JP2004012021A - Showcase for cold/warm storage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a showcase for refrigerating/heating storage that have a damper in a structure for reliably opening/closing a chill outlet and a chill duct and especially for reliably preventing the blow-out of chill to a heating showcase section. <P>SOLUTION: An energizing means is provided, where the means rotatably supports a damper 71 for switching and opening/closing the chill outlets 25, 35 and a chill duct 64 provided on the back plate of the showcase for cold/warm storages to an outlet closing position for blocking the chill outlets 25, 35 for and opening the chill duct 64 and an outlet opening position for opening the chill jets 25, 35 and closing the chill duct 64 by a hinge section 72 provided at the upper portion of the chill jet, and energizes the damper 71 to an outlet opening position. Additionally, grip locking sections 27, 37 for locking a damper grip 73 projecting on the front of the damper 71 for retaining the damper 71 at the outlet closing position are provided on the lower surfaces of showcase shelves 20, 21. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a refrigerated showcase, and more specifically, to switch a storage room of a showcase main body for refrigeration or storage, or to simultaneously use an upper stage for refrigeration and a lower stage for refrigeration. The present invention relates to a refrigerated showcase that can be used.
[0002]
[Prior art]
As described in, for example, JP-A-7-103643 and JP-A-8-94232, a storage room provided in a showcase is divided into a plurality of upper and lower stages by a display shelf. In addition, the upper part of the display shelf can be used as a display part for warm storage, and the lower part can be used as a display part for refrigerator storage. In a food section such as a supermarket or a convenience store, plastic bottles of tea, coffee, etc. It is used for simultaneously displaying and selling beverages and canned beverages in a heated state and a refrigerated state.
[0003]
Such a refrigerated showcase is usually provided with a cool air duct that rises upward from a lower portion of the main body on the back side of the case main body, and blows cool air from the cold air duct to a display unit used for refrigeration. The displayed products are cooled, and the displayed products are heated by operating a heater provided on the upper side of the display shelf in a portion used for warming. When the entire case is used as a display unit for refrigeration, cool air flowing through the cool air duct is blown out from a cool air blowout unit provided at an upper part of the front of the main body, and an air curtain is formed on the front of the storage room by the cool air to form the front of the main body. Inhale from the bottom. Conversely, when the entire case is used as a display unit for storage, the operation of the refrigerator is stopped and all the heaters are operated.
[0004]
[Problems to be solved by the invention]
However, since the damper in the conventional cold storage showcase is a sliding type in the front-rear direction or opens and closes via a wire, the operation is not smooth and the opening and closing cannot be performed reliably. There was a time. If the opening / closing state of the damper is halfway, insufficient cooling may not be supplied to the refrigerated display unit, and cooling failure may occur. In addition, cooling air may be blown out to the warmed display unit, resulting in insufficient heating. Not only is there a problem, but there is also a problem that these results impose an extra load on the refrigerator or heater and increase the power consumption.
[0005]
Therefore, the present invention provides a cold / hot storage showcase including a damper having a structure capable of reliably opening and closing the cold air outlet and the cold air duct, and in particular, reliably preventing the blowing of cold air to the hot storage display unit. It is intended to be.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, a refrigerated storage case of the present invention is provided with a storage room having a display shelf, a refrigerator stored in a lower part of the storage room, and a rear plate provided on the back of the storage room via a back plate. A cold air duct, a heater for heating the goods displayed on the display shelf, and a switch for controlling the heater; a cold air duct opening to a rear plate below the base end of the display shelf; And a damper for switching between the cold air outlet and the cold air duct, and a damper for opening and closing the cold air outlet, wherein the damper is provided at an upper portion of the cold air outlet. Thereby, the cool air outlet is closed and the cool air duct is opened, and the cool air outlet is closed, and the cool air outlet is opened and the cool air duct is opened and the cool air duct is opened and rotatably pivotally supported. The damper A biasing means for biasing the damper to the outlet opening position is provided, and a handle locking portion for locking a damper handle protruding from a front surface of the damper to hold the damper at the outlet closing position is provided. It is provided on the lower surface of the display shelf.
