JP2007309616A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator capable of improving volume efficiency of a storage chamber by raising a wind speed passing over an evaporating dish surface of the refrigerator, and compactifying the evaporating dish. <P>SOLUTION: A defrost water evaporating device 113 of a refrigerator body 101 lower part is provided with the evaporating dish 103 collecting defrost water 114, a lid member 201 sealing the evaporating dish 103, a first opening 202 composed of the lid member 201, and a second opening 203. A air blowing means 204 is provided on the first opening 202, and a dipping pipe 206 being a high pressure piping to be one part of a cooling system as a defrost water heating means 105 is provided in the evaporating dish 103. By forcibly causing convection and raising a water temperature, the defrost water evaporating device is substantially compactified and simplified. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a defrosted water evaporator and a refrigerator.

  In recent years, refrigerators have become more energy-saving from the viewpoint of protecting the global environment, and are required to be small and can be used in large quantities, so to speak, space-saving, large capacity, and improved usability and storage. Recently, there is a refrigerator in which a compressor disposed in a refrigerator machine room is disposed in a portion that becomes a dead space of a refrigerator compartment when viewed from the consumer at the top of the refrigerator, and the capacity of the storage room at the bottom of the refrigerator body is increased. . Since the refrigerator cools the storage room in the refrigerator, the defrost water that is generated when the air in the refrigerator is always cooled is guided to the lower part of the refrigerator through the drainage path and collected to make the maintenance free for consumers. A mechanism for evaporating is required. Since this defrost water evaporator currently exists as an ineffective volume at the lower part of the refrigerator main body, it is an urgent need to make the defrost water evaporator compact from the viewpoint of space saving, large capacity, and ease of use and storage.

  Conventionally, this type of refrigerator defrost water evaporation method employs a method in which the heat obtained by cooling or radiating heat-generating components is used to evaporate the defrost water stored in the evaporating dish (heat source). There are various methods, for example, the defrosted water may be directly heated).

  FIG. 12 shows a conventional refrigerator described in Patent Document 1. As shown in FIG. As shown in FIG. 12, provided on the upper side of the refrigerator body 101, the refrigeration cycle storage unit 102 in which the refrigeration cycle is stored, the evaporating dish 103 provided at the lower part of the refrigerator body 101, and the refrigerator body 101, Next to the refrigeration cycle storage unit 102, an evaporator 104 and a heat source means 105 for removing frost on the surface of the evaporator 104 are provided. As the outside air is sucked into the water passage 106 for supplying the defrosting water dripped when the heat source means 105 is heated to the evaporating dish 103 and the refrigeration cycle storage unit 102, the outside air is heated by the heat generating parts of the refrigeration cycle to warm the outside air. A fan device 107 that is weathered and a duct 108 that is provided in the refrigerator main body 101 and supplies hot air discharged from the fan device 107 to the evaporating dish 103 are provided.

Next, an outline of the configuration of a conventional refrigeration cycle will be described with reference to FIGS. The high-temperature gas refrigerant discharged from the compressor 109 becomes a medium-temperature liquid refrigerant in the process of passing through the condenser 110, and becomes a low-temperature liquid refrigerant by the capillary tube 111. In the process where the low-temperature liquid refrigerant passes through the evaporator 104, evaporation occurs and becomes a low-temperature gas refrigerant, which is a closed loop returning to the compressor 109. Since the evaporator 104 has a low temperature, it forms as frost on the surface of the evaporator 104 when exchanging heat with the air in the storage compartment 112. Since the frost accumulates as the operation time of the compressor 109 elapses, the heat source means 105 is appropriately heated to remove the frost on the surface of the evaporator 104, the frost is defrosted, and the defrosted water passes through the water passage 106 and the evaporating dish. 103. The compressor 109 and the condenser 110 which are heat generating components in the refrigeration cycle storage unit 102 are cooled and radiated by the air sucked from the outside air by the fan device 107, and the generated hot air is sent from the duct 108 to the opening of the evaporating dish 103. The water temperature in the evaporating dish 103 is raised to evaporate.
JP-A-8-247626

