JP2009133504A - Refrigerator freezer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator freezer capable of effectively cooling a vegetable container and keeping it highly humid. <P>SOLUTION: This refrigerator freezer is equipped with a refrigerating compartment provided at an upper part of a refrigerator body, a freezing chamber provided at a lower part of the refrigerator body, an evaporator for cooling the refrigerating chamber provided at the back of the refrigerator chamber for cooling the refrigerator chamber, an evaporator for cooling the freezing chamber provided at the back of the freezing chamber for cooling the freezing chamber, the vegetable container provided in the refrigerating chamber and disposed below a cooler, a cold air blow-out port formed at the back of the refrigerating chamber not opposing the vegetable container for blowing cold air cooled by the evaporator for cooling the refrigerating chamber into the refrigerating chamber, a cold air suction port positioned at a lower part of the vegetable container and formed at the back of the refrigerating chamber for returning air that has cooled the inside of the refrigerating chamber into the evaporator for cooling the refrigerating chamber, and a return duct provided at the back of the vegetable container for blowing air sucked in from the cold air suction port to the evaporator for cooling the refrigerating chamber. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a refrigerator-freezer in which a refrigerator compartment and a freezer compartment are each cooled by a dedicated evaporator.

  Conventionally, what was described in Unexamined-Japanese-Patent No. 2000-220943 (patent document 1) is known as a refrigerator-freezer which cools a refrigerator compartment and a freezer compartment with a respectively exclusive evaporator. As shown in FIG. 2, the conventional refrigerator-freezer has a refrigerator compartment in the upper part of the refrigerator body and a freezer compartment in the lower part so that cold air does not come and go between the refrigerator compartment and the freezer compartment. A cold air outlet formed in the upper part of the back wall of the refrigerator compartment, with an evaporator for cooling the refrigerator compartment in the upper part of the back part of the refrigerator body and an evaporator for cooling the freezer compartment in the lower part of the back part of the refrigerator body The cool air blown out through the evaporator for cooling the cold room is blown out, and the cold air in the refrigerator is exhausted to the back of the cold room through the cold air suction port formed in the upper and lower middle parts of the back wall of the cold room. It is the structure which returns to an evaporator. And the vegetable container is divided and provided in the lower part of the refrigerator compartment.

However, in the case of such a conventional refrigerator-freezer, the vegetable container is provided in the lower part of the refrigeration room, but a cooling room is formed on the back wall of the refrigeration room at a position above the vegetable container, and the refrigerator is refrigerated from the cooling room. A cold air outlet is provided in front of the chamber so that the cold air is blown out, and a cold air inlet is provided on the lower surface of the cooling chamber so as to suck in the cold air from the refrigerator compartment. Although it circulates indoors, cold air does not circulate sufficiently to the vegetable container at the bottom of the refrigerator compartment, and there is a problem that the foodstuffs in the vegetable container cannot be cooled effectively.
JP 2000-220943 A

  This invention is made | formed in view of the subject of the said prior art, and it aims at providing the freezer refrigerator which a vegetable container can fully cool and can maintain at high humidity.

  The features of the present invention are a refrigerator compartment provided at the top of the refrigerator body, a freezer compartment provided at the bottom of the refrigerator body, a refrigerator for cooling the refrigerator compartment provided at the back of the refrigerator compartment, and cooling the refrigerator compartment A freezer compartment cooling evaporator provided at the back of the freezer compartment for cooling the freezer compartment, a vegetable container provided in the refrigerator compartment and positioned below the cooler, and the refrigerator compartment not facing the vegetable container A cold air outlet for blowing the cold air cooled by the evaporator for cooling the cold room into the cold room, and a cold room provided on the back of the cold room and located below the vegetable container. A cool air suction port for returning the cooled air to the evaporator for cooling the refrigerator compartment, and a return duct that is provided on the back of the vegetable container and blows the air sucked from the cold air inlet to the evaporator for cooling the refrigerator compartment Freezing and cooling provided It is a refrigerator.

  According to the refrigerator-freezer of the present invention, the vegetable container is sufficiently cooled, and the inside of the vegetable container can be maintained at high humidity.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 6 show a refrigerator-freezer according to one embodiment of the present invention. In the refrigerator-freezer, a heat insulating partition wall 4 is provided in a box-shaped refrigerator main body 1, a refrigerator compartment 2 is provided above, and a refrigerator compartment 3 is provided below. The freezer compartment 3 is provided with an ice making chamber 3a and a small freezer compartment or a switching chamber 3b at the top, and a large freezer compartment 3c is formed below the compartment. The refrigerator compartment 2 is provided with a refrigerator compartment door 6, the ice making compartment 3a with an ice making compartment door 8, the small freezer compartment 3b with a small freezer compartment door 9, and the large freezer compartment 3c with a freezer compartment door 7, respectively. .

