JP2019080797A - Show case - Google Patents

Abstract

To attain energy saving by reducing power consumption.SOLUTION: The show case includes: a body part 10 that has a front opening 10a in a front part and that has a door body 30 for opening/closing the front opening 10a; a storage chamber 11 that is defined inside the body part 10 in a manner facing the front opening 10a; an air passage 12 that is formed inside the body part 10 in a manner communicating with the storage chamber 11 through an inlet port 15 which is opened in the front lower part of the storage chamber 11 and an outlet port 16 which is opened in the front upper part of the storage chamber 11; a circulation fan 60 that circulates air between the storage chamber 11 and the air passage 12 in a manner that the air is sucked in the air passage 12 through the inlet port 15 and that the air passed through the air passage 12 is exhausted into the storage chamber 11 from the outlet port 16; and an evaporator 70 that cools the air which is circulated by the circulation fan 60. In this show case, a frame 40 that constitutes a stop part of the door body 30 is installed in the front of a heat-insulating opening edge part which constitutes the front opening 10a.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a showcase, and more particularly to a showcase that holds stored goods at a desired temperature state.

  Conventionally, as a showcase for holding stored goods at a desired temperature state, there has been known one having a main body, a storage room and an air passage. The main body portion is a rectangular heat insulating box in which a front opening that is opened and closed by a front door is formed on the front.

  The storage chamber is a chamber defined in a manner to face the front opening in the inside of the main body, and a plurality of stages of product placement shelves are provided along the vertical direction. The commodity placement rack is for placing and displaying commodities.

  The air passage is formed in the interior of the main body in such a manner as to communicate with the storage chamber through a suction port opened at the lower front of the storage chamber and a blower outlet opened at the upper front of the storage chamber. A circulation fan and an evaporator are provided in the air passage.

  In such a showcase, when the circulation fan is driven, the air inside the storage room circulates as follows. The air inside the storage chamber is sucked into the air passage through the suction port and is cooled by the evaporator while passing through the air passage. The cooled air is blown out into the storage chamber through the blowout port, sucked into the suction port and circulated. Then, the air blown out from the blowout port is sucked into the suction port, whereby an air curtain of cold air is formed in the front of the storage room, that is, in the vicinity of the front opening closed by the front door, and placed on the product placement shelf The product is adjusted to the desired temperature.

  In such a showcase, a four-round frame which guides sliding movement of the front door and which constitutes a door contact portion is provided at the opening edge of the front opening (see, for example, Patent Document 1).

JP, 2014-151113, A

  By the way, in the showcase proposed in Patent Document 1 described above, since the frame is provided at the opening edge, the frame is arranged so that a part of the frame faces the storage room. In particular, the portion of the frame provided on the upper edge of the front opening is provided near the outlet. Therefore, when the air (cold air) blown out from the blowout port directly strikes the portion, temperature unevenness occurs in the frame itself, and a locally low temperature portion is generated. Thus, since a low temperature location locally occurs in the frame, a dew condensation heater provided to prevent condensation from forming on the frame must have a capacity matched to the location, and the capacity is It has become excessive and has led to an increase in power consumption.

  An object of the present invention is to provide a showcase which can achieve energy saving by reducing power consumption in view of the above-mentioned situation.

  In order to achieve the above object, the showcase according to the present invention has a front opening in a front portion, and the front opening is a main body portion opened and closed by a door, and the main body portion in a manner facing the front opening. In a manner to communicate with the storage chamber through a storage chamber defined inside, a suction port opening at the lower front of the storage chamber, and an outlet opening at the upper front of the storage chamber, The storage chamber and the air passage are formed in such a manner that air is drawn into the air passage through the suction port and air which has passed through the air passage is blown out to the storage chamber from the blowout port. The door having a circulation means for circulating air between the two and a cooling means for cooling the air circulated by the circulation means, wherein the door holds the goods stored in the storage chamber at a desired temperature state; Frame forming part per door is characterized in that provided on the front surface of the opening edge portion of the heat insulating property constituting the front opening.

  Further, according to the present invention, in the showcase, the main body portion is a heat insulating box body having the front surface opening formed on the front surface, and the frame is provided on the front surface of the opening edge portion of the front surface opening in the main body portion. It is characterized in that it is provided.

  Further, the present invention is characterized in that, in the showcase described above, a lighting means is provided which illuminates the inside of the storage chamber while securing an air curtain formed by the air blown out from the blowout port and sucked into the suction port. I assume.

