Heat dissipation structure for 8K set top box
By designing a heat dissipation component composed of a thermal conductivity layer and a heat dissipation aluminum sheet on the 8K set-top box, the problem of overheating of high-performance set-top box is solved, and more efficient heat dissipation effect is achieved, extending the service life of the equipment.
Patent Information
- Application Number
- CN202421117337.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-21
AI Technical Summary
High-performance multi-function set-top boxes such as 8K set-top boxes generate a lot of heat when processing high-resolution videos and images, resulting in overheating and performance degradation. The existing heat dissipation structure cannot effectively meet its heat dissipation needs.
A heat dissipation structure for 8K set-top boxes is designed, including a heat dissipation shell and a heat dissipation assembly installed in the shell. The heat dissipation assembly consists of a thermal conductive layer and a heat dissipation aluminum sheet, which is equipped with heat dissipation fins and through holes to enhance air convection and heat exchange.
Through the combination of thermal conductivity layer and heat dissipation aluminum sheet, the heat conduction and the air convection contact surface and time are expanded, the heat dissipation efficiency is improved, the problem of overheating of 8K set-top box is avoided, and the service life of the equipment is extended.
Smart Images
Figure CN222602862U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat dissipation of set-top boxes, and in particular to a heat dissipation structure for an 8K set-top box. Background Art
[0002] A set-top box is a digital television device that is widely used in family life. In recent years, with the development of electronic technology, the performance and functions of set-top boxes have been greatly improved, and set-top boxes with stronger performance and more functions are widely used in various fields.
[0003] However, high-performance multi-function set-top boxes consume a lot of power. For example, high-performance devices such as 8K set-top boxes generate a lot of heat when processing high-resolution videos and images, leading to overheating and performance degradation. Heat dissipation has become a major problem for high-performance multi-function set-top boxes. If the heat dissipation performance of the device is poor, it will affect the performance and life of the set-top box.
[0004] The traditional heat dissipation solution is usually to set corresponding heat dissipation holes on the opposite sides of the set-top box shell to dissipate heat to the circuit components inside the set-top box through air convection. However, this heat dissipation method relies on heat dissipation through the heat dissipation holes, and the flow rate of the heat dissipation holes is slow, which is not enough to effectively meet the heat dissipation requirements of 8K set-top boxes. Summary of the invention
[0005] The utility model provides a heat dissipation structure for an 8K set-top box, which solves the technical problem that the existing heat dissipation structure of the set-top box has a poor heat dissipation effect.
[0006] In order to solve the above technical problems, the utility model provides a heat dissipation structure for an 8K set-top box, comprising a heat dissipation shell, and a heat dissipation component installed in the heat dissipation shell, wherein the heat dissipation component comprises a heat dissipation aluminum sheet and a heat conductive layer; one end surface of the heat conductive layer is in close contact with the heating device, and the other end surface is in close contact with the heat dissipation aluminum sheet;
[0007] A plurality of first heat dissipation fins are arranged at one end of the heat dissipation aluminum sheet close to the heat dissipation shell, and a second heat dissipation fin is also arranged at one side of the heat dissipation aluminum sheet. The second heat dissipation fins are vertically arranged in space with the first heat dissipation fins.
[0008] In a further embodiment, the main body of the heat sink aluminum sheet is a horizontal plate surface, one end of the horizontal plate surface is connected to the first heat sink fin, and one side is connected to the second heat sink fin; a plurality of mounting screw holes are provided in the middle of the horizontal plate surface, and a plurality of heat dissipation through holes are also provided through the plate surface.
[0009] This solution sets a horizontal plate surface close to the heat-generating device, which can fully conduct heat on the one hand and provide a through-flow space to assist air convection on the other hand. At the same time, through-flow heat-dissipating holes are set on the heat-dissipating aluminum sheet to increase the convection path between the surface of the heat-generating device (such as PCB) and the external air, further improving the heat dissipation efficiency.
[0010] In a further embodiment, one end of the first heat dissipation fin is horizontally bent and connected to the horizontal plate surface, and the other end extends downward to form a first vertical plate surface, and the first vertical plate surface is parallel to the side wall of the heat dissipation housing.
