JPS5835771U - ice maker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

Fig. 1 is a power consumption characteristic diagram showing the relationship between evaporation temperature and condensation temperature and power consumption, Fig. 2 is a sectional view of a plate ice maker, Fig. 3 is a cooling system diagram, and Fig. 4 is a control circuit diagram. FIG. 5 is a condensing pressure characteristic diagram showing changes in condensing pressure as the ice making and ice removal cycles progress. In the figure, 1 is a cooler, 3 is a compressor, 4 is a fan, 5a is an air-cooled condenser, 5b is a water-cooled condenser, 8 is a hot gas valve, 13 is an ice-making timer device, and 16 is a first switch,
17 is a second switch. Figure 2 Figure 3

Claims (1)

[Scope of utility model registration request] An ice making device comprising a refrigerant compressor, a condenser for condensing refrigerant from the compressor, an expansion valve, and a cooler connected in an annular manner, and further provided with a hot gas valve in parallel with the condenser and the expansion valve. The machine is equipped with both a water-cooled condenser and an air-cooled condenser cooled by a fan as the condenser, and detects at least one of the temperature and pressure of the condenser. and at least one of the temperature and pressure of the cooler decreases to a predetermined value from the start of the ice making cycle, by a control circuit equipped with a switch that stops the operation of the fan when at least one of the temperature and the pressure decreases to a predetermined value. An ice maker characterized in that the condensing temperature and condensing pressure are lowered until the ice making cycle is completed, and the condensing temperature and condensing pressure are then raised until the end of the ice making cycle.