JPH0682145A - Refrigerator - Google Patents

Abstract

PURPOSE:To provide a refrigerator in which a mechanical component unit of the refrigerator is arranged at an upper part of a box of the refrigerator and defrosted water is guided out of the refrigerator without using any special complex structure and can be positively and efficiently evaporated. CONSTITUTION:In a refrigerator comprising a mechanical component unit 1 including a compressor 3, a condensor 4, an evaporator 5 and refrigerator fans 6, 10 and the like and further including an independent box 2 of the refrigerator, wherein the mechanical component unit 1 of the refrigerator is connected to an upper part of the box 2 of the refrigerator, a defrosted water receiving pan 9 of evaporation out of the refrigerator having the condensor 4 is fixed at a lower position than a defrosted water receiving pan 7 within the refrigerator. There is provided a defrosted water feeding-out pipe 8 for feeding it out of the refrigerator in which the defrosted water is naturally dropped from the defrosted water receiving pan 7 within the refrigerator into the evaporating defrosted water receiving pan 9 out of the refrigerator and then the defrosted water is evaporated at the condensor 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator, and more particularly,
The present invention relates to a refrigerator suitable for defrost water treatment in a refrigerator in which a machine room portion and a refrigerator box portion are separable and connectable to each other.

[0002]

2. Description of the Related Art In recent years, as the problem of environmental pollution has become more serious, there has been a strong demand for measures to prevent the leakage of CFC gas and to treat and recycle wastes such as household electric appliances. In addition, while the capacity of refrigerators is increasing, in view of housing conditions, due to trends such as high-rise condominiums and narrowing of stairs, the split structure of products that takes into consideration transportation and transportation into the house has been receiving attention. There is.

In the case of a large-sized refrigerator, a unit having a structure in which a machine room portion and a refrigerator box portion can be separated and connected to each other is being developed. Having a structure that makes it easy to separate metal objects such as the machine room and the urethane heat insulating member of the box part will provide consumers with products suitable for resource recycling, so-called recycling as well as easy disposal, It can be said that the needs are great. Therefore, for example, Japanese Patent Laid-Open No.
The combination refrigerator as described in Japanese Patent No. 24481 has been developed.

[0004]

The refrigerator of the prior art described above has a compact machine room unit and a combination of heat insulation room units such as a freezing room, a refrigerating room, a chilled room, and a vegetable room, which are equivalent to refrigerator boxes. Various contrivances have been made regarding ease. However, when the machine room unit is arranged on the upper part of the heat insulation room unit (refrigerator box), there is a problem that defrosting water treatment is more troublesome than the conventional product having the machine room on the lower side.

In the refrigerator described in the above-mentioned JP-A-4-24481, it is disclosed that the refrigerator is provided with a porous water absorbing body adapted to the shape of the drainage channel and the defrosting water is treated by utilizing the capillary phenomenon. No sufficient consideration was given to maintenance, and there was no disclosure of active evaporation of defrosted water that does not use a water absorber.

The present invention has been made in order to solve the above-mentioned problems of the prior art, and is one in which the refrigerator mechanical unit is arranged on the upper part of the refrigerator box body without using a particularly complicated structure. It is an object of the present invention to provide a refrigerator in which water is guided to the outside of the refrigerator and can be actively and efficiently evaporated.

[0007]

In order to achieve the above-mentioned object, the constitution of the first invention relating to the refrigerator of the present invention is a refrigerator machine product containing a compressor, a condenser, an evaporator, an internal fan and the like. In a refrigerator comprising a unit and an independent refrigerator box, and the refrigerator mechanical unit is coupled to the upper part of the refrigerator box, a defrosting water receiving tray for evaporating outside the cabinet equipped with a condenser is removed inside the refrigerator. It is installed at a position lower than the frost water receiving tray, and is provided with means for allowing the defrost water at the time of defrosting to naturally flow from the inside defrosting water receiving tray to the above outside defrosting water receiving tray for evaporation, and the defrost water is condensed above It is designed to be evaporated in a container.

