A mobile phone shielding cover

Abstract

The utility model relates to mobile phone accessory technical field, concretely is a mobile phone shielding cover, including: shielding seat, presents the frame shape for connecting on the circuit board, shielding cover is connected with shielding seat, can open and shut type cover setting on the window of shielding seat far from circuit board one side, shielding cover with shielding seat separable connection. The mobile phone shielding cover is split type design, satisfies the maintenance electronic component when not needing integral disassembly shielding cover, avoids the damage other electronic component in the process of disassembly, wherein, shielding cover can install two sides, can conveniently disassemble and install, can be used repeatedly, shield the cover inside component and facilitate maintenance, integrated forming has reduced processing cost.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone accessories technology, specifically to a mobile phone shielding cover. Background Technology

[0002] Mobile phones integrate a large number of sophisticated electronic components, which are susceptible to external electromagnetic interference during operation, thus affecting the phone's performance. To address this issue, shielding covers have become an indispensable component of mobile phones, providing electromagnetic shielding protection for these electronic components.

[0003] There are two main methods for fixing mobile phone shielding covers on the market: one-piece soldering onto the motherboard and one-piece mounting / removing onto the motherboard. While the one-piece soldering method ensures the stability and shielding effect of the cover to a certain extent, it is difficult to disassemble and may damage other electronic components during the disassembly process. The one-piece mounting / removing method cannot have a moving connection and unlocking structure; it usually uses a deformation-like connection and unlocking structure, similar to a snap-fit. If it is an exposed snap-fit, the motherboard needs to form a step-like structure, which usually increases the production cost of the motherboard and is less commonly used. If it is a through-type snap-fit, the motherboard needs to be disassembled to remove the shielding cover.

[0004] In conclusion, existing mobile phone shielding covers are clearly insufficient in terms of convenience for repairing electronic components. Utility Model Content

[0005] The purpose of this application is to provide a mobile phone shielding cover to solve the technical problem of difficulty in disassembly in the prior art.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] A mobile phone shielding cover includes: a shielding base, which is frame-shaped and used to connect to a circuit board; and a shielding cover, which is connected to the shielding base and can be opened and closed to cover a window on the side of the shielding base away from the circuit board. The shielding cover and the shielding base are detachably connected.

[0008] Preferably, the surface of the shielding cover is coated with a graphene coating.

[0009] Preferably, the shielding base is provided with a connecting shaft on the side near the shielding cover. The connecting shaft is located outside the shielding base. The two connecting shafts are symmetrically arranged with respect to the center of the shielding base. The two connecting shafts are parallel and not collinear. The shielding cover is provided with U-shaped spring pieces with opposite opening directions at opposite ends. The U-shaped spring pieces are sleeved on the connecting shaft from the opening. The U-shaped spring pieces abut against the connecting shaft to limit the shielding cover and subject it to limiting forces in the vertical and horizontal directions.

[0010] Preferably, the position where the U-shaped spring abuts against the connecting shaft is set as a limiting part. The limiting part is located on the end of the U-shaped spring that is not connected to the shielding cover, forming a shaft-detachment gap. The shaft-detachment gap extends to the position where the U-shaped spring is connected to the shielding cover, so that the opening width of the U-shaped spring is greater than or equal to the diameter of the connecting shaft.

[0011] Preferably, the connecting shaft is provided with an elastic pad, which abuts against the limiting part.

[0012] Preferably, the upper surface of the shielding seat abuts against the shielding cover; the shielding seat is higher than the abutting point on both sides along the axial direction of the connecting shaft, so that the inner wall of the shielding seat abuts against the shielding cover.

[0013] Preferably, the shielding cover and the U-shaped spring are integrally formed.

[0014] Preferably, the two U-shaped springs are identical; the two connecting shafts are identical.

[0015] Preferably, the shielding cover is made of beryllium bronze.

[0016] The beneficial effects of the mobile phone shield provided in this application are as follows:

[0017] Compared with the prior art, the mobile phone shielding cover of this application is a split design, which allows the shielding cover to be disassembled as a whole when repairing electronic components, avoiding damage to other electronic components during disassembly. The shielding cover can be installed on both sides, making it easy to disassemble and install, and it can be reused, which facilitates the maintenance of the components inside the shielding cover. The integrated molding reduces the processing cost. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an exploded structural diagram of an embodiment of this application;

[0020] Figure 2 This is a three-dimensional structural diagram of an embodiment of this application;

[0021] Figure 3 As an embodiment of this application Figure 2 Cross-sectional view of line AA in the middle;

[0022] Figure 4 for Figure 3 A magnified view of a portion at point A shown;

[0023] Figure 5 for Figure 3 A magnified view of a portion at point B shown;

[0024] Figure 6 For along Figure 2 Cross-sectional view of the middle BB line;

[0025] Figure 7 This is a partial schematic diagram showing the shielding cover in disassembled state.

