JP6676897B2 - Showcase - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a showcase for holding products displayed on a product display shelf at at least two temperatures.

  2. Description of the Related Art Conventionally, the following is known as a showcase for holding products displayed on a product display shelf at at least two temperatures.

  For example, a plurality of product display shelves are provided in a storage room inside a case body having a front opening formed so as to be arranged in a vertical direction, and products are placed and displayed on each of the product display shelves. . In addition, at a location inside the case body and outside the storage chamber, two air paths for the air sucked through the suction port are formed, and the air passing through one of the air paths is formed at the upper part of the storage chamber. Is blown out from the upper outlet. An evaporator for cooling the passing air is provided in the other air passage, and the air cooled by this evaporator is supplied from an intermediate outlet through an intermediate duct provided at an intermediate height position of the storage chamber. Be blown out. The air blown out from the upper outlet and the air blown out from the intermediate outlet are sucked into the inlet to form an air curtain at the front opening of the case body.

  In such a showcase, two different temperature zones are provided in the storage chamber, a range in which the temperature is adjusted by the air blown out from the upper outlet, and a range in which the temperature is adjusted by the air blown out from the intermediate outlet. The products displayed on the product display shelf in each temperature band are adjusted to a desired temperature state. More specifically, the air blown out from the intermediate air outlet cools the products displayed on the merchandise display shelves in the lower area below the intermediate duct with a low temperature zone, and heats the upper area above the intermediate duct with a high temperature. The products displayed on the product display shelves in the region as a band are adjusted to a desired temperature (for example, see Patent Document 1).

Japanese Patent No. 4636505

  By the way, in the above-mentioned showcase, since the lower region of the intermediate duct is a low temperature zone, not only the temperature but also the pressure is lower than the outside of the case main body. Therefore, the air blown out from the intermediate outlet passes through the rear side (toward the storage chamber) by a pressure difference between a lower region of the intermediate duct and the outside of the case body. If the air blown out from the intermediate outlet passes in such a manner as to be pulled rearward, the air collides with a product display shelf provided below the intermediate duct, and as a result, the lower region of the intermediate duct However, there was a possibility that the air curtain could not be formed satisfactorily, resulting in a decrease in cooling capacity.

  The present invention has been made in view of the above circumstances, and has as its object to provide a showcase that can suppress a decrease in cooling capacity in a region below an intermediate duct.

  In order to achieve the above object, a showcase according to the present invention includes a storage room formed inside a case main body, and the storage room partitioned from the storage room inside the case main body and sucked into the storage room. The internal air is cooled by cooling means provided therein and blown out into the storage chamber, whereby the air air path forming an air curtain on the front surface of the storage chamber and the air air path are cut off. The air provided in the storage chamber and cooled by the cooling means is introduced from the inlet provided at the rear end and blown out from the intermediate outlet provided at the front end, so that the air is blown to the front of the lower region of the own. An intermediate duct forming an air curtain, wherein the upper area and the lower area of the intermediate duct in the storage chamber have different temperature ranges. In the course leading to, characterized by comprising a discharge port for discharging toward a portion of the air introduced from the conductor inlet forward.

  Further, according to the present invention, in the showcase described above, the bottom portion of the intermediate duct has horizontal portions having different height levels, and the discharge port connects the horizontal portions having different height levels, and moves forward. It is characterized in that it is formed on an inclined portion which gradually inclines upward as it goes.

  Further, the present invention is characterized in that, in the showcase, the discharge port is formed by forming a plurality of holes in the inclined portion along the left-right direction.

  Further, the present invention is characterized in that, in the showcase, the intermediate duct is provided at a lower portion of an arbitrary product display shelf, and a front end portion is located behind the front end portion of the product display shelf. .

  Further, the present invention is characterized in that, in the showcase, the intermediate duct is configured such that a lower part of a front end surface constituting a front edge of the intermediate outlet is formed of a transparent member.

  According to the present invention, since the intermediate duct is provided with a discharge port for discharging a part of the air introduced from the introduction port toward the front on the way from the introduction port to the intermediate outlet, The air blown out from the intermediate outlet can be pushed forward by discharging the air forward, whereby an air curtain can be satisfactorily formed on the front surface in the lower region of the intermediate duct. There is an effect that the lowering of the cooling capacity in the lower region can be suppressed.

