JP3605890B2 - Vending machine temperature control method and device - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a temperature control method and a control device for a vending machine for canned beverages and the like.
[0002]
[Prior art]
In a conventional vending machine, uniform temperature control is performed so as to maintain a substantially constant temperature even when geographical or seasonal environmental conditions change. Conventional vending machines are equipped with a setting device for setting the target value of the internal temperature, but once the target temperature is set when the vending machine is installed, it is not adjusted thereafter. In many cases, the operation is performed in the same setting condition. One of the reasons is that, as shown in FIG. 5, the conventional target temperature setting device is set at, for example, 11 levels from 0 to 10, so that setting adjustment work becomes complicated. Is mentioned. In addition, when there are a plurality of product hangars, for example, a left warehousing, a middle warehousing, and a right warehousing, the adjustment work becomes more complicated, and the target temperature is reset or adjusted each time according to the installation location or season. The situation was difficult even with the number of vending machines installed.
[0003]
[Problems to be solved by the invention]
However, the temperature (for example, the temperature at which the user feels delicious) at the time of drinking of a canned beverage or the like, whether the beverage is a hot beverage or a cold beverage, is a relative temperature between the human perceived temperature and the temperature of the surrounding environment (for example, the outside air temperature). It is known as an empirical fact that the temperature is determined by the typical temperature difference, and it is not always necessary to maintain the temperature inside the vending machine always constant throughout the year or day. Alternatively, the internal temperature can be changed depending on the weather or the like. Also, there is a strong demand for appropriate temperature control from the viewpoint of effective use of electric energy and energy saving.
[0004]
Accordingly, an object of the present invention is to provide a temperature control method and apparatus for a vending machine which can solve the above-mentioned problems of the conventional example, greatly reduce the trouble of changing the setting of the target temperature, and can save energy. It is in.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, an invention according to claim 1 is a temperature control method for a vending machine that controls a product temperature based on a target temperature and a detected temperature in a refrigerator. 1 to 12 ° C.) for each of a predetermined range of temperatures (for example, −1 to 2, 0 to 3, 1 to 4...), And a step-wise adjustment temperature level for each of the grouped temperature ranges. (0-10) are assigned and classified, and the assigned adjustment levels (0-10) are classified into a plurality of upper temperature blocks (for example, H, L, M), and the respective upper temperature blocks (for example, H, L, M) are classified into a plurality of stages of lower temperature blocks (Hh, Hm, Hl, Mh, Mm, Ml, Lh, Lm, Ll) for each predetermined number of regulated temperature levels (for example, 2). , The upper temperature block (for example, H, L, M), the adjusted temperature level belonging to the selected upper temperature block is set as the target temperature, and further, the lower temperature block (Hh, Hm, H1, Mh, Mm) is set. , Ml, Lh, Lm, L1), the adjustment temperature level belonging to the selected lower temperature block is set as the target temperature.
[0006]
According to a second aspect of the present invention, in a temperature control method for a vending machine for controlling a product temperature based on a target temperature and a detected temperature in a refrigerator, a controllable temperature range (for example, −1 to 12 ° C.) is set to a predetermined range. (For example, −1 to 2, 0 to 3, 1 to 4...), And classify by assigning adjusted temperature levels (0 to 10) of each grouped temperature range. The adjustment levels are classified into at least three high-order temperature blocks of high (H), medium (M), and low (L), and each of the high-order temperature blocks (H, M, L) is determined by a predetermined adjustment temperature level number. For example, every (2) is classified into at least three lower temperature blocks (Hh, Hm, Hl, Mh, Mm, Ml, Lh, Lm, Ll) of high (h), medium (m), and low (l). And one of the upper temperature blocks (H, M, L) When selected, an adjusted temperature level belonging to the selected upper temperature block is set as a target temperature, and any of the lower temperature blocks (Hh, Hm, Hl, Mh, Mm, Ml, Lh, Lm, Ll) is set. When is selected, the adjustment temperature level belonging to the selected lower temperature block is set as the target temperature.
