a first cover plate, the circuit board is fixed to the first cover plate by adhesive, the positive projection area of ​​the adhesive on the projection plane is a fifth projection area, and the fifth projection area does not overlap with the second projection area.

[0025] According to the embodiment of the present application, the fifth projection area does not overlap with the second projection area. That is, within the projection surface, the adhesive is distributed in the area outside the functional device, thereby further reducing the overall thickness of the electronic device.

[0026] In a possible implementation of the first aspect, the electronic device further includes a battery, the battery is disposed on a side of the electromagnetic shielding assembly facing away from the circuit board, and the functional device is at least partially located between the battery and the electromagnetic shielding assembly.

[0027] In a possible implementation of the first aspect, the back glue includes a first part, the first part is located between the first cover plate and the battery, the orthographic projection of the first part in the projection plane is a first sub-projection area, and the first sub-projection area is located outside the first projection area.

[0028] According to the implementation mode of the present application, the first sub-projection area is located outside the first projection area, that is, the first part of the back glue and the conductive cloth are staggered in the projection plane, thereby effectively avoiding the back glue and the conductive cloth occupying too much thickness space, thereby further reducing the overall thickness of the electronic device.

[0029] In a possible implementation of the first aspect, the circuit board is a flexible circuit board.

[0030] In a possible implementation of the first aspect, the first cover plate is a display module, and the circuit board is electrically connected to the display module.

[0031] In a possible implementation of the first aspect, the functional device is a Mylar or graphite sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1A A perspective view 1 of the folding machine in the embodiment of the present application in a flattened state is shown;

[0033] Figure 1B The folding machine in the embodiment of the present application is shown in a three-dimensional manner in a flattened state. Figure 2 ;

[0034] Figure 1C A three-dimensional diagram of the folding machine in the embodiment of the present application in a folded state is shown;

[0035] Figure 2 An exploded view of a first body in a folding machine in an embodiment of the present application is shown;

[0036] Figure 3A A schematic diagram of the structure of a circuit board in a first body of a folding machine in an embodiment of the present application is shown;

[0037] Figure 3B A schematic diagram of the structure of an electromagnetic shielding assembly in a first body of a folding machine in an embodiment of the present application is shown;

[0038] Figure 4A It shows that in some technical solutions, the first body is Figure 3B Section view at section AA in the middle.

[0039] Figure 4B A partial enlarged view of the first body at the conductive cloth in some technical solutions is shown;

[0040] Figure 5A An exploded view of the first body in the embodiment of the present application is shown, wherein the middle frame is not shown;

[0041] Figure 5B It shows that the first body in the embodiment of the present application Figure 5A A cross-sectional view at the middle BB section, wherein the middle frame is not shown;

[0042] Figure 5C A partial enlarged view of the first body at the conductive cloth in the embodiment of the present application is shown;

[0043] Figure 6 The exemplary shapes of the first projection area in other embodiments of the present application are shown;

[0044] Figure 7 A schematic diagram of the structure of the first protective layer in the folding machine in an embodiment of the present application is shown;

[0045] Figure 8 A schematic diagram of the structure of the second protective layer in the folding machine in an embodiment of the present application is shown;

[0046] Fig. 9 The exemplary structures of the first protective layer and the second protective layer in the folding machine in other embodiments of the present application are shown;

[0047] Fig.10 A schematic diagram showing the orthographic projection area of ​​the adhesive backing in the projection plane in the folding machine in the embodiment of the present application is shown;

[0048] Fig.11A A schematic diagram of the structure of the first body at the stacking area in some technical solutions is shown;

[0049] Fig. 11B A schematic diagram of the structure of the first body in the stacking area of ​​the folding machine in an embodiment of the present application is shown;

[0050] Fig.12 An exemplary configuration of the first sub-projection area in an embodiment of the present application is shown;

[0051] Fig.13A A perspective view of a straight-bar machine in some embodiments of the present application is shown;

[0052] Fig. 13BThe straight machine along some embodiments of the present application is shown Fig.13A Cross-sectional view of section CC.

[0053] Description of reference numerals: 1-folding machine; 10-first body; 100-first shell; 110-first cover plate; 120-second cover plate; 200-circuit board; 210-first board surface; 220-second board surface; 230-electronic components; 300-electromagnetic shielding assembly; 310-conductive cloth; 320-first protective layer; 330-second protective layer; 400-functional device; 410-first part of the functional device; 420-second part of the functional device; 430-third part of the functional device; 500-battery; 600-middle frame; 700-back glue; 710-first part of the back glue; 720-second part of the back glue; 10a-first body; 300a-electromagnetic shielding assembly; 310a-conductive cloth Conductive cloth; 320a-first protective layer; 330a-second protective layer; 700a-back glue; 20-second body; 30-hinge mechanism; 40-flexible screen assembly; 2-bar machine; 21-display module; 22-shell; 23-accommodating cavity; G1-safety gap; S1-first projection area; S2-second projection area; S3-third projection area; S4-fourth projection area; S5-fifth projection area; S5a-first sub-projection area; S5b-second sub-projection area; Sa-wiring area; Sb-stacking area; Sc-spacer area; D0-thickness of electromagnetic shielding assembly; D1-thickness of conductive cloth; D2-thickness of first protective layer; D3-thickness of second protective layer; D4-thickness of back glue. DETAILED DESCRIPTION

[0054] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0055] The present application provides an electronic device. The electronic device provided by the present application has a compact structure and can effectively reduce the overall thickness to meet the design requirements of lightness and thinness.

