An electronic device

Abstract

The present application provides an electronic device, which relates to the technical field of terminal devices. It is used to solve the problem that the camera module of the existing electronic device occupies a large space on the mainboard, affecting the layout of other electronic devices. The above-mentioned electronic device includes a housing, a mainboard, a first device, a bracket, a second device, and a limiting structure. The mainboard is fixedly arranged in the housing. The first device is arranged on the mainboard. The bracket is fixedly arranged on the mainboard, and a part of the bracket is spaced apart from the mainboard to form a accommodating space, and the accommodating space is used to accommodate the first device; the surface of the bracket away from the accommodating space and away from the mainboard forms a supporting surface. The second device is arranged on the supporting surface. The limiting structure is arranged between the bracket and the mainboard, and the limiting structure can limit the movement of the bracket relative to the mainboard in at least one direction. The electronic device provided by the present application has more layout space, which is conducive to the distribution of electronic devices on the mainboard.

Description

Technical Field

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

[0002] With the continuous development of technology, the functions of electronic devices (such as mobile phones) are becoming more and more abundant. For example, a camera module is provided inside the electronic device to have a shooting function. However, inside the existing electronic device, the camera module will occupy a large space on the main board, thus affecting the layout of other electronic devices inside the electronic device. Summary of the invention

[0003] An embodiment of the present application provides an electronic device for solving the problem that a camera module of an existing electronic device occupies a large space and affects the layout of other electronic devices.

[0004] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0005] An embodiment of the present application provides an electronic device, which includes a housing, a mainboard, a first component, a bracket, a second component, and a limiting structure. The mainboard is fixedly disposed in the housing. The first component is disposed on the mainboard. The bracket is fixedly disposed on the mainboard, and a partial area of ​​the bracket is spaced apart from the mainboard to form a receiving space, wherein the receiving space is used to receive the first component; a surface of the bracket away from the receiving space and away from the mainboard forms a supporting surface. The second component is disposed on the supporting surface. The limiting structure is disposed between the bracket and the mainboard, and the limiting structure can limit the movement of the bracket relative to the mainboard in at least one direction.

[0006] The electronic device provided in the embodiment of the present application forms a storage space by spacing a part of the area on the bracket from the mainboard, and some first devices set on the mainboard can be accommodated in the storage space, such as a BTB connector or a control chip. In addition, a second device, such as a camera module, can be set on the support surface of the bracket away from the storage space. If the camera module is set on the surface of the bracket away from the storage space, the camera module will not occupy the space on the mainboard, so that there is more space on the mainboard for setting the first device, which is beneficial to the distribution of electronic devices.

[0007] In addition, a limiting structure is provided between the bracket and the mainboard. The limiting structure can limit the movement of the bracket relative to the mainboard in at least one direction. In this way, the bracket can be pre-limited to prevent the bracket from moving relative to the mainboard during installation and fixing, thereby reducing the difficulty of the subsequent fixing process of the bracket and improving the process accuracy.

[0008] In a possible implementation of the present application, the limiting structure can limit the bracket from moving in a direction away from the mainboard, and can limit the bracket from rotating in a plane parallel to the mainboard. In this way, on the one hand, the bracket can be prevented from being separated from the mainboard, and on the other hand, the bracket can be prevented from being misaligned relative to the mainboard, thereby helping to reduce the overall installation difficulty during the installation process and improve the installation accuracy.

[0009] In a possible implementation of the present application, the limiting structure includes a limiting protrusion and a limiting shell. The limiting protrusion is fixed on the bracket. The limiting shell is fixed on the main board, and there is a limiting space inside the limiting shell. The limiting shell is provided with an opening connected to the limiting space, and the limiting protrusion is inserted into the limiting space through the opening in a direction parallel to the main board. That is, the limiting shell can limit the limiting protrusion in a direction away from the main board, and limit the rotation of the limiting protrusion in a plane parallel to the main board. In this way, the limiting protrusion can only move in the direction of insertion into the limiting space, that is, the limiting protrusion is inserted into the limiting shell along this direction during installation, so that the limiting shell limits the direction other than the insertion direction, that is, the bracket is effectively limited.

[0010] In a possible implementation of the present application, the limiting shell includes a first wall plate, a second wall plate and a third wall plate, the first wall plate is arranged at intervals with the main board, the second wall plate and the third wall plate are respectively arranged on both sides of the first wall plate, and the distribution wind direction of the second wall plate and the third wall plate is perpendicular to the direction in which the limiting protrusion is inserted into the limiting space. The second wall plate and the third wall plate are both fixed between the first wall plate and the main board. The first wall plate, the second wall plate, the third wall plate and the main board together enclose the limiting space, and the same side edge of the first wall plate, the second wall plate and the third wall plate forms an opening. In this way, when the limiting protrusion is inserted into the limiting space, the limiting protrusion is located between the first wall plate and the main board, that is, the first wall plate can limit the limiting protrusion in a direction away from the main board. At the same time, the limiting protrusion is located between the second wall plate and the third wall plate, that is, the second wall plate and the third wall plate can limit the limiting protrusion in a plane parallel to the main board, for example, the rotation in a plane parallel to the main board is limited.

[0011] In a possible implementation of the present application, the limiting shell further includes a fourth wall plate, which is disposed on a side of the first wall plate away from the opening, and the first wall plate, the second wall plate, and the third wall plate are all fixedly connected to the fourth wall plate. In this way, when the limiting protrusion is inserted into the limiting space through the opening, the limiting protrusion can abut against the fourth wall plate, that is, the fourth wall plate can limit the limiting protrusion along the direction in which the limiting protrusion is inserted into the limiting space, which is conducive to further improving the reliability of the overall structure.

[0012] In a possible implementation of the present application, a support plate is provided on the outer wall of the limit shell, and the support plate is fixed to the main board. In this structure, the contact area between the limit shell as a whole and the main board can be increased by the support plate, thereby facilitating the fixing strength when the limit shell and the main board are fixed to each other, and further improving the reliability of the overall structure.

[0013] In a possible implementation of the present application, the limiting protrusion and the bracket are integrally formed, that is, the limiting protrusion and the bracket form an integral structural member, which is conducive to improving the reliability of the overall structure.

[0014] In a possible implementation of the present application, a plurality of first components are provided, and the electronic device further includes at least one shielding cover, the shielding cover is provided on part of the first component, and the limiting shell is fixedly connected to an adjacent shielding cover. In this way, the limiting shell is fixed to the shielding cover, and since the shielding cover is fixed to the mainboard, it is beneficial to further improve the fixing strength between the limiting shell and the mainboard.

[0015] For example, the support plate may extend to an adjacent shielding cover in a direction parallel to the main board, and may be fixedly connected to the shielding cover by welding, clamping, bonding, etc. Alternatively, the limiting shell and the shielding cover may form an integral structure, that is, the two constitute a structural component.

[0016] In a possible implementation of the present application, the limiting structure includes a clamping protrusion and a clamping shell. The clamping protrusion is fixed on the bracket. The clamping shell includes a bottom plate and two elastic arms, the bottom plate is fixed on the main board, the two elastic arms are respectively fixed on both sides of the bottom plate in a direction parallel to the main board, the clamping protrusion extends between the two elastic arms, and the two elastic arms clamp the clamping protrusion. In this way, the clamping protrusion is clamped by the two elastic arms, and the clamping force of the two elastic arms is used to limit the clamping protrusion, so that the bracket can be limited.

[0017] In a possible implementation of the present application, the elastic arm includes a first plate body, a second plate body, and a third plate body connected in sequence, the two first plate bodies are fixed to the bottom plate and extend in a direction away from the main board; the two second plate bodies are approaching each other and extending in a direction away from the bottom plate; the two third plate bodies are extending in a direction away from each other and away from the bottom plate. That is, a protrusion is formed at the connection between the second plate body and the third plate body, and the distance between the two protrusions is smaller than the distance between the two first plate bodies. In this way, when the snap-on protrusion is inserted between the two elastic arms, the snap-on protrusion squeezes the two elastic arms, that is, the two protrusions clamp the snap-on protrusion, so that the snap-on protrusion and the snap-on shell are snap-on fixed to each other.

[0018] In a possible implementation of the present application, grooves are provided on the surfaces of the elastic arms on both sides of the clamping protrusion, and the connection between the second plate and the third plate of the elastic arm forms the above-mentioned protruding point, which extends into the corresponding groove. In this way, when the clamping protrusion and the clamping shell are mutually clamped, the connection point between the second plate and the third plate, that is, the above-mentioned protruding point, extends into the corresponding groove to achieve relative clamping, which is conducive to reducing the elastic deformation of the elastic arm, so as to avoid the elastic arm being in a state of large elastic deformation for a long time, and is conducive to extending the service life of the clamping shell.

[0019] In a possible implementation of the present application, the snap-on shell further includes a limiting plate, which is fixed to the bottom plate, and is located between the two elastic arms along the distribution direction of the two elastic arms. When the snap-on protrusion is snapped between the two elastic arms, the limiting plate is located on the side of the snap-on protrusion away from the bracket. Under this structure, the limiting plate can further limit the snap-on protrusion, that is, limit the snap-on protrusion in a direction parallel to the mainboard and perpendicular to the distribution direction of the two elastic arms, thereby preventing the snap-on protrusion and the snap-on shell from moving relative to each other along this direction, thereby preventing the bracket and the snap-on protrusion from separating from each other.