[0007]
Therefore, according to the showcase for cold storage of the present invention, the opening and closing of the cool air duct and the cool air outlet can be reliably and smoothly performed by a simple operation, and the cool air is prevented from being blown out to the display unit for warm storage. it can.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a perspective view showing an embodiment of the refrigerator showcase of the present invention, FIG. 2 is a longitudinal sectional view of a main part, FIG. 3 is a perspective view of a damper, and FIGS. It is an outline sectional view showing an example of use.
The refrigerated showcase 10 shown in this embodiment is provided with upper and lower display shelves 20 and 30 in a storage room 11 having an open front, and together with a lowermost deck 40, an upper display 21 and a middle display. 31 is an open showcase with shelves provided with three display sections of a lower display section 41, and each side wall forming the case body has a heat insulating structure. Transparent side plates 12 are provided on both sides of the storage room 11, and a transparent ceiling plate 13 which can be opened and closed is provided at the upper front end of the storage room. At the front end of the case main body top plate 14, a cool air blowing portion 15 for using the whole case for refrigeration is provided, and at the lower front end of the storage room, it flows as an air curtain covering the front surface of the storage room. A cool air suction section 16 for sucking cool air is provided. Further, as shown in FIG. 4 and subsequent figures, a compressor 51, a condenser 52, an evaporator 53, a cool air circulation fan 54, and a refrigerator for operating and preserving the refrigerator, which constitute the refrigerator, are provided at the lower part of the storage room 11. A controller 55 and the like for controlling the operation of the heater when used are housed. A condenser inlet 56 is provided on the front of the pedestal, and an inspection lid 57 is provided on the side of the pedestal.
[0009]
As shown in FIGS. 2 and 4, the rear portion of the storage room 11 is provided with a rear panel 62 in front of a rear panel 61 having a heat insulating structure and a rear panel 63 in the rear. A cool air duct 64 through which cool air cooled by the evaporator 53 flows between the rear panel 61 and the rear panel 61, and hot air exchanged with refrigerant by the condenser 52 between the rear panel 63 and the rear panel 61 between the rear panel 63 and the rear panel 61. Refrigerator exhaust ducts 65 for exhausting air to the upper side are provided respectively.
[0010]
The display shelves 20, 30 provided in front of the back plate 62 have heaters 22, 32 for heating the product on the upper surface and lower ducts 23, 33 on the lower surface, respectively, and have shelf fences 24, 34 at the front end. And is provided with the front inclined downward. The rear end openings of the lower shelf ducts 23 and 33 communicate with the cool air duct 64 via the cool air outlets 25 and 35 provided in the back plate 62, and are connected to the front ends of the lower shelf ducts 23 and 33. Are provided with lower shelf outlets 26 and 36 for blowing cold air into an air curtain shape covering the front of the storage room.
[0011]
Dampers 71 (71a, 71b) having a shape as shown in FIG. 3 are provided at the cool air outlets 25, 35 of the back plate 62. The damper 71 has a hinge portion 72 using a spring hinge at an upper portion, and a damper handle 73 formed by bending a wire on the front surface. The hinge portion 72 is provided above the cool air outlets 25 and 35. The damper 71 is attached to each other to pivotally support the damper 71, thereby opening the cool air outlet 25 and closing the cool air duct 64, as shown in the upper display shelf 20 in the upper part of FIG. As shown in the lower display shelf 30, the cool air outlet 35 is closed and the cool air duct 64 is opened to be rotatable to an outlet closed position.
