JP2013029291A - Refrigerator - Google Patents

Abstract

An object of the present invention is to provide a refrigerator capable of improving the sterilization effect in a storage chamber.
A refrigerating room (stored room) for storing stored items, a cooler (11) for generating cold air, and a discharge port for discharging the cold air to the refrigerating room (2) through which the cold air generated by the cooler (11) flows. A cold air passage 32 having openings 73a, 74a, 73b, 74b, 73c, 74c, and a circulation duct 81 for opening the inlets 82a, 82b and outlets 84a, 84b, 84c to circulate the cold air in the refrigerator compartment 2, An ion generator 86 that discharges ions into the circulation duct 81 is provided, and the stored product is cooled by the cold air discharged from the discharge ports 73a, 74a, 73b, 74b, 73c, and 74c, and is circulated through the circulation duct 81. In the refrigerator 1 for sterilizing the inside of the refrigerator compartment 2 containing ions in the cold air, the outlets 84a, 84b, 84c are connected to the outlets 73a, 74a, 73b, 74b, 73c, 74c. It was placed in.
[Selection] Figure 1

Description

  The present invention relates to a refrigerator, and more particularly to a refrigerator provided with an ion generator that generates ions.

  A conventional refrigerator is disclosed in Patent Document 1. This refrigerator has a refrigerator compartment at the top, and a cold air passage is arranged at the back of the refrigerator compartment. The cold air passage extends below the refrigerator compartment, and a cooler and a blower are arranged. A plurality of discharge ports facing the refrigerator compartment are opened in the cold air passage.

  An ion generator is provided in the cold air passage. The ion generator is arranged so that the electrode part for generating ions faces the cold air passage. When the blower is driven, the cold air generated by heat exchange with the cooler is guided upward from the lower part of the refrigerator and circulates in the cold air passage. The cold air flowing through the cold air passage includes ions generated at the electrode portion of the ion generator. Then, cold air containing ions is discharged from the discharge port into the refrigerator compartment. Thereby, cooling and disinfection in a refrigerator compartment are performed.

JP 2003-14365 A (page 4, FIGS. 1 and 2)

  However, according to the conventional refrigerator, the cold air containing the ions discharged from the discharge port into the refrigeration chamber also moves away from the blower as it moves away from the discharge port, so the wind speed decreases. For this reason, it becomes difficult for ions to reach as the distance from the discharge port increases. Therefore, there is a problem that ions are not sufficiently distributed in the refrigerator compartment and the sterilization effect is lowered.

  An object of this invention is to provide the refrigerator which can fully disperse ion in a storage chamber and can improve the disinfection effect.

  In order to achieve the above object, the present invention provides a storage chamber for storing a stored product, a cooler for generating cold air, and a discharge for discharging the cold air through the cool air generated by the cooler. A cooling air passage having an outlet, a circulation duct that opens the inlet and outlet and circulates the cold air in the storage chamber, and an ion generator that discharges ions into the circulation duct; In the refrigerator that cools the stored items with the cool air and disinfects the storage chamber by containing ions in the cool air circulating through the circulation duct, the outlet is arranged in the vicinity of the discharge port. It is said.

  According to this configuration, the cool air generated by the cooler is discharged from the discharge port to the storage chamber after flowing through the cool air passage. Thereby, the storage chamber is cooled. In addition, the cool air in the storage chamber flows into the circulation duct through the inflow port. The cold air flowing through the circulation duct contains ions generated by the ion generator. Cold air containing ions flows out from the outlet into the storage chamber. At this time, since the outflow port is disposed in the vicinity of the discharge port, the cold air flowing out from the outflow port into the storage chamber merges with the cold air discharged from the discharge port into the storage chamber. The storage chamber is sterilized by the diffusion of ions contained in the combined airflow.

  In the refrigerator having the above-described configuration, it is more preferable that the outlet and the outlet are arranged at the same height.

  In the refrigerator configured as described above, preferably, the cold air passage and the circulation duct are disposed adjacent to each other, and the discharge port is disposed at a side end portion on the circulation duct side.

  According to the present invention, in the refrigerator having the above-described configuration, the cold air passage extends in the left and right directions at the back of the storage chamber and extends vertically, and the circulation duct is disposed between the cold air passages branched in the left and right directions. It is preferable that the formation surface of the outlet is inclined to face the circulation duct.

