JP2009156567A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator capable of efficiently retrieving evaporated moisture from stored food and sufficiently humidifying in a storage container. <P>SOLUTION: Even some mist from mist sprayed by a mist spraying means 67 falls to a lower side instead of being sprayed into a lower storage container 64 and remains on a wind direction auxiliary rib 168 as waterdrop, evaporation can be performed while the waterdrop is sliding down on a long path along the inclination, and the waterdrop on the wind direction auxiliary rib 168 can be more securely evaporated. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a refrigerator provided with a storage room maintained at high humidity.

  Factors that affect the decline in freshness of vegetables include temperature, humidity, environmental gas, microorganisms, and light. Vegetables are living creatures that are breathing and transpiration, and in order to maintain freshness, it is necessary to suppress respiration and transpiration. Except for some vegetables, such as those that cause chilling disorders, respiration is suppressed at low temperatures, and transpiration can be prevented by high humidity. In recent years, refrigerators for home use have been designed to preserve vegetables, and are equipped with sealed vegetable containers that are controlled to cool vegetables to an appropriate temperature and to increase the humidity in the cabinet to suppress transpiration of vegetables. There is something. In addition, as a means for increasing the humidity in the cabinet, there is also a means that uses a means for spraying mist.

  Conventionally, as a refrigerator equipped with this type of mist spraying function, there is a refrigerator that suppresses the transpiration of vegetables by vibrating a hygroscopic material with an ultrasonic oscillator to generate and spray mist to humidify the vegetable compartment (for example, Patent Document 1).

  6 and 7 show a conventional refrigerator described in Patent Document 1. FIG.

  As shown in FIG. 6, the refrigerator main body 1 is provided with a refrigerating chamber 2, and the front opening is closed by a rotary door 3. The vegetable compartment 4 is provided below the refrigerator compartment 2, and its front opening is closed by a drawer door 5. A freezer compartment 6 is provided below the vegetable compartment 4, and the front opening is closed by a drawer door 7. The refrigerator compartment 2 and the vegetable compartment 4 are partitioned by a partition plate 8. The partition plate 8 is provided with a hole 9 for allowing cold air to flow from the refrigerator compartment 2 into the vegetable compartment 4. A vegetable container 10 is attached to the drawer door 5 and is pulled out as the drawer door 5 is opened and closed. A vegetable container lid 11 is disposed on the vegetable container 10 and closes the vegetable container 10 when the drawer door 5 is closed. At this time, the vegetable container lid 11 is fixed to the refrigerator main body side. The vegetable container lid 11 is provided with ultrasonic humidification means 12 to evaporate moisture inside the vegetable container 10. The refrigerator compartment 2 is provided with a cooler 13 for the refrigerator compartment, and cools the refrigerator compartment 2 and the vegetable compartment 4 by circulating cold air by operating the fan 14. Although not shown, this refrigerator also includes a cooler for a freezing temperature zone and cools the freezing chamber 6.

  In addition, as shown in FIG. 7, the ultrasonic humidifying means 12 is provided in the hole 15 of the vegetable container lid 11 and includes a water absorbing material 16 and an ultrasonic oscillator 17.

  The operation of the refrigerator configured as described above will be described below.

  When the temperature of the refrigerator compartment 2 / vegetable compartment 4 rises, the refrigerant flows through the cooler 13 and the fan 14 is driven. As a result, the cool air around the cooler 13 returns to the cooler 13 through the refrigerator compartment 2, the holes 9, and the vegetable compartment 4, as indicated by arrows in FIG. Thereby, the refrigerator compartment 2 and the vegetable compartment 4 are cooled. This state is called a cooling mode.

  Next, when the refrigerator compartment 2 and the vegetable compartment 4 are almost cooled, the supply of the refrigerant to the cooler 13 is stopped. However, the fan 14 continues to operate. Thereby, the refrigerator compartment 2 and the vegetable compartment 4 are humidified by melt | dissolution of the frost adhering to the cooler 13. FIG. This state is referred to as a humidification mode (so-called “humidity operation”).

  After the humidification mode is continued for a predetermined time (several minutes), the fan 14 is stopped and the operation stop mode is set.

  After this, when the temperature of the refrigerator compartment 2 / vegetable compartment 4 increases, the cooling mode is entered again.

  Next, the ultrasonic humidifying means 12 will be described.

The water absorbing material 16 is made of a water absorbing material such as silica gel, zeolite, activated carbon or the like. Therefore, moisture in the flowing air is adsorbed in the humidification mode described above. Then, in the latter half of the cooling mode, the ultrasonic oscillator 17 is driven. Thereby, the water | moisture content in the water absorbing material 16 is discharged | emitted outside. Thereby, the inside of the vegetable container 10 is humidified. In the second half of the cooling mode, the purpose of driving the ultrasonic oscillator 17 is to prevent drying of the vegetable compartment 4 due to a decrease in humidity.
JP 2004-125179 A

  In the above-described conventional configuration, the vegetable container 10 is closed at the upper surface by the vegetable container lid 11, and even if cold air containing moisture circulates in the vegetable compartment 4 during the humidification mode (during wet operation), the vegetable container 10 It is difficult to directly humidify the inside of the container 10. In the conventional configuration, the moisture in the air in the refrigerator compartment 2 and the moisture in the space other than the storage container 10 in the vegetable compartment 4 are used as the water supply source to the ultrasonic oscillator 17. Most of the moisture in the space is derived from warm moisture that flows into the cabinet by opening and closing the door, and the amount of moisture is less than in the storage container 10 in which vegetables containing a lot of moisture are stored. Sufficient humidification is not always possible.

  This invention solves the said conventional subject, and it aims at providing the refrigerator which can fully humidify.

  In order to solve the above-described conventional problems, the refrigerator of the present invention includes a storage body in a refrigerator body, a door that closes a front opening of the storage room, a storage container provided in the storage room, and the storage container. A mist spraying means for spraying mist inside, the mist spraying means condensing moisture in the air and spraying it as a mist in a storage chamber, and further comprising a humidity recovery means below the mist spraying means. is there.

  Thus, even when there is mist particles that have fallen downward without being sprayed into the storage container in the mist sprayed from the mist spraying means, the humidity recovery means is provided on the lower side of the mist spraying means. These mists are collected and can be evaporated from the humidity collecting means into the air, and it is possible to prevent condensation due to accumulation of water droplets by the mist on the bottom surface of the vegetable compartment.

  The refrigerator of this invention can prevent the dew condensation by the water droplet by mist collecting on the bottom face part of a vegetable room, after improving the freshness effect by mist spraying, and can provide a high quality refrigerator.

  According to the first aspect of the present invention, there is provided a storage chamber in the refrigerator main body, a door for closing a front opening of the storage chamber, a storage container provided in the storage chamber, and a mist for spraying mist in the storage container. Spraying means, wherein the mist spraying means condenses moisture in the air and sprays it in the storage chamber as mist, and further includes a humidity recovery means below the mist spraying means.

  Thus, even when there is mist particles that have fallen downward without being sprayed into the storage container in the mist sprayed from the mist spraying means, the humidity recovery means is provided on the lower side of the mist spraying means. These mists are collected and can be evaporated from the humidity recovery means into the air, and it is possible to prevent condensation due to accumulation of water droplets by the mist on the bottom of the vegetable compartment, so that the mist can be kept fresh. It is possible to provide a high-quality refrigerator while improving the effect.

  According to a second aspect of the present invention, in the first aspect of the present invention, the humidity recovery means is a wind direction auxiliary rib provided so as to protrude from the wall surface in the storage chamber.

  As a result, it is possible to provide a humidity recovery means that recovers mist particles that have fallen downward without being sprayed into the storage container in the mist sprayed from the mist spraying means with a simple structure, and are less reliable and less reliable. High humidity introduction means can be provided.

  The invention according to claim 3 is the invention according to claim 2, wherein the airflow direction auxiliary rib is continuously provided in the left-right direction of the mist spraying means.

  As a result, even if the mist sprayed from the mist spraying means that has fallen downward without being sprayed into the storage container falls on the wind direction auxiliary rib and becomes water droplets, the water droplets from the left and right are viewed from the left and right. It is possible to prevent the lower portion from leaking out and to prevent dew condensation due to accumulation of water droplets due to mist on the bottom of the vegetable compartment.

  According to a fourth aspect of the invention, in the invention of the second or third aspect, the wind direction auxiliary rib is provided in a shape inclined in the left-right direction of the mist spraying means.

  As a result, even if mist that has fallen downward without being sprayed into the storage container in the mist sprayed from the mist spraying means has accumulated a water droplet on the wind direction auxiliary rib, a long path along this inclination is taken. Evaporation can be performed while sliding down, and water droplets on the wind direction auxiliary rib can be evaporated more reliably.

  The invention according to claim 5 is the invention according to any one of claims 2 to 4, wherein the height is the same as or higher than the mist spraying means above the wind direction auxiliary rib as the humidity recovery means. A wind direction rib as a humidity introducing means is provided on the side.

  As a result, the high-humidity cold air evaporated by the airflow direction auxiliary rib that is the humidity recovery means does not leak from the upward direction of the mist spraying means by the humidity introducing means, and the periphery of the mist spraying apparatus becomes high humidity, and the inside of the storage container Moisture can be transported to the vicinity of the mist spraying means, and the moisture can be collected by the mist spraying means and returned to the storage container, thereby sufficiently humidifying the storage container and maintaining the freshness of the vegetables. it can.

  The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein an ultrasonic system is used for the mist spraying means, and a fine mist having a particle diameter of several μm is generated. Since it is possible to cope with a large amount of spraying, the inside of the storage container can be sufficiently humidified with fine mist to maintain the freshness of the vegetables.

