Created Blower Harness (#1317)

docs/purchasing/numbering-schema.rst

@@ -29,6 +29,11 @@ Currently proposed (incomplete) schema is as follows::
         * mh - hardware
     * c - cosmetic
         * cs - stickers, safety labels
+    * t - tools
+        * te - tools, electrical
+        * tm - tools, mechanical
+        * tp - tools, pneumatic
+        * tc - tools, cosmetic
 * descriptor - short alphanumeric descriptor, preferably around 4-5 characters long
 
 **Optional section:**

docs/purchasing/parts.json

@@ -101,6 +101,57 @@
       }
     ]
   },
+  {
+    "pn": "ec-mega2x1",
+    "notes": "Mega-Fit 2x1",
+    "manufacturer": "Molex",
+    "mpn": "1716920102",
+    "avg_price": 0.47,
+    "price_unit": "",
+    "sources": [
+      {
+        "supplier": "DigiKey",
+        "spn": "WM10385-ND",
+        "price": 0.47,
+        "price_units": 1,
+        "url": "https://www.digikey.com/en/products/detail/molex/1716920102/4515271"
+      }
+    ]
+  },
+  {
+    "pn": "ec-micro1x4",
+    "notes": "Micro-Fit 1x4",
+    "manufacturer": "Molex",
+    "mpn": "0436450408",
+    "avg_price": 0.62,
+    "price_unit": "",
+    "sources": [
+      {
+        "supplier": "DigiKey",
+        "spn": "WM13985-ND",
+        "price": 0.62,
+        "price_units": 1,
+        "url": "https://www.digikey.com/en/products/detail/molex/0436450408/4481616"
+      }
+    ]
+  },
+  {
+    "pn": "ee-blower-tkfan",
+    "notes": "TKFAN Blower 12V",
+    "manufacturer": "TKFAN",
+    "mpn": "BA7050H12B",
+    "avg_price": 35.00,
+    "price_unit": "",
+    "sources": [
+      {
+        "supplier": "TKFAN",
+        "spn": "BA7050H12B",
+        "price": 35.00,
+        "price_units": 1,
+        "url": "https://www.alibaba.com/product-detail/BA7050H12B-12V-high-pressure-and-high_1600308159014.html"
+      }
+    ]
+  },
   {
     "pn": "ew-shrink3",
     "notes": "Shrink tubing, black, 3mm diameter",
@@ -219,5 +270,22 @@
         "url": "https://www.digikey.com/en/products/detail/remington-industries/24UL1007STRKIT10COLOR100/11614276"
       }
     ]
+  },
+  {
+    "pn": "te-microfit-crimper",
+    "notes": "Micro-Fit 3.0 contact crimp tool",
+    "manufacturer": "Molex",
+    "mpn": "0638190000",
+    "avg_price": 409.26,
+    "price_unit": "",
+    "sources": [
+      {
+        "supplier": "Digikey",
+        "spn": "WM9022-ND",
+        "price": 409.26,
+        "price_units": 1,
+        "url": "https://www.digikey.com/en/products/detail/molex/0638190000/1873800"
+      }
+    ]
   }
 ]

