JPS60164187A - Cold-storage and hot-storage changeover type showcase - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a refrigerated/warm storage switchable showcase equipped with a heating device.

Structure of the conventional example and its problems FIGS. 1 to 4 show a conventional refrigerated/heated storage switching type storage case. The configuration of this conventional example will be explained below with reference to FIGS. 1 to 4.

In the figure, 1 is a storage room 2, a cooling room 3, and a machine room 4.
This is the main body of a showcase that can be switched between refrigerated and heated storage. The storage room 2 has a transparent door 5 that opens and closes an opening 5' formed in the front, transparent left and right side walls 6, 6', a back wall 7,
Top wall 8, bottom plate 9, and four supports 10a, 10b
, 10C, and 10d. and side wall 6+
” + Back wall 7, top wall 8. Bottom plate 9 is connected to the support 10.
a, 1 ob.

10c and 10d are fixed to form a storage chamber 2. The cooling chamber 3 is located below the bottom plate 9, and is thermally separated from the machine room 4 by a container-shaped bottom wall 11 made of a heat insulating material. A compressor 12 is installed in the cooling chamber 3. Capacitor 13. Dryer 14° Capillary tube 15. The evaporator 16 of the cooling system including the evaporator 16 is installed, and a fan motor 17 for forcibly circulating cold air into the storage chamber 2 is installed on the leeward side of the evaporator 16.

The bottom plate 9 is provided with a discharge port 18 and a suction port 19, and the discharge port 18 and the suction port 19 are opened along the side walls 6, 6' on the side not facing the door 5. The fan motor 171d is arranged near the discharge port 18 and parallel to the discharge port 18.

The machine room 4 is located at the lower part of the main body 1, and contains the compressor 12 of the cooling system. Capacitor 13° Dryer 1
4. A capillary tube 15 is installed. In order to improve heat dissipation from the machine room 4, a condenser fan motor 20 is installed inside the machine room 4. The outer peripheries of the cooling chamber 3 and the machine chamber 4 are covered with a grille 21 extending over the slits 21'. Reference numeral 22 is a drain pan, and drain water is passed through the drain hole 23. to the evaporator 1θ. Drain tube 24
It is led to the drain pan 22 via. Sunda machine room 4
Casters 25 are provided at the bottom of the unit to enable transportation.

A partition wall 26 is installed in the center of the storage room 2 to divide the storage room 2 into a refrigerating room 2a and a refrigerating/warming switching room 2b. The main body 30 of the partition wall 26 consists of two upper and lower metal plates 28 and 29 that cover the heat insulating material 27 of the partition wall 26 and suction ducts 31 provided on both sides thereof. It is formed by a discharge duct 32. and suction duct 31
is located on the extension line -L of the discharge port 18, and the discharge duct 32 is located on the extension line of the suction port 19. A heater 33 is attached to the inner surface of the metal plate 28 at the top of the main body 30 using aluminum foil or the like, and the metal plates 28 and 29 and the heat insulating material 27 are fixed to the side surface of the main body 30 by a Z-shaped plastic plate 34. are doing.

The suction duct 31 is located on the side of the main body 30, and
0 is the plastic plate 3 on the side of the main body 3o.
It is a Z-shaped plastic moon 30a similar to No. 4, and has a rectangular cylindrical shape with openings 35a and 35b on the upper and lower sides.

The lower opening 35b has a shutter 37 attached to the entire area of the opening 35b so as to be openable and closable with the center point 1IllI36. - Furthermore, a cut-and-raised portion 31a is provided in the lower part of the outer peripheral side of the suction duct 31 in the horizontal inward direction over the entire opening 36b. It's a trench.
Since the discharge duct 32 and the suction duct 31 have a symmetrical shape, the shutter 37. lt lower openings 35a, 35b
Since the shafts 36 and 36 have the same configuration, a detailed explanation thereof will be omitted, and the same parts will be described with a dash added to the figure number. The suction duct 31 and the discharge duct 32 are the support body 10a.

10b, 10c, and 10d, and the main body 30 is received by a Z-shaped plastic plate 30'.

Then, a gas vent 38 is provided around the partition wall 260,
Side wall 6.6', door 5. Refrigerating room 2 in contact with back wall 7
a and the refrigerating/warming switching chamber 2b are thermally sealed.

Next, an explanation will be given of the operation when the refrigerated/heated storage switchable storage case described in 1. is put into refrigerated operation.

A thermostat (not shown) having a heat sensitive part fixed in thermal contact with the evaporator 16 connects the compressor 12 of the refrigeration system.
starts, compressing and circulating the refrigerant sealed in the cooling system. Then, it is condensed in the condenser 13, passed through the dryer 14, and the pressure is reduced by 4.
, is evaporated in the evaporator 16, and the evaporator 16 is cooled. The cooling fan motor 17 sends cold air to the lower part of the storage chamber 2 through the discharge port 18 .

At this time, 74 of the suction duct 31. The ivy 37 and 74 of the discharge duct 32. The IQ is set in the state where the ivy 37' is pushed up in one direction with a nondle (not shown).