[0020] In a possible implementation of the present application, the clamping protrusion and the bracket are integrally formed. That is, the clamping protrusion and the bracket form an integral structural member, which is conducive to improving the reliability of the overall structure.

[0021] In a possible implementation of the present application, a plurality of first components are provided, and the electronic device further includes at least one shielding cover, which is provided on the first component, and the snap-on shell is fixedly connected to an adjacent shielding cover. In this way, the snap-on shell is fixed to the shielding cover, and since the shielding cover is fixed to the mainboard, it is beneficial to further improve the fixing strength between the snap-on shell and the mainboard.

[0022] For example, the bottom plate may extend to an adjacent shielding cover in a direction parallel to the main board, and may be fixedly connected to the shielding cover by welding, clamping, bonding, etc. Alternatively, an integral structure may be formed between the clamping shell and the shielding cover, that is, the two constitute a structural component as a whole.

[0023] In a possible implementation of the present application, the bracket includes a first part and a second part, the first part is fixedly connected to the second part, and is distributed in a direction parallel to the mainboard. The first part is arranged in an area on the mainboard where the first device is not arranged, and a limiting structure is arranged between the first part and the mainboard. An accommodating space is formed between the second part and the mainboard, and the supporting surface is located in the second part. In this way, the second part of the bracket is used to support the second device and does not need to occupy space on the mainboard. The first part is used to support the second part, and the first part is arranged in an area on the mainboard where the first device is not arranged, so that the bracket does not affect the arrangement of the first device, and can support the second device, thereby facilitating the distribution of electronic devices.

[0024] In a possible implementation of the present application, the housing includes a frame and a middle plate, the middle plate is fixed in the frame, and the mainboard is fixed on the middle plate; the mainboard has a first edge, the bracket is arranged at the first edge, and the first part and the second part of the bracket are sequentially distributed along the first edge, and the limiting structure is arranged on the side of the first part away from the first edge. A first convex bulge and a first card groove are arranged between the side wall of the bracket close to and extending along the first edge and the inner wall of the frame, one of the first convex bulge and the first card groove is arranged on the inner wall of the frame, and the other of the first convex bulge and the first card groove is arranged on the inner wall of the frame, and the first convex bulge extends into the first card groove. Under this structure, the first convex bulge and the first card groove can further limit the movement of the bracket relative to the mainboard along the extension direction of the first edge, so as to further limit the bracket. In addition, since the limiting structure is located on the side of the first part away from the first edge, that is, the first part of the bracket is arranged between the frame and the limiting structure, it is conducive to further limiting the bracket to improve the limiting reliability of the bracket.

[0025] In a possible implementation of the present application, a second convex bump is provided on the mainboard, the second convex bump is provided on the surface of the bracket facing the mainboard, a second card slot is provided on the first edge of the mainboard, and the second convex bump extends into the second card slot. That is, while a first convex bump and a first card slot are provided between the bracket and the frame, a second convex bump and a second card slot are also provided between the bracket and the mainboard. By providing multiple limiting points for the bracket, the limiting reliability of the bracket can be further improved.

[0026] In a possible implementation of the present application, a third slot is further provided on the first edge, the third slot is arranged corresponding to the first slot, the first convex bump extends into the first slot, and the first convex bump extends into the third slot. In this way, the first convex bump extends into the first slot and also into the third slot, that is, a limit is formed between the frame and the bracket, and a limit is also formed between the frame and the mainboard, which is conducive to further improving the reliability of the overall structure.

[0027] In a possible implementation of the present application, the bracket includes a reinforcing rib, which is arranged between the surface of the first part away from the mainboard and the side wall of the second part facing the first part. Under this structure, the connection strength of the connection between the first part and the second part can be improved, which is conducive to improving the strength of the overall structure.

[0028] In a possible implementation of the present application, the bracket further includes a third part, and the first part, the second part and the third part are sequentially distributed along the first edge, and the third part is fixedly connected to the mainboard. That is, the second part is supported by the first part and the third part on both sides along the first edge. And the first part forms a plurality of limit points through the above structure to prevent the bracket from moving. Finally, the third part is fixedly connected to the mainboard, thereby completing the installation and fixation of the entire bracket, so that the reliability of the overall structure is further improved.

[0029] In a possible implementation of the present application, the electronic device further includes a fastener, and the third part and the mainboard are locked by the fastener. For example, the fastener may be a screw, and through holes are respectively provided on the third part of the bracket and the mainboard, and a threaded hole is provided on the middle plate, and the screw may pass through the through holes on the third part and the mainboard, and lock and cooperate with the threaded hole on the middle plate, thereby achieving a fixed connection between the bracket and the mainboard and the middle plate.

[0030] In a possible implementation of the present application, the third part includes a plurality of sub-support parts, and the plurality of sub-support parts are sequentially distributed along a direction parallel to the first edge; and the thickness of the plurality of sub-support parts increases sequentially along a direction close to the first part. In this way, the size difference of the connection between the second part and the third part can be reduced, thereby facilitating the improvement of the structural strength of the connection between the second part and the third part.

[0031] In a possible implementation of the present application, the bracket is arranged between adjacent first components, and the first part extends along the spacing between the first components. A limiting structure is arranged at one end of the first part away from the second part, and another limiting structure is arranged at a side of the second part away from the first part. In this way, the third part does not need to be arranged at the side of the second part away from the first part, and only one limiting structure is arranged, which can effectively support and limit the second part on the one hand; on the other hand, it is also beneficial to reduce the space occupied on the mainboard, thereby being more beneficial to saving mainboard space.

[0032] Exemplarily, on the above-mentioned bracket, a limiting structure formed by the limiting protrusion and the limiting shell can be set on the side of the first part away from the second part, and a limiting structure formed by the clamping protrusion and the clamping shell can be set on the side of the second part away from the first part, so as to effectively limit and fix the bracket as a whole.

[0033] In a possible implementation of the present application, a positioning structure is provided on the support surface, and the positioning structure can limit the second device in at least one direction. That is, the positioning structure can limit the movement of the second device relative to the bracket in at least one direction. In this way, the positioning structure can form a pre-position for the second device, which is conducive to reducing the difficulty of installing the second device and improving the installation accuracy of the second device during the installation process.

[0034] In a possible implementation of the present application, the positioning structure may include a plurality of positioning blocks, and positioning blocks are provided at two adjacent edges of the second device. The positioning block includes a horizontal section and a vertical section, one end of the vertical section is fixed on the support surface, the horizontal section is fixedly connected to the other end of the vertical section, and the edge of the second device is provided between the horizontal section and the support surface. In this way, the second device can be limited in a direction close to the vertical section by the vertical section of the positioning block, and the second device can be limited in a direction away from the support surface by the horizontal section of the positioning block, thereby forming a plurality of direction limits for the second device, i.e., pre-positioning, to ensure that the second device cannot move in any direction. Finally, the second device can be fixed, for example, by gluing.

[0035] In a possible implementation of the present application, the positioning structure may include a limiting boss, which extends around the second device. In this way, the second device can be limited in a direction parallel to the support surface. Then the second device can be fixed.

[0036] Exemplarily, the above-mentioned limiting boss may extend around the second device. Alternatively, a plurality of limiting bosses may be provided, and the plurality of limiting bosses may be evenly distributed around the second device, so that the second device can be limited in a direction parallel to the supporting surface.

[0037] In a possible implementation of the present application, the accommodation space is communicated with the inner space of the housing, that is, the accommodation space does not need to form a closed structure, so as to facilitate the maintenance or replacement of the first component in the accommodation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A structural diagram of an electronic device provided in an embodiment of the present application;

[0039] Figure 2 An exploded diagram of an electronic device provided in an embodiment of the present application;

[0040] Figure 3 A structural diagram of an installation method of a camera module provided for related technology;

[0041] Figure 4 A structural diagram of another installation method of a camera module provided for related technology;

[0042] Figure 5 A structural diagram of an installation method of a camera module inside an electronic device is provided for an embodiment of the present application;

[0043] Figure 6 for Figure 5 The main view of the provided camera module;

[0044] Figure 7 An exploded view of the limiting structure between the bracket and the mainboard provided in an embodiment of the present application;

[0045] Figure 8 for Figure 7 A top view of the assembly structure of the bracket and the mainboard is provided;

[0046] Fig. 9 for Figure 8 AA section view;

[0047] Fig.10 A structural diagram of a bracket provided in an embodiment of the present application inside an electronic device;

[0048] Fig.11 for Fig.10 A structural diagram of the provided bracket;

[0049] Fig.12 An assembly structure diagram of the limiting shell, limiting protrusion and shielding cover provided in an embodiment of the present application;

[0050] Fig.13 A partial structural diagram of another bracket provided in an embodiment of the present application inside an electronic device;

[0051] Fig.14 for Fig.13 A magnified view of the structure of region B;

[0052] Fig.15 A structural diagram of a first convex hull provided in an embodiment of the present application;

[0053] Fig.16 A structural diagram of a groove provided in an embodiment of the present application;

[0054] Fig.17 for Fig.14 CC profile of ;

[0055] Fig.18 An exploded diagram of another bracket and a mainboard provided in an embodiment of the present application;

[0056] Fig.19 A structural diagram of another bracket and mainboard provided in an embodiment of the present application;