  Further, in the refrigerator having the above-described configuration, the circulation duct projects forward with respect to the front surface of the cold air passage, the outlet port opens at a central portion in the left-right direction, and both end portions in the left-right direction are formed on inclined surfaces. It is preferred that

  According to the present invention, since the outlet is arranged in the vicinity of the discharge port, the cold air containing ions flowing out from the outlet into the storage chamber merges with the cold air discharged from the discharge port into the storage chamber, and the wind speed increases. Thereby, the reach | attainment distance of ion becomes long and ion spreads enough in a storage chamber. Therefore, the sterilization effect in the storage chamber can be improved.

The front view which shows the refrigerator of embodiment of this invention 1 is a right side cross-sectional view taken along line AA in FIG. 1 is a right side cross-sectional view taken along line BB in FIG. Sectional view along line CC in FIG. Side surface sectional drawing which shows the principal part of the refrigerator of embodiment of this invention

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a refrigerator according to an embodiment of the present invention. 2 is a right side cross-sectional view taken along the line AA in FIG. 1, and FIG. 3 is a right side cross-sectional view taken along the line BB in FIG. The refrigerator 1 is provided with a refrigerator compartment 2 at the top. Below the refrigerator compartment 2, a first freezer compartment 3 and an ice making compartment 4 are arranged side by side. A second freezer compartment 6 is arranged below the first freezer compartment 3 and the ice making chamber 4, and a vegetable compartment 5 is arranged below the second freezer compartment 6.

  The refrigerator compartment 2 is opened and closed by a rotating door 2a, and the stored items are refrigerated at a refrigerator temperature. The vegetable compartment 5 is opened and closed by a drawer-type door 5a integrated with the storage case 5b, and the vegetables are cooled and stored at a higher room temperature (about 8 ° C.) than the refrigerator compartment 2. The first freezer compartment 3 is opened and closed by a drawer-type door 3a integrated with the storage case 3b to store the stored items in a frozen state.

  The second freezer compartment 6 is opened and closed by a drawer-type door 6a integrated with the storage case 6b to store the stored items in a frozen state. Since the volume of the second freezer compartment 6 is larger than that of the first freezer compartment 3, it is possible to store more stored items in a frozen state. The ice making chamber 4 is opened and closed by a door 4a integrated with the ice storage container 4b, and communicates with the first freezing chamber 3 and the second freezing chamber 6 to make ice. The ice making room 4, the first freezing room 3 and the second freezing room 6 are maintained below the freezing point.

  In the lower part of the refrigerator compartment 2, a chilled chamber 21, an accessory storage chamber 102, and a water tank chamber 103, which are isolated chambers, are arranged side by side. The chilled chamber 21 is maintained, for example, in a chilled temperature range (about 0 ° C.), which is a temperature range lower than that in the refrigerator compartment 2. An ice greenhouse maintained at an ice temperature (about −3 ° C.) may be provided instead of the chilled chamber 21. In the water tank chamber 103, a water tank 103a for ice making is detachably stored. The accessory storage chamber 102 is disposed in front of a cold air passage 32, which will be described in detail later, and has an accessory case (not shown) to store accessories such as eggs.

  The refrigerator compartment 2 is provided with three stages of placement shelves 41 for placing stored items on the top and bottom. The mounting shelf 41 is supported by the rail 41a so that it can be pulled out. Thereby, the user can remove the mounting shelf 41 easily. Therefore, the storage space can be varied, and the inside of the refrigerator compartment 2 and the mounting shelf 41 can be easily cleaned. In addition, the mounting shelf 41 may be provided in one or two stages, or four or more stages.

  A plurality of storage pockets 42 are provided inside the door 2 of the refrigerator compartment 2. Three storage pockets 42 are provided at the top and bottom. The first storage pocket 42 from the top is provided below the first stage mounting shelf 41 from the top, and the second storage pocket 42 from the top is below the second stage mounting shelf 41 from the top. Provided. The third storage pocket 42 from the top has a larger volume than the first and second storage pockets 42 from the top, and is provided below the mounting shelf 41 at the third level from the top. One or two storage pockets 42 may be provided, or four or more storage pockets 42 may be provided.

  A machine room 50 is provided behind the vegetable room 5. A compressor 57 is disposed in the machine room 50. A condenser, an expander (all not shown) and a cooler 11 are connected to the compressor 57 in order, and a refrigerant such as isobutane is circulated by driving the compressor 57 to operate a refrigeration cycle. Thereby, the cooler 11 becomes the low temperature side of the refrigeration cycle.

  A cool air passage 31 partitioned by a back plate 6 c is provided behind the second freezer compartment 6. As will be described in detail later, the cold air passage 31 communicates with the cold air passage 32 disposed behind the refrigerator compartment 2 via the refrigerator compartment damper 20.

