JPH063342Y2 - Refrigerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a refrigerating showcase or a refrigerating device such as a storycase used for displaying material in a sushi restaurant or the like.

[Prior Art] As is well known, such a refrigerating apparatus has a machine room accommodating a compressor and the like and a display room accommodating a cooling pipe and the like, and expands and cools the refrigerant sent from the compressor. Through the pipe,
For example, the sushi material in a display room is cooled and then displayed and stored. Various structures having various structures have been proposed and used.

However, in all of them, as disclosed in, for example, Japanese Patent Laid-Open No. 62-37665, a structure is provided in which a cooling pipe is provided in the display chamber, a refrigerant is passed through the cooling pipe, and the display chamber is cooled by evaporation of the refrigerant. Further, the integrated display room and the machine room are arranged side by side.

[Problems to be Solved by the Invention] However, according to the conventional structure as described above, since the cooling pipe is in the display room, (1) the cooling pipe is taken in and out of the displayed object and cleaning of the display room. (2) Since the refrigerant directly evaporates in the cooling pipe, moisture in the display room is condensed and frost is formed on the outer peripheral surface of the cooling room, which accelerates the drying of the atmosphere in the display room. If you create adverse conditions for the displayed items or (3) stop the operation, the above frost will drop on the displayed items, forcing continuous operation, making it difficult to control the temperature inside the warehouse and saving electricity. In addition, (4) There is a temperature difference between the cooling pipe and the display room, so airflow due to natural convection occurs and the air to be displayed is particularly fresh food. The surface of fresh food will be discolored under the influence of current. There has been a variety of problems.

Therefore, the object of the present invention is to solve various problems as described above.
It is to easily assemble and provide a refrigerating device without (1) to (4).

[Means for Solving the Problems] In order to achieve this object, the refrigerating apparatus according to the present invention comprises:
A box-shaped machine room containing a compressor, a condenser, and the like, and a box-shaped display room for containing objects to be displayed are provided. The machine room is arranged below the bottom of the display room, not next to the display room. .

The display room includes a bottom plate at the bottom, a pair of side plates connected to the bottom plate at the lower end and extending upward, a top plate connected to the upper ends of the pair of side plates, an upper end supported by the top plate, and a lower end at the bottom plate. An inner box made of an inner windshield, the left and right ends of which are engaged with the pair of side plates, and a bottom heat insulating structure,
A pair of side frames connected to the heat insulating structure at lower ends and extending upward, a top frame connected to upper ends of the pair of side frames, an upper end supported by the top frame, and a lower end supported by the heat insulating structure. The left and right ends of the outer frame are formed of outer windshields engaged with the pair of side frames.

The outer box surrounds the inner box at a distance from the outer side thereof to define a cold air passage between the outer box and the inner box. In addition, the heat insulating structure at the bottom of the inner box defines a cooler chamber, a portion of which is recessed toward the machine room below and communicates with the cool air passage. A cold air circulation device and a cooler are disposed in the cold air circulation device, and the cool air is circulated in the cold air passage and the cooler chamber.

[Operation] The cooler through which the refrigerant flows is not inside the display room but inside the cooler room on the machine room side, and the display room is composed of an inner box and an outer box that define a cool air passage between them. The chamber communicates with this cold air passage. Therefore, when the blower fan, which is a cool air circulation device, is driven, the cool air cooled by the cooler flows into the cool air passage defined between the inner box and the outer box,
It does not flow into the display room.

[Embodiment] Next, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding portions. Further, the present invention will be described below in the case of being applied to a material case used in a sushi shop or the like, but as will be apparent to those skilled in the art, it can be used for storage or display of something other than sushi material, It is not limited to the story case.

FIG. 1 shows an outline of a news item case (refrigerator) 1 according to the present invention. The news item case 1 has a display room 2 at the top.
A machine room 3 is provided below the display room 2, and side covers 4 fitted to the top cover 34 are attached to both ends of the display room 2. Therefore, almost the entire length between both ends of the neta case 1 is the display room 2. When this material case 1 is placed on a counter (not shown) in a sushi restaurant, the front side in FIG. 1 is arranged toward the customer, and the rear side shown in FIG. 2 is the user side of the material case 1, that is, sushi. Arranged for craftsmen.

