JP2012032016A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator capable of making the supply of water by a user unnecessary for a mist generator and stably supplying water for the mist generator in the refrigerator provided with the mist generator.SOLUTION: The refrigerator is provided with: a refrigerator body having a storage chamber of a freezing temperature zone and a storage chamber of a refrigerating temperature zone; a freezing cooler for cooling the storage chamber of the freezing temperature zone and a refrigerating cooler for cooling the storage chamber of the refrigerating temperature zone by being provided on the refrigerator body, respectively; and the mist generator having a water storage part and atomizing water in the water storage part and supplying the mist to the storage chamber of the refrigerating temperature zone. The water storage part of the mist generator is provided at a position receiving the defrosting water of the refrigerating cooler.

Description

  Embodiments described herein relate generally to a refrigerator.

  In recent years, in a refrigerator for home use, a mist generator that generates fine mist is provided in the refrigerator body, and the mist generated by the mist generator is supplied to a storage room such as a refrigerator room. It is considered. In this case, the water necessary for generating the mist is generally the water from the water supply tank that the user attaches / detaches. However, in order to continuously operate the mist generating device, the user must There is a problem that water must be replenished regularly.

JP 2006-57999 A Japanese Patent No. 4052353

  Therefore, a refrigerator provided with a mist generating device that eliminates the need for a user to replenish water with respect to the mist generating device and that can stably supply water to the mist generating device is provided.

  According to the refrigerator of the present embodiment, a refrigerator main body having a freezing temperature zone storage chamber and a refrigeration temperature zone storage chamber, and a freezer for cooling the freezing temperature zone storage chamber respectively provided in the refrigerator main body. A refrigeration cooler for cooling a cooler and a storage room in the refrigeration temperature zone, and a mist generation unit that mists water in the water storage unit and supplies the mist to the storage room in the refrigeration temperature zone An apparatus. The water storage part of the said mist generator is installed in the position which receives the defrost water of the said refrigerator for refrigeration.

A longitudinal side view showing a schematic configuration of the entire refrigerator according to the first embodiment. Front view of the refrigerator body with doors and shelves removed Schematic perspective view near the chilled chamber Enlarged front view around the mist dedicated duct 4 is a cross-sectional plan view along line X1-X1. In FIG. 4, a longitudinal side view along line X2-X2 In FIG. 4, a longitudinal side view along line X3-X3 In FIG. 4, a longitudinal side view along line X4-X4 Vertical front view of electrostatic atomizer Diagram showing schematic configuration of refrigeration cycle FIG. 9 equivalent diagram according to the second embodiment FIG. 9 equivalent diagram according to the third embodiment FIG. 9 equivalent diagram according to the fourth embodiment

Hereinafter, refrigerators (refrigerated refrigerators) according to a plurality of embodiments will be described with reference to the drawings. In addition, in each embodiment, the same code | symbol is attached | subjected to the substantially same component, and description is abbreviate | omitted.
(First embodiment)
First, a first embodiment will be described with reference to FIGS. As shown in FIG. 1 and FIG. 2, the refrigerator main body 1 is configured by providing a plurality of storage rooms in a heat insulating box 2 having a vertically long rectangular box shape whose front surface is open. Specifically, in the heat insulation box 2, a refrigeration room 3 and a vegetable room 4 are provided in order from the top, and an ice making room 5 and a small freezer room 6 are provided side by side below, and below these. A freezer compartment 7 is provided. A known automatic ice making device 8 (see FIG. 1) is provided in the ice making chamber 5. The heat insulating box 2 is basically configured by providing a heat insulating material 2c between an outer box 2a made of steel plate and an inner box 2b made of synthetic resin.

  The refrigerator compartment 3 and the vegetable compartment 4 are both storage compartments in a refrigeration temperature zone (for example, 1 to 4 ° C.), and are partitioned vertically by a plastic partition wall 10. A hinged heat insulating door 3 a is provided on the front surface of the refrigerator compartment 3, and a drawer heat insulating door 4 a is provided on the front surface of the vegetable room 4. The lower case 11 which comprises a storage container is connected with the back surface part of this heat insulation door 4a. An upper case 12 smaller than the lower case 11 is provided on the upper portion of the lower case 11.

  The inside of the refrigerator compartment 3 is divided into a plurality of stages by a plurality of shelf boards 13. As shown in FIG. 3, a chilled chamber 14 is provided on the right side and an egg case 15 and an accessory case 16 are provided vertically on the left side in the lowermost part of the refrigerator compartment 3 (upper part of the partition wall 10). Furthermore, a water storage tank 17 is provided on the left side of these. A chilled case 18 is provided in the chilled chamber 14 so that it can be taken in and out. The water storage tank 17 is for storing water to be supplied to the ice tray 8 a of the automatic ice making device 8.

  The ice making room 5, the small freezing room 6, and the freezing room 7 are all storage rooms in a freezing temperature zone (for example, −10 to −20 ° C.), and the vegetable room 4, the ice making room 5, and the small freezing room 6 The space is partitioned vertically by a heat insulating partition wall 19. A drawer-type heat insulating door 5a is provided on the front surface of the ice making chamber 5, and an ice storage container 20 is connected to the back surface of the heat insulating door 5a. Although not shown, a drawer-type heat insulating door connected to a storage container is also provided on the front surface of the small freezer compartment 6. A drawer-type heat insulating door 7 a to which a storage container 22 is connected is also provided on the front surface of the freezer compartment 7.

