KR19990006735U - Door glass dew condensation prevention device of showcase - Google Patents

Abstract

The present invention relates to a device for preventing dew glass dewage in a showcase, and more specifically, to remove dew condensation on the surface of the door glass, to improve display properties of products located in the interior, and to satisfy export regulations. Dew condensation prevention device.

The dewdrop preventing device of the showcase of the present invention communicates with the machine room 2 of the showcase 1, and protrudes on one side of the front frame so that air in the machine room 2 is located on the side where the hinge of the door 4 is located. An exhaust duct 10 having a discharge outlet 15 formed therein is coupled to a front surface of the door frame 5 to form a predetermined pipeline, and the outlet 15 of the exhaust duct 10 is opened by opening and closing the door 4. A door duct having a connection part 25 selectively connected to introduce high temperature air, and having a plurality of air nozzles 21 formed therein so that the air flowing through the connection part 25 circulates and is injected to the door glass 6 side. It consists of 20.

Description

Door glass dew condensation prevention device of showcase

The present invention relates to a device for preventing dew glass dewage in a showcase, and more specifically, to remove dew condensation on the surface of the door glass, to improve display properties of products located in the interior, and to satisfy export regulations. Dew condensation prevention device.

In general, a showcase is a device used to display and sell food or beverages that require refrigeration or freezing in a refrigerated or frozen state. A showcase is a product that is stored at a low temperature to block cold air from leaking to the outside. It should be maintained and preserved, and the products displayed in the store should be displayed neatly and clearly to consumers.

The showcase is based on the principle of freezing, and moves the refrigerant due to thermodynamic properties into a closed circuit (refrigeration cycle) consisting of a compressor, a condenser, an evaporator, and vaporizes it by taking heat away from the surroundings and lowering the temperature for a long time. To make it possible.

The showcase is basically a compressor for compressing the refrigerant into a gas of high temperature and high pressure, a condenser for liquefying the compressed refrigerant, an expansion valve for lowering the pressure of the high pressure refrigerant discharged from the condenser, and a refrigerant to vaporize the cold air. A cooler for generating heat, a condenser fan for dissipating heat from the condenser, and a cooling fan driven by a cooling fan motor for forced circulation of cold air generated from the cooler into the showcase. It is done by

1 is a side view schematically showing a showcase of a conventional rich-in type.

As shown, the door 120 that can be opened and closed to bring in and take out food and food and beverages is installed at the front part of the cabinet 110 forming the outer body, and the compressor 131 is located below the main body of the showcase 100. ), A condenser 132 and a cooling chamber 133 are shown.

When the showcase 100 is used in a high temperature and high humidity region such as Southeast Asia and Africa, dew is formed on the surface of the door glass 125.

That is, dew condensation forms dew on the glass surface when the temperature of the surface of the door glass 125 is lowered below the dew point temperature of the surrounding atmosphere by heat transfer from the inside of the refrigerator.

The dew condensation phenomenon has a problem that is directly connected to the product sales, such as impairing the display of the product, in order to prevent dew condensation, the door glass 125 composed of a multilayer glass 126 and the hot wire 127 is conventionally used.

2 is a side cross-sectional view showing such a door glass, wherein the multilayer glass 126 is spaced at a predetermined interval, and a hot wire 127 is positioned between the multilayer glass 126.

Here, the heating wire 127 generates a heat by receiving a predetermined current and prevents dew condensation by maintaining the temperature of the surface of the outer door glass 125 above the dew point temperature.

That is, the dew glass preventing device of the door glass 125 of the showcase 100 formed as described above generates power by supplying power to the heating wire 127 interposed between the multilayer glass 126 to generate predetermined heat. (125) The surface rises above the dew point temperature in the ambient atmosphere, thereby preventing dew condensation.

However, the conventional door glass that prevents dew formation is a cause of the increase in the product cost because it uses a laminated glass with a built-in heating wire.

In addition, since the current must be supplied to the heating wire in the multilayer glass, there is a problem in that the maintenance cost of the showcase due to the use of additional power is increased.

The present invention has been made to solve the above-mentioned problems of the prior art, and to provide a door glass dew preventing device of the showcase that can reduce the production cost and maintenance cost by injecting air to the outer surface of the door glass. There is this.

The door glass dew condensation preventing device of the showcase of the present invention for achieving the above object is in communication with the machine room of the showcase, and the discharge port for projecting the upper side of the front frame to discharge the air in the machine room on the side where the door hinge is located. The exhaust duct is formed, and is coupled to the front of the door frame to form a predetermined pipe, and is connected to the outlet of the exhaust duct selectively by opening and closing the door, the connecting portion for introducing hot air, the air flowing through the connecting portion It is characterized by consisting of a door duct formed with a plurality of air nozzles to be sprayed to the door glass side while being circulated.

1 is a side view showing a showcase of the conventional rich-in type,

Figure 2 is a side cross-sectional view showing a door glass of a conventional showcase,

3 is an exploded perspective view showing a showcase to which an embodiment of the present invention is applied;

4 is a plan sectional view according to an embodiment of the present invention,

5 is a front view showing a part of a showcase to which another embodiment of the present invention is applied.

Explanation of symbols for the main parts of the drawings

1: showcase 2: machine room

3: front frame 4: door

5: door frame 6: door glass

10: exhaust duct 15: outlet

20: door duct 21: air nozzle

25: connection portion 26: inlet

30 tube

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in more detail.

