Mainboard structure and power supply device

Abstract

The utility model discloses a main board structure and a power supply device, the main board structure comprises a main board body and an adapter plate, the main board body is provided with a slot hole penetrating through the thickness of the main board body, the adapter plate is located right below the slot hole, the adapter plate and the main board body are welded and fixed, and the slot hole is used for a capacitor to penetrate through so as to enable the capacitor to be connected with the adapter plate. By means of the design, the occupancy rate of the capacitor on the space above the mainboard body is reduced, the capacitor is connected with the adapter plate located below the mainboard body through the slot, on one hand, the space of the surface of the mainboard is greatly saved, and on the other hand, it can be guaranteed that an enough gap exists between the top end of the capacitor and the upper cover of the power supply device. Therefore, the top valve opening space of the capacitor is sufficient, and normal valve opening of the capacitor is ensured. And secondly, due to the design, other key elements can be compactly arranged in the power supply device, and the overall space utilization rate is improved.

Description

Technical Field

[0001] This utility model relates to the field of computer power supply technology, and more specifically, to a motherboard structure and power supply device. Background Technology

[0002] Switching power supplies are widely used in electronic devices. Unlike traditional linear power supplies, switching power supplies use high-frequency switching circuits to achieve power conversion, offering advantages such as small size, high efficiency, and good stability. The operating cycle of a switching power supply consists of two parts: a charging state and a discharging state. In the charging state, the switching transistor is driven by the input voltage, fully charging the capacitor and increasing the voltage. When a certain voltage is reached, the switching transistor turns off, and the capacitor supplies power to the output circuit. In the discharging state, the switching transistor turns on again, discharging the capacitor, and the output voltage decreases accordingly.

[0003] Switching power supplies offer advantages such as small size, high efficiency, good stability, and high reliability, leading to their widespread use in modern electronic devices. For example, computers, communication equipment, industrial automation, medical equipment, and LED lighting all require switching power supplies to provide power. They are also used in home appliances and automotive electronics.

[0004] See Figure 1 As shown, capacitors with a height of 30mm ± 2mm are commonly used in switching power supplies, meaning the positive tolerance height h1 of the capacitor is 32mm. Since the overall height of the power supply is 39.8mm, the space above the PCB circuit board installed inside the power supply is generally around 33.2mm. As a result, the distance h2 between the top of the capacitor and the top cover is only about 1.2mm, which can easily lead to insufficient space for the capacitor to open, thus preventing the capacitor from opening properly.

[0005] Given the aforementioned issue of insufficient space at the top of the capacitor for valve opening, existing solutions typically involve mounting the capacitor horizontally to allow for sufficient space. However, horizontally mounted capacitors extend horizontally along the PCB, occupying a significant amount of planar space. The PCB needs to provide ample space for the capacitor to avoid interference or conflict with other components. Furthermore, with the increasing power density and shrinking size of switching power supplies, it's difficult to find sufficient internal space to accommodate horizontal capacitors. Utility Model Content

[0006] In order to overcome the shortcomings of the existing technology, this utility model provides a motherboard structure that can save internal space of the power supply device and solve the problem of insufficient space for capacitor opening valve.

[0007] The technical solution of this utility model is as follows: A motherboard structure includes a motherboard body and an adapter board. The motherboard body has a slot that penetrates the thickness of the motherboard body. The adapter board is located directly below the slot and is welded and fixed to the motherboard body. The slot is used for capacitors to pass through so that the capacitors are connected to the adapter board.

[0008] Furthermore, each of the four corners of the top surface of the adapter board is provided with a first adapter pad, and each first adapter pad is provided with a groove extending inward from the edge of the adapter board, and the sidewall of the groove is provided with a copper plating layer.

[0009] Furthermore, the groove is semi-circular in shape.

[0010] Furthermore, the BOTTOM side of the motherboard body is provided with four second adapter pads, and the four second adapter pads are configured in a one-to-one correspondence with the four first adapter pads.

[0011] Furthermore, the area of ​​the second adapter pad is larger than the area of ​​the first adapter pad.

[0012] Furthermore, the diameter of the slot is larger than the diameter of the capacitor.

[0013] Furthermore, the motherboard body is provided with multiple mounting holes for fasteners to pass through.

[0014] Furthermore, adhesive layers are provided on the four sides of the adapter plate, and the adhesive layers are used to bond and fix the adapter plate and the main body.

[0015] In addition, this utility model also provides a power supply device, including the aforementioned motherboard structure and housing, wherein a protrusion is provided inside the housing, and the motherboard body is mounted on the protrusion.

[0016] Furthermore, the protrusion is provided with a threaded hole, and the threaded hole and the mounting hole are provided correspondingly. One end of the fastener passes through the mounting hole to be embedded in the threaded hole.

