JP4916891B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator having first and second storage chambers that are insulated and isolated and in which a path of cold air is parallel.

  A conventional refrigerator is disclosed in Patent Document 1. This refrigerator has a temperature switching chamber that switches the room temperature to a desired temperature zone such as freezing, refrigeration, partial, chilled, etc. according to the user's application. The temperature switching chamber is insulated and insulated from the freezer compartment, and a cold air path connected to a cooler that generates cold air is in parallel with the freezer compartment. The cold air generated in the cooler by driving the compressor is sent to the temperature switching chamber and the freezer compartment by the operation of the blower. Thereby, the temperature switching chamber and the freezing chamber are cooled.

  When a high-temperature store is stored in the temperature switching chamber, the coarse heat removal mode can be selected. In the coarse heat removal mode, the air volume and the number of rotations of the compressor are increased, and cool air is sent into the temperature switching chamber, so that the temperature switching chamber can be rapidly cooled. Thereby, pudding, jelly, a hamburger seed, etc. can be rapidly cooled and cooking time can be shortened.

Japanese Patent Laid-Open No. 2002-22335 (pages 4-9, FIG. 1)

  However, according to the refrigerator disclosed in the above-mentioned patent document, there is a problem that the stored material is dried because the cold air is continuously sent by the refrigeration operation after the rough heat removal mode is completed. In particular, when raw vegetables and warm vegetables are subjected to rough heat removal, there is a problem that the taste deteriorates due to drying.

  An object of this invention is to provide the refrigerator which can prevent drying while performing the rough heat removal of a stored matter.

  In order to achieve the above object, a refrigerator according to the present invention includes first and second storage rooms that are insulated and insulated, a compressor that is driven according to the temperature of the first storage room, and a low temperature that is driven by the compressor. A cooler that is maintained, and the cool air generated by the cooler branches into the first and second storage chambers arranged in parallel, and the cool air that has flowed out of the first and second storage chambers merges. Then, in the refrigerator that returns to the cooler, a first damper that opens and closes a path that connects the cooler and the inflow side of the second storage chamber, and a path that connects the cooler and the outflow side of the second storage chamber A second damper that opens and closes the fan, and a blower that takes in and discharges cool air into the second storage chamber when the first and second dampers are opened, and the first and second dampers are driven regardless of the operation of the compressor. The cooling operation is performed to cool the second storage chamber by opening and driving the blower. Together, the second storage compartment by the cooling operation is characterized by the first stop blower that, provided the crude heat-up mode for closing the second damper when drops below a predetermined temperature.

  According to this configuration, the compressor is driven according to the temperature of the first storage chamber to cool the cooler, and the first storage chamber is cooled by the cold air generated by the cooler. Further, the first and second storage chambers can be simultaneously cooled by opening the first and second dampers and driving the blower. When the user selects the coarse heat removal mode, the first and second dampers are opened to drive the blower regardless of whether the compressor is stopped or driven, and the cooling operation of the second storage chamber is performed. When the second storage chamber is lowered to a predetermined temperature, the blower is stopped, the first and second dampers are closed, and the cooling operation is stopped.

  According to the present invention, in the refrigerator configured as described above, the second storage chamber includes a temperature switching chamber that can be switched to a desired indoor temperature. According to this configuration, the room temperature of the second storage chamber can be switched to a desired temperature zone such as refrigeration, refrigeration, partial, chilled, etc. according to the user's selection.

  In the refrigerator having the above-described configuration, the rough heat removal mode can set the predetermined temperature to a plurality of different temperatures. According to this configuration, for example, when the salad bar is set, the cooling operation is stopped by cooling to 0 ° C., and when the warm vegetable refrigeration setting is set, the cooling operation is stopped by cooling to 8 ° C.

  In the refrigerator having the above-described configuration, the present invention is characterized in that the cool air path between the first storage chamber and the cooler is closed during the cooling operation. According to this configuration, when the rough heat removal mode is selected, the supply of cold air to the first storage chamber is stopped, and the supply of cold air to the first storage chamber is resumed by stopping the cooling operation.

  In the refrigerator configured as described above, in the rough heat removal mode, when the blower is stopped, the opening of the door of the second storage chamber is monitored, and the opening of the door causes the second storage chamber to rise above a predetermined temperature. The cooling operation is restarted. According to this configuration, when the temperature of the second storage chamber opens and the temperature rises, the cooling operation is resumed to cool the second storage chamber.