  The invention according to claim 7 is the invention according to any one of claims 1 to 5, wherein an electrostatic atomization system is used for the mist spraying means, and the particle diameter is from several nm to several μm. Fine mist can be generated, and since the sprayed mist has a negative charge, the adhesion rate to vegetables and the like can be further improved, and the freshness of vegetables can be maintained.

  Hereinafter, embodiments of the refrigerator of the present invention will be described with reference to the drawings, but the same reference numerals are given to the same configurations as those of the conventional example or the embodiment described above, and detailed description thereof will be omitted. . The present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a front view of the refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a longitudinal sectional view of the refrigerator in the same embodiment. FIG. 3 is a perspective view showing a storage room in the refrigerator according to the embodiment.

  As shown in FIGS. 1, 2, and 3, the refrigerator body 1 includes an outer box 18, an inner box 19, a hard foam urethane that is foam-filled in a space formed by the outer box 18 and the inner box 19, and the like. The foam insulation material 20 is insulated from the surroundings and divided into a plurality of storage rooms. A refrigeration room 21 as a first storage room is provided at the top, and a switching room 22 as a fourth storage room and an ice making room 23 as a fifth storage room are provided side by side at the lower part of the refrigeration room 21. A vegetable room 24 as a second storage room is disposed below the chamber 22 and the ice making room 23, and a freezer room 25 as a third storage room is disposed at the bottom.

  The refrigerator compartment 21 is normally set to 1 ° C. to 5 ° C. at the lower limit of the temperature at which it is not frozen for refrigerated storage. In addition, the vegetable room 24 is often set to 2 ° C. to 7 ° C. which is the same as or slightly higher than the refrigerated room 21. The lower the temperature, the longer the freshness of the leafy vegetables can be maintained. The freezer compartment 25 is set in a freezing temperature zone, and is usually set at −22 ° C. to −15 ° C. for frozen storage, but for example, −30 ° C. or −25 ° C. to improve the frozen storage state. It may be set at a low temperature.

  The switching chamber 22 is from a refrigeration temperature zone, in addition to refrigeration set at 1 ° C. to 5 ° C., vegetables set at 2 ° C. to 7 ° C., and freezing temperature zones normally set at −22 ° C. to −15 ° C. It is possible to switch to a preset temperature zone between the freezing temperature zones. For example, temperature between refrigeration and freezing such as soft freezing (approximately -12 ° C to -6 ° C), partial freezing (approximately -5 ° C to -1 ° C), chilled (approximately -1 ° C to 1 ° C) It is a belt. The switching chamber 22 is a storage chamber provided with an independent door arranged in parallel with the ice making chamber 23, and is often provided with a drawer-type door.

  In the present embodiment, the switching room 22 is a storage room including the refrigeration and freezing temperature zones. However, the refrigeration is performed in the refrigeration room 21, the vegetable room 24, and the freezing is performed in the freezing room 25. Of course, the storage room may be specialized for switching only the intermediate temperature range.

  The ice making chamber 23 makes ice with an automatic ice maker (not shown) provided in the upper part of the room with water sent from a water storage tank (not shown) in the refrigerated room 21, and an ice storage container ( (Not shown) is a storage room that is a storage room provided with an independent door with a small frontage provided in parallel with the switching room 22, and often has a drawer-type door.

  The top surface portion of the refrigerator main body 1 has a stepped recess shape toward the back side of the refrigerator. A machine chamber 26 is formed in the stepped recess portion to form a compressor 27 and a dryer for removing moisture (not shown). The components on the high pressure side of the refrigeration cycle are stored. That is, the machine room 26 in which the compressor 27 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 21. A refrigerator main body that is easy to use by a conventional refrigerator by providing a machine room 26 in the rear region of the uppermost storage room of the refrigerator main body 1 that has been difficult to reach and is a dead space. The space in the machine room at the bottom of 1 can be effectively converted as the storage room capacity, and the storage performance and usability can be greatly improved.

  In the present embodiment, the matter relating to the main part of the invention described below is a type in which the compressor 27 is disposed by providing a machine room in the rear region of the lowermost storage room of the refrigerator main body 1 that has been conventionally common. It may be applied to other refrigerators.

  A cooling room 28 is provided on the back of the vegetable room 24 and the freezing room 25, and the cooling room 28 is partitioned from the vegetable room 24 and the freezing room 25 by a first cooling duct 29 having heat insulation properties. In the cooling chamber 28, a fin-and-tube type cooler 30 is disposed as a typical example. In the upper space of the cooler 30, the cold air cooled by the cooler 30 by the forced convection method is stored in the refrigerating chamber 21. A cooling fan 31 that blows air to the switching chamber 22, the ice making chamber 23, the vegetable chamber 24, and the freezing chamber 25 is disposed, and frost that adheres to the cooler 30 and the cooling fan 31 during cooling is defrosted in the lower space of the cooler 30. A radiant heater 32 made of a glass tube is provided as an apparatus for performing the above operation.

  For example, a sealing material such as flexible foam is attached to the outer periphery of the first cooling duct 29 so as not to cause cold air and water leakage. The first partition wall 33 that partitions the freezer compartment 25 and the vegetable compartment 24 is formed of a heat insulating material such as expanded polystyrene and is removable.

  The second partition wall 34 that divides the switching chamber 22, the ice making chamber 23, and the vegetable chamber 24 includes a substantially L-shaped second partition wall upper plate 35 and a flat plate-like second partition wall lower plate 36 as viewed from the side cross section. The second partition wall 34 is filled with foam heat insulating material 20 such as hard foam urethane. At this time, as described above, the switching chamber 22 and the ice making chamber 23 adjusted to a temperature lower than that of the vegetable chamber 24 are disposed above the vegetable chamber 24, and the vegetable chamber 24 is indirectly cooled from above and is secondly cooled. The second partition wall lower plate 36 functions as a cooling plate.

  The rear surface of the substantially L-shaped second partition wall upper plate 35 is formed of a heat insulating material 37 such as expanded polystyrene, and is supplied with cool air for cooling the refrigerator compartment 21, the switching chamber 22, and the ice making chamber 23. A second cooling duct 38 that forms a passage is provided, and a twin damper 39 as a damper device that adjusts the flow of cold air in the refrigerating chamber 21 and the switching chamber 22 is provided inside, and is switched to the refrigerating chamber 21. The damper device that adjusts the flow of the cold air in the chamber 22 is made into a twin damper, so that the accommodation space is made compact and the cost is reduced.

  The third partition wall 40 that partitions the refrigerating chamber 21, the switching chamber 22, and the ice making chamber 23 is configured by a third partition wall upper plate 81 and a third partition wall lower plate 82, and the third partition wall. 40 is filled with foam heat insulating material 20 such as hard foam urethane. A third cooling duct 83 for blowing cool air into the refrigerator compartment 21 is attached to the rear surface of the refrigerator compartment 21, and a joint surface between the third cooling duct 83 and the second cooling duct 38 is attached. The seal material is affixed to prevent cold air and water leakage. Further, the first cooling duct 29, the first partition wall 33, and the third cooling duct 83 can be removed, but the second partition wall 34, the second cooling duct 38, and the third partition wall 40 can be removed. Since it is attached before urethane foaming of the refrigerator main body 1, it cannot be removed and is firmly joined to the refrigerator main body 1 by the foam heat insulating material 20.

  Further, inside the first cooling duct 29, there are provided a refrigerator compartment 21, a switching chamber 22, an ice making chamber 23, and an air passage 41 for blowing cool air for cooling the freezer compartment 25. Furthermore, the return air path 42 for the refrigerating room returning the cool air from the refrigerating room 21 to the cooler 30, the return air path 43 for the switching room returning the cool air from the switching room 22 to the cooler 30, and the cool air from the ice making room 23. And an ice making chamber return air passage 44 for returning the air to the cooler 30. Furthermore, a vegetable room discharge port 45 through which a part of the cold air flowing through the refrigerating room return air passage 42 is introduced into the vegetable room 24 is provided above the first cooling duct 29. The vegetable room discharge port 45 is configured as a cooling means for cooling the storage container. In addition, a vegetable room suction port 46 for returning the cold air from the vegetable room 24 to the return air passage 42 for the refrigeration room is provided at a position below the vegetable room 24 of the first cooling duct 29. A part corresponding to the freezer compartment 25 of the cooling duct 29 is provided with a first freezer compartment outlet 47 and a second freezer compartment outlet 48 for blowing cool air from the air passage 41 into the freezer compartment 25. Yes. A freezer compartment inlet 49 for returning the cool air from the freezer compartment 25 to the cooler 30 is provided below the first cooling duct 29.

  In the second cooling duct 38, a refrigerating chamber air passage 58 for blowing cold air to the refrigerating chamber 21 through the twin damper 39 and a switching chamber air for blowing cold air to the switching chamber 22 through the twin damper 39. A path 51, a switching chamber discharge port 52 that discharges cold air into the switching chamber 75, an ice making chamber air path 53 that communicates directly from the air path 41 and blows cold air to the ice making chamber 23, and into the ice making chamber 23. An ice making chamber discharge port 54 for discharging cold air is provided. Further, the switching chamber return air passage 55 for returning the cold air from the switching chamber 22 to the cooler 30, the ice making chamber return air passage 56 for returning the cold air from the ice making chamber 23 to the cooler 30, and the cold air from the refrigerator compartment 21. Is provided with a return air passage 57 for the refrigerator compartment for returning the air to the cooler 30.

  The third cooling duct 83 has a refrigeration chamber air passage 58 for introducing cold air into the refrigeration chamber 21 and a plurality of refrigerating chamber outlets 59 for discharging the cold air from the refrigeration chamber air passage 58 to the refrigeration chamber 21. Is provided. Further, at the lower part of the third cooling duct 83, there are provided a refrigerator compartment suction port 60 for returning the cool air from the refrigerator compartment 21 to the cooler 30, and a refrigerator compartment return air passage 61.