In order to achieve the above object, the structure of the second invention relating to the refrigerator of the present invention is a compressor, a condenser,
A refrigerator equipped with a refrigerator machine unit containing an evaporator, an internal fan, and the like, and an independent refrigerator box body, wherein the refrigerator machine unit is coupled to the upper part of the refrigerator box body, a hot gas pipe is provided. A means for attaching the defrosting water receiving tray for evaporation to a position lower than the defrosting water receiving tray in the refrigerator for naturally flowing the defrosting water during defrosting from the defrosting water receiving tray in the refrigerator to the evaporation defrosting water receiving tray is provided. The defrosted water is evaporated in the evaporation defrosting water tray.

Further, in order to achieve the above-mentioned object, the configuration of the third invention relating to the refrigerator of the present invention is independent from the refrigerator mechanical unit containing the compressor, the condenser, the evaporator, the internal fan and the like. In the refrigerator having the refrigerator box body and the refrigerator mechanical unit connected to the upper part of the refrigerator box body, the defrosting water receiving tray for outside evaporation having a condenser is placed at an arbitrary position in the unit. Provided is a pump means for moving defrosted water during defrosting from the defrosted water receiving tray inside the refrigerator to the defrosting water receiving tray for evaporation outside the refrigerator, and the defrosted water is evaporated by the condenser. Is.

Further, in order to achieve the above object, the structure of the fourth invention relating to the refrigerator of the present invention is independent from the refrigerator mechanical unit containing the compressor, the condenser, the evaporator, the internal fan and the like. In the refrigerator having the refrigerator box body and the refrigerator mechanical unit connected to the upper part of the refrigerator box body, the defrosting water receiving tray for evaporation outside the refrigerator is attached to a position lower than the defrosting water receiving tray in the refrigerator. , Means for causing the defrosted water during defrosting to naturally flow from the inside defrosted water receiving tray to the outside defrosting water receiving tray for evaporating, and raising the defrosted water as minute water droplets to apply it to the condenser The ultrasonic oscillator described above is provided.

Further, in order to achieve the above object, the structure of the fifth invention relating to the refrigerator of the present invention is independent from a refrigerator mechanical unit containing a compressor, a condenser, an evaporator, an internal fan and the like. In the refrigerator having the refrigerator box body and the refrigerator mechanical unit connected to the upper part of the refrigerator box body, the defrosting water receiving tray for evaporation outside the refrigerator is attached to a position lower than the defrosting water receiving tray in the refrigerator. A means for causing the defrosted water during defrosting to naturally flow from the inside defrosted water receiving tray to the outside defrosting water receiving tray for evaporation, and the downwind of the condenser and the compressor cooling fan by the capillary phenomenon of the defrosted water. And a porous absorbent body for pumping water to.

[0012]

The function of each of the above technical means is as follows. According to the first aspect of the invention, the frost attached to the evaporator is melted by the defrosting heater, and is guided as defrosting water from the defrosting water receiving tray inside the defrosting water to the outside of the defrosting water by the outflow pipe for defrosting the outside of the defrosting water. Collect in the defrost water saucer. After that, when the compressor is in operation, the condenser or the condenser for drainage evaporation generates heat, and the heat causes the defrost water to evaporate. As a result, the defrost water generated during defrosting of the evaporator can be guided to the outside of the refrigerator compartment without using a special structure, and can be efficiently evaporated without using an external input.

According to a second aspect of the invention, an evaporation defrosting water receiving tray with a hot gas pipe is provided in place of the outside defrosting water receiving tray for evaporation of the first aspect, and the pipe-shaped portion of the compressor discharge gas Defrosting water can be evaporated by circulating a part.

