A set-top box shielding structure

Abstract

This utility model discloses a set-top box shielding structure, comprising a hollow frame and a cover with a bottom opening. An elastic element within an annular groove at the top of the frame allows for axial sliding adjustment of the cover after insertion. A first locking component at the top locks the cover to a screw hole at the bottom of the annular groove, allowing for height adjustment to create different sized accommodating spaces, greatly improving the shielding's versatility and adapting to various internal component layouts. The bottom extension of the frame features an elongated hole and a positioning groove, along with a second locking component. One end of a detachable sleeve in the component is inserted into the positioning groove for positioning, and the second locking component passes through the elongated hole and is fixed to the sleeve and the PCB board. The elongated hole allows the second locking component to be flexibly installed in different positions, and the sleeve can be removed or used as needed, meeting diverse installation environments and usage requirements, significantly enhancing the shielding's installation flexibility.

Description

Technical Field

[0001] This utility model relates to the field of shielding cover technology, specifically a set-top box shielding cover structure. Background Technology

[0002] In modern digital television technology, the set-top box, as a key device for receiving and decoding digital television signals, generates electromagnetic interference when its internal electronic components operate. It is also susceptible to interference from external electromagnetic signals, thus affecting the stability of signal reception and processing. Therefore, the set-top box shielding is crucial; it effectively shields against electromagnetic interference, providing a stable operating environment for the internal electronic components and ensuring the normal operation of the set-top box.

[0003] Currently, most set-top box shielding covers on the market adopt a fixed structure design, and their internal space cannot be adjusted according to actual installation needs, resulting in poor versatility. During installation, the method of fixing the shielding cover to the internal PCB board of the set-top box is relatively simple, making it difficult to adapt to PCB boards with different layouts and specifications, thus lacking installation flexibility. Furthermore, existing shielding covers lack flexibility in utilizing the bottom space, failing to meet the needs of adjusting airflow space in different scenarios, and thus have certain limitations in terms of heat dissipation performance and installation adaptability. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a set-top box shielding cover structure, which can effectively solve the technical problem of the single shielding cover structure currently used for set-top boxes.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A set-top box shielding structure includes a hollow frame and a cover with a bottom opening. The top of the frame has an annular groove, and a plurality of elastic elements are disposed in the annular groove.

[0007] One end of the bottom opening of the cover is inserted into the annular groove and axial sliding adjustment is achieved through an elastic element. The cover is fixed to the frame by a first locking component inserted at the top. One end of the first locking component passes through the cover and a pre-set screw hole at the bottom of the annular groove to achieve locking.

[0008] The bottom of the frame is provided with an outward extension. The bottom of the extension has a through elongated hole and several sets of positioning grooves distributed on both sides of the elongated hole for use. The extension is provided with several second locking components for fixing to the PCB board inside the set-top box. The second locking component includes a second locking member and a detachable sleeve. One end of the sleeve is inserted into the positioning grooves on both sides for positioning. The second locking member passes through the elongated hole and the inside of the sleeve from top to bottom and is fixed to the PCB board.

[0009] Furthermore, the elastic element is circumferentially disposed within the annular groove, and the elastic element is positioned by a lower retaining groove formed at the bottom of the annular groove and an upper retaining groove formed at the bottom of the cover.

[0010] Furthermore, the top of the cover is provided with a mounting groove for embedding the first locking component, and a locking insertion hole aligned with the corresponding screw hole is opened in the middle of the mounting groove.

[0011] Furthermore, the sleeve is cylindrical, and the opposite sides of the two positioning grooves in the same group are connected to the elongated hole, while the opposite sides of the two positioning grooves in the same group are provided with an arc-shaped surface with the same curvature as the sleeve.

[0012] Furthermore, the top of the cover is provided with heat dissipation holes.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The set-top box shielding cover provided by this utility model achieves adjustable height of the cover on the frame by adding an elastic element at the connection between the frame and the cover, forming different sized accommodating spaces, which is highly versatile; the second locking component can be installed in different positions through the elongated hole and used with a detachable sleeve, which can meet different installation environments and usage needs, and is highly flexible. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 This is an exploded view of the frame and cover assembly according to an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the cover structure of an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the framework structure of an embodiment of the present utility model;

[0019] Figure 5 This is an embodiment of the present utility model. Figure 4 Enlarged schematic diagram of section A in the middle;

[0020] Figure 6 This is a schematic diagram of the internal cross-sectional structure of the frame in an embodiment of the present invention;

[0021] Numbering on the map:

[0022] 1-Frame, 2-Cover, 3-Elastic element, 4-First locking assembly, 5-Second locking assembly;

[0023] 101-Annular groove, 102-Screw hole, 103-Extension, 104-Elongated hole, 105-Positioning groove, 106-Lower retaining groove;

[0024] 201-Upper card slot, 202-Mounting slot, 203-Locking hole, 204-Heat dissipation hole;

[0025] 501 - Second locking element, 502 - Sleeve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1-6 As shown, this utility model provides a set-top box shielding structure, which includes a hollow frame 1 and a cover 2 with an opening at the bottom. The cover 2 is mainly assembled on the frame 1 to form a sliding structure, which can be adjusted to different heights and then fixed during use.