[0056] It can be understood that the electronic devices provided in the present application may include but are not limited to mobile phones (e.g., folding machines, straight-screen machines), tablet computers, laptop computers, ultra-mobile personal computers (UMPCs), handheld computers, touch-screen TVs, intercoms, netbooks, personal digital assistants (PDAs), wearable devices, virtual reality devices, smart vehicles, smart robots, industrial equipment, and other electronic devices with circuit boards. For the convenience of description, the following description is based on the folding machine as an example. In addition, for the convenience of description, the state of the folding machine after being folded is defined as the folded state, the state of the folding machine after being flattened is defined as the flattened state, and the state of the folding machine between the folded state and the flattened state is defined as the intermediate state.

[0057] Figure 1A A three-dimensional diagram 1 shows the folding machine 1 in the flattened state according to the embodiment of the present application. Figure 1B The folding machine 1 in the embodiment of the present application is shown in a three-dimensional manner in a flattened state. Figure 2 . Figure 1C A three-dimensional diagram of the folding machine 1 in the folded state according to the embodiment of the present application is shown.

[0058] Combination Figures 1A to 1C The folding machine 1 includes a first body 10, a second body 20, a hinge mechanism 30 and a flexible screen assembly 40. The first body 10 and the second body 20 are respectively arranged on opposite sides of the hinge mechanism 30. The first body 10 and the second body 20 are respectively connected to the hinge mechanism 30 and can rotate relative to each other. The flexible screen assembly 40 is fixed on the first body 10, the second body 20 and the hinge mechanism 30. Exemplarily, the first body 10, the second body 20 and the hinge mechanism 30 are covered by the flexible screen assembly 40. The first body 10 and the second body 20 rotate relative to each other through the hinge mechanism 30, and can drive the flexible screen assembly 40 to bend or flatten, so that the folding machine 1 can be Figure 1A and Figure 1B The flattened state shown and Figure 1C Toggles between the collapsed states shown.

[0059] In some embodiments of the present application, various electronic components may be disposed inside the first body 10 and the second body 20 to implement various functions of the folding machine 1. For ease of description, the first body 10 is used as an example to introduce the electronic components and related functions inside it.

[0060] In order to facilitate the subsequent description, before describing the specific structure of the folding machine 1, this application first combines Figure 1A and Figure 1BDefine the X-axis direction, Y-axis direction and Z-axis direction corresponding to the folding machine 1. Figure 1A and Figure 1B , the X-axis direction and the Y-axis direction are parallel to the plane where the flexible screen assembly 40 is located. That is to say, the XOY plane is parallel to the plane where the flexible screen assembly 40 is located. The X-axis direction is the direction from the first body 10 to the second body 20 when the folding mobile phone 1 is in a flat state. The Y-axis direction is perpendicular to the X-axis direction. The Z-axis direction is the thickness direction when the folding machine 1 is in a flat state. It should be noted that the thickness of each component refers to the size of each component along the Z-axis direction, which will not be repeated below.

[0061] In some implementations of the present application, the X-axis direction, the Y-axis direction, and the Z-axis direction are mutually perpendicular to each other. It can be understood that the mutual perpendicularity in the present application is not absolute perpendicularity, and the approximate perpendicularity caused by processing error and assembly error (for example, the angle between two structural features is 89.9°) is also within the range of mutual perpendicularity in the present application. The present application does not make specific limitations on this, and the limitation of mutual perpendicularity will not be repeated in the following text.

[0062] Figure 2 The exploded view of the first body 10 in the folding machine 1 in the embodiment of the present application is shown. Figure 2 As shown, the first body 10 includes a first housing 100, a circuit board 200, an electromagnetic shielding assembly (or conductive cloth assembly (covertape)) 300, a functional device 400, a battery 500 and a middle frame 600. The first housing 100 and the middle frame 600 are arranged opposite to each other along the Z-axis direction, and the circuit board 200, the electromagnetic shielding assembly 300 and the battery 500 are located between the first housing 100 and the middle frame 600.

[0063] Specifically, the first housing 100 includes a first cover plate 110 and a second cover plate 120. The first cover plate 110 is located between the second cover plate 120 and the middle frame 600. Exemplarily, the first housing 100 may be an external screen with a display function. Then the first cover plate 110 may be a display module with a display function. The second cover plate 120 may be a cover glass (CG) to protect the first cover plate 110.

