Base shot package short circuit prevention structure, fan and electronic product

Abstract

The utility model provides a kind of base shot package prevents short circuit structure, including base shot package and PCBA board, the base shot package is set to the bottom of fan, for providing support;The PCBA board is circular ring, is installed on the base shot package;The inner ring and outer ring of circular ring the PCBA board are equipped with support piece;The support piece provides support to PCBA board by setting height, and interval the base shot package with PCBA board. Wherein, the inner ring of circular ring the PCBA board is equipped with a circle support piece;The outer ring of circular ring the PCBA board is interval equipped with multiple arc support piece;The utility model is through in the inner ring and outer ring of circular ring PCBA board setting support piece, and using the height formed by support piece makes PCBA board and base shot package keep interval, to effectively avoid direct contact between the two, solve the problem that circuit board and fan base are prone to short circuit in prior art.

Description

Technical Field

[0001] This utility model relates to the field of fan base technology, specifically to a base injection anti-short circuit structure, a fan, and electronic products. Background Technology

[0002] As the performance of electronic products continues to improve, the integration of their internal components is becoming increasingly sophisticated, leading to a greater reliance on heat dissipation systems. Fans, as commonly used heat dissipation components in electronic products, typically need to be mounted on a circuit board via a base. To ensure the stability and safety of the fan during operation, reliable support and insulation measures must be provided between the circuit board and the fan base to prevent electrical short circuits or mechanical interference.

[0003] In existing technologies, a common method is to attach insulating stickers between the circuit board and the fan base, or to add insulating components to the base structure to achieve isolation. However, this method has some shortcomings in the manufacturing process: on the one hand, insulating stickers require additional material costs and rely on manual operation during the application process, increasing the labor input in the production process; on the other hand, insulating stickers are prone to aging, falling off, or shifting during long-term use, leading to a decrease in the isolation effect and thus affecting the reliability of the insulation between the fan and the circuit board.

[0004] In view of the above, in order to overcome the above technical problems, this utility model designs a base injection anti-short circuit structure, a fan and electronic products, thus solving the above technical problems. Summary of the Invention

[0005] The technical objective of this invention is to provide a short-circuit protection structure for a base injection molding process, a fan, and electronic products, thereby solving the problems of complex assembly and poor long-term reliability associated with existing technologies that rely on insulating stickers for isolation between the circuit board and the fan base. To achieve the above-mentioned technical objectives, this utility model provides the following technical solution: This utility model provides a base injection molding anti-short circuit structure, comprising: The base is installed at the bottom of the fan to provide support; PCBA board, the PCBA board is circular and is mounted on the base injection molding; the inner and outer rings of the circular PCBA board are provided with support members; The support member provides support to the PCBA board by setting its height, and spacees the base package from the PCBA board.

[0006] Furthermore, the inner ring of the annular PCBA board is provided with a ring of support members; the outer ring of the annular PCBA board is provided with multiple arc-shaped support members at intervals.

[0007] Furthermore, the support includes a support pad and a support solder, the support pad being used to provide the position of the solder, the support pad being disposed on the side of the PCBA board facing the base injection molding; the support solder covering the surface of the pad.

[0008] Preferably, the height of the supporting solder is 0.08mm-0.1mm.

[0009] Preferably, the width of the support pad is 0.5 mm.

[0010] Preferably, the support pad is a signal-free pad.

[0011] This application also provides a fan, including the base injection anti-short circuit structure described in any of the above claims, wherein the base injection anti-short circuit structure is mounted on the central shaft of the fan, and fan blades are also connected to the central shaft, wherein the inner ring of the fan blades is provided with a stator injection that cooperates with the base injection.

[0012] This application also provides an electronic product including the aforementioned fan.

[0013] The beneficial effects of this utility model are as follows: 1. This application solves the problem of short circuits between the circuit board and the fan base in the prior art by setting support members on the inner and outer rings of the annular PCBA board and using the height formed by the support members to maintain a distance between the PCBA board and the base injection molding. This application uses the support members as positioning and insulation support points, ensuring the electrical safety and structural stability of the fan operation without adding additional insulation materials.

[0014] 2. This application also provides a ring of support members on the inner ring of the PCBA board and arc-shaped support members arranged at intervals on the outer ring. Through the combination of the inner and outer rings, uniform support can be provided for the PCBA board at multiple positions, avoiding board warping or deformation caused by single-point force, thereby further improving the stable gap between the PCBA board and the base injection molding and enhancing the overall reliability of the structure. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] The above and other aspects of the present invention will now be described by way of example only, with reference to the accompanying drawings, in which: Figure 1This is a schematic diagram of the present invention; Figure 2 This is a cross-sectional view of the utility model.