[0028] When actually installing the cover 2 and the frame 1, since the top circumferential of the frame 1 has an annular groove 101 and several elastic elements 3 are provided in the annular groove 101, when one end of the bottom opening of the cover 2 is inserted into the annular groove 101, the elastic elements 3 will provide a certain elastic support force, so that the cover 2 can be axially slidably adjusted to adapt to different installation requirements and adjust the height between the cover 2 and the frame 1.

[0029] Once adjusted to the appropriate height, the cover 2 is fixed to the frame 1 by the first locking component 4 inserted into the top of the cover 2. Specifically, one end of the first locking component 4 passes through the locking insertion hole 203 in the middle of the mounting groove 202 provided on the top of the cover 2, and is threadedly locked with the screw hole 102 preset at the bottom of the annular groove 101, thereby firmly fixing the cover 2 to the frame 1.

[0030] When the shielding structure is installed on the PCB board inside the set-top box, the extension 103 at the bottom of the frame 1 plays a key role. The bottom of the extension 103 has a through elongated hole 104 and several sets of positioning grooves 105 distributed on both sides of the elongated hole 104 for use. The second locking component 5 is used to fix it.

[0031] The second locking assembly 5 includes a second locking member 501 and a detachable sleeve 502. When it is necessary to increase the space for airflow at the bottom, one end of the sleeve 502 is inserted into the corresponding positioning grooves 105 on both sides for positioning. Since the opposite sides of the two positioning grooves 105 in the same group are connected to the elongated hole 104, and the sides of the two positioning grooves 105 in the same group that are far apart from each other are provided with arc-shaped surfaces with the same curvature as the sleeve 502, the sleeve 502 can be positioned and supported well. Then, the second locking member 501 passes through the elongated hole 104 and the interior of the sleeve 502 from top to bottom and is fixed to the PCB board.

[0032] When there is no need to increase the bottom space, the sleeve 502 can be directly removed, allowing the second locking member 501 to pass through the elongated hole 104 and fit against the PCB board for flexible installation.

[0033] To ensure the stability of the elastic element 3 within the annular groove 101, the elastic element 3 is circumferentially positioned within the annular groove 101. The elastic element 3 is positioned by a lower locking groove 106 at the bottom of the annular groove 101 and an upper locking groove 201 at the bottom of the cover 2, thus preventing the elastic element 3 from shifting during use and affecting the height adjustment function between the cover 2 and the frame 1.

[0034] In addition, the top of the cover 2 is provided with heat dissipation holes 204. During the operation of the set-top box, the heat generated can be dissipated in time through the heat dissipation holes 204, ensuring that the electronic components inside the set-top box work in a suitable temperature environment, thereby improving the stability and service life of the set-top box.

[0035] Compared with traditional technologies, the set-top box shield provided by this technical solution, by adding an elastic element 3 at the connection between the frame 1 and the cover 2, enables the height of the cover 2 on the frame 1 to be adjustable, forming different sizes of accommodating space, which is highly versatile; the second locking component 5 can be installed in different positions through the elongated hole 104 and used with the detachable sleeve 502, which can meet different installation environments and usage needs, and has good flexibility.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A set-top box shielding structure, comprising a hollow frame and a cover with a bottom opening, characterized in that: The top circumferential of the frame is provided with an annular groove, and a number of elastic elements are provided in the annular groove. One end of the bottom opening of the cover is inserted into the annular groove and axial sliding adjustment is achieved by the elastic element. The cover is fixed to the frame by the first locking component inserted at the top. One end of the first locking component passes through the screw hole at the bottom of the annular groove of the cover to achieve locking. The bottom of the frame is provided with an outward extension. The bottom of the extension has a through elongated hole and several sets of positioning grooves distributed on both sides of the elongated hole for use. The extension is provided with several second locking components for fixing to the PCB board inside the set-top box. The second locking component includes a second locking member and a detachable sleeve. One end of the sleeve is inserted into the positioning grooves on both sides for positioning. The second locking member passes through the elongated hole and the inside of the sleeve from top to bottom and is fixed to the PCB board.

2. The set-top box shielding structure according to claim 1, characterized in that: The elastic element is circumferentially disposed in the annular groove, and the elastic element is positioned by a lower slot at the bottom of the annular groove and an upper slot at the bottom of the cover.

3. The set-top box shielding structure according to claim 1, characterized in that: The top of the cover is provided with a mounting groove for embedding the first locking component, and a locking insertion hole aligned with the corresponding screw hole is opened in the middle of the mounting groove.

4. The set-top box shielding structure according to claim 1, characterized in that: The sleeve is cylindrical, and the opposite sides of the two positioning grooves in the same group are connected to the elongated hole. The opposite sides of the two positioning grooves in the same group are provided with an arc surface with the same curvature as the sleeve.

5. A set-top box shielding structure according to any one of claims 1-4, characterized in that: The top of the cover has heat dissipation holes.

Images