JP2001043434A - Cold and heat reservoir, its manufacture and cooled/ warmed type automatic vending machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To utilize cold and warm, which are stored in a cold and heat reservoir by night electricity, during daytime and to improve the efficiency of cooling, heating, cool radiation and heat radiation of the cold and heat reservoir in an automatic vending machine. SOLUTION: In the rear space of a delivery chute 20 in an automatic vending machine 10, plate-like cold and heat reservoirs 30 are arranged in parallel in a width direction with gaps to store cold and warm here through the use of night electricity which is comparatively inexpensive. The reservoirs 30 are constituted by charging a cold and heat reserving agent to the inside of the hole part D of a honeycomb construction body consisting of a thin metallic plate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a regenerator and a regenerator, a method for manufacturing the regenerator, and a cooling and heating type vending machine.

[0002]

2. Description of the Related Art A vending machine for canned or bottled soft drinks and the like is provided with a plurality of rows of product racks, and blows hot or cold air from below the product racks, so that the products in the product racks are blown. Is heated or cooled.

[0003]

Here, it is assumed that the power consumption of vending machines in Japan as a whole is equal to the power generation of two nuclear power plants, and in recent years, from the viewpoint of reducing CO2 emissions, The problem is how to reduce the power consumption of vending machines.

[0004] In this case, it is also a major problem how to reduce the power consumption of the vending machine which is already installed and currently in use.

[0005] As one of means for reducing the amount of power consumed during the daytime of a vending machine, sherbet-like ice is prepared using nighttime power, and is used for daytime cooling. It is conceivable to use a cool storage device.

However, there is a problem that it is difficult to apply an automatic heating and cooling system to each vending machine and to provide a regenerator in each vending machine in terms of installation space and cost.

[0007] It is also conceivable to use an ordinary cold storage heat storage agent mainly composed of a polymer gel. However, this type of cold storage material usually contains a polymer gel stored in a resin sheet or film. Therefore, there is a problem that the heat transfer speed is slow, and it takes a long time to store and cool heat, and the efficiency of cooling and releasing heat is low.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has been made in view of the above-mentioned problems, and has a high efficiency of cold storage, heat storage and cooling, and heat radiation, a manufacturing method thereof, and these cold storage heat storage It is an object of the present invention to provide a cooling / warming type vending machine using the same.

[0009]

According to a first aspect of the present invention, a honeycomb structure made of a thin plate-like metal, and both ends in the axial direction of the honeycomb structure are closed.
The above object is achieved by a cold energy storage device characterized by being formed in a thick plate shape from two metal plates and a cold storage material stored in a hole portion of the honeycomb structure between the two metal plates. To achieve.

According to a second aspect of the present invention, a honeycomb structure made of a sheet metal and a plurality of holes intermittently selected from a plurality of holes in the honeycomb structure are provided. Two lids closing both ends in the axial direction of the portion, and a cold storage heat storage agent filled in a hole closed at both ends by these lids, and the lid in the honeycomb structure has The hole that is not closed by the cold storage heat storage element characterized in that gas flow was enabled in the axial direction,
The above object is achieved.

According to a first aspect of the present invention, there is provided a method for manufacturing a regenerative heat storage body, wherein a honeycomb structure made of a sheet metal is provided.
A metal plate is joined such that one end in the axial direction of the hole is closed, and the liquid metal regenerator before gelation is injected into the hole from the upper end opening of the hole with the joined metal plate facing down. After the regenerative heat storage agent has gelled, a second metal plate having an adhesive applied to one surface in advance is bonded and fixed to the honeycomb structure so as to close the upper end opening of the hole. The above object is achieved by a method for manufacturing a heat storage body.

According to a second aspect of the present invention, there is provided a method for manufacturing a regenerative regenerator according to a fourth aspect of the present invention, wherein a plurality of intermittently selected holes among a plurality of holes in a honeycomb structure made of a sheet metal are axially oriented. A plate-like lid is joined to the honeycomb structure in a state where one end is closed and another hole is opened, and then the lid is turned down, and the gel is placed in the hole closed at one end before gelation. Injecting a liquid cold storage material, and after the cold storage material has gelled, applying an adhesive in advance on one surface, and a plate-like shape having holes formed in portions corresponding to the other holes. The above object is achieved by a method for manufacturing a regenerative regenerator, wherein the second lid is bonded and fixed to the honeycomb structure so as to close a hole part of which one end is closed by the lid. Things.

