An adapter to prevent overload

Abstract

This invention proposes an overload-prevention adapter, comprising an adapter body and an external heat dissipation assembly for cooling the adapter body. The heat dissipation assembly includes at least one active heat dissipation unit and at least one passive heat dissipation unit. The adapter body's outer shell is a closed structure. The passive heat dissipation unit is thermally connected to a heat source inside the adapter body, conducting heat from the adapter body to the outside. The active heat dissipation unit is located outside the adapter body and provides forced air cooling to the passive heat dissipation unit. This invention effectively prevents external dust from entering the adapter body through ventilation holes or fan gaps, ensuring that the accuracy of the adapter's overload protection is not affected by dust.

Description

Technical Field

[0001] This utility model relates to the field of electronic device accessories technology, and in particular to an adapter for preventing overload. Background Technology

[0002] When a power adapter is operating at high power for an extended period, its internal components will generate a large amount of heat. If this heat cannot be dissipated effectively and in a timely manner, the internal temperature of the adapter will rise sharply, which will not only affect its working efficiency and lifespan but may also cause safety hazards. In addition, adapters with overload protection mechanisms are more prone to generating heat due to overload.

[0003] Within the current technological framework, adapters generally employ ventilation holes or built-in fans in their casings to directly expel accumulated hot air for heat dissipation. However, during circulation, external air carries dust and various impurities, which can then enter the adapter through these ventilation holes or fan gaps. While filters can be added to intercept larger particles, the limited airflow requirements make it difficult for filters to completely block fine dust. Over time, the accumulated dust gradually covers the circuit boards and electronic components, forming a conductive dust layer or insulating grime. This not only leads to poor heat dissipation and increased contact resistance but also interferes with the accuracy of current monitoring sensors, causing overload protection thresholds to shift. Ultimately, this can reduce the accuracy of the adapter's overload protection function or even cause it to fail. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes an adapter to prevent overload.

[0005] To address the common problem of adapters using ventilation holes or built-in fans to directly expel accumulated hot air and achieve heat dissipation, the present invention addresses the issue that external air, during circulation, carries dust and various impurities that can enter the adapter through these ventilation holes or fan gaps. While filters can intercept larger particles, their effectiveness in blocking fine dust is limited by airflow requirements. Over time, accumulated dust gradually covers the circuit boards and electronic components, forming conductive dust layers or insulating grime. This not only leads to poor heat dissipation and increased contact resistance but also interferes with the accuracy of current monitoring sensors, causing overload protection threshold deviations and ultimately reducing the accuracy or even malfunction of the adapter's overload protection function. An overload protection adapter, comprising an adapter body; An external heat dissipation assembly is used to dissipate heat from the adapter body. The heat dissipation assembly includes at least one active heat dissipation unit and at least one passive heat dissipation unit. The adapter body shell is a closed structure, and the passive heat dissipation unit is thermally connected to the internal heat source of the adapter body, and conducts the heat inside the adapter body to the outside. The active heat dissipation unit is located outside the adapter body and provides forced air cooling for the passive heat dissipation unit.

[0006] Preferably, the passive heat dissipation unit includes: at least one heat pipe, which is fixedly connected to the side end of the adapter body, and the heat pipe is filled with a heat-conducting liquid to guide and dissipate the heat inside the adapter body to the outside; the active heat dissipation unit includes: an extension frame, a sliding plate, and a cooling fan disposed on the outside of the sliding plate, the extension frame is disposed on the outside of the adapter body, the sliding plate is movably connected to the inner wall of the outer end of the extension frame, and the cooling fan is used to dissipate heat from the heat pipe.

[0007] Preferably, it further includes: a groove and a boss slidably connected to the inner wall of the groove, the groove and the boss being respectively opened at the outer ends of the extension frame and the slide plate, for sliding and limiting the slide plate; a positioning hole and a positioning post being opened on the outer side of the extension frame, the inner side of the positioning post being inserted into the inner wall of the positioning hole, for adjusting and positioning the slide plate.

[0008] Preferably, a limiting ring is fixedly connected to the outer curved surface of the positioning post, a connecting spring is fixedly installed on the outer side of the limiting ring, and the end of the connecting spring away from the limiting ring is fixedly installed on the inner side of the extension plate.

[0009] Preferably, the extension frame is symmetrically distributed in a U-shape on both sides of the adapter body, the outer end of the slide plate is fixedly connected to a mounting frame, and the mounting frame is distributed in a cross shape, and the cooling fan is supported and installed inside the mounting frame.

