Over-temperature protection device of power adapter

By introducing a combination of heat dissipation mechanism and temperature sensor into the power adapter, the problem of heat accumulation in the power adapter under high load is solved, and fast-response over-temperature protection is achieved, ensuring the safety and stability of the equipment.

CN224234034UActive Publication Date: 2026-05-12SHENZHEN ZHONGDIAN PANDA EXHIBITION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN ZHONGDIAN PANDA EXHIBITION TECH CO LTD
Filing Date
2025-05-15
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing power adapters accumulate heat when operating under high loads, leading to damage to internal components. Furthermore, existing protection schemes have slow response times and cannot provide timely protection.

Method used

An over-temperature protection device for a power adapter was designed, comprising a heat dissipation mechanism, a temperature sensor, and a cooling fan. It monitors the temperature in real time and responds quickly to dissipate heat and exhaust air when the temperature exceeds the critical temperature. Combined with the stable connection structure of the plug and slot, it ensures the stable installation and rapid response of the heat dissipation mechanism.

Benefits of technology

It achieves timely heat dissipation protection for the power adapter under high temperature conditions, avoids damage to internal components, improves response speed and connection stability, and ensures safe and reliable operation of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of power adapters, and discloses a power adapter over-temperature protection device, which comprises a power adapter body, two sides of the power adapter body are fixedly connected with mounting boxes, the mounting boxes are internally provided with mounting grooves, the mounting grooves are internally connected with heat dissipation mechanisms in a sliding manner, and the heat dissipation mechanisms are connected with the power adapter body in a sliding manner. And a heat dissipation fan is mounted in the heat dissipation mechanism, and adjusting grooves are formed in the two ends of the mounting box correspondingly. According to the over-temperature protection device for the power adapter, a worker aligns a heat dissipation mechanism to the interior of a mounting groove for insertion and pulls an adjusting block towards the exterior of an adjusting groove, so that the adjusting block drives an insertion block to move and drives the insertion block to be inserted into an insertion groove, and the position of the heat dissipation mechanism is fixed; the temperature in the power adapter body is monitored in real time through the temperature sensor, and the heat dissipation fan quickly responds to dissipate heat and exhaust air in the power adapter body when the temperature exceeds the critical temperature.
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Description

Technical Field

[0001] This utility model relates to the field of power adapter technology, and in particular to a power adapter over-temperature protection device. Background Technology

[0002] Existing power adapters tend to generate a lot of heat when working under high load for extended periods. If the temperature is too high, it may damage internal components or even cause safety hazards. Therefore, many adapters are designed with over-temperature protection devices.

[0003] Some power adapters, due to their compact structure or enclosed casing design, make it difficult to directly install efficient heat dissipation mechanisms, resulting in heat accumulation problems that are difficult to completely solve. In addition, some protection schemes rely solely on software temperature control or simple thermistors, which have slow response speeds and cannot provide timely protection when the temperature rises sharply. Utility Model Content

[0004] The technical problem to be solved by this utility model is that some protection schemes in the prior art rely only on software temperature control or simple thermistors, which have the disadvantage of slow response speed and inability to provide timely protection when the temperature rises suddenly. To this end, we propose a power adapter over-temperature protection device.

[0005] To achieve the above objectives, this application adopts the following technical solution: a power adapter over-temperature protection device, comprising a power adapter body, mounting boxes fixedly connected to both sides of the power adapter body, mounting slots provided inside the mounting boxes, a heat dissipation mechanism slidably connected inside the mounting slots, a cooling fan installed inside the heat dissipation mechanism, adjustment slots provided at both ends of the mounting boxes, adjustment blocks slidably connected inside the adjustment slots, a through slot provided inside the adjustment slots on the side near the heat dissipation mechanism, an insert fixedly connected to the side of the adjustment block near the heat dissipation mechanism, a straight groove provided on the side of the heat dissipation mechanism near the adjustment block, and a slot provided at one end of the straight groove.

[0006] Preferably, the size of the insert is adapted to the size of the slot, and the surface of the insert is inserted into the interior of the slot.

[0007] Preferably, both ends of the adjustment groove are provided with sliding grooves, and both ends of the adjustment block are fixedly connected with sliders, the surface of the sliders being slidably connected to the inside of the sliding grooves.

[0008] Preferably, a storage spring is fixedly connected to the side of the adjusting block near the inside of the adjusting groove, and the side of the storage spring away from the adjusting block is fixedly connected to the inside of the adjusting groove.

[0009] Preferably, a temperature sensor is installed on the side of the cooling fan closest to the power adapter body.

[0010] Preferably, guide grooves are provided at both ends of the mounting groove, and guide blocks are fixedly connected to both ends of the heat dissipation mechanism. The surface of the guide block is slidably connected to the inside of the guide groove.