  The refrigerator main body 1 includes a refrigeration cooler 24 for cooling the refrigeration room 3 and the vegetable room 4 that are storage rooms in a refrigeration temperature zone, the ice making room 5 that is a storage room in a refrigeration temperature zone, and a small freezer. A refrigeration cycle including two coolers, a refrigeration cooler 25 for cooling the chamber 6 and the freezer compartment 7, is incorporated. The refrigeration cycle will be described later. A machine room 26 is provided on the back side of the lower end of the refrigerator main body 1, and a compressor 27 and a condenser that constitute a refrigeration cycle are disposed in the machine room 26, in order to cool them. A cooling fan, a defrosted water evaporating dish 28, and the like are disposed. A control device 29 in which a microcomputer or the like for controlling the whole is mounted is provided near the lower rear portion of the refrigerator body 1.

  A refrigeration cooler chamber 30 is provided behind the freezing chamber 7 in the refrigerator body 1. In the refrigeration cooler chamber 30, the refrigeration cooler 25, a defrosting heater (not shown) and the like are disposed at the lower portion, and the refrigeration blower fan 31 is disposed at the upper portion. Is arranged. A cold air outlet 30a is provided in the middle portion of the front surface of the refrigeration cooler chamber 30, and a return port 30b is provided in the lower end portion.

  In this configuration, when the refrigeration blower fan 31 is driven, the cold air generated by the refrigeration cooler 25 is supplied into the ice making chamber 5, the small freezer compartment 6, and the freezer compartment 7 from the cold air outlet 30a. Thereafter, circulation is performed such that the refrigerant is returned from the return port 30b into the refrigeration cooler chamber 30. Thereby, the ice making room 5, the small freezer room 6, and the freezer room 7 are cooled. A drainage basin 32 that receives defrost water when the refrigeration cooler 25 is defrosted is provided below the refrigeration cooler 25. The defrost water received by the drainage basin 32 is guided to the defrost water evaporating tray 28 provided in the machine chamber 26 outside the warehouse, and evaporates.

  And in the back part of the said refrigerator compartment 3 and the vegetable compartment 4 in the refrigerator main body 1, the said cooler 24 and the cool air produced | generated by this refrigerator for refrigerator 24 are the said refrigerator compartment 3 (and vegetable compartment 4). A cold air duct 34 for supplying the air inside, a refrigeration blower fan 35 for circulating the cold air, and the like are arranged as follows. That is, a refrigeration cooler chamber 36 that constitutes a part of the cold air duct 34 is provided behind the lowermost stage of the refrigeration chamber 3 in the refrigerator main body 1 (behind the chilled chamber 14). A refrigerating cooler 24 is disposed in the inside 36.

  A cold air supply duct 37 extending upward is provided above the refrigerating cooler chamber 36, and the upper end portion of the refrigerating cooler chamber 36 communicates with the lower end portion of the cold air supply duct 37. In this case, the cold air duct 34 is constituted by the refrigeration cooler chamber 36 and the cold air supply duct 37. The front wall 36 a of the refrigeration cooler chamber 36 bulges forward from the cold air supply duct 37. Further, a heat insulating material 38 having heat insulating properties is provided on the back side of the front wall 36a. In front of the cold air supply duct 37, a plurality of cold air supply ports 39 that open into the refrigerator compartment 3 are provided.

  A drainage basin 40 for receiving defrost water from the refrigeration cooler 24 is provided below the refrigeration cooler 24 in the lower part of the refrigeration cooler chamber 36. The defrosted water received by the drainage basin 40 is also led to the defrosting water evaporating dish 28 provided in the machine room 26 outside the cabinet, similarly to the defrosting water received by the drainage basin 32, It is supposed to evaporate. The left and right length dimensions and the front and rear depth dimensions of the drainage basin 40 are set larger than the left and right length dimensions and the front and rear depth dimensions of the refrigeration cooler 24, and defrosting dripping from the refrigeration cooler 24. It is configured to receive all water.

  The refrigeration blower fan 35 is disposed behind the vegetable compartment 4 below the drainage basin 40, and a blower duct 42 and a suction port 43 are provided. Among them, the air duct 42 communicates with the refrigeration cooler chamber 36 (cold air duct 34) so that the upper end of the air duct 42 circulates the drainage basin 40. The suction port 43 is open in the vegetable compartment 4. As shown in FIG. 5, communication ports 44 are formed at the left and right corners of the rear portion of the partition wall 10 that constitutes the bottom of the refrigerator compartment 3 (only the right communication port 44 is shown in FIG. 5). Show). The communication port 44 allows the refrigerator compartment 3 to communicate with the vegetable compartment 4 below it.

  In this configuration, when the refrigeration blower fan 35 is driven, the air in the vegetable compartment 4 is sucked into the refrigeration blower fan 35 side from the suction port 43 mainly as shown by the white arrow in FIG. The sucked air is blown out to the air duct 42 side. The air blown out to the air duct 42 side passes through the cold air duct 34 (the refrigeration cooler chamber 36 and the cold air supply duct 37) and is blown out into the refrigerating chamber 3 from the plurality of cold air supply ports 39. The air blown into the refrigerator compartment 3 is also supplied into the vegetable compartment 4 through the communication port 44, and finally circulated by being sucked into the refrigerator fan 35 for refrigerator. In this process, the air passing through the refrigerating cooler chamber 36 is cooled by the refrigerating cooler 24 to become cold air, and the cold air is supplied to the refrigerating chamber 3 and the vegetable chamber 4. 4 is cooled to a temperature in the refrigeration temperature zone.

