Patent ID: 9683774
Date: 2017-06-20
CPC Classifications: B60H,F25D

Claim:
1. A vehicular cooling storage evaporator system, comprising: a controller; an evaporator having a first portion and a second portion, the second portion disposed below the first portion; a frost control door actuator in communication with the controller; and a frost control door disposed upstream from the evaporator and movable via the frost control door actuator between an open position where air from a blower is allowed to pass over the first and second portions of the evaporator and a closed position where air from the blower is allowed to pass over the first portion of the evaporator while being prevented from passing over the second portion of the evaporator, wherein the cooling storage evaporator system is configured to accumulate frost on at least a portion of the second portion of the evaporator while the frost control door is in the closed position, wherein at least one frost detecting thermal sensor is provided on the evaporator and in communication with the controller, the frost detecting thermal sensor being operable to detect an amount of frost formed in the second portion of the evaporator, the controller being configured to control the frost control door actuator depending on the detected frost amount on the second portion of the evaporator.