Electronic device
By using injection-molded glue platforms to seal the connection between the electronic device and the middle frame, replacing the traditional caulking process, the problem of high parameter control requirements for waterproof structures is solved, achieving efficient waterproofing and stability, reducing the black border of the screen, and improving production efficiency.
Patent Information
- Application Number
- CN202422626458.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The waterproof structure of existing electronic devices requires high parameter control during the dispensing process, resulting in poor sealing effect and poor tolerance. Furthermore, traditional caulking processes affect the width of the black border on the screen and production efficiency.
The screen and the middle frame are sealed together by injection molding, replacing the traditional caulking process. The screen and the middle frame are sealed by the glue platform to form a waterproof structure. The glue platform is also equipped with clearance grooves and glue filling holes to improve sealing and stability.
It achieves a highly efficient IPX8 waterproof effect, improves the stability of waterproof sealing, reduces the width of the black border on the screen display, saves production process and time, and at the same time ensures sound quality and reliability.
Smart Images
Figure CN223613373U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of sealing of electronic devices, in particular to an electronic device. BACKGROUND
[0002] An electronic device, such as a mobile phone, includes a middle frame assembly having a middle frame, a screen, and a waterproof structure between the screen and the middle frame. The waterproof structure includes a glue line. The glue line seals a gap between the screen and the middle frame by a sealant.
[0003] In the waterproof structure described above, because the glue line is formed by a dispensing process, various parameters (such as the amount of glue, etc.) involved in the process need to be accurately controlled to achieve good sealing effect. Therefore, the waterproof structure described above has high requirements for the glue line dispensing process and the screen black border width (such as a wider black border width), and poor tolerance. CONTENT OF THE UTILITY MODEL
[0004] The purpose of the present application is to disclose an electronic device.
[0005] The present application discloses an electronic device. The electronic device includes a middle frame assembly, a screen, and a waterproof structure. The middle frame assembly includes a middle frame. The waterproof structure is between the middle frame and the screen, and isolates the inside of the electronic device from the outside world; the waterproof structure includes a glue table; the glue table is injection molded on the screen and extends around the circumference of the screen, and the glue table is sealingly connected with the middle frame.
[0006] In some embodiments, the glue table is bonded to the middle frame by a back glue.
[0007] In some embodiments, the glue table surrounds the screen once.
[0008] In some embodiments, the screen includes an FPC assembly; in a direction perpendicular to the screen, the height of the glue table relative to the screen is H; the maximum height of the FPC assembly relative to the screen is h, and H≥h, so as to shield the FPC assembly.
[0009] In some embodiments, the glue table is uniformly high relative to the screen.
[0010] In some embodiments, the glue table is formed on the screen by a low-pressure injection molding process.
[0011] In some embodiments, the middle frame assembly includes an earpiece narrow slit area; the glue table includes an avoidance groove as an earpiece sound collection and playback channel; the avoidance groove corresponds to the earpiece narrow slit area and is recessed towards the inside of the screen in a direction parallel to the screen.
[0012] In some embodiments, the glue platform includes a first glue platform side and a second glue platform side located at opposite ends of the first glue platform side, and the first glue platform side is provided with the avoiding groove. The waterproof structure includes a sealing part provided on the middle frame assembly, and the sealing part is located at the inner side of the first glue platform side; two ends of the sealing part are connected with one of the second glue platform sides respectively to form a closed ring with the glue platform.
[0013] In some embodiments, the earpiece narrow slit area is provided with glue injection holes at both sides along the length direction, and the sealing part and the glue platform are connected through glue injection in the glue injection holes.
[0014] In some embodiments, the extension direction of the sealing part is parallel to the length direction of the earpiece narrow slit area; and the glue injection hole is located between the second glue platform side and the end of the sealing part.
[0015] In some embodiments, the screen includes a supported part facing the middle frame, and the middle frame assembly includes a support part in contact with the supported part to support the screen.
[0016] In some embodiments, the sealing part is bonded with the supported part, and the opposite ends of the sealing part are respectively connected with support parts, and the support parts and the sealing part as a whole extend along the circumference of the middle frame.
