JP2008002735A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve draining performance of a container as an evaporation pan when moving a refrigerator while improving an evaporating capacity of a defrosted water evaporating device. <P>SOLUTION: A machine chamber is disposed at a rear lower part of the refrigerator, the defrosted water evaporating device for evaporating the defrosted water of an evaporator of the refrigerator is disposed in the machine chamber, the defrosted water evaporating device comprises: a container 201 receiving the defrosted water; a cover 202 disposed on a top face of the container 201 and having at least two or more opening portions 203; and an air blower means 205 disposed on the opening portions 203, and a drain port 206 for discharging the defrosted water from the refrigerator to the external is formed on a back face of the container 201. As evaporating performance is improved by improving a wind speed at a water level, and an opening area of the container as an evaporation pan is reduced, the compact defrosted water evaporating device is easily constituted, and further the usability is improved since the water is easily discharged from the container in moving the refrigerator. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a refrigerator provided with a defrosting water evaporation device.

  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. 8 shows a conventional refrigerator described in Patent Document 1. As shown in FIG. As shown in FIG. 8, provided on the upper side of the refrigerator main body 801, a refrigeration cycle storage unit 802 in which a refrigeration cycle is stored, an evaporating dish 803 provided at the lower part of the refrigerator main body 801, and a refrigerator main body 801, Next to the refrigeration cycle storage unit 802, an evaporator 804 and heat source means 805 for removing frost on the surface of the evaporator 804 are provided. As the outside air is sucked into the water passage 806 for supplying the defrosting water dripped when the heat source means 805 is heated to the evaporating dish 803 and the refrigeration cycle storage portion 802, the outside air is heated and heated by the heat generating components of the refrigeration cycle. A fan device 807 that is weathered and a duct 808 that is provided in the refrigerator main body 801 and that supplies hot air discharged from the fan device 807 to the evaporating dish 803 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 809 becomes a medium-temperature liquid refrigerant in the process of passing through the condenser 810, and becomes a low-temperature liquid refrigerant by the capillary tube 901. In the process where the low-temperature liquid refrigerant passes through the evaporator 804, evaporation occurs and becomes a low-temperature gas refrigerant, which is a closed loop returning to the compressor 809. Since the evaporator 804 has a low temperature, it forms as frost on the surface of the evaporator 804 when exchanging heat with the air in the storage room 811. Since the frost accumulates as the operation time of the compressor 809 elapses, the heat source means 805 is appropriately heated to remove the frost on the surface of the evaporator 804, the frost is defrosted, and the defrosted water passes through the water passage 806 to evaporate the dish. 803 is supplied. The fan 807 cools and dissipates the heat generated from the compressor 809 and the condenser 810 in the refrigeration cycle storage unit 802 by the air sucked from outside air, and the generated hot air is sent from the duct 808 to the opening of the evaporating dish 803. The water temperature in the evaporating dish 803 is increased 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 803 is weak and water evaporation is inefficient, and since the heat source is not disposed at the bottom, the wind of the duct 808 from the heat source to the bottom 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 803, and there is a problem that the volumetric efficiency of the storage chamber cannot be increased. In addition, there is a problem that a water stop is provided at the front end of the drain port, the number of parts is increased, and processing is complicated.

  The present invention solves the above-described conventional problems, and the evaporation performance can be improved by greatly improving the wind speed of the water surface, which is the first factor as a factor for evaporating water. By reducing the area and making it compact, the volumetric efficiency of the storage room can be greatly increased, the food storage efficiency of consumers can be greatly improved, and drainage from the evaporating dish can be facilitated when the refrigerator is moved The object is to provide a refrigerator.

  In order to solve the above conventional problems, the refrigerator of the present invention is provided with a machine room in the lower rear part of the refrigerator, and includes a defrost water evaporation device that evaporates the defrost water of the evaporator of the refrigerator in the machine room, The defrosted water evaporation device includes a container for receiving the defrosted water, a lid provided with at least two openings on the upper surface of the container, and a blowing means in the opening, and the rear surface of the container A drain outlet for discharging the defrost water from the refrigerator to the outside is provided.

  As a result, the evaporation performance can be improved by significantly improving the wind speed on the surface of the water, so that the opening area of the container as the evaporation tray can be reduced and made compact, and a compact defrost water evaporation device can be simplified. In addition, the drainage from the container during the movement of the refrigerator can be facilitated.

  The refrigerator of the present invention can greatly increase the volumetric efficiency of the storage room, greatly improve the food storage efficiency of consumers, and can smoothly discharge defrost water when moving by moving etc. Will improve.

