JP2005309849A - Vending machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a vending machine in which the configuration of a coolant circuit for collecting exhaust heat generated from a cooling unit is simplified. <P>SOLUTION: The vending machine is provided with: a coolant circuit switching means switching a second condenser 59 and a coolant path to a cooling unit 105; a cooling duct 17 interposing an evaporator 56 in an article depot 1; a heating duct 70 interposing the second condenser; an air duct switching means 20 switching an air duct to one of the cooling duct 17 or the heating duct 70; and an air duct block means 40 blocking the heating blowout port 72 of the heating duct 70. Air in the depot is heated by heat exchange in the second condenser. Furthermore, a heating wind shielding material 31 closing and opening the heating suction port 71 of the heating duct 70 in the air duct switching means 20 is coupled to the blowout port block material 41 of the air duct block material 40 to synchronize with them each other and tilting them. In addition, when lowering a cooling wind shielding material 21 opening and closing a circulating duct blowout port 16, the heating wind shielding material 31 is opened. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vending machine that cools or heats products such as beverages in containers such as cans, bottles, packs, and PET bottles for sale.

FIG. 7 is a side sectional view showing a conventional vending machine.
In the lower part of the heat insulating door 12 (left side in the figure) of the product storage 1, a product take-out port 5 for taking out the product is provided, and a shooter 2 inclined toward the product take-out port 5 is arranged. The interior of the storage 1 is partitioned up and down.
A product rack 4 for collecting the products 3 is disposed above the shooter 2, and a cutting device 13 for cutting out the products 3 is installed at the lower stage of the product rack 4.
Further, below the shooter 2, a heat exchange chamber 90 that houses an evaporator 56 as air cooling means, a heater 7 as air heating means, and a blower fan 9 as air blowing means is arranged.

Furthermore, circulation ducts 11 having a predetermined interval are arranged substantially parallel to the rear wall 14 (right side in the drawing) of the product storage 1. A circulation duct suction port 15 that opens to reach the position of the product rack 4 is provided above the circulation duct 11, and a circulation duct outlet 16 that opens to communicate with the heat exchange chamber 90 is provided below the circulation duct 11. It has been.
Therefore, the air sent by the blower fan 9 passes through a vent hole (not shown) provided in the shooter 2, is sucked into the circulation duct 11 through the inside of the product rack 4, and again enters the heat exchange chamber 90. Since it returns, air circulates in the product storage 1.

  The shooter 2 is inclined so as to gradually become lower toward the front (left side in the figure), and sends the product 3 dropped from the product rack 4 to the product take-out port 10 via the product carry-out port 5. Further, the shooter 2 is provided with a vent hole (not shown) for allowing the air blown out by the blower fan 9 (cooled or heated air) to flow above the shooter 2 and circulate inside the product storage 1. It has been.

  Since the conventional vending machine 900 has the above-described configuration, for example, when the cooling unit 905 is operated to supply cold heat to the evaporator 56, the circulating air is cooled and cooled by heat exchange in the evaporator 56. Air blows out toward the product rack 4 through the ventilation holes, and cools the product 3 accumulated in the product rack 4. The air warmed by the heat exchange returns to the evaporator 56 again via the circulation duct 11.

On the other hand, when the supply of cold heat to the evaporator 56 is stopped and the air is heated by energizing the heater 7, the heated air is blown out toward the product rack 4 through the vent holes and accumulated in the product rack 4. The finished product 3 is heated. The air cooled by the heat exchange returns to the heater 7 again via the circulation duct 11.
That is, the air in the product storage 1 is circulated while repeating heat exchange.

  FIG. 8 is a block diagram showing a cooling unit in a conventional vending machine. In FIG. 8, this vending machine has a plurality of product storages (not shown, hereinafter may be referred to as product storages 1a, 1b, 1c for convenience of explanation). The heater as the heating means is removed, and the heat dissipated by the condenser of the cooling unit is recovered for heating the product.

That is, the cooling unit 905 includes a compressor 51 that compresses the refrigerant, a condenser 53 that condenses the high-pressure refrigerant compressed by the compressor 51, and an expansion mechanism 54 (electronic) that decompresses the high-pressure refrigerant condensed by the condenser 53. Expansion valves, capillary tubes, and the like), low-temperature and low-pressure refrigerants that are decompressed by the expansion mechanism 54, and distribution valves 55a, 55b, and 55c that distribute the refrigerant to each product storage, and low-temperature and low-pressure refrigerant that is installed and supplied to each product storage. Evaporators 56a, 56b, and 56c, an accumulator 58 that accumulates the low-pressure refrigerant heated in the evaporators 56a, 56b, and 56c, and a cooling pipe 60 that connects these devices.
Further, the high-pressure refrigerant compressed by the compressor 51 is directly supplied to the evaporators 56b and 56c, and the high-pressure refrigerant heat-exchanged in the evaporators 56b and 56c is supplied upstream of the expansion mechanism 54. The heating pipes 61b and 61c are provided with on-off valves 52b and 52c.

