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Laptop Cooling Pad With USB Hub

Oct 22, 2014

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Laptop Cooling Pad with 4-port USB Hubby amorarun on July 19, 2011 Table of Contents Laptop Cooling Pad with 4-port USB Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Intro: Laptop Cooling Pad with 4-port USB Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Step 1: Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Step 2: Make the holes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Step 3: De-soldering and soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Step 4: Hot Glue time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 3 5 6 9

Step 5: Final touch and testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Related Instructables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

http://www.instructables.com/id/Integrating-Laptop-Cooling-Pad-with-USB-Hub-with-/

Author:amorarunI'm a student at UniKL MIAT, Malaysia studying Aircraft Engineering Technology. I like to make things using the materials available with me already. Kinda still learning electronic through internet..Very much interested in Green energy production. Since I'm from India all my stuff are back home so only during semester holidays I try to make some things.

Intro: Laptop Cooling Pad with 4-port USB HubI have been using my laptop with a cooling pad and a 4-port USB hub but the problem is I don't like it being lying around blocking CD drive or other ports or vents moreover I didn't like carrying the cooling pad and the hub separately every where also I don't want to sacrifice a port just for using the cooling fan and need a switch to on/off the cooling fan according to my will. I thought of buying another cooling pad with an integrated 4 port hub with an option of external power for the hub but it was expensive (for me...) and I don't want the old one to be lying around. So here is what I have made... Things needed: # Cooling Pad (mine is cooler master) # Usb 4- port hub (the one that can fit inside the cooling pad) (Note ** the USB ports can be reused, if you have difficulties in de-soldering then I suggest you to buy 4 female USB ports and 4 Male USB ports as well) # Wires # 2 - LEDs (your choice of color, 3mm would be my preference) # 1 - Small Switch # 1 - Female Jack (which suits your wall wart to power the usb hub) # 1 - Resistor - 100 ohms # 1 - 1N4004 diodes Tools: Dremel or Hobby Knife or Drilling machine Soldering iron Solder De-soldering pump Hot glue gun + hot glue Screw driver Helping hands This project costs me almost nothing because I already had the materials with me. It shouldn't cost you more than 4-5$ if you already have the cooling pad and the hub. The cost might add up if you prefer to use extension cable (Refer: Note **) Disclaimer: Please deal with caution when using power tools. I'm not responsible if something goes wrong. Note: This is my first instructable so please bare with me if I made any mistakes.

Image Notes 1. My Cooler Master cooling pad :)

http://www.instructables.com/id/Integrating-Laptop-Cooling-Pad-with-USB-Hub-with-/

Step 1: Planning"If you fail to plan, you are planing to fail" I don't know who said it :) . Since mine is different from the ones you may have choose the location accordingly after looking into yours. In mine I have to remove all 12 screws hidden behind the rubber pad to open the cover, then I have chosen the sides to put the USBs with LED indicators ,the DC jack, the switch and the hub itself, shown in fig. 3 & 4. This configuration suites me well, you can choose whichever way you want it to be but the basics are still same. I have decided to keep 2 USBs at the back for mouse and headphone and other 2 USBs on my right side to use it for other devices, the DC jack goes at the back as well along with the corresponding LEDs. The red LED is going to be replaced with blue and kept towards the fan, where the light can be seen at the bottom. The USB hub has been opened and its up to you whether to remove the DC jack from the circuit and reuse it or to use another DC jack. Since I didn't had the wall wart which fits the DC jack in the hub, I decided to use another that fits and found the connecting point (shown in the fig.) for it, using the multimeter.

Image Notes 1. Screw #1 2. Screw #2 3. Screw #3

Image Notes 1. Have to remove the rubber to access the screws

http://www.instructables.com/id/Integrating-Laptop-Cooling-Pad-with-USB-Hub-with-/

Image Notes 1. Hub goes here 2. Switch for the cooling fan here 3. DC jack here, on the right LED to indicate that the DC Jack is getting power 4. #1 USB at top #2 USB at bottom Note: all are inside the selected area

Image Notes 1. #3 USB at left #4 USB at right Note: once again all indicated are within the selected area

Image Notes 1. Fan has been removed to avoid damage 2. :( I don't have a dedicated table or room to do my projects. I do it in our living room. 3. Until I get a table my old Mathematics book is my table :) 4. Here is my helping hand made from thick copper wire, using other instructable I've seen earlier. 5. Metal Cover removed and kept aside

Image Notes 1. Top cover of the USB hub 2. The circuit

http://www.instructables.com/id/Integrating-Laptop-Cooling-Pad-with-USB-Hub-with-/

Image Notes 1. This indicates the hub is connected to laptop or it is powered. I'm gonna replace it with a blue LED 2. These LEDs indicates the USB in use. These are going to be kept near the hub 3. Mini USB connector to the Laptop 4. DC Jack to power the hub if needed 5. The points where the external DC jack is going to be connected 6. All these ports will be removed and soldered again with wires in between

Step 2: Make the holesFirst mark the size of the hole to me made, for USB I would prefer the size of the body and I would insert it from the outside so the small metal tab like things are outside against the surface. For DC jack I cut out the whole size as shown in the last picture in this step, for the switch I just need the black thing to be out and the sliding distance. For LED I made a small hole just visible enough for the light to be seen. (Improvement: unfortunately the indicating LEDs aren't that bright enough to be seen while working on the laptop but it can be seen only when we are aligned with the holes direction. so either make a bigger hole or my idea to correct this would be to use fibre optical cable and insert a bit in the hole so the light can be seen outside) To make the hole you can do it in either way by drilling as many holes as possible within the hole area and then cutting the excess out using hobby or utility knife or by using dremel, I used the first method since I don't have a dremel.

Image Notes 1. My Drilling Machine

Image Notes 1. 2 USBs on the right side

http://www.instructables.com/id/Integrating-Laptop-Cooling-Pad-with-USB-Hub-with-/

Image Notes 1. 2 USBs at the back side

Image Notes 1. Switch for the cooling fan on the right side You can fix the position according to your needs

Image Notes 1. LED hole and DC jack hole

Step 3: De-soldering and solderingDe-Soldering Remove all the USB ports from the hub's circuit and keep it for later use, be careful while de-soldering the ports as there is a chance to break the thin connectors in the port. Also de-solder all the LEDs from the circuit. According to where you are going to fix, measure the length (make sure to leave some extra because we solder the ports when the wire is through the hole for better understanding see picture # 5) and cut wires for all the USBs and indication LEDs. Also cut wires for the DC jack and hub power LED. Note: As mentioned earlier if you have difficulties in De-soldering the USB ports from the hub's circuit then make an extension cable using a female USB port and male USB port. First solder the measured wires to the male USB and connect it to the hub, then bring the wire through the desired hole and solder the other end with female USB port. Soldering Now solder all the hub wires to the circuit in its respective place and indication LEDs. Now bring the hub wires through their respective holes and solder them with the USB ports make sure the wires are soldered in its appropriate place. (Note: solder the wires to the correct pin, in this we are just extending the connection from the circuit to the port so there shouldn't be any problem, when in doubt clarify with someone or me otherwise solder wires one by one). In order for the DC jack power on LED to not to work while the hub is powered by the USB we need to put a diode in series as shown i