JP2010019513A - Showcase - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To securely prevent condensation water and frost adhered to a guard member from entering into a commercial product storage region. <P>SOLUTION: This showcase 10 in which cooled air is made to flow from a blowout port 41 to a suction port 42 includes the tabular guard member 60 arranged within an air flowing duct 40 and inhibiting passage of a commercial product through the suction port 42. The guard member 60 is arranged so that the tip portion on the upstream side in the air flowing direction is located in the position retracted to the downstream side of the air flowing direction with respect to the edge of the suction port 42 positioned below the tip portion. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a showcase.

  Conventionally, as shown in FIG. 4, for example, a showcase includes a main body cabinet 2 in which a product display case 1 is configured. The main body cabinet 2 is configured in a box shape having an opening 2a on the upper surface. The merchandise display case 1 is for displaying merchandise. The merchandise display case 1 is configured in a box shape having an open top surface by appropriately supporting a bottom plate 1 a and a pair of case side plates 1 b on the side wall of the main body cabinet 2. An air circulation duct 3 is formed between the product display case 1 and the main body cabinet 2. An air outlet 4 of the air circulation duct 3 is formed between one case side plate 1 b of the product display case 1 and the upper wall of the main body cabinet 2, while the other case side plate 1 b of the product display case 1 is formed. A suction port 5 of the air circulation duct 3 is formed between the upper wall of the main body cabinet 2.

  A blower fan 6 and a cooling means 7 are provided inside the air circulation duct 3. When driven, the blower fan 6 sends air from the suction port 5 side to the blowout port 4 side inside the air circulation duct 3. The cooling means 7 cools the air sent out by the blower fan 6 toward the outlet 4 inside the air circulation duct 3 when driven.

  In this showcase, when the blower fan 6 and the cooling means 7 are driven, the air cooled and dehumidified by the cooling means 7 is blown out from the blowout port 4 toward the suction port 5 to form an air curtain. Thereafter, the air sucked from the suction port 5 is sent out to the air outlet 4 again while being cooled and dehumidified through the air circulation duct 3. Therefore, the inside of the product display case 1 (hereinafter referred to as “product storage area 1c”) can be cooled by the air curtain described above.

  In the showcase, as shown in FIG. 4, a guard portion 8 is formed by bending the upper end portion of the other case side plate 1 b in the product display case 1, and the guard portion 8 is formed in the suction port 5. It is arranged in a manner to face. The guard portion 8 is a portion formed by bending the upper end portion of the other case side plate 1b so as to be gradually inclined downward toward the side wall of the opposing main body cabinet 2 and then bending and extending upward. . In the guard portion 8, a number of suction holes (not shown) are formed, and a heater 9 is provided at a portion facing the inside of the air circulation duct 3.

  In the conventional showcase, by arranging the guard portion 8 of the other case side plate 1b so as to face the suction port 5, the air flow from the suction port 5 to the air circulation duct 3 is allowed while the product is in the suction port. The situation of passing through 5 and falling down inside the air circulation duct 3 is prevented. By the way, when the drive of the ventilation fan 6 and the cooling means 7 is continued as mentioned above, dew condensation water will adhere to the guard part 8 soon, and the dew condensation water which adhered may become frost. Therefore, in the conventional showcase, a large number of suction holes (not shown) are formed in the guard part 8, and the guard part 8 is bent toward the side wall of the opposing main body cabinet 2 to form dew condensation. Water or frost melted by driving the heater 9 is prevented from falling into the product storage area 1c (see, for example, Patent Document 1).

JP 2002-188880 A

  However, in the conventional showcase, the portion of the guard portion 8 located closest to the outlet 4 is disposed at the upper end portion of the other case side plate 1b. Therefore, in the portion of the guard portion 8 that is located closest to the air outlet 4, the condensed water adhering to a portion other than a large number of suction holes (not shown) extends along the surface of the other case side plate 1 b to the lower part of the product storage area 1 c. There is a risk of reaching. Therefore, there is a possibility that the dew condensation water reaching the lower part of the product storage area 1c may adhere to the displayed product, which may lead to a reduction in the purchasing power of the product.

