JP6389075B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator having a cold air passage.

  A conventional refrigerator is disclosed in Patent Document 1. The refrigerator is provided with a refrigerator compartment (first refrigerator compartment) for storing stored items in the upper part of the heat insulation box, and a vegetable compartment (second refrigerator compartment) for storing stored items under the refrigerator compartment. The Below the vegetable compartment, a freezer compartment for storing stored items in a frozen state is arranged vertically.

  A machine room is provided on the back side of the lowermost freezer compartment, and a compressor for operating the refrigerating cycle is arranged in the machine room.

  A cool air passage through which cool air flows is provided at the rear of the freezer compartment by providing a cooler, a blower fan, and a damper. A discharge port and a return port facing the freezer compartment, a discharge port facing the refrigerator compartment, and a return port facing the vegetable chamber are opened in the cold air passage. In the refrigerator compartment, a communication path for guiding cold air to the vegetable compartment is led out.

  In the refrigerator having the above configuration, cold air generated by heat exchange between the air flowing through the cold air passage and the cooler by driving the compressor and the blower fan is discharged from the discharge port to the freezer compartment. The cold air discharged from the discharge port flows through the freezer compartment and returns to the cooler through the return port.

  When the damper is opened, cold air is discharged from the discharge port of the refrigerator compartment, returns to the return port, and flows into the vegetable compartment through the communication path. The cold air circulated through the vegetable compartment returns to the cooler through the return port. Thereby, a freezer compartment, a refrigerator compartment, and a vegetable compartment are cooled.

JP-A-9-113108

  However, according to the conventional refrigerator, the cold air generated by the cooler flows into the refrigerating room through the cold air passage disposed on the back surface of the vegetable room. When cold air circulates behind the vegetable compartment, the temperature of the cold air may increase. For this reason, there existed a problem that the cooling capacity of a refrigerator fell.

  An object of this invention is to provide the refrigerator which can improve cooling capacity.

In order to achieve the above object, a refrigerator of the present invention includes a first refrigeration room maintained at a refrigeration temperature, a freezing room disposed below the first refrigeration room and maintained at a refrigeration temperature, and a first refrigeration room. A second refrigeration chamber that is biased in one of the left and right directions and is maintained at a refrigeration temperature, and adjacent to the side of the second refrigeration chamber, the first refrigeration chamber and the freezer compartment And a cold air passage having a first blower and a cooler disposed therein, and the cold air is passed through the cold air passage through the first refrigerator compartment and the freezer compartment. A cooler chamber provided in the rear of the freezer compartment from the lower part of the freezer compartment to the lower part of the second refrigerator compartment, wherein the cooler passage is installed in the refrigerator. , Avoiding the rear of the second refrigerator compartment, from the cooler compartment to the rear of the freezing compartment And having an upper passage extending upwardly me.

  In the refrigerator configured as described above, the cold air passage may include a lower passage disposed in front of the cooler chamber via a partition plate, and the upper passage and the lower passage may be disposed downstream of the first blower. And the first blower is arranged at a position overlapping with the partition portion that partitions the freezing compartment portion and the freezer compartment in front projection.

  According to the present invention, in the refrigerator configured as described above, a discharge port for discharging cool air to the freezer compartment is provided at an end portion on the opposite side in the left-right direction with respect to the upper passage, and a second blower is provided in the vicinity of the discharge port. It is characterized by that.

  Moreover, the present invention is characterized in that, in the refrigerator configured as described above, one side wall of the upper passage and the upper wall of the cooler chamber are connected by an inclined surface.

Moreover, the present invention is characterized in that in the refrigerator configured as described above, the freezing compartment is partitioned vertically, and an ice making chamber is disposed above the first refrigerator compartment.

Moreover, this invention is characterized by the width | variety of a 2nd refrigerator compartment being larger than the lateral width of the said freezing compartment in the refrigerator of the said structure.

According to the present invention, the cool air passage is provided with a cooler and is provided at the rear of the freezer compartment from below the freezer compartment to below the second refrigerator compartment, and from the cooler compartment to the rear of the freeze compartment. And an upper passage extending upwardly therethrough. For this reason, the cold air | gas produced | generated with the cooler is discharged to a 1st refrigerator compartment, a freezing compartment, and a freezer compartment via the upper channel | path which is not distribute | arranged behind the 2nd refrigerator compartment. Thereby, the cooling capacity of the refrigerator can be improved.

