JP2004258784A - Paper pack vending machine and cooling control method by cooling unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper pack vending machine and a cooling control method of a cooling unit which can reduce running costs and pulling-down time. <P>SOLUTION: The paper pack vending machine 1 is equipped with the cooling unit 30 for cooling paper packaged commodities contained in a box of the machine by cold airflow, an air blowing switching guide means 34 having a function for switching to either of entire area blowing for circulating cold air sent out from the cooling unit 30 in the entire area of the box and zone cooling for circulating the cold air in a lower part area, a thermistor 36 for detecting the temperature in the box, and an air blowing switching controller 39 for controlling switching between the zone cooling and the entire area cooling by the air blowing switching guide means on the basis of the temperature detected by the thermistor 36. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a paper pack vending machine that sells various paper pack products such as syrup beverages, coffee beverages, and dairy beverages as cold products, and particularly relates to a temperature detected by a temperature detection unit provided in a refrigerator. The present invention relates to a paper pack vending machine and a cooling control method using a cooling device, which can shorten a pull-down time by controlling switching between zone cooling and whole-area cooling.
[0002]
[Prior art]
Conventionally, vending machines dedicated to canned goods that sell canned coffee drinks, etc., as well as paper pack vending machines that sell various beverages such as coffee drinks and dairy drinks as paper pack products due to the ease of purchasing products have become widespread. are doing. When storing (preserving) dairy beverages such as milk in the refrigerator of such a paper pack vending machine, it is necessary to cool the product to a predetermined low temperature (10 ° C. or lower) from the viewpoint of maintaining quality. is there.
[0003]
For this reason, a cooling device including a cooler (evaporator) and a blower fan is provided in the refrigerator of the paper pack vending machine. Then, the cooling device cools the whole area in the refrigerator. Specifically, an evaporator of the cooling device is operated, and the entire region in the refrigerator is circulated and blown by a cool airflow blown from a blower fan of the cooling device to perform the entire region cooling. Thereby, the quality of the milk packaged product can be maintained, and the temperature at the time of drinking can be set when the user purchases the product.
[0004]
Further, as a cooling control method of a cooling device in a paper pack vending machine of this type, by providing a ventilation switching guide means, among products stored in a rack, a product having a quick sales order (hereinafter referred to as “NEXT product”). ) Is preferentially cooled by zone cooling control, and is then switched to full-range cooling control by the operation of a ventilation switching guide means (for example, see Patent Document 1).
[0005]
[Patent Document 1]
JP-A-2002-56449
[0006]
[Problems to be solved by the invention]
However, the cooling control method using the cooling device in the conventional paper pack vending machine has the following problems. That is, as described above, in the related art, after the zone cooling control for the NEXT product immediately before sale is completed, the ventilation switching guide means is operated, and from this zone cooling control, the entire area cooling in the vending machine (in the refrigerator) is performed. At the time of this switching, the room-temperature air remaining in the upper part of the refrigerator reaches the lower part of the refrigerator by circulation, and is cooled to a predetermined temperature by the initial zone cooling control. There is a problem that the NEXT product is heated.
[0007]
In this case, since it is necessary to perform the zone cleaning control again, it takes a long time until the NEXT product is cooled to the appropriate selling temperature. Specifically, there is a problem that the time from when the vending machine is turned on to when the vending machine becomes available for sale (pull-down time) becomes long, so that the selling timing is missed, which is not preferable. Hereinafter, the problem regarding the pull-down time will be described with reference to FIG.
[0008]
FIG. 9 shows a correlation diagram between the inside temperature of the paper pack vending machine and the pull-down time based on the temperature of the NEXT product. Here, a diagram a is a graph showing a transition of the pull-down time by the whole area cooling control without performing the zone cooling control. As is clear from FIG. 6, only the whole-area cooling control requires a long preparation time until the temperature of the product stored in the refrigerator reaches the reference cooling temperature T1 (10 ° C. or lower).
[0009]
Further, a diagram b is a graph showing a transition of the pull-down time by the conventional zone cooling control. In this case, as shown in the figure, the temperature in the refrigerator temporarily decreases to the reference cooling temperature T1 (10 ° C. or less) due to the initial zone cooling. However, when the zone cooling control is switched to the entire area cooling control. As described above, as described above, the temperature of the lower part (the cooling temperature of the NEXT product) becomes higher than the reference cooling temperature T1 (10 ° C. or lower) by the circulation of the room temperature air on the upper side of the refrigerator. This poses a problem from the viewpoint of the Food Sanitation Law that the temperature in the refrigerator must be kept at 10 ° C. or lower.
