Power adapter

Abstract

The utility model discloses a power adapter, which relates to the technical field of power adapters, and comprises a shell and a circuit board assembly, the shell is provided with a shell body and an upper cover, the shell body and the upper cover are enclosed to form a storage space, and the circuit board assembly is positioned in the storage space; an opening is formed in the top of the shell, one end of the upper cover is hinged to the top of the shell through a pin shaft so that the upper cover can rotate relative to the shell to achieve opening and closing of the shell, and a locking structure is jointly arranged between the other end of the upper cover and the top of the shell so as to achieve stable connection of the upper cover and the shell in a closed state; a cooling fan is further arranged in the containing space, the cooling fan is located at the front end of the shell and installed on the inner wall of the front end of the shell, a first ventilation opening and a second ventilation opening are correspondingly formed in the front end and the rear end of the shell respectively, and a filter screen corresponding to the cooling fan is installed on the outer side of the first ventilation opening. And the heat dissipation efficiency is obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of power adapter technology, specifically to a power adapter. Background Technology

[0002] With the rapid development of electronic technology, various electronic devices have been widely used in people's daily lives and work. As an indispensable power supply component for the stable operation of electronic devices, the power adapter is becoming increasingly important.

[0003] In the past, power adapter designs primarily focused on fulfilling basic voltage conversion functions, with relatively insufficient consideration given to structural design and heat dissipation. Regarding the casing structure, common construction methods were quite simple, often employing fixed encapsulation or simple assembly, lacking convenient and stable opening and closing designs. This made repairing, debugging, or testing the internal circuit board components of the power adapter extremely inconvenient, and frequent disassembly could even damage the casing, affecting its protective performance for internal components. It failed to provide reliable physical protection for delicate circuit board components, making them susceptible to displacement, loosening, or damage from external impacts, collisions, or even minor vibrations during daily use, thus reducing the overall reliability and lifespan of the power adapter.

[0004] From a heat dissipation perspective, early power adapters mostly relied on natural convection cooling, meaning heat was naturally dissipated from the component surfaces into the surrounding environment. However, as the performance of electronic devices continues to improve, the power density of power adapters also increases, making traditional natural heat dissipation methods ineffective in dissipating the generated heat. Excessive temperatures not only accelerate the aging of electronic components, such as causing performance degradation of semiconductor devices on circuit boards and solder joint cracking, but also significantly reduce power conversion efficiency, increase energy consumption, and may even trigger frequent activation of overheat protection mechanisms, causing electronic devices to malfunction and severely impacting user experience and device stability.

[0005] Therefore, it is necessary to propose an improved technical solution to address the above problems. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0007] A power adapter includes a housing and a circuit board assembly, the housing having a casing and a top cover, the casing and the top cover enclosing a storage space, and the circuit board assembly being located within the storage space;

[0008] The top of the housing is provided with an opening, and one end of the top cover is hinged to the top of the housing by a pin, so that the top cover can rotate relative to the housing to realize the opening and closing of the housing. The other end of the top cover and the top of the housing are provided with a locking structure to realize a stable connection between the top cover and the housing in the closed state.

[0009] The storage space is also equipped with a cooling fan. The cooling fan is located at the front end of the housing and is installed on the inner wall of the front end of the housing. The front end and the rear end of the housing are respectively provided with a first ventilation port and a second ventilation port. A filter screen corresponding to the cooling fan is installed on the outside of the first ventilation port. The first ventilation port, the interior of the storage space, and the second ventilation port form an airflow channel.

[0010] As a further embodiment of this utility model: the locking structure includes a first connecting structure, the first connecting structure including two first connecting posts, two connecting holes, and two locking elements;

[0011] The two first connecting posts are integrally formed and extend to both sides of the lower end of the upper cover. Each first connecting post has a threaded groove along its axial direction to engage with the locking member. The two connecting holes are respectively opened on both sides of the top of the housing and corresponding to the positions of the threaded grooves.

[0012] As a further embodiment of this utility model: the locking structure further includes a second connecting structure, the second connecting structure including a second connecting post integrally formed extending to the middle position of the lower end of the upper cover, and a slot opened at the middle position of the top of the housing, wherein the lower end of the second connecting post is provided with a buckle that engages with the slot.

[0013] As a further embodiment of this utility model: two L-shaped brackets are fixedly provided on the inner wall of the front end of the housing. The two L-shaped brackets are arranged at relative intervals and form a mounting groove corresponding to the cooling fan. The cooling fan can be slidably fitted into the mounting groove.

[0014] The filter screen is fastened to the cooling fan screws through the housing.

[0015] As a further embodiment of this utility model, a third ventilation opening communicating with the storage space is also provided on the side of the housing.

