JP6100209B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator having a water storage section and provided with mist discharge means for discharging the water in the water storage section into a mist.

  In recent years, in refrigerators for home use, in order to keep the storage room hygienic and to maintain the freshness of food, for example, fine mist is applied to the partition wall part that divides the refrigerator compartment and the vegetable compartment vertically. It is considered to provide a mist generating device that generates (see, for example, Patent Document 1). The mist generating device includes a water storage case provided so as to be detachable by a user, and is configured to mist and discharge water stored in the water storage case by an electrostatic atomization method or an ultrasonic method. Yes.

  However, in the thing of the said patent document 1, in order to operate a mist generator continuously, there existed a malfunction that the user had to perform the regular water supply operation | work with respect to a water storage case. Moreover, since the mist generating device (water storage case) is disposed at a position that can be seen by the user, there is a problem that the appearance is not good. Therefore, as another example, Patent Document 2 discloses a refrigerator in which water is automatically supplied to a mist generator using defrost water generated from a cooler.

  In the refrigerator of Patent Document 2, a cold air circulation duct is provided on the back side of the refrigeration room and the vegetable room below the refrigeration room, and defrost water is placed in the lower part of the refrigeration cooler installed above the duct. A drain pan for storage is provided, an ultrasonic atomizing unit is provided in the lower part of the duct (on the back side of the vegetable compartment), and defrosted water from the drain pan is supplied to the water tank of the ultrasonic atomizing unit through a water supply pipe. It is configured to supply water. Thereby, it becomes possible to make the water supply operation | work by the user unnecessary with respect to the water tank of an ultrasonic atomization unit.

JP 2006-57999 A JP 2006-145080 A

  However, the configuration of Patent Document 2 also has the following drawbacks. That is, in the refrigerator of Patent Document 2, the cold air generated by the cooler is supplied from the upper part of the duct to the refrigerator room by driving the blower fan arranged at the upper part of the refrigerator for refrigeration, and further supplied to the vegetable room. Then, after returning to the lower part of the duct, after passing through the ultrasonic atomizing unit portion, circulation is performed to return to the cooler portion.

  At this time, the mist generated in the ultrasonic atomizing unit is supplied to the refrigeration room and the vegetable room together with the circulation of the cold air. Therefore, a situation occurs in which most of the generated mist is condensed (aggregated) at a low temperature when passing through the cooler and adheres to the cooler. For this reason, there was a problem that a sufficient amount of mist commensurate with the amount generated in the ultrasonic atomizing unit could not be supplied to the refrigerator compartment and the vegetable compartment.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a mist discharge means in a refrigerator body, and can eliminate the need for a user's water supply operation with respect to the mist discharge means. It is in providing the refrigerator which can supply the mist generated by the discharge | release means to a storage chamber effectively.

In order to achieve the above object, the refrigerator of the present invention includes a refrigerator body having a refrigerator room and a vegetable room, both of which are in a refrigeration temperature zone, and a cooler provided in the refrigerator body for cooling the refrigerator room and the vegetable room. , a blower fan for circulating and supplying cool air generated by the cooler has a sucking intake duct air from the refrigerating chamber and a vegetable compartment in the refrigerating chamber and vegetable chamber, mist release to release water and mist The mist releasing means comprises an electrostatic atomizer that discharges fine mist containing hydroxy radicals, and the supply of the refrigerant to the cooler is stopped, and the temperature of the refrigerator room or vegetable room is reduced. the increase is expected control state, which both generates the mist by the mist emitting means, the vegetable compartment of the mist without passing the cooler by rotating the blower fan Supply and is supplied to the refrigerating chamber a portion of the remaining from the suction duct, characterized in place to retain the freshness of cold warehouse room and vegetable room reservoir.

  In the present invention, the mist can be supplied into the storage chamber by the mist discharging means for mist-generating and discharging water, so that the storage chamber can be sterilized and deodorized, and the freshness of the stored product can be maintained. At this time, since the defrost water from the cooler is automatically supplied to the water storage part of the mist discharging means, the user's water supply operation to the mist discharging means can be made unnecessary.

