JPH0337381U - - Google Patents

Description

[Brief explanation of drawings]

Figure 1 is a cold storage guide layout diagram of a cold storage type cold storage box according to an embodiment of the present invention, Figure 2 is an electrical wiring diagram of the cold storage type cold storage box shown in Figure 1, and Figure 3 is the performance of the cold storage type cold storage box shown in Figure 1. A characteristic diagram, FIG. 4 is a vertical sectional view showing the structure of a conventional cold storage type cold storage box, and FIG. 5 is a layout diagram of the cold storage chamber of the cold storage type cold storage box shown in FIG. 4. 5... Cold storage chamber, 23... Cold storage agent, 7... Cooler, 12... Ventilation fan, 26... Changeover switch.

Claims (1)

[Scope of utility model registration request] A cold storage room for keeping transported items such as food cold;
A cold storage chamber that freezes a cold storage agent, two types of cold storage agents with different melting temperatures installed in the cold storage chamber, a cooler that freezes the cold storage agent, and a ventilation fan that uses a battery as a power source to control the temperature of the cold storage chamber. and,
switching means for switching the freezing temperature of the refrigerant into two stages, the refrigerant having a predetermined convection gap in the direction perpendicular to the flow of cold air generated by the operation of the ventilation fan, and having a low melting point. A cold-storage type cold storage box characterized by alternately arranging a cold storage agent and a cold storage agent with a high melting point to lower the freezing temperature in the summer and increase the freezing temperature in the winter.