  Further, according to the present invention, in the showcase, the illumination means is provided in a form extending in the vertical direction between mutually opposing opening edges of the front opening, and the left and right sides of the columnar member And a light source member provided on at least one of the two side surfaces for emitting light.

  According to the present invention, the frame constituting the door contact of the door is provided on the front face of the heat insulating opening edge constituting the front opening, so that the air blown out from the outlet directly hits the frame. As a result, it is difficult to cause temperature unevenness in the frame itself, and no locally low temperature portion is generated. Therefore, it is possible to reduce the capacity of the dew protection heater installed to prevent condensation from occurring on the frame. Therefore, the power consumption can be reduced to achieve energy saving.

FIG. 1 is a front view showing a showcase according to an embodiment of the present invention. FIG. 2 is a perspective view showing a showcase according to an embodiment of the present invention. FIG. 3 is a perspective view showing a showcase according to an embodiment of the present invention. FIG. 4 schematically shows the internal structure of the showcase according to the embodiment of the present invention, and is a cross-sectional view taken along the line A-A in FIG. FIG. 5 is a perspective view showing the frame shown in FIGS. 3 and 4. FIG. 6 is an enlarged perspective view showing the main part of the frame shown in FIG. FIG. 7 is a cross-sectional plan view showing an enlarged main part of the frame shown in FIG. FIG. 8 is an explanatory view showing the flow of air in the vicinity of the front opening of the main body.

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

  1 to 4 show a showcase according to an embodiment of the present invention, FIG. 1 is a front view, FIGS. 2 and 3 are perspective views, and FIG. 4 schematically shows an internal structure. FIG. 2 is a sectional view taken along the line A-A in FIG.

  The showcase illustrated here is installed in a store such as a supermarket or a convenience store, for example, and includes the case main body 1. The case main body 1 is configured to include a main body portion 10 and an exterior portion 20.

  The main body portion 10 is a substantially rectangular heat insulating box having an opening (hereinafter, also referred to as a front opening) 10 a formed on the front surface. The exterior portion 20 is configured by combining a plurality of metal panels 21 to 25 and is provided in a manner to surround the main body portion 10.

  Describing in more detail, the exterior portion 20 is configured by combining the side panel 21, the back panel 22, the bottom panel 23, the top panel 24, and the front panel 25.

  The side panels 21 are a pair of left and right ones, and are provided so as to cover the side surfaces of the main body portion 10. The side panel 21 has an upper end located above the upper surface of the main body 10, a lower end located below the lower surface of the main body 10, and a rear end located rearward of the rear surface of the main body 10. .

  The rear panel 22 is provided in such a manner as to connect the rear ends of the side panels 21 in a state of facing the rear surface of the main body 10 and being separated from the rear surface.

  The bottom panel 23 is provided in such a manner as to connect the lower ends of the side panels 21 in a state of facing the lower surface of the main body portion 10 and being separated from the lower surface. The bottom panel 23 is provided with a plurality of (three in the illustrated example) legs 231. The top panel 24 is provided between the side panels 21 so as to face the upper surface of the main body 10 and to be separated from the upper surface.

  Two front panels 25 are provided at the top and the bottom. The upper front panel 25 (hereinafter also referred to as the upper front panel 25 a) is provided in such a manner as to connect the upper portions of the front end portions of the side panels 21. The upper front panel 25a covers a part of the front surface of the main body 10, and the lower surface 251 is located above the front opening 10a. The lower front panel 25 (hereinafter also referred to as the lower front panel 25 b) is provided in such a manner as to connect the lower portions of the front end portions of the side panels 21. The lower front panel 25b covers a part of the front surface of the main body 10, and the upper surface 252 is located below the front opening 10a. A machine room 2 is formed between the lower front panel 25 b, the side panel 21 and the rear panel 22 with the lower surface of the main body 10. Further, an introduction hole 253 for introducing the outside air into the machine room 2 is formed in the lower front panel 25b.

  The exterior unit 20 having such a configuration has a door 30. The door 30 is provided with two front doors 31 and 32. The left front door 31 is a heat insulating door having a sufficient size to cover the left half of the front opening 10 a of the main body 10. The left front door 31 has the left end of the lower surface 251 of the upper front panel 25a and the left end of the upper surface 252 of the lower front panel 25b with the hinge mechanism 33 at the right end to be free end It can swing in the direction.

