JP5022759B2 - Showcase - Google Patents

Description

  The present invention defines a display chamber that opens to the front surface by a partition plate that is attached to the inside of the heat insulating wall with a space therebetween, and forms a cold air duct between the partition plate and the heat insulating wall. It is related with the showcase which cools the said display chamber by discharging cool air through the display chamber.

  Conventionally, this type of showcase has a partition plate attached to the inside of the heat insulation wall with a space therebetween, which defines a display chamber that opens to the front, and between the partition plate and the heat insulation wall. A duct is formed, and a cooler and a blower are installed in the cold air duct. With such a configuration, the blower is operated, and the cool air is discharged from the upper edge of the display chamber opening via the cool air duct, thereby cooling the entire display chamber while forming a cool air curtain in the opening.

  In addition to this, as shown in Patent Document 1, a partition wall for vertically partitioning the display chamber is provided, and an intermediate duct for blowing cool air toward the display chamber opening below the partition wall is provided in the partition wall. There is a showcase in which an electric heater is attached to a plurality of shelves installed in the display room. FIG. 10 is an enlarged cross-sectional view of the vicinity of the rear end portion (lower end of the partition plate 103) of the partition wall 100 in the conventional showcase.

  In FIG. 10, an intermediate duct 101 formed in the partition wall 100 includes a partition plate 103 formed corresponding to the display chamber 102 above the partition wall 100 and a cold air duct 104 formed between heat insulating walls (not shown). The damper 105 is formed in communication and blocks the cool air toward the cool air duct 104 above the partition wall 100. A flexible seal member 106 is provided at the rear end of the partition wall 100, and the rear end of the partition wall 100 and the lower end of the partition plate 103 are attached to each other through the seal member 106.

  With such a configuration, the damper 105 blocks the cool air toward the cool air duct 104 above the partition wall 100, discharges cool air from the intermediate duct 101, generates heat in the electric heater on the shelf located above the partition wall 100, and By stopping the heat generation of the electric heaters on the shelves, it is possible to heat and use the interior of the display chamber 102 above the partition wall 100 and to cool and use the display chamber below the partition wall 100.

In such a showcase, in addition to such use, in the state where the cold air toward the cold air duct 104 above the partition wall 100 is blocked, by stopping the heat generation to the electric heater of the shelf located above the partition wall 100, By using the inside of the display chamber 102 above the partition wall 100 at room temperature or adjusting the amount of cool air directed to the cool air duct 104 above the partition wall 100, the upper and lower display chambers of the partition wall 100 are heated in the temperature range. Different cooling uses are also possible.
JP 2004-69275 A

  In each of the above showcases, when a temperature difference occurs between the inside and outside of the partition plate that partitions the display chamber and the cold air duct, moisture in the display chamber condenses on the inner surface of the partition plate as condensation. In particular, when the showcase is used as an open showcase having a large front surface, the outside air containing a large amount of moisture is likely to enter the display room, thereby causing condensation on the inner surface of the partition plate.

  This condensed water W eventually flows down along the inner surface of the partition plate 103 and flows on the deck pan constituting the bottom surface of the display chamber and on the partition wall 100 that partitions the display chamber up and down. Since the product is displayed on the deck pan and the partition wall 100 like the other shelves, there is a problem that the product is flooded by the condensed water W and the product value is lowered.

  In particular, when a usage pattern in which the intermediate duct 101 is formed to limit the amount of cool air into the upper display chamber 102 is adopted, a cool air curtain cannot be formed in the front opening of the upper display chamber 102 with the cool air. The partition plate 103 is cooled by the rising cold air even with a small amount. For this reason, a large amount of moisture in the flowing outside air becomes condensed water W on the surface of the partition plate 103 on the display chamber 102 side, and the upper surface of the partition wall 100 is submerged. There exists a problem that it becomes impossible to use as a shelf suitably.

  Similarly, when the room temperature use in which the intermediate duct 101 is formed to stop the inflow of the cold air into the upper display chamber 102 is adopted, the cooling is performed by using the display chamber below the partition wall 100 for cooling. The partition plate 103 corresponding to the upper display chamber 102 is also cooled by the heat conduction of the partition plate and the cool air leaked from the gap of the damper 105 for stopping the cooling air inflow upward. There is a problem that the dew condensation water W adheres to the surface on the display chamber 102 side and the upper surface of the partition wall 100 is submerged.