  The cooler 11 on the low temperature side of the refrigeration cycle exchanges heat with the air flowing through the cold air passage 31 to generate cold air. The cooler 11 is disposed on the back side of the second freezer compartment 6. Thereby, the cold heat of the cooler 11 is discharged | emitted to the 2nd freezer compartment 6 side via the back plate 6c. Accordingly, the second freezer compartment 6 is efficiently cooled, and the cooling efficiency can be improved.

  In addition, since the cooler 11 becomes low temperature by the drive of the compressor 57, it forms frost. For this reason, the defrosting operation is performed at a predetermined cycle. Specifically, the cooler 11 is defrosted by a defrost heater (not shown) provided below the cooler 11. A drain receiver (not shown) that receives water from the defrost is provided below the defrost heater. A drain pipe (not shown) is led out to the drain receiver, and drain water is guided to an evaporating dish (not shown) arranged in the machine chamber 50 through the drain pipe.

  A freezer compartment blower 12 composed of an axial fan is disposed in the cold air passage 31 with the rotational axis direction horizontal. The cold air passage 31 is provided with an opening (not shown) that faces the ice making chamber 4 in front of the freezer blower 12, and discharge that faces the storage case 3 b of the first freezer chamber 3 and the storage case 6 b of the second freezer chamber 6. An outlet (not shown) is provided. Thereby, when the freezer compartment fan 12 is driven, cold air is sent to the ice making chamber 4, the first freezer compartment 3, and the second freezer compartment 6. A return port (not shown) that opens to the front of the cooler 11 and returns cool air to the cooler 11 is provided at the lower part of the second freezer compartment 6.

  The refrigerator compartment damper 20 and the freezer compartment fan 12 are arranged substantially side by side in the vertical direction. In other words, the refrigerator compartment damper 20 and the freezer compartment fan 12 are arranged so as to overlap in the planar projection. Thereby, while the width | variety of the left-right direction of the refrigerator 1 can be narrowed, the cool air passages 31 and 32 can be shortened and volume efficiency and ventilation efficiency can be improved.

  A cold air passage 32 and a circulation duct 81 are provided behind the refrigerator compartment 2. In FIG. 1, the front shape of the circulation duct 81 is indicated by a solid line D1, and the front shape of the cold air passage 32 is indicated by a broken line D2. First, the cold air passage 32 will be described, and then the circulation duct 81 will be described.

  The cold air immediately after flowing into the cold air passage 32 from the refrigerator compartment damper 20 is extremely low temperature (about −20 ° C. to −18 ° C.). For this reason, the heat insulating material 107 is arranged on the inner side of the lower part of the cold air passage 32. Thereby, dew condensation on the back wall surface of the refrigerator compartment 2 can be prevented.

  The cold air passage 32 extends upward from the refrigerator compartment damper 20. The cold air passage 32 branches right and left at the center in the vertical direction of the refrigerator compartment 2. That is, the cold air passage 32 is divided into a right passage 32a and a left passage 32b above the central portion in the vertical direction of the refrigerator compartment 2. A cold room blower 23 is disposed in the cold air passage 32 before the branch on the downstream side of the cold room damper 20. The refrigerating room blower 23 is composed of an axial fan, and the cold air is circulated through the cold passage 32 by opening the refrigerating room damper 20 and driving the refrigerating room blower 23.

  The right passage 32a is provided with a plurality of discharge ports 73a, 73b, 73c for discharging cold air to the refrigerator compartment 2 in order from the bottom. The discharge ports 73a, 73b, and 73c open to the left end and face forward. That is, the discharge ports 73a, 73b, and 73c are arranged at the side end portion on the circulation duct 81 side described later. In addition, the discharge port 73c may open to the upper end of the right passage 32a so as to face upward.

  The left passage 32b is provided with a plurality of discharge ports 74a, 74b, 74c for discharging cold air to the refrigerator compartment 2 in order from the bottom. The discharge ports 74a, 74b, and 74c are opened to the front at the right end. That is, the discharge ports 74a, 74b, and 74c are arranged at the side end portion on the circulation duct 81 side described later. In addition, the discharge port 74c may open to the upper end of the left passage 32b so as to face upward.

  The discharge ports 73c and 74c are provided above the first stage mounting shelf 41 from the top. The discharge ports 73b and 74b are provided between the first stage mounting shelf 41 and the second stage mounting shelf 41 from the top. The discharge ports 73a and 74a are provided between the second-stage mounting shelf 41 and the third-stage mounting shelf 41 from the top, and are provided in the center in the vertical direction of the refrigerator compartment 2.

