JP2011163574A - Showcase - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a showcase capable of changing upper and lower inside regions, and setting an inside temperature according to goods placed therein. <P>SOLUTION: This showcase includes an intermediate duct 12 vertically blocking a cold air circulation duct 5 by projecting a damper 16 into the cold air circulation duct 5 through an opening formed on a back panel corresponding to goods display shelves, and having a cold air supply port 5d of an upper region and a cold air inlet port 5e of a lower region, an upper evaporator disposed at a downstream side with respect to a state of projecting the damper 16 of the intermediate duct 12 into the cold air circulation duct 5, and a lower evaporator disposed at the upstream side. In a state of not projecting the damper 16 of the intermediate duct 12 into the cold air circulation duct 5, the inside of the showcase has the uniform temperature zone, and in a state of projecting the damper 16 of the intermediate duct 12 into the cold air circulation duct 5, the inside of the showcase is divided into upper and lower compartments, and a plurality of independent temperature zones can be set to each of the compartments. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a showcase capable of providing products in a plurality of temperature zones by partitioning a product display room into a plurality of temperature zones.

Conventionally, as a showcase capable of forming a plurality of temperature zones, the following configurations are known.
For example, in the showcase shown as the first method, an inner box 2 and an inner box 3 having an opening surface on one surface are placed in two upper and lower stages so that the opening portion comes to the front of the cold air circulation type open showcase 1. And the outer side of each inner box is covered with the outer box which has a heat insulation wall. Further, the inner box is made of a thin metal plate having a substantially U-shaped longitudinal section, forms a cold air ventilation duct with the inner surface of the outer box, and at the upper and lower ends of the opening of the inner box, A cold air outlet and a cold air inlet are formed toward the opening. An evaporator and a blower are installed in the ventilation duct.
As described above, there is known a showcase that can provide products in a plurality of temperature zones by arranging vertically independent cases vertically (see Patent Document 1).
As another example, the showcase shown as the second method has a product storage part in the showcase body having an open front, and the product storage part is surrounded by a heat insulating wall on the top side, the back side, and the bottom side. A plurality of product shelves are attached to the inside. A cooler is installed in the lower part of the showcase body 1, and a blower is provided on one end side of the cooler. In addition, a hollow partition shelf is detachably provided in the center of the product storage portion in the vertical direction, and the product storage portion is partitioned into an upper storage portion and a lower storage portion by the partition shelf.

  As described above, there is known a showcase that can provide commodities in different temperature zones on the upper and lower sides of the partition shelf as a single cooler (see Patent Document 2).

JP-A-10-205969 Japanese Patent Laid-Open No. 8-320175

By the way, in the showcase of the said 1st system, since the area | region in an upper and lower store | warehouse | chamber was fixed, there existed a subject if it could not be made to change an upper and lower temperature zone area | region according to a season.
Moreover, in the showcase of the above-mentioned second system, although the area in the upper and lower cabinets can be changed by changing the position of the partition shelf, only one cooler is installed in the lower part of the ventilation duct, so the upper area Since the internal temperature of the container is affected by the internal temperature of the lower region, there is a problem that the products in the upper region are limited.
In view of the above problems, an object of the present invention is to provide a showcase in which the upper and lower interior regions can be varied and the interior temperature can be set according to the product to be placed.

  In order to achieve the above object, the present invention provides a cool air circulation duct formed between a heat insulating wall of a case main body and a back panel in a cabinet, and a plurality of product displays in the vertical direction disposed in the cabinet. In a showcase equipped with a shelf, an air curtain is formed on the front side of the cabinet by sucking cold air blown from the upper outlet of the cold air circulation duct into the lower inlet, and the product in the cabinet is kept at a predetermined temperature The damper is detachably attached to the merchandise display shelf, and the damper projects into the cool air circulation duct through an opening formed in the back panel corresponding to the merchandise display shelf, thereby blocking the cold air circulation duct in the vertical direction. In addition, the front has a cold air inlet in the upper region and a cold air outlet in the lower region, each has an independent duct from the front to the rear end, and the front of the damper is protruded into the cold air circulation duct. An intermediate duct having a cold air outlet in the upper region and a cold air inlet in the lower region formed in such a manner that the independent ducts and the cold air circulation duct communicate with each other, and the intermediate duct on the uppermost product display shelf When the intermediate duct is attached to the upper evaporator provided on the downstream side of the state in which the damper of the intermediate duct protrudes into the cold air circulation duct and the intermediate duct is attached to the lowermost product display shelf, A lower evaporator provided upstream from the state in which the damper of the duct protrudes into the cold air circulation duct, and the inside of the cabinet is in the same temperature zone when the damper of the intermediate duct does not protrude into the cold air circulation duct In the state where the damper of the intermediate duct protrudes into the cold air circulation duct, the inside of the warehouse is partitioned into upper and lower chambers, and each chamber can be set to a plurality of independent temperature zones. And wherein the door.