According to the third aspect of the invention, the frost attached to the evaporator is melted by the defrosting heater, and is guided as defrosting water from the defrosting water receiving tray in the refrigerator to the outside of the refrigerator by the defrosting water outlet pipe for pumping water. When the water detection sensor provided at the inlet of the pump detects water, it controls the pump to drive the pump so that the defrosted water is pumped up to the defrosted water receiving tray for evaporation from the outside and stored. Then, when the compressor is in operation, the condenser generates heat, and the heat can evaporate the defrost water.

According to the fourth aspect of the invention, the frost attached to the evaporator is melted by the defrosting heater and guided as defrosting water from the defrosting water receiving tray in the refrigerator to the outside of the refrigerator by the defrosting water outlet pipe. The defrost water becomes very small droplets by the water detection sensor provided on the bottom of the external defrost water tray detecting water and controlling the ultrasonic oscillator to operate when the compressor operates. To raise the defrost water passage. Since the water droplets that have risen are very small, they hit the condenser, so that heat can be taken from the condenser and the defrost water can be easily evaporated.

According to the fifth aspect of the invention, the frost attached to the evaporator is melted by the defrosting heater, and the defrosting water for defrosting water outside the warehouse is defrosted as defrosting water from the defrosting water receiving tray inside the warehouse by the derivation pipe outside the warehouse. The defrosting water is guided to the saucer, touches the lower portion of the porous absorbent body, and the defrosting water is pumped to the upper portion of the refrigerator mechanical unit by the capillary action of the porous absorbent body. After that, when operating the compressor,
Fans for cooling the compressor and condenser are operating,
Defrosting that occurs when the evaporator is defrosted, because hot air that has reached a temperature higher than room temperature hits the upper part of the porous absorber or touches the hot compressor to obtain heat from the compressor. Water can be efficiently evaporated without using an external input such as a heater.

[0017]

Embodiments of the present invention will be described below with reference to FIGS. 1 to 13. In each of the embodiments described below, the refrigerator machine room is basically one unit, and the refrigerator machine room is placed on the upper part of the refrigerator box and fixed, so that the refrigerator box body and the refrigerator machine room part can be easily disposed when the refrigerator is discarded. It can be easily separated and reused. Further, the refrigerator machine room and the refrigerator box body can be separately produced at the time of production, and the productivity can be improved. The following is an example of treatment of defrost water when the refrigerator machine room is a single unit. Note that FIGS.
In each of the drawings, the same or corresponding parts are denoted by the same reference numerals.

First, each embodiment of the first invention according to the present invention will be described with reference to FIGS. 1 to 5. [Embodiment 1-1] FIG. 1 is a schematic sectional view of a refrigerator according to an embodiment of the first invention. In FIG. 1, reference numeral 1 surrounded by a broken line is a refrigerator machine product unit in which a machine room of a refrigerator is unitized, 2 is a refrigerator box body, and the refrigerator machine product unit 1 is arranged and fixed on an upper portion of the refrigerator box body 2. It is a thing. 3 is a compressor, 4 is a condenser, 5 is an evaporator, 6 is
Fans for cooling the compressor 3 and the condenser 4 for cooling, 7 is an inside defrosting water tray provided at the lower part of the evaporator 5, 8 is a defrosting water outside discharge pipe, and 9 is a lower part of the condenser 4. The defrosting water receiving tray 10 for evaporation outside the storage provided in the above is an internal fan in the vicinity of the evaporator 5.

That is, as shown in FIG. 1, the compressor 3 is arranged on the upper surface of the refrigerator machine component unit 1, and the evaporator 5 is arranged horizontally at a position below it, which is the upper part of the refrigerator compartment. The defrosting water receiving tray 7 for the purpose of receiving the defrosting water at the time of defrosting so as to cover the evaporator 5 is arranged at the lower part, and the defrosting water received on the back surface thereof is discharged to the outside of the refrigerator refrigerator. A hole for doing so and the defrosting water outside extraction pipe 8 are attached. On the rear side of the refrigerator beyond that, a defrosting water receiving tray 9 for evaporating outside the refrigerator is installed at a position lower than the defrosting water receiving tray 7 in the refrigerator, which receives the lower portion of the vertically arranged condenser 4. Here, the condenser 4 is subjected to anticorrosion treatment so as not to corrode.

