JP2016026526A - Show case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a show case that has achieved improvement of cooling efficiency without decreasing the number of stored articles.SOLUTION: A show case includes a case body having a front opening 10a and a storage chamber 11 formed in a configuration to face the front opening 10a, article placement shelves 12 provided in the storage chamber 11 for placing articles, air circulation means for sucking air through a suction port 16 and circulating the air between the inside and the outside of the storage chamber 11, and a vaporizer 51 for adjusting the air circulated by the air circulation means to a predetermined temperature. The air circulation means branches the air cooled by the vaporizer 51 into two above the storage chamber 11, and causes one flow of the air to blow out from an air outlet 17 and the other flow of the air to blow out from a plurality of pores 15 formed on a back panel.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a showcase, and more particularly to a showcase in which a product to be stored is held at a desired temperature state.

  Conventionally, Patent Document 1 proposes a showcase that holds a product to be stored in a desired temperature state. In the showcase proposed in this Patent Document 1, a plurality of product placement shelves are provided in a vertical direction in a storage chamber of a case main body having an opening formed on the front surface, Goods are placed on the shelf. In addition, a passage for the air in the storage chamber sucked through a suction port provided in the lower front portion of the storage chamber is formed in a portion inside the case body and outside the storage chamber, and air on the back side of the storage chamber is formed. An evaporator is disposed in the passage. The air passing through such an air passage is cooled by an evaporator and then blown out from a blow-out port provided at the upper front portion of the storage chamber. The air blown out from the outlet is sucked into the suction port and circulates through the air passage so that the air inside the storage chamber is cooled and the product placed on the product placement shelf is adjusted to a desired temperature. Retained.

JP 2000-102458 A

  By the way, in the showcase proposed in Patent Document 1 described above, the air inside the storage chamber is sucked through the suction port and allowed to pass through the air passage, and cooled by the evaporator while passing through the air passage to be cooled. Since the product placed on the product placement shelf is cooled by blowing air (cold air) into the storage room through the air, the product is cooled by the air blown from the outlet and sucked into the suction port. . For this reason, the product on the front side of the product placement shelf is cooled relatively quickly, but the product on the rear side of the product placement shelf is not easily cooled unless the internal air of the entire storage room is sufficiently cooled. As a result, it could not be said that the cooling efficiency was excellent.

  An object of this invention is to provide the showcase which can aim at the improvement of cooling efficiency in view of the said situation.

  In order to achieve the above object, a showcase according to the present invention includes a case main body having an opening formed in a front surface and having a storage chamber defined in a manner facing the opening, and the storage chamber along the vertical direction. A plurality of stages and a product placement shelf for placing a product to be stored, and an air inlet through a suction port provided in a lower front portion of the storage chamber, thereby the interior of the storage chamber in the case body An air circulating means for circulating air between the air and the outside, and a temperature adjusting means for adjusting the air circulated by the air circulating means to a predetermined temperature, and the product placed on the product placing shelf In the showcase maintained at a desired temperature state, the air circulation means branches the air adjusted to a predetermined temperature by the temperature adjusting means into two above the storage chamber, and One of the air branched from the air outlet provided in the upper part is blown out, while the other air branched from a plurality of holes formed in the back panel defining the storage chamber is blown out. And

  In the showcase according to the present invention, the air circulation means may be configured such that the air sucked through the suction port or another suction port different from the suction port maintains the temperature state of the air outlet or the air outlet. An auxiliary air passage is provided for blowing from another air outlet different from the air outlet.

  Further, the present invention provides the showcase, wherein the air adjusted to a predetermined temperature by the temperature adjusting means is arranged to be openable and closable in an air passage that flows toward the air outlet, and is directed to the air outlet through the air passage. A first blowing amount adjusting mechanism that adjusts the amount of air flowing through, and a second blowing amount adjusting mechanism that is disposed in each of the holes so as to be openable and closable and adjusts the amount of air blown through the holes. It is characterized by that.

  Moreover, the present invention is characterized in that, in the showcase, the temperature adjusting means is disposed in an upper region of the case body than the storage chamber.

  In the showcase described above, the air circulation means closes the back-side air air passage formed on the rear side of the back panel and the back-side air air passage so as to communicate with the hole. And a resistance member that allows air to pass through a passage hole formed in itself.

