JPS60253776A - Refrigerator - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a refrigerator having a rapid cooling function, and particularly relates to rapid cooling control during automatic defrosting of a refrigerator.

Configuration of the conventional example and its problems As shown in Fig. 1, in the conventional rapid cooling control with a rapid cooling function, a manual time switch 1 is operated and a timer 2 is operated until a predetermined time is reached, and the rapid cooling chamber is operated. The dedicated motor 3 rotates. Time switch 1 turns OFF when a certain time comes
The process ends. A thermostat 4 detects the temperature inside the refrigerator and controls the compressor 6. Reference numeral 6 denotes a defrosting timer, which is composed of a timer motor 6a and a time switch 6b.
b is activated to energize the defrost heater 7.

8 is a defrosting completion detection switch. A switch 6C, which operates in conjunction with the defrosting timer switch 6b, is connected in series with the rapid cooling motor 3 and is used to turn off the rapid cooling motor 3 during defrosting. With the above configuration,
Even though the internal temperature is low near the quenching chamber, the quenching action stops, so the quenching time is long, and after defrosting, the warm cold air after defrosting is stirred, which has the opposite effect. It had

OBJECTS OF THE INVENTION It is an object of the present invention to eliminate the above-mentioned drawbacks, shorten the quenching time, and prevent food temperature rise.

Structure of the Invention In order to achieve this object, the refrigerator of the present invention is equipped with a temperature switch that deactivates the blower when the temperature of the cooler rises above a predetermined value after the defrosting device of the cooler operates to defrost. This prevents the drawbacks of the conventional method and provides a rapid cooling effect.

Description of examples An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 2, 1 is a time switch, which can be turned on and off manually. Further, after setting the time switch, the quenching timer motor 2 operates, the quenching exclusive motor 3 also operates for a predetermined time, and when the predetermined time elapses, the time switch 1 is turned off. A thermostat 4 detects the temperature inside the refrigerator and controls the compressor 5. A defrost timer 6 integrates the operating time of the compressor, and when a predetermined time elapses, a timer motor 6a operates a time switch 6b to energize the defrost heater 7 and start defrosting. Reference numeral 8 denotes a defrost detection switch, which stops energizing the defrost heater 7 when the temperature reaches a certain level. Also, after a certain period of time, the defrost timer 6 restarts the cooling operation and energizes the compressor 6.

Reference numeral 9 denotes a temperature switch connected in series with the rapid cooling motor 3 and provided at the same location as or near the defrost detection switch 8, and is set to always turn off earlier than the defrost detection switch. For example, if the defrost detection switch is set to 6°C if the cooler temperature is OFF at 13°C.

In the above configuration, even if defrosting is started, the motor dedicated to rapid cooling does not turn off, and if the cooler has not cooled down, even if defrosting is finished, it does not return quickly.

Therefore, even if defrosting is activated during the set rapid cooling time, the time is shortened because the food is rapidly cooled, and there is no need to blow warm cold air after defrosting, resulting in a remarkable effect in rapidly cooling the food. Moreover, it not only becomes possible to re-seal the defroster detection switch integrally with the defrost detection switch, but also has the advantage that the time switch can also be a simple mechanism.

Effects of the Invention As is clear from the above description, in the present invention, a quenching chamber provided in a refrigerator compartment, a dedicated blower for cooling the quenching chamber, and a dedicated blower for cooling the quenching chamber are operated for a certain period of time, and the defrosting device of the cooler is activated. Since it is equipped with a temperature switch that stops the operation of the blower only when the temperature of the cooler rises above a predetermined value after operation, the following effects can be obtained.

(1) Warm air after defrosting is not stirred and cools rapidly.
Does not adversely affect operation.

(2) The circuit configuration is simple and inexpensive.

(3) Interruption time during defrosting is reduced.

[Brief explanation of the drawing]

FIG. 1 is a conventional rapid cooling control circuit diagram, and FIG. 2 is a circuit diagram of an embodiment of the present invention. 1...Time switch, 2...Quick cooling timer motor, 3... -Quick cooling dedicated motor, 6...
...Defrost timer, 7...Defrost heater, 4...
Thermostat, 8... Defrost detection switch, 9.
...Temperature switch. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure

Claims (1)

[Claims] A refrigerator compartment, a freezer compartment, a cooler, and a defroster device for the cooler, a quenching chamber provided in the refrigerator compartment, and a dedicated blower for cooling the quenching chamber using cold air inside the refrigerator; a temperature switch that operates the blower for a certain period of time and releases only the operation of the dedicated blower when a defrosting device of the cooler is activated and a temperature near the cooler rises above a set value during defrosting; Equipped with a refrigerator.