[0026] The following are the labeling elements in the figure:

[0027] 1. Shielding base; 11. Connecting shaft; 12. Shaft detachment gap; 2. Shielding cover; 21. U-shaped spring; 22. Graphene coating; 3. Circuit board; 4. Elastic pad; 5. Limiting part.

[0028] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only 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. Therefore, they should not be construed as limitations on this application.

[0032] 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 that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] The following is combined with Figures 1 to 7 This application describes a mobile phone shielding cover provided in an embodiment.

[0034] like Figure 1 and Figure 2 As shown in the figure, a mobile phone shielding cover according to an embodiment of this application includes: a shielding base 1, which is rectangular and made of metal material. Its bottom is welded to a circuit board 3. The shielding base 1 encloses the electronic components that need to be shielded from electromagnetic interference. A shielding cover 2 is detachably disposed on the shielding base 1. The detachable disposal means that the shielding cover 2 can be fully opened to the side of the shielding base 1 away from the circuit board 3. The shielding cover 2 and the shielding base 1 are detachably connected. The detachable disposal means that the shielding cover 2 can be completely removed from the shielding base 1. In summary, when repairing electronic components, the shielding base 1 can be left in place without obstructing the components, thus allowing for repair. Since the shielding cover 2 is always above the electronic components when separating from the shielding base 1, it is less likely to damage the electronic components. Furthermore, the circuit board 3 does not need to be formed with a stepped structure similar to that used for fastening components, and the shielding cover 2 does not need to be removed before it can be removed, thereby improving the convenience of repair.

[0035] In this embodiment, the shielding cover 2 is completely separated from the shielding base 1 because the electronic components on the circuit board 3 are densely arranged. This ensures that the shielding cover 2 does not block other electronic components and can meet other maintenance needs. However, in other embodiments, if the electronic components are not densely arranged, or if the shielding cover is near the edge of the circuit board 3, the shielding cover 2 can be partially separated from the shielding base 1. That is, when the shielding cover 2 opens the window of the shielding base 1 away from the circuit board 3, the shielding cover 2 is still connected to the shielding base 1.

[0036] In order to achieve the opening and closing coverage of the shielding cover 2, the shielding cover 2 can be implemented by sliding. However, the sliding method needs to ensure that there are no surrounding devices that will obstruct the shielding cover 2 when it moves. This is difficult to achieve on the mobile phone circuit board 3. Therefore, in order to better adapt to the mobile phone circuit board 3, the shielding cover 2 will be separated from the shielding base 1 by directly facing upward.

[0037] like Figures 3 to 5As shown, a connecting shaft 11 is provided on the side of the shielding base 1 near the shielding cover 2. The connecting shaft 11 is cylindrical in shape and is located on the outside of the shielding base 1. The two connecting shafts 11 are symmetrically arranged with respect to the center of the shielding base 1. The two connecting shafts 11 are parallel and not collinear, so that the length direction of each connecting shaft 11 can be parallel to the edge of the shielding base 1 that is closest to the connecting shaft 11.

[0038] Meanwhile, the shielding cover 2 has U-shaped spring pieces with opposite opening directions at both ends. The U-shaped spring pieces 21 can undergo elastic deformation, mainly concentrated in the opening and closing of the openings of the U-shaped spring pieces 21. The U-shaped spring pieces 21 are fitted onto the connecting shaft 11 from the opening. One U-shaped spring piece 21 is fitted onto the connecting shaft 11 from top to bottom, with its opening facing the circuit board 3. The other U-shaped spring piece 21 is fitted onto the connecting shaft 11 from bottom to top, with its opening away from the circuit board 3. It should be noted that the U-shaped spring pieces 21 and the connecting shaft 11 are in a limiting contact to limit the shielding cover 2 in both vertical and horizontal directions. The vertical direction is the direction of approach and distance. In the direction away from the circuit board 3, the horizontal direction is the direction of the line connecting the two connecting shafts 11. In the horizontal direction, there is another direction that is parallel to the length of the connecting shaft 11. This limiting direction is generated when the connecting shaft 11 is formed. The reason is that the connecting shaft 11 is located outside the shielding seat 1. In order to form the connecting shaft 11, the end of the connecting shaft 11 is connected to a block. This block is connected to the outside of the shielding seat 1. This block will definitely abut against the U-shaped spring piece 21 with the opening facing upward. Therefore, the limiting direction in the horizontal direction that is parallel to the length of the connecting shaft 11 is naturally present when the connecting shaft 11 is formed.