The front view which shows the refrigerator of 1st Embodiment of this invention. The front view of the main-body part of the refrigerator of 1st Embodiment of this invention. AA sectional view of FIG. BB sectional view of FIG. The perspective view which shows the lower part of the freezing cold air | gas channel | path of the refrigerator of 1st Embodiment of this invention, and a cooler chamber The perspective view which shows the vegetable compartment of the refrigerator of 1st Embodiment of this invention. The front view of the main-body part of the refrigerator of 2nd Embodiment of this invention. The front view of the main-body part of the refrigerator of 3rd Embodiment of this invention. CC sectional view of FIG.

<First Embodiment>
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a front view of the refrigerator 1 of the first embodiment. In the refrigerator 1, doors are arranged on the front surfaces of a plurality of storage rooms provided in the main body 2 (see FIG. 2). A refrigerator compartment (first refrigerator compartment) 4 for storing stored items in a refrigerator is arranged at the top of the refrigerator 1, and the front face of the refrigerator compartment 4 is opened and closed by a double door 4L and a door 4R. A freezer compartment 6 for storing stored items in a frozen state is disposed at the bottom of the refrigerator 1, and the front surface of the freezer compartment 6 is opened and closed by a drawer-type door 6a integrated with a storage case 6d (see FIG. 2).

  A vegetable room (second refrigerating room) 5 is arranged between the refrigerating room 4 and the freezing room 6 so as to be biased to the right. The vegetable compartment 5 is maintained at a refrigeration temperature to store stored items such as vegetables in a refrigerated state, and is opened and closed by a drawer-type door 5a integrated with a storage case 50 (see FIG. 2).

  In addition, a freezing compartment 21 (see FIG. 2) that is maintained at the freezing temperature is provided between the refrigerator compartment 4 and the freezer compartment 6 adjacent to the left side of the vegetable compartment 5. The freezing compartment 21 has an ice making room 25 arranged at the upper part and a freezing room 26 arranged at the lower part. The front surface of the ice making chamber 25 is opened and closed by a drawer type door 25a integrated with an ice storage case 25b (see FIG. 2). The front surface of the freezer compartment 26 is opened and closed by a drawer-type door 26a integrated with a storage case 26b (see FIG. 2).

  The door 5a is formed with the same width as the door 4R of the refrigerator compartment 4, and the doors 25a and 26a are formed with the same width as the door 4L of the refrigerator compartment 4. Thereby, the beauty | look of the refrigerator 1 can be improved.

  FIG. 2 shows a front view of the main body 2. 3 shows a cross-sectional view taken along the line AA in FIG. 2, and FIG. 4 shows a cross-sectional view taken along the line BB in FIG. The main body 2 forms each storage chamber by a heat insulating box 3 filled with a heat insulating material 13 between the inner box and the outer box. The refrigerating room 4 and the vegetable room 5 and the refrigerating room 4 and the ice making room 25 are partitioned by a partition 18 arranged horizontally. The vegetable compartment 5 and the freezer compartment 6 are partitioned by a partitioning portion 19 arranged horizontally. The vegetable compartment 5 and the freezing compartment 21 are partitioned by a partition 20 arranged vertically. When the temperature difference between each storage room is large (for example, the temperature difference between the freezer compartment 6 and the vegetable compartment 5), when the partition part is comprised with the heat insulating material 13, the supercooling of the stored material stored in the partition part vicinity is carried out. It is possible to prevent harmful effects caused by stored items. For this reason, when the temperature difference between each store room is large, it is preferable that the partition part which partitions off a store room is comprised with the heat insulating material 13. FIG.

  At the front end between the freezer compartment 26 and the freezer compartment 6, a partition portion 36 that is horizontally disposed at the same height as the partition portion 19 is provided. A partition portion 35 disposed horizontally is provided at a front end portion between the ice making chamber 25 and the freezing chamber 26. The ice making room 25, the freezing room 26 and the freezing room 6 communicate with each other behind the partition portions 35 and 36.

  In the refrigerator compartment 4, a plurality of shelves 4b, 4c, 4d, and 4e are provided. Below the shelf 4e at the lower end, there is formed a chilled chamber 70 which is formed of an isolation chamber and is biased to the right. A storage case 70 a is provided in the chilled chamber 70. An accessory room with a storage case 71 is adjacent to the left of the chilled chamber 70, and a water storage tank 72 for storing ice-making water is provided on the left of the accessory room.

  A storage case 51 is placed on the storage case 50 in the vegetable compartment 5. A storage case 6c is placed on the storage case 6d of the freezer compartment 6, and a storage case 6b is placed on the storage case 6c.

  A machine room 30 is provided in the lower part of the main body 2 behind the heat insulating box 3. A compressor 31 that operates the refrigeration cycle is disposed in the machine room 30.