The operation of the defrosting water treatment in the refrigerator having such a configuration will be described. Evaporator 5 during defrosting
The frost attached to the inside is melted by the defrost heater, reaches the inside defrost water receiving tray 7 as defrost water, and is guided to the outside by the defrost water outside delivery pipe 8 and the outside defrost water receiving tray 9 for evaporation. Collect in. After that, the condenser 4 generates heat during operation of the compressor 3, and the heat causes the defrost water to evaporate. As a result, the evaporator 5
The defrosted water that appears during defrosting can be guided to the outside of the refrigerator without using a special structure, and can be efficiently evaporated without using an external input such as a heater.

Hereinafter, a concrete modification of the first invention will be described with reference to FIG.
5 to FIG. 5, all of these are
The defrosting water receiving tray 9 for evaporation outside the refrigerator provided with the condenser 4 or the condenser 11 for drainage evaporation is attached to a lower position of the evaporator defrosting water receiving tray 7 below the evaporator 5 to remove defrosting water during defrosting. Defrosting water receiving tray 7 for defrosting water from the inside of the chamber
The defrosted water is allowed to naturally flow down to the condenser 4 or the drainage evaporation condenser 11 to be evaporated.

[Embodiment 1-2] FIG. 2 is a schematic sectional view of a refrigerator according to another embodiment of the first invention. In the figure, those having the same reference numerals as those in FIG. 1 are the same as or equivalent to those in the embodiment of FIG. Hereinafter, although not specifically stated, each embodiment will be described in the same way. In the embodiment shown in FIG. 2, the condenser 4 and the defrosting water receiving tray 9 for evaporation outside the storage
Is provided at a position lower than the evaporator 5 and the defrosting water receiving tray 7 in the refrigerator, and the defrosting water outlet pipe 8 from the defrosting water receiving tray 7 in the refrigerator is led to the upper part of the condenser 4. The defrost water can be evaporated by dropping the defrost water from the upper part of the condenser 4.

[Embodiment 1-3] FIG. 3 is a schematic sectional view of a refrigerator according to still another embodiment of the first invention. In the refrigerator of the embodiment shown in FIG. 3, for example, the compressor 3 is located on the left side when viewed from the door side, and the condenser 4 and the defrosting water receiving tray 9 for evaporation outside the refrigerator are located on the right side. ,
The condenser and the defrosting water receiving tray 9 for evaporation from the outside of the refrigerator are arranged in the refrigerator machine component unit 1 so as to be distributed substantially right and left. According to this embodiment, the refrigerator mechanical unit 1 can be particularly compact.

[Embodiment 1-4] FIG. 4 is a schematic sectional view of a refrigerator according to still another embodiment of the first invention. In the embodiment of FIG. 4, the whole or a part of the condenser 4A is arranged below the defrosting water receiving tray 9 for evaporation outside the storage. According to this embodiment, the defrosting water that has flowed into the defrosting water receiving tray 9 for evaporation outside the warehouse is heated from the lower portion by the condenser 4A to promote evaporation.

[Embodiment 1-5] FIG. 5 is a schematic sectional view of a refrigerator according to still another embodiment of the first invention. In the embodiment of FIG. 5, the condenser 4 which mainly performs the refrigerant condensation is arranged in parallel with the compressor 3 and the internal fan 6, and the condenser 11 for drainage evaporation is separately provided outside the external condenser. It is arranged in the defrosting water receiving tray 9 for use. According to this embodiment, the defrosting water that has flowed into the defrosting water receiving tray 9 for evaporation outside the warehouse is heated by the drainage evaporation condenser 11 to promote evaporation.

