JPH0431664Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention relates to a cooling/heating device for a hot & cold vending machine that sells beverages in packaged containers.

Conventional technology In recent years, beverage vending machines in packaged containers (hereinafter referred to as vending machines) are hot & cold type (hereinafter referred to as H&C).
shall be. ) has become mainstream, and various types of cooling/heating devices have been adopted.

An example of the conventional cooling/heating device mentioned above will be described below with reference to the drawings.

FIGS. 8 to 13 show a conventional cooling and heating device for an H&C vending machine. Figure 8 is a front view of the main body, 1 is the main body with a heat insulating wall, and a heat insulating partition wall 2
A first storage chamber 3 and a second storage chamber 4 are independently configured on the left and right sides. 5-a is a product storage shelf provided in the first storage room 3, and 5-b is a product storage shelf provided in the second storage room 4. Figure 9 is the first
FIG. 10 is a sectional view of the second storage compartment 4 of the storage compartment 3. A main door 7 having a heat insulating door 6 covering the front openings of the first storage compartment 3 and the second storage compartment 4 is located on the front of the main body 1. installed. At the bottom of the first storage chamber 3, a blower 8-a, a fan ring 9-a, and a heater 10 are installed and attached to a box body 11-a. Second
A blower 8-a, a fan ring 9-b, and an evaporator 12 are attached to a box body 11-b and installed in the lower part of the storage room 4. Furthermore, a compressor 13, a condenser 15, a condenser cooling motor 14, etc. are installed in the lower part of the main body 1, and together with the evaporator 12, they constitute a cooling system. FIG. 12 is a diagram showing the air passage configuration, and FIG. 13 is a diagram showing a cross section of the heat insulating partition wall. The heat insulating partition wall 2 has an upper ventilation opening 16-a and a lower ventilation opening 1 on the upper and lower sides.
6-b, and the shutter 17-a and lower shutter 17-b for opening and closing these ventilation holes are built in. 2 shutters 17-a and 17-
b are connected by a connecting plate 18, and a pin 19 is attached to the connecting plate.
The lever 20 connects to the elongated hole 21 provided in the front-rear direction through the
It is attached to the outside of the insulated partition wall through.
Further, two lever positioning pieces 22-a and 22-b are attached to the upper and lower surfaces of the heat-insulating partition wall. A duct 23-a is provided on the side plate between the fan ring 9-a of the box 11-a of the first storage room 3 and the heat-insulating partition wall, and is connected to the lower ventilation opening 16-b of the heat-insulating partition wall. has been done. Second storage room 4
A duct 23-b is provided on the side plate of the box body 11-b between the fan ring 9-b and the front panel on the side of the heat-insulating partition wall, and is connected to the lower ventilation port 16-b of the heat-insulating partition wall. Further, the two box bodies 11-a and 11-b are provided with suction ports 24-a and 24-b and discharge ports 25-a and 25-b, respectively. 11th
The figure shows an electrical circuit. A cold/hot switch 26, a warm thermostat 27 mounted near the heater 10, a temperature fuse 28, and the heater 10 are connected in series. Further, the blower 8 - a of the first storage room 3 is also connected in series to the cold/hot changeover switch 26 . Blower 8-b in second storage room 4
is directly connected to a power source, and a compressor circuit including a condenser cooling motor 14 and a compressor 13 is connected in series with a cooling thermostat 29 that detects the temperature of the evaporator 12 and turns it on and off.

The operation of the cooling/heating device configured as described above will be explained below.

First, push the lever 21 to the back and lower it, then pull it toward you again to fix it. The two shutters 17-a and 17-b will lower, and the two ventilation holes 16-a and 16 will be lowered.
-b is closed, and the cold/hot selector switch 26
When the first storage chamber 3 is heated, the heater 10 is controlled by the warming thermostat 27 and energized, and the blower 8-a is also energized and heated. At this time, the air path is formed as follows: suction port 24-a→heater 10→fan ring 9-a→blower 8a→discharge port 25-a→product storage shelf 5-a→suction port 24-a. Second
In the storage room 4, a cooling system including a compressor 13, an evaporator 12, etc. is controlled by a cooling thermostat 29, and a blower 8-a is also energized to cool the storage room 4. At this time, the air path is formed as follows: suction port 24-b→evaporator 12→fan ring 9-b→blower 8-b→discharge port 25-b→product storage shelf 5-b→suction port 24-b.