  As shown in FIGS. 2 and 4, the cold air duct 34 is located on the front side of the refrigeration cooler chamber 36 on the right side when viewed from the front and behind the chilled chamber 14, and is a dedicated duct for mist. 45 is detachably provided. As shown in FIGS. 5 to 8, the mist exclusive duct 45 is formed by a front wall 36 a of the refrigeration cooler chamber 36 and a duct component member 46 attached to the front surface of the refrigeration cooler chamber 36. In addition, the duct component member 46 forming the mist dedicated duct 45 is detachable from the front wall 36a. In this case, the mist exclusive duct 45 is formed in a flat rectangular box shape that is long in the left-right direction along the front wall 36a and has a small depth dimension in the front-rear direction. And the main part of the electrostatic atomizer 48 which comprises the mist generator for generating mist is accommodated in this duct 45 for mist. Hereinafter, the electrostatic atomizer 48 will be described in detail.

  As shown in FIG. 9, the electrostatic atomizer 48 includes a mist generating unit 51 having a mist emitting unit 50 and a power supply device (transformer) 52 for applying a negative high voltage to the mist emitting unit 50. It is prepared for. The mist generating unit 51 includes a water supply unit 53 that supplies moisture to the mist discharge unit 50. The water supply portion 53 has a horizontal portion 53a extending in the left-right direction and a vertical portion 53b extending downward from the right end portion of the horizontal portion 53a. The water supply portion 53 has an inverted L shape as viewed from the front, and has an L shape. A water retaining material 55 is accommodated in the case 54 formed. Therefore, the water supply part 53 has the refracting part 53c between the horizontal part 53a and the vertical part 53b. The horizontal part 53 a and the vertical part 53 b in the water supply part 53 are arranged along the front wall 36 a so as to be parallel to the front wall 36 a of the refrigeration cooler chamber 36 in the cold air duct 34.

  The water-retaining material 55 is, for example, a felt-like material in which fibers are entangled, and is excellent in water absorption and water retention, and sucks up water (defrosted water) stored in a water storage container 56 (water storage part) described later by a capillary phenomenon. . The water retaining material 55 may be a continuous foam as long as water can be sucked up by capillary action. The horizontal portion 53a of the water supply portion 53 is arranged slightly to the right in the mist dedicated duct 45, and the lower end portion of the vertical portion 53b is the lower portion of the duct component member 46, as shown in FIG. A hole formed in the front step portion 36 b of 36 is inserted into the lower front portion in the refrigerator compartment 36 for refrigeration. The outer periphery of the water retaining material 55 is covered with a case 54. In the water retaining material 55, the horizontal portion 53a and the vertical portion 53b may be formed of separate members.

  A water storage container 56 (see FIG. 8) that constitutes a water storage section is provided in the front part of the lower part in the refrigerator room 36 for refrigeration. The water storage container 56 is in a position to receive the defrosted water from the refrigeration cooler 24, and is located between the refrigeration cooler 24 and the drainage basin 40 located below the chiller cooler 24 and below the water supply unit 53. By being positioned and attaching the front part to the lower part 36c of the front wall 36a of the refrigeration cooler chamber 36, it is provided in a cantilever state protruding rearward. In this case, the lower portion 36c to which the front portion of the water storage container 56 is attached is below the front wall 36a and bulges (projects) forward from the front wall 36a via the stepped portion 36b. When the front wall 36a is a first bulging portion, the lower portion 36c is a second bulging portion that protrudes further forward. The water storage container 56 is separated from the refrigeration cooler 24 and the inner box 2b forming the rear surface of the refrigeration cooler chamber 36 in a state of being attached to the lower portion 36c. The refrigeration cooler 24 is in contact with the inner box 2 b that forms the rear surface of the refrigeration cooler chamber 36.

  A lower end portion of the vertical portion 53 b in the water supply portion 53 passes through a hole formed in a lower portion of the duct component member 46 and a step portion 36 b in the front portion of the refrigeration cooler chamber 36, and extends upward into the water storage container 56. Has been inserted from. The water storage container 56 receives and stores defrost water dripped from the refrigeration cooler 24. As described above, the water retaining material 55 of the water supply unit 53 sucks up the water (defrosted water) stored in the water storage container 56 by capillary action and supplies it to the mist discharge unit 50.

  An overflow portion 56a that is set lower than the others is formed at the upper portion of the rear end portion of the water storage container 56. When the water stored in the water storage vessel 56 overflows, the overflow portion 56a It will overflow. The overflow portion 56a is located above the drainage basin 40 so that the water overflowing from the overflow portion 56a is received by the drainage basin 40 and discharged to the defrosted water evaporating dish 28 outside the apparatus. Become.

  A mist discharge unit 50 is provided in the horizontal portion 53 a of the water supply unit 53. The mist discharge part 50 is comprised by the several mist discharge | release pin 57 which each comprises a protrusion. A plurality of mist discharge pins 57 are arranged upward in the horizontal portion 53a, and four in this case are arranged in a horizontal line in the left-right direction and are spaced apart from each other, and are arranged on the lower side of the horizontal portion 53a. A plurality of, in this case, four in this case are arranged in a horizontal line in the left-right direction and are spaced apart from each other. Therefore, the mist discharge | release part 50 is comprised by the several mist discharge | release pin (projection) 57 which protrudes in a different direction (above and below). Moreover, the mist discharge | release part 50 is arrange | positioned so that the several mist discharge | release pin (projection part) 57 may extend in the up-and-down opposite direction between the horizontal parts 53a in the water supply part 53. The plurality of mist discharge pins (protrusions) 57 are arranged in two upper and lower stages. Each mist discharge pin 57 is arranged so as to be parallel to the front wall 36 a of the refrigeration cooler chamber 36 in the cold air duct 34. The mist discharge part 50 is provided in the lower rear part of the refrigerator compartment 3 and the position adjacent to the vegetable compartment 4, and is arrange | positioned behind the chilled chamber 14. FIG.

