JPH0854171A - Refrigeration show case and defrost structure of glass side plate - Google Patents

Abstract

PURPOSE:To provide the defrost structure of a glass door and a glass side plate which is devised to prevent the increase of an installation space, by which entrance of dust is not caused, and which is prevented from the occurrence of a trouble even when water droplets are dropped. CONSTITUTION:A refrigeration storage case comprises an upper case body 1 provided at a front with a glass door 3, a lower machine room 2 provided at a front with a front panel 4, and a forward-facing opening part 21 formed between the front lower end of the case body and the upper surface of the front panel and communicated with a machine room. A part of hot air in the machine room is discharged through the opening to the front of the case body. The defrost structure of a glass side plate is constituted in such a manner that the side of the machine room ends in a place inside the outer surface of the glass side plate or a state approximately in alignment with the outer surface thereof and a hot air supply opening is formed in the side of the machine room in such a state to front on the lower end part of the glass side plate, and further, a hot air flow passage running around the lower end part of the glass side plate to the outer surface thereof is partitioned.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerating showcase, and more particularly to a structure for preventing the glass plate constituting the display room from being fogged by dew condensation or removing the dew condensation.

[0002]

2. Description of the Related Art FIG. 10 shows an example of a conventional refrigerating showcase. The refrigerating showcase comprises an upper case body 1 and a lower machine room (machine room) 2, and the case body 1 A glass door 3 is attached to the front end opening of the, and a front panel 4 is attached to the front of the lower machine room 2 so that the glass door 3 and the front surface of the front panel 4 are substantially flush with each other. A spacer 6 is installed between the main body 1 and the back wall 5 to form a passage 7. Therefore, when the fan motor 8 in the machine room 2 is operated, the outside air is sucked in through an intake port (not shown) provided in the front panel 4, and the outside air flows through the refrigerant condenser 9 and the refrigerant compressor 10 in the machine room 2. It is configured to be cooled and become hot air, which is discharged rearward from an exhaust port (not shown) on the rear surface of the machine room 2 and escaped upward through the passage 7.

Further, in another example of the conventional refrigerated showcase shown in FIG. 11, a glass door 3 is attached to the front end opening of the upper case body 1, and a drain pan 11 is provided on the lower outer periphery of the case body 1. A passage 7 is formed by a spacer 6 between the case body 1 and the back wall 5, and the front portion 12 of the drain pan 11 has a glass door 3
, The rear portion 13 of the drain pan 11 is disposed in the passage 7, and the front portion 12 and the rear portion 13 thereof are connected by the drain pan side portion 14 inclined rearward. Therefore, as in the above-mentioned conventional device, the fan motor 8 in the lower machine room 2 is operated to suck the outside air from the intake port (not shown) of the front panel 4 mounted in front of the machine room 2, and the outside air is absorbed. The refrigerant condenser 9 and the refrigerant compressor 10 in the machine room 2 are cooled and become hot air, which is discharged rearward from an exhaust port (not shown) on the rear surface of the machine room 2 to form the passage 7
Since the drain pan rear part 13 is heated as it flows upward through the drain pan, when the condensed water generated on the outer surface of the glass door 3 is received by the drain pan front part 12 and guided to the drain pan rear part 13 by the drain pan side part 14, It was designed to be evaporated by the heat of the warm air.

In addition to the conventional refrigerating showcase described above, there is also a defrosting structure for preventing lateral dew condensation, that is, a defrosting structure. In a refrigerating showcase for holding and displaying food or the like in a refrigerated state, in many cases, not only the front plate of the display room but also the side plate is made of a glass plate in order to enhance the display effect. Since this glass side plate is also cooled by the cold air inside the display room, dew condensation is likely to occur on the outer surface and fogging is likely to occur. Therefore, conventionally, a defrost structure as shown in FIG. 12 has been adopted. In FIG. 12, a machine room 53 for accommodating a refrigerant compressor (refrigerant compressor), a condenser (refrigerant condenser) and the like is provided below the heat insulating bottom plate 52 of the display room 51, and a side plate 54 of the machine room 53 is provided. Of the glass side plate 55, the hot air outlet 54c is provided adjacent to the glass side plate 55 on the overhanging upper plate 54b. Since the refrigerant compressor heats up due to the compression of the refrigerant and the condenser releases the heat of the refrigerant, the air heated by the exhaust heat becomes warm air E and flows out from the warm air outlet 54c to flow through the glass. Side plate 5
5 to evaporate the haze on the outer surface, or to warm the glass side plate 55 to prevent dew condensation (for example, Japanese Utility Model Laid-Open No. 62-1146).
(See Japanese Patent Publication No. 3).