  Therefore, the present invention has been made to solve the conventional technical problems, and the bottom surface of the display chamber and the upper surface of the partition wall forming the intermediate duct are submerged by the condensed water generated on the display chamber side of the partition plate. Provided is a showcase that can avoid the disadvantages.

The showcase of the present invention defines a display chamber that opens to the front surface by a partition plate that is attached to the inside of the heat insulation wall with a space therebetween, and forms a cold air duct between the partition plate and the heat insulation wall, Condensed water flowing down from the surface of the partition plate on the display chamber side is formed on the lower edge of the partition plate by cooling the display chamber by discharging cool air to the display chamber through the cool air duct. thereby forming bent a water receiving part over to the left and right receiving, receiving water part has a substantially U-shaped section opening upward, on both sides of the receiving water portion, the inside of the person receiving water unit A drainage portion that communicates with the inside of the cold air duct is formed.

The showcase of the invention of claim 2 is the above-mentioned invention, wherein the showcase is configured to discharge the cold air passing through the cold air duct from the upper edge of the opening of the display chamber and to partition the display chamber up and down, and the partition wall, An intermediate duct for blowing cool air toward the display chamber opening below the partition wall, and the cool air from the cool air duct flows into the intermediate duct and restricts the supply of cold air to the cool air duct above the intermediate duct, or And a damper for stopping, forming a water receiving portion at the lower edge of the partition plate corresponding to the display chamber above the partition wall, and partitioning the front wall of the water receiving portion substantially flush with the front surface of the partition plate It is characterized by being brought into contact with the rear end of the wall .

  A showcase according to a third aspect of the present invention is characterized in that, in each of the above-mentioned inventions, the bottom wall of the water receiving portion is inclined backward and low.

  The showcase of the invention of claim 4 is characterized in that, in each of the above inventions, a water absorbing member is provided on the inner surface of the water receiving portion.

According to the present invention, a display chamber that opens to the front surface is defined by a partition plate that is attached to the inside of the heat insulating wall with a space therebetween, and a cold air duct is formed between the partition plate and the heat insulating wall. In a showcase in which the display room is cooled by discharging cool air to the display room through a duct, the lower edge of the partition plate receives condensed water flowing from the surface of the partition room on the display room side. the aqueous portion over to the left and right so as to form folding, receiving water part has a substantially U-shaped section opening upward, on both sides of the receiving water portion, inside and cold air those receiving water unit By forming a drainage part that communicates with the inside of the duct, even if the moisture in the display chamber condenses as condensation water on the display chamber side surface of the partition plate due to the temperature difference between the inside and outside of the partition plate, the condensed water is, a substantially U which flows down the surface of the display chamber side of the partition plate is opened upward Is received in the water receiving portion of Jo, it can be discharged into the cold air duct through the both sides of the drain portion.

  Accordingly, it is possible to avoid the inconvenience that the condensed water flowing down the partition plate flows to the bottom surface of the display chamber that is also used as the product display shelf, and the product displayed on the bottom surface is immersed in water.

  According to the invention of claim 2, in the above invention, the cool air that has passed through the cool air duct is discharged from the upper edge of the opening of the display chamber, and the partition wall that partitions the display chamber up and down, and the partition wall, An intermediate duct for blowing out cool air toward the display room opening below the wall, and the cool air from the cool air duct flows into the intermediate duct, and the supply of the cool air to the cool air duct above the intermediate duct is restricted, or And a damper for stopping, and by forming a water receiving portion at the lower edge of the partition plate corresponding to the display chamber above the partition wall, due to the temperature difference between the inside and outside of the partition plate, the interior of the display chamber above the partition wall Even when moisture condenses on the display chamber side surface of the partition plate as condensation water, the condensation water is formed on the partition plate lower edge by flowing down the display chamber side surface of the partition plate. It becomes possible to receive in the water receiving part

Accordingly, it is possible to avoid the inconvenience that the condensed water flowing down the partition plate flows to the upper surface of the partition wall and the products displayed on the upper surface of the partition wall are immersed in water. In this case, since the front wall of the water receiving portion is substantially flush with the front surface of the partition plate and is in contact with the rear end of the partition wall, the cold air in the cold air duct or the intermediate duct is separated from the front wall of the water receiving portion. It is possible to prevent leakage from between the partition walls into the display chamber.