  The invention according to claim 1 is provided with a machine room in a lower rear portion of the refrigerator, and includes a defrost water evaporator that evaporates the defrost water of the evaporator of the refrigerator in the machine room, the defrost water evaporator A container for receiving the defrosted water, a lid provided with at least two or more openings on the upper surface of the container, and a blowing means for the openings, and the defrosted water on the back of the container from the refrigerator By providing a drain outlet that discharges to the outside, it is possible to improve the evaporation performance by greatly improving the wind speed of the water surface, so the opening area of the container as an evaporation dish can be reduced and made compact, A compact defrosting water evaporation device can be easily configured, and drainage from the container during movement of the refrigerator can be facilitated, improving usability.

  According to a second aspect of the present invention, in the first aspect of the invention, the drain port is provided below the blower means, so that water is blown when draining from a container for moving the refrigerator. It is difficult to contact the air and the adverse effect on the air blowing means can be prevented.

  Invention of Claim 3 is the waste_water | drain which discharges defrost water from the said refrigerator outside in the invention of Claim 1 or 2 in the opening part which does not provide a ventilation means among these two or more openings. By providing the opening, it is possible to prevent a short circuit in the vicinity of the blowing means due to the drainage opening, and to suppress an adverse effect on the evaporation performance.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the drain port is formed continuously with the periphery of the opening, thereby facilitating the structure when the drain port is formed. In addition, a cap or the like that closes the drain port is not required, and the cost can be reduced.

  The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the drain port provided in the defrost water evaporator is positioned 90 to 100 mm from the installation floor of the refrigerator. By disposing, if the refrigerator is tilted backward, the defrost water can be easily drained and drainage can be received in a flat container.

  The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the refrigerator is tilted rearward by inclining the drain outlet side of the container side surface of the defrosting water evaporator. The defrost water collected in the container can be drained efficiently.

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein a plurality of ribs are provided in the drain port of the defrost water evaporator, so that the defrost water evaporator has , Can prevent the entry of pests.

  The invention according to claim 8 is the invention according to any one of claims 4 to 7, wherein a rib bent upward is provided at the tip of the defrosting water evaporator, and the height of the rib is the upper end of the container. By being lower than the side, the amount of stored water can be increased by the height of the rib, so that a margin can be provided for the inflow of abnormal defrost water, and the leakage of water to the floor can be prevented.

  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.

  In FIG. 1, a machine room 102 is arranged at the bottom of the refrigerator main body 101. The machine room 102 includes a defrost water evaporator 103, a condenser 104, and a compressor 105. When the capacitor 104 is configured in the machine room 102, in the refrigerator body 101, in the machine room 102 and in the refrigerator body 101, the machine room 102 is used. In some cases, it is configured outside the refrigerator body 101. A drainage path 108 that guides the defrosting water 107 of the evaporator 106 and the evaporator 106 and a drainage pipe 109 that guides the defrosting water 107 downward are configured above the defrosting water evaporator 103 in the machine room 102.

  A heating means 112 is provided below the evaporator 106 to heat the evaporator 106 during defrosting.

  It should be noted that a compressor is disposed in addition to the rear of the storage room at the bottom of the refrigerator, the storage room at the top of the refrigerator is a refrigeration room, and a floor is formed from the central line of the partition between the refrigeration room and the lower storage room of the refrigeration room. It is desirable that the distance to the surface is 800 mm or more and 1000 mm or less from the convenience of the storage room and the refrigerator room at the bottom of the refrigerator.

  2 and 3 are explanatory diagrams of a defrosting water evaporation device for a refrigerator in the present embodiment. The defrosting water evaporation device 103 includes a container 201 as an evaporating dish that receives the defrosting water 107 below the drain pipe 109, and the upper surface of the container 201 is sealed at the top with a lid 202 and includes at least two openings 203. The air passage 204 is formed in the internal space, and the air blowing means 205 for forcing the air to the air passage 204 is provided in any one of the openings 203. In addition, a partition plate 208 that partitions at least two openings 203 is provided.

  A drain port 206 is provided on the back surface (outside of the container) of the container 201 to discharge the defrost water from the refrigerator to the outside through a hole in a machine room cover (not shown).

  In addition, a drain port 206 is disposed at least below the lower end of the motor unit of a blower unit 205 including a motor unit formed in the center of the rectangular frame and a fan formed on the outer periphery of the motor unit.

  Moreover, the drainage port 206 which discharges defrost water to the exterior from the refrigerator main body 101 back is provided in the opening part 203 which does not provide the ventilation means 205 among the opening parts 203 on the periphery of the opening part. A heating unit 207 that promotes evaporation of the defrost water 107 is provided in the container 201.