[0017] For the electronic device, since the waterproof structure includes a glue platform injected on the screen and is sealed and connected with the middle frame through the glue platform, the waterproof effect of the waterproof structure is good, for example, IPX8 waterproof can be achieved. In addition, in the above arrangement, the traditional caulking glue process is cancelled, the waterproof sealing stability / tolerance is improved (for example, the filling speed, filling amount and wiping of the caulking glue process no longer affect the width of the screen display black border), the width of the screen display black border can be further reduced without being affected by the glue width, and the production process and time are saved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is a top view of an electronic device according to an embodiment of the present application;
[0019] Figure 2 is a sectional view along the A-A line of Figure 1 ;
[0020] Figure 3 is an enlarged view of the A part in Figure 2 ;
[0021] Figure 4 is a schematic view of a screen according to an embodiment of the present application, showing the structure of the back of the screen;
[0022] Figure 5 isFigure 4 Enlarged view of middle B part;
[0023] Figure 6 is a schematic view of a middle frame assembly according to an embodiment of the present application. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments (or, the "embodiments") of the present application will be clearly and completely described herein with reference to the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated.
[0025] If the embodiments of the present application involve directional indications or positional relationships (for example, up, down, left, right, front, back, inner, outer, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are used only to explain the relative positional relationships, movement conditions, etc. between components in a certain posture (as shown in the drawings); if the certain posture changes, the directional indications or positional relationships also change accordingly. In addition, the terms "first", "second", etc. in the embodiments of the present application are used only for the convenience of description, and cannot be understood as indicating or implying relative importance.
[0026] Referring to Figure 1 , Figure 2 , Figure 4 and Figure 6 , the present application discloses an electronic device. The electronic device can be a mobile phone, a tablet computer, etc. The electronic device comprises a middle frame assembly 1, a screen 2 and a waterproof structure. The middle frame assembly 1 comprises a middle frame 11. The waterproof structure is located between the middle frame 11 and the screen 2, and isolates the inside of the electronic device from the outside. The waterproof structure comprises a glue table 21. The glue table 21 is injection molded on the screen 2 and wraps around the screen 2. In some embodiments, the glue table 21 can not wrap around the screen 2, but can extend along the circumference of the screen 2, and the length of the extension depends on the area to be sealed. The glue table 21 is sealingly connected to the middle frame 11. One concept of the present application is to replace the way of filling glue in the gap between the screen 2 and the middle frame 11 by the caulking process in the related art with the injection molded glue table 21 and the sealing connection between the glue table 21 and the middle frame 11, so that, for the waterproof structure, in addition to the glue table 21, the other parts of the waterproof structure are not limited, as long as they can together form the waterproof structure to isolate the inside of the electronic device (such as a mobile phone) from the outside.
[0027] As set forth above, since the waterproof structure includes the glue table 21 which is injection molded on the screen 2, and the glue table 21 is sealingly connected with the middle frame 11, the waterproof effect of such waterproof structure is good, for example, IPX8 waterproof can be achieved. In addition, in the above setting, the traditional caulking glue process is cancelled, the waterproof sealing stability / tolerance is improved (for example, no longer affected by the glue filling speed, glue filling amount and glue wiping of the caulking glue process), no longer affected by the glue dispensing width, the screen display black border width can be further reduced, and the production process and time are saved.
[0028] In some embodiments, the glue table 21 is bonded with the middle frame 11 through back glue. Referring to Figure 4 and Figure 6 , the edge of the middle frame 11 is attached with back glue 12, and the back glue 12 is bonded with the glue table 21.
[0029] As set forth above, the glue table 21 is bonded with the middle frame 11 through the back glue 12, which has good sealing performance and good waterproof performance, and IPX8 waterproof can be achieved. In addition, bonding is also convenient for achieving
[0030] Referring to Figure 3 and Figure 4 , the screen 2 includes an FPC assembly 22; in the direction perpendicular to the screen, the height of the glue table 21 relative to the screen 2 is equal everywhere (i.e. equal height) and the height is H; the maximum height of the FPC assembly 22 relative to the screen is h, and H≥h, so as to shield the FPC assembly 22, Figure 3 schematic diagram of the state of the glue table 21 shielding the FPC assembly 22. The maximum height refers to the fact that the FPC assembly 22 includes different components, and the maximum height refers to the distance between the highest component and the screen 2. Of course, in other embodiments, the height of the glue table 21 relative to the screen 2 can also not be equal everywhere (not equal height), as long as the FPC assembly 22 can be shielded.
