JP7034965B2 - Frozen / refrigerated showcase - Google Patents

Description

The present invention relates to a freezing / refrigerating showcase.

Freezing / refrigerating showcases are installed in food departments such as supermarkets, convenience stores, department stores, etc., and daily foods and fresh foods that require cooling are displayed on the shelves provided in the product display section, and the products are displayed. By circulating cold air in the section, the inside of the freezing / refrigerating showcase is kept at a low temperature.

Such frozen / refrigerated showcases include those with a translucent panel on the side plate so that consumers can see the products in the product display section even from the side of the frozen / refrigerated showcase. There is a freezer / refrigerator showcase with a back door with a translucent panel so that members can take out products from the back side. In a freezing / refrigerating showcase with such a translucent panel, dew condensation occurs on the translucent panel of the back door and side plate in summer or warm areas where the temperature difference between the cooling room and the outside air is large. There was a problem that the floor and surrounding articles were soiled by dew condensation water.

As a technique for suppressing the occurrence of such dew condensation, there is a technique shown in Patent Document 1. In the freezing / refrigerating showcase shown in Patent Document 1, the air in the machine room is directed upward from the machine room provided below the cooling case portion provided with the display room for displaying products and keeping cold. Equipped with an exhaust port for exhausting, the warm air after air cooling the condenser in the machine room is passed to the back side of the cooling case part, and the back door made of a translucent panel provided on the back side of the cooling case part is provided. By heating, the occurrence of dew condensation can be suppressed.

Japanese Unexamined Patent Publication No. 10-23280 (Page 2, Fig. 2)

However, in such a technique of Patent Document 1, the rear door can be heated by applying warm air from the machine room to the rear door of the cooling case portion, and the generation of dew condensation can be suppressed. The warm air discharged toward the door raises the temperature of the internal space of the cooling case, which may adversely affect the products that require cooling.

The present invention has been made by paying attention to such a problem, and provides a freezing / refrigerating showcase that prevents the occurrence of dew condensation on a translucent panel without adversely affecting a product that requires cooling in a cooling chamber. The purpose is.

In order to solve the above problems, the freezing / refrigerating showcase of the present invention is used.
A freezing / refrigerating showcase that circulates cold air in the product display section.
A ventilation means is provided on the upper portion of at least one side plate surrounding the product display portion, and a translucent panel is provided via a step portion recessed inward from the side plate. The ventilation means is an outer surface of the side plate. It has an outlet for blowing out the outside air substantially in parallel with the above, and the outlet is located above the step portion recessed inward and is characterized in that the outside air is blown out into the atmosphere .
According to this feature, since the outside air is constantly blown from the blowing means along the outer surface of the transparent panel, the outside air flowing along the outer surface of the transparent panel is before dew condensation occurs on the outer surface of the transparent panel. It is possible to prevent the occurrence of dew condensation on the translucent panel by moving away from the translucent panel. Since the outside air is used to prevent dew condensation in this way, the translucent panel is not heated, and the product that requires cooling in the cooling chamber is not adversely affected.

The outside air outlet of the blower means is characterized in that it extends wide along the translucent panel.
According to this feature, the occurrence of dew condensation can be suppressed over a wide range of the translucent panel.

The blower means is characterized in that an impeller is pivotally supported in the housing of the blower means, and the impeller is formed so as to extend in the width direction with respect to the translucent panel.
According to this feature, the impeller extending in the width direction can evenly blow air over a wide range of the translucent panel, so that the generation of dew condensation can be suppressed evenly over a wide range with respect to the translucent panel. Can be done.

A translucent panel is attached to the side plate via a step portion recessed inward, and the outside air can be blown from the outlet of the air blowing means along the side plate.
According to this feature, the outside air flowing along the side plate becomes a vortex at the step portion recessed inward, and the outside air is always attracted to the translucent panel side, so that the outside air can be blown close to the outer surface of the translucent panel. can.

The blowing means is characterized by including a wind direction directing mechanism capable of changing the blowing direction.
According to this feature, it is possible to blow air toward a portion of the translucent panel where dew condensation is likely to occur.

The blowing means is characterized in that it is detachably arranged on the outer surface of the side plate via a locking means.
According to this feature, the ventilation means can be attached to the season when dew condensation occurs and the freezing / refrigerating showcase where dew condensation occurs.