Further, according to a first aspect of the present invention, there is provided a cooling and heating type vending machine having a product filling opening at an upper end of each row and a product discharging opening at a lower end in an outer box. A plurality of merchandise racks arranged in a plurality of rows in the width direction when viewed from the front of the outer box, and one or a plurality of adjacent merchandise racks in the plurality of rows as one set; On the lower side, a plate-shaped delivery chute, which is arranged to be inclined downward toward the front side and has a plurality of air holes formed to allow air to flow from the back side to the front side, and a delivery chute of this delivery chute. A cooling and heating device that blows one of cold air or hot air into the back space, wherein at least the back space of the set of delivery chutes into which the cold air is blown, a plate-shaped cold storage heat storage element is inserted in the width direction. Are arranged with a gap in The cold regenerator has a honeycomb structure made of a sheet metal, two metal plates closing both ends in the axial direction of the honeycomb structure, and filling a hole in the honeycomb structure between the two metal plates. The above object is attained by a cooling / heating type vending machine characterized by being formed in a thick plate shape from the obtained cold storage heat storage agent.

The gap between the plurality of regenerators may be a ventilation path through which cool air or warm air from the cooling / heating device passes to reach the air holes of the delivery chute.

According to a second aspect of the present invention, there is provided a vending machine of a cooling and heating type, wherein the outer box is provided with a product filling opening at the upper end of each row and a product discharging opening at the lower end. The product racks arranged in a plurality of rows in the width direction as viewed from the front of the outer box, and one or a plurality of adjacent ones of the plurality of rows of the product racks as one set, and the lower side of the product ejection opening in each set. A plate-shaped delivery chute, which is arranged to be inclined downward toward the front surface and has a plurality of air holes formed therein to allow air to flow from the back side to the front side, and a space on the back side of the delivery chute. A cooling and heating device that blows one of cold air or hot air into the vending machine, wherein at least a cold storage heat storage body is arranged in a space behind the delivery chute of the set to which the cold air is blown, Heat storage body is made of sheet metal A honeycomb structure, two lids for closing both ends in the axial direction of some holes intermittently selected among a plurality of holes in the honeycomb structure, and both ends are closed by these lids. And a cold storage heat storage agent filled in the hole portion, wherein the hole portion of the honeycomb structure not closed by the lid allows gas to flow in the axial direction, and the cooling and heating device The above object is likewise achieved by a cooling and warming type vending machine characterized in that a cooling air or a hot air is passed through the cooling chute to form an air passage leading to an air hole of the delivery chute.

According to the present invention, since the cold storage element is constituted by directly filling the hole of the honeycomb structure made of a thin metal plate with the cold storage agent made of a polymer gel, the cold storage medium can be cooled and stored through the thin metal sheet. Heat can come in and out quickly. Therefore, the cold storage heat storage and the cooling radiation heat radiation are performed efficiently and quickly.

In particular, in the case of a structure in which a part of the plurality of holes in the honeycomb structure is intermittently filled with a regenerative heat storage agent, the regenerative heat and the radiant heat are more quickly and efficiently discharged. Can be done

Further, in the present invention, since a plurality of the above-described cold accumulators are provided in the space behind the delivery chute while forming a gap through which cool air or hot air passes, the cold accumulator can be effectively stored and stored. The stored cold and warm heat can be efficiently released.

Further, since the space on the back surface of the delivery chute has a relatively large volume, the cold and warm heat stored therein can be made sufficient.

[0020]

Embodiments of the present invention will be described below in detail with reference to the drawings.

As shown in FIG. 1, a vending machine 10 according to an embodiment of the present invention is of a cooling and heating type, and has a height range of about 4/5 from the upper end of the front surface of an outer box 12 thereof. Is opened and can be freely opened and closed by a middle door 16. Reference numeral 14 in the figure indicates a heat insulator attached to the inner peripheral surface of the outer box 12 and the back side of the middle door 16.

