Electronic device

Abstract

The present application relates to the technical field of terminal devices. Provided is an electronic device, which is used for solving the problem of vibration and abnormal pressing noise being easily caused due to the fact that sound-producing apparatuses of electronic devices use open rear cavities. The electronic device comprises a middle frame, a sound-producing apparatus, an isolation member, a battery and a mainboard. The middle frame comprises a side frame and a middle plate, wherein the middle plate is fixed in the side frame. The sound-producing apparatus is located on one side of the middle plate. The isolation member and the sound-producing apparatus are located on the same side of the middle plate. The isolation member and an inner wall of the side frame form a first space, and the sound-producing apparatus is located in the first space. The battery and the isolation member are disposed on the same side of the middle plate, and the battery is located outside the first space. The mainboard and the battery are disposed on the same side of the middle plate, and a partial region of the mainboard is located outside the first space.

Description

An electronic device

[0001] The present application claims priority to the Chinese Patent Application No. 202411126651.5, filed on August 15, 2024, and entitled "An Electronic Device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of terminal devices, and in particular to an electronic device. BACKGROUND

[0003] In an electronic device (for example, a mobile phone), the audio effect of a sound emitting device is an important factor affecting user experience. Most sound emitting devices use an open back cavity design, but the open back cavity design can cause vibration and abnormal pressing sound, which affects user experience. SUMMARY

[0004] Embodiments of the present application provide an electronic device to solve the problem that the sound emitting device of the electronic device uses an open back cavity, which can cause vibration and abnormal pressing sound.

[0005] To achieve the above-mentioned purpose, embodiments of the present application adopt the following technical solutions:

[0006] In a first aspect, an electronic device is provided, which includes a middle frame, a sound emitting device, a partition, a battery, and a mainboard. The middle frame includes a frame and a middle plate, and the middle plate is fixed in the frame. The sound emitting device is located on one side of the middle plate. The partition is arranged on the middle plate, and the partition and the sound emitting device are located on the same side of the middle plate; the partition and the inner wall of the frame form a first space, and the sound emitting device is located in the first space. The battery and the partition are arranged on the same side of the middle plate, and the battery is located outside the first space. The mainboard and the battery are arranged on the same side of the middle plate, and part of the area of the mainboard is located outside the first space.

[0007] The electronic device provided by the first aspect of the present application forms a first space by the partition and the inner wall of the frame, and the sound emitting device is located in the first space. The first space can be used as the back cavity of the sound emitting device, and the battery is located outside the back cavity of the sound emitting device. Therefore, when the area of the outer surface of the electronic device corresponding to the battery is pressed, the vibration caused by the compression of the internal space cannot be transmitted to the first space, that is, cannot be transmitted to the back cavity of the sound emitting device, thereby avoiding abnormal sound of the sound emitting device, so as to ensure the sound quality effect of the sound emitting device.

[0008] Exemplarily, in a case that the electronic device is a folding screen terminal, the middle frame is provided with at least two, which are rotationally connected through the rotating shaft mechanism. The electronic device further comprises a folding screen and a back cover. The folding screen and the back cover are respectively located on two sides of the middle frame. The isolation piece, the sound generating device and the battery can be arranged between the back cover and the middle plate, or arranged between the folding screen and the middle plate.

[0009] Further, the electronic device can further comprise a display screen, also referred to as an outer screen or a secondary screen. The display screen is arranged on a side of the middle frame away from the folding screen. That is, the back cover is arranged on one of the two middle frames, and the display screen is arranged on the other middle frame. The isolation piece, the sound generating device and the battery can be arranged between the display screen and the middle plate.

[0010] In addition, since part of the main board is located outside the first space, the area of the main board located outside the first space can be electrically connected with some components outside the first space. Exemplarily, the battery and the main board can be electrically connected through an electrical connecting piece (for example, a flexible circuit board). In this way, the electrical connecting piece does not need to pass through the isolation piece, and the two will not conflict, that is, the isolation effect of the isolation piece will not be affected, and the electrical connecting piece will not be damaged.

[0011] In a possible implementation of the first aspect of the present application, the isolation piece comprises a first isolation piece and a second isolation piece. The first isolation piece is arranged on a surface of the main board away from the middle plate, and the second isolation piece is arranged between the main board and the middle plate. In this way, along the thickness direction of the electronic device, the thickness dimension of the isolation piece can be reduced, and the width dimension of the isolation piece is increased due to the large thickness of the isolation piece, thereby facilitating the isolation piece to save the occupied space.

[0012] In a possible implementation of the first aspect of the present application, a second space is formed between the end of the isolation piece and the inner wall of the frame, and the second space is filled with a sealing material. In this structure, the gap between the end of the isolation piece and the inner wall of the frame can be sealed by the sealing material filled in the second space, which is conducive to improving the sealing effect of the isolation piece on the first space.

[0013] For example, along the thickness direction of the electronic device, in a case that the isolation piece is arranged between the middle plate and the back cover, the two ends of the second space are blocked by the middle plate and the back cover or the outer screen, so that the second space forms a sealed space. After the second space is filled with the sealing material, the gap between the end of the isolation piece and the inner wall of the frame can be sealed.

[0014] In a possible implementation of the first aspect of the present application, a first sub-space is formed between the end of the first isolation member and the inner wall of the frame, a second sub-space is formed between the end of the second isolation member and the inner wall of the frame, and a third sub-space is formed between the edge of the main board and the inner wall of the frame. The first sub-space, the third sub-space, and the second sub-space are sequentially arranged along the thickness direction of the electronic device and are in communication with each other to form the second space. In this way, the gaps between the end of the first isolation member and the inner wall of the frame, between the edge of the main board and the inner wall of the frame, and between the end of the second isolation member and the inner wall of the frame can be sealed by the sealing material, thereby improving the sealing effect of the first space.

[0015] In a possible implementation of the first aspect of the present application, the cross-sectional areas of the first sub-space, the third sub-space, and the second sub-space decrease sequentially along the direction in which the main board points to the middle plate. That is, the first sub-space, the third sub-space, and the second sub-space form a step structure that decreases sequentially along the direction in which the main board points to the middle plate. In this way, when the sealing material is filled in the second space, the sealing material has fluidity before solidification, for example, sealant. Therefore, the sealing material can flow along the step structure to the bottom of the second space (i.e., the surface of the middle plate), thereby reducing the risk that the second space is not filled completely after the sealing material is filled in the second space, to improve the sealing effect.

[0016] In a possible implementation of the first aspect of the present application, the vertical projection of the first sub-space on the middle plate covers the vertical projection of the third sub-space on the middle plate, and the vertical projection of the third sub-space on the middle plate covers the vertical projection of the second sub-space on the middle plate. In this structure, the spaces formed between the first isolation member and the middle plate and between the main board and the middle plate in the second space are avoided, thereby further reducing the risk that the second space cannot be filled completely by the sealing material.

[0017] In a possible implementation of the first aspect of the present application, the cross-sectional areas of the second sub-space, the third sub-space, and the first sub-space decrease sequentially along the direction in which the middle plate points to the main board, and an injection port is arranged on the middle plate and is in communication with the second space. In this structure, the sealing material can be filled into the second space from the side of the middle plate through the injection port, and the sealing material can flow along the step structure formed by the second sub-space, the third sub-space, and the first sub-space to sequentially decrease, to facilitate filling the second space completely.

[0018] In a possible implementation of the first aspect of the present application, the vertical projection of the second sub-space on the middle plate covers the vertical projection of the third sub-space on the middle plate, and the vertical projection of the third sub-space on the middle plate covers the vertical projection of the first sub-space on the middle plate. In this structure, a step structure that decreases sequentially along the direction in which the middle plate points to the main board is formed, which is beneficial to improving the filling rate of the sealing material in the second space.

[0019] In a possible implementation of the first aspect of the present application, the side wall of the first sub-space formed by the first spacer is a first side wall, the side wall of the second sub-space formed by the second spacer is a second side wall, and the side wall of the third sub-space formed by the main plate is a third side wall. The first side wall, the second side wall, and the third side wall are flush with each other. In this structure, the volume of the second space is increased, and the filling amount of the sealing material is increased, thereby improving the sealing effect.

[0020] Exemplarily, the first side wall, the second side wall, and the third side wall are perpendicular to the main plate.

[0021] In a possible implementation of the first aspect of the present application, the end surface of the spacer is provided with a first groove, the first groove extends along the thickness direction of the electronic device and penetrates through the two side surfaces of the spacer, and the first groove and the inner wall of the frame form the second space. In this structure, the inner wall of the first groove on the end surface of the spacer and the inner wall of the frame form the second space.

[0022] Exemplarily, the end of the first spacer is provided with a first recess, and the first recess and the inner wall of the frame form the first sub-space. The edge of the main plate is provided with a third recess, and the third recess and the inner wall of the frame form the third sub-space. The end of the second spacer is provided with a second recess, and the second recess and the inner wall of the frame form the second sub-space.

[0023] In a possible implementation of the first aspect of the present application, the inner wall of the frame is provided with a first protrusion, the end of the spacer is provided with a second protrusion, the first protrusion is opposite to the end surface of the spacer, the second protrusion is opposite to the inner wall of the frame, and the second space is formed between the first protrusion and the second protrusion. In this structure, the space between the first protrusion and the second protrusion forms the second space.

[0024] Exemplarily, the first spacer is provided with a first sub-protrusion, and the first sub-protrusion and the first protrusion form the first sub-space. The edge of the main plate is provided with a third sub-protrusion, and the third sub-protrusion and the first protrusion form the third sub-space. The second spacer is provided with a second sub-protrusion, and the second sub-protrusion and the first protrusion form the second sub-space.