  Each mist release pin 57 is formed, for example, by mixing polyester fiber and carbon fiber as a conductive substance and twisting them into a pin shape (bar shape). have. Each mist release pin 57 carries platinum nanocolloid. The platinum nanocolloid can be supported, for example, by immersing the mist release pin 57 in a treatment liquid containing the platinum nanocolloid and baking it. Each mist discharge pin 57 passes through the case 54 in the water supply portion 53 and is in contact with the water retaining material 55 at the base end portion. At the left end portion of the horizontal portion 53a in the water supply portion 53, a power receiving pin 58 constituting a power receiving electrode is provided so as to protrude leftward. A base end portion of the power receiving pin 58 is in contact with the water retaining material 55 in the case 54.

  The power supply device 52 is provided in a fixed state so as to be positioned on the left side of the mist generating unit 51 in the mist dedicated duct 45. A power supply terminal 61 composed of a faston terminal to which a lead wire 60 is connected is provided at the right end of the power supply device 52, and the power reception pin 58 of the mist generating unit 51 is connected to the power supply terminal 61. Yes.

  As is well known, the power supply device 52 includes a rectifier circuit including a high-voltage transformer that converts a high-frequency power supply (AC power supply) into direct current, a booster circuit, and the like, and generates a negative high voltage (for example, −6 kV). The power is output to the power receiving pin 58 via the power supply terminal 61.

  As a result, a negative high voltage from the power supply device 52 is applied to each mist discharge pin 57 from the power receiving pin 58 via the moisture of the water retaining material 55, and each mist discharge pin 57 is negatively charged. Yes. In this case, the outer box 2a of the refrigerator main body 1 is grounded via a ground wire (not shown) or the like.

  In the electrostatic atomizer 48 configured as above, the water in the water storage container 56 is sucked up by the water retaining material 55 and supplied to each mist discharge pin 57, and the power supply device 52 is connected to each mist discharge pin 57. A negative high voltage from is applied. At this time, electric charges concentrate on the tip of each mist discharge pin 57, and energy exceeding the surface tension is given to the water contained in the tip. As a result, the water at the tip of each mist discharge pin 57 is split (Rayleigh split) and discharged from the tip into a fine mist (electrostatic atomization phenomenon). Here, the water particles released in the form of mist are negatively charged and contain hydroxy radicals generated by the energy.

  Accordingly, hydroxy radicals having a strong oxidizing action are released together with the mist from each mist releasing pin 57, and sterilization and deodorization are enabled by the action of the hydroxy radicals. In this case, the counter electrode corresponding to the negatively charged mist discharge pin 57 is not provided. Therefore, the discharge itself from the mist emitting pin 57 becomes very gentle, and no harmful gas (ozone or the ozone oxidizes nitrogen in the air without generating corona discharge between the discharge electrode and the counter electrode). Generation of nitrogen oxides, nitrous acid, nitric acid, etc. generated by the

  Here, the mist releasing pin 57 (mist releasing part 50) can be called a disinfecting component releasing means (also a deodorizing component releasing means) for releasing a disinfecting component (also a deodorizing component) called a hydroxy radical, The atomization device 48 can be referred to as a sterilization component generation means (deodorization component generation means).

  A mist cold air supply port 62 (see FIGS. 4 and 7) is provided in the front wall 36a of the refrigeration cooler chamber 36 that constitutes the rear wall of the mist dedicated duct 45. The mist cold air supply port 62 is disposed above the power supply device 52 at a position not facing the mist discharge pin 57 in the mist discharge section 50, in this case, on the left side of the mist discharge section 50. The mist cold air supply port 62 has a rear portion penetrating the heat insulating material 38 and communicating with the refrigeration cooler chamber 36 in the cold air duct 34, and a front portion communicating with the mist dedicated duct 45. Accordingly, a part of the cold air passing through the cold air duct 34 is supplied from the mist cold air supply port 62 into the mist exclusive duct 45 (see arrow A1 in FIG. 7). The cold air supplied from the mist cold air supply port 62 into the mist dedicated duct 45 is convected in the mist dedicated duct 45.

  Above the mist cold air supply port 62, a mist duct 63 for the refrigeration chamber (see FIGS. 4 and 7) is provided, which is positioned on the back side of the front wall 36 a of the refrigeration cooler chamber 36 and extends upward. ing. The cold room mist duct 63 has a lower end opened in the mist dedicated duct 45 to be a cold room mist outlet 63a, and an upper end communicated with the cold air supply duct 37 in the cold air duct 34. . Accordingly, a part of the mist generated in the mist dedicated duct 45 passes from the refrigeration room mist outlet 63a through the refrigeration room mist duct 63 and the cold air supply duct 37 and into the cold room 3 from the cold air supply port 39. (Refer to arrow B1 in FIGS. 4 and 7).

  A mist chamber mist outlet 65 (see FIGS. 4 and 7) is positioned above the mist cold air supply port 62 at the front surface (a position different from the upper surface) of the duct component member 46 in the mist dedicated duct 45. A portion of the mist is supplied from the chilled chamber mist outlet 65 into the chilled chamber 14 (see arrow B2 in FIGS. 4 and 7). Further, an egg case mist outlet 66 (see FIG. 4) is provided on the front side of the duct component member 46 on the left side of the chilled chamber mist outlet 65, and the egg case mist outlet is provided. A part of the mist is also supplied from 66 into the egg case 15 (see arrow B3 in FIG. 4).

  Further, as shown in FIG. 5, a vegetable room mist outlet 67 is provided at the lower right side of the mist dedicated duct 45. The vegetable room mist outlet 67 communicates with the communication port 44, and a part of the mist in the mist dedicated duct 45 enters the vegetable room 4 through the vegetable room mist outlet 67 and the communication port 44. Are also being supplied. In this case, the distance L1 between the mist cold air supply port 62 for blowing cold air into the mist dedicated duct 45 and the vegetable room mist air outlet 67 is equal to the mist cold air supply port 62 and the chilled room mist air outlet 65. Is set to be larger than the distance L2.

