JP2012211729A - Refrigeration unit for cold storage of farm product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the occurrence of condensation at an outer shell while employing a resin base, in a refrigeration unit for a cold storage of farm products.SOLUTION: A difference of temperatures between a part covering an outer peripheral surface of a lower heat insulation part 4 of the resin base 3 (a part exposing to fresh air) and the surrounding atmosphere is large, and therefore the condensation tends to occur. A passage (gap) for warming the part covering the outer peripheral surface of the lower heat insulation part 4 with wind warmed by a compressor 10 and radiator 9 is provided between a face panel 1 and a heat insulation box (the lower heat insulation part 4), and thereby a part adjacent to the heat insulation box (the lower heat insulation part 4) of the face panel 1 and a gap between the face panel 1 and the heat insulation box (the lower heat insulation part 4) are warmed by warm wind. As a result, the condensation hardly occurs at a part where the resin base 3 of the face panel 1 abuts on the part covering the outer peripheral surface of the lower heat insulation part 4 (the part adjacent to the heat insulation box).

Description

  The present invention mainly relates to the structure of a refrigeration unit for agricultural product cold storage for refrigeration of agricultural products.

  Conventionally, in this type of refrigeration unit for agricultural products, the outer structure is made of sheet metal, but for the purpose of rationalization by reducing weight and the number of parts, resin is used for the base part of the lower part of the outer shell. Some have been formed (for example, see Patent Document 1).

  Hereafter, the conventional refrigeration unit for agricultural products cold storage described in patent document 1 is demonstrated, referring drawings.

  FIG. 3 is an exploded perspective view of a conventional refrigeration unit for agricultural product cold storage disclosed in Patent Document 1, FIG. 4 is an external perspective view of the conventional agricultural product cold storage door opened, and FIG. 5 is the conventional agricultural product. FIG. 6 is a cross-sectional view taken along the line AA of FIG. 4 and FIG. 7 is a cross-sectional view taken along the line BB of FIG. 3.

  The conventional refrigeration unit 21 includes a resin base 22 serving as a lower outer portion, a cooler 23, an upper heat insulating box (not shown) surrounding the cooler 23 from above, and a panel 24 serving as an upper upper portion of the outer shell.

  The crop cooler is provided with a refrigeration unit 21 on the upper part of a highly heat-insulated cooler main body 25 having a door on the front surface, and is configured to flow cooling air from the opening 27 of the top surface 26 of the cooler cooler main body 25 into the refrigerator. ing.

  The internal structure of the refrigeration unit 21 is a resin base 22 shaped with a resin on the bottom, and the air inside the cool box is sucked into the cooling side and discharged after cooling. A hole is provided opposite to the opening 27 of the top surface 26 of the cool box body 25.

  Further, the cooling air on the cooling side flows as indicated by the arrows in FIG. 6, and the cooler 23 is surrounded by a lower heat insulating portion 28 and an upper heat insulating box 29 formed of foam or the like.

  As shown in FIG. 7, the lower heat insulating portion 28 is formed so as to be surrounded by the resin of the continuous resin base 22, and prevents cold air leakage in the cool box. Further, in the central portion of the lower heat insulating portion 28, a receiving portion where the cooler 23 is installed and a dew receiving tray 30 which receives the dew condensation water generated from the cooler 23 are integrated with the resin base 22.

  The condensed water flows from the dew tray 30 to the exhaust heat side naturally. On the exhaust heat side, an evaporation unit 31 is provided for collecting condensed water flowing from the dew receiving tray 30, and the heat of the compressor 32 and the condenser (not shown) and the exhaust heat circulation wind are used. Evaporate and release to the outside.

  Thus, the components of the refrigeration unit 21 are installed on the integrated resin base 22.

JP 2004-251608 A

  However, in the above conventional configuration, since the resin of the resin base 22 wraps around the cooling portion, a resin having a high thermal conductivity is used for the lower heat insulating portion 28 such as a foam material. It cools from the part cooled by the outside of the lower heat insulation part 28, cools outside air, and dew condensation water will generate | occur | produce from the resin surface.