Next, push the lever 21 to the back and raise it, and then pull it toward you again to fix it, and the two shutters 17-a and 17-b will rise, and the two ventilation holes 16-a and 16-
b is opened and the cold/temperature changeover switch 26 is set to cold, the cooling system including the compressor 13, evaporator 12, etc. is controlled and operated by the cooling thermostat 29, while the heater 10 is not energized. Further, the blower 8-a in the first storage compartment 3 is stopped, and only the blower 8-b in the second storage compartment is operated. At this time, the air path is the suction port 24-b of the box 11-b of the second storage 3.
→Evaporator 12→Fan ring 9-b→Blower 8-
b→Discharge port 25-b→Product storage shelf 5-b→Suction port 24-b, and the second storage 3 is cooled.
On the other hand, the air blower 8-b of the second storage 4 increases the pressure between the front panel of the box 11-b of the second storage 4 and the fan ring 9-b, and this pressure increases the pressure between the fan ring 9-b and the box 11-b of the second storage 4. Suction port 24-b → Evaporator 12 → Fan ring 9-b → Blower 8-b → Duct 23-b → Lower ventilation port 16-b → Duct 23
-a→Discharge port 25 of box 11-a of first storage 3
-a→Product storage shelf 5-a→Upper ventilation port 16-a→
The air passage of the suction port 24-b is formed and the first storage 3
is also cooled.

As mentioned above, the lever 19 and the cold/hot selector switch 2
By the operation 6, two types of operation are possible: an operation in which the first storage chamber 3 is heated and the second storage chamber 4 is cooled, and an operation in which both the first storage chamber 3 and the second storage chamber 4 are cooled.

Problems to be Solved by the Invention However, in the above configuration, when both the first storage chamber 3 and the second storage chamber 4 are cooled, two ducts 23-b and 23-a and the lower ventilation passage 16- b
The resistance was large, and the amount of air flowing through the first storage chamber 3 tended to be insufficient. Therefore, compared to the second storage 4, the first storage 3 takes longer to cool down to a certain temperature, has a higher stable temperature, and tends to have larger temperature irregularities throughout the storage. had.

In view of the above-mentioned problems, the present invention has been developed in the first storage
This provides a cooling/heating device that can provide the same cooling performance as the storage 4.

Means for Solving the Problems In order to solve the above problems, the cooling/heating device of the present invention has two ventilation holes installed at regular intervals in the back and forth of the lower part of the heat insulating partition wall and the ventilation holes. The first and second shutters are provided with a shutter that opens and closes simultaneously.
A duct on the partition wall side of the storage box is provided at a portion corresponding to between the fan ring of the second storage box and the evaporator, and is connected to the front ventilation opening of the heat insulating partition wall. A partition plate is provided between the fan ring and the evaporator on the side of the heat insulating partition wall relative to the orifice of the fan ring, and the air flowing from the first storage chamber to the second storage room through the rear ventilation hole of the heat insulating partition wall is stored in the second storage chamber. A rectifying plate is provided behind the evaporator so that the evaporator is guided to the first storage room after passing through the evaporator without being diffused into the room, and a blower is provided that operates regardless of cooling or heating operation. .