  In the case of this type of evaporation method, there are the following three items as factors for evaporating water. The first is the surface wind speed, the second is the water temperature, and the third is the area of the opening where water and outside air contact. However, in the above-described conventional configuration, the wind speed passing through the surface of the evaporating dish 103 is weak and water evaporation is inefficient, and since the heat source is not disposed at the bottom, the wind of the duct 108 from the heat source to the bottom is Since the heat loss in the road is large and it is inefficient to raise the water temperature, it is necessary to increase the opening area of the evaporating dish 103, and there is a problem that the volumetric efficiency of the storage chamber cannot be increased. In order to evaporate water, a heating source that raises the water temperature alone requires a heat source with a considerable capacity, which is very inefficient from the viewpoint of energy saving and space saving. In order to evaporate the frost water, heating means for raising the water temperature and a certain or higher wind speed for reducing the saturated vapor pressure on the water surface are required.

  The present invention solves the above-mentioned conventional problems, by significantly improving the wind speed of the water surface, which is the first factor, as a factor for evaporating water, and by increasing the water temperature, which is the second factor, by the heating means. Evaporation performance can be greatly improved, and by reducing the opening area of the evaporating dish and making it compact, the volumetric efficiency of the storage room can be greatly increased, so the food storage efficiency of consumers can be greatly improved. Another object of the present invention is to provide a refrigerator with improved usability and storage.

  In order to solve the above-mentioned conventional problems, a defrost water evaporation device is provided at the lower part of the refrigerator body, an evaporator and a drainage path for guiding the defrost water of the evaporator are provided above the defrost water evaporation device, The defrosting water evaporator is provided with an evaporating dish for collecting defrosting water, a lid member for covering the upper surface of the evaporating dish, a first opening and a second opening in the lid member, and the first opening. A heating means for heating the defrosted water in the evaporating dish, forming an air path between the first opening and the second opening, and forcing the convection The water temperature is raised by the heating means.

  As a result, a single air path configuration for evaporating the defrost water is possible, and since the heat exchange loss from the heat source to the defrost water can be minimized to raise the water temperature, the wind speed on the water surface is greatly improved, and the water temperature is reduced. Since evaporating performance can be improved by raising the efficiency efficiently, the defrosting water evaporator can be greatly reduced in size and simplified.

  The present invention solves the above-described conventional problem, and can have a single air path configuration for evaporating defrost water, and can minimize the heat exchange loss from the heat source to the defrost water to raise the water temperature. The defrosting water evaporation device can be greatly compact and simplified, the volumetric efficiency of the storage room can be greatly increased, the food storage efficiency of consumers can be greatly improved, and the ease of use and storage It is possible to provide an improved refrigerator.

  The invention according to claim 1 is provided with a defrosting water evaporator at a lower part of the refrigerator main body, and an evaporator and a drainage path for leading the defrosting water of the evaporator above the defrosting water evaporator. The frost water evaporator is provided with an evaporating dish for collecting defrost water, a lid member for covering the upper surface of the evaporating dish, a first opening and a second opening in the lid member, and the first opening. A heating means is provided in the evaporating dish for heating the defrosted water, and an air passage is formed between the first opening and the second opening, and the water temperature is forcibly convected. Is increased by the heating means, a single air passage configuration for evaporating the defrost water is possible, and heat exchange loss from the heat source to the defrost water can be minimized to increase the water temperature. The water evaporation device can be greatly compact and simplified, and the volumetric efficiency of the storage room is greatly increased. It is possible, can greatly improve the storage efficiency of the consumers of food, it is possible to provide a further its ease of use and storage of a refrigerator with improved of.

  The invention according to claim 2 is the invention according to claim 1, wherein the heating means is a dip pipe using a high-pressure pipe constituting a part of a cooling system, the dip pipe has a U-turn configuration, A single air passage configuration for evaporating defrost water is possible by aligning the inlet and outlet of the dip pipe and disposing inside the evaporating dish from the second opening, and immersing as a heat source to raise the water temperature The heat exchange loss from the pipe to the defrost water can be minimized, and since it is not necessary to ensure the sealing performance of the pipe outlet and water leakage, the defrost water evaporator is greatly reduced in size, simplified and inexpensive. It can be configured, and the volumetric efficiency of the storage room can be greatly increased, the food storage efficiency of the consumer can be greatly improved, and an inexpensive refrigerator with improved usability and storage can be provided.