[0031] As set forth above, H≥h and the height of the glue table relative to the screen is equal everywhere, which can avoid the influence of the fact that the stacking thickness of the FPC assembly 22 is not the same and cannot be sealed by back glue, and ensure the sealing effect of the waterproof structure. Of course, in the case where the height of the glue table 21 relative to the screen 2 is not equal everywhere, as long as the FPC assembly 22 can be shielded, but in this case, the sealing effect may be affected or inconvenient, for example, the back glue 12 must be of unequal thickness due to the unequal height of the glue table 21, and the structure of the back glue 12 is also complex, and bonding is not convenient, etc.
[0032] In some embodiments, the glue table 21 is formed on the screen 2 by a low-pressure injection molding process. Of course, the injection molding process of the glue table 21 is not limited to the low-pressure injection molding process.
[0033] As set forth above, the adhesive platform 21 is formed on the screen 2 by a low-pressure injection molding process, and the screen 2 will not be damaged due to high pressure, and the like.
[0034] Referring to Figure 6 , the middle frame assembly 1 includes an earpiece narrow slit area 13. Referring to Figure 4 and Figure 5 , the adhesive platform 21 includes an avoidance groove 23 as an earpiece sound channel; the avoidance groove 23 corresponds to the earpiece narrow slit area 13, and is recessed towards the inside of the screen 2 in a direction parallel to the screen. Figure 4 As shown in the direction of the arrow R, it can be understood that the first adhesive platform side 211 of the adhesive platform 21 is narrowed at the position corresponding to the earpiece narrow slit area 13 to form the avoidance groove 23.
[0035] As set forth above, by providing the avoidance groove 23 on the adhesive platform 21, the sound channel is shorter, and the sound is smoother, thereby ensuring the sound quality (such as the sound quality is not damaged, and the like).
[0036] Referring to Figure 4 , the adhesive platform 21 includes a first adhesive platform side 211 and a second adhesive platform side 212 located at opposite ends of the first adhesive platform side 211. The first adhesive platform side 211 is provided with the avoidance groove 23. Referring to Figure 6 , the waterproof structure includes a sealing portion 14 provided on the middle frame assembly 1. Based on the subsequent sealing portion 14, the structure of the sealing portion 14 is not limited to the back adhesive, and the sealing can be achieved. The sealing portion 14 is located on the inside of the first adhesive platform side 211 (the outside of the electronic device). The two ends of the sealing portion 14 are respectively connected with one of the second adhesive platform sides 212 to form a closed ring 20 with the adhesive platform 21. Here, because the back adhesive 12 on the middle frame assembly 1 is bonded with the adhesive platform 21, the closed ring 20 is marked in Figure 6 .
[0037] As set forth above, by forming the closed ring 20, the water vapor is prevented from entering the inside of the electronic device.
[0038] Referring to Figure 6 , the earpiece narrow slit area 13 is provided with a glue pouring hole 15 on both sides in the length direction, and the sealing portion 14 and the adhesive platform 21 are connected by the glue pouring hole 15.
[0039] As set forth above, the path of the water vapor is from the earpiece narrow slit area 13 to the glue pouring hole 15, and the glue pouring hole 15 is located on both sides of the earpiece narrow slit area 13, so that the water vapor path is shorter, and the sealing reliability is higher.
[0040] Referring to Figure 6 and Figure 4The extending direction of the sealing portion 14 is parallel to the length direction of the earpiece narrow slit area 13. The glue pouring hole 15 is located between the second glue table side portion 212 and the end of the sealing portion 14. For example, the second glue table side portion 212 and the first glue table side portion 211 form a corner, and the glue pouring hole 15 is located on the side of the corner close to the second glue table side portion 212.
[0041] As described above, the glue pouring hole 15 is located on the side of the corner close to the second glue table side portion 212. Compared with the glue pouring hole 15 located on the side of the corner close to the first glue table side portion 211, the water vapor path is not excessively increased to ensure the waterproof effect, and design space is left for other components to facilitate stacking of other components.