  The left front door 31 opens and closes the left half of the front opening 10a by swinging, and more specifically, opens the left half of the front opening 10a by swinging forward. On the other hand, by swinging backward, the left half of the front opening 10a is closed.

  In addition, a rectangular opening 31a is formed in the front door 31 on the left side, and a window portion is provided by fitting a plate 31b of heat insulating glass in a mode of closing the rectangular opening 31a. Therefore, the inside of the main body 10 can be visually recognized from the outside through the window.

  The right front door 32 is a heat insulating door having a sufficient size to cover the right half of the front opening 10 a of the main body 10. The right front door 32 is in the front-rear direction in such a manner that the right end becomes a free end via the hinge mechanism 34 at the center of the lower surface 251 of the upper front panel 25a and the center of the upper surface 252 of the lower front panel 25b. It is provided swingably.

  The right side front door 32 opens and closes the right half of the front opening 10a by swinging, and more specifically, opens the right half of the front opening 10a by swinging forward. On the other hand, the right half of the front opening 10a is closed by swinging rearward.

  In addition, a rectangular opening 32a is formed in the front door 32 on the right side, and a window portion is provided by fitting a plate 32b of a heat insulating glass in a mode of closing the rectangular opening 32a. Therefore, the inside of the main body 10 can be visually recognized from the outside through the window.

  The main body portion 10 is provided with a storage chamber 11, an air passage 12, a frame 40 and a columnar member 50. The storage chamber 11 is a chamber defined inside the main body 10 in a manner to face the front opening 10 a. In the storage room 11, a plurality of (seven in the illustrated example) product placement shelves 13 are provided in a plurality of stages along the vertical direction. The product placement racks 13 are conventionally known, and are supported by a pair of left and right brackets 14 attached to a shelf support 11 a erected on the back of the storage room 11. The pair of left and right brackets 14 A shelf board 13a is constructed by being bridged via a slider (not shown) between them. The commodity placement rack 13 is for placing and displaying the commodity on the upper surface of the shelf board 13a. The slider supports the shelf plate 13 a slidably along the front-rear direction with respect to the bracket 14.

  Such a storage chamber 11 is formed with a suction port 15 that opens in the lower front portion thereof, and a blowout port 16 that opens in the upper front portion thereof. The suction port 15 is an opening for sucking in the air inside the storage chamber 11. The blowout port 16 is an opening for blowing air into the storage chamber 11.

  The air passage 12 is formed inside the main body portion 10 and outside the storage chamber 11 and is a passage of air extending from the suction port 15 to the blowout port 16. The air passage 12 communicates with the storage chamber 11 through the suction port 15 and the blowout port 16.

  Such an air passage 12 is a lower duct 12a which is outside the storage room 11 and is below it, a rear duct 12b which is outside the storage room 11 and which is rear side thereof, and it is the outside of the storage room 11 The lower duct 12a, the rear duct 12b, and the upper duct 12c are in communication with each other, and the upper duct 12c is located on the upper side thereof.

  A circulation fan (circulation means) 60 and an evaporator (cooling means) 70 are installed in the air passage 12. The circulation fan 60 is disposed at the communication portion between the lower duct 12a and the rear duct 12b. The circulation fan 60 is driven by being given a drive command, and when it is driven, air in the storage chamber 11 is circulated between the storage chamber 11 and the air passage 12. In the present embodiment, the circulation fan 60 is installed at the communication portion between the lower duct 12a and the rear duct 12b, but in the present invention, the installation location of the circulation fan 60 is not particularly limited, As described later, as long as the function of the circulation fan 60 can be exhibited, it may be installed at any place.

  The evaporator 70 is disposed at the upper duct 12 c, that is, at a position closer to the air outlet 12 than the circulation fan 60 in the air passage 12. The evaporator 70 is connected to a compressor 71, a condenser 72, and an expansion mechanism 73 installed in the machine chamber 2 through a refrigerant pipeline to constitute a refrigeration cycle for circulating the refrigerant. The compressor 71 compresses a refrigerant, and the condenser 72 condenses the refrigerant compressed by the compressor 71 and radiates the heat. The expansion mechanism 73 adiabatically expands the refrigerant condensed by the condenser 72 to a low temperature and low pressure state.

  In the showcase, when the circulation fan 60 is driven, the air inside the storage chamber 11 is sucked into the air passage 12 through the suction port 15, passes through the air passage 12, and is blown out into the storage chamber 11 through the blowout port 16. Be done. In other words, in the circulation fan 60, the air inside the storage chamber 11 is sucked into the air passage 12 through the suction port 15 and the air passing through the air passage 12 is blown out into the storage chamber 11 from the outlet 16 Air is circulated between the air passage 11 and the air passage 12.