[0011] Preferably, two return springs are fixedly connected to the bottom of the mounting groove, and a top plate is fixedly connected to the top of the return springs.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, the operator inserts the heat dissipation mechanism into the mounting slot and pulls the adjusting block outwards to move the insert block into the slot, thus fixing the position of the heat dissipation mechanism. The temperature sensor monitors the internal temperature of the power adapter body in real time. When the critical temperature is exceeded, the cooling fan responds quickly to dissipate heat and exhaust air from the inside of the power adapter body. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a partial cross-sectional view of the mounting box of this utility model;

[0016] Figure 3 This is a partial cross-sectional view of the present invention.

[0017] Figure 4 This is a schematic diagram of the internal structure of the adjusting groove of this utility model;

[0018] Figure 5 This is a schematic diagram of the internal structure of the mounting slot of this utility model.

[0019] Legend: 1. Power adapter body; 2. Mounting box; 3. Mounting slot; 4. Heat dissipation mechanism; 5. Cooling fan; 6. Adjustment slot; 7. Adjustment block; 8. Insert block; 9. Through slot; 10. Straight slot; 11. Slot; 12. Slide; 13. Slider; 14. Storage spring; 15. Temperature sensor; 16. Guide slot; 17. Guide block; 18. Return spring; 19. Top plate. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0021] Reference Figure 1 - Figure 5As shown, this utility model provides a technical solution: a power adapter over-temperature protection device, including a power adapter body 1, with mounting boxes 2 fixedly connected to both sides of the power adapter body 1. The mounting boxes 2 have mounting grooves 3 inside, and a heat dissipation mechanism 4 is slidably connected inside the mounting grooves 3. A cooling fan 5 is installed inside the heat dissipation mechanism 4. Adjustment grooves 6 are provided at both ends of the mounting boxes 2, and adjustment blocks 7 are slidably connected inside the adjustment grooves 6. A through groove 9 is provided on the side of the adjustment groove 6 near the heat dissipation mechanism 4. An insert block 8 is fixedly connected to the side of the adjustment block 7 near the heat dissipation mechanism 4. A straight groove 10 is provided on one side, and a slot 11 is provided at one end inside the slot 11. A temperature sensor 15 is installed on the side of the cooling fan 5 near the power adapter body 1. The operator inserts the cooling mechanism 4 into the mounting slot 3 and pulls the adjusting block 7 outwards to the adjusting slot 6, so that the adjusting block 7 moves the plug 8 and inserts the plug 8 into the slot 11 to fix the position of the cooling mechanism 4. The temperature sensor 15 monitors the temperature inside the power adapter body 1 in real time. When the critical temperature is exceeded, the cooling fan 5 responds quickly to dissipate heat and exhaust air inside the power adapter body 1.

[0022] Reference Figure 4 As shown in this embodiment: the size of the plug 8 is adapted to the size of the slot 11, and the surface of the plug 8 is inserted into the interior of the slot 11. By adapting the size of the plug 8 to the size of the slot 11, the plug 8 can be stably inserted into the interior of the slot 11, thereby effectively improving the connection stability between the heat dissipation mechanism 4 and the adjustment block 7.

[0023] Reference Figure 4 As shown in this embodiment: both ends of the adjusting groove 6 are provided with sliding grooves 12, and both ends of the adjusting block 7 are fixedly connected with sliders 13. The surface of the sliders 13 is slidably connected to the inside of the sliding grooves 12. When the operator moves the adjusting block 7, the adjusting block 7 drives the sliders 13 to slide inside the sliding grooves 12. Through the above settings, the adjusting block 7 can be made more stable when moving, avoiding the shaking or deviation of the adjusting block 7 during the movement. At the same time, the sliders 13 can also play a limiting role during the sliding inside the sliding grooves 12, further ensuring the stability of the movement of the adjusting block 7.

[0024] Reference Figure 4As shown in this embodiment: a storage spring 14 is fixedly connected to the side of the adjusting block 7 near the inside of the adjusting groove 6, and the side of the storage spring 14 away from the adjusting block 7 is fixedly connected to the inside of the adjusting groove 6. When the operator pushes the adjusting block 7 into the adjusting groove 6, the adjusting block 7 compresses the storage spring 14 to store force, and drives the insert 8 to release the limit between itself and the slot 11, so that the operator can take the heat dissipation mechanism 4. When the operator needs to install the heat dissipation mechanism 4, he aligns the insert 8 with the slot 11 and releases the adjusting block 7. Under the action of the rebound force of the storage spring 14, the insert 8 can be quickly inserted into the slot 11 to limit and fix the heat dissipation mechanism 4.

[0025] Reference Figure 5 As shown in this embodiment: guide grooves 16 are provided at both ends of the mounting groove 3, and guide blocks 17 are fixedly connected to both ends of the heat dissipation mechanism 4. The surface of the guide block 17 is slidably connected to the inside of the guide groove 16. When the operator moves the heat dissipation mechanism 4, the heat dissipation mechanism 4 drives the guide block 17 to slide inside the guide groove 16. Through the above settings, the movement of the heat dissipation mechanism 4 can be made more stable, avoiding the shaking of the heat dissipation mechanism 4 during the movement, and improving the overall stability.

