WO2019244709A1

WO2019244709A1 - Shielding device and refrigerator equipped with same

Info

Publication number: WO2019244709A1
Application number: PCT/JP2019/023067
Authority: WO
Inventors: 豊嶋　昌志; 栄生岩上; 肇小松
Original assignee: アクア株式会社
Priority date: 2018-06-20
Filing date: 2019-06-11
Publication date: 2019-12-26
Also published as: JPWO2019244709A1; CN112313462A; CN112313462B

Abstract

Provided is a shielding device and a refrigerator with which the occupied volume can be reduced. The shielding device 70 is a device for appropriately blocking an air passage in which cold air is blown in the interior of a refrigerator 10. Specifically, the shielding device 70 comprises a plurality of rotary shield walls 71 surrounding, from the outside in the radial direction, a blower 47 that rotates by means of a blower motor, and a shield wall drive mechanism 60 for driving an opening/closing operation of the rotary shield walls 71. Furthermore, the shielding device 70 is arranged in the passage in which cold air is blown, and the shield wall drive mechanism 60 is arranged in a region partitioned from the air passage.

Description

Shielding device and refrigerator provided with the same

The present invention relates to a shielding device and a refrigerator including the same, and more particularly, to a shielding device that appropriately blocks an air passage from a cooling room to a storage room, and a refrigerator including the same.

冷蔵庫 Conventionally, a refrigerator as described in Patent Literature 1 that appropriately cools a plurality of storage rooms with one cooler is known.

FIG. 51 schematically shows the refrigerator 1100 described in this document. In a refrigerator 1100 shown in this figure, a refrigerator compartment 1101, a freezer compartment 1102, and a vegetable compartment 1103 are formed from above. A cooling chamber 1104 in which a cooler 1108 is housed is formed at the back side of the freezing room 1102, and a partition wall 1105 that separates the cooling room 1104 and the freezing room 1102 supplies cool air to each storage room. Opening 1106 is formed. A blower fan 1107 that blows cool air is disposed in the opening 1106, and a blower cover 1110 that covers the blower fan 1107 is disposed on the freezing room 1102 side. A damper 1114 is provided in the middle of an air passage 1109 through which the cool air supplied to the refrigerator compartment 1101 flows.

With reference to FIG. 52, the above-described blower cover 1110 will be described in detail. The blower cover 1110 is formed with a recess 1111 having a substantially square shape, and an opening 1113 is formed by partially notching the upper portion of the recess 1111. Here, when the blower cover 1110 covers the blower fan 1107, the opening 1113 of the blower cover 1110 communicates with the air passage 1109 on the refrigerator body side.

冷蔵庫 The refrigerator 1100 having the above configuration operates as follows. First, when cooling both the refrigerator compartment 1101 and the freezer compartment 1102, the blower cover 1110 is separated from the blower fan 1107, the damper 1114 is opened, and the blower fan 1107 is rotated in this state. Then, a part of the cool air cooled by the cooler 1108 inside the cooling room 1104 is blown to the freezing room 1102 by the blowing air of the blowing fan 1107. Another part of the cool air is sent to the refrigerator compartment 1101 via the air passage 1109, the damper 1114 and the air passage 1109. Thus, both the freezer compartment 1102 and the refrigerator compartment 1101 are cooled.

On the other hand, when cooling only the refrigerator compartment 1101, the blower fan 1107 is covered with a blower cover 1110, the damper 1114 is opened, and in this state, the cool air cooled by the cooler 1108 is blown by the blower fan 1107. When the blower cover 1110 is closed, the opening 1113 formed at the top of the blower cover 1110 communicates with the air passage 1109. Therefore, the cool air blown by the blower fan 1107 is supplied to the refrigerator compartment 1101 via the opening 1113, the damper 1114, and the air passage 1109 described above.

As described above, by using the blower cover 1110 in which the opening 1113 is formed, a single cooler 1108 can appropriately cool a plurality of storage rooms.

JP 2013-2664 A

However, the blower cover 1110 having the above configuration closes the opening 1106 of the cooling chamber 1104 by moving backward, and releases the opening 1106 of the cooling chamber 1104 by moving forward. Further, a drive mechanism for moving the blower cover 1110 in the front-rear direction is required. If cool air is blown onto the drive mechanism, the drive mechanism may freeze and may not be able to open and close the blower cover 1110.

Furthermore, the blower cover 1110 needs a space for performing opening and closing operations along the front-back direction. Therefore, a large space is required inside the refrigerator 1100 for the blower cover 1110 to perform the opening and closing operation. As a result, the internal volume of the freezer compartment 1102 formed in front of the blower cover 1110 is compressed, and there is a problem in that the amount of stored objects that can be stored in the freezer compartment 1102 is limited. Furthermore, a driving sound is generated when the blower cover 1110 is moved in the front-rear direction by the motor, and if the driving sound is too loud, it may be uncomfortable for the user.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a shielding device that does not freeze the drive mechanism, does not press down the internal volume of the refrigerator, and has a small drive sound, and a shield device. It is to provide a refrigerator.

The shielding device of the present invention is a shielding device that closes an air path through which cool air is blown inside a refrigerator, and a rotating shielding wall that surrounds the blower from a radial outside, and a shielding wall drive that drives the rotating shielding wall. And the shielding wall drive mechanism is provided in a region outside the air path.

Further, in the shielding device of the present invention, the shielding wall drive mechanism may include a disk-shaped rotating plate having a moving shaft slide groove formed therein, and a moving shaft engaged with the moving shaft slide groove. A cam rotatably connected to a wall, and a drive motor for rotating the rotating plate, wherein the cam opens and closes the rotary shielding wall by the moving shaft sliding in the moving shaft slide groove. It is characterized by making it.

In the shield device of the present invention, the moving shafts of the plurality of cams are engaged with one moving shaft slide groove.

Further, the present invention is a shielding device that closes an air passage through which cool air is blown inside a refrigerator, and is arranged side by side so as to surround a blower from a radial outside, and is configured to open and close the air passage by rotating. And a shielding wall driving mechanism for driving the rotating shielding wall, wherein the shielding wall driving mechanism transmits a driving source and power of the driving source to the rotating shielding wall. And a power transmission mechanism.

Further, the present invention is a shielding device that closes an air passage through which cool air is blown inside a refrigerator, a plurality of rotating shielding walls surrounding a blower from a radial outside, and a shielding wall for driving the rotating shielding wall. And a driving mechanism, wherein a plurality of the shielding wall driving mechanisms are provided.

Further, in the refrigerator of the present invention, a cooler of a refrigeration cycle for cooling air supplied to the storage room via the air passage, and a blower outlet provided with the cooler and connected to the storage room are formed. A cooling chamber, a blower that blows the air supplied from the blowing port toward the storage chamber, and the shielding device that at least partially blocks the air path.

According to the present invention, in the shielding device, since the shielding wall driving mechanism that drives the rotating shielding wall is disposed outside the air path through which the cool air is blown, it is possible to prevent the shielding wall driving mechanism from freezing. it can.

Further, in the shielding device of the present invention, the shielding wall drive mechanism may include a disk-shaped rotating plate having a moving shaft slide groove formed therein, and a moving shaft engaged with the moving shaft slide groove. A cam rotatably connected to a wall, and a drive motor for rotating the rotating plate, wherein the cam opens and closes the rotary shielding wall by the moving shaft sliding in the moving shaft slide groove. It is characterized by making it. Thereby, the shielding device can easily drive the opening / closing operation of the rotating shielding wall by the rotating operation of the rotating plate, so that the members constituting the shielding device move in the front-back direction compared to the conventional shielding device. In addition, the volume occupied by the shielding device can be reduced, and the internal volume is not pressed. Further, in the shielding device of the present invention, the moving shaft of the cam slides the moving shaft slide groove to open and close the rotary shielding wall, so that the generation of driving noise can be greatly reduced.

In the shield device of the present invention, the moving shafts of the plurality of cams are engaged with one moving shaft slide groove. Thus, according to the shielding device of the present invention, the rotary shielding wall is opened and closed by the cam that slides by the rotation of the rotating plate, so that the shielding device becomes thin and a large internal volume of the storage room can be secured. Further, the meandering shape of the slide groove can be made smooth by engaging the moving shafts of the plurality of cams with one slide groove. Therefore, the sliding operation between the slide groove and the moving shaft and the turning operation of the turning shielding wall can be performed smoothly. Further, the number of slide grooves can be reduced, and the configuration of the shielding device can be simplified.

Further, the present invention is a shielding device that closes an air passage through which cool air is blown inside a refrigerator, and is arranged side by side so as to surround a blower from a radial outside, and is configured to open and close the air passage by rotating. And a shielding wall driving mechanism for driving the rotating shielding wall, wherein the shielding wall driving mechanism transmits a driving source and power of the driving source to the rotating shielding wall. And a power transmission mechanism. Thus, according to the shielding device of the present invention, the size of the entire shielding device in the thickness direction can be reduced by opening and closing the air path by the rotating shielding wall surrounding the blower from the surroundings, thereby reducing the size of the entire device. realizable. Further, by transmitting power from the driving source to the turning shield wall using the power transmission mechanism, the opening and closing operation of the turning shield wall can be performed satisfactorily.

Further, the present invention is a shielding device that closes an air passage through which cool air is blown inside a refrigerator, a plurality of rotating shielding walls surrounding a blower from a radial outside, and a shielding wall for driving the rotating shielding wall. And a driving mechanism, wherein a plurality of the shielding wall driving mechanisms are provided. Thus, according to the shielding device of the present invention, by having a plurality of shielding wall driving mechanisms, the rotating shielding walls can be individually operated, and the degree of freedom of the opening and closing operation of the entire rotating shielding wall is improved. can do.

Further, in the refrigerator of the present invention, a cooler of a refrigeration cycle for cooling air supplied to the storage room via the air passage, and a blower outlet provided with the cooler and connected to the storage room are formed. A cooling chamber, a blower that blows the air supplied from the blowing port toward the storage chamber, and the shielding device that at least partially blocks the air path. Accordingly, the internal volume occupied by the shielding device can be reduced, so that a large effective volume of each storage room can be secured. In addition, since the airflow resistance of the shielding device is small, a large amount of air can be obtained with a small amount of energy, and the storage room can be effectively cooled.

It is a front view showing the appearance of the refrigerator concerning a 1st embodiment of the present invention. It is a side sectional view showing the internal composition of the refrigerator concerning a 1st embodiment of the present invention. It is the expanded side sectional view showing the structure near the cooling room of the refrigerator concerning a 1st embodiment of the present invention. It is a figure showing the state where the shielding device adopted by the refrigerator concerning a 1st embodiment of the present invention was assembled, (A) is a perspective view, and (B) is a section seen from cutting plane line AA. It is a figure and (C) is a figure which shows a wind path structure seen from back. It is a figure showing the shielding device concerning a 1st embodiment of the present invention, (A) is an exploded perspective view, and (B) is an exploded sectional view showing a shielding wall drive mechanism. It is a figure showing the shielding device concerning a 1st embodiment of the present invention, (A) is an exploded perspective view showing a shielding device partially, and (B) is a perspective view showing a cam. It is a figure which shows the shielding device which concerns on 1st Embodiment of this invention, (A) is a figure which shows the rotation shielding wall of a shielding device when it sees from the front, (B) shows the structure of a rotating plate when it sees from a back. FIG. It is a figure which shows the fully closed state of the shielding apparatus which concerns on 1st Embodiment of this invention, (A) is a figure which shows a shielding apparatus seen from back, (B) is a cut surface line of FIG. 8 (A). It is sectional drawing of the shielding apparatus seen from BB, (C) is a figure which shows a rotation plate seen from back, (D) is the elements on larger scale of FIG. 8 (B). It is a figure which shows the fully opened state of the shielding apparatus which concerns on 1st Embodiment of this invention, (A) is a figure which shows a shielding apparatus seen from back, (B) is a cut surface line C of FIG.9 (A). It is sectional drawing of the shielding apparatus seen from -C, (C) is a figure which shows a rotating plate seen from back, (D) is the elements on larger scale of FIG. 9 (B). It is a figure which shows the state which supplies cold air only to a lower freezer compartment in the shielding apparatus concerning 1st Embodiment of this invention when it sees from back, (A) is a figure which shows a shielding apparatus, (B) is rotation. It is a figure showing a plate. It is a figure which shows the situation of the air path when supplying cold air only to a lower freezer compartment in the shielding device according to the first embodiment of the present invention when viewed from behind. In the shielding device according to the first embodiment of the present invention, it is a diagram showing a state in which cool air is supplied only to the freezing compartment when viewed from behind, (A) is a diagram showing the shielding device, and (B) is a rotating plate. FIG. It is a figure which shows the state of the air path at the time of supplying cool air only to a freezing room seen from back in the shielding device concerning a 1st embodiment of the present invention. In the shielding device according to the first embodiment of the present invention, it is a diagram showing a state in which cool air is supplied only to the upper freezer compartment as viewed from the rear, (A) is a diagram showing the shielding device, and (B) is a diagram showing rotation. It is a figure showing a plate. It is a figure which shows the state of the air path at the time of supplying cool air only to an upper stage freezing room seen from back in the shielding device concerning a 1st embodiment of the present invention. In the shielding device according to the first embodiment of the present invention, it is a diagram showing a state where cool air is not supplied when viewed from the rear, (A) is a diagram showing the shielding device, and (B) is a diagram showing a rotating plate. is there. It is a figure which shows the state of the air path at the time of not supplying cool air from the back in the shielding apparatus concerning 1st Embodiment of this invention. It is a figure which shows the state which supplies cold air only to a refrigerator compartment in the shielding device concerning a 1st embodiment of the present invention when it sees from the back, (A) is a figure showing a shielding device, and (B) is a rotating plate. FIG. It is a figure which shows the state of the air path at the time of supplying cold air only to a refrigerator compartment in the shielding device concerning 1st Embodiment of this invention seen from back. In the shielding device according to the first embodiment of the present invention, it is a diagram showing a state where cool air is supplied to the upper freezer compartment and the refrigerating compartment as viewed from the rear, (A) is a diagram showing the shielding device, and (B) is a diagram showing FIG. 3 is a view showing a rotating plate. It is a figure which shows the state of the air path at the time of supplying cool air to an upper freezer compartment and a refrigerating compartment seen from back in the shielding device concerning a 1st embodiment of the present invention. In the shielding device according to the first embodiment of the present invention, it is a diagram showing a state in which cool air is supplied to the entire freezing room and the refrigerating room as viewed from the rear, (A) is a diagram showing the shielding device, (B) FIG. 3 is a view showing a rotating plate. It is a figure which shows the state of the air path at the time of supplying cold air to the whole freezer compartment and a refrigerator compartment in the shielding device concerning 1st Embodiment of this invention when it sees from back. It is a figure showing a shielding device concerning a 2nd embodiment of the present invention, (A) is a perspective view and (B) is an exploded perspective view. It is a figure showing the shielding device concerning a 2nd embodiment of the present invention, (A) is an exploded view showing the rotation shielding wall of a shielding device seen from back, and (B) is a portion where gears mesh. FIG. It is a figure which shows the fully closed state of the shielding apparatus which concerns on 2nd Embodiment of this invention, (A) is a figure which shows a shielding apparatus seen from back, (B) is a front cover with which the shielding apparatus was assembled. FIG. It is a figure which shows the fully opened state of the shielding apparatus which concerns on 2nd Embodiment of this invention, (A) is a figure which shows a shielding apparatus seen from back, (B) shows the front cover with which the shielding apparatus was assembled. It is a perspective view. It is a figure which shows the shielding apparatus which concerns on 2nd Embodiment of this invention, (A) is a perspective view which shows the shielding apparatus of a closed state, (B) is a perspective view which shows the shielding apparatus of an open state. It is an exploded perspective view showing the shielding device concerning a 2nd embodiment of the present invention. It is a figure which shows the shielding apparatus which concerns on embodiment of this invention, (A) is a figure which shows the operation | movement which a shielding apparatus opens, (B) is a figure which shows the operation | movement which a shielding apparatus closes. . It is a figure showing the shielding device concerning a 3rd embodiment of the present invention, (A) is an exploded perspective view and (B) is an exploded sectional view. It is a figure showing the shielding device concerning a 3rd embodiment of the present invention, (A) is an exploded perspective view showing a shielding device partially, and (B) is a perspective view showing a cam. It is a figure which shows the shielding apparatus which concerns on 3rd Embodiment of this invention, (A) is a figure which shows the rotation shielding wall of a shielding apparatus when it sees from back, (B) is a figure which sees the structure of a rotating plate from back. FIG. It is a figure which shows the fully closed state of the shielding apparatus which concerns on 3rd Embodiment of this invention, (A) is a figure which shows a shielding apparatus seen from back, (B) is a cut surface line D- of (A). It is sectional drawing of the shielding apparatus seen from D, (C) is a figure which shows a rotation plate etc. seen from the front, (D) is a partial expanded sectional view of (B). It is a figure which shows the fully opened state of the shielding apparatus which concerns on 3rd Embodiment of this invention, (A) is a figure which shows a shielding apparatus seen from back, (B) is a cut surface line EE of (A). It is sectional drawing of the shielding apparatus seen from the front, (C) is a figure which shows a rotation plate etc. seen from the front, (D) is a partial expanded sectional view of (B). It is a figure showing the shielding device concerning a 3rd embodiment of the present invention, (A) is an exploded perspective view, and (B) is an enlarged sectional view showing a shielding wall drive mechanism. It is a figure which shows the fully closed state of the shielding apparatus which concerns on 3rd Embodiment of this invention, (A) is a figure which shows a shielding apparatus seen from back, (B) is a cut surface line F- of (A). It is sectional drawing of the shielding apparatus seen from F, (C) is a figure which shows a rotating plate etc. seen from back, (D) is a partial expanded sectional view of (B). It is a figure which shows the fully opened state of the shielding apparatus which concerns on 3rd Embodiment of this invention, (A) is a figure which shows a shielding apparatus seen from back, (B) is a sectional surface line GG of (A). FIG. 2 is a cross-sectional view of the shielding device as viewed from above, (C) is a diagram showing a rotating plate and the like viewed from behind, and (D) is a partially enlarged cross-sectional view of (B). It is a figure showing the shielding device concerning a 3rd embodiment of the present invention. It is a figure showing the shielding device concerning a 4th embodiment of the present invention, (A) is an exploded perspective view and (B) is an exploded sectional view. It is a figure showing the shielding device concerning a 4th embodiment of the present invention, (A) is an exploded perspective view showing a shielding device partially, and (B) is a perspective view showing a cam. It is a figure which shows the shielding device which concerns on 4th Embodiment of this invention, (A) is a figure which shows the rotation shielding wall of a shielding device when it sees from back, (B) is a figure which sees the structure of a rotating plate from back. FIG. It is a figure which shows the fully closed state of the shielding apparatus which concerns on 4th Embodiment of this invention, (A) is a figure which shows a shielding apparatus seen from back, (B) is a sectional view line H- of (A). It is sectional drawing of the shielding apparatus seen from H, (C) is a figure which shows a rotation plate seen from back, (D) is the elements on larger scale of (B). It is a figure which shows the fully opened state of the shielding apparatus which concerns on 4th Embodiment of this invention, (A) is a figure which shows a shielding apparatus seen from back, (B) is a cut surface line II of (A). It is sectional drawing of the shielding apparatus seen from FIG., (C) is a figure which shows a rotating plate seen from back, (D) is a partial expanded sectional view of (B). It is a figure showing the shielding device concerning a 5th embodiment of the present invention, (A) is an exploded perspective view showing a shielding device, and (B) is a perspective view showing a cam. It is a figure which shows the shielding apparatus which concerns on 5th Embodiment of this invention, (A) is an exploded perspective view which shows a shielding apparatus partially, (B) is an exploded perspective view which shows the structure in which a cam is accommodated. is there. It is a figure which shows the shielding device concerning 5th Embodiment of this invention, (A) is a figure which shows the rotation shielding wall of a shielding device when it sees from back, (B) is a figure which sees the structure of a rotating plate from back. FIG. It is a figure which shows the fully closed state of the shielding apparatus which concerns on 5th Embodiment of this invention, (A) is a figure which shows a shielding apparatus seen from back, (B) is a figure which shows a rotating plate seen from back. (C) is a cutaway perspective view of the shielding device. It is a figure which shows the fully opened state of the shielding apparatus which concerns on 5th Embodiment of this invention, (A) is a figure which shows a shielding apparatus when it sees from back, (B) is a figure which shows a rotating plate when it sees from back. FIG. 2C is a cutaway perspective view of the shielding device. It is a figure showing the 1st sliding range and the 2nd sliding range seen from the back in the shielding device concerning a 5th embodiment of the present invention. It is an expanded sectional view showing the refrigerator concerning a background art. It is a perspective view which shows the blower cover employ | adopted in the refrigerator which concerns on a background art.