  The air generated by driving the blower fan is cooled through the cooler part, and the cold air is supplied into the storage chamber and then returned to the cooler part. Is provided on the downstream side of the cooler in the cool air circulation path, so that the mist generated by the mist discharge means can be supplied to the storage chamber without passing through the cooler. Can be prevented from condensing (aggregating) and adhering to the cooler.

  According to the refrigerator of the present invention, the refrigerator main body is provided with the mist discharge means, and the water storage part of the mist discharge means is disposed below the cooler to store defrost water from the cooler. Since the mist discharging means is provided on the downstream side of the cooler in the cool air circulation path, the user does not need to supply water to the mist discharging means. However, the mist generated by the mist discharge means can be effectively supplied to the storage chamber.

1 shows an embodiment of the present invention and is a schematic longitudinal right side view of a refrigerator body. Expanded vertical right side view of electrostatic atomizer Schematic front view of electrostatic atomizer FIG. 2 equivalent view showing another embodiment Schematic longitudinal right side of the upper half of the refrigerator body showing another different embodiment

  An embodiment of the present invention will be described below with reference to FIGS. First, FIG. 1 schematically shows a configuration of a main body 1 of a refrigerator according to the present embodiment. The refrigerator main body 1 is configured by providing a plurality of storage chambers in a vertically long rectangular box-shaped heat insulating box 2 having an open front surface. Specifically, in the heat insulation box 2, a refrigeration room 3, a vegetable room 4, an ice making room 5, and a freezing room 6 are provided in order from the top. Although not shown, the portion of the heat insulation box 2 where the ice making chamber 5 is provided is partitioned into two chambers on the left and right, the ice making chamber 5 is provided on the left side, and the second freezing chamber (switching chamber) is on the right side. Is provided. A known automatic ice making device 7 is provided in the ice making chamber 5.

  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 8. A hinged heat insulating door 9 is provided on the front face of the refrigerator compartment 3, and a drawer heat insulating door 10 is provided on the front face of the vegetable compartment 4. A storage container 11 is connected to the back surface of the heat insulating door 10. The inside of the refrigerator compartment 3 is divided into a plurality of stages in the vertical direction by a shelf plate 12 (only a part of which is shown), and a chilled chamber 13 is provided at the lowest part (upper part of the partition wall 8). An interior lamp 14 is provided on the ceiling in the refrigerator compartment 3.

  The ice making room 5 and the freezing room 6 (and the second freezing room) are both storage rooms in a freezing temperature zone (for example, −10 to −20 ° C.), and the vegetable room 4 and the ice making room 5 (and the second freezing room). Between the two freezer compartments) is partitioned vertically by a heat insulating partition wall 15. A drawer-type heat insulating door 16 is provided on the front surface of the ice making chamber 5, and an ice storage container 17 is connected to the rear surface of the heat insulating door 16. A drawer-type heat insulating door 18 connected to a storage container 19 is also provided on the front surface of the freezer compartment 6.

  Although not shown in detail in the refrigerator main body 1 as a whole, the refrigerator 20 for cooling the refrigerator compartment 3 and the vegetable compartment 4, and the ice making chamber 5 and the freezer compartment 6 for cooling the refrigerator compartment 1 are cooled. A refrigeration cycle including two coolers with a freezer cooler 21 is incorporated. A machine room 22 is provided on the back side of the lower end of the refrigerator body 1, and although not shown in detail, a compressor 23 and a condenser constituting a refrigeration cycle are disposed in the machine room 22. A cooling fan, a defrosted water evaporating dish 24, and the like are disposed for cooling them. A control device 25 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 freezer compartment cooler chamber 26 is provided on the back wall portion of the freezer compartment 6 in the refrigerator body 1. In the freezer compartment 26, the freezer compartment cooler 21, a defrost heater (not shown) and the like are disposed at the lower portion, and the freezer blower is disposed at the upper portion. A fan 27 is provided. A cold air outlet 26a is provided in the middle of the front surface of the freezer compartment cooler chamber 26, and a return port 26b is provided at the lower end.

  Thus, when the refrigeration blower fan 27 is driven, the cold air generated by the freezer cooler 21 is supplied from the cold air outlet 26a into the ice making chamber 5 and the freezer compartment 6 and then returned. Circulation is performed such that the refrigerant is returned into the freezer cooler chamber 26 through the opening 26b. A water receiving portion 28 that receives defrost water is provided below the freezer cooler 21, and the defrost water received by the water receiving portion 28 is the defrost water in the machine chamber 22. It is guided to the evaporating dish 24 and evaporates.

