KR200184323Y1 - Attachment apparatus for heat exchanger of refrigerator - Google Patents

Abstract

In the refrigerator evaporator mounting apparatus according to the present invention, the evaporator is mounted so as to perform heat exchange with cold cold in surface contact with the warmth raised to the inner mounting space of the cabinet, in the refrigerator equipped with a defrost heater in the lower part of the evaporator And, between the both the outer side of the evaporator and the inner side of the cabinet is characterized in that the warmth blocking member is installed so as to block some of the warmth rising through the lower portion of the evaporator between them, it is possible to increase the heat exchange rate, In addition, the interference between the positive and negative heater cables may be avoided when the evaporator is mounted, and the positive and negative heater cables may be prevented from being chewed or peeled off when the evaporator is mounted, thereby causing a short circuit.

Description

Mounting device of evaporator for refrigerator

The present invention relates to a device for attaching an evaporator for a refrigerator, and more particularly, when some of the warmth is exchanged with cold air while the warmth of the refrigerator rises through the lower part of the evaporator, the space between the both sides of the evaporator and both side walls of the refrigerator. It relates to a mounting apparatus of the evaporator for a refrigerator to prevent the rising through the passage in advance.

Conventional refrigerators, as shown in Figure 1, the object required for freezing and refrigeration (for example, stored food and storage at the upper and lower portions through the intermediate member 20 on the mounting intermediate side of the cabinet 10, as shown in FIG. Containers and the like), and the freezing and refrigerating chambers 30 and 40 are partitioned into a predetermined space so as to store and freeze and refrigerate, and the rear side of the freezing chamber 30 has an air flow inside the freezing and refrigerating chambers 30 and 40. Cool air circulation means (50) is installed to forcibly circulate air, and the cold air circulation means (50) is operated at the rear side of the freezing chamber (30) at a predetermined interval from the rear wall of the cabinet (10). And a damper cover having cold air discharge and suction holes 61 and 62 formed to guide the flow of cold air blown by the air and at the same time to form a cold air environment path in which the cold air is discharged to the upper side of the freezing chamber 30 and sucked downward. 60) is installed.

At this time, the cold air circulation means 50 is a blown motor 51 is driven by receiving power, the blowing fan 52 is rotated in accordance with the drive of the blower motor 51, and the blower motor 51 The bracket 53 is fixed to the cabinet 10.

The lower part of the cold air circulation means 50 with respect to the damper cover 60 and the cabinet 10 in the freezing and refrigerating chambers 30 and 40 circulated by the blowing force of the cold air circulation means 50. An evaporator 70 is installed to exchange the cold air with the cold cold again, and the power supply is provided at the lower part of the evaporator 70 to remove the frost formed on the surface of the evaporator 70 when the evaporator 70 is operated for a long time. The defrost heater 80 is installed to be turned on and off at regular intervals upon receiving a predetermined time. The defrost heater 80 is provided at the lower portion of the defrost heater 80 when the energization of the defrost heater 80 is turned on. The drain hose 90 is installed inside the rear wall of the cabinet 10 so as to drain the defrost water generated during the defrosting process.

Here, the evaporator 70, as shown in FIG. 2, both side support plates 71 arranged left and right at a predetermined interval with both inner side walls of the mounting space P formed at the inner rear end of the cabinet 10, Two end portions of the plurality of refrigerant pipes 72 provided at regular intervals in the vertical direction between the two support plates 71 and the plurality of refrigerant pipes 72 protruding to the outer sides of the both support plates 71. A plurality of return band tubes 73 connected one by one and a refrigerant temperature flowing inside the refrigerant tube 72 outside the plurality of refrigerant tubes 72 conduct heat to generate heat of the refrigerant, and at the same time, the evaporator 70. It is composed of a plurality of heat transfer fins 74 which are installed at a predetermined interval to the left and right so as to be in surface contact with the air rising through the lower part of the).

At this time, an accumulator (75) is installed at one end of the upper refrigerant pipe (72) among the plurality of refrigerant pipes (72), and one side of the outer peripheral surface of the accumulator (75) of the defrost heater (80). Bimetal thermo (77) is provided to be bundled by the cable band (76) to cut off the power primarily due to overvoltage or failure during defrosting, defrost heater (80) at the lower end of the bimetal thermo (77) The thermo-fuse 79, which is electronically connected via the temperature cable 78, is installed so as to shut off the power secondaryly due to an overvoltage or a failure during defrosting.

On the other hand, the both ends of the defrost heater 80 is connected to the positive and negative heater cables 81, 82 so that the AC voltage applied from the power supply means (not shown) is connected, these positive and negative heater cables 81 82 is drawn upward through a predetermined gap formed between both side support plates 71 of the evaporator 70 and the inner wall of the cabinet 10.

