Folding electronic apparatus

Abstract

The present application relates to a folding electronic apparatus. The folding electronic apparatus comprises a first middle frame, a second middle frame, an electronic device and a magnet assembly, wherein the second middle frame is rotatably connected to the first middle frame, the electronic device is arranged in the first middle frame or the second middle frame, the first middle frame and the second middle frame are attracted to each other by means of the magnet assembly, the magnet assembly comprises a first magnet, the first magnet is arranged on the electronic device, and only a clearance distance between the first magnet and the electronic device is formed between the first magnet and the electronic device, so that an occupied space of the first magnet and the electronic device in the folding electronic apparatus in a first direction and a second direction is reduced, the space utilization rate in the folding electronic apparatus is increased, and thus a larger mounting space is provided for the first magnet or the electronic device in the first direction and the second direction, such that the size of the first magnet or the electronic device may be designed to be larger, so as to enhance the performance of the first magnet or the electronic device, and improve the use experience of a user.

Description

Foldable electronic device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on July 27, 2023, with application number 202310936589.5 and invention name “A foldable electronic device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of terminal technology, and in particular to a foldable electronic device. Background Art

[0003] With the continuous development of electronic technology, mobile phones, laptops, tablets, and other terminal devices are becoming increasingly integrated into people's lives. People are becoming more and more accustomed to watching videos, checking current events, and enjoying movies, TV shows, and sports events on these devices. To achieve larger display screens and enhance the viewing experience, foldable electronic devices are becoming increasingly popular.

[0004] Currently, foldable electronic devices typically include two relatively rotatable middle frames to enable the foldable electronic device to have a closed state and an unfolded state. When the foldable electronic device is closed, a certain force is required to maintain its closed state and closed feel. Magnets are typically installed on the two middle frames so that the two middle frames can attract each other through the magnets to achieve a secure connection and a good feel when the foldable electronic device is closed. However, the magnets are often large, and other electronic components are usually installed on the middle frames. The magnets are installed on the middle frames with a certain distance between them and the other electronic components. This distance is determined by the wall thickness of the middle frames, the fitting clearance, etc., which affects the arrangement of components in the foldable electronic device and reduces the space utilization inside the foldable electronic device.

[0005] Application Contents

[0006] The present application provides a foldable electronic device to solve the problem that the above-mentioned magnets installed on the middle frame reduce the space utilization inside the foldable electronic device.

[0007] An embodiment of the present application provides a foldable electronic device, including a first middle frame, a second middle frame, an electronic device and a magnet assembly, wherein the second middle frame is rotatably connected to the first middle frame, the electronic device is arranged in the first middle frame or the second middle frame, the first middle frame and the second middle frame are attracted to each other through the magnet assembly, the magnet assembly includes a first magnet, and the first magnet is arranged on the electronic device.

[0008] In the present application, the first magnet is arranged on the electronic device. In the internal space of the foldable electronic device, the gap distance n between the first magnet and the electronic device is only included, thereby eliminating the thickness of the first middle frame of the spacing part between the first magnet and the electronic device, and also eliminating the gap distance between the electronic device and the first middle frame of the spacing part and the gap distance between the first magnet and the first middle frame of the spacing part. The space occupied by the first magnet and the electronic device in the first and second directions in the foldable electronic device is reduced, and the space utilization rate inside the foldable electronic device is improved, so that the first magnet or the electronic device can have more installation space in the first and second directions, so that the volume of the first magnet or the electronic device can be designed to be larger, thereby improving the performance of the first magnet or the electronic device and improving the user experience.

[0009] In one possible design, the electronic device is provided with a groove, and the first magnet is arranged in the groove, thereby reducing the stacking space of the electronic device and the first magnet in the third direction, reducing the thickness of the foldable electronic device in the third direction, and facilitating the lightweight design of the foldable electronic device in the third direction. The setting of the groove can limit the magnet in the first direction and the second direction, preventing the first magnet from displacing in the plane, thereby improving the fixing effect of the first magnet in the groove and enhancing the structural stability of the foldable electronic device.

[0010] In one possible design, the groove includes a sidewall with a glue-receiving groove recessed in the sidewall. By dispensing glue in the glue-receiving groove, the first magnet located in the groove can be bonded to the sidewall of the groove, thereby increasing the tolerance of the first magnet within the groove. This allows even a smaller first magnet to be securely fixed in the groove, further improving the fixing effect of the first magnet within the groove, and enabling first magnets of different sizes to be stably located in the first groove, further enhancing the structural stability of the foldable electronic device.

[0011] In one possible design, the depth of the glue groove is d, 0.14mm≤d≤0.16mm. When the depth d of the glue groove satisfies 0.14mm≤d≤0.16mm, the depth of the glue groove is moderate and the volume of glue that can be accommodated is sufficient, so that the first magnet can be firmly connected to the side wall of the groove and is not easy to fall off, thereby improving the fixing effect of the first magnet in the groove and improving the structural stability of the foldable electronic device. In addition, the glue groove of this depth is easy to process, has low process requirements, and is not likely to cause waste of glue material, making it easy to fill the glue groove with glue dispenser, reducing manufacturing costs.