  Further, in the refrigerator having the above-described configuration, the rough heat removal mode notifies a warning when the door of the second storage chamber is opened when the blower is stopped or when the second storage chamber rises above a predetermined temperature, The cooling operation is restarted by a predetermined operation by the user after the warning notification. According to this configuration, a warning is notified when the door of the second storage chamber is opened and the temperature rises. When the user recognizes the warning and performs a predetermined operation, the cooling operation is restarted and the second storage chamber is cooled.

  In the refrigerator configured as described above, the rough heat removal mode is stopped when there is no operation for a predetermined period after the warning, and the compressor is driven according to the temperature of the second storage chamber to cool the second storage chamber. It is characterized by performing a refrigeration mode. According to this configuration, a warning is notified when the door of the second storage chamber is opened and the temperature rises. When a predetermined period elapses after notification, the second storage chamber is switched to the refrigeration mode. In the refrigeration mode, the temperature of the second storage chamber is monitored, the compressor is driven according to the temperature, and the compressor is stopped when the second storage chamber is cooled.

  According to the present invention, when the rough heat removal mode is selected, the second storage chamber performs a cooling operation in which the first and second dampers are opened to drive the blower, and the blower is blown when the second storage chamber falls below a predetermined temperature. Is stopped and the first and second dampers are closed, so that cool air does not continue to hit the stored product after cooling, so that drying of the stored product can be prevented. Therefore, the taste does not drop even if raw heat or warm vegetables are removed. Further, since the cooling operation is performed regardless of the driving of the compressor, the temperature of the first storage chamber is low and the second storage chamber can be quickly cooled even when the compressor is stopped. Furthermore, it is not necessary to wait until an increase in the room temperature is detected as compared with the case where the second storage chamber is set to the refrigeration mode or the like, and the cooling operation can be started quickly.

  Further, according to the present invention, since the second storage chamber is composed of the temperature switching chamber, the stored product can be stored at a desired temperature such as frozen storage or refrigeration storage.

  Further, according to the present invention, the rough heat removal mode can set the predetermined temperature to a plurality of different temperatures, and can be stored at a desired temperature by, for example, salad bar setting or warm vegetable refrigeration setting.

  According to the present invention, since the cool air path between the first storage chamber and the cooler is closed during the cooling operation, the cool air generated by the cooler is guided to the second store chamber to quickly cool the second store chamber. be able to.

  Further, according to the present invention, the cooling operation is resumed when the second storage chamber rises above a predetermined temperature due to the opening of the door of the second storage chamber, so that the stored product after the rough heat removal is maintained at a desired temperature. Can do. Moreover, since it cools only when a door opens, drying of a store can be suppressed.

  Further, according to the present invention, the cooling operation is resumed by the user's operation after a warning that is notified when the door of the second storage chamber is opened or when the second storage chamber rises above a predetermined temperature. The user knows that the process will proceed and the cooling operation is performed again. Therefore, the convenience of the refrigerator is improved.

  Also, according to the present invention, when the operation is not performed for a predetermined period after the warning, the coarse heat removal mode is stopped, and the refrigerator is driven in accordance with the temperature of the second storage chamber to cool the second storage chamber. The second storage chamber is maintained at a predetermined cooling temperature. Therefore, even if the user forgets that the stored item is stored in the second storage chamber, damage to the stored item can be prevented.

  Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are a front view and a right side view showing the refrigerator of the first embodiment. The refrigerator 1 is provided with a refrigerator compartment 2 in the upper stage, and a temperature switching room 3 and an ice making room 4 in the middle stage. A vegetable room 5 and a freezer room 6 are arranged in the lower stage of the refrigerator 1.

  The refrigerating room 2 has a double door and stores stored items in a refrigerator. The temperature switching chamber 3 is provided on the left side of the middle stage, and the room temperature can be switched by the user. The ice making chamber 4 is provided on the right side of the middle stage and performs ice making. The vegetable room 5 is provided on the lower left side and is maintained at a temperature suitable for vegetable storage (about 8 ° C.). The freezer compartment 6 is provided on the lower right side and communicates with the ice making compartment 4 to store the stored items in a frozen state.