FIG. 9 is a configuration diagram showing an example of the operation in the cooling unit shown in FIG. In FIG. 9, the product storage 1a, 1b is supplied to the refrigerator, ie, the evaporators 56a, 56b, and the low-temperature and low-pressure refrigerant is supplied to the product storage 1c. doing. The heating pipe 61c and the flat heat pipe 62c through which the refrigerant flows are shown by solid lines, and the cold heating pipe 61b and the flat heat pipe 62b through which no refrigerant flows are shown by broken lines.
That is, the on-off valves 55c and 57c installed in the cooling pipe 60 are closed, the supply of the low-temperature and low-pressure refrigerant to the evaporator 56c is stopped, and the on-off valve 52c installed in the heating pipe 61c is opened, It is supplied to the evaporator 56c. Therefore, the high-temperature and high-pressure refrigerant is condensed by exchanging heat in the evaporator 56c, and merges with the low-temperature and high-pressure refrigerant in the cooling pipe 60 upstream of the expansion mechanism 54 via the flat heat pipe 62c.
As a result, the heat dissipated from the condenser 53 installed outside the product storage can be recovered in the evaporator 56c installed in the product storage 1c, so that automatic sales with a high power-saving effect are possible. A machine is provided (for example, see Patent Document 1).

Japanese Patent Laid-Open No. 5-233941 (2nd page, FIG. 1)

  However, since the invention disclosed in Patent Document 1 uses the evaporator in the product storage as a condenser, the piping system for circulating the refrigerant (hereinafter referred to as “refrigerant circuit”) becomes complicated, There is a problem that the operation of the on-off valve installed in the refrigerant circuit becomes complicated.

  The present invention is for solving the above-described problems, and an object thereof is to obtain a vending machine capable of simplifying the configuration of a refrigerant circuit for recovering exhaust heat of a cooling unit.

The vending machine according to the present invention (Claim 1) is a heat insulating material that is surrounded by a heat insulating material and has an opening provided on one side thereof, and a product carry-out port for carrying out a product, so that the opening can be opened and closed freely. A product storage comprising a door;
A product rack which is arranged in the product storage and has a function of storing products and sequentially transporting them downward;
A shooter for guiding a product dropped from the product rack to the product exit;
A blower duct installed below the shooter and provided with blower means for sending air; and
A circulation duct for returning the air sent by the blowing means to the blowing means via the inside of the commodity rack;
A cooling duct in which the post-evaporator is disposed, connecting the circulation duct and the air duct;
Connecting the circulation duct and the blower duct, and a heating duct in which a second condenser described later is disposed;
Air path switching means for switching the air path to allow air flowing through the circulation duct to flow into one of the cooling duct or the heating duct;
A compressor that compresses the refrigerant, a first condenser and a second condenser that condense the refrigerant compressed by the compressor, and a refrigerant condensed by one or both of the first condenser and the second condenser. An expansion mechanism for depressurization, an evaporator for evaporating the refrigerant depressurized by the expansion mechanism, and the compressor, the first condenser, the second condenser, the depressurization mechanism, and the evaporator are connected to circulate the refrigerant. A cooling unit comprising a refrigerant circuit and refrigerant circuit switching means installed in the refrigerant circuit to switch a refrigerant flow path;
The air path switching means is switched to allow air to flow from the circulation duct to the cooling duct, and the refrigerant circuit switching means is switched to cause the refrigerant to flow into the evaporator and to allow the refrigerant to flow into the second condenser. Cooling the air in the product storage by stopping,
Alternatively, the air path switching means is switched to allow air to flow from the circulation duct to the heating duct, and the refrigerant circuit switching means is switched to stop the flow of refrigerant into the evaporator and to the second condenser. The air in the product storage is heated by injecting the refrigerant.

The vending machine according to the present invention (Claim 2) is a heat insulating member that is surrounded by a heat insulating material and has an opening provided on one side thereof, and a product unloading port for carrying out the product, and is capable of opening and closing the opening. A product storage comprising a door;
A product rack that is disposed in each of the one product storage and the other product storage and has a function of storing products and sequentially transporting them downward;
A shooter for guiding a product dropped from the product rack to the product exit;
A blower duct installed below the shooter and provided with blower means for sending air; and
A circulation duct for returning the air sent by the blowing means to the blowing means via the inside of the commodity rack;
A cooling duct in which the post-evaporator is disposed, connecting the circulation duct and the air duct;
Connecting the circulation duct and the blower duct, and a heating duct in which a second condenser described later is disposed;
Air path switching means for switching the air path to allow air flowing through the circulation duct to flow into one of the cooling duct or the heating duct;
A compressor that compresses the refrigerant, a first condenser and a second condenser that condense the refrigerant compressed by the compressor, and a refrigerant condensed by one or both of the first condenser and the second condenser. An expansion mechanism for depressurization, an evaporator for evaporating the refrigerant depressurized by the expansion mechanism, and the compressor, the first condenser, the second condenser, the depressurization mechanism, and the evaporator are connected to circulate the refrigerant. A cooling unit comprising a refrigerant circuit and refrigerant circuit switching means installed in the refrigerant circuit to switch a refrigerant flow path;
A refrigerant having a predetermined heating temperature is supplied from the first condenser to the second condenser, and in the other product storage, the air path switching means is switched to allow air to flow from the circulation duct to the heating duct. Heating the air;
Further, the refrigerant condensed in the second condenser is supplied to the condenser of the one product storage, and the air passage switching means is switched in the one product storage to change the circulation duct to the cooling duct. It is characterized in that air is introduced to cool the air.