The blowing means is characterized in that it is attached above the side plate.
According to this feature, the ventilation means can be installed without spoiling the aesthetic appearance of the freezing / refrigerating showcase, and dew condensation on the translucent panel can be suppressed.

It is a perspective view which shows the refrigerated showcase in Example 1 of this invention. It is a side sectional view seen from the side which shows the structure of a refrigerated showcase. It is an exploded perspective view of the blowing means. It is a side view which shows the blast range of a blast means. It is a schematic diagram which shows the air flow path to a translucent panel by the cross section of the refrigerating showcase to which the air blowing means is attached. It is a schematic diagram which shows the air blowing path to a translucent panel by the cross section of the refrigerated showcase which incorporated the air blowing means in Example 2 of this invention.

A mode for carrying out the freezing / refrigerating showcase according to the present invention will be described below based on examples.

The freezing / refrigerating showcase according to the first embodiment will be described with reference to FIGS. 1 to 5. Hereinafter, the left side of the paper surface of FIG. 2 will be the front side (front side) of the freezing / refrigerating showcase, and the description will be given with reference to the vertical / horizontal directions when viewed from the front side. In the first embodiment, an open type refrigerated showcase with the front side open will be described. The showcase may be a closed type or a frozen one.

The refrigerated showcase 1 of this embodiment is installed to display products such as daily foods and fresh foods in a cold state at a supermarket, a convenience store, or the like. As shown in FIG. 1, the refrigerated showcase 1 is mounted on a case main body 2 provided above and provided with a cold storage chamber 20 for cooling and storing products (not shown), and on both sides of the case main body 2. It is mainly composed of side plate bodies 3,3'and ventilation means 40,40' detachably attached to the upper portion of the side plate bodies 3,3'. The side plate body 3 includes a window portion 5 to which a translucent panel 50 (glass plate), which will be described in detail later, is mounted, and is configured so that the inside of the refrigerator can be visually recognized from the outside through the window portion 5. Since the side plate 3'and the blower means 40'not shown have substantially the same configuration in which the side plate 3 and the blower means 40 are formed substantially left-right inverted, detailed description thereof will be omitted.

Furthermore, a plurality of refrigerated showcases 1 can be installed side by side on the left and right, and in this case, the side plate 3 and the blowing means 40 at the facing portions of the refrigerated showcases 1 are omitted. That is, when a plurality of refrigerated showcases 1 are arranged side by side, the side plate 3 and the blowing means 40 are attached to one side of the refrigerated showcases 1 arranged at both left and right ends, and the refrigerated showcase 1 is independent. When arranged in, side plate bodies 3, 3'and ventilation means 40, 40' are attached to both sides of the refrigerated showcase 1.

As shown in FIG. 2, the case body 2 is arranged inside the outer box 21 having a heat insulating structure having a substantially U-shaped side view with the front surface (left side in the figure) open, and the front surface is also open. It is composed of an inner box 22 having a substantially U-shaped side view, and the space inside the inner box 22 is a cold insulation chamber 20. The rear ends of the brackets 20b, 20b, ... Extending back and forth are attached to the back surface portion 22a of the inner box 22, and the shelf plates 20a, 20a, ... Are arranged on the brackets 20b, 20b, ... .. Goods (not shown) are displayed on the upper surfaces of the shelves 20a, 20a, ... And the bottom 22b of the inner box 22.

A cold air circulation path 23 is formed between the outer box 21 and the inner box 22, and an evaporator 24a and a blower 24b are installed at the vertical portion and the horizontal bottom portion of the cold air circulation path 23, respectively. The evaporator 24a is capable of cooling the air around it. Further, a heat insulating material 24c is provided on the front surface side of the evaporator 24a, and heat exchange between the evaporator 24a and the cold insulation chamber 20 side via the inner box 22 is suppressed. A cold air outlet 23a communicating with the cold air circulation path 23 is formed diagonally forward and downward at the front end of the upper part of the case body 2, and a cold air suction port 23b that opens upward is formed at the front end of the lower part of the case body 2. It is formed.

When the blower 24b is operated, the cold air cooled by the evaporator 24a flows upward in the cold air circulation path 23 as shown by the arrow, and is blown out from the cold air outlet 23a toward the lower suction port 23b. To. As a result, the cold air curtain 25 is formed on the open surface on the front surface of the case main body 2, and a part of the cold air flows into the cold storage chamber 20 to keep the displayed products cold.