[0012] In one possible design, along the third direction of the foldable electronic device, the height of the glue groove is h1, 0.6mm≤h1≤0.8mm. When the height h1 of the glue groove satisfies 0.6mm≤h1≤0.8mm, the volume of the glue groove can be ensured to be moderate, and the volume of glue contained can be sufficient, thereby ensuring the bonding effect between the first magnet and the side wall of the groove, making it difficult for the first magnet to fall off from the groove, and improving the structural stability of the foldable electronic device. The glue groove of this depth is also easy to process, has low process requirements, and is not prone to glue overflow, saving materials and reducing manufacturing costs.

[0013] In one possible design, the groove further includes a bottom wall, with a gap between the bottom wall and the first magnet. By applying glue within the gap, the first magnet in the groove can be bonded to the bottom wall, further enhancing the fixing of the first magnet within the groove and the structural stability of the foldable electronic device.

[0014] In one possible design, along the third direction of the foldable electronic device, the distance of the gap is L, and 0.1mm≤L≤0.15mm. When the gap distance L satisfies 0.1mm≤L≤0.15mm, a glue layer of moderate thickness is present between the first magnet and the bottom wall of the groove, thereby enhancing the bonding strength between the first magnet and the bottom wall, improving the bonding effect of the first magnet within the groove, and making it difficult for the first magnet to detach from the groove. This improves the structural stability of the foldable electronic device, can meet the design requirements of a lighter and thinner foldable electronic device, and is relatively low in cost.

[0015] In one possible design, a boss is provided in the groove, and the boss is protruding from the bottom wall along the third direction of the foldable electronic device, so as to limit the displacement of the first magnet in the third direction, thereby ensuring that there is sufficient gap between the first magnet and the lowest point of the bottom wall in the third direction, thereby ensuring that the thickness of the glue layer is sufficient to ensure the bonding strength between the first magnet and the bottom wall, and improving the fixing effect of the first magnet in the groove.

[0016] In one possible design, the boss is protruding from the corner of the bottom wall. This ensures a sufficient gap distance L between the first magnet and the middle portion of the bottom wall in the third direction, ensures the thickness of the glue layer, increases the bonding area between the first magnet and the bottom wall, further improves the bonding strength between the first magnet and the bottom wall, and further enhances the fixing effect of the first magnet in the groove.

[0017] In one possible design, along the third direction of the foldable electronic device, the height of the boss is h2, where 0.05mm≤h2≤0.08mm. When the boss height h2 satisfies 0.05mm≤h2≤0.08mm, a sufficient gap L between the first magnet and the bottom wall can be ensured, thereby ensuring sufficient glue layer thickness to ensure bonding strength between the first magnet and the bottom wall, improving the fixing effect of the first magnet in the groove without wasting glue. This also facilitates the design requirements for a lighter and thinner foldable electronic device.

[0018] In one possible design, the electronic device is an audio component, which includes an upper cover, a core and a lower cover. The core and the upper cover form a front cavity, and the core, the lower cover and the upper cover form a rear cavity. At least a portion of the upper cover is recessed into the rear cavity to form the groove.

[0019] In this solution, at least part of the upper cover is recessed into the rear cavity to form the above-mentioned groove, which can reduce the thickness of the foldable electronic device in the third direction, which is conducive to the lightweight design of the foldable electronic device in the third direction. If the volume of the original first magnet is kept unchanged and the volume of the electronic device is designed to be larger, the electronic device as an audio component can have a larger rear cavity, thereby improving the bass effect of the electronic device, improving the audio performance of the foldable electronic device, and improving the user experience.

[0020] In one possible design, the lower cover is provided with an avoidance groove, and at least the portion of the upper cover that is recessed into the rear cavity is located in the avoidance groove, thereby ensuring the depth of the groove in the third direction, so as to enhance the limiting effect of the groove on the first magnet inside it, and further reduce the stacking space between the first magnet and the upper cover and lower cover in the third direction, thereby further reducing the thickness of the foldable electronic device in the third direction, which is conducive to the lightweight and thin design of the foldable electronic device in the third direction.

[0021] In one possible design, the magnet assembly also includes a second magnet, which is arranged in one of the first middle frame or the second middle frame, and the first magnet is arranged in the other of the first middle frame or the second middle frame. The first middle frame and the second middle frame are attracted by the first magnet and the second magnet, thereby ensuring that the foldable electronic device has a better feel when closed, and after closing, the first middle frame and the second middle frame can be stably connected to ensure the structural stability of the foldable electronic device.