  And in the back wall part of the refrigerator main body 1, it is for supplying the cooler 20 for the said refrigerator compartment, and the cold air | gas produced | generated by this refrigerator for refrigerator compartment 20 in the said refrigerator compartment 3 (and vegetable compartment 4). The blowout duct 29, the blower fan 30 for circulating the cold air, and the like are arranged as follows. That is, the refrigerator main body 1 is provided with a refrigerator room 31 for the refrigerator compartment located behind the lowermost chilled chamber 13 of the refrigerator compartment 3. The refrigerator 20 for refrigerator compartments is arrange | positioned.

  The front wall portion 31a (the rear wall portion of the chilled chamber 13) of the refrigerator room 31 for refrigeration chamber has heat insulation. The upper end portion of the refrigerator room cooler chamber 31 is connected to the lower end portion of the blowout duct 29 provided so as to extend upward with a certain width through the back wall portion of the refrigerator compartment 3. The outlet duct 29 is provided with a plurality of outlets 29 a that open in the refrigerator compartment 3.

  Further, a water receiving portion 32 for receiving defrosted water from the refrigerator 20 for the refrigerating room is provided at the bottom of the refrigerator room 31 for the refrigerating room, located below the cooler 20 for the refrigerating room. Yes. As will be described later, the water receiving section 32 is also used as a water storage section of the electrostatic atomizer. At this time, the back wall portion in the heat insulating box 2 is provided with a convex wall portion 33 which is located behind the partition wall 8 and has a beam shape extending horizontally and convex forward. The portion 32 is provided on the upper surface portion of the convex wall portion 33. The convex wall portion 33 is filled with a heat insulating material (insulating material).

  A blower fan 30 is disposed behind the vegetable compartment 4, and a blower duct 34 and a suction duct 35 are provided. Among them, the air duct 34 is located on the back side of the vegetable compartment 4 and communicates with the front side of the lower end portion of the refrigerator room 31 for the refrigerator compartment so that the upper end portion bypasses the convex wall portion 33 (water receiving portion 32). As described above, it is provided to extend in the vertical direction with a width equivalent to that of the blowout duct 29.

  On the front side of the lower end of the air duct 34, a bell mouth 34a is provided at the central portion in the left-right direction, and the air fan 30 is provided so that the air blowing blades are located in the bell mouth 34a. . In this case, the blower fan 30 is composed of a propeller fan capable of forward and reverse rotation, and is configured to suck air from the front and discharge backward by forward rotation, and suck air from the rear and discharge forward by reverse rotation. Has been. As will be described later, the blower fan 30 is controlled by the control device 25.

  The air duct 34 extends substantially straight upward as viewed from the side, and then the upper end of the air duct 34 is bent by a certain amount and connected to the front surface of the lower end of the refrigerator room 31 for the refrigerator compartment. In the present embodiment, as will be described in detail later, an electrostatic atomizer 36 serving as a mist discharging means is provided in the air duct 34. Further, a suction duct 35 is provided on the front side of the air duct 34 so as to overlap with the front and rear.

  This suction duct 35 is also provided with a width equal to that of the blowout duct 29 and extending slightly below the blower fan 30 from the ceiling of the vegetable compartment 4. At this time, the upper end portion of the suction duct 35 communicates with a suction port 37 formed in a horizontally long shape on the back side of the bottom of the refrigerator compartment 3 (chilled chamber 13). In addition, an opening 35 a is provided at the bottom of the suction duct 35. The partition wall 8 that divides the refrigerator compartment 3 and the vegetable compartment 4 is provided with a cold air supply duct 8 a for guiding a part of the cold air from the refrigerator compartment 3 into the vegetable compartment 4.

  Now, in the present embodiment, as described above, a mist discharge means for generating mist exhibiting sterilizing and deodorizing action in the air duct 34 and supplying the mist to the refrigerator compartment 3 and the vegetable compartment 4. An electrostatic atomizer 36 is provided. The electrostatic atomizer 36 will be described in detail with reference to FIGS. The electrostatic atomizer 36 has a high voltage applied to a water storage section for storing water, a mist generating unit 38 that sucks water from the water storage section into a mist, and a mist discharge pin 39 (described later) of the mist generating unit 38. And a high-voltage power supply device 40 (see FIG. 2).