[0039] like Figure 7 As shown, when disassembling the shielding cover 2, first pry open the U-shaped spring piece 21 with its opening facing downwards. Then, rotate the shielding cover 2 to separate the U-shaped spring piece 21 from the connecting shaft 11. Continue rotating the shielding cover 2 until the U-shaped spring piece 21, which was originally facing upwards, now faces downwards. Then, pry open the U-shaped spring piece 21, which is still connected to the connecting shaft 11. Finally, let the U-shaped spring piece 21 detach from the connecting shaft 11, thus separating the shielding cover 2 from the shielding base 1. Throughout this process, no other tools are needed, and forced disassembly that could deform the shielding cover 2 and render it unusable is avoided.

[0040] In this embodiment, since the U-shaped spring piece 21 with the opening facing downwards is fitted onto the connecting shaft 11 from top to bottom, there is no need for a gap between the connecting shaft 11 with the opening facing downwards and the shielding seat 1. This increases the strength of the shielding seat 1 near the U-shaped spring piece 21 with the opening facing downwards. In this way, when the shielding cover 2 is removed, the position of the shielding seat 1 near the U-shaped spring piece 21 with the opening facing downwards will not be damaged. However, there is still a gap between the connecting shaft 11 with the opening facing upwards and the shielding seat 1.

[0041] In this regard, the smaller the opening range of the U-shaped spring 21, the longer the service life of the shielding cover can be. Based on this, it is preferable that the U-shaped spring 21 and the connecting shaft 11 are in a line contact or a near-line contact surface contact state, that is, to reduce the contact area between the U-shaped spring 21 and the connecting shaft 11. To facilitate the description of how the U-shaped spring 21 and the connecting shaft 11 abut, the contact position between the U-shaped spring 21 and the connecting shaft 11 is set as a limiting part 5. Specifically, the limiting part 5 is located at the end of the U-shaped spring 21 that is not connected to the shielding cover 2. If the U-shaped spring 21 with its opening facing upwards is positioned beyond half the horizontal centerline of the connecting shaft 11, the limiting part 5 needs to abut against the half of the connecting shaft 11 away from the circuit board 3, while the limiting part 5 of the U-shaped spring 21 with its opening facing downwards needs to abut against the half of the connecting shaft 11 close to the circuit board 3. Since only the limiting part 5 abuts against the connecting shaft 11, a shaft separation gap 12 will be formed. The shaft separation gap 12 extends to the position where the U-shaped spring 21 is connected to the shielding cover 2, and the opening width of the U-shaped spring 21 will be greater than or equal to the diameter of the connecting shaft 11.

[0042] In summary, during disassembly, the U-shaped spring 21 with its opening facing downwards only needs a slight deformation to separate from the connecting shaft 11, while the U-shaped spring 21 with its opening facing upwards can be removed from the connecting shaft 11 without any deformation when the shielding cover 2 is rotated to the predetermined angle. This facilitates disassembly and reduces the degree of deformation of the U-shaped spring 21. Similarly, during installation, the U-shaped spring 21 with its opening facing upwards can be installed on the connecting shaft 11 without deformation, while the U-shaped spring 21 with its opening facing downwards only needs a slight deformation to fit onto the connecting shaft 11. Therefore, the service life of the shielding cover can be improved.

[0043] If the U-shaped spring 21 and the connecting shaft 11 are in rigid contact and the contact area is very small, the assembly accuracy requirements between the U-shaped spring 21 and the connecting shaft 11 are very high. In order to appropriately reduce this requirement, an elastic pad 4 is provided at the contact point between the U-shaped spring 21 and the connecting shaft 11. The elastic pad 4 is installed on the connecting shaft 11 at a position corresponding to the limiting part 5, so as to offset the assembly error between the U-shaped spring 21 and the connecting shaft 11 by means of the slight deformation of the elastic pad 4. Although the elastic pad 4 increases the contact area, it still maintains a smaller contact area between the U-shaped spring 21 and the connecting shaft 11, maintains the stability of the installation and the service life, and reduces the difficulty and cost of processing.

