sae_battery_segment_manufacture_assembly
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sae_battery_segment_manufacture_assembly [2023/05/13 04:50] – wei | sae_battery_segment_manufacture_assembly [2023/06/06 18:58] (current) – wei | ||
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=====CNSI Innovation Workshop and Microfluidics Lab Battery Segment Manufacturing & Assembly Safe Operating Procedures===== | =====CNSI Innovation Workshop and Microfluidics Lab Battery Segment Manufacturing & Assembly Safe Operating Procedures===== | ||
- | Last Updated: | + | Last Updated: |
This SOP provides a guide to safely manufacture and assemble battery segments of the GR23 electrical vehicle. Some of the information is compiled from the following sources. | This SOP provides a guide to safely manufacture and assemble battery segments of the GR23 electrical vehicle. Some of the information is compiled from the following sources. | ||
* [[https:// | * [[https:// | ||
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* Machining of insulation panels | * Machining of insulation panels | ||
* Assembly of Enepaq modules within insulation | * Assembly of Enepaq modules within insulation | ||
- | * Wiring voltage taps, thermistor connectors, and other connections | ||
- | * Sealing up battery segment and finishing assembly | ||
====Safety Considerations==== | ====Safety Considerations==== | ||
Line 25: | Line 23: | ||
*Electrical Insulating PPE | *Electrical Insulating PPE | ||
*Referencing this [[https:// | *Referencing this [[https:// | ||
- | * class 00 gloves | + | * electrically insulating |
* nonconductive safety glasses | * nonconductive safety glasses | ||
- | * insulated tools | + | * [[https:// |
* long sleeve shirt & pants | * long sleeve shirt & pants | ||
* closed toed shoes | * closed toed shoes | ||
- | * insulating mat | + | * [[https:// |
- | * insulating | + | * arc-flash |
*Workspace | *Workspace | ||
*As mentioned above, ensure that no non-insulated tools can fall across battery terminals or be accidentally used (remove all non-insulated tools that are magnetically attached above the workbench) | *As mentioned above, ensure that no non-insulated tools can fall across battery terminals or be accidentally used (remove all non-insulated tools that are magnetically attached above the workbench) | ||
+ | * Workspace and ground should be covered with electrically insulating mats | ||
*No machining of metals should occur while battery segment terminals are exposed | *No machining of metals should occur while battery segment terminals are exposed | ||
*Machining Fiberglass | *Machining Fiberglass | ||
*Machining fiberglass can produce fine resin and glass particles that can be harmful if inhaled | *Machining fiberglass can produce fine resin and glass particles that can be harmful if inhaled | ||
*Keep particles contained in CNC router enclosure | *Keep particles contained in CNC router enclosure | ||
+ | *Use vacuum attachment | ||
*Wear masks | *Wear masks | ||
*Wipe up particles often | *Wipe up particles often | ||
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====Battery Segment Design==== | ====Battery Segment Design==== | ||
- | + | {{: | |
- | ... | + | 26s5p li-ion cells per segment comprised of Enepaq 1x5p Sony VTC6 modules |
====Necessary Materials, Tools, and Equipment==== | ====Necessary Materials, Tools, and Equipment==== | ||
- | Each printer has a honeycomb bed that is good for general laser cutting and engraving. The honeycomb bed is meant to support the part without damaging the bed underneath by the laser; the honeycomb bed should be used when making through cuts. If needed, parts may be mounted on the bed using magnets | + | |
- | + | *Referencing this [[https:// | |
- | ====Cutting with the Trotec Laser Cutter==== | + | * electrically insulating class 00 gloves |
- | - **Turn the printer on** with the power switch in the left back corner. Allow the printer to initialize, the bed will go to the bottom position. | + | * nonconductive safety glasses |
- | - **Place material on bed**. Larger parts should be placed over the honeycomb bed but, if your part is too small, you can lower the bed, remove the honeycomb barrier, and secure a piece of acrylic to the bed with magnets to place your part on top of. | + | * insulated |