[First Embodiment]
Hereinafter, the shielding device 70 and the refrigerator 10 according to the embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the same members are denoted by the same reference numerals in principle, and the repeated description will be omitted. Further, in the following description, directions of up, down, front, rear, and left and right will be used as appropriate, but left and right indicate left and right when the refrigerator 10 is viewed from the rear. Further, in the following description, the rotation directions are expressed in clockwise and counterclockwise directions, but these rotation directions are directions when the refrigerator 10 is viewed from the rear. In the following description, clockwise rotation may be referred to as forward direction, and counterclockwise rotation may be referred to as reverse direction. Furthermore, the configurations and the like described in each drawing can be mutually combined.

FIG. 1 is a front external view showing a schematic structure of a refrigerator 10 of the present embodiment. As shown in FIG. 1, the refrigerator 10 includes a heat insulating box 11 as a main body, and forms a storage room for storing foods and the like inside the heat insulating box 11. As the storage compartment, the uppermost compartment is a refrigerator compartment 15, the lower compartment is an upper freezer compartment 18, the lower compartment is a lower freezer compartment 19, and the lowermost compartment is a vegetable compartment 20. The upper freezing compartment 18 and the lower freezing compartment 19 are both storage compartments in the freezing temperature range, and may be collectively referred to as the freezing compartment 17 in the following description. Here, the upper freezing compartment 18 may be divided into right and left, and one side may be used as an ice making compartment.

(4) The front surface of the heat-insulating box 11 is open, and the heat-insulating doors 21 and the like are provided in the openings corresponding to the storage rooms so as to be openable and closable. The heat insulating door 21 divides and closes the front surface of the refrigerator compartment 15 in the left-right direction, and upper and lower outer ends in the width direction of the heat insulating door 21 are rotatably attached to the heat insulating box 11. The heat-insulating

doors

23, 24, and 25 are each integrally combined with the storage container, and are supported by the heat-insulating box 11 so as to be able to be drawn out to the front of the refrigerator 10. Specifically, the heat insulating door 23 closes the upper freezing compartment 18, the heat insulating door 24 closes the lower freezing compartment 19, and the heat insulating door 25 closes the vegetable compartment 20.

FIG. 2 is a side sectional view showing a schematic structure of the refrigerator 10. The heat insulating box 11 which is the main body of the refrigerator 10 has an outer box 12 made of a steel plate having an open front, and an inner box 13 made of a synthetic resin which is disposed with a gap in the outer box 12 and has an open front. It is composed of A gap between the outer box 12 and the inner box 13 is filled and foamed with a heat insulating material 14 made of polyurethane foam. The above-described heat-insulating doors 21 and the like also employ the same heat-insulating structure as the heat-insulating box 11.

(4) The refrigerator compartment 15 and the freezer compartment 17 located below the refrigerator compartment 15 are partitioned by a heat insulating partition wall 42. Further, between the upper freezing compartment 18 and the lower freezing compartment 19 provided therebelow, cool air, which is cooled air, communicates freely. The freezing compartment 17 and the vegetable compartment 20 are separated by a heat insulating partition wall 43.

A refrigerator air supply passage 29 is formed on the back surface of the refrigerator compartment 15 by a partition 65 made of synthetic resin and serves as a supply air passage for supplying cool air to the refrigerator compartment 15. An outlet 33 for flowing cool air into the refrigerator compartment 15 is formed in the refrigerator compartment supply air passage 29.

{Circle around (7)} a freezer supply air passage 31 is formed on the inner side of the freezer 17 to allow the cool air cooled by the cooler 45 to flow into the freezer 17. A cooling chamber 26 is formed further deeper than the freezing room supply air passage 31, and a cooler 45 as an evaporator for cooling air circulating in the refrigerator is disposed inside the cooling chamber 26. . The freezing room supply air passage 31 is a space surrounded by the front cover 67 and the partition body 66 from the front-back direction.

The cooler 45 is connected to the compressor 44, a radiator (not shown), and a capillary tube as expansion means (not shown) via a refrigerant pipe, and forms a vapor compression refrigeration cycle circuit.

FIG. 3 is a side sectional view showing the structure near the cooling chamber 26 of the refrigerator 10. The cooling chamber 26 is provided inside the heat-insulating box 11 on the back side of the freezing-room supply air passage 31. The cooling room 26 and the freezing room 17 are partitioned by a partition 66 made of synthetic resin.

The freezer supply air passage 31 formed in front of the cooling chamber 26 is a space formed between the cooling chamber 26 and a front cover 67 made of a synthetic resin assembled in front of the cooling chamber 26, and is cooled by the cooler 45. An air passage for flowing the cold air into the freezer compartment 17 is provided. The front cover 67 is formed with an outlet 34 which is an opening for blowing cool air into the freezer compartment 17.

A return port 38 for returning air from the freezing compartment 17 to the cooling compartment 26 is formed on the lower rear surface of the lower freezing compartment 19. Further, below the cooling chamber 26, a return port 28 is formed which is connected to the return port 38 and inhales return cool air from each storage chamber into the cooling chamber 26. Cool air returning through the return port 39 (see FIG. 2) of the vegetable compartment 20 and the vegetable compartment return air passage 37 also flows into the return port 28.

Further, a defrost heater 46 is provided below the cooler 45 as a defrost means for melting and removing frost attached to the cooler 45. The defrost heater 46 is an electric resistance heating type heater.

送 A blower port 27 which is an opening connected to each storage chamber is formed in an upper part of the cooling chamber 26. The air outlet 27 is an opening through which the cool air cooled by the cooler 45 flows, and connects the cooling room 26 with the refrigerating room supply air passage 29 and the freezing room supply air passage 31. A blower 47 that blows out cool air toward the freezer compartment 17 and the like is provided in the blower port 27 from the front. Further, since the function of the damper is performed by the rotation shielding wall 71 of the shielding device 70 described later, the damper can be omitted.

遮蔽 A shielding device 70 is provided outside the air outlet 27 of the cooling chamber 26 to appropriately block an air path connected to the air outlet 27. The shielding device 70 is covered with a front cover 67 from the front.

With reference to FIG. 4, a configuration in which the above-described shielding device 70 for regulating the air path is assembled will be described. FIG. 4A is a perspective view showing a partition body 66 to which the shielding device 70 is attached, FIG. 4B is a cross-sectional view taken along line AA in FIG. 4A, and FIG. (C) is a diagram showing a wind path configuration when the front cover 67 is viewed from the rear.

Referring to FIG. 4 (A), circular air outlet 27 penetrating in the thickness direction is formed in upper part of partition body 66, and blower 47 and shielding device 70 are provided in front of air outlet 27. It is arranged. Here, the shielding device 70 is hidden by the partition 66. The opening portion 59 formed on the upper end side of the partition body 66 communicates with the refrigerator compartment supply air passage 29 shown in FIG.

参照 Referring to FIG. 4 (B), as described above, freezer compartment supply air passage 31 is formed as a space surrounded by partition body 66 and front cover 67. As will be described later, the freezer compartment supply air passage 31 is divided into a plurality of air passages. A shielding device 70 and a shielding wall driving mechanism 60 are provided between the partition 66 and the front cover 67. The shielding device 70 shields the blower 47, and the shielding wall driving mechanism 60 drives the shielding device 70. The configurations of the shielding device 70 and the shielding wall driving mechanism 60 will be described later with reference to FIG.

4 (C), a plurality of air passages are formed by partitioning the internal space of front cover 67. Specifically, rib-shaped

airway partition walls

50 and 56 extending rearward from the rear main surface of the front cover 67 are formed. The rear ends of the

airway partition walls

50 and 56 are in contact with the partition 66 shown in FIG.

Here, the air passage for blowing the cool air is partitioned from above into a refrigerator compartment supply air passage 51, an upper stage freezer compartment supply air passage 52, and a lower stage freezer compartment supply air passage 53. The cold air supplied to the refrigerator compartment 15 is circulated through the refrigerating compartment supply air passage 51, the cold air supplied to the upper freezing compartment 18 is circulated through the upper freezing compartment supply air passage 52, and the lower freezing compartment supply air passage 53 is supplied through the lower freezing compartment supply air passage 53. The cool air blown into the chamber 19 flows. The cool air flowing through the refrigerating room supply air passage 51 is sent to the refrigerating room 15 shown in FIG. The cool air flowing through the upper freezing room supply air passage 52 is blown to the upper freezing room 18 shown in FIG. The cool air flowing through the lower-stage freezer supply air passage 53 is blown to the lower-stage freezer 19 shown in FIG. Here, the refrigerating room supply air passage 51, the upper stage freezing room supply air passage 52, and the lower stage freezing room supply air passage 53 are formed so as to expand around the shielding device 70.

The refrigerating room supply air passage 51 and the upper freezing room supply air passage 52 are partitioned by the air passage partition wall 50. Further, the upper freezing room supply air passage 52 and the lower freezing room supply air passage 53 are partitioned by an air passage partition wall 56.

構成 The configuration of the shielding device 70 will be described with reference to FIG. FIG. 5A is an exploded perspective view of the shielding device 70, and FIG. 5B is an exploded side sectional view of the shielding wall driving mechanism 60.

Referring to FIGS. 5A and 5B, shielding device 70 includes support base 63, rotating shielding wall 71, rotating plate 73, lid member 57, shielding wall driving mechanism 60, Is provided. The shielding device 70 is a device that shields the air path of the cool air blown by the blower 47. By opening the shielding device 70, an air path connecting the cooling chamber 26 and each storage room is communicated, and by closing the shielding device 70, the air path is shut off.

The blower 47 is disposed at the center of the front surface of the support base 63 via a fastening means such as a screw. Although not shown here, the blower 47 includes, for example, a centrifugal fan such as a turbo fan and a blower motor for rotating the centrifugal fan, and blows cool air radially outward.

The support base 63 is a member made of a synthetic resin having a substantially disk shape when viewed from the front. As shown in FIG. 5B, the peripheral portion of the support base 63 is bent substantially perpendicularly toward the front. The support accommodating portion 62 is formed on the support base 63, which will be described later with reference to FIG.

側壁 A side wall 58 is formed around the support base 63. The side wall portion 58 is a wall-shaped portion extending rearward from the support base 63. A plurality of (six in this embodiment) side wall portions 58 are arranged at substantially equal intervals in the circumferential direction of the support base 63. The rear end of the side wall portion 58 is fastened to the partition 66 shown in FIG. 4B via fastening means such as screws.

The rotation shielding wall 71 is a plate-shaped member made of a rectangular synthetic resin, and has a long side along the tangential direction of the outer edge of the support base 63. The rotation shielding wall 71 is attached to the periphery of the support base 63 so as to be rotatable rearward around an axis parallel to the main surface of the support base 63. A plurality (six in the present embodiment) of the rotation shielding walls 71 are arranged near the periphery of the support base 63. The rotation shielding wall 71 is arranged in a path through which the cool air blown by the blower 47 flows, and shields the air path.

The rotating plate 73 is made of a substantially disk-shaped steel plate as viewed from the front, and is rotatably disposed in front of the support base 63. A moving shaft slide groove 80 for rotating the rotation shielding wall 71 is formed in the rotating plate 73. A gear portion 77 for transmitting torque is formed at a peripheral portion of the rotating plate 73. As will be described later, the drive motor 74 is driven, torque is transmitted via the gear portion 77 of the gear 30, and the rotation plate 73 is rotated.

The lid member 57 is a plate-like member that covers the rotary plate 73 from the front, is formed slightly larger than the rotary plate 73, and has a substantially circular shape when viewed from the front.

A flange to which a drive motor 74 for driving the rotation plate 73 is attached is formed on the left portion of the support base 63. A gear 30 for transmitting the rotation speed and torque is provided between the drive motor 74 and the rotation plate 73. Is arranged. When the gear 30 and the rotating plate 73 mesh with each other, the torque of the drive motor 74 is transmitted to the rotating plate 73.

With reference to FIG. 6, a description will be given of the shielding wall driving mechanism 60 that drives the above-described rotating shielding wall 71. FIG. 6A is an exploded perspective view showing a lower portion of the shielding device 70, and FIG. 6B is a perspective view showing a cam 61.

6 (A), the shielding wall driving mechanism 60 includes a cam 61 and a rotating plate 73.

The cam 61 is a flat rectangular parallelepiped member made of synthetic resin. As shown in FIG. 6 (B), at one end of the cam 61, there is formed a rotary connecting portion 48 in which a hole through which the pin 55 can be inserted is formed. The cam 61 is housed in the cam housing 62 of the support base 63.

The cam housing 62 is a cavity formed in the support base 63, and is elongated along the radial direction of the support base 63. The cam housing portions 62 are formed corresponding to the respective rotation shielding walls 71. The size of the cam storage portion 62 is such that the cam 61 can be stored and the cam 61 can slide in the radial direction.

(6) The moving shaft 76 is a column-shaped protrusion protruding from the front surface of the cam 61, as shown in FIG. The diameter of the moving shaft 76 is slightly smaller than the width of the moving shaft slide groove 80 formed in the rotating plate 73. The moving shaft 76 is slidably engaged with the moving shaft slide groove 80 of the rotating plate 73.

As shown in FIG. 6 (A), the rotation shielding wall 71 is formed with a rotation connecting portion 68 that is inclined and protrudes from the base end of the rotation shielding wall 71. A hole through which the pin 55 can be inserted is formed in the rotation connecting portion 68. In the vicinity of both ends on the upper side of the rotation shielding wall 71, a rotation connection portion 64 is formed. The rotation connecting portion 64 is formed with a hole through which the pin 69 can be inserted.

リブ The rib 32 and the rotation connecting portion 54 are formed near the periphery of the support base 63. The rib 32 and the rotation connecting portion 54 are provided corresponding to each rotation shielding wall 71.

The rib 32 is a wall-shaped portion protruding rearward of the support base 63, and is formed by connecting adjacent side wall portions 58 with a straight line. Each end of the rib 32 is connected to the side wall 58. The end of the rotation shielding wall 71 on the rotation connection portion 68 side contacts the rib 32.

Rotating connection portion 54 is formed near each rib 32. A hole through which the pin 69 can be inserted is formed in the rotation connecting portion 54.

カム By inserting the pin 55 into the hole of the rotation connecting portion 48 and the hole of the rotation connecting portion 68, the cam 61 and the rotation shielding wall 71 are rotatably connected around the pin 55.

The support base 63 and the rotation shielding wall 71 are rotatably connected by inserting the pins 69 into the holes of the rotation connection portion 54 and the holes of the rotation connection portion 64.

By configuring the shielding wall drive mechanism 60 as described above, the drive shaft 74 is rotated by driving the drive motor 74, so that the moving shaft 76 slides in the moving shaft slide groove 80. This causes the cam 61 to slide within the cam housing 62. By sliding the cam 61, the rotation shielding wall 71 can be rotated around the pin 55. Specifically, when the cam 61 is slid toward the peripheral edge of the support base 63, the rotation shielding wall 71 rotates around the rotation connection portion 64 so as to be in an upright state, and the rotation shielding wall 71 is rotated. The wall 71 is orthogonal to the main surface of the support base 63. On the other hand, when the cam 61 is slid to the center side of the support base 63, the rotation shielding wall 71 rotates so as to be in a reclined state around the rotation connection portion 64, and the rotation shielding wall 71 is supported. The state is substantially parallel to the main surface of the base 63.

Therefore, if the moving shaft slide groove 80 is formed on the peripheral edge side of the support base 63, the rotation shielding wall 71 can be closed. Conversely, if the moving shaft slide groove 80 is formed on the center side of the support base 63, the rotation shielding wall 71 can be opened. By utilizing this principle and selecting the shape of the moving shaft slide groove 80 corresponding to each rotation shielding wall 71, the open / close state of each rotation shielding wall 71 can be arbitrarily set. Thus, the rotation shield wall 71 can be fully opened or fully closed without employing a complicated configuration, and some of the rotation shield walls 71 are in a closed state or an open state. It can also be in a state.

回転 As shown in FIG. 5B, the rotating plate 73 and the cam 61 constituting the shielding wall driving mechanism 60 are disposed in a region sandwiched between the support base 63 and the cover member 57. Therefore, as shown in FIG. 4B, the members constituting the shielding wall drive mechanism 60 are not exposed to the freezing room supply air passage 31 through which the cool air flows. Therefore, since the cold air is not blown to the shielding wall driving mechanism 60, it is possible to prevent the shielding wall driving mechanism 60 from freezing.

6A, a side wall portion 58 is formed at each longitudinal end of the rotation shielding wall 71. When the rotation shielding wall 71 is in the closed state, each longitudinal end of the rotation shielding wall 71 contacts the side wall portion 58. In this manner, by forming the side wall portions 58 at each end in the longitudinal direction of the rotation shielding wall 71, the airtightness when the rotation shielding wall 71 is in the closed state can be improved. Cold air leakage and inflow of warm air at the time of defrost can be reliably suppressed.

6A, the rib 32 is formed on the support base 63, so that when the rotation shielding wall 71 is closed, the end of the rotation shielding wall 71 on the rotation connecting portion 68 side. The part contacts the rib 32. Thereby, the airtightness when closed by the rotation shielding wall 71 can be further improved.

7A and 7B are diagrams showing the shielding device 70, FIG. 7A is a diagram showing the rotating shielding wall of the shielding device 70 viewed from the rear, and FIG. 7B is a diagram showing the configuration of the rotating plate viewed from the rear. FIG.

（Referring to FIG. 7 (A), shielding device 70 has rotating shielding

walls

71, 712, 713, 714, 715, 716 as rotating shielding walls 71. The rotation shielding wall 711 to the rotation shielding wall 716 have a rectangular shape having long sides substantially parallel to the tangential direction of the support base 63. Further, the rotation shielding wall 711 to the rotation shielding wall 716 are rotatably attached to the peripheral portion of the support base 63 shown in FIG.

半径 A radially inner end of the rotation shielding wall 711 is rotatably connected to a cam 611 on which a moving shaft 761 is formed. Similarly, a radially inner end of the rotation shielding wall 712 is rotatably connected to a cam 612 on which a moving shaft 762 is formed. A radially inner end of the rotation blocking wall 713 is rotatably connected to a cam 613 on which a moving shaft 763 is formed. The radially inner end of the rotation shielding wall 714 is rotatably connected to a cam 614 on which a moving shaft 764 is formed. A radially inner end of the rotation blocking wall 715 is rotatably connected to a cam 615 on which a moving shaft 765 is formed. A radially inner end of the rotation blocking wall 716 is rotatably connected to a cam 616 on which a moving shaft 766 is formed.

Referring to FIG. 7 (B), rotating plate 73 is a steel plate formed in a substantially disk shape, and has a plurality of moving shaft slide grooves 80 for controlling the opening / closing operation of rotating shield wall 711 and the like. Have been. Further, a gear groove 49 is formed in a part of the peripheral portion of the rotating plate 73, and the gear 30 and the gear groove 49 shown in FIG. The plate 73 rotates.

移動 The rotating plate 73 is formed with moving

shaft slide grooves

801, 802, 803, 804, 805 and 806 as the moving shaft slide grooves 80. The moving shaft slide groove 801 to the moving shaft slide groove 806 are groove-shaped portions formed along the circumferential direction of the rotating plate 73. The moving shaft slide groove 801 to the moving shaft slide groove 806 have a predetermined bent shape in order to slide the cams 611 to 616 shown in FIG. Further, the moving shaft 761 to the moving shaft 766 are engaged with the moving shaft slide groove 801 to the moving shaft slide groove 806.

The moving shaft slide groove 801 is composed of a groove 8013 to a groove 8011. Groove 8013 extends radially outward and circumferentially, groove 8012 slopes clockwise inward radially, and groove 8011 extends radially inward and circumferentially.

