JP2000298765A - Cooling and heating controller for vending machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the waste of the energy of a heating housing chamber, and to attain energy saving, when a main door and a heat insulating door are opened at the time of installing merchandise. SOLUTION: This vending machine is constituted of a plurality of housing chambers, equipped with a plurality of merchandise housing devices, a heat insulating door for tightly closing the housing chambers, a main door at the front part of the main body, a heating device 7 for heating merchandise housed in the merchandise housing device, a fan 8 for blowing cooled and heated air, a merchandise temperature detecting means 9 set at each housing chamber, a main door detecting means 10 for detecting that the main door is opened or closed, and an arithmetic control part 12 connected with the main door detecting means 10 and the merchandise temperature detecting means 9. Then, the arithmetic controlling part 12 compares a temperature preliminarily set with the temperature read by the merchandise temperature detecting means 9 in the case of heating preservation, in a state with the main door open. When the temperature of the merchandise temperature detecting means of the housing chamber in the case of heating preservation is lower than the temperature preliminarily set, it is deemed that the heat insulating door is opened, and power supply to the heating device and the fan of the housing chamber is stopped until the main door is closed, and thus waste of energy can be suppressed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling / heating control device for a vending machine which sells a product by cooling or heating the product stored in the product storage device.

[0002]

2. Description of the Related Art As a general vending machine of the prior art, for example, as shown in Japanese Utility Model Laid-Open Publication No. 62-4865, a cooling device by the operation of a thermostat is used in order to save power from the viewpoint of energy saving. When the heating device is stopped, a power saving method is adopted in which the fan motor can be stopped in synchronization with the heating device. However, regardless of the opening and closing of the main door and the heat insulating door, the cooling device / heating device and the fan motor are controlled only by the operation of the thermostat.

[0003]

However, in the above configuration, when the main door and the heat insulating door are opened at the time of filling the product, the temperature of the product temperature detecting means in the storage room heated particularly in winter is reduced. The device and the fan operate continuously. At this time, the temperature of the front part of the storage room decreases, the temperature of the back part of the storage room rises, and the temperature of the next product sold increases, and the depth of the storage room exceeds 60 degrees. Absent. In terms of energy saving, the heat in the storage room was released to the outside air, which was a factor in increasing power consumption.

The present invention has been made in view of the above problems, and provides a cooling / heating control device for a vending machine which does not waste energy when the main door and the heat insulating door are opened at the time of filling a product.

[0005]

According to the present invention, there is provided a vending machine cooling / heating control apparatus according to the present invention, comprising: a main body for cooling or heating and storing a product; A storage room, a heat-insulating door that seals the storage room, a main door at the front of the main body, a cooling device for cooling the products stored in the product storage device, and heating of the products stored in the product storage device. Heating device, a fan for blowing cooled or heated air, product temperature detecting means provided in each storage chamber, main door detecting means for detecting that the main door has been opened and closed, and a main door It has an arithmetic control unit connected to the detecting means and the commodity temperature detecting means. According to the present invention, in the state where the main door is opened, in the case of heating and storing, the arithmetic control unit compares the temperature read from the preset temperature and the temperature read from the product temperature detecting means, and calculates the product temperature of the storage room for heating and storing. If the temperature of the detecting means is lower than the preset temperature, it is considered that the heat-insulating door is open, and the power supply to the heating device and the fan of the storage chamber is stopped until the main door closes, thereby suppressing energy waste. can do.

