JP6693597B2 - Drain water treatment equipment for vending machines - Google Patents

Description

The present invention relates to a vending machine that cools and sells cold drinks such as canned drinks and PET bottled drinks, and more particularly to a heat insulating structure in which products such as canned drinks and PET bottled drinks are stored. The present invention relates to a drain water treatment device that transfers drain water generated by cooling the inside of a product storage to a predetermined evaporation site.

  A soft drink vending machine that sells products such as canned drinks and PET bottled drinks stores the products in a cold or hot state in a product storage of a main body cabinet that serves as a heat-insulating housing and stores them in an outer door. A plurality of product samples are displayed side by side in the display room, and the product selected based on the operation of the product selection button provided corresponding to the product sample is sold. This type of vending machine will be described with reference to FIG.

  As shown in FIG. 6, this vending machine is provided with a main body cabinet 10 having an open front surface, and a single-opening type outer door 20 which is supported on the front surface of the main body cabinet 1 by a hinge so as to be openable and closable. Reference numeral 1 is a heat insulating casing in which a rectangular flat plate-like heat insulating panel made of hard urethane foam is arranged on the inside of an outer box made of a steel plate, that is, on the upper wall, the left and right side walls, the back wall and the bottom wall 10a. A gutter member 100 is laid on the front surface of the bottom wall 10a. The inside of the product storage enclosed by the heat insulating panel of the main body cabinet 10 is divided into a plurality of product storage chambers 11, 12, 13 in the left-right direction by a heat insulating partition plate 30. In each of the product storage chambers 11, 12, and 13, a product storage rack 40 having a meandering product storage passage called a serpentine system in this example is installed. An inner door 50 is disposed between the outer door 20 that is openably and closably supported on the front surface of the main body cabinet 10 and the front surface of the product storage in the main body cabinet 10. In this example, the inner door 5 is the upper and lower inner doors. It is divided into a door 51 and a lower inner door 52. The lower inner door 52 is provided with a product carry-out port having a carry-out door 52a at a position facing the shooter 60 that sends out the products paid out from the product storage racks 40 of the product storage chambers 11, 12, and 13. The carry-out door 52a is pivotally supported at the upper end side and hangs down, and the product carry-out port is closed by its own weight to prevent outflow of cold air or warm air, and is pushed open by the product carried out through the shooter 60. It is formed so as to deliver the product to the product outlet 26 of the outer door 20. An upper area of the front surface of the outer door 20 is formed as a display room covered with a transparent plate for displaying a sample product, and a product selection button unit is provided on the front surface of the transparent plate. It has a product selection button provided corresponding to the displayed product sample. Further, a coin insertion slot, a bill insertion slot, a coin return slot, a return lever, a product outlet, a handle lock, etc. are provided on the front surface of the outer door 20.

  Below the shooter 60, which is the lower region of the product storage chambers 11, 12, and 13 in which the storage product rack 40 is installed and installed, a cooling unit including a heat exchanger (evaporator of a refrigerator), an internal fan, etc. (Fig. (Not shown) is installed. A lower region of the bottom wall 10a of the main body cabinet 10 is formed as a room temperature machine room 70. In the machine room 70, a condensing unit 80 and a drain evaporation device 90 of a refrigerator forming a refrigeration cycle with the cooling unit are arranged. To be done. As shown in FIG. 7, the condensing unit 80 of the refrigerator has a compressor 81 for exchanging heat with the inside air by the heat exchanger (evaporator of the refrigerator) to compress the vaporized refrigerant, and the compressed high temperature and high pressure. A condenser 82 for reliquefying the refrigerant of FIG. 1 by heat exchange with the outside air, an outside fan 83 for blowing outside air to wash the condenser 82, and the like. The compressor 81, the condenser 82, and the outside fan 83 are connected to the main body cabinet 10. It has a configuration installed on the base 10b. The drain evaporation device 90 is formed on a drain pan (not shown) made of a steel plate, which is the bottom of the plurality of product storage chambers 11, 12, 13 divided by the heat insulating partition plate 30 and is laid on the bottom 10a. The evaporation tray 91 for storing drain water collected from the drain port through the drain pipe penetrating the bottom wall 10 and the evaporation laid on the evaporation tray 91 so as to be immersed in the drain water stored in the evaporation tray 91. It is composed of the sheet 92, and the evaporation tray 91 is installed on the base 10b on the side of the condensing unit 80 of the refrigerator. In the soft drink vending machine, of the plurality of product storage chambers 11, 12, 13, the product storage chamber 11 is used as a cold-only room in which only the cooling unit is arranged, while the product storage chambers 12, 13 are Generally, a cold product and a hot product can be sold by additionally installing a heater (heater) in addition to the cooling unit and using it as a cold / hot combined room equipped with a cooling / heating unit. Further, a heat exchanger that constitutes a cooling unit is often used as an evaporator or a condenser to switch between cooling and heating.