[0044] like Figure 6 As shown, since the contact area between the U-shaped spring 21 and the connecting shaft 11 is small, in order to further improve the ability of the shielding cover 2 to resist the external environment, such as when the mobile phone is bumped, the shielding cover 2 and the shielding seat 1 will not shift or deform, the following settings are made: the upper surface of the shielding seat 1 abuts against the shielding cover 2 to provide the shielding cover 2 with sufficient support force to prevent the shielding cover 2 from being deformed by pressure.

[0045] Meanwhile, the shielding seat 1 is higher than the contact surface of the shielding cover 2 and the shielding seat 1 on both sides along the axial direction of the connecting shaft 11. In this way, the inner walls of the shielding seat 1 on both sides not connected to the connecting shaft 11 can abut against the side walls of the shielding cover 2, thereby increasing the limiting force on the shielding cover 2 along the direction of the connecting shaft 11, providing better fixation and improving the shielding effect. At the same time, it has a guiding function when installing the shielding cover 2, making it convenient to position the shielding cover 2 during installation.

[0046] like Figure 3 As shown, the shielding cover 2 and the U-shaped spring piece 21 are integrally formed, which improves the overall strength while reducing the processing cost.

[0047] The two U-shaped springs 21 are identical; the two connecting shafts 11 are identical, which allows the shielding cover 2 to be installed in both directions, making installation convenient and improving ease of use.

[0048] In some embodiments, to improve electromagnetic shielding performance, the outer surface of the shielding cover 2 is coated with a graphene coating 22. The graphene coating 22 has good conductivity and electromagnetic shielding performance, and can effectively absorb and reflect electromagnetic waves, reducing electromagnetic interference.

[0049] In this embodiment, the shielding cover 2 is made of beryllium bronze. This material was chosen because the shielding cover 2 needs to simultaneously perform its shielding function and allow for a certain degree of elastic deformation. The beryllium bronze shielding cover 2 is less prone to plastic deformation during repeated opening and closing, thus extending the service life of the shielding cover. In other embodiments, when the shielding cover is fixedly mounted on the circuit board 3, only materials with high shielding performance need to be considered.

[0050] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A mobile phone shielding cover, characterized in that, include: A shielding base (1) is frame-shaped and is used to connect to a circuit board (3). A shielding cover (2) is connected to the shielding base (1) and can be opened and closed to cover the window on the side of the shielding base (1) away from the circuit board (3). The shielding cover (2) and the shielding base (1) can be detachably connected. A connecting shaft (11) is provided on the side of the shielding base (1) near the shielding cover (2). The connecting shaft (11) is located outside the shielding base (1). The two connecting shafts (11) are symmetrically arranged with respect to the center of the shielding base (1). The two connecting shafts (11) are parallel and not collinear. The shielding cover (2) is provided with U-shaped springs with opposite opening directions at opposite ends. The U-shaped springs (21) are sleeved on the connecting shafts (11) from the opening. The U-shaped springs (21) and the connecting shafts (11) are limited and abutted to make the shielding cover (2) subject to vertical and horizontal limiting forces.

2. The mobile phone shielding cover as described in claim 1, characterized in that: The position where the U-shaped spring (21) abuts against the connecting shaft (11) is set as a limiting part (5). The limiting part (5) is located on the end of the U-shaped spring (21) that is not connected to the shielding cover (2) and forms a shaft-detachment gap (12). The shaft-detachment gap (12) extends to the position where the U-shaped spring (21) is connected to the shielding cover (2) and is used to make the opening width of the U-shaped spring (21) greater than or equal to the diameter of the connecting shaft (11).

3. The mobile phone shielding cover as described in claim 2, characterized in that: The connecting shaft (11) is provided with an elastic pad (4), which abuts against the limiting part (5).

4. The mobile phone shielding cover as described in claim 3, characterized in that: The upper surface of the shielding seat (1) abuts against the shielding cover (2); the shielding seat (1) is higher than the abutting point on both sides along the axial direction of the connecting shaft (11), so that the inner wall of the shielding seat (1) abuts against the shielding cover (2).

5. The mobile phone shielding cover as described in claim 1, characterized in that: The shielding cover (2) and the U-shaped spring (21) are integrally formed.

6. The mobile phone shielding cover as described in claim 1, characterized in that: The two U-shaped springs (21) are identical; the two connecting shafts (11) are identical.

7. The mobile phone shielding cover as described in claim 1, characterized in that: The shielding cover (2) is coated with a graphene coating (22).

8. The mobile phone shielding cover as described in claim 1, characterized in that: The shielding cover (2) is made of beryllium bronze.

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