Automatic ice maker

Abstract

Separation between ice making plate and an insulation layer and that between the insulation layer and heating means is prevented from occurring to enable an efficient ice making operation. Also, a metallic plate and the heating means are reliably insulated from each other. An automatic ice maker where an ice making member (11) is provided with a vaporizer tube (14) and electrical heaters (H1-HN), wherein, in an ice making operation, a refrigerant is circulated and supplied in the vaporizer tube (14) to cool the ice making member (11) and simultaneously ice making water is supplied to the ice making member (11) to produce an ice block (M), and in an ice removing operation, electricity is conducted in the heaters (H1-HN) to produce heat, melting and removing the ice block (M) from the ice making plate (11). The ice making member (11) is formed by making connections by thermal compression bonding both between a metallic plate (12a) and an insulation layer (12b) and between the insulation layer (12b) and the heaters (H1-HN) with the insulation layer (12b) interposed between the metallic plate (12a), to which the vaporizer tube (14) is connected, and the heaters (H1-HN). Further, in addition to the thermal compression bonding, the external outlines of the heaters (H1-HN) may be positioned inside the insulation layer (12b).

Description

technical field [0001] The present invention relates to an automatic ice maker that detaches ice cubes formed on an ice making unit by energizing a heating mechanism to generate heat. Background technique [0002] An automatic ice maker that automatically makes a large amount of ice cubes, in which an evaporator pipe leading out from a refrigeration system equipped with a compressor or a condenser is arranged in the ice making part, and the above-mentioned ice maker cooled by the refrigerant circulated and supplied to the evaporator pipe is provided with an ice maker. The ice unit supplies ice-making water to generate ice cubes, and peels off the obtained ice cubes to drop and discharge them. This automatic ice machine is equipped with an ice-making water tank for storing a predetermined amount of ice-making water. During the ice-making operation, the ice-making water in the tank is supplied to the ice-making part by pumping it with a circulating pump, and the ice-making wat...

AI Technical Summary

Problems solved by technology

However, in the structure where the resin is pasted with an adhesive, due to the influence of heat when the heater is energized to generate heat, the deterioration of the adhesive over a long period of time, or the expansion / expansion of the resin due to heating and cooling. Shrinkage, etc., may cause peeling between the metal plate and the resin part, or between the resin part and the heater

If the insulating layer is peeled off from the metal plate or the heater, an air layer will be formed between them, making it difficult to cool the heater that generates ice cubes during ice making operation, resulting in reduced ice making efficiency

[0006] In addition, when the insulation between the metal plate and the heater is insufficient, when the heater is energized, the heating efficiency of the heater will be reduced, and the ice machine will be damaged.

Images