JP2014085875A - Vending machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust the temperature of a commodity to be within a prescribed normal temperature range without being affected by an outside air temperature and houses the temperature-adjusted commodity.SOLUTION: A vending machine is equipped with: a compressor 21 and a control part 30 for cooling the internal air of a commodity storage 3 when the internal temperature of the commodity storage 3 exceeds a cooling start temperature, and stopping cooling when the internal temperature of the commodity storage 3 is lower than a cooling end temperature; and a heater H and a control part 30 for heating the internal air of the commodity storage 3 when the internal temperature of the commodity storage 3 is lower than a heating start temperature, and stopping heating when the internal temperature of the commodity storage 3 exceeds a heating end temperature.

Description

  The present invention relates to a vending machine, and more particularly, to a vending machine that adjusts and sells products such as canned beverages and plastic bottled beverages to a desired temperature.

  2. Description of the Related Art Conventionally, as a vending machine that sells products such as canned beverages and plastic bottled beverages, a product storage container that stores products is generally disposed inside a main body cabinet that is a heat insulating casing. It is. In this type of vending machine, there is known a vending machine that stores merchandise at room temperature, that is, a so-called room temperature vault.

  In a vending machine equipped with such a room temperature storage, the cooled air of the product storage room (cooling room) that stores the product in a cooled state is sent to the room temperature storage as needed, and the temperature inside the room storage room Is adjusted to a desired temperature range (see, for example, Patent Document 1).

JP 2004-258785 A

  However, in the vending machine described above, the cooled air in the refrigerator is sent to the room temperature storage as necessary, and the inside temperature of the room temperature chamber is adjusted to be in a desired temperature range. In the spring and autumn when the outside air temperature is about 15 ° C., for example, or in the summer when the outside air temperature is 30 ° C. or more, the inside temperature of the room temperature chamber can be adjusted to a desired temperature range. For example, in the winter of about 5 ° C., it has been difficult to adjust the inside temperature of the room temperature chamber to a desired temperature range.

  In view of the above circumstances, an object of the present invention is to provide a vending machine capable of adjusting and storing a product in a predetermined room temperature range without being affected by the outside air temperature.

  In order to achieve the above object, the vending machine according to the present invention is a vending machine provided with a product storage for storing a product in a room temperature range determined in advance. When the cooling start temperature exceeds a preset cooling start temperature, the internal air of the product storage is cooled, while the internal cooling temperature of the product storage is a preset cooling end temperature lower than the cooling start temperature. If below, cooling means for stopping the cooling of the internal air of the product storage, and when the temperature inside the product storage is below a preset heating start temperature lower than the cooling start temperature, When the internal temperature of the product storage is heated, while the internal temperature of the product storage is higher than the cooling end temperature and higher than a preset heating end temperature lower than the cooling start temperature, the product Inside the containment Characterized by comprising a heating means for stopping the heating of the air.

  In the vending machine, the present invention introduces outside air into the commodity storage when the temperature of the outside of the commodity storage is lower than the temperature in the storage when the temperature in the storage of the commodity storage exceeds the cooling start temperature. On the other hand, there is provided an outside air introducing means for restricting the introduction of outside air into the inside of the commodity storage when the outside air temperature becomes equal to or higher than the inside temperature.

  Further, in the vending machine according to the present invention, in the above vending machine, the outside air introduction means removes the outside air when the outside temperature exceeds the inside temperature when the inside temperature of the commodity storage is lower than the heating start temperature. While being introduced into the interior of the storage, the introduction of outside air into the interior of the commodity storage is restricted when the outside air temperature is equal to or lower than the inside temperature.

  According to the present invention, the cooling means cools the internal air of the product storage when the internal temperature of the product storage exceeds the preset cooling start temperature, while the internal temperature of the product storage Is lower than the preset cooling end temperature lower than the cooling start temperature, the cooling of the internal air of the product storage is stopped, and the heating means is configured such that the temperature inside the product storage is lower than the cooling start temperature. When the temperature is lower than a preset heating start temperature that is lower than the preset temperature, the internal air of the product storage is heated, while the temperature inside the product storage is higher than the cooling end temperature and lower than the cooling start temperature. When the heating end temperature is exceeded, heating of the internal air of the product storage is stopped, so that the internal temperature of the target product storage can be adjusted to a range between the heating start temperature and the cooling start temperature. In particular, since the heating end temperature is set higher than the cooling end temperature, the internal temperature of the corresponding product storage can be adjusted with a high probability to a temperature range that is not lower than the cooling end temperature and lower than the heating end temperature, The internal temperature can be made substantially constant. Therefore, the product stored in the corresponding product storage without being affected by the outside air temperature can be adjusted to a desired temperature range, that is, a normal temperature range.