FIG. 1 is a sectional side view of a showcase according to an embodiment of the present invention. FIG. 2 is an enlarged sectional side view showing the intermediate duct shown in FIG. FIG. 3 is a perspective view showing the intermediate duct shown in FIG. FIG. 4 is an enlarged sectional side view for explaining the flow of air in the intermediate duct shown in FIG. FIG. 5 is an enlarged cross-sectional side view showing a modification of the main part of the showcase according to the embodiment of the present invention.

  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 sectional side view of a showcase according to an embodiment of the present invention. The showcase illustrated here includes a case body 10.

  The case body 10 is a substantially rectangular heat-insulating housing having an opening (hereinafter, also referred to as a front opening) 11 formed on a front surface thereof, in which a storage chamber 12 is formed and an air circulation means 20 is provided. It is.

  The storage room 12 is a room formed so as to face the front opening 11, and a plurality (six in the illustrated example) of commodity display shelves 13 are arranged in a plurality of rows along the vertical direction. The commodity display shelves 13 are for placing and displaying commodities, respectively.

  The air circulation means 20 includes an air passage 30 and a circulation fan 40. The air passage 30 is an air passage from the suction port 14 to the outlet port 15. Here, the suction port 14 is an opening for sucking air inside the storage chamber 12, and is a long one provided to extend along the left-right direction. The suction port 14 is provided at a lower front edge of the storage chamber 12, that is, at a lower portion near the front opening 11 of the case body 10.

  Two outlets 15 are provided in the illustrated example, and are openings for blowing air into the storage chamber 12. These outlets 15 are provided so as to extend in the left-right direction, respectively, and are provided so as to be lined up and down at the upper front edge of the storage chamber 12, that is, at the upper portion near the front opening 11 of the case body 10.

  Such an air passage 30 includes a lower duct 31 outside and below the storage room 12, a rear duct 32 outside the storage room 12 and on the rear side thereof, and an outside of the storage room 12. The upper duct 33 above the lever is connected to each other. The air passage 30 is divided into two parts from the rear duct 32, and the outer passage 30a communicates with one outlet (hereinafter also referred to as a front outlet) 15a, and the inner passage 30b connects with the other outlet ( Hereinafter, also referred to as a rear outlet) 15b.

  The circulation fan 40 circulates air and is provided at a predetermined portion of the lower duct 31. In the present embodiment, the circulation fan 40 is provided at a predetermined portion of the lower duct 31. However, in the present invention, the arrangement position of the circulation fan 40 is not particularly limited. May be provided at any location where the above can be exhibited.

  An evaporator (cooling means) 41 is provided in the inner passage 30b of the air passage 30. The evaporator 41 is connected to a compressor, a condenser, and an expansion mechanism (not shown) by a refrigerant pipe to constitute a refrigeration cycle for circulating the refrigerant. The compressor compresses the refrigerant, and the condenser condenses the refrigerant compressed by the compressor. The expansion mechanism adiabatically expands the refrigerant condensed in the condenser to a low-temperature and low-pressure state, and forms an air curtain near the front opening 11 of the storage chamber 12.

  Such air circulation means 20 drives the circulation fan 40 to suck air inside the storage chamber 12 through the suction port 14, and sends out the sucked air to the outlet 15 in a mode in which the air passes through the air passage 30. The air is circulated between the inside and the outside of the storage room 12 by blowing air into the storage room 12 through the outlet 15.

  The evaporator 41 heat-exchanges the air passing through the inner passage 30b from the lower side to the upper side by driving the circulation fan 40 and the refrigerant brought into a low-temperature and low-pressure state by the expansion mechanism. Is for cooling the air passing through the inner passage 30b by evaporating the low-temperature and low-pressure refrigerant. The refrigerant evaporated by the evaporator 41 is sucked by the compressor and circulates in the refrigeration cycle.

  In such a showcase, an intermediate duct 50 is provided. 2 and 3 show the intermediate duct 50 shown in FIG. 1, respectively. FIG. 2 is an enlarged sectional side view, and FIG. 3 is a perspective view.

  The intermediate duct 50 has a substantially flat plate shape as a whole. The intermediate duct 50 is provided in the storage chamber 12 so as to penetrate the back panel 16 constituting the rear surface of the storage chamber 12 and the rear end portion 51 blocks the inner passage 30b. It is provided below the third stage product display shelf (hereinafter, also referred to as target product display shelf) 13.