The moving shaft slide groove 802 is composed of a groove 8026 to a groove 8021. The groove portion 8026 is inclined clockwise inward in the radial direction, the groove portion 8025 is extended radially inward along the circumferential direction, and the groove portion 8024 is inclined in clockwise direction outward in the radial direction. The groove 8023 extends radially outward and along the circumferential direction. The groove 8022 is inclined clockwise inward in the radial direction, and the groove 8021 extends radially inward in the circumferential direction.

The moving shaft slide groove 803 is composed of a groove 8034 to a groove 8031. Groove 8034 extends radially inward and circumferentially, and groove 8033 slopes clockwise outward in the radial direction. The groove 8032 extends radially outward and circumferentially, and the groove 8031 is inclined clockwise inwardly in the radial direction.

The moving shaft slide groove 804 is composed of a groove 8044 to a groove 8041. The groove portion 8044 extends radially inward and along the circumferential direction, and the groove portion 8043 is inclined clockwise in a radially outward direction. The groove portion 8042 extends radially outward and along the circumferential direction, and the groove portion 8041 is inclined clockwise inwardly in the radial direction.

The moving shaft slide groove 805 is composed of a groove 8054 to a groove 8051. The groove portion 8054 extends radially inward and along the circumferential direction, and the groove portion 8053 is inclined clockwise in a radially outward direction. The groove portion 8052 extends radially outward and along the circumferential direction, and the groove portion 8051 slopes clockwise and inward radially inward.

The moving shaft slide groove 806 is composed of a groove 8066 to a groove 8061. The groove portion 8066 is inclined clockwise inward in the radial direction, the groove portion 8065 is radially inwardly extending along the circumferential direction, and the groove portion 8064 is inclined clockwise in the radially outward direction. Groove 8063 extends radially outward and circumferentially, groove 8062 slopes clockwise radially inward, and groove 8061 extends radially inward circumferentially.

回転 Further, a rotating shaft slide groove 79 extending in the circumferential direction is formed in the inner portion of the rotating plate 73. Here, three rotating shaft slide grooves 79 are formed at equal intervals. The rotating plate 73 is held by the support base 63 via a rotating shaft 75 (see FIG. 8C) slidably engaged with the rotating shaft slide groove 79.

Here, the moving shaft 761 and the like shown in FIG. 7A engage with the moving shaft slide groove 801 and the like shown in FIG. 7B. Specifically, the moving shaft 761 engages with the moving shaft slide groove 801, the moving shaft 762 engages with the moving shaft slide groove 802, and the moving shaft 763 engages with the moving shaft slide groove 803. Further, the moving shaft 764 engages with the moving shaft slide groove 804, the moving shaft 765 engages with the moving shaft slide groove 805, and the moving shaft 766 engages with the moving shaft slide groove 806.

FIG. 8 shows the configuration of the shielding device 70 in the fully closed state. 8A is a view of the shielding device 70 in the fully closed state as viewed from the rear, FIG. 8B is a cross-sectional view taken along line BB of FIG. 8A, and FIG. 8) is a view of the rotating plate 73 and the like in the fully closed state as viewed from the rear, and FIG. 8D is an enlarged view of a main part of FIG. 8B. Here, the fully closed state is a state in which the periphery of the blower 47 is shielded by the rotary shield wall 71, and thereby the blower opening 27 illustrated in FIG. 4 is closed. In this fully closed state, the blower 47 does not rotate.

参照 Referring to FIG. 8 (A), shielding device 70 prevents air from flowing out of blower 47 to the outside in the fully closed state. That is, in the fully closed state, all the shielding devices 70 are in the upright state, the communication with the air path for supplying cool air is cut off, and cool air is not supplied to the refrigerator compartment 15 and the freezer compartment 17. Further, even in the defrosting step of defrosting the cooler 45 shown in FIG. 2, warm air does not flow from the cooling chamber 26 into the refrigerator compartment 15 and the freezer compartment 17 because the shielding device 70 is in the fully closed state.

参照 Referring to FIG. 8B, in the fully closed state, the rotation shielding wall 71 is in a closed state that stands substantially perpendicular to the main surface of the support base 63. Here, all the rotation shielding walls 71 of the shielding device 70 are in the closed state. In this state, the rear end of the rotary shielding wall 71 is in contact with the partition 66 shown in FIG. By doing so, the airtightness when the air passage is closed by the rotation shielding wall 71 can be improved.

参照 Referring to FIG. 8 (C), when the shielding device 70 is to be fully closed, first, the drive motor 74 is driven to rotate the rotary plate 73 via the gear 30. Here, by rotating the rotating plate 73, each moving shaft 76 is slid in the moving shaft slide groove 80, and each moving shaft 76 is moved outward in the radial direction. As a result, as shown in FIG. 8D, the cam 61 moves radially outward. The rotation shielding wall 71 rotatably connected to the cam 61 rotates around the rotation connection portion 68 as a rotation center, and rises substantially at right angles to the main surface of the support base 63 in a closed state. It becomes. FIG. 8D illustrates the turning shielding wall 71 in the middle of transition from the open state to the closed state.

FIG. 9 shows the configuration of the shielding device 70 in the fully opened state. FIG. 9A is a view of the shielding device 70 in a fully opened state as viewed from the rear, FIG. 9B is a cross-sectional view taken along line CC of FIG. 9A, and FIG. FIG. 9D is a view of the rotating plate 73 and the like in the fully opened state as viewed from the rear, and FIG. 9D is an enlarged view of a main part of FIG. Here, the fully open state is a state in which the surroundings of the blower 47 are not blocked by the turning shield wall 71 from communicating with the air path for supplying cool air, whereby the cool air blown by the blower 47 spreads around.

参照 Referring to FIG. 9 (A), shield device 70 does not hinder the flow of air from blower 47 to the outside when fully opened. That is, in the fully opened state, the cool air blown from the blower 47 by the shielding device 70 is blown to the refrigerating room 15 and the freezing room 17 without being interfered by the rotating shielding wall 71. As shown in FIG. 9A, in the fully opened state, all the rotation shielding walls 71 are open toward the periphery.

を Referring to FIG. 9 (B), in the fully open state, the rotation shielding wall 71 is in an open state substantially parallel to the main surface of the support base 63. Since all the rotary shielding walls 71 of the shielding device 70 are in the open state, the rotary shielding wall 71 does not exist in the air path blown from the blower 47, and the flow path resistance of the air path is reduced. 47 can be increased.

Referring to FIG. 9C, when the shielding device 70 is fully opened, the driving motor 74 is driven to rotate the rotating plate 73 via the gear 30, and the moving shafts 76 slide. Slide in the groove 80. Thereby, each moving shaft 76 moves inward in the radial direction. In such a case, as shown in FIG. 9D, the cam 61 moves inward in the radial direction. As a result, the rotation shielding wall 71 rotatably connected to the upper end portion of the cam 61 rotates around the rotation connection portion 68 as a rotation center, and the main surface of the rotation shielding wall 71 , And become substantially parallel to the main surface of the cam housing 62.

FIG. 10 shows a state in which cool air is supplied only to the lower freezing compartment 19 in the shielding device 70 according to the embodiment of the present invention. FIG. 10A is a view of the shielding device 70 as viewed from the rear, and FIG. It is the figure which looked at the plate 73 from back. FIG. 11 is a diagram illustrating the state of the air passage when supplying the cool air only to the lower freezing compartment 19 in the shielding device 70 according to the embodiment of the present invention, as viewed from the rear. 12A and 12B show a case where cool air is supplied only to the freezing room 17 in the shielding device 70 according to the embodiment of the present invention, FIG. 12A is a diagram of the shielding device 70 viewed from the rear, and FIG. It is the figure which looked at 73 from back. FIG. 13 is a diagram showing the state of the air passage when supplying cool air only to the freezer compartment 17 in the shielding device 70 according to the embodiment of the present invention, as viewed from the rear. 14A and 14B show a state in which cool air is supplied only to the upper freezing compartment 18 in the shielding device 70 according to the embodiment of the present invention, FIG. 14A is a diagram of the shielding device 70 viewed from the rear, and FIG. It is the figure which looked at the plate 73 from back. FIG. 15 is a diagram of the air conditioner when the cool air is supplied only to the upper freezer compartment 18 in the shielding device 70 according to the embodiment of the present invention, as viewed from the rear. 16A and 16B show a state in which cool air is not supplied in the shielding device 70 according to the embodiment of the present invention. FIG. 16A is a diagram of the shielding device 70 viewed from the rear, and FIG. FIG. FIG. 17 is a rear view of a state of an air path when cool air is not supplied in the shielding device 70 according to the embodiment of the present invention.

FIGS. 18A and 18B show a state where cold air is supplied only to the refrigerator compartment 15 in the shielding device 70 according to the embodiment of the present invention. FIG. 18A is a view of the shielding device 70 as viewed from the rear, and FIG. It is the figure which looked at 73 from back. FIG. 19 is a view of the state of the air path when supplying the cool air only to the refrigerator compartment 15 in the shielding device 70 according to the embodiment of the present invention, as viewed from the rear. FIG. 20 shows a state in which cool air is supplied to the upper freezing compartment 18 and the refrigerator compartment 15 in the shielding device 70 according to the embodiment of the present invention, wherein FIG. () Is a view of the rotating plate 73 viewed from the rear. FIG. 21 is a diagram showing the state of the air passage when supplying cool air to the upper freezer compartment 18 and the refrigerating compartment 15 in the shielding device 70 according to the embodiment of the present invention, as viewed from the rear.

FIG. 22 shows a state in which cold air is supplied to the entire freezing room 17 and the refrigerator compartment 15 in the shielding device 70 according to the embodiment of the present invention. FIG. () Is a view of the rotating plate 73 viewed from the rear. FIG. 23 is a rear view of the air passage when supplying cool air to the entire freezing room 17 and the refrigerator compartment 15 in the shielding device 70 according to the embodiment of the present invention.

Hereinafter, with reference to FIG. 10 to FIG. 23, an operation of rotating the rotating plate 73 of the shielding device 70 to open and close the rotary shielding walls 711 to 716 to open and close and switch the air path will be described. In each of the following drawings, the clockwise direction is referred to as “forward”, and the counterclockwise direction is referred to as “reverse”. Further, in the following description, the radial direction and the circumferential direction of the rotating plate 73 are simply referred to as the radial direction and the circumferential direction.

FIGS. 10 and 11 show a state where cold air is supplied to the lower freezing compartment 19. FIG. 10A is a view of the shielding device 70 in this state as viewed from the rear, FIG. 10B is a view of the rotating plate 73 in this state as viewed from the rear, and FIG. It is the figure which looked at the state of the wind path in this state from back.

Referring to FIG. 10 (A), in a situation where cool air is supplied only to lower freezing compartment 19,

rotation shielding walls

712, 711, 716 are in a closed state, and

rotation shielding walls

713, 714, 715 are in an open state. It is. With such an open / close state, the blower 47 can blow cool air only to the lower freezing compartment 19.

を Referring to FIG. 10 (B), in this state, moving shafts 761 to 766 are arranged at opposite ends of moving shaft slide grooves 801 to 806. Specifically, the moving shaft 761 is arranged at the opposite end of the groove 8013 of the moving shaft slide groove 801, and the moving shaft 762 is arranged at the opposite end of the groove 8026 of the moving shaft slide groove 802. A moving shaft 763 is arranged at the end of the groove 803 in the opposite direction to the groove 8034. Also, a moving shaft 764 is arranged at the opposite end of the groove 8044 of the moving shaft slide groove 804, and the moving shaft 765 is arranged at the opposite end of the groove 8054 of the moving shaft slide groove 805. A moving shaft 766 is arranged at the opposite end of the groove 8066.

At this time, the moving

shafts

761, 762, 766 are disposed radially outward, and the

rotation blocking walls

711, 712, 716 are closed. On the other hand, the moving

shafts

763, 764, and 765 are arranged radially inward, and the

rotation blocking walls

713, 714, and 715 are in an open state.

Referring to FIG. 11, when shield device 70 is in the state shown in FIG. 10,

rotation shield walls

713, 714, and 715 are in the open state, so that cool air is blown to lower-stage freezer supply air passage 53. The cool air flowing into the lower freezing room supply air passage 53 is blown out to the lower freezing room 19 shown in FIG.

On the other hand, since the

rotation shielding walls

711, 712, and 716 are in the closed state, no cool air is blown to the refrigerator compartment 15 and the upper freezing compartment 18 shown in FIG.

FIGS. 12 and 13 show a state in which cool air is supplied only to the freezing compartment 17. FIG. 12A is a view of the shielding device 70 in this state as viewed from the rear, FIG. 12B is a view of the rotating plate 73 in this state as viewed from the rear, and FIG. It is the figure which looked at the state of the wind path in this state from back.

Referring to FIG. 12 (A), in a situation in which cool air is supplied only to lower freezing compartment 19, rotation shielding wall 711 is in a closed state, and

rotation shielding walls

712, 713, 714, 715, 716 are in an open state. It is. With this open / close state, the blower 47 can blow cool air into the freezing compartment 17 shown in FIG.

12 (B), in this state, the rotating plate 73 is rotated in the opposite direction from the state shown in FIG. 10 (B).

Specifically, the moving shaft 761 is disposed at an intermediate portion of the groove 8013 of the moving shaft slide groove 801, and the moving shaft 762 is disposed at the forward end of the groove 8026 of the moving shaft slide groove 802. A moving shaft 763 is arranged in the groove 8034 at the forward end of the groove 8034 of the slide groove 803. Further, a moving shaft 764 is disposed at a forward end of the groove 8044 of the moving shaft slide groove 804, and a moving shaft 765 is disposed at the forward end of the groove 8054 of the moving shaft slide groove 805. A moving shaft 766 is arranged in the groove 8066 at the forward end of the groove 8066 of the groove 806.

By performing the above, the moving shaft 761 remains disposed radially outward, and the rotation shielding wall 711 is maintained in the closed state. On the other hand, the moving

shafts

762, 763, 764, 765, and 766 are disposed radially inward, and the

rotation shielding walls

712, 713, 714, 715, and 716 are in an open state.

Referring to FIG. 13, when the shielding device 70 is in the state shown in FIG. 12, the

rotation shielding walls

712 and 716 are in the open state, so that the cool air is blown into the upper freezing room supply air passage 52, It is blown out to the upper freezer compartment 18 shown in FIG. Further, since the

rotation shielding walls

713, 714, and 715 are also opened, the cool air is blown to the lower freezing room supply air passage 53, and is blown out to the lower freezing room 19 shown in FIG. You.

On the other hand, since the rotation shielding wall 711 is in the closed state, no cool air is blown into the refrigerator compartment 15.

FIGS. 14 and 15 show a state in which cool air is supplied only to the upper freezing compartment 18. FIG. 14A is a view of the shielding device 70 in this state as viewed from the rear, FIG. 14B is a view of the rotating plate 73 in this state as viewed from the rear, and FIG. It is the figure which looked at the state of the wind path in this state from back.

Referring to FIG. 14 (A), in a situation where only the upper freezing compartment 18 shown in FIG. 2 supplies cool air, the

rotation shielding walls

711, 713, 714, and 715 are in a closed state, and the

rotation shielding walls

712 and 712 are closed. 716 is an open state. With such an open / closed state, the blower 47 can blow cool air only to the upper freezing compartment 18.

14 (B), in this state, the rotating plate 73 is rotated in the opposite direction from the state shown in FIG. 12 (B).

Specifically, the moving shaft 761 is disposed at an intermediate portion of the groove 8013 of the moving shaft slide groove 801, the moving shaft 762 is disposed at the forward end of the groove 8025 of the moving shaft slide groove 802, and the moving shaft slide groove 803 is provided. A moving shaft 763 is disposed at a forward end of the groove 8033. Further, a moving shaft 764 is disposed at a forward end of the groove 8043 of the moving shaft slide groove 804, a moving shaft 765 is disposed at a forward end of the groove 8053 of the moving shaft slide groove 805, and a moving shaft slide groove 806 is formed. A moving shaft 766 is arranged at a forward end of the groove 8065.

At this time, the moving

shafts

761, 763, 764, and 765 are arranged radially outward, and the

rotation blocking walls

711, 713, 714, and 715 are closed. On the other hand, the moving

shafts

762 and 766 are disposed radially inward, and the

rotation blocking walls

712 and 716 are in an open state.

Referring to FIG. 15, when the shielding device 70 is in the state shown in FIG. 14, the

rotation shielding walls

712 and 716 are in the open state, so that the cool air is blown to the upper freezing room supply air passage 52 and the air outlet is provided. The air is blown out to the upper freezer compartment 18 via the air conditioner 34.

On the other hand, since the rotation shielding wall 711 is in the closed state, no cool air is blown into the refrigerator compartment 15. Further, since the

rotation shielding walls

713, 714, and 715 are also in the closed state, no cool air is blown to the lower freezing compartment 19.

FIGS. 16 and 17 show a fully closed state in which the shielding device 70 closes all air paths. FIG. 16 (A) is a view of the shielding device 70 in this state as viewed from behind, FIG. 16 (B) is a view of the rotating plate 73 in this state as viewed from behind, and FIG. It is the figure which looked at the state of the wind path in this state from back.

を Referring to FIG. 16 (A), in the fully closed state, rotation blocking walls 711 to 716 are in the closed state. By adopting such a state, it is possible to prevent air from flowing through each air passage.

16 (B), in this state, the rotating plate 73 is rotated in the opposite direction from the state shown in FIG. 14 (B).

Specifically, the moving shaft 761 is arranged at the forward end of the groove 8013 of the moving shaft slide groove 801, and the moving shaft 762 is arranged at the forward end of the groove 8024 of the moving shaft slide groove 802. A moving shaft 763 is arranged at an intermediate portion of the groove 8032 of the groove 803. Further, a moving shaft 764 is arranged at an intermediate portion of the groove portion 8042 of the moving shaft slide groove 804, a moving shaft 765 is arranged at an intermediate portion of the groove portion 8052 of the moving shaft slide groove 805, and a groove 8064 of the moving shaft slide groove 806 is arranged in this order. A moving shaft 766 is arranged at the end in the direction.

At this time, the moving shafts 761 to 766 are arranged radially outward, and the rotation blocking walls 711 to 716 are closed.

参照 Referring to FIG. 17, when shield device 70 is in the state shown in FIG. 16, rotating shield walls 711 to 716 are in the closed state, and no air is supplied to all storage rooms. In other words, the cooling chamber 26 and each air path can be shielded by the rotation shielding walls 711 to 716. Therefore, when the inside of the cooling chamber 26 is warmed in the defrosting process, it is possible to prevent the warm air inside the cooling chamber 26 from leaking into each storage room via each air path. In the present embodiment, since the air passage can be shielded with high airtightness by the rotation shielding walls 711 to 716, the shielding effect can be enhanced.

FIGS. 18 and 19 show a state in which cool air is supplied only to the refrigerator compartment 15. FIG. 18A is a view of the shielding device 70 in this state as viewed from behind, FIG. 18B is a view of the rotating plate 73 in this state as viewed from behind, and FIG. It is the figure which looked at the state of the wind path in this state from back.

参照 Referring to FIG. 18 (A), in a situation where only the upper freezing compartment 18 is supplied with cool air, the rotation shielding wall 711 is in an open state and the rotation shielding walls 712 to 716 are in a closed state. With such an open / closed state, as described later, the blower 47 can blow cool air only to the refrigerator compartment 15.

18 (B), in this state, the rotating plate 73 is rotated in the opposite direction from the state shown in FIG. 16 (B).

Specifically, the moving shaft 761 is arranged at the forward end of the groove 8012 of the moving shaft slide groove 801, and the moving shaft 762 is arranged at the forward end of the groove 8023 of the moving shaft slide groove 802. A moving shaft 763 is arranged at an intermediate portion of the groove 8032 of the groove 803. Further, a moving shaft 764 is arranged at an intermediate portion of the groove portion 8042 of the moving shaft slide groove 804, a moving shaft 765 is arranged at an intermediate portion of the groove portion 8052 of the moving shaft slide groove 805, and a groove 8063 of the moving shaft slide groove 806 is arranged in this order. A moving shaft 766 is arranged at the end in the direction.

At this time, the moving shafts 762 to 766 are arranged radially outward, and the rotation blocking walls 712 to 716 are closed. On the other hand, the moving shaft 761 is disposed radially inward, and the rotation blocking wall 711 is in an open state.