  In the vending machine having such a configuration, the product storage rack 40 housed in the plurality of product storage chambers 11, 12, and 13 is replenished with the products by the outer door 20 and the inner door 50 (upper inside) provided on the front surface of the main body cabinet 10. This is performed by opening the door 51) and then inserting a product from the product insertion port of the product storage rack 40. When the outer door 20 and the inner door 50 (upper inner door 51) are opened when replenishing the product, The outside air enters the product storage. When the condensing unit 80 of the refrigerator is driven to cool the product stored in the product storage rack 40 by the cooling unit in the state where the outside air has entered the product storage box in this way, and when the product is kept cool, the water vapor contained in the outside air Is condensed and drain water is generated. This drain water is collected in a steel plate drain pan laid at the bottom of the product storage chambers 11, 12, and 13 and is collected from a drain port formed in the drain pan via a drain pipe to an evaporation tray 91 for evaporation. It is sucked up by the evaporation sheet 92 laid on the plate 91, evaporated from the surface of the evaporation sheet 92, and diffused to the outside. Further, the dew condensation water generated on the front surface of the inner door 50 due to the temperature difference between the inside and the outside of the product storage is relayed through the gutter member 100 attached to the front surface of the bottom wall 10a and collected in the evaporation tray 91, and then the evaporation tray. It is released from 91 to the outside.

  By the way, in recent years, in order to improve the cooling efficiency and heat retention efficiency of the product storage, as a heat insulating panel disposed inside (top wall, left and right side walls, back wall and bottom wall 10a) of a steel plate outer box in the main body cabinet 1. Insulation panels with vacuum insulation are used. In this case, it becomes difficult to form the through hole of the drain pipe for transferring the drain water in the bottom wall 10a (heat insulating panel) on which the vacuum heat insulating material is arranged. Therefore, paying attention to the fact that the drain gutter is arranged at the front end of the bottom wall 10a, instead of the drain pipe, a groove for transferring the drain water to the outside of the storage is formed in the bottom wall 10a and then the drain gutter is inserted. There is also one in which the drain water in the refrigerator is guided to the drain evaporator 90 (for example, refer to Patent Document 1). The invention disclosed in Patent Document 1 temporarily stores drain water drained from a drain port formed in a drain pan in a heat insulating panel forming a bottom wall, and directs the stored drain water toward the front. A groove for transfer is formed. In this case, the groove formed on the heat insulation panel corresponds to the drain port of the drain pan located on the inner side of the refrigerator, and the groove formed on the inner side of the refrigerator temporarily stores drain water. The groove is formed so as to have a wide width, and the groove for transferring the drain water to the front side is formed to have a narrow width and is formed so as to be gradually inclined downward toward the front side.

