Terminal device connection structure and terminal device

Abstract

The application relates to a terminal device connecting structure and a terminal device, and belongs to the technical field of electronics. The terminal device connecting structure comprises a middle frame, a back cover and a jacking assembly. The middle frame comprises a side frame, and a mounting hole is formed in the side frame; the back cover is detachably connected with the middle frame, and the back cover comprises a cover body and a buckle plate, the buckle plate is arranged on the cover body, the buckle plate comprises a first stress surface and a second stress surface, the first stress surface is arranged opposite to the side frame, and the second stress surface intersects with the first stress surface; the jacking assembly comprises a pressing piece and a connecting piece, the connecting piece is rotationally arranged in the mounting hole, the pressing piece is arranged between the side frame and the buckle plate, and the pressing piece is fixedly connected with the connecting piece; the pressing piece comprises a first pressing surface and a second pressing surface, the first pressing surface is arranged opposite to the first stress surface, and the second pressing surface is arranged opposite to the second stress surface. The buckle plate is pressed in two directions by the pressing piece, so that the technical problems that the existing terminal device back cover is complex and difficult to remove in the removal process are solved.

Description

Technical Field

[0001] This invention relates to the field of electronic technology, and in particular to a terminal device connection structure and a terminal device. Background Technology

[0002] Traditionally, the back cover of a terminal device is glued to the mid-frame with foam adhesive, making it very difficult to remove. It requires heating to remove the foam adhesive first, then inserting a pry bar into the gap between the back cover and the mid-frame, and forcefully prying the back cover upwards to separate it from the mid-frame. The process of prying open the back cover with a pry bar is complicated, difficult to remove, and very easy to damage the appearance of the back cover. Summary of the Invention

[0003] One objective of this invention is to solve the technical problem that the removal process of the back cover of existing terminal devices is complex and difficult.

[0004] To solve the above-mentioned technical problems, the present invention provides a terminal device connection structure, comprising: a middle frame, including a side frame, wherein the side frame has mounting holes; a rear cover, detachably connected to the middle frame, the rear cover including a cover body and a fastening plate, the fastening plate being disposed on the cover body, the fastening plate including a first force-bearing surface and a second force-bearing surface, the first force-bearing surface being opposite to the side frame, and the second force-bearing surface intersecting the first force-bearing surface; and a lifting assembly including a pressing member and a connecting member, the connecting member being rotatably disposed within the mounting holes, and the pressing member being disposed between the side frame and the fastening plate. The pressing member is fixedly connected to the connecting member; the pressing member includes a first pressing surface and a second pressing surface, the first pressing surface is disposed opposite to the first force-bearing surface, and the second pressing surface is disposed opposite to the second force-bearing surface; wherein, when the connecting member is rotated, the first pressing surface presses against the first force-bearing surface, so that the fastening plate can be offset along the axial direction of the mounting hole, so that the first force-bearing surface is away from the side frame; the second pressing surface presses against the second force-bearing surface, so that the fastening plate can be moved along a plane perpendicular to the cover body, thereby pushing the rear cover out of the middle frame.

[0005] Optionally, the top pressure member is spirally opening.

[0006] Optionally, the first pressing surface spirals upward along the axis of the top pressing member, so that the height of the first pressing surface gradually increases; the second pressing surface gradually opens along the periphery of the top pressing member, so that the distance between the second pressing surface and the rotation axis of the top pressing member gradually increases.

[0007] Optionally, the first force-bearing surface and the second force-bearing surface are perpendicular to each other.

[0008] Optionally, the first force-bearing surface includes a low force-bearing surface, a high force-bearing surface, and an inclined force-bearing surface. The distance between the low force-bearing surface and the side frame is greater than the distance between the high force-bearing surface and the side frame. The low force-bearing surface and the high force-bearing surface are smoothly connected through the inclined force-bearing surface. The low force-bearing surface is also provided with a counter-hole. The force point between the first pressing surface and the first force-bearing surface moves along the inclined force-bearing surface to the high force-bearing surface, successively pressing the inclined force-bearing surface and the high force-bearing surface, so that the fastening plate and the side frame move away from each other.

