PCB assembly with metal case.
Typical Metal enclosures: stainless steel, aluminums,
Production process type: metal stamping, die casting,
Following is a case study.
Assembly of the module IPU
Prerequisites
To begin the assembly, you must have:
– A PCB card type IPU (length 80 mm) assembled (see document GUIDE 3: ASSEMBLY OF THE
PCB CARD TYPE IPU)
– A Nanopi NEO plus 2 already prepared (see document GUIDE 1: ASSEMBLY AND INSTALLATION OF THE NANOPI)
– An enclosure of length 80 mm
– A cover plate type 1
– A cover plate type 2
– 8 screws M3*8 T10 black color
– A rivet diameter 3.2 mm, length 16 mm
![](http://beta.fumax.net.cn/wp-content/uploads/2023/04/image-9.png)
Figure 1: Necessary components
1. Nanopi
Plug the Nanopi on the PCB card
2. Enclosure
1) Take the enclosure
2) Make a hole diameter 4 mm at the coordinates indicated on the picture
![PCBA + METAL box4](https://www.fumaxtech.com/uploads/PCBA-+-METAL-box4.jpg)
Figure 2: Nanopi NEO Plus 2
![PCBA + METAL box5](https://www.fumaxtech.com/uploads/PCBA-+-METAL-box5.jpg)
Figure 3: PCB card type IPU
![PCBA + METAL box6](https://www.fumaxtech.com/uploads/PCBA-+-METAL-box6.jpg)
Figure 4: Plug the Nanopi on the PCB card
3) Place the cover plate type 2 and maintain it in position using four screws M3*8 T10 black color
![PCBA + METAL box7](https://www.fumaxtech.com/uploads/PCBA-+-METAL-box7.jpg)
Figure 5: Make a hole diameter 4 mm
Enclosure 80 mm
Cover plate type 2
Screw M3*8 T10
black color
Diameter 4 mm
37.3 mm
22.9 mm
4) Insert the PCB card in the second slot of the enclosure
![PCBA + METAL box8](https://www.fumaxtech.com/uploads/PCBA-+-METAL-box8.jpg)
Figure 6: Place the cover plate type 2
5) Take the cover plate type 1 and place it at the other side of the enclosure
NOTE: Place the flashing LED first
6) Maintain the cover plate with four screws M3*8 T10 black color
WARNING: Respect the direction shown in figure 9. Else, you will not be able to use the rivet.
Figure 10: Place the cover plate type 1
![PCBA + METAL box9](https://www.fumaxtech.com/uploads/PCBA-+-METAL-box9.jpg)
Figure 7: Insert the PCB card in the second slot of the enclosure (1)
![PCBA + METAL box10](https://www.fumaxtech.com/uploads/PCBA-+-METAL-box10.jpg)
Figure 8: Insert the PCB card in the second slot of the enclosure (2)
![PCBA + METAL box11](https://www.fumaxtech.com/uploads/PCBA-+-METAL-box11.jpg)
Figure 9: Insert the PCB card in the second slot of the enclosure (3)
![PCBA + METAL box12](https://www.fumaxtech.com/uploads/PCBA-+-METAL-box12.jpg)
Cover plate type 1
3. Rivet
1) Take the assembled module
2) Place the rivet inside the hole of the enclosure
3) Use the rivet
![PCBA + METAL box13](https://www.fumaxtech.com/uploads/PCBA-+-METAL-box13.jpg)
Figure 11: Take the assembled module
![PCBA + METAL box14](https://www.fumaxtech.com/uploads/PCBA-+-METAL-box14.jpg)
Figure 12: Place the rivet
![PCBA + METAL box15](https://www.fumaxtech.com/uploads/PCBA-+-METAL-box15.jpg)