The vending machine according to the present invention (Claim 3) has a plurality of the product storages, and each of the product storages opens a heating outlet that is a communication portion between the heating duct and the air duct. The air duct closing means for closing, and the heating duct installed in each of the commodity storages communicates,
When cooling one of the product storages, the air path switching means of the one product storage is switched to allow air to flow from the circulation duct to the cooling duct and to stop the flow of air from the circulation duct to the heating duct. And the refrigerant circuit switching means is switched to allow the refrigerant to flow into the evaporator of the one commodity storage, and the air outlet closing means is a communication port between the heating duct and the air duct. Cooling the air in the product storage by closing the
And when heating the other of the product storage, the air passage switching means of the other product storage is switched to stop the inflow of air from the circulation duct to the cooling duct, and the air from the circulation duct to the heating duct And the refrigerant circuit switching means is switched to stop the refrigerant from flowing into the evaporator of the other product storage, and the refrigerant is allowed to flow into the second condenser. The air in the product storage is heated by opening a heating outlet which is a communicating portion between the heating duct and the air duct by means.

The vending machine according to the present invention (Claim 4) is characterized in that the air path switching means opens and closes a heating air inlet that opens and closes a heating inlet that is a communication portion between the circulation duct and the heating duct, A drive arm fixed to the material,
The air passage closing means includes a blowout outlet closing member that opens and closes a heating outlet that is a communication portion between the heating duct and the air duct, and a driven arm fixed to the outlet closing member,
When the driving arm and the driven arm are connected by a linkage arm, opening and closing of the heating wind shield material opens and closes the blowout port closing material in association with the opening and closing.

The vending machine according to the present invention (Claim 5) is characterized in that the air path switching means opens and closes a circulation duct outlet that is a communication portion between the circulation duct and the cooling duct, and the cooling shield. A push-out projection fixed to the wind material and extending downward, a heating wind shield material that opens and closes a heating suction port that is a communication portion between the circulation duct and the heating duct, and the heating wind shield material in a predetermined direction And a spring that biases toward the
When the cooling windshield opens the circulation duct outlet, the heating windshield is urged in a predetermined direction by the spring to close the heating inlet.
On the other hand, when the cooling wind-shielding material closes the circulation duct outlet, the heating wind-shielding material is pushed open by the push-opening projections in contact therewith, and the heating suction port is opened. .

The vending machine according to the present invention (Claim 6) is characterized in that the refrigerant is HC refrigerant or CO ₂ refrigerant.

  In the vending machine according to the present invention (claim 1), the condenser is composed of a plurality of first condensers and second condensers, the first condenser is outside the commodity storage, and the second condenser is the commodity. Since it is installed in the heating duct provided in the storage, the air in the product storage is heated by heat exchange in the second condenser, so that the exhaust heat of the cooling unit is effectively recovered. At the same time, the configuration of the refrigerant circuit is simplified.

  In the vending machine according to the present invention (Claim 2), the condenser is composed of a plurality of a first condenser and a second condenser connected in series to the first condenser. A refrigerant heated to a predetermined temperature is supplied to heat the air in the other product storage, and further, the refrigerant condensed by the heating is supplied to an evaporator in one product storage to Since the air is cooled, the exhaust heat of the cooling unit is effectively recovered and the configuration of the refrigerant circuit is further simplified.

  The vending machine according to the present invention (Claim 3) has a plurality of product storage boxes, which have a common heating duct, and one second condenser is installed in the heating duct. Since there is no need to install a second condenser in each of the plurality of product storages, the second condenser can be limited to one unit, and the configuration of the refrigerant circuit is simplified.

  In the vending machine according to the present invention (Claim 4), a heating wind shielding material that opens or closes the heating suction port of the heating duct and an air outlet closing material that opens or closes the heating air outlet of the heating duct are linked. Therefore, the tilting means for moving the heating windshield material and the outlet closing member is simplified, and each of the heating inlet and the heating outlet of the heating duct is reliably opened or closed in synchronization.

  In the vending machine according to the present invention (Claim 5), when the cooling windshield material that opens or closes the circulation duct outlet is lowered, the heating windshield material that opens or closes the heating inlet of the heating duct is cooled. Since it is pushed open by the windshield material, the tilting means for tilting the heated windshield material becomes unnecessary.