[0009] Optionally, the lifting assembly further includes a retaining ring, and the pressing member is provided with a connecting hole, through which the connecting member is connected to the retaining ring.

[0010] Optionally, the connector includes a drive shaft and a nut, the nut being fixedly connected to one end of the drive shaft, and the nut having a groove for engaging with a screwdriver.

[0011] Optionally, the cover has a notch positioned relative to the latching plate for inserting a pry bar during disassembly.

[0012] Optionally, it also includes a waterproof ring disposed between the back cover and the middle frame to seal the gap between the back cover and the middle frame.

[0013] This embodiment also provides a terminal device, including: a motherboard module; the terminal device connection structure described above, wherein the motherboard module is disposed within the middle frame.

[0014] As can be seen from the above technical solution, the beneficial effects of the present invention are as follows:

[0015] The rear cover of the terminal device connection structure of this invention includes a latching plate and a matching pressing member. By rotating the pressing member, the latching plate is pressed from two directions, pushing it out of the middle frame. When the rear cover needs to be removed, simply rotate the connector, causing the pressing member to rotate so that the first pressing surface can press against the first force-bearing surface of the latching plate. The latching plate experiences lateral pressure, causing it to move along the axis of the mounting hole, away from the middle frame. Then, continue rotating the connector, causing the second pressing surface of the pressing member to press against the second pressing surface of the latching plate. The latching plate receives vertical pressure, causing it to move upwards along the vertical line of the cover's plane, separating it from the middle frame. This allows a pry bar to be inserted between the rear cover and the middle frame, completing the removal of the rear cover. This structure simplifies the maintenance and disassembly process of the terminal device; simply rotating the connector opens the rear cover. This allows operators to quickly replace internal components of the terminal device without damaging the outer casing. During reinstallation, no spare after-sales materials are needed, resulting in good economic benefits and practical value. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the terminal device;

[0017] Figure 2 This is an exploded view of the terminal equipment connection structure;

[0018] Figure 3 This is a schematic diagram of the terminal device with the back cover removed;

[0019] Figure 4 This is a schematic diagram showing the connection between the rear cover and the lifting assembly;

[0020] Figure 5 yes Figure 4 Enlarged view of the rear cover and lifting assembly;

[0021] Figure 6 yes Figure 5 A schematic diagram showing the separation of the rear cover from the lifting assembly;

[0022] Figure 7 This is a front view of the lifting component;

[0023] Figure 8 This is a top view of the lifting assembly;

[0024] Figure 9 This is an exploded view of the lifting assembly;

[0025] Figure 10 yes Figure 3 Sectional view of section AA;

[0026] Figure 11 yes Figure 10 Enlarged view of part of the image.

[0027] The reference numerals in the attached drawings are explained as follows: 100, terminal equipment; 10, middle frame; 11, side frame; 12, mounting hole; 20, rear cover; 21, cover body; 211, notch; 22, fastening plate; 221, first force-bearing surface; 2211, low-position force-bearing surface; 2212, high-position force-bearing surface; 2213, inclined force-bearing surface; 2214, countersunk hole; 222, second force-bearing surface; 23, fastener; 30, lifting assembly; 31, pressing component; 311, first pressing surface; 312, second pressing surface; 313, connecting hole; 32, connecting component; 321, drive shaft; 322, nut; 323, groove; 33, retaining ring; 40, waterproof ring; 50, main board module. Detailed Implementation

[0028] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit the present invention.

[0029] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back) are merely for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Traditionally, the back cover 20 of a terminal device is glued to the middle frame 10 with foam adhesive, making its removal extremely difficult. This requires first heating to remove the foam adhesive, then inserting a pry tool into the gap between the back cover 20 and the middle frame 10, and forcefully prying the back cover 20 upwards to detach it from the middle frame 10. This prying process is complex, difficult, and easily damages the appearance of the back cover 20. Therefore, this embodiment provides a terminal device connection structure that makes the back cover 20 of the terminal device 100 easier to remove. Any operator can easily and quickly remove the back cover 20 of the terminal device 100 for maintenance.