[0010]
As described above, in the conventional cooling method using the cooling device, a long preparation time (pull-down) is required from the restart of sales after the supply of the goods (power ON) to the cooling of the NEXT goods stored in the lower area in the rack to the appropriate selling temperature. Time) and consumes more power than necessary.
[0011]
The present invention has been made in view of the above circumstances, and controls the operation of the ventilation switching guide means based on the temperature detected by the temperature detection means provided in the refrigerator of the paper pack vending machine. It is an object of the present invention to provide a paper pack vending machine and a cooling method for a cooling device, which can shorten the time required for the energy saving and improve the energy saving efficiency.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, a paper pack vending machine according to claim 1 of the present invention is a paper pack vending machine that cools a plurality of paper pack products stored in a refrigerator as cold products. The vending machine has a cooling device that cools the paper pack products stored in the refrigerator by circulating air with cool air, and a whole-area blower or a refrigerator that circulates cool air sent from the cooling device to all regions in the refrigerator. Blower switching guide means having a function of switching to any of the lower area air circulating in the lower area, temperature detecting means for detecting a temperature in the refrigerator, and a temperature detected by the temperature detecting means. A blower switching control device for controlling the operation of the blower switching guide means.
[0013]
Further, in the paper pack vending machine according to claim 2 of the present invention, in the above-described claim 1, the cooling device is constituted by a wind tunnel having a cooler and a blower fan therein, The body portion includes an air outlet duct connected to the air body portion, and the air flow switching guide means is provided inside the air outlet duct.
[0014]
The paper pack vending machine according to claim 3 of the present invention is the paper pack vending machine according to claim 1 or 2, wherein the blower guide switching means includes a blower guide plate and an electromagnetic solenoid that operates the blower guide plate. And switching of the cool air flow by ON / OFF control by the electromagnetic solenoid.
[0015]
Also, in the paper pack vending machine according to claim 4 of the present invention, in the above-described claim 1, 2 or 3, the blower switching control device is such that the temperature detected by the temperature detecting means is a suitable selling temperature. When the temperature rises to the reference cooling temperature, zone cooling for circulating cool air in the lower region in the refrigerator is performed, and when a temperature decrease to about half of the reference cooling temperature is detected, the entire region cooling control is performed. Features.
[0016]
The cooling control method by the cooling device according to claim 5 of the present invention is the cooling control method for a paper pack vending machine that cools a plurality of paper pack products stored in a refrigerator as cold products. A zone cooling step of cooling the lower region in the refrigerator of the vending machine by a cool air flow, a whole region cooling process of cooling the whole region of the refrigerator, a temperature detecting step by temperature detecting means, and the temperature detecting step. And a blower switching control step of switching one of the cooling steps of the zone cooling control step and the whole area cooling control step based on the temperature.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
DESCRIPTION OF EMBODIMENTS Preferred embodiments of a paper pack vending machine and a cooling control method by a cooling device according to the present invention will be described in detail below with reference to the accompanying drawings. Here, a feature of the present invention is that a thermistor 36 for detecting the temperature in the refrigerator is provided in the refrigerator of the paper pack vending machine, and based on the temperature detected by the thermistor 36, the blower switching controller 39 controls The purpose of the present invention is to keep the temperature of the NEXT product at a reference cooling temperature (10 ° C. or lower) by controlling the switching between the whole area cooling control and the zone cooling control.
[0018]
FIG. 1 is a side view showing a schematic configuration of a paper pack vending machine according to an embodiment of the present invention. FIG. 2 is an enlarged view showing a lower part of the paper pack vending machine. Here, in FIGS. 1 and 2, the solid arrows indicate the path of the circulation ventilation by the zone cooling control, and the chain arrows indicate the path of the circulation ventilation by the entire area cooling.
[0019]
That is, the paper pack vending machine 1 illustrated in FIG. 1 is a vending machine for selling various drinks such as coffee drinks and dairy drinks as paper pack products, and includes a main body cabinet 10 and a front outer door 20. It is composed.
[0020]
The main body cabinet 10 has a rectangular parallelepiped shape with an open front surface (the right side in FIG. 1). Inside the main body cabinet 10, a direct-stacking rack 21 for stacking paper pack products vertically and storing them is mounted. . Further, a horizontal conveyor 24 is provided below the direct-loading rack 21 to carry out the products dropped (unloaded) from the rack 21 to the product outlet 23.