At this time, the positive and negative heater cables 81 and 82 are bundled together with the bimetal thermo 77 by the cabinet band 76 wound around the accumulator 75 according to the mounting method so as not to be loosely fixed.

The lower end of the cabinet 10 collects the defrost water drained along the drain hose 90 and the collected defrost water is evaporated by the compression heat of a compressor which will be described later. An evaporation plate 110 is installed at an upper portion of the machine room 100 formed at the rear side, and a compressor 120 is installed at the lower portion of the evaporation plate 110 to compress the circulating refrigerant at a high temperature and high pressure. 10, a condenser 130 is installed on the outer rear wall to receive the gas refrigerant compressed to high temperature and high pressure by the compression action of the compressor 120 and condense it by natural convection.

On the rear side of the intermediate member 20, a first cold passage 150 of a predetermined interval is formed by a cold air flow guide plate 140 so that cold air heat exchanged while passing through the evaporator 70 is discharged to the refrigerating chamber 40. On the other side of the intermediate member 20, a second cold passage 160 of a predetermined interval is formed so that the cold air in the refrigerating chamber 40 passes through the evaporator 70, and the first cold passage 150 The temperature controller 170 is installed at the upper rear side of the refrigerating chamber 40 to adjust the supply amount of the cold air discharged to the refrigerating chamber 40 through multiple stages (for example, strong cooling or weak cooling).

The front and rear openings of the freezing and refrigerating chambers 30 and 40 are provided with freezing and refrigerating chamber doors 180 and 181 coupled at one end by hinge means (not shown) to open and close in an opening and closing manner. A plurality of shelving means 190 are installed at a predetermined height within 40 so as to be detachable at a predetermined interval from each other so as to load the object.

However, according to the conventional apparatus for attaching an evaporator for a refrigerator configured as described above, as shown in FIG. 2, the warmth of the freezer compartment 30 and the refrigerating compartment 40 is driven by the blowing fan 52. When the warmth is raised through the lower part of), the warmer passes through the evaporator 70 and has a structure in which heat is exchanged coldly by the heat of the refrigerant generated in the evaporator 70. However, this structure is raised by the blowing force of the blower fan 52. The problem that the heat exchange rate is lowered by being partially raised through a predetermined interval formed between the both sides of the support plate 71 and the both sides of the cabinet 10 without passing the whole amount between the both sides of the support plate 71 of the evaporator 70. there was.

In addition, the anode and cathode heater cables 81 and 82 of the defrost heater 80 passing between the both side support plates 71 of the evaporator 70 and the both inner side walls of the cabinet 10 are not supported and are drawn out to the upper portion. When the evaporator 70 is mounted in the mounting space P, the evaporator 70 is interfered by the positive and negative heater cables 81 and 82, thereby degrading workability and further reducing the positive and negative heater cables. There was also a problem that the coating is peeled off as the (81) (82) is chewed during the installation of the evaporator 70 or rubbed against the support plates 71 on both sides of the evaporator 70, causing a short circuit.

Therefore, the present invention has been made to solve the above problems, an object of the present invention is to block the rising of the warm air between the both the outer wall of the evaporator and the inside and the inside of the cabinet mounting of the refrigerator evaporator to increase the heat exchange rate To provide a device.

Another object of the present invention is to prevent the evaporator from being interfered by the flow of the anode and cathode heater cables of the defrost heater when the evaporator is mounted, and also to prevent the anode and cathode heater cables from being chewed or peeled off when the evaporator is mounted. It is to provide an installation apparatus of the evaporator for a refrigerator to prevent the short circuit phenomenon in advance.

The refrigerator evaporator mounting apparatus according to the present invention made to achieve the above object, the evaporator is mounted so as to exchange heat with cold cold in surface contact with the warmth raised to the inner mounting space of the cabinet, the defrost in the lower portion of the evaporator A refrigerator equipped with a heater, characterized in that a warmth blocking member is provided between both the outer side of the evaporator and the inner side of the cabinet so as to block some of the warmth which rises through the lower part of the evaporator between them.

1 is a longitudinal cross-sectional view showing a conventional refrigerator.

2 is an internal view showing a conventional installation state of the evaporator.

Figure 3 is an internal view showing the installation state of the evaporator is mounted a warmth blocking member according to a first embodiment of the present invention.

4 is an internal view showing an installation state of an evaporator in which a warmth blocking member according to a second embodiment of the present invention is mounted.

