Electronic device

Abstract

This application discloses electronic devices. These devices may include mobile phones, tablets, handheld computers, walkie-talkies, POS machines, dashcams, wearable devices, virtual reality devices, or pre-installed automotive devices, etc., all with screens. By providing an airflow channel between the screen and a middle plate, communicating with through holes on the middle plate, airflow between the screen's designated position and the middle plate, and between the middle plate and the cover, is achieved. This solves the problem of screen deformation and failure caused by sudden changes in external air pressure.

Description

[0001] This application is a divisional application. The original application has the application number 202110681173.4 and the original application date is June 18, 2021. The entire contents of the original application are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electronic product technology, and more particularly to an electronic device. Background Technology

[0003] With the development of mobile phones and other electronic devices, users have increasingly higher requirements for the hydrophobic performance of these devices.

[0004] To ensure the hydrophobic properties of the electronic device surface and prevent water or other liquids from seeping into the device after being spilled or splashed, a P2i nano-hydrophobic coating process is required. During this process, the entire device needs to be placed in a cabinet, which is then subjected to negative pressure to ensure the coating effect.

[0005] During the P2i nano-hydrophobic coating process, the sudden change in external air pressure during negative pressure application can easily cause severe deformation and malfunction of the electronic device's screen. Besides this process, in other usage scenarios (such as at high altitudes, plateaus, or underwater), changes in external air pressure can also easily cause screen deformation and malfunction. Summary of the Invention

[0006] This application provides an electronic device that can solve the problem of screen deformation caused by sudden changes in external air pressure, resulting in the failure of electronic devices.

[0007] On one hand, this application provides an electronic device including a screen, a middle plate, and a cover. The middle plate is located between the screen and the cover, that is, the screen and the cover are respectively disposed on both sides of the middle plate. A through hole is formed in the middle plate, and an air passage is provided between the screen and the middle plate. The portion of the screen between its designated position and the middle plate is connected to the through hole through the air passage. The screen can be a flexible screen, a foldable screen, or a rigid screen. The designated position of the screen is not limited and can be a position that is easily deformable.

[0008] In the P2i nano-hydrophobic coating process or other applications of electronic devices, when the external air pressure changes abruptly, the air between the screen's set position and the middle plate can be connected through the air passage and the through holes of the middle plate to the gap between the middle plate and the cover, which can solve the problem of screen failure caused by deformation due to air pressure difference.

[0009] Based on this aspect, the embodiments of this application also provide a first implementation method: The screen includes a designated area, and the designated position is located within the designated area. In other words, the area of ​​the designated area is larger than the designated position. The designated area encompasses the designated position, and the airflow channel is located within the corresponding area of ​​the designated area. This ensures that the airflow path between the designated position and the middle plate, and the through-hole, is relatively short, facilitating rapid airflow.

[0010] Based on the first implementation method, this application also provides a second implementation method: The screen is bonded to the middle plate in the designated area by adhesive, and at least some airflow channels are formed on the adhesive. In this way, the setting position is not affected by the connection structure between the designated area and the middle plate, which includes it, and it can be ensured that the screen can communicate with the through hole within the first area through the airflow channels, so that the selection of the setting position is unrestricted.

[0011] Based on one aspect, or the first or second implementation of one aspect, the embodiments of this application also provide a third implementation of one aspect: At least some airflow channels are formed on the middle plate. This allows for more flexible arrangement of the airflow channels.

[0012] Based on any one of the first to third embodiments of one aspect, this application also provides a fourth embodiment of one aspect: The middle plate has a breathable membrane at its through-hole location, which covers the through-hole. This prevents dust and other contaminants from seeping into the sides of the middle plate, ensuring the relative airtightness of the space on both sides of the middle plate.

[0013] Based on the fourth implementation method, this application also provides a fifth implementation method: The breathable membrane covering the perforations has waterproof properties. This improves the waterproofness of electronic devices.