I'm here. The opening 35a of this ζ-shaped suction duct 31,
The opening 368' of the discharge duct portion 32 is opened.

Since the small suction duct 31 opens in the same direction as the cold air outlet 18, the cold air rises along the side wall 6' and hits the partition wall 26. The water flows along the lower surface of the main body 30, passes through the opening 36a, and flows into the refrigerating/warming switching chamber 2a. Then, the cold air cools the products in the refrigerating/warming switching chamber 2a] and then passes through the opening b35a' of the discharge duct 32 and is sucked into the suction port 19.

Next, a description will be given of when the refrigerating/warming switching chamber 2a is set to hot storage. Each shutter 37, 37' is lowered into the cut-out portions 31a, 31a' using a seven-stroke bolt (not shown) to close each opening 35b, 36b' until it is fixed (
(shown by the dotted line in Figure 4). The heater 33 can still be turned on by switching the refrigerating/warming selector switch (not shown) to the warming side.
is energized. Since the heater 33 is attached to the metal plate 28, it heats the metal plate 28 when it is energized.

For this reason, the product in the refrigerated/warm storage switching chamber 2b is heated to keep the product warm. At this time, the refrigeration only room 2d circulates cold air by the fan motor 17 to cool the refrigeration only room 2a, as in the case of the above-mentioned refrigeration operation.

And the cold air flowing out from the discharge port 18 is on the side? 6/ It rises along the inside and hits the lower part of the suction duct 31. However, since the drainer 37 of the suction duct 31 is closed, all the rising cold air flows to the lower surface of the partition wall 26 and is sucked through the suction port 19. At this time, the shutter 37' on the side of the discharge duct 32 is also closed, and the periphery of the partition wall 26 is sealed by the gasket 38, so cold air does not enter into the refrigerating/heating switching chamber 2b. This made it possible to keep it warm without causing any problems.

However, when the refrigerating/warming switching chamber 2b is set to hot storage, the suction duct 31. an opening 36b of the discharge duct 32;
35b' is Nyatta 37, 37', which is thermally isolated from the refrigerating compartment 2a, but since it is heavy, there is a lot of heat loss, and the K that maintains the temperature of the refrigerating/warming switching compartment 2b is ,
This consumes a lot of heater input. Since the shutter 37 is still warmed up, the cold air discharged from the refrigerating room 2a is warmed and the operation rate of the cooling cycle becomes high. The temperature of the products around the suction duct 31 and discharge duct 32 of the refrigerating/warm R switching chamber 2b was becoming low under the influence of the cold air from the refrigerating room 2a.

In addition, since the shutters 37 and 37' are located at the lower part of the partition wall 26, when small products are placed in the refrigerating/warming switching chamber 2b, the suction duct 31. Opening 35a of discharge duct 32
, 35. At this time, each shutter 37 and 37' are closed, so the product stops at each shutter 37 and 37'. However, this depressed product has the disadvantage that it is difficult to see, is fragile, and is difficult to take out even if it is found.

When the storage room 2 is refrigerated, a part of the cold air discharged from the discharge port 18 is transferred to the opening 3tsb of the suction duct 31.
, and cools the refrigerating/warming switching chamber 2b, but since the cold air enters the refrigerating/warming switching chamber 2b only by the dynamic pressure of the cold air, the amount of cold air entering the refrigerating/warming switching chamber 2b is However, it has the disadvantage that the temperature of the product is higher than that in the refrigerating room 2a.

Purpose of the Invention The present invention eliminates the drawbacks of the conventional example described above. When the upper and lower storage compartments are set for hot storage and cold storage, heat loss in the compartment is further reduced, power is saved, and the compartment can be used for refrigeration. When this occurs, the temperature of the product in the refrigerated/heated storage compartment is maintained lower by drawing in a large amount of cold air.

Structure of the Invention In order to achieve the above object, the present invention provides a retractable shutter on the upper and lower surfaces of the opening on both sides of the partition wall, and extends diagonally downward from the lower outer periphery of the opening of the suction duct in the partition wall. Equipped with an extending wind direction plate, it enables power-saving operation during combined refrigeration and heating operation, and also maintains low product temperature in the refrigeration/warming switching room during refrigeration/heating operation.

DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings, but the same components as those of the prior art will be given the same numbers and detailed explanations thereof will be omitted.

Reference numerals 39 and 39' denote upper shutters 11 provided on the upper surfaces of the suction duct 31 and the discharge duct 32. and suction duct 31. From approximately the center of the outer side surface of the discharge duct 32,
L-shaped elongated plates 40, 40' are taken out in the longitudinal direction of the suction duct 31 and the I-discharge duct 32. And suction duct 31. The side surface of the discharge duct 32 and the L-shaped elongated plate 40.
The width of the grooves 42 and 42' formed by the grooves 40' and 40' is slightly larger than the thickness of the upper part 39 and 39'. The outer surface is located on the surface facing the openings 35a and 36a'.
Cut and cut 41.41' to the same height as the two end height to form the opening 35.
a.