[0010] Preferably, the positioning hole extends inward through the side end of the boss, an extension plate is fixedly connected to the outside of the mounting bracket, and the positioning post is movably connected to the outside of the extension plate.

[0011] Preferably, the adapter main body shell is fixedly connected with heat dissipation fins, and there are several heat dissipation fins, which are arranged in multiple parallel groups around the adapter main body shell.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes heat dissipation fins to form multiple heat dissipation channels on the adapter's outer casing, effectively increasing the heat exchange area and accelerating heat dissipation. Simultaneously, the synergistic effect of the heat-conducting liquid and heat pipes efficiently guides the heat generated inside the adapter to the outside and dissipates it, significantly improving heat dissipation efficiency. Furthermore, by controlling the activation of the cooling fan, airflow around the heat pipes can be driven, further enhancing their heat dissipation performance and achieving rapid localized cooling, thereby further improving the adapter's heat dissipation efficiency and effectively extending its service life. This design also effectively prevents external dust from entering the adapter through the heat dissipation holes or fan gaps, ensuring that the accuracy of the adapter's overload protection is not affected by dust. This invention also allows for easy adjustment of the cooling fan's position when the cooling fan's heat dissipation position needs to be adjusted. By pulling the positioning post outwards, its inner side moves out of the positioning hole, thus releasing the limiting position on the sliding plate. Subsequently, pushing the sliding plate along the inner wall of the extension frame's outer end allows for easy adjustment of the cooling fan's position. This design ensures flexibility in the cooling fan's installation position, enabling the cooling fan to adjust its heat dissipation position according to the usage environment. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is a partial structural schematic diagram of the present invention.

[0014] Reference numerals in the attached diagram: 1. Adapter body; 2. Inlet terminal; 3. Outlet terminal; 4. Heat sink fins; 5. Heat pipe; 6. Extension bracket; 7. Slide plate; 8. Mounting bracket; 9. Cooling fan; 10. Groove; 11. Boss; 12. Positioning hole; 13. Extension plate; 14. Positioning post; 15. Limiting ring; 16. Connecting spring. Detailed Implementation

[0015] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0016] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0017] Please see Figure 1 - Figure 3 This embodiment proposes an overload-prevention adapter, including an adapter body 1, which contains a power conversion circuit. The outer shell of the adapter body 1 is made of a material with excellent thermal conductivity. An inlet terminal 2 and an outlet terminal 3 are securely mounted at both ends of the adapter body 1, working together to enable power connection.

[0018] To improve heat dissipation performance, the outer shell of the adapter body 1 is welded or integrally molded with multiple heat dissipation fins 4. These heat dissipation fins 4 are made of metal and are distributed in parallel on the outer shell, creating multiple efficient heat dissipation channels on the outer shell of the adapter body 1. This design significantly increases the heat exchange area and effectively accelerates the heat dissipation process.

[0019] In addition, several heat pipes 5 are also bonded through the side of the adapter body 1. These heat pipes are symmetrically distributed on both sides of the adapter body 1 and extend into its interior. The heat pipes 5 are filled with a heat-conducting liquid. Through the synergistic effect of the heat-conducting liquid and the heat pipes 5, the heat inside the adapter body 1 is efficiently guided to the outside and dissipated.

[0020] On the outside of the adapter, U-shaped symmetrically distributed extension brackets 6 are glued on both sides of the adapter body 1. The inner wall of the outer end of the extension bracket 6 is movably connected to the slide plate 7, while the outer end of the slide plate 7 is glued with cross-shaped mounting brackets 8. A cooling fan 9 is mounted on the inner side of the mounting bracket 8, specifically for cooling the heat pipe 5. To ensure the sliding stability of the slide plate 7, a groove 10 is provided on the outer end of the extension bracket 6, and a corresponding boss 11 is provided on the outer end of the slide plate 7. The two are tightly fitted and movably connected to achieve precise sliding limit of the slide plate 7.

