Middle frame and electronic equipment

Abstract

The embodiment of the utility model provides a middle frame and electronic equipment, and belongs to the technical field of electronics, a first wall body is arranged on the inner side of a frame, a first containing cavity and a through opening are formed between the first wall body and the frame, and the through opening is located in one side of the first containing cavity in the first direction (such as the length or width direction). The first end of the connecting circuit board matched with the key is located in the first containing cavity, and the second end of the connecting circuit board penetrates through the through opening in the first direction and is arranged outside the first containing cavity. And the first wall body provides strength support for the connecting circuit board and the keys, so that the function realization of the keys is ensured. The second end of the connecting circuit board penetrates through the through opening in the first direction to extend, the occupied space of the connecting circuit board and the first wall body in the thickness direction is reduced, the thickness of the middle frame and the connecting circuit board assembly is reduced, and thinning of the electronic equipment is facilitated. And a gap between the rear cover and the connecting circuit board can be omitted, so that the electronic equipment is further thinned. And the lightness and thinness of the electronic equipment are greatly improved under the condition that the performance and the strength of the key are not influenced.

Description

Technical Field

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

[0002] Smartphones, tablets, smartwatches, and other electronic devices have become an integral part of our lives, ubiquitous in our daily routines, and have greatly improved people's living standards, becoming necessities in people's daily lives.

[0003] Electronic devices typically have buttons, such as power buttons, volume buttons, and camera buttons, which users can use to interact with or control the device. An electronic device may include a frame, with the buttons usually located on one side of the frame. Inside the frame, there is a raised barrier along its thickness. A flexible circuit board can be mounted on the side of the barrier facing the button. The first end of the button can protrude from this side frame, and the second end can extend to the flexible circuit board. When the button is pressed, the second end of the button abuts against the flexible circuit board, making the circuit on the flexible circuit board conductive. The flexible circuit board can be folded over the barrier and electrically connected to the main circuit board located below the barrier (on the side opposite to the button). The folded portion of the flexible circuit board increases the thickness, which is detrimental to the thinner and lighter design of the electronic device. Utility Model Content

[0004] This application provides a mid-frame and an electronic device. The layout of the connecting circuit board inside the mid-frame is reasonably designed, and the thickness of the mid-frame and the electronic device is effectively reduced without affecting the performance and strength of the buttons, thus meeting the requirements for the thin and light design of electronic devices.

[0005] A first aspect of this application provides an electronic device, including a frame and a first wall. The first wall is disposed inside the frame, and a first receiving cavity and a through-hole are provided between the first wall and the frame. The through-hole communicates with the first receiving cavity and is located on one side of the first receiving cavity along a first direction. The through-hole can be an opening of the first receiving cavity, connecting the inside and outside of the first receiving cavity.

[0006] The electronic device also includes a connecting circuit board. A first end of the connecting circuit board is located within a first receiving cavity and mounted on a first wall. A second end of the connecting circuit board passes through an opening along a first direction and is located outside the first receiving cavity. The first end of the connecting circuit board is used to engage with a button on the frame. The first direction intersects the movement direction of the button and the thickness direction of the frame. For example, the first direction can be the length (or width) direction of the electronic device. The connecting circuit board is used to recognize button operations. The first wall provides structural support for the connecting circuit board and the button, ensuring the interaction between the button and the connecting circuit board (such as an electronic switch) to achieve its function, and limiting further movement of the button.

[0007] The first receiving cavity has an opening along one side of the first direction for a connecting circuit board to pass through. The first end of the connecting circuit board is located inside the first receiving cavity, and the second end of the connecting circuit board can extend out of the first receiving cavity along the first direction through the opening to electrically connect with the main circuit board of the electronic device. The portion of the connecting circuit board between the first and second ends extends along the first direction. Along the thickness direction, the end face of the first wall facing away from the middle plate is not covered with the connecting circuit board, reducing the space occupied by the connecting circuit board and the first wall in the thickness direction, reducing the thickness of the middle frame and the connecting circuit board assembly, and facilitating the thinning of the electronic device. It also eliminates the need for a gap between the back cover and the connecting circuit board along the thickness direction, further reducing the thickness of the electronic device. While ensuring that the performance and strength of the buttons are not affected, the thickness of the electronic device can be effectively reduced, greatly improving its thinness and lightness, and meeting the design requirements for thin and light electronic devices.

[0008] In one possible implementation, the electronic device further includes a second wall disposed inside the frame, forming a second receiving cavity. This second receiving cavity can accommodate other structural components that cooperate with the button to meet the button's functional requirements. For example, the second receiving cavity can accommodate a pin to meet the button's mechanical tactile feedback requirements.

[0009] In one possible implementation, the electronic device further includes a connecting wall, one end of which is disposed on the outer surface of the second wall, and the other end of which is connected to the first wall.

[0010] A first wall, a connecting wall, and a portion of a second wall form a first receiving cavity. An opening is formed between the end of the first wall furthest from the connecting wall and the outer surface of the second wall. That is, the first wall can be connected to the second wall via the connecting wall, and the second wall and the first wall together form the first receiving cavity. The first and second receiving cavities share a portion of the second wall. This design improves the local compactness between the first and second receiving cavities, meeting the assembly requirements for connecting circuit boards, pins, and other structural components, while also reducing the space occupied by the layout and facilitating the placement of other structural components of the electronic device within the receiving space.

[0011] In one possible implementation, along the first direction, the vertical projection of the connecting wall at least partially overlaps with the vertical projection of the second wall. At least portions of the connecting wall and the second wall are sequentially distributed along the first direction, as are at least portions of the first and second accommodating cavities. This arrangement allows the first and second accommodating cavities to occupy more space along the first direction, and both cavities can be positioned relatively close to the frame to facilitate the assembly of buttons with the connecting circuit board in the first cavity and the pins in the second cavity. Furthermore, it frees up more space for the layout of other structural components within the electronic device.

[0012] In one possible implementation, along the movement direction of the button, the vertical projection of the first wall and the vertical projection of the second wall at least partially overlap. This allows portions of the first and second receiving cavities to be sequentially distributed along a second direction, i.e., along the second direction, the projections of the first and second receiving cavities overlap. This further improves the compactness of the layout of the first and second receiving cavities, facilitating the layout of other structural components of the electronic device within the receiving space.

[0013] In one possible implementation, the second wall includes a first shell wall, a second shell wall, a third shell wall, and a fourth shell wall, which are sequentially connected to form a second receiving cavity. The first and second shell walls are opposite to each other in a first direction, and the third and fourth shell walls are opposite to each other in the movement direction of the button. The third shell wall is located on the side of the fourth shell wall facing away from the frame. A connecting wall is connected to the outer surface of the first shell wall, and the connecting wall, at least a portion of the first shell wall, and the first wall form a first receiving cavity.

[0014] The first shell wall includes a first bent section, which is adjacent to and connected to the third shell wall. The inner surface of the first bent section is a first concave surface, and the outer surface of the first bent section is a first convex surface, so that the first bent section can be an arc-shaped transition section that bulges outward toward the second receiving cavity. The first bent section is located at the corner where the third shell wall and the first shell wall connect.

[0015] An opening is formed between the end of the first wall away from the connecting wall and the first convex surface. Compared with forming an opening between the end of the first wall away from the connecting wall and the outer surface of other structures of the first shell wall (such as the second bent section), this method makes reasonable use of the space occupied by the second shell wall in the second direction, and while ensuring the high compactness of the layout of the first and second receiving cavities, it is beneficial to increase the space of the first receiving cavity.

[0016] Compared to forming an opening between the end of the first wall away from the connecting wall and the outer surface of the third shell wall, this method is beneficial to reduce the space occupied by the first wall and the first accommodating space in the second direction. This allows for the assembly of the button with the connecting circuit board in the first accommodating cavity, while freeing up more space to accommodate the layout of other structural components within the electronic device.

[0017] In one possible implementation, the first shell wall further includes a second bent section, which is adjacent to and connected to the first bent section. The inner surface of the second bent section is a second convex surface, and the outer surface of the second bent section is a second concave surface, so that the second bent section can be an arc-shaped structure that bulges toward the second receiving cavity.

[0018] The second concave surface forms part of the inner surface of the first receiving cavity. That is, at least the second concave surface of the second bend section, together with the connecting wall and the first wall, forms the first receiving cavity. A reasonable layout of the first and second walls ensures that the first and second receiving cavities can meet the accommodating requirements of the connecting circuit board and plugs, etc., while further improving the compactness of the first and second receiving cavities and minimizing the space occupied by the first wall, the second wall, the first receiving cavity, and the second receiving cavity.

