JP2013002792A - Showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a showcase capable of a different temperature zone without closing the interior of a box with a door etc.SOLUTION: An open showcase that keeps in-box articles cold by forming an air curtain 7 at an opening 1 in the front by blowing cold air in a duct 4 from a front-side cold air blow port 5 and sucking it from a cold air inlet 6 on the front side of a bottom surface includes: an under-shelf duct 12 which is provided along a lower side of an article shelf 8 provided in the box, and guides cold air in the duct 4 to the side of the opening 1 from a hole 9 bored in a panel 44 on an in-box back side; an air direction device 11 which is provided to a tip of the shelf on the side of the opening 1 of the shelf, and guides the cold air downward from the under-shelf duct 12; and a fence 10 which is provided leaving a predetermined gap on the side of the opening 1 from the air direction device 11, and forms a flow path of an air curtain 7 between itself and the air direction device 11.

Description

  The present invention relates to a multistage open showcase in which an air curtain is formed by circulating cold air at a front opening of a commodity storage in which a plurality of commodity shelves are installed in multiple stages.

  Conventionally, a showcase in which different temperature zones are formed in a cabinet is known (see, for example, Patent Document 1). As shown in FIG. 13, in the showcase of Patent Document 1, a storage box having a shelf door 60 is provided on a lower shelf, and the storage box is filled with cool air in the duct through a back hole 62 to reduce the temperature. A temperature zone is formed, and an intermediate temperature zone is formed on another shelf by the air curtain 66 blown from the outlet 64 above the opening.

  As described above, this showcase has a feature in that since different temperature zones are created in the interior 68 only by the airflow, temperature adjustment by conventional heater heating is unnecessary and energy saving can be achieved. Moreover, since the intermediate duct conventionally used as a temperature boundary is not required, there is also a feature that the product loading space is not reduced.

JP 2009-222290 A

  However, the showcase of the above-mentioned Patent Document 1 has a problem that the accessibility of the product is poor because the opening / closing operation of the shelf door 60 is necessary when taking out the product from the storage box in the low temperature zone.

  This invention is made | formed in view of the above, Comprising: It aims at providing the showcase which can form a different temperature zone, without sealing the inside of a store | warehouse | chamber with a door.

  In order to solve the above-mentioned problems and achieve the object, a showcase according to claim 1 of the present invention is a panel in a product storage room constituted by a front surface having an opening, a top surface comprising a heat insulating wall, a back surface and a bottom surface. By forming a duct by partitioning with air, blow out the cold air in this duct from the cold air outlet on the front side of the top surface, and suck the air from the cold air inlet on the front side of the bottom surface to form an air curtain at the front opening In the open showcase that keeps the product in the refrigerator cold, the cold air in the duct is opened from the hole provided in the panel on the rear side of the refrigerator, arranged along the lower side of the product shelf provided in the refrigerator. A duct under the shelf that leads to the side, a wind direction device that guides the cold air from the duct under the shelf downward, and a space from the wind direction device that opens to the opening side. , Wind direction Characterized in that a fence to form a flow path of the air curtain between the location.

  A showcase according to claim 2 of the present invention is characterized in that, in claim 1 described above, a blowout device having a rectifying action is provided at a shelf outlet for blowing out cool air from the shelf underduct.

  The showcase according to claim 3 of the present invention is characterized in that, in the above-described claim 1 or 2, the opening side of the shelf is configured by a slide shelf that is movable back and forth in the front-rear direction.

  A showcase according to a fourth aspect of the present invention is the shelf according to any one of the first to third aspects, wherein the fence is provided with a retractable fence and the shelf on the opening side of the upper shelf of the shelf. Another wind direction device is provided at the tip, and the air flow of the air curtain is guided from the wind direction device to the retractable fence side.