[0025] In a possible implementation of the first aspect of the present application, at least one set of recesses and protrusions is arranged between the end of the isolation member and the inner wall of the frame, one of the recesses and the protrusions is arranged on the isolation member, the other of the recesses and the protrusions is arranged on the frame, and the protrusion extends into the recess. In this structure, the recesses and the protrusions cooperate to form a meandering gap between the isolation member and the frame, and the gap forms the second space. Since the gap meanders, the path of air vibration propagation is extended, so that the energy of air vibration propagation can be effectively consumed to prevent air vibration propagation.

[0026] In a possible implementation of the first aspect of the present application, a plurality of sets of recesses and protrusions are arranged, and the sets of recesses and protrusions are distributed along the extension direction of the frame. In this structure, the length of the meandering gap can be further extended, so that the effect of preventing air vibration propagation can be further improved.

[0027] In a possible implementation of the first aspect of the present application, the main plate includes a plate body and a raised plate, the raised plate is arranged on the surface of the plate body, and the first isolation member is arranged on the surface of the raised plate away from the plate body. In this structure, the distance between the main plate and the display screen or the rear cover (or the distance between the main plate and the main plate support in the case of arranging the main plate support) can be reduced by the raised plate, so that the thickness of the first isolation member can be further reduced, and the width of the isolation member can be reduced.

[0028] For example, the plate body and the raised plate can be integrally formed. Alternatively, the plate body and the raised plate can also adopt a split structure, for example, the raised plate can be a metal plate or a metal gasket welded on the plate body, or a plastic plate body bonded on the plate body.

[0029] In a possible implementation of the first aspect of the present application, the surface of the middle plate facing the main plate is provided with a first boss, and the second isolation member is arranged between the first boss and the main plate. In this structure, the distance between the middle plate and the main plate can be reduced to reduce the thickness of the second isolation member, so that the width of the isolation member can be more effectively reduced.

[0030] In a possible implementation of the first aspect of the present application, the electronic device further includes an electrical connection member, the electrical connection member is located outside the first space, one end of the electrical connection member is electrically connected to the region of the main plate located outside the first space, and the other end of the electrical connection member is electrically connected to the components of the electronic device.

[0031] For example, the electrical connection member can be a flexible circuit board, and the flexible circuit board and the main plate can be electrically connected through a BTB connector. Therefore, by arranging the electrical connection member outside the first space, the conflict between the isolation member and the electrical connection member can be avoided, so that the isolation member does not affect the connection stability of the BTB connector.

[0032] In a possible implementation of the first aspect of the present application, the electronic device further includes a mainboard support, the mainboard support is arranged on the side of the mainboard away from the middle plate, and the electrical connector is arranged between the mainboard and the mainboard support; the isolation member further includes a third isolation member, the third isolation member is arranged on the side of the mainboard support away from the mainboard, and the first isolation member is in abutment with the mainboard support. In this structure, the isolation member can be further layered by the mainboard, that is, the third isolation member is arranged between the mainboard support and the display screen or the rear cover, thereby facilitating reduction of the thickness dimension of the first isolation member, so as to further reduce the width dimension of the isolation member.

[0033] In a possible implementation of the first aspect of the present application, the mainboard support includes a first sub-support and a second sub-support, the first sub-support and the second sub-support are distributed at intervals, the first isolation member and the third isolation member are arranged on the two side surfaces of the first sub-support respectively, and the electrical connector is arranged between the mainboard and the second sub-support. In this structure, the mainboard support is arranged in a split structure, that is, the first sub-support and the second sub-support, the first sub-support is arranged between the first isolation member and the third isolation member, part of the area of the first sub-support is located in the first space, to fix part of the components on the mainboard, and the second sub-support is located outside the first space, to fix the electrical connector, thereby making the overall structure more flexible.

[0034] In a possible implementation of the first aspect of the present application, the isolation member extends along the width direction of the electronic device, and the end of the isolation member is arranged opposite to the inner wall of the frame. For example, the end surface of the isolation member and the inner wall of the frame can be in abutment with each other; or, the end surface of the isolation member and the inner wall of the frame can have a gap therebetween, and the sealing is realized by the second space and the filled sealing material. In this structure, along the length direction of the electronic device, the isolation member divides the inner part of the frame into two regions, one region is used as an open rear cavity of the sound generating device, and the other region is used for mounting the battery and other components.

[0035] In a possible implementation of the first aspect of the present application, a second boss is formed on the inner wall of the frame, one end of the isolation member is arranged opposite to the inner wall of the frame, and the other end of the isolation member is arranged opposite to the second boss. For example, the end surface of the isolation member and the side wall of the second boss can be in abutment with each other; or, the two can have a gap therebetween, and the sealing is realized by the second space and the filled sealing material. In this structure, some structures inside the frame, that is, the second boss, are used as the boundary of the first space, thereby saving the material of the isolation member and facilitating cost reduction.

[0036] In a possible implementation of the first aspect of the present application, the middle plate is provided with a partitioning portion, the partitioning portion divides the middle plate into a first region and a second region, the sound generating device is arranged in the first region, and the battery is arranged in the second region. The partitioning portion includes a first portion and a second portion, the first portion is flush with the surface of the frame away from the surface of the middle plate, and the thickness of the second portion is smaller than the thickness of the first portion in the thickness direction of the electronic device. One end of the partitioning member is arranged opposite the inner wall of the frame, the other end of the partitioning member is arranged opposite the first portion, and the second portion is located outside the first space. For example, the end surface of the partitioning member and the side wall of the first portion can abut each other, or there can be a gap therebetween, and the gap is sealed by the second space and the filling sealing material.

[0037] In this way, one end of the partitioning member abuts the first portion of the partitioning portion, that is, the partitioning member can include multiple portions extending in different directions, for example, one portion of the partitioning member extends in the width direction of the electronic device and abuts the inner wall of the frame, and the other portion of the partitioning member extends in the length direction of the electronic device and abuts the first portion. Therefore, it is beneficial to increase the volume of the first space and correspondingly increase the available area on the main plate.

[0038] In a possible implementation of the first aspect of the present application, the first region includes a first sub-region and a second sub-region, the first sub-region is distributed along the length direction of the electronic device with the second region, and the second sub-region is distributed along the width direction of the electronic device with the second region. The sound generating device is arranged in the first sub-region, and the partitioning member is arranged in the second sub-region. In this structure, it is beneficial to further increase the volume of the first space and correspondingly increase the available area of the main plate.

[0039] In a possible implementation of the first aspect of the present application, the first region further includes a third sub-region, and the third sub-region is arranged on the side of the second region away from the first sub-region. The third sub-region is provided with the sound generating device, and the partitioning member is provided with two, and the second portion is located between the two partitioning members in the length direction of the electronic device. In this structure, two sound generating devices are arranged, and the first space is formed as an open back cavity corresponding to the two sound generating devices, which is beneficial to improve the audio effect of the electronic device.

[0040] In a possible implementation of the first aspect of the present application, a connecting hole is formed in the middle plate, and the connecting hole is located in the first space; and the electronic device further includes a partitioning portion arranged on the side of the middle plate away from the partitioning member. The partitioning portion and the inner wall of the frame form a third space, or the partitioning portion extends around the periphery of the connecting hole to form the third space. In the plane parallel to the middle plate, the connecting hole is located in the third space, and the battery is located outside the region where the third space is located. In this structure, the first space and the third space together serve as the open back cavity of the sound generating device, which is beneficial to further improve the audio effect of the sound generating device.

[0041] In a possible implementation of the first aspect of the present application, the isolation part is foam, back glue, glue or rubber.

[0042] In a possible implementation of the first aspect of the present application, the isolation part is foam, back glue, glue or rubber.

[0043] In a possible implementation of the first aspect of the present application, the electronic device further includes a battery cover and a display module, the battery cover and the display module are respectively located on two sides of the middle plate, and the battery cover and the display module are respectively fixedly connected to the frame. The isolation part abuts between the battery cover and the middle plate, or the isolation part abuts between the display module and the middle plate. In this case, the electronic device is a straight bar mobile phone, and the isolation part and the sound generating device can be arranged between the middle plate and the battery cover or between the middle plate and the display module.

[0044] In a possible implementation of the first aspect of the present application, the electronic device further includes a hinge mechanism, a plurality of middle frames are arranged, and two adjacent middle frames are rotationally connected through a hinge mechanism. The sound generating device and the isolation part are arranged in at least one middle frame. In this case, the electronic device is a folding screen mobile phone, and the rear cavity structure of the sound generating device can be determined according to actual design needs. For example, the open rear cavity of the sound generating device is formed by the isolation part in each middle frame. Alternatively, the sound generating device in part of the middle frames adopts the structure, and the sound generating device in part of the middle frames adopts a closed rear cavity.

[0045] In a possible implementation of the first aspect of the present application, the electronic device further includes a back cover, and the back cover is arranged on each middle frame. The isolation part abuts between the back cover and the middle plate.

