JPH0981850A - Automatic vending machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively evaporate frost removing water from a cooler based upon structure capable of easily and smoothly detaching an evaporation tray. SOLUTION: When a fan 22 arranged so as to cool a condenser 20 in a refrigeration cycle and send air cooling the condenser 20 up to an evaporation tray 23 is driven for a prescribed time immediately after the stop of a compressor 19 during the stop of the compressor 19, defrosting water from the cooler is evaporated unless a heat discharging pipe is arranged in the tray 23. The operation time of the fan 22 during the stop of the compressor 19 is determined in accordance with the temperature and humidity of outside air, the driven frequency of the cooler, a month (season), and the cumulative operation rate of the compressor 19 per a prescribed time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vending machine having a refrigerating cycle for cooling a commodity storage room and having an improved structure for evaporating defrost water of a cooler of the refrigerating cycle.

[0002]

2. Description of the Related Art Conventionally, an automatic vending machine has been provided with a refrigeration cycle for cooling a product storage room, and defrosting water for a cooler of the refrigeration cycle is placed in a machine room. It is received by the evaporating dish, is heated by a heat radiating pipe arranged in the evaporating dish, and is sucked up by an evaporating cloth having a lower portion located in the evaporating dish to be evaporated.

[0003]

However, in the above-mentioned one, since the heat dissipation pipe is arranged in the evaporating dish, even if the evaporating dish is to be removed when necessary for cleaning or the like,
Not easily removable. Further, if it is forcibly removed, the heat radiation pipe may be bent or bent, which may cause gas leakage.

The present invention has been made in view of the above circumstances, and therefore an object thereof is to provide an automatic vending machine capable of evaporating defrosting water with a structure in which the evaporation dish can be easily removed without difficulty. is there.

[0005]

In order to achieve the above object, the vending machine of the present invention comprises a refrigerating cycle for cooling the product storage room, and the defrosting water of the cooler of the refrigerating cycle is machined. In a device for receiving and evaporating in an evaporation dish placed in a chamber, a fan provided so that the wind that has cooled the condenser of the refrigeration cycle and deprived of the heat of the condenser reaches the evaporation tray portion is used while the compressor is stopped. It is characterized in that it is operated for a predetermined time immediately after the stop.

According to the above means, the operation of the fan while the compressor is stopped causes the condenser of the refrigeration cycle to cool, and the wind that has taken away the heat of the condenser reaches the evaporation tray portion,
The evaporation of defrost water accumulated in the evaporation dish is promoted.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described below with reference to FIGS. First, FIG. 2 shows a vending machine body 1, which has first to fourth product storage chambers 2 to 5 therein. Of the first to fourth product storage chambers 2 to 5, the first product storage chamber 2 has a cooler 6 and a circulation fan 7, and circulates the cool air generated in the cooler 6. Therefore, it is only for refrigeration.

On the other hand, the second product storage chamber 3 has a heater 8 and a circulation fan 9 for circulating the cool air distributed from the first product storage chamber 2 and the heater 8 The specifications can be switched between refrigerating and warming by switching the circulation of the warm air generated in.

The third commodity storage chamber 4 has a cooler 10, a heater 11 and a circulation fan 12, and circulates the cool air generated by the cooler 10 and the heater 11
The specifications can be switched between refrigerating and warming by switching the circulation of the warm air generated in.

Further, the fourth product storage chamber 5 has a heater 13 and a circulation fan 14, and circulates the cool air distributed from the third product storage chamber 4, and the heater 13
The specifications can be switched between refrigerating and warming by switching the circulation of the warm air generated in.

In order to switch these specifications, between the first product storage room 2 and the second product storage room 3, and between the third product storage room 4 and the fourth product storage room 5. Partition shutters 15 and 16 for opening and closing the ventilation openings between them are provided, and the ventilation openings behind the heaters 8 and 13 are opened and closed in the second and fourth product storage chambers 3 and 5, respectively. Shutter 1
7 and 18 are provided.