  FIG. 3 is a right side sectional view of the refrigerator 1. The freezing compartment 6 and the ice making compartment 4 are provided with a storage case 11 for storing stored items. A similar storage case 11 is also provided in the vegetable room 5 and the temperature switching room 3. The refrigerator compartment 2 is provided with a plurality of storage shelves 41 on which stored items are placed. A storage pocket 42 is provided on the door of the refrigerator compartment 2. Thereby, the usability of the refrigerator 1 is improved. A chilled chamber 23 maintained at a chilled temperature zone (about 0 ° C.) is provided in the lower part of the refrigerator compartment 2.

  A cold air passage 31 is provided behind the freezer compartment 6, and a cooler 17 connected to the compressor 35 is disposed in the cold air passage 31. A cold air passage 32 communicating with the cold air passage 31 is provided behind the refrigerator compartment 2. A refrigerant such as isobutane is circulated by driving a compressor 35 connected to a condenser and an expander (both not shown) to operate a refrigeration cycle. Thereby, cold air | gas is produced | generated by heat exchange with the cooler 17 used as the low temperature side of a refrigerating cycle. The compressor 35 is driven when the room temperature of the refrigerator compartment 2 or the freezer compartment 6 rises above the upper limit temperature that is higher than the set temperature, and is stopped when the lower limit temperature is lower than the set temperature.

  Further, blowers 18 and 28 are arranged in the cold air passages 31 and 32, respectively. As will be described in detail later, the cool air generated by the cooler 17 is supplied to the freezer compartment 6, the ice making chamber 4, the chilled chamber 23, and the temperature switching chamber 3 through the cool air passage 31 by driving the blower 18. Further, the fan 28 is supplied to the refrigerator compartment 2 and the vegetable compartment 5 through the cold air passage 32.

  FIG. 4 is a right side sectional view showing the temperature switching chamber 3. The upper and lower surfaces of the temperature switching chamber 3 are insulated from the refrigerator compartment 2 and the vegetable compartment 5 by heat insulation walls 7 and 8. The side surface of the temperature switching chamber 3 is insulated from the ice making chamber 4 and the freezing chamber 6 by a heat insulating wall (not shown). The front surface of the temperature switching chamber 3 can be opened and closed by a rotating door 9. The back surface of the temperature switching chamber 3 is covered with a back plate 33.

  An inlet 33a through which air flows into the temperature switching chamber 3 is provided at the upper part of the back plate 33, and an outlet 33b through which air flows out from the temperature switching chamber 3 is provided at the lower part. Further, temperature sensors 24 and 16 for detecting the temperature of the air are provided in the vicinity of the inlet 33a and the outlet 33b.

  An introduction ventilation path 12 is provided behind the back plate 33 and the heat insulating wall 10 that forms the outer wall. The introduction ventilation path 12 is provided with a temperature switching chamber discharge damper 13 (first damper, see FIG. 5), and cool air generated in the cooler 17 (see FIG. 3) communicating with the cold air passage 31 is transferred to the temperature switching chamber 3. Lead. The cool air path between the cooler 17 and the inflow side of the temperature switching chamber 3 is opened and closed by opening and closing the temperature switching chamber discharge damper 13, and the amount of air flowing into the temperature switching chamber 3 from the introduction ventilation path 12 is adjusted by the opening and closing amount. .

  In the introduction ventilation path 12, a blower 14 is provided between the temperature switching chamber discharge damper 13 and the inflow port 33a. The cool air in the cool air passage 31 is easily guided to the temperature switching chamber 3 by driving the blower 14.

  A temperature switching chamber return damper 20 (second damper) is provided behind the outlet 33b. The temperature switching chamber return damper 20 has openings 20a and 20b, and has a rotating plate 20c that opens one side by rotation and closes the other. When the opening 20b is opened, the air flowing out of the temperature switching chamber 3 is guided to the cooler 17 through the return ventilation path 19 (see FIG. 5).

  When the opening 20a is opened, the air flowing out from the temperature switching chamber 3 is guided to the intake side of the blower 14, and the cool air path between the outflow side of the temperature switching chamber 3 and the cooler 17 is closed. Therefore, the air in the temperature switching chamber 3 can be circulated as shown by the arrow F by driving the blower 14, closing the opening 20 b and closing the temperature switching chamber return damper 20. Note that the blower 14 may be provided in the temperature switching chamber 3.