  In particular, when the supply of cool air to the cool air duct above the intermediate duct is restricted by the damper, an air curtain cannot be formed in the upper display chamber opening with the cool air, but the partition plate is cooled by the cool air rising even by a small amount. As a result, a large amount of moisture in the outside air that flows into the display chamber side surface of the partition plate becomes condensed water, which adheres to the display chamber above the partition wall. Since it becomes possible to receive by the water-receiving part formed in a lower edge, it becomes very effective.

  In addition, when the supply of cool air to the cool air duct above the intermediate duct is stopped by the damper and the display room above the partition wall is used at room temperature, the display room above the partition wall is actively cooled. However, when the display room below the partition wall is used for cooling, the partition plate corresponding to the upper display room is not cooled by the conduction heat of the cooled partition plate or the cold air leaking from the gap of the damper. Due to the temperature difference from the display room that is cooled and used at room temperature, the moisture in the outside air that flows into the partition plate is attached as condensed water on the surface of the partition plate on the display room side. Even in such a case, since the condensed water can be received by the water receiving portion formed on the lower edge of the partition plate, the dew condensation water can be used without immersing the upper surface of the partition wall.

  According to the invention of claim 3, in addition to the above-mentioned inventions, the bottom wall of the water receiving portion is inclined backward and can reliably prevent the inflow of condensed water to the display chamber side. It becomes possible.

  According to the invention of claim 4, in addition to the above inventions, it is possible to more reliably prevent the inflow of condensed water to the display chamber side by providing a water absorbing member on the inner surface of the water receiving portion. In addition, even when dust flows into the water receiving portion, it is possible to suppress the disadvantage of blocking the drainage portion due to the presence of the water absorbing member, and smooth drainage to the cold air duct side is possible. It can be realized.

  Next, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a perspective view of a showcase 1 according to an embodiment to which the present invention is applied, FIG. 2 is a front view of the showcase 1 of FIG. 1, FIG. 3 is a side view of the showcase 1 of FIG. A vertical side view of the showcase 1 and FIG. 5 are perspective views of the showcase 1 shown in FIG.

  The showcase 1 of an Example is what is called an open showcase installed in stores, such as a convenience store and a supermarket. In the showcase 1, a main body 2 is constituted by a heat insulating wall 3 having a substantially U-shaped cross section that opens to the front surface, and side plates 4 and 4 attached to both sides thereof. A partition plate 6 and a top surface plate 7 are disposed on the back surface and the top surface inside the heat insulation wall 3 at intervals, respectively, and between the partition plate 6 and the top surface plate 7 and the heat insulation wall 3 from the back upward. A crossing cold air duct 9 is formed.

  Further, a deck pan 10 extending forward is provided at the lower end of the partition plate 6, and a display chamber 11 is formed inside the partition plate 6, the top plate 7, and the deck pan 10. A lower duct 15 communicating with the cold air duct 9 and constituting a part thereof is formed below the deck pan 10.

  The upper end of the cool air duct 9 communicates with the upper cool air discharge port 16 positioned at the upper edge of the front opening of the display chamber 11, and the front end of the lower duct 15 is positioned at the lower edge of the front opening of the display chamber 11 and includes a plurality of slits. It communicates with the cold air inlet 17. Further, a cool air circulation blower 19 is disposed in the lower duct 15 below the deck pan 10, and a cooler 20 constituting a refrigeration cycle of the cooling device is vertically installed in the cool air duct 9 behind the display chamber 11. Yes.