[0005]

However, as shown in FIG.
The conventional refrigerating showcase shown in FIG. 0, FIG. 11 and FIG. 12 has the following problems. That is, FIG.
When the glass door 3 and the front surface of the front panel 4 shown in FIG. 0 are substantially flush with each other, dust and the like are likely to accumulate on the upper surface of the front panel 4, which is not preferable as a refrigerated showcase for food or the like. When the glass door 3 has a built-in heater for preventing dew condensation, it is necessary to increase the capacity of the heater in order to reliably prevent dew condensation on the front surface of the glass door 3, and as a result, the refrigeration characteristics of the showcase. Could be adversely affected.

Further, in the refrigerating showcase as shown in FIG. 11, since the drain pan rear part 13 is provided on the back surface of the case body 1 for evaporating the condensed water of the glass door 3, the passage 7 is formed relatively large. Therefore, this causes an inconvenience that requires an extra store area in which a refrigerated showcase is installed. Further, the same defect can be avoided by providing the drain pan side portion 14 on the side surface of the case body 1. In addition, it was very difficult to clean the dust pan rear part 13 when dust and the like accumulated.

Further, in the refrigerating showcase employing the defrost structure shown in FIG. 12, although the primary purpose and effect of removing the fogging of the glass side plate is achieved, the side plate of the machine room is outward. Because it is protruding
There is a problem that the installation space becomes large. In addition, the hot air outlet is exposed upwards, so dust easily enters the machine room from there, which lowers performance, and water drops that have fallen along the glass side plate stay on the upper part of the side plate. There were also problems such as damage to the paint.

Therefore, an object of the present invention is to solve the above-mentioned conventional problems, and in a refrigerating showcase having a glass door or the like mounted on the upper front side and a machine room on the lower side, It is intended to prevent condensation on the outer surface of the glass door or the like, or to easily remove the condensation. Another object of the present invention is to provide a dew condensation prevention (removal) structure for a refrigerated showcase that does not cause a large installation space, does not cause dust and the like to enter, and does not cause a problem even if water drops or the like spill. That is the purpose.

[0009]

In order to achieve the above object, the refrigerating showcase according to the present invention is, in the first aspect, provided with an upper case body to which a glass door or the like is attached in the front and a front panel in the front. A lower machine room attached and a front opening formed between the front lower end of the case main body and the upper surface of the front panel and communicating with the machine room. It is configured to be discharged to the front of the case body from the opening.

Further, according to the second aspect, in a refrigerating showcase having a refrigerating goods display room in an upper part and a refrigerating machine room in a lower part, and a side plate of the refrigerating goods display room is made of glass, the glass is The side plate defrost structure terminates the side part of the machine room inside the outer surface of the glass side plate or almost in alignment with the outer surface, and faces the lower end part of the glass side plate to form a hot air outlet on the side part of the machine room. It is formed by further forming a hot air flow path around the lower end of the glass side plate and reaching the outer surface thereof.

[0011]