1 is a cross-sectional view showing a case where an internal structure of a vending machine according to Embodiment 1 of the present invention is viewed from the front. 2 is a cross-sectional side view showing the internal structure of the vending machine shown in FIG. FIG. 3 is a block diagram schematically showing a characteristic control system of the vending machine according to the first embodiment of the present invention. FIG. 4 is a flowchart showing the processing contents of the normal temperature range control processing executed by the control unit. FIG. 5 is a cross-sectional side view showing the internal structure of the vending machine according to the second embodiment of the present invention. FIG. 6 is a block diagram schematically showing a characteristic control system of the vending machine according to the second embodiment of the present invention. FIG. 7 is a flowchart showing the processing contents of the normal temperature range control processing executed by the control unit.

  Exemplary embodiments of a vending machine according to the present invention will be described below in detail with reference to the accompanying drawings.

<Embodiment 1>
1 is a cross-sectional view showing a case where an internal structure of a vending machine according to Embodiment 1 of the present invention is viewed from the front. The vending machine illustrated here includes a main body cabinet 1.

  The main body cabinet 1 has a rectangular shape with an open front surface. The main body cabinet 1 is provided with three independent commodity storage boxes 3 partitioned by two heat insulating partition plates 2 in the left and right sides, for example. This product storage 3 is for storing products such as canned beverages and beverages containing plastic bottles while maintaining them at a desired temperature, and has a heat insulating structure.

  2 is a cross-sectional side view showing the internal structure of the vending machine shown in FIG. As shown in FIG. 2, an outer door 4 and an inner door 5 are provided on the front surface of the main body cabinet 1. The outer door 4 is for opening and closing the front opening of the main body cabinet 1, and the inner door 5 is for opening and closing the front surface of the commodity storage 3. The inner door 5 is divided into upper and lower parts, and the upper door 5a opens and closes when a product is replenished.

  The product storage 3 is provided with a product storage rack 6, a carry-out mechanism 7 and a carry-out shooter 8. The commodity storage rack 6 is for storing commodities in a manner arranged in the vertical direction. The carry-out mechanism 7 is provided at the lower part of the product storage rack 6 and is used to carry out the products at the bottom of the product group stored in the product storage rack 6 one by one. The carry-out shooter 8 is for guiding the product carried out from the carry-out mechanism 7 to the product take-out port 4 a provided in the outer door 4.

  An evaporator 24 and a heater H are disposed below the carry-out shooter 8. The evaporator 24 is disposed on the front side of the rear duct D, and is sequentially connected through a compressor 21, a radiator 22, a capillary tube 23 and a refrigerant pipe 25 disposed in the machine room 9 to form a refrigeration cycle 20. doing. The compressor 21 sucks the refrigerant through the suction port, compresses the sucked refrigerant to be in a high-temperature and high-pressure state (high-temperature and high-pressure refrigerant), and discharges it from the discharge port. The radiator 22 radiates heat from the refrigerant that passes therethrough. More specifically, the refrigerant compressed by the compressor 21 and discharged from the discharge port and sent out through the refrigerant pipe 25 is subjected to heat exchange with ambient air to dissipate heat. The capillary tube 23 is used for adiabatic expansion by depressurizing the refrigerant passing therethrough.

  By circulating the refrigerant in the refrigeration cycle 20, the refrigerant compressed by the compressor 21 is radiated by the radiator 22, and then adiabatically expanded by the capillary tube 23 and passes through the evaporator 24. When the refrigerant passes through the evaporator 24, heat exchange is performed with the internal air of the commodity storage 3 in which the evaporator 24 is disposed, and the refrigerant evaporates to cool the internal air. The evaporated refrigerant is sucked into the compressor 21.

  The cooled internal air moves inside the product storage 3 by driving the internal blower fan F1, so that the product stored in the product storage rack 6 of the product storage 3 has a desired temperature (for example, 5 ° C.). It will be cooled down.

  The heater H is disposed on the front side of the evaporator 24. The heater H heats the surrounding air when energized.

  The air heated by the heater H moves inside the product storage case 3 by driving the internal blower fan F1, so that the product stored in the product storage rack 6 of the product storage case 3 has a desired temperature (for example, 55 ° C.).

  FIG. 3 is a block diagram schematically showing a characteristic control system of the vending machine according to the first embodiment of the present invention. As shown in FIG. 3, the vending machine includes an internal temperature sensor S <b> 1 and a control unit 30.

  The in-compartment temperature sensor S <b> 1 is disposed inside each product storage 3, detects the internal temperature of the product storage 3 in which the product is stored, and outputs a detection signal to the control unit 30. To do.