[0019] In one possible implementation, the second end of the connecting circuit board is fixed to the outer surface of the third shell wall. Using the third shell wall of the second body to fix the second end of the connecting circuit board eliminates the need for a separate structure to fix the connecting circuit board. This reduces the number of structural components within the middle frame's storage space, lowers the difficulty of layout design, and saves space to facilitate the layout of other structural components within the storage space.

[0020] The connecting circuit board also includes a third bent section located between the first end and the second end. The third bent section extends and bends along the first direction, passing through the opening. This allows the connecting circuit board to be distributed along the first direction as a whole. This reduces the space occupied by the connecting circuit board in the thickness direction, facilitating the thinning design of electronic devices.

[0021] In one possible implementation, the first wall has a plate-like shape. The side of the first wall facing the frame can be a plane, and the first end of the connecting circuit board is disposed on this plane. This provides stable support for the connecting circuit board and buttons, exhibiting high reliability and support strength.

[0022] The connecting wall includes a first segment and a second segment connected together. The first segment is adjacent to and connected to the first wall body, and the inner surface of the first segment is a third concave surface. The second segment is adjacent to and connected to the second wall body. The internal space of the first receiving cavity is rationally designed to ensure the spatial volume within the first receiving cavity to meet the accommodating requirements of the first end of the connecting circuit board.

[0023] In one possible implementation, the electronic device further includes a mounting port located at one end of the first receiving cavity along its thickness direction, and the mounting port communicates with the first receiving cavity and the through-hole. This facilitates the assembly of the connecting circuit board into the first receiving cavity and the through-hole via the mounting port.

[0024] In one possible implementation, the electronic device also includes a button disposed on the frame. The button is used to engage with the first end of the connecting circuit board, thereby enabling the recognition of button operations through the connecting circuit board.

[0025] The buttons include the power button.

[0026] In one possible implementation, a middle plate is also included, with a frame surrounding the middle plate, and a first wall and a second wall protruding from one side of the middle plate.

[0027] The first wall, second wall, middle plate, and frame together form an integrated structural component. This improves the strength of the first and second walls, providing stronger support for buttons, connecting circuit boards, etc., resulting in higher reliability and stability.

[0028] A second aspect of this application provides a mid-frame for use in an electronic device having buttons and a connecting circuit board, including a frame and a first wall, the first wall being disposed inside the frame, and a first receiving cavity and a through opening being provided between the first wall and the frame, the through opening communicating with the first receiving cavity, and the through opening being located on one side of the first receiving cavity along a first direction.

[0029] The first wall is used to support the first end of the connecting circuit board so that the first end of the connecting circuit board is accommodated in the first receiving cavity. The opening is used to allow the second end of the connecting circuit board to pass through along the first direction so that the second end of the connecting circuit board is located outside the first receiving cavity. The first direction intersects with the movement direction of the button and the thickness direction of the frame.

[0030] By providing an opening along one side of the first receiving cavity in the first direction for the connecting circuit board to pass through, the first end of the connecting circuit board is located inside the first receiving cavity, and the second end of the connecting circuit board can extend out of the first receiving cavity along the first direction through the opening to electrically connect with the main circuit board of the electronic device. This reduces the space occupied by the connecting circuit board and the first wall in the thickness direction, facilitating the thinning of the electronic device. It also eliminates the need for a clearance between the back cover and the connecting circuit board along the thickness direction, further reducing the thickness of the electronic device. While ensuring that the performance and strength of the buttons are not affected, the thickness of the electronic device can be effectively reduced, greatly improving its thinness and lightness, and meeting the design requirements for thin and light electronic devices.

[0031] In one possible implementation, the middle frame further includes a second wall disposed inside the frame, the second wall forming a second receiving cavity.

[0032] In one possible implementation, the middle frame further includes a connecting wall, one end of which is disposed on the outer surface of the second wall, and the other end of which is connected to the first wall. The first wall, the connecting wall, and part of the second wall form a first receiving cavity, and an opening is formed between the end of the first wall away from the connecting wall and the outer surface of the second wall.

[0033] In one possible implementation, along the first direction, the vertical projection of the connecting wall at least partially overlaps with the vertical projection of the second wall.

[0034] In one possible implementation, the vertical projection of the first wall body at least partially overlaps with the vertical projection of the second wall body along the direction of button movement.

[0035] In one possible implementation, the second wall includes a first shell wall, a second shell wall, a third shell wall, and a fourth shell wall, which are sequentially connected to form a second receiving cavity. The first and second shell walls are opposite to each other in a first direction, and the third and fourth shell walls are opposite to each other in the movement direction of the button. The third shell wall is located on the side of the fourth shell wall facing away from the frame. A connecting wall is connected to the outer surface of the first shell wall, and the connecting wall, at least a portion of the first shell wall, and the first wall form a first receiving cavity.

[0036] The first shell wall includes a first bent section, which is adjacent to and connected to the third shell wall. The inner surface of the first bent section is a first concave surface, and the outer surface of the first bent section is a first convex surface. An opening is formed between the first shell wall and the first convex surface.

[0037] In one possible implementation, the first shell wall further includes a second bent section, which is adjacent to and connected to the first bent section. The inner surface of the second bent section is a second convex surface, and the outer surface of the second bent section is a second concave surface. The second concave surface forms part of the inner surface of the first receiving cavity.

[0038] In one possible implementation, the first wall has a plate-like shape. The connecting wall includes a first segment and a second segment connected together, the first segment being adjacent to and connected to the first wall, the inner surface of the first segment being a third concave surface, and the second segment being adjacent to and connected to the first shell wall.

[0039] In one possible implementation, the middle frame also includes an assembly port located at one end of the first receiving cavity along the thickness direction, and the assembly port is connected to the first receiving cavity and the through port.

[0040] In one possible implementation, a middle plate is also included, with a frame surrounding the middle plate, and a first wall and a second wall protruding from one side of the middle plate. The first wall, the second wall, the middle plate, and the frame together constitute an integral structural component. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of an electronic device in a folded state, provided in an embodiment of this application.

[0042] Figure 2 for Figure 1 The diagram shows the electronic device in an intermediate state.

[0043] Figure 3 for Figure 1 The diagram shows the structure of the electronic device in a flattened state.

[0044] Figure 4 for Figure 1 A schematic diagram of the disassembled structure of the electronic device shown;

[0045] Figure 5 This is a schematic diagram of the assembly of the connection circuit board and the retaining wall of the electronic device in the related technology;

[0046] Figure 6 A partial structural diagram of the mid-frame of an electronic device provided in an embodiment of this application;

[0047] Figure 7 for Figure 6 A front view structural diagram of the assembly of the middle frame and the connecting circuit board;

[0048] Figure 8 for Figure 6 The front view of the middle frame;

[0049] Figure 9 for Figure 6 Another structural diagram showing the assembly of the middle frame and the connecting circuit board;

[0050] Figure 10 for Figure 7 A schematic diagram of the structure of the connecting circuit board.

[0051] Explanation of reference numerals in the attached figures:

[0052] 100 - Electronic devices;

[0053] 10-Middle frame;

[0054] 11-Frame; 12-Middle plate; 13-First wall; 131-First receiving cavity; 132-Opening; 133-Assembly opening;

[0055] 14-Second wall; 14a-Second receiving cavity; 141-First shell wall; 141a-First bent section; 141b-Second bent section;

[0056] 142 - Second shell wall; 143 - Third shell wall; 144 - Fourth shell wall;

[0057] 15-Connecting wall; 151-First segment; 152-Second segment;

[0058] 20 - Connecting circuit board; 20a - First end; 20b - Second end; 21 - Third bend section;

[0059] 30 - Hinge; 40 - Display screen; 50 - Back cover; 60 - Buttons; 60a - Power button; 60b - Volume buttons; 70 - Protective case. Detailed Implementation

[0060] The terminology used in the implementation section of this application is for the purpose of explaining specific embodiments of this application only, and is not intended to limit this application.