[0064] Figure 3A The schematic diagram of the structure of the circuit board 200 in the first body 10 of the folding machine 1 in the embodiment of the present application is shown. Figure 2 and Figure 3AIn some embodiments of the present application, the circuit board 200 may be a flexible printed circuit (FPC). For example, the circuit board 200 may be used to connect a main board (not shown) and the first cover board 110, so that the main board can transmit various data signals to the first cover board 110, and the first cover board 110 may display different images, videos and other information according to different data signals.

[0065] The circuit board 200 has a first board surface 210 and a second board surface 220 . The first board surface 210 and the second board surface 220 are disposed opposite to each other along the Z-axis direction. The first board surface 210 faces away from the first cover plate 110 , and the second board surface 220 faces the first cover plate 110 .

[0066] The first board surface 210 includes a wiring area Sa. For example, the wiring area Sa may be Figure 3A The dark irregular area is surrounded by the dotted line. For example, the wiring area Sa may have exposed signal transmission lines to facilitate the signal from the circuit board 200 to other circuit boards or components. Alternatively, the wiring area Sa may also be used as a welding area to facilitate connecting other electronic components to the circuit board 200. Alternatively, the wiring area Sa may also be used as a grounding point of the circuit board 200 to ensure that the circuit board 200 can work normally.

[0067] In some embodiments of the present application, a plurality of electronic components 230 may be mounted on the first board surface 210. The plurality of electronic components 230 may constitute different circuits to achieve various functions. For example, the circuit board 200 may transmit the data signal of the mainboard to the first cover plate 110 through the circuit.

[0068] Figure 3B FIG. 1 is a schematic diagram showing the structure of the electromagnetic shielding assembly 300 in the first body 10 of the folding machine 1 in the embodiment of the present application. Figure 2 , Figure 3A and Figure 3B The electromagnetic shielding component 300 is overlapped on the side of the circuit board 200 having the first board surface 210. It can be understood that the overlapping direction of the circuit board 200 and the electromagnetic shielding component 300 is the Z-axis direction. The electromagnetic shielding component 300 covers the wiring area Sa of the circuit board 200. In addition, the electromagnetic shielding component 300 is insulated from the wiring area Sa to prevent the electromagnetic shielding component 300 from being conductive with the wiring area Sa.

[0069] The electromagnetic shielding assembly 300 can provide grounding and electromagnetic shielding for the circuit board 200 , thereby avoiding interference between the circuit board 200 and other components (eg, the battery 500 ), thereby ensuring that the folder 1 can operate normally.

[0070] It can be understood that the functional device 400 is located on the side of the electromagnetic shielding assembly 300 facing away from the circuit board 200. That is, the orthographic projection area of ​​the functional device 400 in the projection plane at least partially overlaps with the orthographic projection area of ​​the electromagnetic shielding assembly 300 in the projection plane. The projection plane may be a plane perpendicular to the overlapping direction of the circuit board 200 and the electromagnetic shielding assembly 300 (i.e., the Z-axis direction). For example, the projection plane may be an XOY plane.

[0071] In some embodiments of the present application, the functional device 400 may be disposed on the battery 500. For example, the battery 500 is located on the side of the electromagnetic shield 300 facing away from the circuit board 200. The functional device 400 may be wrapped around the end of the battery 500. In addition, along the Z-axis direction, at least part of the functional device 400 is located between the electromagnetic shield assembly 300 and the battery 500. The thickness of the portion of the functional device 400 located between the electromagnetic shield assembly 300 and the battery 500 is about 0.05 mm.

[0072] The functional device 400 can protect the battery 500. For example, the functional device 400 can be Mylar, which can be waterproof and anti-collision. Alternatively, in other alternative implementations, the functional device 400 can also be a heat dissipation component. For example, the functional device 400 can also be a graphite sheet, which can conduct heat and thus dissipate the heat generated by the battery 500.

[0073] It is understood that the above embodiment is only described by taking the functional device 400 being disposed on the battery 500 as an example. In some other embodiments, the functional device 400 may also be disposed on other devices (eg, a circuit board module), and the present application does not impose any limitation on this.

[0074] Figure 4A It shows that in some technical solutions, the first body 10a is Figure 3B Section view at section AA in the middle. Figure 4B The first housing 10a is shown in some technical solutions. The first housing 10a is shown in some technical solutions. Figure 4A A battery 500 is also shown.

[0075] Combination Figure 4A and Figure 4B, the circuit board 200 is fixed to the first cover plate 110 by means of adhesive 700a. The electromagnetic shielding assembly 300a includes a conductive cloth 310a, a first protective layer 320a and a second protective layer 330a. Along the Z-axis direction, the first protective layer 320a is disposed on the surface of the conductive cloth 310a facing the circuit board 200, and the second protective layer 330 is disposed on the surface of the conductive cloth 310a facing away from the circuit board 200. Among them, the positive projection area of ​​the conductive cloth 310a in the projection plane is the first projection area S1a. For example, the first projection area S1a can be Figure 4B Dark irregular areas in the.