[0016] As a further embodiment of this utility model: the side of the housing is provided with anti-slip texture.

[0017] As a further embodiment of this utility model: the front end and the rear end of the shell are respectively formed with connecting members extending outward, and elongated holes are formed along the end face of the connecting members.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1) The opening and closing design of the casing greatly improves the convenience of maintenance operations on the internal circuit board components of the power adapter, reduces the possibility of damage to the casing due to improper maintenance operations, and provides reliable physical protection for internal components in daily use, thereby improving the overall reliability and service life of the power adapter.

[0020] 2) Compared to traditional methods that rely on natural convection for heat dissipation, the addition of a cooling fan significantly improves heat dissipation efficiency. By forcing airflow, the heat generated inside the power adapter due to power consumption can be dissipated in a timely and effective manner. This avoids problems such as accelerated aging of electronic components, reduced power conversion efficiency, increased energy consumption, and frequent activation of overheat protection mechanisms caused by excessively high temperatures. It ensures that the power adapter can operate stably at high power, guarantees the normal operation of connected electronic devices, and improves user experience and device stability.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram from one perspective of the present invention;

[0024] Figure 2 This is a structural schematic diagram from another perspective of this utility model;

[0025] Figure 3 This is an exploded structural diagram of the present invention;

[0026] Figure 4 This is a schematic diagram of the internal structure of the casing of this utility model.

[0027] The reference numerals and names in the figure are as follows:

[0028] 1. Outer shell; 2. Circuit board assembly; 3. Housing; 4. Top cover; 5. Storage space; 6. Cooling fan; 7. First vent; 8. Second vent; 9. Filter screen; 10. First connecting post; 11. Connecting hole; 12. Locking component; 13. Second connecting post; 14. Slot; 15. Buckle; 16. L-shaped bracket; 17. Third vent; 18. Anti-slip texture; 19. Connector; 20. Elongated hole; 21. Threaded groove. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-4 In this embodiment of the utility model, a power adapter includes a housing 1 and a circuit board assembly 2. The housing 1 has a shell 3 and a top cover 4. The shell 3 and the top cover 4 surround and form a storage space 5. The circuit board assembly 2 is located in the storage space 5.

[0031] The top of the housing 3 is provided with an opening, and one end of the upper cover 4 is hinged to the top of the housing 3 by a pin, so that the upper cover 4 can rotate relative to the housing 3 to realize the opening and closing of the outer shell 1. The other end of the upper cover 4 and the top of the housing 3 are provided with a locking structure to realize the stable connection between the upper cover 4 and the housing 3 in the closed state.

[0032] The storage space 5 is also equipped with a cooling fan 6. The cooling fan 6 is located at the front end of the housing 3 and is installed on the inner wall of the front end of the housing 3. The front end and the rear end of the housing 3 are respectively provided with a first ventilation port 7 and a second ventilation port 8. A filter screen 9 corresponding to the cooling fan 6 is installed on the outside of the first ventilation port 7. The first ventilation port 7, the interior of the storage space 5 and the second ventilation port 8 form an airflow channel.

[0033] In this utility model, the top opening of the housing 3 and the top cover 4 are hinged to the housing 3 by a pin, which imitates the principle of a common rotating connection structure. This allows the top cover 4 to rotate flexibly around the pin, thereby achieving convenient opening and closing actions and making it easy for operators to access the internal circuit board assembly 2. The locking structure set on the top of the top cover 4 and the housing 3 utilizes the stability principle of connection methods such as buckles 15, locks, or bolts in mechanical structures to ensure that the top cover 4 and the housing 3 are tightly connected in the closed state, forming a complete protective cavity that effectively resists external impacts and vibrations and protects the internal components from damage.

[0034] Based on aerodynamic principles, the cooling fan 6 uses a motor to drive the blades to rotate at high speed, creating a low-pressure zone in front of the fan. Air behind the fan is drawn in and pushed forward under the pressure difference, thus generating a continuous airflow. A first vent 7 is set at the front of the power adapter housing 3 as an air inlet, and a second vent 8 is set at the rear as an air outlet. Together with the airflow driven by the cooling fan 6, a complete air circulation channel is formed, allowing hot air in the storage space 5 to be continuously discharged and cool air from the outside to be replenished, achieving efficient heat dissipation. The filter 9 on the outside of the first vent 7 uses the filtration principle of the filter medium. Its fine mesh can block dust, impurities and other tiny particles from entering, while allowing air to pass freely, ensuring that the normal ventilation of the heat dissipation system is not affected and maintaining the cleanliness of the internal electrical environment.

