Back shell connecting structure and mobile phone

Abstract

The application provides a back shell connecting structure and a mobile phone. The back shell connecting structure comprises a back plate, a first support and a second support. The first support and the second support are arranged on the two sides of the back shell. One side surface of the first support is provided with a mounting area for mounting a camera. The back plate is provided with a mounting cavity. The first support and the second support are arranged in the mounting cavity. A hot-melt clamping column is arranged on the side of the first support close to the back plate. The second support is provided with a limiting groove in communication with the mounting cavity. The hot-melt clamping column passes through the mounting cavity and is clamped in the limiting groove. The outer periphery of the second support is provided with a first limiting part, a second limiting part, a third limiting part and a fourth limiting part at intervals. The first limiting part, the second limiting part, the third limiting part and the fourth limiting part are all abutted on one side surface of the back plate. The camera is mounted in the first support through the mounting cavity and the mounting area. Thus, the back plate can be clamped between the first support and the second support through the stable primary-secondary buckle mode, so that the back plate is prevented from falling off the first support and the second support due to unstable connection.

Description

Technical Field

[0001] This utility model relates to the field of mobile electronic device technology, and in particular to a back cover connection structure and a mobile phone. Background Technology

[0002] As residents' living standards improve, the frequency of daily mobile phone use has increased significantly, and its photography performance has become an important factor for users when making purchases. To meet users' needs for mobile phone photography functions while ensuring device stability, manufacturers have begun to focus on improving the sealing between the mobile phone camera and the main body to solve the problem of camera malfunctions caused by moisture intrusion.

[0003] Currently, there are existing technical solutions for improving the sealing performance of cameras, such as the solution with patent publication number CN206517460U. This solution uses a sealing ring around the welded joint between the camera and the motherboard to prevent moisture from entering the device through the gap between the outer surface of the camera and the inner wall of the camera hole, thus achieving a certain degree of sealing.

[0004] However, the aforementioned existing technology has obvious drawbacks. It uses a welding method to connect the phone back cover and the camera module, which is prone to splitting due to external impacts, long-term wear and tear, etc., directly weakening the connection stability between the back cover and the camera module, and potentially affecting the overall structural stability of the phone and the reliability of the camera function. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a back cover connection structure and a mobile phone that stably clamps the back plate through the first bracket and the second bracket.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A back shell connection structure includes a back plate, a first bracket, and a second bracket. The first bracket and the second bracket are disposed on both sides of the back shell. One side of the first bracket is provided with a mounting area for mounting a camera. The back plate has a mounting cavity, in which the first bracket and the second bracket are disposed. A hot-melt locking post protrudes from the side of the first bracket near the back plate. The second bracket has a limiting groove that communicates with the mounting cavity. The hot-melt locking post passes through the mounting cavity and engages with the limiting groove. The outer periphery of the second bracket is provided with a first limiting part, a second limiting part, a third limiting part, and a fourth limiting part, which all abut against one side of the back plate.

[0008] In one embodiment, the hot-melt locking post includes an integrally formed post body and a circular boss; wherein, the end of the post body away from the circular boss is fixedly connected to the first bracket, and the end of the post body near the circular boss passes through the mounting cavity of the back plate and extends into the limiting groove of the second bracket; the circular boss is located in the limiting groove, and the groove opening width of the limiting groove is greater than the outer diameter of the circular boss.

[0009] In one embodiment, the circular boss is adapted to the limiting groove.

[0010] In one embodiment, the limiting groove is surrounded by a circular protrusion, and the circular boss abuts against the end face of the circular protrusion.

[0011] In one embodiment, the second bracket has a limiting opening, and the first bracket has a limiting post protruding from one side near the second bracket. The limiting post passes through the mounting cavity and is disposed at the limiting opening.

[0012] In one embodiment, the second bracket is provided with a mounting boss, the mounting boss having a through hole, the through hole communicating with the mounting area through the mounting cavity, and the mounting boss having a plurality of limiting steps protruding, the plurality of limiting steps being distributed circumferentially along the mounting boss.

[0013] In one embodiment, the backplate is a one-piece molded structure.

[0014] In one embodiment, there are multiple hot-melt locking posts and limiting grooves, with each hot-melt locking post corresponding to each limiting groove.