  A machine room 25 is formed below the heat insulating wall 3, and in the machine room 25, a compressor (not shown) that forms a refrigerant circuit of a cooling device together with the cooler 20, a condenser, and a condenser blower And an electrical box (not shown) that houses a power source and a control board are also provided. A back plate 29 made of a steel plate is attached to the back of the heat insulating wall 3 with a predetermined distance from the back surface of the heat insulating wall 3, and an exhaust duct is provided between the back plate 29 and the heat insulating wall 3. 30 is configured. The lower end of the exhaust duct 30 opens and communicates with the rear portion of the machine room 25, and the upper end is open above the showcase 1. Reference numeral 31 denotes a front panel for closing the front surface of the machine room 25 so as to be freely opened and closed.

  On the other hand, a partition wall 12 is provided, for example, in the center of the display chamber 11 from the front part to the rear part of the heat insulating wall 3, so that a lower display room (first display) is provided below the partition wall 12. A display chamber 13 is formed, and an upper display chamber (second display chamber) 14 is formed above the partition wall 12.

  In each of the display chambers 13 and 14, a shelf device 21 is installed in one stage in this embodiment. Each shelf device 21 has a pair of left and right brackets 22 having hook-like claws protruding rearward at the rear end, a shelf plate 23 mounted across the bracket 22, and a product placement surface of the shelf plate 23. And an electric heater for heating (not shown) attached to the back side of the heater. Similarly, on the upper surface of the deck pan 10 located in the lower display chamber 13 and the upper surface of the partition wall 12 located in the upper display chamber 14, shelves configured in substantially the same manner as the shelf plate 23 of the shelf device 21. A plate 24 is provided, and a heating electric heater (not shown) is attached to the back side of the product placement surface of the shelf plate 24.

  In this embodiment, the partition plate 6 constituting the back surface of the display chamber 11 is composed of a lower partition plate (first partition plate) 6A constituting the back surface of the lower display chamber 13 and an upper surface constituting the back surface of the upper display chamber 14. A partition plate (second partition plate) 6B is composed of two parts. On both sides of the lower partition plate 6A and the upper partition plate 6B, shelves are provided in the lower display chamber 13 and the upper display chamber 14 in the vertical direction. Supports 32 and 32 are provided. A plurality of engagement holes 32A are formed in the shelf support column 32 at predetermined intervals in the vertical direction. By engaging the claws of the bracket 22 with the engagement holes 32A in a freely detachable manner. Each shelf device 21 is installed in the lower display chamber 13 and the upper display chamber 14 so that the vertical position (height) can be changed.

  Next, the configuration of the partition wall 12 and further the configuration of the partition plates 6A and 6B constituting the back surfaces of the display chambers 13 and 14 will be described with reference to FIG. 4 and FIGS. 6 is an enlarged cross-sectional view around the rear end of the partition wall 12 (lower end of the upper partition plate 6B), and FIG. 7 is an enlarged cross-sectional view around the rear end of the partition wall 12 (lower end of the upper partition plate 6B) (with a water absorbing member 43). 8 is a cross-sectional view of the lower end portion of the upper partition plate 6A, and FIG. 9 is an enlarged cross-sectional plan view around the rear end portion of the partition wall 12 (lower end of the upper partition plate 6B).

  As shown in FIGS. 6 and 7, the partition wall 12 includes a heat insulating wall 12A and a duct member 33 provided on the lower surface of the heat insulating wall 12A. Between the heat insulating wall 12A and the duct member 33, an intermediate wall is formed. A duct 34 is formed. The front end of the intermediate duct 34 communicates with a cold air discharge port 35 that opens obliquely forward and downward at the front end of the partition wall 12, and the rear end opens at a cold air introduction port 36 (see FIG. 4). In this embodiment, a flexible sealing member 40 is provided on the rear end surface of the heat insulating wall 12A constituting the partition wall 12, and the lower end of the upper partition plate 6B is deformed by the deformation of the seal member 40. It is set as the structure which closely_contact | adheres to a part. Further, the upper end of the lower partition plate 6 </ b> A is configured to be latched to the rear end of the duct member 33. Accordingly, the intermediate duct 34 formed in the partition wall 12 is communicated with the cold air duct 9 through the cold air inlet 36 at the rear end.