Next, FIG. 3 shows a machine room 21 in which a compressor 19 and a condenser 20 which form a refrigeration cycle with the coolers 6 and 10 are arranged.
In FIG. 1, a cooling fan 22 is arranged almost at the center, a condenser 20 is arranged on the windward side (lower side in the figure), and a compressor 19 is arranged on the leeward side (upper side in the figure). .
Therefore, the wind generated by the cooling fan 22 flows from the condenser 20 to the compressor 19 to cool the condenser 20 and the compressor 19, as shown by the arrow in the figure.

One side of the cooling fan 22 (right side in the figure)
The evaporating dish 23 is arranged in the cooling device 6, 10
The defrosting water is guided and received from. The wind that has cooled the condenser 20 and deprived the heat of the condenser 20 to the evaporation dish 23 is either directly or as shown by the arrow in the drawing, or directly on the wall surface 21a of the machine room 21.
When it hits and refracts, it reaches the evaporation tray 23.

An electric equipment box 24 is arranged on the other side of the cooling fan 22 (on the left side in the drawing), and inside the electric equipment box 24 is shown in FIG.
The control device 25 shown in FIG. This controller 25
Is mainly composed of a microcomputer, and a switch operation signal is transmitted from a switch input section 26 including various operation switches including setting operation switches for setting the specifications of the first to fourth product storage chambers 2 to 5. In addition to being input, a detection signal is input from temperature sensors 27 to 30 that detect the temperatures of the first to fourth product storage chambers 2 to 5, and a temperature sensor 31 that detects the temperature of the outside air.
Detection signals are respectively input from the humidity sensor 32 which detects the humidity of the outside air.

Based on those inputs and the control program stored in advance, the control device 25 controls the compressor 19, the solenoid valves 33 and 34 for switching the supply of the refrigerant to the coolers 6 and 10, and the cooling. Fan 2
2. A drive control signal is supplied to the drive circuit 35 for driving the circulation fans 7, 9, 12, 14 and the heaters 8, 11, 13.

Here, FIG. 1 shows the control contents of the compressor 19 and the cooling fan 22 by the control device 25. As is apparent from FIG. 1, the control device 25
The operation of the compressor 19 is controlled intermittently (on / off) by detection signals from the temperature sensors 27 to 30 that detect the temperatures of the first to fourth product storage chambers 2 to 5,
During each stop (OFF), the cooling fan 22 is extended and operated for a predetermined time T1 immediately after the stop.

As described above, the cooling fan 22 blows air from the condenser 20 to the compressor 19 to cool the condenser 20 and the compressor 19, and cools the condenser 20 to remove the heat of the condenser 20. The taken wind is directly or on the wall surface 21 of the machine room 21.
Since it hits a and is refracted to reach the evaporation tray 23 portion, as described above, the cooling fan 22 is extended for a predetermined time T immediately after the compressor 19 is stopped (off). By making the evaporation dish 2
Warm air continues to flow on the surface of the defrosted water that has accumulated in 3 to accelerate the evaporation of the defrosted water.

FIG. 5 shows the relationship between the wind speed and the amount of water evaporation in such a situation, and it can be seen that the more the wind is, the more water is evaporated. Thus, in the case of this configuration, the defrosting water can be effectively evaporated without disposing a heat dissipating pipe in the evaporating dish 23 unlike the conventional one. If it is not, the evaporation dish 23 can be easily removed, and the heat radiation pipe is not bent or bent, so that the possibility of causing gas leakage can be eliminated.

In contrast to the above, FIG. 6 shows a second embodiment of the present invention, and in particular, the compressor 19 is connected to the coolers 6 and 10.
Forced to stop for defrosting, eg night time T
2 shows that the cooling fan 22 is operated by extending for a predetermined time T3 (in this case, the same time as T2) while the compressor 19 is forcibly stopped.