  According to the present invention, a duct is formed by partitioning the interior of a product storage constituted by a front surface having an opening, a top surface composed of a heat insulating wall, a back surface and a bottom surface with a panel, and cool air in the duct is placed on the front side of the top surface. A product provided in the open showcase that keeps the product in the cabinet cold by blowing out from the cold air outlet and sucking in from the cold air inlet on the front side of the bottom to form an air curtain at the front opening It is arranged along the lower side of the shelf, and is provided at the shelf front end on the shelf side on the opening side of this shelf, and the lower shelf duct that guides the cold air in the duct to the opening side from the hole provided in the panel on the back side in the warehouse, A wind direction device that guides cool air from the duct under the shelf downward, and a fence that is provided at a predetermined interval from the wind direction device to the opening side and that forms a flow path of the air curtain between the wind direction device. Have . For this reason, the low temperature cold air in the duct flowing into the warehouse through the hole under the shelf from the hole provided in the panel on the back side of the warehouse is converted into a downward airflow by the wind direction device at the shelf tip to form an air curtain. On the other hand, the airflow of the air curtain formed from the cold air outlet to the cold air inlet passes between the wind direction device and the fence. Since the two air curtains form a so-called two-layer air curtain at the tip of the shelf, a lower temperature zone is provided below the shelf than other shelves without a fence or a wind direction device. It will be formed stably. For this reason, it becomes possible to form a different temperature zone only by an airflow design about a desired shelf. Therefore, different temperature zones can be formed without physically sealing the interior with a door or the like as in the prior art, and the product accessibility is improved.

FIG. 1 is a diagram illustrating a showcase according to a first embodiment of the present invention. FIG. 2 is a diagram showing a modification of the first embodiment of the present invention, and is a diagram in the case where two temperature zones are formed upside down. FIG. 3 is a diagram showing a modification of the first embodiment of the present invention, and is a diagram in the case where a windproof device is provided. FIG. 4 is a view showing a modification of the first embodiment of the present invention, and is a view in the case where a wind shield device is provided. FIG. 5 is a diagram illustrating a showcase according to the second embodiment of the present invention, and is a diagram in the case where a blowout device is provided. FIG. 6 is a diagram illustrating a showcase according to a third embodiment of the present invention, in which a slide shelf is provided. FIG. 7 is a diagram illustrating a showcase according to a fourth embodiment of the present invention, and is a diagram in the case where a retractable fence is provided. FIG. 8 is a view showing a showcase of a modified example of the present invention, and is a view in the case where a slide device is provided. FIG. 9 is a perspective view showing an example of the slide device of FIG. FIG. 10 is a view showing a showcase of a modified example of the present invention, and is a view in the case where a lighting device is provided. FIG. 11 is a view showing a showcase of a modification of the present invention, and is a view in the case where a flexible windproof device is provided. FIG. 12 is a view showing a showcase of a modified example of the present invention, and is a view when a shelf gap is provided. FIG. 13 is a diagram illustrating an example of a conventional showcase.

  Hereinafter, embodiments (Examples 1 to 4) of a showcase according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

[Example 1]
First, the showcase of Example 1 will be described.
As shown in FIG. 1, the showcase 100 according to the first embodiment of the present invention includes a front side 34 having an opening 1, a top surface 36 including a heat insulating wall, a back surface 38, and a bottom surface 40. The duct 4 is formed by partitioning with the panel 3 and the inner panel 44 including the heat insulating wall 2, the heat exchanger 13 is provided on the lower side of the duct 4, and the cool air in the duct 4 is blown into the front side of the top surface 36. This is an open showcase in which the goods in the refrigerator are kept cold by blowing out from the outlet 5 and forming the air curtain 7 in the front opening 1 by sucking from the cold air inlet 6 on the front side of the bottom surface 40. Of the product shelves 8 provided in the upper and lower multi-stages in the cabinet 42, the shelf 8 corresponding to the two tiers from the bottom is provided with a shelf lower duct 12, a wind direction device 11, and a fence 10.

  The under-shelf duct 12 is arranged along the lower side of the shelf 8 corresponding to two tiers from the bottom, and the cool air 14 in the duct 4 is passed through the hole 9 provided in the inner panel 44 on the rear side of the cabinet under the shelf on the opening 1 side. This is to guide the air outlet 46.

  The wind direction device 11 is provided at the front end of the shelf 8 on the side of the opening 1 of the shelf 8 for two stages from the bottom, and guides the cool air 14 from the under-shelf duct 12 downward.

  The fence 10 is provided at a predetermined interval from the wind direction device 11 toward the opening 1, and is used to form a flow path of the air curtain 7 between the wind direction device 11.

