JP6416519B2 - 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. In this refrigerator, a refrigeration room for refrigerated storage of stored items is arranged at the top of the heat insulating box, and a vegetable room for refrigerated storage of stored items at a higher temperature than the refrigerated room is arranged below the refrigeration chamber. 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, the cold air is discharged from the discharge port of the refrigerator compartment 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. In the vegetable room, stored items are refrigerated and stored at a higher temperature than the refrigerator room, and therefore the temperature of the cold air may rise when the cold air circulates behind the vegetable room. 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 according to the present invention includes a refrigerating room maintained at a refrigerating temperature, a freezing room disposed below the refrigerating room and maintained at a freezing temperature, the refrigerating room, and the freezing room. Between the vegetable room that is arranged in one of the left and right directions and communicates with the refrigerator room and is maintained at a refrigeration temperature higher than the refrigerator room, and adjacent to the side of the vegetable room A refrigeration compartment portion disposed between the refrigerator compartment and the freezer compartment and maintained at a freezing temperature; and a cold air passage provided with a blower fan and a cooler, wherein the cold air is refrigerated through the cold air passage, In the refrigerator discharging to the freezing compartment and the freezing compartment, the cool air passage is provided with the cooler, and is provided behind the freezing compartment from below the freezing compartment to the bottom of the vegetable compartment. Avoiding the room and the rear of the vegetable room An upper passage extending upward from the room through the rear of the freezing compartment, and a return passage for returning cold air from the vegetable compartment to the cooler compartment, and cold air flows into the cooler compartment from the return passage An inflow port is provided at a side end of the cooler chamber opposite to the upper passage.

  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.

  Moreover, the present invention is characterized in that, in the refrigerator having the above-described configuration, one side wall of the upper passage and the upper wall of the cooler chamber are connected by an airflow guide portion formed of an inclined surface.

  In the refrigerator having the above-described configuration, the straight line connecting the blower fan and the inflow port is substantially parallel to the airflow guide unit.

  Further, the present invention is characterized in that, in the refrigerator having the above-described configuration, a blower fan is disposed vertically below the airflow guide portion.

  In the refrigerator having the above-described configuration, the return passage is formed to extend in the vertical direction along the vicinity of the side wall of the freezing chamber opposite to the upper passage.

  According to the present invention, the cool air passage has a cooler chamber in which the cooler is installed, an upper passage extending upward from the cooler chamber, and a return passage for returning cold air from the vegetable compartment to the cooler chamber. The cooler chamber is provided from the lower side of the freezing compartment to the lower side of the vegetable compartment, and the upper passage is provided behind the freezing compartment, avoiding the rear of the vegetable compartment. For this reason, the cold air produced | generated with the cooler is supplied to a refrigerator compartment, a freezing compartment, and a freezer compartment through the upper channel | path arrange | positioned avoiding the back of a comparatively high temperature vegetable compartment. For this reason, the temperature rise of the cold air flowing through the upper passage can be suppressed.

  In addition, an inflow port through which cool air flows from the return passage into the cooler chamber is provided at the side end of the cooler chamber opposite to the upper passage. By this. The airflow can be guided to the upper passage without stopping the airflow in the cooler chamber, and the heat exchange efficiency of the cooler can be improved. Therefore, 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 upper 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 perspective view which shows the lower part of the upper channel | path of the refrigerator of 3rd Embodiment of this invention, and a cooler chamber.

<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). In the upper part of the refrigerator 1, a refrigerator compartment 4 for storing stored items in a refrigerator is arranged. 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).

  Between the refrigerator compartment 4 and the freezer compartment 6, the vegetable compartment 5 is arranged in the right direction. The vegetable compartment 5 is maintained at a refrigeration temperature higher than that of the refrigeration compartment 4 to store stored items such as vegetables in a refrigerator, and is opened and closed by a drawer-type door 5a integrated with the 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 foam 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 portion 18 formed of a heat insulating wall disposed horizontally. The vegetable compartment 5 and the freezer compartment 6 are partitioned by a partition portion 19 made of a heat insulating wall arranged horizontally. The vegetable compartment 5 and the freezing compartment 21 are partitioned by a partition portion 20 made of a heat insulating wall arranged vertically.

  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 out downward from the vegetable compartment 5 along the side wall of the freezing compartment 6 opposite to the upper passage 9 and is connected via the inlet 12c of the cooler compartment 12 (see FIG. 5). 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 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 front surfaces of the upper passage 9 and the lower passage 29 below the damper 23 are covered with a panel 7a. Further, the width of the panel 7 a disposed on the front surface of the upper passage 9 below the damper 23 is formed to be less than half the width of the main body 2. Further, the front surface of the refrigeration passage 8 above the damper 23 of the upper passage 9 is covered with a panel 7b.

  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 side wall 9d on the right side of the upper passage 9 and the upper wall 12b of the cooler chamber 12 are connected by an airflow guide portion 12a formed of an inclined surface. 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.

  An inlet 12c is provided at the lower end portion of the side wall 12d opposite to the upper passage 9 of the cooler chamber 12. The inflow port 12 c is connected to the return passage 34. A straight line D connecting the blower fan 10 and the inlet 12c is substantially parallel to the airflow guide portion 12a. Thus, when the cool air returns to the cooler chamber 12 through the inlet 12c, the air flow at the right end of the cooler chamber 12 can be guided to the upper passage 9 without stopping.