[0021]
The products stored in the rack 21 are the lowest order products stored in the rack 21 (for each column) by the operation of a bend mechanism (not shown) based on a purchase instruction (sales command) from the user. From the product outlet 23 by the horizontal conveyor 24.
[0022]
As shown in detail in FIG. 2, a cooling device 30 is provided on the bottom side of the inside of the refrigerator constituting the paper pack vending machine 1. Reference numeral 34 denotes a condensing unit in which a compressor (not shown) and the like are provided.
[0023]
The cooling device 30 is constituted by a wind tunnel 33 having therein an evaporator 31 (evaporator) and a blower fan 32. The inside of the refrigerator sucked from a suction opening opened forward (the right side in FIG. 2). The air is cooled by the evaporator 31 and can be blown into the storage through the blow duct 40 by blowing air from the blowing fan 32. Further, a thermistor 36 (temperature detecting means) for detecting the temperature in the refrigerator is provided near the cooling device 40.
[0024]
As shown in FIGS. 3A and 3B, an outlet duct 40 having an upper end opening 41 facing the upper part in the refrigerator is connected to a rear end side of the wind tunnel 33 constituting the cooling device 30. In addition, a ventilation switching guide means 42 is provided in the inside of the blow-out duct 40, so that the entire area can be cooled by circulating a cool air flow through the opening 41 through the entire area in the refrigerator. Further, an air outlet 43 is also opened on the side surface of the blow-out duct 40, and zone cooling for blowing cool air toward the lower part in the refrigerator can be performed through the air outlet 43.
[0025]
Hereinafter, the details of the ventilation switching guide means will be described with reference to FIGS. 3 (a) and 3 (b). That is, as shown in FIGS. 3A and 3B, the blower switching guide means 42 includes a blower guide plate 45 and a rotating shaft 46 that supports the base end of the blower guide plate 45. The rotating shaft 46 is attached and fixed to the inner wall surface of the blow duct 40, and the rotating shaft 46 is connected to an electromagnetic solenoid 50 (FIG. 4).
[0026]
FIG. 3A is a diagram for explaining the operation of the ventilation switching guide means at the time of zone cooling control. That is, when performing zone cooling control, the blow guide plate 45 is rotated clockwise by the ON control of the electromagnetic solenoid 50. As a result, the air guide plate 45 swings clockwise about the rotation shaft 46, stops at a position at an angle of approximately 45 °, and closes the upper end opening 41 of the blow duct 40. Thereby, since the cool air blown from the cooling device 40 is sent out not from the upper end opening 41 but from the blower opening 43 (solid line arrow), it is possible to cool the NEXT products stored in the lower part in the refrigerator.
[0027]
FIG. 3B is a diagram for explaining the operation of the ventilation switching guide means during the entire area cooling control. That is, when performing the whole area cooling control, the blow guide plate 45 is rotated counterclockwise by the OFF control of the electromagnetic solenoid 50 (FIG. 4). As a result, the blower opening 43 is closed by the rotated blower guide plate 45, so that the cool air blown from the cooling device 30 is sent to the upper side of the refrigerator through the upper end opening 41 (indicated by a chain line arrow in the figure). The whole area inside the refrigerator is cooled by the sent cooling flow.
[0028]
FIG. 4 is a functional block diagram showing a control system relating to a cooling device in the above-described paper pack vending machine. As shown in the figure, the control unit 15 provided in the paper pack vending machine 1 includes a cooling device 30 having an evaporator 31 (cooler) and a condensing unit 34, a blowing fan 32, and a blowing motor for driving the blowing fan. 35, a blower switching controller 39, a blower switching guide means 42, an electromagnetic solenoid 50, and a thermistor 36 (temperature detecting means) for detecting the temperature in the refrigerator.
[0029]
The blower switching control device 39 has a function of operating the blower switching guide means 42 based on the internal temperature detected by the thermistor 36 to switch between zone cooling control and whole area cooling control. The blower fan 32 is driven by the blower motor 35 and has a function of circulating the cooling air from the cooling device 40 into the storage. The control unit 15 has a function of totally controlling the operation of each of these components.
[0030]
FIG. 5 is a flowchart showing the overall control configuration of the paper pack vending machine of the present invention. That is, the cooling control method by the cooling device in the paper pack vending machine of the present invention includes (1) a zone cooling step (step S510), (2) an entire area cooling step (step S520), and (3) a temperature detecting step (step (S530), and (4) a blower switching control step (step S540). First, each of the processing steps (1) to (4) will be briefly described.