[0007]
According to a third aspect of the present invention, in the temperature control method of a vending machine for controlling a product temperature based on a target temperature and a detected temperature in a refrigerator, a total controllable temperature range (for example, −1 to 12 ° C.) is set. The temperature is grouped for each temperature in the range (for example, −1 to 2, 0 to 3, 1 to 4...), And a stepwise adjustment temperature level (0 to 110) is assigned to each of the grouped temperature ranges. And classify the allocated adjustment levels into at least three high temperature blocks of high (H), medium (M) and low (L), and classify each of the upper temperature blocks (H, M, L). At least three (3) lower temperature blocks (Hh, Hm, Hl, Mh, Mm, Ml, Lh, Lm, Ll) around the vending machine When any of the upper temperature blocks (H, M, L) is selected according to the outside air temperature, the commodity temperature is controlled with the adjusted temperature level belonging to the selected upper temperature block as the target temperature, and When any of the lower temperature blocks (Hh, Hm, Hl, Mh, Mm, Ml, Lh, Lm, Ll) is selected according to the outside air temperature around the vending machine, the selected lower temperature block is selected. It is configured to control the product temperature using the adjusted temperature level belonging to the target temperature as the target temperature.
[0008]
According to a fourth aspect of the present invention, there is provided a temperature control device for a vending machine for controlling a product temperature based on a target temperature and a detected temperature in a refrigerator, wherein an outside air temperature detecting means for detecting an outside air temperature around the vending machine. 5) and a controllable temperature range (for example, −1 to 12 ° C.) is grouped for each of a predetermined range of temperatures (for example, −1 to 2, 0 to 3, 1 to 4...), And each of the grouped The temperature ranges (0 to 110) are assigned to each of the temperature ranges and classified, and the assigned adjustment levels (0 to 110) are at least high (H), medium (M), and low (L). ) Are classified into three stages of upper temperature blocks, and each of the upper temperature blocks (H, M, L) is at least high (h) and medium (m) for each predetermined number of regulated temperature levels (for example, 2). , Low (l) three-stage lower temperature block (H , Hm, Hl, Mh, Mm, Ml, Lh, Lm, Ll) and classifies the upper temperature blocks (H, M, L) according to the outside air temperature detected by the outside air temperature detecting means (5). One of them is selected, the temperature is controlled using the adjusted temperature level belonging to the selected upper temperature block as the target temperature, and the lower temperature block (Hh, Hm, Hl, Mh, Mm, Ml, Lh, Lm, Ll), and control means (18) for performing temperature control using the adjusted temperature level belonging to the selected lower temperature block as a target temperature. Is done.
[0009]
[Action]
According to the first aspect of the present invention, first, when any of the upper temperature blocks (for example, H, L, M) is selected, the temperature range within the adjusted temperature level belonging to the selected upper temperature block. Is set as the target temperature, and the product temperature is controlled based on the target temperature and the detected temperature in the refrigerator. For example, when the upper temperature block (H) is selected, the temperature range (4 to 12 ° C.) within the adjusted temperature levels (5 to 10) belonging to the upper temperature block (H) is set as the target temperature.
[0010]
Further, when any of the lower temperature blocks (Hh, Hm, Hl, Mh, Mm, Ml, Lh, Lm, Ll) is selected, the temperature range within the adjusted temperature level belonging to the selected lower temperature block is set. The target temperature is set, and the product temperature is controlled based on the target temperature and the temperature detected in the refrigerator. For example, when the lower temperature block (Hh) is selected in the upper temperature block (H), the temperature range (8 to 12 ° C.) within the regulated temperature level (9 to 10) belonging to the lower temperature block (Hh) is set as the target. Set as temperature.
[0011]
As described above, when setting the target temperature, it is possible to select any one of the higher-order temperature blocks in a plurality of stages, that is, it is possible to set a large target temperature by one selection operation. It is possible to easily set or change the target temperature without requiring a multi-stage selection operation as described above. Further, when a more strict temperature setting is required, a subdivided target temperature can be set by a single selection operation of selecting one of the lower temperature blocks, as in the conventional case. It is possible to set or change the target temperature without requiring a multi-stage selection operation. Therefore, when setting the target temperature, it is possible to set an appropriate target temperature with a maximum of two selection operations, and it is easy to change the setting of the internal temperature according to the season, and it is possible to contribute to energy saving. .
[0012]
According to the second aspect of the present invention, one of the upper temperature blocks (H, M, L) classified into three practical levels of high (H), medium (M), and low (L) is selected. Then, the adjusted temperature level belonging to the selected upper temperature block is set as the target temperature. Furthermore, at least the lower temperature blocks (Hh, Hm, Hl, Ml, Mm, Ml, Lh, Lm, Ll) classified into three practical stages of high (h), medium (m), and low (l) When one of them is selected, a more subdivided adjusted temperature level belonging to the selected lower temperature block is set as the target temperature.