3 is an exploded perspective view showing a showcase to which an embodiment of the present invention is applied, and FIG. 4 is a plan sectional view according to an embodiment of the present invention.

As shown, the machine room 2 located below the showcase 1, the exhaust duct 10 for discharging the hot air generated in the machine room 2, and optionally the exhaust duct 10 The door duct 20 is shown in communication with the air injecting air toward the front of the door glass 6.

The machine room 2 of the showcase 1 is configured to suck air from one side and discharge hot air to the exhaust duct 10 located in the front frame 3.

That is, the machine room 2 including a condenser (not shown), a compressor (not shown), and a cooling fan (not shown) forms a suction grill to suck external air into the rear frame (not shown). A cooling fan (not shown) may be positioned to pump air introduced through the suction grill to the front frame 3 so that hot air may be discharged through the exhaust duct 10 located in the front frame 3. Can be.

The exhaust duct 10 is in communication with the machine room 2 so as to discharge hot air generated in the machine room 2, and is located at an upper side of the front frame 3.

The exhaust duct 10 protrudes from the front frame 3, and a discharge port 15 through which the air in the machine room 2 is discharged is formed at the side where the hinge of the door 4 is located.

The door duct 20 is coupled to the front surface of the door frame 5 to form a predetermined pipeline, and selectively communicates with the outlet 15 of the exhaust duct 10 by opening and closing the door 4 to obtain hot air. A plurality of air nozzles 21 are formed to have a connection portion 25 flowing therein and to be injected toward the door glass 6 while the air flowing through the connection portion 25 is circulated.

Here, the connection portion 25 extends from the lower side of the door duct 20 toward the outlet 15 of the exhaust duct 10, and the inlet 26 is formed at a position opposite to the outlet 15.

In other words, the inlet 26 is configured to selectively contact the outlet 15 to introduce air from the machine room 2 discharged from the outlet 15 into the door duct 20.

The dew point preventing device of the showcase of the present invention made as described above acts as follows.

Air generated in a compressor (not shown) and a condenser (not shown) located in the machine room 2 of the showcase 1 is air-cooled by the blowing force of a cooling fan (not shown). ) Air is exhausted through the exhaust duct 10.

And when the door 4 is closed, the door duct 20 coupled to the front of the door frame 5 is in communication with the inlet 26 of the connection portion 25 and the outlet 15 of the exhaust duct 10 In this state, hot air of the machine room 2 flows into the door duct 20.

Subsequently, the hot air introduced into the door duct 20 is discharged through the air nozzle 21 formed in the direction of the door glass 6 while circulating in the door duct 20.

Therefore, since a predetermined heat transfer is performed to the door frame 5 in close contact with the door duct 20, the air nozzle 21 of the door duct 20 as well as preventing dew condensation occurring in the door frame 5. Since the hot air is sprayed on the front surface of the door glass 6, it is possible to prevent dew condensation generated in the door glass 6.

In addition, when the door 4 is opened, the door duct 20 coupled to the door frame 5 is separated from the exhaust duct 10 located in the front frame 3 of the machine room 2 so as to separate the machine room 2. ) Air inlet is blocked.

That is, since the connection portion 25 formed with the inlet 26 of the door duct 20 is separated from the outlet 15 of the exhaust duct 10, air inflow is blocked.

Here, since the outlet 15 of the exhaust duct 10 is formed in the direction in which the hinge axis of the door 4 is located, the air of the machine room 2 is prevented from entering the inside of the showcase 1.

FIG. 5 is a front view showing a part of a showcase to which another embodiment of the present invention is applied, and shows a tube 30 interconnecting the exhaust duct 10 and the door duct 20 as shown.

The tube 30 is fitted into the coupling groove formed at one side of the exhaust duct 10 and the door duct 20, and is molded in a flexible manner so that the door duct 20 and the exhaust duct are always open regardless of opening and closing of the door 4. Since the state of the interconnections 10 is maintained, the air in the machine room 2 can always be supplied into the door duct 20.

As such, the door glass dew condensation prevention device of the showcase of the present invention uses high temperature air naturally occurring in the machine room of the showcase, thereby reducing the maintenance cost, and uniformly sprays the air on the front of the door glass. The cleaning effect can be achieved.

In addition, since the door frame receives a predetermined heat transfer from the door duct, dew condensation is prevented.

The present invention is not limited to the embodiments described, it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention.

Therefore, such modifications or modifications will have to fall within the scope of the utility model registration claim of the present invention.

Claims (3)

An exhaust duct communicating with the machine room 2 of the showcase 1 and protruding from an upper side of the front frame, and having an outlet port 15 through which the air of the machine room 2 is discharged on the side where the hinge of the door 4 is located. 10; The connection portion 25 is coupled to the front of the door frame 5 to form a predetermined pipeline, and selectively communicates with the outlet 15 of the exhaust duct 10 by opening and closing the door 4 to introduce hot air. A door duct (20) having a plurality of air nozzles (21) formed thereon, such that air flowing through the connection part (25) is circulated and sprayed toward the door glass (6); Dew preventing device of the showcase, characterized in that made. According to claim 1, The connecting portion 25 is extended to contact the outlet 15 of the exhaust duct 10 on the lower side of the door duct 20, the door duct 20 in a position opposite to the outlet 15 The inlet port 26 for introducing air into the showcase, characterized in that formed dew preventing device. The showcase of claim 1, wherein the outlet 15 of the exhaust duct 10 and the connection portion 25 of the door duct 20 are connected to the flexible tube 30 having a predetermined stretching force. Dew prevention device.