JP, 2014-120128, A

  In the invention disclosed in the above-mentioned Patent Document 1, since it is not necessary to form a through hole of the drain pipe which is arranged to penetrate the bottom wall in the bottom wall, a vacuum heat insulating material is used as the heat insulating material forming the bottom wall. It is excellent in that it can use the arranged heat insulation panels. However, since a flat heat insulating panel made of a hard plastic foam such as hard polyurethane is used as the heat insulating panel, it has the following problems. That is, in a single heat insulating panel made of hard plastic foam, if an attempt is made to integrally form a groove for transferring drain water to the front side by foam molding, the foam resin must be cured while being compressed, so the molding time becomes long. In addition, since it has a concave groove, it is difficult to separate the mold from the molding die, which causes a problem in yield. Therefore, a plurality of flat heat insulating panels are prepared and laminated in layers, and the drain panel formed in the drain pan temporarily stores drain water in the uppermost single panel. A narrow groove is formed to form a wide groove, and the unit panel that serves as the middle layer communicates with the through hole that is formed in the unit panel that serves as the uppermost layer, and the drain water that is temporarily stored is transferred forward. To form a groove to form a groove, and to stack the middle layer and the top layer of the single heat insulation panel on top of the bottom layer of the single heat insulation panel to make a module, and to create a space in the top layer of the heat insulation panel. The bottom of the place is closed with a flat surface of the heat insulating panel of the middle layer to form a wide groove for temporarily storing drain water discharged from the drain port formed in the drain pan, and one of the voids of the heat insulating panel of the middle layer. Top of section Is formed by the insulation layer of the uppermost layer and the insulation layer of the middle layer by connecting the bottom of the insulation panel of the middle layer with the plane of the insulation panel of the lowest layer. The drain water, which is temporarily stored in the wide groove, is configured to be forwardly transferred. Therefore, a process for modularly manufacturing a heat insulating panel that serves as a bottom wall of a product storage of an automatic vending machine is required, so that the number of processing steps is increased and the processing cost is increased.

  The present invention has been made in view of the above points, and an object thereof is to solve the problems described above and to provide a drain for a vending machine capable of transferring drain water to the front side without causing an increase in processing man-hours and costs. To provide a water treatment device.

  In order to achieve the above-mentioned object, the invention according to claim 1 is a drain water treatment apparatus for a vending machine, which transfers drain water generated by cooling the inside of a heat-insulated merchandise storage to a predetermined evaporation site. The heat insulation panel that forms the bottom wall of the storage is filled with the expanded polystyrene foam, foamed and molded, and the drain groove that transfers the drain water to the front is integrally formed. The drainage groove is covered with a water-based member, and the drainage groove has a relatively wide first groove located on the inner side of the refrigerator and a narrow width which communicates with the first groove and which gradually inclines downward toward the front. The second groove includes a second groove having a substantially V-shaped cross section, and left and right inclined wall surfaces approach each other toward the front, and the water repellent member is the first groove. of And characterized in that it comprises first groove portion corresponding to the second groove and the second groove.

  According to the invention according to claim 1 of the present invention, in the drain water treatment device of the vending machine for transferring the drain water generated by cooling the inside of the heat-insulated product storage to a predetermined evaporation site, the product storage The heat-insulating panel forming the bottom wall of the styrene foam is poured into the foamed liquid to be foam-molded, and a drain groove for transferring the drain water to the front is integrally formed. The drainage groove is covered with a relatively wide first groove located on the inner side of the refrigerator and a second narrow groove that communicates with the first groove and inclines downward as it goes forward. The second groove has a substantially V-shaped cross section, and the left and right inclined wall surfaces approach each other toward the front, and the water-repellent member is the first groove. And the second By providing the first groove portion and the second groove portion corresponding to the groove, integrally forming a drain groove for transferring drain water forward to the heat insulation panel forming the bottom wall of the product storage by foam molding. As a result, the number of processing steps can be reduced to reduce the cost, and the water-repellent member that covers the drainage groove does not impair the water resistance of the heat insulating panel.

  Further, according to the invention of claim 1, the drainage groove communicates with the relatively wide first groove located on the inner side of the inside of the refrigerator and the first groove, and the drainage groove is gradually lowered toward the front. The drain water generated in the product storage is stored in the relatively wide first groove portion of the water-repellent member and is then drained through the second groove portion by forming the second groove having the narrow width inclined to As a result, it is possible to prevent the collected drain water from overflowing.

