JP2557707B2 - Showcase - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention The present invention relates to a showcase in which a transparent plate is provided on a side surface so that a storage chamber can be seen through.

2. Description of the Related Art In a showcase in which a transparent plate is arranged on the side surface, the lower end of the transparent plate is located above or at the same height or below the upper surface of the bottom wall of the cooling chamber formed below the storage chamber. Do either one or the other. As an example of the former, Shokai 60
-96566 gazette, and in the latter case, the dew from the transparent plate was collected by the dew receptacle and then led to the drain tray by piping. In Japanese Utility Model Laid-Open No. 60-96566, a water channel is formed at the lower end of the transparent plate located on the side of the storage chamber, that is, the upper end face of the heat insulation box, to collect the dew water adhering to the transparent plate and guide it to the cooling chamber. .

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the publications listed in the prior art, the collected dew water is introduced into the cooling chamber through the water channel, and is generated by defrosting the cooler from the drainage channel in the cooling chamber. It is led to the evaporating dish and drainage tank together with the defrost water. However, the lower end of the transparent plate was exposed to cooled cold air and part of it was evaporated, but most of it was drained from the drainage channel, and evaporation could not be performed sufficiently.

On the other hand, if the lower end of the transparent plate is located below the upper surface of the bottom wall of the cooling chamber, it will lead to the drain tray etc. in the machine room by piping, so pipe processing must be performed and it will occur in the machine room. The relatively warm air that was produced could not effectively act on the evaporation of dew drops.

Therefore, an object of the present invention is to provide a showcase in which dew drops collected from a transparent plate can be evaporated by warming the machine room.

[Structure of Invention]

Means for Solving the Problems The present invention provides a heat insulating wall having transparent plates on both left and right sides through which the inside can be seen, a machine room formed below the heat insulating wall and having an exhaust portion on the back surface, and the transparent plate. The dew evaporation path, which has a U-shaped receiving member which supports the lower end of the transparent plate and receives the dew attached to the transparent plate, and a dew evaporation passage made of metal whose upper surface is open for receiving the dew from the receiving member. Provides a showcase provided in the machine room, which is located in a space between an inclined portion which is located at a rear portion of the bottom wall of the heat insulating wall and is inclined rearward and upward, and a horizontal extension surface at the bottom of the bottom wall. To do.

Action Over the entire width of the exhaust side formed on the back of the machine room,
Since the dew evaporation path with good thermal conductivity that receives dew attached to both the inside and outside of the transparent plate guided by the receiver that receives the lower end of the transparent plate passes through the machine room The dew evaporation passage itself is exposed to the air (warm air) whose temperature rises as it is maintained at a high temperature, and the warm air flows along the upper surface of the dew evaporation passage and the dew is exposed directly to the warm air. It can be efficiently evaporated and vaporized.

On the other hand, by forming the inclined portion having a rearward rising inclination in the rear portion of the bottom wall of the heat insulating wall, the height of the exhaust portion in the machine room can be increased and the air resistance due to the bottom wall can be reduced. In addition, the warm air flowing in the relatively hot upper part of the warm air passes through the space between the inclined part and the bottom horizontal extension surface of the bottom wall, and the dew evaporation path is located in this space. Therefore, the evaporation and vaporization of dew can be promoted.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 is an open-type low temperature showcase in which a main body 1A is constituted by a heat insulating wall 2 having an opening 3 for storing and taking out products on the front surface, which is partitioned from the inner wall of the heat insulating wall 2 with an appropriate interval. By providing the plate 4 and the bottom plate 12, the cool air passage 7 in which the plate fin type cooler 5 and the blower fan 6 are housed and arranged, the storage chamber 9 in which a plurality of shelves 8 are arranged, and the opening 3
The blower fan 6 forcibly circulates the cool air that has been heat-exchanged by the cooler 5 by the blower fan 6 as shown in FIG. Thus, a so-called air curtain A formed by a cold air flow is formed in the opening 3 to cool the storage chamber 9.

Reference numeral 15 is a machine room formed below the heat insulating wall 2, configured to introduce outside air from an air inlet located on the front side and exhaust it from an exhaust section 19 formed on the back side.
In addition, a compressor 16, a condenser 17, a blower fan 18, a dew tray, and the like that constitute a cooling cycle are housed and arranged. Reference numeral 20 denotes a rectifying device such as a honeycomb material arranged at the air outlet 10, which rectifies the cold airflow blown as an air curtain A into the opening 3 to form a laminar flow. Reference numeral 21 denotes an illumination room formed in front of the air outlet 10, in which an elongated fluorescent lamp 22 for illuminating the storage room 9 is housed and arranged.