[0046] In a possible implementation of the first aspect of the present application, the electronic device further includes a display screen, and the display screen is fixed to the middle frame with the isolation part. The isolation part abuts between the display screen and the middle plate. BRIEF DESCRIPTION OF DRAWINGS

[0047] FIG. 1 is a structural diagram of an electronic device according to an embodiment of the present application;

[0048] FIG. 2 is an exploded view of an electronic device according to an embodiment of the present application;

[0049] FIG. 3 is a front view of an electronic device according to an embodiment of the present application in a folded state;

[0050] FIG. 4 is a cross-sectional structural diagram of the electronic device according to FIG. 3;

[0051] FIG. 5 is an exploded view of an electronic device according to another embodiment of the present application;

[0052] FIG. 6 is an A-A cross-sectional view of FIG. 5;

[0053] FIG. 7 is an exploded view of another electronic device according to an embodiment of the present application;

[0054] FIG. 8 is a B-B sectional view of FIG. 7;

[0055] FIG. 9 is an exploded view of yet another electronic device according to an embodiment of the present application;

[0056] FIG. 10 is a C-C sectional view of FIG. 9;

[0057] FIG. 11 is a partial sectional view of an electronic device according to an embodiment of the present application, in which another main board is disposed inside the electronic device;

[0058] FIG. 12 is a partial structural view of an electronic device according to an embodiment of the present application, in which another spacer is disposed inside the electronic device;

[0059] FIG. 13 is a structural view of the spacer according to FIG. 12;

[0060] FIG. 14 is a partial structural view of an electronic device 01 according to an embodiment of the present application;

[0061] FIG. 15 is an enlarged view of a D region structure according to FIG. 14;

[0062] FIG. 16 is a partial structural view of a second space according to an embodiment of the present application;

[0063] FIG. 17 is a partial structural view of another second space according to an embodiment of the present application;

[0064] FIG. 18 is a partial structural view of yet another second space according to an embodiment of the present application;

[0065] FIG. 19 is a partial structural view of still another second space according to an embodiment of the present application;

[0066] FIG. 20 is a partial structural view of another sealing method between a spacer and a bezel according to an embodiment of the present application;

[0067] FIG. 21 is a structural view of another electronic device according to an embodiment of the present application;

[0068] FIG. 22 is an E-E sectional view of FIG. 21;

[0069] FIG. 23 is a partial sectional structural view of another electronic device according to an embodiment of the present application;

[0070] FIG. 24 is a partial sectional structural view of yet another electronic device according to an embodiment of the present application;

[0071] FIG. 25 is a partial sectional structural view of still another electronic device according to an embodiment of the present application;

[0072] FIG. 26 is a partial structural diagram of another electronic device according to an embodiment of the present application;

[0073] FIG. 27 is a F-F cross-sectional view of FIG. 26;

[0074] FIG. 28 is a structural diagram of another partition according to an embodiment of the present application;

[0075] FIG. 29 is an internal structural diagram of another middle frame according to an embodiment of the present application;

[0076] FIG. 30 is a structural diagram of another partition according to an embodiment of the present application;

[0077] FIG. 31 is a structural diagram of another partition according to an embodiment of the present application;

[0078] FIG. 32 is an exploded view of another electronic device according to an embodiment of the present application.

[0079] Reference signs: 01-electronic device; 10-foldable screen; 11-first display area; 12-second display area; 13-third display area; 20-supporting device; 100-middle frame; 110-bezel; 111-sound outlet; 112-first protrusion; 113-step portion; 113a-first surface; 113b-second surface; 114-second groove; 115-protruding portion; 120-middle plate; 120a-connection hole; 120b-injection port; 121-first area; 121a-first sub-area; 121b-second sub-area; 121c-third sub-area; 122-second area; 123-third area; 130-first protrusion; 140-second protrusion; 150-partition; 151-first portion; 152-second portion; 200-rotation shaft mechanism; 300-back cover; 400-display screen; 30-sound generating device; 30a-front cavity; 30b-rear cavity; 31-core; 31a-vibrating diaphragm; 32-housing; 33-bracket; 40-mainboard; 41-board body; 42-elevation plate; 43-third side wall; 44-electrical connector; 45-BTB connector; 50-mainboard bracket; 60-battery; 70-isolating member; 71-first groove; 72-second protrusion; 73-recessed portion; 500-first isolating member; 510-first side wall; 600-second isolating member; 610-second side wall; 700-third isolating member; 800-isolating portion; 80-display module; 90-battery cover; S1-first space; S2-second space; S21-first sub-space; S22-second sub-space; S23-third sub-space; S3-third space. DETAILED DESCRIPTION

[0080] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application.

[0081] Hereinafter, the terms "first", "second", and the like are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features.

[0082] In addition, in the present application, the orientation terms such as "upper", "lower", and the like are defined with respect to the orientation of the components shown in the drawings, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components placed in the drawings.

[0083] In the present application, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through intermediate medium.

[0084] The embodiments of the present application provide an electronic device. Specifically, the electronic device can be a portable electronic device or other types of electronic devices. For example, the electronic device can be a mobile phone, a tablet personal computer, etc., and the mobile phone can be a straight mobile phone or a folding mobile phone with a folding screen (including an inner folding screen and an outer folding screen). For the convenience of description, the electronic device is taken as a mobile phone with an inner folding screen as an example for illustration.

[0085] Please refer to FIG. 1 and FIG. 2, FIG. 1 is a structural diagram of an electronic device 01 provided by the embodiments of the present application, and FIG. 2 is an exploded view of the electronic device 01 provided by the embodiments of the present application. The electronic device 01 can include a folding screen 10 and a supporting device 20.

[0086] For the convenience of the following description, an XYZ coordinate system is established, and the width direction of the electronic device 01 is defined as the X-axis direction, the length direction of the electronic device 01 is defined as the Y-axis direction, and the thickness direction of the electronic device 01 is defined as the Z-axis direction. It can be understood that the coordinate system of the electronic device 01 can be flexibly set according to actual needs, and the present application only gives an example, and cannot be considered as a special limitation to the present application. FIG. 1 and FIG. 2 only schematically show some components included in the electronic device 01, and the actual shape, actual size, actual position and actual structure of these components are not limited by FIG. 1 and FIG. 2.

[0087] The folding screen 10 is used to display images, videos, etc. The folding screen 10 can include a first display area 11, a second display area 12, and a third display area 13 disposed between the first display area 11 and the second display area 12. When the folding screen 10 is folded, the third display area 13 is bent, and the first display area 11 and the second display area 12 are oppositely disposed. At least the third display area 13 of the folding screen 10 is made of a flexible material. The first part 151 and the second part 152 of the folding screen 10 can be made of a flexible material, can be made of a rigid material, or can be partially made of a flexible material and partially made of a rigid material. Therefore, the present application does not specially limit this.

[0088] The folding screen 10 can be an organic light-emitting diode (OLED) display screen 400, an active-matrix organic light-emitting diode (AMOLED) display screen 400, a mini light-emitting diode display screen 400, a micro light-emitting diode display screen 400, a micro organic light-emitting diode display screen 400, a quantum dot light emitting diode (QLED) display screen 400, a liquid crystal display (LCD) screen 400, etc.

[0089] The support device 20 is used to support the folding screen 10. The support device 20 can include two middle frames 100 and a rotating shaft mechanism 200 connected between the two middle frames 100. The first display area 11 and the second display area 12 of the folding screen 10 are respectively supported and attached to the two middle frames 100. The third display area 13 of the folding screen 10 is supported and attached to the rotating shaft mechanism 200. The two middle frames 100 are rotationally connected through the rotating shaft mechanism 200, so that the electronic device 01 can rotate between an unfolded state and a folded state.

[0090] In some examples, the middle frame 100 can include a frame 110 and a middle plate 120 fixed in the frame 110. For example, the middle plate 120 and the frame 110 can be fixed by welding, bonding, clamping, or threaded connection, etc. Alternatively, the middle plate 120 and the frame 110 can be integrally formed, i.e., the middle plate 120 and the frame 110 form a structural whole.

[0091] And, the first display area 11 and the second display area 12 of the folding screen 10 are fixedly connected with the two side frames 100 respectively. For example, the folding screen 10 and the side frame 110 can be fixedly connected by bonding or clamping, etc. Therefore, the application is not specially limited.

[0092] Please continue to refer to FIG. 1 and FIG. 2, FIG. 1 and FIG. 2 are both structural schematic diagrams of the electronic device 01 in an unfolded state. When the electronic device 01 is in an unfolded state, the two side frames 100 and the hinge mechanism 200 are in the same plane towards the surface of the folding screen 10, so that the folding screen 10 is completely opened, and the flatness of the folding screen 10 can be ensured. In this state, large-screen display can be realized, which can bring better user experience.

[0093] Please refer to FIG. 3 and FIG. 4, FIG. 3 is a front view of the electronic device 01 in a folded state provided by the application, and FIG. 4 is a cross-sectional structure diagram of the electronic device 01 provided by FIG. 3, wherein the cross section is parallel to the XZ plane. When the folding screen 10 terminal is in a folded state, the first display area 11 and the second display area 12 of the folding screen 10 are opposite, the third display area 13 is bent, and the two side frames 100 are protected outside the folding screen 10. The folding screen 10 shown in FIG. 1 and FIG. 2 is not visible to the user, so as to prevent the folding screen 10 from being scratched or damaged, thereby effectively protecting the folding screen 10.

[0094] In addition, please refer to FIG. 5, which is an explosion view of another view of the electronic device 01 provided by the application. The support device 20 further includes a back cover 300, which is fixed to the side of the side frame 110 away from the folding screen 10. The back cover 300, the side frame 110 and the folding screen 10 jointly enclose the inner cavity of the electronic device 01, and the middle plate 120 is arranged in the inner cavity, and the inner cavity can accommodate the components of the electronic device 01.

[0095] For example, the components can be a mainboard 40, a control chip (such as a system on chip, SOC), a graphics processing unit (GPU), a camera module, a sound device 30 and a battery 60, etc. These components are electrically connected to each other through the mainboard 40, thereby realizing different functions of the electronic device 01.