It is a perspective view of the bottom wall (heat insulation panel) provided with the drain water treatment device of the vending machine concerning the embodiment of the present invention. It is a disassembled perspective view of the heat insulation panel of FIG. It is a perspective view of the heat insulation panel and resin sheet which form the bottom wall of FIG. The drainage groove formed in the heat insulation panel of FIG. 3 is shown, (a) is an AA sectional view of FIG. 3, (b) is a BB sectional view of FIG. The resin sheet of FIG. 3 is shown, (a) is a perspective view of a resin sheet, (b) is an enlarged view of the A section of (a). It is a door opening figure of the vending machine made into the object of the present invention. It is a top view of the machine room of the vending machine of FIG.

  Hereinafter, a drain water treatment device for a vending machine according to an embodiment of the present invention will be described in detail with reference to the drawings. Since the entire structure of the vending machine is the same as that shown in FIG. 6, redundant description will be omitted, and here, a bottom wall (insulation panel) having a drain water treatment device different from the conventional device will be described. In addition, the same components as those of the conventional device shown in FIG.

  1 and 2, reference numeral 1 denotes a heat insulating panel that constitutes a bottom wall of a main body cabinet 10 (see FIG. 6) that serves as a heat insulating casing, and is the entire area of the product storage, that is, the heat insulating partition plate 30 shown in FIG. Thus, it is composed of one rectangular styrofoam having a size that extends across the plurality of product storage chambers 11, 12, 13 in the left-right direction. The heat insulation panel 1 is formed by injecting the undiluted solution of styrofoam into a foam molding machine and foam molding. Reference numerals 21, 22, and 23 are drain pans made of steel plates divided into right and left corresponding to the plurality of product storage chambers 11, 12, and 13, and are placed on the heat insulation panel 1. Drain water recovery grooves 21a, 22a, 23a are formed in the drain pans 21, 22, 23 at positions facing the lower part of the heat exchangers (evaporators of refrigerators) installed in the product storage chambers 11, 12, 13 respectively. Has been done. Each of the recovery grooves 21a, 22a, 23a is formed in such a manner that the drainage holes 21b, 22b, 23b are gradually lowered toward the lowest position where the drainage holes 21b, 22b, 23b are provided (in the figure, the drainage port 22b of the drain pan 22 is the drain pan 22). Hidden in the flange of invisible). A heat insulating partition plate 30 (see FIG. 6) is inserted between these drain pans 21, 22 and 23. Reference numeral 24 denotes notches 1a, 1b and 1c formed in the heat insulating panel 1 and drain pans 21, 22 and 22. The drain receiving member is attached to the notches 21c, 22c, and 23c formed in 23. The drain receiving member 24 receives the drain water collected in the drain pans 21, 22 and 23 and stores the drain water, and also has a drain water passage portion 24a including a trap that prevents the inside and outside of the refrigerator from communicating with each other, and the machine room 70 ( (Refer to FIG. 6) and a refrigerant pipe portion 24b through which a refrigerant pipe that connects the condenser 82 installed in each of the product storage chambers 11, 12, and 13 (evaporator of the refrigerator) is inserted. Further, the drain water passage portion 24a is formed one step lower than the refrigerant pipe portion 24b in the drain receiving member 24, and the cutouts 1a, 1b, 1c formed in the heat insulating panel 1 have a size corresponding to the drain receiving member 24. On the other hand, since the notches 21c, 22c, 23c formed in the drain pans 21, 22, 23 are formed in a size corresponding to the refrigerant pipe portion 24b, the upper part of the drain water passage portion 24a is formed. , 22, 23.

