Easily assembled and disassembled plastic shell for power adapter

Through innovative design of the base, housing, card plate, and sliding components, the problems of cumbersome disassembly and poor sealing of traditional power adapters have been solved, achieving easy disassembly and assembly, stable structure, and excellent sealing performance, thereby improving the user experience and lifespan of the equipment.

CN224288678UActive Publication Date: 2026-05-26DONGGUAN JINYUAN ELECTRONIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN JINYUAN ELECTRONIC CO LTD
Filing Date
2025-04-28
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional power adapters are cumbersome to disassemble and repair, and their internal structure is easily damaged. Furthermore, it is difficult to restore their sealing state after disassembly, which affects their waterproof and dustproof performance.

Method used

The design incorporates a base, outer shell, locking plate, sliding plate, and sliding components. The combination of a sliding cylinder and a tension spring enables easy engagement and disengagement between the outer shell and the base. The structure, combined with sealing gaskets and heat dissipation grooves, ensures both sealing and heat dissipation requirements.

Benefits of technology

It simplifies the disassembly and assembly process, improves structural stability and sealing performance, ensures the safety and service life of the equipment, and provides a convenient operating experience and good heat dissipation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of electronic products, in particular to a plastic shell easy to disassemble and assemble for a power adapter. The plastic shell comprises a base, a shell body, a sealing washer, a clamping plate, a sliding plate and a sliding assembly, a plug is installed on one side of the base, a mainboard is installed in the base, the shell body is inserted into the other side of the base, an output connector is installed on one side of the shell body, and the sealing washer is installed on the inner wall of the end, close to the base, of the shell body. Clamping plates are symmetrically installed in the base, and sliding plates corresponding to the clamping plates are symmetrically arranged in the outer shell. According to the plastic shell easy to disassemble and assemble for the power adapter, through the design of the clamping plate and the sliding plate and the combination of the sliding assembly, clamping connection and unlocking between the shell body and the base can be easily achieved, tools or violent disassembly are not needed, the disassembly and assembly process is greatly simplified, and daily maintenance and internal assembly replacement by a user are facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of electronic products, and in particular to an easy-to-disassemble plastic housing for a power adapter. Background Technology

[0002] Power adapters, as a type of power conversion device, are widely used in various electronic devices. They play a crucial role in adapting power supplies of different voltage or current standards to specific devices. With the development of technology, the types and number of electronic devices are constantly increasing, and the demand for power adapters is also rising. Whether in the home, office or industrial environment, power adapters play an indispensable role in ensuring the stable operation of various electronic devices.

[0003] Traditional power adapters mostly use ultrasonic welding technology. Ultrasonic welding is a technique that uses high-frequency vibration energy to melt and join two plastic materials together. However, ultrasonically welded power adapters have significant shortcomings in terms of disassembly and maintenance. Because the welding process makes the outer casing components tightly joined, disassembly and maintenance require the use of tools to knock or pry them open. This disassembly method is not only cumbersome, but if the force is not controlled properly, it is easy to damage the internal structure or outer casing of the power adapter, causing the equipment to malfunction. In addition, after disassembly, the power adapter is often difficult to restore to its original sealed state, thus affecting its waterproof and dustproof performance.

[0004] Therefore, it is necessary to provide a new power adapter with an easily detachable plastic housing to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an easy-to-disassemble plastic housing for a power adapter.

[0006] The power adapter with an easy-to-disassemble plastic housing provided by this utility model includes: a base, a housing body, a sealing gasket, a locking plate, a sliding plate, and a sliding assembly. A plug is installed on one side of the base, a main board is installed inside the base, and the housing body is inserted into the other side of the base. An output connector is installed on one side of the housing body. A sealing gasket is installed on the inner wall of the end of the housing body near the base. Locking plates are symmetrically installed inside the base. Sliding plates corresponding to the locking plates are symmetrically arranged inside the housing body. A sliding assembly is installed between the housing body and the sliding plates. The sliding assembly drives the sliding plates to move and engage with the corresponding locking plates.

[0007] Preferably, the sliding assembly includes a slide cylinder and a tension spring. The slide cylinder is symmetrically fixedly connected inside the outer shell. A square groove is opened inside the end of the slide cylinder near the base, and a round groove is opened inside the end of the slide cylinder away from the base. The inner wall of the square groove is slidably connected to the outer wall of the slide plate. A tension spring is fixedly connected to the inner wall of each round groove, and one end of the tension spring is fixedly connected to the corresponding slide plate.

[0008] Preferably, both sides of the outer casing are provided with sliding grooves, and the inner walls of the sliding grooves are slidably connected with sliding covers. The side of the sliding cylinder near the outer casing is provided with a through groove that passes through the sliding groove. The bottom of the sliding cover is fixedly connected with a connecting rod, which passes through the corresponding through groove and is fixedly connected to the corresponding sliding plate.