[0057] Fig. 20A structural diagram of another bracket provided in an embodiment of the present application;

[0058] Fig.21 for Fig. 20 A front view of the provided bracket 600;

[0059] Fig. 22 A structural diagram of another bracket 600 provided in an embodiment of the present application;

[0060] Fig.23 for Fig. 22 A top view of a camera module 410 mounted on a bracket 600 is provided;

[0061] Fig.24 A partial structural diagram of another bracket 600 provided in an embodiment of the present application inside an electronic device 10;

[0062] Fig.25 for Fig.24 A front view of the provided bracket 600;

[0063] Fig.26 for Fig.24 An exploded view of the support point structure between the bracket and the motherboard is provided;

[0064] Fig. 27 A structural diagram of the mutual engagement of the engaging protrusion and the engaging shell provided in the embodiment of the present application;

[0065] Fig.28 A structural diagram of a snap-on case provided in an embodiment of the present application;

[0066] Fig.29 A structural diagram of another clamping protrusion provided in an embodiment of the present application;

[0067] Fig.30 for Fig.28 The provided snap-on housing and Fig.29 The assembly structure diagram of the provided snap-on protrusion;

[0068] Fig.31 A structural diagram of a moving state of a snap-fit ​​protrusion provided in an embodiment of the present application when it moves into a snap-fit ​​housing;

[0069] Fig.32 A structural diagram of a moving state of a snap-fit ​​protrusion provided in an embodiment of the present application when it moves out of the snap-fit ​​housing;

[0070] Fig.33 A structural diagram of another snap-on shell provided in an embodiment of the present application;

[0071] Fig.34 for Fig.33 The connection structure diagram of the provided snap-on shell and the bracket;

[0072] Fig.35 A structural diagram of another positioning structure provided in an embodiment of the present application;

[0073] Fig.36 for Fig.35 A top view of the positioning structure is provided.

[0074] Figure numerals: 10-electronic device; 100-display module; 110-translucent cover; 120-display screen; 200-housing; 210-back cover; 220-frame; 221-first convex bump; 230-middle plate; 300-main board; 310-mounting hole; 320-accommodating space; 330-first edge; 340-second card slot; 350-third card slot; 400-electronic device; 410-camera module; 411-FPC board; 412-BTB connector; 500-shielding cover; 600-bracket; 610-first part; 620-second part; 621-support surface; 630-third part; 631-sub-support part; 631a-first sub-support part; 631b-second sub-support part Part; 632-second convex bump; 640-limiting protrusion; 650-first slot; 660-reinforcing rib; 670-positioning block; 670a-first positioning block; 670b-second positioning block; 671-horizontal section; 672-vertical section; 680-clamping protrusion; 681-groove; 682-groove body; 690-limiting boss; 700-limiting shell; 710-opening; 720-first wall panel; 730-second wall panel; 740-third wall panel; 750-fourth wall panel; 760-support plate; 800-clamping shell; 810-bottom plate; 820-elastic arm; 821-first plate body; 822-second plate body; 823-third plate body; 824-protruding point; 830-limiting plate; 900-fastener. DETAILED DESCRIPTION

[0075] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0076] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0077] In addition, in the present application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to the changes in the orientation of the components in the drawings.

[0078] In the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0079] The embodiment of the present application provides an electronic device. Specifically, the electronic device may be a portable electronic device or other types of electronic devices. For example, the electronic device may be a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a monitor, a camera, a personal computer, a notebook computer, a wearable device, etc. For the convenience of explanation, the following examples are all taken as an example of the electronic device being a mobile phone.

[0080] See also Figure 1 and Figure 2 , Figure 1 This is a structural diagram of an electronic device 10 provided in an embodiment of the present application. Figure 2 The exploded view of the electronic device 10 provided in the embodiment of the present application. As can be seen from the above, in the present embodiment, the electronic device 10 is a mobile phone, and the electronic device 10 can be in an approximately rectangular plate-shaped structure. The electronic device 10 can include a display module 100, a housing 200 and a mainboard 300.

[0081] Understandably, Figure 1 and Figure 2 Only some components of the electronic device 10 are schematically shown, and the actual shapes, sizes, positions and structures of these components are not subject to the present invention. Figure 1 and Figure 2 restrictions.

[0082] To facilitate the description of the following embodiments, an XYZ coordinate system is established. The width direction of the electronic device 10 is defined as the X-axis direction, the length direction of the electronic device 10 is defined as the Y-axis direction, and the thickness direction of the electronic device 10 is defined as the Z-axis direction. The XYZ coordinate system can be flexibly set according to actual needs. The embodiments of the present application only provide an example and cannot be considered as a special limitation to the present application.

[0083] The above-mentioned display module 100 is used to display images, videos, etc. The display module 100 may include a transparent cover plate 110 and a display screen 120 (English name: panel, also called display panel), and the transparent cover plate 110 and the display screen 120 are stacked. The material of the transparent cover plate 110 includes but is not limited to glass. For example, the transparent cover plate 110 can adopt an ordinary transparent cover plate 110, which is used to protect the display screen 120 to prevent the display screen 120 from being damaged by external force, and can play a dust-proof role. A transparent cover plate 110 with a touch function can also be used to enable the electronic device 10 to have a touch function, thereby making it more convenient for users to use. Therefore, the present application does not specifically limit the specific material of the transparent cover plate 110.

[0084] In addition, the display screen 120 may be a flexible display screen or a rigid display screen. For example, the display screen 120 may be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (MIL-E) display screen, a micro organic light-emitting diode (MIL-E) display screen, a microorganic light-emitting diode (MIL-E) display screen, a quantum dot light-emitting diode (QLED) display screen, or a liquid crystal display (LCD).

[0085] The housing 200 is used to protect the electronic device 400 inside the electronic device 10. The housing 200 may include a back cover 210 and a frame 220. The back cover 210 is located on the side of the display screen 120 away from the light-transmitting cover plate 110, and is stacked and spaced with the light-transmitting cover plate 110 and the display screen 120. The frame 220 is located between the light-transmitting cover plate 110 and the back cover 210. The frame 220 is fixed to the back cover 210. For example, the frame 220 may be fixedly connected to the back cover 210 by bonding, threading, welding, snapping, etc. The frame 220 may also be an integrally formed structure with the back cover 210, that is, the frame 220 and the back cover 210 are a structural component as a whole. The light-transmitting cover plate 110 may be fixed to the frame 220 by gluing, so that the light-transmitting cover plate 110, the back cover 210 and the frame 220 enclose a receiving cavity inside the electronic device 10, and the electronic devices 400 are all arranged in the receiving cavity.

[0086] In some embodiments, the housing 200 may further include a middle plate 230, which is disposed in the accommodating cavity, and is located on the side of the display screen 120 away from the light-transmitting cover plate 110. The middle plate 230 is fixedly connected to the frame 220 to form the middle frame of the electronic device 10. For example, the middle plate 230 and the frame 220 may be fixedly connected by gluing, threading, welding, snapping, etc. The middle plate 230 and the frame 220 may also be an integrally formed structure, that is, the two are a whole structural component. The middle plate 230 divides the accommodating cavity into two independent spaces, one of which is located between the light-transmitting cover plate 110 and the middle plate 230, and the display screen 120 is located in the space. The other space is located between the middle plate 230 and the back cover 210, and the main board 300 is located in the space.

[0087] The mainboard 300 is used to set the electronic devices 400 inside the electronic device 10 and realize the electrical connection between the electronic devices 400. The mainboard 300 is fixed to the middle plate 230 by gluing, welding, clamping or threading. Therefore, the present application does not specifically limit the fixing method of the mainboard 300.

[0088] In addition, the electronic device 400 may be a control chip (eg, a system on chip, SOC), a graphics processing unit (GPU), a universal flash storage (UFS), a camera module 410, and the like.

[0089] For example, the electronic device 400 is a camera module 410. Figure 3 , Figure 3 A structural diagram of a mounting method of the camera module 410 provided in the related art, a mounting hole 310 for mounting the camera module 410 can be opened on the above-mentioned main board 300, the camera module 410 is placed in the mounting hole 310, and fixed on the above-mentioned middle board 230. Then, the camera module 410 is electrically connected to the main board 300 through an FPC board (flexible printed circuit) 411 and a BTB connector (board to board) 412.

[0090] Alternatively, see Figure 4 , Figure 4A structural diagram of another installation method of the camera module 410 provided in the related art. A shielding cover 500 is provided on the mainboard 300, and the shielding cover 500 is provided on some electronic devices 400, for example, the control chip, to electromagnetically shield the electronic devices 400. Therefore, the camera module 410 can be fixed on the shielding cover 500, and electrically connected to the mainboard 300 through the FPC board 411 and the BTB connector 412.

[0091] However, opening the mounting hole 310 on the mainboard 300 will reduce the available space of the mainboard 300, resulting in limited stacking of the electronic components 400. Placing the camera module 410 on the shielding cover 500 may not meet the layout space requirements in some cases. Figure 1 and Figure 2 The three camera modules 410 are shown, and the three camera modules 410 are distributed in sequence along the Y direction; when the shielding cover 500 is not set in the corresponding area of ​​the installation position of any one of the three camera modules 410 on the mainboard 300, the camera module 410 cannot be installed normally.