When the compressor 19 is forcibly stopped to defrost the coolers 6 and 10, the amount of defrost water from the coolers 6 and 10 to the evaporation tray 23 also increases.
In such a case, by operating the cooling fan 22 as described above, the defrosting water accumulated in the evaporation tray 23 can be effectively evaporated, and the risk of overflow of the evaporation tray 23 can be eliminated.

FIG. 7 shows a third embodiment of the present invention.
According to the temperature of the outside air detected by the temperature sensor 31, the higher the detected temperature is, the longer the operation time of the cooling fan 22 while the compressor 19 is stopped is shown.

When the temperature of the outside air is high, the coolers 6 and 10
The operating rate is increased, the amount of frost is increased, and the amount of defrost water received in the evaporation dish 23 is also increased. On the other hand, by operating the cooling fan 22 as described above, the cooling fan 22 can be operated at an appropriate time according to the amount of defrost water, and the defrost water can be effectively evaporated. At the same time, the cooling fan 22 can be operated efficiently, and waste of power consumption can be eliminated.

FIG. 8 shows a fourth embodiment of the present invention.
According to the humidity of the outside air detected by the humidity sensor 32, the higher the detected humidity is, the longer the operating time of the cooling fan 22 while the compressor 19 is stopped is shown.

Even when the humidity of the outside air is high, the coolers 6 and 10
Is large, and the amount of defrost water received in the evaporation tray 23 is also large. On the other hand, as described above, the cooling fan 2
As in the third embodiment, the cooling fan 22 can be operated in an appropriate time according to the amount of defrosting water by operating No. 2, so that the defrosting water can be effectively evaporated and the fan 22 can be operated. Can be operated efficiently, and waste of power consumption can be eliminated.

FIG. 9 shows a fifth embodiment of the present invention.
Depending on the specification settings of the first to fourth product storage rooms 2 to 5,
It is shown that the operating time of the cooling fan 22 is extended as the number of operating coolers increases.

In this case, specifically, when all of the first to fourth product storage chambers 2 to 5 are set to the refrigerating specification, or
Alternatively, in the case where only the fourth product storage room 5 among them is set to the warming specification and the remaining first to third product storage rooms 2 to 4 are set to the refrigerating specification, both of the coolers 6 and 10 are set. When operating, the cooling fan 22 is operated for a predetermined time, while only the first product storage chamber 2 is set to the refrigerating specification, and the remaining second to fourth product storage chambers 3 to 5 are set to the warming specification. When set, or when the first and second product storage chambers 2 and 3 are set to refrigerating specifications and the third and fourth product storage chambers 4 and 5 are set to hot storage specifications, the cooler When only 6 is operated, the cooling fan 22 is not operated.

When the number of operations of the cooler is large, the amount of frost is generally large, and the amount of defrost water received in the evaporation dish 23 is large. On the other hand, by operating the cooling fan 22 as described above, as in the third embodiment,
Since the cooling fan 22 can be operated in an appropriate time according to the amount of defrost water, the defrost water can be effectively evaporated, and the cooling fan 22 can be operated efficiently, thus wasting power. It can be omitted.

FIG. 10 shows a sixth embodiment of the present invention. As the temperature of the outside air detected by the temperature sensor 31 is higher, the operating time of the cooling fan 22 while the compressor 19 is stopped is longer and the cooler is cooler. The more the number of
It shows the one in which the operating time of the cooling fan 22 is lengthened. Even in this case, the cooling fan 22 can be operated in an appropriate time according to the amount of the defrost water, the defrost water can be effectively evaporated, and the cooling fan 22
Can be operated efficiently, and waste of power consumption can be eliminated.

FIG. 11 shows a seventh embodiment of the present invention. As the humidity of the outside air detected by the humidity sensor 32 is higher, the operating time of the cooling fan 22 while the compressor 19 is stopped is longer and the cooler is also cooler. It is shown that the operating time of the cooling fan 22 is made longer as the number of operations of is increased. Even in this case, the cooling fan 22 can be operated in an appropriate time according to the amount of defrosting water, so that the defrosting water can be effectively evaporated and the cooling fan 22 can be operated efficiently. It is possible to reduce the waste of power consumption.

