Packaging structure of switching power supply

Abstract

The utility model relates to the technical field of switching power supplies, in particular to a packaging structure of a switching power supply, which comprises a middle shell, an upper sealing cover and a lower sealing cover are respectively arranged at the top and the bottom of the middle shell, and limiting slots are arranged at four corners in the middle shell. According to the utility model, the packaging shell of the switching power supply can be disassembled and assembled without external tools such as screws, screwdrivers and the like, the structure is simple, the operation is convenient, the operation is convenient, and the cost is low. And the problem that the firmness of the connecting position is damaged due to the fact that the screw is prone to rusting in the long-time use process and threads of the threaded hole are damaged is solved, convenience is brought to workers, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of switching power supplies, and particularly relates to a packaging structure of a switching power supply. Background Technique

[0002] A switching mode power supply, also known as a switched-mode power supply or a switching converter, is a high-frequency power conversion device and a type of power supply. Its function is to convert a voltage level into the voltage or current required by the user through different forms of architectures. The input of a switching power supply is mostly an AC power supply or a DC power supply, and the output is mostly equipment that requires a DC power supply, such as a personal computer. The switching power supply then converts the voltage and current between the two.

[0003] For the existing packaging structure of a switching power supply, although it can achieve the sealing of the packaging structure, when installing, it is necessary to fix the four corners of the substrate with screws, which not only makes the installation time-consuming and laborious, but also the screws are prone to rust and cause damage to the threads of the threaded holes during long-term use, thereby destroying the firmness of the connection, bringing inconvenience to the staff, and having low practicability.

[0004] Therefore, it is particularly important to design a packaging structure of a switching power supply to change the above technical defects and improve the overall practicability. Content of the Utility Model

[0005] The purpose of the utility model is to provide a packaging structure of a switching power supply to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A packaging structure of a switching power supply includes a middle housing. Upper and lower covers are respectively arranged at the top and bottom of the middle housing. Limiting slots are respectively opened at the four corners inside the middle housing. Limiting posts that are matched with the limiting slots are respectively arranged at the four corners on the opposite sides of the upper and lower covers. Connecting ear plates are symmetrically arranged left and right on the front and rear sides of the upper and lower covers. A fixed insertion rod is connected to the bottom of the connecting ear plate at the position of the upper cover. An elastic snap is arranged at the outer side of the fixed insertion rod and at the bottom end. A fixed insertion sleeve that is matched with the fixed insertion rod is connected to the top of the connecting ear plate at the position of the lower cover. A through hole groove is inwardly opened at the outer side of the fixed insertion sleeve and near the middle position. A compression spring ring is fixed to the bottom inside the fixed insertion sleeve. A top piece is connected to the top of the compression spring ring.

[0008] As a preferred scheme of the utility model, the middle housing and the upper cover and the lower cover are respectively designed with a separable structure.

[0009] As a preferred solution of the present utility model, the connection mode between the limit slot and the limit plug is a plug-in connection, and the internal structure size of the limit slot is adapted to the external structure size of the limit plug.

[0010] As a preferred solution of the present utility model, the connection mode between the fixed plug rod and the fixed socket is a plug-in connection, and the internal structure size of the fixed socket is adapted to the external structure size of the fixed plug rod.

[0011] As a preferred solution of the present utility model, the connection mode between the elastic snap button and the through hole groove is a snap-fit connection.

[0012] As a preferred solution of the present utility model, the connection mode between the top piece and the fixed socket is a sliding connection.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the present utility model, by providing a packaging structure of a switching power supply, the packaging shell of the switching power supply can be disassembled and assembled without the aid of external tools such as screws and screwdrivers. The structure is simple and the operation is convenient, and there will be no problem that the screws are prone to rust during long-term use and cause damage to the thread teeth of the threaded holes, thereby destroying the firmness of the connection, which brings convenience to the staff and improves the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional view of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the disassembly of the overall structure of the present utility model;

[0017] Figure 3 is a schematic diagram of a partial structure of the present utility model.

[0018] In the figure: 1, middle housing; 101, limit slot; 2, upper cover; 3, lower cover; 4, limit plug; 5, connecting ear plate; 501, fixed plug rod; 502, elastic snap button; 503, fixed socket; 504, through hole groove; 505, extrusion spring ring; 506, top piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] For the embodiments, please refer to Figures 1-3 , the present utility model provides a technical solution:

[0024] A packaging structure of a switching power supply, including a middle housing 1. Upper covers 2 and lower covers 3 are respectively arranged at the top and bottom of the middle housing 1. Limiting slots 101 are respectively opened at the four corners inside the middle housing 1. Limiting posts 4 that cooperate with the limiting slots 101 are respectively arranged at the four corners on the opposite sides of the upper covers 2 and the lower covers 3. Connecting ear plates 5 are symmetrically arranged left and right on the front and rear sides of the upper covers 2 and the lower covers 3.