  The invention according to claim 3 is the invention according to claim 2, wherein the dip pipe is arranged in the vicinity of the bottom surface of the evaporating dish, so that the effect of increasing the water temperature is maximized even with a small amount of defrosted water. In addition to making it effective, the defrost water evaporation device can be made more compact and simplified, and the volumetric efficiency of the storage room can be greatly increased, and the consumer food can be stored. The efficiency can be greatly improved, and an inexpensive refrigerator with improved usability and storage can be provided.

  The invention according to claim 4 is the invention according to claim 2 or 3, wherein the dip pipe is fixed by a holding portion formed on the bottom surface of the evaporating dish. It is easy to install the pipe in the evaporating dish of this type, and the heat conduction of the pipe is promoted to the bottom where the contact area with the defrost water is the widest. Since it does not become resistance, the defrost water evaporation device can be made more compact and simplified, the volumetric efficiency of the storage room can be greatly increased, and the food storage efficiency of consumers can be greatly improved. An inexpensive refrigerator with improved usability and storage can be provided.

  The invention according to claim 5 is the invention according to any one of claims 2 to 4, wherein the dip pipe is formed in a spiral shape, thereby ensuring a maximum per-pipe and minimum bending R. The length and density can be secured, the defrost water evaporation device can be made more compact, the food storage efficiency of the consumer can be improved, and an inexpensive refrigerator with improved convenience and storage can be provided. .

  The invention according to claim 6 is the invention according to any one of claims 2 to 5, wherein the dip pipe is configured to use a pipe excluding the pipe near the discharge of the compressor. By elevating the pipe, there is no danger of holes in the evaporating dish or water leakage due to installation near the bottom surface or holding the bottom surface. This makes it possible to provide a cheaper refrigerator for consumers.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 is a central cross-sectional view of the refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a perspective view of the defrosted water evaporator of the refrigerator in Embodiment 1 of the present invention.

  In FIG. 1, a defrost water evaporator 113 is disposed below the refrigerator main body 101. The evaporator 104 and the drainage passage 106 that guides the defrosted water 114 of the evaporator 104 to the outside of the warehouse are configured above the defrosted water evaporator 113, and the defrosted water 114 generated by the evaporator 104 is removed from the defrosted water evaporator. It is the structure led to 113.

  As shown in FIG. 2, the defrosting water evaporator 113 includes an evaporating dish 103 that receives the defrosting water 114, a lid member 201 that seals the upper surface of the evaporating dish 103, and an upper part of the evaporating dish 103 with a lid member 201. The configured first opening 202 and the second opening 203 are provided, and the air blowing means 204 is configured above the first opening 202. The lid member 201 can be the same component as the evaporating dish 103. For example, the lid member 201 and the evaporating dish 103 can be made of the same mold and used as a hinge mechanism so that the sealing property between the lid member 201 and the evaporating dish 103 can be improved. It can improve and reduce the number of parts. The lid member 201 forms an air passage 205 in the internal space of the first opening 202 and the second opening 203, forcibly convects air in the direction of the arrow of the air passage 205, and supplies heat to the second opening 203. 105, a dip pipe 206, which is a high-pressure and high-temperature pipe that becomes a part of the cooling system 105, is formed in a U-turn shape, and the inlet pipe 207 and the outlet pipe 208 of the dip pipe 206 are aligned and connected to the main body. To do.

  Next, the evaporation action of the defrost water evaporator 113 will be described. Although the detailed description of the refrigeration cycle is omitted because it has the same configuration as the conventional one, the evaporator 104 is low in temperature, and thus forms frost on the surface of the evaporator 104 when heat is exchanged with the air in the storage compartment 112.

  Since the frost accumulates as the operation time of the compressor 109 elapses, the heat source means 115 is appropriately heated to remove the frost on the surface of the evaporator 104, the frost is defrosted, and the defrosted water 114 is removed via the drainage path 106. It is supplied to the frost water evaporator 113. The defrost water 114 is heated by the immersion pipe 206 which is a heat source, and the water temperature rises. The blowing means 204 supplies fresh air having a low saturated water vapor pressure to the air layer above the defrost water 114 so that the warmed defrost water 114 is promoted to evaporate.