  A heater 15 is provided behind the inlet 33 a of the temperature switching chamber 3. The heater 15 is formed of a heat radiation type glass tube heater, and raises the temperature of the temperature switching chamber 3 by radiant heat released through the back plate 33. The blower 14 is disposed so as to blow toward the surface of the heater 15. Thereby, the surface temperature of the heater 15 can be lowered and safety can be improved. Further, the outlet 33b is provided with a temperature fuse 30 that cuts off the energization of the heater 15 when the temperature reaches a predetermined temperature.

  In the temperature switching chamber 3, a drawer-type storage case 11 on which stored items are placed is arranged. A temperature sensor 34 is provided on the bottom surface of the storage case 11. Thereby, the temperature of the stored item placed on the storage case 11 can be accurately detected.

  FIG. 5 is a front sectional view of the vicinity of the middle stage of the refrigerator 1. The cool air passage 31 behind the freezer compartment 6 opens at the upper front of the blower 18, and air is sent to the ice making chamber 4 by the blower 18. A freezer compartment damper 22 is provided below the freezer compartment 6 that communicates with the ice making compartment 4. A return ventilation path 21 (see FIG. 3) is provided in the lower rear part of the freezer compartment 6 to guide air to the cooler 17 via the freezer damper 22 and return to the cool air passage 31. The amount of air flowing out of the freezer compartment 6 is adjusted by opening and closing the freezer compartment damper 22.

  The upper part of the cold air passage 31 communicates with the cold air passage 32 via the refrigerator compartment damper 27. Further, the cold air passage 31 is branched and communicates with the chilled chamber 23 via the chilled chamber damper 25 and also communicates with the introduction ventilation path 12 (see FIG. 4) as described above.

  A refrigerator outlet (not shown) is opened at the lower back of the refrigerator compartment 2 and a vegetable compartment inlet (not shown) is provided in the vegetable compartment 5. The refrigerator compartment outlet and the vegetable compartment inlet are connected by a passage (not shown) passing through the back surface of the temperature switching chamber 3 so that the refrigerator compartment 2 and the vegetable compartment 5 communicate with each other.

  The temperature switching chamber return damper 20 is provided in the lower left part of the temperature switching chamber 3. Behind the temperature switching chamber 3 and the vegetable chamber 5 is provided a return ventilation path 19 that extends downward from the temperature switching chamber return damper 20 and communicates with the return ventilation path 21 (see FIG. 3). As described above, the air in the temperature switching chamber 3 is guided to the cooler 17 through the return ventilation paths 19 and 21 by opening the opening 20b (see FIG. 4) of the temperature switching chamber return damper 20. A vegetable room outlet (not shown) communicating with the return ventilation path 19 is provided on the back of the vegetable room 5.

  FIG. 6 is a cold air circuit diagram showing the flow of cold air in the refrigerator 1. The freezer compartment 6, the refrigerator compartment 2, and the temperature switching chamber 3 are each arranged in parallel. Further, the ice making room 4 is arranged in series with the freezing room 6, and the vegetable room 5 is arranged in series with the refrigerating room 2. The cool air generated by the cooler 17 is sent up to the ice making chamber 4 by raising the cool air passage 31 as shown by an arrow A (see FIG. 5) by driving the blower 18. The cold air sent to the ice making room 4 flows through the ice making room 4 and the freezing room 6 and flows out from the freezing room damper 22. And it returns to the cooler 17 via the return ventilation path 21. As a result, the ice making chamber 4 and the freezing chamber 6 are cooled.

  The cold air branched at the top of the cold air passage 31 by driving the blower 28 circulates through the cold air passage 32 as shown by an arrow B (see FIG. 5) via the refrigerating chamber damper 27 and is sent to the refrigerating chamber 2. Moreover, it is sent to the chilled chamber 23 as shown by an arrow C (see FIG. 5). These cold air flows through the refrigerator compartment 2 and the chilled compartment 23 and then flows into the vegetable compartment 5. The cold air flowing into the vegetable compartment 5 flows through the vegetable compartment 5 and returns to the cooler 17 through the return passages 19 and 21. Thereby, the inside of the refrigerator compartment 2 and the vegetable compartment 5 is cooled, and if it becomes preset temperature, the refrigerator compartment damper 27 and the chilled compartment damper 23 will be closed.