[0096] In some embodiments, the electronic device 01 described above can also include a display screen 400 (may also be referred to as an outer screen or a secondary screen), which is a flat screen, i.e., the display screen 400 cannot be bent. The display screen 400 is arranged on the side of the frame 110 away from the folding screen 10, i.e., the display screen 400 is arranged on one of the two middle frames 100, and the rear cover 300 is arranged on the other of the two middle frames 100.

[0097] When the electronic device 01 is in a folded state (as shown in FIG. 4), the image can be displayed by the display screen 400 described above, and the overall volume of the electronic device 01 in the folded state is relatively small, so it is convenient for single-handed operation of the electronic device 01, so that the electronic device 01 can be suitable for different use scenarios, and it is beneficial to improve the user's experience.

[0098] On this basis, please continue to refer to FIG. 5, the sound generating device 30 can be used to realize the audio playback of the electronic device 01, for example, the sound generating device 30 can be a loudspeaker or a receiver. At least one sound generating device 30 can be arranged in each of the two middle frames 100 of the electronic device 01, for example, one sound generating device 30 can be arranged in the middle frame 100 provided with the rear cover 300, and two sound generating devices 30 can be arranged in the middle frame 100 provided with the display screen 400. In the following embodiments, the middle frame 100 provided with the display screen 400 is taken as an example for description.

[0099] Please refer to FIG. 6, which is an A-A cross-sectional view of FIG. 5. The sound generating device 30 described above can include a shell 32 and a core 31 arranged in the shell 32, and the core 31 is provided with a diaphragm 31a, which divides the cavity inside the shell 32 into two independent sound cavities, i.e., a front cavity 30a and a rear cavity 30b. The front cavity 30a is in communication with the outside through the sound hole 111 arranged on the middle frame 100, and when the diaphragm 31a vibrates, it can compress the air in the front cavity 30a and the rear cavity 30b, thereby realizing the emission of audio.

[0100] For example, the sound hole 111 can be formed on the frame 110, and the sound hole 111 penetrates the inner wall and the outer wall of the frame 110. In addition, the inner wall of the frame 110 and the side wall of the display screen 400 can also form a sound hole 111, etc.

[0101] Among them, the rear cavity 30b arranged inside the shell 32 is called a closed rear cavity, under this structure, the volume of the shell 32 is affected by the internal sound cavity (including the front cavity 30a and the rear cavity 30b), which leads to a larger volume of the shell 32, which is not conducive to the development of the thinness of the electronic device 01. Therefore, the sound generating device 30 can also adopt an open rear cavity structure.

[0102] Specifically, refer to FIG. 7 and FIG. 8, FIG. 7 is an exploded view of another electronic device 01 provided by the embodiment of the present application, and FIG. 8 is a B-B cross-sectional view of FIG. 7. The electronic device 01 is provided with the sound production device 30 adopting the open rear cavity as described above, which can include the inner core 31 and the support 33. The support 33 is fixed to the middle plate 120 and is fixed to the surface of the middle plate 120 away from the folding screen 10. The inner core 31 is arranged on the support 33, and the front cavity 30a is formed between the inner core 31 (i.e. the diaphragm 31a described above) and the support 33, and the front cavity 30a is in communication with the sound hole 111.

[0103] In addition, the space on the side of the diaphragm 31a away from the front cavity 30a is the space between the middle plate 120 and the display screen 400, so that the space between the middle plate 120 and the display screen 400 forms the rear cavity 30b of the sound production device 30, i.e. the open rear cavity. Under this structure, since the support 33 only forms the front cavity 30a with the inner core 31, i.e. the support 33 does not need to completely wrap the inner core 31, it is beneficial to reduce the overall volume of the sound production device 30, thereby facilitating the thinning of the electronic device 01.

[0104] However, when the sound production device 30 with the open rear cavity produces sound, the vibration of the diaphragm 31a of the sound production device during the vibration process will cause the air in the rear cavity 30b to vibrate, and in turn will cause the display screen 400 to vibrate (in the case where the sound production device 30 is arranged between the back cover 300 and the middle plate 120, the back cover 300 will vibrate), affecting the user experience.

[0105] In addition, during use by the user, the display screen 400 may be pressed, and when the display screen 400 is pressed, the volume of the space between the display screen 400 and the middle plate 120 is compressed, causing the air in the space to be compressed, which in turn causes the diaphragm 31a to vibrate, causing the sound production device 30 to produce sound and causing the problem of abnormal noise.

[0106] Based on this, in some examples, the support force on the display screen 400 can be improved by arranging some support material (e.g. foam) between the middle plate 120 and the display screen 400. Alternatively, a sealing material (e.g. point glue) is arranged along the periphery of the sound production device 30, which is used to define the range of the rear cavity 30b of the sound production device 30, thereby improving the problem of abnormal noise of the sound production device 30 caused by pressing the display screen 400.

[0107] However, the main board 40 and the battery 60 are also arranged in the middle frame 100, and the main board 40 and the battery 60 can be distributed in the length direction (i.e., the Y-axis direction) of the electronic device 01. Since the main board 40, the battery 60 and the sound generating device 30 are arranged on the same side surface of the middle plate 120, the support material or the sealing material can be arranged on the surface of the battery 60 or the main board 40 facing the display screen 400, as shown by the circular shaded area in FIG. 7.

[0108] In this way, when the support material is arranged on the surface of the battery 60, the support material needs to support between the battery 60 and the display screen 400, so that the battery 60 is extruded. After the battery 60 is charged and discharged, the battery 60 will expand, so that the relative force between the battery 60 and the support material increases, that is, the extrusion force of the support material on the battery 60 increases.

[0109] In addition, when the display screen 400 is pressed, the pressing force is also transmitted to the battery 60 through the support material. However, the battery 60 cannot withstand the extrusion of external force, so in the above case, the battery 60 can be damaged.

[0110] When the sealing material is arranged around the sound generating device 30, due to the limited internal space of the electronic device 01, this sealing method can reduce the volume of the rear cavity 30b, which is not conducive to improving the sound quality of the sound generating device 30. In addition, the sealing material needs to be arranged on the surface of the main board 40. If the volume of the rear cavity 30b surrounded by the sealing material is increased, the area occupied by the sealing material on the main board 40 will also be increased, thereby affecting the arrangement of other components.

[0111] To solve the above problems, please refer to FIG. 9 and FIG. 10, FIG. 9 is an exploded view of another electronic device 01 provided by an embodiment of the present application, and FIG. 10 is a C-C cross-sectional view of FIG. 9. The electronic device 01 includes the above-mentioned middle frame 100, the folding screen 10, the display screen 400, the rear cover 300, the main board 40, the battery 60 and the sound generating device 30.

[0112] The electronic device 01 further includes a separation piece 70, which is arranged on the middle plate 120 and on the same side surface of the middle plate 120 as the sound generating device 30, and abuts between the display screen 400 and the middle plate 120. For example, the separation piece 70 can be made of foam, adhesive, glue or rubber, or other sealing materials, so the present application does not make special limitations on this.

[0113] The separation piece 70 and the inner wall of the frame 110 form a first space S1, that is, the separation piece 70, the inner wall of the frame 110, the middle plate 120 and the display screen 400 together form the first space S1. The sound generating device 30 is located in the first space S1, and the battery 60 is located outside the first space S1.

[0114] Therefore, the isolation member 70 cooperates with the inner wall of the frame 110 to form the first space S1, i.e., the first space S1 forms an open back cavity of the sound production device 30. Since the battery 60 is located outside the first space S1, i.e., the battery 60 is outside the open back cavity of the sound production device 30, when the area corresponding to the battery 60 on the display screen 400 is pressed, the internal air compression is isolated outside the first space S1 and cannot be transmitted to the area where the sound production device 30 is located, so as to avoid the vibration of the diaphragm 31a of the sound production device 30, thereby avoiding the abnormal sound of the sound production device 30. At the same time, it is not necessary to provide a supporting material on the surface of the battery 60, thereby avoiding the extrusion of the battery 60 and reducing the risk of damage to the battery 60.

[0115] In addition, please continue to refer to FIGS. 9 and 10, the above-mentioned main board 40 can be partially arranged in the first space S1. Specifically, the above-mentioned isolation member 70 can include a first isolation member 500 and a second isolation member 600, the first isolation member 500 is arranged on the surface of the main board 40 away from the middle plate 120, i.e., the first isolation member 500 is located between the main board 40 and the display screen 400, and the second isolation member 600 is arranged between the main board 40 and the middle plate 120. That is, the isolation member 70 is arranged on the main board 40, and the isolation member 70 (i.e., the first isolation member 500 and the second isolation member 600) is arranged on both sides of the main board 40.

[0116] In this way, the size of the main board 40 can be determined based on actual needs, and is not affected by the size of the above-mentioned first space S1, and the size of the main board 40 is not limited. In addition, the first isolation member 500 and the second isolation member 600 are arranged on both sides of the main board 40, so that the main board 40 and the display screen 400 and the main board 40 and the middle plate 120 can form a seal to isolate the above-mentioned first space S1, and avoid the mutual influence between the sound production device 30 and the area where the battery 60 is located.

[0117] In addition, since the above-mentioned isolation member 70 is made of materials such as foam, back glue, glue or rubber, the material is soft and has flowability before solidification. When the thickness dimension (dimension along the Z-axis direction) is larger, the width dimension (dimension perpendicular to the extension direction and perpendicular to the Z-axis direction) will also increase accordingly. Therefore, in order to reduce the width dimension of the first isolation member 500 and the second isolation member 600, it is necessary to reduce the thickness dimension of the first isolation member 500 and the second isolation member 600.