[0013]
In this way, when setting the target temperature, the operation of the invention according to claim 1 is exhibited in a practical form, and an appropriate target temperature can be set by a maximum of two selection operations. This makes it easy to change the temperature setting, which in turn contributes to energy saving.
[0014]
According to the invention described in claim 3, at least one of the upper temperature blocks (H, M, L) classified into three practical levels of high (H), medium (M), and low (L) is used. When selected, the adjusted temperature level belonging to the selected upper temperature block is set as the target temperature, and the temperature control is executed according to the target temperature. Furthermore, at least the lower temperature blocks (Hh, Hm, Hl, Ml, Mm, Ml, Lh, Lm, Ll) classified into three practical stages of high (h), medium (m), and low (l) When one of them is selected, a more subdivided adjusted temperature level belonging to the selected lower temperature block is set as the target temperature, and the temperature control is executed according to the target temperature.
[0015]
In this way, at the time of temperature control, an appropriate target temperature can be set by a maximum of two selection operations, the setting of the internal temperature according to the season can be changed, and the follow-up control to the set target temperature can be performed. Since the target temperature range can be determined and controlled based on the relative temperature difference with the temperature inside the refrigerator, energy saving operation is possible without cooling or heating the product storage more than necessary. Vending machine can be provided.
[0016]
According to the invention described in claim 4, the outside air temperature detecting means (5) detects the outside air temperature around the vending machine. The outside air temperature detection signal is input to the control means (18). The control means (18) selects one of the practical upper temperature blocks (H, M, L) classified into three stages according to the detected outside air temperature, and selects the selected upper temperature. An adjusted temperature level belonging to the block is set as a target temperature, and temperature control is executed according to the target temperature. Further, in order to perform fine control of the grain, the control means (18) performs lower-order temperature blocks (Hh, Hm, Hl, Mh, Mm, Ml, Ml, Ml, Ml) classified into three practical levels according to the detected outside air temperature. Lh, Lm, Ll), a more subdivided adjusted temperature level belonging to the selected lower temperature block is set as a target temperature, and temperature control is executed according to the target temperature. .
[0017]
As described above, the outside air temperature having a high correlation with the perceived temperature is monitored, and the target temperature range can be determined and controlled based on the relative temperature difference between the outside air temperature and the inside temperature. It is possible to provide a vending machine capable of performing energy-saving operation without excessively cooling or heating the inside.
[0018]
【Example】
Next, a preferred embodiment of the present invention will be described with reference to the drawings.
[0019]
FIG. 1 shows an embodiment of a vending machine 100 according to the present invention. The vending machine 100 includes three product storage columns 3A, 3B, 3C partitioned by the heat insulating partition 2, and column temperature measuring sensors 4A, 4B, which measure the temperatures in the respective product storage columns 3A, 3B, 3C. 4C, an outside air temperature measuring sensor 5 for measuring the outside air temperature around the vending machine 100, a controller for controlling the entire vending machine 100, a cooling device such as a condenser, a product discharging mechanism, and the like. And a mechanism unit 6. The product storage columns 3A to 3C correspond to product storage, the column temperature measuring sensors 4B to 4C correspond to product temperature detecting means, and the outside air temperature measuring sensor 5 corresponds to outside air temperature detecting means.
[0020]
FIG. 2 shows a configuration of the cooling device 10 of the vending machine 100. The cooling device 10 includes a compressor 11, a condenser (condenser) 12, an electronic expansion valve 13, a distributor 14, and three solenoid valves 15A, 15B, and 15C.
[0021]
Evaporators (evaporators) 16A, 16B, and 16C are connected to the respective solenoid valves 15A, 15B, and 15C via refrigerant pipes, respectively. The evaporators 16A, 16B, and 16C are connected to the product storage columns 3A, 3B, and 3C, respectively. , So that the product storage columns 3A, 3B, 3C can be cooled independently. In the above, the cooling mechanism including the evaporators 16A to 16C, the compressor 11, and the condenser 12 constitutes a temperature control unit.
