JPH0452792A - Temperature controller for automatic vending machine - Google Patents

Abstract

PURPOSE:To sell the product of an appropriate temperature, which is fitted to a display to a user at any time by providing a cooling/heating switching means switching the cooling and heating of respective product storage rooms, a storage means, an order detection means and a main control means. CONSTITUTION:When a first product storage room is set to cooling and a second and third product storage rooms to heating, the main control part 6 consisting of CPU and ROM stores the state in the storage part 7, and detects and reads a total current in a current sensor 10. Then, the total current is discriminated and the heater 3 of the second product storage room is energized, and the heater 4 of the third product storage room is not energized, for example. When the second product storage room comes to a prescribed temperature, the heater 4 of the third product storage room is energized and the heater 3 is not energized. Thus, the total current is discriminated to be larger than the prescribed value or not. When the cooling/heating state is switched if the total current is larger, the product storage room is preferentially cooled or heated. Thus, an inconvenience that the product is not in a designated state can be cancelled.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a vending machine that receives coins and sells the products, which is equipped with a plurality of product storage chambers each having a cooling device and a heating device for cooling and heating the products. In particular, the present invention relates to a temperature control device for a vending machine that preferentially cools or heats a product storage chamber that is switched to be cooled or heated depending on the season.

[Prior Art] Conventionally, this type of vending machine switches between cold and hot products each season in order to increase sales and to create a product mix that suits the season. At this time, priorities are determined for the cooling/heating control in conjunction with the above-mentioned work, and in order to keep the total current below a reference value, rooms with lower rankings are not cooled or heated at all.

[Problem to be solved by the invention] However, in the above-mentioned change work, when switching between summer and winter, rooms with low priority will take a long time to cool down or warm up, and users will have to worry about things that do not get cold or things that do not get warm. There was a problem with being sold something that wasn't made.

SUMMARY OF THE INVENTION An object of the present invention is to provide a temperature control device for a vending machine that can solve the problem described in item 1- above and always sell products at an appropriate temperature that matches the displayed material.

[Step F for Solving the Problems] The present invention has a plurality of product storage chambers, and further includes a cooling device for cooling and a heating device for heating the products stored in each product storage chamber, and a method for storing coins. Cooling that switches between cooling and heating each product storage chamber in a vending machine that sells the product received.

heating switching means; storage means for storing the state of each room; total current detection means; command detection means for detecting commands of the cooling and heating switching means; Main control means for operating the heating device with priority and controlling the room designated for replacement to be in a predetermined state.

[Function] According to the present invention, when switching from cooling to JJII heat or heating to cooling when the total current reaches the specified value point 1, the energization is controlled so that the room is preferentially cooled or heated. stand in position

Embodiment FIG. 2 is a block diagram showing an embodiment of the present invention. In the figure, 1 is a vending machine main body which has a first product storage chamber dedicated to cooling and second and third product storage chambers that can be switched between cooling and heating, and 2 is a first product storage chamber (not shown). Second. A cooling compressor motor for sending and cooling refrigerant to each of the third product storage chambers, 3 a heater provided in the second product storage chamber, 4 a heater provided in the third product storage chamber, 5 is a cooling/heating selector switch that issues a command to switch between cooling and heating for each product storage compartment; 6 is a main control unit that includes a CPU and ROM that stores programs; and 7 is a main control unit that issues operating instructions to each device of the vending machine; A status storage unit consisting of a RAM that stores various data and the cooling/heating status of each room;
Reference numeral 8 denotes a priority setting unit that instructs to give priority to the control of the switched product storage chamber, 9 a temperature detection sensor that detects the temperature inside each product storage chamber, and 10 a current sensor that detects the total current.

The apparatus shown in FIG. 2 will be described below with reference to the flowchart shown in FIG.

In such a configuration, first in step 1, the state of the cooling/heating changeover switch is read. Now, the first product storage room is cooling, and the second product storage room is cooling. If the third product storage chamber is set to heating, this state is stored in the storage section 7 in step 2, and then the total current is detected and read by the current sensor 10 in step 3.

Next, in step 5, this total current is set to a specified value, for example 1.
3, 5A is determined, and if it is large, the second
The heater 3 in the third product storage chamber is energized, and the heater 4 in the third product storage chamber is de-energized.

Note that when the second product storage chamber reaches a predetermined temperature, the heater 4 in the third product storage chamber is energized and the heater 3 is de-energized.

Therefore, in step 6, the setting of the third room is changed from heating to cooling with the changeover switch 5, and immediately in step 7, the heater 4 is de-energized and the heater 3 is energized.

After that, in step 8, change the setting of the third product storage chamber from cooling to heating with the changeover switch 5, and then in step 9
4 heater windings are energized at , while heater 3 is de-energized,
Return to step 1.

In this way, when it is determined that the total current is larger than the specified value and the cooling/heating state is switched in the case of a dog, the product storage chamber is preferentially cooled or heated.

[Effects of the Invention] According to this invention, when the total current reaches a specified value point, by preferentially cooling or heating the product storage chamber that has been switched from cooling to heating or from heating to cooling, This eliminates the inconvenience of the product not being in the specified state as in the past, and the product can be quickly brought to the state after switching.

[Brief explanation of the drawing]

FIG. 1 is a claim correspondence diagram showing the configuration of this invention, FIG. 2 is a configuration block diagram showing the configuration of an embodiment of this invention, and FIG.
The figure is a flowchart 1 showing the operation of the apparatus of FIG. 2. DESCRIPTION OF SYMBOLS 1... Vending machine main body, 2... Cooling compressor motor, 3, 4... Heater, 6... Dosan control section, 7...
- Storage section, 8... Priority setting section, 9... Temperature detection sensor, 1 Fig. 2

Claims (1)

[Scope of Claims] 1) It has a plurality of product storage chambers, and further has a cooling device for cooling and a heating device for heating the products stored in each product storage chamber, and receives money and sells the products. In a vending machine, a cooling/heating switching means switches between cooling and heating each product storage chamber, a memory means stores the state of each room, a total current detecting means, and a command for the cooling/heating switching means is detected. and a main control means that operates the cooling device and the heating device with priority in response to the switching command, and controls the room specified by the switching command to quickly reach a predetermined state. Features: Temperature control device for vending machines.