In the inner space of the outer box 12, a horizontal partition plate 13 is provided at a height of about 1/5 from the bottom, and above the horizontal partition plate 13 is shown in FIGS. As seen from the front, six rows of product racks 18A-
18F is disposed so as to be freely inserted and removed in the front-rear direction.

The commodity racks 18A to 18F are hung on the ceiling 12A of the outer box 12 at the upper end surface, and have a commodity filling opening 19 formed at the upper part of the front surface toward the front surface. I have. In addition, product rack 18A ~
18F are appropriately partitioned by a heat insulating partition wall 25, and the product racks 18A to 18C, 18D and 18E, 1
The left storage 11A, the middle storage 11B, and the right storage 11C that store 8F, respectively.

In the figure, there are four product filling openings 19 in the vertical direction for each of the product racks 18A to 18F. As shown in FIG.
This is because each of 8A to 18F includes four vertically long product storage channels 17 in the depth direction. There are also three-row or five-row vending machines.

The lower end of each product storage channel 17 in each of the product racks 18A to 18F is formed as a product discharging opening 21A below the product discharging device 21.
It faces downward to the delivery chute 20 for discharging the product, which is arranged below A-18F. The delivery chute 20 is disposed so as to be freely inserted into and removed from the horizontal partition plate 13 and to be inclined forward and downward in a mounted state.

The space 13 below the horizontal partition plate 13
A is provided with a refrigerator compressor 22A and a condenser 22B which constitute a part of the cooling and heating device 22.

Reference numerals 52A, 52B and 52C in FIGS.
Is a convection fan for blowing air cooled or heated by the cooling and heating device 22 into a back space 20B below (on the back side of) the delivery chute 20 in the left warehouse 11A, the middle warehouse 11B, and the right warehouse 11C. Is shown.

As shown in FIG. 3, the left warehouse 11A,
The convection fan 52A in the middle storage 11B and the right storage 11C,
Evaporators 54A, 54B, 54C of the refrigerator in the cooling and heating device 22 are arranged on the suction side of 52B, 53C, respectively. The convection fans 52A, 52B, 5
The air blown by the 3C is supplied to the lower side of the product racks 18A to 18F through a number of air holes 20A formed in the delivery chute 20 of each warehouse. The heater 22D for heating is, for example, a sheathed heater, and as shown in FIG. 3, evaporators 54B and 54C corresponding to the middle storage 11B and the right storage 11C, and the convection fan 52.
B, 52C.

In the back space 20B, as shown in an enlarged view in FIG.
0 are arranged in parallel with a gap in the width direction of the outer box 12.

The plurality of regenerators 30 are detachably mounted on the horizontal partition plate 13 in the back space 20B, and
These plate-shaped regenerators 30 are supported in the longitudinal direction by a support member 31 which can be placed in parallel with a gap 32 in the width direction, and the gaps 32 between the regenerators 30 are air holes of the delivery chute 20. It is configured to be a ventilation path reaching 20A.

The support member 31 is provided with five support channels 31B having a U-shaped cross section on the bottom surface 31A in parallel, so that the regenerator 30 is maintained in the vertical direction and the gap 32 is maintained. Parallel support.

A rising portion 31 is provided at the front and rear ends of the bottom surface 31A.
C, 31D are provided, and an opening 31E is formed in the rear rising portion 31D so that air flows from the convection fans 52A, 52B, 52C can flow in.

As shown in the enlarged view of FIG. 5, these regenerators 30 are formed of a honeycomb structure 3 made of a thin metal plate.
0A, two metal plates 30B and 30C closing both ends in the axial direction of the honeycomb structure 30A, and a hole 30D in the honeycomb structure 30A between the two metal plates 30B and 30C was filled. The heat storage agent 34 is formed in a thick plate shape.

The regenerative heat storage agent 34 is mainly made of a polymer gel made of a superabsorbent polymer in a state of adsorbing water or another liquid. The honeycomb structure 30
A and metal plates 30B and 30C are metals having high thermal conductivity,
For example, it is formed from aluminum.