In the vending machine according to the present invention (Claim 6), since the refrigerant is HC refrigerant or CO ₂ refrigerant, an environmentally friendly and efficient refrigeration cycle is formed in the cooling unit.

  Embodiments will be described below with reference to the drawings. The same reference numerals are given to the same portions as those in the following drawings or background art (FIGS. 7 to 9), and a part of the description will be omitted.

(Product storage)
1 and 2 schematically show the configuration of an embodiment according to the vending machine of the present invention. FIG. 1 (a) is a side sectional view, FIG. 1 (b) is a front sectional view, FIGS. 2A and 2B are cross-sectional views in side view showing a part thereof enlarged.
In FIG. 1 (b), the vending machine 100 is partitioned into three chambers 1a, 1b, and 1c by the partition walls 8ab and 8bc. The product storage 1a is dedicated to cooling, and the product storage 1b and the product storage 1c are also used for cooling and heating. In addition, about the member installed in goods storage 1a, 1b, 1c, a, b, c is attached | subjected to a code | symbol, respectively, and in description of the member common to goods storage 1a, 1b, 1c, to a code | symbol Additional notes for a, b, and c are omitted.

(Cooling duct)
1 and 2, an evaporator 56 and a blower fan 9 are installed on the floor 19 of the commodity storage 1. The evaporator 56 is disposed in the cooling duct 17 that communicates with the circulation duct outlet 16 of the circulation duct 11, and the blower fan 9 is disposed in the blower duct 18 that communicates with the cooling duct 17.
That is, the background heat exchange chamber 90 (see FIG. 7) is referred to as an upstream cooling duct 17, a downstream air duct 18, and a heating duct 70 described later.

(Heating duct)
A heating duct 70 is provided below the product storage 1b and the product storage 1c. The heating duct 70 is communicated with the circulation duct 11b and the air duct 18b of the product storage 1b and the circulation duct 11c and the air duct 18c of the product storage 1c, respectively, and the surroundings are insulated (shown by diagonal lines in the figure). It is surrounded by.
That is, the floors 19b and 19c of the product storage 1b and 1c communicate with the openings 71b and 71c (hereinafter referred to as “heating inlets”) communicating with the circulation ducts 11b and 11c and the air ducts 18b and 18c. Openings 72b and 72c (hereinafter referred to as “heating outlets”) are provided, and a heating duct 70 is formed in such a form that the heating inlets 71b and 71c and the heating outlets 72b and 72c communicate with each other. A container 59 (which will be described in detail later) is arranged. In addition, the magnitude | size of the heating inlet 71, the heating blower outlet 72, a heat insulating material, and another apparatus to show in figure is an illustration, Comprising: It does not limit to this.

(Wind path)
Air passage switching means 20b and 20c (which will be described in detail later) are provided at the heating suction ports 71b and 71c, respectively. The air flowing through the circulation duct 11 is supplied to the cooling duct 17 or the heating duct. It is sent to one of the ducts 70 (same as stopping air flow to the other).
In addition, air passage closing means 40b and 40c (which will be described in detail later) for opening or closing the air outlets 72b and 72c are installed in the heating air outlets 72b and 72c, respectively, to the heating duct 70 for air flowing through the air duct 18. Intrusion is prevented.
In the figure, the arrows conceptually indicate the air paths (wind flow), but in reality, the air paths are formed toward all the product racks 4 and exhibit a complicated aspect.

  Therefore, for example, if the air path switching means 20b of the product storage 1b is switched and the air flowing through the circulation duct 11 is sent to the cooling duct 17b (the same as closing the heating suction port 71b), the air is sent to the evaporator 56b. It will be cooled by. At this time, since the heating air outlet 72b is closed by the air passage closing means 40b, the cooled air does not enter the heating duct 70 (see FIG. 2A).

  On the other hand, if the air path switching means 20c of the product storage 1c is switched and the air flowing through the circulation duct 11c is sent to the heating duct 70 (the same as closing the circulation duct outlet 16c), the air is supplied to the second condenser. 59 is heated and sucked into the blower fan 9c through the heating outlet 72c. At this time, since the heating outlet 72b of the adjacent product storage chamber 1b is closed by the air passage closing means 40b, the heated air does not enter the air duct 18b of the adjacent product storage chamber 1b (FIG. 2 (b)).