  The opening areas of the lower discharge ports 73a, 73b, 74a, and 74b are smaller than the opening areas of the upper discharge ports 73c and 74c. Thereby, the amount of cold air discharged from the lower discharge ports 73a, 73b, 74a, 74b is limited. Therefore, it is possible to guide the cold air to the upper part of the right passage 32a and the upper part of the left passage 32b.

  A chilled chamber discharge port (not shown) for discharging cold air to the chilled chamber 21 is provided at the lower end of the cold air passage 32. Cold air immediately after flowing into the cold air passage 32 from the refrigerator compartment damper 20 is discharged from the chilled chamber discharge port to the chilled chamber 21. Thereby, the chilled chamber 21 can be maintained at a low temperature.

  On the back surface of the chilled chamber 21, a return port 2d through which cold air from the refrigerator compartment 2 flows is provided. From the return port 2d, a communication path (not shown) that connects the refrigerator compartment 2 and the vegetable compartment 5 is led out. The communication path is arranged on the side of the cooler 11, and a vegetable room inlet (not shown) that opens to the vegetable room 5 is provided at the lower end. In the upper part of the vegetable compartment 5, there is provided a return passage (not shown) that opens to the front of the vegetable compartment 5 and the front of the cold air passage 31 and returns the cold air below the cooler 11.

  A circulation duct 81 is arranged on the back side of the refrigerator compartment 2 so as to extend vertically along the back wall surface of the refrigerator compartment 2. The circulation duct 81 is disposed between the right passage 32a and the left passage 32b, and opens inflow ports 82a and 82b and outflow ports 84a, 84b, and 84c, which will be described later, and circulates cold air in the refrigerator compartment 2.

  The circulation duct 81 has a vertical duct 81a and a horizontal duct 81b. The vertical duct 81 a is formed to extend upward from the central portion in the vertical direction of the refrigerator compartment 2 and is formed in the central portion in the horizontal direction of the refrigerator compartment 2. The horizontal duct 81b is formed to extend horizontally from the lower part of the vertical duct 81a toward both sides of the refrigerator compartment 2. The vertical duct 81a is disposed adjacent to the right passage 32a and the left passage 32b. Further, the lateral duct 81b is disposed adjacent to the rear of the right passage 32a and the left passage 32b.

  The front surface of the vertical duct 81 a of the circulation duct 81 is covered with the front panel 70. FIG. 4 shows a cross-sectional view along the line CC in FIG. In FIG. 4, a part of the right passage 32a and the left passage 32b is omitted. The front surfaces of the right passage 32 a and the left passage 32 b are covered with a flat panel 71 formed integrally with the front panel 70. The vertical duct 81a is separated from the right passage 32a and the left passage 32b by a rib 70b.

  The front panel 70 is provided so as to protrude forward with respect to the flat panel 71. That is, the circulation duct 81 projects forward with respect to the front surface of the cold air passage 32 (the right passage 32a and the left passage 32b). Thereby, the flow path of the cool air in the circulation duct 81 can be sufficiently ensured without forming the cool air passage 32 thin and widening the width of the refrigerator 1 in the depth direction. The front panel 70 and the flat panel 71 may be formed by separate members.

  A plurality of outlets 84a (first outlets), 84b (second outlets), 84c (second outlets) facing the refrigerator compartment 2 are opened in order from the bottom in the central portion of the front panel 70 in the left-right direction. Yes. The outflow port 84a is provided at the center of the refrigerator compartment 2 in the vertical direction.

  Both ends in the left-right direction of the front panel 70 are formed on the inclined surface 70a. The inclined surface 70a is formed as a curved surface and is inclined in a horizontal plane. The inclined surface 70a may be a flat surface.

  The outlet 84a is disposed in the vicinity of the discharge ports 73a and 74a, and the outlet 84b is disposed in the vicinity of the discharge ports 73b and 74b. Moreover, the outflow port 84c is arrange | positioned in the vicinity of the discharge ports 73c and 74c. Thus, as will be described in detail later, the cold air that has flowed into the refrigerator compartment 2 from the outlets 84a, 84b, 84c and contained ions is discharged from the outlets 73a, 74a, 73b, 74b, 73c, 74c into the refrigerator compartment 2. It merges with the cool air discharged inside.