[0076] The battery 500 is located on the side of the electromagnetic shielding assembly 300a facing away from the circuit board 200. Along the Y-axis direction, the functional device 400 is arranged at the end of the battery 500. The functional device 400 includes a first part 410, a second part 420 and a third part 430 connected in sequence. Among them, the first part 410 is located between the electromagnetic shielding assembly 300a and the battery 500. The second part 420 is located at the end of the battery 500 and is connected to the first part 410 and the third part 430 respectively. The third part 430 is located on the side of the battery 500 facing away from the electromagnetic shielding assembly 300a.

[0077] The positive projection area of ​​the functional device 400 in the projection plane is the second projection area S2. For example, the second projection area S2 can be Figure 4B The second projection area S2 is located within the first projection area S1a.

[0078] Along the Z-axis direction, a safety gap G1 is left between the first portion 410 of the functional device 400 and the electromagnetic shielding assembly 300 a to avoid interference between the functional device 400 and the electromagnetic shielding assembly 300 a due to thermal expansion of the battery 500 .

[0079] In the stacking area Sb of the first body 10a, the second cover plate 120, the first cover plate 110, the adhesive 700a, the circuit board 200, the first protective layer 320a, the conductive cloth 310a, the second protective layer 330a, the safety gap G1, the first part 410 of the functional device 400, the battery 500 and the third part 430 of the functional device 400 are stacked in sequence along the negative direction of the Z axis, with a total of eleven layers. The stacking is too dense, resulting in a relatively thick overall thickness of the first body 10a, which is difficult to meet the thinning requirements.

[0080] In order to solve the above problems, the embodiment of the present application staggers the conductive cloth and the functional device in the projection plane to effectively compress the distribution space of the conductive cloth and the functional device in the Z-axis direction, thereby further improving the compactness of the structure, effectively reducing the overall thickness of the folder, and achieving the thinning requirement of the folder. The technical solution of the present application is introduced below in conjunction with the accompanying drawings.

[0081] Figure 5A An exploded view of the first body 10 in the embodiment of the present application is shown, wherein the middle frame 600 is not shown. Figure 5B It shows that the first body 10 in the embodiment of the present application Figure 5A A cross-sectional view taken along the BB section, wherein the middle frame 600 is not shown. Figure 5C A partial enlarged view of the first body 10 at the conductive cloth 310 in the embodiment of the present application is shown.

[0082] Combination FIG. 5A to FIG. 5C The first body 10 includes a first shell 100, a circuit board 200, an electromagnetic shielding assembly 300, a functional device 400 and a battery 500 arranged in sequence along the negative direction of the Z axis.

[0083] The circuit board 200 has a first board surface 210. The first board surface 210 includes a wiring area (for example, the above Figure 3A The routing area Sa shown in FIG.

[0084] The electromagnetic shielding assembly 300 is disposed on the side of the circuit board 200 having the first board surface 210. The electromagnetic shielding assembly 300 includes a conductive cloth 310. The conductive cloth 310 is insulated and connected to the wiring area of ​​the circuit board 200 so as to play a role in grounding and electromagnetic shielding. The positive projection area of ​​the conductive cloth 310 in the projection plane is the first projection area S1. For example, the first projection area S1 can be Figure 5C The dark irregular area shown in FIG. 1 is a dark irregular area shown in FIG. 1 . Accordingly, the wiring area of ​​the circuit board 200 can be Figure 5C The area occupied by the dark irregular areas in .

[0085] The functional device 400 is located on the side of the electromagnetic shielding assembly 300 facing away from the circuit board 200. The positive projection area of ​​the functional device 400 in the projection plane is the second projection area S2. The second projection area S2 can be Figure 5C The rectangular area enclosed by the dotted line shown.

[0086] Exemplarily, the functional device 400 can be wrapped around the end of the battery 500. The functional device 400 includes a first portion 410, a second portion 420, and a third portion 430 connected in sequence. The first portion 410 is located between the electromagnetic shielding assembly 300 and the battery 500. The second portion 420 is located at the end of the battery 500 and is connected to the first portion 410 and the third portion 430, respectively. The third portion 430 is located on the side of the battery 500 facing away from the electromagnetic shielding assembly 300. That is, the second projection area S2 at least partially overlaps with the orthographic projection of the electromagnetic shielding assembly 300 in the projection plane. For example FIG. 5A to FIG. 5C As shown, the second projection area S2 is located within the orthographic projection area (not shown) of the electromagnetic shielding assembly 300 within the projection plane.

[0087] The first projection area S1 and the second projection area S2 do not overlap. That is, the conductive cloth 310 and the functional device 400 are staggered in the projection plane. In the XOY plane, the conductive cloth 310 is located in the area outside the functional device 400, and the distance between the functional device 400 and the circuit board 200 can be smaller, thereby reducing the overall thickness of the folder 1.