(Cooling unit 1)
FIG. 3 is a block diagram showing a cooling unit in the embodiment according to the vending machine of the present invention. In FIG. 3, the cooling unit 105 includes a compressor 51 that compresses the refrigerant, a first condenser 53 and a second condenser 59 that condense the high-pressure refrigerant compressed by the compressor 51, a first condenser 53, and a first condenser 53. An expansion mechanism 54 (an electronic expansion valve, a capillary tube, etc.) that decompresses the high-pressure refrigerant condensed by one or both of the condensers 59, and an on-off valve that distributes the low-temperature low-pressure refrigerant decompressed by the expansion mechanism 54 to each product storage 55a, 55b, 55c and evaporators 56a, 56b, 56c, which are installed in each product storage and evaporate the supplied low-temperature low-pressure refrigerant, and the low-pressure refrigerant heated in the evaporators 56a, 56b, 56c are accumulated. An accumulator 58 and a cooling pipe 60 for connecting these devices are provided.

  That is, the condenser 53 in the background art is divided into two units, a first condenser 53 and a second condenser 59. And the 2nd condenser 59 is arrange | positioned in parallel with the 1st condenser 53 by the heating piping 69, and the opening / closing valve (having the flow volume adjustment function) 52f and 52e is installed in each inlet side. The installation of the accumulator 58 may be saved, and a check valve (backflow prevention valve) may be appropriately disposed.

(CCC mode)
Since the cooling unit 105 has the above-described configuration, for example, in the cooling mode in which all of the product storage 1a, 1b, and 1c are cooled, the on-off valve 52f is closed and the high-temperature and high-pressure refrigerant is supplied to the second condenser 59. And the on-off valves 55a, 55b, and 55c are all opened, and the low-temperature and low-pressure refrigerant is supplied to the evaporators 56a, 56b, and 56c.

(CCH mode)
In the cooling mode in which the product storage 1a, 1b is cooled and the product storage 1c is heated, the on-off valve 52f is opened to supply the high-temperature high-pressure refrigerant to the second condenser 59, while the on-off valve 55a, 55b is opened to supply the low-temperature and low-pressure refrigerant to the evaporators 56a and 56b, and the on-off valve 55c is closed to stop the supply of the low-temperature and low-pressure refrigerant to the evaporator 56c.
At this time, the air path switching means 20b, 20c and the air path closing means 40b, 40c are operated to flow air from the circulation duct 11b of the product storage 1b to the cooling duct 17b, and from the circulation duct 11c of the product storage 1c. Will cause air to flow through the heating duct 70.

(CHH mode)
Further, in the cooling mode in which the product storage 1a is cooled and the product storages 1b and 1c are heated, the on-off valve 52f is opened to supply the high-temperature and high-pressure refrigerant to the second condenser 59, while the on-off valve 55a is turned on. Open and supply the low-temperature and low-pressure refrigerant to the evaporator 56a, and close the on-off valves 55b and 55c to stop the supply of the low-temperature and low-pressure refrigerant to the evaporators 56b and 56c.
At this time, the air path switching means 20b, 20c and the air path closing means 40b, 40c are operated to flow air from the circulation ducts 11b, 11c of the product storage 1b, 1c to the heating duct 70, respectively.

(Cooling unit 2)
FIG. 4 is a block diagram showing another embodiment of the cooling unit in the embodiment according to the vending machine of the present invention.
In FIG. 4, the cooling unit 205 includes a first condenser 53 and a second condenser 59 arranged in parallel in that the first condenser 53 and the second condenser 59 are arranged in series with the cooling pipe 60. Although it is different from the cooling unit 105 (see FIG. 3), the description is omitted because it is the same in other respects.
Since the cooling unit 205 has the above configuration, the high-pressure refrigerant always flows through both the first condenser 53 and the second condenser 59. Therefore, the heat radiation amount in each of the first condenser 53 and the second condenser 59 is controlled by the operation of the external fan 6 or the blower fan 9.

(CCC mode)
For example, in the cooling mode in which all of the product storage 1a, 1b, and 1c are cooled, the ventilation of the external fan 6 is strengthened, and the refrigerant temperature when passing through the second condenser 59 is sufficiently lowered. Then, all of the on-off valves 55a, 55b, and 55c are opened, and the low-temperature and low-pressure refrigerant is supplied to the evaporators 56a, 56b, and 56c.
At this time, the air path switching means 20b, 20c and the air path closing means 40b, 40c are operated to close the heating inlets 71b, 71c and the heating outlets 72b, 72c of the heating duct 70.

(CCH mode)
In the cooling mode in which the product storage 1a, 1b is cooled and the product storage 1c is heated, the ventilation of the external fan 6 is adjusted to set the refrigerant temperature supplied to the second condenser 59 to a predetermined value. Keep it hot. Then, the on-off valve 55c for the product storage 1c is closed, and the air path switching means 20c and the air path closing means 40c are operated to flow air from the circulation duct 11c to the heating duct 70.
If it does so, since air will be heated by the heat exchange in the 2nd condenser 59, and a refrigerant | coolant will be condensed, this condensed refrigerant | coolant will be supplied to goods storage 1a, 1b. That is, the on-off valves 55a and 55b for the product storage 1a and 1bc are opened to supply the refrigerant to the evaporators 56a and 56b.
At this time, the air path switching means 20b and 20c and the air path closing means 40b and 40c are operated to flow air through the cooling duct 17b in the product storage 1b to close the heating inlet 71b and the heating outlet 72b. In the commodity storage 1c, air is passed through the heating duct 70 to close the circulation duct outlet 16c (same as the cooling duct 17c).