[0015] In one embodiment, the back plate includes, in sequence, a modified transparent layer, an ink layer, and an electroplated layer in the horizontal thickness direction. The modified transparent layer is located on the side away from the second support, and the electroplated layer is located on the side closer to the second support.

[0016] A mobile phone includes the back cover connection structure described in any of the above embodiments.

[0017] Compared with the prior art, the present invention has at least the following advantages:

[0018] The first bracket has an installation area for mounting the camera. A mounting cavity is formed in the back panel, within which the first and second brackets are housed. A thermoplastic locking post protrudes from the side of the first bracket near the back panel, while a limiting groove is formed in the second bracket. This limiting groove connects to the mounting cavity, allowing the thermoplastic locking post to pass through the mounting cavity and engage with the limiting groove. This ensures that the first and second brackets are securely connected to the back panel via a snap-fit ​​mechanism. Simultaneously, the mounting head is installed within the first bracket through the mounting cavity and installation area. This secure snap-fit ​​mechanism prevents the back panel from detaching from the first and second brackets due to unstable connections. Furthermore, a first limiting part, a second limiting part, a third limiting part, and a fourth limiting part are provided at intervals on the outer periphery of the second bracket. At the same time, the first limiting part, the second limiting part, the third limiting part, and the fourth limiting part all abut against one side of the back plate, so that the first limiting part, the second limiting part, the third limiting part, and the fourth limiting part abut against the back plate, preventing the back plate from shifting due to shaking. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional view of the back shell connection structure in one embodiment;

[0021] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0022] Figure 3 This is a schematic diagram of the back shell connection structure in one embodiment.

[0023] Figure 4 This is a schematic diagram of the backplate structure in one embodiment.

[0024] Figure 5 This is another structural schematic diagram of the back shell connection structure in one embodiment.

[0025] Figure 6 This is a schematic diagram of the hierarchical structure of the back panel in one embodiment.

[0026] Figure descriptions: 10. Back shell connection structure; 100. First bracket; 110. Mounting area; 120. Hot-melt locking post; 1210. Post body; 1220. Circular boss; 130. Limiting post; 200. Second bracket; 210. Limiting groove; 2110. Circular protrusion; 220. First limiting part; 230. Second limiting part; 240. Third limiting part; 250. Fourth limiting part; 260. Limiting opening; 270. Mounting boss; 2710. Through hole; 2720. Limiting step; 300. Back plate; 310. Mounting cavity. Detailed Implementation

[0027] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] This disclosure provides a back shell connection structure 10, including a back plate 300, a first bracket 100, and a second bracket 200. The first bracket 100 and the second bracket 200 are disposed on both sides of the back shell. One side of the first bracket 100 is provided with a mounting area 110 for mounting a camera. The back plate 300 has a mounting cavity 310, and the first bracket 100 and the second bracket 200 are disposed in the mounting cavity 310. A hot-melt locking post protrudes from the side of the first bracket 100 near the back plate 300. 120, the second bracket 200 has a limiting groove 210, the limiting groove 210 is connected to the mounting cavity 310; the hot-melt locking post 120 passes through the mounting cavity 310 and is engaged with the limiting groove 210; wherein, the outer periphery of the second bracket 200 is provided with a first limiting part 220, a second limiting part 230, a third limiting part 240 and a fourth limiting part 250 at intervals, the first limiting part 220, the second limiting part 230, the third limiting part 240 and the fourth limiting part 250 all abut against one side of the back plate 300.

[0031] See also Figures 1 to 5 In this embodiment, the back shell connection structure 10 has a first bracket 100 with a mounting area 110 for mounting a camera. A mounting cavity 310 is formed in the back plate 300, and the first bracket 100 and the second bracket 200 are disposed within the mounting cavity 310. A thermoplastic locking post 120 protrudes from the side of the first bracket 100 near the back plate 300, while a limiting groove 210 is formed in the second bracket 200. The limiting groove 210 communicates with the mounting cavity 310, allowing the thermoplastic locking post 120 to pass through the mounting cavity 310 and engage with the limiting groove 210. In order to ensure that the first bracket 100 and the second bracket 200 are securely connected by a snap-fit, and at the same time, the mounting head is installed in the first bracket 100 through the mounting cavity 310 and the mounting area 110, so that the back plate 300 can be securely clamped between the first bracket 100 and the second bracket 200 by a snap-fit, thus preventing the back plate 300 from falling off the first bracket 100 and the second bracket 200 due to an unstable connection. Furthermore, a first limiting part 220, a second limiting part 230, a third limiting part 240, and a fourth limiting part 250 are provided at intervals on the outer periphery of the second bracket 200. At the same time, the first limiting part, the second limiting part 230, the third limiting part 240, and the fourth limiting part 250 all abut against one side of the back plate 300, so that the first limiting part 220, the second limiting part 230, the third limiting part 240, and the fourth limiting part 250 abut against the back plate 300, preventing the back plate 300 from shifting due to shaking.