  The control part 30 controls the internal temperature (internal temperature) of each goods storage 3 according to the program and data previously memorize | stored in the memory 40. FIG. The control unit 30 may be incorporated in a main control unit (not shown) that controls the basic operation of the vending machine, or may be provided independently of the main control unit. Here, various information is stored in the memory 40, and room temperature temperature information is stored as a characteristic feature of the present invention. The normal temperature range temperature information relates to the cooling start temperature, the cooling end temperature, the heating start temperature, and the heating end temperature in the product storage (normal temperature storage) 3 that adjusts the product to be stored in the product storage 3 to the normal temperature range. is there. The cooling start temperature is a temperature (for example, about 30 ° C.) that becomes a threshold value for starting the cooling operation when the temperature exceeds such a temperature, that is, driving the compressor 21. The cooling end temperature is a temperature lower than the cooling start temperature, and is a temperature (for example, about 23 ° C.) serving as a threshold value for stopping the cooling operation, that is, stopping the compressor 21 when the temperature is lower than the temperature. The heating start temperature is lower than the cooling end temperature, and is a temperature (for example, about 18 ° C.) that is a threshold value for starting the heating operation when the temperature is lower than the temperature, that is, driving the heater H. The heating end temperature is a temperature that is higher than the cooling end temperature and lower than the cooling start temperature. When the temperature exceeds the temperature, the heating operation is stopped, that is, a temperature that is a threshold for stopping the heater H (for example, about 25 ° C.) ).

  The control unit 30 includes an input processing unit 31, a comparison unit 32, a compressor drive processing unit 33, and a heater drive processing unit 34.

  The input processing unit 31 inputs a temperature signal from the internal temperature sensor S1. The comparison unit 32 compares the inside temperature input through the input processing unit 31 with any of the temperatures read from the memory 40 (cooling start temperature, cooling end temperature, heating start temperature, and heating end temperature). is there. The compressor drive processing unit 33 gives a drive command or a drive stop command to the compressor 21 to drive or stop the compressor 21. The heater drive processing unit 34 gives a drive command or a drive stop command to the heater H so that the heater H is energized or de-energized.

  FIG. 4 is a flowchart showing the processing contents of the normal temperature range control processing executed by the control unit. The operation of the vending machine according to the first embodiment will be described while explaining the processing contents. Here, it is assumed that one commodity storage 3 is set as a room temperature storage, and temperature control of the commodity storage 3 will be described.

  When the compressor 21 is driven, the control unit 30 in the normal temperature region control process inputs the internal temperature of the normal temperature chamber 3 through the input processing unit 31 (step S101: Yes, step S102: Yes). The cooling end temperature is read from the memory 40 through the unit 32, and the cooling end temperature is compared with the internal temperature (step S103).

  When the internal temperature is lower than the cooling end temperature (step S103: Yes), the control unit 30 gives a drive stop command to the compressor 21 through the compressor drive processing unit 33 to stop the drive of the compressor 21 ( Step S104), and then the procedure is returned to end the current process. According to this, the internal temperature of the normal temperature chamber 3 is in the normal temperature range, and then changes in the direction of increasing.

  If the internal temperature is equal to or higher than the cooling end temperature (step S103: No), the control unit 30 maintains the drive of the compressor 21 (step S105), and then returns the procedure to end the current process. To do. According to this, the internal temperature of the room temperature storage 3 changes in a decreasing direction.

  When the internal temperature of the room temperature storage 3 is input through the input processing unit 31 in a state where the compressor 21 is stopped and the heater H is operating (Step S101: No, Step S106: Yes, Step S107: Yes) The control unit 30 reads the heating end temperature from the memory 40 through the comparison unit 32, and compares the heating end temperature with the internal temperature (step S108).

  When the internal temperature exceeds the heating end temperature (step S108: Yes), the control unit 30 gives a drive stop command to the heater H through the heater drive processing unit 34 to stop driving the heater H (step S109). Thereafter, the procedure is returned to end the current process. According to this, since the heater H is in a non-energized state, the internal temperature of the room temperature chamber 3 changes in a direction of decreasing thereafter.

  If the internal temperature is equal to or lower than the heating end temperature (step S108: No), the control unit 30 maintains the driving of the heater H (step S110), and then returns the procedure to end the current process. . According to this, the internal temperature of the room temperature storage 3 changes in a rising direction.

  When the internal temperature of the room temperature storage 3 is input through the input processing unit 31 while the compressor 21 and the heater H are stopped (Step S101: No, Step S106: No, Step S111: Yes), the control unit 30 reads the cooling start temperature and the heating start temperature from the memory 40 through the comparison unit 32, and compares the internal temperature with the cooling start temperature or the heating start temperature.