[0092] Based on this, see Figure 5 and Figure 6 , Figure 5 A structural diagram of an installation method of a camera module 410 inside an electronic device 10 is provided for an embodiment of the present application. Figure 6 for Figure 5 A front view of the provided camera module 410. In this embodiment, the electronic device 400 may include a first device 401 and a second device.

[0093] The electronic device 10 provided in the embodiment of the present application further includes a bracket 600, which is arranged on the mainboard 300, and at least a part of the area of ​​the bracket 600 is spaced apart from the mainboard 300 to form a receiving space 320, which is connected to the internal space of the housing 200. The receiving space 320 and other areas on the mainboard 300 are used to set the first device 401. For example, the control chip, the BTB connector 412 or other first devices 401 can be set in the receiving space 320 and other areas on the mainboard 300. In addition, the bracket 600 has a support surface 621, which is a surface on the bracket 600 away from the receiving space 320. The support surface 621 can be used to support the second device, for example, the camera module 410. The following description is taken as an example that the second device is the camera module 410.

[0094] In this way, part of the second device (for example, the camera module 410) is supported by the bracket 600 inside the electronic device 10, that is, the layout space inside the electronic device 10 is expanded along the thickness direction, so that the layout space of the first device 401 is increased, which is conducive to alleviating the problem of compact layout on the main board 300 and making the layout of the electronic devices 400 inside the electronic device 10 more diversified, so as to adapt to different application scenarios.

[0095] For some examples, see Figure 5 and Figure 6 The bracket 600 is in a plane parallel to the mainboard 300, and the bracket 600 includes at least a first portion 610 and a second portion 620. The first portion 610 is used to contact the mainboard 300 so that the bracket 600 is supported on the mainboard 300 as a whole. The surface of the second portion 620 away from the mainboard 300 is a support surface 621, and the support surface 621 of the second portion 620 is used to support the second device, i.e., the camera module 410, and the second portion 620 is spaced apart from the mainboard 300 to form the accommodation space 320.

[0096] On this basis, see Figure 7 and Figure 8 , Figure 7 This is an exploded view of the limiting structure between the bracket 600 and the mainboard 300 provided in the embodiment of the present application. Figure 8 for Figure 7 A top view of the assembly structure of the bracket 600 and the mainboard 300 is provided. To prevent the bracket 600 from moving relative to the mainboard 300, the electronic device 10 provided in the embodiment of the present application further includes a limiting structure, which may include a limiting shell 700 and a limiting protrusion 640. The limiting shell 700 is fixed on the mainboard 300 and fixed in the area of ​​the mainboard 300 where the first device 401 is not provided. The limiting shell 700 has a limiting space inside. The limiting protrusion 640 is fixed on the bracket 600 and inserted into the limiting space in a direction parallel to the mainboard 300.

[0097] In this way, since the limiting protrusion 640 is inserted into the limiting shell 700 in a direction parallel to the mainboard 300, the limiting shell 700 can limit the limiting protrusion 640 in a direction other than the direction in which the limiting protrusion 640 is inserted into the limiting shell 700 in a plane parallel to the mainboard 300, that is, the limiting protrusion 640 can only move in the direction in which the limiting protrusion 640 is inserted into the limiting shell 700 and in the opposite direction. For example, the limiting shell 700 can prevent the limiting protrusion 640 from rotating in a plane parallel to the mainboard 300, thereby achieving the limitation of the bracket 600.

[0098] Also, see Fig. 9 , Fig. 9 for Figure 8AA cross-sectional view. Since the limiting protrusion 640 is inserted into the limiting shell 700, and the limiting shell 700 is fixed on the main board 300, the limiting protrusion 640 is located between the wall plate of the limiting shell 700 and the main board 300, so that the limiting shell 700 can limit the limiting protrusion in the direction away from the main board 300, that is, limit the bracket 600 from moving along the thickness direction of the electronic device 10, so that the bracket 600 can be further limited, which is conducive to improving the reliability of the overall structure.

[0099] In some examples, the above-mentioned limiting shell 700 can be as follows Figure 7 As shown, the limiting shell 700 is fixed to an area on the mainboard 300 where the first device 401 is not provided, for example, by welding, gluing, etc. Alternatively, the limiting shell 700 may also be fixedly connected to the adjacent shielding cover 500. For example, the limiting shell 700 and the shielding cover 500 are welded and fixed. Alternatively, the limiting shell 700 may also be an integrally formed structure with the adjacent shielding cover 500, that is, the limiting shell 700 and the shielding cover 500 form a structural component as a whole. Therefore, the present application does not specifically limit the specific setting method of the limiting shell 700.

[0100] Furthermore, the above-mentioned limiting protrusion 640 can be fixedly connected with the bracket 600 by gluing, clamping, etc. Alternatively, the limiting protrusion 640 can also be integrally formed with the bracket 600, that is, the two form a structural component as a whole. Therefore, this application does not make any special limitation on this.

[0101] In addition, other connection points may be provided between the bracket 600 and the mainboard 300 to further improve the connection reliability between the bracket 600 and the mainboard 300. For example, another limiting structure is provided between the bracket 600 and the adjacent structural member. Alternatively, a bolt connection point may be provided between the bracket 600 and the mainboard 300. Alternatively, the bracket 600 and the mainboard 300 may be fixed by gluing, etc.

[0102] It is understandable that the connection methods of other connection points set between the bracket 600 and the mainboard 300 include but are not limited to the above-mentioned methods. In addition, the setting of other connection points can be flexibly applied according to the actual application scenario of the electronic device 10. Therefore, this application does not make any special restrictions on this.

[0103] Furthermore, the bracket 600 can be supported in an area on the mainboard 300 where the first device 401 is not provided. For example, the bracket 600 is disposed as a whole in an area near the edge of the mainboard 300. Alternatively, the first part 610 of the bracket 600 is disposed in the interval area between two adjacent first devices 401 on the mainboard 300, so that the second part 620 can be disposed on a side of some first devices 401 away from the mainboard 300. In this way, the first part 610 used to support the bracket 600 as a whole will not affect the layout of the first devices 401 on the mainboard 300, and only occupies the area on the mainboard 300 where the first devices 401 are not provided. Therefore, the layout of the first devices 401 on the mainboard 300 will not be affected, which is conducive to improving the rationality of the overall layout.

[0104] The specific structure of the bracket 600 , the specific connection method of other connection points between the bracket 600 and the mainboard 300 , and the specific setting position of the bracket 600 on the mainboard 300 are described in detail below with examples.

[0105] In one possible embodiment, see Fig.10 and Fig.11 , Fig.10 This is a structural diagram of a bracket 600 provided in an embodiment of the present application inside an electronic device 10. Fig.11 for Fig.10 A structural diagram of a bracket 600 is provided. The bracket 600 is arranged on the mainboard 300 in an area near the edge, and the edge is arranged adjacent to the inner wall of the frame 220. And the above-mentioned limiting shell 700 forms an integrally formed structure with the adjacent shielding cover 500. For the convenience of description, the edge is referred to as the first edge 330 below, and the first edge 330 extending along the Y-axis direction is taken as an example for explanation. The first edge 330 is arranged adjacent to the frame 220 (that is, any one of the two parts extending along the Y-axis direction on the frame 220). It should be noted that the first edge 330 and the frame 220 are arranged adjacent to each other, and the two may be in contact or abutment with each other, or there may be a gap between the two.

[0106] Specifically, the bracket 600 includes the first part 610 and the second part 620, and may further include a third part 630. The first part 610, the second part 620 and the third part 630 are sequentially distributed along the extension direction of the first edge 330 (i.e., the Y-axis direction). That is, both sides of the second part 620 are supported by the first part 610 and the third part 630, so that the first part 610 is spaced from the main board 300, and the above-mentioned accommodation space 320 is formed between the two, and the first part 610 and the third part 630 are in contact with the main board 300.

[0107] Furthermore, the above-mentioned limiting protrusion 640 is arranged on a side of the bracket 600 away from the inner wall of the frame 220 (i.e., the portion of the frame 220 adjacent to the first edge 330). That is, the bracket 600 can abut between the limiting shell 700 and the inner wall of the frame 220. Exemplarily, the limiting protrusion 640 can be arranged on the first part 610 and fixed to a side of the first part 610 away from the inner wall of the frame 220. The limiting protrusion 640 is inserted into the above-mentioned limiting shell 700, thereby forming a limit for the bracket 600.

[0108] Also, see Fig.12 , Fig.12 The assembly structure diagram of the limiting shell 700, the limiting protrusion 640 and the shielding cover 500 provided in the embodiment of the present application. The limiting shell 700 forms a shell structure with an opening 710 on one side, and is an integral structure with the corresponding shielding cover 500.

[0109] Specifically, the limiting shell 700 may include at least a first wall panel 720, a second wall panel 730 and a third wall panel 740. The first wall panel 720 is spaced apart from the main board 300. The second wall panel 730 and the third wall panel 740 are respectively fixed to the two sides of the first wall panel 720 along a direction parallel to the main board 300 (for example, the Y-axis direction), and the second wall panel 730 and the third wall panel 740 are both located between the first wall panel 720 and the main board 300, that is, the first wall panel 720, the second wall panel 730 and the third wall panel 740 can form a shell structure with a cross-section that is approximately a U-shaped structure, and the approximately U-shaped shell structure is buckled on the main board 300, so that the first wall panel 720, the second wall panel 730, the third wall panel 740 and the main board 300 jointly enclose a limiting space for inserting the limiting protrusion 640, and the shielding cover 500 can be fixedly connected to the second wall panel 730 and the third wall panel 740 to form a structural component as a whole.