The showcase is characterized in that it is provided at a plurality of locations in the vertical direction so that the ratio of the product display shelves in the upper region and the lower region can be changed.
In addition, in the state where the damper of the intermediate duct protrudes into the cold air circulation duct, the product display shelf is in an up and down independent state, a temperature sensor is provided in each region, the upper region is provided by the upper evaporator, and the lower region is provided by the upper region. The inside temperature is controlled independently by the lower evaporator.
Furthermore, the top wall of the upper region duct in the intermediate duct is also used as the lower surface of the commodity display shelf.

According to the showcase of the present invention, the cold air circulation is performed by causing the damper to protrude into the cold air circulation duct through the opening formed in the rear panel corresponding to the commodity display shelf, and detachably attached to the merchandise display shelf. The duct is cut off in the vertical direction, has a cold air inlet in the upper region and a cold air outlet in the lower region, and has independent ducts from the front to the rear end, and the damper in the cold air circulation duct An intermediate duct having a cold air outlet in the upper region and a cold air inlet in the lower region, formed in such a manner that the independent ducts and the cold air circulation duct communicate with each other. When the intermediate duct is attached to the product display shelf, the upper evaporator provided downstream from the state in which the damper of the intermediate duct protrudes into the cold air circulation duct, and the lower product display shelf When the intermediate duct is installed, a lower evaporator provided upstream from the state in which the damper of the intermediate duct protrudes into the cold air circulation duct is provided, and the damper of the intermediate duct protrudes into the cold air circulation duct. In the state where the interior is in the same temperature zone, and the damper of the intermediate duct protrudes into the cool air circulation duct, the interior is partitioned into upper and lower chambers, and each chamber is divided into a plurality of independent temperature zones. It is possible to display products in different storage temperature zones in the upper and lower directions.
Further, in addition to the arrangement of the upper and lower evaporators, by providing the openings at a plurality of locations in the vertical direction so that the ratio of the product display shelves in the upper region and the lower region can be changed, the ratio of the upper and lower regions is maximized. It can be changed to the limit.

  Furthermore, in the state where the damper of the intermediate duct protrudes into the cold air circulation duct, the product display shelf is in an up and down independent state, a temperature sensor is provided in each region, the upper region is provided by the upper evaporator, and the lower region is provided by the upper region. By performing the internal temperature management independently by the lower evaporator, the temperature management of the upper and lower regions becomes easy.

FIG. 1 is a side view of a showcase according to an embodiment of the present invention. FIG. 2 is a side view of an essential part of the intermediate duct according to the embodiment of the present invention.

Hereinafter, embodiments of a showcase according to the present invention will be described in detail with reference to the accompanying drawings.
In FIG. 1, 1 is an open front case body, 2 is an outer box (insulation housing) of the case body 1, and 3 is a U-shaped cross section that partitions the product display chamber 4 with a ceiling plate 3a, a back panel 3b, and a deck pan 3c. The inner box 5 is a cold air circulation duct defined between the inner box 3 along the inner side of the outer box 2.
The merchandise display chamber 4 is spanned between a pair of left and right brackets 6 supported by the shelf column via a shelf column (not shown) erected on the inner side of the back panel 3b, and is shown in FIG. The product display shelf 7 (7a-7f) of a stage is comprised.
The cool air circulation duct 5 includes a ceiling plate duct 5 a defined between the ceiling plate 3 a and the outer box 2, a rear duct 5 b defined between the rear panel 3 b and the outer box 2, a deck pan 3 c and the outer box 2. The deck pan duct 5c is defined between the top and bottom of the ceiling plate duct 5a. The cool air outlet 5d blows out the cool air downward, and the deck pan duct 5c is open upward. A cold air inlet 5e is provided for sucking the blown out cold air.
Thus, let the cold air suction side be upstream, and let the cold air blowing side be downstream.
A first evaporator 8 and a first internal fan 9 for blowing cool air are provided on the lower side of the rear duct 5b of the cool air circulation duct 5 and on the upper side of the rear duct 5b. The second evaporator 10 and a second internal fan 11 for blowing cool air are provided on the upstream side.