[0035] In summary, the opening and closing design of the outer casing 1 greatly improves the convenience of maintenance operations on the internal circuit board assembly 2 of the power adapter, reduces the possibility of damage to the outer casing 1 due to improper maintenance operations, and provides reliable physical protection for internal components during daily use, thereby improving the overall reliability and service life of the power adapter. Compared with the traditional method of relying on natural convection for heat dissipation, the addition of the cooling fan 6 significantly improves heat dissipation efficiency. By forcing airflow, the heat generated by power consumption inside the power adapter can be dissipated in a timely and effective manner, avoiding problems such as accelerated aging of electronic components, reduced power conversion efficiency, increased energy consumption, and frequent activation of overheat protection mechanisms caused by excessive temperature. This ensures that the power adapter can operate stably at high power, guarantees the normal operation of connected electronic devices, and improves user experience and device stability.

[0036] In this embodiment of the present invention, the locking structure includes a first connecting structure, which includes two first connecting posts 10, two connecting holes 11, and two locking members 12.

[0037] The two first connecting posts 10 are integrally formed and extend to both sides of the lower end of the upper cover 4. Each first connecting post 10 has a threaded groove 21 along its axial direction that is threaded to engage with the locking member 12. The two connecting holes 11 are respectively opened on both sides of the top of the housing 3 and correspond to the positions of the threaded groove 21.

[0038] The locking structure also includes a second connecting structure, which includes a second connecting post 13 integrally formed and extending to the middle position of the lower end of the upper cover 4, and a slot 14 opened at the middle position of the top of the housing 3. The lower end of the second connecting post 13 is provided with a buckle 15 that engages with the slot 14.

[0039] Two first connecting posts 10 are integrally formed on both sides of the lower end of the upper cover 4. This integral design enhances the structural integrity and stability of the connecting posts and the upper cover 4, enabling them to better withstand external forces. The threaded groove 21 opened along the axial direction of the first connecting post 10 is threadedly connected to the locking member 12. When the locking member 12 is screwed into the threaded groove 21 and passes through the corresponding connecting hole 11 on the housing 3, the interaction force between the threads can tightly fix the upper cover 4 and the housing 3 together, achieving a stable connection. This threaded connection method has high reliability and adjustability. The tightening degree of the locking member 12 can be adjusted as needed to ensure that the connection between the upper cover 4 and the housing 3 is moderate.

[0040] The second connecting post 13 is integrally formed at the lower middle position of the upper cover 4, which also ensures the stability of the structure. The buckle 15 at its lower end engages with the slot 14 at the middle position of the top of the housing 3. The shape and size of the buckle 15 and the slot 14 match each other. When the buckle 15 is inserted into the slot 14, it can form a mechanical limit to prevent the upper cover 4 from shifting in the horizontal direction, which further enhances the stability of the connection between the upper cover 4 and the housing 3. This snapping method is simple and effective, and can quickly achieve the alignment and connection between the upper cover 4 and the housing 3. At the same time, when it is necessary to open the upper cover 4, it is only necessary to apply appropriate external force to make the buckle 15 disengage from the slot 14, which is convenient to operate.

[0041] The synergistic effect of the first and second connecting structures fixes the top cover 4 and the housing 3 from multiple angles and positions, effectively preventing the top cover 4 from being accidentally opened or displaced due to external forces during use. This greatly improves the overall stability of the housing 1, provides more reliable protection for the internal circuit board assembly 2, reduces the risk of damage to internal components due to loosening of the housing 1, and thus extends the service life of the power adapter.

[0042] In this embodiment of the present invention, two L-shaped brackets 16 are fixedly provided on the inner wall of the front end of the housing 3. The two L-shaped brackets 16 are arranged at a relative interval and form a mounting groove corresponding to the cooling fan 6. The cooling fan 6 can be slidably fitted into the mounting groove.

[0043] The filter screen 9 is fastened to the cooling fan 6 by screws through the housing 3.

[0044] Two L-shaped brackets 16 spaced apart are provided on the inner wall of the front end of the housing 3. The stability and support of the L-shaped structure are used to form a mounting groove of a specific size. The shape and size of the mounting groove match the shape of the cooling fan 6, so that the cooling fan 6 can be precisely fitted into the mounting groove by sliding. This design utilizes the embedded fit principle in mechanical structure. The L-shaped brackets 16 limit the cooling fan 6 in the horizontal and vertical directions to ensure that the cooling fan 6 will not be displaced during operation, thus ensuring the stability and reliability of the heat dissipation system.