[0032] It should be noted that the hot melt insert 120 is injection molded using a hot melt injection molding process, which is an existing technology and will not be described in detail here.

[0033] Please see Figures 1 to 5 In one embodiment, the hot-melt locking post 120 includes an integrally formed post body 1210 and a circular boss 1220; wherein, the end of the post body 1210 away from the circular boss 1220 is fixedly connected to the first bracket 100, and the end of the post body 1210 near the circular boss 1220 passes through the mounting cavity 310 of the back plate 300 and extends into the limiting groove 210 of the second bracket 200; the circular boss 1220 is located in the limiting groove 210, and the width of the groove opening of the limiting groove 210 is greater than the outer diameter of the circular boss 1220. It is understood that one end of the column body 1210 is connected to the first bracket 100, while the other end of the column body 1210 is connected to the circular boss 1220. The circular boss 1220 extends through the mounting cavity 310 and into the limiting groove 210 of the second bracket 200, thereby enabling the circular boss 1220 to be engaged in the limiting groove 210. At the same time, the width of the groove opening of the limiting groove 210 is greater than the outer diameter of the circular boss 1220, thereby ensuring that the circular boss 1220 is securely engaged in the limiting groove 210 and preventing the circular boss 1220 from falling out of the limiting groove 210.

[0034] See Figure 2 Furthermore, the circular boss 1220 is adapted to the limiting groove 210. It is understood that the contour of the limiting groove 210 is configured to match the shape of the circular boss 1220. Specifically, the limiting groove 210 includes a circular cavity with a diameter larger than the width of the groove opening, the diameter of which matches the outer diameter of the circular boss 1220, allowing the circular boss 1220 to be accommodated within the circular cavity.

[0035] See Figure 2 In one embodiment, the limiting groove 210 is surrounded by a circular protrusion 2110, and the circular boss 1220 abuts against the end face of the circular protrusion 2110. It is understood that by providing a circular boss around the limiting groove 210, and with the circular boss 1220 abutting against the circular boss, the circular boss 1220 will not detach from the limiting groove 210 and fall to the outside.

[0036] See Figure 2 , Figure 3 and Figure 4In one embodiment, the second bracket 200 has a limiting opening 260, and the first bracket 100 has a limiting post 130 protruding from one side of the first bracket 100 near the second bracket 200. The limiting post 130 passes through the mounting cavity 310 and is disposed at the limiting opening 260. It can be understood that by having a limiting opening 260 in the second bracket 200, and simultaneously having a limiting post 130 protruding from one side of the first bracket 100 near the second bracket 200, and the limiting post 130 passing through the mounting cavity 310 and being disposed at the limiting opening 260, the limiting opening 260 restricts the range of motion of the limiting post 130, thereby preventing the second bracket 200 from deviating from the range of the mounting cavity 310.

[0037] See Figure 2 and Figure 3 In one embodiment, the second bracket 200 is provided with a mounting boss 270, which has a through hole 2710. The through hole 2710 communicates with the mounting area 110 through the mounting cavity 310. The mounting boss 270 has a plurality of limiting steps 2720, which are distributed circumferentially along the mounting boss 270. It is understood that by providing the mounting boss 270 in the second bracket 200, the mounting boss 270 is used to mount the camera component, and the mounting boss 270 has a through hole 2710 communicating with the mounting area 110, so that when the camera passes through the mounting area 110 and through the through hole 2710, it is positioned at the mounting boss 270. Furthermore, the mounting boss 270 is provided with multiple limiting steps 2720, which are distributed circumferentially along the mounting boss 270 to prevent the camera from deviating from the mounting boss 270 and limit the range of motion of the camera.