  Further, the cold air branched at the upper portion of the cold air passage 31 by driving the blower 14 circulates through the introduction ventilation path 12 as shown by an arrow D (see FIG. 5), and enters the temperature switching chamber 3 via the temperature switching chamber discharge damper 13. Inflow. The cold air that has flowed into the temperature switching chamber 3 flows through the temperature switching chamber 3 and flows out of the temperature switching chamber return damper 20. And as shown to the arrow E (refer FIG. 5), it returns to the cooler 17 via the return ventilation path 19 and 21. FIG. Thereby, the inside of the temperature switching chamber 3 is cooled.

  As described above, the temperature switching chamber 3 can switch the room temperature by a user's operation. FIG. 7 is a front view showing a door panel provided in front of the temperature switching chamber 3. The door panel 40 is provided with a display unit 42 including an operation switch 41 and a plurality of indicators 42a to 42h. Thereby, the user can easily visually recognize and determine each operation mode.

  The operation switch 41 switches each operation mode of the temperature switching chamber 3 by a user operation. Each indicator 42a-42h lights, and alert | reports each operation mode of the temperature switching chamber 3. FIG. The operation modes of the temperature switching chamber 3 are wine (8 ° C.), refrigeration (3 ° C.), chilled (0 ° C.), soft freezing (−8 ° C.), and freezing (−15 ° C.) depending on the temperature zone. Provided and notified by the indicators 42a to 42h. Thus, the user can store the stored product in a frozen state or a refrigerated state at a desired temperature.

  When each cooling mode is instructed, the temperature of the temperature switching chamber 3 is detected by one of the temperature sensors 16, 24, and 34. When the room temperature exceeds the upper limit temperature based on each set temperature, the temperature switching chamber discharge damper 13 and the temperature switching chamber return damper 20 are opened, and the compressor 35 and the blower 14 are driven. Thereby, the temperature switching chamber 3 is cooled, and when it reaches a predetermined temperature, the compressor 35 and the blower 14 are stopped. At this time, the temperature switching chamber discharge damper 13 and the temperature switching chamber return damper 20 may be closed or may remain open.

  For example, the heater 15 may be energized to switch the temperature from the freezing room temperature to the refrigerated room temperature. Thereby, it can switch to desired room temperature rapidly.

  Further, by energizing the heater 15, the room temperature of the temperature switching chamber 3 is switched from the low temperature side where the stored items are stored frozen or refrigerated to the high temperature side where the cooked heated food is temporarily kept warm or cooked. Can do. On the high temperature side, a heating mode of 8 hours or 4 hours is provided, which is notified by the indicators 42a and 42b, respectively.

  Since the growth temperature of the main food poisoning bacteria is 30 ° C. to 45 ° C., the indoor temperature on the high temperature side is preferably set to 50 ° C. or more in consideration of the tolerance of the heater capacity, the temperature distribution in the temperature switching chamber 3, and the like. Thereby, propagation of miscellaneous bacteria can be prevented. Moreover, since the heat-resistant temperature of the general resin parts used for a refrigerator is 80 degreeC, when the room temperature of a high temperature side shall be 80 degrees C or less, it can implement | achieve cheaply.

  In order to sterilize food poisoning bacteria, for example, in the case of enterohemorrhagic E. coli (pathogenic E. coli O157), heating at 75 ° C. for 1 minute is required. Therefore, it is more desirable to set the room temperature on the high temperature side to 75 ° C. to 80 ° C. in consideration of the tolerance of the heater capacity and the temperature distribution in the temperature switching chamber 3.

The following are the test results on the sterilization of food poisoning bacteria at 55 ° C. In the initial state, E. coli 2.4 × 10 ³ CFU / mL, Staphylococcus aureus 2.0 × 10 ³ CFU / mL, Salmonella 2.1 × 10 ³ CFU / mL, Vibrio parahaemolyticus 1.5 × 10 ³ CFU / ML, Cereus 4.0 × 10 ³ CFU / mL. This test sample was heated from 3 ° C. to 55 ° C. over 40 minutes, kept at 55 ° C. for 3.5 hours, then returned from 55 ° C. to 3 ° C. over 80 minutes, and the amount of each bacterium was examined again. As a result, all the bacteria were reduced to a level of 10 CFU / mL or less (not detected). Therefore, even if the set temperature on the high temperature side of the temperature switching chamber 3 is 55 ° C., there is a sufficient sterilization effect.