  Now, as shown in FIG. 3, a plurality of drainage grooves 2, 2, 2 extending in the front-rear direction are formed on the upper surface of the heat insulating panel 1, and a resin sheet covering these drainage grooves 2, 2, 2 is formed. 3, 3, 3 are provided. The resin sheets 3, 3, 3 constitute the water repellent member according to claim 1. The drainage grooves 2, 2, 2 are relatively wide and located on the inner side of the refrigerator facing the drainage ports 21b, 22b, 23b provided in the recovery grooves 21a, 22a, 23a of the drain pans 21, 22, 23. It is composed of first grooves 2a, 2a, 2a and second grooves 2b, 2b, 2b having small widths which communicate with the first grooves 2a, 2a, 2a and which gradually incline downward toward the front. This heat insulation panel 1 is formed by injecting a styrene foam undiluted solution by a foam molding machine and foam molding to integrally form drainage grooves 2, 2, 2 and notches 1a, 1b, 1c. Since the plurality of drainage grooves 2, 2, 2 have the same structure, the drainage groove 2 at the right end of FIG. 3 will be described below.

  The wide first groove 2a in the drainage groove 2 is for temporarily storing drain water dropped from the drainage port 23b provided in the recovery groove 23a of the drain pan 23, has a substantially flat bottom surface, and has a front surface. It is formed so as to taper off toward. The narrow second groove 2b connected to the tip of the first groove 2a is formed in a substantially V-shaped cross section that gradually inclines downward as it goes forward. The angle (α) of the V-shaped cross section of the second groove 2b is the AA cross section and the BB cross section in FIG. 3 (a) in FIG. 4 and (b) in FIG. As shown in (), it is formed as (α1> α2), and the left and right inclined wall surfaces are formed so as to approach each other toward the front. The tip of the second groove 2b communicates with the cutout 1c of the heat insulating panel 1.

  The resin sheet 3 covering the drainage groove 2 is a polyethylene terephthalate (hereinafter referred to as PET) resin molded product, and is used to impart water resistance to the heat insulation panel 1 made of expanded polystyrene. The resin sheet 3 is formed into a shape corresponding to the shape of the drainage groove 2 by subjecting a PET sheet to vacuum forming and then trimming. That is, the resin sheet 3 starts from the wide first groove portion 3a corresponding to the first groove 2a in the drain groove 2 and the narrow second groove portion 3b corresponding to the second groove 2b in the drain groove 2. Become. The second groove portion 3b of the resin sheet 3 is formed in a V shape like the first groove 2a of the drainage groove 2 and the left and right inclined wall surfaces are formed so as to come closer to each other toward the front. There is.

  Here, the length of the second groove portion 3b of the resin sheet 3 is formed longer than the second groove 2b of the drain groove 2, and protrudes forward from the tip of the second groove 2b of the drain groove 2. There is. A drainer 3c is formed at the tip of the second groove portion 3b of the resin sheet 3 as shown in an enlarged view in FIG. The drainage 3c is larger than the inclination angle of the second groove 2b in the drainage groove 2, that is, the inclination angle of the second groove 2b in the drainage groove 2 formed so as to gradually incline downward as it goes forward. It has a tilt angle. The drain 3c at the tip of the second groove 3b of the resin sheet 3 is configured to enter the drain water passage portion 24a of the drain receiving member 24.

  In the vending machine equipped with the drain water treatment device in which the resin sheet 3 is mounted in the drainage groove 2 of the heat insulation panel 1, the drain water generated in the storage is collected in the drain pans 21, 22, 23 by the recovery grooves 21a, 22a. , 23a. The drain water collected in the collecting grooves 21a, 22a, 23a is dropped into the first groove portion 3a of the resin sheet 3 covering the drain groove 2 of the heat insulation panel 1 through the drain ports 21b, 22b, 23b and temporarily. Will be stored. Since the first groove portion 3a is formed to have a relatively wide width, the collected drain water does not overflow. The drain water stored in the first groove portion 3a is formed so that the first groove 3a is tapered, so that the drain water is guided forward by the capillary phenomenon and is discharged to the second groove portion 3b. The drain water discharged to the second groove portion 3b is transferred to the front because the second groove portion 3b is formed so as to incline downward gradually as it goes forward, and further to the left and right in the second groove portion 3b. Since the inclined wall surfaces are formed so as to approach each other toward the front, they are guided forward by the capillary phenomenon and discharged to the drain water passage portion 24a of the drain receiving member 24. In this case, since the water drain 3c is formed at the tip of the second groove 3b, the drain water discharged from the tip of the second groove 3b circulates from the tip of the second groove 3b to the back, and the heat insulating panel 1 Is discharged into the drain water passage portion 24a of the drain receiving member 24 without invading. The drain water temporarily stored in the drain water passage portion 24a of the drain receiving member 24 serves to prevent the inside and outside of the refrigerator from communicating with each other via the drain groove 2 by the trap provided in the drain water passage portion 24a. On the other hand, drain water overflowing from the drain water passage portion 24a is dripped onto the gutter member 100 attached to the front surface of the bottom wall 10a shown in FIG.