  A chilled chamber cold air supply port 68 (see FIGS. 4, 6, and 8) is provided above the mist exclusive duct 45 so as to be positioned above the mist discharge section 50. As shown in FIG. 8, the cold air supply port 68 for the chilled chamber has a rear portion that penetrates the heat insulating material 38 and communicates with the refrigeration cooler chamber 36, and a front portion that penetrates the mist dedicated duct 45 and passes through the chilled chamber. 14 is communicated. Accordingly, a part of the cold air in the refrigeration cooler chamber 36 is directly supplied to the chilled chamber 14 through the chilled chamber cold air supply port 68 (see arrow A2 in FIGS. 6 and 8). Further, the heat insulating material 38 also serves as an insulating means between the refrigeration cooler 24 and the mist discharge unit 50.

  6 and 8, a heater 70 for heating is disposed in the vicinity of the refrigeration cooler 24, in this case, on the back side, on the heat insulating material 2c side of the inner box 2b. The heater 70 is energized and generates heat when the refrigeration cooler 24 is defrosted, and heats the refrigeration cooler 24 and its surroundings.

  FIG. 10 shows a schematic configuration of the refrigeration cycle 71 in the refrigerator of the present embodiment. In the refrigeration cycle 71, the discharge portion 27 a of the compressor 27 is connected via a condenser 72 to a switching valve that switches a refrigerant flow path, in this case, an inlet portion 73 a of a three-way valve 73. Then, one outlet 73b of the three-way valve 73 is connected to the suction portion 27b of the compressor 27 via the first capillary tube 74, which is a freezing restrictor, the freezing cooler 25, and the accumulator 75. The other outlet 73c of the three-way valve 73 is connected to the suction portion 27b of the compressor 27 via the second capillary tube 76, which is a refrigeration restrictor, and the refrigeration cooler 24.

  Here, when cooling the storage room (the ice making room 5, the small freezing room 6, and the freezing room 7) in the freezing temperature zone, the compressor 27 is in a state in which one outlet 73b of the three-way valve 73 is opened. Driven. Then, the refrigerant discharged from the discharge portion 27a of the compressor 27 passes through the condenser 72, the one outlet portion 73b of the three-way valve 73, the first capillary tube 74, the refrigeration cooler 25, and the accumulator 75 in order. It circulates so that it may return to the compressor 27 from the suction part 27b of the machine 27. In this process, the air around the refrigeration cooler 25 is cooled, and the cold air is circulated by the refrigeration blower fan 31 as described above. The chamber 6 and the freezing chamber 7) are cooled.

  Moreover, when cooling the storage room (refrigeration room 3, vegetable room 4, chilled room 14) of the refrigeration temperature zone, the compressor 27 is driven with the other outlet 73c of the three-way valve 73 opened. The Then, the refrigerant discharged from the discharge part 27a of the compressor 27 passes through the condenser 72, the other outlet part 73c of the three-way valve 73, the second capillary tube 76, and the refrigeration cooler 24 in order, It circulates so that it may return to the compressor 27 from the suction part 27b. In this process, the air around the refrigeration cooler 24 is cooled, and the chilled air is circulated by the refrigeration blower fan 35 as described above, so that the storage room (the refrigeration room 3, the vegetable room) in the refrigeration temperature zone. 4. The chilled chamber 14) is cooled.

  When the refrigeration cooler 25 is defrosted, the defrost heater (not shown) is energized while the operation of the compressor 27 is stopped, and the refrigeration cooler 25 is heated by the defrost heater. Thereby, the defrosting of the refrigeration cooler 25 is performed. As described above, the defrosted water generated by this defrosting is received by the drainage basin 32 and then guided to the defrosted water evaporating dish 28 to evaporate.

  When the refrigeration cooler 25 is defrosted, the refrigeration cooler 24 is also defrosted at the same time. The defrosting of the refrigeration cooler 24 is basically performed by driving the refrigeration blower fan 35 to convert the air in the refrigeration temperature zone storage room (refrigeration room 3, vegetable room 4, chilled room 14) into the cold air duct 34. Is done by circulating through. By circulating the air in the storage room in the refrigeration temperature zone through the cold air duct 34, the temperature of the refrigeration cooler 24 becomes a positive temperature, thereby increasing the temperature of the refrigeration cooler 24 and performing defrosting. . A part of the defrost water dripped from the refrigeration cooler 24 during the defrosting of the refrigeration cooler 24 is received and stored in the water storage container 56 of the electrostatic atomizer 48, and the rest is as described above. After being received by the drain 40, it is guided to the defrosted water evaporating tray 28 and evaporates. In the case of defrosting the refrigeration cooler 24, the defrosting can be performed more reliably by the heat of the heater 70 by controlling the energization of the heater 70 provided in the vicinity of the refrigeration cooler 24. Is possible.

  The defrosting of the refrigeration cooler 24 is performed not only when the refrigeration cooler 25 described above is defrosted but also when the refrigeration cooler 25 cools the storage room in the freezing temperature zone. At this time, the compressor 27 is driven, but the other outlet 73c of the three-way valve 73 is closed, and the refrigeration blower fan 35 is installed in a state where no refrigerant flows into the refrigeration cooler 24. This is performed by driving and controlling the energization of the heater 70.

