JP6596825B2 - Vending machine drain water treatment equipment - Google Patents

Description

  The present invention relates to a vending machine that cools products such as canned beverages and plastic bottled beverages and sells them as cold products, and in particular, has an insulating structure in which products such as canned beverages and plastic bottled beverages are stored. The present invention relates to a drain water treatment apparatus that transfers drain water generated by cooling the inside of a product storage to a predetermined evaporation site.

  Soft drink vending machines that sell products such as canned beverages and plastic bottled beverages store the products in a cold and hot state in the product cabinet of the main body cabinet, which serves as a heat-insulating housing, and the outer door A plurality of product samples are displayed side by side in the display room, and a product selected based on an operation of a 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, the vending machine includes a main body cabinet 10 having an open front surface, and a single-open outer door 20 that is supported on the front surface of the main body cabinet 1 by a hinge so as to be opened and closed. 1 is configured as a heat-insulating housing by disposing rectangular flat plate heat insulation panels made of rigid urethane foam on the inner side of the outer box made of steel plate, that is, on the upper wall, left and right side walls, back wall and bottom wall 10a. In addition, a gutter member 100 is laid on the front surface of the bottom wall 10a. The interior of the product storage box surrounded by the heat insulation panels of the main body cabinet 10 is partitioned 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 stored and installed. An inner door 50 is disposed between the outer door 20 supported on the front surface of the main body cabinet 10 so as to be openable and closable and the front surface of the product storage in the main body cabinet 10. It is divided into a door 51 and a lower inner door 52. The lower inner door 52 is provided with a product outlet having a delivery door 52a at a position facing the shooter 60 that sends out products delivered from the product storage racks 40 of the product storage chambers 11, 12, and 13. The carry-out door 52a is pivotally supported by the upper end inlet and hangs down, and closes the product carry-out port 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, The product is formed so as to be delivered to the product outlet 26 of the outer door 20. The upper area of the front surface of the outer door 20 is formed as a display room covered with a transparent plate for displaying product samples, 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 and the like are provided on the front surface of the outer door 20.

  In the lower part of the shooter 60, which is the lower area of the product storage chambers 11, 12, and 13 in which the stored product rack 40 is stored and installed, a cooling unit (FIG. 5) comprising a heat exchanger (refrigerator evaporator), an internal fan, and the like. Not shown) is installed. A lower region of the bottom wall 10a in the main body cabinet 10 is formed as a normal temperature machine room 70, in which a cooling unit and a condensing unit 80 of a refrigerator constituting a refrigeration cycle and a drain evaporator 90 are arranged. Is done. As shown in FIG. 7, the condensing unit 80 of the refrigerator includes a compressor 81 that compresses the refrigerant vaporized by heat exchange with the internal air by the heat exchanger (an evaporator of the refrigerator), a compressed high-temperature and high-pressure A condenser 82 for re-liquefying the refrigerant by heat exchange with outside air, an outside fan 83 for taking outside air and blowing air so as to wash away the condenser 82, and the compressor 81, condenser 82, and outside fan 83 are connected to the main body cabinet 10. It becomes the structure installed on the base 10b. The drain evaporator 90 is formed in a steel plate drain pan (not shown) that is laid on the bottom 10a at the bottom of the plurality of product storage chambers 11, 12, and 13 partitioned by the heat insulating partition plate 30. The evaporating dish 91 for storing drain water collected through a drain pipe penetrating the bottom wall 10 from the drain outlet, and the evaporation laid on the evaporating dish 91 so as to be immersed in the drain water stored in the evaporating dish 91 It consists of a sheet 92, and the evaporating dish 91 is installed on the base 10b and on the side of the condensing unit 80 of the refrigerator. In the soft drink vending machine, among the plurality of product storage rooms 11, 12, and 13, the product storage room 11 is used as a cold dedicated room in which only the cooling unit is disposed, while the product storage rooms 12 and 13 are Generally, a cold product and a hot product can be sold by using an additional heater (heater) in addition to the cooling unit and using it as a cold / hot combined room equipped with a cooling / heating unit. In addition, many cooling / heating switches are used by using a heat exchanger constituting the cooling unit as an evaporator or a condenser.