[0088] The above-mentioned folder 1 effectively reduces the concentration of component stacking in the stacking area Sb by reasonably designing the layout between the conductive cloth 310 and the functional device 400, saves more thickness space, and thus meets the design requirements of lightness and thinness.

[0089] For example, compared Figure 4A , Figure 4B and Figure 5B , Figure 5C , the conductive cloth and the functional device are also stacked in the first body. The conductive cloth 310a and the functional device 400 in the first body 10a are both stacked in the stacking area Sb. The conductive cloth 310a and the functional device 400 will occupy a large thickness space and cannot meet the thinning requirements. In the present application, the conductive cloth 310 and the functional device 400 are staggered in the projection plane, saving the thickness of the conductive cloth 310 (for example, 0.03mm), thereby making the overall structure of the folder 1 more compact, effectively meeting the thinning requirements of the folder 1, and having a wide range of applications.

[0090] In addition, the layout of the conductive cloth 310 can also leave more space for other components to fully utilize the space inside the folding machine 1 and improve the working performance of the folding machine 1. For example, the conductive cloth 310 and the functional device 400 are staggered in the XOY plane, so that the volume of the battery 500 can be designed to be larger, and accordingly, the capacity of the battery 500 will also be larger, thereby making the battery life of the folding machine 1 better.

[0091] Continue reading Figure 5B In some embodiments of the present application, the circuit board 200 is arched along the positive direction of the Z axis. The circuit board 200 as a whole is similar to an inverted "U" shape. However, this is only a schematic illustration and does not constitute a specific limitation on the implementation of the present application. In some other embodiments of the present application, the circuit board 200 may also have other forms. For example, the circuit board 200 may also be similar to a "one" shape, and the present application does not limit this.

[0092] In some embodiments of the present application, the first projection area S1 can be surrounded by the second projection area S2 to further enhance the electromagnetic shielding effect of the conductive cloth 310 while meeting the thinning requirements of the folding phone 1, thereby meeting the electromagnetic shielding requirements of the folding phone 1 in various application scenarios.

[0093] Exemplarily, in combination with Figure 3A and Figure 5C , the first projection area S1 can be arranged around the second projection area S2 in a shape similar to a "C". Based on this, while meeting the requirements of thinning and space saving, the conductive cloth 310 can better cover the wiring area Sa of the circuit board 200, thereby further enhancing the electromagnetic shielding effect and effectively avoiding problems such as signal distortion caused by electromagnetic interference during signal transmission.

[0094] It can be understood that the above Figure 5C only schematically shows the shape of the first projection area S1. In some other embodiments, the first projection area S1 can also have other shapes. For example, Figure 6 shows an exemplary shape of the first projection area S1 in some other embodiments of the present application. Referring to Figure 6 , in some other embodiments of the present application, the first projection area S1 can also be in the shape of a "square". The present application does not limit this. Any shape of the first projection area S1 that can simultaneously meet the above-mentioned thinning requirements and electromagnetic shielding requirements is within the protection scope of the present application.

[0095] Continuing to refer to Figure 5A and Figure 5B , in some embodiments of the present application, the electromagnetic shielding component 300 can further include a first protective layer 320. The first protective layer 320 is disposed on the surface of the conductive cloth 310 facing the circuit board 200, so that the conductive cloth 310 is insulated from the wiring area (not shown) of the circuit board 200. At the same time, the first protective layer 320 can also play a protective role such as waterproofing and dustproofing. Exemplarily, the first protective layer 320 can be mylar.

[0096] In some embodiments of the present application, the electromagnetic shielding component 300 can further include a second protective layer 330. The second protective layer 330 is disposed on the surface of the conductive cloth 310 facing away from the circuit board 200, so that it can play a protective role such as insulation, waterproofing and dustproofing. Exemplarily, the second protective layer 330 can also be mylar.

[0097] In some embodiments of the present application, when the electromagnetic shielding component 300 includes the first protective layer 320 and the second protective layer 330, any one of the first protective layer 320 and the second protective layer 330 can be arranged staggeredly with the functional device 400 in the XOY plane, so as to further reduce the thickness of the folding mobile phone 1 while meeting the protection requirements such as insulation, dustproofing and waterproofing.

[0098] It can be understood that, in order to meet the protection requirements such as insulation, dustproofing and waterproofing, when the electromagnetic shielding component 300 includes one of the first protective layer 320 and the second protective layer 330, this protective layer cannot be arranged staggeredly with the functional device 400 in the XOY plane.

[0099] The following uses the electromagnetic shielding assembly 300 including the first protective layer 320 and the second protective layer 330 as an example to introduce several exemplary layouts of the first protective layer 320 and the second protective layer 330 .