Referring to FIG. 19, when the shielding device 70 is in the state shown in FIG. 18, the rotation shielding wall 711 is in the open state, so that cool air is blown to the refrigerator compartment supply air passage 51, and the refrigerator compartment supply air passage is provided. It is blown out to the refrigerator compartment 15 through 29. In addition, part of the cool air blown to the refrigerator compartment 15 can be blown to the vegetable compartment 20.

On the other hand, since the rotation shielding walls 712 to 716 are in the closed state, cool air is not blown out to the freezing compartment 17.

FIGS. 20 and 21 show a state where the shielding device 70 supplies cool air to the refrigerator compartment 15 and the upper freezer compartment 18. FIG. 20 (A) is a view of the shielding device 70 in this state as viewed from the rear, FIG. 20 (B) is a view of the rotating plate 73 in this state as viewed from the rear, and FIG. It is the figure which looked at the state of the wind path in this state from back.

Referring to FIG. 20 (A), in a situation where cold air is supplied to refrigerator compartment 15 and upper freezing compartment 18 shown in FIG. 2,

rotation shielding walls

711, 712, 716 are in an open state, and rotation shielding wall 713 is provided. 715 are closed states. With such an open / close state, the blower 47 can blow cool air into the refrigerator compartment 15 and the upper freezing compartment 18.

（Referring to FIG. 20B, in this state, the rotating plate 73 is rotated in the reverse direction from the state shown in FIG. 18B.

Specifically, the moving shaft 761 is disposed at an intermediate portion of the groove 8011 of the moving shaft slide groove 801, the moving shaft 762 is disposed at a forward end of the groove 8022 of the moving shaft slide groove 802, and the moving shaft slide groove 803 is provided. The moving shaft 763 is arranged at the forward end of the groove 8032 of the first embodiment. Also, a moving shaft 764 is disposed at a forward end of the groove 8042 of the moving shaft slide groove 804, a moving shaft 765 is disposed at a forward end of the groove 8052 of the moving shaft slide groove 805, and a moving shaft slide groove 806 is formed. A moving shaft 766 is arranged at a forward end of the groove 8062.

At this time, the moving shafts 763 to 765 are arranged radially outward, and the rotation blocking walls 713 to 715 are closed. On the other hand, the moving

shafts

761, 762, and 766 are disposed radially inward, and the

rotation blocking walls

711, 712, and 716 are in an open state.

Referring to FIG. 21, when the shield device 70 is in the state shown in FIG. 20, the rotation shield wall 711 is in the open state, so that cool air is blown to the refrigerator compartment 15 via the refrigerator compartment supply air passage 29. You. In addition, when the

rotation shielding walls

712 and 716 are in the open state, the cool air is blown into the upper freezing room supply air passage 52 and is blown out to the upper freezing room 18 via the outlet 34.

On the other hand, since the rotation shielding walls 713 to 715 are in the closed state, no cool air is blown into the lower freezing compartment 19.

FIGS. 22 and 23 show a fully open state in which cool air is supplied to both the refrigerator compartment 15 and the freezer compartment 17. FIG. 22 (A) is a view of the shielding device 70 in this state as viewed from behind, FIG. 22 (B) is a view of the rotating plate 73 in this state as viewed from behind, and FIG. It is the figure which looked at the state of the wind path in this state from back.

（Referring to FIG. 22 (A), in a situation where cool air is supplied to refrigerator compartment 15 and freezer compartment 17 shown in FIG. 2,

rotation blocking walls

711, 712, 713, 714, 715 and 716 are in an open state. By setting this fully open state, as described later, the blower 47 can blow cool air to the refrigerator compartment 15 and the freezer compartment 17.

して Referring to FIG. 22B, in this state, the rotating plate 73 is rotated in the opposite direction from the state shown in FIG. 20B. Further, here, the moving shafts 761 to 766 are arranged at the forward ends of the moving shaft slide grooves 801 to 806.

Specifically, the moving shaft 761 is arranged at the forward end of the groove 8011 of the moving shaft slide groove 801, and the moving shaft 762 is arranged at the forward end of the groove 8021 of the moving shaft slide groove 802. A moving shaft 763 is arranged at a forward end of the groove 8031 of the groove 803. Further, a moving shaft 764 is disposed at a forward end of the groove 8041 of the moving shaft slide groove 804, a moving shaft 765 is disposed at a forward end of the groove 8051 of the moving shaft slide groove 805, and a moving shaft 806 of the moving shaft slide groove 806 is formed. A moving shaft 766 is arranged at a forward end of the groove 8061.

At this time, the moving shafts 761 to 766 are arranged radially inward, and the rotation blocking walls 711 to 716 are in the open state.

Referring to FIG. 23, when the shielding device 70 is in the state shown in FIG. 22, the rotation shielding wall 711 is in the open state, so that cool air is blown to the refrigerator compartment supply air passage 51, and the refrigerator compartment supply air passage is provided. The cold air is blown out to the refrigerator compartment 15 through 29. In addition, when the

rotation shielding walls

712 and 716 are in the open state, the cool air is blown into the upper freezing room supply air passage 52 and is blown out to the upper freezing room 18 via the outlet 34. Further, when the rotation shielding walls 713 to 715 are in an open state, cool air can be supplied to the lower freezing compartment 19 via the lower freezing compartment supply air passage 53 and the outlet 34.

As described above, the shielding device 70 according to the present embodiment can switch the open / close state of each of the rotary shielding walls 711 to 716 by rotating the rotary plate 73 shown in FIG. Therefore, the members are not displaced along the axial direction of the blower 47. Therefore, the thickness dimension occupied by the shielding device 70 can be reduced. Further, referring to FIG. 3, since the volume occupied by shielding device 70 can be reduced, the internal volume of freezing room 17 formed in front of shielding device 70 is increased, and Can be stored in the freezer 17.

[Second embodiment]
A shielding device 270 according to the second embodiment will be described with reference to FIGS. The basic configuration of the shielding device 270 according to the second embodiment and the configuration applied to the refrigerator 10 are the same as those of the first embodiment, and therefore the description will focus on the differences. In this embodiment, the opening and closing of the shielding device 270 is driven by a gear mechanism or a wire mechanism.

The configuration of the shielding device 270 will be described with reference to FIG. FIG. 24A is a perspective view showing the shielding device 270, and FIG. 24B is an exploded perspective view showing the shielding device 270.

（Referring to FIGS. 24A and 24B, the shielding device 270 includes a support base 263, a rotating shielding wall 271, and a shielding wall driving mechanism 260. The shielding device 270 is a device that shields the air path of the cool air blown by the blower 47. By setting the shielding device 270 to the open state, the air path connecting the cooling chamber 26 and each storage room is communicated, and by setting the shielding device 270 to the closed state, the air path is blocked.

（Referring to FIG. 24 (B), blower 47 is disposed at the center of support base 263 via fastening means such as screws. Although not shown here, the blower 47 includes, for example, a centrifugal fan such as a turbo fan and a blower motor for rotating the centrifugal fan, and blows cool air radially outward.

The support base 263 is a member made of a synthetic resin that is integrally molded, and has a substantially square shape when viewed from behind. A rotation shielding wall 271 is rotatably disposed on each side of the support base 263. By projecting a part of the support base 263 to the rear side, a plurality of projecting portions 258 are formed. A cover plate 235 is attached to the rear end of the protrusion 258.

The cover plate 235 is a plate-like member that has a substantially forward direction when viewed from the rear, and has an opening 236 formed in the center. The cool air taken in from the opening 236 is blown toward the surroundings by the blower 47.

The shielding wall driving mechanism 260 drives the opening and closing operation of the rotation shielding wall 271. The shield wall drive mechanism 260 includes a drive motor 274 as a drive source, a gear 2811 as a power transmission mechanism for transmitting the power of the drive motor 274 to the rotary shield wall 271, and the like. The specific configuration of the shielding wall driving mechanism 260 will be described later with reference to FIG.

The drive motor 274 is disposed on the lower left side of the support base 263, and generates a driving force for opening and closing the rotation shielding wall 271.

The rotation shield wall 271 is a plate-shaped member made of a rectangular synthetic resin, and includes a rotation shield wall 2711 to a rotation shield wall 2714. Details of the rotation shielding wall 271 will be described later with reference to FIG.

遮蔽 The shielding device 270 will be described in detail with reference to FIG. FIG. 25A is an exploded view showing the shielding device 270, and FIG. 25B is an enlarged view showing a portion where the rotating shielding wall 2711 and the rotating shielding wall 2714 are drivingly connected. . In FIG. 25A, the support base 263 and the blower 47 are covered with a cover plate 235.

参照 Referring to FIG. 25 (A), the rotation shielding wall 271 includes a rotation shielding wall 2711 to a rotation shielding wall 2714. The rotation shielding wall 271 has a long side along each side of the support base 263. The rotation shielding wall 271 is attached to the periphery of the support base 263 so as to be rotatable around an axis parallel to the main surface of the support base 263. The rotation shielding wall 271 is arranged in a path through which the cool air blown by the blower 47 flows, and shields each air path. In addition, an inner side of the rotation shielding wall 2711 or the rotation shielding wall 2714 is rotatably attached to the support base 263 via the rotation connection portion 264.

A gear 2811 and the like are disposed on the rotation shielding wall 2711 to the rotation shielding wall 2714 as a power transmission mechanism for transmitting power from the drive motor 274. Specifically, a gear 2812 and a gear 2813 are provided at both inner ends of the rotation shielding wall 2711, and a gear 2814 and a gear 2815 are provided at both inner ends of the rotation shielding wall 2712. Further, a gear 2816 and a gear 2817 are provided at both ends on the inner side of the gear 2813, and a drive shaft 254 and a gear 2811 are provided at both ends of the rotation shielding wall 2714. The drive shaft 254 is a shaft rotated by the drive motor 274.

ギア The gear 2811 of the rotation shielding wall 2714 meshes with the gear 2812 of the rotation shielding wall 2711. The gear 2813 of the rotation shielding wall 2711 meshes with the gear 2814 of the rotation shielding wall 2712. The gear 2815 of the rotation shielding wall 2712 meshes with the gear 2816 of the rotation shielding wall 2713.

（Referring to FIG. 25B, the gear 2811 of the rotation shielding wall 2714 and the gear 2812 of the rotation shielding wall 2711 constitute, for example, a bevel gear. With this configuration, power can be transmitted from the rotation shielding wall 2714 to the rotation shielding wall 2711 in a direction orthogonal to the rotation shielding wall 2711. Such a structure includes a gear 2813 of the rotation shielding wall 2711, a gear 2814 of the rotation shielding wall 2712, a gear 2815 of the rotation shielding wall 2712, and a gear 2816 of the rotation shielding wall 2713 shown in FIG. The same applies to the configuration.

Referring to FIG. 25A again, the opening / closing operation of the shielding device 270 will be described. When the driving motor 274 is rotated in one direction, the driving force is changed by the rotation shielding wall 2711 via the gear 2811 and the gear 2812. Is transmitted to the rotation shielding wall 2712 via the gear 2813 and the gear 2814, and is transmitted to the rotation shielding wall 2713 via the gear 2815 and the gear 2816. As a result, the rotation shielding wall 2711 to the rotation shielding wall 2714 simultaneously rotate so as to be in an upright state that is a state orthogonal to the main surface of the support base 263.

When the drive motor 274 is rotated in the reverse direction, the driving force is transmitted to the rotation shielding wall 2711 to the rotation shielding wall 2714 and the rotation shielding wall 2711 to the rotation shielding wall 2714 are simultaneously The support 263 rotates so as to be in a reclined state that is substantially parallel to the main surface.

FIG. 26 shows the configuration of the shielding device 270 in the fully closed state. FIG. 26A is a view of the shielding device 270 in the fully closed state as viewed from the rear, and FIG. 26B is a view of the front cover 67 to which the shielding device 270 in the fully closed state is mounted as viewed from the rear. . The fully closed state is a state in which all the air paths that supply cool air are blocked by the rotation blocking wall 271.

Referring to FIG. 26 (A), the driving force of drive motor 274 is transmitted to rotation shielding wall 2711 or rotation shielding wall 2714 by gear 2811 or the like as a power transmission mechanism, so that rotation shielding wall 2711 or rotation shielding wall 2714 is rotated. The rotation shielding wall 2714 is in an upright state in which it stands with respect to the main surface of the support base 263, that is, in a closed state in which the air passages connected to the respective storage rooms are closed. In this fully closed state, the blower 47 does not rotate.

を Referring to FIG. 26 (B), shielding device 270 prevents air from flowing out of blower 47 to the outside in the fully closed state. That is, in the fully closed state, the rotation shielding wall 2711 to the rotation shielding wall 2714 are in the upright state, the communication with the air path for supplying cool air is cut off, and the refrigerator compartment 15 and the freezer compartment 17 shown in FIG. No cool air is supplied. Further, even in the defrosting step of defrosting the cooler 45 shown in FIG. 2, warm air does not flow from the cooling chamber 26 to the refrigeration chamber 15 and the freezing chamber 17 because the shielding device 270 is in the fully closed state.

FIG. 27 shows the configuration of the shielding device 270 in the fully opened state. FIG. 27A is a view of the shielding device 270 in the fully opened state as viewed from the rear, and FIG. 27B is a view of the front cover 67 to which the shielding device 270 in the fully opened state is mounted as viewed from the rear. The fully open state is a state in which the communication with the air path for supplying cool air is not blocked by the rotation blocking wall 271, and the cool air blown by the blower 47 flows so as to spread around.

を Referring to FIG. 27A, shield device 270 does not hinder the flow of air from blower 47 to the outside when fully opened. That is, in the fully opened state, the rotation shielding wall 2711 or the rotation shielding wall 2714 is in a lying state in which the rotation shielding wall 2711 or the rotation shielding wall 2714 lies substantially parallel to the main surface of the support base 263 by the driving force of the drive motor 274. Therefore, the cool air blown from the blower 47 by the shielding device 270 is blown to the refrigerating room 15 and the freezing room 17 without being interfered by the rotating shielding walls 2711 to 2714.

Referring to FIG. 27 (B), all of the rotation shielding walls 2711 to 2714 of the shielding device 270 are in the open state in which they are lying down, so that the flow path resistance is reduced and the air volume of the blower 47 is reduced. Can be increased. Specifically, when the rotation shielding wall 2711 is in the open state, the cool air is blown to the refrigerator compartment supply air passage 51, and the cool air is sent to the refrigerator compartment 15 shown in FIG. Be blown out. When the rotation shielding wall 2712 and the rotation shielding wall 2714 are in the open state, the cool air is blown to the upper freezing room supply air passage 52 and passes through the air outlet 34, and the upper freezing room 18 shown in FIG. Is blown out. Further, by opening the rotation shielding wall 2713, the cool air can be supplied to the lower freezing room 19 (see FIG. 2) via the lower freezing room supply air passage 53 and the air outlet 34.

Here, the above-described rotation shielding wall 2711 to the rotation shielding wall 2714 may be in a half-open state. Specifically, based on an instruction from a control device (not shown), a drive motor, which is a stepping motor, is used when transitioning from the fully closed state shown in FIG. 26A to the fully open state shown in FIG. By stopping 274 on the way, the rotation shielding wall 2711 to the rotation shielding wall 2714 can be set to a half-open state. By setting the rotation shielding wall 2711 or the rotation shielding wall 2714 in a half-open state, the amount of cool air blown into the freezing compartment 17 can be precisely adjusted.

(2) Referring to FIG. 2, the damper 22 can be interposed in the refrigerating room supply air passage 29, and the turning shield wall 2711 shown in FIG. 26A can be omitted. That is, the shielding device 270 has only the rotating shielding wall 2712, the rotating shielding wall 2713, and the rotating shielding wall 2714. Further, the rotation shielding wall 2712, the rotation shielding wall 2713, and the rotation shielding wall 2714 can be in a fully closed state, a fully open state, and a half open state. By doing so, the degree of freedom in blowing air to the refrigerator compartment 15 and the freezer compartment 17 can be freely adjusted.

With reference to FIG. 28 to FIG. 30, a configuration and the like of a shielding device 290 according to another embodiment will be described. 28A is a perspective view showing the shielding device 290 in a closed state, FIG. 28B is a perspective view showing the shielding device 290 in an open state, and FIG. 29 is an exploded perspective view showing the shielding device 290 in detail. FIG. FIG. 30A is a diagram showing a method of bringing the shielding device 290 into a fully open state, and FIG. 30B is a diagram showing a method of bringing the shielding device 290 into a fully closed state.

Referring to FIG. 28 (A), shielding device 290 has a plurality of rotating shielding walls 291 which surround blower 294 from the surroundings and open and close the air path. The blower 294 is provided at the center of the rear surface of the support base 296 having a substantially disk shape. An end of the rotation shielding wall 291 is rotatably attached to a peripheral portion of the support base 296 via a rotation connection portion 293. As an example, twelve rotation shield walls 291 are attached to the periphery of the support base 296. In the closed state, the turning shielding wall 291 is in an upright state in which the turning shielding wall 291 stands upright with respect to the main surface of the support base 296. In other words, an annular wall composed of a plurality of rotation shielding walls 291 is formed around the support base 296.

The shielding device 290 has a wire 292 as a power transmission for transmitting a driving force for opening and closing the rotation shielding wall 291. Specifically, a wire insertion portion 295 is formed at the inner end of each rotation shielding wall 291. The wire 292 is inserted through the wire insertion portion 295 of each of the rotation shielding walls 291 and has a substantially annular shape as a whole. Therefore, when the diameter of the wire 292 is reduced by squeezing, the rotation blocking wall 291 rotates so as to rise from the rotation connection portion 293 as a starting point, and becomes substantially orthogonal to the main surface of the support base 296. It stands up. By closing the shielding device 290, the air supply to each storage room can be stopped as shown in FIG.

FIG. 28B shows the shielding device 290 in the fully opened state. Here, each of the rotation shielding walls 291 is in a fully open state that is substantially parallel to the main surface of the support base 296. By pulling out the wire 292 so that the ring shape of the wire 292 expands, the turning shield wall 291 is turned so as to lie down in the radial direction and the turning shield wall 291 is fully opened. Can be. By setting the shielding device 290 to the fully open state, as shown in FIG. 27B, cool air can be blown to each storage room.

The specific configuration of the shielding device 290 will be described with reference to the exploded perspective view of FIG. The shielding device 290 includes a lid 297, a blower 294, a wire cover 288, a rotary shielding wall 291, a support base 296, a wire rotating body 286, a lid 299, and a drive motor 289 from the rear side.

The lid 297 has a substantially circular outer shape, and has an opening 282 for taking in cool air blown by the blower 294. The cover 297 covers the blower 294 from the rear side.

The blower 294 is similar to the blower 47 described above, and blows cool air taken in through the opening 282 toward the outside in the circumferential direction. The blower 294 is mounted on the support base 296 via a blower mounting portion 287.

The wire cover 288 is made of a substantially annular plate and protects the wire 292 from the rear to secure a space for allowing the movement of the wire 292.

A plurality of the rotation shielding walls 291 are arranged around the blower 294, and open and close the air path extending from the blower 294 to the periphery by rotating.

The support base 296 is made of a plate formed in a substantially annular shape, and is provided with the rotation shielding wall 291 and the wire 292. A rotation connecting portion 298 is formed around the support base 296 so as to correspond to the rotation connecting portion 293 (see FIG. 28A) of the rotation shielding wall 291. Each rotation connection portion 293 of the rotation shielding wall 291 is rotatably connected to the rotation connection portion 298 of the support base 296. Further, one end of the wire 292 described above is fixed to the support base 296. Further, a groove 285 is formed in an inner portion of the support base 296. The groove 285 is formed to be elongated along the circumferential direction. The end of the wire 292 is connected to the wire rotating body 286 via the groove 285.

The wire rotating body 286 is made of a plate material formed in a substantially disk shape, and is disposed in front of the support base 296. The other end of the wire 292 is connected to the wire rotating body 286. The wire rotating body 286 is drivingly connected to a drive motor 289 via a gear (not shown). Therefore, when the drive motor 289 rotates in one direction, the wire rotating body 286 also rotates in one direction. Conversely, when the drive motor 289 rotates in the opposite direction, the wire rotator 286 also rotates in the opposite direction.

The lid 299 is a substantially disk-shaped plate member that protects the wire rotator 286 from the front. A drive motor 289 is attached to the lid 299.