  An object of this invention is to provide the showcase which can prevent reliably the situation where the dew condensation water and frost which adhered to the guard member reach a goods storage area in view of the said situation.

  In order to achieve the above object, a showcase according to claim 1 of the present invention has a product storage area for displaying a product defined therein, and the product storage area communicates with the outside. A product display case having a portion formed therein, and an air circulation duct having a suction port formed in an opening of the product display case in a mode opposed to the air outlet for blowing out cooled air, and the air outlet In the showcase that distributes the cooled air from the suction port to the suction port, the guard member includes a plate-like guard member that is disposed inside the air circulation duct and prevents a product from passing through the suction port. Is arranged such that the front end on the upstream side in the air flow direction is retracted to the downstream side in the air flow direction with respect to the edge of the suction port located below the front end. It is characterized by being That.

  In order to achieve the above object, the showcase according to claim 2 of the present invention is the above-described showcase according to claim 1, wherein the guard member gradually lowers from the tip portion toward the downstream side in the air flow direction. It is arranged in an inclined manner.

  In order to achieve the above object, a showcase according to claim 3 of the present invention is the above-described showcase according to claim 1, wherein the guard member includes a plurality of plate-like members arranged in parallel with each other with a space therebetween. The front end of the plate-like member that is upstream in the air flow direction is retracted to the downstream side in the air flow direction with respect to the edge of the suction port located below the front end. It is characterized by being arranged at each position.

  The showcase according to the present invention is such that the guard member has a front end portion on the upstream side in the air flow direction, and a downstream side in the air flow direction with respect to the edge of the suction port located below the front end portion. Are arranged at positions where a predetermined interval is secured. For this reason, the front end portion on the upstream side in the air flow direction of the guard member is arranged on the inner side of the air flow duct with respect to the edge portion of the suction port located below the front end portion. Even if condensed water or frost adheres to the guard member, it is possible to reliably prevent the condensed water or frost from reaching the product storage area. Therefore, there is no possibility that condensed water or frost adheres to the displayed product, and there is no possibility that the purchasing power of the product will be reduced.

  Hereinafter, preferred embodiments of a showcase according to the present invention will be described in detail with reference to the accompanying drawings.

  1 is a cross-sectional side view showing a showcase according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the suction port shown in FIG. 1 viewed from the inside of the showcase, and FIG. FIG. As shown in FIG. 1, the showcase 10 illustrated here is a flat type showcase having an opening on the upper surface, and is for selling products stored inside in a cooled state.

  As shown in FIG. 1, the showcase 10 includes a main body cabinet 20. The main body cabinet 20 is a substantially rectangular heat insulating casing having an opening 21 having a rectangular shape on the upper surface, and a product display case 30 is formed therein.

  As shown in FIGS. 1 and 2, the commodity display case 30 is a box-like shape whose upper surface is opened by appropriately supporting a bottom plate 33 and a pair of case side plates 32, 32 on the side walls 22 of the main body cabinet 20 facing each other. It is configured. Inside the product display case 30, a product storage area 31 for displaying products is defined. As is clear from FIG. 1, the commodity display case 30 has a pair of case side plates 32 and 32 facing each other arranged in the vertically lower area of the facing edge of the opening 21 in the main body cabinet 20 in FIG. 1. It is possible to visually recognize the entire product storage area 31 from the outside (above) through the opening 21. In the following description, one case side plate 32 on the right side in FIG. 1 is referred to as a “first case side plate 32a”, and the other case side plate 32 on the left side in FIG. 1 is referred to as a “second case side plate 32b”.