  Moreover, since the resin base 22 is continuously integrated inside the product, it is possible to collect the condensed water on the inside by forming it on the dish so as to receive the condensed water. The problem was that condensed water would be generated outside.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a refrigeration unit for an agricultural product cooler that employs a resin base and is less likely to cause condensation on the outer shell portion while reducing weight and streamlining. And

  In order to achieve the above object, a refrigeration unit for an agricultural product refrigerator according to the present invention is an refrigeration unit for an agricultural product refrigerator that is installed on a ceiling surface of an agricultural product refrigerator, and includes a compressor, a radiator, the compressor, and the compressor. A resin base on which a heat radiating fan that blows air to the radiator is mounted; a dew tray that is molded integrally with the base and receives the condensed water of the cooler; and a heat insulating material that surrounds the cooler and the dew tray. A heat insulation box held by a base and an exterior panel that forms an outer shell of the refrigeration unit together with the base, and is heated by the compressor and the radiator between the exterior panel and the heat insulation box An air passage is provided to warm the vicinity of the connecting portion between the base and the dew tray.

  In the above configuration, since the dew pan is molded integrally with the base, the cooling space insulated by the heat insulation box (contains the cooler and the air in the cool box is cooled by the cooler due to the heat conduction of the resin. When the part facing the space where the air passage for cooling is cooled), condensation is likely to occur in the part that comes into contact with the outside air near the connection part between the base and the dew tray. Since an air passage is provided between the heat insulation box and the air heated by the compressor and the radiator to warm the vicinity of the connection portion between the base and the dew tray, the exterior panel is adjacent to the heat insulation box, and the exterior panel. The space between the heat insulation box and the heat insulation box is warmed by warm air, so that condensation is less likely to occur in a portion of the exterior panel adjacent to the heat insulation box.

  The refrigeration unit for agricultural product cold storage according to the present invention has an air passage for heating the vicinity of the connection portion between the base and the dew pan with the air heated by the compressor and the radiator between the exterior panel and the heat insulation box. The portion of the exterior panel adjacent to the heat insulation box and the gap between the exterior panel and the heat insulation box are warmed by warm air, and condensation is less likely to occur in the portion of the exterior panel adjacent to the heat insulation box.

  Also, in order to prevent condensation, there is no increase in material cost by increasing the heat transfer distance of the resin by increasing the wall thickness of the heat insulation box, and the design of the air path is easy because the base is resin. And there is no increase in cost.

The disassembled perspective view of the refrigeration unit for agricultural products cold storage in Embodiment 1 of this invention Sectional drawing of the cooling part in Embodiment 1 of this invention Disassembled perspective view of a conventional refrigeration unit for agricultural product cold storage External perspective view of a conventional agricultural product cold storage door opened External perspective view of a conventional agricultural product cold storage door closed AA sectional view of FIG. BB sectional view of FIG.

  1st invention is the refrigeration unit for agricultural products cold storage installed in the ceiling surface of agricultural products cold storage, Comprising: The product made from resin which mounts a compressor, a heat radiator, the said compressor, and the thermal radiation fan which ventilates to the said heat radiator A base, a dew tray that is molded integrally with the base and receives the dew condensation water of the cooler, a heat insulating box that is made of heat insulating material and surrounds the cooler and the dew pan, and is held by the base, together with the base It is composed of an exterior panel that constitutes the outer shell of the refrigeration unit, and between the exterior panel and the heat insulation box, the vicinity of the connection portion between the base and the dew pan is warmed by the air heated by the compressor and the radiator. A wind path is provided.

  In the above configuration, since the dew pan is molded integrally with the base, the cooling space insulated by the heat insulation box (contains the cooler and the air in the cool box is cooled by the cooler due to the heat conduction of the resin. When the part facing the space where the air passage for cooling is cooled), condensation is likely to occur in the part that comes into contact with the outside air near the connection part between the base and the dew tray. Since an air passage is provided between the heat insulation box and the air heated by the compressor and the radiator to warm the vicinity of the connection portion between the base and the dew tray, the exterior panel is adjacent to the heat insulation box, and the exterior panel. The space between the heat insulation box and the heat insulation box is warmed by warm air, so that condensation is less likely to occur in a portion of the exterior panel adjacent to the heat insulation box.