  The evaporator 70 performs heat exchange between the air passing through the upper duct 12 c of the air passage 12 by driving the circulation fan 60 and the refrigerant brought into the low temperature and low pressure state by the expansion mechanism 73, more specifically, The air passing through the upper duct 12c is cooled by evaporating the low-temperature low-pressure refrigerant. The refrigerant evaporated by the evaporator 70 is sucked by the compressor 71 to circulate in the refrigeration cycle.

  FIG. 5 is a perspective view showing the frame 40 shown in FIGS. 3 and 4. As also shown in FIG. 5, the frame 40 has a rectangular shape formed by framing the upper frame 41, the lower frame 42, and the pair of left and right vertical frames 43 and 44 on four sides. The frame 40 is provided with a partition frame 45 extending along the vertical direction in such a manner as to connect the central portion in the longitudinal direction of the upper frame 41 and the central portion in the longitudinal direction of the lower frame 42. The partition frame 45 divides the rectangular opening 46 formed by framing the upper frame 41, the lower frame 42, and the vertical frames 43 and 44 into four equal parts in the left and right.

  Such a frame 40 is attached to the front of the opening edge of the front opening 10 a in the main body 10 with each frame 41 or the like. That is, the upper frame 41 is attached to the front of the opening upper edge 17 a of the front opening 10 a in the main body 10, and the lower frame 42 is attached to the front of the opening lower edge 17 b of the front opening 10 a of the main body 10 is there. Although not clearly shown in the figure, the left vertical frame 43 is attached to the front of the opening left edge of the front opening 10 a in the main body 10, and the right vertical frame 44 is the front opening 10 a in the main body 10. Attached to the front of the open right edge of the

  The frame 40 forms a contact surface to be in contact with the door 30 that closes the front opening 10a by laying a contact material made of, for example, soft resin on the front surface of each frame 41 etc. It constitutes 30 door stops. That is, when the left front door 31 closes the left half of the front opening 10 a, the left half of the front of the upper frame 41, the left half of the front of the lower frame 42, the front of the vertical frame 43 of the left, and The left half of the front abuts on the left front door 31. When the right front door 32 closes the right half of the front opening 10a, the right half of the front of the upper frame 41, the right half of the front of the lower frame 42, the front of the right vertical frame 44, and the front of the partition frame 45 The right half of the frame abuts on the right front door 32.

  The columnar member 50 is formed of, for example, a sheet metal or the like, and has a long shape in which the vertical direction is the longitudinal direction. As shown in FIGS. 6 and 7, the columnar member 50 is fastened and attached to the rear portion of the partition frame 45 with a screw N or the like. More specifically, the columnar member 50 is attached to the rear of the partition frame 45 so that the opening edges of the front opening 10a of the main body 10 face each other, that is, the opening upper edge 17a and the opening lower edge 17b. And in a manner extending along the up and down direction. Light source members 51 are provided on the left and right side surfaces of the columnar member 50 so as to be supported by a support member 52. The light source member 51 is a long member whose longitudinal direction is the vertical direction, and a plurality of LEDs are arranged inside at a predetermined interval along the longitudinal direction. The light source member 51 emits light when the LED is lit.

  In the showcase of the present embodiment having the configuration as described above, the air inside the storage chamber 11 circulates as follows by driving the compressor 71 and driving the circulation fan 60.

  The air sucked into the lower duct 12a of the air passage 12 through the suction port 15 passes through the lower duct 12a and then passes through the aft duct 12b. The air passing through the rear duct 12b reaches the upper duct 12c, and is cooled by the evaporator 70 on the way of passing the upper duct 12c. The air cooled by the evaporator 70 is blown out to the storage room 11 through the outlet 16 after passing through the upper duct 12 c. The air blown out from the blowout port 16 passes downward of the front area of each product placement shelf 13 and is sucked into the air passage 12 from the suction opening 15, whereby the storage chamber 11 and the air passage 12 are It circulates.

  As a result, as shown in FIG. 8, an air curtain AC of air cooled by the evaporator 70 is formed in the vicinity of the front opening 10 a of the storage chamber 11. The air curtain AC formed in this manner and the door 30 for closing the front opening 10a suppress the entry of outside air through the front opening 10a, and the temperature at which the product displayed on each product placement shelf 13 has a desired temperature To be cooled.