  As shown in FIGS. 1 and 2, an air circulation duct 40 is formed between the main body cabinet 20 and the commodity display case 30. The air distribution duct 40 has a space between the side wall 22 of the main body cabinet 20 and the pair of case side plates 32, 32 of the product display case 30, and between the bottom wall 23 of the main body cabinet 20 and the bottom plate 33 of the product display case 30. Are formed in a substantially U-shape (see FIG. 1) in such a manner as to communicate with each other. Further, one end of the air circulation duct 40 includes an upper end portion of the first case side plate 32a in the commodity display case 30, and an end portion of the upper wall 24 in the main body cabinet 20 disposed in a vertically upper region of the upper end portion. The air outlet 41 is formed in communication with the space between the two. On the other hand, the other end portion of the air circulation duct 40 includes an upper end portion of the second case side plate 32b in the product display case 30, and an end portion of the upper wall 24 in the main body cabinet 20 disposed in a vertically upper region of the upper end portion. A suction port 42 is formed in communication with the space between the two. As is clear from FIG. 1, the air outlet 41 and the inlet 42 in the air circulation duct 40 are formed so as to face each other.

  In addition, as shown in FIG. 1, a blower fan 43 and a cooling unit 44 are disposed inside the air circulation duct 40. The blower fan 43 sends air from the suction port 42 side to the blower outlet 41 side inside the air circulation duct 40 when it is rotationally driven. The blower fan 43 is disposed in a portion between the bottom wall 23 of the main body cabinet 20 and the bottom plate 33 of the product display case 30 in the air circulation duct 40. The cooling means 44 includes, for example, a compressor, a condenser, an expansion valve, and an evaporator, constitutes a refrigeration cycle that circulates a refrigerant therebetween, and cools ambient air with the evaporator. This cooling means 44 is disposed adjacent to the blower fan 43 in the air circulation duct 40, and when driven, the blower fan 43 is on the outlet 41 side (right side in FIG. 1) inside the air circulation duct 40. The air sent to the air will be cooled. Further, although not clearly shown in the drawing, a heater adjacent to the cooling means 44 in the air circulation duct 40 has a heater for heating the surrounding air and defrosting the cooling means 44 when driven. It is arranged.

  Further, as shown in FIG. 1, a guide member 50 is disposed in the vicinity of the air outlet 41 and a guard member 60 is disposed in the vicinity of the suction port 42 inside the air circulation duct 40. .

  The guide member 50 is for guiding the air passing through the air outlet 41 in the air circulation duct 40 toward the air inlet 42 and preventing the product from passing through the air outlet 41. In the embodiment, it is composed of three plate-like members 51. The plate-like member 51 is a plate-like member having a longitudinal shape, and is supported in a state in which the both ends are supported on the side walls 22 of the main body cabinet 20 on which the product display case 30 is supported, with a space between each other. Are arranged in the vertical direction. In the present embodiment, the plate-like member 51 extends in a substantially horizontal direction from the upper end portion of the vertical portion 51a to the suction port 42. The vertical portion 51a is arranged in a manner extending along the substantially vertical direction. Each having a horizontal portion 51b. Further, as is apparent from FIG. 1, the extending end portion (the end portion on the suction port 42 side) of the horizontal portion 51 b in the plate-like member 51 is located in the vertically upper area of the first case side plate 32 a in the product display case 30. It is arranged.

  The guard member 60 is for guiding the air passing through the suction port 42 downward in the air circulation duct 40 and preventing the product from passing through the suction port 42. 3) plate-like members 61. As shown in FIG. 2, the plate-like member 61 is a plate-like member having a longitudinal shape, and the side walls 22 of the main body cabinet 20 on which the product display case 30 is supported are supported by the both end portions thereof. They are arranged side by side in the vertical direction with each space secured.