[0022] It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic structural diagram of a foldable electronic device in the prior art in an unfolded state;

[0024] FIG2 is a schematic structural diagram of a foldable electronic device provided by the present application in an unfolded state;

[0025] FIG3 is a schematic diagram of a partial structure of the foldable electronic device in FIG2 ;

[0026] FIG4 is an exploded schematic diagram of FIG3 ;

[0027] FIG5 is another exploded schematic diagram of FIG3 ;

[0028] FIG6 is a top view of the electronic device and the first magnet in FIG3 ;

[0029] FIG7 is a cross-sectional view taken along the AA direction in FIG6;

[0030] FIG8 is a cross-sectional view taken along line BB in FIG6 ;

[0031] FIG9 is a cross-sectional view taken along the CC direction of FIG6;

[0032] FIG10 is a partial enlarged view of point D in FIG7 ;

[0033] FIG11 is a top view of the upper cover in FIG5 ;

[0034] FIG12 is a schematic structural diagram of the groove in FIG11 in another embodiment.

[0035] Figure 1: 1'-first middle frame; 2'-second middle frame; 3'-electronic component; 41'-first magnet; 42'-second magnet; 43'-third magnet; 44'-fourth magnet; 1-first middle frame; 11-recessed portion; 12-sound hole; 2-second middle frame; 3-electronic component; 31-upper cover; 311-groove; 312-side wall; 313-glue groove; 314-bottom wall; 315-gap; 316-boss; 317-sound channel; 32-core; 33-lower cover; 331-avoidance groove; 34-front cavity; 35-rear cavity; 4-magnet assembly; 41-first magnet; 42-second magnet; 43-third magnet; 44-fourth magnet; 5-rotating shaft; X-first direction; Y-second direction; Z-third direction.

[0036] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0037] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0038] In the description of this application, unless otherwise specified or limited, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0039] In a specific embodiment, the present application is further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0040] With the continuous development of electronic technology, mobile phones, laptops, tablets, and other terminal devices are becoming increasingly integrated into people's lives. People are becoming more and more accustomed to watching videos, checking current events, and enjoying movies, TV shows, and sports events on these devices. To achieve larger display screens and enhance the viewing experience, foldable electronic devices are becoming increasingly popular.

[0041] Please refer to Figure 1, which is a schematic diagram of the structure of a foldable electronic device in the unfolded state in the prior art. As shown in Figure 1, the existing foldable electronic device generally includes a first middle frame 1' and a second middle frame 2' that are relatively rotatable, so that the foldable electronic device has a closed state and an unfolded state. When the foldable electronic device is closed, a certain force is required to maintain its closed state and closed feel. Usually, magnets are installed on the first middle frame 1' and then the second middle frame 2'. For example, a first magnet 41' and a third magnet 43' are set on the first middle frame 1', and a second magnet 42' and a fourth magnet 44' are set on the second middle frame 2', so that the two middle frames can attract each other through the first magnet 41' and the second magnet 42' and the third magnet 43' and the fourth magnet 44' to achieve a firm connection and a good feel of the foldable electronic device in the closed state.

[0042] However, the volume of the magnet is often large, and other electronic devices 3' are usually installed on the first middle frame 1' or the second middle frame 2'. As shown in Figure 1, the first magnet 41' and the electronic device 3' are arranged on the first middle frame 1', and there is a certain distance between the first magnet 41' and the electronic device 3'. This distance includes the gap distance a of the first middle frame 1' in the space between the electronic device 3' and the first middle frame 1', the thickness b of the first middle frame 1' in the space between the first magnet 41' and the electronic device 3', and the gap c between the first magnet 41' and the first middle frame 1' in the space. This takes up a lot of space in the first direction X and the second direction Y inside the electronic device, which can easily affect the arrangement of other components in the foldable electronic device and reduce the space utilization inside the foldable electronic device.

[0043] In order to solve the above technical problems, the embodiments of the present application provide a foldable electronic device, which includes any device with a foldable screen function, such as a mobile phone, a tablet computer, a personal digital assistant (PDA), a laptop computer, an in-vehicle computer, a foldable display device, a foldable display screen, a wearable device, etc. The embodiments of the present application do not impose any special restrictions on the specific form of the above electronic devices. For the convenience of explanation, the following description is based on the foldable electronic device being a foldable mobile phone as an example. The electronic device of the present application is introduced below with specific embodiments.

[0044] Please refer to Figure 2, which is a schematic diagram of the structure of a foldable electronic device provided by this application in the unfolded state. As shown in Figure 2, the foldable electronic device includes a first middle frame 1, a second middle frame 2, and a hinge 5. The first middle frame 1 and the second middle frame 2 are rotatably connected by the hinge 5. When the first middle frame 1 and the second middle frame 2 rotate around the hinge 5 and approach each other, the foldable electronic device can be transformed from the unfolded state to the closed state, thereby reducing the overall size of the foldable electronic device and making it easier for users to carry.