[Second Embodiment] Next, a second embodiment of the present invention will be described with reference to FIGS. 6 and 7. FIG. 6 is a schematic sectional view of a refrigerator according to an embodiment of the second invention, and FIG. 7 is a perspective view of an evaporation defrosting water tray with a hot gas pipe. In the embodiment shown in FIG. 6, an evaporation defrosting water tray 12 with a hot gas pipe is provided instead of the outside evaporation defrosting water tray 9 in FIG. This defrosting water tray 12 for evaporation with a hot gas pipe is shown in FIG.
As shown in FIG. 3, the defrosting water pan having the pipe-shaped passage 12a on the surface is formed by a material having high thermal conductivity by a roll bonding method or the like, and the inner surface thereof is subjected to anticorrosion treatment so as not to corrode. .

At the time of defrosting, the frost attached to the evaporator 5 is melted by the defrosting heater, reaches the defrosting water receiving tray 7 in the refrigerator as defrosting water, and guides it to the outside by the defrosting water outlet pipe 8. Then, the defrosting water for evaporation with a hot gas pipe 12 collects. Therefore, by passing a part of the compressor discharge gas through the pipe-shaped passage 12a, the defrost water can be evaporated.

[Embodiment 3-1] Next, an embodiment of the third invention according to the present invention will be described with reference to FIGS. 8 and 9. FIG. 8 is a schematic sectional view of a refrigerator according to an embodiment of the third invention. In the embodiment shown in FIG. 8, the compressor 3, the condenser 4, and the internal fan 6 for cooling them are arranged above the refrigerator mechanical unit 1, and the defrosting water is adjacent to the condenser 4. Condenser for drainage evaporation 11
A is provided, and the defrosting water receiving tray 9A for evaporation outside the storage is installed on the upper part thereof. In addition, the evaporator 5A is vertically arranged on the back of the refrigerator, and the defrosting water receiving tray 7A for receiving defrosting water at the time of defrosting is arranged below the evaporator 5A, and the defrosting water outflow pipe is provided. Attach 8. A pumping pump 14 and a pumping pipe 15 leading to the defrosting water receiving tray 9A for evaporation outside the refrigerator are provided on the back of the refrigerator.

With such a structure, during defrosting, the frost attached to the evaporator 5 is melted by the defrosting heater and reaches the in-house defrosting water receiving tray 7A as defrosting water. When the water detection sensor 16 provided at the inlet of the pumping pump 14 detects water by being guided to the outside of the refrigerator by the outer lead-out pipe 8, the pumping pump 14 is controlled to be driven to evaporate the defrosted water outside the refrigerator. Pump up water to the defrosting water tray 9A and store. Then, when the compressor 3 is in operation, the wastewater evaporation condenser 11A generates heat, and the heat causes the defrosted water in the outside defrosting water receiving tray 9A to evaporate.

By adopting these structures, the evaporator 5
Defrosting water generated during defrosting can be efficiently evaporated without using an external input such as a heater.
By using the structure, the evaporator 5, the defrosting water receiving tray 7A in the refrigerator and the defrosting water receiving tray 9A for evaporation outside the refrigerator can be freely arranged in the refrigerator mechanical component unit 1. The degree of freedom in designing the part 1 can be increased.

[Embodiment 3-2] FIG. 9 is a schematic sectional view of a refrigerator according to another embodiment of the third aspect of the present invention.
In the figure, those having the same reference numerals as those in FIG. 8 are the same parts as those in the embodiment of FIG. The embodiment shown in FIG. 9 is different from the embodiment shown in FIG. 8 in that the evaporator 5 is horizontally arranged in the upper part of the refrigerator, and the defrosting water receiving tray 7 is arranged in the lower part thereof. is there. According to this embodiment, it is possible to obtain the same effects as those of the embodiment shown in FIG. In each of the embodiments of FIGS. 8 and 9, the example in which the defrosting water receiving tray 9A for evaporation outside the storage is provided in the upper part of the drainage evaporation condenser 11A has been described, but the defrosting water is removed by the heat of the condenser 4. It goes without saying that it may be evaporated.