  For example, the driving method of the blowing unit 204 can be synchronized with the compressor 109 to effectively use the heat source of the immersion pipe 206. By sealing the upper part of the evaporating dish 103, the air sucked and discharged by the blowing means 204 is discharged to the second opening 203 through the air passage 205 passing over the water surface of the defrost water 114. Since the inlet pipe 207 and the outlet pipe 208 of the immersion pipe 206 are taken out in a uniform manner, the upper sealing configuration of the evaporating dish 103 is facilitated, there is no need to consider the sealing property of the pipe outlet, and the assembly at the factory is also easy. improves. Therefore, it becomes the independent wind path 205 which passes the 1st opening part 202 and the 2nd opening part 203, and becomes a big wind speed increase compared with the past. By increasing the wind speed, the evaporation performance of the defrost water 104 is greatly improved. In addition, since the heat source is composed of the immersion pipe 206, which is a part of the high pressure piping of the cooling system, the heat exchange loss can be minimized, and it can be constructed at a very low cost compared to the case of using a heat source such as a heater. Yes, it also saves energy in terms of power consumption.

  As described above, in the present embodiment, the defrost water evaporator is provided at the lower part of the refrigerator body, the evaporator is provided above the defrost water evaporator, and the drainage path that guides the defrost water of the evaporator is provided. The defrosting water evaporator is provided with an evaporating dish for collecting defrosting water, a lid member for sealing the evaporating dish, a first opening composed of a lid member, and a second opening. The air blowing means in the part, the defrosting water heating means are provided in the evaporating dish, the air path is constituted between the first opening and the second opening, and the water temperature is raised by the temperature while forcibly convection, The defrosting water heating means is an immersion pipe using a high-pressure pipe constituting a part of the cooling system, and the immersion pipe has a U-turn configuration, the immersion pipe inlet and outlet are aligned, and the evaporating dish from the second opening. By arranging it inside, a single air passage configuration for evaporating the defrost water is possible, and the water temperature is raised. The heat exchange loss from the submerged pipe, which is the heat source, to the defrost water can be minimized, and it is not necessary to ensure the sealing performance of the pipe outlet and water leakage, making the defrost water evaporation device much more compact and simple. It is possible to increase the volumetric efficiency of the storage room, greatly improve the food storage efficiency of consumers, and provide an inexpensive refrigerator with improved usability and storage.

  In the present embodiment, the heating means is the immersion pipe 206 of the high-pressure and high-temperature piping that is a part of the cooling system. Further, it is possible to reduce the size of the storage room, greatly increase the volumetric efficiency of the storage room, greatly improve the food storage efficiency of the consumer, and provide a refrigerator with improved usability and storage.

(Embodiment 2)
FIG. 3 is a perspective view of a defrosting water evaporation device for a refrigerator according to Embodiment 2 of the present invention.

  The difference from the first embodiment is that the immersion pipe 206 of the defrosting water evaporation device 301 in FIG. Thus, even with a small amount of defrosted water 114, the effect of increasing the water temperature can be maximized, and the air resistance of the air passage 205 can be prevented.

  As described above, in the present embodiment, the immersion pipe is arranged in the vicinity of the bottom surface of the evaporating dish, thereby maximizing the effect of increasing the water temperature even with a small amount of defrosted water, and air resistance of the air passage Therefore, the defrosting water evaporation device can be further downsized and simplified, the storage efficiency of the food for the consumer can be improved, and an inexpensive refrigerator with improved usability and storage property can be provided.

(Embodiment 3)
FIG. 4 is a perspective view of a defrosting water evaporation device for a refrigerator according to Embodiment 3 of the present invention.

  The difference from the first embodiment is that the dip pipe 206 is fixed by the holding portion 403 formed on the bottom surface of the evaporating dish 402 of the defrost water evaporating apparatus 401 in FIG. It is easy to incorporate the immersion pipe 206 into the dish 402 and promotes the heat conduction of the pipe to the bottom surface where the contact area with the defrost water 114 is the widest. It can be set as the structure which does not become air resistance.