[0017] In the diagram: 1. Base injection molding; 2. PCBA board; 3. Support component; 4. Central shaft; 5. Fan blade; 6. Stator injection molding. Detailed Implementation

[0018] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0019] Example 1: like Figure 1 and Figure 2 As shown, this embodiment provides a short-circuit prevention structure for a base injection molding package, including a base injection molding package 1 and a PCBA board 2. The base injection molding package 1 is disposed at the bottom of the fan to provide stable support for the fan. The PCBA board 2 has a circular structure and is mounted on the base injection molding package 1. Support members 3 are provided at both the inner and outer rings of the circular PCBA board 2. The height of the support members 3 maintains a gap between the PCBA board 2 and the base injection molding package 1, thereby effectively preventing the bottom surface of the PCBA board 2 from contacting the base injection molding package 1 and achieving the effect of preventing short circuits.

[0020] Example 2: Based on Example 1, the inner ring of the PCBA board 2 is configured with a continuous ring of support members 3, forming a ring support. Multiple arc-shaped support members 3 are spaced apart on the outer ring of the PCBA board 2. This combination of continuous inner ring support and spaced outer ring support creates a uniform and stable support structure throughout the entire PCBA board 2, further improving the isolation between the PCBA board 2 and the base injection molding 1, and preventing warping or deformation of the PCBA board 2 due to localized stress.

[0021] Example 3: Based on Embodiment 1 or 2, the support member 3 consists of support pads and support solder covering the surface of the pads. The support pads are arranged on the side of the PCBA board 2 facing the base package 1, providing a solder attachment position. After SMT tinning, the support solder covers the surface of the pads, forming a stable support height. In this embodiment, specifically, the height of the support solder is controlled at 0.1mm to ensure effective spacing without affecting the fan assembly accuracy due to excessive height.

[0022] Furthermore, the width of the support pad is 0.5mm to balance support strength and process feasibility. The support pad is a non-signal pad and does not perform any circuit function, thus avoiding any impact on circuit routing. Through this design, the height of the pads and solder can be used to achieve a reliable spacing between the PCBA board 2 and the base package 1, replacing traditional insulating pads, improving the simplification of the manufacturing process and the reliability of long-term use. Example 4: Based on any of the above embodiments, this embodiment also provides a fan, including a base-mounted injection molding anti-short-circuit structure. The base-mounted injection molding anti-short-circuit structure is mounted on the central shaft 4 of the fan, and the central shaft 4 is also connected to fan blades 5. The inner ring of the fan blades 5 is provided with a stator injection molding 6 that mates with the base-mounted injection molding 1, thereby forming a complete fan structure. During fan operation, a safe gap is maintained between the PCBA board 2 and the base-mounted injection molding 1, effectively avoiding short-circuit problems and ensuring stable fan operation.

[0023] Example 5: Based on Example 4, an electronic product includes a fan. The electronic product can be a laptop, server, mobile terminal, or other device requiring heat dissipation. By applying the aforementioned fan to the electronic product, the reliability of the overall cooling system can be effectively improved, reducing the risk of failure due to short circuits.

[0024] Although one or more exemplary embodiments of this disclosure have been described with reference to the accompanying drawings, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope of this disclosure as defined by the appended claims.

[0025] Although the present disclosure has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to the embodiments of the present disclosure, which will be obvious to those skilled in the art. Therefore, such modifications or improvements made without departing from the spirit of the present disclosure are all within the scope of protection claimed by the present disclosure.

[0026] The above description is merely illustrative of this disclosure, and modifications may be made to the present invention in light of the above detailed description. The terminology used in the appended claims should not be construed as limiting the present invention to the specific embodiments disclosed in the specification. Rather, the scope of the present invention will be fully defined by the appended claims, which will be interpreted according to established principles of claim interpretation.

Claims

1. A base-mounted injection molding anti-short-circuit structure, characterized in that, include: The base assembly (1) is located at the bottom of the fan to provide support; PCBA board (2), the PCBA board (2) is circular and is installed on the base injection package (1); the inner and outer rings of the circular PCBA board (2) are provided with support members (3). The support member (3) provides support to the PCBA board (2) by setting the height and spacing the base injection package (1) and the PCBA board (2).

2. The base injection molding anti-short circuit structure according to claim 1, characterized in that, The inner ring of the annular PCBA board (2) is provided with a ring of support members (3); the outer ring of the annular PCBA board (2) is provided with multiple arc-shaped support members (3) at intervals.

3. The base injection molding anti-short circuit structure according to claim 1, characterized in that, The support member (3) includes a support pad and a support solder. The support pad is used to provide the position of the solder. The support pad is disposed on the side of the PCBA board (2) facing the base package (1). The support solder covers the surface of the pad.

4. The base injection molding anti-short circuit structure according to claim 3, characterized in that, The height of the supporting solder is 0.08mm-0.1mm.

5. The base injection molding anti-short circuit structure according to claim 3, characterized in that, The width of the support pad is 0.5 mm.

6. The base injection molding anti-short circuit structure according to claim 3, characterized in that, The support pad is a signal-free pad.

7. A fan, characterized in that: The system includes the base injection anti-short circuit structure according to any one of claims 1 to 6, wherein the base injection anti-short circuit structure is installed on the central shaft (4) of the fan, and the central shaft (4) is also connected to the fan blade (5), and the inner ring of the fan blade (5) is provided with a stator injection (6) that cooperates with the base injection (1).

8. An electronic product, characterized in that, Includes the fan as described in claim 7.

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