On the back side, as shown in FIG. 2, a power cord 5, a ground wire 6, a drain pipe 7, a rear cover 8, a ventilation port 9, a center frame 10, a sliding door 11, power on / off to the machine room 3. A switch S and the like. In addition, a transparent double windshield is installed on the customer side as described later.

3 and 4 are sectional views showing the net case 1 shown in FIGS. 1 and 2 along a vertical cross section and a horizontal cross section in the longitudinal direction, respectively, and can be understood from these figures. As described above, in the machine room 3 surrounding the cooler room 12 defined by recessing the heat insulating structure 21 in a concave shape, the electrical equipment board 13, the blower fan 14, which is a cold air circulation device, and the cooler 15, preferably A compressor 16, supported by rubber legs 17, condenser fans 18a and 18b, a condenser 19, a duct forming plate 33 and the like are arranged. The cooler 15, the compressor 16 and the condenser 19 are connected to each other by a refrigerating pipe (not shown) to form a refrigerating circuit.

Further, the cooler chamber 12 is partitioned into a blower fan side and a cooler side by a partition plate 64, and on the cooler side, a plurality of wind direction plates 32 are radially arranged near the discharge port of the blower fan 14. The air from the blower fan 14 is appropriately directed to the cooler 15. Further, in FIG. 4, reference numeral 30 indicates a thermostat, and reference numeral 31 indicates a temperature sensing portion thereof.

Display room 2 that defines a display space 65 inside the story case 1.
Is composed of an inner box and an outer box, and cold air passages 20, 28, 29 and 40 are formed between them. Cooler room mentioned above
Openings 12a and 12b, which communicate with the ends of the cold air passages 20 and 29, are formed in the upper portion of the blower fan 1.
The cold air that is pumped by 4 as indicated by the arrow in FIG.
Exit the cooler chamber 12 through the opening 12a described above, the cold air passage 20,
It circulates from the opening 12b back to the cooler chamber 12 via 28, 29 and 40. The cooling passage 40 is shown in FIG. 5 and communicates with the cold air passage 29. In FIG. 5, the cold air passages 29 and 40 appear to be blocked by the fixing member 42, but the fixing member 42 does not extend long along the longitudinal direction of the netacase 1, and in reality, is separated from each other. It is a relatively short one and is installed as a cold air passage 29, 40.
Are in communication with each other. Also, although not shown, the cold air passage
40 also communicates with passage 28.

The inner box of the display room 2 has a bottom plate 23 at the bottom, a pair of side plates 24 connected to the bottom plate 23 at the lower end and extending upward, a top plate 36 connected to the upper ends of the pair of side plates 24, and an upper end at the top. An inner windshield 39 supported by a plate 36, a lower end thereof supported by a bottom plate 23, and left and right ends thereof engaged with a pair of side plates 24 (see FIG. 5).
The outer box is composed of a heat insulating structure 21 at the bottom and the heat insulating structure.
A pair of side frames connected to 21 at the lower end and extending upward
25, a top frame 35 connected to the upper ends of the pair of side frames 25, an upper end supported by the top frame 35, a lower end supported by the heat insulating structure 21, and left and right ends on the pair of side frames 25. Outside windshield engaged
It consists of 38 (see Fig. 5). The outer windshield 38 is double glazing as shown. As shown in FIG. 3, a heat insulating material 26 is filled between each side cover 4 and the side frame 25, and the back surface of the bottom plate 23 extending from the upper part of the cooler chamber 12 to the cool air passage 28. An appropriate heat insulating material
22 is pasted.