[0009] Preferably, the diameter of the circular groove section inside the slide is equal to the width of the square groove section.

[0010] Preferably, sleeves are symmetrically fixed to the inner wall of the outer shell near the base, and the bottom of the sleeves near the slide plate are all designed with a bevel.

[0011] Preferably, the ends of the pallet and the slide that are close to each other are designed as trapezoidal blocks, and both the pallet and the slide are made of elastic plastic.

[0012] Preferably, the end of the base near the outer shell has a convex design, and the end of the outer shell near the base has a concave design.

[0013] Preferably, heat dissipation grooves are symmetrically and evenly spaced on one side of the outer casing, and a dustproof net is installed on the inner wall of the outer casing on the side closest to the heat dissipation grooves.

[0014] Compared with related technologies, the easily detachable plastic housing for the power adapter provided by this utility model has the following advantages:

[0015] Easy to disassemble and maintain:

[0016] The design of the card plate and the sliding plate, combined with the sliding components (sliding cylinder and tension spring), allows the outer shell to easily engage and disengage with the base without the need for tools or violent disassembly, greatly simplifying the disassembly and assembly process and making it easier for users to perform daily maintenance and replace internal components.

[0017] The structure is robust and safe.

[0018] The convex and concave design of the base and the outer shell, as well as the trapezoidal block snap-fit ​​method of the card plate and the slide plate, not only enhance the stability of the structure, but also ensure the safety of the power adapter during use, effectively preventing accidents caused by loosening or falling off.

[0019] Good sealing performance:

[0020] The tight fit of the sealing gasket effectively prevents external contaminants such as dust and moisture from entering the power adapter, ensuring its good sealing performance, extending the service life of the equipment, and improving the equipment's waterproof and dustproof rating.

[0021] Easy and user-friendly to operate:

[0022] The sliding cover design allows operators to easily control the movement of the skateboard, thereby enabling the engagement and unlocking of the board and skateboard. The operation process is simple and straightforward, requiring no professional skills, which greatly improves the user experience.

[0023] Balancing heat dissipation and dust protection:

[0024] The heat dissipation slots and dustproof screen on the outer casing not only ensure the heat dissipation requirements of the power adapter, but also effectively prevent dust and other debris from entering, thereby improving the operating efficiency and stability of the equipment. Attached Figure Description

[0025] Figure 1 A schematic diagram of the structure of the easily detachable plastic housing for the power adapter provided by this utility model;

[0026] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the outer shell.

[0027] Figure 3 for Figure 2 The diagram shown is a structural schematic of the skateboard.

[0028] Figure 4 for Figure 1 The diagram shows the structure of the sliding component.

[0029] The following are the labels in the diagram: 1. Base; 2. Plug; 3. Mainboard; 4. Housing; 5. Output connector; 6. Sealing gasket; 7. Clamping plate; 8. Slide plate; 9. Slide cylinder; 10. Tension spring; 11. Slide groove; 12. Slide cover; 13. Connecting rod; 14. Sleeve; 15. Heat dissipation groove; 16. Dustproof net. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0032] Please see Figures 1 to 4A detachable plastic housing for a power adapter is disclosed. The detachable plastic housing includes: a base 1, a housing 4, a sealing gasket 6, a retaining plate 7, a sliding plate 8, and a sliding assembly. A plug 2 is installed on one side of the base 1, a main board 3 is installed inside the base 1, and the housing 4 is inserted into the other side of the base 1. An output connector 5 is installed on one side of the housing 4. A sealing gasket 6 is installed on the inner wall of the end of the housing 4 closest to the base 1. Retaining plates 7 are symmetrically installed inside the base 1. Sliding plates 8 corresponding to retaining plates 7 are symmetrically arranged inside the housing 4. A sliding assembly is installed between the housing 4 and the sliding plates 8. The sliding assembly drives the sliding plates 8 to move and engage with the corresponding retaining plates 7. The sliding assembly includes: a sliding cylinder 9 and a tension spring 10. Sliding cylinders 9 are symmetrically fixedly connected inside the housing 4. A square groove is formed inside the end of the sliding cylinder 9 closest to the base 1. The sliding cylinder 9 is further away from the base 1. One end of the square groove is slidably connected to the outer wall of the slide plate 8. The inner wall of the square groove is fixedly connected to the inner wall of the square groove. One end of the spring 10 is fixedly connected to the corresponding slide plate 8. The outer shell 4 has sliding grooves 11 on both sides. The inner wall of the sliding grooves 11 is slidably connected to the sliding cover 12. The side of the slide cylinder 9 near the outer shell 4 has a through groove that passes through the sliding groove 11. The bottom of the sliding cover 12 is fixedly connected to the connecting rod 13. The connecting rod 13 passes through the corresponding through groove and is fixedly connected to the corresponding slide plate 8. The ends of the card plate 7 and the slide plate 8 that are close to each other are both trapezoidal blocks. The card plate 7 and the slide plate 8 are both made of elastic plastic. The end of the base 1 near the outer shell 4 has a convex design. The end of the outer shell 4 near the base 1 has a concave design. The side of the outer shell 4 has symmetrically spaced heat dissipation grooves 15. The inner wall of the side of the outer shell 4 near the heat dissipation grooves 15 is equipped with a dustproof net 16.