[0110] In addition, the limiting shell 700 may further include a fourth wall plate 750, the first wall plate 720, the second wall plate 730 and the third wall plate 740 are all arranged on the same side of the fourth wall plate 750, and the fourth wall plate 750 is fixedly connected to the first wall plate 720, the second wall plate 730 and the third wall plate 740, and the fourth wall plate 750 is fixedly connected to the shielding cover 500. The opening 710 of the limiting shell 700 is formed on one side of the first wall plate 720, the second wall plate 730 and the third wall plate 740 away from the fourth wall plate 750.

[0111] In some embodiments, the plane where the opening 710 is located can be perpendicular to the mainboard 300 and face away from the corresponding shielding cover 500, so that the limiting protrusion 640 can be inserted into the limiting space inside the limiting shell 700 from the opening 710 in a direction parallel to the mainboard 300. It can be understood that the plane where the opening 710 is located can also form a certain angle with the mainboard, for example, an angle of 70°, 80°, 110° or 120°, etc. Therefore, this application does not make any special restrictions on this.

[0112] In this way, the first wall plate 720 on the limiting shell 700 away from the main board 300 can limit the bracket 600 to prevent the bracket 600 from moving in a direction away from the main board 300. In addition, the second wall plate 730 and the third wall plate 740 (two wall plates located on both sides of the first wall plate 720) of the housing 200 can prevent the bracket 600 from rotating in a plane parallel to the main board 300, thereby effectively limiting the bracket 600.

[0113] In some examples, the structure of the above-mentioned limiting shell 700 can be a shell structure that is approximately a rectangular parallelepiped structure, and an opening 710 is formed on one side wall to facilitate the limiting protrusion 640 to be inserted into the limiting shell 700. Alternatively, the above-mentioned limiting shell 700 can also adopt other structures, for example, the limiting shell 700 is a semi-cylindrical structure, the semi-cylindrical structure is buckled on the main board 300, and an opening 710 is provided on one end surface, and the above-mentioned fourth wall plate 750 is provided on the other end surface, so that the limiting protrusion 640 can be inserted into the limiting shell 700 of the semi-cylindrical structure. It can be understood that when the limiting shell 700 is a semi-cylindrical structure, the above-mentioned first wall plate 720, the second wall plate 730 and the third wall plate 740 together form an arc-shaped wall plate of the semi-cylindrical structure. Therefore, the present application does not specifically limit the specific structure of the limiting shell 700.

[0114] Furthermore, the above-mentioned limiting shell 700 is composed of a first wall plate 720, a second wall plate 730, a third wall plate 740 and a fourth wall plate 750, and is buckled on the main board 300, that is, the opening 710 of the limiting shell 700 does not form a step (such as Fig. 9 As shown), the limiting protrusion 640 can be directly inserted into the limiting space through the opening 710, which helps to reduce the difficulty of installation and process.

[0115] To further enhance the limiting effect of the bracket 600, a limiting point may be provided between the bracket 600 and the inner wall of the frame 220. Fig.13 and Fig.14 , Fig.13 This is a structural diagram of another bracket 600 provided in an embodiment of the present application inside an electronic device 10. Fig.14 for Fig.13A first convex bump 221 and a first slot 650 are provided between the bracket 600 and the frame 220. One of the first convex bump 221 and the first slot 650 is provided on the inner wall of the frame 220, and the other of the first convex bump 221 and the first slot 650 is provided on the bracket 600. The first convex bump 221 is inserted into the first slot 650, thereby forming a limit point to further limit the bracket 600.

[0116] For example, see Fig.15 and Fig.16 , Fig.15 This is a structural diagram of the first convex hull 221 provided in an embodiment of the present application. Fig.16 The first card slot 650 is a structural diagram of the embodiment of the present application. A first convex bump 221 is provided on the inner wall of the frame 220 (i.e., the inner wall of the frame 220 adjacent to the first edge 330), and a first card slot 650 is formed on the side wall of the first portion 610 of the bracket 600 facing the frame 220 (i.e., the inner wall of the frame 220 adjacent to the first edge 330). Fig.17 , Fig.17 for Fig.14 In the CC cross-sectional view, the first convex bump 221 is inserted into the first card slot 650, so that the first part 610 of the bracket 600 abuts between the first convex bump 221 and the limiting shell 700, thereby improving the limiting effect of the bracket 600. In other examples, the first convex bump 221 and the first card slot 650 can be provided in multiple groups and distributed along the extension direction of the first edge 330. For example, the first convex bump 221 and the first card slot 650 can also be provided between the third part 630 of the bracket 600 and the inner wall of the frame 220, so that multiple limiting points can be formed between the bracket 600 and the inner wall of the frame 220, which is conducive to further improving the reliability of limiting the bracket 600.

[0117] Furthermore, the shapes of the first convex bump 221 and the first slot 650 are not unique. For example, along the cross section parallel to the middle plate 230, the cross section of the first convex bump 221 can be a semicircular structure; accordingly, the edge of the first slot 650 forms a semicircular arc structure. Alternatively, the cross section of the first convex bump 221 can be a half regular polygon structure; accordingly, the edge of the first slot 650 is also a half regular polygon structure. Therefore, the present application does not specifically limit the specific shapes of the first convex bump 221 and the first slot 650.

[0118] In addition, the above-mentioned limit point can also be set between the main board 300 and the bracket 600. For example, see Fig.18 , Fig.18The exploded view of another bracket 600 and the mainboard 300 provided in the embodiment of the present application, the first edge 330 of the mainboard 300 is provided with a second slot 340, and a second convex bump 632 is formed on the side of the third part 630 of the bracket 600 facing the mainboard 300, so that the second convex bump 632 is inserted into the second slot 340 to form a limit point. Since the mainboard 300 is fixed on the above-mentioned middle plate 230, that is, the mainboard 300 is fixedly connected to the middle plate 230. Therefore, the second slot 340 is provided on the mainboard 300, which can also play a role in limiting the bracket 600.

[0119] Please refer to Fig.18 The bracket 600 is provided with a first slot 650. Since the bracket 600 is located on the main board 300, a third slot 350 may be provided on the main board 300 at a position corresponding to the first slot 650 on the bracket 600, so that Fig.13 The first protrusion 221 on the frame 220 can extend into the first slot 650 on the bracket 600 and the third slot 350 on the mainboard 300 at the same time, which is beneficial to further improve the overall limiting effect.

[0120] On this basis, in order to facilitate the installation of the above-mentioned bracket 600, the bracket 600 is at least provided with an area of ​​the first card slot 650 or the above-mentioned first convex bump 221, which can be made of elastic material, so that when the area is squeezed, it can be elastically deformed, thereby facilitating installation and removal. For example, the elastic material can be an elastic rubber material, etc. Specifically, when installing the bracket 600, the limiting protrusion 640 on the bracket 600 can be first inserted into the corresponding limiting shell 700, that is, the limiting protrusion 640 is inserted into the limiting space. Then, the bracket 600 is pressed in the direction close to the mainboard 300. At this time, the area of ​​the bracket 600 provided with the first card slot 650 will abut against the first convex bump 221 on the frame 220. Continue to press the bracket 600. Since the area where the first slot 650 is formed is made of elastic material, the area can be squeezed and deformed. When the second portion 620 of the bracket 600 abuts against the surface of the mainboard 300, the bracket 600 abuts between the first convex bump 221 and the limiting shell 700. Finally, the bracket 600 is fixed to the mainboard 300 by the fastener 900, and the installation of the bracket 600 is realized.

[0121] It is understandable that the above-mentioned bracket 600 can be made of elastic material only in a local area, for example, the area where the first slot 650 is opened. Alternatively, the entire bracket 600 can be made of elastic material to reduce the overall process difficulty. Therefore, the present application does not make special restrictions on this. Correspondingly, the above-mentioned second bulge can also be made of the same elastic material, so it is not described repeatedly. In this way, the above-mentioned limiting shell 700 can limit the bracket 600, that is, when the limiting protrusion 640 on the bracket 600 is inserted into the limiting space in the limiting shell 700, the bracket 600 as a whole can be limited in the direction away from the mainboard 300 ( Fig.13 The Z-axis direction shown in FIG. 1 ) and in a plane parallel to the main board 300 ( Fig.13 The rotation within the XY plane (as shown) is limited, thereby limiting the bracket 600 in multiple directions.

[0122] Furthermore, the first protrusion 221 and the first slot 650 are engaged with each other to achieve limiting, that is, by applying a certain external force to the bracket 600, the bracket 600 and the mainboard 300 can be separated from each other along the X-axis direction, so as to facilitate the installation and disassembly of the bracket 600, thereby achieving further limiting of the bracket 600.

[0123] To further improve the connection reliability between the bracket 600 and the main board 300 and the middle board 230. Fig.19 , Fig.19 The structure diagram of another bracket 600 and the mainboard 300 provided in the embodiment of the present application. The bracket 600 and the mainboard 300 can also be locked and fixed by a fastener 900. For example, the fastener 900 can be a screw. Through holes can be opened on the third part 630 and the mainboard 300, and Figure 2 The middle plate 230 shown has a threaded hole in the area corresponding to the through hole. The screw is locked with the threaded hole to further fix the bracket 600 with the main board 300 and the middle plate 230, thereby improving the reliability of the overall structure.