  If the internal temperature exceeds the cooling start temperature (step S112: Yes), the control unit 30 gives a drive command to the compressor 21 through the compressor drive processing unit 33 to drive the compressor 21 (step S113). Thereafter, the procedure is returned to end the current process. According to this, the internal temperature of the room temperature storage 3 changes in a decreasing direction.

  If the internal temperature is lower than the heating start temperature (step S112: No, step S114: Yes), the control unit 30 gives a drive command to the heater H through the heater drive processing unit 34 to drive the heater H (step S112). S115), then the procedure is returned to end the current process. According to this, the internal temperature of the room temperature storage 3 changes in a rising direction.

  On the other hand, when the internal temperature is equal to or higher than the heating start temperature and equal to or lower than the cooling start temperature (step S112: No, step S114: No), that is, when the internal temperature is in the normal temperature range, the control unit 30 performs processing. The current state is maintained without performing the process, and then the procedure is returned to end the current process.

  As described above, in the vending machine according to the first embodiment, the control unit 30 drives the compressor 21 when the internal temperature of the corresponding product storage (normal temperature storage) 3 exceeds the cooling start temperature. While cooling the internal air of the normal temperature chamber 3, when the internal temperature of the normal temperature chamber 3 is lower than the cooling end temperature, the compressor 21 is stopped to stop the cooling of the internal air of the normal temperature chamber 3. To do. Moreover, when the inside temperature of the corresponding room temperature chamber 3 is lower than the heating start temperature, the control unit 30 energizes the heater H to heat the internal air of the room temperature chamber 3, If the internal temperature exceeds the heating end temperature, the heater H is turned off and heating is stopped.

  That is, the refrigeration cycle 20 (particularly the compressor 21 and the evaporator 24) and the control unit 30 cool the internal air of the product storage 3 when the internal temperature of the product storage 3 exceeds the cooling start temperature. On the other hand, when the inside temperature of the product storage 3 is lower than the cooling end temperature, the cooling means is configured to stop cooling, and the heater H and the control unit 30 are configured so that the temperature inside the product storage 3 starts heating. When the temperature falls below the temperature, the inside air of the commodity storage 3 is heated, and when the temperature inside the commodity storage 3 exceeds the heating end temperature, a heating unit is configured to stop the heating.

  As described above, according to the vending machine according to the first embodiment, when the internal temperature of the corresponding product storage (normal temperature storage) 3 exceeds the cooling start temperature, the compressor 21 is driven to While the internal air of the room temperature chamber 3 is cooled, when the inside temperature of the room temperature chamber 3 is below the cooling end temperature, the compressor 21 is stopped to stop the cooling of the internal air of the room temperature chamber 3; And when the inside temperature of the corresponding room temperature chamber 3 is lower than the heating start temperature, the heater H is energized to heat the air inside the room temperature chamber 3 while the inside temperature of the room temperature chamber 3 is heated. When the temperature is exceeded, the heater H is deenergized and heating is stopped. Therefore, the internal temperature of the room temperature chamber 3 can be adjusted to a range from the heating start temperature to the cooling start temperature. In particular, since the heating end temperature is set higher than the cooling end temperature, the inside temperature of the room temperature chamber 3 can be adjusted with a high probability to a temperature range between the cooling end temperature and the heating end temperature. The inside temperature of 3 can be made substantially constant. Therefore, the product accommodated in the corresponding product storage 3 without being affected by the outside air temperature can be adjusted to a desired temperature range, that is, a normal temperature range.

<Embodiment 2>
FIG. 5 is a cross-sectional side view showing the internal structure of the vending machine according to the second embodiment of the present invention. In addition, the same code | symbol is attached | subjected and demonstrated to what has the same structure as the vending machine which is Embodiment 1 mentioned above.

  The vending machine according to the present embodiment also includes a main body cabinet 1. The main body cabinet 1 has a rectangular shape with an open front surface. The main body cabinet 1 is provided with three independent commodity storage boxes 3 partitioned by two heat insulating partition plates 2 in the left and right sides, for example. This product storage 3 is for storing products such as canned beverages and beverages containing plastic bottles while maintaining them at a desired temperature, and has a heat insulating structure.

  As shown in FIG. 5, an outer door 4 and an inner door 5 are provided on the front surface of the main body cabinet 1. The outer door 4 is for opening and closing the front opening of the main body cabinet 1, and the inner door 5 is for opening and closing the front surface of the commodity storage 3. The inner door 5 is divided into upper and lower parts, and the upper door 5a opens and closes when a product is replenished.