  As described above, in the drain water treatment device of the vending machine according to the present embodiment, the drain water generated by cooling the inside of the commodity storage compartment having the heat insulating structure is transferred to the predetermined evaporation site. In the drain water treatment device, the heat insulation panel 1 forming the bottom wall 10a of the product storage is foam-molded by Styrofoam, and the drain groove 2 for transferring the drain water to the front is integrally formed, and then the drain groove 2 is formed. , The drainage groove 2 is covered with a water-repellent member excluding the resin sheet 3, and the drainage groove 2 communicates with the relatively wide first groove 2a located on the inner side of the inside of the refrigerator and the first groove 2a, and forwardly. The second groove 2b has a narrow width that gradually inclines downward as it goes toward the second groove 2b. The second groove 2b has a substantially V-shaped cross section, and the left and right inclined wall surfaces are in contact with each other toward the front. The water repellent member is provided with the first groove portion 3a and the second groove portion 3b corresponding to the first groove 2a and the second groove 2b. Since the drain groove 2 for transferring the drain water toward the front can be integrally formed by foam molding on the heat insulating panel 1 forming the structure, it is possible to reduce the processing man-hours and reduce the cost, and The water-repellent resin sheet 3 to be coated has the effect of not impairing the water resistance of the heat insulating panel 1.

  In the above embodiment, the resin sheet 3 covering the drainage groove 2 formed in the heat insulation panel 1 is formed into a shape corresponding to the shape of the drainage groove by performing a trimming process on the PET sheet after vacuum forming. As described above, what is mounted on the drainage channel 2 is ABS resin as a resin sheet, and the ABS resin is vacuum-molded into the shape of the drainage channel 2 and then inserted into the foam mold of the heat insulating panel to insert the heat insulating panel 1. It can also be heat-sealed to the drainage groove 2. Further, in the above-described embodiment, the case where the resin sheet is used as the water repellent member has been described, but the water repellent member may be made of a steel sheet, and the water repellent member may be sprayed by applying or spraying a paint containing a water repellent resin component. It can also be attached and coated. Therefore, the present invention is not limited to the embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Insulation panel, 2 ... Drainage groove, 2a ... 1st groove, 2b ... 2nd groove, 3 ... Resin sheet (water repellent member), 3a ... 1st groove part, 3b ... 2nd groove part, 3c ... Drainer, 10 ... Main body cabinet, 20 ... Outer door, 21, 22, 23 ... Drain pan, 24 ... Drain receiving member, 80 ... Refrigerator condensing unit, 81 ... Compressor, 82 ... Condenser, 90 ... Drain water evaporation device, 100 ... gutter member.

Claims (1)

In a drain water treatment device of a vending machine that transfers the drain water generated by cooling the inside of the product storage with a heat insulation structure to a predetermined evaporation site, the heat insulation panel forming the bottom wall of the product storage is filled with styrene foam stock solution. The drain groove is formed integrally with the drain groove for pouring and foaming and transferring the drain water forward, and then the drain groove is covered with a water-repellent member excluding the resin sheet. It is composed of a relatively wide first groove located on the back side and a narrow second groove communicating with the first groove and gradually inclined downward toward the front, and the second groove has a cross-sectional shape. Are substantially V-shaped, and the left and right inclined wall surfaces are formed so as to approach each other toward the front, and the water-repellent member has a first groove portion corresponding to the first groove and the second groove. Second Part drain water treatment device for an automatic vending machine, characterized in that it comprises a.

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