[0017] The advantages of this utility model according to the above solution are as follows: The motherboard structure provided by this utility model includes a motherboard body and an adapter board. The motherboard body has a slot extending through its thickness. The adapter board is located directly below the slot and is welded to the motherboard body. The slot allows capacitors to pass through and connect to the adapter board. This design reduces the space occupied by capacitors on the upper part of the motherboard body. The capacitors connect to the adapter board located below the motherboard body through the slot, which greatly saves space on the motherboard surface and ensures sufficient clearance between the top of the capacitor and the top cover of the power supply unit, thus providing ample space for the capacitor to open properly. Furthermore, this design allows for a compact layout of other key components inside the power supply unit, improving overall space utilization. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0019] Figure 1 A schematic diagram of an existing capacitor mounted upright inside a power supply unit;

[0020] Figure 2 This is a planar schematic diagram of the capacitor adapter board and capacitor in an embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the motherboard body in an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the installation of the motherboard body and capacitor adapter board in an embodiment of this utility model;

[0023] Figure 5 This is one of the internal structural schematic diagrams of the power supply device in the embodiments of this utility model;

[0024] Figure 6 This is the second schematic diagram of the internal structure of the power supply device in the embodiment of this utility model.

[0025] In the diagram, 1. Mainboard body; 11. Slot; 12. Second adapter pad; 2. Adapter board; 21. First adapter pad; 22. Groove; 3. Fastener; 4. Adhesive layer; 5. Housing; 51. Protrusion; 6. Capacitor; 7. Cover plate. Detailed Implementation

[0026] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present invention by way of example, but should not be used to limit the scope of the present invention, that is, the present invention is not limited to the described embodiments.

[0027] To better understand this utility model, the following description, in conjunction with the accompanying drawings and embodiments, will further illustrate the present utility model:

[0028] See Figures 2-6 As shown in the figure, the present invention provides a motherboard structure including a motherboard body 1 and an adapter board 2.

[0029] Specifically, the motherboard body 1 is provided with a slot 11 that penetrates the thickness of the motherboard body 1. The external dimensions of the slot 11 match those of the capacitor 6. The adapter plate 2 is located directly below the slot 11 and covers the slot 11. The adapter plate 2 and the motherboard body 1 are welded and fixed. The slot 11 is used for the capacitor 6 to pass through so that the capacitor 6 can be connected to the adapter plate 2.

[0030] In a power supply unit, the opening space at the top of capacitor 6 is crucial for its normal operation. Insufficient space between capacitor 6 and the top cover of the power supply unit may prevent capacitor 6 from opening properly, thus affecting its performance. In this application, the lower end of capacitor 6 passes through slot 11 and connects to the adapter plate 2 located below the motherboard body 1. This increases the distance between the top of capacitor 6 and the top cover, reducing the space occupied by capacitor 6 on the upper part of the motherboard body 1. This significantly saves space on the motherboard surface and ensures sufficient opening space between the top of capacitor 6 and the top cover of the power supply unit, guaranteeing proper opening of capacitor 6. Furthermore, this design allows for a compact layout of other key components within the power supply unit, improving overall space utilization.

[0031] See Figure 2 As shown, each of the four corners of the top surface of the adapter board 2 has a first adapter pad 21. Each first adapter pad 21 has a groove 22 extending inward from the edge of the adapter board 2, and the sidewall of the groove 22 is plated with copper. This design improves the weldability and welding strength when the adapter board 2 and the motherboard body 1 are welded and fixed, ensuring the secure installation between the adapter board 2 and the motherboard body 1.

[0032] Specifically, the groove 22 extends inward from the edge of the adapter plate 2, which helps to guide the flow of solder during the soldering process, ensuring that the solder can fully fill and firmly connect the adapter plate 2 and the main body 1.

[0033] The sidewalls of the groove 22 are copper-plated, which effectively enhances the bonding force between the sidewalls of the groove 22 and the solder, thereby further improving the welding strength and reliability.

[0034] In this embodiment, the groove 22 is semi-circular. When the solder melts, it can flow smoothly along the arc-shaped sidewall of the groove 22, ensuring that the solder is evenly distributed on the welding surface of the adapter plate 2 and the main body 1, reducing welding defects such as insufficient solder or solder accumulation, and thus helping to improve the welding strength. This ensures that the adapter plate 2 will not loosen or fall off due to factors such as vibration or temperature changes during long-term use.

[0035] In this embodiment, the BOTTOM side of the motherboard body 1 is provided with four second adapter pads 12, which correspond one-to-one with four first adapter pads 21. Specifically, the area of ​​the second adapter pads 12 is larger than the area of ​​the first adapter pads 21.

[0036] Specifically, before the motherboard body 1 and the adapter board 2 are soldered and fixed, solder paste is printed on the second adapter pad 12 of the motherboard body 1. The area of ​​the second adapter pad 12 is larger than the area of ​​the first adapter pad 21. This design ensures that there is enough solder paste, so that there is sufficient solder during soldering. Secondly, the larger area of ​​the second adapter pad 12 provides more tolerance for errors in the soldering operation. During the soldering process, even if there is a slight deviation in the soldering position, the larger size of the second adapter pad 12 can still ensure that the first adapter pad 21 and the second adapter pad 12 are aligned. This allows the solder on the second adapter pad 12 to form a good connection with the two adapter pads, which helps to improve soldering efficiency and reduce rework and repair costs caused by inaccurate soldering positions.