  In the present embodiment, as shown in FIG. 3, the plate-like member 61 is arranged in such a manner that the plate-like member 61 is gradually inclined downward toward the side wall 22 side (left side in FIG. 3) of the main body cabinet 20. A first inclined portion 61a, and a second inclined portion 61b extending further downwardly from the one end portion (side wall 22 side end) of the first inclined portion 61a toward the side wall 22 side (left side in FIG. 3) of the main body cabinet 20. Respectively. As is clear from FIG. 3, the starting end portion (end portion on the air outlet 41 side) of the first inclined portion 61 a in the plate-like member 61 is a main body cabinet with respect to the second case side plate 32 b in the product display case 30. 20 are arranged at positions where a predetermined distance d is secured on the side wall 22 side (left side in FIG. 3). Specifically, the interval d is set to a size that can prevent the product displayed in the product storage area 31 from passing.

  In the showcase 10 configured as described above, when the blower fan 43 and the cooling unit 44 are driven, the air sent out by the blower fan 43 passes around the cooling unit 44 as indicated by the arrows in FIG. It will be cooled and dehumidified. Then, the air cooled and dehumidified by the cooling means 44 is blown out toward the inlet 42 through the outlet 41 of the air circulation duct 40 to form an air curtain. Thereafter, the air sucked from the suction port 42 of the air circulation duct 40 is sent out again to the air outlet 41 while being cooled and dehumidified by the cooling means 44 as indicated by the arrows in FIG. Therefore, the inside of the product display case 30 can be cooled by the air circulated through the air curtain and the air circulation duct 40 described above, whereby the product displayed in the product storage area 31 can be cooled.

  During this time, the air passing through the air outlet 41 of the air circulation duct 40 passes while being guided toward the suction port 42 between the plate-like members 51 of the guide member 50. On the other hand, the air passing through the suction port 42 of the air circulation duct 40 passes while being guided downward between the plate-like members 61 of the guard member 60. Therefore, smooth circulation of air circulating between the air curtain and the air circulation duct 40 described above can be achieved. Accordingly, the product temperature in the product storage area 31 can be stabilized.

  Further, in the showcase 10 configured as described above, the extending end portion (the end portion on the suction port 42 side) of the horizontal portion 51b of the plate-like member 51 in the guide member 50 is the first case side plate 32a in the product display case 30. They are arranged in the vertical upper area. Therefore, it is possible to prevent the product displayed in the product storage area 31 from passing through the air outlet 41, and there is no possibility that the product falls inside the air circulation duct 40. On the other hand, the starting end portion (end portion on the air outlet 41 side) of the first inclined portion 61 a of the plate-like member 61 in the guard member 60 is on the side wall 22 side of the main body cabinet 20 with respect to the second case side plate 32 b in the product display case 30. (Left side in FIG. 3) are arranged at positions where a predetermined distance d is secured. Therefore, it is possible to prevent the product displayed in the product storage area 31 from passing through the suction port 42, and there is no possibility that the product falls inside the air circulation duct 40.

  By the way, if the driving of the blower fan 43 and the cooling unit 44 is continued as described above, the condensed water may eventually adhere to the plate-like member 61 of the guard member 60. If the condensed water adhering to the plate-like member 61 falls into the product storage area 31 of the product display case 30 as described above, there is a risk that the condensed water will adhere to the displayed product, thereby causing a reduction in the purchasing power of the product. There is a fear. Moreover, the condensed water adhering to the plate-shaped member 61 may become frost. In this way, when the frost attached to the plate-like member 61 is defrosted by driving a heater (not shown), there is a possibility that the frost falls to the product storage area 31 of the product display case 30 and adheres to the displayed product. This may lead to a reduction in the purchasing power of the product.

  Therefore, in the showcase 10 configured as described above, in the first inclined portion of the plate-like member 61 in the guard member 60, the tip end portion (the end portion on the air outlet 41 side) which is the upstream side in the air flow direction is sucked. With respect to the edge portion of the mouth 42 (the upper end portion of the second case side plate 32b), it is disposed at a position where a predetermined distance d is secured on the downstream side in the air flow direction, that is, at a retracted position. For this reason, in the 1st inclination part 61a of the plate-shaped member 61, the front-end | tip part used as the upstream of the distribution direction of air will be arrange | positioned inside the air circulation duct 40, and dew condensation on the plate-shaped member 61 is carried out. Even if water or frost adheres, it is possible to prevent the condensed water or frost from falling into the product storage area 31 of the product display case 30. Therefore, there is no possibility that condensed water or frost adheres to the displayed product, and there is no possibility that the purchasing power of the product will be reduced.