  In the vending machine having such a configuration, the replenishment of products to the product storage racks 40 accommodated in the plurality of product storage rooms 11, 12, 13 is performed by the outer door 20 and the inner door 50 (upper and lower inner) provided on the front surface of the main body cabinet 10. When the door 51) is opened and the product is inserted from the product insertion port of the product storage rack 40, the outer door 20 and the inner door 50 (upper inner door 51) are opened when the product is replenished. Outside air enters the product storage. In this way, the condensing unit 80 of the refrigerator is driven in a state where the outside air has entered the product storage, and the product stored in the product storage rack 40 is cooled by the cooling unit, and the water vapor contained in the outside air when kept cool. Condensates and drain water is generated. The 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 in an evaporation tray 91 through a drain pipe from a drain outlet formed in the drain pan. It is sucked up by the evaporating sheet 92 laid on the plate 91, evaporated from the surface of the evaporating sheet 92 and diffused to the outside. Further, the condensed water generated on the front surface of the inner door 50 due to the temperature difference between the inside and outside of the commodity storage is relayed to the evaporating dish 91 via the eaves member 100 attached to the front surface of the bottom wall 10a, and then the evaporating dish. 91 is dissipated to the outside.

  By the way, in recent years, as a heat insulation panel disposed on the inner side (upper wall, left and right side walls, back wall, and bottom wall 10a) of the steel plate outer casing in the main body cabinet 1 in order to improve the cooling efficiency and heat retention efficiency of the product storage. Insulation panels with vacuum insulation are used. In this case, it becomes difficult to form a through hole of a drain pipe for transferring drain water to the bottom wall 10a (heat insulating panel) provided with the vacuum heat insulating material. Therefore, paying attention to the fact that a drainage basin is disposed at the front end of the bottom wall 10a, a groove for transferring drain water to the outside of the bottom wall 10a is formed on the bottom wall 10a in place of the drain pipe, and then the drainage basin is interposed. There is also one in which drain water in the refrigerator is guided to the drain evaporator 90 (for example, see Patent Document 1). In the invention disclosed in Patent Document 1, drain water drained from a drain port formed in a drain pan is temporarily stored in a heat insulating panel constituting a bottom wall and the stored drain water is directed forward. A groove to be transferred is formed. In this case, the groove formed in the heat insulating panel is compared so that the groove provided on the back side in the store corresponding to the drain outlet of the drain pan on the back side in the store temporarily stores drain water. The groove for forming the drain water forward is formed with a narrow width and is formed so as to be gradually inclined downward toward the front.

JP 2014-120128 A

In the invention disclosed in Patent Document 1, it is not necessary to form a through hole of a drain pipe disposed through the bottom wall in the bottom wall. Therefore, a vacuum heat insulating material is used as a heat insulating material for forming the bottom wall. It is excellent in that a heat insulating panel arranged can be adopted. However, since the flat heat insulation panel which consists of hard plastic foams, such as hard polyurethane, is used as a heat insulation panel, it has the following problems. That is, in the case of a single heat insulating panel made of hard plastic foam, if the groove for transferring the drain water forward is integrally formed by foam molding, the foamed resin must be cured while being compressed, so the molding time becomes long. In addition, since it has a concave groove, there is a problem in terms of yield because the mold separation from the mold is poor. For this reason, a plurality of flat heat insulation panels are prepared and stacked in a layered manner, and drain water drained from a drain port formed in the drain pan is temporarily stored in a single panel which is the uppermost layer. Narrow width that forms a space that becomes a wide groove, communicates with the through hole formed in the single unit panel that is the uppermost layer, and forwards the temporarily stored drain water to the single unit panel that is the middle layer A space for forming a groove is formed, and a single thermal insulation panel for the middle layer and the uppermost layer are laminated on the single thermal insulation panel for the lowermost layer to form a module. The bottom of the plant is closed with the plane of the heat insulation panel of the intermediate layer to form a wide groove for temporarily storing drain water drained from the drain port formed in the drain pan, and one of the voids of the heat insulation panel of the intermediate layer Department at the top Some of the cavity of the insulating panel and communicates, to close the bottom of the cavity of the insulating panels of the intermediate layer in the plane of the insulation panels of the bottom layer, is formed in the insulating panels of the uppermost layer and the intermediate layer and has a drain water temporarily stored in the groove of the wide is made as the groove for transferring forward. Therefore, since the process of modularly producing the heat insulation panel which becomes the bottom wall of the commodity storage of the vending machine is required, there is a problem that the processing man-hour is increased and the processing cost is increased.

  The present invention has been made in view of the above points, and its object is to solve the above-mentioned problems, and to drain a vending machine capable of transporting drain water forward without causing an increase in processing man-hours and costs. It is to provide a water treatment device.