The superabsorbent polymer is composed of starch, cellulose, other polysaccharides or proteins in the case of natural polymers, and polyvinyl alcohol, acrylic, or the like in the case of synthetic polymers. Polymer gel, composed of a polyether-based polymer, a condensation-based polymer, etc.
The polymer network made of the above-mentioned polymer is in a state of being wrapped and trapped in a liquid such as water.

Reference numeral 24 in FIG. 2 denotes an openable and closable front door covering the entire front surface of the outer box 12 including the inner door 16, and reference numeral 25 in FIG. 1 denotes a position between the product racks 18C and 18D, and 1
A heat insulating partition wall 26 provided between 8D and 18E indicates an opening formed in the middle door 16 and guiding the product dropped on the delivery chute 20 to the front.

Reference numeral 38 in FIG. 6 denotes a day / night power switching device. The day / night power switching device 38 switches the power supplied to the power supply 39 of the vending machine 10 to nighttime power, which is low in cost at night, and to daytime power, which is normal cost in daytime. .

FIG. 6 is a circuit diagram showing a control system of the vending machine 10. The control device 40 includes a left storage 11A, a middle storage 11
B, a cooling or heating operation is performed based on the detected temperatures of the temperature sensors 42A to 42C provided in the vicinity of the commodity ejection opening 21A at the lower end of the commodity storage channel 17 corresponding to each right storage 11C.

Normally, the cooling and heating device 22 is provided with one cooling compressor 22A for the entire vending machine 10, and the refrigerant is supplied from the condenser 22B and the switching valve 23A.
Through 23C, the corresponding evaporators 54A to 54C
Are selectively supplied. Further, the convection fans 52A, 52B, 52C are always operated to circulate cool air or warm air.

More specifically, in the cooling mode, when the detected temperature of any of the temperature sensors 42A to 42C becomes equal to or higher than a predetermined value, the compressor 22A is turned on and any of the corresponding evaporators 54A, 54B, 54C is turned on. The refrigerant is supplied, and the compressor 22A supplies the refrigerant to the evaporator 22C for a time period corresponding to the characteristics of the vending machine 10 according to the detection signal of the temperature sensor.
In general, the continuation of 2A, the defrosting time, and the like are controlled by electronic control of the refrigerant in each storage via an electromagnetic valve.

As shown in FIG. 7, the heat insulator 14 includes a heat insulating material layer 14A made of a material having a low thermal conductivity, for example, a material such as urethane, polypropylene, polyethylene or polystyrene, or a closed foam resin. Insulation layer 14A
A heat-insulating coating 14B, 14C mainly composed of hollow ceramic spheres formed on both sides of the surface, and a reflective layer 14D having infrared reflectivity formed over one of the heat-insulating coatings 14B;
And the reflective layer 14 </ b> D side is arranged toward the internal space of the outer box 12.

The heat-insulating coatings 14B and 14C are made of a hollow ceramic paint sintered on a latex substrate, for example, commercially available under the name of Temp Coat (trademark), and have a thickness of 0 mm. .38 mm.

The reflection layer 14D is an aluminum thin film, and is formed by vapor deposition or bonding on the outside of the heat insulating coating 14C.

Next, the operation of the vending machine 10 will be described.

Such a vending machine 10 usually has, for example, product racks 18A to 18C shown in FIGS.
The space between 8D and between 18D and 18E is shut off by the heat insulating partition 25, and the left storage 11A for storing the product racks 18A to 18C is always in the cooling mode, and the right storage 11C and 18D for storing 18E and 18F are being stored. The storage 11B is in a heating / cooling switching mode.

Since the electric power to the vending machine 10 is supplied through the day / night electric power switching device 38, the night electric power operation is performed at low cost at night.

At this time, in each of the merchandise racks in the cooling mode and the heating mode, the regenerators 30 are provided respectively, so that not only the commodities 36 in the merchandise storage channel 17 but also these regenerators are stored. Must also be cooled or heated, and the load on the corresponding cooling and heating device 22 increases.