[0045] Furthermore, an electronic device 3 may be provided on the first middle frame 1 or the second middle frame 2 to enable the foldable electronic device to have multiple functions and good performance. The electronic device 3 may be a voice recognition module, a camera module, an audio component, etc., without limitation. In the embodiment of the present application, the electronic device 3 is an audio component as an example for explanation, and in the specific embodiment shown in Figure 2, the electronic device 3 is provided on the first middle frame 1.

[0046] Furthermore, as shown in FIG2 , the foldable electronic device further includes a magnetic assembly 4 . When the foldable electronic device is in a closed state, the first middle frame 1 and the second middle frame 2 are attracted by the magnetic assembly 4 , thereby achieving a firm connection and a good feel in the folded state.

[0047] The magnet assembly 4 may include multiple magnets, which are respectively arranged on the first middle frame 1 and the second middle frame 2 to improve the attraction stability of the first middle frame 1 and the second middle frame 2. Of course, the magnet assembly 4 may also include a block structure made of a portion of magnets and a portion of a material that can be attracted by magnets. The block structure and the magnets are respectively arranged on the first middle frame 1 and the second middle frame so that their positions are relative, so that they can attract each other when the foldable electronic device is closed. After closing, the first middle frame 1 and the second middle frame 2 can be stably connected, and the cost is lower. This is not limited here.

[0048] Exemplarily, as shown in Figure 2, the magnet assembly 4 includes a first magnet 41, a second magnet 42, a third magnet 43 and a fourth magnet 44. The first magnet 41 and the third magnet 43 are arranged on the first middle frame 1, and the second magnet 42 and the fourth magnet 44 are arranged on the second middle frame 2. The first magnet 41 and the second magnet 42 are positioned relative to each other and have opposite magnetic properties. The third magnet 43 and the fourth magnet 44 are positioned relative to each other and have opposite magnetic properties. Therefore, when the foldable electronic device is closed, the first magnet 41 and the second magnet 42 are attracted to each other, and the third magnet and the fourth magnet are attracted to each other, thereby ensuring that the foldable electronic device has a better feel when closed, and after closing, the first middle frame 1 and the second middle frame 2 can be stably connected to ensure the structural stability of the foldable electronic device.

[0049] Furthermore, the first magnet 41, the second magnet 42, the third magnet 43 and the fourth magnet 44 of the magnet assembly 4 can be arranged on the electronic device 3 located on the same middle frame to reduce the spacing distance between the magnets and the electronic device 3, reduce the space occupied by the magnets and the electronic device 3 in the first direction X and the second direction Y in the foldable electronic device, and improve the space utilization inside the foldable electronic device.

[0050] Exemplarily, as shown in FIG2 , the electronic device 3 and the first magnet 41 in the magnet assembly 4 are both disposed on the first middle frame 1 , wherein the electronic device 3 is connected to the first middle frame 1 , and the first magnet 41 is connected to the electronic device 3 .

[0051] Compared with the prior art in which the first magnet 41 and the electronic device 3 are spaced apart on the first middle frame 1, in this embodiment, as shown in Figure 2, the first magnet 41 is arranged on the electronic device 3. In the internal space of the foldable electronic device, the gap distance n between the first magnet 41 and the electronic device 3 only includes the gap distance n between the first magnet 41 and the electronic device 3, thereby eliminating the thickness of the first middle frame 1 in the spaced portion between the first magnet 41 and the electronic device 3, and also eliminating the gap distance between the electronic device 3 and the first middle frame 1 in the spaced portion and the gap distance between the first magnet 41 and the first middle frame 1 in the spaced portion. This reduces the space occupied by the first magnet 41 and the electronic device 3 in the first direction X and the second direction Y in the foldable electronic device, thereby improving the space utilization inside the foldable electronic device, so that the first magnet 41 or the electronic device 3 can have more installation space in the first direction X and the second direction Y, thereby making the volume of the first magnet 41 or the electronic device 3 larger, thereby improving the performance of the first magnet 41 or the electronic device 3 and improving the user experience.

[0052] Among them, as shown in Figure 2, if the overall volume of the original electronic device 3 is kept unchanged and the volume of the first magnet 41 is designed to be larger in the first direction X and the second direction Y, the area of ​​the first magnet 41 in the first direction X and the second direction Y is larger, the magnetism is better, and it is more conducive to the first magnet 41 and the second magnet 42 provided on the second middle frame 2 to attract each other, thereby improving the feel of the foldable electronic device when it is unfolded or closed, and can further ensure the firm connection of the foldable electronic device in the closed state, thereby improving the user experience.

[0053] As shown in Figure 2, if the volume of the original first magnet 41 is kept unchanged and the volume of the electronic device 3 is designed to be larger, taking the electronic device 3 as an audio component as an example, the electronic device 3 as an audio component can have a larger back cavity, or can achieve the installation of a larger core, thereby further improving the sound effect of the audio component, improving the audio performance of the foldable electronic device, and improving the user experience.