In order to achieve the above object, the invention according to claim 1 is directed to a drain water treatment apparatus of a vending machine that transfers drain water generated by cooling the inside of a product storage with a heat insulating structure to a predetermined evaporation site. A heat insulating panel forming the bottom wall of the storage is molded by injecting a polystyrene foam stock solution and foamed, and a drainage groove for transferring drain water forward is integrally formed, and the drainage groove is formed by a water-repellent resin sheet. The drainage groove is a relatively wide first groove located on the inner side of the interior and a second narrow groove that communicates with the first groove and is gradually inclined downward as it goes forward. The second groove has a substantially V-shaped cross section and is formed so that the left and right inclined wall surfaces approach each other as it goes forward, and the water-repellent resin sheet is the first groove. And Characterized in that it comprises a first groove portion and the second groove corresponding to the second groove.

According to the first aspect of the present invention, in the drain water treatment apparatus of a vending machine that transfers drain water generated by cooling the inside of the product storage with a heat insulating structure to a predetermined evaporation site, the product storage Insulating panels that form the bottom wall of the resin are foamed by injecting a stock solution of foamed polystyrene, and drainage grooves that transfer drain water forward are integrally formed, and then the drainage grooves are covered with a water-repellent resin sheet. The drainage groove comprises a relatively wide first groove located on the inner side of the interior and a narrow second groove that communicates with the first groove and gradually inclines downward toward the front. The second groove has a substantially V-shaped cross-section and is formed so that the left and right inclined wall surfaces approach each other as it goes forward, and the water-repellent resin sheet includes the first groove and the first groove. In the groove of 2 By providing the corresponding first groove portion and second groove portion, it is possible to integrally form the drainage groove for transferring the drain water forward to the heat insulating panel forming the bottom wall of the product storage by foam molding. Therefore, the number of processing steps can be reduced and the cost can be reduced, and the water resistance of the heat insulation panel is not impaired by the water-impermeable resin sheet covering the drainage groove.

According to the invention of claim 1 of the present invention, the drainage groove communicates with the relatively wide first groove located on the inner side of the interior and the first groove, and gradually lowers toward the front. The drain water generated in the product storage is stored in the relatively wide first groove portion of the water- repellent resin sheet , and is then passed through the second groove portion. It is possible to prevent the drain water collected by draining from overflowing.

According to the first aspect of the present invention, the cross-sectional shape of the second groove constituting the drainage groove is formed in a substantially V shape, and the left and right inclined wall surfaces approach each other as they move forward. By forming the drain water, it is possible to guide the drain water forward by capillarity, and it becomes possible to reduce the inclination angle of the second groove which gradually inclines downward toward the front, so that it is insulated from the drain groove. The reduction in the volume of the panel can be minimized.

It is a perspective view of the bottom wall (heat insulation panel) provided with the drain water treatment apparatus of the vending machine concerning embodiment of this 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. 3 shows drain grooves formed in the heat insulating panel of FIG. 3, wherein (a) is a cross-sectional view taken along the line AA in FIG. 3, and (b) is a cross-sectional view taken along the line BB in 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 which this invention makes object. It is a top view of the machine room of the vending machine of FIG.

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

  1 and 2, reference numeral 1 denotes a heat insulating panel constituting a bottom wall of a main body cabinet 10 (see FIG. 6) serving as a heat insulating housing. The heat insulating partition plate 30 shown in FIG. Therefore, it is made of a single rectangular foamed polystyrene having a size straddling a plurality of product storage chambers 11, 12, 13 in the left-right direction. This heat insulation panel 1 is formed by injecting a foamed polystyrene stock solution into a foam molding machine and performing foam molding. 21, 22, and 23 are steel plate drain pans divided into left and right corresponding to the plurality of product storage chambers 11, 12, and 13, and are placed on the heat insulating panel 1. Each drain pan 21, 22, 23 has a drain water collecting groove 21 a, 22 a, 23 a formed at a position facing the lower part of the heat exchanger (refrigerator evaporator) installed in each product storage chamber 11, 12, 13. Has been. Each of the collecting grooves 21a, 22a, 23a is formed so as to be gradually lowered toward the lowest position where the drain ports 21b, 22b, 23b are provided (in the drawing, the drain port 22b of the drain pan 22 is the drain pan 22). Hidden in the flange of the invisible) A heat insulating partition plate 30 (see FIG. 6) is inserted between these drain pans 21, 22, and 23. Reference numerals 24 are notches 1 a, 1 b, and 1 c formed in the heat insulating panel 1, and drain pans 21, 22, and 22. 23 is a drain receiving member attached to the notches 21c, 22c, and 23c formed in 23. The drain receiving member 24 receives and stores the drain water collected in the drain pans 21, 22, and 23 and has a drain water passage portion 24 a having a trap for preventing the inside and outside of the storage from communicating with each other, and a machine room 70 ( It comprises a refrigerant pipe portion 24b through which a refrigerant pipe connecting the condenser 82 installed in FIG. 6) and the heat exchanger (evaporator of the refrigerator) installed in each product storage chamber 11, 12, 13 is inserted. Further, the drain water passage portion 24 a is formed one step lower than the refrigerant pipe portion 24 b in the drain receiving member 24, and the cutouts 1 a, 1 b, 1 c formed in the heat insulating panel 1 have a size corresponding to the drain receiving member 24. On the other hand, the notches 21c, 22c, and 23c formed in the drain pans 21, 22, and 23 are formed in a size corresponding to the refrigerant pipe portion 24b, so that the upper portion of the drain water passage portion 24a is formed in the drain pan 21. , 22, 23.

