Switching power supply structure convenient to assemble

Abstract

A switching power supply structure convenient to assemble comprises a shielding box, a shielding cover, a small socket support and a PCB, the PCB is arranged on the inner side of the shielding box, the shielding cover is fixed to the upper edge of the shielding box, the top of the small socket support is fixed to the bottom of the shielding cover through screws, the side face of the small socket support is fixed to the inner wall of the shielding box through screws, and a small socket on the PCB penetrates through a strip hole in the bottom wall of the small socket support. And therefore, electrical performance connection with an external power supply is facilitated. According to the utility model, through the design of the separable small socket support structure, the requirement of limited arrangement space of a circuit board is met, and the assembly efficiency and accuracy are improved. In addition, the overall flatness of the shielding cover can be effectively kept, the production process is simplified, the manufacturing cost is reduced, and the shielding cover has obvious market application potential and economic benefits.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of switching power supply, especially relates to a switching power supply structure convenient to assemble. BACKGROUND

[0002] In power supply design, the limitation of the size makes the arrangement space of the internal printed board PCB very nervous. Therefore, when designing the structure, how to maximize the size of the circuit board to accommodate more components must be considered.

[0003] Firstly, due to the position limitation of the small socket, the installation direction of the circuit board needs to be solved. If the modeling of the small socket is reserved in the design of the shielding box, only the bottom surface can be opened, so that the assembly will become the shielding box, the shielding cover and the lower shielding cover. At the same time, when the modeling of the shielding box and the small socket is designed as a whole, the processing needs to adopt the electric spark process EDM processing, which not only increases the manufacturing difficulty, but also increases the cost.

[0004] Secondly, if the modeling around the small socket is reserved in the upper cover, it may affect the overall flatness of the upper cover, causing slight deformation. In addition, this design needs more processing materials and more complex processing technology, further increasing the cost.

[0005] Based on the above-mentioned deficiencies of the prior art, the utility model provides a split type power switch structure composed of a shielding box, a shielding cover and a small socket support, which can maximize the space utilization of the circuit board and simplify the assembly process without increasing the manufacturing difficulty and cost. SUMMARY

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is: a switching power supply structure convenient to assemble, comprising: a shielding box, a shielding cover, a small socket support and a PCB board, the PCB board is arranged on the inner side of the shielding box, the shielding cover is fixed on the upper edge of the shielding box, the small socket of the PCB board passes through the small socket support bottom wall strip hole II and is arranged in the small socket support, the top and side of the small socket support are respectively connected with the bottom of the shielding cover and the side wall of the shielding box, and can be separated from the shielding cover and the shielding box.

[0007] The utility model discloses a switching power supply structure convenient to assemble, which is mainly characterized by the separated design of the small socket support. The small socket support is fixed on the bottom of the shielding cover and the side wall of the shielding box by screws, greatly simplifying the assembly process and optimizing the space utilization.

[0008] In the traditional design, the position limitation of the small socket usually requires the cover to be opened from the bottom surface, which increases the manufacturing difficulty and cost. The utility model discloses a separated structure, which not only avoids these problems, but also maintains the overall flatness of the shielding cover, improves the assembly efficiency and accuracy. The separated design of the small socket support makes the installation and disassembly more convenient, and avoids the displacement of the small socket caused by the vibration of the switching power supply during work, preventing the damage of the small socket and other components.

[0009] In addition, the design maximizes the layout space of the circuit board, solves the space shortage problem caused by the size limitation in the traditional design. The stable connection between the small socket support and the shielding cover avoids the deformation of the upper cover. This not only reduces the use of processing materials, but also further reduces the production cost.

[0010] Therefore, the utility model significantly simplifies the production process, improves the assembly efficiency and product quality. The innovative design meets the demand of the tight layout space of the circuit board, reduces the manufacturing cost, improves the production efficiency and product reliability, has obvious market application potential and economic benefit. It realizes a technical breakthrough in the switching power supply structure design, and provides an efficient and low-cost solution. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the structure of the utility model;

[0013] Figure 3 It is a schematic diagram of the shielding box of the utility model;

[0014] Figure 4 It is a schematic diagram of the shielding cover of the utility model;

[0015] Figure 5 It is a schematic diagram of the small socket support of the utility model;

[0016] Figure 6 It is a schematic diagram of the PCB of the utility model;

[0017] Figure 7 It is a schematic diagram of the assembly sequence of the embodiment of the utility model.