- | - **Focus printer** on material by using the focusing tool. Place the focusing tool on the edge of the laser head and raise the bed until the tool either touches the material or falls off. | + | * long sleeve shirt & pants |
- | - If cutting very thick material(> | + | * closed toed shoes |
- | - **Open CorelDraw** and upload your .DXF or .PDF file using the folder icon in the top left corner. Alternatively, you can use CorelDRAW to outline your cut. | + | * electrically insulating mat |
- | | + | * arc-flash face shield |
- | - Features being **cut should be in RGB Red and set to “hairline” thickness.** Features being **engraved should be RGB Black.** When dragging a color over from the right hand menu, a solid-colored box will indicate that the entire | + | |
- | | + | *Epoxy for assembling panels |
- | - Choose the **correct material properties** from the menus | + | *Wires & solder |
- | - New material recipes can be created in Job Control | + | |
- | - Make sure that **“minimize to jobsize”** and **“cut inner geometries first”** are selected. | + | |
- | - Click the JC (job control) button. \\ {{:tools: | + | |
- | - Make sure that **“Print to file”** and **“Single file”** are selected and then click print. Save your file to the desktop. | + | |
- | - Job Control will now open. Ignore any “empty” error messages. Drag your file from the jobs menu on the right hand side to the preview plate on the left. **Connect to the printer** by clicking the USB icon. | + | |
- | | + | |
- | - The crosshairs in Job Control indicate the position of the laser on the bed. Make sure the zoom is set to “Fit to plate”. Drag the icon of your drawing in the preview plate so that the **upper left corner is at the crosshairs.** \\ {{: | + | |
- | | + | |
- | - If you want to use Nitrogen instead of air for the air assist, turn both valves on the right back of the printer to Nitrogen. Make sure you turn off the Nitrogen regulator valve after each print as to not waste Nitrogen. | + | |
- | | + | |
- | - If everything is OK, click the play button and your part will begin to print. | + | |
- | - **YOU MUST NOT LEAVE WHILE PART IS BEING CUT AS FIRES COULD OCCUR** | + | |
- | | + | |
- | - **Turn off the printer** and close the lid. The computer should be left on. | + | |
- | ====Troubleshooting the Trotec Printer==== | + | |
- | * If JobControl will not allow you to drag your file onto the build plate, either “minimize to job size'' | + | |
- | * Double check that your drawing is 24” x 11.99” in CorelDRAW | + | |
- | * In Job Control, go to the “plate” dropdown menu, “plate setup”, and make sure the plate is set to 24” x 11.99” and “fit to plate” is selected. | + | |
- | * Make sure that cuts are hairline thickness. | + | |
- | * If the PC will not connect to JobControl after clicking the USB button try restarting JobControl or turning the printer off and back on after 5 sec. | + | |
- | * If the jobs menu disappears from the right side of Job Control, you can get it back under the “view” dropdown. | + | |
- | + | ||
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+ | ====Machining of insulation panels==== | ||
+ | - Fixture panels, program cam, and set up tools on ShopBot Router referencing [[http:// | ||
+ | {{: | ||
+ | *Set up vacuum attachment and wear masks to minimize inhalation of fine fiberglass particles | ||
+ | - File edges of panels to remove sharp glass fibers | ||
+ | ====Assembly of Enepaq modules within insulation==== | ||
+ | - Insert modules with correct polarities and use epoxy to bond base and side panels of segment | ||
+ | {{: | ||
+ | - **Wear proper PPE (listed in safety considerations section); those without PPE should remain five feet away** and connect modules together using bolts and busbars | ||
+ | * **Cover work surface and ground with electrically insulating mat and use insulated tools** | ||
+ | * Attach voltage taps under bolt heads using solder if necessary (onto copper washers) | ||
+ | * Attach temperature sensing wires to module xr connector | ||
+ | - Route wires through holes in top panel | ||
+ | - Connect voltage taps carefully and avoid short circuiting any modules | ||
+ | {{: | ||
+ | - Bond top panels to enclose segment | ||
+ | {{: | ||
sae_battery_segment_manufacture_assembly.1683953400.txt.gz · Last modified: 2023/05/13 04:50 by wei