[0014] Based on any one of the first to fifth embodiments of one aspect, this application also provides a sixth embodiment of one aspect: The screen's designated position is the cutout location. This cutout location can be the one corresponding to the front-facing camera. When external air pressure changes, the screen's cutout location is prone to deformation. Setting the location to this specific cutout position can prevent severe deformation caused by pressure differences.

[0015] Based on any one of the first to sixth embodiments of one aspect, this application also provides a seventh embodiment of one aspect: The electronic device is waterproof and has an airflow channel. One end of the airflow channel is connected to the outside, and the other end is connected to the ventilation channel. That is, the outside is connected to the airflow channel, the ventilation channel and the through hole. The outside can be connected to the gap between the screen and the middle plate, and the gap between the middle plate and the cover. The airflow channel is equipped with a waterproof and breathable membrane.

[0016] The waterproof and breathable membrane installed in the airflow channel ensures the waterproof performance of the electronic device. The airflow channel connects the gaps on both sides of the middle plate, enabling communication between the inside of the electronic device and the outside air. This avoids problems such as noise from the speaker caused by air pressure difference between the inside and outside of the electronic device. At the same time, when the outside air pressure changes suddenly, the communication between the outside and the inside of the electronic device also avoids the problem of screen deformation and failure caused by air pressure difference.

[0017] Based on the seventh implementation method, this application also provides an eighth implementation method: The airflow channel has an inner port that communicates with the air passageway. Specifically, the inner port of the airflow channel is located between the screen and the mid-frame, and the waterproof and breathable membrane is positioned at the inner port. This placement of the waterproof and breathable membrane between the screen and the mid-frame utilizes the existing gap between them, avoiding any increase in the overall thickness of the device.

[0018] Based on the eighth implementation method, this application also provides a ninth implementation method: A waterproof adhesive backing is provided near the outer edge of the waterproof and breathable membrane. This adhesive's flexibility provides soft support for the screen, preventing issues like screen cracks, bright spots, or membrane marks caused by the waterproof and breathable membrane.

[0019] Based on any of the seventh to ninth embodiments of one aspect, this application also provides a tenth embodiment of one aspect: The airflow channel includes a gap formed between the screen and the middle plate. In this way, by utilizing the gap between the screen and the middle plate as at least part of the structure of the airflow channel connecting the side where the screen is located and the side where the cover is located, it is possible to avoid adding structures or additional processes.

[0020] Based on any of the seventh to tenth embodiments of one aspect, this application also provides an eleventh embodiment of one aspect: The electronic device also includes a mid-frame, which comprises the aforementioned mid-plate and a frame surrounding the outer edge of the mid-plate, with airflow channels formed within the mid-frame. This utilizes the existing mid-frame structure to create an airflow channel connecting the outside world and the interior of the electronic device, simplifying the design, avoiding unnecessary structural additions, and contributing to a reduction in overall weight. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application, wherein the screen of the electronic device is made transparent; Figure 2 for Figure 1 A magnified view of a portion of the M1 area; Figure 3 for Figure 1 A schematic diagram of the explosion of the electronic equipment at location M1; Figure 4 This is a partial structural diagram of an electronic device from a frontal viewing angle, provided as an embodiment of this application, wherein the screen of the electronic device is made transparent; Figure 5 for Figure 4 A schematic cross-sectional view along the AA direction; Figure 6 This is a schematic diagram of another electronic device provided in an embodiment of this application, wherein the screen of the electronic device is made transparent; Figure 7 for Figure 6 A magnified view of a section M2; Figure 8 for Figure 6 A schematic diagram of the explosion of the electronic equipment at location M2; Figure 9 This is a partial structural diagram of an electronic device from a frontal viewing angle, provided as an embodiment of this application, wherein the screen of the electronic device is made transparent; Figure 10 for Figure 9 Cross-sectional schematic diagram along the BB direction; Figure 11 A perspective view of an electronic device provided in an embodiment of this application; Figure 12 This application provides a schematic diagram of the structure of an electronic device without a screen, as shown in the embodiments of the present application. Figure 13 This is a cross-sectional schematic diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0022] The electronic devices provided in this application can be mobile phones or tablets, or terminal products with screens such as handheld computers, walkie-talkies, POS machines, dashcams, wearable devices, virtual reality devices, or in-vehicle pre-installed devices.