A timer is provided for counting the current date and time. The timer is connected to the arithmetic and control unit. The timer counts the time from when the main door is opened by the main door detecting means, and when the time exceeds a preset time. Even if the temperature of the product temperature detecting means in the storage room for heating storage is lower than a preset temperature, by restarting the energization of the heating device and the fan of the storage room,
Even if the main door can be opened for a long period of time for service, or if the main door detection means breaks down and it is determined that the main door is always open, the heating device and fan should be By driving, predetermined performance can be ensured.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention comprises a main body for cooling or heating and storing a product, a plurality of storage rooms provided with a plurality of product storage devices, and a heat insulating door for sealing the storage room. And the vending machine consisting of the main door at the front of the main unit,
A cooling device for cooling the products stored in the product storage device, a heating device for heating the products stored in the product storage device, a fan for blowing the cooled or heated air; A product temperature detecting means provided in the room;
A main door detecting means for detecting that the main door is opened and closed; and an arithmetic control unit connected to the main door detecting means and the product temperature detecting means, wherein the arithmetic control unit is in a state where the main door is open. In the case of heating and storage, a preset temperature and a temperature read from the product temperature detection means are compared and calculated, and when the temperature of the product temperature detection means in the storage room for heating and storage is lower than the preset temperature, It is characterized by stopping the energization of the heating device and the fan of the storage room until the main door closes, and can suppress energy waste when the main door and the heat insulating door are opened at the time of filling products. it can.

According to a second aspect of the present invention, in addition to the first aspect of the present invention, a timer for counting the present date and time is further provided. The timer is connected to an arithmetic and control unit. If the time is counted from the time of opening and exceeds a preset time, even if the temperature of the product temperature detecting means in the storage room for heating and storage is lower than the preset temperature, the heating device and the storage room are not connected. By re-energizing the fan,
Even if the main door can be opened for a long period of time for service, or if the main door detection means breaks down and it is determined that the main door is always open, the heating device and fan should be By driving, predetermined performance can be ensured.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vending machine cooling / heating control apparatus according to the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a block diagram showing a configuration of a main part of a vending machine cooling / heating control apparatus according to Embodiment 1 of the present invention, and FIG. FIG. 3 is a flowchart showing the operation of the cooling / heating control device of the vending machine shown in FIG. 1.

In FIGS. 1 and 2, 1 is a main body, 2 is a product storage device for storing products, and 3 is a storage room formed of a heat insulating wall. Reference numeral 4 denotes a heat insulating door that seals the storage room 3, and reference numeral 5 denotes a main door. Reference numeral 6 denotes a cooling device for cooling the product, which is provided at a lower portion of the storage room 3. Reference numeral 7 denotes a heating device for heating the product, which is provided at a lower portion of the storage room 3. Reference numeral 8 denotes a fan that blows the air cooled by the cooling device 6 or the air heated by the heating device 7. Reference numeral 9 denotes a product temperature detecting means for controlling the operation of the cooling device 6 and the heating device 7 based on the temperature in the storage room 3.

Reference numeral 10 denotes main door detecting means for detecting that the main door 5 has been opened or closed. Reference numeral 11 denotes setting means for setting an operating temperature A for controlling the energization of the heating device 7 and the fan 8 and includes a plurality of switches, and 12 is connected to the main door detecting means 10, the commodity temperature detecting means 9 and the setting means 11. This is the calculated control unit. Reference numeral 13 denotes an open / close contact for opening and closing power supply to the heating device 7 according to a command from the arithmetic control unit 12, and 14 denotes an arithmetic control unit 1.
An open / close contact for opening / closing the power supply to the fan 8 in response to the command 2 and is connected to the arithmetic and control unit 12. Reference numeral 15 denotes a cooling / temperature switching switch for switching whether to cool or heat each of the plurality of storage chambers 3.

The operation of the cooling / heating control device for a vending machine configured as described above will be described below with reference to the flowchart of FIG.

Data of the operating temperature A (for example, 45 degrees) for controlling the energization of the heating device 7 and the fan 8 is input in advance by the setting means 11 (S1). It is determined whether the heating is set by the cold / hot changeover switch 15 for each storage room 3 (S2). If there is a storage room 3 in a heating setting, the main door detection means 10 determines whether the main door 5 is open (S3). When the main door 5 is opened, the current temperature B of the storage room 3 of the heating setting is read into the arithmetic and control unit 12 by the commodity temperature detecting means 9 for controlling the operation of the cooling device 6 and the heating device 7 (S4).