[0011] This solution takes into account the mechanism of cold air sinking and sets a first heat dissipation fin that bends downward to expand the contact area with the cold air at the air inlet. On the other hand, it assists the entry of cold air so that it contacts the main body of the heat dissipation aluminum sheet, thereby optimizing the heat dissipation effect.
[0012] In a further embodiment, one end of the second heat dissipation fin is horizontally bent and connected to the horizontal plate surface, and the other end extends upward to form a second vertical plate surface, and the second vertical plate surface is parallel to the side wall of the heat dissipation housing.
[0013] This solution provides a second vertical plate surface extending inward, which continuously exchanges heat with the airflow when the airflow enters the air inlet but before reaching the air outlet, effectively extending the heat exchange area and heat exchange time, thereby optimizing the heat dissipation effect.
[0014] In a further embodiment, the heat dissipation shell includes an upper cover, a lower cover, a surrounding plate and a rear cover, and the upper cover, the lower cover, the surrounding plate and the rear cover are enclosed to form the heat dissipation shell; a plurality of first heat dissipation holes are opened on the top surface of the upper cover, and the first heat dissipation holes are evenly distributed in a plurality of rows, and the first heat dissipation holes in two adjacent rows are staggered.
[0015] In a further embodiment, a plurality of second heat dissipation holes are opened on the side walls of both sides of the enclosure, the second heat dissipation holes are evenly distributed in a plurality of rows, and the second heat dissipation holes in two adjacent rows are staggered; the inner side surfaces of the second heat dissipation holes are close to the first heat dissipation fins.
[0016] In a further embodiment, the first heat dissipation hole is an elliptical through hole or a strip-shaped through hole;
[0017] The second heat dissipation hole is an elliptical through hole or a strip-shaped through hole.
[0018] In this solution, a second heat dissipation hole is opened on the side wall of the enclosure to receive cold air from a low position, and a plurality of first heat dissipation holes are opened on the top surface of the upper cover to conduct the hot air after heat exchange, and the height difference is used to assist in accelerating the circulation of airflow and optimize the heat exchange efficiency.
[0019] In a further embodiment, the thermally conductive layer is a thermally conductive silicone layer formed by coating.
[0020] The beneficial effects of the utility model are as follows:
[0021] The heat from the heating device is introduced into the heat dissipation aluminum sheet through the thermally conductive silicone layer, and the heat from the heating device is dissipated through air heat exchange by utilizing the uniform thermal conductivity of the heat dissipation aluminum sheet. At the same time, a first heat dissipation fin is arranged near the air inlet of the heat dissipation shell to expand the contact surface with the air; a parallel second heat dissipation fin is arranged in the channel area formed by air convection to extend the contact time with the air, thereby increasing the heat dissipation area within a limited space, making the contact surface with the air convection wider and the contact time longer, thereby further improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the heating of the heating device provided in the embodiment of the utility model;
[0023] Figure 2 This is a top view of a heat dissipation aluminum sheet B of a heat dissipation structure for an 8K set-top box provided by an embodiment of the utility model;
[0024] Figure 3 The utility model embodiment provides Figure 2 Side view of
[0025] Figure 4 The utility model embodiment provides Figure 2 Another side view of;
[0026] Figure 5 It is a three-dimensional structural diagram of the heat dissipation housing A provided in an embodiment of the utility model;
[0027] Including: heat dissipation shell A, heat dissipation aluminum sheet B;
[0028] First heat dissipation fin 1 , second heat dissipation fin 2 , horizontal plate surface 3 , mounting screw holes 31 , heat dissipation through holes 32 ; upper cover 4 , first heat dissipation holes 41 ; enclosure 5 , second heat dissipation holes 51 ; screws 6 . DETAILED DESCRIPTION
[0029] The following is a detailed explanation of the implementation mode of the present invention in conjunction with the accompanying drawings. The embodiments are provided for illustrative purposes only and cannot be understood as limitations on the present invention. The accompanying drawings are provided for reference and illustration only and do not constitute limitations on the scope of patent protection of the present invention, because many changes can be made to the present invention without departing from the spirit and scope of the present invention.