  The duct member 33 is attached to the upper side of the cold air inlet 36 so as to be movable in the front-rear direction so that the cool air from the cool air duct 9 flows into the intermediate duct 34 and the cool air duct 9 above the intermediate duct 34. A damper 37 is provided for restricting or stopping the supply of cold air to the vehicle. The damper 37 is movably held by a damper receiver 38 provided on the duct member 33 as shown in FIG. 4 is attached to the front surface of the heat insulating wall 3 located behind the damper 37, and the rear end of the damper 37 abuts to close the cold air rising in the cold air duct 9, so that Is a damper contact member for alleviating the impact when the damper 37 is contacted.

  On the other hand, at the lower edge of the upper partition plate 6B provided in contact with the rear end of the partition wall 12 as described above, a water receiving portion 41 that opens upward in the left and right directions is bent. This water receiving part 41 receives the dew condensation water W flowing down from the surface on the upper display chamber 14 side of the upper partition plate 6B. In the present embodiment, the water receiving portion 41 bends the lower end of the upper partition plate 6B once at a predetermined angle rearward and downward, and then bends the lower end into a substantially U-shaped cross section having an opening upward. The front wall 41 </ b> A is substantially flush with the front surface of the upper partition plate 6 </ b> B facing the inside of the upper display chamber 14.

  The front wall 41A of the water receiving section 41 is in close contact with the sealing member 40 provided at the rear end of the partition wall 12 as described above, so that the cool air duct 9 and the upper display chamber 14 are partitioned. Is done.

  Further, in this embodiment, the bottom wall 41B that constitutes the water receiving portion 41 is formed so as to be inclined backward and the dew condensation water W flowing down from the upper partition plate 6B facing the upper display chamber 14 can be obtained. More water can be received in the water receiving portion 41 and it is difficult for the water to flow into the upper display chamber 14.

  Furthermore, the upper partition plate 6B is provided so as to form a gap as shown in FIG. 9 between the above-described shelf columns 32 provided on both sides. The drainage part 42 which connects the inside of this water-receiving part 41 and the inside of the cool air duct 9 is formed. In addition, when the front opening of the showcase 1 to which the invention is applied is configured to be relatively long, the bottom wall of the water receiving portion 41 is provided in addition to the drainage portions 42 provided on both sides of the partition plate 6B. 41A may be provided with a drain hole that allows communication between the inside of the water receiving portion 41 and the inside of the cold air duct 9.

  Further, a water absorbing member 43 may be provided on the inner surface of the water receiving portion 41, for example, as shown in the cross-sectional view of FIG. In this embodiment, Universex (trade name) is used as an example of the water-absorbing member 43, which uses a non-woven fabric such as polyester fiber as a base material, and is fixed by thermally curing fine phenol on the base material. Further, it was dried after being immersed in an alcohol-based solvent after imparting hydrophilicity.

  As a result, the condensed water W received in the water receiving part 41 is provided with the water absorbing member 43 on the inner surface, so that the condensed water in the water receiving part 41 is sucked up by the capillary phenomenon of the water absorbing member 43. It is naturally evaporated by diffusing from the surface.

  In addition to this, the water absorbing member is provided with a water absorbing member 44 similarly configured only in the vicinity of the drainage portion 42 where the condensed water W in the water receiving portion 41 is drained as shown in FIG. The same effect can be achieved. In this case, the dust contained in the dew condensation water W received in the water receiving part 41 can be captured by the water absorbing member 44, and the inconvenience that the dust etc. flows into the cold air duct 9 together with the dew condensation water W. It becomes possible to suppress. Accordingly, it is possible to prevent inconvenience due to dust falling on the bottom of the cool air duct 9 and the cooler 20 that are difficult to clean, avoid clogging of the cooler 20 due to the dust, and prevent a reduction in air flow. It becomes possible.

  The water-absorbing members 43 and 44 may be detachably provided in the water-receiving part 41, whereby it becomes possible to separately wash by removing the water-absorbing members 43 and 44, thereby improving the cleaning property. And maintenance of hygiene can be realized.