[Fourth Embodiment] Next, a fourth embodiment of the present invention will be described with reference to FIG. Figure 10
It is a schematic sectional drawing of the refrigerator which concerns on one Example of 4th invention of this invention. In the embodiment shown in FIG. 10, the defrosting water in each of the embodiments shown in FIGS. 8 and 9 is pumped to the upper part of the refrigerator mechanical component unit 1 by the pump pump 14, and the ultrasonic pump is used instead of the pump pump 14. The water is pumped by the child 17.
The compressor 3, the condenser 4, and the internal fan 6 for cooling them are arranged in the upper part of the refrigerator mechanical unit 1, and the whole or part of the condenser 4 is arranged in the upper part of the defrosting water passage 18 from the lower part. It is installed so as to block.

On the other hand, the evaporator 5 is disposed horizontally in the upper part of the refrigerator, and the defrosting water receiving tray for the purpose of receiving the defrosting water at the time of defrosting so as to cover the evaporator under the refrigerator. 7
And a hole for discharging the defrosted water received on the back of the defrosting water receiving tray 7 inside the refrigerator to the outside of the refrigerator and a defrosting water outside drawing pipe 8 are attached. On the back of the refrigerator beyond that, the defrosting water receiving tray 9 for evaporation outside the refrigerator is placed at a position lower than the defrosting water receiving tray 7 in the refrigerator
Is provided, and the ultrasonic oscillator 17 and the water detection sensor 16 are arranged at the bottom thereof. In addition, a defrosting water passage 18 is provided in the upper portion of the defrosting water receiving tray 9 for evaporation outside the refrigerator, and is connected to the upper portion of the refrigerator mechanical component unit 1.

With such a structure, during defrosting, the frost attached to the evaporator 5 is melted by the defrosting heater, and the defrosting water is led out of the defrosting water receiving tray 7 to the outside of the defrosting water storage as defrosting water. It is guided to the outside of the refrigerator by the pipe 8 and accumulated in the defrosting water receiving tray 9 for evaporation outside the refrigerator. The defrosting water is controlled by the water detection sensor 16 provided at the bottom of the defrosting water receiving tray 9 for evaporation outside the storage, which controls the ultrasonic oscillator 17 to operate when the compressor 3 operates. Becomes very small water droplets and rises in the defrost water passage 18. Since the water droplets that have risen are very minute, they hit the condenser 4 to remove heat from the condenser 4 and can be easily evaporated.

[Embodiment 5-1] Next, an embodiment of the fifth invention according to the present invention will be described with reference to FIGS. 11 to 13. FIG. 11 is a schematic sectional view of a refrigerator according to an embodiment of the fifth invention of the present invention. In the embodiment shown in FIG. 11, defrosting water is pumped to the upper part of the refrigerator mechanical unit 1 by the porous absorber 13. The compressor 3, the condenser 4, and the internal fan 6 for cooling them are arranged in the upper part of the refrigerator mechanical unit unit 1, the evaporator 5 is arranged horizontally in the upper part of the refrigerator, and the evaporator 5 is evaporated in the lower part. The defrosting water receiving tray 7 for the purpose of receiving the defrosting water at the time of defrosting so as to cover the vessel 5 is arranged, and the defrosting water received on the back surface thereof is discharged to the outside of the refrigerator. The hole and the defrosting water outside extraction pipe 8 are attached. On the rear side of the refrigerator, the defrosting water receiving tray 9 for evaporation outside the refrigerator is arranged at a position lower than the defrosting water receiving tray 7 in the refrigerator, and the lower part of the porous absorber 13 is put therein.
The upper part is electrically connected to the upper part of the refrigerator mechanical unit 1.

With such a structure, during defrosting, the frost attached to the evaporator 5 is melted by the defrosting heater and reaches the in-house defrosting water tray 7 as defrosting water. It is guided to the defrosting water receiving tray 9 for evaporating outside the warehouse by the outside outlet pipe 8. Here, the defrost water touches the lower part of the porous absorbent body 13 and is pumped up to the upper part of the refrigerator mechanical unit 1 due to the capillary phenomenon of the porous absorbent body 13. After that, the compressor 3
During operation, the internal fan 6 for cooling the compressor 3 and the condenser 4 is operated, and the hot air having a temperature higher than room temperature hits the upper portion of the porous absorber 13 to cause the evaporator 5 to cool. The defrost water generated during defrost can be efficiently evaporated without using an external input such as a heater.