As shown in FIG. 1, the side plate body 3 includes a side plate main body 4a having a D-shaped notch 4a opened on the front side of the refrigerated showcase 1 and having a horizontal lower end in a side view. It is mainly composed of a translucent panel 50 which is composed of a glass plate, an acrylic plate and the like and is fitted to a notch portion 4a of the side plate main body 4, and a blowing means 40 is attached to the upper end of the side plate main body 4. The location where the translucent panel 50 is provided is the window portion 5, and the inside of the refrigerator can be visually recognized from the outside of the refrigerator through the window portion 5. Further, since the side plate main body 4 is formed thicker in the width direction than the translucent panel 50, a step portion D described later is formed at the boundary between the side plate main body 4 and the translucent panel 50. Hereinafter, the blowing means 40 will be described in detail.

As shown in FIG. 3, the blower means 40 is mainly composed of a cover 41, a fan 42, and a back plate 43. The cover 41 is formed of resin, and has a substantially U-shaped cover main body 41a, side plates 41b, 41b'arranged so as to sandwich the cover main body 41a from the left and right, and attached to the cover main body 41a from the side, and a cover. It is mainly composed of a substantially L-shaped partition member 41c attached to the lower part of the back surface of the main body 41a. In the cover body 41a, a large number of slits S extending in the vertical direction extend from above the front plate portion of the cover body 41a to the center position and the curved portion of the front surface plate portion and the lower surface plate portion as a whole. It is formed in the shape of a strip of a book.

The fan 42 is mainly composed of an impeller 42a, a casing 42c that pivotally supports the impeller 42a, and a drive unit 42b including a motor for rotating the impeller 42a and a power feeding cord. The impeller 42a is composed of a shaft 42d pivotally supported by the casing 42c and fins 42e formed so as to extend radially from the shaft 42d. Further, by pressing the power button P provided on the cover main body 41a, the drive unit 42b is activated and the impeller 42a rotates clockwise.

The back plate 43 is mainly composed of a louver 43a as a wind direction directing mechanism and a gap adjusting plate 43b. The louver 43a is formed in a substantially L shape and is attached to the lower end on the front side of the back plate 43. The gap adjusting plate 43b is formed by parallelizing arcuate holes in the width direction, is attached above the louver 43a, abuts on the partition member 41c, and has a length in the lateral direction of the outlet F. The gap is adjusted so that the fingertips of the user do not come into contact with the fan 42. Detachable members 44, 44 are attached to the back side of the back plate 43, and the blower means 40 is detachably attached by being fitted to a receiving member (not shown) attached to the outer surface of the side plate main body 4. It has become like. Further, an outlet F is formed below the back plate 43, and is formed so as to extend in the width direction with respect to the translucent panel 50. The cover 41 is not limited to being made of resin, and may be made of metal.

The blowing means 40 is a cross-flow fan that blows outside air uniformly in the width direction, and the outside air sucked from the slit S of the cover body 41a by rotating the impeller 42a extending in the width direction is sucked into the back plate. An air passage is formed in the cover 41 so as to discharge from the outlet F below the 43. The louver 43a can be accessed from below the back plate 43, and the end portion on the upper side (see the partially enlarged view) of the louver 43a is pivotally supported by a screw and can rotate left and right around the screw. .. By adjusting the direction of each of the louvers 43a, the direction of the wind discharged from the impeller 42a can be adjusted, and the wind direction and range blown to the outside from the blowing means 40 can be adjusted.

FIG. 4 shows a diagram in which the power button P of the blower means 40 attached above the side plate main body 4 of the refrigerated showcase 1 is pressed to activate the blower means 40. The outside air blown from the outlet F is formed in a substantially fan shape from above to below because the outlet F is formed to spread in the width direction and the louver 43a diffuses the outside air more in the width direction. It is supposed to be done. Further, by operating the louver 43a, it is possible to intensively guide the blown air toward the place where the dew condensation is generated. Further, a vortex U that rotates inward when the outside air is blown from above by the blowing means 40 to the step portion D that is recessed inwardly and is formed at the boundary between the side plate main body 4 and the translucent panel 50. Is coming to occur.