In the above construction, when the temperature difference between the inside of the case body and the outside air causes dew condensation on the front surface of the glass door or the like attached to the front of the case body, or when dew condensation water occurs, the machine room Part of the warm air in the case is discharged to the front of the case body from the front opening formed between the lower end of the front part of the case body and the upper surface of the front panel, and rises along the front surface of the glass door or the like. , It is possible to suppress the occurrence of dew condensation on the front surface of the glass door or the like by the heating, or to easily evaporate the dew condensation water generated on the front surface of the glass door or the like, and at the same time, to collect dust on the upper surface of the front panel. Is automatically blown forward,
The top surface of the front panel can always be kept clean.
Also, refrigeration equipment (refrigerant compressor, condenser, etc.) in the machine room
The air heated by the exhaust heat becomes hot air and is blown out from the warm air outlet toward the lower end of the glass side plate, flows through the warm air flow path around the lower end, and flows out to the outer surface of the glass side plate. The warm air warms the lower end portion and the outer surface of the glass side plate while flowing in this manner to prevent dew condensation and evaporate the generated dew condensation to remove fogging.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 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 parts, and particularly, the same parts as those of the conventional device respectively. Description will be given with the same reference numerals. 1 and 2
In the refrigerated showcase 20, the upper case body 1
And a lower machine room (machine room) 2, and a front door opening of the case body 1 is attached with a double door glass door 3 having a built-in heater for preventing dew condensation, and in front of the lower machine room 2. Is attached with a front panel 4 that opens and closes the front of the machine room 2 by rotating about the lower end as a center of rotation, and the front surface of the front panel 4 is arranged behind the front surface of the glass door 3 by a dimension A, and The rear surface of the panel 4 is arranged behind the lower front end surface of the case body 1 by a dimension B. A fan motor 8, a refrigerant condenser 9 and a refrigerant compressor 10 are installed in the machine room 2, while a spacer 6 is installed between the case body 1 and the back wall 5 to form a passage 7. A front opening 21 is formed between the lower end of the front of the case body 1 and the upper surface of the front panel 4, and the opening 21 communicates with the inside of the machine chamber 2.

Therefore, by operating the fan motor 8 in the machine room 2, the outside air sucked from the suction port 22 provided in the front panel 4 cools the refrigerant condenser 9 and the refrigerant compressor 10 in the machine room 2. Then, most of it becomes warm air and is discharged rearward from an exhaust port (not shown) on the back surface of the machine room 2 and escapes upward through the passage 7. However, a part of the warm air is reversed and a forward opening is formed. 21 is discharged to the front side of the glass door 3 as indicated by an arrow, and gently rises along the front surface of the glass door 3, so that the glass door 3 and the case body 1
Condensation is less likely to occur on the front surface of the refrigerator, or the generated condensation water is likely to evaporate, so that the capacity of the condensation preventing heater built into the glass door 3 is reduced, and the manufacturing cost and consumption of the refrigerated showcase 20 are reduced. Energy can be easily saved. Moreover, the opening 21 has the fan motor 8
Since it is in the forward direction, which is the opposite of the discharge direction, the warm air discharged from the opening 21 to the front side of the glass door 3 has a relatively small flow rate and a small amount. It is possible to prevent the warm air from being blown to the customers in front of the refrigerated showcase 20 and to flow a small amount of warm air into the case body 1 when the glass door 3 is opened. It also reduces the deterioration of the cooling performance of the case 20.

Further, since the front surface of the front panel 4 is arranged behind the front surface of the glass door 3 by the dimension A,
Dust and the like are less likely to collect on the upper surface of the front panel 4, and warm air flows out forward through the frontward opening portion 21. Therefore, dust and the like that try to collect on the upper surface of the front panel 4 are automatically blown forward. As a result, the upper surface of the front panel 4 can be kept clean at all times, which is particularly suitable as a refrigerated showcase for food or the like. Further, even if the opening 21 is formed between the lower end of the front part of the case body 1 and the upper surface of the front panel 4, the rear surface of the front panel 4 is arranged rearward by the dimension B from the lower front end surface of the case body 1. Therefore, even when the glass door 3 is opened, it is difficult to see the inside of the machine room 2 from the front of the refrigerated showcase 20, and the refrigerated showcase 20 has a good appearance. Further, since the opening 21 forms a gap between the lower end surface of the front part of the case body 1 and the upper surface of the front panel 4, the front panel 4 is rotated at its lower end by pulling the upper end of the front panel 4 toward you. When pivoting forward around the center and opening, the upper surface of the front panel 4 does not come into contact with the front lower end surface of the case body 1, and therefore the front panel 4 can always be opened and closed smoothly.