5 is an internal view showing an installation state of an evaporator mounted with a warmth blocking member according to a third embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10: cabinet 70: evaporator

71: both sides support plate 80: defrost heater

81,82: Positive and negative heater cable 300,310: Warmth blocking member

301: horizontal plate 302: vertical plate

303: guide hole 311: cover plate

[First Embodiment]

Hereinafter, a first embodiment of the present invention will be described in detail with reference to the accompanying drawings.

For reference, the same components and the same reference numerals are assigned to the same components as the conventional components in the drawings, and detailed description thereof will be omitted.

In the drawing, reference numeral 300 denotes a part of the warmth which rises through the lower part of the evaporator 70 and blocks the flow between the outer wall of the evaporator 70 and the inner side of the cabinet 10 and at the same time the positive and negative heater cable (81) (82) shows the warmth blocking members respectively fixed to one side of the outer wall of the support plate (71) so as not to be severely flow.

That is, as shown in FIG. 3, the warmth blocking member 300 may block one side of the outer wall of the support plate 71 so as to block between the both outer wall of the evaporator 70 and both inner walls of the cabinet 10. A horizontal plate 301 integrally protruded horizontally from the vertical plate 302 and a vertical plate 302 integrally bent vertically downward from an end of the horizontal tube 301 so as to be in close contact with both inner side walls of the cabinet 10, Guide hole 303 penetrated through one side of the horizontal plate 301 to prevent interference by preventing the flow of the positive and negative heater cable (81, 82) of the defrost heater 80 when mounting the evaporator (70) It consists of).

In addition, when the warmth blocking member 300 is installed in the evaporator 70, the warmth blocking member 300 is generally installed near the lower side of the outer wall of the both side support plates 71 so as to initially block the rise of warmth.

The material of the warmth blocking member 300 is made of aluminum having a high heat transfer rate to easily remove the frost formed on the surface thereof.

Next, the operation and effect according to the first embodiment of the present invention configured as described above will be described.

When the compressor 120 installed in the lower part of the cabinet 10 is operated by turning on the main switch (not shown) in order to reach the predetermined temperature, the freezing and refrigerating chambers 30 and 40 are compressed. The high-temperature, high-pressure gas refrigerant compressed by the action flows along the inside of the condenser 130, thereby condensing.

Then, the gas refrigerant condensed while passing through the condenser 130 is phase-reduced into a high temperature and high pressure liquid refrigerant at a temperature slightly higher than the room temperature, which is the ambient temperature of the refrigerator, and decompressed by passing through a capillary tube (not shown). The vapor is introduced into the evaporator 70 and expanded to vaporize at a low temperature and low pressure, and at the same time, evaporate to cool.

On the other hand, when the blower fan 52 is rotated by receiving the power of the blower motor 51 as the blower motor 51 of the cold air circulation means 50 is operated, the freezing and cooling by the blower of the blower fan 52 The warm air in the refrigerating chambers 30 and 40 merges with the cold air suction hole 62 formed in the damper cover 60 to the lower portion of the evaporator 70 through the second cold air passage 160 formed at the rear side of the intermediate member 20. At the same time as being raised to pass through the evaporator 70 is exchanged with cold cold by the cooling action of the evaporator 70 described above.

At this time, some of the warmth flowing between the outer wall of the evaporator 70 and the inner and outer sides of the cabinet 10 of the warmth rising through the lower portion of the evaporator 70, the evaporator ( It is blocked by the warmth blocking member 300 fixed to both side support plates 71 of the 70 and at the same time the flow is switched to the center of the evaporator 70 is raised.

In this way, the heat exchange rate can be increased by blocking the warmth that rises between the outer and outer walls of the evaporator 70 and the inner and inner walls of the cabinet 10 by the warmth blocking member 300.

In addition, the guide hole 303 formed in the horizontal plate 301 of the warmth blocking member 300 flows in the positive and negative heater cables 81 and 82 of the defrost heater 80 when the evaporator 70 is mounted. At the same time, the positive and negative heater cables 81 and 82 are prevented from being interfered with, thereby preventing chewing or peeling of the evaporator 70 when the evaporator 70 is attached.

The cold air heat-exchanged through the evaporator 70 is discharged into the freezing chamber 30 through the cold air discharge hole 61 formed at the upper end of the damper cover 60 as the blower fan 52 rotates, thereby freezing the chamber 30. The object stored therein is frozen at a low temperature, and some cold air is introduced into the temperature controller 170 through the first cold air passage 150 formed at the rear side of the intermediate member 20 under the guidance of the cold air flow guide plate 140. At the same time, by controlling the cold air of the temperature control driving part (not shown), the cold air is supplied into the refrigerating chamber 40 while the cold air supply amount is controlled by strong cooling or weak cooling, thereby refrigerating the object stored in the refrigerating chamber 40 to a low temperature.