However, as described above, low-cost nighttime electricity is used at night and the sales volume of the product is small, so that the product and the cold storage during the nighttime period, for example, 8 hours from 10 pm to 6 am The heat storage body can be sufficiently cooled or heated to a predetermined temperature. In particular, the cold storage heat storage body 30 is configured such that the cold storage heat storage agent 34 has a honeycomb structure 30A.
Is directly filled into the hole 30D, so that cold and warm heat quickly enter and exit through the honeycomb structure 30A and the metal plates 30B and 30C. It can be cooled and heated.

In the normal operation of the vending machine 10, since the air in each compartment is constantly circulated by the convection fans 52A, 52B and 52C, the cold heat and the heat stored in the cold accumulator 30 are gradually released. Then, the commodity in the commodity rack in the cooling mode is cooled, and the commodity in the commodity rack in the heating mode is heated.

When the release of the cold and warm heat from the cold storage unit 30 is completed, the cooling or heating of the product 36 does not proceed even if the convection fans 52A, 52B and 52C are operated. In the cooling mode of the product rack, when the output value of any one of the temperature sensors 42A to 42C for indirectly detecting the temperature of the product storage channel 17 or the product 36 stored in the product storage channel 17 becomes a predetermined value or more, the compressor 22
A is driven. Similarly, in the product rack in the heating mode, when the temperature of the product storage channel 17 or the product falls below a certain value, the corresponding heater 22D is turned on.

If the heat capacity of the cold storage heat storage unit 30 is set so that the cold and hot heat stored during the nighttime power operation remains slightly until the end of the daytime power operation or becomes zero during daytime power operation, High-cost operation of the vending machine 10 by electric power can be omitted.

Here, as described above, since the thermal conductivity of the cold storage heat storage unit 30 is high, there is no waste such as ending the daytime power operation with a lot of cold or warm heat left inside.

Even if the heat capacity of the cool storage / heat storage unit 30 is insufficient or the temperature environment during the daytime power operation is severe, and the cooling or heat radiation is completed before the nighttime power time, the daytime power operation time is reduced. It can be significantly reduced.

Further, the heat insulator 14 is provided with a product rack 18.
When the A to 18F sides are in the heating mode, heat rays (infrared rays) generated inside are reflected by the reflective layer 14D, so that the amount of heat transmitted to the heat insulating material layer 14A via the heat insulating coating 14C is small.

Also, as described above, 70% or more of the heat rays that have reached the heat insulating coating 14C are reflected by the spherical ceramics contained in the heat insulating coating 14C, and most of the absorbed energy is again emitted by heat radiation. Returning to the internal space 12A, only about 5% of the heat reaches the heat insulating material layer 14A. The heat insulating material layer 14A is made of, for example, urethane foam and has a very small heat transfer coefficient, so that the amount of heat leaking to the outside is further reduced.

Further, when the commodity racks 18A to 18F are in the cooling mode, heat enters from the outer box 12, but this is mostly blocked by the heat insulating material layer 14, and the heat insulating coating 1
In 4B, as described above, most of the incident heat is reflected, and most of the absorbed heat is radiated again as a heat ray, so that the amount of heat reaching the internal space 12A is extremely small.

According to the experiment conducted by the present inventor, the vending machine having the maximum power consumption of the refrigerator of about 300 W / H is set in the cooling mode with all the merchandise racks, and the regenerator 30 is provided below the delivery chute 20. In this case, after the cold storage for 8 hours by the night power operation on a hot summer day, the operation of the cooling and heating device 22 was unnecessary until one hour before the start of the night power operation. or,
On summer day, there was no excess or shortage in the residual heat of the cold storage heat storage unit 30 at the end of daytime operation.

Further, in the vending machine 10 provided with the heat insulator 14 as described above, the power consumption in the state where the cold storage heat storage is not provided is compared with that before the heat insulator is installed, and the product rack 1 is used.
When all of 8A to 18F are in the cooling mode, about 20% can be reduced, and when all of them are in the heating mode, about 30% can be reduced.

Therefore, the heat insulator 14 is installed and the cold storage
In the case of the vending machine 10 provided with a heat storage unit, the amount of power consumption hardly changes as compared with the case where only the heat insulator 14 is used, but since most of the power consumption is covered by nighttime power, the operating cost is reduced. It could be significantly reduced.