Next, in the embodiment shown in FIGS.
The refrigerated showcase 30 is composed of an upper case body 1 and a lower machine room 2 which are connected by a left and right chassis 31, and a double door glass door 3 is attached to a front end opening of the case body 1 and a lower machine. A front panel 4 that opens and closes the front of the machine room 2 by rotating around the lower end is attached to the front of the room 2. A fan motor 8, a refrigerant condenser 9 and a refrigerant compressor 10 are installed in the machine room 2, while a spacer 6 is installed between the case body 1 and the back wall 5 to form a passage 7.
Further, a frontward opening 32 is formed between the left and right chassis 31 between the lower end of the front part of the case body 1 and the upper surface of the front panel 4.
It communicates with the inside. Mounting plates 33 each having a substantially L-shaped cross section are detachably attached to the front surfaces of the left and right chassis 31 between the lower end of the front part of the case body 1 and the upper surface of the front panel 4 by screws 34. At the front end,
Under the glass door 3, a shallow box-shaped drain pan 35 having a substantially U-shaped cross section that extends over substantially the entire width of the case body 1 is welded, and the rear surface of the drain pan 35 is directly pressure-bonded to the lower end surface of the front part of the case body 1, or a suitable rubber. The packing is sandwiched and pressed together, and the front panel 4 has a drain pan 35
Is arranged rearward by a dimension C from the front surface of the.

Therefore, when the fan motor 8 in the machine room 2 operates, the outside air sucked from the suction port (not shown) provided in the front panel 4 drives the refrigerant condenser 9 and the refrigerant compressor 10 in the machine room 2. The air is cooled and becomes hot air, and most of it is discharged rearward from an exhaust port (not shown) on the back surface of the machine room 2 and escaped upward through the passage 7, but part of the hot air is reversed and the forward opening. The part 32 is discharged forward along the lower surface of the drain pan 35 as shown by the arrow, and gently rises along the front surface of the glass door 3, so that this warm air can heat the drain pan 35 from below, and at the same time, Condensation on the front surfaces of the glass door 3 and the case body 1 can be suppressed, and the dew condensation water generated on the front surfaces of the glass door 3 and the case body 1 is drain pan 35.
When it is dripped at, the condensed water can be easily evaporated by the drain pan 35 heated by the warm air.
Moreover, as in the case of the above-described embodiment, since the hot air discharged from the opening 32 to the front side of the glass door 3 has a relatively small flow velocity and a small amount, this warm air is gently distributed along the front surface of the glass door 3. To prevent the hot air from being blown to the customer in front of the refrigerated showcase 30, and the amount of hot air flowing into the case body 1 when the glass door 3 is opened is small. The cooling performance of the refrigerated showcase 30 is less likely to deteriorate.

Further, since the front surface of the front panel 4 is arranged behind the front surface of the drain pan 35 by the dimension C, dust and the like are less likely to collect on the upper surface of the front panel 4 and the warm air is blown from the front opening 32. Since the air flows out forward, dust or the like that tries to accumulate on the upper surface of the front panel 4 is automatically blown forward, and as a result, the upper surface of the front panel 4 can be always kept clean.
It is particularly suitable as a refrigerated showcase for food and the like. Furthermore, since the drain pan 35 is provided only on the front surface of the case body 1 and does not exist on the rear surface or side surface of the case body 1, the store area where the refrigerated showcase 30 is installed can be effectively utilized, and the drain pan 35 can be relatively used. The refrigerated showcase 30 can be easily installed in a small space.

Further, since the mounting plate 33 is detachably attached to the front surfaces of the left and right chassis 31 with the screws 34, by removing the mounting plate 33 from the front surface of the chassis 31, dust and the like accumulated in the drain pan 35 are removed. It can be easily removed and is practically very convenient. further,
Since a gap is formed between the front lower end surface of the case body 1 and the upper surface of the front panel 4 by the opening 32, pulling the upper end of the front panel 4 toward you causes the front panel 4 to rotate around the center of rotation of the lower end. When the front panel 4 is pivoted forward and opened, the upper surface of the front panel 4 does not come into contact with the lower end surface of the front part of the case body 1, and therefore the front panel 4 can be smoothly opened and closed. In addition,
Although the drain pan 35 is fixed to the front surface of the chassis 31 by the mounting plate 33 in the above-described embodiment, a shallow box-shaped drain pan having a substantially U-shaped cross section that extends over substantially the entire width of the case body 1 below the glass door 3 is used as the case body. It is needless to say that the same operational effect as that of the above-described embodiment can be obtained by directly screwing to the lower end surface of the front portion of No. 1.