[0061] This application provides an electronic device, which may include, but is not limited to, mobile phones, tablet personal computers, laptops, ultra-mobile personal computers (UMPCs), handheld computers, touch TVs, walkie-talkies, netbooks, POS machines, personal digital assistants (PDAs), wearable devices (such as watches, bracelets, smartwatches, smart bracelets, etc.), virtual reality devices (VRs), mixed reality (MR) devices (such as VR glasses, AR glasses, AR helmets, VR helmets, MR helmets, etc.), in-vehicle devices, and other electronic devices with shells and buttons.

[0062] Among them, electronic devices can be non-foldable electronic devices. For example, taking a mobile phone as an example, an electronic device can be a candybar phone, such as a candybar horizontal screen phone or a candybar vertical screen phone, etc.

[0063] Alternatively, electronic devices can also be foldable. For example, a mobile phone can be a foldable foldable phone, such as a landscape foldable phone or a portrait foldable phone.

[0064] The electronic device is a foldable electronic device. For example, if it is a foldable phone, the foldable phone can be one where the display folds outwards. Alternatively, the foldable phone can be one where the display folds inwards. Or, the foldable phone can be one where part of the display folds inwards and part of the display folds outwards, etc.

[0065] In this embodiment of the application, the electronic device is a foldable electronic device, such as a foldable mobile phone with an inwardly folding display screen.

[0066] Figure 1 This is a schematic diagram of an electronic device in a folded state, as provided in an embodiment of this application. Figure 2 for Figure 1 The diagram shows the structure of the electronic device in an intermediate state.

[0067] Combination Figure 1 and Figure 2As shown, the electronic device 100 may include a hinge 30, a middle frame 10, and a display screen 40. The number of middle frames 10 may be at least two. For example, if there are two middle frames 10, they may be a first middle frame 10a and a second middle frame 10b. The first middle frame 10a and the second middle frame 10b may be located on both sides of the hinge 30, and the first middle frame 10a and the second middle frame 10b are respectively connected to the hinge 30.

[0068] See Figure 2 As shown, the display screen 40 can be mounted on the hinge 30 and the middle frame 10. For example, the display screen 40 can be located on the same side of the first middle frame 10a, the second middle frame 10b and the hinge 30. The part of the display screen 40 opposite to the first middle frame 10a (opposite in the thickness direction) can be laid flat on the first middle frame 10a, and the part of the display screen 40 opposite to the second middle frame 10b can be laid flat on the second middle frame 10b.

[0069] The hinge 30 can be a structural component used to connect two middle frames 10 and allow relative rotation between them. The first middle frame 10a and the second middle frame 10b can be rotatably engaged via the hinge 30, allowing them to rotate relative to each other, thereby enabling relative folding or unfolding of the first middle frame 10a and the second middle frame 10b, and allowing the electronic device 100 to switch between a folded state and a flattened state. The portion of the display screen 40 opposite to the hinge 30 can fold or unfold as the first middle frame 10a and the second middle frame 10b rotate.

[0070] The first middle frame 10a and the second middle frame 10b can be folded relative to each other to a closed state, see [reference]. Figure 1 As shown, for example, when the first middle frame 10a and the second middle frame 10b are in the closed state, they can be completely closed to be parallel to each other (a slight deviation is allowed). At this time, the electronic device 100 is in the closed state, also known as the folded state.

[0071] See Figure 2 As shown, the first middle frame 10a and the second middle frame 10b can rotate relative to each other (fold or unfold) to an intermediate state so that the electronic device 100 is in an intermediate state.

[0072] Figure 3 for Figure 1 The diagram shows the structure of the electronic device in a flattened state.

[0073] See Figure 3As shown, the first middle frame 10a and the second middle frame 10b can be unfolded to an open state relative to each other. For example, when the first middle frame 10a and the second middle frame 10b are in the open state, the unfolding angle between the first middle frame 10a and the pivot 30, and between the pivot 30 and the second middle frame 10b, can be approximately 180°. The electronic device 100 is in the open state, also known as the flattened state.

[0074] It should be noted that slight deviations are allowed in the angles illustrated in the embodiments of this application. For example, Figure 3 The unfolding angle (or flattening angle of the display screen 40) of the electronic device 100 shown can be 180° or approximately 180°, such as 170°, 175°, 185° or 190°.

[0075] in, Figure 2 The intermediate state shown can be any state between the folded state and the flattened state. That is, the electronic device 100 can switch between the flattened state (i.e., the open state) and the folded state (i.e., the closed state) by the movement of the pivot 30, thereby realizing the opening and closing of the electronic device 100.

[0076] In the embodiments of this application, for ease of description, see [reference needed]. Figure 3 As shown, the width direction of the middle frame 10 (such as the first middle frame 10a) is taken as the x-direction, the length direction of the middle frame 10 is taken as the y-direction, and the thickness direction of the middle frame 10 is taken as the z-direction. The width direction, length direction, and thickness direction can intersect each other. For example, the outer contour shape of the middle frame 10 can be a rectangle-like shape, and the width direction, length direction, and thickness direction can be perpendicular to each other.

[0077] It is understandable that when the electronic device 100 is in a folded or unfolded state, the width, length, and height directions of the electronic device 100 are aligned with the width, length, and height directions of the middle frame 10, respectively. (Refer to...) Figure 3 The x, y, and z directions are specified in the text. The length, width, and thickness in the embodiments of this application are for descriptive convenience only and do not imply any limitation on the dimensions. For example, the length can be greater than, equal to, or less than the width.

[0078] Of course, in some other examples, the outer contour shape of the middle frame 10 can also be a regular or irregular shape such as a square, circle, ellipse, or rounded rectangle.

[0079] It should be noted that the electronic device 100 may include only two middle frames 10. For example, the number of the first middle frame 10a and the second middle frame 10b may both be one, so that the electronic device 100 is in a folded state, with the first middle frame 10a and the second middle frame 10b folded relative to each other into two layers. For example, the electronic device 100 includes a first middle frame 10a, a second middle frame 10b, and a pivot 30. The first middle frame 10a and the second middle frame 10b are rotatably connected by the pivot 30. When the first middle frame 10a and the second middle frame 10b are folded relative to each other in the folded state, the electronic device 100 presents a form of two layers of middle frames 10 stacked together (see reference). Figure 1 (As shown).

[0080] Alternatively, the electronic device 100 may include two or more middle frames 10, such as the number of at least one of the first middle frame 10a and the second middle frame 10b, and the number of the pivots 30 may also be multiple. Adjacent first middle frames 10a and second middle frames 10b can be connected by a pivot 30, so that the electronic device 100 can be folded into a multi-layered form.

[0081] For example, the electronic device 100 may include two first middle frames 10a, one second middle frame 10b, and two pivots 30. The two first middle frames 10a are located on both sides of the second middle frame 10b, and each of the two first middle frames 10a is rotatably connected to the second middle frame 10b via a pivot 30. One of the first middle frames 10a can be folded relative to the second middle frame 10b, and the other first middle frame 10a can also be folded relative to the second middle frame 10b, so that the electronic device 100 is in a folded state. The first middle frames 10a and the second middle frame 10b are folded relative to each other to form a three-layer stacked middle frame 10. When one of the first middle frames 10a and the second middle frame 10b are unfolded relative to each other to a flattened state, the electronic device 100 is in a flattened state.

[0082] For a foldable electronic device with an outward-folding display, the display 40 can be disposed on the outer surfaces of the first middle frame 10a, the second middle frame 10b, and the hinge 30. For a foldable electronic device with an inward-folding display, the display 40 can be disposed on the inner surfaces of the first middle frame 10a, the second middle frame 10b, and the hinge 30.

[0083] When the electronic device 100 is in a folded state, the two adjacent and opposite surfaces of the first middle frame 10a and the second middle frame 10b can be the inner surfaces of the first middle frame 10a and the second middle frame 10b, respectively. The surface of the rotating shaft 30 that is on the same side as the inner surfaces of the first middle frame 10a and the second middle frame 10b is the inner surface of the rotating shaft 30. The two opposite surfaces of the first middle frame 10a and the second middle frame 10b are the outer surfaces of the first middle frame 10a and the second middle frame 10b, respectively. The surface of the rotating shaft 30 that is on the same side as the outer surfaces of the first middle frame 10a and the second middle frame 10b is the outer surface of the rotating shaft 30.

[0084] In this embodiment of the application, the electronic device 100 includes two housings, a first middle frame 10a and a second middle frame 10b, and the first middle frame 10a and the second middle frame 10b are rotatably coupled through a rotating shaft 30.

