JP7058861B2 - Cloaking device and refrigerator with it - Google Patents

Description

The present invention relates to a refrigerator for cooling and storing food or the like in a storage chamber, and more particularly to a refrigerator provided with a shielding device for appropriately blocking an air passage from the cooling chamber to the storage chamber.

Conventionally, a refrigerator as described in Patent Document 1 has been known in which a plurality of storage chambers are appropriately cooled by one cooler.

FIG. 17 schematically shows the refrigerator 100 described in this document. In the refrigerator 100 shown in this figure, a refrigerating chamber 101, a freezing chamber 102, and a vegetable compartment 103 are formed from above. A cooling chamber 104 in which the cooler 108 is housed is formed on the back side of the freezing chamber 102, and cold air is supplied to each storage chamber on the partition wall 105 that separates the cooling chamber 104 and the freezing chamber 102. The opening 106 for the purpose is formed. Further, a blower fan 107 for blowing cold air is disposed in the opening 106, and a blower cover 110 for covering the blower fan 107 is arranged on the freezing chamber 102 side. A damper 114 is arranged in the middle of the air passage 109 through which the cold air supplied to the refrigerating chamber 101 flows.

The blower cover 110 described above will be described in detail with reference to FIG. The blower cover 110 is formed with a recess 111 having a substantially quadrangular shape, and an opening 113 is formed by partially cutting out the upper portion of the recess 111. Here, in the situation where the blower cover 110 covers the blower fan 107 described above, the opening 113 of the blower cover 110 communicates with the air passage 109 on the refrigerator main body side.

The refrigerator 100 having the above configuration operates as follows. First, when cooling both the refrigerating chamber 101 and the freezing chamber 102, the blower cover 110 is separated from the blower fan 107, the damper 114 is opened, and the blower fan 107 is rotated in this state. Then, a part of the cold air cooled by the cooler 108 inside the cooling chamber 104 is blown to the freezing chamber 102 by the blowing wind of the blowing fan 107. Further, the other part of the cold air is blown to the refrigerating chamber 101 via the air passage 109, the damper 114, and the air passage 109. As a result, both the freezing chamber 102 and the refrigerating chamber 101 are cooled.

On the other hand, when cooling only the refrigerating chamber 101, the blower fan 107 is covered with the blower cover 110, the damper 114 is opened, and the cold air cooled by the cooler 108 is blown by the blower fan 107 in this state. When the blower cover 110 is closed, the opening 113 formed in the upper part of the blower cover 110 communicates with the air passage 109. Therefore, the cold air blown by the blower fan 107 is supplied to the refrigerating chamber 101 via the above-mentioned opening 113, the damper 114, and the air passage 109.

As described above, by using the blower cover 110 having the opening 113 formed therein, it is possible to appropriately cool a plurality of storage chambers with one cooler 108.

Japanese Unexamined Patent Publication No. 2013-2664

However, the blower cover 110 having the above configuration closes the opening 106 of the cooling chamber 104 by moving backward, and releases the opening 106 of the cooling chamber 104 by moving forward. Therefore, the blower cover 110 requires a space for performing the opening / closing operation along the front-rear direction. Therefore, a large space is required for the blower cover 110 to open and close inside the refrigerator 100. As a result, there is a problem that the internal volume of the freezing chamber 102 formed in front of the blower cover 110 is compressed, and the amount of stored items that can be stored in the freezing chamber 102 is limited.

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 and a refrigerator capable of reducing the occupied volume.

The present invention is a shielding device that closes an air passage inside a refrigerator, and includes a plurality of shielding walls that surround a blower rotated by a motor from the outside in the radial direction, and a rotating plate adjacent to the shielding wall and rotatable. Then, the shielding wall is displaced outward in the radial direction of the blower to open the air passage, and the shielding wall is displaced inward in the radial direction of the blower. The air passage is closed , the shielding wall has a rotation axis that serves as a center of rotation, and a moving axis that protrudes, and the rotating plate is a moving axis slide that is formed to meander along the direction of rotation. It has a groove, and is characterized in that the shielding wall opens and closes by sliding the moving shaft of the shielding wall with the moving shaft slide groove of the rotating plate as the rotating plate rotates. do.

The present invention is a shielding device that blocks an air passage inside a refrigerator, and includes a plurality of shielding walls that surround a blower rotated by a motor from the outside in the radial direction, and the shielding wall faces outward in the radial direction of the blower. The air passage is opened, and the shielding wall is displaced inward in the radial direction of the blower, so that the air passage is closed, and the shielding wall is on one end side thereof. A rotation shield wall that realizes the open state by rotating toward the outside in the radial direction with the rotation axis formed in the above as the center of rotation, and a rotary plate that is adjacent to the rotation shield wall and is rotatable. The rotating plate includes a rotating shaft slide groove on which the rotating shaft of the rotating shielding wall slides, and a moving shaft slide groove on which the moving axis of the rotating shielding wall is slidably arranged. The rotating shaft slide groove is formed substantially parallel to the circumferential direction, and a part of the moving shaft slide groove is formed so as to be inclined with respect to the circumferential direction.