In the embodiment shown in FIG. 6, a refrigerating showcase 40 comprises an upper case body 1 and a lower machine room 2 which are connected to each other by a left and right chassis 41, and a double door type glass is provided at the front end opening of the case body 1. A door 3 is attached, and a front panel 4 that opens and closes the front of the machine room 2 by rotating about a lower end is attached to the front of the lower machine room 2, and an upper surface of the front panel 4 includes A recess 42 having an arc-shaped cross section is formed so as to extend from the front surface of the glass door 3 to the front end surface of the case body 1, and
The rear surface of the front panel 4 is arranged behind the lower front end surface of the case body 1 by a dimension B. Also, machine room 2
A fan motor, a refrigerant condenser, and a refrigerant compressor are installed therein as in the above-described embodiments, while a passage is formed between the case body 1 and the back wall, and further, the lower end of the front part of the case body 1 is formed. And an upper surface of the front panel 4, a front opening 43 is formed between the left and right chassis 41,
The opening 43 communicates with the inside of the machine room 2.

Therefore, when the fan motor in the machine room 2 is operated, the outside air sucked from the suction port (not shown) provided in the front panel 4 cools the refrigerant condenser and the refrigerant compressor in the machine room 2, Most of the warm air is discharged rearward from an exhaust port (not shown) on the back surface of the machine room 2 and escapes upward through the passage, but part of the warm air is reversed and the frontward opening 43 is used. Since it is discharged forward as indicated by the arrow and gently rises along the front surface of the glass door 3, this warm air can suppress dew condensation on the front surfaces of the glass door 3 and the case body 1, and the glass door 3 When the dew condensation water respectively generated on the front surface of the case body 1 drops into the recess 42 on the upper surface of the front panel 4, the inner surface of the front panel 4 is exposed to the warm air in the machine room 2 and the surface of the front panel 4 is exposed. Degree is relatively high, and openings 43
Since the warm air discharged from the front side hits the dew condensation water in the front panel recess 42, the dew condensation water in the front panel recess 42 can be evaporated very efficiently.

Moreover, as in the case of each of the above-described embodiments, the warm air discharged from the opening 43 to the front side of the glass door 3 has a relatively small flow velocity and a small amount, so that this warm air is generated.
Gently rise along the front of the refrigerated showcase 4
It is possible to prevent the warm air from being blown to the passengers in front of 0 and to reduce the warm air flowing into the case body 1 when the glass door 3 is opened, which deteriorates the cooling performance of the refrigerating showcase 40. It will be less. Even if the opening 43 is formed between the lower end of the front part of the case body 1 and the upper surface of the front panel 4, the rear surface of the front panel 4 is arranged rearward by the dimension B from the lower front end surface of the case body 1. Therefore, even when the glass door 3 is opened, it is difficult to see the inside of the machine room 2 from the front of the refrigerated showcase 40, and the refrigerated showcase 40 has a good appearance.

Further, since the opening 43 forms a gap between the lower end surface of the front part of the case body 1 and the upper surface of the front panel 4, the front panel 4 is rotated forward around the rotation center of the lower end. The upper surface of the front panel 4 does not come into contact with the lower end surface of the front part of the case body 1 when it is opened, so that the front panel 4 can always be smoothly opened and closed. In addition, even if the recess formed on the upper surface of the front panel 4 is changed to a shallow box-shaped recess having four raised sides, the same function and effect as described above can be obtained. Even in the refrigerating showcase in which the glass doors in each of the embodiments are replaced by simple glass windows that cannot be opened and closed, the present invention can be carried out in the same manner as in each of the embodiments, and the same effect as each of the embodiments can be obtained. Needless to say.