The wire 292 has a wire end 2921 on one end and a wire end 2922 on the other end. The wire end portion 2921 is fixed to the rotation connecting portion 298 via a wire fixing portion 284 described later, and its position does not change even when the wire rotating body 286 rotates. The wire end portion 2922 is fixed to the wire rotator 286 via a wire fixing portion 283 described later, and is displaced along the circumferential direction of the wire rotator 286 as the wire rotator 286 rotates.

With reference to FIG. 30, a specific method of operating the wire 292 to open and close the rotation shielding wall 291 will be described. FIG. 30A shows the shielding device 290 in an open state, and FIG. 30B shows the shielding device 290 in a closed state.

（Referring to FIG. 30A, one end of wire 292 is fixed to support base 296 shown in FIG. 29 via wire fixing portion 284 as described above. The position of the wire fixing part 284 is unchanged. On the other hand, the other end of the wire 292 is fixed to the wire rotating body 286 shown in FIG. With the rotation of the wire rotating body 286, the position of the wire fixing part 283 moves along the groove 285. Here, when the wire rotating body 286 rotates counterclockwise by the driving force of the drive motor 289 shown in FIG. 29, the wire fixing portion 283 also moves inside the groove 285 counterclockwise. Along with this, the wire 292 is drawn out along the anti-circumferential direction, so that the diameter of the wire 292 having an annular shape is expanded. Further, as described above, the wire 292 is inserted through the wire insertion portion 295 of each of the rotation shielding walls 291. Accordingly, each of the rotation shielding walls 291 is simultaneously rotated so as to fall toward the surroundings and is in a lying state. In this state, the cool air blown by the rotation of the blower 294 is, for example, the refrigerating room supply air passage 51, the upper freezing room supply air passage 52, and the lower freezing room supply air passage shown in FIG. Via the 53, it is supplied to the refrigerator compartment 15, freezer compartment 17 and vegetable compartment 20 shown in FIG.

方法 A method of closing the rotation shielding wall 291 will be described with reference to FIG. First, the wire rotating body 286 is rotated in the reverse direction, that is, clockwise by the driving force of the driving motor 289 shown in FIG. Then, the wire fixing portion 283, which is a connection point between the wire rotating body 286 and the wire 292, also moves clockwise inside the groove 285. As a result, the diameter of the annular wire 292 is reduced, and each of the rotary shield walls 291 is simultaneously rotated so as to stand on the main surface of the shield device 290. As a result, each of the rotary shielding walls 291 is in a closed state in which it stands up so as to surround the blower 294 from the surroundings. When the shielding device 290 is in the closed state, no air is blown to each storage room shown in FIG.

In the above-described shielding device 290, the turning shield wall 291 can be opened by expanding the diameter of one annular wire 292, and the turning shield wall 291 can be closed by reducing the diameter. Can be. Therefore, the opening and closing operation of the shielding device 290 can be performed with a simple configuration. Further, the shielding device 290 opens and closes in the diameter direction of the blower 294, and the constituent members do not move along the axial direction of the blower 294, that is, the depth direction of the refrigerator 10. Therefore, in the depth direction of refrigerator 10, the volume occupied by shielding device 290 can be reduced, and the effective volume used as a storage room can be increased.

Here, the above-described shielding device 290 can be set to a half-open state. Specifically, based on an instruction from a control device (not shown), a drive motor, which is a stepping motor, is used to change from the fully closed state shown in FIG. 28A to the fully open state shown in FIG. By stopping 289 on the way, the rotation shielding wall 291 can be brought into a half-open state. By setting the rotation shielding wall 291 in a half-open state, the amount of cool air blown into the freezing compartment 17 can be precisely adjusted.

(2) Referring to FIG. 2, the damper 22 can be interposed in the refrigerating room supply air passage 29, and the turning shield wall 291 at the upper end shown in FIG. 28 (A) can be omitted. Further, the rotation shielding wall 291 can be in a fully closed state, a fully opened state, and a half open state. By doing so, the degree of freedom in blowing air to the refrigerator compartment 15 and the freezer compartment 17 can be freely adjusted.

から The following inventions can be grasped from the second embodiment described above.

The present invention is a shielding device that closes an air passage through which cool air is blown inside a refrigerator, and is arranged side by side so as to surround a blower from a radial outside, and a plurality of circuits that open and close the air passage by rotating. A moving shielding wall, and a shielding wall driving mechanism for driving the rotating shielding wall, wherein the shielding wall driving mechanism transmits a driving source and power of the driving source to the rotating shielding wall. And a mechanism. Thus, according to the shielding device of the present invention, the size of the entire shielding device in the thickness direction can be reduced by opening and closing the air path by the rotating shielding wall surrounding the blower from the surroundings, thereby reducing the size of the entire device. realizable. Further, by transmitting power from the driving source to the turning shield wall using the power transmission mechanism, the opening and closing operation of the turning shield wall can be performed satisfactorily.

Further, in the shield device of the present invention, the power transmission mechanism is a gear mechanism disposed between the adjacent rotary shield walls. Thus, according to the shield device of the present invention, by transmitting the power to the rotary shield wall by the gear mechanism, the power transmission mechanism can control opening and closing operations of the multiple rotary shield walls.

Further, in the shielding device of the present invention, the rotation shielding wall is disposed in a substantially annular shape so as to surround the blower, and the power transmission mechanism is a wire inserted through the rotation shielding wall, Is inserted through a wire insertion portion formed in the rotation shielding wall. Thereby, according to the shielding device of the present invention, the turning shield wall can be set up by shortening the diameter of the wire so as to reduce the diameter, and conversely, the wire is extended so that the diameter of the wire increases. The turning shielding wall can be placed in a lying state.

Further, in the refrigerator of the present invention, a cooler of a refrigeration cycle for cooling air supplied to the storage room via the air passage, and a blower outlet provided with the cooler and connected to the storage room are formed. A cooling chamber, a blower that blows the air supplied from the blowing port toward the storage chamber, and the shielding device that at least partially blocks the air path. Thereby, according to the refrigerator of the present invention, the dimension in the thickness direction of the entire shielding device can be reduced, and the effective volume of each storage room can be increased.

[Third embodiment]
A shielding device 370 according to the third embodiment will be described with reference to FIGS. The basic configuration of the shielding device 370 according to the third embodiment and the configuration applied to the refrigerator 10 are the same as those of the first embodiment, and therefore, the description will focus on the differences. In this embodiment, the shielding device 370 has an individual opening / closing drive mechanism.

The configuration of the shielding device 370 will be described with reference to FIG. FIG. 31A is an exploded perspective view of the shielding device 370, and FIG. 31B is a side sectional view of the shielding device 370.

31 (A) and FIG. 31 (B), the shielding device 370 includes a support base 363, a rotation shielding wall 371, and a shielding wall driving mechanism 360. The shielding device 370 is a device that shields the air path of the cool air blown by the blower 47. By setting the shielding device 370 to the open state, the air path connecting the cooling chamber 26 and each storage room is communicated, and by setting the shielding device 370 to the closed state, the air path is shut off.

The blower 47 is disposed at the center of the support base 363 via a fastening means such as a screw. Although not shown here, the blower 47 includes, for example, a centrifugal fan such as a turbo fan and a blower motor for rotating the centrifugal fan, and blows cool air radially outward.

The support base 363 is a member made of a synthetic resin that is integrally molded. On the rear surface side of the support base 363, each of the rotary shielding walls 371 is rotatably disposed.

側壁 A side wall 358 is formed around the support base 363. The side wall portion 358 is a portion extending rearward from the support base 363. A plurality of side wall portions 358 are arranged at substantially equal intervals in the circumferential direction of the support base 363. The side wall portion 358 is disposed between the rotation shielding walls 371. The rear end of the side wall 358 is fastened to the partition 66 shown in FIG. 4B via fastening means such as screws.

Rotation shielding wall 371 is a plate-like member made of a rectangular synthetic resin, and has a long side along a tangent to the outer edge of blower 47. The rotation shield wall 371 is attached to the vicinity of the peripheral edge of the support base 363 so as to be rotatable rearward around an axis parallel to the main surface of the support base 363. Further, a plurality (five in the present embodiment) of the rotation shielding walls 371 are provided. The rotation shield wall 371 is disposed in a path through which the cool air blown by the blower 47 flows, and shields the air path.

The shielding wall driving mechanism 360 includes a cam 361, a rotating plate 373, and a driving motor 374 for rotating the rotating plate 373. Here, a shielding wall drive mechanism 360 is provided on each of the rotating shielding walls 371. That is, five shielding wall driving mechanisms 360 are provided for the five rotating shielding walls 371. By adopting such a configuration, each shield wall driving mechanism 360 rotates the rotary shield wall 371 based on an instruction from a control device (not shown), thereby changing the rotation pattern of the rotary shield wall 371. It can be realized without limitation. The specific shape and function of the shielding wall driving mechanism 360 will be described later.

遮蔽 With reference to FIG. 32, a description will be given of a shielding wall driving mechanism 360 that drives the above-described rotating shielding wall 371. FIG. 32 (A) is an exploded perspective view showing the shielding wall driving mechanism 360, and FIG. 32 (B) is a perspective view showing the cam 361.

Referring to FIG. 32A, shielding wall driving mechanism 360 includes cam 361, rotating plate 373 with which moving shaft 376 of cam 361 is engaged, and driving motor 374 that rotates rotating plate 373. I have.

The cam 361 is a flat rectangular parallelepiped member made of synthetic resin. As shown in FIG. 32 (B), the cam 361 is formed at the right end thereof with a rotation connecting portion 348 having a hole through which the pin 355 can be inserted. The cam 361 is slidably accommodated in a cam accommodating portion in which the front surface of the support base 363 shown in FIG.

The rotation plate 373 is a plate-like member having a substantially tongue-like shape, and has a left end connected to a rotation shaft of the drive motor 374 so as not to rotate relatively. Therefore, the rotation plate 373 is rotated by the drive motor 374. A moving shaft slide groove 380 for moving the moving shaft 376 of the cam 361 is formed on the right side of the rotating plate 373. The moving shaft slide groove 380 has an arcuate shape, and the moving shaft 376 of the cam 361 is slidably engaged with the moving shaft slide groove 380.

回動 A turning connection portion 368 is formed on the turning shield wall 371 so as to project from the base end of the turning shield wall 371 in an inclined manner. A hole through which the pin 355 can be inserted is formed in the rotation connection portion 368. In the vicinity of both ends of the side of the rotation shielding wall 371, a rotation connection portion 364 is formed. A hole through which the pin 369 can be inserted is formed in the rotation connecting portion 364.

移動 As shown in FIG. 32 (B), the moving shaft 376 is a columnar protrusion protruding from the front surface of the cam 361. The diameter of the moving shaft 376 is slightly shorter than the width of the moving shaft slide groove 380 formed in the rotating plate 373. The moving shaft 376 is slidably engaged with the moving shaft slide groove 380.

Referring again to FIG. 32A, the cam 361 is inserted by inserting the pin 355 into the hole of the rotation connection portion 348 of the cam 361 and the hole of the rotation connection portion 368 of the rotation shielding wall 371. And the rotation shielding wall 371 are connected to be rotatable around the pin 355. In addition, the rotation shielding wall 371 is rotatably connected to the support base 363 shown in FIG. 31A via a pin 369 inserted into the rotation connection portion 364 of the rotation shielding wall 371.

With such a configuration, with reference to FIG. 32A, by rotating the moving shaft slide groove 380 with the drive motor 374, the opening and closing operation of the rotation shielding wall 371 can be performed. Specifically, when the drive motor 374 rotates the rotating plate 373, the moving shaft 376 moves in the left and right direction along the moving shaft slide groove 380, that is, the cam 361 moves in the left and right direction. Along with the movement of the cam 361, the rotation shielding wall 371 rotatably connected to the cam 361 opens and closes by rotating about the rotation connection portion 364 as a rotation center.

Here, as shown in FIG. 4 (B), each member constituting the shielding wall driving mechanism 360 is not exposed to the freezing room supply air passage 31 through which the cool air flows. Therefore, since cool air is not blown to the shielding wall driving mechanism 360, it is possible to prevent the shielding wall driving mechanism 360 from freezing.

FIG. 33 is a diagram showing a shielding device 370 according to an embodiment of the present invention, and FIG. 33 (A) is a diagram showing a turning shielding wall 3711 and the like of the shielding device 370 as viewed from the rear, and FIG. FIG. 3 is a diagram showing a configuration of a rotating plate viewed from the front.

（Referring to FIG. 33A, shielding device 370 has rotating shielding

walls

371, 3712, 3713, 3714, and 3715 as rotating shielding wall 371 described above. The rotation shielding wall 3711 to the rotation shielding wall 3715 have a rectangular shape having a long side substantially parallel to a tangent to the outer edge of the blower 47 shown in FIG. Further, the rotation shielding wall 3711 to the rotation shielding wall 3715 are rotatably attached to the peripheral portion of the support base 363 shown in FIG.

半径 A radially inner end of the rotation shielding wall 3711 is rotatably connected to a cam 3611 on which a moving shaft 3761 is formed. Similarly, a radially inner end of the rotation blocking wall 3712 is rotatably connected to a cam 3612 having a moving shaft 3762 formed therein. A radially inner end of the rotation shielding wall 3713 is rotatably connected to a cam 3613 having a moving shaft 3763 formed thereon. Further, a radially inner end portion of the rotation shielding wall 3714 is rotatably connected to a cam 3614 on which a moving shaft 3764 is formed. A radially inner end of the rotation shielding wall 3715 is rotatably connected to a cam 3615 having a moving shaft 3765 formed thereon.

The cam 3611 to the cam 3615 are rotatably connected to the rotation shielding wall 3711 to the inner side of the rotation shielding wall 3715, respectively. Accordingly, the cam 3611 to the cam 3615 are disposed outside, and the rotation shielding wall 3711 to the rotation shielding wall 3715 are in an upright state. On the other hand, when the cam 3612 to the cam 3615 are arranged inside, the rotation shielding wall 3712 to the rotation shielding wall 3715 are in the lying state.

を Referring to FIG. 33 (B), the moving shaft 3761 of the cam 3611 is slidably engaged with the moving shaft slide groove 3801 of the rotating plate 3731. The moving shaft 3762 of the cam 3612 is slidably engaged with the moving shaft slide groove 3802 of the rotating plate 3732. The moving shaft 3763 of the cam 3613 is slidably engaged with the moving shaft slide groove 3803 of the rotating plate 3733. The moving shaft 3764 of the cam 3614 is slidably engaged with the moving shaft slide groove 3804 of the rotating plate 3734. The moving shaft 3765 of the cam 3615 is slidably engaged with the moving shaft slide groove 3805 of the rotating plate 3735. With such a configuration, by rotating the rotating plate 3731 to the rotating plate 3735, the cam 3611 to the cam 3615 can be slid in a predetermined direction to open and close the rotating shielding wall 3711 to the rotating shielding wall 3715.

FIG. 34 shows the configuration of the shielding device 370 in the fully closed state. FIG. 34 (A) is a view of the shielding device 370 in the fully closed state as viewed from the rear, and FIG. 34 (B) is a cross-sectional view taken along a line DD of FIG. 34 (A). (C) is a view of the rotating plate 373 and the like in the fully closed state as viewed from the front, and FIG. 34 (D) is an enlarged view of a main part of FIG. 34 (B). Here, the fully closed state is a state in which the periphery of the blower 47 is shielded by the rotary shield wall 371, thereby closing the blower port 27 illustrated in FIG. In this fully closed state, the blower 47 does not rotate.

Referring to FIG. 34 (A), shielding device 370 prevents air from flowing out of blower 47 to the outside in the fully closed state. That is, in the fully closed state, all the rotation shielding walls 371 are in the upright state, the communication with the air path for supplying cool air is cut off, and cool air is not supplied to the refrigerator compartment 15 and the freezer compartment 17. Further, even in the defrosting step of defrosting the cooler 45 shown in FIG. 2, warm air does not flow from the cooling chamber 26 to the refrigerator compartment 15 and the freezer compartment 17 because the shielding device 370 is in the fully closed state.

（Referring to FIG. 34 (B), in the fully closed state, rotation blocking wall 371 is in a closed state in which it stands substantially perpendicular to the main surface of support base 363. Here, all the rotation shielding walls 371 of the shielding device 370 are in the closed state. In this state, the rear end of the rotation shielding wall 371 is in contact with the partition 66 shown in FIG. By doing so, the airtightness when closing the air path with the rotation shielding wall 371 can be improved.

（Referring to FIG. 34 (C), when bringing the shielding device 370 into the fully closed state, first, the drive motor 374 is driven to rotate the rotating plate 373. Here, by rotating the rotating plate 373 counterclockwise, the moving shaft 376 is slid in the moving shaft slide groove 380, and the moving shaft 376 is arranged at the outer end of the moving shaft slide groove 380. As a result, as shown in FIG. 34D, the cam 361 moves radially outward. The rotation shielding wall 371 rotatably connected to the cam 361 rotates around the rotation connection portion 368 as a rotation center, and stands up substantially at right angles to the main surface of the support base 363. It becomes.

FIG. 35 shows the configuration of the shielding device 370 in the fully opened state. FIG. 35 (A) is a view of the shielding device 370 in the fully opened state as viewed from the rear, and FIG. 35 (B) is a cross-sectional view taken along the line EE of FIG. 35 (A). FIG. 35C is a view of the rotating plate 373 and the like in the fully opened state as viewed from the front, and FIG. 35D is an enlarged view of a main part of FIG. 35B. Here, the fully open state is a state in which the surroundings of the blower 47 are not blocked by the turning shield wall 371 from communicating with the air path that supplies the cool air, whereby the cool air blown by the blower 47 spreads around.

を Referring to FIG. 35 (A), shielding device 370 does not hinder the flow of air from blower 47 to the outside when fully opened. That is, in the fully opened state, the cool air blown from the blower 47 by the shielding device 370 is blown to the refrigerating room 15 and the freezing room 17 without being interfered by the rotating shielding wall 371. As shown in FIG. 35 (A), in the fully opened state, all the rotation shielding walls 371 are in a reclined state in which they fall down radially outward.

を Referring to FIG. 35 (B), in the fully opened state, all the rotation shielding walls 371 are in a recumbent state substantially parallel to the main surface of support base 363. When all the rotation shielding walls 371 of the shielding device 370 are in the open state, the rotation shielding wall 371 does not exist in the air path blown from the blower 47, and the flow path resistance of the air path is reduced. 47 can be increased.

With reference to FIG. 35 (C), when the shielding device 370 is fully opened, the drive motor 374 is driven to rotate the rotating plate 373 clockwise, and the moving shaft 376 is moved to the moving shaft slide groove 380. Slide inside. Thus, the moving shaft 376 moves to the inner end of the moving shaft slide groove 380. Then, as shown in FIG. 35D, the cam 361 moves inward in the radial direction. As a result, the rotation shielding wall 371 rotatably connected to the end of the cam 361 rotates and falls around the rotation connection portion 368 as a rotation center, and the main surface of the rotation shielding wall 371 is turned. , Is substantially parallel to the main surface of the support base 363.

As described above, the shielding device 370 according to the present embodiment separately rotates the rotating plate 3731 to the rotating plate 3735 by the driving motor 3741 to the driving motor 3745, and thereby the rotation shielding illustrated in FIG. The wall 3711 or the turning shield wall 3715 can be individually turned to open and close. Therefore, since the rotation operation of the rotation shielding wall 3711 or the rotation shielding wall 3715 can be freely controlled, the cool air is cooled according to the temperature in the refrigerator room 15, the freezing room 17 and the vegetable room 20 shown in FIG. The air volume can be controlled precisely.

Further, referring to FIG. 3, since the volume occupied by shielding device 370 can be reduced, the internal volume of freezing compartment 17 formed in front of shielding device 370 is increased, and more frozen objects are provided. Can be stored in the freezer 17.

With reference to FIGS. 36 to 38, a shielding device 370 according to another embodiment will be described. The configuration of the shielding device 370 described with reference to these drawings is different in that a solenoid 381 is provided as a driving source of the shielding wall driving mechanism 360, and therefore, the description will be focused on this point.

With reference to FIG. 36, a configuration of a shielding device 370 according to another embodiment will be described. FIG. 36 (A) is an exploded perspective view of the shielding device 370, and FIG. 36 (B) is a sectional view showing the shielding wall driving mechanism 360.