[0032] Please see Figure 1 A terminal device 100 is provided, including a motherboard module 50 and a terminal device connection structure, wherein the motherboard module 50 is disposed within a mid-frame 10. In this embodiment, the terminal device 100 is a mobile phone; its motherboard module 50 includes a corresponding battery module, camera module, and control module, etc. It is conceivable that the terminal device 100 could also be a tablet, a smartwatch, or other electronic devices that can be configured with this structure, with corresponding modifications to the motherboard module 50 installed inside.

[0033] Please see Figures 2 to 11 A terminal device connection structure includes a middle frame 10, a rear cover 20, and a lifting assembly 30. The rear cover 20 is fastened to the middle frame 10, and the lifting assembly 30 is disposed inside the middle frame 10 for pressing the rear cover 20.

[0034] The middle frame 10 includes side frames 11, and multiple side frames 11 together form the middle frame 10. Mounting holes 12 are provided on the side frames 11 for mounting the connectors 32 of the lifting assembly 30. The mounting holes 12 can be located on any side frame 11. In this embodiment, the inner side of the middle frame 10 also has a fastening position for cooperating with the fasteners 23 spaced apart on the upper part of the rear cover 20 to achieve fastening of the rear cover 20.

[0035] The back cover 20 is detachably connected to the middle frame 10. The back cover 20 includes multiple fasteners 23, which are spaced around the cover body 21 and used to engage with the fastening positions on the middle frame 10, thereby realizing the detachable connection between the back cover 20 and the middle frame 10.

[0036] The rear cover 20 includes a cover body 21 and a fastening plate 22. The fastening plate 22 is disposed on the cover body 21, and the position of the fastening plate 22 matches the position of the mounting hole 12 on the middle frame 10.

[0037] Please see Figure 6 The fastening plate 22 is L-shaped. The fastening plate 22 includes a first force-bearing surface 221 and a second force-bearing surface 222. The first force-bearing surface 221 is disposed opposite to the side frame 11, and the second force-bearing surface 222 intersects with the first force-bearing surface 221. The first force-bearing surface 221 can withstand a force along the axis of the mounting hole 12, allowing the fastening plate 22 to shift along the axis of the mounting hole 12, so that the first force-bearing surface 221 moves away from the side frame 11. The second force-bearing surface 222 can withstand a force perpendicular to the plane of the cover 21, to push the rear cover 20 out of the middle frame 10.

[0038] In this embodiment, the first force-bearing surface 221 and the second force-bearing surface 222 are perpendicular to each other. When they cooperate with the pressing member 31 of the lifting assembly 30, the rear cover 20 can be pushed out more effectively.

[0039] Please see Figure 6 The first force-bearing surface 221 includes a low force-bearing surface 2211, a high force-bearing surface 2212, and an inclined force-bearing surface 2213. The distance between the low force-bearing surface 2211 and the side frame 11 is greater than the distance between the high force-bearing surface 2212 and the side frame 11, meaning the low force-bearing surface 2211 is more concave inward. The low force-bearing surface 2211 and the high force-bearing surface 2212 are smoothly connected through the inclined force-bearing surface 2213. When the pressing member 31 contacts the first force-bearing surface 221, the pressing member 31 rotates, and the force point between the pressing member 31 and the first force-bearing surface 221 moves along the inclined force-bearing surface 2213 towards the high force-bearing surface 2212, successively pressing the inclined force-bearing surface 2213 and the high force-bearing surface 2212, causing the fastening plate 22 and the side frame 11 to move away from each other, thus achieving the separation of the fastening plate 22 from the middle frame 10. When the pressing component 31 presses against the second force-bearing surface 222, the fastening plate 22 moves upward, causing the fastening plate 22 to push out of the middle frame 10.

[0040] In this embodiment, a countersunk hole 2214 is also provided on the low-position force-bearing surface 2211. The countersunk hole 2214 is used to accommodate the drive shaft 321 that passes through the top pressure member 31, so that the drive shaft 321 and the fastening plate 22 do not generate extrusion force.

[0041] In this embodiment, the cover 21 is provided with a notch 211, which is positioned relative to the fastening plate 22 and is used for inserting a pry bar during disassembly. When the pressing member 31 pushes the fastening plate 22 out above the surface of the middle frame 10, the pry bar can be inserted into the notch 211 to facilitate the subsequent disassembly of the rear cover 20.