  It is more desirable to arrange the outlet 84a at the same height as the outlets 73a and 74a and the outlet 84b at the same height as the outlets 73b and 74b. It is more desirable to arrange the outlet 84c at the same height as the outlets 73c and 74c. As a result, the cold air that has flowed into the refrigerator compartment 2 from the outlets 84a, 84b, 84c and contains ions is cooled with the cold air discharged into the refrigerator compartment 2 from the discharge ports 73a, 74a, 73b, 74b, 73c, 74c. It becomes easier to join.

  Further, the formation surfaces of the discharge ports 73 a, 74 a, 73 b, 74 b, 73 c, 74 c are inclined to face the circulation duct 81. As a result, the cold air discharged from the discharge ports 73a, 74a, 73b, 74b, 73c, 74c into the refrigerator compartment 2 and the cold air containing ions that have flowed into the refrigerator compartment 2 from the outlets 84a, 84b, 84c. It becomes easier to join.

  In FIG. 1, inlets 82 a and 82 b facing the refrigerator compartment 2 are opened in the horizontal duct 81 b. The inflow port 82a opens to the side at the right end of the horizontal duct 81b, and the inflow port 82b opens to the side at the left end of the horizontal duct 81b. Thereby, the inflow ports 82a and 82b are arranged in the vicinity of both end portions in the left-right direction of the refrigerator compartment 2. Further, the inflow ports 82a and 82b are arranged between the second stage mounting shelf 41 and the third stage mounting shelf 41 from the top. The cold air in the refrigerator compartment 2 is sucked into the horizontal duct 81b through the inlets 82a and 82b by driving the circulation fan 85 described later.

  A circulation fan 85 that circulates the cold air in the refrigerator compartment 2 is disposed in the circulation duct 81. The circulation fan 85 is disposed at a connecting portion between the vertical duct 81a and the horizontal duct 81b (see FIG. 1). Thereby, the cold air sucked from the inlets 82a and 82b and flowing through the horizontal duct 81b can be smoothly sent into the vertical duct 81a.

  FIG. 5 is an enlarged side sectional view of a main part of the refrigerator 1. An arrow S3 indicates an air flow generated by driving the circulation fan 85. The circulation fan 85 is disposed in the vicinity of the upstream side of the outflow port 84a, and is disposed below the outflow ports 84b and 84c. The circulation fan 85 is constituted by an axial fan, and is disposed so as to be inclined with the exhaust side facing upward. Thereby, the circulation fan 85 can send out cool air smoothly toward the outflow port 84a, 84b, 84c.

  An ion generator 86 is arranged in the vertical duct 81 a of the circulation duct 81. The ion generator 86 is installed in the vicinity of the circulation fan 85, and an ion generation part 86a having two electrodes (not shown) is arranged between the circulation fan 85 and the outlet 84a so as to face downward. . Thereby, the ion generator 86 is arrange | positioned in the center part of the up-down direction of the refrigerator compartment 2. As shown in FIG. Therefore, it is not necessary to provide the ion generator 86 on the ceiling portion of the refrigerator compartment 2, and a stored item with a high height (for example, a long can of beer) is left standing on the first shelf 41 from above. Can be stored refrigerated.

A voltage having an AC waveform or an impulse waveform is applied to the two electrodes of the ion generator 86. A positive voltage is applied to one of the electrodes, and ions generated by ionization combine with moisture in the air to generate positive cluster ions having a charge mainly composed of H ⁺ (H ₂ O) m. A negative voltage is applied to the other electrode, and ions generated by ionization combine with moisture in the air to generate negatively clustered ions mainly composed of O ₂ ⁻ (H ₂ O) n. Here, m and n are arbitrary natural numbers. H ⁺ (H ₂ O) m and O ₂ ⁻ (H ₂ O) n agglomerate and surround the surface of airborne bacteria, stored bacteria, and odor components.

Then, as shown in the formulas (1) to (3), the active species [.OH] (hydroxyl radical) and H ₂ O ₂ (hydrogen peroxide) are aggregated and formed on the surface of the microorganism or the like by collision. Destroy airborne bacteria, adherent bacteria and odor components. Here, m ′ and n ′ are arbitrary natural numbers. Therefore, sterilization and odor removal in the refrigerating chamber 2 can be performed by generating positive ions and negative ions and flowing into the refrigerating chamber 2 from the outlets 84a, 84b, 84c.