[0085] Figure 4 for Figure 1 The diagram shows the disassembled structure of the electronic device.

[0086] See Figure 4 As shown, the electronic device 100 may also include a back cover 50. The display screen 40 and the back cover 50 may be located on opposite sides of the middle frame 10 along the thickness direction (such as the z direction). The back cover 50, the display screen 40 and the middle frame 10 together form a receiving space, which can be used to assemble and receive various structural components of the electronic device 100.

[0087] The side of the display screen 40 facing away from the back cover 50 can serve as the display surface of the electronic device 100. The back cover 50 can serve as the exterior cover of the back of the electronic device 100, protecting the various structural components within the storage space of the electronic device 100 and enhancing the aesthetics of the electronic device 100.

[0088] The middle frame 10 may include a middle plate 12 and a border 11. For example, the middle plate 12 may be a plate-like structural component, and the border 11 may be a frame-like structural component. For instance, taking the outer contour shape of the middle frame 10 as a rectangle, the middle plate 12 may be a flat plate structure with a rectangular outer contour, and the border 11 may be a ring-shaped frame structure with a rectangular outer contour. The border may be set around the middle plate.

[0089] For example, the first middle frame 10a may include a first middle plate 12a and a first side frame 11a, with the first side frame 11a surrounding the outer peripheral edge of the first middle plate 12a. The second middle frame 10b may also include a second middle plate 12b and a second side frame 11b, with the second side frame 11b surrounding the outer peripheral edge of the second middle plate 12b. The pivot 30 may be connected to both the first middle plate 12a and the second middle plate 12b.

[0090] The two opposite sides of the frame 11 along the thickness direction (e.g., the z-direction) can be respectively assembled with the back cover 50 and the display screen 40. The middle plate 12 can provide an assembly place for the various structural components within the housing space and enhance the strength of the middle frame.

[0091] It should be noted that the middle plate 12 and the frame 11 can be formed separately, and the middle plate 12 and the frame 11 can be fixed together by welding, snap-fitting, gluing or other methods. Alternatively, the middle plate 12 and the frame 11 can also be formed as a single piece.

[0092] The electronic device 100 may also include a main circuit board (not shown in the figure), which may be fixed within the aforementioned receiving space. For example, the main circuit board may be disposed on the side of the middle plate facing the rear cover 50.

[0093] The main circuit board can be used to realize electrical connections or electrical insulation between various electronic components within an electronic device. For example, the main circuit board may include a processor, which may include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, a display processing unit (DPU), and / or a neural network processing unit (NPU), etc.

[0094] The controller can serve as the nerve center and command center of the electronic device 100. The controller can generate operation control signals based on the instruction opcode and timing signals to control instruction fetching and execution. The processor can also include memory for storing instructions and data.

[0095] The processor may include one or more interfaces, which can be used to connect a charger to charge the electronic device 100, and the interfaces can also be used to enable data transmission between the electronic device 100 and external devices, such as connecting headphones, a projection device, etc.

[0096] The electronic device may also include buttons 60, which enable interaction between the user and the electronic device, allowing the user to control the electronic device by operating the buttons 60. For example, the electronic device may have a power button 60a, which allows the user to control functions such as turning the device off, on, turning on the display screen, and turning the display screen off.

[0097] The electronic device may also have volume buttons 60b, which allow users to adjust the volume, select electronic device functions, switch electronic device functions, control the display interface, and display content.

[0098] For example, button 60 can be located on the border 11 of the middle frame 10, for example... Figure 4 As shown, a power button 60a and a volume button 60b are respectively provided on the frame 11 of the first middle frame 10a.

[0099] It should be noted that the border 11 can be a frame structure formed by multiple interconnected frames. For example, taking the first middle frame 10a as an example, the border 11a can include frames 111a extending in the length direction (e.g., the y-direction) and frames 111b extending in the width direction (e.g., the x-direction). The button 60 can be disposed on the frame 111a, such as... Figure 4 As shown, a power button 60a and a volume button 60b are provided on the frame 111a of the border 11a.

[0100] Alternatively, button 60 can also be located on frame 111b, or some buttons 60 can be located on frame 111a and some buttons 60 can be located on frame b.

[0101] Button 60 can be movably mounted on the frame 11 for user operation. For example, button 60 can move towards or away from the receiving space enclosed by the frame 10. For instance, a user can press button 60 to move it towards the receiving space. After the pressure is released, button 60 can move in the opposite direction away from the frame 11 towards the outside of the receiving space, thus resetting.

[0102] In this embodiment, the movement direction of button 60 when it is pressed, moving towards the receiving space, is taken as the movement direction of button 60. For example, using... Figure 4 Taking a frame 111a, which includes the middle frame 11a, as an example, on which a button 60 is provided, when the button 60 is pressed, the button 60 can move toward the receiving space enclosed by the frame 11. The moving direction of the button 60 can be the width direction (such as the x direction).

[0103] The button 60 may include a pressing end and a connecting end opposite each other in the direction of movement (e.g., the x-direction). The pressing end of the button 60 may be exposed on the outer side of the frame 11 (facing away from the receiving space). In some embodiments, the pressing end of the button 60 may be provided to protrude from the outer side of the frame 11 to facilitate the user pressing the pressing end of the button 60. The connecting end of the button 60 may extend into the receiving space.

[0104] Of course, in some other examples, the pressing end of button 60 may not protrude from the outer side of frame 11, such as the end face of the pressing end being flush with the outer side of frame 11.

[0105] The electronic device 100 may further include a connection circuit board (not shown), which can be mounted within a receiving space. For example, a first end of the connection circuit board may be located on one side of the connection end of the button 60. An electronic switch may be provided on the first end of the connection circuit board, and the connection end of the button 60 may mate with the first end of the connection circuit board. For instance, the connection end of the button 60 may mate with the electronic switch on the first end, enabling the electronic switch to detect movement of the button 60. A second end of the connection circuit board may be electrically connected to a main circuit board within the receiving space.

[0106] For example, when button 60 is not pressed, the connection end of button 60 cooperates with the electronic switch, and the electronic switch is in the off state. When button 60 is pressed, button 60 moves towards the receiving space, and the connection end of button 60 can act on the electronic switch, causing the electronic switch to be in the closed state and generating an electrical signal. The connecting circuit board can transmit this electrical signal to the main circuit board, so that the main circuit board can recognize the pressing operation on button 60 according to the electrical signal, thereby realizing the control of electronic device 100, and allowing the user to interact with electronic device 100 through button 60.

[0107] The structures illustrated in the embodiments of this application do not constitute a specific limitation on the electronic device 100. In other embodiments of this application, the electronic device 100 may include more or fewer components than illustrated, or combine some components, or split some components, or arrange the components differently. For example, the electronic device 100 may also include a communication module, a camera module (e.g., a front-facing camera and a rear-facing camera), a microphone, a speaker, a flash, and other devices.

[0108] Figure 5 This is a schematic diagram of the assembly of the connection circuit board and the retaining wall of the electronic device in the related technology.

[0109] To ensure the reliability and tactile feel of the buttons, a baffle is usually installed within the space enclosed by the middle frame. For example, see... Figure 5 As shown, the retaining wall 201 can be protruded along the thickness direction (e.g., the z direction) on the side of the middle plate (not shown in the figure) facing the rear cover. Along the moving direction of the button (not shown in the figure) (e.g., the x direction), the retaining wall 201 can be located inside the partial frame (not shown in the figure) (the side facing the receiving space), and there is a gap between the retaining wall 201 and the partial frame to form a receiving cavity.

[0110] The main circuit board is located outside the accommodating cavity enclosed by the retaining wall 201. Along the direction of movement (e.g., the x-direction), the main circuit board is typically located on the side of the retaining wall facing away from the frame (or button). The first end of the connecting circuit board 202 can be located inside the accommodating cavity and fixedly mounted on the retaining wall 201. When the button is pressed, it moves towards the retaining wall and cooperates with the connecting circuit board (e.g., an electronic switch) on the retaining wall. The retaining wall provides sufficient support for the connecting circuit board and the button, ensuring the interaction between the button and the connecting circuit board (e.g., the electronic switch) to achieve its function, and also restricting further movement of the button. The connecting circuit board 202 can be a flexible circuit board. The second end of the connecting circuit board 202 can be flipped over the retaining wall 201 along the protruding wall (protruding along the thickness z-direction) and electrically connected to the main circuit board located outside the accommodating cavity.