[0054] Further, referring to Figures 3 and 4 , Figure 3 is a schematic diagram of a portion of the structure of the foldable electronic device in Figure 2 , and Figure 4 is an exploded schematic diagram of Figure 3 . As shown in Figure 4 , a hollowed-out recess 11 is provided on the first middle frame 1 , and at least a portion of the electronic device 3 is located within this recess 11 . A groove 311 is provided on the side of the electronic device 3 facing the first magnet 41 , and the first magnet 41 is disposed within this groove 311 .

[0055] In this embodiment, as shown in Figure 4, the structure can reduce the stacking space of the electronic device 3, the first middle frame 1 and the first magnet 41 in the third direction Z, reduce the thickness of the foldable electronic device in the third direction Z, and is conducive to the lightweight design of the foldable electronic device in the third direction Z. The setting of the groove 311 can limit the magnet 41 in the first direction X and the second direction Y, preventing the first magnet 41 from displacing in the plane, thereby improving the fixing effect of the first magnet 41 in the groove 311 and improving the structural stability of the foldable electronic device.

[0056] As shown in Figure 2, in order to facilitate the fixation of the second magnet 42, the third magnet 43 and the fourth magnet 44 installed on the first middle frame 1 and the second middle frame 2 in the magnet assembly 4, and to reduce the thickness of the foldable electronic device in the third direction, corresponding grooves can be opened on the first middle frame 1 and the second middle frame 2 so that the second magnet 42, the third magnet 43 and the fourth magnet 44 are located in the grooves.

[0057] For example, as shown in Figure 2, in the magnet assembly 4, the first magnet 41, the second magnet 42, the third magnet 43 and the fourth magnet 44 are all roughly rectangular, and some of them are designed with rounded corners. The magnet structure is simple and easy to process and form. It is also convenient to open corresponding grooves on the first middle frame 1, the second middle frame 2 and the electronic device 3, thereby reducing the preparation cost.

[0058] For example, as shown in FIG4 , the first magnet 41 can also be configured to be roughly L-shaped, and the groove 311 on the electronic device 3 matches the shape of the first magnet 41, which can further enhance the limiting effect on the first magnet 41 and prevent the first magnet 41 from rotating in the groove 311, thereby further enhancing the fixing effect of the first magnet 41 in the groove 311 and improving the structural stability of the foldable electronic device.

[0059] Of course, the shapes of the individual magnets of the magnet assembly 4 (such as the first magnet 41, the second magnet 42, the third magnet 43 and the fourth magnet 44) can also be parallelograms, trapezoids, triangles, circles, ellipses, T-shaped, etc. or other irregular shapes, and the shapes of the individual magnets can be the same or different. The shape of the groove corresponding to each magnet is matched with the shape of the magnet arranged inside it to improve the design freedom of the foldable electronic device, which is not restricted here.

[0060] Furthermore, taking the electronic device 3 as an audio component as an example, please refer to Figures 5 to 9, Figure 5 is another exploded schematic diagram of Figure 3, Figure 6 is a top view of part of the structure in Figure 3, Figure 7 is a cross-sectional view of Figure 6 along the AA direction, Figure 8 is a cross-sectional view of Figure 6 along the BB direction, and Figure 9 is a cross-sectional view of Figure 6 along the CC direction.

[0061] As shown in FIG5 , the electronic device 3 as an audio component includes an upper cover 31 , a core 32 and a lower cover 33 . The upper cover 31 is connected to the lower cover 33 , and the core 32 is disposed between the upper cover 31 and the lower cover 33 .

[0062] As shown in FIG7 , electronic device 3 further includes a sound cavity formed by upper cover 31 and lower cover 33. The inner core 32 divides the sound cavity into a front cavity 34 and a rear cavity 35. Specifically, the inner core 32 and upper cover 31 form the front cavity 34, while the inner core 32, lower cover 33, and upper cover 31 form the rear cavity 35. As shown in FIG7 and FIG8 , at least a portion of the upper cover 31 is recessed into the rear cavity 35 to form the aforementioned groove 311.

[0063] In this embodiment, as shown in FIG8 , at least a portion of the upper cover 31 is recessed into the rear cavity 35 to form the above-mentioned groove 311, which can reduce the thickness of the foldable electronic device in the third direction Z, and is conducive to the lightweight design of the foldable electronic device in the third direction Z. If the volume of the original first magnet 41 is kept unchanged, the volume of the electronic device 3 can be designed to be larger, and the electronic device 3 as an audio component can have a larger rear cavity 35, thereby improving the bass effect of the electronic device 3, improving the audio performance of the foldable electronic device, and improving the user experience.

