A heat-dissipating dustproof set-top box shell structure
By designing a detachable heat dissipation and dustproof structure, the problem of dust accumulation and cleaning difficulties on the set-top box casing is solved, achieving easy cleaning and efficient heat dissipation, simplifying the disassembly and maintenance process, and reducing the risk of short circuits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU HD ELECTRONICS TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-07-03
AI Technical Summary
Existing set-top box casings are prone to accumulating dust, making cleaning difficult and posing a short circuit risk. They are also inconvenient to disassemble and maintain, and have poor heat dissipation.
A detachable heat dissipation and dustproof structure is designed, including a detachable shell, an L-shaped clip, heat dissipation fins, and a locking structure. It can be cleaned by rinsing with water or brushing. The detachable heat dissipation fins enable rapid heat dissipation, and the locking structure simplifies disassembly and installation.
It achieves dust protection, simplifies the cleaning and maintenance process, improves heat dissipation efficiency, and reduces the risk of short circuits.
Smart Images

Figure CN224459882U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of set-top box technology, and in particular to a heat dissipation and dustproof set-top box shell structure. Background Technology
[0002] With the rapid development of digital television technology, set-top boxes, as key devices connecting televisions to external signal sources, occupy an important position in home entertainment systems. They convert compressed digital signals into television content and display it on the television, providing users with a rich and diverse audio-visual experience. However, throughout the development of set-top boxes, their casing design has faced numerous challenges and improvement needs. Currently, set-top boxes accumulate a lot of dust after prolonged use. As electrical appliances, set-top boxes cannot be directly washed with water; they can only be carefully wiped with a damp cloth. While this cleans them, it is not as thorough as direct rinsing, and the cloth needs to be washed afterward. There is also a risk of water from the damp cloth getting inside the set-top box, potentially causing a short circuit. Furthermore, the current set-top box casing is cumbersome to disassemble and maintain, typically using snap-fit or screw-type mechanisms, which are quite difficult to remove. Additionally, the current set-top box casing has poor heat dissipation. Therefore, we propose a heat-dissipating and dust-proof set-top box casing structure. Utility Model Content
[0003] The main purpose of this utility model is to provide a heat dissipation and dustproof set-top box shell structure, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A heat-dissipating and dust-proof set-top box housing structure includes a main housing. An infrared receiving module is embedded in the front surface of the main housing. A removable heat dissipation structure is installed on the upper surface of the main housing. A fin embedding groove is opened at the upper port of the main housing near the edge of the front surface. An HDMI interface is provided on the rear surface of the main housing. An IPTV port is provided on one side of the HDMI interface on the rear surface of the main housing. A power interface is provided on the other side of the HDMI interface on the rear surface of the main housing. A locking structure is fixedly installed on the inner bottom surface of the main housing.
[0006] Preferably, the detachable heat dissipation structure includes a detachable shell, L-shaped clips, heat dissipation fins, and lock holes. L-shaped clips are fixedly installed on the inner upper surface of the detachable shell near both sides. Heat dissipation fins are fixedly installed on both the inner and outer upper surfaces of the detachable shell. Lock holes are provided on the upper surface of the detachable shell between the heat dissipation fins.
[0007] Preferably, the connecting block is configured to match the L-shaped block.
[0008] Preferably, the locking structure includes a vertical rod, a limiting groove, a spring, and a locking pin. The upper end of the vertical rod has a limiting groove, the bottom surface of the limiting groove is connected to a spring, and the upper end of the spring is connected to a locking pin.
[0009] Preferably, the locking pin is also slidably disposed at the port position of the limiting groove, and the locking pin is disposed directly below the lock hole.
[0010] Compared with the prior art, the present invention has the following beneficial effects:
[0011] In this utility model, the heat dissipation and dustproof set-top box shell structure allows the detachable heat dissipation structure on the upper part, which is prone to accumulating dust or dirt, to be disassembled for water washing or brushing. After brushing and drying, it can be easily installed. Subsequent maintenance can also be carried out by disassembling this structure, which is more convenient. Furthermore, the all-metal design of the detachable heat dissipation structure can effectively dissipate heat quickly through the heat dissipation fins, providing better heat dissipation protection for the internal components. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of a heat dissipation and dustproof set-top box shell structure according to the present invention;
[0013] Figure 2 This is a disassembled view of the heat dissipation and dustproof set-top box shell structure according to the present invention;
[0014] Figure 3 This is a partial disassembly view of the heat dissipation and dustproof casing structure of a set-top box according to the present invention;
[0015] Figure 4 This is a cross-sectional view of the locking structure of a set-top box shell structure for heat dissipation and dust prevention according to this utility model.
[0016] In the diagram: 1. Main housing; 2. Infrared receiving module; 3. Detachable heat dissipation structure; 31. Detachable housing; 32. L-shaped locking block; 33. Heat dissipation fins; 34. Lock hole; 4. Fin embedding slot; 5. IPTV port; 6. HDMI interface; 7. Power interface; 8. Connecting block; 9. Locking structure; 91. Upright pole; 92. Limiting slot; 93. Spring; 94. Locking pin. Detailed Implementation
[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0018] Example 1:
[0019] like Figure 1-4As shown, a heat-dissipating and dust-proof set-top box shell structure includes a main shell 1. An infrared receiving module 2 is embedded in the front surface of the main shell 1. A detachable heat dissipation structure 3 is installed on the upper surface of the main shell 1. A fin embedding groove 4 is opened at the upper port of the main shell 1 near the edge of the front surface. An HDMI interface 6 is provided on the rear surface of the main shell 1. An IPTV port 5 is provided on one side of the HDMI interface 6 on the rear surface of the main shell 1. A power interface 7 is provided on the other side of the HDMI interface 6 on the rear surface of the main shell 1. A locking structure 9 is fixedly installed on the inner bottom surface of the main shell 1. The set-top box shell structure is in a completely sealed state during use, preventing external dust from entering and providing good dustproof effect. The heat dissipation is sufficient to achieve the heat dissipation effect through the detachable heat dissipation structure 3.
