My situation is: I have a 220v EVSE from Lear / Fisker and it works great. However I am living in a rental property and don't want to make any permanent changes to the house wiring. It would just be too much trouble and too expensive for the short time I will be here (perhaps a year). The charger has a drier plug and that works just fine, except I have to switch it out every night with my clothes drier.
Of course this is a pain:
I thought about making some kind of a dual plug setup with an automatic switchover. If the clothes dryer is in use the power goes to the drier. If it is not the power goes to the car. This way when the drier's cycle is done it switches back to charge my car, even if it finishes when I am asleep. In the simplest case it could be a manual switchover with a standard light switch, and at least I don't have to plug / unplug the drier every night.
The current sensing switch or manual light switch would have to control a relay of some kind. I was looking for something DPDT (double pole double throw) capable of 20a per leg, with 120v coil voltage to keep it simple. To keep the cost down I was looking for a surplus relay or something salvaged from an oven or HVAC equipment. I'd really like to keep all the parts under $100.
For the auto-switch: there are current sensing setups I have seen. With some simple circuitry I could rig this to the relay.
Opinions / ideas?
[edit: fixed spelling of that machine that dries clothes)
Of course this is a pain:
- These plugs are not meant to be plugged and unplugged every day.
Its inconvenient
Its ugly
Its not all that safe
I often forget to switch the plugs at night and wake up with a dead car in the morning
I thought about making some kind of a dual plug setup with an automatic switchover. If the clothes dryer is in use the power goes to the drier. If it is not the power goes to the car. This way when the drier's cycle is done it switches back to charge my car, even if it finishes when I am asleep. In the simplest case it could be a manual switchover with a standard light switch, and at least I don't have to plug / unplug the drier every night.
The current sensing switch or manual light switch would have to control a relay of some kind. I was looking for something DPDT (double pole double throw) capable of 20a per leg, with 120v coil voltage to keep it simple. To keep the cost down I was looking for a surplus relay or something salvaged from an oven or HVAC equipment. I'd really like to keep all the parts under $100.
For the auto-switch: there are current sensing setups I have seen. With some simple circuitry I could rig this to the relay.
Opinions / ideas?
[edit: fixed spelling of that machine that dries clothes)