  The water receiving section 41 as described above is configured not only on the lower edge of the upper partition plate 6B that forms the back surface of the upper display chamber 14, but also on the lower edge of the lower partition plate 6A that forms the back surface of the lower display chamber 13. It is assumed that

  With the above configuration, when the entire display chamber 11 is refrigerated and used in the same temperature zone, the damper 37 provided on the partition wall 12 is moved forward and positioned in front of the cold air duct 9. When the cool air circulation blower 19 is operated in this state, the cool air exchanged with the cooler 20 rises in the cool air duct 9 and is discharged from the upper cool air discharge port 16. The discharged cool air passes through the display chamber 11 (each display chamber 13, 14) while forming a cool air curtain in the front opening of the display chamber 11 (actually, the front opening of the upper display chamber 14 and the lower display chamber 13). Cooling. Then, the circulation that is sucked into the lower duct 15 from the cold air inlet 17 and sucked into the blower 19 again is repeated. As a result, the entire area in the display room 11 is cooled to the refrigeration temperature, and the products displayed in the display room 11 are cooled.

  In this case, even though the cold air curtain is formed in the front opening of each display chamber 13, 14, when outside air containing a lot of moisture flows into the display chambers 13, 14 due to disturbance or the like, When a product containing a large amount of water is displayed, low-temperature cold air circulates in the cold air duct 9, and the partition plates 6A and 6B are kept at a low temperature. Condensed water W is generated on the surface.

  The condensed water W flows down along the partition plates 6A and 6B by its own weight, and is received by the water receiving portion 41 formed on the lower edge of the partition plates 6A and 6B. The condensed water W received by the water receiving portion 41 is drained from the drainage portions 42 (in this embodiment, between the shelf columns 32 and the upper partition plates 6A, 6B) formed on both sides of each partition plate 6A, 6B. It is discharged into the cold air duct 9 through the gap formed. Thereby, it is possible to avoid the inconvenience that the condensed water W flowing down the partition plates 6A and 6B flows to the bottom surfaces of the display chambers 13 and 14 and is immersed in water.

  On the other hand, when the lower display chamber 13 and the upper display chamber 14 are used as different temperature zones, for example, the refrigeration temperature (for example, + 10 ° C.) in which beverages are stored in the lower display chamber 13 is used. 14, when used as a semi-refrigeration temperature (for example, + 20 ° C.) in which a lunch box or a sandwich is accommodated, the damper 37 provided on the partition wall 12 is moved farther forward than the rear, and the inside of the cold air duct 9 is moved. The amount of cold air rising upward from the damper 37 is limited.

  When the cool air circulation blower 19 is operated in this state, the cool air exchanged with the cooler 20 rises in the cool air duct 9 and is guided to the cool air inlet 36 by the damper 37 and formed in the partition wall 12. Then, the air is blown out from the cold air discharge port 35 toward the opening of the lower display chamber 13 formed below the partition wall 12 through the intermediate duct 34. Such cold air cools the inside of the lower display chamber 13 while forming a cold air curtain in the front opening of the lower display chamber 13. Then, the circulation that is sucked into the lower duct 15 from the cold air inlet 17 and sucked into the blower 19 again is repeated. As a result, the inside of the lower display chamber 13 is cooled to the refrigeration temperature, and the products displayed in the lower display chamber 13 are cooled.

  Here, in this embodiment, the damper 37 restricts the supply of cool air toward the upper display chamber 14, and the upper display chamber 14 has a higher set temperature than the lower display chamber 13. For this reason, a cool air curtain cannot be formed in the front opening of the upper display chamber 14 by the cool air toward the upper display chamber 14, but the upper partition plate 6B is cooled by the cool air rising in the cool air duct 9 even in a small amount. Accordingly, when the outside air containing a lot of moisture flows into the upper display chamber 14, a large amount of the moisture in the outside air becomes condensed water W on the surface of the upper partition plate 6B on the upper display chamber 14 side. Adhere to.

  The condensed water W flows down along the surface on the upper display chamber 14 side of the upper partition plate 6B and is received by the water receiving portion 41 formed on the lower edge of the upper partition plate 6B. The dew condensation water W received by the water receiving portion 41 is a drainage portion 42 (a gap formed between the shelf support column 32 and the upper partition plate 6B in this embodiment) formed on both sides of the upper partition plate 6B. ) Is discharged into the cold air duct 9. Therefore, the dew condensation water W flowing down the upper partition plate 6 </ b> B flows on the upper surface of the partition wall 12 on which the shelf plate 24 is placed or on the shelf plate 24, and the product or partition wall 12 displayed on the shelf plate 24. It is possible to avoid the disadvantage that the upper surface is immersed in water.