The condenser fan described above does not consist of only one large-diameter fan, but is designed to reduce the height of the machine room 3.
It consists of a small diameter piece 18a, 18b. Also, two fans 1
By adopting 8a and 18b, it is possible to allow each fan to share the cooling area of the condenser 19 by sucking air, so that even if the diameter is small, the heat exchange efficiency of the condenser 19 does not decrease. The fan 18a is directed to the compressor 16 on the air discharge side, and the fan 18b is directed to the front side of the machine room 3, that is, the customer side, and is used for cooling the condenser 19 to generate hot air whose temperature has risen. Front cover 52 of machine room 3 (see Fig. 5)
It is designed to be directed to. Opening 51 in front cover 52
The warm air passes through the opening 51, passes through the passage 50 defined by the air guide 44 as shown by the arrow in FIG. 5, and flows along the outer surface of the outer windshield 38. Prevents windshield 38 from fogging.

As best seen in FIG. 5 which is a cross-sectional view taken along line VV of FIG. 4, two parallel legs 56 are provided from the bottom plate 58 of the machine room 3.
Protrude, and preferably supports the neta case 1 on the counter through a rubber pad 57. Also, display room 2
Insulation structure 21 consisting of bottom insulation material 27 that defines the outer box of
Is inclined upward from the left side to the right side in FIG. 5, and therefore the space in the machine room 3 is higher on the craftsman side (right side in FIG. 5) than on the customer side. Cooler in machine room 3 occupying a relatively large space
15, the compressor 16, the condenser 19 and the like are configured so that they can be sufficiently accommodated, and these equipments are installed near the craftsman side (upper side in FIG. 4) as shown in FIG. It

The bottom plate 23 of the display chamber 2 above the heat insulating structure 21 is also inclined and arranged at a predetermined distance so as to define the above-mentioned passage 20. The heat insulating structure 21 extends to the lower end portions of the outer windshield 38 and the inner windshield 39 or the vicinity thereof. The bottom plate 23 is bent in front of the lower end to approach the heat insulating structure 21, and a groove 66 extending in the longitudinal direction of the net case 1 is formed near the lower end. In this groove 66,
A base plate 43 is detachably arranged so as to be substantially flush with the upper surface of the bottom plate 23. Although not shown, the bottom plate 23 and the floor plate
It is common to lay "snowboard", "ginsu", etc. on the top of 43 and put the material on it.

The bottom plate 23 and the heat insulating structure 21 are formed with drainage ports 45 at appropriate places (two places as understood from FIG. 4 in the embodiment) so as to communicate with the above-mentioned groove 66 via the seal member 48. A drain hose 49 is connected to the drain port 45 via a connection pipe 47, and the drain hose 49 communicates with the drain pipe 7. The seal member 48 having an opening is held by forming an annular projecting portion 46 on the bottom plate 23 and fitting the projecting portion 46 into the opening of the seal member 48.

Further, as shown in FIG. 5, two rail portions 55 that receive the upper end of the sliding door 11 are formed at one end along the longitudinal direction of the top cover 34, and the upper end of the rear cover 8 of the machine room 3 is formed. Is formed with two rail portions 53 that receive the lower end of the sliding door 11 via a slider 54, and the sliding door 11 is left and right along the rail portions 53 and 55 (in the direction perpendicular to the paper surface in FIG. 5). Can be opened and closed. The rail 53 is placed on the upper end of the bottom plate 23 and is stably supported. The lower end of the bottom plate 23 is bent into an L-shape to support the lower end of the inner windshield 39 via a packing 41a, and the upper end of the inner windshield 39 is fixed to the top plate 36 and its fixing member 42 via a packing 41b. Supported. On the other hand, the lower end of the outer windshield 38 is supported by the lower end of the heat insulating structure 21 via a packing 37a, and the upper end thereof is supported by the other end along the longitudinal direction of the top cover 34 via a packing 37b.

Although not described in detail, reference numeral 59 in FIGS. 3 and 6 denotes a seal member for sealing the cooler chamber 12, and reference numeral 60 denotes drainage from the cooler chamber 12 in FIGS. 4 and 6. A drainage pipe for draining, reference numeral 62 in FIGS. 4 and 7.
Is a mounting plate for mounting the compressor 16, and in FIG. 8, reference numeral 63 is a sealing member.