[0042] Referring to Figure 4 and Figure 6 , the screen 2 includes a supported portion 24 facing the middle frame 11. The structure of the supported portion 24 is not limited, for example, the supported portion 24 is the copper foil surface of the screen 2. The middle frame assembly 1 includes a support portion 16 in contact with the supported portion 24 to support the screen. In the embodiments of the present application, the support portion 16 is correspondingly arranged in the ring surrounded by the glue table 21.
[0043] As described above, the supported portion 24 is supported by the support portion 16, thereby supporting the screen 2 and avoiding the screen 2 from falling off, and ensuring the reliability of the adhesion between the glue table 21 and the middle frame 11, and providing support in the case of falling to improve reliability.
[0044] Referring to Figure 4 and Figure 6 , the sealing portion 14 is adhesively connected to the supported portion 24 to realize the contact. The opposite ends of the sealing portion 14 are respectively connected with the support portion 16, and the support portion 16 and the sealing portion 14 as a whole extend along the circumference of the middle frame 11.
[0045] As described above, the sealing portion 14 and the support portion 16 jointly support the screen 2, and the support portion 16 and the sealing portion 14 as a whole extend along the circumference of the middle frame 11, so that the sealing portion 14 and the support portion 16 form an inner ring, and the glue table 21 forms an outer ring, forming a structure of inner ring support and outer ring sealing. The support area is large, the support effect is good, and finally, the support effect on the screen 2 is better ensured, the adhesion reliability between the glue table 21 and the middle frame 11 is better ensured, the sealing effect is better ensured, the waterproof effect is good, and the screen falling off and the reliability in the case of falling are also better prevented.
[0046] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of the present application is not limited to the precise structure described in the above embodiments and shown in the accompanying drawings; any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.
Claims
1. An electronic device, comprising: The electronic device comprises: a middle frame assembly comprising a middle frame; a screen; a waterproof structure between the middle frame and the screen, which separates the inside of the electronic device from the outside; the waterproof structure comprises a glue table; the glue table is injection molded on the screen and extends around the circumference of the screen, and the glue table is sealingly connected with the middle frame.
2. The electronic device of claim 1, wherein, The glue table is bonded to the middle frame by back glue, and / or the glue table extends around the screen.
3. The electronic device of claim 1, wherein, The screen comprises an FPC assembly; in a direction perpendicular to the screen, the height of the glue table relative to the screen is H; the maximum height of the FPC assembly relative to the screen is h, and H≥h, so as to shield the FPC assembly; And / or, the glue table is everywhere at the same height relative to the screen.
4. The electronic device of claim 1, wherein, The glue table is formed on the screen by a low-pressure injection molding process.
5. The electronic device of claim 1, wherein, The middle frame assembly comprises an ear narrow slit area; the glue table comprises an avoidance groove as an ear sound receiving and playing channel; the avoidance groove corresponds to the ear narrow slit area and is recessed towards the inside of the screen in a direction parallel to the screen.
6. The electronic device of claim 5, wherein, The glue table comprises a first glue table side and a second glue table side at the opposite end of the first glue table side, and the first glue table side is provided with the avoidance groove; The waterproof structure comprises a sealing part provided on the middle frame assembly, and the sealing part is located on the inner side of the first glue table side; the two ends of the sealing part are respectively connected with one of the second glue table sides to form a closed ring with the glue table.
7. The electronic device of claim 6, wherein, The ear narrow slit area is provided with glue pouring holes on both sides in the length direction, and the sealing part and the glue table are connected by glue pouring in the glue pouring holes.
8. The electronic device of claim 7, wherein, The extension direction of the sealing part is parallel to the length direction of the ear narrow slit area; the glue pouring hole is located between the second glue table side and the end of the sealing part.
9. The electronic device of claim 6, wherein, The screen comprises a supported part facing the middle frame, and the middle frame assembly comprises a support part in contact with the supported part to support the screen.
10. The electronic device of claim 9, wherein, The sealing part is bonded to the supported part, and the sealing part is connected with a support part at opposite ends, and the support part and the sealing part as a whole extend around the circumference of the middle frame.