  Thus, by using one of the display chambers 13 and 14 formed in the display chamber 11 as a temperature zone close to room temperature, the other is used as a refrigeration temperature zone. In the embodiment in which a large amount of the dew condensation water W adheres to the partition plate in the display room on the side used at room temperature, the present invention is extremely effective.

  When the supply of cold air to the cold air duct 9 above the intermediate duct 34 is stopped by the damper 37 and the inside of the upper display chamber 14 formed above the partition wall 12 is used at room temperature, the upper display chamber 14 Inside, cold air is not actively supplied. However, by cooling the inside of the lower display chamber 13 formed below the partition wall 12, it is formed between the conduction heat of the cooled partition plate 6 </ b> A and the wall surface constituting the damper 37 and the cold air duct 9. The upper partition plate 6 </ b> B corresponding to the inside of the upper display chamber 14 is cooled by the cold air leaking from the gap or the like. Therefore, the moisture in the outside air that flows into the surface of the upper display chamber 14 side of the partition plate 6B adheres as condensed water W due to the temperature difference from the inside of the upper display chamber 14 that is used at room temperature.

  Even in such a case, since the condensed water W can be received by the water receiving portion 41 formed at the lower edge of the upper partition plate 6B, the shelf plate 24 provided on the upper surface of the partition wall 12 or the upper surface of the partition wall 12. Can be suitably used as a product placement surface without being immersed in water.

  In particular, in the present embodiment, the bottom wall 41B of the water receiving portion 41 formed on the partition plate 6B that receives the dew condensation water W is formed so as to be inclined backward, so that dew condensation toward the upper display chamber 14 side is achieved. It becomes possible to reliably prevent the inflow of water W.

  Further, as shown in FIGS. 7 and 9, by providing the water absorbing members 43 and 44 on the inner surface of the water receiving portion 41, the condensed water W in the water receiving portion 41 is effectively supplied to the water absorbing members 43 and 44. It is possible to prevent the inflow of the dew condensation water W to the upper display chamber 14 side more reliably. In particular, in the present embodiment, the dew condensation water W sucked up by the water absorbing members 43 and 44 can be diffused from the surface by a capillary phenomenon, and thus can be naturally evaporated. Therefore, the dew condensation water W can be treated effectively, and an appropriate product display can be realized.

  Further, as shown in FIG. 9, by providing the water absorbing member 44 in the vicinity of the drainage portion 42 of the water receiving portion 41, even if dust flows into the water receiving portion 41, Therefore, the inconvenience that the dust and the like flow into the cold air duct 9 together with the dew condensation water W can be suppressed. Accordingly, it is possible to prevent inconvenience due to dust falling on the bottom of the cool air duct 9 and the cooler 20 that are difficult to clean, avoid clogging of the cooler 20 due to the dust, and prevent a reduction in air flow. It becomes possible.

  In the showcase 1 in this embodiment, an electric heater is provided on the shelf plate 23 and the partition plate 12 constituting the shelf device 21 or the shelf plate 24 placed on the deck pan 10 upper surface. Therefore, the operation of the cooling device as described above is stopped, and the entire display chamber 11 can be heated and used by controlling the energization of the electric heaters provided on the shelf plates 23 and 24.

  In addition, in a state where the cool air duct 9 is closed by the damper 37, only the electric heaters provided in the shelf plates 23 and 24 corresponding to the inside of the upper display chamber 14 are energized and controlled, and the cooling device and the cool air circulation blower 19 are operated. Thus, the inside of the upper display chamber 14 can be used for heating, and the inside of the lower display chamber 13 can be used as a predetermined refrigeration temperature.

  Even in this case, a part of the cool air rising in the cool air duct 9 leaks into the cool air duct 9 toward the upper display chamber 14 from the gap of the damper 37, etc., and the upper partition plate 6B is cooled, It is conceivable that outside air containing a large amount of air flows into the upper display chamber 14, and moisture in the outside air causes condensation on the surface of the upper partition plate 6B on the upper display chamber 14 side. However, in such a case, since the inside of the upper display chamber 14 is positively heated by the electric heater, dew condensation usually occurs on the surface of the upper partition plate 6B on the upper display chamber 14 side. I want to.