  As described above, in the present embodiment, the water receiver 32 also serves as the water reservoir of the electrostatic atomizer 36, and the description will be made hereinafter by referring to the water receiver 32. In this case, as shown in FIG. 3, the water receiving portion 32 as the water storage portion is formed in a horizontally long rectangular container shape having an open upper surface, and is disposed below the refrigerator 20 for the refrigerator compartment. During the defrosting operation, frost or the like adhering to the surface of the refrigerator 20 for the refrigerator compartment is condensed (aggregated) to become water, and falls into the water receiving portion 32 and is stored. At this time, a water holding member 41 made of sponge is provided in the water receiving portion 32.

  As shown in FIGS. 2 and 3, the mist generating unit 38 is located on the front side of the water receiving portion 32 on the right side when viewed from the front, and is attached via a support member 46 (see FIG. 3). Yes. The mist generating unit 38 includes a thin cylindrical case 42 made of an insulating material, a plurality of, for example, eight mist discharge pins 39, a conductive sheet 43, a water retaining material 44, a water absorption pin 45, and electrode pins (not shown). And so on.

  The mist release pin 39 is formed, for example, by mixing polyester fiber and carbon fiber as a conductive material and twisting them into a pin shape (bar shape). doing. Each mist release pin 39 carries platinum nanocolloid. The platinum nanocolloid can be supported, for example, by immersing the mist release pin 39 in a treatment liquid containing the platinum nanocolloid and baking it. Although not shown in detail, each of the mist discharge pins 39 passes radially through the eight holes formed at equal intervals in the peripheral wall of the case 42 so that the tip end side extends in the outer peripheral direction on substantially the same plane. It is arranged.

  The conductive sheet 43 is formed, for example, by mixing polyester fibers and carbon fibers as a conductive material into a non-woven fabric, and has water retention and conductivity. As shown in FIG. 3, the conductive sheet 43 is arranged in an annular shape along the inner peripheral wall of the case 42, and contacts (electrically connects) the base end side of each mist discharge pin 39. It is provided as follows. Although not shown, the tip of the electrode pin is electrically connected to the conductive sheet 43.

  The water retaining material 44 is formed in a circular shape from, for example, a urethane sponge having excellent water retention and moisture absorption characteristics, and is closely accommodated inside the conductive sheet 43 in the case 42. The water absorption pin 45 is formed, for example, by twisting polyester fibers into a rod shape, and is excellent in water retention and moisture absorption characteristics. As shown in FIG. 2, the water absorption pin 45 has one end in contact with the water retaining material 44 in the case 42 and the other end in contact with the water retaining member 41 of the water receiving portion 32. Thus, the water stored in the water receiving portion 32 and held in the water holding member 41 is sucked up by the water absorption pin 45 and held in the water holding material 44, and supplied from the water holding material 44 to each mist discharge pin 39. It has come to be.

  At this time, the mist generating unit 38 (case 42) is located in the blower duct 34, and is provided in a state in which each mist discharge pin 39 is exposed in the cold air circulation path. Further, each mist discharge pin 39 is arranged so as to be directed parallel to the inner wall of the air duct 34. That is, each mist discharge pin 39 is provided along a plane parallel to the flow direction of the cold air in the air duct 34.

  As is well known, the high-voltage power supply device 40 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 is molded by an insulating material. . As shown in FIG. 2, the high-voltage power supply device 40 is disposed so as to be embedded in the insulating material of the convex wall portion 33, generates a negative high voltage (for example, −6 kV), and outputs it. It outputs to an electrode pin via a terminal.

  Thereby, a negative high voltage from the high-voltage power supply device 40 is applied to each mist discharge pin 39 via the electrode pin and the conductive sheet 43, and each mist discharge pin 39 is negatively charged. In this case, the outer box of the refrigerator main body 1 is grounded via a ground wire (not shown) or the like, and the grounded outer box is a negatively charged mist discharge pin. It is comprised so that it may function as a counter electrode corresponding to 39.