  The intermediate duct 50 has a wind tunnel 52 provided therein. The wind tunnel 52 extends in the front-rear direction, and communicates with an inlet 51 a provided at the rear end 51 and an intermediate outlet 53 a provided at the front end 53. The introduction port 51a is open downward, and is for introducing air passing through the inner passage 30b. The intermediate outlet 53a is open obliquely downward and forward to blow out the air passing through the wind tunnel 52. The front end 53 of the intermediate duct 50 is located behind the front end 13 a of the target product display shelf 13.

  The bottom of the portion except for the rear end 51 of the intermediate duct 50 has two horizontal portions 54 and 55 having different height levels, and an inclined portion 56 connecting the horizontal portions 54 and 55 to each other.

  Of the two horizontal portions 54, 55, the rear horizontal portion 54 has a lower height level than the front horizontal portion 55. The inclined portion 56 connects the rear horizontal portion 54 and the front horizontal portion 55, and is gradually inclined upward toward the front. It is preferable that the inclined portion 56 is provided on the rear side of a middle portion of the storage room 12 of the target product display shelf 13 in the front-rear direction.

  A discharge port 57 is formed in the inclined portion 56. The discharge port 57 is constituted by a plurality of rectangular holes 57a formed in the inclined portion 56 so as to be aligned in the left-right direction, and a part of the air introduced from the inlet 51a and passing through the wind tunnel 52. Is discharged obliquely downward on the front side. Here, the size and the like of the discharge port 57 are adjusted so that the amount of air discharged from itself is smaller than the amount of air blown out from the intermediate outlet 53a.

  In the showcase having the above-described configuration, when the compressor is driven and the circulation fan 40 is driven, the air inside the storage chamber 12 circulates as follows.

  After passing through the lower duct 31, a part of the air inside the storage chamber 12 sucked into the lower duct 31 of the air passage 30 through the suction port 14 passes through the outer passage 30a, and the rest passes through the inner passage 30b. Pass through.

  The air passing through the outer passage 30a reaches the front outlet 15a, is blown out into the storage chamber 12 through the front outlet 15a, and is sucked into the air passage 30 again through the suction port 14, so that the air inside the storage chamber 12 is And circulate with the outside. Thereby, an air curtain can be formed on the front surface of the storage room 12.

  On the other hand, the air passing through the inner passage 30b is cooled by the evaporator 41. The air cooled by the evaporator 41 is introduced into the wind tunnel 52 through the inlet 51a, passes through the wind tunnel 52, is blown out through the intermediate outlet 53a, and is sucked into the air passage 30 again through the suction port 14 to be stored. Circulates between the inside and the outside of the chamber 12. Thus, an air curtain formed of air cooled by the evaporator 41 can be formed on the front surface of the storage chamber 12 below the intermediate duct 50.

  By circulating the air inside the storage room 12 in this manner, an air curtain is formed on the front surface of the storage room 12 by the air blown out from the front outlet 15a. Invasion of outside air can be suppressed.

  Further, since air (cold air) blown out from the intermediate outlet 53a forms an air curtain in front of the lower area of the intermediate duct 50, the lower area of the intermediate duct 50 in the storage room 12 is moved from the upper area of the intermediate duct 50 to the lower side. Can also be cooled. Thus, the upper region and the lower region of the intermediate duct 50 in the storage room 12 can have different temperature zones, and the products in the storage room 12 can be maintained at two temperatures.

  By the way, in the lower region of the intermediate duct 50 of the storage room 12, not only the temperature but also the pressure is reduced by cooling the internal atmosphere. Therefore, the air blown out from the intermediate outlet 53a is caused by the pressure difference between the lower area of the intermediate duct 50 in the storage chamber 12 and the outside of the case body 10, as shown by the arrow (dashed line) in FIG. May be pulled.

  However, a discharge port 57 is formed in the intermediate duct 50, and a part of the air passing through the wind tunnel 52 is discharged obliquely downward and forward from the discharge port 57. Therefore, the arrow (solid line) in FIG. As shown in the drawing, the air blown out from the intermediate outlet 53a can be pushed forward and passed toward the inlet 14.

  As described above, in the showcase according to the present embodiment, the lower duct 31 and the inner passage 30b in the air passage 30 are provided separately from the storage room inside the case main body, and the sucked storage room is provided. The internal air is cooled by cooling means provided therein and blown out to the storage chamber, thereby forming an air passage forming an air curtain on the front surface of the storage chamber.