[0031]
(1) The zone cooling step is a processing step of cooling a lower region in a refrigerator of a paper pack vending machine by a cool air flow. (2) The whole area cooling step is a control step of cooling the whole area in the refrigerator. (3) The temperature detecting step is a processing step of detecting the temperature in the refrigerator by the thermistor 36 as a temperature detecting means. (4) The ventilation switching control step is a processing step of operating the ventilation switching means 42 based on the temperature detected by the thermistor 36 to switch the cooling step to one of the zone cooling control step and the whole area cooling control step. .
[0032]
Hereinafter, the cooling control method in the paper pack vending machine according to the present invention will be described in detail with reference to FIGS. FIG. 6 is a flowchart showing a processing procedure of a cooling control method at the time of initial pull-down of a paper pack vending machine, FIG. 7 is a flowchart showing a processing procedure of a cooling control method at the time of operation of a paper pack vending machine, and FIG. And a graph showing the transition of the pull-down time of the NEXT product when the present embodiment is applied.
[0033]
That is, as shown in the flowchart of FIG. 6, first, the state of the paper pack vending machine 1 at the time of the initial pull-down is determined based on whether or not the power is ON (step S600). Cooling control by cooling is performed (step S610). Here, the initial pull-down time refers to the timing of normal loading when a vending machine is newly installed other than when the power is turned on. Further, as described above, the zone cooling control is a control for circulating and blowing cool air from the cooling device 30 toward a lower part in the refrigerator for the purpose of cooling NEXT products to be sold first.
[0034]
Next, the temperature inside the refrigerator is detected by the thermistor 36 (step S620), and based on the detected temperature detected by the thermistor 36, it is determined whether the temperature inside the refrigerator is the reference cooling temperature (10 ° C. or lower). A determination is made (step S630). If the temperature in the refrigerator is equal to or lower than the reference cooling temperature (10 ° C. or less) (step S630: affirmative), the entire area cooling is performed by activating the ventilation switching guide means 42 (FIG. 4). Control is performed (step S640). Here, as described above, the whole area cooling control is control for circulating and sending cool air from the cooling device 30 to the whole area in the refrigerator. The above is the processing procedure of the cooling control method at the time of the initial pull-down of the paper pack vending machine.
[0035]
Next, a processing procedure during operation of the paper pack vending machine will be described. That is, first, it is determined whether or not the vending machine is operated (step S700). During the operation (Yes at step S700), the temperature in the refrigerator is detected by the thermistor 36 (step S710). Then, it is determined whether or not the temperature T detected by the thermistor 36 is approaching the reference cooling temperature T1 (10 ° C. or lower) (step S720).
[0036]
When the temperature T is approaching the reference cooling temperature T1 (10 ° C.) (Yes at Step S720), the zone cooling control process by the zone cooling control is performed again (Step S721). The process of determining whether the temperature T is approaching the reference cooling temperature T1 (10 ° C. or less) in step 720 is performed when the temperature T once becomes 10 ° C. or less so that the health code does not operate. Is not to be 10 ° C. or more.
[0037]
On the other hand, if the temperature T has not approached the reference cooling temperature T1 (No at Step S720), then it is determined whether the temperature T detected at Step S730 is equal to or lower than the appropriate temperature T2 (Step S720). Step S730). Here, the appropriate temperature T2 is a temperature at which the user drinks the cold beverage, and specifically, indicates the temperature T at which the cooling temperature is reduced to about half of the reference cooling temperature T1. Here, the temperature value of the optimum temperature T2 is selected to be a temperature value that is approximately half of the reference cooling temperature T1 because of the width between the temperature at which the entire area cooling control is switched to the zone cooling control and the air blowing. This is to reduce the number of operations by the switching means 42.
[0038]
If the temperature T is equal to or lower than the appropriate temperature T2 as determined in step S730 (Yes in step S730), the entire area cooling control is performed (step S731). More specifically, as shown in FIG. 3B, by operating the air supply switching guide means 42 and closing the air supply guide plate 35, the entire area cooling control for the entire area in the refrigerator is performed. If the temperature T satisfies the appropriate temperature T2 <temperature T <reference cooling temperature T1 as determined in step S740, the control is continued as it is.
