JP2017150703A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inhibit dew condensation at an undersurface of a shelf board.SOLUTION: A refrigerator includes: a ventilation port through which cool air discharged from a discharge port provided in the shelf board passes; and a wind direction member for changing a flow of the cool air passing through the ventilation port provided in the shelf board relative to a direction immediately before the cool air has entered the ventilation port.SELECTED DRAWING: Figure 3

Description

  The examples relate to refrigerators.

  Some refrigerators have shelves. The shelf board is used for food, and is stored in a storage chamber. A discharge port is provided in the rear wall of the storage chamber, and cold air is discharged from the discharge port into the storage chamber.

Japanese Patent Application No. 2006-003508

  In the case of the refrigerator, the cool air from the discharge port flows from the rear to the front along the upper surface of the shelf board. Therefore, since the upper surface of the shelf board is cooled more strongly than the lower surface, condensation may occur on the lower surface of the shelf board.

  The refrigerator of the embodiment includes a shelf plate provided in the storage chamber on which food is placed, a discharge port that discharges cold air into the storage chamber, and a ventilation port that is provided in the shelf plate and through which the cool air discharged from the discharge port passes And a wind direction member that is provided on the shelf plate and changes the direction of the flow of the cold air that has passed through the ventilation port with respect to the direction immediately before entering the ventilation port.

The figure which shows Example 1 (sectional drawing which shows the internal structure of a refrigerator) Figure showing the cover plate The figure which expands and shows the rear end part of a lid plate The figure which shows Example 2 (figure 2 equivalent figure) 3 equivalent figure

  The cabinet 1 in FIG. 1 has a vertically long rectangular box shape, and the front surface is open. The cabinet 1 has an inner box housed in an outer box, and a heat insulating material is interposed between the outer box and the inner box. A partition wall 2 is fixed in the cabinet 1. The partition wall 2 has a heat insulating property, and a freezer compartment 3 is formed in the cabinet 1 on the partition wall 2. An upper shelf plate 4 is mounted in the freezer compartment 3, and food for frozen storage is placed on the upper shelf plate 4.

  In the cabinet 1, as shown in FIG. 1, the refrigerator compartment 5 is formed under the partition wall 2. As shown in FIG. The refrigerator compartment 5 corresponds to a storage compartment, and three normal shelf boards 6 are mounted in the refrigerator compartment 5. Each of these three normal shelf boards 6 is made of a transparent synthetic resin, and is arranged at intervals in the vertical direction. Each of these three normal shelf boards 6 is horizontal, and each of the three normal shelf boards 6 is loaded with food for refrigerated storage.

  In the cabinet 1, as shown in FIG. 1, a container cover 7 is mounted in the refrigerator compartment 5. The container cover 7 is a horizontal one disposed under the lowermost normal shelf 6 with a gap, and corresponds to a shelf.

  As shown in FIG. 2, the container cover 7 has a transparent glass window plate 8 and an opaque synthetic resin window frame 9. The window plate 8 is for placing food for refrigerated storage and has a horizontally long rectangular shape. The window frame 9 has a horizontally long rectangular frame shape surrounding the window plate 8. The front plate portion along the front end surface of the window plate 8, the left plate portion along the left end surface of the window plate 8, and the right end of the window plate 8. A right plate portion along the surface and a rear plate portion along the rear end surface of the window plate 8 are provided.

  As shown in FIG. 1, a vegetable container 10 is stored in the refrigerator compartment 5. The vegetable container 10 is made of a transparent synthetic resin and is disposed under the container cover 7. The vegetable container 10 has an open top surface, and can be operated between a housed state housed in the refrigerator compartment 5 and a drawer state drawn forward from the refrigerator compartment 5. This vegetable container 10 stores vegetables for refrigerated storage, and the container cover 7 covers the upper surface of the vegetable container 10 from above with the vegetable container 10 being stored. This vegetable container 10 corresponds to a food container.