  According to the above configuration, the low-temperature cold air 14 immediately after being cooled by the heat exchanger 13 passes through the hole 9 and passes through the under-shelf duct 12, and hits the wind direction device 11 at the front end of the shelf on the side of the opening 1. The blowout air curtain 15 is formed from the bottom shelf outlet 46. On the other hand, the air curtain 7 formed from the cold air outlet 5 to the cold air inlet 6 is guided to the gap between the wind direction device 11 at the tip of the shelf and the fence 10 to form an air curtain that flows along the air curtain 15. . That is, in order to form a so-called two-layer air curtain by the air curtain 15 formed by the low-temperature cold air 14 and the air curtain 7 formed along the air curtain 15 in the lower two-tier shelf 8, the fence 10 and the wind direction device 11 are provided. The low temperature zone B is formed more stably than the other shelves 8 that are not.

  For this reason, since it is possible to form two different temperature zones, namely the lower two-stage low temperature zone B and the upper middle temperature zone A only by the airflow design, it is possible to suppress intrusion of outside air heat. Thus, it is not necessary to physically seal the interior with a door or the like in order to form a different temperature zone. Therefore, since the products placed in the medium temperature zone A and the low temperature zone B can be easily taken out, the effect of improving the product accessibility can be obtained.

  In the above embodiment, the case where the low temperature zone B is formed in the lower stage and the intermediate temperature zone A is formed in the upper stage has been described. It is also possible to form the band A in the lower stage. For example, as shown in FIG. 2, a shelf bottom duct 12, a wind direction device 11, and a fence 10 are provided for the shelf 8 corresponding to the three stages from the top. As a result, a two-layer air curtain is created by the air curtain 15 and the air curtain 7 on the three shelves from the top, so that the low temperature zone B is formed, and the middle temperature zone A is formed by cooling the air curtain 7 on the bottom. Is done. In this way, it is possible to form a different temperature zone in a desired shelf regardless of the lower and upper stages.

  In the above embodiment, a windproof device may be provided at the lower part of the under-shelf duct 12. For example, for a showcase as shown in FIG. 3A, a plurality of holes 9 are provided in the inner panel 44 as shown in FIG. The windproof device 19 such as a vinyl curtain is suspended from the front edge of the vent 50. In this way, the pressure inside the cabinet is increased by the windbreak device 19 and the low-temperature cold air 14 flowing in from the hole 9 is naturally guided to the under-shelf duct 12 through the vent 50, so that the vertical position of the shelf is changed. The effect that it can do is acquired.

  Moreover, in said embodiment, you may provide a heat insulating material in the shelf 8 used as the boundary of two temperature zones, and may provide a windshield apparatus in the rear side edge part of the shelf 8. FIG. For example, as shown in the side sectional view of FIG. 4 (1) and the top view of (2), the heat insulating material 17 is disposed on the bottom surface of the shelf plate of the shelf 8, and the inner panel 44 at the rear end of the shelf 8 and The wind shield device 16 is disposed in the gap between the left side right end portion and the side plate 30. In this case, since the gap is closed by the wind shield device 16, the airflow in the medium temperature zone A with a high content of moisture does not flow into the low temperature zone B, and the heat insulating material 17 causes the middle temperature zone A side of the shelf 8 to be Since the influence of the low temperature zone B is suppressed, the shelf board surface does not become low temperature. Therefore, since there is a low possibility that the airflow in the medium temperature zone A containing a large amount of moisture is rapidly cooled on the shelf surface, it is possible to suppress condensation even in the case of cooling in a different temperature zone where the temperature difference is large. .

[Example 2]
Next, the showcase of Example 2 will be described.
As shown in the side sectional view of FIG. 5 (1) and the partial bottom view of FIG. 5 (2), the showcase 200 according to the second embodiment of the present invention uses the cool air 14 from the under-shelf duct 12 in the first embodiment. A blowing device 18 having a rectifying action is provided at the outlet 46 under the shelf.

  The blowing device 18 is formed of a metal plate having punch holes, and can rectify the air curtain 15 blown out from the under-shelf duct 12. This rectification effect improves the shut-off performance of outside air heat, and an energy saving effect is obtained. The blowing device 18 is not limited to a metal plate having punch holes, and other materials and forms may be used as long as they have a rectifying action.