Effect The present invention has the above-described configuration, and the blowers in the first and second storage compartments are operated regardless of cooling and heating operations, and the partition plate installed at the rear of the evaporator allows the first and second storage compartments to be connected to each other. The cold air that circulates through the two storage compartments is separated and passes through the evaporator.The cold air that passes through the evaporator is further distributed to the cold air that circulates between the first storage compartment and the second storage compartment by a partition plate between the evaporator and the fan ring, so each partition plate By appropriately determining the position, the amount of air circulating in the first storage will not be insufficient, and the air blowers in the first and second storage will not interfere with each other and cause loss, and can be appropriately set. Furthermore, the cold air to the first storage compartment is separated by a rectifying plate installed behind the evaporator and a partition plate between the fan ring of the first storage compartment and the evaporator, so the cold air is separated by the heat generated by the blower in the second storage compartment. There is no influence, and cold air of the same temperature can be discharged from both the first and second storage chambers. In addition, the cold air that has circulated through the first storage passes through the first ventilation port on the back side of the heat insulating partition wall, is separated by the rectifier plate behind the evaporator, and enters the evaporator, so both the first and second storage have discharge ports in the box. The air path from the inlet to the inlet is exactly the same. As described above, since an appropriate air volume, the same air path, and the same discharge temperature can be ensured in both the first and second storages, equivalent cooling performance can be obtained in the first and second storages.

Embodiment A cooling/heating device according to an embodiment of the present invention will be described below with reference to the drawings. Structures that are the same as those of the conventional device will be given the same reference numerals and detailed explanations thereof will be omitted.

FIG. 1 shows the air passage configuration in an embodiment of the present invention. In Fig. 1, reference numeral 30 is a heat insulating partition wall, and a first
A ventilation port 31-a and a second ventilation port 31-b are provided. Fig. 2 shows the front of the main body, Fig. 3 shows the appearance of the lower part of the heat insulating partition wall 30 as seen from the first storage room 3, and Fig. 4 shows the first and second ventilation holes 31- of the heat insulating partition wall 30.
A horizontal cross section of portions a and b is shown. In the figure, the first and second ventilation ports 31-a and 31-b have a first
The first shutter 32- opens and closes the ventilation port 31-a.
a, a second shutter 32-b that opens and closes the second ventilation port 31-b is connected and attached with a connecting pin 33; The second shutter 32-b includes a first shutter,
A lever 34 for opening and closing the second shutter is attached through a guide pin 35. Further, a third shutter 36 is attached which is flush with the rear vertical surface of the first shutter 32-a. Fifth
The figure shows a heating unit (hereinafter referred to as heating) 37 installed at the bottom of the first storage chamber 3.
This shows the configuration of In Fig. 5, 37 is a heating main body, and a blower 38-a is installed in front of it.
A fan ring 39-a is attached. There is an insulator 4 inside the heating body 37.
A heater 42 is attached to the heater attachment plate 41 via the heater 41. Also, a square hole is formed on the back of the heating main body 37, and the third shutter 36
A third ventilation port 31-c that is opened and closed is provided.
This heating body 37 is attached closely to the heat insulating partition wall 30 so that its side surface covers the second ventilation port 31-b. FIG. 6 shows the structure of a fulling unit (hereinafter referred to as a fulling) 43 attached to the lower part of the second storage chamber 4. As shown in FIG.
In FIG. 6, 44 is an evaporator, and its L-shaped side plate 43 is mounted on a holder 45 attached to the heat insulating partition wall 30 between the first ventilation port 31-a and the second ventilation port 31-b. installed. 39-b is a fan ring having a top surface and a bottom surface, and a blower 38-b is attached to the front surface of the fan ring. Further, inside the fan ring 39-b, there is a side plate 46 that comes into close contact with the left side plate of the evaporator 44 when attached to the main body 1, and a partition plate that comes into close contact with the fin portion of the evaporator 44 and its right side plate at a certain distance. 47 is installed. This fan ring 39-b is attached to a holder 48-a attached to the heat insulating partition wall 30 and a holder 48-b attached to the inner wall of the second storage chamber 4.
A fan ring 39-b is attached to cover the second ventilation port 31-b. The rectifier plate 49 covers the first ventilation port 31-a, is placed in a position symmetrical to the partition plate 47-a with the evaporator 44 in between, and is attached with one end in contact with the heat-insulating partition wall 30.
FIG. 7 shows the electrical circuit. In FIG. 7, a warm thermostat 27, a temperature fuse 28, and a heater 42, which are installed near a cold/hot changeover switch 26 and a heater 42, are connected in series. The blowers 38-a and 38-b in the first and second storage rooms are directly connected to the power supply, the condenser cooling motor 14, and the compressor 13.
The compressor circuits including the compressor circuits are each connected in series with a cooling thermostat 29 that detects the temperature of the evaporator 44.