[0023] Please refer to Figures 1 to 5 To clearly show the structure, Figure 1 and Figure 4 In China, electronic device screens are made transparent, meaning the screen is transparent. Figure 1 and Figure 4 The middle section is in an invisible state.

[0024] In this embodiment, the electronic device includes a screen 10, a mid-frame 20, and a cover 30. The mid-frame 20 is located between the screen 10 and the cover 30, that is, the screen 10 and the cover 30 are respectively disposed on both sides of the mid-frame 20. (See reference...) Figure 5 Understanding. For example... Figure 1 As shown, the middle frame 20 includes a middle plate 21 and a frame 22 surrounding the outer edge of the middle plate 21. The middle plate 21 and the frame can be separate structures or integral structures.

[0025] In this embodiment, the electronic device includes a front-facing camera 70, and a screen 10 has a selected area 11. This selected area 11 is a region of a certain size covering the front-facing camera 70. The size and shape of the selected area 11 are not limited. The screen 10 has an opening 111 in the selected area 11 corresponding to the position of the front-facing camera 70, so that the front-facing camera 70 can take photos or videos. It can be understood that the opening 111 is only located in the display area of ​​the screen 10; there are no openings on the cover plate of the screen 10. Figure 3 To clearly indicate the location of the opening 111, Figure 3 The middle screen 10 is a perspective view, and the opening 111 is indicated by a dashed line.

[0026] The main body of the front-facing camera 70 is located between the middle plate 21 and the cover 30. The middle plate 21 has a camera hole 212, the position of which corresponds to the position of the opening 111, and the camera hole 212 and the opening 111 are connected. That is, the position of the camera hole 212 corresponds to that of the front-facing camera 70, so that the lens part of the front-facing camera 70 can be located in the camera hole 212 and the opening 111.

[0027] refer to Figure 3 and Figure 5 It is understood that a seal 71 is provided between the front-facing camera 70 and the middle plate 21 to ensure the airtightness of the area where the front-facing camera 70 is located and to prevent dust and other contaminants from falling in. The seal 71 can be any component that can achieve a seal, such as an annular sealing ring, foam, or sealant. The seal 71 can wrap around the front-facing camera 70 to achieve a seal.

[0028] The middle plate 21 has a through hole 211, which is located next to the camera hole 212 and is a certain distance away from the camera hole 212. This distance is not limited and can be determined as needed during actual setup.

[0029] An air passage 51 is provided between the screen 10 and the middle plate 21. The part between the opening 111 of the screen 10 and the middle plate 21 is connected to the through hole 211 through the air passage 51. That is, the air at the opening 111 can be connected to the air between the middle plate 21 and the cover 30 through the air passage 51 and the through hole 211.

[0030] In the P2i nano-hydrophobic coating process provided in this embodiment, when a sudden change in external air pressure occurs, the air at the opening 111 of the screen 10 is connected through the airflow channel 51 and the gap between the through-hole 211 and the middle plate 21 and the cover 30. This solves the problem of screen 10 failure caused by deformation due to internal and external air pressure differences, and in particular, it can alleviate the deformation of the screen 10 at the opening 111. In addition to the above-mentioned P2i nano-hydrophobic coating process, the electronic device can also avoid the problem of screen 10 deformation failure due to air pressure differences in usage scenarios with sudden changes in external air pressure.

[0031] The screen 10 of the electronic device provided in this embodiment can be a flexible screen, a foldable screen, or a rigid screen; the type of screen 10 is not limited here.