[0033] It should be noted that the square groove inside the slide cylinder 9 is connected to the round groove. When the slide cover 12 is pushed to move the slide plate 8, the tension spring 10 is stretched and can pass through the square groove.

[0034] The operator first presses the sliding covers 12 on both sides of the outer shell 4 and slides them towards the base 1. As the sliding covers 12 are pushed forward, the connecting rod 13 drives the slide plate 8 to slide in the square groove of the slide cylinder 9. During the sliding process, the trapezoidal block at one end of the slide plate 8 contacts and presses against the inclined surface at the bottom of the sleeve 14. Since the slide plate 8 is made of elastic plastic, it will undergo moderate elastic deformation under the pressure and move along the inclined surface at the bottom of the sleeve 14. As the slide plate 8 continues to move, its trapezoidal block gradually disengages from the trapezoidal block of the clamping plate 7. During this process, the tension spring 10 is further stretched, providing reserve energy for the reset of the slide plate 8.

[0035] Once the slide plate 8 is fully unlocked from the latch plate 7, the operator can easily grasp the base 1 and pull it outwards to remove it from the outer casing 4. At this point, the operator releases the sliding covers 12 on both sides of the outer casing 4, and the slide plate 8 returns to its original position under the tension of the tension spring 10.

[0036] After maintenance, the operator holds the base 1 and aligns its convex end with the concave end of the outer shell 4, preparing for insertion. As the base 1 moves, the locking plate 7 extends into the interior of the outer shell 4. When the trapezoidal block at one end of the locking plate 7 contacts the trapezoidal block at one end of the slide plate 8, the inclined surfaces of the two trapezoidal blocks press against each other. Since both the slide plate 8 and the locking plate 7 are made of elastic plastic, they will undergo elastic deformation during compression. Continue inserting the base 1. When the trapezoidal block at one end of the locking plate 7 completely detaches from the trapezoidal block at one end of the slide plate 8, due to elastic deformation, the slide plate 8 and the locking plate 7 automatically reset and lock against each other. At this point, the outer shell of the power adapter is reinstalled, maintaining its original sealing and structural integrity.

[0037] Please see Figure 3 and Figure 4 The diameter of the circular groove section inside the slide cylinder 9 is equal to the width of the square groove section;

[0038] It should be noted that during installation, the card plate 7 extends into the interior of the outer shell 4 and contacts the trapezoidal block at one end of the slide plate 8. When it continues to move and press, the end of the slide plate 8 near the trapezoidal block will only be subjected to the pressure of the inclined surface of the trapezoidal block of the card plate 7 and undergo elastic deformation in the direction perpendicular to the inclined surface. It will not push the slide plate 8 to move towards the tension spring 10.

[0039] The working principle of the easily detachable plastic housing for the power adapter provided by this utility model is as follows:

[0040] Initial installation status:

[0041] The fit between the base 1 and the outer shell 4: The convex design of the base 1 fits the concave design of the outer shell 4. The two are tightly joined together to form a stable whole. This design not only enhances the stability of the structure, but also ensures the safety of the power adapter during use.

[0042] The engagement of the card plate 7 and the slide plate 8: The card plate 7 inside the base 1 and the slide plate 8 inside the outer shell 4 are engaged with each other through a trapezoidal block design. This design allows both to undergo moderate elastic deformation when subjected to external force, thus smoothly achieving engagement and unlocking.

[0043] Pre-tensioning of the sliding component: The tension spring 10 inside the slide cylinder 9 is in a natural pre-tensioned state and is connected to one end of the slide plate 8, providing a stable restoring force for the slide plate 8. This ensures that the slide plate 8 can remain in its initial position when it is not subjected to external force.

[0044] The function of sealing gasket 6: Sealing gasket 6 fits tightly against the inner wall of the outer shell 4 near the base 1, effectively preventing external contaminants such as dust and moisture from entering the power adapter and ensuring its good sealing performance.