The arithmetic control unit 12 compares the temperature A with the temperature B (S5). If the current temperature B is lower than the set temperature A, the output of the relay is turned on (S6). When the relay is turned on, both the switching contact 13 and the switching contact 14 are opened, and the power supply to the heating device 7 and the fan 8 is stopped. Main door detection means 1
It is determined whether the main door 5 is closed at 0 (S7). When the main door 5 is closed, the output of the relay is turned off (S8).
When the relay is turned off, the switching contact 13 and the switching contact 14 are both closed, and power supply to the heating device 7 and the fan 8 is started.

As described above, in the cooling / heating control device of the vending machine according to the present embodiment, the main door 5 and the heat insulating door 4 are opened, and the temperature of the product temperature detecting means 9 in the storage room 3 for heating and preserving is set in advance. When the temperature is lower than the set temperature, the energization of the heating device 7 and the fan 8 of the storage room 3 can be stopped until the main door 5 is closed.
When the door is opened, waste of energy can be suppressed.

(Embodiment 2) Next, a cooling / heating control apparatus for a vending machine according to Embodiment 2 of the present invention will be described with reference to the drawings. For simplicity, a detailed description of the same configuration as in the first embodiment will be omitted.

FIG. 4 is a block diagram showing a configuration of a main part of a cooling and heating control device for a vending machine according to a second embodiment of the present invention.
FIG. 5 is a flowchart showing the operation of the main part of the cooling / heating control device of the vending machine shown in FIG. In FIG.
A timer 16 counts the current date and time, and is connected to the arithmetic control unit 12a. 11a is a setting means for setting the operating temperature A for controlling the energization of the heating device 7 and the fan 8 and for setting the opening time T of the main door 5, and is composed of a plurality of switches, and is connected to the arithmetic control unit 12a. ing.

The operation of the cooling / heating control device for a vending machine configured as described above will be described below with reference to the flowchart of FIG.

An operating temperature A (for example, 45 degrees) for controlling the energization of the heating device 7 and the fan 8 in advance by the setting means 11a.
And data of the opening time T of the main door 5 (for example, 60 minutes) are input (S1). Cool / temperature switch 1 for each storage room 3
It is determined from step 5 whether heating is set (S2). If there is a storage room 3 with a heating setting, the main door detecting means 10 uses the main door 5
It is determined whether or not is open (S3). When the main door 5 is opened, the main door opening time C is counted by the timer 16. (S
4).

Next, the current temperature B of the storage room 3 in the heating setting is read into the arithmetic and control unit 12 by the commodity temperature detecting means 9 for controlling the operation of the cooling device 6 and the heating device 7 (S5). The arithmetic control unit 12 compares the temperature A with the temperature B (S6). If the current temperature B is lower than the set temperature A, the output of the relay is turned on.
(S7). When the relay is turned on, both the switching contact 13 and the switching contact 14 are opened, and the power supply to the heating device 7 and the fan 8 is stopped. The main door detecting means 10 determines whether the main door 5 is closed (S8).

When the main door 5 is closed, the output of the relay is turned off (S10). When the relay is turned off, the switching contact 13 and the switching contact 14 are both closed, and power supply to the heating device 7 and the fan 8 is started. If the main door is open (open state) in (S8), the arithmetic control unit 12 compares the time T with the time C (S9), and the open time C exceeds the preset time T. In this case, the output of the relay is turned off (S10). If the release time C does not exceed the preset time T, the process returns to (S7) and turns on the output of the relay.
Keep doing.

As described above, in the cooling / heating control device of the vending machine according to the present embodiment, the main door 5 and the heat insulating door 4 are opened, and the temperature of the product temperature detecting means 9 in the storage room 3 for heating and preserving is previously determined. If the temperature is lower than the set temperature, until the main door 5 is closed, or when the opening time of the main door 5 is within a certain time,
The energization of the heating device 7 and the fan 8 of the storage room 3 can be stopped. When the main door 5 and the heat-insulating door 4 are opened at the time of filling a product or at the time of service (when repairing a failure or the like), energy is not consumed. Waste can be suppressed.