  As shown in FIG. 1, an F door 11 and an R door 12 are attached to the cabinet 1. The F door 11 is disposed in front of the freezer compartment 3 and is operable between a closed state in which the front surface of the freezer compartment 3 is closed in an airtight state and an open state in which the front surface of the freezer compartment 3 is opened. The R door 12 is disposed in front of the refrigerator compartment 5 and is operable between a closed state in which the front surface of the refrigerator compartment 5 is closed in an airtight state and an open state in which the front surface of the refrigerator compartment 5 is opened.

  As shown in FIG. 1, an R outlet side duct 13 and an R inlet side duct are embedded in the rear wall of the cabinet 1. Each of the R outlet side duct 13 and the R inlet side duct is disposed after the refrigerating chamber 5, and the R inlet side duct is located in the refrigerating chamber 5 and has an R inlet. The R outlet side duct 13 has a vertically long straight shape, and has three R outlets 14 arranged in the vertical direction. Each of these three R outlets 14 has a cylindrical shape that is inclined downward from the rear to the front, and one of the three R outlets 14 is an upper normal shelf 6 and a middle normal shelf. 6, one of the middle stages is arranged between the middle normal shelf board 6 and the lower ordinary shelf board 6, and the lower stage is arranged between the lower ordinary shelf board 6 and the container cover 7. . The lower R outlet 14 corresponds to a discharge port.

  As shown in FIG. 1, a cooling chamber 15 is formed in the rear wall of the cabinet 1. The cooling chamber 15 is disposed after the freezing chamber 3, and the R outlet side duct 13 and the R inlet side duct are connected via the cooling chamber 15. The R outlet side duct 13, the R inlet side duct, and the cooling chamber 15 constitute an R duct that circulates cold air in the refrigerator compartment 5.

  As shown in FIG. 1, a fan device 16 is accommodated in the cooling chamber 15. When the fan device 16 is in an operating state, air in the refrigerator compartment 5 is sucked from the R inlet into the R inlet duct. This air enters the R outlet side duct 13 from the R inlet side duct through the cooling chamber 15, and flows from the top to the bottom along the R outlet side duct 13. This air is discharged into the refrigerating chamber 5 from each of the upper R outlet 14, the middle R outlet 14 and the lower R outlet 14, and each of the three R outlets 14 descends from the rear to the front. Air is discharged diagonally downward.

  An F inlet side duct and an F outlet side duct are embedded in the rear wall of the cabinet 1. Each of the F inlet side duct and the F outlet side duct is disposed after the freezer compartment 3, and the F inlet duct is located in the freezer compartment 3 and has an F inlet formed therein. Is located in the freezer compartment 3 and has an F outlet.

  The F inlet side duct and the F outlet side duct are connected via the cooling chamber 15, and the air in the freezer compartment 3 is sucked from the F inlet into the F inlet side duct when the fan device 16 is in operation. The air enters the F outlet side duct from the F inlet side duct through the cooling chamber 15 and is discharged from the F outlet into the freezing chamber 3. The F inlet side duct, the F outlet side duct, and the cooling chamber 15 constitute an F duct that circulates cold air in the freezer compartment 3.

  As shown in FIG. 1, a machine room 17 is formed in the cabinet 1. The machine room 17 is disposed after the vegetable container 10 and has a rear surface opened. A compressor 18 and a condenser of the refrigeration cycle are accommodated in the machine room 17, and the condenser is connected between the discharge port and the suction port of the compressor 18.

  As shown in FIG. 1, an evaporator 19 is accommodated in the cooling chamber 15. The evaporator 19 is connected between the discharge port and the suction port of the compressor 18 so as to be located downstream of the condenser. When the fan device 16 and the compressor 18 are in operation, the evaporator 19 and the refrigerator 5 Each of the air from the inside is cooled in response to contact with the evaporator 19 in the cooling chamber 15, cold air is discharged from the F outlet of the F duct into the freezing chamber 3, and the three R outlets 14 of the R duct are discharged. Cold air is discharged into the refrigerator compartment 5 from each.