(CHH mode)
Further, in the cooling mode in which the product storage case 1a is cooled and the product storage cases 1b and 1c are heated, the temperature of the refrigerant supplied to the second condenser 59 is adjusted to a predetermined value by adjusting the ventilation of the outside fan 6. Keep it hot. Then, the on-off valves 55b and 55c for the product storage 1b and 1c are closed, and the air path switching means 20c and the air path closing means 40c are operated to flow air from the circulation ducts 11b and 11c to the heating duct 70.
If it does so, since air will be heated by the heat exchange in the 2nd condenser 59 and a refrigerant | coolant will be condensed, this condensed refrigerant | coolant will be supplied to the goods storage 1a. That is, the on-off valve 55a for the product storage 1a is opened to supply the refrigerant to the evaporator 56a.
At this time, the air path switching means 20b, 20c and the air path closing means 40b, 40c are operated to close the circulation duct outlets 16b, 16c in the product storage 1b, 1c, while the heating inlets 71b, 71c. And the air outlets 72 b and 72 c are opened, and air is passed through the heating duct 70.

(Airway switching means, airway blocking means)
FIG. 5 is a perspective view showing a part of the air path switching means and the air path closing means in the embodiment according to the vending machine of the present invention.
In FIG. 5, the air path switching means 20 is a heating that can freely open and close the cooling wind shield 21 that can open and close the circulation duct outlet 16 communicating with the cooling duct 17 and the heating suction port 71 of the heating duct 70. And a windshield 31.
On the other hand, the air passage closing means 40 has an outlet closing member 41 that can freely open and close the heating outlet 72 of the heating duct 70. And the heating windshield material 31 and the blower outlet obstruction | occlusion material 41 are connected by the linkage mechanism (this is demonstrated in detail separately).

(Cooling windshield)
The cooling windshield 21 has an opening that can freely close the circulation duct outlet 16, and has a push-out protrusion 22 that extends downward and a guide hole 24 through which the elevating guide 23 installed in the circulation duct 11 passes. Is provided.
In addition, a solenoid 25 is installed in the circulation duct 11, and a plunger 26 that is moved forward and backward by the solenoid 25 is connected to the cooling wind shield 21 via a link mechanism 27.
Therefore, when the solenoid 25 advances the plunger 26, the link mechanism 27 is folded and the cooling windshield 21 is pulled up. At this time, since the movement amount of the solenoid 25 (same as the movement amount of the plunger 26) is amplified by the link mechanism 27, the cooling wind insulating material 21 that has closed the circulation duct outlet 16 is replaced with the circulation duct outlet 16. It can be lifted a sufficient distance to open.

(Heating windshield)
On the other hand, when the cooling wind shield 21 is pulled up and the circulation duct outlet 16 is opened, the heating wind shield 31 closes the heating suction port 71 of the heating duct 70. In other words, the heating wind shield 31 has a wide enough to close the heating inlet 71 and is provided with a rotating shaft 32 (hereinafter referred to as “heating wind shield shaft”). The heating wind shield shaft 32 is rotatably supported by the circulation duct 11 or the floor surface 19, and the heating wind shield spring 33 (according to the air outlet closing spring 43 described later) so that the heating wind shield 31 is in a horizontal posture. Is energized by.
In FIG. 5, in order to clearly show the cooling windshield material 21 and the heating windshield material 31, the cooling windshield material 21 and the heating windshield material 31 that are originally horizontal are shown in a slightly tilted posture. Yes.

(Air outlet closing material)
The blower outlet closing member 41 has a wide enough to close the heating suction port 71, and is provided with a rotating shaft 42 (hereinafter referred to as “blower outlet closing shaft”). The air outlet closing shaft 42 is rotatably supported on the floor surface 19 and is urged by the air outlet closing spring 43 so that the air outlet closing member 41 is in a horizontal posture.

(Linkage mechanism)
FIG. 6 is a perspective view schematically illustrating the linkage mechanism in the embodiment of the vending machine of the present invention. In FIG. 6, a drive arm 34 having a predetermined length is fixed to a heating wind shielding material 31 (same as the heating wind shielding shaft 32) installed in the heating suction port 71 of the heating duct 70, while installed in the heating air outlet 72. A driven arm 44 having substantially the same length as the drive arm 34 is fixed to the blower outlet closing member 41 (same as the blower outlet closing shaft 42). The substantially distal end portion of the drive arm 34 and the substantially distal end portion of the driven arm 44 are coupled to each other by a linkage arm 45 so as to be rotatable.

  Therefore, when the cooling windshield 21 is lowered, the lower end of the push-out projection 22 comes into contact with the heating windshield 31, so that the heating windshield 31 is tilted about the heating windshield 32. That is, when the circulation duct outlet 16 is closed, the heating inlet 71 of the heating duct 70 is opened at the same time.