[0118] Specifically, refer to FIG. 11, which is a partial sectional view of the internal arrangement of the electronic device 01 provided by an embodiment of the present application and another mainboard 40. The mainboard 40 can include a board body 41 and a raised plate 42 arranged on the surface of the board body 41 away from the middle plate 120, and the raised plate 42 is fixedly connected with the board body 41. For example, the two can be integrally formed; or the two can also adopt a split structure, that is, the raised plate 42 can be a metal plate or a metal gasket welded on the board body 41, and the raised plate 42 can also be a plastic plate bonded on the board body 41, etc.

[0119] The first isolation piece 500 is arranged on the surface of the raised plate 42 away from the board body 41, that is, the first isolation piece 500 abuts between the board body 41 and the display screen 400. In this structure, by arranging the mainboard 40 as a partially raised structure, the distance between the mainboard 40 and the display screen 400 is reduced, that is, the thickness dimension of the first isolation piece 500 is reduced, so that the width dimension of the first isolation piece 500 can be reduced, which is beneficial to save the space occupied on the mainboard 40.

[0120] In addition, please continue to refer to FIG. 11, the surface of the middle plate 120 facing the mainboard 40 can also be provided with a first boss 130, and the second isolation piece 600 can be arranged on the surface of the first boss 130, that is, the second isolation piece 600 abuts between the first boss 130 and the mainboard 40. That is, by the first boss 130, the distance between the middle plate 120 and the mainboard 40 is reduced, which is beneficial to reduce the width dimension of the second isolation piece 600 to save the internal space of the electronic device 01.

[0121] In order to improve the isolation and sealing performance of the above-mentioned isolation piece 70, refer to FIG. 12 and FIG. 13, FIG. 12 is a partial structure diagram of the internal arrangement of the electronic device 01 provided by an embodiment of the present application and another isolation piece 70, and FIG. 13 is a structure diagram of the isolation piece 70 provided by FIG. 12. The end of the isolation piece 70 and the inner wall of the frame 110 can form a second space S2, which can extend in the thickness direction of the electronic device 01 from the side of the display screen 400 to the side of the middle plate 120, and the second space S2 can be filled with a sealing material. For example, the sealing glue can be filled in the second space S2 by the dispensing process.

[0122] In this way, by filling the sealing material in the second space S2, the gap between the isolation piece 70 and the inner wall of the frame 110 caused by the assembly precision can be further sealed, so as to avoid the air vibration being transmitted to the first space S1 through the gap, which is beneficial to further improve the isolation and sealing performance of the isolation piece 70.

[0123] Exemplarily, a first groove 71 can be formed on the end surface of the isolation piece 70, the first groove 71 penetrates through the two side surfaces of the isolation piece 70 along the thickness direction (i.e., the Z-axis direction) of the electronic device 01, the end of the isolation piece 70 abuts against the inner wall of the frame 110, and the inner wall of the first groove 71 and the inner wall of the frame 110 enclose the second space S2.

[0124] In addition, referring to FIG. 14 and FIG. 15, FIG. 14 is a partial structure diagram of the electronic device 01 provided by the embodiment of the present application, and FIG. 15 is an enlarged diagram of the structure of area D in FIG. 14. A second groove 114 can also be formed on the inner wall of the frame 110, the second groove 114 is arranged opposite to the first groove 71, and the first groove 71 and the second groove 114 jointly form the second space S2, thereby being beneficial to increasing the volume of the second space S2, i.e., being beneficial to increasing the filling amount of the sealing material, and further being capable of improving the sealing effect.

[0125] In some examples, referring to FIG. 14 and FIG. 15, when the isolation piece 70 is arranged on the mainboard 40, i.e., the isolation piece 70 includes a first isolation piece 500 and a second isolation piece 600, the second space S2 can include a first sub-space S21, a second sub-space S22 and a third sub-space S23, the first sub-space S21 is formed between the end of the first isolation piece 500 and the inner wall of the frame 110, the second sub-space S22 is formed between the end of the second isolation piece 600 and the inner wall of the frame 110, the third sub-space S23 is formed between the edge of the mainboard 40 and the inner wall of the frame 110, and the first sub-space S21, the third sub-space S23 and the second sub-space S22 are sequentially distributed along the Z-axis direction and are in communication with each other, thereby forming the second space S2.

[0126] For example, the end surface of the first isolation piece 500, the end surface of the second isolation piece 600 and the edge of the mainboard 40 all form a groove structure, and respectively enclose the first sub-space S21, the second sub-space S22 and the third sub-space S23 with the inner wall of the frame 110, thereby forming the second space S2.

[0127] And, to further improve the sealing performance of the second space S2, the cross-sectional areas of the first sub-space S21, the third sub-space S23 and the second sub-space S22 decrease successively in the direction of the Z-axis and in the direction of the main plate 40 pointing to the middle plate 120, i.e. in the direction from top to bottom as shown in FIG. 15. Since the sealing material is filled into the second space S2 from the side of the first partition 500, the cross-sectional areas of the first sub-space S21, the third sub-space S23 and the second sub-space S22 decrease successively in the direction of the main plate 40 pointing to the middle plate 120, which is conducive to filling the second sub-space S22 first, and then filling the third sub-space S23 and the first sub-space S21 successively, so as to improve the sealing effect.

[0128] In addition, in the direction of the Z-axis, the vertical projection of the first sub-space S21 on the middle plate 120 covers the vertical projection of the third sub-space S23 on the middle plate 120, and the vertical projection of the third sub-space S23 on the middle plate 120 covers the vertical projection of the second sub-space S22 on the middle plate 120. In this way, in the direction of the main plate 40 pointing to the middle plate 120, the inner wall of the second space S2 can form a stepped structure that gradually decreases, and when the second space S2 is filled, the sealing material (i.e. sealant) can flow downward (i.e. in the direction from top to bottom as shown in FIG. 15) along the stepped structure, i.e. in the direction close to the middle plate 120, so as to improve the filling rate of the sealing material in the second space S2, reduce the risk of gaps in the second space S2 not filled with sealing material, and further improve the sealing effect of the second space S2.

[0129] In other examples, during the installation of the electronic device 01, the display screen 400 shown in FIG. 9 can be installed on the middle frame 100 first, in which case the sealing material needs to be filled into the second space S2 from the side of the middle plate 120. Therefore, referring to FIG. 16, which is a partial structure diagram of the second space S2 provided by an embodiment of the present application, the cross-sectional areas of the second sub-space S22, the third sub-space S23 and the first sub-space S21 decrease successively in the direction of the middle plate 120 pointing to the main plate 40, i.e. in the direction from bottom to top in FIG. 16, and the middle plate 120 is provided with an injection port 120b that communicates with the second space S2.

[0130] In addition, along the Z-axis direction, the vertical projection of the second sub-space S22 on the middle plate 120 covers the vertical projection of the third sub-space S23 on the middle plate 120, and the vertical projection of the third sub-space S23 on the middle plate 120 covers the vertical projection of the first sub-space S21 on the middle plate 120. In this way, along the direction of the middle plate 120 pointing to the main plate 40 (the direction from bottom to top in FIG. 16), a gradually decreasing step structure can be formed, and when the sealing material is filled through the filling port 120b on the middle plate 120, the sealing material can flow along the step structure, thereby improving the filling rate of the sealing material in the second space S2, reducing the risk of the existence of unfilled sealing material in the second space, and facilitating the improvement of the sealing effect.

[0131] On this basis, the first side wall 510 of the first sub-space S21 is formed by the first isolation piece 500, the second side wall 610 of the second sub-space S22 is formed by the second isolation piece 600, and the third side wall 43 of the third sub-space S23 is formed by the main plate 40. The first side wall 510, the second side wall 610, and the third side wall 43 together form the step structure.

[0132] In another possible example, please continue to refer to FIG. 15 and refer to FIG. 17, which is another partial structure diagram of the second space S2 provided by the embodiments of the present application. Part of the area of the first side wall 510, the second side wall 610, and the third side wall 43 can form the step structure, and the area of the first side wall 510, the second side wall 610, and the third side wall 43 that does not form the step structure can be flush with each other along the Z-axis direction.

[0133] In this way, the filling rate of the sealing material in the second space S2 can be improved, and the volume of the second space S2 can be increased to improve the filling amount of the sealing material, thereby further improving the sealing effect between the end of the isolation piece 70 and the inner wall of the frame 110.

[0134] In other possible embodiments, please refer to FIG. 18, which is another partial structure diagram of the second space S2 provided by the embodiments of the present application. The inner wall of the frame 110 is provided with a first protrusion 112, and the end of the isolation piece 70 is provided with a second protrusion 72. The first protrusion 112 is opposite to the end surface of the isolation piece 70, and the second protrusion 72 is opposite to the inner wall of the frame 110. The second space S2 is formed between the first protrusion 112 and the second protrusion 72, that is, the first protrusion 112 and the second protrusion 72 are distributed at intervals. The end surface of the isolation piece 70, the side wall of the first protrusion 112, the inner wall of the frame 110, and the side wall of the second protrusion 72 enclose the second space S2.

[0135] For example, the end of the first spacer 500, the end of the second spacer 600, and the edge of the main plate 40 shown in FIG. 17 are provided with a protruding structure to form a second protrusion 72 shown in FIG. 18, so as to cooperate with the first protrusion 112 to form the second space S2.

