Charger PCBA with high space utilization rate
Patent Information
- Application Number
- CN202520511115.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-22
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-22
AI Technical Summary
目前在充电器行业中，在设计电路板时都是将EM I电路与主电路设计在同一块PCBA板上，导致PCBA体积大，空间利用率低，成本高
[0006]本实用新型的有益效果为：本实用新型提供一种高空间利用率的充电器PCBA，将其安装到充电器壳体中时，主电路板和EM I电路板可通过螺丝固定在充电器壳体中，也可以在主电路板的避空区域上设置支撑柱，通过螺丝将EM I电路板安装在支撑柱上，从而将EM I电路板定位在主电路板的避空区域上。通过对第一电子器件层上的电子器件位置进行合理布局，从而在第一电子器件层上预留出EM I电路板的容纳空间，将EM I电路板布置在避空区域上，利用了避空区域的空间，有效地缩小了PCBA的体积，提高了PCBA的空间利用率，降低了PCBA的制作成本。
Smart Images
Figure CN223978453U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of charger technology, and more particularly to a charger PCBA with high space utilization. Background Technology
[0002] PCBA is short for Printed Circuit Board Assembly, which means the entire process of a bare PCB board undergoing surface mount technology (SMT) or DIP component insertion. Currently, in the charger industry, the EMI circuit and the main circuit are designed on the same PCBA board, resulting in a large PCBA size, low space utilization, and high cost. Summary of the Invention
[0003] The problem to be solved by this utility model is to provide a charger PCBA with high space utilization, which reduces the size, improves space utilization, and reduces costs.
[0004] To solve the above-mentioned technical problems, a high space utilization charger PCBA provided by this utility model is provided, which includes a main circuit board and an EM I circuit board. The main circuit board includes a PCB and a first electronic device layer arranged on one side of the PCB. The first electronic device layer has a clearance area that can accommodate the EM I circuit board. The EM I circuit board is arranged on the clearance area. The EM I circuit board and the main circuit board are electrically connected by wires.
[0005] Preferably, a second electronic device layer is arranged on the other side of the main circuit board. The second electronic device layer contains a number of power semiconductors, and the power semiconductors are packaged in TO-263.
[0006] The beneficial effects of this utility model are as follows: This utility model provides a charger PCBA with high space utilization. When installed in the charger housing, the main circuit board and the EMI circuit board can be fixed in the charger housing with screws, or a support column can be set in the clearance area of the main circuit board, and the EMI circuit board can be installed on the support column with screws, thereby positioning the EMI circuit board in the clearance area of the main circuit board. By rationally arranging the positions of the electronic components on the first electronic component layer, space is reserved on the first electronic component layer to accommodate the EMI circuit board. The EMI circuit board is arranged in the clearance area, utilizing the space of the clearance area, effectively reducing the volume of the PCBA, improving the space utilization of the PCBA, and reducing the manufacturing cost of the PCBA. Attached Figure Description
[0007] Figure 1 A schematic diagram illustrating the external structure of this utility model is provided.
[0008] Figure 2 An exploded view of the present invention is shown.
[0009] Figure 3 A cross-sectional view of the present invention is shown.
[0010] Figure 4 A schematic diagram illustrating the external structure of the main circuit board of this utility model is shown.
[0011] The reference numerals are as follows: Main circuit board 1, PCB 10, First electronic device layer 11, Clearance area 12, Second electronic device layer 13, Power semiconductor 130, EMI circuit board 2. Detailed Implementation
[0012] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure.
[0013] Based on the embodiments described in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.
[0014] refer to Figure 1-4 .
[0015] This utility model provides a charger PCBA with high space utilization, including a main circuit board 1 and an EM I circuit board 2. The main circuit board 1 includes a PCB 10 and a first electronic device layer 11 arranged on one side of the PCB 10. The first electronic device layer 11 has a clearance area 12 that can accommodate the EM I circuit board 2. The EM I circuit board 2 is arranged on the clearance area 12, and the EM I circuit board 2 and the main circuit board 1 are electrically connected by wires.
[0016] Its working principle is as follows: when installed into the charger housing, the main circuit board 1 and the EMI circuit board 2 can be fixed in the charger housing with screws, or a support post can be set on the clearance area 12 of the main circuit board 1, and the EMI circuit board 2 can be installed on the support post with screws, thereby positioning the EMI circuit board 2 in the clearance area of the main circuit board 1. By rationally arranging the positions of the electronic components on the first electronic component layer 11, space is reserved on the first electronic component layer 11 to accommodate the EMI circuit board 2. The EMI circuit board 2 is arranged on the clearance area 12, utilizing the space of the clearance area 12, effectively reducing the volume of the PCBA, improving the space utilization of the PCBA, and reducing the manufacturing cost of the PCBA.
[0017] Based on the above embodiments, a second electronic device layer 13 is arranged on the other side of the main circuit board 1. The second electronic device layer 13 includes a plurality of power semiconductors 130, and the power semiconductors 130 are packaged in TO-263. Because the power semiconductors in existing charger PCBAs use through-hole TO-220 packages, heat dissipation requires complex processing, safety distances are difficult to manage, automated production is not possible, requiring a large amount of manual labor, errors are prone to occur, and production efficiency is low. By using a surface-mount TO-263 package for the power semiconductors 130, heat dissipation can be directly achieved using the PCB 10, automated processing can be implemented, the heat dissipation layout is more reasonable, safety electrical distances do not require complex processing, the error rate in manual production is reduced, production efficiency is improved, and costs are reduced.
[0018] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A high space utilization charger PCBA, characterized in that, The main circuit board comprises a PCB, a first electronic device layer arranged on one side of the PCB, and a hollow area on the first electronic device layer for accommodating the EMI circuit board.
2. The high space utilization charger PCBA of claim 1, wherein, A second electronic device layer is arranged on the other side of the main circuit board, and the second electronic device layer comprises a plurality of power semiconductors in the form of TO-263.