（Referring to FIG. 36 (A), shielding device 370 has blower 47, rotating shielding wall 371, support base 363, and shielding wall driving mechanism 360 from the rear side. Here, the shielding wall driving mechanism 360 is arranged corresponding to each of the rotating shielding walls 371. Except for the configuration of the shielding wall driving mechanism 360, the configuration is the same as that of the shielding device 370 shown in FIG.

（Referring to FIG. 36B, shielding wall drive mechanism 360 includes a cam 361 having a contact portion 382 formed thereon, and a solenoid 381.

The cam 361 is made of an integrally molded synthetic resin or the like, and the upper end of the cam 361 is rotatably connected to the rotation shielding wall 371. A contact portion 382 that projects forward is formed at a lower portion of the cam 361. The configuration in which the cam 361 and the rotation shielding wall 371 are rotatably connected is as shown in FIG.

可動 A movable portion 387 is formed downward from the lower end of the solenoid 381. The lower end of the movable portion 387 of the solenoid 381 is connected to the contact portion 382 of the cam 361. When the solenoid 381 is energized, the movable part 387 is arranged above, and when the solenoid 381 is not energized, the movable part 387 is arranged below.

By controlling energization or non-energization of the solenoid 381 by the shielding wall driving mechanism 360 having such a configuration, the cam 361 can be moved to rotate the rotating shielding wall 371, and the rotating shielding wall 371 can be opened and closed. .

FIG. 37 shows the configuration of the shielding device 370 in the fully closed state. FIG. 37 (A) is a view of the shielding device 370 in the fully closed state as viewed from the rear, and FIG. 37 (B) is a cross-sectional view taken along the line FF of FIG. 37 (A). (C) is a diagram of the solenoid 381 and the like in the fully closed state as viewed from the front, and FIG. 37 (D) is an enlarged view of a main part of FIG. 37 (B).

Referring to FIGS. 37 (A) and 37 (B), shielding device 370 prevents air from flowing out of blower 47 to the outside in the fully closed state. In the fully closed state, the rotation shielding wall 371 is in a closed state that stands up substantially perpendicular to the main surface of the support base 363. Here, all the rotation shielding walls 371 of the shielding device 370 are in the closed state.

を Referring to FIG. 37 (C), when the shielding device 370 is to be fully closed, first, the solenoid 381 is driven to move the movable portion 387 outward in the radial direction. As a result, as shown in FIG. 37D, the cam 361 connected to the movable portion 387 of the solenoid 381 via the contact portion 382 moves radially outward. On the paper, the cam 361 moves upward. The rotation shielding wall 371 rotatably connected to the cam 361 rotates around the rotation connection portion 368 as a rotation center, and stands up substantially at right angles to the main surface of the support base 363. It becomes.

FIG. 38 shows the configuration of the shielding device 370 in the fully opened state. FIG. 38 (A) is a view of the shielding device 370 in the fully opened state as viewed from the rear, and FIG. 38 (B) is a cross-sectional view taken along the line GG of FIG. 38 (A). FIG. 38C is a view of the solenoid 381 and the like in the fully opened state as viewed from the front, and FIG. 38D is an enlarged view of a main part of FIG. 38B.

（Referring to FIGS. 38 (A) and 38 (B), shielding device 370 does not hinder the flow of air from blower 47 to the outside when fully opened. In the fully opened state, all the rotation shielding walls 371 are in a lying state that is substantially parallel to the main surface of the support base 363.

を Referring to FIG. 38C, when the shielding device 370 is fully opened, the solenoid 381 is driven to cause the movable portion 387 to protrude. Thus, as shown in FIG. 38D, the movable portion 387 presses the contact portion 382, and the cam 361 moves inward in the radial direction. As a result, the rotation shielding wall 371 rotatably connected to the end of the cam 361 rotates and falls around the rotation connection portion 368 as a rotation center, and the main surface of the rotation shielding wall 371 is turned. , Is substantially parallel to the main surface of the support base 363.

As described above, even when the solenoid 381 is provided as the drive source of the shield wall drive mechanism 360, the same effect as when the drive motor 374 is provided as the drive source of the shield wall drive mechanism 360 is obtained. Can play. That is, each rotation shielding wall 371 can be individually controlled to open and close, the degree of freedom in controlling the opening and closing of the air path can be increased, and the temperature inside the storage can be adjusted with high accuracy.

With reference to FIG. 39, a configuration of a shielding device 370 according to still another embodiment will be described. In the above-described shielding device 370, for example, as shown in FIG. 31A, a shielding wall driving mechanism 360 is provided for each rotating shielding wall 371. On the other hand, in the shielding device 370 shown in FIG. 39, the opening and closing operations of the rotating shielding wall 3711 to the rotating shielding wall 3714 are driven by the shielding wall driving mechanism 3601 and the shielding wall driving mechanism 3602. That is, the opening / closing operation of the four rotating shielding walls 3711 to 3714 is driven by the two shielding

wall driving mechanisms

3601 and 3602. Here, the inner side of the rotation shielding wall 3711 to the rotation shielding wall 3714 is rotatably attached to the support base 363 illustrated in FIG.

The shielding wall drive mechanism 3601 has a winding portion 3851, a drive motor 3741, a wire 3861 and a wire 3862. The drive motor 3741 rotates the substantially rod-shaped winding portion 3851 in the normal rotation direction or the reverse rotation direction. One end of the wire 3861 is connected to the rotation shielding wall 3711, and the other end is connected to the winding portion 3851. One end of the wire 3862 is connected to the rotation shielding wall 3712, and the other end is connected to the winding portion 3851. The shielding wall driving mechanism 3601 drives opening and closing operations of the rotating shielding wall 3711 and the rotating shielding wall 3712.

With this configuration, by rotating the drive motor 3741 in the normal rotation direction, the winding portion 3851 rotates, so that the wire 3861 and the wire 3862 are wound, and the rotation shielding wall 3711 and the rotation shielding wall 3712 are in the lying state. From the upright position, and the closed state closes the air path. On the other hand, by rotating the drive motor 3741 in the reverse direction, the winding 3851 rotates, so that the wire 3861 and the wire 3862 are fed out, and the rotation shielding wall 3711 and the rotation shielding wall 3712 are changed from the standing state to the lying state. As a result, the above-mentioned air path is opened to open.

The shielding wall drive mechanism 3602 has a winding portion 3852, a drive motor 3742,

wires

3863 and 3864. The drive motor 3742 rotates the substantially rod-shaped winding portion 3852 in the normal rotation direction or the reverse rotation direction. One end of the wire 3863 is connected to the rotation shielding wall 3713, and the other end is connected to the winding portion 3852. One end of the wire 3864 is connected to the rotation shielding wall 3714, and the other end is connected to the winding portion 3852. The shielding wall drive mechanism 3602 drives opening and closing operations of the rotating shielding wall 3713 and the rotating shielding wall 3714.

With such a configuration, by rotating the drive motor 3742 in the normal rotation direction, the winding portion 3852 rotates to wind the wire 3863 and the wire 3864, and the rotation shielding wall 3713 and the rotation shielding wall 3714 are in the lying state. From the upright position, and the closed state closes the air path. On the other hand, by rotating the drive motor 3742 in the reverse direction, the winding portion 3852 rotates, whereby the wire 3863 and the wire 3864 are paid out, and the rotation shielding wall 3713 and the rotation shielding wall 3714 are changed from the standing state to the lying state. As a result, the above-mentioned air path is opened to open.

As described above, the opening / closing operation of the rotation shielding wall 3711 or the rotation shielding wall 3714 is individually driven by the shielding wall driving mechanism 3601 and the shielding wall driving mechanism 3602, so that the rotation shielding wall 3711 or the rotation shielding wall is driven. The configuration of the shielding device 370 can be simplified while securing the degree of freedom of the opening and closing operation of the 3714.

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, referring to FIG. 32 (A), by disposing moving shaft 376 at an intermediate portion of moving shaft slide groove 380, rotation blocking wall 371 can be half-opened. By doing so, the amount of cool air blown into the storage room can be finely controlled.

から From the third embodiment, the following invention can be understood.

The present invention relates to a shielding device that closes an air path through which cool air is blown inside a refrigerator, and a plurality of rotating shielding walls that surround the blower from a radial outside, and a shielding wall driving mechanism that drives the rotating shielding wall. And a plurality of the shielding wall driving mechanisms are provided. Thus, according to the shielding device of the present invention, by having a plurality of shielding wall driving mechanisms, the rotating shielding walls can be individually operated, and the degree of freedom of the opening and closing operation of the entire rotating shielding wall is improved. can do.

In the shield device of the present invention, the shield wall drive mechanism is provided for each of the rotary shield walls. Thus, according to the shielding device of the present invention, since the shielding wall driving mechanism is provided corresponding to each of the rotating shielding walls, the rotating shielding walls can be individually rotated, and The degree of freedom of the opening / closing operation of the shielding wall can be further increased.

Further, in the shielding device of the present invention, the shielding wall driving mechanism includes a cam rotatably connected to the rotating shielding wall, a rotating plate having a groove for slidingly moving the cam, and rotating, And a drive motor for rotating the rotating plate. Thus, according to the shield device of the present invention, the rotary shield wall can be opened and closed with a simple configuration including the drive motor.

Further, in the shield device of the present invention, the shield wall driving mechanism includes a cam rotatably connected to the rotary shield wall, and a solenoid for moving the cam. Thus, according to the shield device of the present invention, the rotary shield wall can be opened and closed with a simple configuration including the solenoid.

The refrigerator according to the present invention includes a cooling unit of a refrigeration cycle for cooling air supplied to the storage room through the air passage, and a cooling unit in which the cooler is provided and an air outlet connected to the storage room is formed. The air conditioner further includes a chamber, the blower that blows the air supplied from the blow port toward the storage chamber, and the shielding device that at least partially blocks the air path. Thus, according to the refrigerator of the present invention, since the rotary shield wall of the shield device is driven by the plurality of shield wall drive mechanisms, the supply of cool air to the storage room is finely set, and the temperature in the storage room is accurately adjusted. You can control well.

[Fourth embodiment]
A shielding device 470 according to the fourth embodiment will be described with reference to FIGS. The basic configuration of the shielding device 470 according to the fourth embodiment and the configuration applied to the refrigerator 10 are the same as those of the first embodiment, and therefore, the description will focus on the differences. In this embodiment, the air passage is opened by the rotation shielding wall 471 falling inward in the radial direction.

The configuration of the shielding device 470 will be described with reference to FIG. 40A is an exploded perspective view of the shielding device 470, and FIG. 40B is a side sectional view of the shielding device 470.

（Referring to FIGS. 40A and 40B, the shielding device 470 includes a support base 463, a rotating shielding wall 471, and a shielding wall driving mechanism 460. The shielding device 470 is a device that shields the air path of the cool air blown by the blower 47. By setting the shielding device 470 to the open state, the air path connecting the cooling chamber 26 and each storage room is communicated, and by setting the shielding device 470 to the closed state, the air path is shut off.

The blower 47 is disposed at the center of the front surface of the support base 463 via fastening means such as screws. Although not shown here, the blower 47 includes, for example, a centrifugal fan such as a turbo fan and a blower motor for rotating the centrifugal fan, and blows cool air radially outward.

The support base 463 is a member made of synthetic resin that is integrally molded. On the rear surface side of the support base 463, each of the rotation shielding walls 471 is rotatably disposed. Further, a cam housing portion 462 for housing the cam 461 is formed on the front side of the support base 463. The cam storage section 462 will be described later with reference to FIG. A rotating plate 473 is rotatably mounted on the front side of the support base 463. Further, a drive motor 474 for generating a driving force for rotating the rotation shielding wall 471 is also attached to the support base 463.

側壁 A side wall 458 is formed around the support base 463. The side wall portion 458 is a portion extending rearward from the support base 463. A plurality of side wall portions 458 are arranged at substantially equal intervals in the circumferential direction of the support base 463. The side wall portion 458 is disposed between the rotation shielding walls 471. The rear end of the side wall 458 is fastened to the partition 66 shown in FIG. 4B via fastening means such as screws.

The rotation blocking wall 471 is a plate-like member made of a rectangular synthetic resin, and has a long side along the outer edge of the rotating plate 473. The rotation shielding wall 471 is attached near the periphery of the support base 463 so as to be rotatable rearward around an axis parallel to the main surface of the support base 463. Further, a plurality (5 in the present embodiment) of the rotation shielding walls 471 are arranged near the peripheral portion of the support base 463. The rotation shielding wall 471 is disposed in a path through which the cool air blown by the blower 47 flows, and shields the air path.

The rotating plate 473 is made of a substantially disk-shaped steel plate or a synthetic resin plate when viewed from the front, and is rotatably disposed in front of the support base 463. The rotation plate 473 has a moving shaft slide groove 480 for rotating the rotation shielding wall 471. A gear 477 for transmitting torque is formed on the periphery of the rotating plate 473. As will be described later, the drive motor 474 is driven, torque is transmitted via the gear portion 477, and the rotation plate 473 is rotated, whereby the rotation shield wall 471 is opened and closed.

(4) A flange to which a drive motor 474 for driving the rotation of the rotating plate 473 is mounted on the right side of the support base 463. A gear (not shown) is arranged between the gear 477 of the rotating plate 473 and the drive motor 474.

Referring to FIG. 41, a description will be given of a shielding wall driving mechanism 460 that drives the above-described rotating shielding wall 471. FIG. 41 (A) is an exploded perspective view showing a left portion of the shielding device 470, and FIG. 41 (B) is a perspective view showing a cam 461.

Referring to FIG. 41A, a shielding wall driving mechanism 460 includes a cam 461, a rotating plate 473 with which a moving shaft 476 of the cam 461 is engaged, and a driving motor 474 for rotating the rotating plate 473 (see FIG. ))).

The cam 461 is a flat rectangular parallelepiped member made of synthetic resin. As shown in FIG. 41 (B), at one end of the cam 461, a rotation connection portion 448 having a hole through which the pin 455 can be inserted is formed. The cam 461 is housed in the cam housing 462 of the support base 463.

The moving shaft 476 is a columnar protrusion protruding from the front surface of the cam 461 as shown in FIG. The diameter of the moving shaft 476 is slightly shorter than the width of the moving shaft slide groove 480 formed in the rotating plate 473. The moving shaft 476 is slidably engaged with the moving shaft slide groove 480.

The cam housing 462 is a cavity formed in the support base 463, and is formed to be elongated along the radial direction of the support base 463. The cam accommodating portions 462 are formed corresponding to the respective rotation shielding walls 471, and are formed by recessing the support base 463 from the front. The size of the cam storage portion 462 is such that the cam 461 can be stored and the cam 461 can slide in the radial direction.

回動 As shown in FIG. 41A, a turning connection portion 468 is formed on the turning shielding wall 471 so as to project obliquely from the base end of the turning shielding wall 471. A hole through which the pin 455 can be inserted is formed in the rotation connection portion 468. In addition, a rotation connecting portion 464 is formed near both ends of the side of the rotation shielding wall 471. The rotation connecting portion 464 has a hole through which the pin 469 can be inserted.

回動 A rotation connecting portion 454 is formed near the periphery of the support base 463. The rotation connection portions 454 are provided corresponding to the rotation connection portions 464 of the respective rotation shielding walls 471. The rotation connection portion 454 has a hole through which the pin 469 can be inserted.

The pin 455 is inserted into the hole of the rotation connection part 448 of the cam 461 and the hole of the rotation connection part 468 of the rotation shield wall 471, so that the cam 461 and the rotation shield wall 471 are around the pin 455. Is rotatably connected. Further, the pin 469 is inserted into the hole of the rotation connection portion 454 of the support base 463 and the hole of the rotation connection portion 464 of the rotation shield wall 471, so that the support base 463 and the rotation shield wall 471 are inserted. And are connected rotatably.

By configuring the shielding wall drive mechanism 460 as described above, the drive motor 474 is driven to rotate the rotating plate 473, and the moving shaft 476 slides in the moving shaft slide groove 480. This causes the cam 461 to slide within the cam housing 462. By sliding the cam 461, the rotation shielding wall 471 can be rotated around the pin 455.

Specifically, when the cam 461 is slid to the center side of the support base 463, the rotation shielding wall 471 rotates so as to be in an upright state with the rotation connecting portion 464 as a rotation center, and the rotation shielding wall 471 is rotated. 471 is perpendicular to the main surface of the support base 463. On the other hand, when the cam 461 is slid toward the peripheral edge of the support base 463, the rotation shielding wall 471 rotates so as to be in a reclined state around the rotation connecting portion 464, and the rotation shielding wall 471 is supported. The state is substantially parallel to the main surface of the base 463.

Therefore, if the moving shaft slide groove 480 is formed on the peripheral edge side of the support base 463, the rotation shielding wall 471 can be opened. Conversely, if the moving shaft slide groove 480 is formed on the center side of the support base 463, the rotation shielding wall 471 can be closed. By utilizing this principle and selecting the shape of the moving shaft slide groove 480 corresponding to each rotation shielding wall 471, the open / close state of each rotation shielding wall 471 can be arbitrarily set. Thus, the rotation shield wall 471 can be fully opened or fully closed without employing a complicated configuration, and some of the rotation shield walls 471 are in a closed state or an open state. It can also be in a state.

Here, as shown in FIG. 41A, the rotating plate 473 and the cam 461 constituting the shielding wall driving mechanism 460 are arranged on the front side of the support base 463. Therefore, referring to FIG. 4 (B), each member constituting shield wall drive mechanism 460 is not exposed to freezer compartment supply air passage 31 through which cool air flows. Therefore, since cool air is not blown to the shielding wall driving mechanism 460, it is possible to prevent the shielding wall driving mechanism 460 from freezing.

（Referring to FIG. 41 (A), when turning shield wall 471 is closed, each end of turning shield wall 471 in the longitudinal direction comes into contact with side wall portion 458. In this manner, by forming the side wall portions 458 at each end in the longitudinal direction of the rotation shielding wall 471, the airtightness when the rotation shielding wall 471 is in the closed state can be improved, so that the cooling air can be cooled. Cold air leakage and inflow of warm air at the time of defrost can be reliably suppressed.

枠 Furthermore, a frame 441 is formed between the side walls 458. The size of the frame portion 441 is approximately equal to the size of the rotation shielding wall 471. When the turning shielding wall 471 is in the upright state, the turning shielding wall 471 comes into contact with the inside from the inside. With such a configuration, the peripheral portion of the rotation shielding wall 471 is in close contact with the frame portion 441, and the air passage can be closed with higher airtightness.

FIG. 42 is a diagram illustrating a shielding device 470 according to an embodiment of the present invention, FIG. 42 (A) is a diagram illustrating a turning shielding wall of the shielding device as viewed from the rear, and FIG. 42 (B) is a rotating plate. FIG. 3 is a diagram showing the configuration of FIG.

Referring to FIG. 42 (A), shielding device 470 has rotating shielding

walls

471, 4712, 4713, 4714, and 4715 as rotating shielding wall 471 described above. The rotation shielding wall 4711 to the rotation shielding wall 4715 have a rectangular shape having a long side substantially parallel to a tangential direction of the rotation plate 473. Further, the rotation shielding wall 4711 to the rotation shielding wall 4715 are rotatably attached to a peripheral portion of the support base 463 shown in FIG.

半径 A radially inner end of the rotation shielding wall 4711 is rotatably connected to a cam 4611 on which a moving shaft 4761 is formed. Similarly, a radially outer end of the rotary shield wall 4712 is rotatably connected to a cam 4612 having a moving shaft 4762 formed thereon. The radially outer end of the rotation blocking wall 4713 is rotatably connected to a cam 4613 having a moving shaft 4763 formed thereon. Further, a radially outer end of the rotation shielding wall 4714 is rotatably connected to a cam 4614 on which a moving shaft 4764 is formed. The radially outer end of the rotation blocking wall 4715 is rotatably connected to a cam 4615 having a moving shaft 4765 formed thereon.

Here, the cam 4611 is rotatably connected to the inner side of the rotation shielding wall 4711. As a result, the rotation shielding wall 4711 is placed in an upright state when the cam 4611 is disposed outside, and the rotation shielding wall 4711 is placed in a lying state when the cam 4611 is disposed inside.