[0064] Furthermore, as shown in Figures 5, 7 and 8, an avoidance groove 331 is provided on the lower cover 33, and at least the portion of the upper cover 31 that is recessed into the rear cavity 35 is located in the avoidance groove 331, thereby ensuring the depth of the groove 311 in the third direction Z, so as to enhance the limiting effect of the groove 311 on the first magnet 41 therein, and further reduce the stacking space between the first magnet 41 and the upper cover 31 and the lower cover 33 in the third direction Z, thereby further reducing the thickness of the foldable electronic device in the third direction Z, which is conducive to the lightweight and thin design of the foldable electronic device in the third direction Z.

[0065] Furthermore, as shown in Figure 9, a sound outlet channel 317 connected to the front cavity 34 is provided on the side of the upper cover 31. The sound outlet channel 317 is connected to the sound outlet hole 12 provided on the first middle frame 1 in Figure 5, so that the front cavity 34 of the electronic device 3 can be connected to the outside world through the sound outlet channel 317 and the sound outlet hole 12 in turn to ensure the sound output effect of the electronic device 3.

[0066] Further, please refer to Figure 10, which is a partial enlarged view of point D in Figure 7. As shown in Figure 10, a glue receiving groove 313 is recessed on the side wall 312 of the groove 311, and the glue receiving groove 313 is used to receive glue.

[0067] In this embodiment, as shown in Figure 10, by dispensing glue in the glue groove 313, the first magnet 41 located in the groove 311 can be bonded to the side wall 312 of the groove 311, thereby improving the fault tolerance of the first magnet 41 in the groove 311, so that the first magnet 41 with a smaller volume can still be firmly fixed in the groove 311, further improving the fixing effect of the first magnet 41 in the groove 311, and enabling first magnets 41 of different sizes to be stably located in the first groove 311, further improving the structural stability of the foldable electronic device.

[0068] 10 , the depth of the adhesive groove 313 is d, and satisfies 0.14 mm ≤ d ≤ 0.16 mm. For example, d can be 0.14 mm, 0.15 mm, 0.16 mm, etc., and can be designed according to actual needs and is not limited here.

[0069] As shown in Figure 10, the depth d of the glue groove 313 cannot be too deep or too shallow. If the depth d of the glue groove 313 is too deep, for example, d>0.16mm, the amount of glue required to be filled is too much, and too much glue is easily overflowed, which easily causes waste of materials. In addition, when dispensing glue into the glue groove 313, it is not easy to fill the glue groove 313, which reduces the bonding effect of the first magnet 41 in the groove 311. In addition, if the glue groove 313 is too deep, it is not easy to form, and the process requirements are high, resulting in higher manufacturing costs. If the depth d of the glue groove 313 is too shallow, for example, d<0.14mm, the amount of glue that can be accommodated by the glue groove 313 is small, thereby reducing the bonding effect between the first magnet 41 and the side wall 312 of the groove 311, causing the first magnet 41 to fall off easily.

[0070] In this embodiment, as shown in Figure 10, when the depth d of the glue groove 313 satisfies 0.14mm≤d≤0.16mm, the depth of the glue groove 313 is moderate, and the volume of glue that can be accommodated is sufficient, so that the first magnet 41 can be firmly connected to the side wall 312 of the groove 311 and is not easy to fall off, thereby improving the fixing effect of the first magnet 41 in the groove 311 and improving the structural stability of the foldable electronic device. In addition, the glue groove 313 of this depth is easy to process, has low process requirements, and is not prone to waste of glue materials, so that the glue dispensing can easily fill the glue groove 313, thereby reducing manufacturing costs.

[0071] In the embodiment of the present application, the depth d of the glue groove 313 is 0.15 mm. When dispensing glue, the glue groove 313 is easily filled with glue, thereby improving the bonding effect of the first magnet 41 in the groove 311.

[0072] Furthermore, as shown in FIG10 , along the third direction Z of the foldable electronic device, the height of the adhesive groove 313 is h1, and satisfies 0.6 mm ≤ h1 ≤ 0.8 mm. For example, h1 can be 0.6 mm, 0.7 mm, 0.8 mm, etc., and can be designed according to actual needs and is not limited here.

[0073] As shown in Figure 10, if h1 is too large, for example, h1>0.8mm, the volume of the glue groove 313 is too large, the amount of glue that needs to be filled in the glue groove 313 is too much, and glue overflow is likely to occur, which easily causes waste of materials. If h1 is too small, for example, h1<0.6mm, the volume of the glue groove 313 is too small, and the amount of glue it can accommodate is small, thereby reducing the bonding effect between the first magnet 41 and the side wall 312 of the groove 311, thereby reducing the fixing effect of the first magnet 41 in the groove 311, causing the first magnet 41 to fall off easily.

[0074] In this embodiment, as shown in Figure 10, when the height h1 of the glue groove satisfies 0.6mm≤h1≤0.8mm, the volume of the glue groove 313 can be ensured to be moderate, and the volume of the glue contained is sufficient, thereby ensuring the bonding effect between the first magnet 41 and the side wall 312 of the groove 311, making it difficult for the first magnet 41 to fall off from the groove 311, thereby improving the structural stability of the foldable electronic device. The glue groove 313 of this depth is also easy to process, has low process requirements, and is not prone to glue overflow, saving materials and reducing manufacturing costs.