[0042] Please see Figures 7 to 9 The lifting assembly 30 includes a pressing member 31 and a connecting member 32. The connecting member 32 is rotatably disposed in the mounting hole 12, and the pressing member 31 is disposed between the side frame 11 and the fastening plate 22. The pressing member 31 and the connecting member 32 are fixedly connected.

[0043] The pressing member 31 includes a first pressing surface 311 and a second pressing surface 312. The first pressing surface 311 is the end face of the pressing member 31, and the second pressing surface 312 is the side face of the pressing member 31. The first pressing surface 311 and the second pressing surface 312 intersect. The first pressing surface 311 is disposed opposite to the first force-bearing surface 221, and the second pressing surface 312 is disposed opposite to the second force-bearing surface 222.

[0044] The top-pressing component 31 is spirally opening. For example... Figure 8 As shown, the first pressing surface 311 spirals upward along the axis of the pressing member 31, causing the height of the first pressing surface 311 to gradually increase. Figure 9 As shown, the second pressing surface 312 gradually expands along the periphery of the pressing member 31 to form an involute, thereby gradually increasing the distance between the second pressing surface 312 and the rotation axis of the pressing member 31.

[0045] Because the first pressing surface 311 is a spirally rising inclined plane, and the first force-bearing surface 221 is a plane with different heights, when the connecting member 32 is rotated, the first pressing surface 311 presses against the first force-bearing surface 221, and the height of their contact point changes, allowing the first force-bearing surface 221 to shift along the axis away from the mounting hole 12, so that the fastening plate 22 is moved away from the side frame 11. Because the distance from the second pressing surface 312 to the rotation axis of the top pressing member 31 gradually increases, when the connecting member 32 is rotated, the torque of the second pressing surface 312 pressing against the second force-bearing surface 222 gradually increases, allowing the fastening plate 22 to move along the plane perpendicular to the cover 21, pushing the fastening plate 22 out of the middle frame 10.

[0046] Please see Figure 9In some embodiments, the lifting assembly 30 further includes a retaining spring 33. The pressing member 31 is provided with a connecting hole 313, and the connecting member 32 is provided with a corresponding retaining groove. The connecting member 32 passes through the connecting hole 313 and connects with the retaining spring 33. The retaining spring 33 is engaged in the retaining groove to prevent the connecting member 32 from disengaging from the pressing member 31. In this embodiment, the connecting hole 313 is a square hole, and the end of the connecting member 32 is also correspondingly square to prevent relative rotation between the pressing member 31 and the connecting member 32 and to prevent transmission loss.

[0047] In some embodiments, the connector 32 includes a drive shaft 321 and a nut 322. The nut 322 is fixedly connected to one end of the drive shaft 321, and the nut 322 is provided with a groove 323 for engaging with a screwdriver, which makes it easier for the operator to rotate the connector 32.

[0048] Please see Figure 10 and Figure 11 The terminal device connection structure also includes a waterproof ring 40, which is disposed between the rear cover 20 and the middle frame 10 to seal the gap between them. The waterproof ring 40 allows the entire terminal device 100 to achieve an IP67 waterproof rating even without the use of foam adhesive sealing.

[0049] The process of assembling and disassembling the terminal equipment connection structure:

[0050] Please see Figure 5 and Figure 6 Rotate the connector 32 clockwise, causing the first pressing surface 311 of the pressing member 31 to press against the first force-bearing surface 221 of the fastening plate 22, thus moving the fastening plate 22 away from the side frame 11 and disengaging it from the side frame 11. Continue rotating the connector 32 clockwise, and the second pressing surface 312 of the pressing member 31 begins to press against the second force-bearing surface of the fastening plate 22, pushing the fastening plate 22 upwards out of the surface of the middle frame 10. Insert the pry bar into the notch 211 of the cover 21 and pry the rear cover 20, completely disengaging it from the middle frame 10. When it is necessary to reconnect the rear cover 20 to the middle frame 10, simply rotate the connector 32 back to its original position to fasten the rear cover 20 back onto the middle frame 10.