  As shown in FIG. 2, a plurality of loading shelves 21 on which food is placed are provided in the upper part of the refrigerator compartment 2, and a vegetable container 26 is disposed below the shelf. Below the vegetable container 26, a lower partition plate 25 is provided for partitioning from other storage spaces, and the lower part is a low temperature chamber 23. The low temperature chamber 23 accommodates a chilled chamber 27A, an egg case 27B, and a water supply tank 27C.

  In order to make it easy to take out the stored vegetables, the vegetable container 26 has an upper portion and an upper front portion that are open. An upper partition plate 24 serving as a mounting shelf is provided above the upper opening so as to cover the upper opening. It is provided on the main body side wall. Further, a crispa lid 30 is provided so as to cover the front upper opening. Furthermore, as shown in FIG. 3, the bottom of the vegetable container 26 is supported by a slide rail 26A, and is attached to be movable in the front-rear direction. In addition, when the vegetable container 26 is moved in the forward direction, the crispa lid 30 slides upward to open the upper opening, and the upper opening can be opened manually. The shape of the vegetable container 26 is not limited to the shape described above, and the front surface may be formed with a front wall without providing the front upper opening, and the upper opening is also provided to be detachable directly on the vegetable container 26. You may cover with a cover body and various changes are possible.

    As shown in FIG. 2, a refrigerating room cooling evaporator 13 is provided at the back of the refrigerating room 2, and a cooling space provided with the refrigerating room cooling evaporator 13 is provided in front of the refrigerating cooling evaporator 13. A refrigerator compartment duct cover 11 that partitions the storage space is provided. As shown in FIG. 4, the refrigerator compartment duct cover 11 includes a refrigerator compartment duct front panel 11 </ b> A, a refrigerator compartment duct rear panel 11 </ b> B, and a refrigerator compartment duct lower panel 28.

  As shown also in FIG. 5, the refrigerator compartment cooling fan 14 which circulates cold air is arrange | positioned above the evaporator 13 for refrigerator compartment cooling, and between the refrigerator compartment duct front panel 11A and the refrigerator compartment duct rear panel 11B. Cold air is supplied from the cold air outlet 17 into the refrigerating chamber 2 through the left and right air ducts. The cold air outlet 17 is provided on the front, side, and upper surface of the front panel 11 </ b> A of the refrigerator compartment duct, and the cold air blown out from the cold air outlet 17 provided on the front surface passes through the storage space between the shelves 21. The inside of the refrigerator compartment 2 is uniformly cooled by being blown forward along the inner wall of the refrigerator from the cold air outlet 17 blown forward and provided on the side surface and the upper surface. The chilled chamber 27A is provided with a lower cold air outlet 20 at the front end of the lower cold air blowing duct 19 on the right side, and the cold air blown out from the lower cold air outlet 20 is blown into the chilled chamber 27A. The egg case 27B and the water supply tank 27C are cooled together with the chamber 27A.

  A part of the cold air blown out from the cold air outlet 17 is the lower side surface of the cold room duct front panel 11A, and the cold air that has cooled the cold room 2 from the upper cold air inlet 18 formed above the upper partition plate 24. Inhale. Further, the remaining cold air blown out from the cold air outlet 17 and the cold air blown out from the lower cold air outlet 20 are formed on the lower front surface of the cold room duct lower panel 15 and below the lower partition plate 25. The air that has cooled the refrigerator compartment 2 is sucked from the lower cold air suction port 29.

  As shown in FIG. 5, the return duct 16, which is the back part of the vegetable container 26 and provided in parallel with the lower cold air blowing duct 19, is used for cooling the refrigerator compartment by sucking air sucked from the lower cold air suction port 29. The air extends upward so as to return to the evaporator 13, and the air sucked from the upper cold air inlet 18 also joins at the upper part of the return duct 16 and is returned to the evaporator 13.

  The portion corresponding to the back side of the vegetable compartment space 22 in the cold room duct lower panel 15 is a closed portion 28 having no opening, and the food provided in the vegetable container 26 is cooled by the cold air flowing above the upper partition plate 24. The cold air flowing in front of the vegetable container 26, the cold air flowing under the lower partition plate 25, or the indirect cooling by the return duct 16 and the lower cold air blowing duct 19, can be sufficiently cooled. In particular, a cold air inlet, here a lower cold air inlet 29, is provided below the vegetable container 26, and the return duct 16 is disposed on the back of the vegetable container 26 so that cold air is not directly blown into the vegetable container 26. A cold air passage flowing around the vegetable container 26 is formed and cooled. In addition, the vegetable room space 22 provided with the vegetable container 26 is not provided with a cold air outlet or a suction port, so that drying due to blowing can be suppressed.