On the other hand, the cams 4612 to 4615 are rotatably connected to the outer side sides of the rotation shielding wall 4712 to the rotation shielding wall 4715, respectively. Accordingly, the cam 4612 to the cam 4615 are arranged inside, so that the turning shielding wall 4712 to the turning shielding wall 4715 are in an upright state. On the other hand, by disposing the cam 4612 to the cam 4615 on the outside, the turning shielding wall 4712 to the turning shielding wall 4715 are in the lying state.

Referring to FIG. 42 (B), rotating plate 473 is a steel plate formed in a substantially disk shape, and has a plurality of moving shaft slide grooves 480 for controlling the opening / closing operation of rotation blocking wall 4711 and the like. Have been. A gear 477 is formed on a part of the peripheral edge of the rotating plate 473. When the drive motor 474 and the gear 477 shown in FIG. The rotating plate 473 rotates.

移動 On the rotating plate 473, moving

shaft slide grooves

4801, 4802, 4804, and 4805 are formed as the moving shaft slide grooves 480. The moving shaft slide groove 4801 to the moving shaft slide groove 4805 are groove-shaped portions formed along the circumferential direction of the rotating plate 473. The moving shaft slide groove 4801 to the moving shaft slide groove 4805 have a predetermined bent shape in order to slide the cam 4611 to the cam 4615 shown in FIG. 42A in the radial direction.

(4) The moving shaft 4761 or the moving shaft 4765 shown in FIG. 42A is engaged with the moving shaft slide groove 4801 or the moving shaft slide groove 4805. Specifically, the moving shaft 4761 is engaged with the moving shaft slide groove 4801, the moving shaft 4762 and the moving shaft 4763 are engaged with the moving shaft slide groove 4802, and the moving shaft 4764 is engaged with the moving shaft slide groove 4804. The moving shaft 4765 is engaged with the moving shaft slide groove 4805.

The moving shaft slide groove 4801 is composed of a groove 48011 to a groove 48013. The groove portion 48011 extends in the circumferential direction, the groove portion 48012 inclines counterclockwise inward in the radial direction, and the groove portion 48013 extends in the circumferential direction.

The moving shaft slide groove 4802 is composed of a groove 48021 to a groove 48029. The groove portion 48021 is inclined inward in the radial direction in the counterclockwise direction, the groove portion 48022 is extended in the circumferential direction, the groove portion 48023 is inclined in the radially outward direction in the counterclockwise direction, and the groove portion 48024 is inclined. It extends along the circumferential direction. The groove portion 48025 is inclined inward in the radial direction in the counterclockwise direction, the groove portion 48026 is extended in the circumferential direction, and the groove portion 48027 is inclined in the counterclockwise direction outward in the radial direction. Further, the groove portion 48028 extends in the circumferential direction, and the groove portion 48029 is inclined inward in the radial direction in the counterclockwise direction.

The moving shaft slide groove 4804 is composed of a groove 48041 to a groove 48044. The groove 48041 extends in the circumferential direction, the groove 48042 inclines radially outward in a counterclockwise direction, the groove 48043 extends in the circumferential direction, and the groove 48044 has a radius in the counterclockwise direction. Inclining in the direction.

The moving shaft slide groove 4805 is composed of a groove 48051 to a groove 48056. The groove portion 48051 is inclined inward in the radial direction in the counterclockwise direction, the groove portion 48052 is extended in the circumferential direction, the groove portion 48053 is inclined outward in the counterclockwise direction, and the groove portion 48054 is inclined in the counterclockwise direction. It extends along the circumferential direction. The groove 48055 is inclined in a counterclockwise direction inward in the radial direction, and the groove 48056 extends along the circumferential direction.

回転 A rotary shaft slide groove 479 extending along the circumferential direction is formed in the inner portion of the rotary plate 473. Here, three rotation shaft slide grooves 479 are formed at equal intervals. The rotating plate 473 is held by the support base 463 via a rotating shaft 475 (see FIG. 43C) slidably engaged with the rotating shaft slide groove 479.

FIG. 43 shows the configuration of the shielding device 470 in the fully closed state. FIG. 43 (A) is a view of the shielding device 470 in the fully closed state as viewed from the rear, and FIG. 43 (B) is a cross-sectional view taken along the line HH of FIG. 43 (A). FIG. 43 (C) is a view of the rotating plate 473 and the like in the fully closed state as viewed from the rear, and FIG. 43 (D) is an enlarged view of a main part of FIG. Here, the fully closed state is a state in which the periphery of the blower 47 is shielded by the rotary shield wall 471, thereby closing the blower port 27 illustrated in FIG. In this fully closed state, the blower 47 does not rotate.

Referring to FIG. 43 (A), shielding device 470 prevents air from flowing out of blower 47 to the outside in the fully closed state. That is, in the fully closed state, all the rotation shielding walls 471, that is, the rotation shielding walls 4711 to 4715 are in the upright state, and communication with the air path for supplying cool air is shut off. Also, no cool air is supplied to the freezer compartment 17. Further, even in the defrosting step of defrosting the cooler 45 shown in FIG. 2, warm air does not flow into the refrigerator compartment 15 and the freezer compartment 17 from the cooling compartment 26 because the shielding device 470 is in the fully closed state.

Referring to FIG. 43B, in the fully closed state, the rotation shielding wall 4715 and the rotation shielding wall 4712 are in a closed state in which the rotation shielding wall 4715 stands substantially perpendicularly to the main surface of the support base 463. In this state, the rear ends of the

rotation shielding walls

4715 and 4712 are in contact with the partition 66 shown in FIG. By doing so, the airtightness when closing the air path with the rotation shielding wall 471 can be improved.

（Referring to FIG. 43 (C), when closing shield device 470 in the fully closed state, first, drive motor 474 is driven to rotate rotation plate 473 via gear 430. Here, by rotating the rotating plate 473, the moving shaft 4761 is arranged at a radially outer portion of the moving shaft slide groove 4801. In addition, a moving shaft 4762 and a moving shaft 4763 are arranged in a radially inner portion of the moving shaft slide groove 4802. Further, a moving shaft 4764 is arranged at a radially inner portion of the moving shaft slide groove 4804, and a moving shaft 4765 is arranged at a radially inner portion of the moving shaft slide groove 4805.

結果 As a result, as shown in FIG. 43D, the cam 4615 moves radially inward by disposing the moving shaft 4765 at the radially inner portion. The rotation shielding wall 4715 rotatably connected to the cam 4615 rotates radially outward around the rotation connection portion 468 as a rotation center, and is substantially rotated with respect to the main surface of the support base 463. The closed state stands at a right angle.

FIG. 44 shows the configuration of the shielding device 470 in the fully opened state. FIG. 44 (A) is a view of the shielding device 470 in the fully opened state as viewed from the rear, and FIG. 44 (B) is a cross-sectional view taken along the line II of FIG. 44 (A). FIG. 44C is a view of the rotating plate 473 and the like in the fully opened state as viewed from the rear, and FIG. Here, the fully open state is a state in which the surroundings of the blower 47 are not blocked by the turning shield wall 471 from communicating with the air path for supplying the cool air, whereby the cool air blown by the blower 47 spreads around.

参照 Referring to FIG. 44 (A), shield device 470 does not hinder the flow of air from blower 47 to the outside when fully opened. That is, in the fully opened state, the cool air blown from the blower 47 by the shielding device 470 is not interfered with by the rotating shielding wall 471, that is, the rotating shielding wall 4711 or the rotating shielding wall 4715, and the cold room 15 and the freezing room are not interfered with. 17 is blown. As shown in FIG. 44 (A), in the fully opened state, the turning shield wall 4711 is in a reclined state in which it falls down radially outward, and the turning shield wall 4712 or the turning shield wall 4715 is inward in the radial direction. Lying on its side.

Referring to FIG. 44 (B), in the fully opened state, rotation shielding wall 4715 and rotation shielding wall 4712 are in a lying state substantially parallel to the main surface of support base 463. When all the rotation shielding walls 471 of the shielding device 470 are in the open state, the rotation shielding wall 471 does not exist in the air path blown from the blower 47, and the flow path resistance of the air path is reduced. 47 can be increased.

Referring to FIG. 44 (C), when the shielding device 470 is fully opened, the driving plate 473 is rotated via the gear 430 by driving the driving motor 474, and each moving shaft 476 is moved along the moving shaft. Slide in the slide groove 480. Specifically, the moving shaft 4761 is arranged at a radially inner portion of the moving shaft slide groove 4801. In addition, a moving shaft 4762 and a moving shaft 4763 are arranged at a radially outer portion of the moving shaft slide groove 4802. Further, a moving shaft 4764 is arranged at a radially outer portion of the moving shaft slide groove 4804, and a moving shaft 4765 is arranged at a radially outer portion of the moving shaft slide groove 4805. As a result, as shown in FIG. 44 (D), the cam 4615 moves radially outward by disposing the moving shaft 4765 at the radially outer portion. The rotation shielding wall 4715 rotatably connected to the upper end portion of the cam 4615 is pivoted inward in the radial direction with the rotation center near the rotation connection portion 468 as a rotation center, and falls down, and The main surface of the wall 4715 is substantially parallel to the main surface of the cam housing 462.

As described above, the shielding device 470 according to the present embodiment can switch between the open and closed states of the respective rotating shielding walls 4711 to 4715 by rotating the rotating plate 473 shown in FIG. Therefore, the members are not displaced along the axial direction of the blower 47, that is, along the depth direction of the refrigerator 10. Therefore, the thickness dimension occupied by the shielding device 470 can be reduced. Furthermore, referring to FIG. 3, since the volume occupied by shielding device 470 can be reduced, the internal volume of freezing compartment 17 formed in front of shielding device 470 is increased, so that more frozen objects Can be stored in the freezer 17.

According to the present embodiment, the following invention can be grasped.

The present invention is a shielding device that closes an air passage through which cool air is blown inside a refrigerator, a rotating shielding wall surrounding a blower from a radial outside, and a shielding wall driving mechanism that drives the rotating shielding wall, The rotation shielding wall rotates to fall down inward in the radial direction to release the air path, and rotates to stand up in the radial direction to release the air path. It is characterized by closing. Thus, according to the shielding device of the present invention, the rotation shielding wall pivots outward in the radial direction to shield the air path, so that the direction in which the rotation shielding wall rotates at the time of shielding and the blower Since the direction in which the air is blown substantially coincides, the airtightness at the time of shielding can be improved.

Further, in the shielding device of the present invention, the shielding wall drive mechanism may include a disk-shaped rotating plate having a moving shaft slide groove formed therein, and a moving shaft engaged with the moving shaft slide groove. A cam rotatably connected to a wall, and a drive motor for rotating the rotating plate, wherein the rotating plate rotates, whereby the moving shaft slides in the moving shaft slide groove, When the cam moves inward in the radial direction, the rotation blocking wall closes the air path, and the rotating plate rotates, so that the moving shaft slides in the moving shaft slide groove, so that the cam moves in the radial direction. When it moves outward, the turning shielding wall releases the air path. Thus, according to the shielding device of the present invention, since the opening and closing operation of the rotary shielding wall can be easily driven by the rotating operation of the rotating plate, the conventional shielding device in which the members constituting the shielding device move in the depth direction is used. Compared with the device, the volume occupied by the shielding device can be reduced, and the volume in the refrigerator is not compressed.

Further, in the shielding device of the present invention, the rotation shielding wall is rotatably mounted, and further includes a support base on which a cam housing portion is formed, wherein the cam is provided in the cam housing portion in a radial direction. And is stored in a slidable state. Thus, according to the shielding device of the present invention, the moving direction of the cam is regulated in the radial direction inside the cam housing portion of the support base, so that the opening and closing of the rotary shielding wall is suitably driven by the sliding operation of the cam. can do.

Further, in the shielding device of the present invention, a space is formed between the blower and the rotating shielding wall to allow the rotating shielding wall to fall inward in the radial direction. . Thus, according to the shielding device of the present invention, when the rotating shielding wall is in the open state, a space where the rotating shielding wall can fall can be secured between the blower and the rotating shielding wall. . On the other hand, when the rotation shielding wall is in an open state, a space through which cool air can flow can be sufficiently secured between the rotation shielding wall and the blower.

The refrigerator according to the present invention includes a cooling unit of a refrigeration cycle for cooling air supplied to the storage room through the air passage, and a cooling unit in which the cooler is provided and an air outlet connected to the storage room is formed. The air conditioner further includes a chamber, the blower that blows the air supplied from the blow port toward the storage chamber, and the shielding device that at least partially blocks the air path. Thus, according to the refrigerator of the present invention, the internal volume occupied by the shielding device can be reduced, so that a large effective volume of each storage room can be secured. In addition, since the airflow resistance of the shielding device is small, a large amount of air can be obtained with a small amount of energy, and the storage room can be effectively cooled.

[Fifth Embodiment]
The shielding device 570 according to the fifth embodiment will be described with reference to FIGS. The basic configuration of the shielding device 570 according to the fifth embodiment and the configuration applied to the refrigerator 10 are the same as those of the first embodiment, and therefore, the description will focus on the differences. In the present embodiment, as described later, the moving shafts 576 of the plurality of cams 561 are engaged with the slide grooves 580 of the rotating plate 573.

The configuration of the shielding device 570 will be described with reference to FIG. FIG. 45A is an exploded perspective view of the shielding device 570, and FIG. 45B is a perspective view showing the cam 561.

Referring to FIG. 45A, shielding device 570 includes a support base 563, a rotating plate 573, a lid member 57, and a shielding wall driving mechanism 560.

The shielding device 570 is a device for shielding the air path of the cool air blown by the blower 47. By setting the shielding device 570 to the open state, the air path connecting the cooling chamber 26 and each storage room is communicated, and by setting the shielding device 570 to the closed state, the air path is shut off.

The blower 47 is disposed at the center of the rear surface of the support base 563 via a fastening means such as a screw. The blower 47 includes, for example, a centrifugal fan such as a turbo fan and a blower motor for rotating the centrifugal fan, and blows cool air outward in the radial direction.

The rotation shield wall 571 is a plate-like member made of a rectangular synthetic resin, and has a long side along the tangential direction of the outer edge of the rotation plate 573. The rotation shielding wall 571 is attached to the vicinity of the periphery of the support base 563 so as to be able to rotate rearward. A plurality (four in the present embodiment) of the rotation shielding walls 571 are provided. The rotation shielding wall 571 is disposed in a path through which the cool air blown by the blower 47 flows, and appropriately shields the air path.

枠 A frame-like portion 583 that surrounds the rotation shielding wall 571 in the upright state is adjacent to a base end that is the rotation center of the rotation shielding wall 571. The frame portion 583 is made of a synthetic resin molded in a frame shape, and is arranged on the rear surface of the support base 563 so as to surround the blower 47. The frame portions 583 are arranged corresponding to the respective rotation shielding walls 571, and the rotation shielding walls 571 close the openings of the frame portions 583, thereby closing the air passage.

The rotating plate 573 has a substantially disk shape when viewed from the rear, and is rotatably disposed on the front side of the support base 563. The rotation plate 573 has a slide groove 580 for rotating the rotation shielding wall 571. The slide groove 580 is formed on the rear surface of the rotating plate 573 as a bottomed groove surrounded by a rib. A gear groove 549 for transmitting torque is formed in a peripheral portion of the rotating plate 573. As will be described later, by driving the drive motor and rotating the rotation plate 573, the rotation shielding wall 571 opens and closes.

The lid member 57 is a plate-like member that covers the rotating plate 573 from the front, is formed slightly larger than the rotating plate 573, and has a substantially circular shape when viewed from the front.

The shielding wall driving mechanism 560 that performs the opening and closing operation of the above-described rotating shielding wall 571 includes a rotating plate 573, a cam 561, and a driving motor 574 that rotates the rotating plate 573 (see FIG. 48A). .

参照 Referring to FIG. 45 (B), cam 561 is a flat rectangular parallelepiped member made of synthetic resin. The rotation connecting portion 548 is formed by projecting the left end of the cam 561 rearward. The rotation connection portion 548 has a hole through which a pin 569 described later can be inserted. Further, a moving shaft 576 projecting in a substantially cylindrical shape from the front surface on the right end side of the cam 561 is formed. The moving shaft 576 is engaged with the slide groove 580 of the rotating plate 573 described above, and slides with the slide groove 580 under a use condition. To enable this sliding, the diameter of the moving shaft 576 is set to be approximately the same as or slightly shorter than the radial width of the slide groove 580.

With reference to FIG. 46, a related configuration of the rotation shielding wall 571, the support base 563, and the cam 561 will be described. FIG. 46A is an exploded perspective view of the rotation shield wall 571, the support base 563, and the cam 561 as viewed from the left rear side, and FIG. 46B is a view illustrating the rotation connection portion 568 and the cam 561 from the left front side. It is the disassembled perspective view which was seen.

Referring to FIG. 46 (A), the rotation shielding wall 571 is formed with a rotation connecting portion 568 that is inclined and protrudes from the base end of the rotation shielding wall 571. A hole through which the pin 569 can be inserted is formed in the rotation connection portion 568. Further, at the front end portions of the upper and lower sides of the rotation shielding wall 571, a rotation connection portion 564 projecting in a substantially columnar shape is formed. The rotation connecting portion 564 is inserted into a cylindrical concave portion 585 formed on the inner wall of the frame portion 583. With this configuration, the rotation shielding wall 571 is provided on the support base 563 in a rotatable state.

貫通 A through hole 586 is formed by penetrating the support base 563 in a rectangular shape. The turning connection portion 568 of the turning shielding wall 571 is inserted into the through hole 586 from behind. The rotation connecting portion 548 of the cam 561 is also inserted into the through hole 586 from the front. A pin 569 is inserted into a hole of the rotation connection portion 568 of the rotation shielding wall 571 and a hole of the rotation connection portion 548 of the cam 561. With this configuration, the rotation shielding wall 571 and the cam 561 are rotatably connected with the support base 563 interposed therebetween.

を Referring to FIG. 46 (B), a cam housing 562 is formed on the front surface of support base 563. The cam housing 562 is a rectangular area surrounded by ribs, and the above-described through hole 586 is formed inside the cam housing 562. The cam 561 is housed inside the cam housing 562 and slides. The direction in which the cam 561 slides inside the cam accommodating portion 562 is the left-right direction, in other words, the radial direction of the rotating plate 573 shown in FIG.

With the above configuration, the drive shaft 576 slides in the slide groove 580 by driving the drive motor 574 to rotate the rotary plate 573. As a result, the cam 561 slides in the cam housing 562. By sliding the cam 561, the rotation blocking wall 571 can be rotated around the pin 569. Specifically, when the cam 561 is slid to the peripheral edge side of the rotating plate 573, the rotation blocking wall 571 rotates so as to be in an upright state with the rotation connecting portion 564 as a rotation center. The wall 571 is orthogonal to the main surface of the support base 563. On the other hand, when the cam 561 is slid to the center side of the rotation plate 573, the rotation shielding wall 571 rotates about the rotation connection portion 564 so as to be in a lying state, and the rotation shielding wall 571 is supported. The state is substantially parallel to the main surface of the base 563.

Therefore, if the slide groove 580 is formed on the peripheral edge side of the rotating plate 573, the rotation shielding wall 571 can be closed. Conversely, if the slide groove 580 is formed on the center side of the rotating plate 573, the rotation blocking wall 571 can be opened. If the shape of the slide groove 580 is selected using this principle, the open / closed state of the rotation shielding wall 571 can be set arbitrarily. Thus, the rotation blocking wall 571 can be fully opened or fully closed without employing a complicated configuration.

FIG. 47A is a diagram showing the turning shield wall 5711 and the like of the shielding device 570 as viewed from the rear. The shielding device 570 has a rotating shielding wall 5711 or a rotating shielding wall 5714 as the rotating shielding wall 571 described above. The rotation shielding wall 5711 to the rotation shielding wall 5714 have a rectangular shape having a long side substantially parallel to the tangential direction of the rotation plate 573 described above. Further, the rotation shielding wall 5711 to the rotation shielding wall 5714 are rotatably attached to a peripheral portion of the support base 563 shown in FIG.

基 The base end of the rotation shielding wall 5711 is rotatably connected to a cam 5611 on which a moving shaft 5761 is formed. Similarly, a radially inner end of the rotary shielding wall 5712 is rotatably connected to a cam 5612 on which a moving shaft 5762 is formed. A radially inner end of the rotation blocking wall 5713 is rotatably connected to a cam 5613 on which a moving shaft 5763 is formed. Further, a radially inner end portion of the rotation shielding wall 5714 is rotatably connected to a cam 5614 on which a moving shaft 5754 is formed.