  A cool air passage 7 through which cool air flows is provided at the rear part of the main body 2. The cold air passage 7 has a cooler chamber 12, an upper passage 9, a lower passage 29, and a return passage 34. The cooler chamber 12 is arranged behind the freezer compartment 26 from below the freezer compartment 26 to below the vegetable compartment 5, and the cooler 11 is installed. The cooler 11 is above the machine room 30, and a return port 9 c through which cool air returns from the freezer compartment 6 is provided at the lower end of the cooler room 12.

  The upper passage 9 extends upward from the cooler chamber 12, and the lower passage 29 is disposed on the front surface of the cooler chamber 12 via a partition plate 27. The return passage 34 is led downward from the vegetable compartment 5 and connected to the lower end of the cooler compartment 12. The partition 18 that forms the bottom wall of the refrigerator compartment 4 is provided with a communication port 4f that allows the refrigerator compartment 4 and the vegetable compartment 5 to communicate with each other.

  A blower fan 10, a damper 23, and a blower fan 24 are disposed in the upper passage 9 from below. The blower fan 10 (first blower) is disposed at a position overlapping the partition portion 36 in front projection. The lower passage 29 diverges from the upper passage 9 on the exhaust side of the blower fan 10 and extends downward. The damper 23 is opened when the refrigerator compartment 4 and the vegetable compartment 5 are cooled, and guides cool air to the refrigerator passage 8 formed above the damper 23 in the upper passage 9. The blower fan 24 is driven when the damper 23 is opened.

  The refrigeration passage 8 above the damper 23 of the upper passage 9 is arranged along the back surface and the ceiling surface of the refrigeration chamber 4, and a plurality of discharge ports 8 a to 8 f facing the refrigeration chamber 4 are opened. The discharge port 8 a is provided in the front part of the refrigeration passage 8 on the ceiling surface of the refrigeration chamber 4. The discharge ports 8b to 8d are provided between the shelf plates 4b to 4e. The lower discharge ports 8e and 8f face the chilled chamber 70.

  Below the damper 23 in the upper passage 9, the vegetable compartment 5 is avoided and the ice making chamber 25 and the freezing chamber 26 are passed behind, and a discharge port 9 a facing the ice making chamber 25 and a discharge port 9 b facing the freezing chamber 26 are opened. Discharge ports 29 a to 29 d facing the freezer compartment 6 are opened in the lower passage 29. The discharge ports 29 a to 29 c are arranged vertically in the vertical direction below the freezer compartment 26. The discharge port 29 d is arranged vertically below the vegetable compartment 5.

  FIG. 5 shows a perspective view of the lower part of the upper passage 9 of the cool air passage 7 and the cooler chamber 12. FIG. 6 shows a schematic perspective view of the vegetable compartment 5. The right side wall 9d of the upper passage 9 and the upper wall 12b of the cooler chamber 12 are connected by an inclined surface 12a. As a result, the cool air smoothly flows from the cooler chamber 12 having a large lateral width into the upper passage 9 having a narrow lateral width disposed behind the freezing compartment 21 (see FIG. 1). Therefore, the pressure loss of the cool air passage 7 can be reduced.

  At this time, an avoiding part 5d for avoiding interference with the inclined surface 12a is provided between the rear part of the partition part 19 forming the bottom wall of the vegetable compartment 5 and the rear part of the partition part 20 forming the left side wall. The avoidance part 5d is integrally formed by the partition part 19 and the partition part 20, and the avoidance part 5d is filled with the heat insulating material 13. In addition, chamfering (not shown) which avoids interference with the avoidance part 5d is formed between the side wall and bottom wall of the storage case 50 (see FIG. 4) in the vegetable compartment 5.

  In the refrigerator 1 having the above configuration, the air flowing through the cooler chamber 12 and the cooler 11 exchange heat by driving the compressor 31 and the blower fan 10 to generate cold air. The generated cold air is discharged from the discharge port 9a to the ice making chamber 25 and discharged from the discharge port 9b to the freezing chamber 26. Further, the cold air flows through the lower passage 29 and is discharged from the discharge ports 29a, 29b, 29c to the freezer compartment 6. The discharged cold air flows through the ice making chamber 25, the freezing chamber 26 and the freezing chamber 6 and returns to the cooler 11 through the return port 9c. Thereby, the inside of the ice making room 25, the freezing room 26, and the freezing room 6 is cooled.