The operation of the cooling/heating device configured as described above will be described below with reference to FIGS. 1 to 7.

When the lever 34 is pushed to the back, the first and second shutters 32-a and 32-b open the first and second ventilation ports 31-a and 31-b.
is closed, and the third shutter 36 closes the third ventilation port 31-.
c is opened and the cold/hot changeover switch 26 is set to "warm", the heater 42 is controlled by the warm thermostat 27 and energized to heat the first storage chamber 3. At this time, the air path is in the direction of the arrow shown by the solid line in FIG. -c is formed. Second
The storage room 4 is cooled by a cooling system including a compressor 13, an evaporator 44, etc., controlled by a cooling thermostat 29. At this time, the air path is formed in the direction of the arrow shown by the solid line in FIG. 4 as follows: evaporator 44→fan ring 39-b→blower 38-b→product storage shelf 5-b→evaporator 44.

Next, when the lever 34 is pulled toward you, the first and second shutters 32-a and 32-b are opened.
a and b are opened, and the third shutter closes the third ventilation port. Further, when the cold/temperature changeover switch 26 is set to cold, the cooling system including the compressor 13, evaporator 44, etc. is controlled and operated by the cold thermostat 29, while the heater 10 is not energized. At this time, the air path is from the evaporator 44 to the second
The second storage chamber 4 is cooled by the following steps: fan ring 39-b of the storage chamber→blower 38-b of the second storage chamber→product storage shelf of the second storage chamber→evaporator 44. On the other hand, the evaporator 44, the second ventilation port 31-b → the fan ring 39-a of the first storage compartment → the blower 38-a of the first storage compartment → the product storage shelf 5-a of the first storage compartment → the first
The first storage chamber 3 is also cooled by forming the ventilation port 31-a→evaporator 44. 2 blowers 38-a, b
is energized regardless of cooling or heating operation.

As described above, according to this embodiment, when both the first and second storage chambers 3 and 4 are cooled, the cold air is distributed to each chamber behind the evaporator 44 and through the heat insulating partition wall 30.
The rectifying plate 49 and the evaporator 44 are attached in contact with the
A partition plate 47 provided between the fan ring 38-b of the first and second storage compartments 4 and the fan ring 38-b of the first and second storage compartments
Since the flow is divided by operating the air blowers a and b, there is no need to increase the pressure after the air blower 38-a in the first storage room as in the conventional case, so the air blower 38-b can be downsized, and the cooling 43 can also be operated by the air blower 38-a. bThe front panel is also unnecessary, saving space.

Further, according to the present embodiment, in the first storage chamber 3, the heating main body 37 and the fan ring 39-a,
In the second storage chamber 4, an evaporator 44 and a fan ring 39
-b directly constitutes the air passage, and the resistance of the air passage is smaller than when connected by a duct as in the past, and the air volume in the first storage chamber can be efficiently secured.

Effects of the invention As described above, this invention allows two types of operation (cooling, heating, and cooling-cooling) to be performed with the simple operation of a lever and cold/temperature switch, as well as a constant distance between front and rear at the bottom of the insulating partition wall. 2 installed at intervals
The ventilation openings, the 1st and 2nd storage, and the ducts connected at the back of the heating and cooling fan rings, the rectifying plate that diverts the cold air that returns to the evaporator, and the cooling air that has been cooled by the evaporator. A partition plate and two blowers ensure the same cooling performance between the two rooms. Moreover, it also has the following effects.