[0039]
Hereinafter, the operation and effect of the present invention will be described with reference to FIG. Here, the diagram P is a graph showing the transition of the pull-down time for the NEXT product according to the present invention. That is, as shown in FIG. 8, when the temperature is detected by the thermistor 36 and it is determined that the temperature T in the refrigerator has approached from the appropriate temperature T2 to the reference cooling temperature T1 (point A in the diagram), The control for switching from the entire area cooling control to the zone cooling control is performed. Therefore, before the temperature T reaches the reference cooling temperature T1, the internal temperature T can be reduced to the appropriate temperature T2 (point B in the diagram).
[0040]
On the other hand, when it is determined that the temperature T has approached the appropriate temperature T2 again, the cooling control is switched again from the zone cooling control to the entire area cooling control. As described above, in the present invention, the temperature T can be stabilized in the range between the appropriate temperature T2 and the reference cooling temperature T1 by repeatedly performing the cooling control from the entire area cooling control to the zone cooling control. Here, the ON / OFF control for operating the cooling device 30 is also performed based on the temperature detected by the thermistor 36, but in this case, the control is different from that of the above-described ventilation switching control device 39.
[0041]
As described above, according to the present invention, the paper pack vending machine is provided with the thermistor for detecting the temperature in the refrigerator, and based on the temperature detected by the thermistor, controls the operation of the ventilation switching guide means. , The zone cooling control and the whole area cooling control are alternately performed, so that the temperature of the product can be maintained at the specified sales temperature while maintaining the cooling and cooling. As a result, the pull-down time can be shortened from the restart of the sales after the supply of the products (power ON) to the cooling of the products stored in the lower region in the rack to the appropriate temperature for sales. Specifically, the cooling time (pull-down time) for the NEXT product can be reduced even when the operation is switched from the hot product to the cold product at the turn of the season.
[0042]
In addition, when products sold by a paper pack vending machine are products such as dairy products that need to maintain their quality by low-temperature cooling, products once cooled to 10 ° C or less due to the regulations of the Food Sanitation Law may A warning (health code) is activated when the temperature reaches 10 ° C. or higher (continues for a certain period of time). However, in the present invention, the operation of the “health code” can be avoided reliably.
[0043]
In the above-described embodiment, an electromagnetic solenoid is employed as an actuator for operating the wind direction guide mechanism 10. However, the present invention is not limited to this. For example, the operation of the guide plate is controlled by a link mechanism or the like. You can also. Further, in the above-described embodiment, the paper pack vending machine 1 for selling paper pack products in particular is illustrated, but the present invention can be applied to other types of beverages. It is possible.
[0044]
【The invention's effect】
As described above, according to the paper pack vending machine according to the first aspect of the present invention, the operation of the ventilation switching guide means is controlled based on the temperature detected by the temperature detection means for detecting the temperature in the refrigerator. By doing so, the temperature of the NEXT product can always be kept at the reference cooling temperature by switching between the entire area cooling control and the zone cooling control, so that the pull-down time can be reduced and the power consumption can be reduced. There is an effect that can be. Further, since the running cost after the installation of the paper pack vending machine can be reduced, energy saving can be realized, thereby contributing to prevention of global warming.
[0045]
Further, according to the paper pack vending machine according to claim 2, the cooling device is configured by the wind tunnel having the cooler and the blower fan therein, and the wind tunnel is connected to the wind tunnel. Since the air supply duct is provided and the air supply switching guide means is provided inside the air supply duct, the switching between the entire area cooling control and the zone cooling control can be reliably performed by the operation of the air supply switching guide means.
[0046]
Further, according to the paper pack vending machine according to the third aspect, the blower guide switching means includes a blower guide plate and an electromagnetic solenoid that operates the blower guide plate, and is controlled by the electromagnetic solenoid to turn on / off. Since the switching of the cool air flow can be performed, the switching between the entire area cooling control and the zone cooling control can be reliably performed by operating the electromagnetic solenoid.
[0047]
Further, according to the paper pack vending machine according to the fourth aspect, when the temperature detected by the temperature detecting means rises to the reference cooling temperature, which is an appropriate temperature for sale, the blower switching control device controls the lower part of the inside of the refrigerator. Zone cooling control for circulating cool air through the area is performed, and when the temperature is detected to drop to about half of the reference cooling temperature, the entire area cooling control is performed by switching the air blowing guide switching means. There is no need for a long preparation time until the NEXT product stored in the lower area of the rack is cooled down to a suitable temperature for sale after the sales restart (power ON), and the pull-down time can be reduced and the power consumption can be reduced. There is an effect that can be achieved.