As shown in FIG. 5, when the blower means 40 is activated, the impeller 42a rotates clockwise when viewed from the rear, so that outside air is sucked from the slit S of the cover body 41a and the translucent panel is taken from the outlet F. It is designed to blow air along the 50. By continuing to blow the outside air along the translucent panel 50 by the air blowing means 40, the air staying in the vicinity of the outer surface of the translucent panel 50 is sent out to the lower side of the side plate main body 4 before dew condensation occurs. ..

Specifically, the outside air blown from the outlet F flows downward along the side plate main body 4, and when it approaches the step portion D formed at the boundary between the side plate main body 4 and the translucent panel 50, the step portion D Since it has a shape that dents inward, which is the inside of the refrigerator, it is designed to generate a vortex U that rotates so as to be caught in the inward side. (See partially enlarged view). By generating this vortex D, the outside air blown down along the outer surface of the side plate main body 4 is attracted to the translucent panel 50 side. The outside air attracted to the vortex U travels on the outer surface of the translucent panel 50 and moves to the lowermost end of the translucent panel 50. After that, it is moved to the lower side plate main body 4 protruding outward, which is the outside of the refrigerator, and is sequentially blown down to the floor surface.

As described above, the air blowing means 40 operates independently of the operation of the refrigerating cycle, and the outside air blown from the outlet F is always blown down along the translucent panel 50. Therefore, the translucent panel It is designed to prevent air from staying near the outer surface of the 50 and causing dew condensation.

Further, since the air blowing means 40 is blown down from the upper side to the lower side, the blown air is cooled near the outer surface of the translucent panel 50 as it goes downward, and further, depending on the situation, becomes moist and has a water content. As the number increases, the specific gravity increases, and the light-transmitting panel 50 moves smoothly to the lower side. As a result, the air blown from the air blowing means 40 is stably blown down to the translucent panel 50 from above to below.

In addition, since the air temperature blown from the air blowing means 40 is substantially the same as the outside air temperature, the translucent panel 50 is not excessively heated, and the fresh food displayed in the refrigerated showcase 1 needs to be cooled. It does not adversely affect foods or daily foods.

As described above, since the blowing means 40 capable of blowing outside air is arranged along the outer surface of the translucent panel 50 constituting at least one side plate body 3 surrounding the case main body 2, the blowing means 40 blows air. The generated outside air flows along the outer surface of the transparent panel 50 and separates from the transparent panel 50 before dew condensation occurs on the outer surface of the transparent panel 50, that is, from the blowing means 40 to the outer surface of the transparent panel 50. Since the outside air is constantly blown along the line, it is possible to prevent the occurrence of dew condensation on the translucent panel 50. Since the outside air temperature is used to prevent dew condensation in this way, the translucent panel 50 is not heated, and the product that requires cooling in the cooling chamber is not adversely affected.

Further, since the outlet F of the air blowing means 40 extends wide along the translucent panel 50, it is possible to suppress the occurrence of dew condensation over a wide range of the translucent panel 50.

Further, in the blower means 40, the impeller 42a is pivotally supported in the casing 42c of the blower means 40, and the impeller 42a is formed so as to extend in the width direction with respect to the translucent panel 50. Since the impeller 42a extending to the above can evenly blow air over a wide range of the translucent panel 50, it is possible to suppress the generation of dew condensation evenly over a wide range with respect to the translucent panel 50.

Further, a translucent panel 50 is attached to the side plate body 3 via a step portion D recessed inward, and outside air can be blown from the outlet F of the air blowing means 40 along the side plate body 3. Therefore, the outside air flowing along the side plate body 3 becomes a vortex U at the step portion D recessed inward, and the outside air flowing along the side plate body 3 is always attracted to the translucent panel 50 side, so that the outside air flows on the outer surface of the translucent panel 50. Can be blown in close proximity.

Further, since the blowing means 40 includes a louver 43a capable of changing the blowing direction, it is possible to blow air toward the outer surface of the translucent panel 50 where dew condensation is likely to occur.

Further, since the blower means 40 is detachably arranged on the outer surface of the side plate 3 via the detachable member 44, the blower means 40 is provided in the season when dew condensation occurs and in the refrigerated showcase 1 where dew condensation occurs. Can be attached.

Further, since the blower means 40 is attached above the side plate body 3, the blower means 40 can be installed without spoiling the aesthetic appearance of the refrigerated showcase 1, and dew condensation on the translucent panel 50 can be suppressed. can.