[Effect of the Invention] As described above, according to the present invention, a cold air passage is defined between the inner box and the outer box of the display room, and the cool air is circulated from the cooler on the machine room side to the cold air passage. It is possible to cool an object to be displayed in the display room without disposing a cooler in the display room. In this way, since the cooling pipes are removed from the display room, the display room can be widely used, cleaning is facilitated, and the cooling pipes do not take moisture in the display room and the display room is not dried, so that the fresh The food can be preferably stored. Moreover, even if the operation of the refrigerating device is stopped, since there is no cooling pipe in the display room, frost does not drop from the cooling pipe, so even if the operation is stopped as desired, the adverse effect thereof will occur. Instead, power saving is possible.

Further, since the entire display room in which cold air is circulated between the inner box and the outer box of the display room is cooled, the temperature difference of the atmosphere in the display room becomes as small as possible, and no air flow is seen. It is possible to prevent discoloration and drying of the surface of fresh food.

Further, the inner box is composed of a bottom plate 23, a pair of side plates 24, a top plate 36 and an inner windshield 39 which are engaged or fitted with each other,
The heat insulating structure 21 is formed by the heat insulating structure 21, the side frame 25, the top frame 35, and the outer windshield 38 that engage or fit the outer box with each other, and the machine room 3 is arranged below the display room 2 to form a heat insulating structure. Since a part of 21 is depressed toward the machine room 3 to form the cooler room 12, the refrigerating apparatus can be easily assembled and disassembled with a simple structure.

[Brief description of drawings]

FIG. 1 is a perspective view of the refrigerating apparatus according to the present invention seen from the front side, FIG. 2 is a perspective view of the refrigerating apparatus seen from the rear side, and FIG.
FIG. 4 is a vertical sectional view of the refrigerating apparatus of FIG. 1 cut in the longitudinal direction, FIG. 4 is a horizontal sectional view of the machine room of the refrigerating apparatus of FIG. 1 cut in the longitudinal direction, FIGS. 7 and 8 are sectional views taken along the lines VV, VI-VI, VII-VII and VIII-VIII in FIG. 4, respectively. 1 ... Refrigerator (netansu) 2 ... Display room, 3 ... Machine room 12 ... Cooler room, 15 ... Cooler 14 ... Cold air circulation device (blower fan) 16 ... Compressor, 19 ... Condenser 20, 28, 29 , 40 ... Cold air passage 21 ... Insulation structure, 23 ... Bottom plate 24 ... Side plate, 25 ... Side frame 35 ... Top frame, 36 ... Top plate 38 ... Outside windshield 39 ... Inside windshield

Claims (1)

[Scope of utility model registration request] 1. A box-shaped lower machine room (3) accommodating a compressor (16) and a condenser (19), and a box-shaped upper display room (2) for accommodating an object to be displayed. The display room (2) is provided with a bottom plate (23) at the bottom, a pair of side plates (24) connected to the bottom plate (23) at a lower end and extending upward, and an upper end of the pair of side plates (24). Top plate
(36), the upper end is supported by the top plate (36), the lower end is supported by the bottom plate (23), and the left and right ends are the pair of side plates (2).
An inner box consisting of the inner windshield (39) engaged with 4),
Bottom heat insulating structure (21), pair of side frames (25) connected to the heat insulating structure (21) at the lower end and extending upward, and top frame connected to the upper ends of the pair of side frames (25)
(35), the upper end is supported by the top frame (35), the lower end is supported by the heat insulating structure (21), and the left and right ends are the outer windshields engaged with the pair of side frames (25). 38) and an outer box, which surrounds the inner box at a distance from the outside thereof and defines a cold air passage (20, 28, 29, 40) between the outer box and the inner box. The heat insulating structure (21) at the bottom of the inner box is a cooler chamber in which a part of the heat insulating structure is depressed toward the inside of the machine chamber (3) and communicates with the cold air passage. (12) is defined, and a cool air circulation device (14) and a cooler (15) are arranged in the cooler chamber (12) so that cool air is circulated in the cool air passage and the cooler chamber. Refrigerating device characterized by being configured.