Next, an embodiment having a defrost structure (condensation preventing structure) for a glass side plate according to the present invention will be described. In FIG. 7, the refrigerated showcase 110 has a refrigerated goods display room 111 (hereinafter also referred to as a display room) at an upper part and a machine room 113 below the refrigerated product display room 111, which includes a refrigerant compressor, a condenser, and a condenser. A refrigeration system including a fan (fan motor) and the like is installed. In the display room 111, a front glass plate 117, a pair of glass side plates, that is, a glass side plate 119 and a retractable glass door 121 on the rear side, which are fitted in the main body frame 115, respectively, form a boundary with the outside, and the inside display items are displayed. Is clearly visible. The displayed item is placed on the bottom plate or the shelf frame 123. Although FIG. 8 shows a cross-sectional structure around the lower end of the glass side plate 119, the machine room 113 is provided below the heat insulating bottom plate 123 of the display room 111, and the lower end 119a of the glass side plate 119 is
It extends below the heat insulating bottom plate 123. The bottom plate 125 of the machine room 113 is integrally formed with the side plate 127, and the side plate 127 is flush with the glass side plate 119, but of course, may be inside the glass side plate 119. The side plate 127 is the lower end surface 11 of the glass side plate 119.
9b has a shoulder 127a facing each other with a space, and a rising portion 127b is connected to the lower surface of the heat insulating bottom plate 123,
Fixed. And, the air heated by the exhaust heat in the machine room 113, that is, hot air or hot air blows out hot air outlet 127c.
However, in FIG. 8, a shoulder 127 is formed along the direction perpendicular to the paper surface.
The holes a are formed at an appropriate pitch.

In the embodiment having the above-mentioned structure, the air in the display chamber 111 is cooled by the evaporator of the refrigerating apparatus (not shown), and the glass side plate 119 in contact therewith is also cooled. On the other hand, the air used for cooling the refrigerant compressor and the condenser of the refrigeration system becomes warm air (hereinafter referred to as warm air D), and the warm air outlet 127c on the shoulder 127a of the side plate 127 is heated.
Therefore, as shown by the arrow D in FIG.
It blows out toward the lower end portion 119a of 9. This warm air D
The chamfered portion 119c of the glass side plate 119 flows due to the viscosity of the warm air flow passage 129 defined by the lower end portion 119a, the shoulder portion 127a and the rising portion 127b of the side plate 127.
It flows upward along the outer surface. At that time, the lower end portion 119a and the outer surface of the glass side plate 119 are moderately warmed. Therefore, the fogging caused by the dew condensation on the glass side plate 119 causes
Removed or prevented. Further, even if water droplets are generated on the outer surface of the glass side plate 119, the water droplets will not be generated.
While it falls along the outer surface of the plate and stays on the lower end surface 119b, it is considerably evaporated by warm air.

Next, a modified embodiment in which the installation location of the hot air outlet of the side plate of the machine room 113 is changed will be described.
In the above, the side plate 227 detachably attached to the bottom plate 225 of the machine room 113 is the lower end surface 1 of the glass side plate 119.
19b has a shoulder portion 227a facing each other with a gap, and the rising portion 227b connected to the shoulder portion 227a is connected to the heat insulating bottom plate 123. The rising portion 227b is provided with a plurality of hot air outlets 227c. It is provided in advance. Since the hot air outlet 227c communicates with the hot air passage 129 as in the above-described embodiment, the warmed air from the machine chamber 113, that is, hot air, flows in the same manner and exhibits the same action. In the modified embodiment of FIG. 9, the other parts are the same as those of the above-mentioned embodiment, the same reference numerals are given, and the description is omitted.

[0026]

As described above, according to the refrigerating showcase of the present invention, dew condensation tends to occur on the outer surface of the glass door or the like attached to the front of the case body, or dew condensation water may occur. When a part of the warm air in the machine room
It is discharged to the front of the case body from the front opening formed between the lower end of the front part of the case body and the upper surface of the front panel and rises along the front surface of the glass door etc. Condensation on the front surface can be suppressed, or the condensed water on the front surface of the glass door can be easily evaporated, and at the same time, dust that collects on the upper surface of the front panel is automatically blown forward. Since the upper surface of the front panel can be kept clean at all times, the commercial value as a refrigerated showcase for food or the like can be easily increased.