  Next, the evaporating action of the defrosting water evaporation device 103 and the drainage of the defrosting water will be described with reference to FIGS. 1, 2 and 3. Although a detailed description of the refrigeration cycle is omitted because it has the same configuration as the conventional one, the evaporator 106 is formed at low temperature because of the low temperature, and is formed as frost on the surface of the evaporator 106 when exchanging heat with the air in the storage chamber 111. Since the frost accumulates as the operating time of the compressor 105 elapses, the heat source means 112 is appropriately heated to remove the frost on the surface of the evaporator 106, the frost is defrosted, and the defrosted water 107 passes through the drain pipe 109. 201. By sealing the upper part of the container 201 with the lid 202, the air path 204 has a single air path configuration passing over the water surface of the defrost water 107, and the wind speed is significantly increased as compared with the conventional case. By increasing the wind speed, the evaporation performance of the defrost water 107 is greatly improved. Further, the wind speed increases as the water level in the container 201 rises, and the evaporation performance is also improved. Accordingly, the defrost water 107 evaporates from the container 201 due to the wind speed of the air blowing means 205. It is known that the evaporation performance and the area of the upper surface of the container 201 are generally proportional. Therefore, the area of the upper surface of the defrost water evaporator 103 can be significantly reduced by increasing the wind speed. Further, the evaporation amount can be adjusted by setting the wind speed of the blowing means 205. The operation of the blowing unit 205 is performed in synchronization with the operation of the compressor 105, for example. Note that the operation of the blowing unit 205 is not limited to the operation synchronized with the compressor 105. As the flow of the air in the entire machine room 102, for example, air having the same temperature as the fresh outside air temperature is sucked in from the lower front of the refrigerator, and the air heated by exchanging heat through the condenser 104 is further heated and exchanged with the compressor 105. The entered air enters one of the upper openings of the defrost water evaporator 103. The air that has entered passes through the surface of the defrosted water 107 in the container 201, passes through the blowing means 205 while evaporating, and goes out of the refrigerator body 1 from the other opening of the container 201. It should be noted that the arrangement of the condenser 104 and the compressor 105 may be reversed from that shown in FIG. 1 in this figure, so that the compressor 105 is first subjected to heat exchange with air having a fresh ambient temperature. Therefore, there is an effect of reducing the internal temperature of the compressor. Moreover, the partition 208 is comprised so that the bypass of air may not occur on the suction side and discharge side of the defrost water evaporator 103. The arrangement of the air blowing means 205 is not limited to the arrangement shown in FIG. Further, since the temperature of the defrost water 107 rises due to the rise in the air temperature due to the heat radiation of the compressor 105 and the condenser 104 which are heat generating components in the machine room 102, the saturated water pressure of the defrost water 107 rises. Promotes evaporation.

  In addition, when moving the refrigerator by moving or the like, the defrosted water 107 in the container 201 is generally pulled out. At that time, by tilting the refrigerator main body rearward, the drain port 206 provided on the back surface of the container 201 is opened. It can drain to the outside. If a flat container is installed under the drain, the defrost water 107 can be received and the floor is not wetted.

  And since the drainage port 206 is arranged at least below the lower end of the motor unit of the air blowing means 205, it becomes difficult for water to come into contact with the air blowing means when draining from the container for moving the refrigerator, and to the air blowing means. Can prevent adverse effects.

  Further, since the drain port 206 is provided continuously around the periphery of the opening, the structure of the container 201 at the time of drain port molding becomes easy. In addition, a cap or the like that closes the drain port is not required, and the cost can be reduced.

(Embodiment 2)
FIG. 4 is a central cross-sectional view of the refrigerator in the second embodiment of the present invention.

  The position of the drainage port 404 of the defrosting water evaporator 401 in FIG. 4 is configured so that the height H from the installation floor of the refrigerator main body 403 is 90 to 100 mm. By disposing the drain outlet 404 at a position of 90 to 100 mm from the installation floor surface of the refrigerator main body 403, when the refrigerator main body is tilted rearward, if a flat container is installed on the installation floor surface, the defrost water 107 Can be efficiently recovered.

  As described above, in the present embodiment, the position of the drainage port 404 of the container 502 as the evaporating dish of the defrosting water evaporator 401 is disposed at a position of 90 to 100 mm from the floor surface where the refrigerator main body 403 is installed. By constructing, when the refrigerator body is tilted backward, if a flat container is installed on the installation floor surface, defrost water can be collected efficiently without wetting the floor, so a compact airtight that constitutes the air path The type defrosting water evaporation device can be simply configured, and the food storage efficiency of consumers can be greatly improved.

(Embodiment 3)
FIG. 5 is an explanatory diagram of a defrosting water evaporation device for a refrigerator according to Embodiment 3 of the present invention.

  An inclined surface 505 is formed toward the drain outlet 504 in the side surface of the container 502 of the defrosting water evaporator 501. Thus, when the refrigerator main body 101 is tilted rearward, the defrost water 107 accumulated in the container 502 can be efficiently guided to the drain outlet 504 and drained to the maximum extent.