[0124] Alternatively, the fastener 900 may also be a screw and a nut, that is, the screw sequentially passes through the third portion 630 of the bracket 600, the main board 300 and the middle board 230, and nuts are provided at both ends of the screw, and the nuts and the screw are locked together to achieve a fixed connection between the bracket 600, the main board 300 and the middle board 230. Therefore, the embodiment of the present application does not specifically limit the specific form of the locking member.

[0125] In some examples, the contact area between the bracket 600 and the mainboard 300 can also be glued and fixed by adhesive. For example, the first part 610 of the bracket 600 and the mainboard 300, as well as the third part 630 of the bracket 600 and the mainboard 300 can be further fixedly connected by gluing, thereby facilitating further improving the fixing strength of the bracket 600.

[0126] On this basis, since there is a size difference between the various regions of the bracket 600 along the thickness direction, in order to improve the support strength of the junction between the first part 610 and the second part 620. Fig. 20 and Fig.21 , Fig. 20 This is a structural diagram of another bracket 600 provided in an embodiment of the present application. Fig.21 for Fig. 20 A front view of the bracket 600 is provided. The bracket 600 may further include a reinforcing rib 660, which is disposed at the junction of the first portion 610 and the second portion 620, that is, the reinforcing rib 660 is connected between the surface of the second portion 620 away from the mainboard 300 and the side wall of the first portion 610 facing the second portion 620, thereby improving the support strength between the first portion 610 and the second portion 620, thereby preventing the first portion 610 and the second portion 620 from being broken or damaged.

[0127] In some examples, only one reinforcing rib 660 may be provided between the first part 610 and the second part 620, and the reinforcing rib 660 may increase the support strength by increasing the width in the X-axis direction. Alternatively, a plurality of reinforcing ribs 660 may be provided between the first part 610 and the second part 620, and the plurality of reinforcing ribs 660 are spaced apart along the X-axis direction, thereby increasing the number of reinforcing ribs 660 to increase the support strength and save materials. Therefore, the present application does not make any special limitation on this.

[0128] Furthermore, the support strength of the joint between the second portion 620 and the third portion 630 is improved. Fig. 20 and Fig.21 The third portion 630 provided in the embodiment of the present application may include a plurality of sub-support portions 631, and the plurality of sub-support portions 631 are sequentially distributed in a direction close to the first portion 610. In addition, the thickness of the plurality of sub-support portions 631 increases sequentially in a direction close to the first portion 610.

[0129] Exemplarily, the plurality of sub-support portions 631 may include a first sub-support portion 631a and a second sub-support portion 631b, wherein the first sub-support portion 631a is disposed between the second sub-support portion 631b and the second portion 620. Furthermore, the thickness of the first sub-support portion 631a is greater than the thickness of the second sub-support portion 631b. That is, along the direction approaching the first portion 610, the thickness of the third portion 630 gradually increases, so that the height difference between the second portion 620 and the third portion 630 gradually decreases, which is conducive to alleviating the size difference between the second portion 620 and the third portion 630. Since the size difference at the junction of the second portion 620 and the third portion 630 (i.e., the first sub-support portion 631a) is reduced, the support strength at the junction of the second portion 620 and the third portion 630 can be improved to avoid the occurrence of fracture damage at the junction of the second portion 620 and the third portion 630.

[0130] In addition, the surface of the second part 620 away from the mainboard 300 is a support surface 621, and the support surface 621 is used to install and support the second device, that is, the camera module 410. The camera module 410 can be fixed on the support surface 621 by gluing, and a BTB connector for achieving electrical connection with the camera module 410 can be placed in the accommodation space 320 between the second part 620 and the mainboard 300, and other first devices 401 can also be placed.

[0131] When installing the camera module 410, in order to reduce the process difficulty, please refer to Fig. 22 and Fig.23 , Fig. 22 A structural diagram of another bracket 600 provided in an embodiment of the present application is shown in FIG. Fig.23 for Fig. 22 A top view of a camera module 410 is provided on a bracket 600. The bracket 600 may also include a positioning structure, through which the camera module 410 is pre-positioned, for example, to limit the camera module 410 from moving in a direction away from the bracket 600 along the Z axis; or to limit the camera module 410 from moving in a direction parallel to the XY plane. Then, the camera module 410 is fixed by gluing, thereby improving the installation accuracy and reducing the process difficulty.

[0132] Specifically, the positioning structure may include two L-shaped positioning blocks 670, and the two positioning blocks 670 are respectively arranged at two adjacent edges on the support surface 621. In addition, the positioning block 670 includes a horizontal section 671 (extending in a direction parallel to the support surface 621) and a vertical section 672 (extending in a direction perpendicular to the support surface 621), the vertical section 672 is fixed on the support surface 621, and the horizontal section 671 is fixed to an end of the vertical section 672 away from the support surface 621. The camera module 410 is placed on the support surface 621, and the side wall of the camera module 410 abuts against the vertical section 672, so that the vertical sections 672 of the two positioning blocks 670 limit the displacement in the X direction and the Y direction respectively. The edge of the camera module 410 is located between the horizontal section 671 and the support surface 621, so that the horizontal section 671 limits the displacement in the Z direction, thereby forming a pre-positioning of the camera module 410 for easy gluing and fixing.

[0133] Exemplarily, the two positioning blocks 670 may include a first positioning block 670a and a second positioning block 670b. The first positioning block 670a is fixed to the edge of the support surface 621 close to the third portion 630 ( Fig. 22 The horizontal section 671 of the first positioning block 670a extends toward the direction close to the first portion 610 (towards the right side edge of the second portion 620). Fig. 22 The second positioning block 670b is fixed to the edge of the support surface 621 near the limiting protrusion 640 ( Fig. 22 The horizontal section 671 of the second positioning block 670b extends away from the limiting protrusion 640 (towards the upper side edge of the second portion). Fig. 22 Lower middle extension).

[0134] In this way, in the XY plane, the camera module 410 is located between the frame 220 (i.e., the portion of the frame 220 adjacent to the camera module 410), the vertical section 672 of the first positioning block 670a, and the vertical section 672 of the second positioning block 670b; along the Z direction, the camera module 410 is between the horizontal section 671 and the support surface 621. That is, the camera module 410 can only be installed on the support surface 621 of the bracket 600 along the Y direction, from the first part 610 to the second part 620. Thus, the camera module 410 is pre-positioned, so as to facilitate the subsequent fixing of the camera module 410, which is conducive to improving the installation accuracy and reducing the process difficulty.

[0135] It should be noted that the bracket 600 provided in the above embodiment is described by taking the bracket 600 as being disposed at the edge of the mainboard 300. However, it is understandable that the bracket 600 may also be disposed at other positions on the mainboard 300, for example, at the middle area of ​​the mainboard 300. Therefore, the above embodiment cannot be considered as limiting the position of the bracket 600.

[0136] In another possible embodiment, see Fig.24 and Fig.25 , Fig.24 This is a partial structural diagram of another bracket 600 provided in an embodiment of the present application inside an electronic device 10. Fig.25 for Fig.24 A front view of the bracket 600 is provided. In this embodiment, the above-mentioned limiting shell 700 is separately welded and fixed on the main board 300. The specific structure of the limiting shell 700 is the same as the above-mentioned example, so it will not be described repeatedly.

[0137] Moreover, when the above-mentioned limiting shell 700 is fixed separately on the main board 300, a support plate 760 can also be provided on the outer wall of the limiting shell 700. The support plate 760 can increase the contact area between the limiting shell 700 and the main board 300, thereby facilitating the improvement of the connection strength between the limiting shell 700 and the main board 300, and further improving the limiting effect of the limiting shell 700 on the bracket 600.

[0138] On this basis, the bracket 600 includes the above-mentioned first part 610 and the second part 620. In this embodiment, the first part 610 and the second part 620 are distributed in sequence along the Y-axis direction, and the above-mentioned limiting protrusion 640 is arranged at one end of the first part 610 away from the second part 620. The limiting protrusion 640 is inserted into the corresponding limiting shell 700.

[0139] The first portion 610 of the bracket 600 can be disposed on the first device 401 ( Fig.24 The shielding cover 500 in the figure is covered on the first device 401 and extends in the interval space between the second part 620 and the main board 300, the accommodating space 320 between the second part 620 and the main board 300 can accommodate the first device 401, and the supporting surface 621 of the second part 620 can support the second device, namely the camera module 410.

[0140] Exemplarily, a shielding cover 500 is disposed in an adjacent area of ​​the bracket 600, and the first portion 610 of the bracket 600 can extend along the adjacent edge of the shielding cover 500, which can support the second portion 620 on one hand, and will not affect the layout of the shielding cover 500 on the other hand. A camera module 410 is disposed on the supporting surface 621 of the second portion 620.

[0141] Since the bracket 600 provided in this embodiment is disposed in the middle area of ​​the mainboard 300, in order to further reduce the space occupied by the bracket 600, the bracket 600 may not include Fig.23The third part 630 shown is provided with only one supporting point on the side of the second part 620 away from the first part 610, so that support can be formed on both sides of the second part 620, ensuring balanced support and achieving the purpose of saving space.