  In the electrostatic atomizer 36 configured in this way, the water in the water receiver 32 is sucked up and supplied to the mist discharge pins 39, and the mist discharge pins 39 are connected to the high voltage power supply device 40. Negative high voltage is applied. At this time, electric charges concentrate on the tip of each mist discharge pin 39, 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 39 is split (Rayleigh split) and discharged from the tip in the form of a 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 39, and sterilization and deodorization are enabled by the action of the hydroxy radicals. In this case, a counter electrode corresponding to the negatively charged mist discharge pin 39 is not provided in the vicinity of the mist discharge pin 39. Therefore, the discharge itself from the mist emitting pin 39 becomes very gentle, and no corona discharge is generated between the discharge electrode and the counter electrode. Generation of nitrogen oxides, nitrous acid, nitric acid, etc. generated by the

  In this embodiment, the control device 25 controls the refrigeration cycle, the blower fan 30 and the electrostatic atomizer 36 (high voltage power supply device 40) by the software configuration, and performs the cooling operation and the defrosting operation. Run. At this time, as will be described in the following description of the operation, during the normal cooling operation, the electrostatic atomizer 36 is turned off and the blower fan 30 is rotated in the forward direction so as to cool the refrigerator 20 for the refrigerator compartment. The cold air generated by the above is circulated and supplied in the order of the refrigerator compartment 3 and the vegetable compartment 4.

  In the present embodiment, the defrosting operation for the refrigerator 20 for refrigeration room is performed, for example, periodically (once every hour for several minutes). In the defrosting operation, the electrostatic atomizer 36 is turned on and the blower fan 30 is rotated in the reverse direction while the supply of the refrigerant to the refrigerator 20 for the refrigerator compartment is stopped. Thereby, it is comprised so that cold air may be circulated by the path | route which goes from the said cooler 20 for refrigerator compartments to the said electrostatic atomizer 36 (mist generation | occurrence | production unit 38). That is, at this time, the electrostatic atomizer 36 (mist generating unit 38) is provided downstream of the refrigerating room cooler 20 in the cold air circulation path.

  Next, the operation of the above configuration will be described. As described above, during the normal cooling operation for the refrigerator compartment 3 and the vegetable compartment 4, the blower fan 30 is driven in a normal rotation. Then, as shown by the white arrow in FIG. 1, the air in the refrigerator compartment 3 is sucked into the suction duct 35 from the suction port 37, and the air in the vegetable compartment 4 passes through the opening 35a and enters the suction duct 35. Then, the air is drawn into the cooler room 31 for the refrigerator compartment through the air duct 34.

  And cold air is produced | generated by the cooler 20 for refrigerator compartments, and the cold air is supplied in the refrigerator compartment 3 from each blower outlet 29a through the blowing duct 29. FIG. After the cold air supplied into the refrigerator compartment 3 contributes to the cooling of the stored items (food), a part of the cold air is sucked into the suction duct 35 from the suction port 37, and the rest passes through the cold air supply duct 8a and the vegetable compartment 4 After being supplied to the inside and contributing to cooling of the stored items (vegetables, etc.), the circulation of being sucked into the suction duct 35 from the opening 35a is repeated.

  At this time, the circulation path of the cold air is formed in the order of the blower fan 30, the cooler 20 for the cold room, the cold room 3, the vegetable room 4, and the blower fan 30, so that cooler cold air can be supplied to the cold room 3 side, and the storage temperature An appropriate cold air supply according to the belt can be performed. During this cooling operation, the electrostatic atomizer 36 is turned off and no mist is generated. Although the mist generating unit 38 is located in the air duct 34, the mist generating unit 38 is thin and is disposed in parallel with the flow of the cold air. In addition, it is possible to ensure a sufficient amount of air flow without increasing the size of the air duct 34.

  If the cooling operation is continued for a long time, frost or condensation is generated in the refrigerator 20 for the refrigerator compartment, and the cooling efficiency is lowered. Therefore, in this embodiment, the supply of the refrigerant to the refrigerator 20 for the refrigerator compartment is stopped periodically (about once per hour), and the defrosting operation is executed. In this defrosting operation, the electrostatic atomizer 36 is turned on, and the blower fan 30 is reversely rotated. By this defrosting operation, the frost adhering to the cooler 20 is melted to become water, falls and is stored in the water receiver 32.