  The product storage 3 is provided with a product storage rack 6, a carry-out mechanism 7 and a carry-out shooter 8. The commodity storage rack 6 is for storing commodities in a manner arranged in the vertical direction. The carry-out mechanism 7 is provided at the lower part of the product storage rack 6 and is used to carry out the products at the bottom of the product group stored in the product storage rack 6 one by one. The carry-out shooter 8 is for guiding the product carried out from the carry-out mechanism 7 to the product take-out port 4 a provided in the outer door 4.

  An evaporator 24 and a heater H are disposed below the carry-out shooter 8. The evaporator 24 is disposed on the front side of the rear duct D, and is sequentially connected through a compressor 21, a radiator 22, a capillary tube 23 and a refrigerant pipe 25 disposed in the machine room 9 to form a refrigeration cycle 20. doing. The compressor 21 sucks the refrigerant through the suction port, compresses the sucked refrigerant to be in a high-temperature and high-pressure state (high-temperature and high-pressure refrigerant), and discharges it from the discharge port. The radiator 22 radiates heat from the refrigerant that passes therethrough. More specifically, the refrigerant compressed by the compressor 21 and discharged from the discharge port and sent out through the refrigerant pipe 25 is subjected to heat exchange with ambient air to dissipate heat. The capillary tube 23 is used for adiabatic expansion by depressurizing the refrigerant passing therethrough.

  By circulating the refrigerant in the refrigeration cycle 20, the refrigerant compressed by the compressor 21 is radiated by the radiator 22, and then adiabatically expanded by the capillary tube 23 and passes through the evaporator 24. When the refrigerant passes through the evaporator 24, heat exchange is performed with the internal air of the commodity storage 3 in which the evaporator 24 is disposed, and the refrigerant evaporates to cool the internal air. The evaporated refrigerant is sucked into the compressor 21.

  The cooled internal air moves inside the product storage 3 by driving the internal blower fan F1, so that the product stored in the product storage rack 6 of the product storage 3 has a desired temperature (for example, 5 ° C.). It will be cooled down.

  The heater H is disposed on the front side of the evaporator 24. The heater H heats the surrounding air when energized. The air heated by the heater H moves inside the product storage case 3 by driving the internal blower fan F1, so that the product stored in the product storage rack 6 of the product storage case 3 has a desired temperature (for example, 55 ° C.).

  Further, in the main body cabinet 1 of the vending machine according to the second embodiment, an outside air introduction port 50, a shutter mechanism SH, and an introduction fan F2 are disposed. The outside air introduction port 50 is an opening formed on the bottom surface of each commodity storage 3. The outside air introduction port 50 communicates with an outside door opening 4 b formed in the lower part of the outside door 4 through an outside air introduction path 51 such as a hose. The shutter mechanism SH opens and closes the outside air introduction port 50. The introduction fan F2 introduces outside air through the outside air introduction path 51 by being driven in a state where the shutter mechanism SH is opened and the outside air introduction port 50 is opened.

  FIG. 6 is a block diagram schematically showing a characteristic control system of the vending machine according to the second embodiment of the present invention. As shown in FIG. 6, the vending machine includes an internal temperature sensor S <b> 1, an outside air temperature sensor S <b> 2, and a control unit 60.

  The in-compartment temperature sensor S <b> 1 is disposed inside each product storage 3, detects the internal temperature of the product storage 3 in which the product is stored, and outputs a detection signal to the control unit 60. To do.

  The outside air temperature sensor S <b> 2 is disposed outside the main body cabinet 1, detects the outside air temperature, and outputs a detection signal to the control unit 60.

  The control part 60 controls the internal temperature (internal temperature) of each goods storage 3 according to the program and data previously stored in the memory 70. The control unit 60 may be incorporated in a main control unit (not shown) that controls the basic operation of the vending machine, or may be provided independently of the main control unit. Here, various information is stored in the memory 70, and room temperature temperature information is stored as a characteristic feature of the present invention. The normal temperature range temperature information relates to the cooling start temperature, the cooling end temperature, the heating start temperature, and the heating end temperature in the product storage (normal temperature storage) 3 that adjusts the product to be stored in the product storage 3 to the normal temperature range. is there. The cooling start temperature is a temperature (for example, about 30 ° C.) that becomes a threshold value for starting the cooling operation when the temperature exceeds such a temperature, that is, driving the compressor 21. The cooling end temperature is a temperature lower than the cooling start temperature, and is a temperature (for example, about 23 ° C.) serving as a threshold value for stopping the cooling operation, that is, stopping the compressor 21 when the temperature is lower than the temperature. The heating start temperature is lower than the cooling end temperature, and is a temperature (for example, about 18 ° C.) that is a threshold value for starting the heating operation when the temperature is lower than the temperature, that is, driving the heater H. The heating end temperature is a temperature that is higher than the cooling end temperature and lower than the cooling start temperature. When the temperature exceeds the temperature, the heating operation is stopped, that is, a temperature that is a threshold for stopping the heater H (for example, about 25 ° C.) ).