Here, the direction in which the cam 5611 slides is orthogonal to the longitudinal direction of the rotation shielding wall 5711. By doing so, the distance that the cam 5611 should slide when opening and closing the rotation blocking wall 5711 can be shortened. Such a configuration is the same for the other rotation shielding walls 5712 and the like.

Referring to FIG. 47 (B), rotating plate 573 is a steel plate or a synthetic resin plate molded in a substantially disk shape, and has a slide groove 580 for controlling the opening / closing operation of the above-described rotation shielding wall 5711 and the like. Is formed.

A gear groove 549 is formed in most of the periphery of the rotating plate 573, and the gear 30 and the gear groove 549, which will be described later with reference to FIG. The rotation plate 573 is rotated by the torque of the drive motor 574 shown in FIG. Further, the gear groove 549 may be formed over the entire circumference of the rotating plate 573, but here, the gear groove 549 is not formed on a part of the outer circumference of the rotating plate 573. That is, the gear groove 549 has both ends. Since the gear groove 549 has an end, the gear 30 described later rotates to the end of the gear groove 549, so that the position of the rotating plate 573 in the rotation direction can be easily detected.

The slide groove 580 is formed in a substantially annular shape near the outer peripheral edge of the rotating plate 573. Further, when the rotating plate 573 is viewed from the rear, the shape of the slide groove 580 is not a perfect circle but a meandering shape meandering along the circumferential direction of the rotating plate 573. More specifically, the slide groove 580 is composed of

slide grooves

5801, 5802, 5803, 5804, 5805, 5806, 5807, 5808, 58010, 58011 and 58012 along the clockwise direction. The slide groove 5801 is curved outward in the radial direction along the clockwise direction. The slide groove 5802 extends substantially parallel to the circumferential direction. The slide groove 5803 is curved inward in the radial direction along the clockwise direction. The slide groove 5804 is curved radially outward along the clockwise direction. The slide groove 5805 is curved radially inward along the clockwise direction. The slide groove 5806 is curved outward in the radial direction along the clockwise direction. The slide groove 5807 is curved inward in the radial direction along the clockwise direction. The slide groove 5808 is curved radially outward along the clockwise direction. The slide groove 5809 is curved inward in the radial direction along the clockwise direction. The slide groove 58010 is curved radially outward in a clockwise direction. The slide groove 58011 extends substantially parallel to the circumferential direction. The slide groove 58012 is curved inward in the radial direction along the clockwise direction.

変化 In the slide groove 580, a change point at which the curved shape of the groove changes is set. Specifically, a change point 5812 is set between the slide groove 5801 and the slide groove 5802, and a change point 5813 is set between the slide groove 5802 and the slide groove 5803. A change point 5814 is set between the slide groove 5803 and the slide groove 5804, and a change point 5815 is set between the slide groove 5804 and the slide groove 5805. A change point 5816 is set between the slide groove 5805 and the slide groove 5806, and a change point 5817 is set between the slide groove 5806 and the slide groove 5807. Further, a change point 5818 is set between the slide groove 5807 and the slide groove 5808, and a change point 5819 is set between the slide groove 5808 and the slide groove 5809. Further, a change point 58110 is set between the slide groove 5809 and the slide groove 58010, and a change point 58111 is set between the slide groove 58010 and the slide groove 58011. Further, a change point 58112 is set between the slide groove 58011 and the slide groove 58012, and a change point 5811 is set between the slide groove 58012 and the slide groove 5801.

The change point 5812, the change point 5813, the change point 5815, the change point 5817, the change point 5819, the change point 58111, and the change point 5812 described above are arranged radially outside the rotating plate 573. On the other hand, the changing point 5811, the changing point 5814, the changing point 5816, the changing point 5818, and the changing point 58110 are arranged radially inside the rotating plate 573.

FIG. 48 shows the configuration of the shielding device 570 in the fully closed state. 48A is a view of the shielding device 570 in the fully closed state as viewed from the rear, and FIG. 48B is a view of the rotating plate 573 and the like in the fully closed state as viewed from the rear, and FIG. Is a cutaway perspective view of the shielding device 570 in a fully closed state.

参照 Referring to FIG. 48 (A), shielding device 570 prevents air from flowing out of blower 47 to the outside in the fully closed state. That is, in the fully closed state, all the shielding devices 570, that is, the rotary shielding walls 5711 to 5714 are in the upright state. Therefore, the communication with the air path for supplying cool air is shut off, and no cool air is supplied to the freezing chamber 17. Further, even in the defrosting step of defrosting the cooler 45 shown in FIG. 1, warm air does not flow from the cooling chamber 26 into the refrigeration chamber 15 and the freezing chamber 17 because the shielding device 570 is in the fully closed state.

Referring to FIG. 48 (B), when closing shield device 570 in the fully closed state, first, drive motor 574 shown in FIG. 48 (A) drives rotating plate 573 through gear 30 to rotate. Let it. Here, by rotating the rotating plate 573, the moving shaft 5761 and the like are slid in the slide groove 580 and moved outward in the radial direction. Specifically, the moving shaft 5761 is arranged at the changing point 5813 of the slide groove 580, and the moving shaft 5762 is arranged at the changing point 5815 of the slide groove 580. Further, the moving shaft 5763 is arranged at the changing point 5817 of the slide groove 580, and the moving shaft 5764 is arranged at the changing point 5819 of the slide groove 580.

を Referring to FIG. 48 (C), as a result, cam 5611 moves radially outward. The rotation shielding wall 5711 rotatably connected to the cam 5611 rotates around the rotation connection portion 568 as a rotation center, and rises substantially at right angles to the main surface of the support base 563. It becomes. As a result, the opening of the frame portion 583 is closed by the rotation shielding wall 5711, and the air path is shielded. Such a configuration is the same for the other rotation shielding walls 5712 and the like.

FIG. 49 shows the configuration of the shielding device 570 in the fully opened state. FIG. 49 (A) is a view of the shielding device 570 in the fully opened state as viewed from the rear, FIG. 49 (B) is a view of the rotating plate 573 and the like in the fully opened state as viewed from the rear, and FIG. 49 (C) is a fully opened state. It is a cutting | disconnection perspective view of the shielding apparatus 570 in a state.

Referring to FIG. 49 (A), shield device 570 does not hinder the flow of air from blower 47 to the outside when fully opened. In the fully opened state, all the rotation shielding walls 5711 and the like are open toward the periphery. That is, in the fully opened state, the cool air blown from the blower 47 by the shield device 570 is blown to the refrigerator compartment 15 and the freezer compartment 17 without being interfered by the rotating shield wall 571.

Referring to FIG. 49 (B), when the shielding device 570 is fully opened, first, the drive motor 574 shown in FIG. 48 (A) is driven to rotate the rotary plate 573 via the gear 30. . Here, by rotating the rotating plate 573, the moving shaft 5761 and the like are slid in the slide groove 580, and move inward in the radial direction. Specifically, moving shaft 5761 is arranged at a changing point 5814 of slide groove 580, and moving shaft 5762 is arranged at a changing point 5816 of slide groove 580. The moving shaft 5763 is arranged at a changing point 5818 of the slide groove 580, and the moving shaft 5766 is arranged at a changing point 58110 of the slide groove 580.

参照 Referring to FIG. 49 (C), as a result, cam 5611 moves radially inward. The rotation shielding wall 5711 rotatably connected to the cam 5611 rotates around the rotation connection portion 568 as a rotation center, and falls down substantially in parallel with the main surface of the support base 563. It becomes. As a result, the opening of the frame-shaped portion 583 is not closed by the rotation shielding wall 5711, so that the flow path resistance of the air path can be reduced and the amount of air blown by the blower 47 can be increased. Such a configuration is the same for the other rotation shielding walls 5712 and the like.

In the present embodiment, with reference to FIG. 45, the opening and closing operation of the rotation shielding wall 571 is performed by the rotation of the rotating plate 573, so that the thickness of the shielding device 570 is reduced as compared with the background art described above. can do. Therefore, referring to FIG. 2, it is possible to increase the volume of freezing room 17 formed in front of shielding device 570.

Further, according to the present embodiment, as shown in FIG. 47B, a slide groove 580 is formed in the shielding device 570 in a substantially annular shape, and a plurality of moving

shafts

5762 or 5764 are engaged with the slide groove 580. Have been combined. Then, by rotating the rotating plate 573, the moving shaft 5762 or the moving shaft 5774 slides in the slide groove 580, and slides in the radial direction of the rotating plate 573. When the moving shaft 5762 or the moving shaft 5754 slides, the cam 5611 or the cam 5614 also slides, and as a result, the turning shielding wall 5711 or the turning shielding wall 5714 is opened and closed.

Therefore, since the plurality of moving shafts 5761 and / or the moving shaft 5764 engage with and slide in one slide groove 580, the distance of the sliding groove 580 to which the moving shaft 5761 and the moving shaft 5768 can slide can be increased. . Therefore, the slide groove 580 can be smoothly bent along the circumferential direction, and the pressure generated when the moving shaft 5761 or the moving shaft 5764 slides on the slide groove 580 is reduced, and the opening and closing operation of the rotary shielding wall 5711 is reduced. Can be performed smoothly.

Furthermore, the sliding range of the slide groove 580 is overlapped by the plurality of cams 5611 and the like. Specifically, referring to FIG. 50, a first sliding range in which moving shaft 5761 of cam 5611 (first cam) slides in slide groove 580, and a movement of cam 5612 (second cam). The second sliding range in which the shaft 5762 slides in the sliding groove 580 overlaps in the circumferential direction. Therefore, substantially the entirety of the slide groove 580 is the first sliding range and the second sliding range. Therefore, substantially the entire slide groove 580 can be shared by the plurality of cams 5611 and the like, and the configuration of the shielding device 570 can be simplified.

から The following inventions can be understood from the fifth embodiment.

The present invention relates to a shielding device that closes an air passage through which cool air is blown inside a refrigerator, and a plurality of rotating shielding walls that surround the blower from a radial outside, and a shielding wall driving mechanism that drives the rotating shielding wall. The shielding wall driving mechanism comprises: a rotating plate having a sliding groove formed in a circumferential direction; and a moving shaft engaging with the sliding groove formed to rotate on the rotating shielding wall. It has a plurality of cams that can be connected to each other and a motor that rotates the rotating plate, and the moving shafts of the plurality of cams are engaged with one slide groove. Thus, according to the shielding device of the present invention, the rotary shielding wall is opened and closed by the cam that slides by the rotation of the rotating plate, so that the shielding device becomes thin and a large internal volume of the storage room can be secured. Further, the meandering shape of the slide groove can be made smooth by engaging the moving shafts of the plurality of cams with one slide groove. Therefore, the sliding operation between the slide groove and the moving shaft and the turning operation of the turning shielding wall can be performed smoothly. Further, the number of slide grooves can be reduced, and the configuration of the shielding device can be simplified.

Further, in the shielding device of the present invention, the cam has a first cam and a second cam, a first sliding range in which the first cam slides in the slide groove, and the second cam. Is overlapped with a second sliding range in which the sliding groove slides. Thus, according to the shielding device of the present invention, since the first sliding range and the second sliding range overlap, a large sliding range of the moving shaft of each cam can be ensured, and the sliding groove and the moving shaft can be secured. , And the turning operation of the turning shielding wall can be performed more smoothly.

遮蔽 Further, in the shielding device of the present invention, the slide groove is formed in an annular shape. Thus, according to the shielding device of the present invention, since the slide groove is formed in an annular shape, the configuration of the shielding wall driving mechanism can be simplified.

遮蔽 In the shielding device of the present invention, the slide groove is formed in an incomplete annular shape. Thus, according to the shielding device of the present invention, the initial position of the rotating plate can be easily detected by sliding the engaging portion of the cam to the end of the slide groove.

In the shielding device of the present invention, the slide groove has a first slide groove and a second slide groove formed inside the first slide groove in a radial direction. Thus, according to the shielding device of the present invention, the rotation shielding wall which is rotated by the cam in which the engagement portion engages with the first slide groove, and the rotation is rotated by the cam in which the engagement portion engages with the second slide groove. The control system can be made different from that of another moving rotary shielding wall, and the control method of the rotary shielding wall can be diversified.

In the shielding device according to the aspect of the invention, the motor may rotate the rotating plate via a gear that meshes with a gear groove formed around the rotating plate. The gear groove is not formed. Thus, according to the shielding device of the present invention, the position of the rotary plate in the rotation direction can be easily detected by rotating the rotary plate to the end of the gear groove.

Further, in the refrigerator of the present invention, a cooler of a refrigeration cycle for cooling air supplied to the storage room via the air passage, and a blower outlet provided with the cooler and connected to the storage room are formed. A cooling chamber, the blower that blows the air supplied from the blow port toward the storage chamber, and the shielding device that at least partially blocks the air path. . Thus, according to the refrigerator of the present invention, by providing the thin concealed wall blower having a plurality of rotating shielding walls surrounding the blower from the outside in the radial direction, the volume occupied by the shielding device is reduced, and the storage space of the storage room is reduced. The internal volume can be increased. Further, the opening and closing operation of the rotation shielding wall can smoothly perform the air supply switching operation of each storage room.

DESCRIPTION OF SYMBOLS 10 Refrigerator 11 Insulated box 12 Outer box 13 Inner box 14 Insulation material 15 Cold room
17 Freezer compartment 18 Upper freezer compartment 19 Lower freezer compartment 20 Vegetable compartment 21 Insulated door 22 Damper 23 Insulated door 24 Insulated door 25 Insulated door 26 Cooling room 27 Vent 28 Return port 29 Refrigerator supply air passage 30 Gear 31 Refrigerator supply air Road 32 rib
33 air outlet 34 air outlet 37 vegetable room return air path 38 return port 39 return port 42 heat insulating partition wall 43 heat insulating partition wall 44 compressor 45 cooler 46 defrost heater 47 blower 48 rotating connection part 49 gear groove 50 air path section Wall 51 Refrigerator compartment supply air passage 52 Upper freezer compartment supply air passage 53 Lower refrigeration compartment supply air passage 54 Rotating connection portion 55 Pin 56 Air passage partition wall 57 Cover member 58 Side wall portion 59 Opening portion 60 Shielding

wall drive mechanisms

61, 611 , 612, 613, 614, 615, 616 Cam 62 Cam storage section 63 Support base 64 Rotating connecting section 65 Partition body 66 Partition body 67 Front cover 68 Rotating connecting section 69 Pin 70

Shielding device

71, 711, 712, 713 714, 715, 716 Rotating shielding wall 73 Rotating plate 74 Drive motor 75 Rotating

shaft

76, 761, 762, 763, 764, 765, 766 Moving shaft 7 the gear portion 79 rotating shaft slide groove
80, 801, 802, 803, 804, 805, 806 Moving

shaft slide grooves

8011, 8012, 8013

grooves

8021, 8022, 8023, 8024, 8025, 8026

grooves

8031, 8032, 8033, 8034

grooves

8041, 8042, 8043, 8044. Grooves 8051, 8052, 8053, 8054 Grooves 8061, 8062, 8063, 8064, 8065, 8066 Grooves 235 Cover plate 236 Opening 254 Drive shaft 258 Projection 259 Opening 260 Shielding wall drive mechanism 263 Support base 264 Rotating connection 270 Shielding device 271, 2711, 2712, 2713, 2714 Rotating shielding wall 274 Drive motors 2811, 2812, 2813, 2814, 2815, 2816, 2817 Gear 282 Openings 283, 284 Ear fixing portion 285 Groove 286 Wire rotating body 287 Blower mounting portion 288 Wire cover 289 Drive motor 290 Shielding device 291 Rotating shielding wall 292 Wire 2921, 2922 Wire end 293 Rotating connecting portion 294 Blower 295 Wire insertion portion 296 Support base 297 Lid part 298 Rotating connecting part 299 Lid part 348 Rotating connecting part 355 Pin 358 Side wall parts 360, 3601, 3602 Shielding wall driving mechanism 361, 3611, 3612, 3613, 3614, 3615 Cam 363 Support base 364, 368 Rotating connection Portion 369 Pin 370 Shielding device 371, 3711, 3712, 3713, 3714, 3715 Rotating shielding wall 373, 3731, 3732, 3733, 3734, 3735 Rotating plate 374, 3741, 3742, 3743, 3744, 3745 drive 376,3761,3762,3763,3764,3765 moving shaft 380,3801,3802,3803,3804,3805 moving shaft slide groove 381 solenoid 382 contact part 3851,3852 winding part 3861,3862,3863,3864 wire 387 Movable part 430 Gear 441 Frame part 448, 454 rotation connection part 455 Pin 458 Side wall part 460 Shielding wall drive mechanism 461, 4611, 4612, 4613, 4614, 4615 Cam 462 Cam storage part 463 Support base 464, 468 rotation connection Portion 469 Pin 470 Shielding device 471, 4711, 4712, 4713, 4714, 4715 Rotating shielding wall 473 Rotating plate 474 Drive motor 475 Rotating shaft 476, 4761, 4762, 4763, 4764, 4765 Moving shaft 477 Gear part 479 Rotation axis slide groove 480, 4801, 4802, 4804, 4805 Moving axis slide groove 48011, 48012, 48013, 48021, 48022, 48023, 48024, 48025, 48026, 48027, 48028, 48029, 48041, 48042, 48043, 48044, 48051, 48052, 48053, 48054, 48055, 48056 Groove part 548 Rotating connection part 549 Gear groove 560 Shielding wall drive mechanism 561, 5611, 5612, 5613, 5614, 5615, 5616 Cam 562 Cam housing part 563 Support base 564, 568 rotating connection portion 569 pin 570 shielding device 571, 5711, 5712, 5713, 5714, 5715 rotating shielding wall 573 rotating plate 574 drive motor 76, 5761, 5762, 5763, 5764, 5765 Moving shafts 580, 5801, 5802, 5803, 5804, 5805, 5806, 5807, 5808, 5809, 58010, 58011, 58012, 58013, 58014 Slide grooves 5811, 5812, 5813, 5814, 5815, 5816, 5817, 5818, 5819, 58110, 58111, 58112 Change point 583 Frame portion 585 Depressed portion 586 Through hole 1100 Refrigerator room 1102 Freezer room 1102 Freezer room 1103 Vegetable room 1104 Cooling room 1105 Partition wall 1106 Opening 1107 Blower fan 1108 Cooler 1109 Airway 1110 Blower cover 1111 Recess 1113 Opening 1114 Damper

Claims

A shielding device that blocks an air passage through which cool air is blown inside the refrigerator,
A rotating shielding wall surrounding the blower from the radial outside,
A shielding wall driving mechanism for driving the rotating shielding wall,
The rotation shielding wall is disposed in the air path,
The shielding device, wherein the shielding wall driving mechanism is provided in a region outside the air path.
The shielding wall drive mechanism,
A disk-shaped rotating plate on which a moving shaft slide groove is formed,
A cam formed with a moving shaft engaged with the moving shaft slide groove, and rotatably connected to the rotation shielding wall;
A drive motor for rotating the rotating plate,
2. The shielding device according to claim 1, wherein the cam opens and closes the rotation shielding wall by the moving shaft sliding in the moving shaft slide groove. 3.
The shielding device according to claim 2, wherein the moving shafts of the plurality of cams engage with one moving shaft slide groove.
A shielding device that blocks an air passage through which cool air is blown inside the refrigerator,
A plurality of rotating shielding walls are arranged side by side to surround the blower from the radial outside, and open and close the air path by rotating.
A shielding wall driving mechanism for driving the rotation shielding wall,
The shielding device, wherein the shielding wall driving mechanism includes a driving source, and a power transmission mechanism that transmits power of the driving source to the rotation shielding wall.
A shielding device that blocks an air passage through which cool air is blown inside the refrigerator,
A plurality of rotating shielding walls surrounding the blower from the radial outside,
A shielding wall driving mechanism for driving the rotation shielding wall,
A shielding device, wherein a plurality of the shielding wall driving mechanisms are provided.
A refrigeration cycle cooler that cools air supplied to the storage room via the air path,
A cooling room in which the cooler is provided and an air outlet connected to the storage room is formed;
The blower blows the air supplied from the blower toward the storage room,
A refrigerator, comprising: the shielding device according to any one of claims 1 to 5, which at least partially blocks the air passage.