H ⁺ (H ₂ O) m + O ₂ ⁻ (H ₂ O) n → OH + 1 / 2O ₂ + (m + n) H ₂ O (1)
_{^{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ 2 OH + O ₂ + (m + m ′ + n + n ′) H ₂ O (2)
_{^{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ H ₂ O ₂ + O ₂ + (m + m ′ + n + n ′) H ₂ O (3)

  In the refrigerator 1 configured as described above, when the freezer blower 12 is driven, the cold air generated by the cooler 11 is discharged to the ice making chamber 4 and the first freezer 3 and the first freezer via the discharge port (not shown). 2 It is discharged into the freezer compartment 6. The cold air discharged into the ice making chamber 4 circulates through the ice making chamber 4, mixes with the cold air discharged into the first freezing chamber 3 and the second freezing chamber 6, and flows through the first freezing chamber 3 and the second freezing chamber 6. . The cold air flowing through the ice making chamber 4, the first freezing chamber 3, and the second freezing chamber 6 flows out from the freezer return port (not shown) and returns to the cooler 11. Thereby, the inside of the ice making chamber 4, the 1st freezer compartment 3, and the 2nd freezer compartment 6 is cooled.

  When the refrigerator compartment damper 20 is opened and the refrigerator compartment fan 23 is driven, the cold air branched off on the exhaust side of the freezer compartment fan 12 flows through the cold air passage 32. The cold air flowing through the cold air passage 32 branches into a right passage 32a and a left passage 32b. A part of the cold air passing through the right passage 32a is discharged to the chilled chamber 21 through a chilled chamber discharge port (not shown). The cold air flowing through the chilled chamber 21 flows out from the return port 2d.

  Further, the cold air flowing through the right passage 32a and the left passage 32b is discharged into the refrigerator compartment 2 through the discharge ports 73a to 73c and 74a to 74c as shown by an arrow S1 (see FIGS. 1, 3, and 4). . At this time, since the wind speed of the refrigerating room blower 23 is lower than the wind speed of the circulation fan 85, it is possible to reduce drying of stored items due to the cold air discharged into the refrigerating room 2 from the discharge ports 73a to 73c and 74a to 74c.

  The cool air flowing forward from the discharge ports 73 a to 73 c and 74 a to 74 c cools the stored items on the respective mounting shelves 41 and descends in front of the respective mounting shelves 41. And it is guide | induced to the inflow ports 82a and 82b and the return port 2d. A part of the cool air led to the return port 2 d cools the accessory storage chamber 102 and the water tank chamber 103.

  The cold air flowing out of the refrigerator compartment 2 through the return port 2d passes through the communication path (not shown) and flows into the vegetable compartment 5 from the vegetable compartment inlet (not shown). At this time, the vegetable compartment inlet is provided above the vegetable compartment 2. For this reason, a communicating path is formed short and the pressure loss of a cold air current can be made small. The cold air flowing into the vegetable compartment 5 flows through the vegetable compartment 5 and returns to the cooler 11 via a return passage (not shown). Thereby, the inside of the refrigerator compartment 2 and the vegetable compartment 5 is cooled. When the set temperature is reached, the refrigerator compartment damper 20 is closed and the refrigerator compartment fan 23 is stopped.

  The cold air discharged from the cold air passage 32 to the refrigerating chamber 2 is mixed with the damp cold air in the refrigerating chamber 2. When the circulation fan 85 and the ion generator 86 are driven, cold air containing moisture is sucked into the horizontal duct 81b of the circulation duct 81 from the inlets 82a and 82b as shown by an arrow S2 (see FIG. 1). The cold air sucked into the horizontal duct 81b rises in the vertical duct 81a.

  The cold air flowing through the vertical duct 81 a of the circulation duct 81 includes ions generated by the ion generator 86. Cold air containing ions flows out from the outlets 84a, 84b, 84c of the circulation duct 81 into the refrigerator compartment 2 as shown by an arrow S3 (see FIGS. 1, 2, and 4). At this time, cool air flows out between the second and third stage mounting shelves 41 from the top through the outlet 84a. Thereby, the cold air containing ions descends in front of the mounting shelf 41 after flowing through the upper surface of the third mounting shelf 41 from the top, and cools and disinfects the inside of the third storage pocket 42 from the top. To do.

  Further, cold air containing ions flows out between the first and second stage mounting shelves 41 from above through the outlet 84b. As a result, the cold air containing ions flows down the front surface of the mounting shelf 41 after flowing through the upper surface of the mounting shelf 41 in the second stage from the top, and cools and disinfects the inside of the second storage pocket 42 from the top. To do.

  Further, cold air containing ions flows out from the top toward the top of the first stage mounting shelf 41 through the outlet 84c. As a result, the cold air containing ions flows down the front surface of the mounting shelf 41 after passing through the upper surface of the first mounting shelf 41 from the top, and cools and disinfects the inside of the first storage pocket 42 from the top. To do.