  The control unit 60 includes an input processing unit 61, a comparison unit 62, a compressor drive processing unit 63, a heater drive processing unit 64, and an output processing unit 65.

  The input processing unit 61 inputs a temperature signal from the internal temperature sensor S1 or the outside air temperature sensor S2. The comparison unit 62 compares the internal temperature input through the input processing unit 61 with any of the temperatures read from the memory 70 (cooling start temperature, cooling end temperature, heating start temperature, and heating end temperature). The inside temperature input through the input processing unit 61 is compared with the outside air temperature. The compressor drive processing unit 63 gives a drive command or a drive stop command to the compressor 21 to drive or stop the compressor 21. The heater drive processing unit 64 gives a drive or drive stop command to the heater H, and puts the heater H into an energized state or a non-energized state. The output processing unit 65 gives an open command or a close command to the shutter mechanism SH to move the shutter mechanism SH open or close, and gives a drive command or a drive stop command to the introduction fan F2, thereby introducing the introduction fan. F2 is driven or stopped.

  FIG. 7 is a flowchart showing the processing contents of the normal temperature range control processing executed by the control unit. The operation of the vending machine according to the second embodiment will be described while explaining the processing contents. Here, it is assumed that one commodity storage 3 is set as a room temperature storage, and temperature control of the commodity storage 3 will be described.

  When the control unit 60 in the normal temperature region control process inputs the internal temperature of the normal temperature storage 3 through the input processing unit 61 in a state where the compressor 21 is driven (step S201: Yes, step S202: Yes), comparison is made. The cooling end temperature is read from the memory 70 through the unit 62, and the cooling end temperature is compared with the internal temperature (step S203).

  When the internal temperature is lower than the cooling end temperature (step S203: Yes), the control unit 60 gives a drive stop command to the compressor 21 through the compressor drive processing unit 63 to stop the drive of the compressor 21 ( Step S204), and then the procedure is returned to end the current process. According to this, the internal temperature of the normal temperature chamber 3 is in the normal temperature range, and then changes in the direction of increasing.

  If the internal temperature is equal to or higher than the cooling end temperature (step S203: No), the control unit 60 maintains the drive of the compressor 21 (step S205), and then returns the procedure to end the current process. To do. According to this, the internal temperature of the room temperature storage 3 changes in a decreasing direction.

  When the internal temperature of the room temperature chamber 3 is input through the input processing unit 61 in a state where the compressor 21 is stopped and the heater H is operating (Step S201: No, Step S206: Yes, Step S207: Yes) The control unit 60 reads the heating end temperature from the memory 70 through the comparison unit 62, and compares the heating end temperature with the internal temperature (step S208).

  When the inside temperature exceeds the heating end temperature (step S208: Yes), the control unit 60 gives a drive stop command to the heater H through the heater drive processing unit 64 to stop driving the heater H (step S209). Thereafter, the procedure is returned to end the current process. According to this, since the heater H is in a non-energized state, the internal temperature of the room temperature chamber 3 changes in a direction of decreasing thereafter.

  When the internal temperature is equal to or lower than the heating end temperature (step S208: No), the control unit 60 maintains the driving of the heater H (step S210), and then returns the procedure to end the current process. . According to this, the internal temperature of the room temperature storage 3 changes in a rising direction.

  When the internal temperature of the room temperature storage 3 is input through the input processing unit 61 while the compressor 21 and the heater H are stopped (Step S201: No, Step S206: No, Step S211: Yes), the control unit 60 reads the cooling start temperature and the heating start temperature from the memory 70 through the comparison unit 62, and compares the internal temperature with the cooling start temperature or the heating start temperature.

  When the internal temperature exceeds the cooling start temperature (step S212: Yes), the control unit 60 waits for the input of the outside air temperature from the outside air temperature sensor S2 (step S213). When the outside temperature is input through the input processing unit 61 (step S213: Yes), the control unit 60 compares the outside temperature with the inside temperature input in step S211 through the comparison unit 62 (step S214).

  When the outside air temperature is lower than the internal temperature (step S214: Yes), the control unit 60 gives an opening command to the shutter mechanism SH through the output processing unit 65 and gives a driving command to the introduction fan F2, and is set in a predetermined preset state. Until the time elapses, the shutter mechanism SH is moved open to open the outside air introduction port 50 and the introduction fan F2 is driven (step S215, step S216: No). As a result, outside air passes through the outside air introduction path 51 from the outside door opening 4b and enters the inside of the room temperature chamber 3 through the outside air introduction port 50, so that the inside temperature of the room temperature chamber 3 decreases.