  The vegetable compartment 24 is closed so that there is no inflow of outside air by a door 62 that can open its front opening. The door 62 is provided with a pair of left and right plate-like slide rails 63 extending into the vegetable compartment 24, and a lower storage container 64 is placed thereon. The door 62 is opened and closed horizontally by being pulled along the movable direction of the slide rail 63, and the lower storage container 64 is also operated and pulled out. Further, an upper storage container 65 is placed on the lower storage container 64 and is movable simultaneously with the lower storage container 64. At this time, the bottom surface area of the upper storage container 65 is configured to be smaller than the bottom surface area of the lower storage container 64. In this embodiment, the upper storage container 65 and the lower storage container 64 are arranged with a space in the front-rear direction, and a relatively tall food such as a long vegetable such as a PET bottle or Chinese cabbage can be stored in this space. Yes.

  Further, a lid 66 is disposed in the vegetable compartment 24, and when the door 62 is closed, the upper surface opening portion of the upper storage container 65 is closed. Further, when the door 62 is opened, the lid 66 remains in the vegetable compartment 24 and is not pulled out.

  A mist spraying means 67 is disposed in a part of the first cooling duct 29 and is located in the vicinity of the gap between the lower storage container 64 and the upper storage container 65. Further, on the back wall side of the vegetable compartment 24 of the first cooling duct 29, there are provided wind direction ribs 68 which are humidity introducing means extending substantially horizontally in the left and right of the mist spraying means 67. This wind direction rib 68 is a humidity introducing means, and is located at the same height as the upper back of the lower storage container 64 or above the upper rear end of the lower storage container 64, and is connected to the upper storage container 65 and the lower storage container 64. A space between the cooling duct 29 is partitioned up and down. Further, the cooling duct 29 is provided with a wind direction auxiliary rib 168 serving as a humidity recovery means on the lower side of the wind direction rib 68. The wind direction auxiliary rib 168 serving as the humidity recovery means is continuously provided at a position above the vegetable room suction port 46 so as to incline to the left or right, and the lower storage container 64 and the first cooling duct. The space between 29 is divided up and down. The airflow direction rib 68 and the airflow direction auxiliary rib 168, and the upper storage container 65 and the lower storage container 64 are provided with gaps that do not contact each other when the door is opened and closed.

  As described above, the wind direction auxiliary rib 168 as the humidity recovery means is provided below the back wall which is the wall surface on which the mist spraying means 67 is provided, and the humidity introduction means is provided in the left-right direction of the mist spraying means 67. Since the wind direction rib 68 is provided, the mist spraying means 67 is provided in the space of the back wall surrounded by the wind direction rib 68 and the wind direction auxiliary rib 168.

  The wind direction ribs 68 and the wind direction auxiliary ribs 168 are formed integrally with the first cooling duct 29 on the back wall side of the vegetable compartment 24.

  In the present embodiment, the wind direction ribs 68 are positioned above the upper rear end of the lower storage container 64, but may be the same height as the lower storage container 64.

  A recess 69 is provided in the vicinity of the mist spraying means 67 at a part of the rear upper end of the lower storage container 64, and is formed lower than the rear upper end of the lower storage container 64. Note that the vertical and horizontal positions of the recess 69 may be formed such that the spray port 70 of the mist spraying means 67 is not hidden behind the lower storage container 64.

  The cold air outflow portion from the storage container is formed by the recess 69 and the bottom surface of the upper storage container 65.

  The upper storage container 65 is provided with a plurality of air circulation holes 71 in a part thereof.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the operation of the refrigeration cycle will be described. The refrigeration cycle is operated by a signal from a control board (not shown) according to the set temperature in the cabinet, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 27 dissipates heat in a condenser (not shown), condenses and liquefies, and reaches a capillary tube (not shown). After that, the capillary tube is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 27 and becomes a low-temperature and low-pressure liquid refrigerant and reaches the cooler 30. By the operation of the cooling fan 31, heat is exchanged with the air in each storage chamber, the refrigerant in the cooler 30 evaporates, and the supply of low-temperature cold air with a damper or the like is controlled to perform desired cooling of each chamber. The refrigerant exiting the cooler 30 is sucked into the compressor 27 through the suction pipe.

  When the heat is exchanged with the air in each storage chamber and heat is exchanged with the air in each storage chamber, moisture adheres to the cooler 30 and becomes frost. A signal is periodically output from a control board (not shown), the compressor 27 is stopped, the radiant heater 32 is energized, and the cooler 30 is defrosted.

  Next, the flow of cold air in the refrigerator body 1 will be described. The cool air blown from the cooling fan 31 is distributed downward and upward through the air passage 41 and blown. The cold air distributed downward passes through the first freezer compartment outlet 47 and the second freezer compartment outlet 48 and is discharged into the freezer compartment 25 to exchange heat with the air in the freezer compartment 25. It returns to the cooling chamber 28 through the suction port 49.

  Of the cool air blown from the cooling fan 31, the cool air distributed upward reaches the refrigerating chamber 21 from the refrigerating chamber discharge port 59 via the refrigerating chamber air passage 58 and the refrigerating chamber side of the twin damper 39. Further, a part reaches the switching chamber 22 from the switching chamber discharge port 52 via the switching chamber air passage 51 and the switching chamber side of the twin damper 39. Here, a signal is output from a control board (not shown) to operate the twin damper, the flow of cold air is controlled, the temperature of the refrigerator compartment 21 and the switching chamber 22 is controlled, and the internal temperature is adjusted to a predetermined temperature. The cool air blown into the switching chamber 22 exchanges heat with the air in the switching chamber 22 and returns to the cooling chamber 28 through the switching chamber return air passage 55.

  The cold air blown into the refrigerating room 21 exchanges heat with the air in the refrigerating room 21 and is sucked from the refrigerating room suction port 60 to return to the refrigerating room return passage 61, the refrigerating room return air passage 57, and the refrigerating room. Return to the cooling chamber 28 through the return air passage 42. Here, a part of the return cold air from the refrigerator compartment 21 flows into the vegetable compartment 24 through the vegetable compartment discharge port 45 provided in the middle of the refrigerator compartment return air passage 42 to cool the vegetable compartment 24. Become.

  When cold air flows into the vegetable compartment 24 from the vegetable compartment discharge port 45, it passes mainly between the lid 66 and the second partition wall 34 and is on the near side of the door 62 of the upper storage container 65. Enter the front portion of the lower storage container 64 from the portion. Further, the cold air flowing in the vegetable compartment is sucked in from the vegetable compartment suction port 46 located on the most downstream side, and merges into the refrigeration compartment return air passage 42.

  Further, since a part of the cold air that flows into the vegetable chamber 24 from the vegetable chamber discharge port 45 has a characteristic that the cold air flows downward, it is discharged downward along the wall of the cooling duct 29 and cooled. The wind direction is changed by the wind direction ribs 68 formed integrally with the duct 29 and provided on the left and right sides of the mist spraying means 67, so that the cool air flows generally forward without going downward. As described above, the wind direction rib 68 is located at the same height or above the rear upper end of the lower storage container 64, so that the cold air whose direction has been changed forward is the bottom of the upper storage container 65 and the upper rear end of the lower storage container 64. The inside of the lower storage container 64 enters the lower storage container 64 and cools the stored food inside. However, this flow is a part, and the cooling of the stored food is mainly performed by the lid 66 and the second partition. This is performed from a portion that passes through the wall 34 and enters the front portion of the lower storage container 64 from the front portion on the door 62 side of the upper storage container 65.

  In addition, when cold air does not flow into the vegetable compartment 24 from the vegetable compartment discharge port 45, moisture is evaporated from the food stored in the lower storage container 64 with the passage of time from the time of charging. At this time, the air containing the evaporated water flows out of the storage container from the cold air outflow section defined by the recess 69 and the bottom surface of the upper storage container 65 along the flow of the cold air flowing into the lower storage container 64. The wind direction is changed by the wind direction rib 68 which is a humidity introducing means provided continuously in the left-right direction of the mist spraying means 67 and reaches the vicinity of the mist spraying means 67. The inside of the mist spraying means 67 is cooled to a temperature lower than the ambient temperature due to heat conduction from the adjacent air passage 41 in another section, and moisture in the air is condensed inside the mist spraying means 67. The condensed water is sprayed in the form of a mist from the cold air outflow portion partitioned by the recess 69 and the bottom surface of the upper storage container 65. As a result, the transpiration water from the stored food is returned to the stored food itself again by the mist spraying means 67. Therefore, the air passage 41, which is a cooling means for cooling the mist spraying means 67, must be a space in which cool air in a lower temperature zone flows than the storage chamber in which the mist spraying means 67 is provided. Even when the air passage 41 is not used as the means, for example, cold air in a storage room in an adjacent low temperature zone (for example, a freezing temperature zone) may be used.

  Further, in the case where cold air does not flow from the vegetable room discharge port 45 as described above, even if the damper located upstream from the vegetable room discharge port 45 is closed on the air passage, generally the vegetable room Since a damper is not provided downstream of the suction port 46 for use, a flow of cold air is generated from the inside of the lower storage container 64, which is a storage container, toward the suction port 46 for the vegetable compartment. However, since the wind direction auxiliary rib 69 is provided above the vegetable room suction port 46, the air containing the evaporated water does not go directly to the vegetable room suction port 46, but the wind direction rib 68 and the wind direction auxiliary rib 69. It is held in the space partitioned by

  Therefore, high-humidity cold air stays in the space defined by the wind direction rib 68 and the wind direction auxiliary rib 69 and collects in the vicinity of the mist spraying means 67, so that it is easy to collect moisture by the mist spraying means 67.