[0032] The screen 10 is bonded and sealed to the middle plate 21 in the selected area 11 by the backing adhesive 40 to prevent dust and other impurities from entering the selected area 11 and to ensure the photo or video recording effect of the front camera 70.

[0033] In this embodiment, the adhesive backing 40 has a sheet-like structure, which basically covers the selected area 11. The through-hole 211 of the middle plate 21 is located within the selected area 11, that is, the through-hole 211 is within the area covered by the adhesive backing 40. (See reference...) Figures 2 to 5 The airflow channels 51 located between the screen 10 and the middle plate 21 are all formed on the adhesive backing 40, combined with Figure 2 and Figure 3 It is understood that the airflow channel 51 is actually a through-hole structure provided on the adhesive 40. Specifically, the airflow channel 51 includes a first flow channel section 511, a second flow channel section 512, and a third flow channel section 513. The first flow channel section 511 is a first circular through-hole provided on the adhesive 40 at the position corresponding to the opening 111. The first circular through-hole 511 is larger than the opening 111 and is located within the range of the first circular through-hole. The third flow channel section 513 is a second circular through-hole provided on the adhesive 40 at the position corresponding to the first through-hole 211. The second circular through-hole is larger than the first through-hole 211 and is located within the range of the second circular through-hole. The second flow channel section 512 is a straight through-hole connecting the first circular through-hole and the second circular through-hole.

[0034] The aforementioned airflow channel 51 is located in the selected area 11, and the opening 111 is located within the range of the first circular through hole, i.e., the first flow channel section 511. This ensures that the air around the opening 111 can be connected with the air between the middle plate 21 and the cover 30. The first through hole 211 is located within the range of the second circular through hole, i.e., the third flow channel section 513. Furthermore, the airflow path between the opening 111 and the first through hole 211 is relatively short, which is conducive to the rapid conduction of air. Because the screen 10 is prone to stress concentration at the opening 111, the edge of the opening 111 is prone to failure when the external air pressure changes suddenly. After the air is quickly conducted, the screen 10 can be effectively prevented from deforming due to the sudden change in external air pressure, which could lead to failure.

[0035] In other embodiments, the first flow channel section 511 and the third flow channel section 513 can also be through holes of other shapes, not limited to the circle shown in the figure. For example, they can be regular shapes such as rectangles, squares or ovals. Of course, they can also be irregular shapes. The second flow channel section 512 connecting the first flow channel section 511 and the third flow channel section 513 can also be other shapes, not limited to straight lines. For example, it can be a broken line, an arc, or other curved shapes.

[0036] In this embodiment, the air passage 51 between the opening 111 and the through hole 211 is one. In other embodiments, multiple passages can be provided. For example, two or more second passages 512 connecting the first passage segment 511 and the third passage segment 513 can be provided. The shapes of these second passage segments 512 can be different or the same.

[0037] In this embodiment, a breathable membrane 61 is also provided at the through hole 211 of the middle plate 21. The breathable membrane 61 covers the through hole 211. It can be understood that the breathable membrane 61 is made of a membrane material that allows air to pass through. In this way, the air at the opening 111 flows to the through hole 211 through the air passage 51, and can flow into the space between the middle plate 21 and the cover 30 through the breathable membrane 61. The breathable membrane 61 can isolate dust, dirt, foreign objects, etc. on both sides of the middle plate 21, and can also prevent the passage from being blocked. The breathable membrane 61 can be fixed to the middle plate 21 by means of adhesive or other methods. For example, the breathable membrane 61 can be fixed to the middle plate 21 by adhesive component 80.

[0038] The breathable membrane 61 can specifically be a waterproof breathable membrane to improve the waterproof performance of electronic devices. Specifically, the breathable membrane 61 can be a single layer or a structure of two or more layers, and its material can be a membrane-like polymer material that combines a semi-permeable membrane with a substrate, including PP (polypropylene) non-woven fabric, PE (polyethylene) polymer breathable membrane, etc.