  As shown in FIG. 1, the cabinet 1 is formed with a wind direction adjusting portion 20 located behind the container cover 7. This wind direction adjustment part 20 consists of a part of inner box, and is arrange | positioned below compared with the R exit 14 of the lower stage. As shown in FIG. 3, the wind direction adjusting unit 20 is inclined obliquely downwardly descending from the rear to the front, and the obliquely downward inclination angle θw of the wind direction adjusting unit 20 is oblique to the lower R exit 14. It is set smaller than the downward inclination angle θr (see FIG. 1). The wind direction adjusting unit 20 is subjected to cool air discharged from the lower R outlet 14, and the cool air strikes the wind direction adjusting unit 20, so that the flow direction changes in the horizontal direction compared to the inclination angle θr of the R outlet 14. To do.

  As shown in FIG. 2, a plurality of ventilation holes 21 are formed in the container cover 7. The plurality of vent holes 21 are located in the rear plate portion of the window frame 9 and are arranged in a line in the left-right direction. Each of the plurality of ventilation holes 21 has a rectangular shape whose width in the front-rear direction is larger than the width in the left-right direction when viewed from above. As shown in FIG. It penetrates the plate part in the vertical direction. The plurality of ventilation openings 21 are arranged in front of the wind direction adjustment unit 20, and a part of the cool air hitting the wind direction adjustment unit 20 passes through the plurality of ventilation openings 21 (see arrow A), and the wind direction adjustment unit 20. The remainder of the cold air that has not entered the plurality of vent holes 21 flows from the rear to the front along the upper surface of the container cover 7 (see arrow B).

  As shown in FIG. 3, a cold air guide 22 is formed on the container cover 7 at the rear plate portion of the window frame 9. The width dimension of the cold air guide 22 in the left-right direction is set to a length from one of the left ends to one of the right ends of the plurality of ventilation openings 21, and the cold air guide 22 covers the plurality of ventilation openings 21 from below. ing. The cold air guide 22 corresponds to a wind direction member.

  As shown in FIG. 3, the cool air guide 22 has a first descending inclined portion 23, a second descending inclined portion 24, and an ascending inclined portion 25. The first descending slope portion 23 is the rearmost portion of the first descending slope portion 23 to the ascending slope portion 25, and has a flat plate shape that slopes downward from the rear to the front. The second downward inclined portion 24 is a portion located in front of the first downward inclined portion 23. The second downward inclined portion 24 has a flat plate shape inclined downward from the rear to the front, and the inclination angle of the second downward inclined portion 24 is larger than the inclination angle of the first downward inclined portion 23. It is set small. The ascending inclined portion 25 is a portion located in front of the second descending inclined portion 24 and has a flat plate shape that is inclined upward from the rear to the front. Each of the first downward inclined portion 23 and the second downward inclined portion 24 corresponds to a downward inclined portion.

  As shown in FIG. 3, the cold air guide 22 contacts the cold air that has passed through the plurality of vent holes 21. This cold air changes its flow direction immediately before entering the vent 21 in response to the contact with the cold air guide 22, and a part of the cold air whose flow direction has changed changes from the upper surface of the container cover 7 into the vegetable container 10. The remainder flows horizontally from the back to the front along the lower surface of the container cover 7 (see arrow C).

According to the said Example 1, there exists the following effect.
Since the air vent 21 and the cold air guide 22 are provided in the container cover 7, a part of the cold air discharged from the lower R outlet 14 into the refrigerating chamber 5 passes through the air vent 21 and goes from the top to the bottom of the container cover 7 The traveling direction is changed with respect to immediately before the air enters the air vent 21 in response to the cold air that has passed around and has passed through the air vent 21 in contact with the cold air guide 22. Accordingly, the cooling strength of the upper surface of the container cover 7 is weakened compared to the case where all of the cold air from the lower R outlet 14 flows from the rear to the front along the upper surface of the container cover 7. Condensation is suppressed.