  At this time, when the refrigerating room blower 23 is driven, the cold air flowing out from the outlets 84a, 84b, 84c into the refrigerating room 2 and containing ions is refrigerated from the discharge ports 73a, 74a, 73b, 74b, 73c, 74c. The cold air discharged into the chamber 2 merges. Thereby, a wind speed increases and the reach | attainment distance of the cold air containing an ion can be lengthened. Similarly, the reach distance of the cold air discharged into the refrigerator compartment 2 from the discharge ports 73a, 74a, 73b, 74b, 73c, 74c can be increased. Therefore, the inside of each storage pocket 42 can be surely sterilized and cooled.

  Moreover, the cold air discharged into the refrigerator compartment 2 from the discharge ports 73a, 74a, 73b, 74b, 73c, 74c is directed to the outlets 84a, 84b, 84c along the inclined surface 70a by the Coanda effect (see FIG. 4). Thereby, even if the wind speed of the cold air discharged from the discharge ports 73a, 74a, 73b, 74b, 73c, 74c is lower than the wind speed of the cold air in the circulation duct 81, the discharge ports 73a, 74a, 73b, 74b, 73c, The cold air discharged from 74c can flow out into the refrigerating chamber 2 from the outlets 84a, 84b, 84c and can reliably join the cold air containing ions.

  Since the cold air flowing through the circulation duct 81 is the cold air flowing through the refrigerating chamber 2, the moisture is higher than the cold air just generated by the cooler 11 and the cold air flowing through the cold air passage 32. This makes it difficult for ions to cluster and disappear due to bonding with water molecules. Therefore, the inside of the refrigerator compartment 2 can be sterilized reliably.

  The cold air that has flowed into the refrigerator compartment 2 from the outlets 84a, 84b, 84c descends in front of the mounting shelf 41, is guided to the return port 2d, and a part thereof is guided to the inlets 82a, 82b. As a result, the cold air flowing through the refrigerator compartment 2 is circulated by the circulation duct 81 without passing through the cooler 11.

  Cold air containing ions flows out of the refrigerator compartment 2 through the return port 2d. After that, it passes through the communication passage and flows into the vegetable compartment 5 from the vegetable compartment inlet. The cold air that has flowed into the vegetable compartment 5 flows through the vegetable compartment 5 and returns to the cooler 11 through the return passage. Thereby, the inside of the vegetable compartment 5 is sterilized.

  According to the present embodiment, since the outlets 84a, 84b, 84c are arranged in the vicinity of the discharge ports 73a, 74a, 73b, 74b, 73c, 74c, the outlets 84a, 84b, 84c flow into the refrigerator compartment 2 The cold air containing ions merges with the cold air discharged into the refrigerator compartment 2 from the discharge ports 73a, 74a, 73b, 74b, 73c, and 74c. Thereby, the wind speed increases and the reach distance of the cold air containing the ions can be increased, and the ions can be sufficiently distributed in the refrigerator compartment 2. Therefore, the sterilization effect in the refrigerator compartment 2 can be improved.

  Similarly, the reach distance of the cold air discharged from the discharge ports 73a, 74a, 73b, 74b, 73c, 74c into the refrigerator compartment 2 can be increased. Therefore, cold air can be sufficiently distributed in the refrigerator compartment 2, and the inside of the refrigerator compartment 2 can be sufficiently cooled.

  In addition, since the outlets 84a, 84b, 84c and the outlets 73a, 74a, 73b, 74b, 73c, 74c are arranged at the same height, the ions flow out into the refrigerator compartment 2 from the outlets 84a, 84b, 84c. The cold air containing the air easily merges with the cold air discharged into the refrigerator compartment 2 from the discharge ports 73a, 74a, 73b, 74b, 73c, and 74c. Therefore, ions can be reliably distributed in the refrigerator compartment 2, and the sterilization effect in the refrigerator compartment 2 can be further improved.

  Further, the cold air passage 32 (the right passage 32a and the left passage 32b) and the circulation duct 81 are disposed adjacent to each other, and the discharge ports 73a, 74a, 73b, 74b, 73c, and 74c are disposed at the side end portion on the circulation duct 81 side. doing. As a result, space can be saved, and cold air that flows out into the refrigerating chamber 2 from the outlets 84a, 84b, and 84c and contains ions enters the refrigerating chamber 2 from the discharge ports 73a, 74a, 73b, 74b, 73c, and 74c. Can easily merge with the discharged cool air.

