Our hands and especially fingers the first to suffer from the cold and most in need of protection from the environment. But how we be able to warm our hands, keeping the mobility and sensitivity of the fingers?
I did it with the help of carbon fiber tape. Carbon tape conducts electricity and is the most efficient heating element, especially in the infrared range. This carbon tape is very soft and feels like a simple cloth. It's so thin that you can place it directly on fingers, and it will not cause inconvenience. The carbon tape can simply be stuck on any gloves and you will have a high quality heated gloves.
See how easy it is!
Step 1: All You Need Are:
3. Silver glue
7. Click switch
Step 2: Just Glue It!
Cut 4 x 2 ft carbon tape.
Fix wires on the carbon tape. One wire in the middle and two wires at the edges. Wires have to stick with a silver conductive adhesive. For convenience, we recommend that you sew wire to tape, and then apply a silver glue.
Cut the rough edge of the carbon, when the glue hardens.
Before stick the carbon tape on the gloves, try to arrange it, just a test how you will made it. You can choose your own location of the carbon tape on the fingers and the palm, for your convenience.
Step 3: And Glue It Again!
Apply a small amount of rubber cement to a small area of the carbon ribbon (just for one finger).
You do not have to apply the adhesive on a large length of the tape. You will be easier to stick a small portion of the tape, one finger after another, step by step.
Fast smudge the adhesive evenly over the surface of the tape. There is no need to wet the entire tape through, enough to moisten only the top layer. The less the glue, the softer get your glove.
Step 4: Make Your Heated Pattern.
Wait a few seconds until the glue dries and the surface will be similar to adhesive tape.
Put that portion of the tape to the glove, according to your idea of the location of the tape on the glove. Press it hard for a few seconds. Perhaps you would prefer to do this work with an assistant.
I recommend a little bend your fingers when you're sticking tape on the back of your hand.
Apply rubber cement to the next portion of the carbon tape and stick the tape to the next finger.
Proceed finger by finger and stick the whole carbon tape to the end.
Step 5: Connection
Look at the drawing and an equivalent circuit of the connection.
As you can see, the tape is connected in parallel 2x2 feet.
I used a voltage of 7.4 volts. One glove consumes 1.3 amps (about 10 watts) and heated up to 50 Celsius degrees.
Button glued thermal adhesive on the back of your hand and you can power up a glove as soon as it gets cold.
Step 6: Advanced Connection
Each glove consumes almost 10 watts. This is a very good emount of power, which will allow you to feel comfortable even in the dead of winter. But so you do not become hot recommend to use the thermostat on each glove. Thermostats are different temperature and you can always select the desired temp. It will automatically switch off the heating as soon as the temperature reaches the limit. You should place it under the carbon tape.
You might also be useful to have an LED power on indicator.
In this figure wiring diagram with thermostat and LED.
On the left glove extended connection, simplified connection on the right.
Choose your option and do as you need.
Step 7: Power It and Use
Heated gloves ready.
They are very thin and soft, and you can easily insert it into your winter gloves inside.
I stuck Velcro on gloves to secure the batteries holders.
At full power batteries will last for more than two hours!