  When the electrostatic atomizer 36 is turned on, the water in the water receiving portion 32 is sucked up by the water absorption pins 45 and supplied to the mist discharge pins 39 via the water retaining material 44. At the same time, a negative high voltage from the high-voltage power supply device 40 is applied to each mist discharge pin 39 via the electrode pin and the conductive sheet 43, and a fine mist containing hydroxy radicals from the tip of each mist discharge pin 39. Will be released.

  At this time, the air that has passed through the refrigerator 20 for the refrigerating chamber passes through each mist discharge pin 39 portion in the air duct 34, contrary to the white arrow described above, by the reverse rotation of the air fan 30. The air is blown forward through the blower fan 30, a part of which is supplied into the vegetable compartment 4 from the opening 35 a, and the remaining part is supplied to the refrigerator compartment 3 through the suction duct 35 through the suction port 37. The air in the vegetable compartment 4 also flows to the refrigerating compartment 3 through the cold air supply duct 8a, and the air in the refrigerating compartment 3 is returned from each outlet 29a to the cooler compartment cooler 20 through the blowout duct 29. Is done.

  During this defrosting operation, circulating air flows in the order of the electrostatic atomizer 36 (mist generating unit 38), the blower fan 30, the vegetable chamber 4 and the refrigerator compartment 3 from the refrigerator 20 for the refrigerator compartment. The mist discharged from the discharge pin 39 is supplied to the vegetable compartment 4 and the refrigerator compartment 3 on the circulating air. Thereby, the inside of the vegetable compartment 4 and the refrigerator compartment 3 can be sterilized and deodorized, and it can be expected to maintain the freshness of stored items (eg, vegetables).

  In this case, the defrost water from the refrigerator 20 for the refrigerator compartment is automatically supplied to the water receiving portion 32 that is the water storage portion of the electrostatic atomizer 36, so The user's water supply operation can be made unnecessary. Further, the mist released by the electrostatic atomizer 36 (mist generating unit 38) does not pass through the refrigerator 20 for the refrigerator compartment (without being attached (aggregated) to the refrigerator 20 for the refrigerator compartment), and the vegetable compartment 4 A sufficient amount of mist can be effectively supplied to the refrigerator compartment 3.

  Moreover, since the mist generating unit 38 is located in the air duct 30 and has a plurality of mist discharge pins 39 in a state of being exposed in the circulation path of the cold air, each mist discharge pin 38 is configured. It is possible to widen the distance between the tip portions of 39 to facilitate the mist from each mist discharge pin 39 and to supply the mist over a wide range as a whole by putting it on the circulating air generated by the blower fan 30. Become.

  According to such a present Example, the following effect can be acquired. That is, since the electrostatic atomizer 36 that mists and discharges water is provided in the refrigerator body 1, the mist can be supplied into the refrigerator compartment 3 and the vegetable compartment 4. It is possible to achieve sterilization and deodorization in the vegetable room 4 and maintaining the freshness of stored items.

  At this time, the defrost water generated from the refrigerator 20 for the refrigerator compartment is automatically supplied to the water receiving portion 32 functioning as the water storage portion of the electrostatic atomizer 36, so that the electrostatic atomizer 36. The user's water supply operation can be made unnecessary. Moreover, since it is not necessary to provide a separate water storage part, it is needless to say that the configuration of the electrostatic atomizer 36 can be simplified and downsized. By providing the electrostatic atomizer 36 in the air duct 34 that is invisible to the user, the appearance is improved.

  The electrostatic atomizer 36 (mist generation unit 38) is provided downstream of the refrigerator 20 for the cold room in the cool air circulation path when the electrostatic atomizer 36 is driven. Therefore, the mist generated by the electrostatic atomizer 36 can be supplied to the refrigerator compartment 3 and the vegetable compartment 4 without passing through the refrigerator 20 for the refrigerator compartment, and the mist is condensed (aggregated) and refrigerated. Generation | occurrence | production of the situation which adheres to the cooler 20 for rooms can be suppressed, and mist can be supplied to the refrigerator compartment 3 and the vegetable compartment 4 effectively.