[0038] See Figure 1 and Figure 4 In one embodiment, the back plate 300 is a one-piece molded structure. It is understood that the one-piece molded back plate 300 avoids potential weak points caused by welding, bonding, or mechanical connections. This gives the back plate 300 continuous and uniform mechanical properties, enabling it to more effectively distribute and withstand external impacts, compression loads, etc., significantly improving the rigidity and durability of the overall structure and reducing the risk of cracking or damage under harsh usage conditions.

[0039] See Figure 2 and Figure 3In one embodiment, there are multiple hot-melt locking posts 120 and multiple limiting grooves 210, with each hot-melt locking post 120 corresponding to each limiting groove 210. It is understood that the multiple hot-melt locking posts 120 are spaced apart on the side of the first bracket 100 near the back plate 300, and correspondingly, multiple limiting grooves 210 are spaced apart on the second bracket 200 at positions corresponding to the hot-melt locking posts 120. These hot-melt locking posts 120 and limiting grooves 210 together constitute a distributed multi-point connection and fixing system. Multiple connection points can evenly distribute the load on the back plate 300 to multiple positions on the first bracket 100 and the second bracket 200. This avoids the risk of failure at a single point or a few connection points due to excessive force, significantly enhancing the overall strength and reliability of the back plate 300 connection, and is especially suitable for applications with large-size back plates 300 or extremely high structural strength requirements.

[0040] See Figure 4 and Figure 6 In one embodiment, the back panel 300 sequentially comprises a modified transparent layer, an ink layer, and an electroplating layer in its horizontal thickness direction. The modified transparent layer is located on the side away from the second support 200, and the electroplating layer is located on the side closer to the second support 200. It can be understood that the modified transparent layer is a polycarbonate layer, thereby giving the back panel 300 high strength and high toughness. Further, the ink layer is an acrylic UV ink layer, and the color of the back panel 300 is changed by adding different colored pigments and altering the temperature of the back panel 300. Further, the electroplating layer is used to increase the gloss of the back panel 300. Further, the specific process flow of the back panel 300 is: modified transparent PC → logo transfer → electroplating → undercoating → texture transfer → CNC machining.

[0041] This application also provides a mobile phone, including a camera and a back panel connection structure of any of the above embodiments. It is understood that a hot-melt locking post 120 protrudes from the side of the first bracket 100 near the back panel 300, while a limiting groove 210 is formed in the second bracket 200. The limiting groove 210 communicates with the mounting cavity 310, allowing the hot-melt locking post 120 to pass through the mounting cavity 310 and engage with the limiting groove 210. This ensures that the first bracket 100 and the second bracket 200 are securely connected to the back panel 300 via a snap-fit ​​connection. Simultaneously, the mounting cavity 310 and the mounting area 110 allow the mounting head to be installed within the first bracket 100. This allows the back panel 300 to be securely clamped between the first bracket 100 and the second bracket 200 via a stable snap-fit ​​connection, preventing the back panel 300 from detaching from the first bracket 100 and the second bracket 200 due to an unstable connection. Furthermore, a first limiting part 220, a second limiting part 230, a third limiting part 240, and a fourth limiting part 250 are provided at intervals on the outer periphery of the second bracket 200. At the same time, the first limiting part, the second limiting part 230, the third limiting part 240, and the fourth limiting part 250 all abut against one side of the back plate 300, so that the first limiting part 220, the second limiting part 230, the third limiting part 240, and the fourth limiting part 250 abut against the back plate 300, preventing the back plate 300 from shifting due to shaking.

