| 摘要 |
Evaporative coolers are disclosed. The evaporative cooler includes a cooler housing, a pump, a float, and a magnetic switch. The cooler housing defines a receptacle for receiving water. The pump is disposed at least partially within the receptacle defined by the cooler housing. The pump is configured to pump water received in the receptacle defined by the cooler housing. The float is disposed within the cooler housing and positioned to float on the water received in the receptacle defined by the cooler housing. The float includes a magnet. The magnetic switch is mounted on the cooler housing and configured for activation when the magnet is proximal to the magnetic switch. The magnetic switch is electrically coupled to the pump such that the pump is deactivated when the magnetic switch is activated by the magnet.
|