  According to the present invention, the air circulation means divides the air adjusted to a predetermined temperature by the temperature adjusting means into two above the storage chamber and blows out one of the air branched from the outlet, Since the other air branched from the plurality of holes is blown out, the product on the front side of the product placement shelf can be adjusted to a desired temperature with the air blown from the blowout port, and the product placement shelf The product on the rear side can be adjusted to a desired temperature with the air blown out from the hole, thereby producing an effect that the cooling efficiency can be improved.

FIG. 1 is a cross-sectional side view schematically showing the internal structure of a showcase according to an embodiment of the present invention. 2 is a cross-sectional view of the main part of the showcase shown in FIG. 3 is a cross-sectional side view for explaining air circulation in the showcase shown in FIG. 4 is a cross-sectional side view for explaining air circulation in the showcase shown in FIG. FIG. 5 is a cross-sectional side view schematically showing the internal structure of a modified example of the showcase according to the embodiment of the present invention. 6 is a cross-sectional view of a main part of the showcase shown in FIG. FIG. 7 is a cross-sectional side view schematically showing the internal structure of another modification of the showcase according to the embodiment of the present invention. FIG. 8 is a cross-sectional side view schematically showing the internal structure of another modification of the showcase according to the embodiment of the present invention. FIG. 9 is a cross-sectional side view schematically showing the internal structure of another modification of the showcase according to the embodiment of the present invention. FIG. 10 is a plan view of the resistance plate shown in FIG.

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

  FIG. 1 is a cross-sectional side view schematically showing the internal structure of a showcase according to an embodiment of the present invention. The showcase illustrated here includes a case body 10.

  The case main body 10 is a heat insulating housing having an opening 10a (hereinafter also referred to as a front opening) formed on the front surface. The case body 10 has a storage chamber 11 defined therein, and is provided with an air circulation means 20, a first blowing amount adjusting mechanism 30, and a second blowing amount adjusting mechanism 40.

  The storage chamber 11 is a chamber defined in a manner facing the front opening 10a, and a plurality (five in the illustrated example) of product placement shelves 12 are arranged side by side along the vertical direction. The merchandise placement shelf 12 is for placing merchandise. A deck pan 13 is disposed at the bottom of the storage chamber 11. The deck pan 13 is for placing a product in the same manner as the product placement shelf 12.

  A plurality of holes 15 are formed in the back panel 14 that defines the storage chamber 11. These hole portions 15 are through holes formed at predetermined intervals along the left-right direction at a plurality of height levels. If it demonstrates in detail, the hole 15 will be formed in the lower part of each goods mounting shelf 12 for every predetermined space | interval along the left-right direction.

  Further, a suction port 16 is formed in the lower front portion of the storage chamber 11, and an air outlet 17 is formed in the upper front portion of the storage chamber 11.

  The suction port 16 is an opening for sucking air inside the storage chamber 11 and extends along the left-right direction of the storage chamber 11. The blower outlet 17 has a front blower outlet 17 a and a rear blower outlet 17 b, and is an opening for blowing air into the storage chamber 11. Each of these air outlets 17 extends in the left-right direction of the storage chamber 11. For example, a rectifying member having a honeycomb structure is attached to these air outlets 17.

  The air circulation means 20 includes an air air passage 20a and a circulation fan F. The air air passage 20 a is an air air passage extending from the suction port 16 to the air outlet 17 and each hole 15.

  Such an air air passage 20a includes a lower air air passage 21 outside and below the storage chamber 11, a first back air air passage 22 outside the storage chamber 11 and on the back side, It is comprised in the aspect which mutually connected the upper side air wind path 23 outside the storage chamber 11 and thereabove.

  Further, the air air passage 20a is divided into two upper air air passages 23, and an upper outer air passage (auxiliary air passage) 23a communicates with the front air outlet 17a. Further, the inner air passage 23b on the lower side is branched into two at a halfway branch point P, one leading to the rear air outlet 17b, and the other to the second back side air air passage 24. Communicates.

