KR960032248A - Power Saver of Vending Machine - Google Patents

Abstract

Purpose: Not just a time setting by a timer, but proper power saving according to the actual sales situation.

Composition: By comparing the compressor (5), the valve (6) for guiding the refrigerant to the evaporator in the cabinet, the heater (2), the temperature sensor (3) in the cabinet, and the temperature in the cabinet with a preset on and off temperature. The compressor 5 is a power saving device of a vending machine composed of a drive control circuit 12 for controlling the heater 2 on / off, and includes a clock 8, a temperature sensor 3 and a clock 8 in the storage. Determination of the sales frequency judging the high and low sales frequency by comparing the detected temperature gradient with the reference temperature gradient value and the temperature gradient detector 9 for detecting the temperature gradient in the cabinet through the temperature and time in the cabinet obtained from Means 10 and an on / off temperature shift section 11 for shifting the on temperature and off temperature for power saving operation when it is determined that the sales frequency is low.

Selectivity: 10th

Description

Power Saver of Vending Machine

Since this is an open matter, no full text was included.

10 is a control block diagram showing an embodiment of a power saving device according to the first invention

11 is a flow chart showing the control operation of the refrigerator in the apparatus shown in FIG.

13 is a control block diagram showing an embodiment of a power saving device according to the second invention

FIG. 14 is a flow chart showing the control operation of the refrigerator in the apparatus shown in FIG.

FIG. 15 is a control block diagram showing an embodiment of a power saving device according to FIG.

Claims (3)

A compressor 5 for condensing refrigerant, a valve 6 for guiding the condensed refrigerant to an evaporator in the cabinet, a heater 2 for applying temperature in the cabinet, and a temperature sensor 3 in the cabinet for detecting the temperature in the cabinet. Power saving of the vending machine comprising a drive control circuit 12 for controlling the compressor 5 or the heater 2 on / off by comparing the temperature in the storage cabinet with a preset on temperature Ton and off temperature Toff. A device, comprising: a clock (8) for displaying a time and a temperature gradient detector for detecting an inclination of temperature change in the storage through the temperature and time in the storage obtained from the temperature sensor (3) and the clock (8) of the storage ( 9) and sales frequency determining means 10 for determining the high and low sales frequency by comparing the detected temperature gradient with the air temperature gradient value, and the on temperature and the off temperature when it is determined that the sales frequency is low. On / Oh shift (Toff) for power saving Automatic power saving devices of the vending machine, characterized in that a temperature shift (11). The method of claim 1, further comprising an external temperature sensor 13 for detecting an external temperature, and correcting the reference temperature gradient based on a difference between the external temperature, the on temperature Ton, and the off temperature Toff. Power saving device of the vending machine. The power saving device of the vending machine according to claim 1, further comprising a product residual number detecting unit (14) for detecting the number of residual products, and correcting the reference temperature gradient based on the residual quantity of products. ※ Note: It is to be disclosed based on the initial application.