KR0111187Y1 - Electric refrigerator - Google Patents

Abstract

The present invention relates to an electric refrigerator for blocking the flow of air flowing into the evaporator side when the door is opened, in the electric refrigerator having a partition partitioning the freezer compartment and the refrigerating compartment, and an inflow passage formed to allow air to flow in the partition wall, The inflow passage 11 is provided with a flow path opening and closing means 20 for selectively controlling the flow of air in conjunction with the opening and closing operation of the lower door (3a) to selectively control the flow of air flowing into the periphery of the evaporator Minimize the heat load applied to the evaporator and at the same time prevent the formation of frost on the surface of the evaporator to improve the freezing performance, thereby reducing the power consumption significantly because the fan motor and compressor are not operated unnecessarily. .

Description

Electric refrigerator

1 is an overall coupling cross-sectional view showing the internal structure of a conventional electric refrigerator,

2 is a partial cross-sectional view showing an electric refrigerator according to the present invention,

3 is an enlarged partial cross-sectional view showing the main part of the electric refrigerator according to the present invention,

Figure 4 is a cross-sectional view showing the operating state of the present invention.

* Explanation of symbols for main parts of the drawings

3a: Lower door 24a: Guide part

11: inflow passage 26: roller

20: euro opening means 32: elastic plate

22: duct member 34: elastic member

22b: contact part 36: door panel

24: opening and closing member

The present invention relates to an electric refrigerator, and more particularly, by selectively blocking and inflowing the flow of external air flowing into the periphery of the evaporator according to opening and closing of the door, thereby minimizing heat loss and improving freezing performance. Relates to an electric refrigerator.

In the conventional electric refrigerator, as illustrated in FIG. 1, a partition wall 4 is formed on the inside of the refrigerator main body 1 to partition the freezer compartment 2 and the refrigerating compartment 3 on the upper and lower sides thereof. The upper and lower doors 2a and 3a are coupled to the front and rear surfaces of the refrigerating chamber 3 freely.

In the partition 4, an evaporator 7 is installed to heat the refrigerant compressed by the compressor 5 at a high temperature and high pressure in the condenser 6, heat exchange the heat, and then evaporate to cool the surrounding air. 4) One side of the cold air passage 10 for supplying the cool air formed in the evaporator (7) into the freezing chamber (2) and the refrigerating chamber (3) by a fan motor (9) operated under the control of the temperature controller (8). On the other side, an inflow passage 11 for supplying and cooling the hot air in the freezing chamber 2 and the refrigerating chamber 3 to the periphery of the evaporator 7 is formed.

Therefore, the gas refrigerant of the high temperature and high pressure compressed by the extruder 5 is heat-exchanged in the condenser 6, becomes a liquid refrigerant of room temperature and high pressure, and then decompresses to a pressure that is easy to evaporate while passing through a capillary tube (not shown). ), The evaporator (7) takes heat away from the ambient air and evaporates it to cool the ambient air. At this time, the formed cold air is driven by the fan motor (9) under the control of the temperature controller (8). It is properly supplied into the freezer compartment 2 and the refrigerating compartment 3 through the passage 10 to perform a cooling action, and the hot air that has been cooled in the freezer compartment 2 and the refrigerating compartment 3 again enters the inflow passage 11. After the inflow, the cooling operation is repeatedly performed.

However, in the conventional electric refrigerator, the cold air flows smoothly when the door is closed, but in addition to the cold air inside the air as well as the outside air flows into the periphery of the evaporator to increase the heat load of the evaporator. As well as to form a defrost on the surface of the evaporator to significantly reduce the freezing performance, according to the various problems such as increasing the power consumption according to the operation of the fan motor and compressor.

The present invention is devised to solve the problems of the prior art, the purpose of the present invention is to open and close the inflow passage in conjunction with the opening and closing operation of the door to open the door of the cold air as well as the outside hot air evaporator The present invention provides an electric refrigerator that minimizes the heat load applied to the evaporator and prevents the formation of love light on the surface, thereby improving freezing performance and significantly reducing power consumption. .

An electric refrigerator according to the present invention devised to solve the above object is an electric refrigerator having a partition partitioning a freezer compartment and a refrigerating compartment, and an inflow passage formed to enable air to flow in the partition wall, wherein the inflow passage includes a lower door. Flow opening and closing means for selectively controlling the flow of air by interlocking operation according to the opening and closing operation is installed.It selectively controls the flow of air flowing into the periphery of the evaporator to minimize the heat load applied to the evaporator and at the same time, By preventing the formation of the refrigeration performance is improved, and thus the fan motor and the compressor is not operated unnecessarily, characterized in that it can significantly reduce the power consumption.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to FIGS. 2 to 4.

Figure 2 is an overall coupling cross-sectional view showing an electric refrigerator according to the present invention,

3 is a partially enlarged cross-sectional view showing the main part of the electric refrigerator according to the present invention,

About the same structure as a conventional structure, detailed description is abbreviate | omitted in the same name and same code | symbol.