  Next, the operation of the above configuration will be described. As described above, when the refrigerator compartment 3 and the vegetable compartment 4 are cooled, the cold air cooled by the refrigerator refrigerator 24 is mainly indicated by white arrows in FIG. As shown in the figure, it passes through the cold air supply duct 37 and is supplied from the plurality of cold air supply ports 39 into the refrigerating chamber 3, and a part thereof is directly supplied from the chilled chamber cold air supply port 68 into the chilled chamber 14 (see FIG. 6, see arrow A2 in FIG. The cold air supplied to the refrigerated room 3 and the chilled room 14 contributes to the cooling of stored items such as food, and then merges and is also supplied from the communication port 44 to the vegetable room 4. The cold air supplied into the vegetable compartment 4 contributes to the cooling of stored items such as vegetables, and is then sucked into the refrigeration fan 35 side from the suction port 43 and cooled again by the refrigeration cooler 24. repeat.

  Further, when the refrigerator compartment 3 and the vegetable compartment 4 are cooled, a part of the cold air in the refrigerator refrigerator compartment 36 is supplied from the mist cold air supply port 62 through the mist exclusive duct 45 as shown by an arrow A1 in FIG. Supplied in. The cold air supplied into the mist dedicated duct 45 collides with the inner surface of the duct component member 46 and convects and diffuses in the mist dedicated duct 45. At this time, when the electrostatic atomizer 48 is driven, fine mist containing hydroxy radicals is released from each of the plurality of mist release pins 57 in the mist generation unit 51 as described above. As shown by an arrow B1 in FIG. 7, a part of the mist discharged from the mist discharge pin 57 rides on the convection cold air, from the cold room mist outlet 63a to the cold room mist duct 63, the cold air supply duct. 37, and is supplied from the cold air supply port 39 into the refrigerator compartment 3.

  A part of the mist discharged from the mist discharge pin 57 is supplied from the chilled chamber mist outlet 65 into the chilled chamber 14 as shown by an arrow B2 in FIG. 4 and FIG. As shown by the arrow B3, it is also supplied into the egg case 15 from the mist outlet 66 for egg case. Furthermore, a part of the mist discharged from the mist discharge pin 57 is also supplied into the vegetable compartment 4 from the lower right vegetable room mist outlet 67 through the communication port 44.

  Therefore, in this embodiment, the mist generated in the mist dedicated duct 45 can be supplied to a plurality of supply destinations such as the refrigeration chamber 3, the chilled chamber 14, the egg case 15, and the vegetable chamber 4. In addition to expecting the effects of sterilization and deodorization at the supply destination, it can also be expected to maintain moisture and freshness of vegetables.

According to the first embodiment described above, the following operational effects can be obtained.
The water used for the mist generation in the electrostatic atomizer 48 constituting the mist generator can use the defrosted water of the refrigeration cooler 24 received by the water storage container 56, so that the water supply to the water storage container 56 is automatically supplied. This makes it possible to dispense with water by the user with respect to the electrostatic atomizer 48.

  The refrigerator-freezer of this embodiment employs a two-evaporation refrigeration cycle that includes two coolers, a refrigeration cooler 24 and a refrigeration cooler 25. Here, the ambient temperature of the refrigeration refrigerator 25 of the refrigerator / freezer that employs the two-evaporation refrigeration cycle as in this embodiment and the ambient temperature of the refrigerator of the one-evaporator refrigerator / freezer are excluded during defrosting. Although it becomes a positive temperature by heating with a frost heater, it is always at a temperature of -20 ° C or lower except during defrosting. Assuming that the water storage containers are installed on the cooler side, even if the defrost water is received and stored in the water storage container during defrosting of the cooler, the water in the water storage container is easily frozen and hardly melts. For this reason, there is a problem that water cannot be stably supplied to the mist discharging unit 50.

  In this regard, in the present embodiment, in a two-evaporation type refrigerator-freezer provided with two coolers, a refrigeration cooler 24 and a refrigeration cooler 25, a water storage container 56 is provided on the refrigeration cooler 24 side, It was set as the structure installed in the position (for example, the downward direction of the refrigerator 24 for refrigeration) which receives this defrost water. In the two-evaporation type refrigerator-freezer, the ambient temperature of the refrigeration cooler 24 is a negative temperature during the cooling operation of the refrigeration cooler 24, but is considerably higher than the temperature of the refrigeration cooler 25, During the cooling operation of the refrigeration cooler 25 (during cooling of the storage room in the refrigeration temperature zone) and when the operation of the compressor 27 is stopped, the temperature of the refrigeration chamber 3 is close to + 3 ° C. due to the circulation of air by the refrigeration fan 35 It rises to near. For this reason, in particular, the water in the water storage container 56 installed below the refrigeration cooler 24 is difficult to freeze, and even if it freezes, it is easy to melt, so that the supply of water to the mist discharge unit 50 is stable. Can be performed.

  Moreover, in the present embodiment, since the heater 70 is provided in the vicinity of the refrigeration cooler 24, it is possible to more reliably prevent icing of water in the water storage container 56 by controlling the energization of the heater 70. It becomes possible, and it becomes possible to supply water more stably with respect to the mist discharge | release part 50. FIG.

  In this case, a heat conduction member made of, for example, an aluminum sheet is attached to the inner surface side (the refrigeration cooler 24 side) of the inner box 2b in the vicinity of the heater 70, and the lower end portion of the heat conduction member is stored in water storage. The water storage container 56 may be heated by the heat of the heater 70 through the heat conducting member. In the case of such a configuration, it is possible to more reliably prevent the water in the water storage container 56 from freezing.

  The mist discharge part 50 of the electrostatic atomizer 48 which comprises a mist generator was comprised by the several mist discharge | release pin (projection part) 57 which protrudes in a different direction. With this configuration, unlike the case where the protruding direction of the projection for generating mist is only one direction, the supply direction of mist can be a plurality of directions, and the supply range of mist can be widened.