[0024]

As described above, according to the present invention, when the main door and the heat insulating door are opened and the temperature of the product temperature detecting means in the storage room for heating and storing is lower than a preset temperature, the main door is opened. The energization of the heating device and the fan of the storage room can be stopped until the door is closed, and waste of energy can be suppressed when the main door and the heat-insulating door are opened during product filling. When the product is heated and stored, the temperature of the product is, for example, about 55 degrees Celsius, and the outside temperature is 10 degrees or less in winter, so that the temperature difference is large. Therefore, there is no need to provide a switch or the like on the heat-insulating door for opening / closing detection, and the rationalization of parts can be achieved.

If the main door and the heat-insulating door are opened and the temperature of the commodity temperature detecting means in the storage room for heating and storing is lower than a preset temperature, the main door is closed or the main door is opened. If the time is longer than a certain time, the heating device and the fan in its storage room can be turned off, and the main door and the heat-insulating door are opened during product filling or service (when repairing a failure, etc.). In addition, energy waste can be suppressed. Normal product filling time is, for example, 10 minutes to 1
It is about 5 minutes, but when the service is available, the main door and the heat insulation door may be opened for several hours. In such a case, an extreme decrease in the product temperature will miss a sales opportunity, so a certain period of time will elapse. In this case, the energization of the heating device and the fan of the storage room is started, and the predetermined performance can be secured quickly without hindering the sale.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a main part of a cooling and heating control device for a vending machine according to a first embodiment of the present invention.

FIG. 2 is a side sectional view of the cooling / heating control device of the vending machine according to the embodiment.

FIG. 3 is a flowchart showing the operation of the vending machine cooling / heating control device of the embodiment.

FIG. 4 is a block diagram showing a configuration of a main part of a second embodiment of a vending machine cooling / heating control device according to the present invention;

FIG. 5 is a flowchart showing the operation of the vending machine cooling / heating control device of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Commodity storage device 3 Storage room 4 Insulated door 5 Main door 6 Cooling device 7 Heating device 8 Fan 9 Product temperature detecting means 10 Main door detecting means 12, 12a Arithmetic control unit 16 Timer

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Hideo Nakajima, 4-5-2-5 Takaidahondori, Higashiosaka-shi, Osaka Inside Matsushita Refrigerating Machinery Co., Ltd. (72) Kenzo Oku 4-chome, Takaidahondori, Higashiosaka-shi, Osaka No. 2 Matsushita Refrigeration Co., Ltd. (72) Inventor Morishi Yoshida 4-5-2 Takaida Hondori, Higashi-Osaka City, Osaka Prefecture F-term in Matsushita Refrigeration Co., Ltd. 3E044 AA01 CA01 CB01 CC08 CC10 DB12 DB16 DD10 FB12 3L045 AA02 BA01 CA02 DA02 EA01 GA07 HA01 KA09 LA05 LA09 LA13 MA01 NA15 NA16 NA19

Claims (2)

[Claims] 1. A body for cooling or heating and storing a product,
In a vending machine including a plurality of storage rooms provided with a plurality of product storage devices, a heat insulating door that seals the storage room, and a main door at a front portion of the main body, for cooling products stored in the product storage device. A cooling device, a heating device for heating the products stored in the product storage device, a fan for blowing cooled or heated air, a product temperature detecting means provided in each storage room, and the main door. A main door detecting means for detecting that the door has been opened and closed, and an arithmetic control unit connected to the main door detecting means and the product temperature detecting means, wherein the arithmetic control unit is configured to store heat while the main door is open. In the case of, the preset temperature is compared with the temperature read from the commodity temperature detecting means, and when the temperature of the commodity temperature detecting means in the storage room for heating and storage is lower than the preset temperature, the main door is closed. Heating device and its storage room Cooling and heating control device for the automatic vending machine characterized by stopping the energization of the fan. 2. A timer for counting the current date and time, said timer being connected to an arithmetic and control unit, counting the time from the time when the main door is opened by the main door detecting means and when the time exceeds a preset time. 2. The automatic heating apparatus according to claim 1, wherein even when the temperature of the product temperature detecting means in the storage room for storing heat is lower than a preset temperature, the heating device and the fan in the storage room are re-energized. Vending machine cooling / heating control device.