[0026] Reference Figure 5 As shown in this embodiment: two return springs 18 are fixedly connected to the bottom of the mounting slot 3, and a top plate 19 is fixedly connected to the top of the return springs 18. When the worker inserts the heat dissipation mechanism 4 into the mounting slot 3, the heat dissipation mechanism 4 pushes the top plate 19 to compress and store the return springs 18. When the worker releases the limit of the heat dissipation mechanism 4, the top plate 19 is quickly pushed under the action of the return spring 18, and the heat dissipation mechanism 4 is pushed to move to the outside of the mounting slot 3 so that the worker can take out the heat dissipation mechanism 4.

[0027] Working Principle: The operator inserts the heat dissipation mechanism 4 into the mounting slot 3 and pulls the adjusting block 7 outwards into the adjusting slot 6. This causes the adjusting block 7 to move the insert block 8, inserting it into the slot 11 and fixing the position of the heat dissipation mechanism 4. The temperature sensor 15 monitors the internal temperature of the power adapter body 1 in real time. If the critical temperature is exceeded, the cooling fan 5 responds quickly, dissipating and exhausting air from the inside of the power adapter body 1. The size of the insert block 8 is matched to the size of the slot 11, ensuring stable insertion and effectively improving the connection stability between the heat dissipation mechanism 4 and the adjusting block 7. When the operator moves the adjusting block 7, it causes the slider 13 to slide within the sliding groove 12. This design ensures greater stability during movement, preventing wobbling or displacement. Simultaneously, the slider 13 also acts as a limiter during its movement within the sliding groove 12, further guaranteeing the stability of the adjusting block 7's movement. When the adjusting block 7 is pushed inside the slot 6, the adjusting block 7 compresses the storage spring 14 to store force, and drives the insert block 8 to release the limit between itself and the slot 11, so that the worker can pick up the heat dissipation mechanism 4. When the worker needs to install the heat dissipation mechanism 4, the insert block 8 is aligned with the slot 11 and the adjusting block 7 is released. Under the action of the rebound force of the storage spring 14, the insert block 8 can be quickly inserted into the slot 11 to limit and fix the heat dissipation mechanism 4. When the worker moves the heat dissipation mechanism 4, the heat dissipation mechanism 4 drives the guide block 17 in the guide groove 16. The heat dissipation mechanism 4 slides inside the mounting slot 3. With the above settings, the movement of the heat dissipation mechanism 4 can be made more stable, avoiding shaking during the movement and improving the overall stability. When the worker inserts the heat dissipation mechanism 4 into the mounting slot 3, the heat dissipation mechanism 4 pushes the top plate 19 to compress and store the return spring 18. When the worker releases the limit of the heat dissipation mechanism 4, the top plate 19 is quickly pushed under the action of the return spring 18, and the heat dissipation mechanism 4 is pushed to the outside of the mounting slot 3 so that the worker can take out the heat dissipation mechanism 4.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A power adapter over-temperature protection device, comprising a power adapter body (1), characterized in that: The power adapter body (1) is fixedly connected to both sides of the mounting box (2). The mounting box (2) has a mounting groove (3) inside. The mounting groove (3) is slidably connected to the heat dissipation mechanism (4). The heat dissipation mechanism (4) is equipped with a cooling fan (5). The mounting box (2) has an adjustment groove (6) at both ends. The adjustment groove (6) is slidably connected to the adjustment block (7). The adjustment groove (6) has a through groove (9) on the side near the heat dissipation mechanism (4). The adjustment block (7) is fixedly connected to the side near the heat dissipation mechanism (4). The heat dissipation mechanism (4) has a straight groove (10) on the side near the adjustment block (7). The straight groove (10) has a slot (11) at one end.

2. The power adapter over-temperature protection device according to claim 1, characterized in that: The size of the insert (8) is adapted to the size of the slot (11), and the surface of the insert (8) is inserted into the interior of the slot (11).

3. The power adapter over-temperature protection device according to claim 1, characterized in that: The adjustment groove (6) has sliding grooves (12) at both ends, and the adjustment block (7) has sliders (13) fixedly connected to both ends. The surface of the slider (13) is slidably connected to the inside of the sliding groove (12).

4. The power adapter over-temperature protection device according to claim 1, characterized in that: A storage spring (14) is fixedly connected to the side of the adjusting block (7) near the inside of the adjusting groove (6), and the side of the storage spring (14) away from the adjusting block (7) is fixedly connected to the inside of the adjusting groove (6).

5. The power adapter over-temperature protection device according to claim 1, characterized in that: A temperature sensor (15) is installed on the side of the cooling fan (5) near the power adapter body (1).

6. The power adapter over-temperature protection device according to claim 1, characterized in that: The mounting groove (3) has guide grooves (16) at both ends, and the heat dissipation mechanism (4) has guide blocks (17) fixedly connected at both ends. The surface of the guide block (17) is slidably connected to the interior of the guide groove (16).

7. The power adapter over-temperature protection device according to claim 1, characterized in that: Two return springs (18) are fixedly connected to the bottom of the mounting groove (3), and a top plate (19) is fixedly connected to the top of the return springs (18).