[0039] In this embodiment, an airflow channel 51 is formed between the opening 111 at the position of the front-facing camera 70 on the screen 10 and the through hole 211. In other embodiments, if the screen 10 has a hole structure at other positions, or if it is known in advance, through experiments or simulations, that the screen 10 has other positions that are easily deformed by air pressure differences or that are sensitive to screen deformation, airflow channels can be set at the corresponding positions. These positions are called set positions. Correspondingly, a set area including the set position can be defined on the screen 10. The shape and size of the set area can be set as needed. An airflow channel is set within the set area to connect the portion between the set position of the screen 10 and the middle plate 21 with the through hole formed on the middle plate 21. It can be understood that the aforementioned set position of the screen 10 can be one or more. When there are two or more set positions, only one through hole can be set on the middle plate 21, and the airflow channels corresponding to these set positions can all be connected to the through hole. Of course, two or more through holes can also be set on the middle plate 21.

[0040] In other embodiments, the airflow channel 51 may not be located within the designated area at all, or may not be located entirely within the designated area. In this case, at least a portion of the airflow channel 51 is not within the corresponding range of the adhesive 40. If there are no other structures between the screen 10 and the middle plate 21 within this range, the airflow channel 51 may include the gap formed between the screen 10 and the middle plate 21. That is, utilizing the existing gap between the screen 10 and the middle plate 21 as at least a part of the airflow channel 51 can simplify the structure. In other embodiments, the through hole 211 of the middle plate 21 may also not be located within the area where the adhesive 40 is located. In this case, a portion of the airflow channel 51 may be formed on the adhesive 40, and the remaining portion may be the gap between the screen 10 and the middle plate 21. Of course, these two portions need to be connected.

[0041] In the above embodiment, in the selected area 11, the adhesive 40 between the screen 10 and the middle plate 21 is a sheet-like structure covering the selected area 11. In other embodiments, the adhesive 40 can also be a closed ring structure corresponding to the outer edge of the selected area 11. In this case, the air passage 51 can make full use of the existing gap between the screen 10 and the middle plate 21. Of course, if there is a part of the adhesive 40 in the airflow path of the air passage 51, then through holes of different shapes can be formed in the interference part to form part of the air passage 51.

[0042] Please refer to Figures 6 to 10 To clearly show the structure, Figure 6 and Figure 9 In China, electronic device screens are made transparent, meaning the screen is transparent. Figure 6 and Figure 9 The middle section is in an invisible state.

[0043] The basic structural composition of the electronic device in this embodiment is the same as described above. Figures 1 to 5 The embodiments shown are similar, the difference being that the air passage 51 is formed differently. This difference will be explained in detail below, while the rest can be referred to the above. Figures 1 to 5 The description of the illustrated embodiments will not be repeated.

[0044] In this embodiment, the opening 111 on the screen 10 corresponding to the front camera 70 is still selected as the set position, and correspondingly, the selected area 11 including the opening 111 is the set area.

[0045] In this embodiment, the airflow channel 51 located between the screen 10 and the middle plate 21 also includes a first flow channel section 511, a second flow channel section 512, and a third flow channel section 513, which can be referred to Figure 7 and Figure 8 It is understood that the structures of the first flow channel section 511 and the third flow channel section 513 are the same as those described above. Figures 1 to 5 The embodiments shown are consistent, with the adhesive 40 having a first circular through hole at the position corresponding to the opening 111 and a second circular through hole at the position corresponding to the through hole 211. The second flow channel section 512 connects the first flow channel section 511 and the third flow channel section 513, which is different from the aforementioned embodiments. Figures 1 to 5 In the embodiment shown, the second flow channel section 512 is formed on the middle plate 21, specifically as a groove structure formed on the middle plate 21, such as... Figure 8 As shown, the groove structure passes through the through hole 211 and the opening 212 of the middle plate 21. The second flow channel section 512 is formed on the middle plate 21, which facilitates processing and allows for control of the flow area of ​​the second flow channel section 512 as needed.