Next, the second embodiment will be described with reference to FIG. The same components as those shown in the first embodiment are designated by the same reference numerals, and duplicate description will be omitted.

As shown in FIG. 6, the refrigerated showcase 11 of the second embodiment is changed to the side plate 14 in which the upper end of the side plate main body 4 of the first embodiment is partially cut out and the cutout portion 14a is formed. , The refrigerated showcase 1 with an integrated air blowing means in which the air blowing means 140 is incorporated in the notch portion 14a.

Since the blower means 140 is arranged in the notch portion 14a, the blowout port F is formed below the left side of the blower means 140. Further, the impeller 142a of the second embodiment is adapted to rotate counterclockwise when viewed from the rear by a motor and a power source (not shown), so that the outside air is sucked from the slit S formed above the cover 141. It has become.

The outside air sucked from the slit S of the blower means 140 passes through the air passage in the cover 141 and is blown down from the outlet F downward. Since the impeller 142a of the second embodiment is designed to rotate counterclockwise and the outlet F is arranged so as to project to the left side of the side plate main body 14, air is blown along the outer surface of the translucent panel 50. It's easier to do.

Specifically, the outside air blown from the outlet F flows downward along the side plate main body 14, and when it approaches the step portion D formed at the boundary between the side plate main body 14 and the translucent panel 50, the step portion D Since it has a shape that dents inward, which is the inside of the refrigerator, it is designed to generate a vortex U that rotates so as to be caught in the inward side. (See partially enlarged view). By generating this vortex D, the outside air blown down along the outer surface of the side plate main body 14 is attracted to the translucent panel 50 side. The outside air attracted to the vortex U travels on the outer surface of the translucent panel 50 and moves to the lowermost end of the translucent panel 50. After that, it is moved to the outer surface of the lower side plate main body 14 protruding outward, which is the outside of the refrigerator, and is sequentially blown down to the floor surface.

Although examples of the present invention have been described above with reference to the drawings, the specific configuration is not limited to these examples, and any changes or additions that do not deviate from the gist of the present invention are included in the present invention. Will be.

For example, in the above embodiment, the side plate body 3 is composed of the side plate main body 4 and the translucent panel 50, but the translucent panel 50 may be formed on the entire surface of the side plate without using the side plate main body 4.

Further, although the ventilation means 40 has been described as being attached to the upper side of the side plate main body 4 to blow air downward, the ventilation means 40 is attached to the lower side of the side plate main body 4 to blow air from the lower side to the upper side. May be. Further, the air may be blown from the rear side to the front side of the side plate main body 4 or may be blown from an oblique direction. It may be blown toward the translucent panel 50.

Further, although the blower means 40 has been described as a cross-flow fan, it may be composed of a propeller fan, a blower, or the like.

Further, although it has been described that one blower means 40 is arranged for one side plate main body 4, the present invention is not limited to this, and a plurality of blower means 40 may be arranged.

1 Refrigerated showcase (frozen / refrigerated showcase)
2 Case body 3, 3'Side plate body 4 Side plate body 14a Notch 40 Blower means 41 Cover 42 Blower 42a Impeller 42b Drive unit 42c Casing (housing)
43 Back plate 43a Louver (wind direction direction mechanism)
44 Detachable member (locking means)
50 Translucent panel D Step F Outlet S Slit U Swirl

Claims (5)

A freezing / refrigerating showcase that circulates cold air in the product display section.
A ventilation means is provided on the upper portion of at least one side plate surrounding the product display portion, and a translucent panel is provided via a step portion recessed inward from the side plate. The ventilation means is an outer surface of the side plate. It has an outlet that blows out the outside air substantially in parallel with the above, and the outlet is located above the step portion that is recessed inward and is designed to blow out the outside air into the atmosphere. Refrigerated showcase. The freezing / refrigerating showcase according to claim 1, wherein the outlet is widely extended along the translucent panel. 2. Frozen / refrigerated showcase described in. The freezing / refrigerating showcase according to any one of claims 1 to 3 , wherein the blowing means includes a wind direction directing mechanism capable of changing the blowing direction. The freezing / refrigerating showcase according to any one of claims 1 to 4 , wherein the blowing means is detachably arranged on the outer surface of the side plate via a locking means.

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