  Also, in order to prevent condensation, there is no increase in material cost by increasing the heat transfer distance of the resin by increasing the wall thickness of the heat insulation box, and the design of the air path is easy because the base is resin. And there is no increase in cost.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is an exploded perspective view of a refrigeration unit for agricultural product cold storage in the first embodiment of the present invention. FIG. 2 shows a cross-sectional view of a cooling unit in the refrigeration unit for agricultural product cold storage according to the embodiment.

  As shown in FIGS. 1 and 2, the refrigeration unit for agricultural product cold storage in the present embodiment is composed of a resin base 3 that is located in the lower part and in which the components of the refrigeration unit are installed, and a foam insulating material, and below the cooler 5. The lower heat insulating part 4 in which most of the outer peripheral surface and the upper surface are covered with the resin base 3 and the resin base 3 are fitted and arranged on the lower heat insulating part 4 made of foam heat insulating material. The upper side heat insulation part 2 which insulates the cooler 5 with the lower side heat insulation part 4 and the exterior panel 1 which comprises the outline of a refrigeration unit with the resin base 3 are provided.

  A dew receiving tray 7 that receives the dew condensation water of the cooler 5 on the lower side of the cooler 5 and on the upper side of the lower heat insulating portion 4 is resin-molded integrally with the resin base 3.

  The resin base 3 has a configuration in which a cooler 5 and a cooling fan 6 are mounted and a dew receiving tray 7 that receives dew condensation water generated from the cooler 5 is supported by a lower heat insulating portion 4 that enters under the resin base 3. It has become.

The dew tray 7 has a recess for discharging condensed water from the cooling unit, and is joined to the resin base 3 except for the wind inflow / outflow unit of the cooler 5. The drainage portion is configured to be connected to the evaporating dish 11 in order to evaporate the condensed water with the heat of the compressor 10 and the radiator 9.

  The resin base 3 is configured to surround the lower heat insulating portion 4 with a fitting portion between the upper heat insulating portion 2 and the lower heat insulating portion 4, and is sandwiched between the upper heat insulating portion 2 and the lower heat insulating portion 4. The upper heat insulating portion 2 and the lower heat insulating portion 4 constitute a heat insulating box.

  Further, a gap 12 is provided between the resin base 3 and the exterior panel 1, and the hot air that has received the heat of the radiator 9 and the compressor 10 by the radiating fan 8 is made of resin by the wind pressure of the radiating fan 8. It can pass through the gap 12 around the base 3.

  The operation | movement and effect | action are demonstrated about the refrigeration unit for agricultural products cold storage comprised as mentioned above.

  When the cooler 5 above the dew tray 7 in the inner space of the heat insulating box constituted by the upper heat insulating portion 2 and the lower heat insulating portion 4 is cooled, it is transmitted through the dew receiving tray 7 and the upper heat insulating portion 2 in the resin base 3. And is cooled by heat conduction to the outside of the resin base 3 through a portion sandwiched between the lower heat insulating portions 4.

  On the other hand, the heat radiating fan 8 for the radiator 9 takes outside air and passes the air through the radiator 9, then flows into the compressor 10 to take heat of the compressor 10, and then normally releases it as it is. The hot air in the part flows into the gap 12 between the exterior panel 1 and the resin base 3 and circulates while warming the resin base 3, and is exhausted to the opposite side of the radiator 9 installation part.

  That is, condensation is likely to occur in a portion that is cooled by heat conduction in the resin base 3 and has a large difference from the temperature of the surrounding air, but in the portion where the condensation is likely to occur, the radiator 9 and the compressor 10 Generation of condensation can be suppressed by flowing warm air that has been warmed by heat exchange.

