Miniaturized PCB (printed circuit board) and miniaturized equipment
By drawing pads on the top and bottom layers of the PCB board and placing the LED indicator on the side, combined with the design of light guide pillars and light guide vias, the problems of PCB board miniaturization and indicator light inconvenience can be solved, achieving miniaturization and clear and bright indicator light.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-04-03
AI Technical Summary
Existing PCB boards are difficult to miniaturize and are not convenient for observing indicator light signals from outside the casing.
Pads are drawn on the top and bottom layers of the PCB board, and LED indicators are placed on the side. Combined with light guide pillars and light guide vias, miniaturization is achieved while ensuring that the indicator lights are clear and bright.
This enables the miniaturization of PCB boards and clear, bright indicator lights, improving design success rate and practicality.
Smart Images

Figure CN224083765U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic device technology, specifically to a miniaturized PCB board and a miniaturized device. Background Technology
[0002] Currently, microelectronic integrated circuits are developing rapidly, and more and more products require miniaturization. The size of the PCB is crucial to the overall product size. Regarding PCB size requirements, designers should select components with the smallest possible packages while meeting design requirements. Simultaneously, component layout and wiring should be as compact as possible without compromising performance, thereby reducing the PCB size and meeting the demands of miniaturized production. In particular, products using surface-mount LED indicators occupy a significant amount of space, and the indicator signals are difficult to observe from outside the casing, making them very inconvenient to use. Utility Model Content
[0003] The purpose of this invention is to overcome the problems of existing PCB boards being difficult to miniaturize and inconvenient to observe indicator light signals from outside the casing. This invention provides a miniaturized PCB board and a miniaturized device that achieves miniaturization, improves the clarity and brightness of the indicator lights, and greatly enhances practicality.
[0004] To achieve the above objectives, this utility model provides a miniaturized PCB board, which includes a PCB board body and a plurality of surface-mount LEDs disposed on the side of the PCB board body. The top and bottom layers of the PCB board body are provided with pads for soldering the surface-mount LEDs.
[0005] Preferably, the overall thickness of the PCB board body is less than the distance between the two solder pads.
[0006] The second aspect of this utility model provides a miniaturized device, which includes a product cavity. The product cavity has a cavity inside that accommodates the miniaturized PCB board as described above. The product cavity has multiple light guide holes, and each light guide hole has a light guide post that extends toward the surface-mount LED light and corresponds to it.
[0007] Preferably, the light guide post is fixed to the light guide hole by threaded fastening adhesive.
[0008] Preferably, the product's internal cavity is equipped with a mounting plate, which has multiple threaded holes. These threaded holes, in conjunction with positioning PCB board screws, allow the PCB board to be detachably fixed to the mounting plate.
[0009] Preferably, each surface-mount LED is coaxially arranged with its corresponding light guide post and light guide hole.
[0010] Preferably, the top of the product cavity has a PCB board mounting hole, which is sealed by the top cover plate.
[0011] According to the above technical solution, during PCB layout design, LED indicators are placed on the side of the PCB board, and pads are drawn on the top and bottom layers of the PCB board. The overall thickness of the PCB board is less than the distance between the two pads of the LED indicator to prevent short circuits and improve safety. At the same time, this design allows for both increased PCB board area and minimized PCB board size, solving the problem caused by excessively large PCB board areas during design, thereby improving the success rate of PCB board design. Attached Figure Description
[0012] Figure 1 This is an installation diagram of a miniaturized PCB board and miniaturized equipment provided by this utility model;
[0013] Figure 2 This is a partially enlarged view of the installation position of the miniaturized PCB board in the miniaturized device provided by this utility model.
[0014] Explanation of reference numerals in the attached figures
[0015] 1-Light guide hole 2-PCB board body
[0016] 3-Surface mount LED lights 4-Product housing
[0017] 5-Top cover plate; 6-Positioning PCB board screws
[0018] 7-Light Guide Column Detailed Implementation
[0019] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0020] In this utility model, unless otherwise stated, directional terms such as "top," "bottom," "inner," and "outer" in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.
[0021] See Figure 1 and Figure 2This utility model provides a miniaturized PCB board, which includes a PCB board body 2 and a plurality of surface-mount LEDs 3 disposed on the side of the PCB board body 2. The top and bottom layers of the PCB board body 2 are provided with pads for soldering the surface-mount LEDs 3. The overall thickness of the PCB board body 2 is less than the distance between the two pads.