  The mist discharge part 50 is configured such that the mist discharge pin (projection) 57 extends in the opposite direction up and down with the horizontal part 53a of the water supply part 53 in between, so that the mist can be discharged in the opposite direction above and below. The mist supply range can be widened. Further, the horizontal portion 53a of the water supply portion 53 and each mist discharge pin 57 are arranged along the front wall 36a so as to be parallel to the front wall 36a of the refrigeration cooler chamber 36 in the cold air duct 34. It is possible to reduce the thickness in the front-rear direction. By arranging the mist discharge pins (protrusions) 57 in two upper and lower stages, it is possible to reduce the size.

  The mist discharge part 50 has a configuration in which a plurality of the mist discharge pins (projections) 57 are arranged in a line, so that the amount of mist discharge can be increased and the supply range of mist can be further widened. In addition, the thickness can be reduced.

  The water supply part 53 has a refracting part 53c. A water storage container 56 for storing water is provided below the refracting part 53c, and water stored in the water storage container 56 can be supplied to the refracting part 53c. The configuration. Thereby, the water of the water storage container 56 can be supplied to the mist discharge | release pin 57 via the bending part 53c. The power supply device 52 is disposed on the opposite side of the refracting portion 53c with the mist emitting portion 50 in between. Thereby, the power supply device 52 can be further separated from the water storage container 56.

In addition, by arranging the power supply device 52 and the mist generating unit 51 along the front wall 36a so as to be parallel to the front wall 36a of the refrigeration cooler chamber 36 in the cold air duct 34, electrostatic atomization is achieved. The device 48 can be thinned in the depth direction.
A mist discharge pin (projection) 57 in the mist discharge portion 50 of the electrostatic atomizer 48 is arranged along the cold air duct 34. Thereby, it becomes possible to suppress the depth dimension of the electrostatic atomizer 48 in the front-rear direction, and the thickness can be reduced. Accordingly, it is possible to suppress a decrease in the internal volume.

  A mist cold air supply port 62 for supplying cold air into the mist dedicated duct 45 is provided at the front of the cold air duct 34, and the mist discharge portion 50 of the electrostatic atomizer 48 is connected to the front of the cold air duct 34. Arranged. Accordingly, it is possible to fly the mist discharged from the mist discharge unit 50 far using the cooling air supplied from the mist cold air supply port 62 into the mist dedicated duct 45.

  Since the mist cold air supply port 62 and the mist discharge portion 50 (mist discharge pin 57) are arranged at positions shifted left and right so as to be different from the opposed positions, the mist cold air supply port 62 and the mist dedicated duct are disposed. The cooling air supplied into 45 does not directly hit the mist discharge part 50 (mist discharge pin 57). This makes it possible to prevent the mist discharge pin 57 from directly receiving the cooling air from the mist cold air supply port 62 and drying.

  The refrigerator main body 1 is provided with a dedicated mist duct 45 that accommodates the electrostatic atomizer 48 having the mist discharge unit 50, and the supply destination of the mist generated by the mist discharge unit 50 is different to the dedicated mist duct 45. Several mist outlets were installed. More specifically, the plurality of mist outlets are a mist outlet 63a for a refrigerator compartment, a mist outlet 65 for a chilled room, a mist outlet 66 for an egg case, and a mist outlet 67 for a vegetable compartment. Thus, the mist generated in the mist dedicated duct 45 can be supplied to the four supply destinations of the refrigerator compartment 3, the chilled compartment 14, the egg case 15, and the vegetable compartment 4, thereby widening the supply range of the mist. And the mist effect range can be expanded. Among the mist supply destinations, the chilled chamber 14, the egg case 15, and the vegetable chamber 4 have a chilled case 18, an egg case 15, and a vegetable case (lower case 11, upper case 12), respectively. It can be supplied satisfactorily.

  In this case, the plurality of mist outlets (the mist outlet 63a for the refrigerator compartment, the mist outlet 65 for the chilled room, the mist outlet 66 for the egg case, and the mist outlet 67 for the vegetable compartment) are the mist discharge part 50. Therefore, the mist discharged from the mist discharge section 50 can be satisfactorily supplied to each mist outlet.

  The mist generating unit 51 has a mist discharge pin (projection) 57, and the plurality of mist outlets (the mist outlet 63a for the refrigerator compartment, the mist outlet 65 for the chilled chamber, the egg), and the egg Since the mist outlet 66 for the case and the mist outlet 67 for the vegetable compartment are arranged at positions different from the positions facing the mist discharge pins 57, the mist outlet ducts should be used by any chance. Even if a finger or a foreign object is inserted into 45, it can be prevented that they touch the mist discharge pin 57 directly, and safety can be ensured.

Further, since the duct component member 46 forming the mist dedicated duct 45 is detachable, maintenance of the mist generating unit 51 and the like can be easily performed.
(Second Embodiment)
FIG. 11 shows a second embodiment. In this second embodiment, instead of the heater 70 provided in the vicinity of the refrigeration cooler 24, a heater 80 is provided in the vicinity of the water storage container 56, in this case, on the bottom surface of the drainage basin 40 existing below the water storage container 56. I am doing so. The heater 80 is disposed at a position facing the lower surface of the water storage container 56.
Also in this embodiment, by controlling the energization of the heater 80, it is possible to more reliably prevent water in the water storage container 56 from icing, and supply of water to the mist discharge unit 50 can be stabilized. Can be performed.

(Third embodiment)
FIG. 12 shows a third embodiment. In the third embodiment, the heater 81 is provided on the bottom surface of the bottom of the water storage container 56. Also in this embodiment, by controlling the energization of the heater 81, it becomes possible to prevent the water in the water storage container 56 from icing more reliably, and the water supply to the mist discharge unit 50 can be stabilized. Can be performed.