  As mentioned above, in this Embodiment, it is the refrigeration unit for agricultural products cold storage installed in the ceiling surface of agricultural products cold storage, Comprising: It blows to the compressor 10, the radiator 9, the compressor 10, and the radiator 9 A resin base 3 on which the heat radiating fan 8 is mounted, a dew tray 7 that is molded integrally with the resin base 3 and receives the condensed water of the cooler 5, a cooler 5, a cooling fan 6, and a dew tray that are made of heat insulating material A heat insulating box (upper heat insulating portion 2 and lower heat insulating portion 4) surrounded by a resin base 3 and an exterior panel 1 that forms an outer shell of the refrigeration unit together with the resin base 3; The outer peripheral surface of the lower heat insulating portion 4 in the vicinity of the connection portion between the resin base 3 and the dew tray 7 with the air heated by the compressor 10 and the radiator 9 between the heat insulating box (lower heat insulating portion 4). An air passage (gap 12) for heating the covered part is provided. A.

  In the above configuration, the resin base 3 is resin-molded integrally with the dew tray 7 and is configured to cover the fitting portion of the lower heat insulating portion 4 with the upper heat insulating portion 2 and the outer peripheral surface of the lower heat insulating portion 4. Since it is sandwiched between the upper heat insulating portion 2 and the lower heat insulating portion 4, it is insulated by the heat insulating box constituted by the upper heat insulating portion 2 and the lower heat insulating portion 4 due to the heat conduction of the resin constituting the resin base 3. The portion facing the cooled space (the space in which the cooler 5 is housed and the air passage for cooling the air in the cool box 5 is formed) is cooled (the dew pan 7 is the cooler 5). The portion that covers the outer peripheral surface of the lower heat insulating portion 4 that is in the vicinity of the connecting portion between the resin base 3 and the dew tray 7 (the portion that comes into contact with the outside air) has a large difference from the temperature of the surrounding air. Therefore, condensation tends to occur.

However, between the exterior panel 1 and the heat insulating box (lower heat insulating portion 4), the lower side near the connecting portion between the resin base 3 and the dew pan 7 with the air heated by the compressor 10 and the radiator 9 Since the air path (gap 12) for warming the part which covers the outer peripheral surface of the heat insulation part 4 is provided, the heat insulation box (
The portion 12 adjacent to the lower heat insulating portion 4) and the gap 12 between the outer panel 1 and the heat insulating box (lower heat insulating portion 4) are warmed by warm air, and the resin base 3 in the outer panel 1 is the lower heat insulating portion. Condensation is less likely to occur in a portion adjacent to the portion covering the outer peripheral surface of 4 (portion adjacent to the heat insulating box).

  In addition, in order to prevent condensation, there is no increase in material cost by increasing the heat transfer distance of the resin by increasing the wall thickness of the heat insulating box, and the resin base 3 is made of resin for the formation of the air path (gap 12). Therefore, it can be designed easily and the cost is not increased.

  That is, since only the warm air exhausted is passed through the outer peripheral portion of the heat insulating box in the resin base 3, it is not necessary to increase the cost of enlarging the heat insulating material, and the resin base 3 is used. The air passage (gap 12) can be configured relatively easily.

  As described above, the refrigeration unit for agricultural product cold storage according to the present invention can easily take measures against condensation against a resin base where condensation is likely to occur. Other refrigeration-related refrigeration units having a structure in which a refrigeration unit is provided on the top surface can also be employed.

DESCRIPTION OF SYMBOLS 1 Exterior panel 2 Upper heat insulation part 3 Resin base 4 Lower heat insulation part 5 Cooler 7 Dew tray 8 Radiation fan 9 Radiator 10 Compressor 12 Crevice

Claims (1)

A refrigeration unit for an agricultural product cooler installed on a ceiling surface of an agricultural product cooler, and a resin base on which a compressor, a radiator, a compressor and a radiator fan for blowing air to the radiator, and the base A dew tray that is molded integrally with resin and receives dew condensation water from the cooler, a heat insulating box that is made of a heat insulating material and surrounds the cooler and the dew pan, and is configured by the base together with the base of the refrigerator unit An air passage is provided between the exterior panel and the heat insulation box to warm the vicinity of the connecting portion between the base and the dew pan with the air heated by the compressor and the radiator. A refrigerated unit for agricultural products.

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