[0100] Figure 7 A schematic structural diagram of the first protective layer 320 in the folding machine 1 in an embodiment of the present application is shown. Figure 8 A schematic structural diagram of the second protective layer 330 in the folder 1 in the embodiment of the present application is shown.

[0101] For ease of understanding, before introducing the specific layout of the first protection layer 320 and the second protection layer 330, Figure 7 and Figure 8 A third projection area S3 and a fourth projection area S4 are defined.

[0102] Combination Figure 7 and Figure 8 , the orthographic projection area of ​​the first protective layer 320 in the projection plane is the third projection area S3. For example, the third projection area S3 can be Figure 7 The orthographic projection area of ​​the second protective layer 330 in the projection plane is the fourth projection area S4. For example, the fourth projection area S4 can be Figure 8 Dark irregular areas shown.

[0103] Combination Figure 5B , Figure 5C , Figure 7 and Figure 8 In some embodiments of the present application, the third projection area S3 does not overlap with the second projection area S2. That is, the first protection layer 320 and the functional device 400 are staggered in the XOY plane.

[0104] Based on this, the first protective layer 320 does not occupy the thickness space at the stacking area Sb, thereby further reducing the thickness of the folder 1. For example, the thickness of the first protective layer 320 can be 0.01 mm. Through the above-mentioned layout scheme of staggered arrangement of the first protective layer 320 and the functional device 400 in the XOY plane, the folder 1 can save 0.01 mm of thickness.

[0105] In some implementations, the ratio of the area of ​​the fourth projection area S4 to the sum of the area of ​​the first projection area S1 and the area of ​​the second projection area S2 may be 0.8-1.5, for example, 0.8, 0.9, 1, 1.1, etc.

[0106] Based on this, the second protective layer 330 can cover a large area of ​​the circuit board 200 and the conductive cloth 310. Therefore, the second protective layer 330 can not only play an insulating role, but also effectively prevent liquid (for example, water) from damaging the circuit board 200 and the conductive cloth 310, further improving the reliability of the circuit board 200 and the conductive cloth 310.

[0107] In other embodiments of the present application, the layout of the first protective layer 320 and the second protective layer 330 can be interchanged and combined in any manner.

[0108] Specifically, Fig. 9 2 shows exemplary structures of the first protective layer 320 and the second protective layer 330 in the folding machine 1 in other embodiments of the present application. Figure 5B , Figure 5C , Figures 7 to 9 In some other embodiments of the present application, the fourth projection area S4 does not overlap with the second projection area S2. That is, in the XOY plane, the second protection layer 330 and the functional device 400 are staggered. The ratio of the area of ​​the third projection area S3 to the sum of the area of ​​the first projection area S1 and the area of ​​the second projection area S2 can be 0.8 to 1.5, for example, 0.8, 0.9, 1, 1.1, etc.

[0109] Based on this, the first protective layer 320 can cover a large area of ​​the circuit board 200 and the conductive cloth 310. While the first protective layer 320 plays an insulating role, it can also effectively prevent liquid (for example, water) from damaging the circuit board 200 and the conductive cloth 310, further improving the reliability of the circuit board 200 and the conductive cloth 310. The second protective layer 330 does not occupy the thickness space at the stacking area Sb, thereby further reducing the thickness of the folder 1.

[0110] Continue reading Figure 5A and Figure 5B In some embodiments of the present application, the circuit board 200 can be fixed on the first cover plate 110 by means of the adhesive 700. The adhesive 700 and the functional device 400 are staggered in the XOY plane, and the adhesive 700 does not occupy the thickness space at the stacking area Sb, thereby further reducing the overall thickness of the folder 1.

[0111] Fig.10 The schematic diagram of the orthographic projection area of ​​the adhesive 700 in the folding machine 1 in the embodiment of the present application is shown. Figure 5B , Fig. 9 and Fig.10 , the positive projection area of ​​the adhesive backing 700 in the projection plane is the fifth projection area S5. For example, the fifth projection area S5 may be Fig.10The two dark areas surrounded by dotted lines in the figure. The fifth projection area S5 does not overlap with the second projection area S2. That is to say, the adhesive backing 700 and the functional device 400 are staggered in the XOY plane. The adhesive backing 700 may not occupy the thickness space at the stacking area Sb. For example, the thickness of the adhesive backing 700 may be 0.05 mm. Then, by staggering the adhesive backing 700 and the functional device 400 in the projection plane, the thickness of a layer of adhesive backing 700 (i.e., 0.05 mm) can be saved, which is conducive to realizing the lightweight design of the folding machine 1.

[0112] The above-mentioned folder 1 can greatly save the thickness space at the stacking area Sb by staggering the conductive cloth 310, the first protective layer 320 and the adhesive 700 in the XOY plane, thereby reducing the overall thickness.

[0113] Specifically, Fig.11A A schematic structural diagram of the first body 10a at the stacking area Sb in some technical solutions is shown. Fig. 11B A schematic structural diagram of the first body 10 at the stacking area Sb in an embodiment of the present application is shown.