As the outside air introduced from the front side of the machine room 15 flows toward the back side, the outside air introduced by the heat generating devices (compressor and condenser) in the machine room is heated and gradually rises backward. In order to move, the inclined portion 25 having an inclined rearward rising is formed on the lower surface of the rear portion of the bottom wall 2A so as to reduce the air resistance of the lower surface of the bottom wall of the heat insulating wall. Therefore, the space P is formed by the lowermost horizontal extension surface of the bottom surface of the bottom wall 2A and the inclined portion 25.

Reference numeral 30 denotes a pair of left and right transparent plates that are attached so as to cover the left and right side surfaces of the heat insulation wall 2 and are formed so that the storage room 9 can be seen through. The heat insulation wall 2, the storage room 9, the lighting room 21, and the cold air passage 7 And the left and right side surfaces of the space below the bottom plate 12 so as to face each other, and the lower end thereof is arranged below the upper surface of the bottom wall of the heat insulating wall. This transparent plate 30 is a desiccant which maintains both the inside and outside plates 31 and 32 made of transparent glass in the shape of a square and a predetermined space between the plates and forms a heat insulating space between the plates. A rectangular annular spacer 33 (not shown). The transparent plate 30 is covered with an inorganic coating material such as ceramics at a portion facing each side so that the side surfaces of the heat insulating wall 2, the lighting chamber 21, the cold air passage 7 and the bottom plate 12 cannot be seen through. A shielding coating film 34 applied in a letter shape is formed.

40 is a leg member having a substantially L-shaped section extending downward from each of the four corners of the lower surface of the heat insulating wall 2, and a reinforcing member 41 having a substantially U-shaped section is provided between the front and rear leg members 40 with the U-shaped front side facing inward. Has been done. The outer surface of the reinforcing member 41 has a cross section. The support tool (42) is laid across the leg members (40). A plurality of (three in this example) positioning holes 43 are formed in the front-back direction on the upper surface of the support tool 42 at appropriate intervals.

Reference numeral 45 denotes a receiver placed on the support 42, and a groove 46 into which the lower end of the transparent plate 30 is inserted is formed on the upper surface thereof, and a projection 47 to be inserted into the hole 43 of the support 42 and a support are formed on the lower surface thereof. An abutting portion 48 as a decorative member that abuts on the outer surface (actually a side surface) of the tool 42 and makes the support tool invisible from the outside, a claw portion 49 that contacts the inner surface of the support tool 42, and the front and rear of the support tool 42. Covering part that covers the end
50 and 50 respectively. When the receiver 45 is placed on the support 42, the contact portion 48 and the claw portion 49 restrict the movement of the receiver 45 in the left-right direction, and the protrusion 47 and the covering portion 50 prevent the receiver 45 from moving. It regulates the movement in the front-back direction. It should be noted that the vertical movement of the receiving member 45 is limited to the groove 46 of the transparent plate 30.
It is regulated by being held between the transparent plate 30 and the support tool 42 when it is inserted into.

Further, in the groove 46 of the receiving member 45, a support protrusion 51 having a substantially L-shaped cross section is formed to hold the lower end surface of the transparent plate 30 in a floating manner and to keep the inner and outer side surfaces of the transparent plate 30 at a distance from the groove 46. ing. Further, in order to discharge the dew drops that have collected in the groove 46 along the surface of the transparent plate 30 to the machine room 15 side, from the inner surface of the rear part of the groove 46 toward the space P formed in the rear part of the machine room 15. A drainage channel 52 that is inclined downward is formed. A dew evaporation passage 55, such as a gutter, is provided below the drainage passage 52 of the pair of left and right receivers 45 and spans substantially the entire width of the space P. The dew evaporation path 55 has an open upper surface and is made of a metal having a good thermal conductivity so that the dew guided to the dew evaporation path 55 can be exposed to warm air in the machine room 15. Further, the evaporation tray 58, which guides defrost water generated during defrosting of the cooler 5 and is provided with a heating source 57 such as a heater or a condenser pipe, is a dew evaporation path.
Overflow the dew of 55 through the communication path 56,
A drainage tank 59 is arranged below the evaporation tray 58.

Reference numeral 60 is a side cover arranged so as to cover the left and right side surfaces of the machine room 15, and 61 is a front cover which covers the front surface of the machine room 15 so as to be openable and closable and which is provided with an air inlet for introducing outside air. Reference numeral 65 denotes a front decorative plate arranged so as to cover the front of the front wall of the heat insulating wall 2.