  In particular, in this embodiment, the blower fan 30 is configured to be able to rotate forward and reverse, and the flow of the circulating air is reversed between the normal cooling operation and the defrosting operation for driving the electrostatic atomizer 36. It was configured as follows. Thereby, during cooling operation, there is no waste of mist and adhesion to the cooler 20 for the refrigerator compartment, and an appropriate cold air flow according to the storage temperature zone of the refrigerator compartment 3 and the vegetable compartment 4 can be obtained. . On the other hand, during the defrosting operation, the electrostatic atomizer 36 is turned on while reversing the flow of the circulating wind, so that the released mist does not pass through the refrigerator 20 for the refrigerator compartment (without being attached), and the vegetables A sufficient amount of mist can be effectively supplied to the chamber 4 and the refrigerator compartment 3.

  In this embodiment, as the mist releasing means, the electrostatic atomizer 36 having the mist releasing pin 39 that releases the mist when a voltage is applied is adopted, so that a hydroxy radical having a strong oxidizing action is generated, It can effectively perform sterilization and deodorization. Also, the electrostatic atomizer 36 (mist generating unit 38) is configured such that the water holding member 41 is provided in the water receiving portion 32, and water is sucked up by the water absorbing pin 45 and supplied to the mist discharging pin 39. As a result, even if a relatively small amount of water is stored in the water receiving portion 32, the water can be satisfactorily supplied to the mist discharge pin 39, and mist can be generated promptly when turned on. it can.

  Furthermore, since the mist generating unit 38 is made thin and includes a plurality of mist discharging pins 39, the mist generating unit 38 is arranged in a small space even though a sufficient amount of mist is generated. Therefore, the air duct 35 can be easily disposed in the air duct 35 without increasing the size of the air duct 35. Moreover, since the mist discharge pin 39 is exposed in the cold air circulation path, the generated mist can be supplied to a wide range of the vegetable compartment 4 and the refrigerator compartment 3.

  FIG. 4 shows another embodiment of the present invention, which is different from the above embodiment in the configuration of the water receiving portion 48 as a water storage portion. That is, the water receiving portion 48 is also configured to receive defrost water located below the refrigerator 20 for the refrigerator compartment, and has a recessed portion 48a that is further recessed at the bottom thereof. Yes. Here, the water holding member 41 is omitted. And the electrostatic atomizer 36 (mist generating unit 38) of the structure equivalent to the said Example is provided, and the edge part of the water absorption pin 45 is located in the recessed part 48a.

  In this configuration, the defrost water generated from the refrigerator 20 for the refrigerator compartment is automatically supplied to the water receiving portion 48 that functions as the water storage portion of the electrostatic atomizer 36, and accumulates in the recess 48a. Then, the water stored in the water receiver 48 is sucked up by the water absorption pin 45 from the recess 48a and is held by the water retention material 44 of the mist generating unit 38, and is supplied from the water retention material 44 to each mist discharge pin 39. The Therefore, even if a small amount of water is stored in the water receiving portion 48, it can be efficiently supplied to the mist generating unit 38 via the water absorption pin 45. This embodiment is also the same as the above embodiment. The operation and effect of can be obtained.

  FIG. 5 shows still another embodiment of the present invention, and the configuration of the refrigerator main body 51 is different from the above embodiment. That is, FIG. 5 shows an upper half portion of the refrigerator main body 51 excluding the freezer compartment, and a refrigerator compartment 52 and a vegetable compartment 53 serving as storage rooms are provided vertically. A cooler chamber 55 that houses a refrigerator 54 for the refrigerator compartment is provided on the back wall of the refrigerator compartment 52, and cold air is circulated and supplied to the refrigerator compartment 52 and the vegetable compartment 53 at the upper portion of the cooler chamber 54. A blower fan 56 is provided.

  Although not shown, a cold air supply duct is provided on the left and right sides of the cooler chamber 55 so as to be divided into two branches from the blower fan 56 portion and extend downward on the back wall portion of the refrigerator main body 51. The cold air supply duct is provided with a plurality of air outlets that open in the refrigerator compartment 52 and the vegetable compartment 53. Further, a suction duct 57 is provided on the back wall portion of the refrigerator main body 51 and has a lower end that opens in the vegetable compartment 53 and extends upward toward the cooler compartment 55.