  When the predetermined time has elapsed (step S216: Yes), the control unit 60 gives a close command to the shutter mechanism SH through the output processing unit 65 and also gives a drive stop command to the introduction fan F2 to close the shutter mechanism SH. The outside air introduction port 50 is closed and the introduction fan F2 is stopped driving (step S217). As a result, the room temperature chamber 3 is closed.

  And the control part 60 gives a drive command to the compressor 21 through the compressor drive process part 63, drives the compressor 21 (step S218), returns a procedure after that, and complete | finishes this process. According to this, the internal temperature of the room temperature storage 3 changes in a decreasing direction.

  By the way, when the outside air temperature is equal to or higher than the internal temperature in step S214 (step S214: No), the control unit 60 does not perform the processing of steps S215 to S217 described above, and passes through the compressor drive processing unit 63. A drive command is given to the compressor 21 to drive the compressor 21 (step S218), and then the procedure is returned to end the current process.

  When the inside temperature is lower than the heating start temperature (step S212: No, step S219: Yes), the control unit 60 waits for the input of the outside air temperature from the outside air temperature sensor S2 (step S220). When the outside temperature is input through the input processing unit 61 (step S220: Yes), the control unit 60 compares the outside temperature with the inside temperature input in step S211 through the comparison unit 62 (step S221).

  When the outside air temperature exceeds the internal temperature (step S221: Yes), the control unit 60 gives an opening command to the shutter mechanism SH through the output processing unit 65 and gives a driving command to the introduction fan F2, and is set in advance by a predetermined value. Until the time elapses, the shutter mechanism SH is moved open to open the outside air introduction port 50 and the introduction fan F2 is driven (step S222, step S223: No). As a result, outside air passes through the outside air introduction path 51 from the outside door opening 4b and enters the inside of the room temperature chamber 3 through the outside air introduction port 50, and the inside temperature of the room temperature chamber 3 is increased.

  When the predetermined time has elapsed (step S223: Yes), the control unit 60 gives a close command to the shutter mechanism SH through the output processing unit 65 and also gives a drive stop command to the introduction fan F2 to close the shutter mechanism SH. The outside air introduction port 50 is closed and the introduction fan F2 is stopped driving (step S224). As a result, the room temperature chamber 3 is closed.

  And the control part 60 gives a drive command to the heater H through the heater drive process part 64, drives the heater H (step S225), returns a procedure after that, and complete | finishes this process. According to this, the internal temperature of the room temperature storage 3 changes in a rising direction.

  By the way, when the outside air temperature is equal to or lower than the inside temperature in step S221 (step S221: No), the control unit 60 performs the heater through the heater drive processing unit 64 without performing the processing of steps S222 to S224 described above. A drive command is given to H to drive the heater H (step S225), and then the procedure is returned to end the current process.

  On the other hand, when the internal temperature is equal to or higher than the heating start temperature and equal to or lower than the cooling start temperature (step S212: No, step S219: No), that is, when the internal temperature is in the normal temperature range, the control unit 60 performs processing. The current state is maintained without performing the process, and then the procedure is returned to end the current process.

  As described above, in the vending machine according to the second embodiment, the control unit 60 drives the compressor 21 when the internal temperature of the corresponding product storage (normal temperature storage) 3 exceeds the cooling start temperature. While cooling the internal air of the normal temperature chamber 3, when the internal temperature of the normal temperature chamber 3 is lower than the cooling end temperature, the compressor 21 is stopped to stop the cooling of the internal air of the normal temperature chamber 3. To do. Moreover, when the inside temperature of the corresponding room temperature chamber 3 is lower than the heating start temperature, the control unit 60 energizes the heater H to heat the internal air of the room temperature chamber 3, If the internal temperature exceeds the heating end temperature, the heater H is turned off and heating is stopped.

  That is, the refrigeration cycle 20 (particularly the compressor 21 and the evaporator 24) and the control unit 60 cool the internal air of the product storage 3 when the temperature in the product storage 3 exceeds the cooling start temperature. On the other hand, when the internal temperature of the product storage 3 is lower than the cooling end temperature, a cooling unit is configured to stop cooling, and the heater H and the control unit 60 are configured to start heating the internal temperature of the product storage 3. When the temperature falls below the temperature, the inside air of the commodity storage 3 is heated, and when the temperature inside the commodity storage 3 exceeds the heating end temperature, a heating unit is configured to stop the heating.