docs/wiring/blower_TK_BA7050H12B.rst

@@ -0,0 +1,44 @@
+.. _Blower Harness:
+
+Blower Harness for TKFAN BA7050H12B
+======================
+
+.. csv-table:: **BOM**
+   :widths: 5, 60, 5, 5, 5, 10, 10, 10
+   :header-rows: 1
+   :delim: 0009
+   :file: ./blower_TK_BA7050H12B.bom.tsv
+
+.. image:: blower_TK_BA7050H12B.png
+  :width: 800
+  :alt: Wiring diagram
+
+You will need all the tools listed.
+
+* Using items from above BOM as well as:
+   * 3mm heat shrink tubing [:ref:`ew-shrink3`]
+   * 5mm heat shrink tubing [:ref:`ew-shrink5`]
+   * Heat gun
+   * Molex Micro-Fit 3.0 Crimper [:ref:`te-microfit-crimper`]
+   * Wire Strippers
+   * Soldering iron
+   * Solder
+* Instructions:
+   #. Cut 3 pieces of the 5mm heat shrink, 15mm long each.
+   #. Thread the 5mm heat shrink onto the the entire bundle of 4 wires on the blower.  Do not shrink the heat shrink yet.
+   #. Insert the 2x pre-crimped Mega-Fit wires into the Megafit 2x2 housing.
+   #. Do a gentle pull test to confirm proper seating of the contacts.
+   #. Cut the cable at a length of 50mm from the connector.
+   #. Strip 5mm of insulation from the end of the pre-crimped wires and from the ends of the red and black pigtails of the blower.
+   #. Cut 2 pieces of 3mm heat shrink, 15mm long.
+   #. Take the 2 pieces of heat shrink and slide one each onto the red and black wires of the blower.
+   #. Solder the red and black wires to the Mega-Fit connector cables according to the diagram (pin 1 on the Mega-Fit connector is indicated by a stripe on the connector body).
+   #. Slide the heat shrink over the soldered portion and use the heat gun to shrink them in place.
+   #. Strip the insulation from the blue pigtail of the blower, using the Micro-Fit crimp contact as a guide for the legth of insulation to strip.
+   #. Using the micro-fit crimper, crimp the contact onto the end of the blue wire.
+   #. Insert the contact and wire into the micro-fit connector housing according to the diagram.
+   #. Do a gentle pull test to confirm proper seating of the contacts.
+   #. On the yellow blower wire, cut off any uninsulated portion from the end of the wire and place a 5mm long piece of 3mm heat shrink tubing on the end and heat shrink it in place.
+   #. Distribute the 5mm heat shrink tubing evenly along the harness bundle and shrink them with the heat gun.
+
+Total price: USD 4.00

docs/wiring/blower_TK_BA7050H12B.yml

@@ -0,0 +1,68 @@
+connectors:
+  X1:
+    pn: ee-blower-tkfan                         # RW part number from purchasing JSON file
+    type: TKFAN 12V Blower with Pigtails        #component type
+    pincount: 4                                      # number of pins in the connector
+    pinlabels: [-, +, FG, PWM]                # names for the signal on the connector
+    mpn: BA7050H12B                                  # manufacturer part number
+    manufacturer: TKFAN                              # manufacturer
+
+  X2:
+    pn: ec-mega2x1
+    pincount: 2
+    pinlabels: [GND, +12V]
+    type: Mega-Fit 2x1
+    subtype: female
+    mpn: 1716920102
+    manufacturer: Molex
+    additional_components:                           # defines additional components such as contacts
+      -
+        type: crimp                                    # additional component type
+        subtype:  Molex Pre-crimped Mega-Fit   # additional component name
+        qty: 1
+        qty_multiplier: populated                      # this multiples by the number of connector instances for the BOM
+        manufacturer: Molex                            # additional component manufacturer
+        mpn: 0797582038                                # additional component part number
+        pn: ew-pre2                  # RW part number
+
+  X3:
+    pn: ec-micro1x4
+    pincount: 4
+    pinlabels: [+5V, PWM, EN, GND]
+    type: Micro-Fit 1x4
+    subtype: female
+    mpn: 0436450408
+    manufacturer: Molex
+    additional_components:                           # defines additional components such as contacts
+      -
+        type: crimp                                    # additional component type
+        subtype:  Molex Micro-Fit 3.0 Female Crimp Contact 20-24awg   # additional component name
+        qty: 1
+        qty_multiplier: populated                      # this multiples by the number of connector instances for the BOM
+        manufacturer: Molex                            # additional component manufacturer
+        mpn: 43030-0002                                # additional component part number
+        pn: ec-microfit-f-crimp-20-24awg                  # RW part number
+
+
+cables:
+  W1:
+    pn: included-with-blower
+    wirecount: 4
+    type: Blower Built-in Pigtails
+    mpn: N/A
+    manufacturer: N/A
+    # more cable parameters:
+    length: 350 mm
+    gauge: 20 AWG
+    show_equiv: true # auto-calculate AWG equivalent
+    colors: [BK, RD, YE, BU]
+
+connections:
+  -
+    - X1: [1,2]
+    - W1: [1,2]
+    - X2: [1,2]
+  -
+    - X1: [4]
+    - W1: [4]
+    - X3: [2]

docs/wiring/index.rst

@@ -8,3 +8,4 @@ Wiring Documentation
 
    power_entry
    oxygen_sensor
+   blower_TK_BA7050H12B