[0018] In the diagram: 1. Shielding box; 1-1. Support block; 1-1-1. Threaded hole I; 1-2. Boss; 1-3. Countersunk hole I; 1-4. Recess I; 1-5. Countersunk hole II; 2. Shielding cover; 2-1. Recess II; 2-2. Countersunk hole III; 2-3. Boss; 2-3-1. Threaded hole II; 2-4. Groove; 2-5. Strip hole I; 3. Small socket bracket; 3-1. Support block; 3-1-1. Threaded hole III; 3-1-2. Threaded hole IV; 3-2. Strip hole II; 4. PCB board; 4-1. Small socket; 4-2. Large socket; 4-3. Screw hole. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figures 1-2 As shown, a switching power supply structure that is easy to assemble includes a shielding box 1, a shielding cover 2, a small socket bracket 3, and a PCB board 4.

[0021] like Figure 3 As shown, the shielding box 1 is a machined metal cube hollow structure with a closed bottom wall. Multiple PCB board support blocks 1-1 are symmetrically opened around the bottom of the inner wall. Threaded holes I1-1-1 are opened on the support blocks 1-1 for installing and fixing the PCB board 4. The four corners and the center of the two long sides of the shielding box 1 are longitudinally symmetrically machined into inwardly protruding semi-circular positioning bosses 1-2 for positioning the shielding cover 2 and the PCB board 4. Multiple countersunk holes I1-3 are opened on the upper side of the four walls near the edge for installing and fixing the shielding cover 2. A rectangular notch I1-4 is opened at one end of the upper side of the wall for supporting the small socket bracket 3. Two countersunk holes II1-5 are opened on the outer side of the two vertical sides of the notch I1-4 for fixing the small socket bracket 3.

[0022] like Figure 4 As shown, the shielding cover 2 is a machined metal plate structure, which is rectangular in shape. The shape and size of its outer edge are the same as the outer wall of the upper edge of the shielding box 1. A rectangular notch II2-1 is provided at one end for cooperating with the small socket bracket 3 to reserve space for the small socket on the PCB board 4. Countersunk holes III2-2 are provided on the outer sides of the notch II2-1 for connecting and fixing with the small socket bracket 3. Several protrusions 2-3 are provided near the bottom of the four edges. The outer side of the protrusions 2-3 fits with the inner wall of the upper edge of the shielding box 1. Threaded holes II2-3-1 are provided on the protrusions 2-3, and the hole positions correspond to the countersunk holes I1-3 on the four walls of the shielding box 1 for connecting and fixing with the shielding box 1 by screws. Positioning grooves 2-4 that match the positioning protrusions 1-2 of the shielding box 1 are provided at the four corners and the center of the two long sides of the shielding cover 2. A rectangular strip hole I2-5 is provided on one side of the short side of the shielding cover 2 near the edge for positioning the large socket interface on the PCB board.

[0023] As shown in Figure 5 , the small socket support 3 is a machined metal cube hollow structure, with an open top and one side, the inner wall upper edge shape and size match the shield cover recess II2-1, the side opening outer wall size is the same as the shield box 1 recess I1-4, the bottom wall is provided with a rectangular slot II3-2 for placing the small socket 4-1 on the PCB board 4, the three side outer walls are provided with four support blocks 3-1, the support block 3-1 top is provided with a threaded hole III3-1-1, the hole position matches the countersunk hole III2-2 of the shield cover, used for connecting and fixing the small socket support 3 and the shield cover 2 with screws, the longitudinal section of the two support blocks 3-1 near the side opening end are provided with threaded holes IV3-1-2, used for connecting and fixing the small socket support 3 and the shield box 1 side wall with screws;

[0024] As shown in Figure 6 , the PCB board 4 shape edge and size are the same as the shield box 1 inner wall, the periphery near the edge is processed with multiple screw holes 4-3 matching the threaded hole I1-1-1 of the support block 1-1, the positions of the small socket 4-1 and the large socket 4-2 on the PCB board 4 respectively correspond to the recess II2-1 and the slot I2-5 of the shield cover 2.