  When the shutter mechanism SH, the introduction fan F2, and the control unit 60 have the inside temperature of the product storage case 3 exceeding the cooling start temperature, the outside air is removed from the product storage case 3 when the outside air temperature falls below the inside temperature. While introducing into the interior, when the outside air temperature becomes equal to or higher than the inside temperature, the introduction of the outside air into the inside of the product storage 3 is regulated, and the inside temperature of the product storage 3 is below the heating start temperature. The outside air is introduced into the product storage 3 when the outside air temperature exceeds the inside temperature, and the outside air is introduced into the product storage 3 when the outside air temperature is equal to or lower than the inside temperature. Constitutes an outside air introduction means for regulating

  As described above, according to the vending machine of the second embodiment, when the internal temperature of the corresponding product storage (normal temperature storage) 3 exceeds the cooling start temperature, the compressor 21 is driven to While the internal air of the room temperature chamber 3 is cooled, when the inside temperature of the room temperature chamber 3 is below the cooling end temperature, the compressor 21 is stopped to stop the cooling of the internal air of the room temperature chamber 3; And when the inside temperature of the corresponding room temperature chamber 3 is lower than the heating start temperature, the heater H is energized to heat the air inside the room temperature chamber 3 while the inside temperature of the room temperature chamber 3 is heated. When the temperature is exceeded, the heater H is deenergized and heating is stopped. Therefore, the internal temperature of the room temperature chamber 3 can be adjusted to a range from the heating start temperature to the cooling start temperature. In particular, since the heating end temperature is set higher than the cooling end temperature, the inside temperature of the room temperature chamber 3 can be adjusted with a high probability to a temperature range between the cooling end temperature and the heating end temperature. The inside temperature of 3 can be made substantially constant. Therefore, the product accommodated in the corresponding product storage 3 without being affected by the outside air temperature can be adjusted to a desired temperature range, that is, a normal temperature range.

  Further, according to the vending machine, when the inside temperature of the product storage case 3 exceeds the cooling start temperature and the outside air temperature falls below the inside temperature, the outside air is introduced into the product storage case 3. In addition, since the outside air is introduced into the inside of the product storage 3 when the inside temperature of the product storage 3 is lower than the heating start temperature and the outside air temperature exceeds the inside temperature, the outside air is effectively utilized. In addition, the cooling time and the heating time can be reduced, whereby the power consumption can be reduced.

  The preferred embodiments 1 and 2 of the present invention have been described above, but the present invention is not limited to these, and various modifications can be made.

  In Embodiments 1 and 2 described above, the heater H is used to heat the internal air of the product storage 3. However, in the present invention, the heat is not limited to heating by the heater, and the refrigerant compressed by the compressor is dissipated. The internal air may be heated by disposing the internal heat exchanger to be disposed inside the corresponding commodity storage. That is, a heat pump operation may be applied.

DESCRIPTION OF SYMBOLS 1 Main body cabinet 3 Commodity storage 20 Refrigeration cycle 21 Compressor 24 Evaporator 30 Control part 31 Input processing part 32 Comparison part 33 Compressor drive processing part 34 Heater drive processing part 40 Memory 50 Outside air introduction path 51 Outside air introduction path 60 Control part 61 Input Processing Unit 62 Comparison Unit 63 Compressor Drive Processing Unit 64 Heater Drive Processing Unit 65 Output Processing Unit 70 Memory F1 Internal Blower Fan F2 Introduction Fan H Heater S1 Internal Temperature Sensor S2 Outside Air Temperature Sensor SH Shutter Mechanism

Claims (3)

In a vending machine equipped with a product storage for storing products adjusted to a predetermined room temperature range,
When the internal temperature of the product storage exceeds a preset cooling start temperature, the internal air of the product storage is cooled, while the internal temperature of the product storage is lower than the cooling start temperature. When the cooling end temperature is lower than a preset temperature, cooling means for stopping the cooling of the internal air of the commodity storage,
When the internal temperature of the product storage is below a preset heating start temperature lower than the cooling start temperature, the internal air of the product storage is heated, while the internal temperature of the product storage is Heating means for stopping heating of the internal air of the product storage when the temperature exceeds a preset heating end temperature that is higher than the cooling end temperature and lower than the cooling start temperature. vending machine.   When the inside temperature of the product storage box exceeds the cooling start temperature, the outside air is introduced into the inside of the product storage box when the outside air temperature is lower than the inside temperature, while the outside air temperature becomes equal to or higher than the inside temperature. The vending machine according to claim 1, further comprising outside air introduction means for restricting the introduction of outside air into the inside of the commodity storage.   When the outside temperature of the commodity storage is lower than the heating start temperature, the outside air introduction means introduces the outside air into the commodity storage when the outside air temperature exceeds the inside temperature. 3. The vending machine according to claim 2, wherein the introduction of outside air into the inside of the commodity storage is restricted when the temperature is lower than the inside temperature.

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