  As described above, in the present embodiment, the immersion pipe is fixed by the holding portion formed on the bottom surface of the evaporating dish so that the pipe can be easily incorporated into the narrow thin box-shaped evaporating dish and defrosted water is used. Since the heat conduction of the piping is promoted to the bottom surface with the widest contact area with a small amount of defrost water, the effect of increasing the water temperature is maximized and the resistance of the air in the air passage is not increased. It can be made compact and simplified, can improve the food storage efficiency of consumers, and can provide an inexpensive refrigerator with improved usability and storage.

(Embodiment 4)
FIG. 5 is a perspective view of a defrosting water evaporation device for a refrigerator according to Embodiment 4 of the present invention.

  The difference from the first embodiment is that the immersion pipe 502 of the defrosting water evaporation apparatus 501 in FIG. 5 has a spiral shape, which ensures a maximum length by securing a minimum bending R per pipe. Densification is possible.

  As described above, in the present embodiment, the immersion pipe is configured to have a spiral shape, which ensures a maximum length by securing a minimum bending R per pipe and a maximum density, and evaporating defrost water. The device can be further downsized, the storage efficiency of the consumer's food can be improved, and an inexpensive refrigerator with improved usability and storage can be provided.

(Embodiment 5)
FIG. 6A is a perspective view of the refrigerator in the fifth embodiment of the present invention, and FIG. 6B is a configuration explanatory view of the immersion pipe of the refrigerator in the fifth embodiment of the present invention. FIG. 7 is a diagram showing an image of a refrigeration cycle Mollier diagram according to Embodiment 5 of the present invention.

  The difference from the first embodiment is that the immersion pipe 502 in FIG. 6 does not directly use the compressor discharge vicinity pipe 601 but uses a pipe other than this. For example, the upper compressor 109 of the refrigerator main body 101 is configured, and the compressor 109 is connected to the condenser pipe 602 attached to the refrigerator main body 101 and connected to the immersion pipe 502 at the lower portion of the refrigerator main body 101. As a result, the high-temperature and high-pressure gas refrigerant discharged from the compressor 109 undergoes condensation with outside air in the process of passing through the condensation pipe 602 formed in the refrigerator main body 101, and when it enters the immersion pipe 502, it corresponds to the condensation temperature (at most) The liquid and gas are two-phased at about 60 degrees). This will be described together with a diagram showing an image of the refrigeration cycle Mollier diagram of FIG. The high-temperature and high-pressure gas refrigerant from the compressor 109 is a point a (td, which may be, for example, 100 degrees or more), and a condensing temperature equivalent point b (tc, maximum) at the outlet of the condenser pipe 502, that is, the junction with the immersion pipe 502 However, the refrigerant gas temperature is within a constant temperature range even at high pressure, as can be seen from the Mollier diagram. Therefore, by installing the pipe in the vicinity of the bottom surface or holding the bottom surface, a hole is opened in the evaporating dish, thereby eliminating the risk of water leakage. The arrangement of the compressor 109 and the arrangement of the condensing pipe 602 are not limited to the arrangement shown in FIG.

  As described above, in the present embodiment, the immersion pipe does not directly use the pipe near the discharge of the compressor, but uses a pipe excluding this, so that the pipe is installed near the bottom due to an increase in the discharge temperature of the compressor. By holding the bottom surface, etc., there is no danger of water leaking or the like due to a hole in the evaporating dish. Furthermore, the evaporating dish and holding mechanism can be designed with inexpensive materials by expanding the choice of evaporating dish materials. An inexpensive refrigerator can be provided.

(Embodiment 6)
FIG. 8 is a perspective view of a defrosting water evaporation device for a refrigerator according to Embodiment 6 of the present invention. FIG. 9 is a yz central cross-sectional view of the defrosted water evaporator of FIG. FIG. 10 is an xz central cross-sectional view of the defrosted water evaporator of FIG. FIG. 11: is an assembly block diagram of the defrost water evaporation apparatus of the refrigerator in Embodiment 6 of this invention. This will be described with reference to FIGS.