  As shown in FIG. 2, the second back side air air passage 24 extends along the vertical direction on the back side of the storage chamber 11. The second back-side air air passage 24 extends on the front side of the first back-side air air passage 22 and is partitioned from the first back-side air air passage 22. The second back side air air passage 24 communicates with each hole 15 provided in the back panel 14 and constitutes the air air passage 20a.

  The circulation fan F is driven by a command given from a control means (not shown) to circulate the air, and is arranged at a predetermined portion of the lower air air passage 21. In the present embodiment, the circulation fan F is disposed at a predetermined portion of the lower air air passage 21. However, in the present invention, the position of the circulation fan F is not particularly limited and will be described later. It may be disposed anywhere as long as the function of the circulation fan F can be exhibited.

  In such an air circulation means 20, the circulation fan F is driven to suck air (internal air) inside the storage chamber 11 through the suction port 16, and the sucked air passes through the air air passage 20 a. The air is sent to each outlet 17 and each hole 15, and the air sent through each outlet 17 and each hole 15 is blown into the storage chamber 11, whereby the air is transferred between the inside and the outside of the storage chamber 11. Circulate.

  An evaporator (temperature adjusting means) 51 is provided in the inner air passage 23b of the air air passage 20a. That is, the evaporator 51 is disposed in the case body 10 above the storage chamber 11. The evaporator 51 constitutes a refrigerant circulation means for circulating the refrigerant together with the compressor 52, the condenser 53 and the expansion mechanism 54. Here, the compressor 52 is driven by a command given from the control means, and compresses the refrigerant. The condenser 53 condenses the refrigerant compressed by the compressor 52. The expansion mechanism 54 adiabatically expands the refrigerant condensed in the condenser 53 to bring it into a low temperature and low pressure state.

  The evaporator 51 exchanges heat between the air passing through the inner air passage 23b from the rear to the front by the circulation fan F and the refrigerant adiabatically expanded by the expansion mechanism 54, more specifically. The air passing through the inner air passage 23b is cooled by evaporating the refrigerant. The refrigerant evaporated in the evaporator 51 returns to the compressor 52 and is compressed again.

  The 1st blowing amount adjustment mechanism 30 is provided in the air path from the said branch point P to the back side blower outlet 17b in the inward air path 23b. This first blowing amount adjusting mechanism 30 is constituted by a damper, for example, and adjusts the opening ratio of its own passing port according to a command given from the control means, and thereby toward the rear outlet 17b through the air passage. The amount of flowing air is adjusted. That is, the 1st blowing amount adjustment mechanism 30 adjusts the air quantity which blows off from the rear side outlet 17b.

  A plurality of second blowing amount adjusting mechanisms 40 are provided, and are provided for each height level of the hole 15. The second blowing amount adjusting mechanism 40 is constituted by, for example, a damper, and is blown out from each hole portion 15 at a corresponding height level by adjusting the opening ratio of its own passage according to a command given from the control means. It adjusts the air volume.

  In the showcase having the above-described configuration, the circulation fan F and the compressor in a state where the passage ports of the first blowing amount adjusting mechanism 30 and the second blowing amount adjusting mechanism 40 are opened in accordance with a command given from the control means. When 52 is driven, the product placed on the product placement shelf 12 is cooled as follows.

  As shown in FIG. 3, the air inside the storage chamber 11 is sucked in through the suction port 16, passes through the lower air air passage 21 and the first back air air passage 22, and passes outside in the upper air air passage 23. The vehicle enters either the wind path 23a or the inner wind path 23b.

  The air that has entered the outer air passage 23a reaches the front air outlet 17a and is blown out from the front air outlet 17a. On the other hand, the air that has entered the inward air passage 23 b passes through the evaporator 51 and is cooled. The air cooled by the evaporator 51 is branched into two at a branch point P, and one air reaches the rear outlet 17b and is blown out from the rear outlet 17b. Further, the other air branched at the branch point P reaches the second back side air air passage 24 and is blown out from each hole 15 at each height level.

  Most of the air blown out from the air outlet 17 (the front air outlet 17a and the rear air outlet 17b) flows toward the suction port 16 to form an air curtain. By forming the air curtain in this way, the internal air of the storage chamber 11 is cooled while suppressing the entry of heat from the outside.