  Further, a rough heat removal mode is provided in which rough heat removal is performed on a high-temperature stored item stored in the temperature switching chamber 3 by operating the operation switch 41. The rough heat removal mode is notified by the display 42c. In the rough heat removal mode, a cooling operation is performed for rough heat removal of the stored material, and the cooling operation is stopped when a predetermined temperature is reached.

  At this time, the temperature at which the cooling operation is stopped can be set. For example, when the salad bar is set, the cooling operation stop temperature is set to 0 ° C., and the temperature of the raw vegetables or the like is lowered to a temperature suitable for the salad. Moreover, if it sets to warm vegetable refrigeration setting, the stop temperature of a cooling driving | operation will be set to 8 degreeC, and will drop temperature of warm vegetables etc. to the temperature suitable for a meal. The stored product can be stored at a desired temperature by setting a salad bar or a refrigerated vegetable.

  FIG. 8 is a flowchart showing the operation in the rough heat removal mode. When the rough heat removal mode is selected, the heater 15 in the temperature switching chamber 3 is stopped in step # 11. In step # 12, the opening 20b of the temperature switching chamber discharge damper 13 and the temperature switching chamber return damper 20 is opened. In step # 13, the refrigerator compartment damper 27 and the chilled chamber damper 25 are closed, and in step # 14, the blower 14 is driven.

  Thereby, the cool air path between the cooler 17 and the temperature switching chamber 3 is opened, and the cool air path between the cooler 17 and the refrigerator compartment 3 and the chilled chamber 23 is closed. Accordingly, a large amount of cool air passes through the temperature switching chamber 3 and the cooling operation is performed. The cooling operation is performed regardless of whether the compressor 35 is driven or stopped. Thereby, even if the refrigerator compartment 2 and the freezer compartment 6 are low temperature, and the compressor 35 has stopped, the temperature switching chamber 3 can be temperature-fallen rapidly. Further, it is not necessary to wait until an increase in the room temperature is detected as compared with the case where the temperature switching chamber 3 is set to the refrigeration mode or the like, and the cooling operation can be started quickly.

  In step # 15, the process waits until the temperature of the room detected by any one of the temperature sensors 16, 24, and 34 is lowered to a set temperature, and when the temperature is lowered, the process proceeds to step # 16. In step # 16, the refrigerator compartment damper 27 and the chilled compartment damper 25 are opened. In step # 17, the blower 14 is stopped. In step # 18, the opening 20b of the temperature switching chamber discharge damper 13 and the temperature switching chamber return damper 20 is closed. Thereby, the cooling operation is stopped.

  In step # 19, it is detected whether or not the door 9 of the temperature switching chamber 3 is opened. If the door 9 is not open, the process proceeds to step # 21. When the door 9 is opened, it is determined in step # 20 whether or not the room temperature of the temperature switching chamber 3 has become higher than the set upper limit temperature. When the temperature switching chamber 3 is not higher than the upper limit temperature, the process proceeds to step # 21.

  In step # 21, it is determined whether or not an operation mode switching operation has been performed. When the operation mode switching operation is not performed, the process proceeds to step # 19, and steps # 19 to # 21 are repeatedly performed. When the operation mode switching operation is performed, the operation in each operation mode is performed in step # 22.

  When the temperature switching chamber 3 becomes higher than the upper limit temperature in step # 20, the process returns to step # 12, and steps # 12 to # 21 are performed again.

  According to the present embodiment, the refrigerator compartment 2, the freezer compartment 6, the chilled compartment 3, the vegetable compartment 5 (all are the first storage compartment) and the temperature switching chamber 3 (the second storage compartment) are insulated and isolated, and the cold air circuit is Since it is configured in parallel, the air in the temperature switching chamber 3 can be circulated while cooling the other storage chambers.

  When the rough heat removal mode is selected, the temperature switching chamber 3 performs a cooling operation in which the temperature switching chamber discharge damper 13 and the temperature switching chamber return damper 20 (first and second dampers) are opened to drive the blower 14, and the temperature switching chamber is operated. When 3 is lower than the predetermined temperature, the blower 14 is stopped and the temperature switching chamber discharge damper 13 and the temperature switching chamber return damper 20 are closed. Can be prevented. Therefore, the taste does not drop even if raw heat or warm vegetables are removed.