[0022]
Each of the evaporators 16A, 16B, 16C is connected to the compressor 11 via a refrigerant pipe and an accumulator 25, and includes a thermistor for detecting the inlet and outlet temperatures of the evaporators 16A, 16B, 16C. Evaporator temperature sensors 17A, 17B and 17C.
[0023]
The electronic expansion valve 13 is configured by, for example, an expansion valve driven by a stepping motor or the like, and is electrically connected to a controller 18 serving as a control unit, and controls the number of pulses of a driving pulse signal output from the controller 18. Thus, the valve opening is controlled.
[0024]
The controller 18 includes a column temperature measurement signal output from the column temperature measurement sensors 4A, 4B, and 4C, an evaporator temperature measurement signal 20A, 20B, and 20C output from the evaporator temperature sensors 17A, 17B, and 17C. An outside air temperature measurement signal 21 or the like output from the outside air temperature sensor 5 is input, and the opening degree of the electronic expansion valve 13 and the opening / closing control of the solenoid valves 15A, 15B, and 15C are controlled in accordance with the temperature measurement signals and the like. The temperature in the storage column is controlled to be within a predetermined cooling temperature range, and the canned beverage and the like in the column are cooled.
[0025]
Next, the relationship between the target temperature range and the adjustment level used in the temperature control operation in the vending machine 100 will be described with reference to FIG.
[0026]
First, as shown in FIG. 4, the controller 18 sets eleven target temperature ranges from the controllable temperature range of -1 ° C. to + 12 ° C., and sets each of the set target temperature ranges. Are assigned to 11 adjustment levels of 0 to 10, respectively.
[0027]
That is, the target temperature range of the adjustment level 0 is a range of 3 ° C. from −1 ° C. to + 2 ° C. In the same manner, the temperature range is set to 3 ° C., and the upper and lower limit temperatures are changed by 1 ° C. Increase and assign adjustment levels up to adjustment level 10.
[0028]
Below, examples of adjustment level assignments are listed.
[0029]
Target temperature range of adjustment level 1 = 3 ° C range of 0 ° C to + 3 ° C Target temperature range of adjustment level 2 = 3 ° C range of + 1 ° C to + 4 ° C Target temperature range of adjustment level 3 = 3 ° C range of + 2 ° C to + 5 ° C target temperature range of level 4 = 3 ° C to + 6 ° C 3 ° C target temperature range of level 5 = + 4 ° C to + 7 ° C 3 ° C range adjustment level 6 target temperature range = + 5 ° C to + 8 ° C 3 ° C range adjustment level 7 target temperature range = + 6 ° C to + 9 ° C 3 ° C range adjustment level 8 Target temperature range = + 7 ° C. to + 10 ° C. in 3 ° C. target temperature range of level 9 = + 8 ° C. to + 11 ° C. 3 ° C. target temperature range in level 10 = + 9 ° C. Next, the 11 adjustment levels assigned are assigned to the high-temperature block H, the medium-temperature block M, and the low-temperature block. L is classified into three upper temperature blocks. That is,
Adjustment level 5 to adjustment level 10 = high temperature block H,
Adjustment level 3 to Adjustment level 8 = Medium temperature block M,
Adjustment level 0 to adjustment level 5 = low temperature block L.
[0030]
Next, the adjustment levels in the upper temperature blocks classified as described above are respectively made to correspond to the lower temperature blocks in three stages of high (h), standard (m), and low (l). That is, since each upper temperature block is composed of six adjustment levels, two adjustment levels correspond to each lower temperature block.
[0031]
For example, the adjustment level 10 and the adjustment level 9 correspond to the adjustment level of the lower temperature block h (higher) in the high temperature block H (hereinafter, referred to as “Hh level”).
[0032]
The adjustment level 8 and the adjustment level 7 correspond to the adjustment level (hereinafter, referred to as “Hm level”) of the lower temperature block m (standard) in the high temperature block H.
[0033]
The adjustment level 6 and the adjustment level 5 correspond to the adjustment level (hereinafter, referred to as “H1 level”) of the lower temperature block 1 (lower) in the high temperature block H.
Similarly, the adjustment level 8 and the adjustment level 7 correspond to the adjustment level of the lower temperature block h (higher) in the middle temperature block M (hereinafter, referred to as “Mh level”).
[0034]
The adjustment level 6 and the adjustment level 5 correspond to the adjustment level (hereinafter, referred to as “Mm level”) of the lower temperature block m (standard) in the middle temperature block M.