[0046] Since the second flow channel section 512 of the groove structure connects the through hole 211 and the opening 212, in actual installation, the first flow channel section 511 and the third flow channel section 513 may not be formed on the adhesive 40. The flow area at the point where the second flow channel section 512 connects with the through hole 211 and the opening 212 can be appropriately increased so that the air flows more smoothly in the entire flow path.

[0047] The shape of the second flow channel section 512 formed on the middle plate 21 is not limited, and can be in different forms such as straight, curved, serpentine, or stepped.

[0048] In combination with the above Figures 1 to 5 The illustrated embodiments and Figures 6 to 10 The embodiment shown can be modified in other ways. For example, the airflow channel 51 of the electronic device can also utilize the existing gap between the screen 10 and the middle plate 21. In actual installation, the screen 10 is fixed to the middle plate 21 by other adhesives such as backing adhesive, so there is a gap between the screen 10 and the middle plate 21.

[0049] Please refer to Figures 11 to 13 , Figure 11 This is a perspective view of an electronic device, with its internal structure indicated by dashed lines. Figure 12 To clearly illustrate the connection points of the airflow channels, dashed lines are used to indicate their internal structure.

[0050] The electronic device provided in this embodiment is a waterproof device, such as a waterproof mobile phone, etc. Figure 11 and Figure 12 As shown, the electronic device includes a screen 10, a mid-frame 20, and a cover 30. The mid-frame 20 includes a mid-plate 21 and a frame 22 surrounding the outer edge of the mid-plate 21. The frame 22 is located between the mid-plate 21 and the cover 30. The mid-plate 21 and the frame 22 can be separate structures or an integral structure. The screen 10 and the cover 30 are located on opposite sides of the mid-frame 20.

[0051] As mentioned above Figures 1 to 5 The illustrated embodiments and Figures 6 to 10 Compared to the illustrated embodiment, the electronic device in this embodiment has a waterproof function. The screen 10 and the middle plate 21 are bonded together with waterproof adhesive or backing adhesive (not shown in the figure) to achieve waterproofing. The electronic device has an airflow channel 52 connecting to the outside. The airflow channel 52 can be of any shape or utilize an existing hole structure. This airflow channel 52 connects to the area between the screen 10 and the middle plate 21. In this embodiment, the screen 10's designated position corresponds to the position of the airflow channel 52 located inside the electronic device. The middle plate 21 has a second through hole 211'. The area between the screen 10's designated position and the middle plate 21 is connected to the second through hole 211' via an airflow channel 51. That is, the outside can connect to the area between the screen's designated position and the middle plate 21 through the airflow channel 52, and the gap between the middle plate 21 and the cover 30 is connected through the airflow channel 51 and the second through hole 211'. In this embodiment, the airflow channel 51 is formed in the gap between the screen 10 and the middle plate 21, and its shape is irregular, which can be combined with... Figure 11 and Figure 13 understand, Figure 11 The dashed lines and solid arrows in the diagram illustrate the approximate flow path of external air into the electronic device. The area indicated by the dashed lines and solid arrows inside the electronic device can be understood as part of the airflow channel 51. In other words, the outside world is connected to the inside of the phone. At the same time, a waterproof and breathable membrane 62 is provided at the airflow channel 52 to ensure the waterproof performance of the electronic device. In the illustrated example, the waterproof and breathable membrane 62 is rectangular in shape. It can be understood that in actual installation, the shape of the waterproof and breathable membrane 62 is not limited.

[0052] The airflow channel 52 of this electronic device connects to the side where the screen 10 is located. The airflow direction is from between the screen 10 and the middle plate 21 to between the middle plate 21 and the cover 30. This eliminates the problem of poor airflow caused by the small gap between the screen 10 and the middle plate 21, and enables rapid communication between the outside atmosphere and the air inside the electronic device where the screen 10 is located. In the P2i nano-hydrophobic coating process or other usage scenarios where the external air pressure changes suddenly, it can ensure that the screen 10 will not fail due to the air pressure difference. Because the inside of the electrical equipment can communicate with the outside, when the electronic device has a speaker or other structure, it can also avoid the problem of noise from the speaker.