  The cool air guide 22 is configured to flow the cold air that has passed through the vent hole 21 in the horizontal direction along the lower surface of the container cover 7. Therefore, since the lower surface of the container cover 7 is intensively cooled, dew condensation on the lower surface of the container cover 7 is further suppressed. In addition, since the cold air guide 22 is provided with the first downward inclined portion 23, the second downward inclined portion 24, and the upward inclined portion 25, the flow of the cold air that has passed through the vent hole 21 smoothly changes from the diagonally downward direction to the horizontal direction. To do.

  Since the air vent 21 and the cold air guide 22 are provided in the container cover 7 on the vegetable container 10, dew condensation may occur on the lower surface of the container cover 7 although the lower surface of the container cover 7 is exposed to moisture from inside the vegetable container 10. It can be suppressed.

  The flow of cold air was changed in the horizontal direction in response to the cold air from the lower R outlet 14 being applied to the wind direction adjusting unit 20 of the cabinet 1, and then the cold air was introduced into the air outlet 21. Therefore, since the angle of the flow of the cool air changed by the cool air guide 22 is small, the cool air from the cool air guide 22 easily flows in the horizontal direction along the lower surface of the container cover 7.

  As shown in FIG. 4, ribs 31 are formed on the container cover 7 at the rear plate portion of the window frame 9. The ribs 31 are disposed in front of the plurality of ventilation holes 21 and protrude upward from the rear plate portion of the window frame 9 as shown in FIG. The rib 31 corresponds to a protruding portion.

According to the said Example 2, there exist the following effects.
Since the rib 31 is provided on the container cover 7, it is prevented that the water falls into the vegetable container 10 through the vent 21 when the water spills from the food on the window plate 8 of the container cover 7. The small food on the window plate 8 of the cover 7 is also prevented from falling into the vegetable container 10 through the vent 21.

In the first and second embodiments, the upper shelf board 4 or the normal shelf board 6 may be provided with the vent hole 21 and the cold air guide 22.
As mentioned above, although the Example of this invention was described, this Example is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention and are also included in the invention described in the claims and the equivalent scope thereof.

  5 is a refrigeration room (storage room), 7 is a container cover (shelf), 10 is a vegetable container (food container), 14 is an R outlet (discharge port), 20 is a wind direction adjusting unit, 21 is a ventilation port, and 22 is cold air A guide (wind direction member), 23 is a first downward inclined portion (downward inclined portion), 24 is a second downward inclined portion (downward inclined portion), 25 is an upward inclined portion, and 31 is a rib (projecting portion).

Claims (6)

A shelf board provided in the storage room on which food is placed;
A discharge port for discharging cool air into the storage chamber;
Ventilation opening provided on the shelf plate and through which the cold air discharged from the discharge opening passes,
The refrigerator provided with the wind direction member which is provided in the said shelf board and changes the flow of the cold air which passed the said ventilation opening with respect to the direction just before approaching into the said ventilation opening.   The refrigerator according to claim 1, wherein the airflow direction member changes the flow of the cold air to a direction along the shelf board. The cold air enters obliquely downward in which the cold air descends from the rear to the front,
The wind direction member is provided with “a downward inclined portion that descends from the rear to the front” and “an upward inclined portion that is located in front of the downward inclined portion and rises from the rear to the front”. The refrigerator according to claim 2.   The refrigerator according to any one of claims 1 to 3, wherein a food container having an upper surface is provided below the shelf board in the storage chamber. The discharge port discharges cold air obliquely downwardly descending from the rear to the front,
In the storage chamber, a wind direction adjusting unit that changes the flow of the cold air discharged from the discharge port in the horizontal direction is provided,
The refrigerator according to any one of claims 1 to 4, wherein cold air whose flow direction has been changed by the wind direction adjusting unit enters the ventilation port. The vent is arranged at the rear end of the shelf,
The refrigerator according to any one of claims 1 to 5, wherein the shelf plate is provided with a protruding portion that is positioned in front of the ventilation opening and protrudes upward.

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