[0136] It can be understood that the structure of the second space S2 is not limited to the above two structures. For example, referring to FIG. 19, which is a partial structure diagram of another second space S2 provided by an embodiment of the present application, a step portion 113 can also be provided at the joint of the first protrusion 112 and the inner wall of the frame 110, the step portion 113 includes a first surface 113a and a second surface 113b, both of which are parallel to the Z-axis direction, the first surface 113a is connected with the inner wall of the frame 110, and the second surface 113b is connected with the first protrusion 112. The end surface of the second protrusion 72 is opposite to the inner wall of the frame 110, the side wall of the second protrusion 72 abuts against the first surface 113a of the step portion 113, and the end surface of the spacer 70, the side wall of the first protrusion 112, the second surface 113b of the step portion 113, and the side wall of the second protrusion 72 enclose the second space S2. That is, the end of the spacer 70 and the inner wall of the frame 110 can also be matched by other forms of concave-convex structures to enclose the second space S2. Therefore, the present application does not specially limit this.

[0137] In another possible example, referring to FIG. 20, which is a partial structure diagram of another sealing mode between the spacer 70 and the frame 110 provided by the present application. At least one set of recessed portions 73 and protruding portions 115 can be provided between the end of the spacer 70 and the inner wall of the frame 110, one of the recessed portions 73 and the protruding portions 115 is provided on the spacer 70, and the other of the recessed portions 73 and the protruding portions 115 is provided on the frame 110, and the protruding portion 115 extends into the recessed portion 73. For example, the recessed portion 73 can be a groove structure provided at the end of the spacer 70, and the protruding portion 115 can be a protruding structure provided on the inner wall of the frame 110.

[0138] In this way, the recessed portion 73 and the protruding portion 115 are matched with each other, so that the gap (i.e., the second space S2 shown in FIG. 19) between the end of the spacer 70 and the inner wall of the frame 110 forms a bent and extended gap structure. When air vibrates, the vibration propagates in the bent and extended gap, which can effectively consume the energy of vibration propagation, thereby preventing the propagation of vibration.

[0139] In addition, when the recessed part 73 and the protruding part 115 are provided in multiple groups, the length of the gap where the bending extends can be further prolonged, so that the energy loss during the vibration propagation is further improved, and the effect of preventing the air vibration from propagating is improved. In this structure, the sealing material described above is not needed to achieve the sealing and isolation of the first space S1.

[0140] In another embodiment, referring to FIG. 21 and FIG. 22, FIG. 21 is a structural diagram of another electronic device 01 provided by the embodiment, and FIG. 22 is an E-E sectional view of FIG. 21. The electronic device 01 further includes an electrical connecting member 44, one end of which is electrically connected to the area of the mainboard 40 outside the first space S1, and the other end of which is used to be electrically connected to other components. For example, the electrical connecting member 44 can be a FPC board (Flexible Printed Circuit), and the components can be the battery 60 or a circuit board arranged in other areas.

[0141] In this case, the electrical connecting member 44 and the mainboard 40 can be electrically connected through a BTB connector 45 (Board-to-board Connectors), which includes a male head and a female seat, one of which is fixed to the mainboard 40, and the other of which is fixed to the FPC board, and the two are inserted into each other to achieve the electrical connection between the FPC board and the mainboard 40.

[0142] In order to avoid affecting the FPC board and the BTB connector 45, the electrical connecting member 44 provided by the embodiment is outside the first space S1, that is, the male head or the female seat of the BTB connector 45 is fixed to the area of the mainboard 40 outside the first space S1. In this way, the isolating member 70 and the FPC board do not conflict with each other, that is, the sealing and isolating performance of the isolating member 70 is not affected, and the connection stability of the FPC board is not affected.

[0143] In addition, referring to FIG. 23, which is a partial sectional view of another electronic device 01 provided by the embodiment, the electronic device 01 can further include a mainboard support 50 arranged on the side of the mainboard 40 away from the middle plate 120, and the electrical connecting member 44 is arranged between the mainboard 40 and the mainboard support 50, so that the mainboard support 50 can limit the electrical connecting member 44 to improve the connection stability of the electrical connecting member 44 and the mainboard 40.

[0144] In this case, the isolating member 70 described above can further include a third isolating member 700 arranged on the side of the mainboard support 50 away from the mainboard 40, that is, the third isolating member 700 abuts between the display screen 400 and the mainboard support 50, and the first isolating member 500 abuts between the mainboard support 50 and the mainboard 40.

[0145] In this way, the space between the display screen 400 and the middle plate 120 in the direction of the Z axis is divided into three parts and is sealed respectively, that is, the second isolation piece 600 is arranged between the middle plate 120 and the main plate 40, the first isolation piece 500 is arranged between the main plate 40 and the main plate support 50, and the third isolation piece 700 is arranged between the main plate support 50 and the display screen 400. Thus, it is beneficial to reduce the thickness dimension of the first isolation piece 500, the second isolation piece 600, and the third isolation piece 700 in the direction of the Z axis, so as to reduce the width dimension of the isolation piece 70, and it is beneficial to save space.

[0146] It can be understood that in this case, the third isolation piece 700 and the inner wall of the frame 110 are also provided with the above-mentioned sub-space, that is, the above-mentioned second space S2 is composed of five sub-spaces (including the above-mentioned first sub-space S21, the second sub-space S22, the third sub-space S23, the sub-space formed between the third isolation piece 700 and the frame 110, and the sub-space formed between the main plate support 50 and the frame 110), and the specific structure is the same as that of the above-mentioned embodiment, and thus is not repeated here.

[0147] In addition, please refer to FIG. 24, which is a partial cross-sectional structure diagram of another electronic device 01 provided by an embodiment of the present application. The above-mentioned main plate support 50 can include a first sub-support 51 and a second sub-support 52, and the first sub-support 51 and the second sub-support 52 are distributed at intervals. The above-mentioned first isolation piece 500 and the third isolation piece 700 are arranged on the two side surfaces of the first sub-support 51 respectively, and the electrical connecting piece 44 is arranged between the main plate 40 and the second sub-support 52, that is, the main plate support 50 forms a split structure, so as to flexibly arrange the positions of the first sub-support 51 and the second sub-support 52 according to the distribution of the devices inside the electronic device 01, and it is beneficial to reduce the risk of device distribution position conflict.

[0148] In another embodiment, since the middle plate 120 is provided with the folding screen 10 away from the main plate 40, the folding screen 10 and the main plate 40 also need to be electrically connected through a flexible connecting piece (that is, an FPC plate). Therefore, please refer to FIG. 25, which is a partial cross-sectional structure diagram of another electronic device 01 provided by an embodiment of the present application. The middle plate 120 of the electronic device 01 is provided with a connecting hole 120a for penetrating the flexible connecting piece, and the connecting hole 120a is located in the above-mentioned first space S1.

[0149] To avoid air vibration being transmitted to the space between the middle plate 120 and the folding screen 10 through the connecting hole 120a, and further transmitted to the area where the battery 60 is arranged. Please continue to refer to FIG. 25, the electronic device 01 provided by the embodiment of the present application further comprises a separation part 800, which is arranged on the side of the middle plate 120 away from the sound generating device 30, that is, the separation part 800 abuts between the middle plate 120 and the folding screen 10.

[0150] The separation part 800 and the inner wall of the frame 110 form a third space S3, that is, the separation part 800, the inner wall of the frame 110, the middle plate 120 and the folding screen 10 jointly enclose the third space S3. Alternatively, the separation part 800 extends around the circumference of the connecting hole 120a to form the third space S3, that is, the separation part 800, the middle plate 120 and the folding screen 10 jointly enclose the third space S3. In the plane parallel to the middle plate 120, that is, in the XY plane, the connecting hole 120a is located in the third space S3, and the battery 60 is located outside the third space S3.

[0151] In this way, the first space S1 formed between the middle plate 120 and the display screen 400, and the third space S3 formed between the middle plate 120 and the folding screen 10, both form open back cavities of the sound generating device 30, thereby facilitating the increase of the size of the open back cavities of the sound generating device 30, so as to improve the sound quality effect of the sound generating device 30. Moreover, it is beneficial to further improve the isolation and sealing effect between the open back cavities of the sound generating device 30 and the battery 60, so as to avoid mutual influence between the two, and improve the reliability of the overall structure.

[0152] It should be noted that in other possible embodiments, the above-mentioned battery 60, main plate 40 and sound generating device 30 can also be arranged between the middle plate 120 and the folding screen 10. In this case, the separation part 70 is arranged between the middle plate 120 and the folding screen 10, and the separation part 800 is arranged between the middle plate 120 and the display screen 400. The specific structure of this embodiment is the same as that of the foregoing embodiments, and the difference between the two is only the change of the arrangement position. Therefore, this will not be described repeatedly.

[0153] Based on this, the specific structure of the separation part 70 provided by the embodiment of the present application is described in detail above, and the specific arrangement position and layout structure of the separation part 70 in the middle frame 100 of the electronic device 01 are described in detail below.

[0154] The isolation piece 70 can extend along the width direction of the electronic device 01, that is, along the X-axis direction, and the two end faces of the isolation piece 70 are respectively arranged opposite to the two inner walls of the frame 110 extending along the Y-axis direction (as shown in FIG. 21). For example, the end face of the isolation piece 70 can abut against the inner wall of the frame 110; or, there can be a gap between the end face of the isolation piece 70 and the inner wall of the frame 110 (that is, caused by assembly error), and then the sealing is realized through the second space S2 (as shown in FIGS. 15-17). The battery 60 and the sound generating device 30 are respectively located on the two sides of the isolation piece 70, that is, the area provided with the sound generating device 30 is the first space S1.