  Moreover, the air blown out from each hole 15 flows from the rear to the front in the upper area of the product placement shelf 12 and the deck pan 13, and then joins the air curtain. In this way, the internal air on the rear side of the storage chamber 11 is cooled by flowing from the rear to the front in the upper area of the product placement shelf 12 and the deck pan 13.

  By cooling the internal air of the storage chamber 11 in this manner, the products placed on each product placement shelf 12 can be cooled as a result.

  Moreover, in the showcase, the product placed on the product placement shelf 12 can be cooled as follows.

  The passage from the branch point P to the rear outlet 17b is closed by closing the passage of the first outlet adjustment mechanism 30 according to a command given from the control means. In addition, according to a command given from the control means, the passage opening of the second blowing amount adjustment mechanism 40 located below the second stage product placement shelf 12 from the bottom is opened, and the product placement shelf 12 is located above the product placement shelf 12. The passage opening of the second blowing amount adjusting mechanism 40 on the side is closed. That is, only the hole 15 on the lower side of the product placing shelf 12 in the second stage from the bottom is opened.

  Then, as shown in FIG. 4, the air inside the storage chamber 11 is sucked through the suction port 16, passes through the lower air air passage 21 and the first back air air passage 22, and the upper air air passage 23. The vehicle enters either the outer air passage 23a or the inner air passage 23b.

  The air that has entered the outer air passage 23a reaches the front air outlet 17a and is blown out from the front air outlet 17a. On the other hand, the air that has entered the inward air passage 23 b passes through the evaporator 51 and is cooled. The air cooled by the evaporator 51 reaches the second back-side air air passage 24 and is blown out from the respective holes 15 below the second product stacking shelf 12 from the bottom.

  Most of the air blown out from the air outlet 17 (front air outlet 17a) flows toward the air inlet 16 to form an air curtain. By forming the air curtain in this manner, the air inside the storage chamber 11 is slightly cooled by the air while suppressing the entry of heat from the outside.

  Moreover, the air blown out from the hole 15 to be opened flows from the rear to the front in the upper region of the lowest product placing shelf 12 and the deck pan 13, and then joins the air curtain. In this way, the internal air in the upper region of the lowest product placement shelf 12 and the deck pan 13 is cooled by flowing from the rear to the front in the upper region of the lowest product placement shelf 12 and the deck pan 13.

  In this way, by cooling the internal air in the upper region of the lowest product placing shelf 12 and the deck pan 13, the region surrounded by the two-dot chain line in FIG. 4 can be locally cooled. . Thereby, the product placed on the lowest product placing shelf 12 and the deck pan 13 can be cooled to a temperature lower than that of the product placed on the other product placing shelf 12. Therefore, in the showcase, the product can be cooled by dividing the temperature of the storage chamber 11 into at least two temperature zones.

  As described above, according to the showcase according to the embodiment of the present invention, the air cooled by the evaporator 51 is blown out from the blowout port 17 and blown out from the plurality of holes 15 of the back panel 14. Therefore, the product on the front side of the product placement shelf 12 can be cooled by the air blown from the blowout port 17, and the product on the rear side of the product placement shelf 12 can be cooled by the air blown from the hole 15. It can cool and can aim at improvement in cooling efficiency.

  Further, according to the above showcase, the evaporator 51 is disposed above the storage chamber 11 in the case body 10, so that when the evaporator is disposed on the back side of the storage chamber as in the conventional case. In comparison, the front and rear lengths of the storage chamber 11 can be secured sufficiently, and the height dimension of the storage chamber 11 does not need to be reduced, so there is no possibility of causing a reduction in the number of stored products.

  In addition, according to the showcase, the air blown out from each hole 15 flows downward along the wall surface of the storage chamber 11 after being cooled by the evaporator 51, so that the amount of air blown from the circulation fan F Even if it does not increase, it can circulate favorably.

  Further, according to the above showcase, a part of the air sucked through the suction port 16 by branching the upper air air passage 23 and providing the outer air passage 23a is substantially maintained while maintaining the temperature state thereof. Since the air is blown out from the outlet 17a, the cool air around the suction port 16 can be effectively used to prevent the heat from entering the storage chamber 11, and the internal air of the storage chamber 11 can be cooled well.