  At this time, the heating wind shield shaft 32 rotates by approximately 90 °. For this reason, the drive arm 34 fixed to the heating wind shield shaft 32 tilts from a substantially vertically standing state to a horizontally flattened state. Therefore, this operation is transmitted to the driven arm 44 via the linkage arm 45. The That is, the circulation duct outlet 16 is closed and the air path to the cooling duct 17 is cut off, and at the same time, the heating inlet 71 and the heating outlet 72 of the heating duct 70 are opened synchronously, and the second condenser 59 is opened. An air passage that passes through is formed.

(Other embodiments)
The above is an example in which the product storage is three rooms, a common heating duct is provided in two of the rooms, and one second condenser is arranged in the heating duct. The invention is not limited to this, and the number of rooms of the product storage and the number of second condensers may be any.
For example, you may divide | segment a 2nd condenser into several and each arrange | positions to each goods storage. At this time, since the air cooled from the other product storage does not enter the heating duct provided for each product storage, the air passage blocking means may be removed.
Further, the air path switching means exemplifies a cooling wind shielding material that moves up and down by a link function. However, the present invention is not limited to this. For example, an actuator or a rack / pinion mechanism that performs translational motion is connected to the circulation duct. You may arrange | position and move up and down by this.
Further, the heating wind shielding material of the air path switching means and the air outlet closing material of the air path closing means are not limited to those connected by the linkage arm, for example, the tilting means is removed by removing the linkage arm. May be installed. Or you may translate a heating wind-shielding material or a blower outlet obstruction | occlusion material instead of tilting.

  Since the present invention has the above configuration, it can be widely used as a simple and effective energy saving means in various vending machines.

The sectional view of the side view showing typically the composition of the embodiment concerning the vending machine of the present invention. Sectional drawing which expands and shows a part of vending machine shown in FIG. The block diagram which shows the cooling unit of the vending machine shown in FIG. The block diagram which shows other embodiment of the cooling unit of the vending machine shown in FIG. The perspective view which shows the air path switching means and the air path obstruction | occlusion means of the vending machine shown in FIG. The perspective view explaining the linkage mechanism of the vending machine shown in FIG. Sectional drawing of the side view which shows the conventional vending machine. The block diagram which shows the cooling unit in the conventional vending machine. The block diagram which shows an example of the action | operation in the cooling unit shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Commodity storage 2 Shota 3 Commodity 4 Commodity rack 5 Commodity exit 6 Fan outside the heater 7 Heater 8ab Bulkhead 8bc Bulkhead 9 Blower fan 10 Cutting device 11 Circulating duct 12 Thermal insulation door 13 Cutting device 14 Rear wall 15 Circulating duct inlet 16 Circulation Duct outlet 17 Cooling duct 18 Air duct 19 Floor surface 20 Air path switching means 21 Cooling wind shield 22 Push-open projection 23 Lift guide 24 Guide hole 25 Solenoid 26 Plunger 27 Link mechanism 31 Heat wind shield 32 Heat wind shield shaft 33 Heating wind shield spring 34 Drive arm 40 Air passage closing means 41 Air outlet closing material 42 Air outlet closing shaft 43 Air outlet closing spring 44 Driven arm 45 Linking arm 51 Compressor 52e Open / close valve 52f Open / close valve 53 First condenser 54 Expansion mechanism 55a On-off valve 55b On-off valve 55c On-off valve 56 evaporator 58 accumulator 59 second condenser 60 cooling pipe 69 heating pipe 70 heating duct 71 heating inlet 72 heating outlet 100 vending machine 105 cooling unit 205 cooling unit

Claims (6)