[0111] Along the thickness direction (e.g., the z-direction), the end face of the retaining wall 201 facing away from the middle plate has a partially folded connecting circuit board 202, which increases the space occupied in the thickness direction and increases the thickness of the middle frame and electronic equipment. In order to avoid damage to the connecting circuit board 202 by the back cover, a certain gap needs to be maintained between the back cover and the partially folded connecting circuit board 202 on the end face of the retaining wall when assembling the back cover with the middle frame, etc., which leads to a further increase in the thickness of the middle frame and electronic equipment, which is not conducive to the thin and light design of electronic equipment.

[0112] Based on this, this application provides a mid-frame and an electronic device. A first wall of the mid-frame is disposed inside the frame. A first receiving cavity and a through-hole are located between the first wall and the frame. The through-hole communicates with the first receiving cavity and is located on one side of the first receiving cavity along a first direction (e.g., the length or width direction). A first end of a connecting circuit board is located inside the first receiving cavity and disposed on the first wall. A second end of the connecting circuit board passes through the through-hole along the first direction and is disposed outside the first receiving cavity. The first end of the connecting circuit board is used to cooperate with a button on the frame. The first wall provides structural support for the connecting circuit board and the button, ensuring the interaction between the button and the connecting circuit board (e.g., an electronic switch) to achieve its function and limiting further movement of the button. The first receiving cavity has an through-hole along the first direction for the connecting circuit board to pass through. The second end of the connecting circuit board can then extend through the through-hole along the first direction to the outside of the first receiving cavity and electrically connect to the main circuit board of the electronic device. The portion of the connecting circuit board located between the first and second ends extends along a first direction. Along the thickness direction, the end face of the first wall facing away from the middle plate is not covered by the connecting circuit board, reducing the space occupied by the connecting circuit board and the first wall in the thickness direction, and reducing the thickness of the middle frame and connecting circuit board assembly, thus facilitating the thinning of the electronic device. It also eliminates the need for a gap between the back cover and the connecting circuit board along the thickness direction, further reducing the thickness of the electronic device. While ensuring that the performance and strength of the buttons are not affected, the thickness of the electronic device can be effectively reduced, greatly improving its thinness and lightness, and meeting the requirements for thin and light design of electronic devices.

[0113] Figure 6 This is a partial structural diagram of the mid-frame of an electronic device provided in an embodiment of this application.

[0114] See Figure 6 As shown, the middle frame 10 may include the border 11 and the middle plate 12. It should be noted that... Figure 6 The figure only shows a part of the structure of the middle frame 10. For example, taking the power button 60a on the side 11a of the first middle frame 10a in the above-mentioned electronic device as an example, the middle frame 10 shown in the figure can be a partial structural example of the first middle frame 10a at the position where the power button 60a is assembled.

[0115] The frame 11 may include opposing inner and outer sides, such as along the movement direction of the button (e.g., the x-direction), with the inner and outer sides located on opposite sides of the frame 11. The inner side of the frame 11 can be fixedly assembled with the middle plate 12, and the inner side of the frame 11 can be used to enclose the receiving space of the electronic device. The outer side of the frame 11 can serve as part of the exterior surface of the electronic device.

[0116] The middle frame 10 may also include a first wall 13, which is disposed inside the frame 11 and within the receiving space enclosed by the frame 11. The first wall 13 may protrude from the middle plate 12 along the thickness direction (e.g., the z-direction). For example, the first wall 13 may protrude from the side of the middle plate 12 facing the rear cover.

[0117] The first wall 13 and the frame 11 have a first receiving cavity 131 and an opening 132. The opening 132 is connected to the first receiving cavity 131 and can be an opening of the first receiving cavity 131, connecting the inside and outside of the first receiving cavity 131.

[0118] The main circuit board (not shown) of the electronic device is disposed within the receiving space enclosed by the frame 11. For example, the main circuit board may be disposed on the side of the middle plate 12 facing the rear cover. It is understood that the main circuit board is located outside the first receiving cavity 131. Exemplarily, along the movement direction of the button (such as the x-direction), the main circuit board may be located on the side of the first wall 13 facing away from the button (frame 11).

[0119] In some examples, the first wall 13 may form a first receiving cavity 131 with other structural members inside the frame 11 (such as the second wall 14 in the figure).

[0120] Alternatively, in some examples, the first wall 13 is located inside the frame 11, and there may be a certain gap between the first wall 13 and the inner side of the frame 11, so that the first wall 13 and the frame 11 can form a first receiving cavity 131. Alternatively, in some examples, the first wall 13 itself can form the first receiving cavity 131.

[0121] The opening 132 is located on one side of the first receiving cavity 131 along a first direction, which may intersect the movement direction of the button and the thickness direction of the frame 11 (e.g., the z-direction). The thickness direction of the frame 11 is the same as the thickness direction of the middle frame 10 (e.g., the z-direction). Figure 4 The first middle frame 10a shown has a power button 60a on its border 11a. For example, if a frame 111a extending along the length direction (e.g., the y-direction) has a power button 60a, the movement direction of the button 60a can be the width direction (e.g., the x-direction). The movement direction of the button can also be defined as a second direction.

[0122] See also Figure 6As shown, the first direction can intersect with the second direction (e.g., the x-direction) and the thickness direction of the frame 11 (e.g., the z-direction). For example, the first direction can be perpendicular to the second direction (e.g., the x-direction) and the thickness direction of the frame 11 (e.g., the z-direction). The first direction can be consistent with the length direction of the middle frame 10, as shown in the y-direction. The opening 132 can be located on one side of the first receiving cavity 131 along the y-direction.

[0123] Of course, in some other examples, the first direction may form an angle of not 90° with the second direction (such as the x direction) and the thickness direction of the border 11 (such as the z direction). The first direction may intersect with the second direction (such as the x direction) and the thickness direction (such as the z direction) but not be perpendicular.

[0124] Figure 7 for Figure 6 A front view structural diagram of the assembly of the middle frame and the connecting circuit board.

[0125] The first receiving cavity 131 can accommodate a connection circuit board 20 configured to recognize key operations. See below. Figure 7 As shown, the first end 20a of the connecting circuit board 20 can be located inside the first receiving cavity 131, and the first end 20a of the connecting circuit board 20 can be fixedly mounted on the first wall 13. The second end 20b of the connecting circuit board 20 can extend through the through-hole 132 to the outside of the first receiving cavity 131, so that the second end 20b of the connecting circuit board 20 can be electrically connected to the main circuit board (not shown in the figure) outside the first receiving cavity 131.

[0126] A button (not shown in the figure) is provided on the frame 11. The connection end of the button can extend into the first receiving cavity 131, such as the connection end of the button can extend to the first end 20a side of the connecting circuit board 20.

[0127] When the button is pressed, it can move towards the receiving space, that is, towards the first end 20a of the connecting circuit board 20 and the first wall 13. This allows the button's connection end to interact with the first end 20a of the connecting circuit board 20 (such as with an electronic switch on the first end 20a) to generate an electrical signal, thereby enabling the main circuit board to recognize the button press operation. The first wall 13 provides structural support for the connecting circuit board 20 and the button, ensuring the interaction between the button and the connecting circuit board 20 (such as an electronic switch) to achieve its function, and restricting further movement of the button.

[0128] The first receiving cavity 131 has an opening 132 on one side along the first direction (such as the y direction) for the connecting circuit board 20 to pass through. The first end 20a of the connecting circuit board 20 is located inside the first receiving cavity 131, and the second end 20b of the connecting circuit board 20 can extend through the opening 132 along the first direction (such as the y direction) to the outside of the first receiving cavity 131 and be electrically connected to the main circuit board.

[0129] The portion of the connecting circuit board 20 located between the first end 20a and the second end 20b extends along a first direction (e.g., the y-direction). Along the thickness direction (e.g., the z-direction), the end face of the first wall 13 facing away from the middle plate 12 is not covered by the connecting circuit board 20. This reduces the space occupied by the connecting circuit board 20 and the first wall 13 in the thickness direction (e.g., the z-direction), reducing the thickness of the middle frame 10 and the connecting circuit board 20 assembly, thus facilitating the thinning of the electronic device. It also eliminates the need for a gap between the back cover and the connecting circuit board 20 along the thickness direction (e.g., the z-direction), further reducing the thickness of the electronic device. In this way, without affecting the performance and strength of the buttons, the thickness of the electronic device can be effectively reduced, greatly improving its thinness and lightness, and meeting the design requirements for thin and light electronic devices.