[0075] Furthermore, as shown in FIG. 10 , a gap 315 is defined between the bottom wall 314 of the groove 311 and the first magnet 41 , and the gap 315 is also used to accommodate glue.

[0076] In this embodiment, as shown in FIG10 , by dispensing glue in the gap 315 , the first magnet 41 located in the groove 311 can be bonded to the bottom wall 314 of the groove 311 , thereby further improving the fixing effect of the first magnet 41 in the groove 311 and further improving the structural stability of the foldable electronic device.

[0077] Furthermore, as shown in FIG10 , along the third direction Z of the foldable electronic device, the distance of the gap 315 is L, and satisfies 0.1 mm ≤ L ≤ 0.15 mm. For example, L can be 0.1 mm, 0.12 mm, 0.15 mm, etc., and can be designed according to actual needs and is not limited here.

[0078] As shown in Figure 10, if the gap distance L is too small, for example, L < 0.1mm, the glue between the first magnet 41 and the bottom wall 314 of the groove 311 is too thin, which may easily lead to a low bonding strength between the first magnet 41 and the bottom wall 314, thereby making the first magnet 41 easily detached from the groove 311. If the gap distance L is too large, for example, L > 0.15mm, the glue is too thick, which will increase the stacking space between the first magnet 41 and the upper cover 31 in the third direction Z, which is not conducive to the lightweight design of the foldable electronic device, and will cause waste of glue materials and increase manufacturing costs.

[0079] In this embodiment, as shown in Figure 10, when the distance L of the gap 315 satisfies 0.1mm≤L≤0.15mm, there is a glue layer of moderate thickness between the first magnet 41 and the bottom wall 314 of the groove 311, thereby enhancing the bonding strength between the first magnet 41 and the bottom wall 314, improving the bonding effect of the first magnet 41 in the groove 311, so that the first magnet 41 is not easy to detach from the groove 311, thereby improving the structural stability of the foldable electronic device, and can meet the design requirements of the foldable electronic device to be lighter and thinner, and at a lower cost.

[0080] In the embodiment of the present application, the distance L of the gap 315 is 0.1 mm, which can save glue materials to the greatest extent, ensure the bonding effect between the first magnet 41 and the bottom wall 314 of the groove 311, and make the foldable electronic device lighter and thinner.

[0081] It should be noted that, as shown in FIG10 , the gap 315 and the glue-receiving groove 313 can be simultaneously provided in the same groove 311. The gap 315 and the glue-receiving groove 313 cooperate to accommodate glue, thereby allowing the first magnet 41 to simultaneously adhere to the sidewalls 312 and the bottom wall 314 of the groove 311, further improving the fixing effect of the first magnet 41 within the groove 311. Of course, only one of the gap 315 and the glue-receiving groove 313 can also be provided in the groove 311, and this is not limited here.

[0082] Furthermore, as shown in FIG. 10 , a boss 316 is provided in the groove 311 , and along the third direction Z of the foldable electronic device, the boss 316 protrudes from the bottom wall 314 .

[0083] In this embodiment, as shown in Figure 10, the bottom wall 314 of the groove 311 is provided with a boss 316, which can limit the displacement of the first magnet 41 in the third direction Z, thereby ensuring that there is a sufficient gap 315 between the lowest point of the first magnet 41 and the bottom wall 314 in the third direction Z, thereby ensuring that the thickness of the glue layer is sufficient to ensure the bonding strength between the first magnet 41 and the bottom wall 314, and enhance the fixing effect of the first magnet 41 in the groove 311.

[0084] Further, please refer to Figures 11 and 12. Figure 11 is a top view of the upper cover in Figure 5, and Figure 12 is a schematic structural diagram of the groove in Figure 11 in another embodiment. As shown in Figures 11 and 12, the boss 316 is protruding from the corner of the bottom wall 314, thereby ensuring that there is a sufficient gap distance L between the first magnet 41 and the middle part of the bottom wall 314 in the third direction Z, ensuring the thickness of the glue layer, and increasing the bonding area between the first magnet 41 and the bottom wall 314, further improving the bonding strength between the first magnet 41 and the bottom wall 314, and further enhancing the fixing effect of the first magnet 41 in the groove 311.

[0085] In the specific embodiment shown in Figure 11, the shape of the groove 311 is irregular and roughly L-shaped, and the boss 316 can be set at each corner of the groove 311 in the figure. Of course, it can also be set at some corners to further reduce the difficulty of preparation and save preparation costs. There is no restriction here.

[0086] In the specific embodiment shown in Figure 12, the groove 311 is rectangular in shape, the bosses 316 can be arranged at the four corners, and some of the bosses can be connected to enhance the limiting effect of the first magnet 41 in the third direction Z, ensuring that the gap distance between the first magnet 41 and the middle part of the bottom wall 314 is sufficient.