[0030] The present invention provides a heat dissipation structure for an 8K set-top box, such as Figure 1~Figure 5As shown, in this embodiment, it includes a heat dissipation housing A, and a heat dissipation component installed in the heat dissipation housing A, and the heat dissipation component includes a heat dissipation aluminum sheet B and a heat conductive layer; one end surface of the heat conductive layer is in close contact with the heating device, and the other end surface is in close contact with the heat dissipation aluminum sheet B;
[0031] A plurality of first heat dissipation fins 1 are provided at one end of the heat dissipation aluminum sheet B close to the heat dissipation housing A, and a second heat dissipation fin 2 is further provided at one side of the heat dissipation aluminum sheet B. The second heat dissipation fin 2 is vertically arranged with respect to the first heat dissipation fin 1 in space.
[0032] In this embodiment, the heat-conducting layer is a heat-conducting silicone layer formed by coating.
[0033] In this embodiment, the main body of the heat dissipation aluminum sheet B is a horizontal plate surface 3, one end of the horizontal plate surface 3 is connected to the first heat dissipation fin 1, and one side is connected to the second heat dissipation fin 2; a plurality of mounting screw holes 31 are provided in the middle of the horizontal plate surface 3, and a plurality of heat dissipation through holes 32 penetrating the plate surface are also provided.
[0034] The heat dissipation through hole 32 can be set as a rectangular through hole or a circular through hole according to the heat dissipation requirements; the heat dissipation aluminum sheet B is fixed on the heating device through the mounting screw hole 31 and the screw 6.
[0035] In this embodiment, a horizontal plate surface 3 is arranged close to the heat generating device, which can fully conduct heat on the one hand and provide a through-flow space to assist air convection on the other hand. Meanwhile, a through-flow heat dissipation hole 32 is arranged on the heat dissipation aluminum sheet B to increase the convection path between the surface of the heat generating device (such as a PCB) and the external air, thereby further improving the heat dissipation efficiency.
[0036] In this embodiment, one end of the first heat dissipation fin 1 is horizontally bent and connected to the horizontal plate surface 3 , and the other end extends downward to form a first vertical plate surface, which is parallel to the side wall of the heat dissipation housing A.
[0037] This embodiment takes into account the mechanism of cold air sinking and sets a downwardly bent first heat dissipation fin 1 to expand the contact area with the cold air at the air inlet. On the other hand, it assists the entry of cold air so that it contacts the main body of the heat dissipation aluminum sheet B, thereby optimizing the heat dissipation effect.
[0038] In this embodiment, one end of the second heat dissipation fin 2 is horizontally bent and connected to the horizontal plate surface 3 , and the other end extends upward to form a second vertical plate surface, and the second vertical plate surface is parallel to the side wall of the heat dissipation housing A.
[0039] This embodiment is provided with a second vertical panel extending inward (toward the inner side of the set-top box), which continuously exchanges heat with the airflow when the airflow enters the air inlet but before reaching the air outlet, thereby effectively extending the heat exchange area and heat exchange time, thereby optimizing the heat dissipation effect.
[0040] In this embodiment, the heat dissipation shell A includes an upper cover 4, a lower cover, a surrounding plate 5 and a rear cover, and the upper cover 4, the lower cover, the surrounding plate 5 and the rear cover are enclosed to form the heat dissipation shell A; a plurality of first heat dissipation holes 41 are opened on the top surface of the upper cover 4, and the first heat dissipation holes 41 are evenly distributed in a plurality of rows, and the first heat dissipation holes 41 in two adjacent rows are staggered.
[0041] In this embodiment, a plurality of second heat dissipation holes 51 are opened on the side walls of the enclosure 5 . The second heat dissipation holes 51 are evenly distributed in a plurality of rows, and two adjacent rows of the second heat dissipation holes 51 are staggered. The inner side surfaces of the second heat dissipation holes 51 are close to the first heat dissipation fins 1 .
[0042] In this embodiment, the first heat dissipation hole 41 is an elliptical through hole or a strip-shaped through hole;
[0043] The second heat dissipation hole 51 is an elliptical through hole or a strip-shaped through hole.
[0044] In this embodiment, second heat dissipation holes 51 are opened on the side wall of the enclosure 5 to receive cold air from a low position, and a plurality of first heat dissipation holes 41 are opened on the top surface of the upper cover 4 to guide the hot air after heat exchange, and the height difference is used to assist in accelerating the circulation of airflow and optimize the heat exchange efficiency.