Reference numeral 12 denotes an intermediate duct that is detachably attached to the lower surface side of each commodity display shelf 7 between a pair of left and right brackets.
The intermediate duct 12 is an intermediate duct 12 for partitioning the merchandise display chamber 4 into an upper display chamber 4a and a lower display chamber 4b, and will be described in detail with reference to a side view of the main part of FIG.
The intermediate duct 12 is formed with an upper intermediate duct 14 and a lower intermediate duct 15 with a partition plate 13 therebetween, and the front end (the right end in FIG. 2) of the upper intermediate duct 14 is the upper cold air inlet 14a and the rear end (see FIG. 2 (left end), an upper cold air outlet 14b is opened, a lower cold air outlet 15a is opened at the front end (right end in FIG. 2) of the lower intermediate duct 15, and a lower cold air inlet 15b is opened at the rear end (left end in FIG. 2). ing.
The intermediate duct 12 is provided with a damper 16 projecting from the back duct 5b of the cool air circulation duct 5, and a seal member 16a such as a magnet is fixed to the tip. The damper 16 is slidable between a protruding position shown in the drawing and a retracted position hidden in the intermediate duct 12, and a seal member 16a such as a magnet is fixed to the tip.
That is, when the damper 16 is protruded from the rear duct 5 b of the cold air circulation duct 5, the seal member 16 a of the damper 16 is configured to contact the wall of the outer box 2 on the cold air circulation duct 5 side.

The intermediate duct 12 can be attached vertically to any shelf position from the uppermost product display shelf 7a to the lowermost product display shelf 7f of the plurality of product display shelves 7, and under the shelf of the lowermost product display shelf 7f. When the intermediate duct 12 is attached, the first evaporator 8 is installed on the upstream side of the damper 16 of the intermediate duct 12 when the damper 16 of the intermediate duct 12 is projected to the rear duct 5b. When the intermediate duct 12 is attached under the shelf of the uppermost product display shelf 7a, when the damper 16 of the intermediate duct 12 is protruded to the rear duct 5b, the second evaporator 10 has the intermediate duct 12 It is installed on the downstream side of the damper 16.
The change of the vertical position of the commodity display shelf 7 can be adjusted to a position where the damper 16 of the intermediate duct 12 does not interfere with the first and second evaporators 8 and 10.
Although not shown, the back panel 3b is provided with a plurality of top and bottom openings so that the damper 16 of the intermediate duct 12 can protrude into the back duct 5b, and the damper 16 does not protrude. For example, an up-and-down slide type closing plate for closing the opening is provided.
The closing plate is not limited to a sliding type, and may be a closing plate that is pushed by a damper 16 as long as a flow path for cold air is secured.

Next, the lower temperature sensor S1 when the lower display chamber 4b and the entire display chamber are in the same temperature zone as the internal temperature sensor is provided in the vicinity of the deck pan 3c and divided into upper and lower display chambers by the intermediate duct 12 The upper temperature sensor S2 of the upper display room is provided in the vicinity of the ceiling plate 3c, the lower temperature sensor S1, the first evaporator and the first internal fan, and the upper temperature sensor S2, the second evaporator. Operation of the second internal fan is controlled.
In such a configuration, when the entire product display chamber 4 is operated as a showcase in the same temperature range, although not shown, the damper 16 is in a retracted position hidden in the intermediate duct 12 or the intermediate duct 12. In the state in which the cold air is removed, the cold air cooled by the first evaporator 8 is converted into the cold air circulation duct 5 by the operation of the first internal fan 9 in the same manner as a normal cold-only showcase. After blowing out from the cold air outlet 5d through the ceiling duct 5c and forming an air curtain on the opening surface, the product display chamber 4 is cooled by circulating through the cold air inlet 5e again.
At this time, the second evaporator 10 and the second internal fan 11 are in a stopped state, and the entire product display chamber 4 is cooled only by the first evaporator 8 and the first internal fan 9.
Next, when the showcase is operated by dividing the product display chamber 4 into an upper display chamber 4a and a lower display chamber 4b, the intermediate duct 12 is placed between a pair of left and right brackets 6 as shown in FIG. It is installed on the lower surface side of the product display shelf 7c in the third row from the top, and the damper 16 protrudes from the rear duct 5b of the cold air circulation duct 5, and the damper 16 is placed on the wall of the outer box 2 on the cold air circulation duct 5 side. By closely contacting the end, the back duct 5b is blocked up and down.