  When the damper 23 is opened, cold air flows into the refrigeration passage 8 of the upper passage 9 and is discharged from the discharge ports 8a, 8b, 8c, 8d, 8e, 8f to the refrigeration chamber 4. The discharged cool air flows to the front of the refrigerator compartment 4 and then flows downward, and flows out from the communication port 4f. Thereby, the inside of the refrigerator compartment 4 is cooled.

  Thereafter, the cold air is discharged into the vegetable compartment 5 through the communication port 4 f, circulates from the front to the rear in the vegetable compartment 5, and returns to the cooler compartment 12 through the return passage 34. Thereby, cooling in the vegetable compartment 5 is performed.

  According to this embodiment, the cool air passage 7 has a cooler chamber 12 in which the cooler 11 is installed, and an upper passage 9 that extends upward from the cooler chamber 12. The cooler chamber 12 is provided from the lower side of the freezing compartment 21 to the lower side of the vegetable compartment 5, and the upper passage 9 is provided behind the freezing compartment 21 while avoiding the rear of the vegetable compartment 5. For this reason, the cold air | gas produced | generated with the cooler 11 is supplied to the refrigerator compartment 4, the freezer compartment 21, and the freezer compartment 6 via the upper channel | path 9 distribute | arranged avoiding the back of the vegetable compartment 5. FIG. For this reason, the temperature rise of the cold air which distribute | circulates the upper channel | path 9 can be suppressed, and the cooling capacity of the refrigerator 1 can be improved.

  Further, the lower passage 29 of the cool air passage 7 branches from the upper passage 9 downstream of the blower fan 10 (first blower) and extends downward, and the blower fan 10 is disposed at a position overlapping the partition portion 36 in front projection. For this reason, the length of the lower passage 29 branched from the upper passage 9 and cooled by the blower fan 10 can be shortened. Therefore, the pressure loss of the cool air passage 7 can be reduced.

  Further, since the side wall 9d of the upper passage 9 and the upper wall 12b of the cooler chamber 12 are connected by the inclined surface 12a, the cool air can easily flow from the cooler chamber 12 to the upper passage 9.

  Moreover, since the freezing compartment 21 is divided into upper and lower parts and the ice making room 25 is arranged above the refrigerator room 4, ice making can be easily performed in the ice making room 25 using the water of the water storage tank 72 in the refrigerator room 4. Can do.

Second Embodiment
Next, FIG. 7 has shown the front view of the main-body part 2 of the refrigerator 1 of 2nd Embodiment. For convenience of explanation, the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS. In the present embodiment, the shape of the upper passage 9 is different from that of the first embodiment. Other parts are the same as those in the first embodiment.

  The upper passage 9 is provided with divided passages 32a and 32b divided into left and right by a partition wall 32c extending vertically between the blower fan 10 and the damper 23. Discharge ports 9a and 9b are opened in the left divided passage 32b, and the blower fan 10 and the damper 23 are connected by the right divided passage 32a.

  Thus, when the damper 23 is opened, the cool air can be smoothly guided to the refrigeration passage 8 above the damper 23. Further, it is possible to prevent a decrease in the cool air guided to the refrigeration passage 8 due to the cool air discharge from the discharge ports 9a and 9b. Therefore, it is possible to reduce overcooling of the freezing rooms 6 and 26 and the ice making room 25 when the refrigerator compartment 4 and the vegetable compartment 5 are cooled.

  Further, if the upper passage 9 is not provided with the divided passages 32a and 32b, the damper 23 opens when the cooler 11 is clogged and the air volume of the upper passage 9 from the blower fan 10 to the discharge port 9a of the ice making chamber 25 decreases. When the blower fan 24 is driven, a reverse flow that sucks cold air from the discharge port 9a may occur. However, since the cool air sent from the blower fan 10 is immediately branched by the divided passage 32a and the divided passage 32b, the backflow from the discharge port 9a can be reliably prevented and the cooling efficiency of the refrigerator 1 can be improved.

  According to this embodiment, the same effect as that of the first embodiment can be obtained. Moreover, since the upper channel | path 9 has the division | segmentation channel | paths 32a and 32b, while being able to guide cold to the refrigeration channel | path 8 smoothly, overcooling of the freezer compartments 6 and 26 and the ice making chamber 25 can be reduced.

  In the present embodiment, the upper passage 9 may be divided in the front-rear direction by the partition wall 32c, and the division passage 32a may be arranged behind the division passage 32b.

<Third Embodiment>
Next, FIG. 8 shows a front view of the main body 2 of the refrigerator 1 of the third embodiment, and FIG. 9 shows a cross-sectional view taken along the line CC in FIG. For convenience of explanation, the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS. This embodiment is different from the first embodiment in that a blower fan (second blower) 33 is provided. Other parts are the same as those in the first embodiment.