[Example 3]
Next, the showcase of Example 3 will be described.
As shown in FIG. 6 (2), the showcase 300 according to the third embodiment of the present invention is the same as in the first or second embodiment described above, the slide shelf 20 that can move forward and backward in the front-rear direction on the opening 1 side of the shelf 8. It is composed of

  Specifically, as shown in FIG. 6 (1), when the tip of the upper shelf 8 is behind the tip of the lower shelf 8, the air curtains 7 and 15 are curved downward. Therefore, the temperature of the region C tends to increase easily due to the influence of outside air heat. Therefore, as shown in FIG. 6 (2), if the shelf tip is extended to the opening 1 side in the slide shelf 20, the upper positions of the air curtains 7 and 15 move to the opening 1 side. Cooling by the air curtains 7 and 15 is possible up to the vicinity of C, and an effect that temperature unevenness in the warehouse can be improved is obtained.

[Example 4]
Next, the showcase of Example 4 will be described.
As shown in FIG. 7 (2), the showcase 400 according to the fourth embodiment of the present invention is provided with the retractable fence 22 at the upper end of the fence 10 and the upper shelf in the first, second, or third embodiment. 8, another air direction device 21 is provided at the front end of the shelf on the opening 1 side, and the air flow of the air curtain 7 is guided from the air direction device 21 to the retractable fence 22 side.

  Specifically, as shown in FIG. 7 (1), when the tip of the upper shelf 8 is behind the tip of the lower shelf 8, the airflow of the air curtain 7 collides with the lower shelf 8. There is a risk. Therefore, as shown in FIG. 7 (2), the air curtain 7 is guided to the wind direction plate 21, so that the direction is changed toward the tip of the lower shelf 8, and the folding fence 22 arranged along the air curtain track. Since the air is rectified toward the gap between the wind direction device 11 at the top of the shelf and cooling is possible without causing an air curtain collision with the shelf, an effect of saving energy can be obtained.

  In the above embodiment, the wind direction device 11 may be provided with a slide device. For example, with respect to a showcase as shown in FIG. 8 (1), as shown in FIGS. 8 (2) and 9, a slide device 48 comprising two rails 48a extending in the front-rear direction is provided on the lower surface of the shelf 8. The wind direction device 11 is engaged with the rail 48a so as to be movable in the front-rear direction. In the state in which the wind direction device 11 is pushed into the inside of the warehouse, the under-shelf duct 12 is blocked, and the low temperature cold air does not flow from the under-shelf outlet 46, so that an intermediate temperature zone A is formed in the warehouse. Therefore, since the inside temperature zone changes by changing the front and rear position of the wind direction device 11, the effect that the temperature zone can be easily switched is obtained.

  Moreover, in said embodiment, you may provide an illuminating device in the surface inside the warehouse of the fence 10. FIG. For example, as shown in FIG. 10, an illumination device 23 such as an LED light guide plate is disposed on the shelf side surface of the fence 10. In this case, since the heat generated by the lighting device 23 conducts heat to the fence 10 (and further radiates heat), the temperature of the fence 10 can be suppressed from being lowered due to the collision of the air curtain 7, and the dew condensation on the fence 10 can be prevented. Is obtained. Further, since the lighting device 23 is installed closer to the opening 1 than the front end of the shelf 8, it is possible to irradiate the product from the front, and the face of the product can be clearly seen, thereby improving the display effect. The effect of doing is also acquired.

  In the above embodiment, a flexible windproof device may be provided in the lower part of the fence 10. For example, as shown in FIG. 11, a flexible windproof device 24 such as a interdigital vinyl curtain is suspended from the lower part of the fence 10. In this case, the flexible windproof device 24 functions as a door, so that the effect of saving energy can be obtained because the intrusion of outside air heat is suppressed. Moreover, since the flexible windproof device 24 is a flexible form, even if it hits a hand when purchasing goods, since it deform | transforms freely, it does not become a hindrance and does not impair goods accessibility.

  In the above-described embodiment, a predetermined gap may be provided between the shelf plate of the shelf in the low temperature zone and the heat insulating wall. For example, as shown in FIG. 12, a shelf gap 25 is disposed between the shelf 8 in the low temperature zone and the heat insulating wall 2. In this case, the low-temperature cold air 14 that has flowed from the holes 9 is divided into an airflow that forms the air curtain 15 through the under-shelf duct 12 and an airflow that is guided to the lower shelf through the shelf gap 25. Even if it is not arranged, the air curtain 15 can be formed under the lower shelf, and the effect of improving the degree of freedom of changing the vertical position of the shelf is obtained.