[0012]
Further, the spring hinge used for the hinge portion 72 acts in a direction to urge the damper 71 to the outlet opening position. In a normal fixed position, the damper 71 is in the outlet opening position and becomes the cold air duct 64. Is closed. In other words, the cool air flowing through the cool air duct 64 is blown from the cool air outlets 25 and 35 through the lower shelf ducts 23 and 33 to the front of the storage room 11 from the lower shelf outlets 26 and 36, and the dampers 71 (71a, 71b). The cool air duct 64 above the cool air duct is prevented from flowing. On the other hand, when the cool air outlets 25 and 35 are closed to open the cool air duct 64, the front end operating portion 74 of the damper handle 73 is connected to the handle locking portions 27 and 37 provided on the lower surfaces of the display shelves 20 and 30. The damper 71 (71a, 71b) is held at the outlet close position.
[0013]
As shown in FIGS. 4 to 7, the display case for cold storage formed in this manner can be used by switching the display portions 21, 31, and 41 to cold storage and hot storage, respectively.
First, FIG. 4 shows an example in which the entirety of the storage room 11 is used for refrigeration. In this case, the upper air damper 71a and the lower damper 71b are held at the outlet closed position to open the cold air duct 64. Then, the cool air cooled by the evaporator 53 is raised to the uppermost part of the cool air duct 64, and is blown out from the cool air blow-out part 15 at the front end of the top plate of the case main body to the front of the storage room 11. As a result, an air curtain is formed by cold air on the front surface of the storage room 11, and all the display units 21, 31, 41 in the storage room 11 are cooled to the refrigeration temperature. The cool air forming the air curtain is sucked into the cool air suction section 16 by the action of the cool air circulation fan 54 and circulated to the evaporator 53.
[0014]
FIG. 5 shows an example in which the upper display portion 21 is used for warm storage, and the middle and lower display portions 31 and 41 are used for refrigeration. In this case, the locked state of the damper handle 73 and the handle locking portion 27 in the upper damper 71a of the upper display shelf 20 is released, the upper damper 71a is set to the outlet opening position, and the lower damper 71b of the lower display shelf 30 is opened. Is the outlet closing position. On the other hand, the heater switch provided in the controller 55 is operated to operate the heater 22 of the upper display shelf 20. Thereby, the cool air rising in the cool air duct 64 is guided to the shelf lower duct 23 on the lower surface of the upper display shelf 20 by the upper damper 71a, and blows out from the lower shelf outlet 26 to the front of the storage room 11 below the upper display shelf 20. A cold air curtain was formed, the middle and lower display sections 31 and 41 were cooled to the refrigeration temperature, and the products displayed on the upper display section 31 on the upper display shelf 20 were provided on the upper display shelf 20. The heater 22 is brought into a state of being heated to the temperature for storage.
[0015]
FIG. 6 shows an example in which the upper and middle display portions 21 and 31 are used for warm storage, and the lower display portion 41 is used for refrigeration. In this case, the locked state between the damper handle 73 of the upper damper 71a and the lower damper 71b and the handle locking portions 27 and 37 is released to set both dampers to the outlet opening position, and the heater switch of the controller 55 is operated. Then, the heaters 22 and 32 of the upper display shelf 20 and the lower display shelf 30 are operated. Thereby, the cool air rising in the cool air duct 64 is guided to the shelf lower duct 33 on the lower surface of the lower display shelf 30 by the lower damper 71b, blows out from the lower shelf outlet 36, and flows into the front of the storage room below the lower display shelf 30. A curtain is formed, and the lower display section 41 is cooled to the refrigeration temperature, and the products displayed on the upper and middle display shelves 20 and 30 are heated to the refrigeration temperature by the heaters 22 and 32 provided on each display shelf. It will be heated.
[0016]
FIG. 7 shows an example in which the entire storage room 11 is used for storage. In this case, the upper and lower dampers 71a and 71b are normally set to the outlet opening positions, the operation of the refrigerator is stopped, and the heater switches of the controller 55 are operated to operate the heaters 22 and 30 of the upper and lower display shelves 20 and 30. A heater provided in the deck section 40 is also operated together with the heater 32. As a result, all the display units 21, 31, and 41 are heated to the storage temperature by the respective heaters.