Next, the fixing of the transparent plate 30 will be described. The receiving member 45 is placed on the supporting member 42 which is laid across between the front and rear legs so that the groove 46 is located above. At this time, the protrusions 47 on the lower surface of the receiving member 45 are inserted into the holes 43 of the supporting member 42, respectively, and the contact portion 48 and the claw portion 49 of the receiving member 45 contact the outer surface and the inner surface of the supporting member 42, respectively. It is arranged (the front and rear ends of the support are covered with the cover 50). Therefore, the receiver 45 is restricted from moving in the left-right direction on the support tool by the contact portion 48 and the claw portion 49, and is moved in the front-back direction on the support tool 42 by inserting the protrusion 47 into the hole 43. Is regulated. Further, by inserting the protrusion 47 into the hole 43, the receiving member 45 can be positioned with respect to the supporting member 42.

Then, the lower end of the transparent plate 30 is inserted into the groove 46 of the receiving member 45 in this state to support the transparent plate 30 on both left and right side surfaces of the heat insulating wall 2. After that, the rear end, front end, and upper end of the transparent plate 30 are fixed to the showcase main body by mounting brackets 67, 68, 69, respectively. Therefore, the receiving member 45 is pressed downward by its own weight of the transparent plate 30 and is held between the transparent plate 30 and the supporting member 42, so that the vertical movement thereof is restricted. Further, the receiving member 45 can be fixed on the supporting member without using a fixing member, and in addition, the dew drop adhering to the transparent plate 30 is guided to the groove 46, and the heat insulating wall 2 from the drainage channel 52 into the machine room 15 Can be discharged without penetrating.

Since the dew evaporation passage 55 is directly exposed to the warm air guided to the rear space P of the machine room 15, the dew introduced to the dew evaporation passage 55 is directly heated by the warm air,
It is indirectly heated by the transfer heat of the dew evaporation passage heated by warm air, and is vaporized and evaporated, and is discharged from the exhaust portion 19 of the machine room to the outside of the machine room together with the warm air. In addition, since the rear portion of the bottom wall 2A of the heat insulating wall 2 is formed as the inclined portion 25 having the upward slope,
A space P is formed below the inclined portion 25, the height of the exhaust portion 19 of the machine room 15 can be increased, and the air flow from the front surface to the rear surface of the machine room 15 can be improved. . Further, the space P can be used as an arrangement space for the dew evaporation passage 55 such as a gutter.

〔The invention's effect〕

As described in detail above, according to the present invention, the dew adhered to both the inside and outside of the transparent plate received by the U-shaped receiver that supports the lower end of the transparent plate is disposed in the machine room. Since the dew evaporation path is exposed to the air (warm air) whose temperature rises as it passes through the machine room, the dew evaporation path is maintained at a high temperature and Since the warm air flows along the upper surface of the dew and is directly exposed to the warm air, the dew in the dew evaporation passage can be efficiently evaporated and vaporized. Moreover, the dew evaporation passage is provided in the machine room located in a space between a sloped portion having a rearwardly upward slope on the bottom wall of the heat insulating wall and a lowermost horizontal extension surface of the bottom wall, Since the height of the exhaust portion in the machine room is increased, the warm air flowing through the bottom wall flows smoothly from the lower part of the machine room to the upper part of the machine room. High-temperature warm air can be used, and evaporation of dew can be positively promoted.

[Brief description of drawings]

Each drawing shows one embodiment of the present invention, FIG. 1 is a sectional view showing a state of arrangement in a machine room, FIG. 2 is a perspective view of a showcase, and FIG. 3 is a sectional view taken along line AA of FIG. FIG. 4 is a perspective view showing the positional relationship between the receiver and the dew evaporation passage, and FIG. 5 is a sectional view centering on the receiver. 1 ... Showcase, 2 ... Insulation wall, 2A ... Bottom wall, 15 ...
… Machine room, 19… Exhaust part, 25… Inclined part, P… Space,
30: transparent plate, 45: receptacle, 46: groove, 52: drainage channel, 55: dew evaporation channel (gutter).

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideya Ikeda, 2-18 Keihan Hondori, Moriguchi City, Osaka Prefecture Sanyo Electric Co., Ltd. (72) Hiroshi Okamoto 2-18, Keihan Hondori, Moriguchi City, Osaka Prefecture Sanyo Electric Co., Ltd. (56) Bibliography SHO 61-49284 (JP, U)

Claims (1)

(57) [Claims] 1. A heat insulating wall having transparent plates on both left and right sides through which the inside can be seen, a machine room having an exhaust portion on the back surface formed below the heat insulating wall, and supporting a lower end of the transparent plate. , A U-shaped receiver for receiving dew adhered to the transparent plate, and a dew evaporation passage having an open top surface for receiving dew from the receiver, the dew evaporation passage being a rear portion of the bottom wall of the heat insulating wall. The showcase, which is provided in the machine room located in a space between an inclined portion that is located at the upper end and is inclined rearward and upward, and a lowermost horizontal extension surface of the bottom wall.