  According to the showcase of the present embodiment, part of the air passing through the wind tunnel 52 is discharged obliquely downward and forward from the discharge port 57 of the intermediate duct 50, and is blown out from the intermediate outlet 53a. Air can be pushed forward and allowed to pass toward the suction port 14, so that an air curtain can be formed well in front of the lower area of the intermediate duct 50, and a decrease in the cooling capacity of the lower area of the intermediate duct 50 is suppressed. can do.

  According to the above showcase, since the discharge port 57 is formed in the inclined portion 56 which forms the bottom of the intermediate duct 50 and gradually inclines upward toward the front, the front side is obliquely inclined from the discharge port 57. The air can be discharged downward, and the discharged air can also merge with the air blown out from the intermediate outlet 53 a and pass toward the suction port 14, and the air in the lower region of the intermediate duct 50 can be discharged. A curtain can be formed favorably.

  According to the above showcase, since the discharge port 57 of the intermediate duct 50 is formed by forming a plurality of rectangular holes 57a along the left-right direction, a part of the air passing through the wind tunnel 52 is formed. Can be almost uniformly discharged from each hole 57a, and the adjustment of the blowing direction of the air blown from the intermediate outlet 53a can be performed more reliably.

  According to the showcase, since the front end 53 of the intermediate duct 50 is located behind the front end portion 13a of the target product display shelf 13, it is displayed on the product display shelf 13 below the target product display shelf 13. Obstruction of the visibility of the placed product can be suppressed.

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

  In the present invention, as shown in FIG. 5, the lower portion 58a of the front end face 58 of the intermediate duct 50 'constituting the front edge of the intermediate outlet 53a is made of a transparent member made of, for example, a transparent resin material. May be. According to this, even if the lower part 58a of the front end face 58 enters the line of sight of the user (customer) of the showcase, it is possible to suppress the user from being aware of the existence of the intermediate duct 50 '.

  In the above-described embodiment, since the discharge port 57 is formed in the inclined portion 56, a part of the air introduced from the inlet port 51a and passing through the wind tunnel 52 is directed obliquely downward from the discharge port 57 toward the front side. However, in the present invention, on the way from the inlet to the intermediate outlet, if it is possible to discharge a part of the air introduced from the inlet toward the front, the installation location of the outlet and The form is not particularly limited.

DESCRIPTION OF SYMBOLS 10 Case main body 11 Front opening 12 Storage room 13 Commodity display shelf 30 Air passage 30a Outer passage 30b Inner passage 31 Lower duct 32 Back duct 33 Upper duct 40 Circulation fan 41 Evaporator 50 Intermediate duct 51 Rear end 51a Inlet 52 Wind tunnel 53 Front end 53a Intermediate outlet 54 Horizontal part 55 Horizontal part 56 Inclined part 57 Discharge port 57a Hole

Claims (4)

A storage room formed inside the case body,
The storage chamber is provided separately from the storage chamber inside the case main body, and the sucked internal air of the storage chamber is cooled by cooling means provided therein and blown out to the storage chamber, whereby the storage chamber is closed. An air passage forming an air curtain on the front,
Air that is provided in the storage chamber in a manner that shuts off the air passage and that is cooled by the cooling means is introduced from an inlet provided at a rear end and is blown out from an intermediate outlet provided at a front end. And an intermediate duct that forms an air curtain in front of the lower region of the vehicle.
In a showcase in which the upper region and the lower region of the intermediate duct in the storage room have different temperature ranges,
The intermediate duct, from the inlet Te middle smell leading to said intermediate outlet, provided with a discharge opening,
The bottom of the intermediate duct has horizontal parts of different height levels,
The discharge port is formed in an inclined portion that connects horizontal portions of different height levels and gradually slopes upward as it goes forward, and directs a portion of the air introduced from the inlet port forward. A showcase characterized by discharging . 2. The showcase according to claim 1 , wherein the discharge port is formed by forming a plurality of holes in the inclined portion along a left-right direction. 3. The said intermediate duct is provided in the lower part of arbitrary goods display shelves, and a front end part is located behind the front end part of the said goods display shelf, The Claim 1 or Claim 2 characterized by the above-mentioned. Showcase. The showcase according to any one of claims 1 to 3 , wherein in the intermediate duct, a lower part of a front end surface constituting a front edge of the intermediate outlet is formed of a transparent member.

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