[0042] Compared with the prior art, the present invention has at least the following advantages:

[0043] The first bracket 100 has a mounting area 110 for mounting a camera. A mounting cavity 310 is formed in the back plate 300, and the first bracket 100 and the second bracket 200 are disposed within the mounting cavity 310. A thermoplastic locking post 120 protrudes from the side of the first bracket 100 near the back plate 300, while a limiting groove 210 is formed in the second bracket 200. The limiting groove 210 communicates with the mounting cavity 310, allowing the thermoplastic locking post 120 to pass through the mounting cavity 310 and engage with the limiting groove 210. In order to ensure that the first bracket 100 and the second bracket 200 are securely connected by a snap-fit, and at the same time, the mounting head is installed in the first bracket 100 through the mounting cavity 310 and the mounting area 110, so that the back plate 300 can be securely clamped between the first bracket 100 and the second bracket 200 by a snap-fit, thus preventing the back plate 300 from falling off the first bracket 100 and the second bracket 200 due to an unstable connection. Furthermore, a first limiting part 220, a second limiting part 230, a third limiting part 240, and a fourth limiting part 250 are provided at intervals on the outer periphery of the second bracket 200. At the same time, the first limiting part, the second limiting part 230, the third limiting part 240, and the fourth limiting part 250 all abut against one side of the back plate 300, so that the first limiting part 220, the second limiting part 230, the third limiting part 240, and the fourth limiting part 250 abut against the back plate 300, preventing the back plate 300 from shifting due to shaking.

[0044] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A back cover connecting structure (10) comprising a back plate (300), a first support (100) and a second support (200), the first support (100) and the second support (200) are arranged on both sides of the back cover, one side surface of the first support (100) is provided with a mounting area (110), and the mounting area (110) is used for mounting a camera; characterized in that, The back plate (300) has a mounting cavity (310). The first bracket (100) and the second bracket (200) are disposed in the mounting cavity (310). A hot-melt locking post (120) protrudes from the side of the first bracket (100) near the back plate (300). The second bracket (200) has a limiting groove (210) that communicates with the mounting cavity (310). The hot-melt locking post (120) passes through... The second bracket (200) is engaged with the limiting groove (210) through the mounting cavity (310); wherein, the outer periphery of the second bracket (200) is provided with a first limiting part (220), a second limiting part (230), a third limiting part (240) and a fourth limiting part (250) at intervals, and the first limiting part (220), the second limiting part (230), the third limiting part (240) and the fourth limiting part (250) all abut against one side of the back plate (300).

2. The backshell connection structure (10) of claim 1, wherein, The hot-melt locking post (120) includes an integrally formed post body (1210) and a circular boss (1220); wherein, the end of the post body (1210) away from the circular boss (1220) is fixedly connected to the first bracket (100), and the end of the post body (1210) near the circular boss (1220) passes through the mounting cavity (310) of the back plate (300) and extends into the limiting groove (210) of the second bracket (200); the circular boss (1220) is located in the limiting groove (210), and the groove width of the limiting groove (210) is greater than the outer diameter of the circular boss (1220).

3. The backshell connection structure (10) of claim 2, wherein, The circular boss (1220) is adapted to the limiting groove (210).

4. The backshell connection structure (10) of claim 2, wherein, The limiting groove (210) is surrounded by a circular protrusion (2110), and the circular boss (1220) abuts against the end face of the circular protrusion (2110).

5. The backshell connection structure (10) of claim 1, wherein, The second bracket (200) has a limiting opening (260), and the first bracket (100) has a limiting post (130) protruding on one side near the second bracket (200). The limiting post (130) passes through the mounting cavity (310) and is located at the limiting opening (260).

6. The backshell connection structure (10) of claim 1, wherein, The second bracket (200) is provided with a mounting boss (270), the mounting boss (270) has a through hole (2710), the through hole (2710) is connected to the mounting area (110) through the mounting cavity (310), and the mounting boss (270) is provided with a plurality of limiting steps (2720), the plurality of limiting steps (2720) are distributed along the circumference of the mounting boss (270).

7. The backshell connection structure (10) of claim 1, wherein, The back panel (300) is a one-piece molded structure.

8. The backshell connection structure (10) of claim 1, wherein, There are multiple hot-melt locking posts (120) and limiting grooves (210), with each hot-melt locking post (120) corresponding to each limiting groove (210).

9. The backshell connection structure (10) of claim 1, wherein, The backplate (300) includes a modified transparent layer, an ink layer and an electroplated layer in sequence along its horizontal thickness direction. The modified transparent layer is located on the side away from the second support (200), and the electroplated layer is located on the side close to the second support (200).

10. A handset, comprising: Includes a camera and a back shell connection structure (10) as described in any one of claims 1 to 9, wherein the camera is mounted in the first bracket.

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