  Furthermore, since the wall surface in the height direction of the lower storage container 64 is the lowest and the gap between the bottom surface of the upper storage container 65 and the upper end of the back surface of the lower storage container 64 is the largest, the amount of cold air flowing is the largest. Since high-humidity cold air flows out from a large amount of cold-air outflow part, the surroundings of the mist spraying means 67 arranged in the vicinity of the cold-air outflow part become a high-humidity atmosphere, and moisture in the air is condensed inside the mist spraying means 67 It is possible to make it easy to do.

  In this way, the humidity in the lower storage container 64 can be transported to the vicinity of the mist spraying means 67 by the wind direction ribs 68 that are humidity introducing means provided on the left and right of the mist spraying means 67, and further from the mist spraying means 67. Even when there is mist particles that have fallen downward without being sprayed into the storage container in the sprayed mist, the wind direction is a humidity recovery means that is provided continuously on the lower side of the mist spraying means 67 on the left and right. These mists are collected by the auxiliary ribs 168 and evaporated from the wind direction auxiliary ribs 168 into the air, so that moisture is collected by the mist spraying means 67 and returned to the lower storage container 64 again. The inside of the container 64 can be sufficiently humidified to maintain the freshness of the vegetables. Further, the mist particles falling downward from the mist spraying means 67 evaporate by the wind direction auxiliary rib 168 as the humidity collecting means, thereby preventing condensation due to accumulation of water droplets by the mist on the bottom portion of the vegetable compartment. It becomes possible.

  In the present embodiment, it is assumed that the wind direction ribs 68 that are the humidity introduction means are provided continuously in the left-right direction of the mist spraying means 67. However, for example, a notch portion is provided only in a part of the wind direction ribs 68. Especially when cold air does not flow from the discharge port 45 for the vegetable room, the side surface of the storage room is in contact with the outside air around the refrigerator via the heat insulating material, so that the side surface is more side than the internal side of the storage room. As the temperature tends to be higher on the side, rising airflow is generated around the side walls, the rear wall, and the vertical wall of the front door, so that high humidity cold air tends to flow upward. In the wall surface provided with the spraying means 67, the space above the wind direction rib 68 may have a higher humidity than the space defined by the wind direction rib 68 and the wind direction auxiliary rib 69. Rib 68 It can be made to flow into a space defined by the wind direction rib 68 and the wind direction auxiliary rib 69 from a notch portion provided in a part, and the space defined by the wind direction rib 68 and the wind direction auxiliary rib 69 is cold air of high humidity. Stays and collects in the vicinity of the mist spraying means 67, so that the mist spraying means 67 can easily collect moisture.

  In addition, when the cutout portion is provided only in a part of the wind direction rib 68 as described above, it is more desirable to provide it at a place other than directly below the vegetable room discharge port 45 from which the cold air flows from the outside of the storage room. Thus, when cold air flows in from the vegetable room discharge port 45, it becomes difficult for the cold air to flow directly into the space defined by the wind direction rib 68 and the wind direction auxiliary rib 69, and the vegetable room discharge port 45. In the case where no cool air flows from the wind direction rib 68 as described above, even if the upper side of the wind direction rib is higher than the humidity 68 as described above, the humidity is from the notch provided in a part of the wind direction rib 68 to the wind direction rib 68. And air direction auxiliary ribs 69, and high humidity cold air stays in the space defined by the air direction ribs 68 and the air direction auxiliary ribs 69 and collects in the vicinity of the mist spraying means 67. Runode, easily collected moisture by mist spraying means 67.

  Further, since the wind direction auxiliary rib 168 that is a humidity collecting means is provided in a shape that is inclined in the left-right direction, even when a water droplet falls on the wind direction auxiliary rib 168, the inclination is moved downward. It is possible to evaporate the water droplets, and it is possible to evaporate the water droplets collected on the airflow direction auxiliary rib more reliably.

  In the present embodiment, the flow of cold air on the back side, which is the shortest distance connecting the vegetable room discharge port 45 and the vegetable room suction port 46 provided on the back side of the storage room, is changed to the wind direction rib 68 and the wind direction assistance. Since it is blocked by a double rib with the rib 69, it prevents a lot of cool air that has flowed in from the vegetable room discharge port 45 to flow downward and discharge from the vegetable room suction port 46, It flows from the upper side on the back side to the front side, and the direction is changed by the door 62 arranged on the front side, so that cold and dry cold air is introduced from the portion entering the front part of the lower storage container 64, so that those cold and dry For example, a beverage such as a plastic bottle stored in the front portion of the lower storage container 64 is cooled with cold air, and then the cold air having a relatively high humidity passes through the lower storage container 64 and the vicinity of the upper storage container 65 and the mist spraying means 67. So that the flow into the. Therefore, since the humidity on the back side can be made relatively higher than the front side of the vegetable room, that is, the door 62 side, the periphery of the mist spraying means 67 arranged on the back side becomes a high humidity atmosphere. It is possible to create an environment where moisture in the air is likely to condense.

  Further, the return air passage 42 for the refrigerator compartment that communicates with the vegetable compartment suction port 46 that is the downstream side from which the cold air in the vegetable compartment flows out can generally join the cold air passage on the downstream side of the other storage compartment. In many cases, for example, the downstream air passage of the storage room in the freezing temperature zone has a higher flow rate because the low-temperature cold air always flows more than the downstream air passage of the storage room in the refrigeration temperature zone, and the vegetable compartment of the present embodiment Although the cold air in the storage room in the refrigeration temperature zone may be pulled, the flow of the cold air on the back side is made to be double between the wind direction ribs 68 and the wind direction auxiliary ribs 69 as in the present embodiment. Since it is physically blocked by the ribs, it is possible to prevent the humidity from being lowered by the cold air on the back side being pulled from the vegetable room suction port 46.

  That is, even when the vegetable room suction port 46, which is the downstream side from which the cold air flows out of the vegetable room, joins the downstream air path of the storage room in the freezing temperature zone that is lower than the vegetable room, for example, It is possible to prevent a large amount of cold air located above the side wind direction auxiliary rib 69 from flowing out from the vegetable room suction port 46, and the cold air located above the air direction auxiliary rib 69 can maintain high humidity. Therefore, the surroundings of the mist spraying means 67 arranged on the back side become an atmosphere of high humidity, and the mist spraying means 67 can create an environment in which moisture in the air is easily condensed.

  Moreover, since the wind direction rib 68 which is a humidity introducing means can carry the moisture in the storage container to the vicinity of the mist spraying means 67, the inside of the lower storage container 67 is sufficiently humidified by the mist spraying means 67 to maintain the freshness of the vegetables. be able to.

  Further, the storage container is composed of an upper storage container 65 and a lower storage container 64, and air direction ribs 68 as humidity introducing means are provided in the vicinity of the gap between these storage containers, so that moisture in the lower storage container 64 is efficiently used. Humidity can often be collected by the mist spraying means, and returned to the lower storage container 64 by the mist spraying device again, so that the inside of the lower storage container 64 can be sufficiently humidified and the freshness of the vegetables can be maintained.

  Further, the wind direction rib as the humidity introducing means and the wind direction auxiliary rib 69 as the humidity collecting means are provided so as to protrude from the wall surface in the vegetable compartment 24, so that the wind direction of the cold air can be changed with a simple structure, and the failure is further improved. The surrounding of the mist spraying means 67 can be made a high-humidity atmosphere with a small and highly reliable physical structure.

  The cold air that has flowed out of the storage container and passed through the vicinity of the mist spraying means is sucked from the vegetable room suction port 46 and merges with the return air path 42 for the cold room. As can be seen from these series of operations, the vegetable compartment 24 is cooled by using the return cold air from the refrigerator compartment 21.

  The air circulation hole 71 of the upper storage container 65 plays a role of preventing excessive dew condensation in the upper storage container 65.

  In the upper storage container 65, the lid 66 closes the upper opening, and the stored food is prevented from being directly exposed to cold air and dried. Further, the lid 66 allows cold air to flow into the upper storage container 65 from the air circulation hole 71, so that mist having a particularly small particle diameter and high diffusibility among the mist sprayed by the mist spraying means 67 is air circulated. Since it can be circulated from the hole 71 to the upper storage container 65, the upper storage container 65 can be made into a high-humidity space filled with highly diffusible fine mist, and the freshness inside the upper storage container 65 is further improved. It becomes possible to improve.

  At this time, when the sprayed mist has OH radicals by electrostatic atomization, the number of mist particles increases as the mist becomes finer, for example, even at the same humidity. Since the number increases, the inside of the upper storage container 65 can be made a space having a higher sterilizing effect and a higher freshness.

  The second partition wall lower plate 36 functions as a cooling plate and cools the inside of the storage container because the upper part is in the freezing temperature zone where the temperature is lower than that of the vegetable compartment. Since it is configured to be larger than the upper storage container 65 and there is no obstacle between the lower storage container 64 and the space in the front-rear direction of the upper storage container 65, the lower storage container 64 and the upper storage container 65 are arranged in the front-rear direction. The cold will be directly touched by the space. This portion is provided with a lower storage partition 64a, and a storage space on the front side of the lower storage partition 64a is generally provided with storage items other than vegetables such as beverages in PET bottles, and can be cooled relatively quickly. It is.

  Thus, in the present embodiment, the beverage such as a plastic bottle provided on the front side of the storage room is quickly cooled with relatively cool and dry air flowing in from the vegetable room discharge port 45, Since the vicinity of the center, the back side, and the upper storage 65 of the lower storage container 64, which is a space in which vegetables are stored, can be cooled by the cool air with high humidity and low flow rate, the cool air in the vegetable compartment It is possible to perform cooling and mist spraying by making good use of this flow.