On the other hand, when the defrost heater 80 is operated at regular intervals to remove the frost formed in the evaporator 70 when the evaporator 70 is operated for a long time, the defrost heater 80 is heated by receiving power to the evaporator 70. The defrost water which melts the frost formed on the surface of the) and the frost is liquefied and flows down to the defrost water receiver (not shown) installed at the bottom of the evaporator 70 and at the same time, the drain hose connected to the defrost water receiver and the passage ( It is collected along the 90 to the evaporation plate 110 installed on the rear lower side of the cabinet 10.

At this time, the defrost water collected in the evaporation plate 110 is evaporated by the heat of compression by the operation of the compressor 120 installed in the lower portion of the evaporation plate 110.

Second Embodiment

In the above description, some of the warmth that rises through the lower part of the evaporator 70 is blocked on both support plates 71 of the evaporator 70 to block the flow between the outer wall of the evaporator 70 and the inner and outer sides of the cabinet 10. An example of a structure in which the warmth blocking member 300 is installed is described, but the present invention is not limited thereto. For example, as shown in FIG. 4 as a second embodiment, both side support plates of the evaporator 70 are provided. Even if the warmth blocking member 310 made of foam polyethylene is installed so that the material is supported by the surface contact force by its elastic force when it is fitted between the inner wall of the 71 and the cabinet 10, It is of course included in the concept.

Third Embodiment

In addition, the present invention, as shown in FIG. 5 as a third embodiment, the warmth blocking member 310 of the foam polyethylene material between the support plate 71 of the evaporator 70 and the inner wall of both sides of the cabinet 10 ) Is fixed by a surface contact force, and a cover plate 311 made of an aluminum material is deposited on the upper surface of the warmth blocking member 31 to immediately remove the frost generated by the temperature difference between the warm and cold air.

As described above, according to the mounting apparatus of the evaporator for refrigerators according to the first to third embodiments of the present invention, the lower end of the outer side wall of the evaporator so as to block the warm air from rising between the outer side wall of the evaporator and the inner side wall of the cabinet Since the warmth blocking member is installed in the structure, it is possible to increase the heat exchange rate.

In addition, since the positive and negative heater cables of the defrost heater are fixed so as not to flow by the guide holes of the warmth blocking member provided on the outer wall of the evaporator, the interference of the positive and negative heater cables can be avoided when installing the evaporator. In addition, there is an effect that can prevent the anode and cathode heater cables from being chewed or peeled off when the evaporator is installed, causing short circuiting.

Claims (8)

In a refrigerator in which a heat exchanger is mounted on the surface of the cabinet and heat exchanged with cold cold in surface contact with a warm air, and a defrost heater is mounted on the lower portion of the evaporator, both sides of the evaporator and both inside and outside of the cabinet are provided. An apparatus for attaching a refrigerator for an evaporator, characterized in that a warmth blocking member is installed to block some of the warmth that rises through the lower part of the evaporator therebetween. According to claim 1, wherein the warmth blocking member, a horizontal plate integrally protruded horizontally from one side of the outer wall of the both side support plate of the evaporator so as to block between the outer wall of both sides of the evaporator and the inner side wall of the cabinet, both inside the cabinet And a vertical plate that is integrally bent in a vertical direction from the end of the horizontal tube so as to be in close contact with the side wall. The evaporator of claim 1, wherein a guide hole is formed in the warmth blocking member so as to hold the evaporator so that the evaporator is not interrupted by the flow of the positive and negative heater cables of the defrost heater. Mounting device. The method of claim 1, wherein the warmth blocking member is installed in the evaporator of the refrigerator, characterized in that installed near to the lower side in general to the outer wall of the evaporator to block the rise of warmth when the evaporator is installed. The method of claim 2, wherein the warmth blocking member is a material of the evaporator for a refrigerator, characterized in that the heat transfer rate is made of aluminum so as to easily remove the frost formed on the surface thereof. The apparatus of claim 1, wherein the warmth blocking member is formed of an elastic body to be fixed by surface contact force when the warmth blocking member is sandwiched between both the outer and outer walls of the evaporator and the inner and inner walls of the cabinet. The method of claim 6, wherein the warmth blocking member is a material of the refrigerator evaporator, characterized in that the material made of foam polyethylene. 7. The refrigerator mounting apparatus of claim 6, wherein a cover plate made of aluminum is deposited on the upper surface of the warmth blocking member so that defrost does not occur.