[0025] Among them, the middle housing 1 and the upper covers 2 and the lower covers 3 are respectively designed with a separated structure. The connection mode between the limiting slots 101 and the limiting posts 4 is a plug-in connection. The internal structure size of the limiting slots 101 is adapted to the external structure size of the limiting posts 4.

[0026] In this embodiment, please refer to Figure 2 and Figure 3, at the bottom of the connecting lug plate 5 located at the position of the upper cover 2, a fixed insertion rod 501 is connected. At the outer side of the fixed insertion rod 501 and at the bottom position, an elastic snap button 502 is arranged. At the top of the connecting lug plate 5 located at the position of the lower cover 3, a fixed insertion sleeve 503 which is used in cooperation with the fixed insertion rod 501 is connected. At the outer side of the fixed insertion sleeve 503 and near the middle position, a through hole groove 504 is inwardly opened. At the bottom inside the fixed insertion sleeve 503, an extrusion spring ring 505 is fixed. At the top of the extrusion spring ring 505, a top piece 506 is connected.

[0027] Among them, the connection method between the fixed insertion rod 501 and the fixed insertion sleeve 503 is plug-in connection. The internal structure size of the fixed insertion sleeve 503 is adapted to the external structure size of the fixed insertion rod 501. The connection method between the elastic snap button 502 and the through hole groove 504 is snap-fit connection. The connection method between the top piece 506 and the fixed insertion sleeve 503 is sliding connection.

[0028] The working process of the utility model: When in use, first, the upper cover 2 and the lower cover 3 are assembled at the correct positions on the top and bottom of the middle housing 1 by inserting the limit insertion post 4 into the corresponding limit insertion slot 101. At this time, the fixed insertion rod 501 is also smoothly inserted into the fixed insertion sleeve 503. Then, press down forcefully to make the fixed insertion rod 501 press the top piece 506 downward, and the extrusion spring ring 505 contracts and the elastic snap button 502 is stuck in the through hole groove 504 for fixation, so as to quickly complete the encapsulation of the switching power supply. And under the elastic force of the extrusion spring ring 505, the elastic snap button 502 is more stably snap-connected. At the same time, when disassembling and taking out, when pressing the elastic snap button 502, the force provided by the extrusion spring ring 505 will also facilitate the opening of the cover, which is more labor-saving.

[0029] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A packaging structure of a switching power supply, including a middle housing (1), characterized in that: The top and bottom of the middle housing (1) are respectively provided with an upper cover (2) and a lower cover (3). Limit slots (101) are opened at the four corners inside the middle housing (1). Limit pins (4) that cooperate with the limit slots (101) are provided at the four corners on the opposite sides of the upper cover (2) and the lower cover (3). Connecting ear plates (5) are symmetrically arranged left and right on the front and rear sides of the upper cover (2) and the lower cover (3). A fixed insertion rod (501) is connected to the bottom of the connecting ear plate (5) at the position of the upper cover (2). An elastic snap button (502) is arranged on the outer side of the fixed insertion rod (501) at the bottom end. A fixed insertion sleeve (503) that cooperates with the fixed insertion rod (501) is connected to the top of the connecting ear plate (5) at the position of the lower cover (3). A through hole groove (504) is opened inward near the middle position on the outer side of the fixed insertion sleeve (503). A compression spring ring (505) is fixed to the bottom inside the fixed insertion sleeve (503). A top piece (506) is connected to the top of the compression spring ring (505).

2. The packaging structure of a switching power supply according to claim 1, wherein: The middle housing (1) and the upper cover (2) and the lower cover (3) are respectively designed with a separated structure.

3. The encapsulation structure of a switching power supply according to claim 1, wherein: The connection method between the limit slot (101) and the limit pin (4) is a plug-and-play connection, and the internal structure size of the limit slot (101) is adapted to the external structure size of the limit pin (4).

4. A packaging structure of a switching power supply according to claim 1, characterized in that: The connection method between the fixed insertion rod (501) and the fixed insertion sleeve (503) is a plug-and-play connection, and the internal structure size of the fixed insertion sleeve (503) is adapted to the external structure size of the fixed insertion rod (501).

5. The encapsulation structure of a switching power supply according to claim 1, wherein: The connection method between the elastic snap button (502) and the through hole groove (504) is a snap-fit connection.

6. The encapsulation structure of a switching power supply according to claim 1, wherein: The connection method between the top piece (506) and the fixed insertion sleeve (503) is a sliding connection.

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