  On the other hand, as shown in FIGS. 1 and 2, freezing cases 31 are installed in a plurality of stages in the freezer compartment 3. A solenoid plunger 32 is installed to automatically open the freezer compartment door 7. A freezer compartment cool air duct cover 33 is installed on the back of the freezer compartment 3, and a freezer compartment cool air duct 34 is formed between the freezer compartment cool air duct cover 33 and the back wall of the refrigerator body 1. A freezer compartment cooling evaporator 35 is installed in the freezer compartment cool air duct 34, and a freezer compartment cooling fan 36 is installed for circulating the cool air. A cold air outlet duct 37 is formed in front of the freezer compartment cold air duct panel 33. A compressor 38 is installed on the lower back surface of the refrigerator body 1.

  The refrigeration cycle of the present embodiment will be described using FIG. A compressor 38, a condenser 39, and a three-way valve 40 are connected by a refrigerant pipe 41. At one outlet of the three-way valve 40, a refrigerating room capillary tube 42 and a refrigerating room cooling evaporator (R evaporator) 13 are provided. Connected. A freezer compartment capillary tube 43 and a freezer compartment cooling evaporator (F evaporator) 35 are connected to the other outlet of the three-way valve 40. The outlet of the refrigerator for cooling refrigerator compartment 13 is connected to the inlet of the evaporator for cooling freezer compartment 35 together with the freezer capillary tube 43. A refrigerant pipe 41 is connected to an outlet side of the freezer compartment cooling evaporator 35 so as to return to the compressor 38 through the accumulator 44.

  In the refrigeration cycle shown in FIG. 4, the refrigerant compressed by the compressor 38 is condensed into a liquid by the condenser 39, and the refrigerant in the liquid state is cooled by the three-way valve 40, the evaporator 13 for cooling the refrigerator compartment, By switching to the room cooling evaporator 35 and allowing them to pass alternately, the liquid refrigerant is vaporized by the respective evaporators 13 and 35, and the evaporators 13 and 35 are cooled to a low temperature state by the heat of vaporization at that time.

  Then, the refrigerating room cooling fan 14 cools the air circulating through the refrigerating room cooling air duct 12 by passing through the refrigerating room cooling evaporator 13 and blows it into the refrigerating room 2 as the refrigerating room cooling air 61. By doing so, the inside of the refrigerator compartment 2 is cooled. Similarly, the freezing room cooling fan 36 is cooled by passing the freezing room cooling evaporator 35 through the air circulating through the freezing room cooling air duct 34 by the rotation of the freezing room cooling fan 36, and the freezing room cooling air 64 is blown into the freezing room 3. The small freezer compartment 3a, ice making chamber 3b, and large freezer compartment 3c are cooled.

  Next, the cooling operation by the above-described refrigerator-freezer will be described. On the refrigerator compartment 2 side, air is sucked into the refrigerator compartment cool air duct 12 by the refrigerator compartment cooling fan 14, and the cold air 61 heat-exchanged with the evaporator 13 for refrigerator compartment cooling is introduced into the refrigerator compartment 2 from the respective cold air outlets to the upper side. The part and the front are blown out. In the refrigerating room 2, the cold air 61 cools the food while descending each shelf 21, and a part of the cold air 62 is sucked into the refrigerating room cold air duct 12 from the cold air inlet 18 disposed above the upper partition plate 24. Let it circulate. Further, the remaining cold air 63 in the cold room 61 passes through the front of the vegetable container 26 and descends to the low temperature room 23, and returns from the lower cold air inlet 29 on the back of the chilled room 27 </ b> A to the back of the lower panel 15 of the cold room duct. The air sucked into the duct 16 and merged with the air sucked from the cold air inlet 18 is exchanged with the evaporator 13 for cooling in the refrigerator compartment again.