[0053] In this embodiment, the structure of the waterproof and breathable membrane 62 is the same as described above. Figures 1 to 5 The structure of the waterproof and breathable membrane 61 described in the illustrated embodiment is similar and will not be repeated.

[0054] In this embodiment, the airflow channel 52 is formed in the middle frame 20, which is convenient to set up, avoids adding unnecessary structures, and does not affect the thickness of the electronic device. Figures 11 to 13 As shown, a portion of the airflow channel 52 is formed on the frame 22, and another portion is formed on the middle plate 21. In the illustrated example, the airflow channel 52 is a straight through-hole. In other embodiments, the airflow channel 52 can also be in the form of a broken line or a curve, etc., and the airflow channel 52 can also be formed entirely on the middle plate 21. Specifically, the airflow channel 52 can be provided in the existing USB port, audio output port, or other connector port on the middle frame 20 to simplify the structure.

[0055] The airflow channel 52 has an inner port that communicates with the airflow channel 51, meaning the inner port of the airflow channel 52 faces the screen 10. In this embodiment, the waterproof and breathable membrane 62 is placed at the inner port of the airflow channel 52, that is, the waterproof and breathable membrane 62 is located between the screen 10 and the middle plate 21. This not only facilitates assembly but also utilizes the actual gap between the screen 10 and the middle frame 20, avoiding increasing the thickness of the electronic device. In addition, it is convenient to set the size of the inner port and the size of the waterproof and breathable membrane 62 as needed, avoiding increasing the volume of other components due to the size design requirements of the waterproof and breathable membrane 62, which helps to reduce the weight of the whole machine.

[0056] In this embodiment, a waterproof adhesive 63 can also be provided near the outer edge of the waterproof and breathable membrane 62. The waterproof adhesive 63 can be located at a high-risk reliability position identified based on design experience or simulation. In the illustrated example, the waterproof adhesive 63 is a long strip structure located between the waterproof and breathable membrane 62 and the through hole 211', relatively close to the waterproof and breathable membrane 62.

[0057] The waterproof adhesive 63 provides dual protection against external liquid ingress, enhancing the waterproof performance of electronic devices. In practice, the thickness of the waterproof adhesive 63 is less than or equal to the gap between the screen 10 and the middle plate 21, and the thickness of the waterproof breathable membrane 62 is also less than or equal to the gap between the screen 10 and the middle plate 21. This allows the thickness of the waterproof adhesive 63 to be slightly greater than that of the waterproof breathable membrane 62, providing support. Furthermore, the flexibility of the waterproof adhesive 63 provides soft support for the screen 10, preventing issues such as screen cracks or film marks caused by the waterproof breathable membrane 62 pressing against the top of the screen 10.

[0058] In this embodiment, the airflow channels 51 are all formed in the gap between the screen 10 and the middle plate 21. That is, after outside air enters the electronic device through the airflow channels 52, it is intercepted by the waterproof and breathable membrane 62, allowing only air to pass through while preventing dust and water from entering the electronic device. The incoming air flows along the gap between the screen 10 and the middle plate 21 to the through hole 211' in the middle plate 21, and then flows into the gap between the middle plate 21 and the cover 30, thus achieving air communication between the outside and the inside of the electronic device. (Reference) Figure 11 It is understandable that, due to the waterproof adhesive 63, the air passing through the waterproof and breathable membrane 62 bypasses the waterproof adhesive 63 and flows along the gap between the screen 10 and the middle plate 21 to the through hole 211'. Figure 11 The dashed line with a solid arrow in the center indicates the approximate flow path of outside air into the electronic device.

