Heated Janitors

Those who traveled by car in the winter are perfectly familiar with the fact that snow and frost are sticking to car brushes or wipers in the winter. And if there's snow in the street mixed with rain, so the janitors generally cover themselves and do not clean the glass. Besides, the brushes are constantly frost-free to the glass, and if you forget to scrape them off the ice, you can tear off the eraser at startup.To fight with this of course you can constantly manually, but you will agree, it is not convenient. And to go to the snow and constantly stop while riding is not only not convenient, but also a very time consuming business. There is a way out - to buy brushes with heating, which will cost a pretty penny. And you can do as I do with heated brushes myself. /medium/1513765000_1.jpg "style =" max-width: 100%; " alt="Heated Janitors">

Disassembling the Janitor

I bought the cheapest frameless Chinese wipers. Which I will analyze in a few minutes.Windshield wipers Snapping off the latches and removing the top plate. Next, remove all the rubber bands and metal inserts.
Heated Janitors
Heated Janitors
The Janitor has been pulled apart.
Heater Janitors

Making a heating element

I made a heating element from a nichrome spiral.
Heated Janitors
I will choose the size of the nichrome thread not by its length, but by its resistance. I will cut a piece with a resistance of 7.5 Ohms. You can take in the range of 6-10 ohms. Power and current, I think, you yourself will count without problems. I got such a piece of wound wire.
Heated Janitors
Heated Janitors
Then it is necessary to dissolve it in one core without turns. Just so pull and stretch it to the sides can not, because will remain wavy. Put a spiral on an iron pin or a screwdriver and pull it. Only then you will have a flat wire of nichrome. Janitors with heating

Making the janitor with heating

We take the wire of nichrome and make a coil in the elastic of the janitor. Utaplivaem nichrome screwdriver in the recesses of the gum. We have one coil of nichrome directly on the elastic band.
Heated Janitors
Heated Janitors
Next, we draw the wire into the body and make a coil in the body of the janitor and dress the elastic.
Heated Janitors
As a result, the entire heating element will consist of two turns: one on the elastic band, the second in the janitor’s body. Cut the excess pieces of wire, but measure resistance before that. Below 6 ohms it will not fall, it means normal. div>


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