  The blower fan 33 is provided behind the discharge port 29d. Cold air is discharged into the freezer compartment 6 by driving the cooler 11, the blower fan 10, and the blower fan 33. At this time, even if the discharge port 29 d is separated from the blower fan 10, the cool air is reliably discharged from the discharge port 29 d into the freezer compartment 6 by the blower fan 33. Thereby, cold air is dispersed and discharged from the discharge ports 29a to 29d, and the temperature in the freezer compartment 6 can be made uniform. A plurality of discharge ports 29d may be provided at the right end of the freezer compartment 6.

  According to this embodiment, the same effect as that of the first embodiment can be obtained. Moreover, the temperature in the freezer compartment 6 can be equalized by providing the blower fan 33. In addition, you may provide the ventilation fan 33 in 2nd Embodiment.

  According to this invention, it can utilize for the refrigerator provided with the cold air | gas channel | path.

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Main-body part 3 Heat insulation box 4 Refrigerating room (1st refrigerating room)
4b, 4c, 4d, 4e Shelf 4f Communication port 5 Vegetable room (second refrigeration room)
5a Door 5b Side wall 5c Rear wall 5d Avoidance part 6 Freezer compartment 6a Door 6b, 6c, 6d Storage case 7 Cold air passage 8 Refrigerating passage 8a, 8b, 8c, 8d, 8e, 8f Discharge port 9 Upper passage 9a, 9b Discharge port 9c Return port 9d Right side wall 10 Blower fan 11 Cooler 12 Cooler room 12a Inclined surface 12b Upper wall 13 Heat insulating material 14 Outer box 15 Inner box 17 Storage case 18, 19, 20 Partition 21 Freezing compartment 23 Damper 24 Blower fan 25 Ice making room 25a Door 25b Ice storage case 26 Freezing room 26a Door 26b Storage case 27 Partition plate 29 Lower passage 29a, 29b, 29c, 29d Discharge port 30 Machine room 31 Compressor 32a Division passage 32b Division passage 33 Blower fan (second blower) )
34 Return passage 35, 36 Partition 50 Storage case 51 Small case 70 Chilled chamber 70a Storage case 71 Storage case 72 Water storage tank

Claims (5)

A first refrigerating room maintained at a refrigerating temperature; a freezing room disposed below the first refrigerating room and maintained at a refrigerating temperature; and between the first refrigerating room and the freezing room, A second refrigerating chamber that is unevenly distributed and maintained at the refrigerating temperature, and is disposed between the first refrigerating chamber and the freezing chamber adjacent to the side of the second refrigerating chamber and maintained at the refrigerating temperature. In a refrigerator comprising a freezing compartment and a cold air passage in which a first blower and a cooler are arranged,
The cool air passage extends upwardly from the cooler chamber through the rear of the freezer compartment, avoiding the rear of the second refrigerator compartment and the cooler chamber provided behind the freezer chamber by installing the cooler. An upper passage, and discharges cold air to the first refrigerator compartment, the freezing compartment, and the freezer compartment through the cold passage,
A communication port for communicating between the first refrigerator compartment and the second refrigerator compartment, and a return passage connected from the second refrigerator compartment to the cooler chamber, the cold air flowing through the first refrigerator compartment is connected to the communication outlet; The refrigerator which returns to the said cooler room via a 2nd refrigerator compartment and the said return channel | path.   The cooler chamber is provided behind the freezer compartment from below the freezer compartment to below the second refrigerator compartment, and a side wall on the second refrigerator compartment side of the upper passage, and an upper wall of the cooler chamber, The refrigerator according to claim 1, wherein the two are connected by an inclined surface. The rear part of the partition wall in which the said inclined surface was formed is provided with the avoidance part which avoids interference with the said inclined surface, and the said avoidance part is filled with the heat insulating material, It is characterized by the above-mentioned. Refrigerator.   The cold air passage has a lower passage disposed in front of the cooler chamber via a partition plate, and branches into the upper passage and the lower passage downstream of the first blower, and the first blower is in front projection. The refrigerator according to any one of claims 1 to 3, wherein the refrigerator is arranged at a position overlapping a partition portion that partitions the freezing compartment portion and the freezer compartment. Wherein the upper passage is provided a first divided path and the second divided path divided by vertically extending partition wall, discharge ports for discharging cold air into the freezing section portion is provided on the first divided path The refrigerator according to any one of claims 1 to 4, wherein cold air is circulated to the first refrigerator compartment through the second divided passage.

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