  Further, according to the showcase, the first blowing amount adjusting mechanism 30 adjusts the amount of air blown from the rear outlet 17b, and the second blowing amount adjusting mechanism 40 blows air from each hole 15. Since the amount is adjusted, the inside of the storage chamber 11 can be locally cooled, and the storage chamber 11 can be cooled in a plurality of temperature zones.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to this, and various modifications can be made.

  As shown in FIGS. 5 and 6, the first back side air air passage 22 communicates with the inward air passage 23 b, and left and right sides of the first back side air air passage 22 and the second back side air air passage 24. The 3rd back side air wind path 25 may be provided in the both sides area. The third back side air air passage 25 communicates with the lower air air passage 21 through the introduction port 251 and also communicates with the outer air passage 23 a through the outlet port 252.

  In such a configuration, the air inside the storage chamber 11 is sucked through the suction port 16, passes through the lower air air passage 21, partially passes through the first back air air passage 22, and the rest A part passes through the third back side air air passage 25 through the inlet 251. The air passing through the third back side air air passage 25 enters the outer air passage 23a, reaches the front air outlet 17a, and is blown out from the front air outlet 17a. On the other hand, the air passing through the first back side air air passage 22 enters the inward air passage 23b. The air that has entered the inward air passage 23b passes through the evaporator 51 and is cooled. The air cooled by the evaporator 51 is branched into two at a branch point P, and one air reaches the rear outlet 17b and is blown out from the rear outlet 17b. Further, the other air branched at the branch point P reaches the second back side air air passage 24 and is blown out from each hole 15 at each height level.

  And most of the air blown out from the air outlet 17 (the front air outlet 17a and the rear air outlet 17b) flows toward the suction port 16 to form an air curtain. By forming the air curtain in this way, the internal air of the storage chamber 11 is cooled while suppressing the entry of heat from the outside. Moreover, the air blown out from each hole 15 flows from the rear to the front in the upper area of the product placement shelf 12 and the deck pan 13, and then joins the air curtain. In this way, the internal air on the rear side of the storage chamber 11 is cooled by flowing from the rear to the front in the upper area of the product placement shelf 12 and the deck pan 13. By cooling the internal air of the storage chamber 11 in this manner, the products placed on each product placement shelf 12 can be cooled as a result.

  According to the showcase having such a configuration, the third back side air air passage 25 is provided in the left and right side regions of the first back side air air passage 22 and the second back side air air passage 24. The front-rear dimension of the back portion of the storage chamber 11 in the main body 10 can be suppressed from becoming excessive.

  In the embodiment described above, the upper air air passage 23 is branched to form the outer air passage 23a and the inner air passage 23b. However, in the present invention, as shown in FIG. Only the passage 23 b may constitute the upper air passage 23.

  In the above-described embodiment, air is blown into the storage chamber 11 from each hole 15 provided in the back panel 14, but in the present invention, as shown in FIG. Each hole 15 communicates with a shelf duct 12a provided at the lower part of the corresponding product placement shelf 12, and the air blown out from the hole 15 passes through the corresponding shelf duct 12a and passes through the shelf duct 12a. You may make it blow off to the storage chamber 11 from the front opening of 12a.

  In the embodiment described above, the first blow amount adjustment mechanism 30 and the second blow amount adjustment mechanism 40 are controlled by the control means, but in the present invention, they are manually controlled. May be. In the present invention, an adjustment member is provided that can adjust the air volume flowing toward the rear outlet 17b and the air volume flowing toward the second rear air path 24 at the branch point P. It may be done.

  In the above-described embodiment, the air that passes through the inner passage and is cooled by the evaporator 51 and the air that passes through the outer passage are sucked from the common suction port 16. The air passage leading to the outer passage and the air passage leading to the inner passage may be completely separated from each other by providing a suction port.

  In the embodiment described above, the first blow amount adjustment mechanism 30 and the second blow amount adjustment mechanism 40 are each constituted by a damper. However, the present invention is not limited to such a configuration, and the blow amount is adjusted. The configuration is not particularly limited as long as the adjustment can be performed. In the present invention, the first blowout amount adjustment mechanism 30 may not be provided.