[0114] like Fig.11A As shown, in some technical solutions, the first body 10a is stacked with eleven layers of structure at the stacking area Sb, that is, the second cover plate 120, the first cover plate 110, the adhesive 700, the circuit board 200, the first protective layer 320a, the conductive cloth 310a, the second protective layer 330a, the safety gap G1, the first part 410 of the functional device 400, the battery 500 and the third part 430 of the functional device 400, a total of eleven layers. Exemplarily, the thickness D1 of the conductive cloth 310a is about 0.03mm. The thickness D2 of the first protective layer 320a is about 0.01mm. The thickness D3 of the second protective layer 330a is about 0.01mm. That is to say, the overall thickness D0 of the electromagnetic shielding assembly 300a in the stacking area Sa is 0.05m. The thickness D4 of the adhesive 700a is about 0.05mm. The overall thickness of the first body 10a is relatively thick, which is difficult to meet the thinning requirements.

[0115] like Fig. 11B As shown, in the present application, at the stacking area Sb, the first body 10 includes a second cover plate 120, a first cover plate 110, a circuit board 200, a second protective layer 330, a safety gap G1, a first part 410 of the functional device 400, a battery 500 and a third part 430 of the functional device 400, which are arranged in sequence along the negative direction of the Z axis, a total of eight layers. The overall structure of the first body 10 is highly compact, which effectively reduces the overall thickness of the folding machine 1.

[0116] contrast Fig.11A and Fig. 11B, the present application reduces the thickness of the three-layer structure (i.e., the conductive cloth 310, the first protective layer 320, the adhesive backing 700) of the first body 10 compared to the first body 10a in the prior art solution by staggering the conductive cloth 310, the first protective layer 320, the adhesive backing 700, and the functional device 400. In other words, the present application can reduce the thickness by 0.09 mm compared to the prior art. Therefore, the volume of the battery 500 can be made larger, and the capacity of the battery 500 can be increased by about 100 mAh. The structure of the first body 10 is more compact, occupies less space, and has better working performance.

[0117] Combination Figure 5A , Figure 5B and Fig.10 In some embodiments of the present application, the positive projection area of ​​the battery 500 in the projection plane is the sixth projection area S6. For example, the sixth projection area S6 may be Fig.10 In the middle is a dark irregular area.

[0118] The adhesive backing 700 may include a first portion 710 and a second portion 720. The first portion 710 and the second portion 720 are spaced apart along the Y-axis direction. In addition, the first portion 710 is located between the first cover plate 110 and the battery 500. The orthographic projection area of ​​the first portion 710 in the projection plane is the first sub-projection area S5a (i.e., Fig.10 The orthographic projection area of ​​the second part 720 in the projection plane is the second sub-projection area S5b (ie, Fig.10 Along the Y-axis direction, the first sub-projection area S5a and the second sub-projection area S5b are respectively located on the opposite sides of the second projection area S2. In addition, the first sub-projection area S5a is located in the sixth projection area S6.

[0119] Fig.12 FIG. 2 shows an exemplary configuration of the first sub-projection area S5a in an embodiment of the present application. Figure 5B and Fig.12 In some embodiments of the present application, the first sub-projection area S5a does not overlap with the first projection area S1. For example, along the Y-axis direction, the first sub-projection area S5a can be located between the first projection area S1 and the second projection area S2. That is to say, in the spacing area Sc between the first cover plate 110 and the battery 500, the adhesive 700 and the conductive cloth 310 are staggered in the XOY plane, thereby effectively avoiding the adhesive 700 and the conductive cloth 310 from occupying too much thickness space in the spacing area Sc, further reducing the thickness of the folding machine 1.

[0120] It is understandable that the above Fig.10 and Fig.12The shape of the fifth projection area S5 is only schematically shown. In other embodiments, the fifth projection area S5 may also be in other shapes. For example, the fifth projection area S5 may also be in a "C" shape or a "mouth" shape. For details, please refer to Figure 5C and Figure 6 The present application does not limit this, and any shape of the fifth projection area S5 that can achieve the effect of fixing the circuit board 200 and reducing the thickness is within the protection scope of the present application.

[0121] It should be noted that this embodiment is an exemplary description of the technical solution of this application, and those skilled in the art may make other variations. For example, in this embodiment, only the circuit board 200, the electromagnetic shielding assembly 300, the functional device 400, the battery 500 and the adhesive 700 are stacked at the first cover plate 110 in the first body 10 as an exemplary description. In some other embodiments, the layout of the electromagnetic shielding assembly 300 and the adhesive 700 can also be applied to other positions of the folding machine 1 (for example, the flexible screen assembly 40).