  Note that the amount of cool air flowing out of the storage container is small, and does not interfere with the mist spray. Further, it is possible to supply the mist spraying means 67 with water necessary for mist spraying.

  The mist particles sprayed at this time are, for example, about 0.005 μm to 20 μm and very fine. The mist spraying means 67 may be, for example, one that atomizes and sprays water with ultrasonic waves, one that uses an electrostatic atomization system, one that sprays using a pump system, or the like.

  In this way, the cycle of moisture transpiration from the food, condensation, and mist spraying is repeated. According to the present embodiment, the food that is concerned about the cooling speed, such as a PET bottle, is directly discharged cold. The freshness can be maintained by mist spraying for foods that are cooled down and wilted like leafy vegetables.

  At this time, although not shown, heating means such as a heater is provided at least below the wind direction rib 68 which is a humidity introducing means on the back wall inside the vegetable compartment 24, and preferably below the wind direction auxiliary rib 69 which is a humidity collecting means. The mist particles diffused out of the storage container and the transpiration water from the vegetables are not condensed.

  In particular, even when the mist particles dropped downward from the mist spraying means 67 are retained by the wind direction auxiliary rib 168 as the humidity recovery means and become water droplets, the water droplets are evaporated by the heating means provided on the back wall. In addition, it is possible to prevent dew condensation due to accumulation of water droplets due to mist on the bottom of the vegetable room, and at the same time to flow high-humidity air toward the mist spraying means 67 disposed above the wind direction auxiliary rib 168, The surroundings of the mist spraying means 67 are in a high humidity atmosphere, and the mist spraying means 67 can create an environment in which moisture in the air is likely to condense.

  In addition, as compared with other wall surfaces, the back wall provided with the heating means is likely to generate an updraft, and the humidity is likely to rise upwardly on the updraft, and the humidity introduction means It is possible to carry moisture to the vicinity of the mist spraying means 67 without rising upward by the wind direction ribs 68. By collecting the moisture by the mist spraying means 67 and returning it to the storage container, the inside of the storage container is sufficiently humidified. It can maintain the freshness of vegetables.

  In addition, if the attachment part of the mist spraying means 67 of the 1st cooling duct 29 is set to wall thickness thinner than the circumference | surroundings, the mist spraying means 67 can be cooled more locally.

  In addition, the second partition wall lower plate 36 functions as a cooling plate and cools the inside of the storage container. However, the second partition wall lower plate 36 is configured to be larger than the upper storage container 65 and is formed of a PET bottle or the like. Since there is no obstacle between the container and the beverage, it is possible to cool a beverage such as a PET bottle relatively quickly.

  As described above, in the present embodiment, the refrigerator main body 1 having storage rooms such as the refrigerating room 21, the switching room 22, the ice making room 23, the vegetable room 24, the freezing room 25, and the storage room (vegetable room 24) A door 62 that closes the front opening, a plurality of storage containers (a lower storage container 64 and an upper storage container 65) that are provided in the storage room (vegetable room 24) and store food and are arranged one above the other. A cooler 30 for generating cool air for cooling the inside of the room (vegetable room 24, etc.), a cold air outlet (vegetable room outlet 45) for discharging cold air into the storage room (vegetable room 24), and a storage room (vegetable) A cool air suction port (vegetable chamber suction port 46) for returning the cool air cooled in the chamber 24) to the cooler 30, and a mist spraying means 67 for spraying mist into the storage container (mainly the lower storage container 64); The cool air from the cold air outlet (vegetable room outlet 45) is stored in the storage container ( The humidity introducing means 68 is introduced into the stage storage container 64 and the upper stage storage container 65), and the humidity introduction means 68 is arranged on the side of the mist spraying means 67. 64, the cool air introduced into the upper storage container 65) is circulated in the storage containers (lower storage container 64, upper storage container 65), and the moisture in the storage containers (lower storage container 64, upper storage container 65) is mist sprayed. It can be transported to the vicinity of the means 67, and moisture is collected by the mist spraying means 67 and returned to the storage container (lower storage container 64, upper storage container 65), whereby the storage container (lower storage container 64, upper storage container). 65) The inside can be sufficiently humidified to maintain the freshness of the vegetables.

  In the present embodiment, the storage container is composed of the upper storage container 65 and the lower storage container 64, and the gap between the upper storage container 65 and the lower storage container 64 is widened in the vicinity of the mist spraying means 67. Humidity that is continuously disposed in the left-right direction of the mist spraying means 67 after efficiently collecting moisture from the storage containers (lower storage container 64, upper storage container 65) in the vicinity of the mist spraying means 67. It is possible to stop the upward flow by the wind direction rib 68 as the introducing means and collect moisture in the mist spraying means 67, and the mist spraying means 67 can collect and recover the dew.

  Moreover, in this Embodiment, it is provided in the storage room (vegetable room 24), and is provided with a cold air outlet (vegetable room outlet 45) and a cold air inlet (vegetable room inlet 46). In the cooling duct 29, the humidity introducing means is constituted by the wind direction rib 68 and the wind direction auxiliary rib 69 formed integrally with the first cooling duct 29, and the cold air discharge port (vegetable room discharge port) 45) The flow of cold air on the back side of the cold air discharged from 45) is blocked by the double ribs of the wind direction rib 68 and the wind direction auxiliary rib 69, so that it is dried at a relatively low temperature flowing from the vegetable room discharge port 45. Therefore, it is possible to prevent a lot of the cool air from flowing downward and discharging from the vegetable room suction port 46, and to maintain a high humidity between the wind direction rib 68 and the wind direction auxiliary rib 69, and around the mist spraying means 67. Is a high humidity atmosphere, mist spraying hand Moisture in the air can be easily environment condensation at 67.

  In the present embodiment, an ultrasonic method is used for the mist spraying means 67, and fine mist having a particle diameter of several μm can be generated.

  Further, in the present embodiment, an electrostatic atomization method may be used for the mist spraying means 67, fine mist having a particle diameter of several nm to several μm can be generated, and the sprayed mist is static. By having OH radicals by electroatomization, the inside of the storage container can be made a space with a higher sterilizing effect and higher freshness.

(Embodiment 2)
FIG. 4 is a front view of the refrigerator in the second embodiment of the present invention. FIG. 5 is a perspective view showing a storage room in the refrigerator according to the embodiment. FIG. 2 is a longitudinal sectional view of the refrigerator in the first embodiment, but the same configuration is applied to the second embodiment, and will be described below with reference to FIGS. Further, in the present embodiment, detailed description will be mainly made mainly on parts different from the first embodiment, and detailed description on the same parts as those in the first embodiment or parts to which similar techniques can be applied will be omitted. .

  As shown in FIGS. 2, 4, and 5, the refrigerator main body 1 includes an outer box 18, an inner box 19, a hard foam urethane that is foam-filled in a space formed by the outer box 18 and the inner box 19, and the like. The foam insulation material 20 is insulated from the surroundings and divided into a plurality of storage rooms. A refrigeration room 21 as a first storage room is provided at the top, and a switching room 22 as a fourth storage room and an ice making room 23 as a fifth storage room are provided side by side at the lower part of the refrigeration room 21. A vegetable room 24 as a second storage room is disposed below the chamber 22 and the ice making room 23, and a freezer room 25 as a third storage room is disposed at the bottom.

  The refrigerator compartment 21 is normally set to 1 ° C. to 5 ° C. at the lower limit of the temperature at which it is not frozen for refrigerated storage. In addition, the vegetable room 24 is often set to 2 ° C. to 7 ° C. which is the same as or slightly higher than the refrigerated room 21. The lower the temperature, the longer the freshness of the leafy vegetables can be maintained. The freezer compartment 25 is set in a freezing temperature zone, and is usually set at −22 ° C. to −15 ° C. for frozen storage, but for example, −30 ° C. or −25 ° C. to improve the frozen storage state. It may be set at a low temperature.

  The switching chamber 22 is from a refrigeration temperature zone, in addition to refrigeration set at 1 ° C. to 5 ° C., vegetables set at 2 ° C. to 7 ° C., and freezing temperature zones normally set at −22 ° C. to −15 ° C. It is possible to switch to a preset temperature zone between the freezing temperature zones. For example, temperature between refrigeration and freezing such as soft freezing (approximately -12 ° C to -6 ° C), partial freezing (approximately -5 ° C to -1 ° C), chilled (approximately -1 ° C to 1 ° C) It is a belt. The switching chamber 22 is a storage chamber provided with an independent door arranged in parallel with the ice making chamber 23, and is often provided with a drawer-type door.

  In the present embodiment, the switching chamber 22 is a storage room including the refrigeration and freezing temperature zones. Of course, the storage room may be specialized for switching only the intermediate temperature range.

  The ice making chamber 23 makes ice with an automatic ice maker (not shown) provided in the upper part of the room with water sent from a water storage tank (not shown) in the refrigerated room 21, and an ice storage container ( (Not shown) is a storage room that is a storage room provided with an independent door with a small frontage provided in parallel with the switching room 22, and often has a drawer-type door.

  The top surface portion of the refrigerator main body 1 has a stepped recess shape toward the back side of the refrigerator. A machine chamber 26 is formed in the stepped recess portion to form a compressor 27 and a dryer for removing moisture (not shown). The components on the high pressure side of the refrigeration cycle are stored. That is, the machine room 26 in which the compressor 27 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 21. A refrigerator main body that is easy to use by a conventional refrigerator by providing a machine room 26 in the rear region of the uppermost storage room of the refrigerator main body 1 that has been difficult to reach and is a dead space. The space in the machine room at the bottom of 1 can be effectively converted as the storage room capacity, and the storage performance and usability can be greatly improved.