  With the flow of the cold rooms 61-63, the food on the mounting shelf 21 is cooled, the vegetable container 26 in the vegetable room space 22 is indirectly cooled, and the chilled room 27A in the cold room 23, eggs The case 27B and the water supply tank 27C are cooled. In this refrigerating room cooling operation, the portion of the refrigerating room duct lower panel 15 corresponding to the back of the vegetable room space 22 becomes a closed portion 28, and there is no opening through which the cold air passes. Although 63 passes the circumference | surroundings of the vegetable container 26 in the vegetable compartment space 22 and cools the vegetable in the vegetable container 26 indirectly, cold air does not hit the vegetables in the vegetable container 26 directly. For this reason, the cold room 61-63 in the dry state with a low content of water vapor because of the low temperature has a small ratio of depriving the vegetables of moisture, and the vegetables in the vegetable container 26 can be cooled with good freshness. Further, while cooling the freezer compartment 2 and the like by flowing the refrigerant through the freezer compartment cooling evaporator 35, the refrigeration compartment cooling fan is rotated so that the frost water adhering to the refrigerator compartment cooling evaporator 13 is put into the refrigerator compartment 2. By reducing the humidity, the humidity in the vegetable room can be kept high. Although the moisture evaporation of the vegetables in the vegetable container 36 is suppressed by providing the crispa lid 30 in the front opening of the vegetable container 26, even if the crispa lid 30 is not provided or is open. The above-described control can sufficiently suppress moisture evaporation and maintain freshness.

  For cooling on the freezer compartment 3 side, air is circulated in the freezer compartment cooling air duct 34 by the freezer compartment cooling fan 36, passed through the freezer compartment cooling evaporator 35, cooled to cool air 64, and the freezer compartment outlet duct 37. The ice making chamber 3a, the small freezing chamber 3b, and the large freezing chamber 3c are cooled by blowing out into the freezing chamber 3. The cold air 64 in the freezer compartment 3 cools the food while descending each part, and the freezer cold air duct 34 sucks it out from the lower part and circulates it.

  As described above, according to the refrigerator-freezer of the present embodiment, the vegetable compartment space 22 is provided in the refrigerator compartment 2, the vegetable container 26 is accommodated therein, and the vegetables in the vegetable container 26 are cooled, And since the opening part through which cold air passes is not provided in the back part of the vegetable compartment space 22, the ratio of the dry refrigerator compartment cold air 61 with little water vapor | steam contained because of low temperature removes moisture from vegetables is small, and the vegetable container 26 The vegetables inside can be cooled with good freshness and effectively.

  Moreover, by providing the evaporators 13 and 35 for the refrigerator compartment 2 and the freezer compartment 3 respectively, drying in the refrigerator compartment 2 and the vegetable container 26 can be suppressed, and especially the refrigerator compartment 3 is cooled. The refrigeration compartment cooling fan 14 is rotated to reduce the moisture of the frost adhering to the freezer compartment cooling evaporator 35 into the refrigerating compartment 2, thereby further increasing the humidity in the refrigerating compartment 2 and the vegetable container 26. be able to.

  Further, by providing a cold air suction port 29 below the vegetable container 26 and providing a return duct 16 at the back of the vegetable container 26 for blowing the air sucked from the cold air suction port 29 to the evaporator 13 for cooling the refrigerator compartment, An air passage that flows around the vegetable container 26 is formed, and even if the cold air is not blown directly into the vegetable container 26, it can be sufficiently indirectly cooled.

  Furthermore, since the upper partition plate 24 is provided and covered at the upper opening of the vegetable container 26, drying in the vegetable container 26 is suppressed, and a cold air inlet 18 is provided above the upper partition plate 24. Therefore, a cold air path is formed above the vegetable container 26. In particular, the vegetable container 26 can be indirectly cooled from above without having a lid that seals the upper surface of the vegetable container 26. . Further, below the lower partition plate 25 provided below the vegetable container 26, the cold air blown out from the lower cold air outlet 20 for cooling the chilled chamber 27A and the like in the low temperature chamber 23 and the lower cold air outlet is provided. By providing the lower cold air inlet 29 that returns to the evaporator 13 for cooling the cold room, a cold air passage is formed below the vegetable container 26, and the vegetable container 26 is indirectly cooled more reliably from below. be able to.

  On the other hand, by providing the lower cold air blowing duct 19 on the side of the return duct 16, the storage space can be used effectively, and the cold air passing through the lower cold air blowing duct 19 can be used more reliably in the vegetable container 26. The food can be cooled.

  In front of the vegetable container 26, a crispa lid 30 that covers the front opening of the vegetable container 26 is provided, so that drying in the vegetable container 26 can be suppressed during storage, and the lid 30 is opened and closed during use. Thus, the food in the vegetable container 26 can be easily taken out, and the convenience for the user is improved.