  In the embodiment described above, the evaporator 51 is disposed above the storage chamber 11, and the compressor 52 and the condenser 53 constituting the evaporator 51 and the refrigerant circulation means are also above the storage chamber 11. However, in the present invention, the location of the temperature adjusting means (evaporator), the compressor, etc. is not particularly limited.

  In the present invention, as shown in FIG. 9, a resistance plate (resistance member) 60 may be provided in the middle of the second back side air air passage 24. As shown in FIG. 10, the resistance plate 60 is a plate-like member having a size sufficient to close the second back-side air air passage 24, and a plurality of passage holes 61 are formed. The resistance plate 60 allows air passing through the second back side air air passage 24 from the upper side to the lower side to pass through the passage holes 61, and reduces the air passage area to reduce the second back side. The side air air passage 24 is divided into two upper and lower parts in a pseudo manner.

  By providing such a resistance plate 60, it is possible to equalize the pressure on the second back side air air passage 24, and to the lower side of the second back side air air passage 24, the air (air cooled by the evaporator 51). ) Can be suppressed, and the amount of air blown out from each hole 15 of the back panel 14 can be made uniform.

  In FIG. 9, the resistance plate 60 is disposed at a position slightly higher than the third product placement shelf 12 from the top. However, in the present invention, the resistance plate 60 of the second back side air air passage 24 is provided. The location of the resistance plate 60 is determined by the cross-sectional area and shape, and the air volume of the air passing through the second back side air air path 24, and the number of the resistance plates 60 is not limited to one and may be plural. Further, the opening area of the passage hole 61 of the resistance plate 60 may be changed.

DESCRIPTION OF SYMBOLS 10 Case main body 10a Front opening 11 Storage room 12 Goods mounting shelf 13 Deck pan 14 Back panel 15 Hole part 16 Suction port 17 Air outlet 17a Front side air outlet 17b Rear side air outlet 20 Air circulation means 20a Air air path 21 Lower side air wind Path 22 First back side air path 23 Upper side air path 23a Outer path (auxiliary path)
23b Inner air passage 24 Second back side air air passage 30 First blowing amount adjusting mechanism 40 Second blowing amount adjusting mechanism 51 Evaporator (temperature adjusting means)
60 Resistance plate (resistance member)
61 Passage hole F Circulation fan P Branch point

Claims (5)

An opening formed on the front surface, and a case body having a storage chamber defined in a manner facing the opening;
A product placement shelf that is provided in a plurality of stages along the vertical direction in the storage room and places products to be stored;
An air circulation means for circulating air between the inside and the outside of the storage chamber in the case body by sucking air through a suction port provided in the lower front portion of the storage chamber;
A temperature adjustment means for adjusting the air circulated by the air circulation means to a predetermined temperature, and in a showcase for holding the product placed on the product placement shelf in a desired temperature state,
The air circulation means branches the air adjusted to a predetermined temperature by the temperature adjusting means into two on the upper side of the storage chamber, and branches from an air outlet provided at an upper front portion of the storage chamber. A showcase in which one air is blown out and the other air branched from a plurality of holes formed in a back panel defining the storage chamber is blown out.   The air circulation means is configured to allow the air sucked through the suction port or another suction port different from the suction port to maintain the temperature state of the air and maintain another temperature different from the blowout port or the blowout port. The showcase according to claim 1, further comprising an auxiliary air passage for blowing out from the outlet. A first air blower that is openably and closably disposed in an air passage through which air adjusted to a predetermined temperature by the temperature adjusting means flows toward the air outlet and adjusts the amount of air flowing through the air passage toward the air outlet A quantity adjustment mechanism;
3. A second blowing amount adjusting mechanism that is disposed in each of the hole portions so as to be openable and closable and that adjusts the amount of air blown through the hole portions. Showcase.   The showcase according to any one of claims 1 to 3, wherein the temperature adjusting means is disposed in a region above the storage chamber in the case body. The air circulation means includes
A back side air air passage formed on the back side of the back panel in a mode communicating with the hole;
5. A resistance member that is disposed in a manner that closes the back side air air passage and that allows air to pass through a passage hole formed in the air side air passage. 5. The showcase as described in one.

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