  In the present embodiment, the matter relating to the main part of the invention described below is a type in which the compressor 27 is disposed by providing a machine room in the rear region of the lowermost storage room of the refrigerator main body 1 that has been conventionally common. It may be applied to other refrigerators.

  A cooling room 28 is provided on the back of the vegetable room 24 and the freezing room 25, and the cooling room 28 is partitioned from the vegetable room 24 and the freezing room 25 by a first cooling duct 29 having heat insulation properties. In the cooling chamber 28, a fin-and-tube type cooler 30 is disposed as a typical example. In the upper space of the cooler 30, the cold air cooled by the cooler 30 by the forced convection method is stored in the refrigerating chamber 21. A cooling fan 31 that blows air to the switching chamber 22, the ice making chamber 23, the vegetable chamber 24, and the freezing chamber 25 is disposed, and frost that adheres to the cooler 30 and the cooling fan 31 during cooling is defrosted in the lower space of the cooler 30. A radiant heater 32 made of a glass tube is provided as an apparatus for performing the above operation.

  For example, a sealing material such as flexible foam is attached to the outer periphery of the first cooling duct 29 so as not to cause cold air and water leakage. The first partition wall 33 that partitions the freezer compartment 25 and the vegetable compartment 24 is formed of a heat insulating material such as expanded polystyrene and is removable.

  The second partition wall 34 that divides the switching chamber 22, the ice making chamber 23, and the vegetable chamber 24 includes a substantially L-shaped second partition wall upper plate 35 and a flat plate-like second partition wall lower plate 36 as viewed from the side cross section. The second partition wall 34 is filled with foam heat insulating material 20 such as hard foam urethane. At this time, as described above, the switching chamber 22 and the ice making chamber 23 adjusted to a temperature lower than that of the vegetable chamber 24 are disposed above the vegetable chamber 24, and the vegetable chamber 24 is indirectly cooled from above and is secondly cooled. The second partition wall lower plate 36 functions as a cooling plate.

  The rear surface of the substantially L-shaped second partition wall upper plate 35 is formed of a heat insulating material 37 such as expanded polystyrene, and is supplied with cool air for cooling the refrigerator compartment 21, the switching chamber 22, and the ice making chamber 23. A second cooling duct 38 that forms a passage is provided, and a twin damper 39 as a damper device that adjusts the flow of cold air in the refrigerating chamber 21 and the switching chamber 22 is provided inside, and is switched to the refrigerating chamber 21. The damper device that adjusts the flow of the cold air in the chamber 22 is made into a twin damper, so that the accommodation space is made compact and the cost is reduced.

  The third partition wall 40 that partitions the refrigerating chamber 21, the switching chamber 22, and the ice making chamber 23 is configured by a third partition wall upper plate 81 and a third partition wall lower plate 82, and the third partition wall. 40 is filled with foam heat insulating material 20 such as hard foam urethane. A third cooling duct 83 for blowing cool air into the refrigerator compartment 21 is attached to the rear surface of the refrigerator compartment 21, and a joint surface between the third cooling duct 83 and the second cooling duct 38 is attached. The seal material is affixed so that there is no cold air or water leakage. Further, the first cooling duct 29, the first partition wall 33, and the third cooling duct 83 can be removed, but the second partition wall 34, the second cooling duct 38, and the third partition wall 40 can be removed. Since it is attached before urethane foaming of the refrigerator main body 1, it cannot be removed and is firmly joined to the refrigerator main body 1 by the foam heat insulating material 20.

  Further, inside the first cooling duct 29, there are provided a refrigerator compartment 21, a switching chamber 22, an ice making chamber 23, and an air passage 41 for blowing cool air for cooling the freezer compartment 25. Furthermore, the return air path 42 for the refrigerating room returning the cool air from the refrigerating room 21 to the cooler 30, the return air path 43 for the switching room returning the cool air from the switching room 22 to the cooler 30, and the cool air from the ice making room 23. And an ice making chamber return air passage 44 for returning the air to the cooler 30. Furthermore, a vegetable room discharge port 45 through which a part of the cold air flowing through the refrigerating room return air passage 42 is introduced into the vegetable room 24 is provided above the first cooling duct 29. The vegetable room discharge port 45 is configured as a cooling means for cooling the storage container. In addition, a vegetable room suction port 46 for returning the cold air from the vegetable room 24 to the return air passage 42 for the refrigeration room is provided at a position below the vegetable room 24 of the first cooling duct 29. A part corresponding to the freezer compartment 25 of the cooling duct 29 is provided with a first freezer compartment outlet 47 and a second freezer compartment outlet 48 for blowing cool air from the air passage 41 into the freezer compartment 25. Yes. A freezer compartment inlet 49 for returning the cool air from the freezer compartment 25 to the cooler 30 is provided below the first cooling duct 29.

  In the second cooling duct 38, a refrigerating chamber air passage 58 for blowing cold air to the refrigerating chamber 21 through the twin damper 39 and a switching chamber air for blowing cold air to the switching chamber 22 through the twin damper 39. A path 51, a switching chamber discharge port 52 that discharges cold air into the switching chamber 75, an ice making chamber air path 53 that communicates directly from the air path 41 and blows cold air to the ice making chamber 23, and into the ice making chamber 23. An ice making chamber discharge port 54 for discharging cold air is provided. Further, the switching chamber return air passage 55 for returning the cold air from the switching chamber 22 to the cooler 30, the ice making chamber return air passage 56 for returning the cold air from the ice making chamber 23 to the cooler 30, and the cold air from the refrigerator compartment 21. Is provided with a return air passage 57 for the refrigerator compartment for returning the air to the cooler 30.

  The third cooling duct 83 has a refrigeration chamber air passage 58 for introducing cold air into the refrigeration chamber 21 and a plurality of refrigerating chamber outlets 59 for discharging the cold air from the refrigeration chamber air passage 58 to the refrigeration chamber 21. Is provided. Further, at the lower part of the third cooling duct 83, there are provided a refrigerator compartment suction port 60 for returning the cool air from the refrigerator compartment 21 to the cooler 30, and a refrigerator compartment return air passage 61.

  The vegetable compartment 24 is closed so that there is no inflow of outside air by a door 62 that can open its front opening. The door 62 is provided with a pair of left and right plate-like slide rails 63 extending into the vegetable compartment 24, and a lower storage container 64 is placed thereon. The door 62 is opened and closed horizontally by being pulled along the movable direction of the slide rail 63, and the lower storage container 64 is also operated and pulled out. Further, an upper storage container 65 is placed on the lower storage container 64 and is movable simultaneously with the lower storage container 64. At this time, the bottom surface area of the upper storage container 65 is configured to be smaller than the bottom surface area of the lower storage container 64. In the present embodiment, the upper storage container 65 and the lower storage container 64 are arranged with a space in the front-rear direction, and the upper storage container 65 and the lower storage container 64 are relatively positioned in the space defined by the lower storage partition 64a in front of the lower storage container 64, that is, the front surface. Tall foods such as PET bottles and long vegetables such as Chinese cabbage can be stored.

  Further, a lid 66 is disposed in the vegetable compartment 24, and when the door 62 is closed, the upper surface opening portion of the upper storage container 65 is closed. Further, when the door 62 is opened, the lid 66 remains in the vegetable compartment 24 and is not pulled out.

  In the present embodiment, the wind direction ribs 68 are positioned above the upper rear end of the lower storage container 64, but may be the same height as the lower storage container 64. In the present embodiment, the mist spraying means 67 is disposed on the right side of the vegetable compartment 24 and the wind direction rib 68 is disposed on the left side of the mist spraying means 67. However, the left and right sides may be interchanged. Further, it is desirable that wind direction ribs 68 are provided on both sides of the mist spraying means 67.

  A recess 69 is provided in the vicinity of the mist spraying means 67 at a part of the rear upper end of the lower storage container 64, and is formed lower than the rear upper end of the lower storage container 64. Note that the vertical and horizontal positions of the recess 69 may be formed such that the spray port 70 of the mist spraying means 67 is not hidden behind the lower storage container 64.

  The cold air outflow portion from the storage container is formed by the recess 69 and the bottom surface of the upper storage container 65.

  The upper storage container 65 is provided with a plurality of air circulation holes 71 in a part thereof.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the operation of the refrigeration cycle will be described. The refrigeration cycle is operated by a signal from a control board (not shown) according to the set temperature in the cabinet, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 27 dissipates heat in a condenser (not shown), condenses and liquefies, and reaches a capillary tube (not shown). After that, the capillary tube is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 27 and becomes a low-temperature and low-pressure liquid refrigerant and reaches the cooler 30. By the operation of the cooling fan 31, heat is exchanged with the air in each storage chamber, the refrigerant in the cooler 30 evaporates, and the supply of low-temperature cold air with a damper or the like is controlled to perform desired cooling of each chamber. The refrigerant exiting the cooler 30 is sucked into the compressor 27 through the suction pipe.

  When the heat is exchanged with the air in each storage chamber and heat is exchanged with the air in each storage chamber, moisture adheres to the cooler 30 and becomes frost. A signal is periodically output from a control board (not shown), the compressor 27 is stopped, the radiant heater 32 is energized, and the cooler 30 is defrosted.

  Next, the flow of cold air in the refrigerator body 1 will be described. The cool air blown from the cooling fan 31 is distributed downward and upward through the air passage 41 and blown. The cold air distributed downward passes through the first freezer compartment outlet 47 and the second freezer compartment outlet 48 and is discharged into the freezer compartment 25 to exchange heat with the air in the freezer compartment 25. It returns to the cooling chamber 28 through the suction port 49.