  In the cooler chamber 55, a water receiving portion 58 for receiving defrost water is provided below the refrigerating chamber cooler 54. Similarly to the above-described embodiment, the water receiving portion 58 is provided. An electrostatic atomizer 36 (a mist generating unit 38) is provided as a mist discharging means using the section 58 as a water storage section. Also in this configuration, during the cooling operation, the electrostatic atomizer 36 is turned off and the blower fan 56 is rotated forward. Thereby, the air in the vegetable compartment 53 is sucked in from the lower part of the suction duct 57 and is cooled by the cooler 54 for the refrigerating room in the cooler room 55, and the cold air passes through the cold air supply duct from the outlet to the refrigerating room. The circulation supplied in the vegetable compartment 53 is repeated.

  On the other hand, during the defrosting operation, the electrostatic atomizer 36 is turned on and the blower fan 56 is reversely rotated. As a result, the air in the refrigerating room 52 is sucked from the cold air supply duct, passes through the refrigerating room cooler 54, faces the electrostatic atomizer 36 (mist generation unit 38), and passes through the suction duct 57 in the vegetable room 53. A circulation path to be supplied to is configured. At this time, the mist discharged from the mist discharge pin 39 is supplied to the vegetable compartment 53 and the refrigerator compartment 52 without passing through the refrigerator 54 for the refrigerator compartment. Therefore, also in this embodiment, the same operation and effect as the above-mentioned one embodiment can be obtained.

  In addition, this invention is not limited only to each Example mentioned above, The following modifications or expansions are possible. That is, various modifications can be made to the configuration of the mist discharging means. For example, it may be an electrostatic atomizer that includes a plurality of mist discharge pins extending in the same direction and arranged in parallel, and the material of the mist discharge pin may be a porous ceramic material or a porous metal material. Etc. may be used. The mist discharge pin may be configured to have a sharp tip. It is also possible to employ a mist emitting means that uses ultrasonic vibration without using electrostatic atomization.

  Moreover, in each said Example, although this invention was applied to the refrigerator provided with the two coolers of the coolers 20 and 54 for refrigerator compartments, and the cooler 21 for freezer rooms, one cooler in a refrigerator main body. The present invention can also be applied to a type of refrigerator that includes a damper device or the like that controls the flow of cold air to each room. In addition, the present invention is not limited to the above-described embodiments, and various modifications can be made to the configuration (arrangement) of each chamber in the refrigerator main body, the position where the cooler is provided, the duct configuration, and the like. The present invention can be implemented with appropriate modifications within the scope not departing from the gist.

  In the drawings, 1, 51 is a refrigerator body, 3, 52 is a refrigerator room (storage room), 4, 53 is a vegetable room (storage room), 20, 54 are refrigerators for the refrigerator room, 25 is a control device, and 29 is an outlet. Duct, 30 and 56 are blower fans, 32, 48 and 58 are water receiving portions (water storage portions), 33 is a convex wall portion, 34 is a blower duct, 35 is a suction duct, and 36 is an electrostatic atomizer (mist discharge means) ), 38 is a mist generating unit, 39 is a mist discharge pin, 40 is a high voltage power supply device, 41 is a water holding member, 42 is a case, 43 is a conductive sheet, 44 is a water retaining material, 45 is a water absorption pin, and 48a is a recess. .

Claims (1)

A refrigerator body having both a refrigerated room and a vegetable room in a refrigerated temperature zone;
A cooler for cooling the refrigerator compartment and vegetable compartment provided in the refrigerator body;
A blower fan that has a suction duct for sucking air from the refrigerator compartment and the vegetable compartment, and circulates and supplies cold air generated by the cooler into the refrigerator compartment and the vegetable compartment;
A mist discharging means for mist-generating and discharging water ,
The mist releasing means comprises an electrostatic atomizer that emits fine mist containing hydroxy radicals,
Wherein the increase is expected control state of the temperature of the supply of the refrigerant is stopped against the cooler the cooling chamber or vegetable compartment, which both generates the mist by the mist emitting means, the mist by rotating the blower fan Supplying to the vegetable compartment without passing through the cooler, and supplying the remaining part from the suction duct to the refrigerator compartment to maintain the freshness of the stored items in the refrigerator compartment and the vegetable compartment. refrigerator.

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