  Further, an avoiding portion 5d that avoids interference with the airflow guide portion 12a is provided between the rear portion of the partition portion 19 that forms the bottom wall of the vegetable compartment 5 and the rear portion of the partition portion 20 that forms the left side wall. 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 cold air discharged from the discharge ports 29a, 29b, and 29c 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 part to the rear part in the vegetable compartment 5, and returns from the inlet 12 c to the cooler room 12 through the return passage 34. Thereby, cooling in the vegetable compartment 5 is performed. At this time, since the inflow port 12c is provided at the lower end of the side wall 12d of the cooler chamber 12, the air flow in the cooler chamber 12 can be guided to the upper passage 9 without stopping.

  According to the present embodiment, the cool air passage 7 has a cooler chamber 12 in which the cooler 11 is installed, an upper passage 9 extending upward from the cooler chamber 12, and a return passage 34 for returning cold air from the vegetable chamber 5 to the cooler chamber 12. And have. 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 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 comparatively high temperature vegetable compartment 5. FIG. For this reason, the temperature rise of the cold air flowing through the upper passage 9 can be suppressed.

  In addition, an inlet 12c through which cool air flows from the return passage 34 into the cooler chamber 12 is provided at a side end (side wall 12d) opposite to the upper passage 9 of the cooler chamber 12. By this. The airflow can be guided to the upper passage 9 without stopping the airflow in the cooler chamber 12, and the heat exchange efficiency of the cooler 11 can be improved. Therefore, the cooling capacity of the refrigerator 1 can be improved.

  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 airflow guide portion 12a, the airflow in the cooler chamber 12 is not further retained in the cooler chamber 12 by the upper passage 9. Can lead to.

  Further, since the straight line D connecting the blower fan 10 and the inlet 12c is substantially parallel to the airflow guide portion 12a, the airflow in the cooler chamber 12 is not retained in the cooler chamber 12 in the upper passage 9 more. Can lead to.

  Further, since the return passage 34 is formed to extend in the vertical direction along the vicinity of the side wall of the freezer compartment 6 on the side opposite to the upper passage 9, the cooler chamber 12 is formed to be large and the cooler 11 having a large heat exchange area. Can be installed.

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.

  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 perspective view of the lower part of the upper passage 9 and the cooler chamber 12 of the refrigerator 1 of the third embodiment. For convenience of explanation, the same reference numerals are assigned to the same parts as those in the first embodiment shown in FIGS. This embodiment differs in the arrangement | positioning location of the ventilation fan 10 with respect to 1st Embodiment. Other parts are the same as those in the first embodiment.

  The blower fan 10 is disposed vertically below the airflow guide portion 12a. For this reason, the airflow at the right end of the cooler chamber 12 can be guided to the upper passage 9 that is arranged to be biased to the left without stopping. Therefore, the air flow in the cooler chamber 12 can be heat exchanged with the entire cooler 11, and the heat exchange efficiency of the cooler 11 can be improved.

  According to this embodiment, the same effects as those of the first embodiment can be obtained. Further, since the blower fan 10 is disposed vertically below the airflow guide portion 12a, the heat exchange efficiency of the cold air passage 7 can be further improved.

  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 Refrigeration room 4b, 4c, 4d, 4e Shelf 4f Communication port 5 Vegetable room 5a Door 5b Side wall 5c Rear wall 5d Avoidance part 6 Freezer room 6a Door 6b, 6c, 6d Storage case 7 Cold air Passage 8 Refrigeration Passage 8a, 8b, 8c, 8d, 8e, 8f Discharge Port 9 Upper Passage 9a, 9b Discharge Port 9c Return Port 9d Side Wall 10 Blower Fan 11 Cooler 12 Cooler Room 12a Air Flow Guide 12b Upper Wall 12c Flow Inlet 12d Side wall 13 Foam insulation 14 Outer box 15 Inner box 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 part Passage 29a, 29b, 29c, 29d Discharge port 30 Machine room 31 Compressor 32a Split passage 32b Split passage 2c partition walls 34 return passages 35, 36 partition part 50 accommodating case 51 small case 70 chilled compartment 70a accommodating case 71 accommodating case 72 holding tank D line

Claims (5)

A refrigeration room maintained at a refrigeration temperature, a freezing room disposed below the refrigeration room and maintained at a refrigeration temperature, and disposed between the refrigeration room and the freezing room in one of the left and right directions. And a vegetable room that communicates with the refrigeration room and is maintained at a refrigeration temperature higher than that of the refrigeration room, and is arranged between the refrigeration room and the freezing room adjacent to the side of the vegetable room. And a refrigeration compartment that is maintained at a freezing temperature, and a cold air passage that is provided with a blower fan and a cooler, and discharges cold air to the refrigerator compartment, the freezer compartment, and the freezer compartment through the cold air passage, and In the refrigerator where the cold air from the refrigerator compartment is discharged into the vegetable compartment,
The cool air passage is provided with the cooler, a cooler chamber provided at the rear of the freezer compartment from below the freezer compartment to below the vegetable compartment, and upward from the cooler chamber to the refrigerating chamber An upper passage disposed behind the freezing compartment without extending behind the vegetable compartment and a return passage for returning cold air from the vegetable compartment to the cooler compartment;
A refrigerator characterized in that an inlet through which cold air flows from the return passage into the cooler chamber is provided at a side end portion of the cooler chamber opposite to the upper passage.   2. The refrigerator according to claim 1, wherein one side wall of the upper passage and the upper wall of the cooler chamber are connected by an airflow guide portion including an inclined surface.   The refrigerator according to claim 2, wherein a straight line connecting the blower fan and the inflow port is substantially parallel to the air flow guide unit.   The refrigerator according to claim 2 or 3, wherein a blower fan is arranged vertically below the airflow guide section.   The refrigerator according to any one of claims 1 to 4, wherein the return passage is formed to extend in the vertical direction along the vicinity of the side wall of the freezer compartment on the side opposite to the upper passage.

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