[0130] In some examples, combined Figure 6 and Figure 7 As shown, the middle frame 10 may further include a second wall 14, which is disposed inside the frame 11 and within the receiving space enclosed by the frame 11. The second wall 14 may protrude from the middle plate 12 along the thickness direction (e.g., the z-direction), and the second wall 14 and the first wall 13 may be located on the same surface of the middle plate 12. For example, the second wall 14 may also protrude from the surface of the middle plate 12 facing the rear cover.

[0131] The second wall 14 can form a second receiving cavity 14a. The second receiving cavity 14a can be used to accommodate other structural components that cooperate with the button to meet the functional requirements of the button. For example, the second receiving cavity 14a can accommodate a pin to meet the mechanical feel requirements of the button.

[0132] Of course, in some other examples, the second receiving cavity 14a can also be used to receive other structural components of the electronic device.

[0133] The first wall 13 is located outside the second receiving cavity 14a of the second wall 14, and the first wall 13 may be located on one side of the second wall 14. For example, the first wall 13 and the second wall 14 may form the first receiving cavity 131 described above.

[0134] For example, the middle frame 10 may also include a connecting wall 15, which may be located inside the frame 11 and within the receiving space enclosed by the frame 11. The connecting wall 15 may protrude from the middle plate 12 along the thickness direction (e.g., the z-direction), and the connecting wall 15, the second wall 14, and the first wall 13 may be located on the same surface of the middle plate 12. For example, the connecting wall 15 may also protrude from the surface of the middle plate 12 facing the rear cover.

[0135] The side of the second wall 14 facing away from the second receiving cavity 14a can be the outer surface of the second wall 14, and one end of the connecting wall 15 can be connected to the outer surface of the second wall 14. The other end of the connecting wall 15 can be connected to the first wall 13, so that the first wall 13, the connecting wall 15 and the second wall 14 are connected together, and the first wall 13, the connecting wall 15 and part of the second wall 14 can form the first receiving cavity 131. The end of the first wall 13 away from the connecting wall 15 can form an opening 132 between it and the outer surface of the second wall 14.

[0136] That is, the first wall 13 can be connected to the second wall 14 via the connecting wall 15, and the second wall 14 and the first wall 13 form a first receiving cavity 131. The first receiving cavity 131 and the second receiving cavity 14a share the second wall 14. This improves the local compactness between the first receiving cavity 131 and the second receiving cavity 14a, and while meeting the accommodating and assembly requirements of structural components such as the connecting circuit board 20 and plugs, it also helps to reduce the space occupied by the layout and facilitates the layout of other structural components of the electronic device within the receiving space.

[0137] In the second direction (such as the x direction), the connecting wall 15 and the first wall 13 can be distributed sequentially. Among the connecting wall 15 and the first wall 13, the connecting wall 15 can be set closer to the frame 11, and the first wall 13 can be set further away from the frame 11.

[0138] There are gaps between the connecting wall 15, the second wall 14, and the frame 11. The electronic device may also include injection molded parts (not shown in the figure), which can be filled in the gaps between the connecting wall 15, the second wall 14, and the frame 11. This helps to increase the strength of the first wall 13, the second wall 14, the connecting wall 15, and the frame 11, improve the support strength for the buttons, and increase the strength of the middle frame, ensuring high reliability of the buttons and the electronic device.

[0139] See in some examples Figure 7As shown, along the first direction (e.g., the y-direction), the vertical projection of the connecting wall 15 at least partially overlaps with the vertical projection of the second wall 14. This allows at least portions of the connecting wall 15 and the second wall 14 to be sequentially distributed along the first direction (e.g., the y-direction). At least portions of the first receiving cavity 131 and the second receiving cavity 14a can be sequentially distributed along the first direction (e.g., the y-direction), allowing the first and second receiving cavities to occupy more space along the first direction (e.g., the y-direction). Both the first and second receiving cavities can be positioned relatively close to the frame 11 to facilitate the assembly of buttons with the connecting circuit board 20 in the first receiving cavity 131 and the pins in the second receiving cavity 14a. This also frees up more space for the layout of other structural components within the electronic device.

[0140] For example, along a second direction (e.g., the x-direction), the vertical projection of the first wall 13 can at least partially overlap with the vertical projection of the second wall 14. This allows portions of the first receiving cavity 131 and the second receiving cavity 14a to be sequentially distributed along the second direction (e.g., the x-direction), meaning that along the second direction (e.g., the x-direction), the projections of the first receiving cavity 131 and the second receiving cavity 14a partially overlap. This can further improve the compactness of the layout of the first receiving cavity 131 and the second receiving cavity 14a, facilitating the layout of other structural components of the electronic device within the receiving space.

[0141] Alternatively, in some examples, the connecting wall 15 and the first wall 13 can be located entirely on one side of the second wall 14 along a first direction (e.g., the y-direction), and the vertical projections of the first wall 13 and the second wall 14 along a second direction (e.g., the x-direction) may not overlap. The first receiving cavity 131 and the second receiving cavity 14a can be sequentially distributed along the first direction (e.g., the y-direction), and the projections of the first receiving cavity 131 and the second receiving cavity 14a along the second direction (e.g., the x-direction) may not overlap.

[0142] Alternatively, in some other examples, along the second direction (e.g., the x-direction), the connecting wall 15 and the first wall 13 can be located entirely on the side of the second wall 14 facing away from the button (frame 11), and along the first direction (e.g., the y-direction), the vertical projections of the connecting wall 15 and the second wall 14 do not overlap. This allows the first receiving cavity 131 and the second receiving cavity 14a to be sequentially distributed along the second direction (e.g., the x-direction), occupying more space in the second direction (e.g., the x-direction). This enriches the layout design and enhances applicability.

[0143] It is understandable that the relative positions and layout of the first wall 13, the connecting wall 15 and the second wall 14 can be selected and set according to the layout requirements of each structural component in the middle frame 10, the size of the space in the middle frame 10 and the actual design requirements.

[0144] In some examples, the first wall 13, the second wall 14, and the connecting wall 15 can be integrally formed, that is, the first wall 13, the second wall 14, and the connecting wall 15 can form a single integral structural component.

[0145] The integrated structural component formed by the first wall 13, the second wall 14 and the connecting wall 15 can be assembled onto the middle plate 12 by means of adhesive connection, threaded connection, snap-fit ​​fixation and other methods.

[0146] Alternatively, in some examples, the first wall 13, the second wall 14, the connecting wall 15, and the middle plate 12 can be integrally formed to constitute a single structural component, which helps to improve the strength of the first wall 13 and the second wall 14, enhance the support strength for buttons, connecting circuit boards 20, etc., and achieve high reliability and stability.

[0147] Understandably, in the example where the middle plate 12 and the frame 11 are integrally formed, the first wall 13, the second wall 14, the connecting wall 15, the middle plate 12 and the frame 11 can be integrally formed to form an integral structural component, which can provide high-strength support for buttons, connecting circuit boards, etc., and increase the strength of the middle frame 10, resulting in higher reliability and stability.

[0148] Of course, in some examples, at least two of the first wall 13, the second wall 14, the connecting wall 15 and the middle plate 12 can be formed independently and assembled together by means of adhesive connection, threaded connection, snap-fit ​​fixation or other methods.

[0149] In this embodiment, the structure and shape of the connecting wall 15, the first wall 13, and the second wall 14 are illustrated by the example that the vertical projection of the connecting wall 15 (along a first direction, such as the y-direction) at least partially overlaps with the vertical projection of the second wall 14 (along a first direction, such as the y-direction), and the vertical projection of the first wall 13 (along a second direction, such as the x-direction) at least partially overlaps with the vertical projection of the second wall 14 (along a second direction, such as the x-direction). When the relative positions and arrangement of the first wall 13, the connecting wall 15, and the second wall 14 are other than those in this embodiment, the structure and shape of the connecting wall 15, the first wall 13, and the second wall 14 may be the same as in this embodiment, or they may be different.

[0150] For example, see [link to example]. Figure 7 As shown, the outer contour shape of the first wall 13 can be a flat plate-like shape. For example, the first wall 13 can be a flat plate-like structure that protrudes along the thickness direction (such as the z-direction) on one side of the middle plate 12. The side of the first wall 13 facing the frame 11 (button) can be a plane, and the first end 20a of the connecting circuit board 20 is disposed on this plane. It can provide stable support for the connecting circuit board 20 and the button, and has high reliability and support strength.