[0051] The terminal device connection structure of this invention uses a rotating pressing member 31 to press the latching plate 22 from two directions, thereby pushing the latching plate 22 out of the middle frame 10. When it is necessary to remove the back cover 20, simply rotate the connecting member 32 to rotate the pressing member 31, so that the first pressing surface 311 can press the first force-bearing surface 221 on the latching plate 22. The latching plate 22 is subjected to lateral pressure, causing it to move along the axis of the mounting hole 12 away from the middle frame 10. Then, continue to rotate the connecting member 32, so that the second pressing surface 312 of the pressing member 31 begins to press against the second pressing surface 312 of the latching plate 22. The latching plate 22 receives vertical pressure, causing it to move upward along the vertical line of the plane of the cover 21, partially separating the latching plate 22 from the middle frame 10, so that the pry bar can be inserted between the back cover 20 and the middle frame 10, completing the removal of the back cover 20. This structure simplifies the maintenance and disassembly process of the terminal device 100. The back cover 20 can be opened simply by rotating the connector 32, which allows operators to quickly replace the internal components of the terminal device 100 without damaging the back cover 20. When reinstalling, there is no need to prepare spare after-sales materials, which has good economic benefits and practical value.

[0052] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A terminal device connection structure, characterized in that, include: The middle frame includes side frames, and the side frames have mounting holes. The rear cover is detachably connected to the middle frame. The rear cover includes a cover body and a fastening plate. The fastening plate is disposed on the cover body and includes a first force-bearing surface and a second force-bearing surface. The first force-bearing surface is disposed opposite to the side frame, and the second force-bearing surface intersects with the first force-bearing surface. The first force-bearing surface and the second force-bearing surface are perpendicular to each other. The lifting assembly includes a pressing member and a connecting member. The connecting member is rotatably disposed within the mounting hole. The pressing member is disposed between the side frame and the fastening plate, and the pressing member is fixedly connected to the connecting member. The pressing member includes a first pressing surface and a second pressing surface. The first pressing surface is disposed opposite to the first force-bearing surface, and the second pressing surface is disposed opposite to the second force-bearing surface. The pressing member is spirally opening. When the connector is rotated, the first pressing surface presses against the first force-bearing surface, causing the buckle plate to shift along the axial direction of the mounting hole, so that the first force-bearing surface moves away from the side frame; the second pressing surface presses against the second force-bearing surface, causing the buckle plate to move along a plane perpendicular to the cover, thereby pushing the rear cover out of the middle frame.

2. The terminal device connection structure according to claim 1, characterized in that, The first pressing surface spirals upward along the axis of the top pressing member, so that the height of the first pressing surface gradually increases; the second pressing surface gradually opens along the circumference of the top pressing member, so that the distance between the second pressing surface and the rotation axis of the top pressing member gradually increases.

3. The terminal device connection structure according to claim 1, characterized in that, The first force-bearing surface includes a low-position force-bearing surface, a high-position force-bearing surface, and an inclined force-bearing surface. The distance between the low-position force-bearing surface and the side frame is greater than the distance between the high-position force-bearing surface and the side frame. The low-position force-bearing surface and the high-position force-bearing surface are smoothly connected through the inclined force-bearing surface. The low-position force-bearing surface is also provided with a countersunk hole. The point of force between the first pressing surface and the first force-bearing surface moves along the inclined force-bearing surface to the higher force-bearing surface, and successively presses the inclined force-bearing surface and the higher force-bearing surface, so that the fastening plate and the side frame move away from each other.

4. The terminal device connection structure according to claim 1, characterized in that, The lifting assembly also includes a retaining ring, and the pressing member is provided with a connecting hole, through which the connecting member is connected to the retaining ring.

5. The terminal device connection structure according to claim 1, characterized in that, The connector includes a drive shaft and a nut. The nut is fixedly connected to one end of the drive shaft and has a groove for engaging with a screwdriver.

6. The terminal device connection structure according to claim 1, characterized in that, The cover has a notch, which is positioned relative to the latching plate, for inserting a pry bar during disassembly.

7. The terminal device connection structure according to claim 1, characterized in that, It also includes a waterproof ring, which is disposed between the back cover and the middle frame to seal the gap between the back cover and the middle frame.

8. A terminal device, characterized in that, include: Motherboard module; The terminal device connection structure according to any one of claims 1-7, wherein the motherboard module is disposed within the middle frame.

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