  Further, since the cooling operation is performed regardless of the driving of the compressor 35, the temperature switching chamber 3 can be quickly lowered even when the temperature of the refrigerator compartment 2 is low and the compressor 35 is stopped. Furthermore, it is not necessary to wait until an increase in the room temperature is detected as compared with the case where the temperature switching chamber 3 is set to the refrigeration mode or the like, and the cooling operation can be started quickly.

  Further, since the cooling air path between the refrigerator compartment 2 and the chilled chamber 23 and the cooler 17 is closed during the cooling operation, the cool air generated by the cooler 17 is guided to the temperature switching chamber 3 to quickly cool the temperature switching chamber 3. can do.

  Further, since the cooling operation is resumed when the temperature switching chamber 3 rises above a predetermined temperature due to the opening of the door 9 of the temperature switching chamber 3, it is possible to maintain the storage product after removing the rough heat at a desired temperature. Moreover, since it cools only when the door 9 opens, drying of a stored item can be suppressed.

  Next, a second embodiment will be described. This embodiment is configured similarly to the first embodiment, and the operation in the coarse heat removal mode is different from that of the first embodiment. FIG. 9 is a flowchart showing the operation in the rough heat removal mode of the present embodiment. In the figure, steps # 11 to # 18 are the same as those in the first embodiment, and thus description thereof is omitted.

  In step # 19, it is detected whether or not the door 9 of the temperature switching chamber 3 is opened. When the door 9 is opened, the process proceeds to step # 31. If the door 9 is not open, it is determined in step # 20 whether or not the room temperature of the temperature switching chamber 3 has become higher than the set upper limit temperature. When the temperature switching chamber 3 becomes higher than the upper limit temperature, the process proceeds to step # 31. When the temperature switching chamber 3 is not higher than the upper limit temperature, the process proceeds to step # 21.

  In step # 21, it is determined whether or not an operation mode switching operation has been performed. When the operation mode switching operation is not performed, the process proceeds to step # 19, and steps # 19 to # 21 are repeatedly performed. When the operation mode switching operation is performed, the operation in each operation mode is performed in step # 22.

  When the door 9 is opened at step # 19 and when the temperature switching chamber 3 becomes higher than the upper limit temperature at step # 20, an alarm is notified at step # 31. The warning is notified by display on the operation panel 40, voice, or the like. In step # 32, it is determined whether or not an operation for resuming the cooling operation has been performed by the operation switch 41 or the like.

  If the operation for restarting the cooling operation is not performed, it is determined in step # 33 whether a predetermined time has elapsed. Steps # 32 and # 33 are repeated to wait for an operation to restart the cooling operation. When an operation to resume the cooling operation is performed, the process returns to step # 12, and steps # 12 to # 33 are performed again.

  If the operation for restarting the cooling operation is not performed within the predetermined time, the process proceeds to step # 34, and the temperature switching chamber 3 operates in the refrigeration mode. The refrigeration mode is detected by any of the temperature sensors 16, 24, and 34 in the temperature switching chamber 3, and when the temperature switching chamber 3 becomes higher than a predetermined temperature, the compressor 35 is driven to supply cold air to the temperature switching chamber 3. Is done. Thereby, the temperature switching chamber 3 can be maintained at a low temperature for a long time.

  According to this embodiment, the same effect as that of the first embodiment can be obtained. Furthermore, a warning is notified when the door 9 of the temperature switching chamber 3 is opened or when the temperature switching chamber 3 rises above a predetermined temperature. Since the cooling operation is resumed by the user's operation after the warning, the user is aware that the drying of the stored material proceeds, and the cooling operation is performed again. Therefore, the convenience of the refrigerator 1 is improved.

  In addition, when there is no operation for a predetermined period after the warning, the refrigeration mode is performed in which the rough heat removal mode is stopped and the compressor 35 is driven according to the temperature of the temperature switching chamber 3 to cool the temperature switching chamber 3. 3 is maintained at a predetermined cooling temperature. Therefore, even if the user forgets that the stored item is stored in the temperature switching chamber 3, damage to the stored item can be prevented.