  The cold air passage 32 branches left and right on the back of the refrigerator compartment 2 (storage chamber) and extends vertically, and the circulation duct 81 is disposed between the right passage 32a and the left passage 32b, and the discharge ports 73a, 74a, The formation surfaces of 73b, 74b, 73c, and 74c are inclined to face the circulation duct 81. Thereby, the space between the right passage 32a and the left passage 32b can be effectively used. Further, the cold air that flows out into the refrigerating chamber 2 from the outlets 84a, 84b, 84c and contains ions is more reliable than the cold air discharged into the refrigerating chamber 2 from the discharge ports 73a, 74a, 73b, 74b, 73c, 74c. Can join. Therefore, ions can be more reliably distributed in the refrigerator compartment 2, and the sterilization effect in the refrigerator compartment 2 can be further improved.

  Further, the circulation duct 81 projects forward with respect to the front surface of the cold air passage 32 (the right passage 32a and the left passage 32b), and the outlets 84a, 84b, 84c are opened in the center portion in the left-right direction, and both end portions in the left-right direction are formed. It is formed on the inclined surface 70a. Thereby, the flow path of the cool air in the circulation duct 81 can be sufficiently ensured without forming the cool air passage 32 thin and widening the width of the refrigerator 1 in the depth direction. Moreover, since the cold air discharged into the refrigerator compartment 2 from the discharge ports 73a, 74a, 73b, 74b, 73c, 74c flows along the inclined surface 70a, it flows out into the refrigerator compartment 2 from the outlets 84a, 84b, 84c. The cold air can be merged more reliably.

  In this embodiment, the discharge ports 73a, 74a, 73b, 74b, 73c, 74c and the outlets 84a, 84b, 84c are provided on the back side of the refrigerator compartment 2, but may be provided on the side surface side of the refrigerator compartment 2. . Even in this case, the cold air that flows into the refrigerator compartment 2 from the outlets 84a, 84b, 84c and contains ions is the cold air discharged into the refrigerator compartment 2 from the discharge ports 73a, 74a, 73b, 74b, 73c, 74c. Can join. Thereby, the wind speed increases and the reach distance of the cold air containing the ions can be increased, and the ions can be sufficiently distributed in the refrigerator compartment 2. Therefore, the sterilization effect in the refrigerator compartment 2 can be improved.

  ADVANTAGE OF THE INVENTION According to this invention, it can utilize for the refrigerator provided with the ion generator which generate | occur | produces ion.

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Refrigeration room 3 1st freezing room 4 Ice making room 5 Vegetable room 6 2nd freezing room 11 Cooler 12 Freezer room blower 20 Refrigeration room damper 21 Chilled room 31, 32 Cold air passage 32a Right passage 32b Left passage 41 Placement shelf 41a Rail 42 Storage pocket 50 Machine room 57 Compressor 70 Front panel 70a Inclined surface 73a, 73b, 73c, 74a, 74b, 74c Discharge port 81 Circulation duct 81a Vertical duct 81b Horizontal duct 82a, 82b Inlet 84a Outlet (first Outlet)
84b, 84c Outlet (second outlet)
85 Circulating fan 86 Ion generator 86a Ion generator 102 Small article storage room 103 Water tank room

Claims (5)

  A storage chamber for storing the stored material, a cooler for generating cold air, a cold air passage having an outlet for discharging the cold air through which the cold air generated by the cooler flows, and an inflow port; A circulation duct that opens the outlet and circulates the cold air in the storage chamber, and an ion generator that discharges ions into the circulation duct, cools the stored item by the cold air discharged from the discharge port, In the refrigerator for sterilizing the inside of the storage chamber by containing ions in the cold air circulated through the circulation duct, the outlet is disposed in the vicinity of the discharge port.   The refrigerator according to claim 1, wherein the outlet and the outlet are arranged at the same height.   The refrigerator according to claim 1 or 2, wherein the cold air passage and the circulation duct are disposed adjacent to each other, and the discharge port is disposed at a side end portion on the circulation duct side.   The cold air passage branches right and left at the back of the storage chamber and extends vertically, and the circulation duct is disposed between the cold air passages branched left and right, and the discharge port formation surface faces the circulation duct. The refrigerator according to claim 3, wherein the refrigerator is inclined.   5. The circulation duct according to claim 4, wherein the circulation duct protrudes forward with respect to the front surface of the cold air passage, the outlet is opened at a central portion in the left-right direction, and both end portions in the left-right direction are formed on inclined surfaces. The refrigerator described.

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