  As described above, in the present embodiment, when the refrigerator is tilted backward by tilting the drain outlet side of the container side surface of the defrost water evaporator, the defrost water accumulated in the container is reduced. Efficiently guiding to the drain and draining to the maximum extent allows a compact sealed defrost water evaporator that forms the air path to be easily configured, greatly improving the food storage efficiency for consumers.

(Embodiment 4)
FIG. 6 is an explanatory diagram of a defrosting water evaporation device for a refrigerator according to Embodiment 4 of the present invention.

  By providing a plurality of ribs 602 parallel to the flow of water at the drain outlet 603 of the defrost water evaporator 601, such as pests into the defrost water evaporator 601 without impairing water drainage. Prevent entry.

  As described above, in the present embodiment, by providing a plurality of ribs 602 at the drain port of the defrosting water evaporation apparatus, it is possible to suppress the invasion of pests into the evaporation apparatus in an environment preferred by the pests. The compact closed-type defrosted water evaporation device that constitutes the can be easily configured, and the food storage efficiency of consumers can be greatly improved.

(Embodiment 5)
FIG. 7 is an explanatory diagram of a defrosting water evaporation device for a refrigerator according to Embodiment 5 of the present invention.

  A second rib 703 bent upward is provided at the tip of the drain port 702 of the defrosting water evaporator 701, and the height of the rib is lower than the upper end side of the container, so that the amount of stored water is increased by the height of the rib. Therefore, there is a margin for the inflow of abnormal defrost water, and it is possible to prevent water from leaking to the floor.

  As described above, in the present embodiment, a rib bent upward is provided at the tip of the defrost water evaporator, and the height of the rib is lower than the upper end side of the container, so that the amount of water stored is equal to the height of the rib. Since it can be increased, there is a margin for abnormal inflow of defrost water and water can be prevented from leaking to the floor, making it easy to use a compact sealed defrost water evaporator that forms the air path. The food storage efficiency of consumers can be greatly improved.

  As described above, the defrosted water evaporation device for a refrigerator according to the present invention can improve the evaporation performance by greatly improving the wind speed on the water surface, and can be made compact by reducing the opening area of the container as an evaporation dish. Since there is a drain outlet for discharging the remaining defrost water in the container when moving the refrigerator by moving etc., not only the refrigerator but also a dehumidifier, air conditioner, vending machine etc. It can be applied to crossing refrigeration equipment or fields where evaporation of defrost water is necessary.

Central sectional view of the refrigerator according to Embodiment 1 of the present invention. Explanatory drawing of the defrost water evaporation apparatus of the refrigerator in Embodiment 1 of this invention Sectional drawing of the defrost water evaporation apparatus of the refrigerator in Embodiment 1 of this invention Central sectional view of the refrigerator according to the second embodiment of the present invention. Explanatory drawing of the defrost water evaporation apparatus of the refrigerator in Embodiment 3 of this invention Explanatory drawing of the defrost water evaporation apparatus of the refrigerator in Embodiment 4 of this invention Explanatory drawing of the defrost water evaporation apparatus of the refrigerator in Embodiment 5 of this invention Cross-sectional view of a conventional refrigerator Refrigeration cycle diagram of a conventional refrigerator

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Refrigerator main body 102 Machine room 103,401,501,601,701 Defrost water evaporation apparatus 106 Evaporator 107 Defrost water 201,502 Container 203 Opening part 202 Cover 205 Blowing means 206,404,504,603,702 505 inclined surface 602 rib 703 second rib

Claims (8)

  A machine room is provided at the rear lower part of the refrigerator, the machine room is provided with a defrost water evaporator for evaporating the defrost water of the evaporator of the refrigerator, the defrost water evaporator is a container for receiving the defrost water, A lid provided with at least two or more openings on the upper surface of the container, a blowing means provided on the opening, and a drain outlet for discharging the defrost water from the refrigerator to the outside on the back of the container A refrigerator characterized by that.   The refrigerator according to claim 1, wherein the drain port is provided below the air blowing means.   The refrigerator according to claim 1 or 2, wherein a drain outlet for discharging defrosted water from the refrigerator to the outside is provided in an opening of the two or more openings where no air blowing means is provided.   The refrigerator according to claim 3, wherein the drain port is formed continuously around a periphery of the opening.   The refrigerator according to any one of claims 1 to 4, wherein a drain outlet provided in the defrosting water evaporation device is disposed at a position of 90 to 100 mm from an installation floor surface of the refrigerator.   The refrigerator according to any one of claims 1 to 5, wherein a drain outlet side of the container side surface of the defrost water evaporator is inclined.   The refrigerator according to any one of claims 1 to 6, wherein a plurality of ribs are provided at a drain port of the defrosting water evaporator.   The refrigerator according to any one of claims 4 to 7, wherein a rib bent upward is provided at a drain outlet end of the defrosting water evaporator, and a height of the rib is lower than an upper end side of the container. .

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