Further, the side portion of the machine room ends on the same plane as or inside the glass side plate of the display room, and further, the temperature of the side portion of the machine room is provided in the hot air flow path that goes around the lower end portion of the glass side plate. Since the air outlet is opened, the installation space is smaller than the conventional one, and dust and the like can be prevented from entering the machine room. Furthermore, since warm air flows around the lower end of the glass side plate,
The heating effect of the glass side plate is also great, and the dew condensation prevention effect is also great.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a main part of the above embodiment.

FIG. 3 is a longitudinal sectional view of a main part in another embodiment of the present invention.

FIG. 4 is an enlarged view of a main part of the other embodiment.

5 is a view on arrow V in FIG. 4. FIG.

FIG. 6 is an enlarged vertical cross-sectional view of a main part in still another embodiment of the present invention.

FIG. 7 is a perspective view showing an entire refrigerated showcase provided with a defrost structure for a glass side plate according to the present invention.

FIG. 8 is a partial vertical cross-sectional view of the F portion of FIG. 7 taken along the vertical direction and viewed from the back side of the paper surface.

9 is a partial elevational sectional view, similar to FIG. 8, in a modified embodiment of the embodiment described in FIG.

FIG. 10 is a longitudinal sectional view of an essential part of an example of a conventional refrigerated showcase.

FIG. 11 is a fragmentary side view of another example of a conventional refrigerated showcase.

FIG. 12 is a vertical cross-sectional view showing an example of a defrost structure for a side plate in a conventional refrigerated showcase.

[Explanation of symbols]

1 ... Case body, 2113 ... Lower machine room (machine room),
3 ... glass door, 4 ... front panel, 20, 30, 40,
110 ... Refrigerated showcase, 21, 32, 43 ... Openings,
32 ... Drain pan, 42 ... Recess, 111 ... Refrigerator display room, 119 ... Glass side plate, 119a ... Lower end 119
b ... Lower end surface 127 ... Side plate (side of machine room) 127c
... Warm air outlet, 129 ... Warm air flow path, 227 ... Side plate, 22
7c ... Warm air outlet.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsuyuki Tanaka, 3-16, Hoshizaki Electric Co., Ltd., Sakaemachi South Building, Toyoake City, Aichi Prefecture (72) Inventor, Kazuhiro Yoshida 16, 3rd South Building, Sakaemachi, Toyoake City, Aichi Prefecture Hoshizaki Electric Co., Ltd. (72) Inventor, Kazuhiko Inoue, 3-16, South Building, Sakaemachi, Toyoake-shi, Aichi Hoshizaki Electric Co., Ltd.

Claims (7)

[Claims] 1. An upper case body having a glass door or the like attached to the front, a lower machine room having a front panel attached to the front, and a front lower end of the case body and an upper surface of the front panel. A refrigerated showcase that has a front-facing opening communicating with the lower machine room and is configured such that a part of the warm air in the lower machine room is discharged from the opening toward the front of the case body. 2. The refrigerated showcase according to claim 1, wherein the front surface of the front panel is arranged rearward of the front surface of the glass door or the like. 3. The refrigerated showcase according to claim 1, wherein a rear surface of the front panel is arranged rearward of a lower front end surface of the case body. 4. The refrigerated showcase according to claim 1, wherein a vertical gap is formed between the front lower end surface of the case body and the upper surface of the front panel. 5. The refrigerated showcase according to claim 1, wherein a drain pan is installed below the glass door or the like and above the opening. 6. The recess according to claim 1, wherein an upper surface of the front panel is located below a front end surface of the glass door or the like and / or the case body, and the upper surface of the front panel is recessed. Refrigerated showcase formed with. 7. A refrigeration showcase having a refrigerated goods display room at the upper part and a machine room for a refrigerating machine at the lower part, and a side plate of the refrigerated goods display room made of glass, wherein the side parts of the machine room are made of glass. End of the side plate inside or substantially aligned with the outer surface of the side plate, facing the lower end of the side plate made of glass to form a hot air outlet at the side part of the machine chamber, and the lower end of the side plate. A defrosted glass side plate of a refrigerating showcase, characterized in that a hot air flow path that goes around the part and reaches the outer surface is defined.