| 摘要 |
The present invention relates to a temperature control device for a storage unit, capable of carrying out an accurate and reliable temperature control operation in view of an outdoor temperature as well as an indoor temperature and a target temperature in a storage unit when the storage unit controls the temperature. The temperature control device for a storage unit includes: a heater performing heating as one side is connected to an N node of an alternating power source; a refrigerator performing a cooling motion as one side is connected to the N node of the alternating power source; a first switch wherein one side is connected to an R node of the alternating power source so that an indoor temperature is in a first state in which the indoor temperature is lower than the outdoor temperature or the indoor temperature is in a second state opposite to the first state; a second switch wherein one side is connected to the R node of the alternating power source so that the indoor temperature is in the first state if the indoor temperature is higher than the target temperature and the indoor temperature is in the second state if not; and a power relay connected between the first and second switches, the heater, and the refrigerator and forming a power supply path to the refrigerator when both the first switch and the second switch are in the first state, wherein the power relay forms the power supply path to the heater when both the first switch and the second switch are in the second state. |