A product storage room including a housing surrounded by a heat insulating material and provided with an opening on one surface, and a heat-insulating door provided with a product outlet for carrying out the product and capable of opening and closing the opening;
A product rack which is arranged in the product storage and has a function of storing products and sequentially transporting them downward;
A shooter for guiding a product dropped from the product rack to the product exit;
A blower duct installed below the shooter and provided with blower means for sending air; and
A circulation duct for returning the air sent by the blowing means to the blowing means via the inside of the commodity rack;
A cooling duct in which the circulation duct and the blower duct are connected, and an evaporator described later is disposed;
Connecting the circulation duct and the blower duct, and a heating duct in which a second condenser described later is disposed;
Air path switching means for switching the air path to allow air flowing through the circulation duct to flow into one of the cooling duct or the heating duct;
A compressor that compresses the refrigerant, a first condenser and a second condenser that condense the refrigerant compressed by the compressor, and a refrigerant condensed by one or both of the first condenser and the second condenser. An expansion mechanism for depressurization, an evaporator for evaporating the refrigerant depressurized by the expansion mechanism, and the compressor, the first condenser, the second condenser, the depressurization mechanism, and the evaporator are connected to circulate the refrigerant. A cooling unit comprising a refrigerant circuit and refrigerant circuit switching means installed in the refrigerant circuit to switch a refrigerant flow path;
The air path switching means is switched to allow air to flow from the circulation duct to the cooling duct, and the refrigerant circuit switching means is switched to cause the refrigerant to flow into the evaporator and to allow the refrigerant to flow into the second condenser. Cooling the air in the product storage by stopping,
Alternatively, the air path switching means is switched to allow air to flow from the circulation duct to the heating duct, and the refrigerant circuit switching means is switched to stop the flow of refrigerant into the evaporator and to the second condenser. A vending machine that heats the air in a product storage box by injecting a refrigerant. A product storage room including a housing surrounded by a heat insulating material and provided with an opening on one surface, and a heat-insulating door provided with a product outlet for carrying out the product and capable of opening and closing the opening;
A product rack that is disposed in each of the one product storage and the other product storage and has a function of storing products and sequentially transporting them downward;
A shooter for guiding a product dropped from the product rack to the product exit;
A blower duct installed below the shooter and provided with blower means for sending air; and
A circulation duct for returning the air sent by the blowing means to the blowing means via the inside of the commodity rack;
A cooling duct in which the post-evaporator is disposed, connecting the circulation duct and the air duct;
Connecting the circulation duct and the blower duct, and a heating duct in which a second condenser described later is disposed;
Air path switching means for switching the air path to allow air flowing through the circulation duct to flow into one of the cooling duct or the heating duct;
A compressor that compresses the refrigerant, a first condenser and a second condenser that condense the refrigerant compressed by the compressor, and a refrigerant condensed by one or both of the first condenser and the second condenser. An expansion mechanism for depressurization, an evaporator for evaporating the refrigerant depressurized by the expansion mechanism, and the compressor, the first condenser, the second condenser, the depressurization mechanism, and the evaporator are connected to circulate the refrigerant. A cooling unit comprising a refrigerant circuit and refrigerant circuit switching means installed in the refrigerant circuit to switch a refrigerant flow path;
A refrigerant having a predetermined heating temperature is supplied from the first condenser to the second condenser, and in the other product storage, the air path switching means is switched to allow air to flow from the circulation duct to the heating duct. Heating the air;
Further, the refrigerant condensed in the second condenser is supplied to the condenser of the one product storage, and the air passage switching means is switched in the one product storage to change the circulation duct to the cooling duct. A vending machine characterized in that air is introduced to cool the air. There are a plurality of the product storages, each of the product storages has air passage closing means for opening or closing a heating outlet which is a communication portion between the heating duct and the air duct, and the product storage The heating ducts installed in each of the warehouses communicate,
When cooling one of the product storages, the air path switching means of the one product storage is switched to allow air to flow from the circulation duct to the cooling duct and to stop the flow of air from the circulation duct to the heating duct. And the refrigerant circuit switching means is switched to allow the refrigerant to flow into the evaporator of the one commodity storage, and the air outlet closing means is a communication port between the heating duct and the air duct. Cooling the air in the product storage by closing the
And when heating the other of the product storage, the air passage switching means of the other product storage is switched to stop the inflow of air from the circulation duct to the cooling duct, and the air from the circulation duct to the heating duct And the refrigerant circuit switching means is switched to stop the refrigerant from flowing into the evaporator of the other product storage, and the refrigerant is allowed to flow into the second condenser. 3. The vending machine according to claim 1 or 2, wherein the air in the product storage is heated by opening a heating outlet which is a communicating part between the heating duct and the air duct by means. The air path switching means comprises a heating wind shield material that opens and closes a heating suction port that is a communication portion between the circulation duct and the heating duct, and a drive arm fixed to the heating wind shield material,
The air passage closing means includes a blowout outlet closing member that opens and closes a heating outlet that is a communication portion between the heating duct and the air duct, and a driven arm fixed to the outlet closing member,
4. The blowout port closing member is opened and closed in conjunction with the opening and closing of the heating windshield material by connecting the driving arm and the driven arm by a linkage arm. vending machine. The air path switching means is a cooling wind shield material that opens and closes a circulation duct outlet that is a communication portion between the circulation duct and the cooling duct, and a push-out protrusion that is fixed to the cooling wind shield material and extends downward. And a heating windshield material that opens and closes a heating suction port that is a communication portion between the circulation duct and the heating duct, and a spring that biases the heating windshield material in a predetermined direction,
When the cooling windshield opens the circulation duct outlet, the heating windshield is urged in a predetermined direction by the spring to close the heating inlet.
On the other hand, when the cooling wind-shielding material closes the circulation duct outlet, the heating wind-shielding material is pushed open by the push-opening projections in contact therewith, and the heating suction port is opened. The vending machine according to claim 3 or 4. Vending machine according to any of claims 1 to 4, wherein the refrigerant is HC refrigerant or CO ₂ refrigerant.

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