(Fourth embodiment)
FIG. 13 shows a fourth embodiment. In this 4th Embodiment, the structure of the mist generation | occurrence | production unit 86 in the electrostatic atomizer 85 which comprises a mist generator differs from 1st Embodiment.
The mist generating unit 86 includes a mist discharge unit 87 and a water supply unit 88 that supplies moisture to the mist discharge unit 87. The water supply unit 88 includes a circular portion 88a that is circular when viewed from the front, and a vertical portion 88b that extends downward from the circular portion 88a, and a water retaining material 90 similar to that of the first embodiment is provided in the case 89. Contained and configured. The lower end portion of the vertical portion 88b passes through the lower portion of the duct component member 46 and the step portion 36b (see FIG. 8) at the front portion of the refrigeration cooler chamber 36, and is stored in the refrigeration cooler chamber 36. The container 56 is inserted from above. The circular portion 88a and the vertical portion 88b in the water supply portion 88 are arranged along the front wall 36a so as to be parallel to the front wall 36a of the refrigeration cooler chamber 36 in the cold air duct 34.

  The mist discharge part 87 is comprised by the several mist discharge | release pin 57 which comprises a protrusion, respectively. The mist discharge pins 57 are provided radially on the outer peripheral portion of the circular portion 88a. Therefore, the mist discharge | emission part 87 is comprised by the several mist discharge | release pin 57 (protrusion part) which protrudes toward a different direction. The base end portion of each mist discharge pin 57 passes through the case 89 and is in contact with the water retaining material 90. Each mist discharge pin 57 is also arranged along the front wall 36 a so as to be parallel to the front wall 36 a of the refrigeration cooler chamber 36 in the cold air duct 34.

  A protrusion 88c that protrudes to the left is provided on the left side of the circular part 88a in the water supply part 88, and the power receiving pin 58 is provided in a state of protruding to the left in the protrusion 88c. The power reception pin 58 is connected to the power supply terminal 61 on the power supply device 52 side.

  In this configuration, the water stored in the water storage container 56 is sucked up by the water retaining material 90 and supplied to each mist discharge pin 57. Further, a negative high voltage from the power supply device 52 is applied to each mist discharge pin 57 from the power receiving pin 58 through the moisture of the water retaining material 90, and based on this, a fine mist is discharged from each mist discharge pin 57. Is done. The mist discharged from each mist discharge pin 57 is a plurality of mist outlets (refrigeration room mist outlet 63a, chilled room mist outlet 65, egg case mist outlet 66, as in the first embodiment. It is supplied from the vegetable room mist outlet 67) to a plurality of supply destinations such as the refrigerator room 3, the chilled room 14, the egg case 15, and the vegetable room 4.

  In such 4th Embodiment, since the mist discharge | emission pin 57 is arrange | positioned radially, there exists an advantage which can discharge | release mist further in many directions rather than the case of 1st Embodiment.

(Other embodiments)
The mist generating device is not limited to an electrostatic atomizing device. For example, an ultrasonic atomizing device that atomizes water stored in a water storage unit by ultrasonic vibration of an ultrasonic vibrator to release mist. May be used.

  As described above, according to the refrigerator of the present embodiment, in the refrigerator including the refrigeration cooler and the refrigeration cooler, the water storage part of the mist generator is placed at a position to receive the defrost water of the refrigeration cooler. It was set as the structure to install. With this configuration, water that is provided with a mist generating device and is required to generate mist with the mist generating device can be used by receiving the defrost water of the refrigeration cooler in the water storage container. It is possible to eliminate the need for the user to supply water to the generator. In particular, the water in the water storage container installed below the refrigeration cooler is difficult to freeze, and even if frozen, it is easy to melt, so that water can be stably supplied to the mist generator.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  In the drawings, 1 is a refrigerator body, 3 is a refrigeration room (a storage room in a refrigeration temperature zone), 4 is a vegetable room (a storage room in a refrigeration temperature zone), 5 is an ice making room (a storage room in a freezing temperature zone), and 6 is a small Freezer room (freezer temperature zone storage room), 7 freezer room (freezer temperature zone storage room), 14 chilled room (refrigerated temperature zone storage room), 24 refrigeration cooler, 25 freezer cooler , 29 is a control device, 31 is a refrigeration fan, 34 is a cold air duct, 35 is a refrigeration fan, 45 is a mist dedicated duct, 48 is an electrostatic atomizer (mist generator), and 50 is a mist discharge unit. , 51 is a mist generating unit, 52 is a power supply device, 53 is a water supply unit, 55 is a water retention material, 56 is a water storage container (water storage unit), 57 is a mist discharge pin, 62 is a cold air supply port for mist, and 63 is for a refrigerator room Mist duct, 63a is refrigeration room mist outlet, 65 is chilled room mistake Outlet, 66 mist outlet for egg case, 67 mist outlet for vegetable compartment, 70 heater, 80 heater, 81 heater, 85 electrostatic atomizer (mist generator), 86 mist generated A unit, 87 is a mist discharge section, and 88 is a water supply section.

Claims (4)

A refrigerator body having a freezer temperature storage room and a refrigeration temperature storage room;
A refrigeration cooler for cooling the storage room of the refrigeration temperature zone and a refrigeration cooler for cooling the storage room of the refrigeration temperature zone, each provided in the refrigerator main body,
A mist generator having a water reservoir, and misting the water in the water reservoir and supplying the mist to a storage room in the refrigerated temperature zone,
The refrigerator, wherein the water storage part of the mist generating device is installed at a position for receiving defrost water of the refrigeration cooler.   The refrigerator according to claim 1, wherein a heater is provided in the vicinity of the refrigeration cooler.   The refrigerator according to claim 1, wherein a heater is provided in the vicinity of the water storage section.   The refrigerator according to claim 1, wherein a heater is provided in the water storage section.

Images