[0142] Specifically, see Fig.26 , Fig.26 for Fig.24 The exploded view of the support point structure between the bracket 600 and the mainboard 300 is provided. In addition to the first part 610 and the second part 620, the bracket 600 also includes a snap-on protrusion 680, which is arranged on the side of the second part 620 away from the first part 610 and facing the mainboard 300. A snap-on shell 800 is also fixedly arranged at the position corresponding to the snap-on protrusion 680 on the mainboard 300. Fig. 27 , Fig. 27 This is a structural diagram of the mutual engagement of the snap-fit ​​protrusion 680 and the snap-fit ​​shell 800 provided in an embodiment of the present application, wherein the snap-fit ​​protrusion 680 is snapped into the snap-fit ​​shell 800 .

[0143] In this way, only one supporting point (i.e., another limiting structure formed by the above-mentioned snap-fit ​​protrusion 680 and the snap-fit ​​shell 800) is provided on the side of the second part 620 away from the first part 610, and no need to provide Fig.23 The third part 630 shown is therefore helpful to reduce the space occupied on the mainboard 300, thereby further saving the layout space on the mainboard 300. In addition, the second part 620 is provided with a snap-fit ​​protrusion 680 that snaps with the snap-fit ​​shell 800, which can support the second part 620 of the bracket 600 on the one hand, and further limit the bracket 600 on the other hand.

[0144] For example, see Fig.28 , Fig.28 The above-mentioned snap-on shell 800 may include a bottom plate 810, which is fixed to the main board 300. The bottom plate 810 has elastic arms 820 on both sides of the opposite edges. The above-mentioned snap-on protrusion 680 is inserted between the two elastic arms 820 (such as Fig. 27 As shown), the two elastic arms 820 clamp the clamping protrusion 680, so that the clamping protrusion 680 and the clamping shell 800 are mutually clamped to form a further limit on the bracket 600.

[0145] Furthermore, when the clamping protrusion 680 and the clamping shell 800 are clamped with each other, the two elastic arms 820 can abut against the second part 620 of the bracket 600; or, the clamping protrusion 680 can abut against the bottom plate 810; or, when the elastic arms 820 abut against the second part 620, the clamping protrusion 680 and the bottom plate 810 also abut against each other. Thus, the clamping shell 800 can support the side of the second part 620 of the bracket 600 away from the first part 610, which is conducive to the overall support balance.

[0146] In addition, the above-mentioned snap-on shell 800 can be an independent structure and fixed on the main board 300, that is, the above-mentioned bottom plate 810 is fixed on the main board 300 by welding, bonding or snapping (such as Fig. 27 Alternatively, the snap-on shell 800 may also be fixedly connected to the adjacent shielding cover 500, that is, the bottom plate 810 extends in a direction parallel to the main board 300, and is fixedly connected to an adjacent shielding cover 500 by welding, snap-on, bonding, etc. Alternatively, the snap-on shell 800 may also form an integral structure with the shielding cover 500, that is, the two form a structural component as a whole. Therefore, this application does not make any special limitation on this.

[0147] Furthermore, the above-mentioned clamping protrusion 680 is fixedly connected to the second portion 620 of the bracket 600 by bonding, clamping, etc. Alternatively, the clamping protrusion 680 and the bracket 600 can be integrally formed, that is, the two form a structural component as a whole. Therefore, this application does not make any special limitation on this.

[0148] For some examples, see Fig.28 , along the direction perpendicular to the bottom plate 810, the elastic arm 820 may include a first plate 821, a second plate 822 and a third plate 823 in sequence. The two first plates 821 may be vertically fixed to the opposite edges of the bottom plate 810, the two second plates 822 extend in a direction approaching each other and away from the bottom plate 810, and the two third plates 823 extend in a direction away from each other and away from the bottom plate 810.

[0149] That is, the distance between the two first plates 821 is the first distance L1, and the distance between the two connection points of the second plate 822 and the third plate 823 is the second distance L2, that is, the second plate 822 and the third plate 823 form a protrusion 824, and the distance between the two protrusions 824 is the second distance L2, and the first distance L1 is greater than the second distance L2, so that when the snap-fit ​​protrusion 680 is inserted between the two elastic arms 820, the two elastic arms 820 (that is, the two protrusions 824) can clamp the snap-fit ​​protrusion 680 to achieve mutual snap connection between the two.

[0150] Accordingly, see Fig.29 and Fig.30 , Fig.29 This is a structural diagram of another clamping protrusion 680 provided in an embodiment of the present application. Fig.30 for Fig.28 Provide snap-on case 800 with Fig.29 The assembly structure diagram of the clamping protrusion 680 is provided. A groove 681 may be provided on the two side walls of the clamping protrusion 680 which are away from each other. The groove 681 is used to accommodate the connection point between the second plate 822 and the third plate 823, that is, the protruding point 824 formed by the second plate 822 and the third plate 823. When the clamping protrusion 680 is clamped into the clamping shell 800, the protruding point 824 extends into the groove 681 on the side wall of the clamping protrusion 680, so that the clamping is realized by the cooperation between the protruding point 824 and the corresponding groove 681.

[0151] Also, please continue reading Fig.29 and Fig.30 A groove 682 may also be provided on the bottom wall of the bottom plate 810 of the snap-on shell 800, where the snap-on protrusion 680 faces the bottom wall. The groove 682 is used to provide a deformation space for the snap-on protrusion 680 when being squeezed, so that the snap-on protrusion 680 can be squeezed by the two elastic arms 820, which is beneficial to reducing the difficulty of installation and disassembly between the snap-on protrusion 680 and the snap-on shell 800.

[0152] During the installation process, please refer to Fig.31 , Fig.31 The structure diagram of the motion state of the clamping protrusion 680 provided in the embodiment of the present application when it moves into the clamping shell 800. Press the clamping protrusion 680 ( Fig.31 As shown in the middle force F1, since the two third plates 823 extend in the direction away from each other, that is, the two third plates 823 can play a guiding role, so that the clamping protrusion 680 slides along the third plate 823 and squeezes the two elastic arms 820, so that the two elastic arms 820 are deformed in the direction away from each other, when the protruding point 824 formed by the third plate 823 and the second plate 822 is opposite to the groove 681 on the clamping protrusion 680, the elastic arm 820 is reset, and the protruding point 824 extends into the corresponding groove 681, thereby completing the clamping of the clamping protrusion 680 and the clamping shell 800 (as shown in the middle force F1). Fig.30 status shown).

[0153] In order to further reduce the difficulty of installing the clamping protrusion 680, the clamping protrusion 680 provided in the embodiment of the present application can be made of an elastic material, for example, an elastic rubber material. In this way, when the clamping protrusion 680 is pressed into the clamping shell 800, while the two elastic arms 820 are deformed, the clamping protrusion 680 is also squeezed, thereby saving the external force applied to the clamping protrusion 680, which is conducive to reducing the difficulty of installation.

[0154] At the same time, when removing the clamping protrusion 680, refer to Fig.32 , Fig.32 The structural diagram of the motion state of the clamping protrusion 680 provided in the embodiment of the present application when it moves outward from the clamping shell 800 can apply an external force (in a direction away from the bottom plate 810) to the clamping protrusion 680. Fig.32 As shown by the force F2 in the middle. Since the two second plates 822 extend in the direction of approaching each other and away from the bottom plate 810. Therefore, when the clamping protrusion 680 moves in the direction away from the bottom plate 810, the two second plates 822 can play a guiding role, so that the clamping protrusion 680 squeezes the two second plates 822, that is, squeezes the elastic arm 820 to deform in the direction away from each other, and the two protruding points 824 squeeze the clamping protrusion 680. When the clamping protrusion 680 moves to the side where the protruding point 824 is away from the bottom plate 810, the elastic arm 820 is reset, and the clamping protrusion 680 is separated from the clamping shell 800, thereby completing the disassembly.

[0155] For other examples, see Fig.33 and Fig.34 , Fig.33 This is a structural diagram of another snap-on shell 800 provided in an embodiment of the present application. Fig.34 for Fig.33 A connection structure diagram of the snap-on shell 800 and the bracket 600 is provided. The snap-on shell 800 may further include a limit plate 830, which is fixed to the bottom plate 810 and disposed at the edge between the two elastic arms 820. When the snap-on protrusion 680 is snap-on between the two elastic arms 820, the limit plate 830 is located on the side of the limit protrusion 640 away from the first part 610. In this way, the bracket 600 abuts between the limit shell 700 and the limit plate 830 of the snap-on shell 800, thereby preventing the bracket 600 from moving relative to the snap-on protrusion 680 along the distribution direction of the first part 610 and the second part 620 (i.e., the Y direction), which is conducive to further improving the reliability of the limit structure of the bracket 600.

[0156] Based on this, when installing the bracket 600, the limiting protrusion 640 provided on the first part 610 of the bracket 600 is first inserted into the corresponding limiting shell 700, that is, the limiting protrusion 640 is inserted into the limiting space. In addition, the clamping protrusion 680 provided on the second part 620 of the bracket 600 is located on the side of the corresponding clamping shell 800 away from the mainboard 300. At this time, the second part 620 of the bracket 600 is pressed in the direction close to the mainboard 300, that is, the clamping protrusion 680 is pressed, and the clamping protrusion 680 squeezes the two elastic arms 820 of the clamping shell 800, so that the clamping protrusion 680 is clamped into the clamping shell 800, thereby completing the installation of the bracket 600.