In the above embodiment, the regenerative heat storage unit 30 is composed of a honeycomb structure 30A and two metal plates 30 closing both axial ends of the honeycomb structure 30A.
B and 30C, and the cold storage heat storage agent 34 filled in the hole 30D of the honeycomb structure 30A between the two metal plates 30B and 30C are formed in a thick plate shape.
The present invention is not limited to this, as long as the thermal conductivity is increased by using a honeycomb structure and filling it with a cold storage agent.

For example, a structure such as a regenerator 44 according to a second embodiment of the present invention shown in FIG. 8 may be used.

The regenerative heat storage body 44 is structured so as to be fitted into the entire back side space 20B of the delivery chute 20, and a part of a hole in the honeycomb structure serves as an air passage.

More specifically, the regenerative heat storage unit 44 includes a honeycomb structure 44A made of a thin plate-like metal and a plurality of holes 45A intermittently selected from a plurality of holes in the honeycomb structure 44A. Two lids 44B and 44C closing both ends in the axial direction, and a cold storage and heat storage agent 48 filled in a hole 45A closed at both ends by the lids 44B and 44C. A hole 45 not closed by the lid 44B in the honeycomb structure 45B.
B is a ventilation passage through which gas can flow in the axial direction.

The one cover 44B is obliquely disposed substantially parallel to the rear surface of the delivery chute 20 at a position close to the rear surface of the delivery chute 20, and the other cover 44C is provided with convection fans 52A to 52C.
The vertical plane is substantially perpendicular to the rotation axis of 52C. In each of them, a through hole 47 having a position and shape overlapping with the hole 45B serving as the ventilation path is formed.

Therefore, when the cold storage heat storage body 44 is disposed in the back space 20B of the delivery chute 20, the air flow formed by the convection fans 52A to 52C is filled with the cold storage heat storage agent 48 in the honeycomb structure 44A. Delivery chute 20 through the hole 45B which is not
And flows out from here through the air holes 20A in the direction of the product racks 18A to 18F.

At this time, the thin honeycomb structure 44A
The heat exchange is performed between the cold storage heat storage agent 48 in the hole 45A and the air passing through the hole 45B through the hole, so that the cold and the heat can be moved in and out more quickly than in the case of the cold storage and heat storage 30. Yes, it is possible to efficiently cool, heat or cool or radiate heat.

In the structure, the regenerator 44 has a simple structure, is easy to handle, and has a low manufacturing cost.

Next, a method of manufacturing the cold storage heat storage units 30 and 44 will be described.

First, in the case of the cold storage heat storage unit 30, FIG.
As shown in FIG. 1, one metal plate 30 is formed in the honeycomb structure 30A so as to close one axial end of the hole 30D.
B, with the joined metal plate 30B facing down, the liquid regenerative heat storage agent 34 before gelation is injected into the hole 30D from the upper end opening of the hole 30D into the hole 30D by, for example, a syringe 60. After the heat storage agent 34 gelled, as shown in FIG. 9B, the adhesive 31 was applied to one surface in advance.
The cold metal heat storage unit 30 is completed by bonding and fixing the third metal plate 30C to the honeycomb structure 30A so as to close the upper end opening of the hole 30D.

Further, in the case of the cold storage heat storage body 44, FIG.
As shown in (A), a part of an end face intermittently selected from among a plurality of holes in a honeycomb structure 44A in which an end face is previously cut vertically and obliquely parallel to the delivery shoe 20 with respect to the axis of the hole. A plate-like lid 4 is formed in the honeycomb structure 44A in a state where one end (vertical end surface side) of the hole 45A in the axial direction is closed and the other hole 45B is opened by the through hole 47.
4B, and then, with the lid 44C facing down, a liquid cold storage agent 48 before gelation is injected into the hole 45A having one end closed, and after the cold storage agent 48 has gelled. As shown in FIG. 10B, the adhesive 3 is applied to one surface in advance.
1 and a second lid 44C having a through hole 47 formed at a portion corresponding to the other hole 45B so as to close a hole 45A one end of which is closed by the lid 44C. Then, it is completed by bonding and fixing to the honeycomb structure 44A.