  Furthermore, the heat insulation partition wall 10 that partitions the refrigerator compartment 2 and the freezer compartment 3 is provided, and the low temperature chamber 23 is disposed between the heat insulation partition wall 10 and the lower partition plate 25, so that the vegetable container 26 has a temperature Since the low freezer compartment 3 is separated from the heat insulating partition wall 10 and the low temperature compartment 23, the inside of the vegetable container 26 is prevented from being overcooled to freeze or dew, and thus the inside of the vegetable container 26 is highly humid. Can be held in. In this case, since the cold room cooling evaporator 13 having a low temperature is also disposed above the vegetable container 26, the vegetable container 26 can be prevented from being overcooled. Furthermore, since it is not necessary to use a temperature compensation heater or the like for preventing the vegetable container 26 from being too cold, it is possible to save power. In addition, it is good also as a form which arrange | positions the vegetable container 26 on the upper surface of the heat insulation partition wall 10, if it considers the thickness etc. of the heat insulation partition wall 10 so that it may not have a bad influence on the vegetable container 26. FIG. In this case, the chilled chamber 27A and the like may be provided above the vegetable container 26.

The front view of the refrigerator-freezer of one embodiment of this invention. The longitudinal cross-sectional view of the refrigerator-freezer of the said embodiment. The partially broken perspective view which shows the apparatus arrangement | positioning in the refrigerator compartment in the refrigerator-freezer of the said embodiment. The disassembled perspective view which shows the refrigerator compartment cold-air duct panel of the refrigerator-freezer of the said embodiment, the refrigerator compartment duct lower panel, the evaporator for refrigerator compartment cooling. Sectional drawing of the refrigerator compartment back part in the refrigerator-freezer of the said embodiment. The block diagram of the refrigerating cycle of the refrigerator-freezer of the said embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Refrigerator body 2 Refrigerating room 3 Freezing room 11 Refrigerating room cold air duct panel 12 Refrigerating room cold air duct 13 Refrigerating room cooling evaporator 14 Refrigerating room cooling fan 15 Refrigerating room duct lower panel 16 Return duct 17 Refrigerating room cold air outlet 18 Cold intake Mouth 19 Lower cold air blow duct 20 Lower cold air outlet 22 Vegetable room space 23 Low greenhouse 24 Upper partition plate 25 Lower partition plate 26 Vegetable container 27A Chilled chamber 28 Blocking portion 29 Lower cold air inlet 61 Cold room cold air 62 Cold air 63 Cold air 64 Freezer room cold air

Claims (5)

  A refrigerating room provided in the upper part of the refrigerator body; a freezing room provided in the lower part of the refrigerator body; a refrigerating room cooling evaporator provided on the back of the refrigerating room for cooling the refrigerating room; and a back part of the freezing room Provided in a freezer compartment cooling evaporator for cooling the freezer compartment, a vegetable container provided in the refrigerator compartment and positioned below the cooler, and provided in a back portion of the refrigerator compartment not facing the vegetable container, Refrigeration of the air that has cooled the refrigeration chamber, located at the back of the refrigeration chamber and below the vegetable container, is provided at the back of the refrigeration chamber and cool air cooled by the evaporator for cooling the refrigeration chamber. A cold air suction port that returns to the room cooling evaporator, and a return duct that is provided on the back of the vegetable container and that blows air sucked from the cold air suction port to the cold room cooling evaporator, Freezing cold The refrigerator.   An upper partition plate provided above the vegetable container so as to cover an upper surface opening of the vegetable container, a lower partition plate provided below the vegetable container, and provided above the upper partition plate An upper cold air outlet for blowing the cold air cooled by the evaporator for cooling the cold room into the cold room, and cool air blown out from the upper cold air outlet provided above the upper partition plate for cooling the cold room An upper cold air inlet that returns to the evaporator, a lower cold air outlet that blows cold air that is provided below the lower partition plate and is cooled by the evaporator for cooling the refrigerator compartment, and the upper partition plate Provided with a lower cold air inlet for returning the cold air blown from the upper cold air outlet or the lower cold air outlet to the evaporator for cooling the refrigerator compartment through the return duct. Refrigerator according to claim 1.   3. The refrigerator-freezer according to claim 1, wherein a lower cold air duct that blows cool air from the refrigerator for cooling a cold room to the lower cold air outlet is provided on a side of the return duct. 4. .   The refrigerator-freezer according to claim 1, wherein a crispa lid that covers a front opening of the vegetable container is provided in front of the vegetable container. 3. The refrigerator-freezer according to claim 2, wherein a heat insulating partition wall that partitions the refrigerator compartment and the freezer compartment is provided, and a low temperature chamber is disposed between the heat insulating partition wall and the lower partition plate.

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