[0035]
The adjustment level 4 and the adjustment level 3 correspond to the adjustment level (hereinafter referred to as “Ml level”) of the lower temperature block 1 (lower) in the middle temperature block M.
[0036]
The adjustment level of the lower temperature block h (higher) in the low temperature block L (hereinafter referred to as “Lh level”) corresponds to the adjustment level 5 and the adjustment level 4.
[0037]
The adjustment level 3 and the adjustment level 2 correspond to the adjustment level (hereinafter, referred to as “Lm level”) of the lower temperature block m (standard) in the low temperature block L.
[0038]
The adjustment level 1 and the adjustment level 0 correspond to the adjustment level of the lower temperature block l (lower) in the low-temperature block L (hereinafter, referred to as “Ll level”).
[0039]
The target temperature range described above may be provided in the form of a data table in the semiconductor memory.
[0040]
Next, a temperature control operation of the vending machine 100 using the temperature adjustment level set as described above will be described with reference to a control flowchart shown in FIG. In the following description, it is assumed that the three product storage columns 3A, 3B, and 3C are all controlled to a temperature within the same temperature range.
[0041]
First, any one of the three temperature blocks H, M, and L is selected (step S1). Various methods can be considered as the selection method. For example, there is a method using the outside air temperature output from the outside air temperature measurement sensor 5 as a criterion. In other words, in the case of cold beverages, if the outside air temperature is high, even if the target temperature zone for cooling the beverage is set to a certain high temperature, the user does not feel "slimy". If the outside air temperature is medium, the medium temperature block M is selected, and if the outside air temperature is low, the low temperature block L is selected. .
[0042]
After selecting one of the three temperature blocks H, M, and L, among the temperature blocks, the three lower temperature blocks “high (h)”, “standard (m)”, and “standard (m)” are used. One of "lower (1)" is selected (step S3). By such a two-step operation, as shown in step S6, nine types of control are performed, two corresponding adjustment levels are selected, and the target temperature range is determined by the selected two adjustment levels. For example, in the case of the M-m level, the target temperature range is a range of two adjustment levels spanning the adjustment level 6 and the adjustment level 5, that is, a range of 4 ° C. from + 4 ° C. to + 8 ° C.
[0043]
Although the present invention has been described based on the embodiments of the present invention, the present invention is not limited to the above embodiments. That is, for example, in the above-described embodiment, 11 target temperature ranges are set from the entire controllable temperature range, but it is sufficient that at least three target temperature ranges can be set from the entire temperature range.
[0044]
In addition, at least two stages (high temperature H and low temperature L) are required for the temperature block, and at least two stages (high h and low l) are required for the lower temperature block. In this case, one adjustment level corresponds to each of the four levels Hh, Hl, Lh, and Ll.
[0045]
Further, in the above-described embodiment, the vending machine for cold drinks has been described. However, the present invention can be applied to a vending machine for hot beverages in the same manner. In that case, a heater (not shown) is provided in each of the product storage columns 3A to 3C, and the heater is controlled by the controller 18. This heater corresponds to a temperature control unit.
[0046]
【The invention's effect】
As described above, according to the first aspect of the present invention, it is possible to determine a temperature range to be controlled by first selecting one of the temperature blocks having a plurality of stages. By selecting one of the lower temperature blocks, an appropriate target temperature range can be set, so that the temperature can be set by a maximum of two operations. The range setting operation is greatly simplified.
[0047]
According to the second aspect of the present invention, since the number of stages of the temperature block and the lower temperature block is set to three commonly used high, medium, and low levels, the setting operation is simplified, and the target according to the season is simplified. The operation of changing the temperature setting is not complicated.
[0048]
According to the third aspect of the present invention, the number of stages of the temperature block and the lower temperature block is simplified as three generally-used high, medium, and low steps, and the setting operation is changed according to the season. Temperature control can be performed according to the target temperature.
[0049]
According to the invention as set forth in claim 4, since the outside air temperature having a high correlation with the sensible temperature is monitored, and the target temperature range can be determined based on the relative temperature difference between the outside air temperature and the inside temperature, Energy saving operation of the vending machine becomes possible without excessively cooling or heating the inside of the product storage.
[Brief description of the drawings]
FIG. 1 is a diagram showing a schematic configuration of a temperature control device of a vending machine according to an embodiment of the present invention.