[Embodiment 5-2] FIG. 12 is a schematic sectional view of a refrigerator according to another embodiment of the fifth aspect of the present invention, FIG.
3 is a top view of the refrigerator mechanical unit unit of FIG. 12. In the figure, those having the same reference numerals as those in FIG. 11 are the same parts as those in the embodiment of FIG. 12 and 13
11 is different from the embodiment shown in FIG. 11 in that the upper part of the porous absorbent body 13A is configured to come into contact with the compressor 3.

According to this embodiment, the defrosting water guided to the outside defrosting water receiving tray 9 for evaporation is pumped to the upper part of the refrigerator mechanical unit 1 by the capillary action of the porous absorber 13A. After that, when the compressor 3 is operated, the warm air of the internal fan 6 hits the upper part of the porous absorber 13A, and the porous absorber 13A comes into contact with the compressor 3 having a high temperature and the By obtaining heat, the defrost water can be efficiently evaporated without using an external input such as a heater.

[0039]

As described above in detail, according to the present invention, the refrigerator mechanical unit is arranged on the upper part of the refrigerator box without using a complicated structure.
It is possible to provide a refrigerator in which defrosted water can be guided to the outside of the refrigerator and positively and efficiently evaporated.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a refrigerator according to an embodiment of the first invention.

FIG. 2 is a schematic cross-sectional view of a refrigerator according to another embodiment of the first invention.

FIG. 3 is a schematic cross-sectional view of a refrigerator according to still another embodiment of the first invention.

FIG. 4 is a schematic sectional view of a refrigerator according to still another embodiment of the first invention.

FIG. 5 is a schematic sectional view of a refrigerator according to still another embodiment of the first invention.

FIG. 6 is a schematic cross-sectional view of a refrigerator according to an embodiment of the second invention.

FIG. 7 is a perspective view of a defrosting water receiving tray for evaporation with a hot gas pipe.

FIG. 8 is a schematic sectional view of a refrigerator according to an embodiment of the third invention.

FIG. 9 is a schematic sectional view of a refrigerator according to another embodiment of the third invention.

FIG. 10 is a schematic sectional view of a refrigerator according to an embodiment of the fourth invention.

FIG. 11 is a schematic cross-sectional view of a refrigerator according to an embodiment of the fifth invention.

FIG. 12 is a schematic sectional view of a refrigerator according to another embodiment of the fifth invention.

13 is a top view of the refrigerator mechanical unit of FIG.

[Explanation of symbols]

 1 Refrigerator machine unit 2 Refrigerator box 3 Compressor 4,4A Condenser 5,5A Evaporator 6,10 Inside fan 7,7A Inside defrost water receiving tray 8 Defrost water outside outlet pipe 9,9A Outside evaporation Defrosting water tray 11, 11A Condenser for drainage evaporation 12 Defrosting water tray for evaporation with hot gas pipe 13, 13A Porous absorber 14 Pumping pump 15 Pumping pipe 16 Water detection sensor 17 Ultrasonic oscillator 18 Defrosting water conduction aisle

Front page continuation (72) Inventor Masayuki Shibayama 800 Tomita, Ohira-cho, Shimotsuga-gun, Tochigi Prefecture Tochigi Plant, Hitachi Ltd.