  Now, as shown in FIG. 3, a plurality of drain grooves 2, 2, 2 extending in the front-rear direction are formed on the upper surface of the heat insulating panel 1, and the resin sheet covers these drain grooves 2, 2, 2. 3, 3 and 3 are provided. The resin sheets 3, 3, 3 constitute the water repellent member according to claim 1. The drain grooves 2, 2 and 2 are relatively wide and located at the back side in the store facing the drain ports 21b, 22b and 23b provided in the recovery grooves 21a, 22a and 23a of the drain pans 21, 22 and 23. It consists of first grooves 2a, 2a, 2a and narrow second grooves 2b, 2b, 2b that communicate with the first grooves 2a, 2a, 2a and gradually incline downward as they go forward. The heat insulation panel 1 is obtained by injecting a foamed polystyrene stock solution by a foam molding machine and foam-molding to integrally form drain grooves 2, 2, 2 and notches 1a, 1b, 1c. Since the structures of the plurality of drain grooves 2, 2, and 2 are the same, the drain groove 2 at the right end in FIG. 3 will be described below.

  The wide first groove 2 a in the drain groove 2 temporarily stores drain water dripped from the drain port 23 b provided in the recovery groove 23 a of the drain pan 23, and has a substantially flat bottom surface and a front side. It is formed to taper as it goes to. 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 toward the front. Further, the angle (α) of the V-shaped cross section of the second groove 2b is the AA cross section and the BB cross section of FIG. 3 (a) and FIG. (Α1> α2), the left and right inclined wall surfaces are formed so as to approach each other toward the front. And the front-end | tip of the 2nd groove | channel 2b is connected to the notch 1c of the heat insulation panel 1. FIG.

  The resin sheet 3 covering the drainage groove 2 is a polyethylene terephthalate (hereinafter referred to as PET) resin molded product, and has water resistance of the heat insulation panel 1 made of foamed polystyrene. The resin sheet 3 is formed in a shape corresponding to the shape of the drainage groove 2 by performing a trimming process after vacuum forming a PET sheet. That is, the resin sheet 3 includes a wide first groove portion 3 a corresponding to the first groove 2 a in the drain groove 2 and a narrow second groove portion 3 b corresponding to the second groove 2 b in the drain groove 2. Become. Similarly to the first groove 2a in the drainage groove 2, the second groove portion 3b of the resin sheet 3 is formed in a V shape and is formed so as to approach each other as the left and right inclined wall faces forward. Yes.

  Here, the length of the second groove portion 3 b of the resin sheet 3 is formed longer than the second groove 2 b in the drainage groove 2, and projects forward from the tip of the second groove 2 b in the drainage groove 2. Yes. 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. This drainer 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 be gradually inclined downward toward the front. It has an inclination angle. The drainer 3c at the tip of the second groove 3b of the resin sheet 3 is configured to enter the drain water passage 24a in the drain receiving member 24.