[0021] Furthermore, a positioning hole 12 is provided on the outer side of the extension frame 6, which extends inward through the side end of the boss 11. An extension plate 13 is welded or integrally formed on the outer side of the mounting frame 8, and a positioning post 14 is movably connected to the outer side of the extension plate 13. The inner side of the positioning post 14 is inserted into the inner wall of the positioning hole 12, and the stable positioning of the slide plate 7 is achieved through the cooperation between the positioning hole 12 and the positioning post 14. To enhance the elastic connection performance of the positioning post 14, a limiting ring 15 is bonded to its outer curved surface, and a connecting spring 16 is fixedly installed on the outer side of the limiting ring 15. The other end of the connecting spring 16 is fixedly installed on the inner side of the extension plate 13, thereby achieving elastic support and connection for the positioning post 14.

[0022] Please continue reading. Figure 1 - Figure 3 In this embodiment, during use, the heat dissipation fins 4 form multiple heat dissipation channels on the outer shell of the adapter body 1, effectively increasing the heat exchange area and accelerating heat dissipation. Simultaneously, the synergistic effect of the thermally conductive liquid and the heat pipe 5 efficiently guides the heat generated inside the adapter body 1 to the outside and dissipates it, significantly improving heat dissipation efficiency. Furthermore, by controlling the activation of the cooling fan 9, airflow can be driven at the outer end of the heat pipe 5, further enhancing the heat dissipation performance of the heat pipe 5 and achieving rapid localized cooling, thereby further improving the heat dissipation efficiency of the adapter body 1 and effectively extending its service life. At the same time, this design effectively prevents external dust from entering the adapter body 1 through the heat dissipation holes or fan gaps, ensuring that the accuracy of the adapter's overload protection is not affected by dust.

[0023] When it is necessary to adjust the cooling position of the cooling fan 9, pull the positioning post 14 outward to move its inner side out of the positioning hole 12, thereby releasing the limiting positioning of the slide plate 7. Then, push the slide plate 7 along the inner wall of the outer end of the extension frame 6 to easily adjust the position of the cooling fan 9. This design ensures the flexibility of the installation position of the cooling fan 9, allowing the cooling fan 9 to adjust its cooling position according to the usage environment.

[0024] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An overload-prevention adapter, comprising an adapter body, characterized in that, include: An external heat dissipation assembly is used to dissipate heat from the adapter body. The heat dissipation assembly includes at least one active heat dissipation unit and at least one passive heat dissipation unit. The adapter body shell is a closed structure, and the passive heat dissipation unit is thermally connected to the internal heat source of the adapter body, and conducts the heat inside the adapter body to the outside. The active heat dissipation unit is located outside the adapter body and provides forced air cooling for the passive heat dissipation unit.

2. The overload prevention adapter according to claim 1, characterized in that, The passive heat dissipation unit includes: at least one heat pipe, which is fixedly connected to the side end of the adapter body. The heat pipe is filled with a heat-conducting liquid to guide and dissipate the heat inside the adapter body to the outside. The active heat dissipation unit includes: an extension frame, a sliding plate, and a cooling fan disposed on the outside of the sliding plate. The extension frame is disposed on the outside of the adapter body, and the sliding plate is movably connected to the inner wall of the outer end of the extension frame. The cooling fan is used to dissipate heat from the heat pipe.

3. The overload prevention adapter according to claim 2, characterized in that, Also includes: The groove and the boss are slidably connected to the inner wall of the groove. The groove and the boss are respectively opened at the outer end of the extension frame and the slide plate, and are used to slide and limit the slide plate. The positioning hole and the positioning post are opened on the outer side of the extension frame. The inner side of the positioning post is inserted into the inner wall of the positioning hole, and is used to adjust and position the slide plate.

4. The overload prevention adapter according to claim 3, characterized in that, The outer curved surface of the positioning post is fixedly connected to a limiting ring, and a connecting spring is fixedly installed on the outer side of the limiting ring. The end of the connecting spring away from the limiting ring is fixedly installed on the inner side of the extension plate.

5. The overload prevention adapter according to claim 4, characterized in that, The extension frame is symmetrically distributed in a U-shape on both sides of the adapter body. The outer end of the slide plate is fixedly connected to a mounting bracket, which is distributed in a cross shape. The cooling fan is supported and installed inside the mounting bracket.

6. The overload prevention adapter according to claim 5, characterized in that, The positioning hole extends inward through the side end of the boss, and an extension plate is fixedly connected to the outside of the mounting bracket. The positioning post is movably connected to the outside of the extension plate.

7. The overload prevention adapter according to claim 1, characterized in that, The adapter's main body shell is fixedly connected to a heat dissipation fin, and there are several heat dissipation fins arranged in multiple parallel groups around the adapter's main body shell.

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