  Furthermore, in the showcase 10 configured as described above, the first inclined portion 61a moves from the front end portion (end portion on the outlet 41 side) on the upstream side in the air flow direction toward the downstream side in the air flow direction. The plate-like member 61 of the guard member 60 is disposed in such a manner that it gradually tilts downward. Therefore, even if condensed water or frost adheres to the first inclined portion 61a of the plate-like member 61, the condensed water or frost flows along the surface of the first inclined portion 61a on the side wall 22 side (in FIG. 3). Easier to move to the left). Therefore, it is possible to more reliably prevent the condensed water and frost attached to the plate-like member 61 from dropping into the product storage area 31 of the product display case 30.

  In the present embodiment, the guard member 60 constituted by a plurality of plate-like members 61 is illustrated, but it is not necessarily constituted by a plurality of plate-like members 61, and a single plate-like member is a guard member. You may comprise as.

  Further, in the present embodiment, the plate-like member 61 of the guard member 60 is arranged in such a manner that the first inclined portion 61a gradually extends downward toward the side wall 22 side (left side in FIG. 3) of the main body cabinet 20. However, the plate-like member 61 of the guard member 60 does not necessarily have to be disposed in such a manner that the first inclined portion 61a gradually and downwardly extends toward the side wall 22 side of the main body cabinet 20. For example, the plate-like member 61 of the guard member 60 may be disposed in such a manner that the first inclined portion 61a extends substantially horizontally. In this case, you may comprise the 2nd inclination part 61b so that it may extend along the substantially perpendicular | vertical from the one end part (side wall 22 side edge part) of the 1st inclination part 61a of the plate-shaped member 61. FIG.

  It is useful for a flat-type showcase having an opening on the upper surface, and is particularly suitable for a showcase that takes into consideration the prevention of condensation water and frost attached to the guard member from falling into the product storage area.

It is a section side view showing the showcase which is an embodiment of the invention. It is sectional drawing which looked at the suction inlet shown in FIG. 1 from the inside of a showcase. It is the A section detailed drawing in FIG. It is a cross-sectional side view which shows the conventional showcase.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Showcase 20 Main body cabinet 30 Commodity display case 31 Commodity storage area 32 Case side plate 32a 1st case side plate 32b 2nd case side plate 33 Bottom plate 40 Air distribution duct 41 Outlet 42 Suction port 43 Blower fan 44 Cooling means 50 Guide member 60 Guard Member 61 plate-like member 61a first inclined portion 61b second inclined portion

Claims (3)

A product display case in which a product storage area for displaying products is defined inside, and an opening is formed in a manner to communicate the product storage area with the outside;
In an aspect facing the air outlet for blowing out cooled air, the air circulation duct having an air inlet formed in the opening of the product display case,
In the showcase for circulating the cooled air from the outlet to the inlet,
A plate-like guard member that is disposed inside the air circulation duct and prevents a product from passing through the suction port;
The guard member is
The front end portion on the upstream side in the air flow direction is disposed at a position retracted to the downstream side in the air flow direction with respect to the edge of the suction port located below the front end portion. Showcase that features.   2. The showcase according to claim 1, wherein the guard member is disposed in such a manner that the guard member is gradually inclined downward from the tip portion toward the downstream side in the air flow direction. The guard member is configured by arranging a plurality of plate-like members side by side in a state in which a space is secured between each other,
The front end of the plate-like member on the upstream side in the air flow direction is retracted to the downstream side in the air flow direction with respect to the edge of the suction port located below the front end. The showcase according to claim 1, wherein the showcase is arranged.

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