  As shown in FIG. 8 to FIG. 11, a defrosting water evaporation device 801 is provided at the lower part of the refrigerator main body 101, and the drainage path 106 that guides the evaporator 103 and the defrosting water 114 of the evaporator 103 above the defrosting water evaporation device 801. The defrosting water evaporation device 801 includes an evaporating dish 402 for collecting defrosting water 114, a lid member 201 for sealing the evaporating dish 402, and a first opening 202 constituted by the lid member 201, The second opening 203 is provided. The blower means 204 is provided in the first opening 201, and the dip pipe 502, which is a high-pressure high-temperature pipe that becomes a part of the cooling system as the heat source means to the second opening 203 in the evaporating dish 402. The dip pipe 502 has a U-turn shape, and the air passage 205 is formed between the first opening 202 and the second opening 203. A back cover 908 is configured to the defrosted water evaporator 801. Next, the evaporating action of the defrosted water evaporation device 801 will be described.

  Although the detailed description of the refrigeration cycle is omitted because it has the same configuration as the conventional one, the evaporator 104 is low in temperature, and thus forms frost on the surface of the evaporator 104 when heat is exchanged with the air in the storage compartment 112. Since the frost accumulates as the operation time of the compressor 109 elapses, the heat source means 115 is appropriately heated to remove the frost on the surface of the evaporator 104, the frost is defrosted, and the defrosted water 114 is removed via the drainage path 106. It is supplied to the frost water evaporator 801. The defrost water 114 is heated by the immersion pipe 502 which is a heat source, and the water temperature rises. The blowing means 204 supplies fresh air having a low saturated water vapor pressure to the air layer above the defrost water 114 so that the warmed defrost water 114 is promoted to evaporate. For example, the driving method of the blowing unit 204 can be synchronized with the compressor 109 to effectively use the heat source of the immersion pipe 502.

  As shown in FIG. 8, the blower means 204 can use a box-shaped fan (for example, 80 mm square) to reduce the size of the defrosted water evaporation device 801. The shape of the possible lid member 201 is set, and the air blowing means 204 is obliquely configured on the lid member 201 as shown in FIG. By sealing the upper part of the evaporating dish 103 with the lid member 201, the air sucked and discharged by the blowing means 204 is discharged to the second opening 203 through the air passage 205 passing over the surface of the defrost water 114. To do. Since the inlet pipe 207 and the outlet pipe 208 of the dip pipe 502 are taken out together, the upper sealing structure of the evaporating dish 103 is facilitated, it is not necessary to consider the sealing performance of the pipe take-out part, and assembly at the factory is also possible. improves.

  Therefore, it becomes the independent wind path 205 which passes the 1st opening part 202 and the 2nd opening part 203, and becomes a big wind speed increase compared with the past. By increasing the wind speed, the evaporation performance of the defrost water 104 is greatly improved. The depth of the defrost water evaporator 801 is set to be approximately the same as the depth of the cooling chamber 901 as shown in FIG. As a result, the capacity of the storage chamber 112 can be maximized, and the case 902 can have a substantially cubic structure with good storage. The cover member 201 of the defrosting water evaporation device 801 is configured so as to accommodate the power line connecting portion 903 of the blowing means 204 as shown in FIG.

  As a result, even when water leaks from the worst evaporating dish 402, it is possible to prevent water from being applied to the power line connecting portion 903. As shown in FIGS. 8 to 11, the lid member 201 is provided with a drainage port 904 that collects the defrosted water 114 passing from the drainage path 106. The shape of the drainage port 904 is recessed in a mortar shape, so that the short circuit of the air passage 205 can be minimized, the opening area of the drainage port 904 can be designed to be minimized, and the evaporation performance deterioration can be designed to the minimum. Moreover, since the drainage path 106 is arranged almost at the center of the refrigerator body 101, the drainage path slope 905 shown in FIG. 10 can be designed to be minimized, leading to a reduction in invalid space. Moreover, the wind speed of the air path 205 can be significantly improved by providing the lid member 201 with a partition portion 906 that partitions the suction air path and the discharge air path. As shown in FIG. 11, the lid member 201 and the evaporating dish 402 are fixed by a claw 907.

  Accordingly, when the evaporating dish 402 is molded from a resin material, even if deformation occurs due to molding variation, it can be corrected and fixed by fixing with the claw 907. There is no loss. As shown in FIG. 8, the back cover 908 forms a suction hole 910 and a discharge hole 911 to the refrigerator main body 101 rear oblique portion 909 to suck and discharge outside air and air. By configuring the suction hole 910 and the discharge hole 911 in the back oblique portion 909, an air passage can be secured even if the refrigerator main body 101 is perfectly installed on the wall of the house.