[0087] Of course, the bosses 316 may also be uniformly protruded from the edge of the bottom wall 314 to further improve the limiting effect of the first magnet 41 in the third direction Z, which is not limited here.

[0088] Furthermore, as shown in FIG10 , along the third direction Z of the foldable electronic device, the height of the boss 316 is h2, where 0.05 mm ≤ h2 ≤ 0.08 mm. For example, h2 can be 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, etc., and can be set according to actual needs and is not limited here.

[0089] As shown in 10, if the height of h2 is low, for example, h2 is less than 0.05mm, the limiting effect of the first magnet 41 in the third direction Z is poor, and the gap distance L between the first magnet 41 and the bottom wall 314 cannot be guaranteed to be sufficient. If the height of h2 is high, for example, h2 is greater than 0.08mm, the gap distance L between the first magnet 41 and the bottom wall 314 will be too large, resulting in a waste of glue coating, and the thickness of the foldable electronic device in the third direction Z will be increased, which is not conducive to the design requirement of a lighter and thinner foldable electronic device.

[0090] In this embodiment, as shown in Figure 10, when the height h2 of the boss 316 satisfies 0.05mm≤h2≤0.08mm, it can ensure that the gap distance L between the first magnet 41 and the bottom wall 314 is sufficient, thereby ensuring that the thickness of the glue layer is sufficient, to ensure the bonding strength between the first magnet 41 and the bottom wall 314, improve the fixing effect of the first magnet 41 in the groove 311, and will not cause waste of the applied glue, which is also conducive to the design requirement of a lighter and thinner foldable electronic device.

[0091] In the embodiment of the present application, the height h2 of the boss 316 is 0.05 mm, which can ensure that there is a sufficient gap distance L between the first magnet 41 and the bottom wall 314 and can make the foldable electronic device thinner and lighter.

[0092] The above description is merely a specific implementation of the embodiments of the present application, but the scope of protection of the embodiments of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the embodiments of the present application shall be included in the scope of protection of the embodiments of the present application. Therefore, the scope of protection of the embodiments of the present application shall be based on the scope of protection of the claims.

Claims

1. A foldable electronic device, characterized in that: include: First middle frame; a second middle frame, the second middle frame being rotatably connected to the first middle frame; An electronic device, wherein the electronic device is disposed in the first middle frame or the second middle frame; A magnet assembly, wherein the first middle frame and the second middle frame are attracted together by the magnet assembly, and the magnet assembly comprises a first magnet, and the first magnet is arranged on the electronic device.

2. The foldable electronic device according to claim 1, characterized in that: The electronic device is provided with a groove, and the first magnet is arranged in the groove.

3. The foldable electronic device according to claim 2, characterized in that: The groove comprises a side wall, and a glue containing groove is recessed on the side wall.

4. The foldable electronic device according to claim 3, characterized in that: The depth of the glue containing groove is d, 0.14mm≤d≤0.16mm.

5. The foldable electronic device according to claim 3, characterized in that: Along the third direction of the foldable electronic device, the height of the glue containing groove is h1, and 0.6mm≤h1≤0.8mm.

6. The foldable electronic device according to claim 2, characterized in that: The groove further includes a bottom wall, and a gap is formed between the bottom wall and the first magnet.

7. The foldable electronic device according to claim 6, characterized in that: Along the third direction of the foldable electronic device, the distance of the gap is L, and 0.1mm≤L≤0.15mm.

8. The foldable electronic device according to claim 6, characterized in that: A boss is arranged in the groove; Along the third direction of the foldable electronic device, the boss is protruding from the bottom wall.

9. The foldable electronic device according to claim 8, characterized in that: The boss is convexly arranged at the corner of the bottom wall.

10. The foldable electronic device according to claim 8, characterized in that: Along the third direction of the foldable electronic device, the height of the boss is h2, 0.05mm≤h2≤0.08mm.

11. The foldable electronic device according to any one of claims 2 to 10, characterized in that: The electronic device is an audio component, and the audio component includes an upper cover, an inner core and a lower cover, wherein the inner core and the upper cover are arranged to form a front cavity, and the inner core, the lower cover and the upper cover are arranged to form a rear cavity; At least a portion of the upper cover is recessed into the rear cavity to form the groove.

12. The foldable electronic device according to claim 11, characterized in that: The lower cover is provided with an avoidance groove, and at least the portion of the upper cover that is recessed into the rear cavity is located in the avoidance groove.

13. The foldable electronic device according to any one of claims 1 to 10, characterized in that: The magnet assembly also includes a second magnet; The second magnet is disposed in one of the first middle frame or the second middle frame, and the first magnet is disposed in the other of the first middle frame or the second middle frame; The first middle frame and the second middle frame are attracted to each other through the first magnet and the second magnet.

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