Claims (10)

[Claims] 1. A refrigerator machine product unit accommodating a compressor, a condenser, an evaporator, an internal fan and the like, and an independent refrigerator box body, and the refrigerator machine product unit is coupled to an upper part of the refrigerator box body. In the refrigerator configured as described above, the defrosting water receiving tray for evaporation outside the refrigerator equipped with a condenser is installed at a position lower than the defrosting water receiving tray in the refrigerator, and the defrosting water at the time of defrosting is removed from the inside defrosting water receiving tray as described above. A refrigerator comprising means for allowing natural defrosting water to evaporate outside the storage to flow down to a defrosting water receiving tray, and the defrosting water being evaporated by the condenser. 2. A condenser and a defrosting water receiving tray for evaporation outside the refrigerator are provided at a position lower than the evaporator and the defrosting water receiving tray in the refrigerator, and a defrosting water outlet pipe from the defrosting water receiving tray in the refrigerator is condensed. The refrigerator according to claim 1, which is led to an upper part of the container. 3. The refrigerator according to claim 1, wherein the compressor, the condenser, and the defrosting water receiving tray for evaporation from the outside of the refrigerator are arranged in a left and right direction in the refrigerator machine component unit. 4. The refrigerator according to claim 1, wherein a condenser is disposed below the defrosting water tray for evaporation outside the refrigerator. 5. The refrigerator according to claim 1, wherein the defrosting water receiving tray for evaporation outside the refrigerator is provided with a condenser for drainage evaporation in addition to a condenser mainly for condensing the refrigerant. 6. A refrigerator machine product unit containing a compressor, a condenser, an evaporator, an internal fan, and the like, and an independent refrigerator box body, and the refrigerator machine product unit is coupled to an upper portion of the refrigerator box body. In such a refrigerator, the evaporation defrosting water tray with a hot gas pipe is installed at a position lower than the defrosting water tray in the refrigerator, and the defrosting water during defrosting is removed from the evaporation defrosting water tray in the refrigerator. A refrigerator characterized by comprising a means for allowing the defrosted water to naturally flow down to the frosted water receiving tray, and evaporating the defrosted water in the evaporation defrosting water receiving tray. 7. A refrigerator machine product unit containing a compressor, a condenser, an evaporator, an internal fan, and the like, and an independent refrigerator box body, and the refrigerator machine product unit is coupled to the upper part of the refrigerator box body. In such a refrigerator, a defrosting water receiving tray for evaporation outside the refrigerator equipped with a condenser is provided at an arbitrary position in the unit, and defrosting water for defrosting is removed from the inside defrosting water receiving tray for evaporation outside the refrigerator. A refrigerator comprising pump means for moving the defrosted water to a tray and allowing the defrosted water to be evaporated by the condenser. 8. A refrigerator machine product unit accommodating a compressor, a condenser, an evaporator, an internal fan, and the like, and an independent refrigerator box body, and the refrigerator machine product unit is coupled to an upper portion of the refrigerator box body. In the refrigerator configured as described above, the defrosting water receiving tray for evaporation outside the refrigerator is attached to a position lower than the defrosting water receiving tray in the refrigerator, and the defrosting water at the time of defrosting is evaporated from the defrosting water receiving tray in the refrigerator to outside the refrigerator. A refrigerator comprising: means for allowing natural defrost water to flow down to a saucer; and an ultrasonic oscillator that raises the defrost water as minute water droplets and hits the condenser. 9. A refrigerator machine product unit containing a compressor, a condenser, an evaporator, an internal fan, and the like, and an independent refrigerator box body, and the refrigerator machine product unit is coupled to the upper part of the refrigerator box body. In the refrigerator configured as described above, the defrosting water receiving tray for evaporation outside the refrigerator is attached to a position lower than the defrosting water receiving tray in the refrigerator, and the defrosting water at the time of defrosting is evaporated from the defrosting water receiving tray in the refrigerator to outside the refrigerator. A refrigerator comprising: means for causing natural defrost water to flow down to a defrosting water tray; and a porous absorber for pumping the defrosted water downwind of a condenser and a compressor cooling fan by a capillary phenomenon. 10. The refrigerator according to claim 9, wherein the porous absorber is formed so as to extend from the defrosting water tray for evaporation outside the refrigerator to the compressor surface.