[0045] The beneficial effects of the embodiments of the utility model are as follows:
[0046] The heat from the heating device is introduced into the heat dissipation aluminum sheet B through the thermally conductive silicone layer, and the heat from the heating device is dissipated through air heat exchange by utilizing the uniform thermal conductivity of the heat dissipation aluminum sheet B. At the same time, a first heat dissipation fin 1 is arranged near the air inlet of the heat dissipation housing A to expand the contact surface with the air; parallel second heat dissipation fins 2 are arranged in the channel area formed by air convection to extend the contact time with the air, thereby increasing the heat dissipation area within a limited space, making the contact surface with the air convection wider and the contact time longer, further improving the heat dissipation effect.
[0047] See also Figure 1 The heat generating device is in the center, and the temperature is evenly diffused from the center to all sides. The utility model utilizes the close cooperation of the structural heat dissipation holes (the first heat dissipation holes 41 and the second heat dissipation holes 51) and the heat dissipation aluminum sheet B to conduct the heat of the heat generating device to the place with good air convection in the heat dissipation shell A, thereby achieving a good heat dissipation effect, improving the stability and performance of the 8K set-top box, and ensuring that it will not overheat and cause performance degradation during long-term use; it is easy to operate, light in design, effective, and low in cost; there is no need to add convection devices (such as fans, etc.), which reduces energy consumption and improves efficiency; no noise is generated, providing a quieter user experience.
[0048] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.
Claims
1. A heat dissipation structure for an 8K set-top box, characterized in that: It comprises a heat dissipation housing, and a heat dissipation component installed in the heat dissipation housing, wherein the heat dissipation component comprises a heat dissipation aluminum sheet and a heat conduction layer; one end surface of the heat conduction layer is in close contact with the heating device, and the other end surface is in close contact with the heat dissipation aluminum sheet; A plurality of first heat dissipation fins are arranged at one end of the heat dissipation aluminum sheet close to the heat dissipation shell, and a second heat dissipation fin is also arranged at one side of the heat dissipation aluminum sheet. The second heat dissipation fins are vertically arranged in space with the first heat dissipation fins.
2. The heat dissipation structure for an 8K set-top box according to claim 1, characterized in that: The main body of the heat sink aluminum sheet is a horizontal plate surface, one end of the horizontal plate surface is connected to the first heat sink fin, and one side is connected to the second heat sink fin; a plurality of mounting screw holes are arranged in the middle of the horizontal plate surface, and a plurality of heat dissipation through holes penetrating the plate surface are also arranged.
3. A heat dissipation structure for an 8K set-top box according to claim 2, characterized in that: One end of the first heat dissipation fin is horizontally bent and connected to the horizontal plate surface, and the other end extends downward to form a first vertical plate surface, and the first vertical plate surface is parallel to the side wall of the heat dissipation housing.
4. The heat dissipation structure for an 8K set-top box according to claim 2, characterized in that: One end of the second heat dissipation fin is horizontally bent and connected to the horizontal plate surface, and the other end is extended upward to form a second vertical plate surface, and the second vertical plate surface is parallel to the side wall of the heat dissipation housing.
5. The heat dissipation structure for an 8K set-top box according to claim 1, characterized in that: The heat dissipation shell includes an upper cover, a lower cover, a surrounding plate and a rear cover, and the upper cover, the lower cover, the surrounding plate and the rear cover are enclosed to form the heat dissipation shell; a plurality of first heat dissipation holes are opened on the top surface of the upper cover, and the first heat dissipation holes are evenly distributed in a plurality of rows, and the first heat dissipation holes in two adjacent rows are staggered.
6. The heat dissipation structure for an 8K set-top box according to claim 5, characterized in that: A plurality of second heat dissipation holes are provided on the side walls on both sides of the enclosure, the second heat dissipation holes are evenly distributed in a plurality of rows, and the second heat dissipation holes in two adjacent rows are staggered; the inner side surfaces of the second heat dissipation holes are close to the first heat dissipation fins.
7. The heat dissipation structure for an 8K set-top box according to claim 6, characterized in that: The first heat dissipation hole is an elliptical through hole or a strip-shaped through hole; The second heat dissipation hole is an elliptical through hole or a strip-shaped through hole.
8. The heat dissipation structure for an 8K set-top box according to claim 4, characterized in that: The heat-conducting layer is a heat-conducting silicone layer formed by coating.