  Of the cool air blown from the cooling fan 31, the cool air distributed upward reaches the refrigerating chamber 21 from the refrigerating chamber discharge port 59 via the refrigerating chamber air passage 58 and the refrigerating chamber side of the twin damper 39. Further, a part reaches the switching chamber 22 from the switching chamber discharge port 52 via the switching chamber air passage 51 and the switching chamber side of the twin damper 39. Here, a signal is output from a control board (not shown) to operate the twin damper, the flow of cold air is controlled, the temperature of the refrigerator compartment 21 and the switching chamber 22 is controlled, and the internal temperature is adjusted to a predetermined temperature.

  The cold air blown into the refrigerating room 21 exchanges heat with the air in the refrigerating room 21 and is sucked from the refrigerating room suction port 60 to return to the refrigerating room return passage 61, the refrigerating room return air passage 57, and the refrigerating room. Return to the cooling chamber 28 through the return air passage 42. Here, a part of the return cold air from the refrigerator compartment 21 flows into the vegetable compartment 24 through the vegetable compartment discharge port 45 provided in the middle of the refrigerator compartment return air passage 42 to cool the vegetable compartment 24. Become.

  When cold air flows into the vegetable compartment 24 from the vegetable compartment discharge port 45, it passes mainly between the lid 66 and the second partition wall 34 and is on the near side of the door 62 of the upper storage container 65. Enter the front portion of the lower storage container 64 from the portion. Further, the cold air flowing in the vegetable compartment is sucked in from the vegetable compartment suction port 46 located at the most downstream side, and merges with the refrigerator compartment return air passage 42.

  Further, since a part of the cold air that flows into the vegetable chamber 24 from the vegetable chamber discharge port 45 has a characteristic that the cold air flows downward, it is discharged downward along the wall of the cooling duct 29 and cooled. The wind direction is changed by the wind direction ribs 68 formed integrally with the duct 29 and provided on the left and right sides of the mist spraying means 67, so that the cool air flows generally forward without going downward. As described above, the wind direction rib 68 is located at the same height or above the rear upper end of the lower storage container 64. The inside of the lower storage container 64 enters the lower storage container 64 and cools the stored food inside. However, this flow is a part, and the cooling of the stored food is mainly performed by the lid 66 and the second partition. This is performed from the portion that passes between the walls 34 and enters the front portion of the lower storage container 64 from the front portion that is on the door 62 side of the upper storage container 65.

  As described above, the airflow direction auxiliary rib 168 as the humidity recovery means is provided on the lower side of the back wall which is the wall surface provided with the mist spraying means 67 so as to be inclined in the left-right direction. Is provided with a wind direction rib 68 which is a humidity introducing means, and the mist spraying means 67 is provided in a space where the high humidity of the back wall surrounded by the wind direction rib 68 and the wind direction auxiliary rib 168 is maintained. Become.

  Further, the wind direction auxiliary rib 168 is inclined in the left-right direction, and the end located on the upper side is the side on which the mist spraying means 67 is provided.

  The wind direction ribs 68 and the wind direction auxiliary ribs 168 are formed integrally with the first cooling duct 29 on the back wall side of the vegetable compartment 24.

  As described above, since the wind direction ribs 68 are continuously provided in the left and right direction of the mist spraying means 67, the cold air in the lower storage container 64 does not leak from the left and right direction of the mist spraying means 67 and the mist spraying means 67. The surrounding area becomes high humidity, and moisture can be efficiently recovered by the mist spraying means 67, and the inside of the lower storage container 64 is sufficiently obtained by returning the fine mist flying into the lower storage container 64 to a fine diffusivity again. It can be humidified to maintain the freshness of vegetables.

  Furthermore, even if there is mist particles that have fallen downward without being sprayed into the storage container in the mist sprayed from the mist spraying means 67, they are continuously provided on the lower side of the mist spraying means 67 on the left and right. The mist is collected by the wind direction auxiliary rib 168 which is the humidity collecting means, and is evaporated from the wind direction auxiliary rib 168 into the air, whereby the moisture is collected by the mist spraying means 67, and again in the lower storage container 64. By returning to, the inside of the lower storage container 64 can be sufficiently humidified to maintain the freshness of the vegetables. Further, the mist particles falling downward from the mist spraying means 67 evaporate by the wind direction auxiliary rib 168 as the humidity collecting means, thereby preventing condensation due to accumulation of water droplets by the mist on the bottom portion of the vegetable compartment. It becomes possible.

  Further, the wind direction auxiliary rib 168 is inclined in the left-right direction, and the end located on the upper side is the side on which the mist spraying means 67 is provided, so it falls from the mist spraying means 67 and wind direction auxiliary rib 168. Even when water droplets accumulate on the top, evaporation can be performed while sliding down a long path along this inclination, and the water droplets on the wind direction auxiliary rib 168 can be evaporated more reliably.

  From the food stored in the lower storage container 64, moisture evaporates as time passes from the time of charging. At this time, the air containing the evaporated water flows out of the storage container from the cold air outflow section defined by the recess 69 and the bottom surface of the upper storage container 65 along the flow of the cold air flowing into the lower storage container 64. The mist spraying means 67 arranged in the vicinity is reached. The inside of the mist spraying means 67 is cooled by the air passage 41 to be lower than the ambient temperature, and moisture in the air is condensed inside the mist spraying means 67. The condensed water is sprayed in the form of a mist from the cold air outflow portion partitioned by the recess 69 and the bottom surface of the upper storage container 65. As a result, the transpiration water from the stored food is returned to the stored food itself again by the mist spraying means 67.

  Further, the vegetable room suction port 46 located at the most downstream side of the cold air flowing through the vegetable room joins the return air passage 42 for the refrigerated room. As can be seen from these series of operations, the vegetable compartment 24 is cooled by using the return cold air from the refrigerator compartment 21. At this time, the return air passage 42 for the refrigerator compartment that communicates with the vegetable compartment suction port 46, which is the downstream side from which the cold air in the vegetable compartment flows out, generally joins the cold air passage on the downstream side of the other storage compartment. For example, the downstream air path of the storage room in the freezing temperature zone has a higher flow rate due to the fact that more low-temperature cold air always flows than the downstream air path of the storage room in the refrigeration temperature zone, and the vegetable of the present embodiment Although cold air in a storage room having a refrigerated temperature zone such as a room may be pulled, the flow of cold air on the back side is made to be a double of the wind direction rib 68 and the wind direction auxiliary rib 69 as in the present embodiment. Since it is physically blocked by the ribs, it is possible to prevent the humidity from decreasing due to the cold air on the back side being pulled from the vegetable room suction port 46.

  That is, even when the vegetable room suction port 46, which is the downstream side from which the cold air flows out of the vegetable room, joins the downstream air path of the storage room in the freezing temperature zone that is lower than the vegetable room, for example, It is possible to prevent a large amount of cold air located above the side wind direction auxiliary rib 69 from flowing out from the vegetable room suction port 46, and the cold air located above the air direction auxiliary rib 69 can maintain high humidity. Therefore, the surroundings of the mist spraying means 67 arranged on the back side become an atmosphere of high humidity, and the mist spraying means 67 can create an environment in which moisture in the air is easily condensed.

  In the present embodiment, it is assumed that the wind direction ribs 68 that are the humidity introduction means are provided continuously in the left-right direction of the mist spraying means 67. However, for example, a notch portion is provided only in a part of the wind direction ribs 68. Especially when cold air does not flow from the discharge port 45 for the vegetable room, the side surface of the storage room is in contact with the outside air around the refrigerator via the heat insulating material, so that the side surface is more side than the internal side of the storage room. As the temperature tends to be higher on the side, rising airflow is generated around the side walls, the rear wall, and the vertical wall of the front door, so that high humidity cold air tends to flow upward. In the wall surface provided with the spraying means 67, the space above the wind direction rib 68 may have a higher humidity than the space defined by the wind direction rib 68 and the wind direction auxiliary rib 69. Rib 68 It can be made to flow into a space defined by the wind direction rib 68 and the wind direction auxiliary rib 69 from a notch portion provided in a part, and the space defined by the wind direction rib 68 and the wind direction auxiliary rib 69 is cold air of high humidity. Stays and collects in the vicinity of the mist spraying means 67, so that the mist spraying means 67 can easily collect moisture.

  In addition, when the cutout portion is provided only in a part of the wind direction rib 68 as described above, it is more desirable to provide it at a place other than directly below the vegetable room discharge port 45 from which the cold air flows from the outside of the storage room. Thus, when cold air flows in from the vegetable room discharge port 45, it becomes difficult for the cold air to flow directly into the space defined by the wind direction rib 68 and the wind direction auxiliary rib 69, and the vegetable room discharge port 45. In the case where no cool air flows from the wind direction rib 68 as described above, even if the upper side of the wind direction rib is higher than the humidity 68 as described above, the humidity is from the notch provided in a part of the wind direction rib 68 to the wind direction rib 68. And air direction auxiliary ribs 69, and high humidity cold air stays in the space defined by the air direction ribs 68 and the air direction auxiliary ribs 69 and collects in the vicinity of the mist spraying means 67. Runode, easily collected moisture by mist spraying means 67.

  A lid 66 closes the upper opening of the upper storage container 65 so that the stored food is directly exposed to cold air and prevented from drying. Also, in the space in the front-rear direction of the lower storage container 64 and the upper storage 65, that is, in the space ahead of the lower storage partition 64a, beverages such as PET bottles are generally placed, and cold air is directly applied to this portion. The cooling speed is secured.

  The cool air blown into the switching chamber 22 exchanges heat with the air in the switching chamber 22 and returns to the cooling chamber 28 through the switching chamber return air passage 55.

  Note that the amount of cool air flowing out of the storage container is small, and does not interfere with the mist spray. Further, it is possible to supply the mist spraying means 67 with water necessary for mist spraying.