In this state, the upper display chamber 4a has the ceiling plate duct of the cold air circulation duct 5 by the operation of the second internal fan 10 as shown by the solid arrow in the cold air cooled by the second evaporator 10. The upper display chamber is circulated through a path that is blown out from the cold air outlet 5d through 5c and sucked from the upper cold air inlet 14a and blown out from the upper cold air outlet 14b through the upper intermediate duct 14. 4a is cooled.
The upper display chamber 4a operates the second evaporator 10 and the second internal fan 11 so as to reach a predetermined internal temperature based on the upper temperature sensor S2. In this case, the second evaporator 10 is selected to have a capacity smaller than that of the first evaporator 8.
On the other hand, in the lower display chamber 4b, the cold air cooled by the first evaporator 8 is moved downward from the rear duct 5b of the cold air circulation duct 5 by the operation of the first internal fan 9 as shown by the broken arrow. The lower display chamber 4b is cooled by circulating the passage of the cool air blown out from the cool air suction port 15a through the lower intermediate duct 15 and the lower cool air outlet 15b and sucked from the cool air suction port 5e.
The lower display chamber 4b operates the first evaporator 8 and the first internal fan 9 so as to reach a predetermined internal temperature based on the lower temperature sensor S1.

In addition, about the ceiling wall which forms the upper intermediate | middle duct 14, a ceiling wall may be deleted, and you may make it also use the lower surface of the goods display shelf 7 as a ceiling wall, and in that case, the shelf board lower surface of the goods display shelf 7 For example, an L-shaped holding tool is provided to hold the side wall portion of the upper intermediate duct 14 so that the configuration of the intermediate duct can be simplified. Further, the bracket 6 may be held.
Further, the damper 16 is extended to the upper intermediate duct 14 and the lower intermediate duct 15 to form a hollow duct structure. It is also possible to constitute the lower surface of the lower cooling air inlet 15b of the lower display chamber 4b.

DESCRIPTION OF SYMBOLS 1 Case main body 2 Outer box 3 Inner box 4 Commodity display room 4a Upper display room 4b Lower display room 5 Cold air circulation duct 5a Ceiling duct 5b Rear duct 5c Deck pan duct 5d Cold air outlet 5e Cold air inlet 7 (7a-7f) Goods Display shelf 8 First evaporator 9 First internal fan 10 Second evaporator 11 Second internal fan 12 Intermediate duct 14 Upper intermediate duct 14a Upper cold air inlet 14b Upper cold air outlet 15 Lower intermediate duct 15a Lower cold air outlet 15b Lower cold air inlet 16 Damper S1 Lower temperature sensor S2 Upper temperature sensor

Claims (4)

  A cool air circulation duct formed between the heat insulation wall of the case main body and the back panel in the cabinet, and a plurality of product display shelves arranged in the vertical direction in the cabinet, and an upper outlet of the cool air circulation duct In the showcase in which the air curtain is formed on the front surface of the interior by sucking the cold air blown out from the lower suction port, and the product in the interior is kept at a predetermined temperature, it is detachably attached to the commodity display shelf, Through the opening formed in the back panel corresponding to the product display shelf, the damper protrudes into the cold air circulation duct to cut off the cold air circulation duct in the vertical direction, and the cold air inlet and lower part of the upper region forward Each region has a cold air outlet and has independent ducts from the front to the rear end, and the independent ducts and the cold air circulation ducts when the damper protrudes into the cold air circulation duct. An intermediate duct having a cold air outlet in the upper region and a cold air inlet in the lower region at a place formed in a communicating manner, and the intermediate duct when the intermediate duct is attached to the uppermost product display shelf When the intermediate duct is mounted on the lower product display shelf and the upper evaporator provided downstream from the state in which the damper is protruded into the cold air circulation duct, the damper of the intermediate duct is placed in the cold air circulation duct. A lower evaporator provided upstream from the protruded state, and in a state where the damper of the intermediate duct is not protruded into the cool air circulation duct, the damper of the intermediate duct is cooled in the same temperature zone. A showcase characterized in that the interior of the cabinet is partitioned into upper and lower chambers in a state of protruding into the circulation duct, and a plurality of independent temperature zones can be set for each chamber.   2. The showcase according to claim 1, wherein the showcase is provided at a plurality of locations in the vertical direction so that the ratio of the merchandise display shelves in the upper region and the lower region can be changed.   3. The showcase according to claim 1, wherein in the state in which the damper of the intermediate duct protrudes into the cold air circulation duct, the product display shelf is vertically independent, and a temperature sensor is provided in each region, The showcase is characterized in that the inside temperature is controlled independently by the upper evaporator in the area and the lower evaporator in the lower area.   The showcase according to any one of claims 1 to 3, wherein the top wall of the duct in the upper region of the intermediate duct is also used as the lower surface of the commodity display shelf.

Images