FIG. 2 is a diagram showing a circuit configuration of a temperature control device of a vending machine according to one embodiment of the present invention.
FIG. 3 is a flowchart showing a control procedure in the temperature control device of the vending machine according to one embodiment of the present invention.
FIG. 4 is a diagram illustrating an operation of the temperature control device of the vending machine according to one embodiment of the present invention.
FIG. 5 is an explanatory diagram showing a setting example of a conventional target temperature level.
[Explanation of symbols]
2 Insulated partition walls 3A to 3C Commodity storage columns 4A to 4C Column internal temperature measuring sensor 5 Outside air temperature measuring sensor 6 Mechanical unit 11 Compressor 12 Capacitor 13 Electronic expansion valve 14 Distributor 15A to 15C Solenoid valve 16A to 16C Evaporator 17A to 17C Evaporator Temperature sensor 18 Controller 25 Accumulator 100 Vending machine

Claims (4)

In a temperature control method of a vending machine for controlling a product temperature based on a target temperature and a detected temperature in a refrigerator,
The controllable temperature ranges are grouped by a predetermined range of temperatures, and the temperature ranges that are grouped are each assigned a graded adjustment temperature level and classified,
Classifying the assigned adjustment level into a plurality of upper temperature blocks,
Classifying each of the upper temperature blocks into lower temperature blocks of a plurality of stages for each predetermined number of adjusted temperature levels,
When any one of the upper temperature blocks is selected, an adjusted temperature level belonging to the selected upper temperature block is set as a target temperature,
Further, when any one of the lower temperature blocks is selected, a regulated temperature level belonging to the selected lower temperature block is set as a target temperature. In a temperature control method of a vending machine for controlling a product temperature based on a target temperature and a detected temperature in a refrigerator,
The controllable temperature ranges are grouped by a predetermined range of temperatures, and the temperature ranges are assigned to the adjusted temperature levels of each grouped temperature range and classified.
Classifying the assigned adjustment level into at least three high temperature blocks of high, medium and low;
Classifying each of the upper temperature blocks into at least three lower temperature blocks of high, medium, and low for each predetermined number of regulated temperature levels;
When any of the upper temperature block is selected, an adjusted temperature level belonging to the selected upper temperature block is set as a target temperature,
Further, when any one of the lower temperature blocks is selected, a regulated temperature level belonging to the selected lower temperature block is set as a target temperature. In a temperature control method of a vending machine for controlling a product temperature based on a target temperature and a detected temperature in a refrigerator,
All controllable temperature ranges are grouped by a predetermined range of temperatures, and each of the grouped temperature ranges is assigned a gradual adjustment temperature level and classified,
Classifying the assigned adjustment level into at least three high temperature blocks of high, medium and low;
Each of the upper temperature blocks is classified into at least high, medium, and low-order lower temperature blocks for each predetermined number of adjusted temperature levels,
When any one of the upper temperature blocks is automatically selected according to the outside air temperature around the vending machine, the product temperature is controlled with the adjusted temperature level belonging to the selected upper temperature block as the target temperature,
Further, when any of the lower temperature blocks is automatically selected according to the outside air temperature around the vending machine, the control of the product temperature is performed with the adjusted temperature level belonging to the selected lower temperature block as the target temperature. A method for controlling the temperature of a vending machine, the method comprising: In a temperature control device of a vending machine that controls a product temperature based on a target temperature and a detected temperature in a refrigerator,
An outside air temperature detecting means for detecting an outside air temperature around the vending machine;
The controllable temperature ranges are grouped for each of a predetermined range of temperatures, and the controllable temperature levels of each grouped temperature range are assigned and classified, and the assigned adjustment levels are at least three levels of high, medium, and low. Temperature blocks, and each of the upper temperature blocks is classified into at least three lower temperature blocks of high, medium, and low for each predetermined number of regulated temperature levels, and the outside air temperature detected by the outside air temperature detecting means is determined. One of the upper temperature blocks in accordance with the selected upper temperature block, performs temperature control with the adjusted temperature level belonging to the selected upper temperature block as a target temperature, and further performs the lower temperature in accordance with the detected outside air temperature. A controller that selects one of the blocks and performs temperature control using the adjusted temperature level belonging to the selected lower temperature block as the target temperature. And,
A temperature control device for a vending machine, comprising:

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