  And according to the showcase which is this embodiment, each frame 41 grade which is a component of frame 40 is provided in the front of the opening edge of front opening 10a in main part 10 which is a heat insulation box. Therefore, the air (cool air) blown out from the blowout port 16 does not directly hit the frame 40, temperature unevenness is hard to occur in the frame 40 itself, and a locally low temperature portion does not occur. Therefore, the capacity of the anti-dew heater (not shown) installed to prevent condensation from being generated on the frame 40 can be reduced. Therefore, energy consumption can be achieved by reducing power consumption.

  According to the showcase described above, the columnar members 50 to which the light source members 51 are attached on the left and right side surfaces are disposed between the opening edges facing each other of the front opening 10a of the main body 10, that is Since it is provided in the form of extending along the vertical direction between 17b and 17b, the air curtain AC can be formed well without obstructing the flow of the air (cold air) blown out from the outlet 16. Moreover, the inside of the storage room 11 can be illuminated. That is, the inside of the storage chamber 11 can be illuminated while securing the air curtain AC formed by the air blown out from the blowout port 16 and sucked into the suction port 15. Therefore, the amount of outside air intrusion when the front opening 10a is opened can be reduced, and frost formation inside can be suppressed.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to this, A various change can be made.

  In the embodiment described above, the columnar member 50 is attached to the rear portion of the partition frame 45 constituting the frame 40. However, in the present invention, the columnar member does not have to be attached to the partition frame, and the main body It may be supported in any manner as long as it is provided to extend along the up and down direction between mutually opposing opening edges of the front opening of the part.

  In the embodiment described above, each frame 41 etc. which is a component of the frame 40 is provided on the front face of the opening edge of the front opening 10a in the main body 10 which is a heat insulating box, but in the present invention The frame does not have to be provided on the front face of the main body, but may be provided on the front face of the heat insulating opening edge that constitutes the front face opening. That is, when the heat insulating member forming the opening edge is attached to the main body, the frame may be provided on the heat insulating member.

  In the embodiment described above, the columnar members 50 are provided to extend along the vertical direction between mutually opposing opening edges of the front opening 10 a of the main body 10, and the light source members 51 are provided on both left and right sides of the columnar members 50. By being attached to the surface, the illumination means for illuminating the inside of the storage room 11 is configured while securing the air curtain AC. However, in the present invention, the illumination means face each other in the front opening if the interior of the storage chamber can be illuminated while securing the air curtain formed by the air blown out from the air outlet and sucked into the air inlet. It does not need to be provided between the opening edges, and may be provided inside the storage chamber behind the formed air curtain.

DESCRIPTION OF SYMBOLS 1 Case main body 10 Body part 10a Front opening 11 Storage room 12 Air passage 13 Product placement shelf 15 Suction port 16 Air outlet 20 Exterior part 30 Door body 31 Front door 32 Front door 40 Frame 41 Upper frame 42 Lower frame 43 Vertical frame 44 Vertical frame 45 Partition frame 50 Column-shaped member 51 Light source member 60 Circulation fan 70 Evaporator AC Air curtain

Claims (4)

A body portion having a front opening at a front portion, the front opening being opened and closed by a door;
A storage chamber defined inside the main body in a manner to face the front opening;
An air passage formed in the inside of the main body, in communication with the storage chamber through a suction port opening in the front lower portion of the storage chamber and an outlet opening in the front upper portion of the storage chamber;
Air is sucked into the air passage through the suction port and air which has passed through the air passage is blown out from the outlet into the storage chamber, thereby circulating air between the storage chamber and the air passage. Circulation means,
And a cooling means for cooling the air circulated by the circulating means, in the showcase for holding the product stored in the storage room at a desired temperature state,
A showcase characterized in that a frame that constitutes the door contact part of the door is provided on the front face of the heat insulating opening edge part that constitutes the front opening. The main body portion is a heat insulating box in which the front opening is formed on the front surface,
The showcase according to claim 1, wherein the frame is provided on a front surface of an opening edge of the front opening in the main body.   The illumination means which illuminates the inside of the said storage chamber was provided, securing the air curtain formed by the air which blows off from the said blower outlet and is inhaled by the said suction opening. Showcase described. The illumination means is
A columnar member provided in a manner extending in the vertical direction between mutually opposing opening edges of the front opening;
4. The showcase according to claim 3, further comprising: a light source member provided on at least one of the left and right side surfaces of the columnar member and emitting light.

Images