[0017]
When the display units 21, 31, and 41 are switched between refrigeration and warm storage in this manner, the damper 71 is urged in the direction to close the cool air duct 64, so that the display unit 21, 31, and 41 are at the outlet opening position. The cool air duct 64 can be reliably closed, and the cool air does not blow out to the part used for warm storage, and all the cool air can be used for the part used for cool storage. Therefore, it is possible to prevent poor cooling of the refrigerated portion and poor heating of the warmed portion, and reduce the load on the refrigerator and the heater to reduce the power consumption.
The opening and closing of the damper 71 is performed by pulling the damper handle 73 protruding from the front surface of the damper to the front side and locking it to each of the handle locking portions 27 and 37, and from the respective handle locking portions 27 and 37 to the damper handle 73. , And automatically returns to the fixed position of the outlet opening position by the urging force of a spring hinge or the like, so that the opening and closing operation of the damper 71 can be performed simply and reliably. Further, the open / closed state of the damper 71 can be easily confirmed only by looking at the state of the damper handle 73 below the display shelves 20, 30.
[0018]
【The invention's effect】
As described above, according to the cold storage showcase of the present invention, it is possible to reliably and smoothly open and close the cold air duct and the cold air outlet with a simple operation, and cool air is displayed on the hot storage display unit. Blowing can be prevented. As a result, it is possible to prevent the occurrence of a cooling failure or a heating failure, and to reduce the load on the refrigerator or the heater to reduce the power consumption.
[Brief description of the drawings]
FIG. 1 is a perspective view showing one embodiment of a refrigerated showcase of the present invention.
FIG. 2 is a longitudinal sectional view of a main part.
FIG. 3 is a perspective view of a damper.
FIG. 4 is a schematic sectional view showing an example in which the entire storage room is used for refrigeration.
FIG. 5 is a schematic cross-sectional view showing an example in which an upper display portion is used for warm storage, and middle and lower display portions are used for refrigeration.
FIG. 6 is a schematic cross-sectional view showing the upper and middle display portions used for storage and the lower display portion used for storage.
FIG. 7 is a schematic sectional view showing an example in which the entire storage room is used for storage.
[Explanation of symbols]
REFERENCE SIGNS LIST 10 Refrigerator / shower case 11 Storage room 12 Transparent side plate 13 Transparent ceiling plate 14 Case body top plate 15 Cold air outlet 16 Cold air intake unit 20 Upper display shelf 21 Upper display unit 22 Heater 23 Shelf lower duct 24 Shelf fence 25 Cold air outlet 26 lower shelf outlet 27 handle latching section 30 lower display shelf 31 middle display section 32 heater 33 lower shelf duct 34 shelf fence 35 cold air outlet 36 lower shelf outlet 37 handle latching section 40 deck section 41 lower display section 51 compression Machine 52 Condenser 53 Evaporator 54 Cool air circulation fan 55 Controller 56 Inlet for condenser 57 Inspection lid 61 Back panel 62 Back panel 63 Rear panel 64 Cold air duct 65 Refrigerator exhaust duct 71 Damper 71 a Upper damper 71 b Lower damper 72 Hinge part 73 Damper handle 74 Front end operation unit

Claims (1)

A storage room having a display shelf, a refrigerator stored in a lower part of the storage room, a cool air duct provided on a back surface of the storage room via a back plate, and a product displayed on the display shelf is heated. Heater, a switch for controlling the heater, a cool air outlet opening to a back plate below the base end of the display shelf to communicate the cool air duct with the storage room, the cool air outlet and the cool air duct In a refrigerated storage case with a damper for switching and opening and closing,
The damper is closed by a hinge portion provided at an upper portion of the cool air outlet, the outlet close position for closing the cool air outlet and opening the cool air duct, and closing the cool air duct by opening the cool air outlet. And an urging means for urging the damper to the outlet opening position, and engaging a damper handle protruding from a front surface of the damper to lock the damper. A refrigerated showcase, characterized in that a handle locking portion for holding a damper at an outlet closing position is provided on a lower surface of the display shelf.

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