[0022] By employing the above technical solution, during PCB layout design, LED indicators are placed on the side of the PCB board, and pads are drawn on the top and bottom layers of the PCB board. The overall thickness of the PCB board is less than the distance between the two LED indicator pads to prevent short circuits and improve safety. Simultaneously, this design allows for both increased PCB board utilization and minimized PCB board area, solving the problem of excessively large PCB board areas during design, thereby improving the success rate of PCB board design.
[0023] Meanwhile, this utility model also provides a miniaturized device, which includes a product housing 4. The product housing 4 has an internal cavity for accommodating the miniaturized PCB board described above. The product housing 4 has multiple light-guiding holes 1, each containing a light-guiding post 7. The light-guiding posts 7 extend towards and correspond one-to-one with the surface-mount LED lights 3. This ensures that the LED indicator lights are directly facing the light-guiding posts 7, allowing the light source to be stably output to the light-guiding posts 7, resulting in clear and bright indicator lights.
[0024] In this embodiment, in order to achieve the ideal sealing effect after installation and improve the installation stability of the light guide post 7 during use, preferably, the light guide post 7 is fixed to the light guide hole 1 by threaded fastening adhesive.
[0025] In this embodiment, in order to facilitate the installation and disassembly of the PCB board body 2, preferably, the product cavity 4 is provided with a mounting plate, and the mounting plate is provided with multiple threaded holes. The PCB board body 2 can be detachably fixed to the mounting plate by cooperating with the positioning PCB board screws 6 through the multiple threaded holes.
[0026] In addition, in order to ensure that the LED indicator lights are directly facing the light guide column, so that the light source can be stably output to the light guide column and the indicator lights are clear and bright, it is preferable to set each surface-mount LED light 3 coaxially with its corresponding light guide column 7 and light guide hole 1.
[0027] In this embodiment, to facilitate the installation or removal of the PCB board body 2 during assembly and maintenance, preferably, a PCB board mounting hole is provided at the top of the product cavity 4, and the PCB board mounting hole is sealed by the upper cover plate 5. In this way, the upper cover plate 5 can be removed by loosening the fixing bolts, so that the upper end of the product cavity 4 is open, providing sufficient operating space for operators to disassemble or install.
[0028] In summary, placing the LED indicator on the side of the PCB, with a pad on both the top and bottom layers of the PCB for LED control, saves design space. By positioning the LED directly opposite the light guide, the light source is stably directed towards the light guide, resulting in a clear and bright indicator that is easily observable from the outside. Therefore, this miniaturized PCB and device design is simple and convenient, does not increase manufacturing costs, is highly practical, and has a long service life.
[0029] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.
Claims
1. A miniaturized PCB board characterized in that, The miniaturized PCB board comprises a PCB board body (2) and a plurality of surface-mounted LED lamps (3) arranged on the side edges of the PCB board body (2), wherein the top layer and the bottom layer of the PCB board body (2) are both provided with pads for welding the surface-mounted LED lamps (3).
2. The miniaturized PCB board of claim 1, wherein, The overall thickness of the PCB board body (2) is less than the spacing between the two pads.
3. A miniaturized device, characterized in that, The miniaturized device comprises a product whole machine cavity (4), which forms a cavity for accommodating the miniaturized PCB board as claimed in claim 1 or 2 inside, and a plurality of light guide through holes (1) are arranged on the product whole machine cavity (4), and a light guide column (7) is arranged in each light guide through hole (1), which extends towards the surface-mounted LED lamp (3) and corresponds one-to-one.
4. The miniaturized device according to claim 3, characterized in that, The light guide column (7) is fixed in the light guide through hole (1) by a threaded fastening glue.
5. The miniaturized device according to claim 4, characterized in that, An installation plate is arranged inside the product whole machine cavity (4), a plurality of threaded holes are arranged on the installation plate, and the PCB board body (2) can be detachably fixed to the installation plate through cooperation of the threaded holes and positioning PCB board screws (6).
6. The miniaturized device according to claim 5, characterized in that, Each surface-mounted LED lamp (3) is coaxially arranged with the corresponding light guide column (7) and the light guide through hole (1).
7. The miniaturized device according to claim 6, characterized in that A PCB board mounting hole is arranged on the top of the product whole machine cavity (4), which seals the product whole machine cavity (4) through an upper cover plate (5).