  In the first and second embodiments, a damper may be provided at the outlet of the vegetable compartment 5. Thereby, when the temperature switching chamber 3 is switched from the high temperature side to the low temperature side, it is possible to prevent the hot air from the temperature switching chamber 3 from flowing backward into the vegetable chamber 5 by closing the damper. In addition, when the blower 18 is stopped when the temperature switching chamber 3 is switched from the high temperature side to the low temperature side, the freezer compartment damper 22 is closed. Thereby, it is possible to prevent hot air from flowing backward from the freezer damper 22 into the freezer compartment 6 by driving the blower 14.

  Note that the storage room that can execute the coarse heat removal mode may not be able to switch the temperature. That is, as long as the cold air circuit is a storage room that is insulated and insulated in parallel with the refrigerating room 2 or the like, a storage room that is kept constant at the refrigerating temperature or the freezing temperature may be used. In addition, by making the storage chamber that can execute the rough heat removal mode into the temperature switching chamber 3, the stored product can be stored at a desired temperature such as frozen storage or refrigeration storage after the completion of the rough heat removal mode.

  According to this invention, it has a 1st, 2nd storage chamber by which a cold-air circuit is distribute | arranged in parallel, and it can utilize for the refrigerator which performs the rough heat removal of a stored matter.

The front view which shows the refrigerator of 1st Embodiment of this invention. The right view which shows the refrigerator of 1st Embodiment of this invention. Sectional drawing on the right side showing the refrigerator according to the first embodiment of the present invention. Cross section of the right side showing the temperature switching chamber of the refrigerator of the first embodiment of the present invention Front sectional drawing which shows the middle step part of the refrigerator of 1st Embodiment of this invention. The cold air circuit diagram which shows the flow of the cold air of the refrigerator of 1st Embodiment of this invention The front view which shows the door panel of the temperature switching chamber of the refrigerator of 1st Embodiment of this invention. The flowchart which shows operation | movement of the rough heat removal mode of the refrigerator of 1st Embodiment of this invention. The flowchart which shows operation | movement of the rough heat removal mode of the refrigerator of 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Refrigeration room 3 Temperature switching room 4 Ice making room 5 Vegetable room 6 Freezing room 9 Door 12 Introduction ventilation path 13 Temperature switching room discharge damper 14, 18, 28 Blower 15 Heater 17 Cooler 16, 24, 34 Temperature sensor 19, 21 Return ventilation path 20 Temperature switching room return damper 22 Freezing room damper 25 Chilled room damper 30 Thermal fuse 31, 32 Cold air passage 33 Back plate 35 Compressor 40 Door panel 41 Operation switch 42 Display section

Claims (4)

The cooler includes first and second storage chambers that are insulated and insulated, a compressor that is driven according to the temperature of the first storage chamber, and a cooler that is maintained at a low temperature by driving the compressor. In the refrigerator, the cold air generated in 1 is branched into the first and second storage chambers arranged in parallel, and the cold air flowing out from the first and second storage chambers merges and returns to the cooler.
A first damper that opens and closes a path that connects the cooler and the inflow side of the second storage chamber; a second damper that opens and closes a path that connects the cooler and the outflow side of the second storage chamber; A blower for taking in and discharging cool air into the second storage chamber when the second damper is opened,
Regardless of the driving of the compressor, the first and second dampers are opened and the blower is driven to perform a cooling operation for cooling the second storage chamber, and the cooling operation causes the second storage chamber to be lower than a predetermined temperature. A rough heat removal mode is provided in which the blower is stopped and the first and second dampers are closed when lowered.
In the rough heat removal mode, when the blower is stopped, when the door of the second storage chamber is opened or when the second storage chamber rises above a predetermined temperature, the cooling operation is resumed by a predetermined operation by a user,
When the operation is not performed within a predetermined period from when the door of the second storage chamber is opened when the blower is stopped or when the second storage chamber rises above a predetermined temperature, the rough heat removal mode is stopped, A refrigerator that performs a refrigeration mode in which the compressor is driven to cool the second storage chamber according to the temperature of the second storage chamber . The refrigerator according to claim 1, wherein the second storage room includes a temperature switching room that can be switched to a desired room temperature . The refrigerator according to claim 1 or 2, wherein the rough heat removal mode can set the predetermined temperature to a plurality of different temperatures . The refrigerator according to any one of claims 1 to 3, wherein a cold air path between the first storage chamber and the cooler is closed during the cooling operation .