[0151] Figure 8 for Figure 6 The front view of the middle frame.

[0152] For example, see Figure 8 As shown, the second wall 14 may include a first shell wall 141, a second shell wall 142, a third shell wall 143 and a fourth shell wall 144, which can be connected end to end in sequence to form a second receiving cavity 14a.

[0153] In this configuration, along a first direction (e.g., the y-direction), the first shell wall 141 and the second shell wall 142 can be arranged opposite each other. Along a second direction (e.g., the x-direction), the third shell wall 143 and the fourth shell wall 144 can be arranged opposite each other, with the third shell wall 143 located on the side of the fourth shell wall 144 facing away from the frame 11. Of the two shell walls, the fourth shell wall 144 can be arranged closer to the frame 11, and the third shell wall 143 can be arranged further away from the frame 11.

[0154] Along the first direction (such as the y direction), the connecting wall 15 can be located outside the first shell wall 141, and one end of the connecting wall 15 can be connected to the outer surface of the first shell wall 141 (the side facing away from the second receiving cavity 14a), so that the connecting wall 15, at least part of the first shell wall 141 and the first wall body 13 together form the first receiving cavity 131.

[0155] The first shell wall 141 may include a first bent segment 141a, which may be located at the end of the first shell wall 141 closest to the third shell wall 143, and may be adjacent to and connected to the third shell wall 143. In this embodiment, the bent segment refers to a part of the structure that extends in a curved and folded manner, rather than in a linear manner, and the outer contour shape of this part of the structure is bent.

[0156] The inner surface of the first bent segment 141a can be the side of the first bent segment 141a facing the second receiving cavity 14a, and the inner surface of the first bent segment 141a is used to form the second receiving cavity 14a. The outer surface of the first bent segment 141a can be the side of the first bent segment 141a facing away from the second receiving cavity 14a.

[0157] The inner surface of the first bent section 141a can be a first concave surface, and the outer surface of the first bent section 141a can be a first convex surface, so that the first bent section 141a can be an arc-shaped transition section that protrudes outward toward the second receiving cavity 14a. The first bent section 141a can serve as a transition section connecting the third shell wall 143 and other structures of the first shell wall 141 (such as the second bent section 141b, etc.), and the first bent section 141a is located at the corner where the first shell wall 141 and the third shell wall 143 are connected.

[0158] An opening 132 is formed between the end of the first wall 13 away from the connecting wall 15 and the first convex surface of the first bent section 141a. If the end of the first wall 13 away from the connecting wall 15 does not extend to the first convex surface of the first bent section 141a, there is a gap between the end of the first wall 13 away from the connecting wall 15 and the first convex surface of the first bent section 141a to form the opening 132.

[0159] Compared with the opening 132 formed between the end of the first wall 13 away from the connecting wall 15 and the outer surface of other structures of the first shell wall 141 (such as the second bent section 141b, etc.), the space occupied by the second shell wall 142 in the second direction (such as the x direction) is reasonably utilized. Under the condition of ensuring the high compactness of the layout of the first receiving cavity 131 and the second receiving cavity 14a, it is beneficial to increase the space of the first receiving cavity 131.

[0160] Compared to forming an opening 132 between the end of the first wall 13 away from the connecting wall 15 and the outer surface of the third shell wall 143, it is beneficial to reduce the space occupied by the first wall 13 and the first receiving cavity 131 in the second direction (such as the x direction), which makes it easier to realize the layout of other structural components in the electronic device by freeing up more space while assembling the button with the connecting circuit board in the first receiving cavity 131.

[0161] In some examples, the first shell wall 141 may also include a second bend segment 141b, which may be a portion of the first shell wall 141 adjacent to the first bend segment 141a, and the second bend segment 141b is adjacent to and connected to the first bend segment 141a.

[0162] The inner surface of the second bent section 141b can be the side of the second bent section 141b facing the second receiving cavity 14a, and the inner surface of the second bent section 141b can be used to form the second receiving cavity 14a. The outer surface of the second bent section 141b can be the side of the second bent section 141b facing away from the second receiving cavity 14a.

[0163] The inner surface of the second bent section 141b can be a second convex surface, and the outer surface of the second bent section 141b can be a second concave surface, so that the second bent section 141b can be an arc-shaped structure that protrudes into the second receiving cavity 14a.

[0164] The second concave surface of the second bent segment 141b can form part of the inner surface of the first receiving cavity 131, that is, at least the second concave surface of the second bent segment 141b, the connecting wall 15, and the first wall 13 enclose the first receiving cavity 131. A reasonable layout of the first wall 13 and the second wall 14 ensures that the first receiving cavity 131 and the second receiving cavity 14a can meet the accommodating requirements of the connecting circuit board and plugs, while further improving the compactness of the first receiving cavity 131 and the second receiving cavity 14a, and minimizing the space occupied by the first wall 13, the second wall 14, the first receiving cavity 131, and the second receiving cavity 14a.

[0165] For example, the first shell wall 141 may also include a fourth bent segment 141c, which may be located at the end of the first shell wall 141 closest to the fourth shell wall 144, and may be adjacent to and connected to the fourth shell wall 144.

[0166] The inner surface of the fourth bending segment 141c can be the side of the fourth bending segment facing the second receiving cavity 14a, and the inner surface of the fourth bending segment 141c can be a fourth concave surface, so that the fourth bending segment 141c can be an arc-shaped transition segment that bulges outward toward the second receiving cavity 14a.

[0167] The fourth bend segment 141c can serve as a transition segment connecting the second bend segment 141b of the first shell wall 141 and the fourth shell wall 144. The fourth bend segment 141c is located at the corner where the first shell wall 141 and the fourth shell wall 144 connect. The internal space of the second receiving cavity 14a is rationally designed to ensure the volume within the second receiving cavity 14a to meet the accommodating requirements of structures such as the latch.

[0168] In some examples, see further. Figure 8 As shown, the connecting wall 15 may include a first segment 151 and a second segment 152 connected to each other. The first segment 151 may be located at the end of the connecting wall 15 closest to the first wall body 13, and the first segment 151 may be adjacent to and connected to the first wall body 13. The second segment 152 may be located at the end of the connecting wall 15 closest to the first shell wall 141, and the second segment 152 may be adjacent to and connected to the first shell wall 141.

[0169] The inner surface of the first segment 151 can be a third concave surface. The internal space of the first receiving cavity 131 is reasonably designed to ensure the volume of the space within the first receiving cavity 131 so as to meet the accommodating requirements of the first end of the connecting circuit board.

[0170] For example, the first end of the connecting circuit board may have a fitting (not shown in the figure). The first end of the connecting circuit board can cooperate with the connection end of the button through the fitting. For example, the fitting can be a button bracket to fix the position of the button and ensure that the electronic switch on the first end of the connecting circuit board is closed when the button is pressed, and that the button returns to its original position when the pressing force is removed. The first receiving cavity 131 formed by the third concave surface and the second concave surface can easily accommodate the above-mentioned fitting and ensure the performance of the button.

[0171] In some examples, combined Figure 7 and Figure 8 As shown, the connecting wall 15, the first wall 13, and at least part of the first shell wall 141 form a first receiving cavity 131. Along the thickness direction (such as the z direction), one side of the first receiving cavity 131 may also have an assembly port 133. The assembly port 133 can communicate with the first receiving cavity 131 and the through port 132, so as to facilitate the assembly of the connecting circuit board into the first receiving cavity 131 and the through port 132 through the assembly port 133.

[0172] For example, see Figure 7 As shown, when assembling the connecting circuit board 20 and the middle frame 10, the first end 20a of the connecting circuit board 20 is housed in the first receiving cavity 131 through the assembly port 133, a part of the connecting circuit board 20 passes through the through port 132, and the second end 20b of the connecting circuit board 20 is located outside the first receiving cavity 131.

[0173] Figure 9 for Figure 6 Another structural diagram showing the assembly of the middle frame and the connecting circuit board.

[0174] For example, in combination Figure 8 and Figure 9 As shown, the first receiving cavity 131 and the second receiving cavity 14a are distributed in the first direction (e.g., the y-direction), see [reference]. Figure 9 As shown, the second end 20b of the connecting circuit board 20 passes through the opening 132 and is placed outside the first receiving cavity 131. This allows the connecting circuit board 20 to be fixed to the wall of the second receiving cavity 14a. For example, the second end 20b of the connecting circuit board 20 can be fixed to the outer surface of the third shell wall 143, thereby fixing the connecting circuit board 20 and preventing it from colliding with other structural components or affecting the layout of other structural components.