  Further, when the refrigerator is used over time or over time, the suction hole 910 of the back cover 908 is likely to be blocked by dust. Therefore, by providing a gap portion 913 between the mounting table 912 and the bottom surface of the refrigerator main body 101, a fresh air path can be secured even if the suction hole 910 of the back cover 908 is blocked, and reliability due to dust or the like can be secured. Can be improved significantly. The gap portion 913 extends to the partition portion 906 in the refrigerator width direction. A notch portion 914 is provided in the evaporating dish 402, and the upper limit water level of the evaporating dish storage area is set at the lower end of the notch part 914. By adopting a structure that receives water, the structure prevents water from leaking to the floor immediately. Further, the evaporating dish 402 is provided with a service drain port 915 at the upper part (at least 50 mm from the floor) of the second opening 203 on the opposite side constituting the air blowing means 204, and the bottom part 916 of the evaporating dish 402 is provided with this service drainage. Since it is inclined to the mouth 915, water is collected to the service drain outlet 915 side.

  Therefore, when the refrigerator main body 101 is tilted when the refrigerator is moved, water is collected from the evaporating dish 402 through the drain outlet 915, and the drain outlet 915 is 50 mm or more from the floor. In addition, since the bottom 916 (FIG. 11) of the evaporating dish 402 is inclined, water gathers to the service drain 915 side, so that water can be easily collected from the service drain 915. The structure is also considered from the viewpoint.

  As shown in FIG. 11, the immersion pipe 502 can be formed in a spiral shape to secure a maximum length by securing a minimum perimeter and minimum bending R, and heat exchange with water compared to straight piping. Will also improve. The diameter d of the spiral circle of the dip pipe 502 is set to ½ or less of the height h of the evaporating dish 402, so that the effect of increasing the water temperature can be maximized even if the amount of defrost water 114 is small. The structure does not cause air resistance. In addition, since the heat source is composed of a dip pipe 502, which is a part of the high pressure piping of the cooling system, heat exchange loss can be minimized, and it can be constructed at a very low cost compared to the case of using a heat source such as a heater. Yes, it also saves energy in terms of power consumption. The dipping pipe 502 is provided with a claw 917 for fixing to the evaporating dish 402 so that the dipping pipe 502 can be easily incorporated into the narrow thin box-shaped evaporating dish 402 and the bottom surface of the defrosting water 114 has the largest contact area. By promoting the conduction, even a small amount of defrosted water 114 maximizes the effect of increasing the water temperature and improves the evaporation capacity.

  As shown in FIG. 8, the joining of the immersion pipe 502 and the condenser pipe 918 consolidates the joining portions, so that the work efficiency in the factory is also improved. Next, as shown in FIG. 11, the assembly configuration of the defrosted water evaporator 801 is such that the immersion pipe 502 is first fitted into the fixing claw 917 of the evaporating dish 402, and then the lid member 201 is configured to the evaporating dish 402. The defrosting water evaporation device 801 is assembled by fitting into 907 and then fitting the blowing means 204 into the first opening 202. Next, the defrosting water evaporation device 801 is fitted into the recess of the mounting table 912 and attached from the lower part of the refrigerator main body 101. By setting it as this structure, since the attachment to the refrigerator main body 101 can simplify the defrost water evaporation apparatus 801, the working efficiency in a factory improves.

  As described above, in the present embodiment, the defrost water evaporator is provided at the lower part of the refrigerator body, the evaporator and the drainage path for guiding the defrost water of the evaporator are provided above the defrost water evaporator, and the removal is performed. The frost water evaporation device includes an evaporating dish for collecting defrost water, a lid member for sealing the evaporating dish, a first opening composed of a lid member, and a second opening, and the first opening The defrosting water heating means is provided in the evaporating dish, and the air path is formed between the first opening and the second opening, and the water temperature is raised by the temperature while forcibly convection. The frost water heating means is a dip pipe using a high-pressure pipe that constitutes a part of the cooling system, and the dip pipe has a U-turn configuration. The dip pipe inlet and outlet are aligned and the inside of the evaporating dish from the second opening. In order to elevate the water temperature, a single air passage configuration for evaporating the defrost water is possible. The heat exchange loss from the submerged pipe, which is the heat source, to the defrost water can be minimized, and it is not necessary to ensure the sealing performance of the pipe outlet and water leakage, so the defrost water evaporator is greatly compact and simplified. It is possible to increase the volumetric efficiency of the storage room, greatly improve the food storage efficiency of consumers, and provide an inexpensive refrigerator with improved usability and storage.