[0045] Disassembly process:

[0046] The operator first presses the sliding covers 12 on both sides of the outer shell 4 and slides them towards the base 1. As the sliding covers 12 are pushed forward, the connecting rod 13 drives the slide plate 8 to slide in the square groove of the slide cylinder 9. During the sliding process, the trapezoidal block at one end of the slide plate 8 contacts and presses against the inclined surface at the bottom of the sleeve 14. Since the slide plate 8 is made of elastic plastic, it will undergo moderate elastic deformation under the pressure and move along the inclined surface at the bottom of the sleeve 14. As the slide plate 8 continues to move, its trapezoidal block gradually disengages from the trapezoidal block of the clamping plate 7. During this process, the tension spring 10 is further stretched, providing reserve energy for the reset of the slide plate 8.

[0047] Once the slide plate 8 is fully unlocked from the latch plate 7, the operator can easily grasp the base 1 and pull it outwards to remove it from the outer casing 4. At this point, the operator releases the sliding covers 12 on both sides of the outer casing 4, and the slide plate 8 returns to its original position under the tension of the tension spring 10.

[0048] Reinstallation process:

[0049] After maintenance, the operator holds the base 1 and aligns its convex end with the concave end of the outer shell 4, preparing for insertion. As the base 1 moves, the locking plate 7 extends into the interior of the outer shell 4. When the trapezoidal block at one end of the locking plate 7 contacts the trapezoidal block at one end of the slide plate 8, the inclined surfaces of the two trapezoidal blocks press against each other. Since both the slide plate 8 and the locking plate 7 are made of elastic plastic, they will undergo elastic deformation during compression. Continue inserting the base 1. When the trapezoidal block at one end of the locking plate 7 completely detaches from the trapezoidal block at one end of the slide plate 8, due to elastic deformation, the slide plate 8 and the locking plate 7 automatically reset and lock against each other. At this point, the outer shell of the power adapter is reinstalled, maintaining its original sealing and structural integrity.

[0050] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A detachable plastic housing for a power adapter, characterized by, include: Base (1), plug (2) is installed on one side of base (1), and motherboard (3) is installed inside base (1); The outer shell (4) is inserted into the other side of the base (1), and an output connector (5) is installed on one side of the outer shell (4). A sealing gasket (6) is installed on the inner wall of the outer shell (4) near the base (1). The card plate (7) is symmetrically installed inside the base (1); The skateboard (8) is symmetrically provided inside the outer shell (4) with a corresponding skateboard (7); A sliding assembly is installed between the outer shell (4) and the slide plate (8). The sliding assembly drives the slide plate (8) to move and engage with the corresponding plate (7).

2. The detachable plastic shell for power adapter as claimed in claim 1, wherein The sliding assembly includes a slide cylinder (9) and a tension spring (10). The slide cylinder (9) is symmetrically fixedly connected inside the outer shell (4). A square groove is opened inside the end of the slide cylinder (9) near the base (1), and a round groove is opened inside the end of the slide cylinder (9) away from the base (1). The inner wall of the square groove is slidably connected to the outer wall of the slide plate (8). The inner wall of the round groove is fixedly connected to a tension spring (10). One end of the tension spring (10) is fixedly connected to the corresponding slide plate (8).

3. The detachable plastic shell for power adapter as claimed in claim 2, wherein Both sides of the outer shell (4) are provided with sliding grooves (11), and the inner walls of the sliding grooves (11) are slidably connected with sliding covers (12). The side of the sliding cylinder (9) near the outer shell (4) is provided with a through groove that passes through the sliding groove (11). The bottom of the sliding cover (12) is fixedly connected with a connecting rod (13), and the connecting rod (13) passes through the corresponding through groove and is fixedly connected to the corresponding sliding plate (8).

4. The detachable plastic shell for power adapter as claimed in claim 2, wherein The diameter of the circular groove section inside the slide tube (9) is equal to the width of the square groove section.

5. The detachable plastic shell for power adapter as claimed in claim 2, wherein A sleeve (14) is symmetrically fixed to the inner wall of the outer shell (4) near the base (1). The bottom of the sleeve (14) near the slide plate (8) is designed with a slope.

6. The detachable plastic shell for power adapter as claimed in claim 1, wherein Both the pallet (7) and the skateboard (8) are trapezoidal blocks at their closest points, and both are made of elastic plastic.

7. The detachable plastic shell for power adapter as claimed in claim 1, wherein The base (1) has a convex design at one end near the outer shell (4), and the outer shell (4) has a concave design at one end near the base (1).

8. The detachable plastic shell for power adapter as claimed in claim 1, wherein A heat dissipation groove (15) is symmetrically provided on one side of the outer shell (4), and a dustproof net (16) is installed on the inner wall of the outer shell (4) near the heat dissipation groove (15).