[0175] The second end 20b of the connecting circuit board 20 is fixed by the third shell wall 143 of the second wall 14, without the need to add a structure to fix the connecting circuit board 20. This helps to reduce the number of structural components in the accommodating space of the middle frame 10, reduce the difficulty of layout design, and save space to facilitate the layout of other structural components in the accommodating space.

[0176] For example, the connection board 20 can be a printed circuit board (PCB). For instance, the connection board 20 can be a flexible printed circuit board (FPC), or, in some examples, the connection board 20 can also be a rigid printed circuit board.

[0177] Figure 10 for Figure 7 A schematic diagram of the structure of the connecting circuit board.

[0178] Taking the connecting circuit board 20 as an example, which is a flexible circuit board, see [link / reference]. Figure 10 As shown, the connecting circuit board 20 may also include a third bending section 21, which may be connected to the first end 20a and the second end 20b of the connecting circuit board 20 respectively.

[0179] Combination Figure 9 As shown, the first end 20a of the connecting circuit board 20 is located inside the first receiving cavity 131, and the second end 20b of the connecting circuit board 20 is located outside the first receiving cavity 131. The third bent section 21 of the connecting circuit board 20 can be inserted into the through-hole 132. The third bent section 21 can bend and extend through the through-hole 132 along the first direction (such as the y-direction), so that the connecting circuit board 20 can be distributed and extended as a whole in the first direction (such as the y-direction). This reduces the space occupied by the connecting circuit board 20 in the thickness direction (such as the z-direction), reduces the height of the middle frame 10 and the connecting circuit board 20 assembly, and facilitates the thinning design of electronic devices.

[0180] For example, the bending method of the third bending segment 21 can be matched with the bending method of the first convex surface of the first bending segment. For instance, the third bending segment 21 can be an arc-shaped segment that bends away from the first convex surface.

[0181] Of course, in some examples, the bending method of the third bending segment 21 may not match the bending method of the first convex surface. The third bending segment 21 can be bent and extended along the first direction (such as the y direction) and the third bending segment 21 can be inserted into the opening 132.

[0182] In some examples, the connecting circuit board 20 may also include other structural components to meet the requirements of the button function. For example, an elastic element (not shown in the figure) may also be provided on the first end 20a of the connecting circuit board 20 to ensure that the button can be reset when the pressing force on the button is removed.

[0183] For example, the first end 20a of the connecting circuit board 20 may also have a reinforcing plate 22, and the first end 20a of the connecting circuit board 20, the electronic switch, the elastic element, etc. can all be fixed on the reinforcing plate 22.

[0184] In some examples, electronic device 100 may also include a protective case 70 (see Figure 9 As shown, the protective shell 70 can be placed on the first end 20a of the connecting circuit board 20. The protective shell 70 can cover the assembly port 133 on one side of the first receiving cavity 131. The protective shell 70 can protect the electronic switches, elastic components, etc. on the first end 20a of the connecting circuit board 20.

[0185] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances. The terms "first," "second," "third," "fourth," etc. (if present) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0186] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An electronic device (100), characterized in that, include: Border (11); A first wall (13) is disposed inside the frame (11). The first wall (13) and the frame (11) have a first receiving cavity (131) and a through opening (132). The through opening (132) communicates with the first receiving cavity (131) and is located on one side of the first receiving cavity (131) along a first direction. A connecting circuit board (20) is provided. The first end (20a) of the connecting circuit board (20) is located inside the first receiving cavity (131) and is disposed on the first wall (13). The second end (20b) of the connecting circuit board (20) passes through the opening (132) along the first direction and is disposed outside the first receiving cavity (131). The first end (20a) of the connecting circuit board (20) is used to cooperate with the button (60) on the frame (11). The first direction intersects the moving direction of the button and the thickness direction of the frame (11).

2. The electronic device (100) according to claim 1, characterized in that, It also includes a second wall (14), which is disposed inside the frame (11) and forms a second receiving cavity (14a).

3. The electronic device (100) according to claim 2, characterized in that, It also includes a connecting wall (15), one end of which is disposed on the outer surface of the second wall (14), and the other end of which is connected to the first wall (13); The first wall (13), the connecting wall (15), and a portion of the second wall (14) form the first receiving cavity (131), and the opening (132) is formed between the end of the first wall (13) away from the connecting wall (15) and the outer surface of the second wall (14).

4. The electronic device (100) according to claim 3, characterized in that, Along the first direction, the vertical projection of the connecting wall (15) at least partially overlaps with the vertical projection of the second wall (14).

5. The electronic device (100) according to claim 4, characterized in that, Along the direction of button movement, the vertical projection of the first wall (13) at least partially overlaps with the vertical projection of the second wall (14).

6. The electronic device (100) according to claim 5, characterized in that, The second wall (14) includes a first shell wall (141), a second shell wall (142), a third shell wall (143), and a fourth shell wall (144). The first shell wall (141), the second shell wall (142), the third shell wall (143), and the fourth shell wall (144) are connected in sequence to form the second receiving cavity (14a). The first shell wall (141) and the second shell wall (142) are opposite to each other in the first direction. The third shell wall (143) and the fourth shell wall (144) are opposite to each other in the movement direction of the button. The third shell wall (143) is located on the side of the fourth shell wall (144) that is away from the frame (11). The connecting wall (15) is connected to the outer surface of the first shell wall (141), and the connecting wall (15), at least a portion of the first shell wall (141) and the first wall body (13) form the first receiving cavity (131); The first shell wall (141) includes a first bent section (141a), which is adjacent to and connected to the third shell wall (143). The inner surface of the first bent section (141a) is a first concave surface, and the outer surface of the first bent section (141a) is a first convex surface. The opening (132) is formed between the first wall (13) and the first convex surface.

7. The electronic device (100) according to claim 6, characterized in that, The first shell wall (141) further includes a second bent section (141b), which is adjacent to and connected to the first bent section (141a). The inner surface of the second bent section (141b) is a second convex surface, and the outer surface of the second bent section (141b) is a second concave surface. The second concave surface forms part of the inner surface of the first receiving cavity (131).

8. The electronic device (100) according to claim 7, characterized in that, The second end (20b) of the connecting circuit board (20) is fixed to the outer surface of the third shell wall (143); The connecting circuit board (20) further includes a third bending section (21) located between the first end (20a) and the second end (20b), the third bending section (21) extending in a bending direction and passing through the opening (132).

9. The electronic device (100) according to any one of claims 3-8, characterized in that, The shape of the first wall (13) includes a plate-like shape; The connecting wall (15) includes a first segment (151) and a second segment (152) connected together. The first segment (151) is adjacent to and connected to the first wall body (13). The inner surface of the first segment (151) is a third concave surface. The second segment (152) is adjacent to and connected to the second wall (14).

10. The electronic device (100) according to any one of claims 1-8, characterized in that, It also includes an assembly port (133), which is located at one end of the first receiving cavity (131) along the thickness direction, and the assembly port (133) is connected to the first receiving cavity (131) and the through port (132).

11. The electronic device (100) according to any one of claims 2-8, characterized in that, It also includes a middle plate (12), and the frame (11) is arranged around the middle plate (12); The first wall (13) and the second wall (14) protrude from one side of the middle plate (12); The first wall (13), the second wall (14), the middle plate (12), and the frame (11) together constitute an integrated structural component.

12. A mid-frame (10) for use in an electronic device (100) having buttons (60) and a connecting circuit board (20), characterized in that, include: Border (11); A first wall (13) is disposed inside the frame (11). The first wall (13) and the frame (11) have a first receiving cavity (131) and a through opening (132). The through opening (132) communicates with the first receiving cavity (131) and is located on one side of the first receiving cavity (131) along a first direction. The first wall (13) is used to support the first end (20a) of the connecting circuit board (20) so that the first end (20a) of the connecting circuit board (20) is accommodated in the first receiving cavity (131). The through (132) is used to allow the second end (20b) of the connecting circuit board (20) to pass through along the first direction so that the second end (20b) of the connecting circuit board (20) is located outside the first receiving cavity (131). The first direction intersects the moving direction of the button and the thickness direction of the frame (11).

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