  However, depending on the products displayed in the upper display chamber 14 or depending on the state of the outside air, the humidity in the upper display chamber 14 increases and condensation occurs on the surface of the upper partition plate 6B on the upper display chamber 14 side. In some cases. Even in that case, the dew condensation water W can be received and smoothly drained or evaporated by the water receiving part 41 formed on the lower edge of the upper partition plate 6B in the same manner as described above. With W, it is possible to effectively avoid the inconvenience that the upper surface of the partition wall 12 and the upper surface of the shelf 24 that are the bottom surface of the upper display chamber 14 are immersed.

  In this embodiment, the display room 11 is divided into two sections, a lower display room 13 and an upper display room 14, and the rear surfaces of the display rooms 11 are constituted by the partition plates 6A and 6B, and the lower edges of these partition plates 6A and 6B are provided. Although the water-receiving part 41 is formed, it is not limited to this, and when the back surface of the display chamber 11 is formed by the one partition plate 6 without providing the partition wall 12, or in the display chamber 11 Can be divided into a plurality of partitions by a plurality of partition walls, and each back surface is configured by a plurality of partition plates, the same effect can be obtained by similarly forming the receiving portion 41 on the lower edge of each partition plate. Obtainable.

It is a perspective view of a showcase. It is a front view of a showcase. It is a side view of a showcase. It is a vertical side view of a showcase. It is a perspective view of a showcase in the state where a shelf was removed. It is an expanded sectional view of the partition wall rear end part (upper partition plate lower end) periphery. Similarly, it is an expanded sectional view (with a water absorbing member) around the rear end of the partition wall (lower end of the upper partition plate). It is sectional drawing of the upper partition plate lower end part. It is an expanded transverse plane view of the partition wall rear end part (upper partition plate lower end) periphery. It is an expanded sectional view around the conventional partition plate lower end.

W Condensed water 1 Showcase 3 Thermal insulation wall 6 Partition plate 6A Lower partition plate (first partition plate)
6B Upper divider (second divider)
9 Cold air duct 10 Deck pan 12 Partition wall 13 Lower display room (first display room)
14 Upper display room (second display room)
DESCRIPTION OF SYMBOLS 15 Lower duct 16 Upper cold air discharge port 17 Cold air suction port 19 Air blower 23, 24 Shelf board 32 Shelf column 33 Duct member 34 Intermediate duct 35 Cold air discharge port 37 Damper 40 Seal member 41 Water receiving part 41A Front wall 41B Bottom wall 42 Drainage part 43, 44 Water absorbing member

Claims (4)

A partition plate attached to the inside of the heat insulation wall with a space therebetween defines a display chamber that opens to the front, and a cold air duct is formed between the partition plate and the heat insulation wall, and the cold air duct In a showcase that cools the display room by discharging cool air into the display room,
On the lower edge of the partition plate, a water receiving portion that receives condensed water flowing down from the surface on the display chamber side of the partition plate is bent to the left and right, and the cross section of the water receiving portion is opened upward. and it exhibits a U-shaped on both sides of the receiving water unit, showcase, characterized in that the formation of the drain portion that communicates with the inside of the person receiving water portion and in said cool air duct. The cool air that has passed through the cold air duct is discharged from the upper edge of the opening of the display chamber, and is partitioned into the display chamber up and down, and is configured in the partition wall, toward the display chamber opening below the partition wall An intermediate duct for blowing out the cold air, and a damper for flowing the cold air from the cold air duct to the intermediate duct and restricting or stopping the supply of the cold air to the cold air duct above the intermediate duct; The water receiving portion is formed at a lower edge of the partition plate corresponding to the display chamber above the partition wall, and the partition wall has a front wall substantially flush with the front surface of the partition plate The showcase according to claim 1, wherein the showcase is brought into contact with a rear end of the display case.   The showcase according to claim 1 or 2, wherein a bottom wall of the water receiving portion is inclined backward and low.   The showcase according to any one of claims 1 to 3, wherein a water absorbing member is provided on an inner surface of the water receiving portion.

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