  In the vending machine provided with the drain water treatment device in which the resin sheet 3 is mounted on the drainage groove 2 of the heat insulation panel 1, the drain water generated in the warehouse is collected in the recovery grooves 21a, 22a of the drain pans 21, 22, 23. , 23a. The drain water collected in the collection grooves 21a, 22a, and 23a is dripped into the first groove portion 3a in the resin sheet 3 that covers the drainage groove 2 of the heat insulation panel 1 through the drain ports 21b, 22b, and 23b, and temporarily. Stored. Since the first groove 3a is formed relatively wide, the collected drain water does not overflow. The drain water stored in the first groove 3a is formed so that the first groove 3a is tapered, so that it is guided forward by capillary action and discharged to the second groove 3b. The drain water discharged to the second groove portion 3b is transferred forward because the second groove portion 3b is formed so as to be gradually inclined downward toward the front, and in the second groove portion 3b, left and right Since the inclined wall surfaces are formed so as to approach each other as they go forward, they are guided forward by capillary action and discharged to the drain water passage portion 24a in the drain receiving member 24. In this case, since the drain 3c is formed at the tip of the second groove 3b, the drain water discharged from the tip of the second groove 3b wraps around from the tip of the second groove 3b to the back, and the heat insulating panel 1 The water is discharged into the drain water passage portion 24a of the drain receiving member 24 without entering the water. The drain water temporarily stored in the drain water passage portion 24a in the drain receiving member 24 serves to prevent the inside and outside of the storage from communicating with each other through the drain groove 2 by a trap provided in the drain water passage portion 24a. On the other hand, the drain water overflowing from the drain water passage portion 24a is dropped 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 apparatus of the vending machine according to this embodiment, the drain water generated by cooling the inside of the product storage with the heat insulating structure is transferred to a predetermined evaporation site. In the drain water treatment apparatus, the heat insulating panel 1 forming the bottom wall 10a of the commodity storage is foamed with foamed polystyrene, and the drain groove 2 for transferring the drain water forward is integrally formed, and then the drain groove 2 is formed. The drainage groove 2 is covered with a water-repellent resin sheet 3, and the drainage groove 2 communicates with the relatively wide first groove 2 a located on the inner side of the warehouse and the first groove 2 a and gradually advances toward the front. The second groove 2b has a narrow second groove 2b that is inclined downward, and the second groove 2b has a substantially V-shaped cross section, and approaches to each other as the left and right inclined wall faces forward. Formed becomes, by the resin sheet 3 of water repellent comprising a first groove portion 3a and the second groove 3b corresponding to the first groove 2a and the second groove 2b, the bottom wall 10a of the commodity storage chamber Since the drainage groove 2 for transferring the drain water forward can be integrally formed by foam molding on the heat insulation panel 1 that forms the shape, the number of processing steps can be reduced and the cost can be reduced. The water-repellent resin sheet 3 to be coated has an effect that the water resistance of the heat insulating panel 1 is not impaired.

  In the above embodiment, the resin sheet 3 covering the drainage groove 2 formed on the heat insulating panel 1 is formed into a shape corresponding to the shape of the drainage groove by trimming a PET sheet after vacuum forming. Although what was mounted | worn with the drainage groove | channel 2 was demonstrated above, after making ABS resin as a resin sheet and vacuum-molding this ABS resin to the shape of the drainage groove | channel 2, it inserts in the foaming type | mold of a heat insulation panel, and the heat insulation panel 1 It can also be heat-sealed to the drain groove 2. In the above embodiment, the case where the resin sheet is used as the water-repellent member has been described. However, the resin sheet may be made of a steel plate, and further, sprayed by applying or spraying a paint containing a resin component having water repellency as the water-repellent member. It can also be applied and coated. Therefore, the present invention is not limited to the embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Thermal 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 ... body cabinet, 20 ... outer door, 21, 22, 23 ... drain pan, 24 ... drain receiving member, 80 ... condensing unit of refrigerator, 81 ... compressor, 82 ... condenser, 90 ... drain water evaporator, 100: A saddle member.

Claims (1)

In a drain water treatment device of a vending machine that transfers drain water generated by cooling the inside of a product storage with a heat insulation structure to a predetermined evaporation site, the insulation panel that forms the bottom wall of the product storage is made of a polystyrene foam stock solution. A drainage groove for injecting and foaming and transferring drain water forward is formed integrally, and the drainage groove is covered with a water-repellent resin sheet. A relatively wide first groove and a narrow second groove that communicates with the first groove and gradually inclines downward toward the front. The second groove has a cross-sectional shape of approximately V. The water-repellent resin sheet has a first groove portion and a second groove corresponding to the first groove and the second groove. The groove of Drain water treatment device for an automatic vending machine, characterized in that to obtain.

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