FIG. 12 shows an eighth embodiment of the present invention, which is an arithmetic mean of the set time according to the temperature of the outside air detected by the temperature sensor 31 and the set time according to the humidity of the outside air detected by the humidity sensor 32. , The cooling fan 22 is operated while the compressor 19 is stopped. For example, as shown in the figure, the temperature of the outside air detected by the temperature sensor 31 is 10 [° C.], and the set time by this is 20 [minutes].
On the other hand, if the humidity of the outside air detected by the humidity sensor 32 is 80 [%] and the set time by this is 40 [minutes], the cooling fan for 30 [minutes] which is the arithmetic mean value thereof. 22 is driven.

By doing so, it is possible to operate the cooling fan 22 for a time period in which the temperature and humidity of the outside air are well balanced, and to operate more effectively and efficiently. In addition, in this case, the operating time of the fan is set to be longer as the number of operations of the cooler increases, and by doing so, the operation can be performed more effectively and efficiently.

FIG. 13 shows a ninth embodiment of the present invention, which has a monthly recognition function, and the cooling fan 22 with the compressor 19 stopped during months (seasons) where the humidity of the outside air is higher, such as May to July. It shows the one that is designed to prolong the driving time. By doing so, the cooling fan 22 can also be operated according to the amount of defrost water.

14 and 15 show a tenth embodiment of the present invention, which is a function for calculating a cumulative operating rate (a ratio of cumulative ON time to cumulative ON / OFF time) of the compressor 19 for a predetermined time, for example, one day. And the operation time of the cooling fan 22 while the compressor 19 is stopped is increased as the calculation result increases. In this case, since it is cumulative per day, the operation of the cooling fan 22 for the time set by the calculation result is sequentially executed on the next day as shown by the arrow in FIG. Even in this case, the cooling fan 22 can be operated in an appropriate time according to the amount of defrost water.

The cumulative operating rate of the compressor 19 is 1
By performing the operation on several cycles of on / off instead of on the day, the operation of the cooling fan 22 for the time set by the calculation result can be immediately executed. In addition, the cooling fan 2 is operated at such a cumulative operating rate of the compressor 19.
In order to set the operation time of No. 2, the one set according to the temperature and the humidity of the outside air detected by the temperature sensor 31 and the one set according to the operation number of the cooler are executed in combination. Is also good.

[0035]

The present invention is as described above.
It has the following effects. According to the vending machine of claim 1,
Effectively removes defrost water by operating a fan that cools the condenser of the refrigeration cycle and draws heat from the condenser to reach the evaporation tray portion for a predetermined time immediately after the compressor stops. Since the heat can be evaporated, the heat dissipating pipe need not be arranged in the evaporating dish, and the evaporating plate can be easily removed without being disturbed by the heat dissipating pipe, and the heat dissipating pipe can be prevented from being bent or bent.

According to the vending machine of claim 2, the fan is operated while the compressor for defrosting the cooler is forcibly stopped, so that the defrosting water accumulated in the evaporation tray is effectively evaporated. As a result, it is possible to eliminate the risk of flooding from the evaporation dish.

According to the vending machine of claim 3, the temperature of the outside air is detected, and the higher the detected temperature of the outside air, the more the
By increasing the fan operation time while the compressor is stopped, the fan can be operated for an appropriate time according to the amount of defrost water accumulated in the evaporation tray, and the defrost water can be evaporated effectively. In addition, the fan can be operated efficiently.

According to the vending machine of claim 4, the humidity of the outside air is detected, and the higher the detected humidity of the outside air,
By increasing the operating time of the fan while the compressor is stopped, the fan can be operated at an appropriate time according to the amount of defrosting water that accumulates in the evaporation dish, and evaporation of defrosting water can be prevented. Not only can this be done effectively, but the fan can also be operated efficiently.