[0045] The filter screen 9 is fastened to the cooling fan 6 by screws and operated through the housing 3. This is based on the threaded fastening principle in mechanical connections. Corresponding holes are reserved on the housing 3 so that the screws can pass through the housing 3 and connect with the threaded holes on the cooling fan 6, firmly fixing the filter screen 9 to the outside of the cooling fan 6. This ensures that the filter screen 9 will not loosen or shift due to airflow impact or vibration when the cooling fan 6 is running, thus guaranteeing the durability and stability of the dustproof effect.

[0046] In one embodiment of this utility model, the side of the housing 3 is further provided with a third ventilation opening 17 that communicates with the storage space 5.

[0047] The third vent 17, which connects to the storage space 5, is opened on the side of the housing 3. This is based on the principle of air flow and aims to further optimize the air circulation path inside the power adapter. By increasing the number and position of the vents, air can enter and exit the storage space 5 from multiple directions, forming a more complex airflow channel, thereby improving heat dissipation efficiency.

[0048] In one embodiment of this utility model, the side of the housing 3 is provided with anti-slip texture 18.

[0049] Anti-slip texture 18 is provided on the side of the housing 3. It utilizes the principle of tribology to increase the friction between the hand and the power adapter housing 1 by creating tiny bumps, grooves or texture patterns on the surface. These textures can be regular stripes, dotted bumps or other geometric shapes. When the user holds the power adapter, the anti-slip texture 18 can effectively prevent it from slipping out of the hand, improving the safety and convenience of use. Especially in situations where the power adapter needs to be frequently plugged in or unplugged or moved, it can better meet the user's operational needs.

[0050] In this embodiment of the utility model, the front end and rear end of the housing 3 are respectively formed with connecting members 19 extending outward, and an elongated hole 20 is provided along the end face of the connecting member 19.

[0051] Connector 19 extends outward from the front and rear ends of housing 3. This integrated molding method ensures the structural strength and integrity of connector 19 and housing 3. An elongated hole 20 is opened on the end face of connector 19, which utilizes the positioning and installation principle in mechanical structure. Compared with ordinary round hole, the design of elongated hole 20 provides a certain adjustment range, so that when connecting with other equipment or components, the position can be adjusted appropriately in the length direction of elongated hole 20 according to the actual installation requirements, in order to compensate for the connection position deviation caused by manufacturing tolerance, installation environment changes or other factors, thereby ensuring that the power adapter can be accurately and stably installed with other components and adapt to different installation scenarios and fixing methods.

[0052] 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 exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A power adapter, characterized in that, The device includes a housing and a circuit board assembly. The housing has a shell and a top cover, which enclose a storage space, and the circuit board assembly is located within the storage space. The top of the housing is provided with an opening, and one end of the top cover is hinged to the top of the housing by a pin, so that the top cover can rotate relative to the housing to realize the opening and closing of the housing. The other end of the top cover and the top of the housing are provided with a locking structure to realize a stable connection between the top cover and the housing in the closed state. The storage space is also equipped with a cooling fan. The cooling fan is located at the front end of the housing and is installed on the inner wall of the front end of the housing. The front end and the rear end of the housing are respectively provided with a first ventilation port and a second ventilation port. A filter screen corresponding to the cooling fan is installed on the outside of the first ventilation port. The first ventilation port, the interior of the storage space, and the second ventilation port form an airflow channel.

2. A power adapter according to claim 1, characterized in that, The locking structure includes a first connecting structure, which includes two first connecting posts, two connecting holes, and two locking elements. The two first connecting posts are integrally formed and extend to both sides of the lower end of the upper cover. Each first connecting post has a threaded groove along its axial direction to engage with the locking member. The two connecting holes are respectively opened on both sides of the top of the housing and corresponding to the positions of the threaded grooves.

3. A power adapter according to claim 2, characterized in that, The locking structure also includes a second connecting structure, which includes a second connecting post integrally formed extending to the middle of the lower end of the upper cover and a slot opened at the middle of the top of the housing, wherein the lower end of the second connecting post is provided with a buckle that engages with the slot.

4. A power adapter according to claim 1, characterized in that, Two L-shaped brackets are fixedly provided on the inner wall of the front end of the housing. The two L-shaped brackets are arranged at a relative interval and form a mounting groove corresponding to the cooling fan. The cooling fan can be slidably fitted into the mounting groove. The filter screen is fastened to the cooling fan screws through the housing.

5. A power adapter according to claim 1, characterized in that, The side of the housing is also provided with a third ventilation opening that connects to the storage space.

6. A power adapter according to claim 1, characterized in that, The sides of the housing are provided with anti-slip texture.

7. A power adapter according to claim 1, characterized in that, Both the front and rear ends of the housing have connecting members extending outwards, and elongated holes are formed along the end faces of the connecting members.

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