In the drawings, the reference numeral 20 is a flow path opening and closing means for selectively intercepting and inflowing the flow of air introduced into the periphery of the evaporator 7 through the inflow passage 11 in conjunction with the opening and closing operation of the lower door 3a. It is shown.

The flow path opening and closing means 20 is mounted in the inflow passage 11 to allow the flow of air, and one side of the duct member 22 is hinged in accordance with the opening and closing operation of the lower door 3a. The opening and closing member 24 for selectively opening and closing the inflow passage 11 and the roller 26 for rotating the opening and closing member 24 in accordance with the opening and closing operation of the lower door (3a).

In addition, the duct member 22 has an insertion protrusion 22a inserted into the insertion hole 28a formed in the inner plate 28 forming the outer appearance of the partition wall 4 to maintain the engagement state. As the opening / closing member 24 is in close contact, the contact portion 22b for blocking the inflow of air is inclined.

On the other hand, the hinge shaft 30 fixed to the inner side of the duct member 22, the opening and closing member 24, which is formed to bend the guide portion 24a to the front end is hinged rotatably, the opening and closing member 24 An elastic plate 32 is attached to one side of the surface, that is, the contact part 22b is in close contact with the rotational operation, and the opening and closing member 24 is in close contact with the contact part 22b by the elastic member 34. It is installed bullet.

The elastic plate 32 is preferably formed of a material having a buffer property, such as rubber, soft resin, etc. in order to minimize the impact when contacting the contact portion 22b.

In addition, a coupling hole 36a is formed at the tip of the door panel 36 coupled to the inner side of the lower door 3a, and a roller having a coupling protrusion 38a formed on the bottom surface of the coupling hole 36a. The support 38 is fixed and coupled, and the roller 26 which is in contact with the guide portion 24a of the opening and closing member 24 is freely coupled to the front end of the roller support 38.

In the drawing, reference numeral 40 denotes a bracket to which the other end of the elastic member 34 having one end fixed to the opening and closing member 24 is fixed.

Next, the operation and effects on the electric refrigerator according to the present invention configured as described above will be described in detail.

First, in the state in which the lower door 3a is closed, the roller 26 applies the force to the guide portion 24a to position the opening and closing member 24 to one side, so that the duct member 22 and the inflow as shown in FIG. The passage 11 is opened to introduce the air in the storehouse. Accordingly, the hot air introduced into the inflow passage 11 is heat-exchanged with the cold at the periphery of the evaporator 7 and then the freezer compartment 2 and the refrigerating compartment 3. Cycles to.

On the other hand, when developing the lower door (3a) if necessary, when the roller 26, which is in close contact with the guide portion (24a) of the opening and closing member 24 retreats according to the opening operation of the lower door (3a), the opening and closing member 24 is rotated about the hinge shaft 30 by the elastic force of the elastic member 34 to be in close contact with the contact portion 22b of the duct member 22, the inflow passage 11 as shown in FIG. ) To block the inflow and outflow of air.

At this time, as the elastic plate 32 is attached to one side of the opening and closing member 24, the impact force is absorbed when the contact portion 22b is contacted by the elastic force of the elastic member 34, thereby preventing damage and generating noise. It is minimized, the sealing is made to be in close contact with the contact portion (22b) by the elastic force of the elastic member 34 to block the inflow of hot air as well as the air in the interior.

When the lower door 3a is closed again, the forwarding roller 26 rotates the opening / closing member 24 while pushing the guide part 24a of the opening / closing member 24 to open the inflow passage 11. At this time, as the duct member 22 is opened, air in the inlet is introduced into the inflow passage 11 to repeatedly perform heat circulating after heat exchange at the periphery of the evaporator 7.

As described above, according to the electric refrigerator according to the present invention, interlocking with the opening and closing operation of the door selectively controls the flow of air flowing into the periphery of the evaporator to minimize the heat load applied to the evaporator, It is prevented from being formed to improve the refrigerating performance, and accordingly, the fan motor and the compressor are not operated unnecessarily, and thus have various advantages such as a significant reduction in power consumption.

Claims (4)

An electric refrigerator having a partition partitioning a freezer compartment and a refrigerating compartment, and an inflow passage formed in the partition wall to allow air to flow therein, wherein the inflow passage 11 is interlocked with the opening and closing operation of the lower door 3a to provide a flow of air. An electric refrigerator, characterized in that the passage opening and closing means for selectively controlling (20) is installed. According to claim 1, wherein the flow path opening and closing means 20 is fixedly installed in the inflow passage 11 and the inside of the duct member 22 having a contact portion 22b, and one side is hinged in the duct member 22 Opening and closing member 24 elastically installed by the elastic member 34, the door panel 36 formed inside the lower door (3a) is rotatably installed to the roller 26 to rotate the opening and closing member 24 Electric refrigerator, characterized in that made. The method of claim 2, wherein the opening and closing member 24 is in close contact with the contact portion 22b when the lower door (3a) is opened on one side is attached to the elastic plate 32 to block the inflow passage (11) Electric refrigerator characterized by the above. The electric refrigerator according to claim 2 or 3, wherein the opening and closing member (24) is formed at an end portion thereof with a guide portion (24a) bent to one side so as to be easily contacted with the roller (26).