[0048]
Further, according to the cooling control method by the cooling device according to claim 5, a zone cooling step of cooling a lower region in the refrigerator by a cool air flow, an entire region cooling process of cooling an entire region in the refrigerator, A temperature detecting step of detecting a temperature in the refrigerator by a temperature detecting means provided in the inside, and cooling control of one of the zone cooling control step and the whole area cooling control step based on the temperature detected by the temperature detecting step. The cooling control is switched from the whole-area cooling control step to the zone cooling control step by the ventilation switching control step based on the inside temperature detected by the temperature detection step. By suppressing the circulation of room-temperature air circulated from the upper part, the temperature of the NEXT product is prevented from rising, thereby reducing the pull-down time After which it is possible to shorten an effect that it is possible to reduce power consumption due to the reduction of the operation of the cooling device.
[Brief description of the drawings]
FIG. 1 is a side view showing an overall schematic configuration of a paper pack vending machine according to an embodiment of the present invention.
FIG. 2 is an enlarged view of a lower part of the paper pack vending machine shown in FIG.
FIG. 3A is a diagram illustrating an operation state of a ventilation guide switching unit at the time of zone cooling control, and FIG.
FIG. 4 is a functional block diagram showing a configuration of the paper pack vending machine shown in FIG.
FIG. 5 is a flowchart showing an overall control process of a cooling control method by the paper pack vending machine shown in FIG. 1;
6 is a flowchart showing a control processing procedure of a cooling control method by the paper pack vending machine shown in FIG. 1.
FIG. 7 is a flowchart showing a processing procedure of a cooling control method during operation of the paper pack vending machine.
FIG. 8 is a correlation diagram with the internal temperature of the paper pack vending machine and the pull-down time based on the temperature of the NEXT product.
FIG. 9 is a correlation diagram between the inside temperature of the paper pack vending machine and the pull-down time based on the temperature of the NEXT product.
[Explanation of symbols]
1 Paper pack vending machine
10. Cabinet body
20 Front outside door
21 racks
23 Product exit
25 horizontal conveyor
30 Cooling device
31 Evaporator (cooler)
32 blower fan
33 Wind Tunnel
34 Condensing unit
35 Blow motor
36 Thermistor
39 Ventilation switching controller
40 outlet duct
41 Opening
42 Ventilation switching guide means
43 Vent
45 Ventilation guide plate
46 Rotation axis
50 Electromagnetic solenoid

Claims (5)

In a paper pack vending machine that cools multiple paper pack products stored in the refrigerator as cold products,
The paper pack vending machine, a cooling device that cools the paper pack products stored in the refrigerator by circulating air with cool air,
Blowing switching guide means having a function of switching to either the whole area blowing control for circulating the cool air sent from the cooling device to the whole area in the refrigerator or the zone cooling blowing control for circulating in the lower region in the refrigerator,
A paper comprising: a temperature detecting means for detecting the temperature in the refrigerator; and a blower switching control device for controlling the operation of the blower switching guide means based on the temperature detected by the temperature detecting means. Pack vending machine. The cooling device is configured by a wind tunnel unit having a cooler and a blower fan therein, the wind tunnel unit includes an outlet duct, and the blower switching guide unit is provided inside the outlet duct. The paper pack vending machine according to claim 1, characterized in that: 2. The air supply guide switching means includes an air supply guide plate and an electromagnetic solenoid that operates the air supply guide plate, and switches the cool air flow by ON / OFF control by the electromagnetic solenoid. 2. The paper pack vending machine according to 2. When the temperature detected by the temperature detection means rises to just before reaching a reference cooling temperature, the blower switching control device performs zone cooling control for circulating cool air in a lower region in the refrigerator, and the temperature is set to a reference value. 4. The paper pack vending machine according to claim 1, wherein when the temperature drop is detected to approximately half of the cooling temperature, the whole area cooling control is performed by switching the blower guide switching means. In a cooling control method by a cooling device of a paper pack vending machine for cooling a plurality of paper pack products stored in a refrigerator as cold products, a zone cooling step of cooling a lower region in the refrigerator by a cool air flow, An entire area cooling step of cooling the entire area in the refrigerator, a temperature detecting step of detecting a temperature in the refrigerator by temperature detecting means provided in the refrigerator, and the zone cooling based on the temperature detected in the temperature detecting step. A cooling control method using a cooling device, comprising: a ventilation switching control step of switching to any one of a cooling step of a control step and an entire area cooling control step.

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