[0037] In this embodiment, the diameter of the slot 11 is larger than the diameter of the capacitor 6. This design allows the capacitor 6 to pass through the slot 11 and be mounted on the adapter plate 2.

[0038] In this embodiment, the motherboard body 1 is provided with a plurality of mounting holes for fasteners 3 to pass through.

[0039] To enhance the connection strength between the adapter board 2 and the main board body 1, adhesive layers 4 are provided on the four sides of the adapter board 2. The adhesive layers 4 are used to bond and fix the adapter board 2 and the main board body 1 together.

[0040] In addition, this utility model embodiment also provides a power supply device, including the above-mentioned motherboard structure and housing 5. A protrusion 51 is provided inside the housing 5, the motherboard body 1 is mounted on the protrusion 51, and a cover plate 7 for covering the opening of the housing 5 is provided at the upper end of the housing 5.

[0041] The protrusion 51 is provided with a threaded hole, and the threaded hole and the mounting hole are provided in a corresponding manner. One end of the fastener 3 passes through the mounting hole and is embedded in the threaded hole.

[0042] To further illustrate this point, this embodiment also provides an installation process for a motherboard structure, as detailed below:

[0043] Step 1: First, apply sufficient solder paste to the second adapter pad 12 of the motherboard body 1;

[0044] Step 2: Inspect the surface of adapter board 2 to ensure there are no burrs on its edges. Then, align and flatten the first adapter pad 21 on adapter board 2 with the second adapter pad 12 on the motherboard body 1, ensuring that the component faces on adapter board 2 and motherboard body 1 are aligned. That is, when adapter board 2 and motherboard body 1 are flat, the orientation of the components or circuit layout on it should be consistent with the orientation of the components on motherboard body 1. When the component face of motherboard body 1 is facing upwards, adapter board 2 should also be installed with its component or circuit layout facing upwards to maintain orientation consistency.

[0045] Step 3: Use a reflow oven process to weld the adapter plate 2 onto the main body 1. After welding, check whether the adapter plate 2 has any floating or misalignment.

[0046] Step 4: Apply red glue around the perimeter of the adapter board 2 to form an adhesive layer 4, which will bond the adapter board 2 to the motherboard body 1 and enhance the bonding strength between the adapter board 2 and the motherboard body 1.

[0047] In this embodiment, after the capacitor 6 is soldered, compared with the design of vertically mounting the capacitor 6 on the motherboard body 1, the valve opening space at the top of the capacitor 6 has an additional thickness of the motherboard body 1, so that the valve opening space h3 at the top of the capacitor 6 can reach 2.8mm, thereby solving the problem of insufficient valve opening space of the capacitor 6.

[0048] It should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art, or the orientation or positional relationship that the product is usually placed in during use. It is only for the purpose of facilitating the description of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0049] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0050] The present utility model patent has been described above with reference to the accompanying drawings. Obviously, the implementation of the present utility model patent is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present utility model patent, or the direct application of the inventive concept and technical solution of the present utility model patent to other occasions without modification, are all within the protection scope of the present utility model.

Claims

1. A main board structure, characterized by, The utility model relates to a mainboard structure and a mainboard fixing method thereof, and relates to the technical field of computer hardware. The mainboard body (1) is provided with a slot hole (11) penetrating the thickness of the mainboard body (1), and the adapter plate (2) is located directly below the slot hole (11) and is welded and fixed with the mainboard body (1), and the slot hole (11) is used for passing through a capacitor (6) to connect the capacitor (6) with the adapter plate (2).

2. The motherboard structure of claim 1, wherein: The TOP surface of the adapter plate (2) is provided with a first adapter pad (21) at each of the four corners, each first adapter pad (21) is provided with a groove (22) extending inward from the edge of the adapter plate (2), and the side wall of the groove (22) is provided with a copper plating layer.

3. The motherboard structure of claim 2, wherein: The groove (22) is in the shape of a semicircular arc.

4. The motherboard structure of claim 2, wherein: The BOTTOM surface of the mainboard body (1) is provided with four second adapter pads (12), and the four second adapter pads (12) are arranged one by one corresponding to the four first adapter pads (21).

5. A motherboard structure as claimed in claim 4, characterized in that: The area of the second adapter pad (12) is larger than that of the first adapter pad (21).

6. The motherboard structure of claim 1, wherein: The diameter of the slot hole (11) is larger than that of the capacitor (6).

7. The motherboard structure of claim 1, wherein: The mainboard body (1) is provided with a plurality of mounting holes, and the mounting holes are used for passing through a fastener (3).

8. The motherboard structure of claim 1, wherein: The four edges of the adapter plate (2) are respectively provided with a glue layer (4), and the glue layer (4) is used for bonding and fixing the adapter plate (2) and the mainboard body (1).

9. A power supply device characterized by comprising: The utility model relates to a mainboard structure and a mainboard fixing method thereof, and relates to the technical field of computer hardware.

10. A power supply device as claimed in claim 9, characterized in that: The convex part (51) is provided with a threaded hole, the threaded hole and the mounting hole are arranged correspondingly, one end of the fastener (3) passes through the mounting hole to be embedded in the threaded hole.

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