  As described above, the defrosting water evaporator of the refrigerator according to the present invention can have a single air passage configuration for evaporating the defrosting water, and from the immersion pipe that is a heat source to raise the water temperature to the defrosting water. Since heat exchange loss can be minimized, and there is no need to ensure the sealing performance of the pipe outlet and water leakage, the defrost water evaporation device can be greatly reduced in size and simplified. It can be applied to a variety of refrigeration equipment such as air conditioners, air conditioners, and vending machines, or fields where defrost water needs to be evaporated.

Central sectional view of the refrigerator according to Embodiment 1 of the present invention. The perspective view of the defrost water evaporation apparatus of the refrigerator in Embodiment 1 of this invention The perspective view of the defrost water evaporation apparatus of the refrigerator in Embodiment 2 of this invention The perspective view of the defrost water evaporation apparatus of the refrigerator in Embodiment 3 of this invention The perspective view of the defrost water evaporator of the refrigerator in Embodiment 4 of this invention (A) The perspective view of the refrigerator in Embodiment 5 of this invention (b) Structure explanatory drawing of the immersion pipe of the refrigerator in Embodiment 5 of this invention The figure which shows the image of the refrigerating-cycle Mollier diagram in Embodiment 5 of this invention The perspective view of the defrost water evaporation apparatus of the refrigerator in Embodiment 6 of this invention Yz center sectional drawing of the defrost water evaporation apparatus of the refrigerator of FIG. Xz center sectional drawing of the defrost water evaporation apparatus of the refrigerator of FIG. Assembly diagram of the defrosting water evaporator of the refrigerator in Embodiment 6 of the present invention Cross-sectional view of a conventional refrigerator Explanatory drawing of refrigeration cycle of conventional refrigerator

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Refrigerator main body 103 Evaporating dish 104 Evaporator 105 Defrost water heating means 106 Drain path 113 Defrost water evaporator 114 Defrost water 201 Lid member 202 1st opening part 203 2nd opening part 204 Blowing means 205 Air path 206 Immersion pipe 207 Inlet pipe 208 Outlet pipe 301 Defrosted water evaporation device 401 Defrosted water evaporation device 402 Evaporating dish 403 Holding part 501 Defrosted water evaporation device 502 Immersion pipe 601 Compressor discharge vicinity piping

Claims (6)

  A defrosting water evaporation device is provided at the lower part of the refrigerator body, an evaporator and a drainage path for guiding the defrosting water of the evaporator are provided above the defrosting water evaporation device, and the defrosting water evaporation device supplies defrosting water. An evaporating dish for collecting water, a lid member for covering the upper surface of the evaporating dish, a first opening and a second opening provided in the lid member, and a blowing means provided in the first opening, and the evaporating dish A heating means for heating the defrost water is provided in the inside, an air passage is formed between the first opening and the second opening, and the water temperature is raised by the heating means while forcibly convection. Features a refrigerator.   The heating means is a dip pipe using a high-pressure pipe constituting a part of the cooling system, and the dip pipe has a U-turn configuration, and the dip pipe inlet and outlet are aligned, and the inside of the evaporating dish is opened from the second opening. The refrigerator according to claim 1, wherein the refrigerator is disposed.   The refrigerator according to claim 2, wherein the immersion pipe is disposed near a bottom surface of the evaporating dish.   The refrigerator according to claim 2 or 3, wherein the dip pipe is fixed by a holding portion formed on a bottom surface of the evaporating dish.   The refrigerator according to any one of claims 2 to 4, wherein the immersion pipe has a spiral shape.   The refrigerator according to any one of claims 2 to 5, wherein a pipe excluding a compressor discharge vicinity pipe is used as the immersion pipe.

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