It is installed in the entire area of 36a'. A wind direction plate 43 extends obliquely downward along the suction duct 31 from the outer periphery of the opening 35b at the lower part of the suction duct 31 with a side dimension of M6.
It is equipped with

Next, the operation of the above embodiment will be explained.

First, when the refrigerating/warming switching room 2b is set to refrigerate, that is, when the storage room 2 is set to refrigerate, the heater 33 is turned off by a switch (not shown), and the shutter 37.
37' is a manually opened opening 35b.

Rotate upward to open 35b'. The upper shutter 39.39' is still inserted into the groove 42.42' (as shown by the solid line in FIG. 8), and the upper shutter 39.3
9' is installed vertically. This waste suction duct 31. The discharge duct 32 is opened. The cold air discharged from the discharge port 18 flows upward along the side wall 6' and hits the wind direction plate 43. Since the wind direction plate 43 extends diagonally downward, a portion of the cold air is guided by the wind direction plate 43, passes through the openings 35b and 35a, and enters the refrigerating/heating switching chamber 2b. The opening 35 of the discharge duct 32 exchanges heat with the product in the refrigerating/warming switching room 2b to cool it.
a' and 35 b', and is sucked in from the suction duct 31. Also, the shutter 39°39' K r
COL D D RI N K J (D Product name (7)
The display makes it easy for the product seller to understand that the refrigerated/warm storage switching chamber 2b is set to the refrigerated state (FIG. 9).

Next, when the refrigerated/warm storage switching chamber 2b is set to warm storage,
The heater 33 is turned on by a switch (not shown), and the shutters 37 and 37' are manually closed to the openings 36a and 36a.
' Rotate downward to close. The dimensional upper part 39.39' is pulled out from the groove 42.42' and cut and raised 41, 41. ' to close the openings 35a, 36a'. In this way, the suction duct 31. Discharge duct 32
is insulated by double shutters. For this reason, the lower surface of the shutter 37.3'7' becomes extremely difficult to be affected by the heat of the heater 33, and the cold air discharged into the refrigerating compartment 2a is not heated by a portion of the shutter, reducing the operating rate of the cooling cycle. On the contrary, the influence of heat on the refrigerating/harboring switching chamber 2b is reduced, and the input consumption of the heater 33 can be reduced.

In addition, the suction duct 31. The influence of heat on the products around the discharge duct 32 is reduced, and the temperature distribution of the products can also be reduced.

In addition, the suction duct 31. The provision of an upper shutter 39,39' at the top of the discharge duct 32 has the advantage that small articles cannot fall into each duct 31,32.

Effects of the Invention As is clear from the above embodiments, the present invention provides an opening/closing type shutter on the upper and lower surfaces of the openings on both sides of the partition wall.

By providing a wind direction plate that extends obliquely outward and downward from the lower outer periphery of the suction duct opening in the partition wall, it is possible to save power when the storage room is operated in combination with refrigerating and heating. It has the advantage that the temperature distribution of products in the greenhouse can be reduced, and when the storage room is in refrigerated/warm storage mode, the temperature of the products placed in the refrigerated/warm storage switching room can be maintained at a lower temperature. ing.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a conventional refrigerated/heated storage case;
The figure is a sectional view of the center of FIG. 1, FIG. 3 is a sectional view of the partition wall of FIG. 1, FIG. 4 is an enlarged sectional view of the main part of FIG. Perspective view of refrigerated/heated storage showcase,
Figure 6 is a central cross-sectional view of Figure 6, Figure 7 is a cross-sectional view of the partition wall in Figure 6, Figure 8 is an enlarged cross-sectional view of the main part of Figure 5, and Figure 9 is a cross-sectional view of the partition wall in Figure 6. FIG. 6 is a perspective view of FIG. 6; 2 Storage room, 3... ・Cooling room, 6- Opening, 6°6
' Left and right sides, 16 evaporator, 17... fan motor, 18-... discharge port, 19... suction port, 26- partition wall, 3-3-- heater, 35a, 35b. 36 a', 36 b'-=opening, 37, 37
・”'Nyanotar, 39.39' - Upper shutter, 43 wind direction board. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure Inc Figure 2 Figure 3 3 51st K Oc

Claims (1)

[Claims] a storage chamber equipped with a door covering an opening formed in the front surface; a cooling chamber equipped with an evaporator and a fan motor for forcedly circulating cold air into the storage chamber; and a discharge port communicating the cooling chamber and the storage chamber. and a suction port, a partition wall made of a heat insulating material is horizontally installed in the storage room, an opening is provided in the partition wall on an extension line of the discharge port and the suction port, and openings and closings are provided on the upper and lower surfaces of the opening. A refrigerating/heating switch comprising: a shutter of the same type, a wind direction plate extending outward and downward from the lower outer periphery of the opening on the discharge port side, and a heater disposed in the center of the partition wall. ceremony showcase.