  The mist particles sprayed at this time are, for example, about 0.005 μm to 20 μm and very fine. The mist spraying means 67 may be, for example, one that atomizes and sprays water with ultrasonic waves, one that uses an electrostatic atomization system, one that sprays using a pump system, or the like.

  In this way, the cycle of moisture transpiration from the food, condensation, and mist spraying is repeated. According to the present embodiment, the food that is concerned about the cooling speed, such as a PET bottle, is directly discharged cold. The freshness can be maintained by mist spraying for foods that are cooled down and wilted like leafy vegetables.

  At this time, although not shown, heating means such as a heater is provided at least below the wind direction rib 68 which is a humidity introducing means on the back wall inside the vegetable compartment 24, and preferably below the wind direction auxiliary rib 69 which is a humidity collecting means. The mist particles diffused out of the storage container and the transpiration water from the vegetables are not condensed.

  In particular, even when the mist particles dropped downward from the mist spraying means 67 are retained by the wind direction auxiliary rib 168 as the humidity recovery means and become water droplets, the water droplets are evaporated by the heating means provided on the back wall. In addition, it is possible to prevent dew condensation due to accumulation of water droplets due to mist on the bottom of the vegetable room, and at the same time to flow high-humidity air toward the mist spraying means 67 disposed above the wind direction auxiliary rib 168, The surroundings of the mist spraying means 67 are in a high humidity atmosphere, and the mist spraying means 67 can create an environment in which moisture in the air is likely to condense.

  The air circulation hole 71 of the upper storage container 65 plays a role of preventing excessive dew condensation in the upper storage container 65.

  In addition, if the attachment part of the mist spraying means 67 of the 1st cooling duct 29 is set to wall thickness thinner than the circumference | surroundings, the mist spraying means 67 can be cooled more locally.

  In addition, the second partition wall lower plate 36 functions as a cooling plate and cools the inside of the storage container. However, the second partition wall lower plate 36 is configured to be larger than the upper storage container 65 and is formed of a PET bottle or the like. Since there is no obstacle between the container and the beverage, it is possible to cool a beverage such as a PET bottle relatively quickly.

  As described above, in the present embodiment, the refrigerator main body 1 having storage rooms such as the refrigerating room 21, the switching room 22, the ice making room 23, the vegetable room 24, the freezing room 25, and the storage room (vegetable room 24) A door 62 that closes the front opening, a plurality of storage containers (a lower storage container 64 and an upper storage container 65) that are provided in the storage room (vegetable room 24) and store food and are arranged one above the other. A cooler 30 for generating cool air for cooling the inside of the room (vegetable room 24, etc.), a cold air outlet (vegetable room outlet 45) for discharging cold air into the storage room (vegetable room 24), and a storage room (vegetable) A cool air suction port (vegetable chamber suction port 46) for returning the cool air cooled in the chamber 24) to the cooler 30, and a mist spraying means 67 for spraying mist into the storage container (mainly the lower storage container 64); Cool air from the cold air outlet (vegetable room outlet 45) is stored in the storage container ( The humidity introducing means 68 is introduced into the stage storage container 64 and the upper stage storage container 65), and the humidity introduction means 68 is continuously arranged on the side of the mist spraying means 67. The cold air introduced into the lower storage container 64 and the upper storage container 65 is circulated in the storage container (lower storage container 64 and upper storage container 65), and the moisture in the storage containers (lower storage container 64 and upper storage container 65) is circulated. Can be transported to the vicinity of the mist spraying means 67, and moisture is collected by the mist spraying means 67 and returned again into the storage container (lower storage container 64, upper storage container 65), whereby the storage container (lower storage container 64, The inside of the upper storage container 65) can be sufficiently humidified to maintain the freshness of the vegetables.

  In the present embodiment, the storage container is composed of the upper storage container 65 and the lower storage container 64, and the gap between the upper storage container 65 and the lower storage container 64 is widened in the vicinity of the mist spraying means 67. Therefore, moisture from the storage containers (lower storage container 64, upper storage container 65) can be efficiently collected in the vicinity of the mist spraying means 67, and condensation can be collected by the mist spraying means 67.

  Moreover, in this Embodiment, it is provided in the storage room (vegetable room 24), and is provided with a cold air outlet (vegetable room outlet 45) and a cold air inlet (vegetable room inlet 46). In the cooling duct 29, the humidity introducing means is constituted by wind direction ribs 68 formed integrally with the first cooling duct 29, and the wind direction ribs 68 are used to store the storage containers (lower storage container 64, upper The flow of the cold air flowing out from the storage container 65) can be changed to facilitate the introduction of the high-humidity cold air in the vicinity of the mist spraying means 67.

  Moreover, in this Embodiment, the mist spraying means 67 is arrange | positioned rather than the center of the left-right direction of the vegetable compartment 24 at the suction inlet 46 side for vegetable compartments.

  Thus, by disposing the mist spraying means 67 on the side of the vegetable room suction port 46 where the humidity becomes higher in the left-right direction, moisture contained in the cold air can be efficiently recovered and condensed on the mist spraying means 67. Therefore, the inside of the storage container can be sufficiently humidified with fine mist to maintain the freshness of the vegetables.

  In particular, when the damper located upstream on the cold air flow path of the vegetable room discharge port 45 that allows cold air to flow into the vegetable room 24, which is a storage room equipped with an atomizer, is closed, that is, the vegetable room discharge. When there is no inflow of cold air from the outlet 45, the downstream side of the vegetable room suction port 46, which is the downstream side of the cold air in the vegetable room 24, communicates with the downstream side of the air passage. Even if there is no inflow of cold air from the discharge outlet 45, a flow of cold air is generated from the inside of the vegetable compartment 24 to the suction inlet 46 for the vegetable compartment, although it is slight. If there is a rib, the amount of cool air flowing is reduced, but a similar flow occurs. Therefore, even in this state, the vegetable room suction port 46 side is in a higher humidity atmosphere than the center of the vegetable room 24 in the left-right direction, and an environment in which condensation is more likely to occur near the mist spraying means 67 is achieved. By disposing the mist spraying means 67 closer to the vegetable room suction port 46 than the center in the left-right direction, moisture contained in the cold air can be efficiently recovered and condensed in the mist spraying means 67, so that the inside of the storage container Can be sufficiently humidified with a fine mist to maintain the freshness of vegetables.

  Further, the wind direction auxiliary rib 168 is inclined in the left-right direction, and the end located on the upper side is the side on which the mist spraying means 67 is provided, so it falls from the mist spraying means 67 and wind direction auxiliary rib 168. Even when water droplets accumulate on the top, evaporation can be performed while sliding down a long path along this inclination, and the water droplets on the wind direction auxiliary rib 168 can be evaporated more reliably.

  In the present embodiment, an ultrasonic method is used for the mist spraying means 67, so that a fine mist with a particle diameter of several μm can be generated, and a large amount of spray can be handled. Further, the inside of the storage container can be sufficiently humidified with fine mist, and the freshness of the vegetables can be maintained.

  In the present embodiment, an electrostatic atomization method may be used for the mist spraying means 67. In that case, a fine mist having a particle diameter of several nm to several μm can be generated, and spraying can be performed. By making the mist charged negatively, the adhesion rate to vegetables and the like can be further improved, and the freshness of vegetables can be maintained.

  As described above, the refrigerator according to the present invention can sufficiently humidify the inside of the storage container by efficiently collecting and re-spraying moisture from the stored food, and can maintain the freshness of the stored food. It can be applied not only to household refrigerators, but also to commercial refrigerators, food storage, and cold cars.

Front view of the refrigerator in Embodiment 1 of the present invention The longitudinal cross-sectional view of the refrigerator in Embodiment 1 of this invention The perspective view which shows the storage chamber in the refrigerator of Embodiment 1 of this invention Front view of the refrigerator in Embodiment 2 of the present invention The perspective view which shows the storage chamber in the refrigerator of Embodiment 2 of this invention Side sectional view of a conventional refrigerator Cross-sectional view of main parts showing ultrasonic humidification means of a conventional refrigerator

Explanation of symbols

1 Refrigerator body 21 Refrigerated room (storage room)
22 Switching room (storage room)
23 Ice making room (storage room)
24 Vegetable room (storage room)
25 Freezer room (storage room)
29 First cooling duct (cooling duct)
30 Cooler 45 Discharge port for vegetable room (cold air discharge port)
46 Suction port for vegetable room (cold air suction port)
62 Door 64 Lower storage container (storage container)
64a Lower storage partition 65 Upper storage container (storage container)
67 Mist spraying means 68 Wind direction rib (humidity introducing means)
168 Wind direction auxiliary rib (humidity recovery means)

Claims (7)

  The refrigerator main body includes a storage chamber, a door that closes the front opening of the storage chamber, a storage container provided in the storage chamber, and a mist spraying means for spraying mist in the storage container. The spraying means is a refrigerator provided with moisture collecting means below the mist spraying means while condensing moisture in the air and spraying it in the storage chamber as mist.   The refrigerator according to claim 1, wherein the humidity recovery means is a wind direction auxiliary rib provided so as to protrude from the wall surface in the storage chamber.   The refrigerator according to claim 2, wherein the wind direction auxiliary rib is continuously provided in the left-right direction of the mist spraying means.   The refrigerator according to claim 2 or 3, wherein the wind direction auxiliary rib is provided in a shape inclined in the left-right direction of the mist spraying means.   5. The wind direction rib as a humidity introducing unit is provided at the same height as the mist spraying unit above the wind direction auxiliary rib as the humidity recovery unit or on the upper side from the mist spraying unit. Refrigerator.   The refrigerator according to any one of claims 1 to 5, wherein the mist spraying means uses an ultrasonic method.   The refrigerator according to any one of claims 1 to 5, wherein the mist spraying means uses an electrostatic atomization system.