[0025] The embodiment, as shown in Figure 7 , the assembly steps of the power switch are as follows: firstly, place the lower PCB board 4 in the internal cavity of the shield box 1, the PCB board 4 is tightly attached to the support block 1-1, use screws to pass through the screw holes 4-3 of the PCB board 4 and the threaded holes I1-1-1 of the support block 1-1 to connect and fix; then, align the upper edge of the small socket support 3 with the recess II2-1 of the shield cover, use screws to pass through the countersunk holes III2-2 around the recess II2-1 of the shield cover from above, connect with the threaded holes III3-1-1 at the top of the support blocks 3-1 of the small socket support, and fix the small socket support 3 at the bottom of the shield cover 2 by tightening; then, place the shield cover 2 on the upper edge of the shield box 1, pass the large socket interface through the slot I2-5 on the shield cover 2, pass the small socket through the slot II3-2 on the bottom wall of the small socket support 3, and place the protruding block 2-3 on the inner wall of the upper edge of the shield box 1, use screws to pass through the countersunk holes I1-3 on the upper side of the four walls of the shield box 1 and connect with the threaded holes 2-3-1 of the protruding block 2-3, and fix the shield cover 2 on the upper side of the shield box by tightening; finally, use screws to pass through the two countersunk holes II1-5 outside the recess I1-4 of the shield box and connect with the threaded holes IV3-1-2 of the small socket support 3, and fix the small socket support 3 and the side wall of the shield box 1 by tightening, and the assembly is completed. The small socket support 3 is fixed horizontally and vertically with the shield cover 2 and the shield box 1, which effectively prevents the displacement of the small socket support 3 caused by the vibration of the switch power supply during work.

Claims

1. A switch mode power supply structure for ease of assembly, comprising: The utility model relates to a shielding box (1), shielding cover (2), small socket support (3) and PCB board (4), PCB board (4) sets up inside shielding box (1), shielding cover (2) is fixed on the upper edge of shielding box (1), and the small socket (4-1) of PCB board (4) passes through small socket support (3) bottom wall strip hole II (3-2) and sets up in small socket support (3), its characterized in that small socket support (3) top and side respectively with the bottom of shielding cover (2) and the lateral wall of shielding box (1) swing joint, and can separate with shielding cover (2) and shielding box (1).

2. The switch power supply structure according to claim 1, wherein The shielding box (1) is hollow barrel structure in cube, bottom wall is closed, and a plurality of PCB board to pieces (1-1) are symmetrically arranged on the bottom of the inner wall, a threaded hole I (1-1-1) is formed on the to piece (1-1), is used for installing and fixing the PCB board (4), the four corners and the two long side central longitudinal symmetry of the barrel wall of the shielding box (1) are processed into inward protruding semicircular positioning boss (1-2), are used for positioning the shielding cover (2) and the PCB board (4), a plurality of countersunk hole I (1-3) are formed on the upper side of the barrel wall close to the edge, are used for installing and fixing the shielding cover (2), the upper side of the barrel wall of the shielding box (1) still forms rectangular recess I (1-4), is used for supporting small socket support (3), two countersunk hole II (1-5) are formed on the outer side of the two vertical edges of the recess I (1-4), are used for fixing small socket support (3).

3. The switch power supply structure according to claim 1, wherein The shielding cover (2) one end is provided with a rectangular recess II (2-1), and three edges of the recess II (2-1) are provided with countersunk hole III (2-2), which is used for connecting and fixing with the small socket support (3), and a plurality of protrusions (2-3) are arranged on the bottom of the edge of the shielding cover (2), the outer side position of the protrusion (2-3) is consistent with the inner wall of the upper edge of the shielding box (1), and a threaded hole (2-3-1) is formed on the protrusion (2-3), which is used for connecting and fixing with the shielding box (1) by screw.

4. The switch power supply structure according to claim 1, wherein The small socket support (3) is a hollow structure in cube, and the top and one side are open, the shape and size of the inner wall upper edge are consistent with the recess II (2-1) of the shielding cover (2), the size of the side opening is same with the recess I (1-4) of the shielding box (1), and the bottom wall is provided with a rectangular strip hole II (3-2) for arranging the small socket (4-1) on the PCB board (4), a plurality of supporting blocks (3-1) are formed on the three edges of the outer wall of the small socket support (3), the top of the supporting block (3-1) is provided with a threaded hole III (3-1-1), the opening position is matched with the countersunk hole III (2-2) of the shielding cover (2), which is used for connecting and fixing the small socket support (3) with the shielding cover (2) by screw, and the longitudinal section of the two supporting blocks of the opening end is provided with a threaded hole IV (3-1-2), which is used for connecting and fixing the small socket support (3) with the outer wall of the shielding box (1) by screw.

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