Since cooling is performed using two blowers in the first and second storage chambers, the size can be made smaller than in the conventional case where cooling is performed using one blower in the second storage chamber, and the cooling capacity is also reduced, resulting in space savings.

Furthermore, by setting the positions of the partition plates, it is possible to easily provide a difference in the set temperatures of the first and second storage chambers.

[Brief explanation of the drawing]

Fig. 1 is an air passage configuration diagram of a cooling/heating device according to an embodiment of the present invention, Fig. 2 is a front view of an H&C vending machine that employs a cooling/heating device according to an embodiment of the present invention, and Fig. 3 is a diagram of the air passage configuration of a cooling/heating device according to an embodiment of the present invention. FIG. 4 is a horizontal cross-sectional view of the heat insulating partition wall of the cooling and heating device of one embodiment, FIG. 5 is a configuration diagram of the heating device, and FIG. 6 is a configuration diagram of the cooling device. , Figure 7 is the electrical circuit diagram, Figure 8 is the front view of the conventional H&C vending machine,
Fig. 9 is a sectional view of the first storage compartment, Fig. 10 is a sectional view of the second storage compartment, Fig. 11 is an electric circuit diagram of the cooling/heating device, and Fig. 12 is the air path of the cooling/heating device. The configuration diagram, FIG. 13, is a vertical cross-sectional view of the same heat-insulating partition wall. 1... Body, 3... First storage room, 4... Second storage room, 13... Compressor, 26... Cold/hot selector switch, 30... Heat insulation partition wall, 31-a... First ventilation port , 31-b...Second ventilation port, 31-c...Third
Ventilation port, 32-a...First shutter, 32-b
...Second shutter, 35...Lever, 36...
Third shutter, 37...Heating body, 3
8-a...Air blower in the first storage room, 38-b...Air blower in the second storage room, 39-a...Heating fan ring, 39-b...Cooling fan ring, 42...Heater, 44 ...evaporator, 47
... Partition plate, 49 ... Rectifier plate.

Claims (1)

[Scope of utility model registration request] A vending machine body and an insulating partition wall that divides the inside of the main body into left and right sides and have a first ventilation opening on the rear side and a second ventilation opening on the front side provided in the back of the lower part in the front-back direction, and the insulation partition wall. two first storage chambers and a second storage chamber with open front surfaces; a first shutter and a second shutter that operate in conjunction to simultaneously open and close the first and second ventilation ports; and a lever that operates the shutters. Then, at the back of the lower part of the first storage room, open the insulating partition wall side that has a fan ring on the front and a third ventilation opening on the back, communicate with the second ventilation opening, and install it closely to the insulation partition wall side. a box body, a blower attached to the fan ring and having a second ventilation port and a third ventilation port selectively on the suction side, a heater installed in the box body, and an automatic controller for controlling the heater. The temperature control device operates in conjunction with the first and second shutters, so that when the first and second ventilation ports are closed, the third ventilation port is opened, and when the first and second ventilation ports are open, the third ventilation port is opened. A third shutter that closes the ventilation opening, an evaporator installed at a certain distance from the back wall at the bottom of the second storage room,
a fan ring and a top plate installed to form a certain space in front of the evaporator; a side plate connecting and sealing the fan ring and a side plate opposite to the heat insulating partition wall of the evaporator; a connecting plate connecting a side plate on the side of the insulating partition wall of the evaporator to an insulating partition wall provided to form a duct connected to the second ventilation port together with the fan ring and the top plate; A rectifier plate that is in contact with the side surface of the insulating partition wall and is provided to guide the air flowing from the first storage chamber to the second storage chamber back into the first storage chamber after passing through the evaporator, and the insulating partition wall of the orifice of the fan ring. a partition plate attached to a side plane part and partitioning a space between the fan ring and the evaporator; a blower attached to the fan ring and having the evaporator side as the suction side; A vending machine that is installed in a lower machine room and is equipped with a compressor and a condenser that together with the evaporator constitute a cooling system, and a door having an insulating wall that covers the front opening of the two insulating storage compartments. Cooling and heating equipment.