[0155] In some examples, the inner wall of the frame 110 can be provided with a convex structure based on design needs. For example, referring to FIGS. 26 and 27, FIG. 26 is a partial structure diagram of another electronic device 01 provided by an embodiment of the present application, and FIG. 27 is a F-F cross-sectional view of FIG. 26. The second boss 140 can be arranged on the inner wall of the frame 110, which can be used to limit some devices and form support for the display screen 400. One end face of the isolation piece 70 can be arranged opposite to the side wall of the second boss 140, and the other end face of the isolation piece 70 is arranged opposite to the inner wall (the other opposite inner wall) of the frame 110. For example, the end of the isolation piece 70 can abut against the second boss 140; or, there can be a gap between the two, and then the sealing is realized through the second space S2.

[0156] In addition, still referring to FIGS. 26 and 27, in order to limit the battery 60, the partition 150 can be arranged on the middle plate 120, which divides the surface of the middle plate 120 into the first area 121 and the second area 122. The sound generating device 30 is arranged in the first area 121, and the battery 60 is arranged in the second area 122. In this structure, the partition 150 can define an area for placing the battery 60, so as to fix the battery 60 and avoid movement of the battery 60.

[0157] In another possible example, referring to FIG. 28, which is a structure diagram of another partition 150 provided by an embodiment of the present application. The partition 150 can include a first part 151 and a second part 152. The first part 151 is flush with the surface of the frame 110 away from the surface of the middle plate 120, that is, the surface of the frame 110 and the first part 151 are in the same plane, and the plane is parallel to the XY plane. In the Z-axis direction, the thickness dimension of the second part 152 is smaller than that of the first part 151. That is, the first part 151 can form support for the display screen 400, and the second part 152 has a gap with the display screen 400.

[0158] The first portion 151 can support the display screen 400 shown in FIG. 27, so as to further reduce the risk of pressing the display screen 400 to cause the battery 60 to be squeezed. The gap between the second portion 152 and the display screen 400 can be used to arrange the electrical connector 44, for example, the electrical connector 44 used to connect the battery 60 and the mainboard 40.

[0159] Based on this, the extension direction of the isolation member 70 can be flexibly set according to requirements. For example, referring to FIG. 28, part of the isolation member 70 can extend along the X-axis direction, and part of the isolation member 70 can extend along the Y-axis direction. One end of the isolation member 70 is arranged opposite to the inner wall of the frame 110, and the other end of the isolation member 70 can be arranged opposite to the side wall of the first portion 151 of the partition portion 150, for example, the two can abut each other, or there can be a gap between the two. In addition, the end of the isolation member 70 and the first portion 151 of the partition portion 150 can also be provided with the second space S2, so as to ensure the sealing performance.

[0160] In this way, it is beneficial to increase the available area of the mainboard 40 in the first space S1, so as to arrange more components, so as to avoid the waste of space on the mainboard 40, and improve the integration of components inside the electronic device 01, and further facilitate the thinning of the electronic device 01.

[0161] It can be understood that the extension direction of the isolation member 70 is not unique, and the extension direction of the isolation member 70 can form a certain angle with the X-axis direction or the Y-axis direction, that is, the isolation member 70 can extend obliquely, and the specific extension direction can be flexibly changed based on the distribution of components on the mainboard 40. For example, the isolation member 70 can be arranged at the gap between adjacent components on the mainboard 40, so that the isolation member 70 does not affect the distribution of different components on the mainboard 40, and is beneficial to save space.

[0162] In other embodiments, referring to FIG. 29, FIG. 29 is a schematic structural diagram of another inner structure of the middle frame 100 provided by the embodiments of the present application. Two sound generating devices 30 can be arranged in the middle frame 100. One sound generating device 30 (referred to as a first sound generating device 30a) is arranged at the top along the Y-axis direction in the middle frame 100, and the other sound generating device 30 (referred to as a second sound generating device 30b) is arranged at the bottom along the Y-axis direction in the middle frame 100.

[0163] The first sound generating device 30a can adopt the open rear cavity structure, and the second sound generating device 30b can adopt the closed rear cavity structure. Alternatively, the first sound generating device 30a and the second sound generating device 30b can both adopt the open rear cavity structure.

[0164] Exemplarily, the battery 60 is arranged in the Y-axis direction, and the two sides of the battery 60 are provided with the above-mentioned partition 150 to limit the area for fixing the battery 60. That is, the two partitions 150 on both sides of the battery 60 divide the middle plate 120 into a first area 121, a second area 122 and a third area 123 arranged in sequence along the Y-axis direction. The first sound generating device 30a and the main plate 40 are arranged in the first area 121, the battery 60 is arranged in the second area 122, and the second sound generating device 30b is arranged in the third area 123.

[0165] Corresponding to the first area 121 and the second area 122, the above-mentioned partition 70 is arranged, that is, the first sound generating device 30a and the second sound generating device 30b are respectively isolated to form a corresponding first space S1, so that the first sound generating device 30a and the second sound generating device 30b both form the above-mentioned open rear cavity structure, and are isolated from the battery 60 to avoid mutual influence.

[0166] It can be understood that the structure of the partition 70 corresponding to the first sound generating device 30a and the second sound generating device 30b is the same as that of the above-mentioned embodiment, and therefore, the description is not repeated. In addition, a circuit board can also be arranged in the second area 122, and the circuit board and the main plate 40 can be electrically connected through the electrical connector 44, and the electrical connector 44 extends through the second part 152 of the partition 150.

[0167] In another example, please refer to FIG. 30, which is a structure diagram of another partition 150 provided by the embodiment of the application, which divides the middle plate 120 into a first area 121 and a second area 122, and the battery 60 is arranged in the second area 122. The first area 121 includes a first sub-area 121a and a second sub-area 121b, the first sub-area 121a is arranged along the Y-axis direction with the second area 122, and the second sub-area 121b is arranged along the X-axis direction with the second area 122.

[0168] In the case where the sound generating device 30 is provided with one, the sound generating device 30 can be arranged in the first sub-area 121a, and the partition 70 can be arranged in the second sub-area 121b. In this structure, it is beneficial to improve the size of the first space S1, that is, to increase the size of the open rear cavity of the sound generating device 30, thereby improving the sound quality of the sound generating device 30. In addition, the size of the main plate 40 can be increased, thereby increasing the available area of the main plate 40 to provide more space for components.

[0169] In the case that the sound production device 30 is provided with two (i.e. the first sound production device 30a and the second sound production device 30b), please refer to FIG. 31, which is a structural diagram of another partition 150 provided by the embodiment of the present application. The first region 121 can further include a third sub-region 121c, which is located on the side of the second region 122 away from the first sub-region 121a, i.e. the first sub-region 121a, the second region 122 and the third sub-region 121c are sequentially distributed along the Y-axis direction. The first sound production device 30a can be arranged in the first sub-region 121a, the second sound production device 30b can be arranged in the third sub-region 121c, and the main board 40 can be extended from the first sub-region 121a into the third sub-region 121c.

[0170] It should be noted that in the above FIG. 27, FIG. 29, FIG. 30 and FIG. 31, the regions enclosed by the dashed line frame correspond to the first region 121 (including the first sub-region 121a, the second sub-region 121b and the third sub-region 121c) and the second region 122 formed by the partition 150 separating the middle plate 120.

[0171] In addition, in the case that the first sound production device 30a and the second sound production device 30b are both open back cavities, the above-mentioned partition 70 is arranged corresponding to the first sound production device 30a and the second sound production device 30b to form the first space S1 corresponding to the first sound production device 30a and the second sound production device 30b. In addition, along the Y-axis direction, the second part 152 of the partition 150 is located between the two partitions 70.

[0172] Exemplarily, please continue to refer to FIG. 31, the two partitions 70 can be arranged in the second sub-region 121b, both of which extend along the X-axis direction, and the two partitions 70 are distributed along the Y-axis direction, and the second part 152 of the partition 150 is located in the region between the two partitions 70, so that the electrical connecting piece 44 used to connect the battery 60 and the main board 40 can extend to both sides of the partition 150 through the second part 152, thereby realizing the electrical connection between the battery 60 and the main board 40.

[0173] Alternatively, only one of the two partitions 70 can be arranged in the second sub-region 121b. Alternatively, neither of the two partitions 70 is arranged in the second sub-region 121b, but they are arranged in the first sub-region 121a and the third sub-region 121c respectively. Therefore, the present application does not specially limit the specific arrangement position of the two partitions 70.

[0174] On this basis, the electronic device 01 includes two middle frames 100, and at least one sound production device 30 can be arranged in each middle frame 100. Each sound production device 30 can adopt the open rear cavity, that is, the isolation piece 70 and the isolation part 800 are arranged corresponding to each sound production device 30. Alternatively, part of the sound production devices 30 can adopt the open rear cavity structure, and part of the sound production devices 30 can adopt the closed rear cavity structure (as shown in FIG. 21). Therefore, the present application does not specially limit this.

[0175] In other embodiments, the electronic device 01 can also include multiple middle frames 100 and multiple rotation shaft mechanisms 200 shown in FIGS. 2 and 3. For example, three middle frames 100 are arranged, and two rotation shaft mechanisms 200 are arranged, and the adjacent two middle frames 100 are rotationally connected by one rotation shaft mechanism 200. When the electronic device 01 is in a folded state, the two middle frames 100 on both sides can be located on both sides of the middle middle frame 100 along the Z-axis direction, or the two middle frames 100 on both sides can be located on the same side of the middle middle frame 100 along the Z-axis direction and stacked with each other.