[0059] In this embodiment, the set position of screen 10 is near the edge of screen 10, which can be the upper edge, lower edge, or side edge of screen 10. In this embodiment, the position of screen 10 corresponding to the inner port of airflow channel 52 can be understood as the set position. Of course, in other embodiments, the set position of screen 10 can be any other position as long as airflow channel 52 allows.

[0060] To avoid obstructing airflow, in actual installation, the waterproof adhesive 63 does not form a closed annular structure at the outer edge of the waterproof and breathable membrane 62. The waterproof adhesive 63 can be a block structure or other shapes, and one or more can be provided. When multiple waterproof adhesives 63 are provided, they are spaced apart near the outer edge of the waterproof and breathable membrane 62, and the space between adjacent waterproof adhesives 63 forms part of the airflow channel 51. Of course, the waterproof adhesive 63 can also be a closed annular structure. In this case, the waterproof adhesive 63 can be understood as the adhesive provided in the designated area on the screen 10 that includes the aforementioned designated position, and part of the airflow channel 51 can be formed in the waterproof adhesive 63.

[0061] Referring to the above Figures 1 to 5 The illustrated embodiments and Figures 6 to 10 The embodiment shown, the Figures 11 to 13 In a variation of the illustrated embodiment, the airflow channel 51 may be partially formed on the middle plate 21. This embodiment may also have other variations, such as those described above. Figures 1 to 5 The illustrated embodiments or Figures 6 to 10 In the embodiment shown, the airflow channel 52 is connected to the opening 111 of the screen 10, or, in the aforementioned Figures 1 to 5 The illustrated embodiments or Figures 6 to 10 Based on the embodiment shown, another setting position is provided that is different from the opening 111, that is... Figures 11 to 13 The structure of the embodiment shown is the same as that described above. Figures 1 to 5 The illustrated embodiment or Figures 6 to 10 The embodiments shown are simply combined together. The through hole 211 and the through hole 211' of the middle plate 21 can be two different through holes in two different locations, or they can be the same through hole.

[0062] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An electronic device comprising a screen, a middle plate, and a cover, wherein the screen and the cover are respectively located on opposite sides of the middle plate; characterized in that, The middle plate has a through hole, and an air passage is provided between the screen and the middle plate. The screen includes a set area and a set position. The set position is located in the set area, and the air passage is located within the range corresponding to the set area. The portion between the set position and the middle plate is connected to the through hole through the air passage.

2. The electronic device according to claim 1, characterized in that, The screen is bonded to the middle plate in the designated area by adhesive backing, and at least a portion of the airflow channels are formed in the adhesive backing.

3. The electronic device according to claim 1 or 2, characterized in that, At least a portion of the airflow channel is formed in the middle plate.

4. The electronic device according to any one of claims 1-3, characterized in that, A breathable membrane is provided at the through hole of the middle plate, and the breathable membrane covers the through hole.

5. The electronic device according to claim 4, characterized in that, The breathable membrane is a waterproof breathable membrane.

6. The electronic device according to any one of claims 1-5, characterized in that, The set position is the opening position of the screen.

7. The electronic device according to any one of claims 1-6, characterized in that, The electronic device is a waterproof device, and it has an airflow channel that connects to the outside world. The airflow channel is connected to the ventilation channel. The airflow channel is equipped with a waterproof and breathable membrane.

8. The electronic device according to claim 7, characterized in that, The airflow channel has an inner port that communicates with the air passage, and the waterproof and breathable membrane is disposed at the inner port.

9. The electronic device according to claim 8, characterized in that, A waterproof adhesive backing is provided near the outer edge of the waterproof and breathable membrane.

10. The electronic device according to any one of claims 7-9, characterized in that, The airflow channel includes a gap formed between the screen and the middle plate.

11. The electronic device according to any one of claims 7-10, characterized in that, It also includes a middle frame, which includes the middle plate and a frame surrounding the outer edge of the middle plate, and the airflow channel is formed in the middle frame.

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