  As described above, according to the present invention, a duct is formed by partitioning the inside of a product storage constituted by a front surface having an opening, a top surface including a heat insulating wall, a back surface, and a bottom surface with a panel, and the cool air in the duct is cooled. In the open showcase that keeps the goods in the refrigerator cold by blowing out from the cold air outlet on the front side of the top surface and forming an air curtain at the front opening by sucking from the cold air inlet on the front side of the bottom surface, A duct under the shelf that is arranged along the lower side of the product shelf provided in the warehouse and guides the cool air in the duct to the opening side from the hole provided in the panel on the rear side of the warehouse, and the opening side of the shelf A wind direction device that is provided at the tip of the shelf and guides cool air from the duct under the shelf in the downward direction, and is provided at a predetermined interval from the wind direction device to the opening side, and the flow path of the air curtain is provided between the wind direction device and the wind direction device. Form And a fence. For this reason, the low temperature cold air in the duct flowing into the warehouse through the hole under the shelf from the hole provided in the panel on the back side of the warehouse is converted into a downward airflow by the wind direction device at the shelf tip to form an air curtain. On the other hand, the airflow of the air curtain formed from the cold air outlet to the cold air inlet passes between the wind direction device and the fence. Since the two air curtains form a so-called two-layer air curtain at the tip of the shelf, a lower temperature zone is provided below the shelf than other shelves without a fence or a wind direction device. It will be formed stably. For this reason, it becomes possible to form a different temperature zone only by an airflow design about a desired shelf. Therefore, different temperature zones can be formed without physically sealing the interior with a door or the like as in the prior art, and the product accessibility is improved.

  As described above, the showcase according to the present invention is useful for a multistage open showcase in which an air curtain is formed in the front opening of a commodity storage in which a plurality of commodity shelves are installed in multiple upper and lower stages. Even if the inside of the storage is not physically sealed, etc., it is suitable for forming a different temperature zone in the storage only by the air flow design.

DESCRIPTION OF SYMBOLS 1 Opening part 2 Heat insulation wall 3 Inner panel 4 Duct 5 Cold air outlet 6 Cold air inlet 7,15 Air curtain 8 Shelf 9 Hole 10 Fence 11 Wind direction device 12 Duct under duct 13 Heat exchanger 14 Low temperature cold 16 Wind shield 17 Thermal insulation DESCRIPTION OF SYMBOLS 18 Blowout device 19 Windproof device 20 Slide shelf 21 Wind direction plate 22 Foldable fence 23 Illumination device 24 Flexible windproof device 25 Shelf gap 30 Side plate 34 Front surface 36 Top surface 38 Back surface 40 Bottom surface 42 Inside product storage 44 Inside panel 46 Bottom shelf outlet 48 Slide device 50 Ventilation holes 100-400 Showcase A Medium temperature zone B Low temperature zone

Claims (4)

A duct is formed by partitioning the interior of the product store consisting of a front surface having an opening, a top surface composed of heat insulating walls, a back surface and a bottom surface with a panel, and blows out cold air in the duct from a cold air outlet on the front side of the top surface. In the open showcase that keeps the goods in the warehouse cold by forming an air curtain at the front opening by sucking from the cold air inlet on the front side of the bottom,
A duct under the shelf that is arranged along the lower side of the product shelf provided in the warehouse and guides the cool air in the duct to the opening side from the hole provided in the panel on the rear side of the warehouse;
A wind direction device that is provided at the shelf tip on the opening side of the shelf and guides the cold air from the duct under the shelf downward,
A showcase provided with a fence that is provided at a predetermined interval from the wind direction device to the opening side and that forms a flow path of the air curtain between the wind direction device.   The showcase according to claim 1, wherein a blowout device having a rectifying function is provided at a bottom shelf outlet that blows out cool air from the bottom shelf duct.   The showcase according to claim 1 or 2, wherein the opening side of the shelf is configured by a slide shelf that is movable back and forth in the front-rear direction.   A retractable fence is provided on the fence, and another wind direction device is provided at a shelf tip on the opening side of the upper shelf of the shelf so that the airflow of the air curtain is guided from the wind direction device to the tiltable fence side. The showcase according to any one of claims 1 to 3, wherein the showcase is formed.

Images