[0176] In this case, the sound production device 30 and the corresponding isolation piece 70 and isolation part 800 can be arranged in each of the multiple middle frames 100, and the specific structure and arrangement position are the same as those in the above embodiments. Therefore, the present application does not specially limit the number, structure and position of the sound production devices 30 arranged in the multiple middle frames 100.

[0177] In other possible embodiments, the electronic device 01 provided by the embodiments of the present application can also be a straight phone, that is, the electronic device 01 cannot be folded and has a nearly rectangular plate structure. Please refer to FIG. 32, which is an exploded view of another electronic device 01 provided by the embodiments of the present application.

[0178] Specifically, the electronic device 01 includes the above-mentioned middle frame 100, battery cover 90 and display module 80, and the battery cover 90 and the display module 80 are stacked with the middle plate 120 and fixedly connected with the frame 110. The sound production device 30, the main board 40 and the battery 60 can be arranged in the middle frame 100. Among them, the sound production device 30 can be arranged between the middle plate 120 and the battery cover 90, or between the middle plate 120 and the display module 80. The sound production device 30 can be arranged one or two.

[0179] In the case that the sound production device 30 adopts the open rear cavity, the isolation piece 70 and the isolation part 800 (not shown in FIG. 32) corresponding to the sound production device 30 can be arranged, and the specific structure is the same as that in the above embodiments. Therefore, the present application does not repeat the description.

[0180] In the description of the present specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in an appropriate manner.

[0181] The above description is merely illustrative of the application and is not intended to limit the scope of the application. Any changes or modifications that can be made to the application in accordance with the principles of the application should also be included within the scope of the application. Accordingly, the scope of the application should be determined by the scope of the claims.

Claims

1. An electronic device, comprising: The application relates to an electronic device, comprising: a middle frame comprising a frame and a middle plate fixed in the frame; a sound device located on one side of the middle plate; a partition located on the same side of the middle plate as the sound device; the partition and the inner wall of the frame form a first space, and the sound device is located in the first space; a battery located on the same side of the middle plate as the partition and outside the first space; a main plate located on the same side of the middle plate as the battery and partially outside the first space.

2. The electronic device of claim 1, wherein, The partition comprises a first partition and a second partition; the first partition is arranged on the surface of the main plate away from the middle plate; and the second partition is arranged between the main plate and the middle plate.

3. The electronic device of claim 2, wherein, The end of the partition and the inner wall of the frame form a second space, and the second space is filled with sealing material.

4. The electronic device of claim 3, wherein, The end of the first partition and the inner wall of the frame form a first sub-space; the end of the second partition and the inner wall of the frame form a second sub-space; the edge of the main plate and the inner wall of the frame form a third sub-space; the first sub-space, the third sub-space and the second sub-space are sequentially arranged along the thickness direction of the electronic device and are in communication with each other to form the second space.

5. The electronic device of claim 4, wherein, The cross-sectional area of the first sub-space, the third sub-space and the second sub-space decreases in sequence along the direction from the main plate to the middle plate.

6. The electronic device of claim 5, wherein, The vertical projection of the first sub-space on the middle plate covers the vertical projection of the third sub-space on the middle plate, and the vertical projection of the third sub-space on the middle plate covers the vertical projection of the second sub-space on the middle plate.

7. The electronic device of claim 4, wherein, The cross-sectional area of the second sub-space, the third sub-space and the first sub-space decreases in sequence along the direction from the middle plate to the main plate; and an injection port is arranged on the middle plate and is in communication with the second space.

8. The electronic device of claim 7, wherein, The vertical projection of the second sub-space on the middle plate covers the vertical projection of the third sub-space on the middle plate, and the vertical projection of the third sub-space on the middle plate covers the vertical projection of the first sub-space on the middle plate.

9. The electronic device of any of claims 4-8, wherein, The side wall of the first sub-space formed by the first partition is a first side wall; the side wall of the second sub-space formed by the second partition is a second side wall; and the side wall of the third sub-space formed by the main plate is a third side wall. The partial area of the first side wall, the partial area of the second side wall and the partial area of the third side wall are flush with each other.

10. The electronic device of any of claims 3-9, wherein, A first groove is arranged on the end surface of the partition and extends along the thickness direction of the electronic device and penetrates through the two side surfaces of the partition; and the first groove and the inner wall of the frame form the second space.

11. The electronic device of any of claims 3-9, wherein, A first protrusion is arranged on the inner wall of the frame; a second protrusion is arranged on the end of the partition; the first protrusion is opposite to the end surface of the partition; the second protrusion is opposite to the inner wall of the frame; and the first protrusion and the second protrusion form the second space.

12. The electronic device of claim 2, wherein, At least one set of recesses and protrusions are arranged between the end of the isolation piece and the inner wall of the frame, one of the recesses and the protrusions is arranged on the isolation piece, and the other of the recesses and the protrusions is arranged on the frame, and the protrusion extends into the recess.

13. The electronic device of claim 12, wherein, The recesses and the protrusions are arranged in multiple sets, and the multiple sets of the recesses and the protrusions are distributed along the extension direction of the frame.

14. The electronic device of any of claims 2-13, wherein, The main plate comprises a plate body and a raised plate, the raised plate is arranged on the surface of the plate body, and the first isolation piece is arranged on the surface of the raised plate away from the plate body.

15. The electronic device of any of claims 2-14, wherein, The surface of the middle plate facing the main plate is provided with a first boss, and the second isolation piece is arranged between the first boss and the main plate.

16. The electronic device of any of claims 1-15, wherein, The electronic device further comprises an electrical connector, the electrical connector is located outside the first space, one end of the electrical connector is electrically connected to the region of the main plate located outside the first space, and the other end of the electrical connector is electrically connected to the components of the electronic device.

17. The electronic device of claim 16, wherein, The electronic device further comprises a main plate support, the main plate support is arranged on the side of the main plate away from the middle plate, and the electrical connector is arranged between the main plate and the main plate support; the isolation piece further comprises a third isolation piece, the third isolation piece is arranged on the side of the main plate support away from the main plate, and the first isolation piece abuts against the main plate support.

18. The electronic device of claim 17, wherein, The main plate support comprises a first sub-support and a second sub-support, the first isolation piece and the third isolation piece are respectively arranged on the two side surfaces of the first sub-support, and the electrical connector is arranged between the main plate and the second sub-support.

19. The electronic device of any of claims 1-18, wherein, The isolation piece extends along the width direction of the electronic device, and the end of the isolation piece is arranged opposite to the inner wall of the frame.

20. The electronic device of claim 19, wherein, A second boss is formed on the inner wall of the frame, one end of the isolation piece abuts against the inner wall of the frame, and the other end of the isolation piece is arranged opposite to the second boss.

21. The electronic device of any of claims 1-18, wherein, The middle plate is provided with a partitioning portion, the partitioning portion divides the middle plate into a first region and a second region, the sound generating device is arranged in the first region, and the battery is arranged in the second region. The partitioning portion comprises a first part and a second part, the surface of the first part away from the middle plate is flush with the surface of the frame, in the thickness direction of the electronic device, the thickness of the second part is smaller than the thickness of the first part, one end of the isolation piece is arranged opposite to the inner wall of the frame, the other end of the isolation piece is arranged opposite to the first part, and the second part is located outside the first space.

22. The electronic device of claim 21, wherein, The first region comprises a first sub-region and a second sub-region, the first sub-region and the second region are distributed along the length direction of the electronic device, and the second sub-region and the second region are distributed along the width direction of the electronic device; the sound generating device is arranged in the first sub-region, and the isolation piece is arranged in the second sub-region.

23. The electronic device of claim 22, wherein, The first region further comprises a third sub-region, and the third sub-region is arranged on the side of the second region away from the first sub-region. The third sub-region is provided with the sound generating device, the isolating piece is provided with two, along the length direction of the electronic device, the second part is located between the two isolating pieces.

24. The electronic device of any of claims 1-23, wherein, The middle plate is provided with a connecting hole in the first space; the electronic device further comprises an isolating part, which is arranged on the side of the middle plate away from the isolating piece; The isolating part and the inner wall of the frame form a third space; or the isolating part extends around the connecting hole to form the third space; in the plane parallel to the middle plate, the connecting hole is located in the third space, and the battery is located outside the area where the third space is located.

25. The electronic device of claim 24, wherein, The isolating part is foam, back glue, glue or rubber.

26. The electronic device of any of claims 1-25, wherein, The isolating piece is foam, back glue, glue or rubber.

27. The electronic device of any of claims 1-26, wherein, The electronic device further comprises a battery cover and a display module, the battery cover and the display module are respectively located on both sides of the middle plate, and the battery cover and the display module are respectively fixedly connected with the frame; The isolating piece abuts between the battery cover and the middle plate; or the isolating piece abuts between the display module and the middle plate.

28. The electronic device of any of claims 1-26, wherein, The electronic device further comprises a hinge mechanism, the middle frame is provided with a plurality of, and adjacent two middle frames are rotationally connected through a hinge mechanism; at least one middle frame is provided with the sound generating device and the isolating piece.

29. The electronic device of claim 28, wherein, The electronic device further comprises a rear cover, the rear cover is arranged on each middle frame, and the isolating piece abuts between the rear cover and the middle plate.

30. The electronic device of claim 28, wherein, The electronic device further comprises a display screen, the display screen is fixed on the middle frame provided with the isolating piece, and the isolating piece abuts between the display screen and the middle plate.

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