According to the automatic vending machine of the fifth aspect, a plurality of product storage rooms are provided and a plurality of coolers are also provided, and the operating time of the fan is extended as the number of operating coolers increases. As a result, it is possible to operate the fan in an appropriate time according to the amount of defrosting water accumulated in the evaporating dish, effectively evaporate the defrosting water, and operate the fan efficiently. it can.

According to the vending machine of the sixth aspect, the function of recognizing each month is provided, and the operating time of the fan while the compressor is stopped is made longer as the month (season) in which the humidity of the outside air is higher. The fan can be operated in an appropriate time according to the amount of defrosting water accumulated in the evaporation dish, the defrosting water can be effectively evaporated, and the fan can be operated efficiently.

According to the vending machine of claim 7, it has a function of calculating the cumulative operating rate of the compressor per predetermined time, and the more the calculation result is, the longer the operating time of the fan when the compressor is stopped. By doing so, it is possible to operate the fan at an appropriate time according to the amount of defrosting water accumulated in the evaporation tray, to effectively evaporate the defrosting water, and to operate the fan efficiently. can do.

[Brief description of drawings]

FIG. 1 is a time chart showing a first embodiment of the present invention.

FIG. 2 is an overall cross-sectional plan view

FIG. 3 is a plan view of a machine room portion.

FIG. 4 is a schematic electrical configuration diagram.

[Figure 5] Characteristic diagram

FIG. 6 is a time chart showing a second embodiment of the present invention.

FIG. 7 is a set characteristic diagram showing a third embodiment of the present invention.

FIG. 8 is a set characteristic diagram showing a fourth embodiment of the present invention.

FIG. 9 is a setting explanatory view showing a fifth embodiment of the present invention.

FIG. 10 is a set characteristic diagram showing a sixth embodiment of the present invention.

FIG. 11 is a set characteristic diagram showing a seventh embodiment of the present invention.

FIG. 12 is a set characteristic diagram showing an eighth embodiment of the present invention.

FIG. 13 is a setting explanatory view showing a ninth embodiment of the present invention.

FIG. 14 is an explanatory view of setting 1 showing a tenth embodiment of the present invention.

FIG. 15 is an explanatory diagram of setting 2

[Explanation of symbols]

2 to 5 are product storage rooms, 6 and 10 are coolers, 19 is a compressor, 20 is a condenser, 21 is a machine room, 22 is a cooling fan (fan), 23 is an evaporating dish, 25 is a controller, 3
1 is a temperature sensor, 32 is a humidity sensor, and T1 and T3 are operating times of the fan while the compressor is stopped.

Claims (7)

[Claims] 1. A condenser comprising a refrigeration cycle, comprising: a refrigeration cycle for cooling a commodity storage room; An automatic vending machine, characterized in that a fan provided so that the wind from which the heat of the condenser has been taken reaches the evaporation tray portion is operated for a predetermined time immediately after the compressor is stopped while the compressor is stopped. 2. The vending machine according to claim 1, wherein the fan is operated during forced stop of the compressor for defrosting the cooler. 3. The vending machine according to claim 1, wherein the temperature of the outside air is detected, and the operating time of the fan while the compressor is stopped is extended as the detected outside air temperature is higher. . 4. The vending machine according to claim 1, wherein the humidity of the outside air is detected, and the operating time of the fan while the compressor is stopped is extended as the detected outside air humidity is higher. . 5. A plurality of product storage rooms are provided, and a plurality of coolers are also provided, and the operating time of the fan is extended as the number of operations of the coolers increases. Vending machine. 6. The vending machine according to claim 1, wherein the vending machine has a monthly recognition function, and the operating time of the fan while the compressor is stopped is extended as the humidity of the outside air increases. 7. The compressor has a function of calculating a cumulative operation rate per predetermined time, and the operation time of the fan while the compressor is stopped is extended as the calculation result increases. Item 1. The vending machine according to item 1.