[0122] For example, in this embodiment, the electronic device is a folding machine 1, and the first cover plate 110 is an external screen display module of the folding machine 1. In some other embodiments, the electronic device may also be in other structural forms. For example, Fig.13A A stereoscopic view of a straight-bar machine 2 in some embodiments of the present application is shown. Fig. 13B The straight-panel machine 2 in some embodiments of the present application is shown Fig.13A Cross-sectional view of section CC.

[0123] Combination Fig.13A and Fig. 13B , the electronic device can also be a straight-screen phone 2. The straight-screen phone 2 includes a display screen module 21 (i.e., the first cover plate 110 in the above-mentioned folding mobile phone 1) and a shell 22. The display screen module 21 is connected to the shell 22, and together they form a receiving cavity 23. A circuit board 200, an electromagnetic shielding assembly 300, a functional device 400, a battery 500, and an adhesive backing 700 are stacked in the receiving cavity 23. Among them, the circuit board 200 is fixed to the display screen module 21 by the adhesive backing 700. The electromagnetic shielding assembly 300 is superimposed on the circuit board 200. The battery 500 is located on the side of the electromagnetic shielding assembly 300 that is away from the circuit board 200. The functional device 400 is arranged on the battery 500, and is at least partially located between the electromagnetic shielding assembly 300 and the battery 500.

[0124] The specific layout of the electromagnetic shielding component 300 and the adhesive 700 in the bar-type machine 2 is basically the same as the layout of the electromagnetic shielding component 300 and the adhesive 700 in the aforementioned folding machine 1. Based on this, the specific layout of the electromagnetic shielding component 300 and the adhesive 700 in the bar-type machine 2 can be referred to. FIG. 5A to FIG. 12 And the related descriptions are not repeated here.

[0125] The above is an explanation of the implementation mode of the present application by specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to the implementation mode. On the contrary, the purpose of introducing the application in conjunction with the implementation mode is to cover other options or modifications that may be extended based on the claims of the present application. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details are omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0126] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "outside", "inside", "circumferential", "radial", "axial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0127] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection" and "fitting" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0128] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. An electronic device, characterized in that: include: A circuit board, the circuit board having a first board surface, the first board surface including a wiring area; An electromagnetic shielding component, the electromagnetic shielding component is overlapped on a side of the circuit board having the first board surface, the electromagnetic shielding component comprises a conductive cloth, the conductive cloth is insulated and connected to the routing area, the orthographic projection area of ​​the conductive cloth in the projection plane is a first projection area, and the projection plane is perpendicular to the overlapping direction of the electromagnetic shielding component and the circuit board; A functional device, wherein the functional device is disposed on a side of the electromagnetic shielding component facing away from the circuit board, and an orthographic projection area of ​​the functional device within the projection plane is a second projection area; The first projection area does not overlap with the second projection area.

2. The electronic device according to claim 1, characterized in that: The first projection area is surrounded by the second projection area.

3. The electronic device according to claim 2, characterized in that: The first projection area is in a "C" shape or a "mouth" shape.

4. The electronic device according to claim 1, characterized in that: The electromagnetic shielding assembly further includes a first protective layer, which is disposed on a surface of the conductive cloth facing the circuit board.

5. The electronic device according to claim 4, characterized in that: The electromagnetic shielding assembly further includes a second protective layer, which is disposed on a surface of the conductive cloth facing away from the circuit board.

6. The electronic device according to claim 5, characterized in that: The orthographic projection area of ​​the first protective layer on the projection surface is a third projection area, the third projection area does not overlap with the second projection area, and the orthographic projection area of ​​the second protective layer on the projection surface is a fourth projection area: The ratio of the area of ​​the fourth projection area to the sum of the area of ​​the first projection area and the area of ​​the second projection area is 0.8 to 1.5; or The fourth projection area does not overlap with the second projection area, and a ratio of an area of ​​the third projection area to a sum of an area of ​​the first projection area and an area of ​​the second projection area is 0.8 to 1.

5.

7. The electronic device according to any one of claims 1 to 6, characterized in that: The electronic device further comprises a first cover plate, the circuit board is fixed on the first cover plate by adhesive, the positive projection area of ​​the adhesive within the projection plane is a fifth projection area, and the fifth projection area does not overlap with the second projection area.

8. The electronic device according to claim 7, characterized in that: The electronic device further comprises a battery, wherein the battery is arranged on a side of the electromagnetic shielding component facing away from the circuit board, and the functional device is at least partially located between the battery and the electromagnetic shielding component.

9. The electronic device according to claim 8, characterized in that: The back glue includes a first part, the first part is located between the first cover plate and the battery, the projection of the first part on the projection plane is a first sub-projection area, and the first sub-projection area does not overlap with the first projection area.

10. The electronic device according to any one of claims 7 to 9, characterized in that: The circuit board is a flexible circuit board.

11. The electronic device according to any one of claims 7 to 10, characterized in that: The first cover plate is a display module, and the circuit board is electrically connected to the display module.

12. The electronic device according to any one of claims 1 to 11, characterized in that: The functional device is a Mylar or graphite sheet.

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