[0020] The detachable heat dissipation structure 3 includes a detachable housing 31, L-shaped latches 32, heat dissipation fins 33, and a locking hole 34. L-shaped latches 32 are fixedly installed on the inner upper surface of the detachable housing 31 near both sides. Heat dissipation fins 33 are fixedly installed on both the inner and outer upper surfaces of the detachable housing 31. A locking hole 34 is provided on the upper surface of the detachable housing 31 between the heat dissipation fins 33. With the detachable heat dissipation structure 3, the detachable housing 31 can slide forward along the upper port of the main housing 1 when the locking structure 9 is unlocked. The principle of removal is that the L-shaped card block 32 is released from the restriction of the connecting card block 8, so it can be removed from the position where there is no connecting card block 8 at the upper port of the main housing 1. Conversely, when installation is required, the L-shaped card block 32 is embedded into the interior of the main housing 1, and at the same time, the heat dissipation fins 33 on the inner side of the removable housing 31 are just embedded in the fin embedding groove 4. Then, the removable housing 31 is pushed towards the connecting card block 8, so that the connecting card block 8 is engaged in the groove formed by the L-shaped card block 32 and the removable housing 31, thereby limiting the removable housing 31 from being disassembled upwards.
[0021] The connecting block 8 is matched with the L-shaped block 32; the connecting block 8 can be inserted into the slot formed by the L-shaped block 32 and the detachable housing 31, thereby limiting the detachable housing 31 from moving upward.
[0022] The locking structure 9 includes a vertical rod 91, a limiting groove 92, a spring 93, and a locking pin 94. The upper end of the vertical rod 91 has a limiting groove 92, and the bottom surface of the limiting groove 92 is connected to the spring 93. The upper end of the spring 93 is connected to the locking pin 94. When the detachable housing 31 is installed on the upper port of the main housing 1, it will squeeze the upper end of the locking pin 94, causing the upper end of the locking pin 94 to move down and compress the spring 93. As the detachable housing 31 is pushed, the upper end of the locking pin 94 is engaged in the lock hole 34 under the rebound of the spring 93, thereby locking the detachable housing 31.
[0023] The locking pin 94 is also slidably positioned at the port of the limiting groove 92, and the locking pin 94 is positioned directly below the lock hole 34.
[0024] It should be noted that this utility model is a set-top box shell structure for heat dissipation and dust prevention. When cleaning is required, simply press the locking pin 94 with a pen tip or other small stick to disengage the locking pin 94 from the lock hole 34 port. Then, the detachable shell 31 can be slid forward. When it cannot slide, the detachable shell 31 can be lifted upward to complete the disassembly. After disassembly, the detachable shell 31 should not contain any components, so it can be directly rinsed or brushed. After drying, simply insert the L-shaped card block 32 into the front port of the main shell 1 and push it backward to automatically lock it in place and lock it automatically through the locking structure 9. Disassembly and installation are very simple and convenient for subsequent maintenance. The set-top box shell structure is completely sealed, which can effectively prevent dust from entering. Heat dissipation is efficiently achieved through the physical heat dissipation of the heat dissipation fins 33. The principle is that heat energy moves upward, causing the heat dissipation fins 33 inside to be heated quickly and over a large area. Then, through the good conductor properties of metal heat, the heat energy is quickly transferred to the external heat dissipation fins 33 and dissipated through external air circulation.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A heat-dissipating and dust-proof set-top box shell structure, characterized in that: The main housing (1) includes an infrared receiving module (2) embedded on the front surface of the main housing (1), a detachable heat dissipation structure (3) covering the upper surface of the main housing (1), a fin embedding groove (4) opened on the upper port of the main housing (1) near the edge of the front surface, an HDMI interface (6) provided on the rear surface of the main housing (1), an IPTV port (5) provided on one side of the HDMI interface (6) on the rear surface of the main housing (1), a power interface (7) provided on the other side of the HDMI interface (6) on the rear surface of the main housing (1), a connecting block (8) fixedly provided on the inner side of the upper port of the main housing (1), and a locking structure (9) fixedly installed on the inner bottom surface of the main housing (1).
2. The dustproof and heat-dissipating set top box shell structure according to claim 1, characterized in that: The detachable heat dissipation structure (3) includes a detachable housing (31), an L-shaped locking block (32), heat dissipation fins (33), and a locking hole (34). The inner upper surface of the detachable housing (31) is fixedly installed with L-shaped locking blocks (32) near both sides. The inner upper surface and the outer upper surface of the detachable housing (31) are fixedly installed with heat dissipation fins (33). The upper surface of the detachable housing (31) is provided with a locking hole (34) between the heat dissipation fins (33).
3. The heat dissipation and dustproof set-top box housing structure according to claim 2, characterized in that: The connecting block (8) is matched with the L-shaped block (32).
4. The dustproof and heat-dissipating set-top box shell structure according to claim 3, characterized in that: The locking structure (9) includes a vertical rod (91), a limiting groove (92), a spring (93) and a locking pin (94). The upper end of the vertical rod (91) has a limiting groove (92), the bottom surface of the limiting groove (92) is connected to the spring (93), and the upper end of the spring (93) is connected to the locking pin (94).
5. The dustproof and heat-dissipating set-top box housing structure according to claim 4, characterized in that: The locking pin (94) is also slidably disposed at the port position of the limiting groove (92), and the locking pin (94) is disposed directly below the lock hole (34).