The regenerative heat storage unit 44 includes a storage unit 44B,
Although the overall rigidity is enhanced while closing the hole 45A by 44C, the present invention is not limited to this, and each hole 45A may be closed separately by, for example, a plug. However, when the rigidity of the cold storage heat storage body 44 becomes insufficient, other reinforcing means, for example, means for surrounding the outer periphery with a plate-like body is required.

In the above embodiment, the heat insulator 14 is composed of a heat insulating material layer 14A having heat insulating coatings 14B and 14C applied on both sides and a reflective layer 14D laminated on the inner space 12A side. However, in this case, a water-repellent material layer may be laminated so as to cover the reflective layer 14B, or a light-transmitting resin film may be laminated.

As a material of the water-repellent material layer, a fluororesin paint is preferable. In particular, a super water-repellent material called HIREC (trademark) mainly containing fluororesin fine particles and fluorine-based varnish is most suitable.

When the merchandise racks 18A to 18F are in the cooling mode, the water repellent material layer or the resin film is
D to prevent dew condensation from occurring,
When D is made of a metal such as an aluminum film, for example, it prevents the heat that has entered from the outside from being diffused through the reflective layer 14D and radiated to the internal space 12A.

When such a water-repellent material layer or resin film was provided, the power consumption of the vending machine 10 could be further reduced, especially in the cooling mode.

The heat insulator 14 is provided with a heat insulating coating 1 on both sides.
Although one heat insulating material layer 14A coated with 4B and 14C is provided, this may be a multi-layer as long as there is room.

The vending machine 10 is controlled such that the convection fans 52A to 52C are constantly operated and the compressor 22A is driven by the temperature detected by the temperature sensor 42. However, the present invention is not limited to this. Instead, another control method may be used.

For example, after any one of the temperature sensors 42A to 42C reaches a predetermined temperature, one of the corresponding convection fans 52A to 52C is driven. Cooling and heating device 22
When the condition of the operation is necessary, the operation may be started. That is, when the temperature does not drop to a predetermined value even when the convection fan is driven for a certain time or more in the cooling mode product rack, or when the temperature does not become higher than the certain value within the predetermined time in the heating mode product rack. Is set so that the cooling and heating device 22 is driven.

Accordingly, when the state in which the cooling or heating of the product 36 does not progress continues for a certain period of time, for example, 10 minutes, the cooling and heating device 22 is operated for the first time, and the cooling or heating is performed by the normal operation. become.

[0080]

As described above, the present invention is constructed as described above, so that, regardless of whether the commodity rack is in the cooling mode or the heating mode, the electric power is stored and stored in the daytime by using the nighttime electric power. The present invention has an excellent effect that power consumption can be suppressed, the operating cost can be greatly reduced, and cooling, heating, cooling, and heat radiation of the regenerator can be quickly performed without waste.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a vending machine according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a delivery chute pulled out state in the vending machine.

FIG. 3 is a schematic side sectional view showing a product storage channel in a vending machine.

FIG. 4 is a perspective view showing a delivery chute and a cold storage unit on the back side thereof.

FIG. 5 is an enlarged sectional view showing the cold storage element

FIG. 6 is a block diagram showing a power control system of the vending machine.

FIG. 7 is an enlarged sectional view showing an outer box of the vending machine and a heat insulator to be applied thereto;

FIG. 8 is a perspective view showing an example of another embodiment of the cold storage heat storage unit installed in the vending machine.

FIG. 9 is a perspective view showing a manufacturing process of the cold storage element.

FIG. 10 is a perspective view showing a manufacturing process of another cold storage element.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Vending machine 12 ... Outer box 14 ... Insulation body 16 ... Middle door 17 ... Product storage channel 18A-18F ... Product rack 19 ... Product filling opening 20 ... Delivery chute 20A ... Air hole 20B ... Backside space 21 ... Product throwing Outgoing device 21A ... Commodity discharging opening 22 ... Cooling / heating device 23 ... Gap 24 ... Front door 25 ... Heat insulating partition wall 30, 44 ... Cold storage heat storage body 30A, 44A ... Honeycomb structure 30B, 30C ... Metal plate 30D, 45A , 45B ... hole 31 ... adhesive 32 ... gap 34, 48 ... cold and heat storage agent 38 ... day and night power switching device 40 ... control device 42A, 42B, 42C ... temperature sensor 44B, 44C ... lid 52A, 52B, 52C ... convection fan