[0157] To further enhance the connection strength between the bracket 600 and the mainboard 300, the bracket 600 can also be glued and fixedly connected to the mainboard 300 by adhesive, thereby further enhancing the connection strength between the bracket 600 and the mainboard 300.

[0158] On this basis, the support surface 621 of the second portion 620 of the bracket 600 provided in the embodiment of the present application can be provided with the following Fig. 22 The positioning structure shown is two L-shaped positioning blocks 670. Alternatively, refer to Fig.35 and Fig.36 , Fig.35 A structural diagram of another positioning structure provided in an embodiment of the present application, Fig.36 for Fig.35 A top view of the positioning structure is provided. That is, a limiting boss 690 can be provided on the support surface 621, and the limiting boss 690 is provided at the edge of the support surface 621 and extends along the edge of the support surface 621 to prevent the camera module 410 from moving in a direction parallel to the support surface 621, thereby forming a pre-positioning of the camera module 410, so as to facilitate gluing and fixing the camera module 410.

[0159] For example, please refer to Fig.35 and Fig.36 The limiting boss 690 can be set at two adjacent edges on the support surface 621, so as to limit the movement of the camera module 410 in a direction perpendicular to the two edges, so as to form a pre-positioning of the camera module 410, which is convenient for subsequent fixing of the camera module 410.

[0160] Alternatively, the above-mentioned limiting boss 690 may extend around the camera module 410. Alternatively, a plurality of limiting bosses 690 may be provided and evenly distributed around the camera module 410. Therefore, the present application does not make any special limitation on this.

[0161] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0162] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An electronic device, It is characterized in that include: case; A mainboard, fixedly disposed in the housing; A first device is arranged on the main board; A bracket is arranged on the main board, and at least a part of the bracket is spaced apart from the main board to form a receiving space; The accommodation space is used to accommodate the first device; A surface of the bracket that is away from the accommodating space and away from the mainboard forms a supporting surface; a second device, the second device being disposed on the supporting surface; The first limiting structure is arranged between the bracket and the main board, the first limiting structure includes a limiting protrusion fixed on the bracket and a limiting shell fixed on the main board, the limiting shell includes a first wall plate, a second wall plate and a third wall plate, the first wall plate is arranged with a spacing from all the main boards, the second wall plate and the third wall plate are fixed between the first wall plate and the main board, and are respectively arranged on both sides of the first wall plate, the first wall plate, the second wall plate, the third wall plate and the main board together enclose a limiting space, and the same side edge of the first wall plate, the second wall plate and the third wall plate forms an opening connected to the limiting space; the limiting protrusion is inserted into the limiting space through the opening along a direction parallel to the main board; the distribution direction of the second wall plate and the third wall plate is perpendicular to the direction in which the limiting protrusion is inserted into the limiting space; The second limiting structure is arranged on the side of the bracket opposite to the side where the limiting protrusion is located. The first limiting structure and the second limiting structure can limit the bracket from moving in a direction away from the mainboard, and can limit the bracket from rotating in a plane parallel to the mainboard.

2. The electronic device according to claim 1, It is characterized in that The limiting shell further includes a fourth wall plate, which is disposed on a side of the first wall plate away from the opening, and the first wall plate, the second wall plate and the third wall plate are all fixedly connected to the fourth wall plate.

3. The electronic device according to claim 1 or 2, It is characterized in that A support plate is arranged on the outer wall of the limiting shell, and the support plate is fitted and fixed to the main board.

4. The electronic device according to claim 1 or 2, It is characterized in that The limiting protrusion is integrally formed with the bracket.

5. The electronic device according to claim 1 or 2, It is characterized in that There are a plurality of the first components, and the electronic device further comprises at least one shielding cover, wherein the shielding cover is provided on a portion of the first components, and the limiting shell is fixedly connected to an adjacent shielding cover.

6. The electronic device according to claim 1 or 2, It is characterized in that The bracket includes a first part and a second part, the first part is fixedly connected to the second part and is distributed in a direction parallel to the mainboard; The first part is arranged in an area of ​​the mainboard where the first device is not arranged, and the first limiting structure is arranged between the first part and the mainboard; the accommodating space is formed between the second part and the mainboard, and the supporting surface is located in the second part.

7. The electronic device according to claim 6, It is characterized in that The second limiting structure is arranged on a side of the bracket opposite to the side where the limiting protrusion is located and includes: The limiting protrusion is arranged on a side of the first part away from the second part; The second limiting structure includes a snap-on protrusion and a snap-on shell, the snap-on protrusion is arranged on a side of the second part away from the first part, the snap-on shell includes a base plate and two elastic arms, the base plate is fixed on the main board, the two elastic arms are respectively fixed on both sides of the base plate in a direction parallel to the main board, the snap-on protrusion extends between the two elastic arms, and the two elastic arms clamp the snap-on protrusion.

8. The electronic device according to claim 7, It is characterized in that The elastic arm comprises a first plate body, a second plate body and a third plate body connected in sequence, the two first plates are fixed to the bottom plate and extend in a direction away from the main plate; the two second plates are approaching each other and extend in a direction away from the bottom plate; The two third plates extend in a direction away from each other and away from the bottom plate.

9. The electronic device according to claim 8, It is characterized in that Grooves are provided on the surfaces of the elastic arms on both sides of the clamping protrusion, and a protrusion is formed at the connection between the second plate body and the third plate body of the elastic arm, and the protrusion extends into the corresponding groove.

10. The electronic device according to any one of claims 7 to 9, It is characterized in that The snap-on shell also includes a limit plate, which is fixed to the bottom plate and is located between the two elastic arms along the distribution direction of the two elastic arms; when the snap-on protrusion is snapped between the two elastic arms, the limit plate is located on the side of the snap-on protrusion away from the bracket.

11. The electronic device according to any one of claims 7 to 9, It is characterized in that The clamping protrusion is integrally formed with the bracket.

12. The electronic device according to any one of claims 7 to 9, It is characterized in that There are a plurality of the first components, and the electronic device further comprises at least one shielding cover, wherein the shielding cover is provided on a portion of the first components, and the snap-on shell is fixedly connected to an adjacent shielding cover.

13. The electronic device according to claim 6, It is characterized in that The housing comprises a frame and a middle plate, the middle plate is fixed in the frame, and the main board is fixed on the middle plate; the main board has a first edge, the bracket is arranged at the first edge, and the first part and the second part of the bracket are sequentially distributed along the first edge; The second limiting structure is arranged on a side of the bracket opposite to the side where the limiting protrusion is located and includes: The limiting protrusion is arranged on a side of the first part away from the first edge; The second limiting structure includes a first protrusion and a first groove, which are arranged between the side wall of the bracket close to and extending along the first edge and the inner wall of the frame, one of the first protrusion and the first groove is arranged on the side wall of the bracket corresponding to the first edge, and the other of the first protrusion and the first groove is arranged on the inner wall of the frame, and the first protrusion extends into the first groove.

14. The electronic device according to claim 13, It is characterized in that The mainboard is provided with a second convex bump, which is arranged on the surface of the bracket facing the mainboard. The first edge of the mainboard is provided with a second card slot, and the second convex bump extends into the second card slot.

15. The electronic device according to claim 13, It is characterized in that A third slot is also formed on the first edge, and the third slot is arranged corresponding to the first slot, the first convex bump extends into the first slot, and the first convex bump extends into the third slot.

16. The electronic device according to any one of claims 7 to 9 and 13 to 15, It is characterized in that The bracket includes a reinforcing rib, and the reinforcing rib is arranged between a surface of the first part away from the mainboard and a side wall of the second part facing the first part.

17. The electronic device according to any one of claims 13 to 15, It is characterized in that The bracket also includes a third part, the first part, the second part and the third part are distributed in sequence along the first edge, and the third part is fixedly connected to the mainboard.

18. The electronic device according to claim 17, It is characterized in that The electronic device further comprises a fastener, and the third part and the mainboard are locked by the fastener.

19. The electronic device according to claim 18, It is characterized in that The third portion includes a plurality of sub-support portions, which are distributed in sequence along a direction parallel to the first edge; and the thickness of the plurality of sub-support portions increases in sequence along a direction approaching the first portion.

20. The electronic device according to any one of claims 1, 2, 7 to 9, 13 to 15, 18, and 19, It is characterized in that A positioning structure is arranged on the supporting surface, and the positioning structure can limit the second component along at least one direction.

21. The electronic device according to claim 20, It is characterized in that The positioning structure comprises a plurality of positioning blocks, and the positioning blocks are correspondingly arranged at two adjacent edges of the second device; The positioning block includes a horizontal section and a vertical section, one end of the vertical section is fixed to the support surface, the horizontal section is fixedly connected to the other end of the vertical section, and the edge of the second device is arranged between the horizontal section and the support surface.

22. The electronic device according to claim 20, It is characterized in that The positioning structure includes a limiting boss, and the limiting boss extends around the second component.

23. The electronic device according to any one of claims 1, 2, 7 to 9, 13 to 15, 18, 19, 21, and 22, It is characterized in that The accommodating space is communicated with the inner space of the shell.

Images