Heated Gloves Version 3
Introduction: Heated Gloves Version 3
A further refinement of my previous design which is simpler to build with smaller and stronger electrical connections. To reduce clutter in this tutorial I left some of the techniques for working with carbon heat rope in a separate Instructable. https://www.instructables.com/Working-With-Carbon-Heat-Rope/
I've made another version that uses a USB-C power bank to power both gloves. That project also shows how to build a small controller with variable output Heated Gloves Ver 3.5. I also have a separate Instructable for just the controller Heated Clothing Controller.
For many people like myself keeping our fingers warm while outside during the winter poses a constant challenge. More acutely for those of us who suffer from Raynaud's where our body cuts off circulation to the extremities in response to cold exposure. A further complication arises when engaging in an activity such as cycling that requires grasping objects, compressing glove palm insulation reducing its effectiveness. Chemical warmers are bulky, often don't fit inside regular gloves and may not get heat to the fingers where it is needed.
The solution, a pair of thin liners with battery powered heat delivered to all 5 digits that you can slide into your favorite glove! The heat is generated from carbon fiber rope attached a glove of your choice.
Supplies
Items you may need to order along with links to sample items:
* Carbon Heat Rope: Approximately 1 meter (might as well get extra incase you run into a problem)
* Liner Glove of your choice
* Construction steps will make the gloves slightly smaller inside, so it is best to choose a liner that isn't super tight
* For this version of the project I used a heavier windproof glove
* 24 or 22 AWG Highly Flexible Silicone Covered Hookup Wire: 24 is better for this ver of glove
* Double Sided Fabric Tape
* This comes in sheets and rolls. I find the sheets easier to use since they have backing on both sides making them easier to cut. 98
When cutting the rolled tape it sticks to scissors. The roll tape pieces also curl before sticking them down.
* Liquid Electrical Tape
* Thin polyester fabric
* A thin poly spandex blend with some stretch, prices vary wildly but a local fabric store should have something on sale, remnants, etc
* I've just been cutting up an old pair of stretch thermal underwear or bike shorts
* 2 x 7.4V battery packs (see battery section)
Optional items depending on design choices. Many of the electronic components can be found inexpensively on Banggood or AliExpress.
* Thermostat Switches x 2
* Power Connectors (varies with battery selection)
* Flashlight Push Switches x 2
* Multi-Setting Power Controller x 2
* Mini PWM Motor Controller / LED Dimmer x 2
* USB Type C PD Trigger 9V x 2
* USB Type C male to male dongle x 2
* 22 AWG silicone parallel conductor wire (for extension cables)
Tools:
* Soldering iron and solder
* Solder flux
* Pliers
* Small wire snips
Optional Tools:
* Grabber test leads
* Infrared Thermometer
* 3rd hand soldering clamp
* Multimeter that can measure current (amps)
* Multimeter temperature probe
Step 1: Overview & Design Considerations
This project involves attaching carbon fiber heating loops to a pair of gloves and wiring each to a 7.4 volt battery. The temperature generated drops as the length increases which is why separate loops are connected in parallel. Since we are creating an electronic circuit the carbon fiber cannot cross itself.
* Gloves are turned inside out
* Heating loops are prepared by attaching wires to carbon fiber rope
* Heating loops are attached to glove using double-sided fabric tape and a cover fabric
* Wires and optional thermostat are connected
A switch, power plug and thermostat may also be added depending on how you plan on using the gloves.
Heat
The heat produced by the carbon fiber rope rapidly increases as the length decreases so you need to be careful to avoid making a heating loop that is too short otherwise dangerously hot temperatures can be achieved.
The carbon heat rope linked to in the shopping is a loose weave of 12 smaller bundles of fibers. By separating the smaller ropes and using several as a group a shorter loop can be created without generating too much heat. This is done for the thumb loop.
Voltage also affects how hot the heating loops will get. The instructions provided here assume a 7.4V battery is used. Heating loop lengths would need to be shortened if using a 5V USB power bank and lengthened if using higher voltages. I have not used these voltages, the charts on this page can be used as reference: https://www.carbonheater. 98