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F25D 16/00 F25D 16/00

Claims (7)

[Claims] 1. A honeycomb structure made of a sheet metal, two metal plates closing both ends in the axial direction of the honeycomb structure, and a hole filled in the honeycomb structure between the two metal plates. A cold storage heat storage material, wherein the cold storage heat storage material is formed in a thick plate shape. 2. A honeycomb structure made of a sheet metal, and two lids for closing both axial ends of a plurality of holes intermittently selected from a plurality of holes in the honeycomb structure. And a heat storage / storage agent filled in holes closed at both ends by these lids, and the holes in the honeycomb structure not closed by the lid allow gas to flow in the axial direction. A cold storage heat storage element characterized by the following. 3. A metal plate is joined to a honeycomb structure made of a sheet metal so as to close one axial end of a hole thereof.
With the joined metal plate facing down, a liquid cold storage material before gelation is poured into the hole from the upper end opening of the hole, and after the cold storage material has gelled, an adhesive is previously applied to one surface. A method for manufacturing a cold storage element, comprising: bonding and fixing a second metal plate coated with a honeycomb structure to a honeycomb structure so as to close an upper end opening of the hole. 4. A honeycomb structure having a plurality of holes intermittently selected from a plurality of holes in a honeycomb structure made of a sheet metal in a state where one end in an axial direction is closed and another hole is opened. A liquid-like heat storage material before gelation is injected into the hole with one end closed, and the heat storage material is gelled. After that, an adhesive is applied to one surface in advance, and a plate-shaped second lid having a hole formed in a portion corresponding to the other hole is closed at one end by the lid. A method for manufacturing a cold storage element, wherein the hole is closed and fixed to the honeycomb structure. 5. A product rack having a product filling opening at an upper end of each row and a product discharging opening at a lower end inside the outer box, the product racks being arranged in a plurality of rows in the width direction as viewed from the front of the outer box. , One or a plurality of adjacent product racks in a plurality of rows as one set,
A plurality of air holes are formed below the product-projecting opening of each set, and are arranged to be inclined downward toward the front surface and allow air to flow from the back side to the front side. In a vending machine having a plate-shaped delivery chute and a cooling and heating device that blows one of cold air or hot air into a space behind the delivery chute, at least a back space of a set of delivery chutes into which cold air is blown. To
A plurality of plate-shaped regenerators are arranged at intervals in the width direction, and the regenerators are composed of a honeycomb structure made of a thin plate-like metal, and two metal plates closing both axial ends of the honeycomb structure. And a cold storage heat storage agent filled in a hole in the honeycomb structure between the two metal plates in a thick plate shape. 6. A gap between the plurality of regenerators according to claim 5, wherein the gap between the plurality of regenerators is a ventilation path through which cool air or warm air from the cooling and heating device passes to reach an air hole of the delivery chute. A cooling and heating type vending machine characterized by the above-mentioned. 7. A merchandise rack having a product filling opening at an upper end of each row and a merchandise discharging opening at a lower end inside the outer box, the merchandise racks being arranged in a plurality of rows in the width direction as viewed from the front of the outer box. , One or a plurality of adjacent product racks in a plurality of rows as one set,
A plurality of air holes are formed below the product-projecting opening of each set, and are arranged to be inclined downward toward the front surface and allow air to flow from the back side to the front side. In a vending machine having a plate-shaped delivery chute and a cooling and heating device that blows one of cold air or hot air into a space behind the delivery chute, at least a back space of a set of delivery chutes into which cold air is blown. To
A cold storage heat storage element is arranged, and the cold storage heat storage element has a honeycomb structure made of a sheet metal and an axial direction of a part of holes intermittently selected among a plurality of holes in the honeycomb structure. Two lids closing both ends, a cold storage heat storage agent filled in a hole closed at both ends by these lids,
The hole in the honeycomb structure, which is not closed by the lid, allows gas to flow in the axial direction, and cool or warm air from the cooling and heating device passes therethrough, A cooling and warming type vending machine characterized by a ventilation path leading to an air hole of the delivery chute.