The present invention is a shielding device that closes an air passage inside a refrigerator, and includes a plurality of shielding walls that surround a blower rotated by a motor from the outside in the radial direction, and a rotating plate adjacent to the shielding wall and rotatable. Then, the shielding wall is displaced outward in the radial direction of the blower to open the air passage, and the shielding wall is displaced inward in the radial direction of the blower. The air passage is closed , the shielding wall has a rotation axis that serves as a center of rotation, and a moving axis that protrudes, and the rotating plate is a moving axis slide that is formed to meander along the direction of rotation. It has a groove, and is characterized in that the shielding wall opens and closes by sliding the moving shaft of the shielding wall with the moving shaft slide groove of the rotating plate as the rotating plate rotates. do. Therefore, the air passage can be easily opened and closed.

The present invention is a shielding device that blocks an air passage inside a refrigerator, and includes a plurality of shielding walls that surround a blower rotated by a motor from the outside in the radial direction, and the shielding wall faces outward in the radial direction of the blower. The air passage is opened, and the shielding wall is displaced inward in the radial direction of the blower, so that the air passage is closed, and the shielding wall is on one end side thereof. A rotation shield wall that realizes the open state by rotating toward the outside in the radial direction with the rotation axis formed in the above as the center of rotation, and a rotary plate that is adjacent to the rotation shield wall and is rotatable. The rotating plate includes a rotating shaft slide groove on which the rotating shaft of the rotating shielding wall slides, and a moving shaft slide groove on which the moving axis of the rotating shielding wall is slidably arranged. The rotating shaft slide groove is formed substantially parallel to the circumferential direction, and a part of the moving shaft slide groove is formed so as to be inclined with respect to the circumferential direction. Therefore, a part of the moving shaft slide groove is formed so as to be inclined with respect to the circumferential direction, and when the rotating plate is rotated, the moving shaft slides on the inclined moving shaft slide groove to rotate. The shielding wall can be rotated at any angle.

It is a front view which shows the appearance of the refrigerator which concerns on embodiment of this invention. It is a side sectional view which shows the internal structure of the refrigerator which concerns on embodiment of this invention. It is an enlarged side sectional view which shows the structure near the cooling chamber of the refrigerator which concerns on embodiment of this invention. It is a figure which shows the structure which the shielding device adopted in the refrigerator which concerns on embodiment of this invention is assembled, (A) is a perspective view, (B) is a sectional view, (C) is an air passage structure. It is a perspective view which shows. It is a figure which shows the shielding device which concerns on embodiment of this invention, (A) is a perspective view, (B) is an exploded perspective view. It is a figure which shows the shielding device which concerns on embodiment of this invention, (A) is the figure which shows the rotation shielding wall, (B) is the figure which shows the rotating plate. It is a figure which shows the shielding device which concerns on embodiment of this invention, (A) is a figure which shows the rotating plate in a fully closed state, (B) is a figure which shows the rotating shielding wall in that state. It is a perspective view which shows the state of the air passage when the shielding device which concerns on embodiment of this invention is a fully closed state. It is a figure which shows the shielding device which concerns on embodiment of this invention, (A) is the figure which shows the rotating plate in a fully open state, (B) is a figure which shows the rotating shielding wall in that state. It is a perspective view which shows the state of the air passage when the shielding device which concerns on embodiment of this invention is a fully open state. It is a figure which shows the shielding device which concerns on embodiment of this invention, (A) is the figure which shows the rotating plate in the state which supplies cold air only to a refrigerating room, (B) is the figure which shows the rotating shielding wall of the state. It is a figure which shows. It is a perspective view which shows the state of the air passage in the case which the shielding device which concerns on embodiment of this invention is a state which supplies cold air only to a refrigerating room. It is a figure which shows the shielding device which concerns on embodiment of this invention, (A) is the figure which shows the rotating plate in the state which supplies cold air only to the upper freezing chamber, (B) is the figure which shows the rotating shielding wall of the state. It is a figure which shows. It is a perspective view which shows the state of the air passage in the case where the shielding device which concerns on embodiment of this invention supplies cold air only to the upper freezing chamber. It is a figure which shows the shielding device which concerns on embodiment of this invention, (A) is the figure which shows the rotating plate in the state which supplies cold air only to the lower freezing chamber, (B) is the figure which shows the rotating shielding wall in that state. It is a figure which shows. It is a perspective view which shows the state of the air passage in the case which the shielding device which concerns on embodiment of this invention is a state which supplies cold air only to a lower freezing chamber. It is an enlarged side view which shows the refrigerator which concerns on the background technique. It is a perspective view which shows the blower cover adopted in the refrigerator which concerns on the background technique.

Hereinafter, 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 designated by the same reference numerals in principle, and repeated description thereof will be omitted. Further, in the following description, each direction of up, down, front, back, left and right is appropriately used, and the left and right refer to the left and right when the refrigerator 10 is viewed from the front.

FIG. 1 is a front external view showing a schematic structure of the refrigerator 10 of the present embodiment. As shown in FIG. 1, the refrigerator 10 is provided with a heat insulating box 11 as a main body, and a storage chamber for storing food and the like is formed inside the heat insulating box 11. The uppermost storage room is the refrigerating room 15, the lower left side is the ice making room 16, the right side is the upper freezing room 18, the lower part is the lower freezing room 19, and the lowermost part is the vegetable room 20. The ice making chamber 16, the upper freezing chamber 18, and the lower freezing chamber 19 are all storage chambers in the freezing temperature range, and these may be collectively referred to as the freezing chamber 17 in the following description. Further, in the following description, the upper freezing chamber 18 and the ice making chamber 16 may be referred to as the upper freezing chamber 18 and the like.

The front surface of the heat insulating box 11 is open, and the heat insulating door 21 and the like are provided in the openings corresponding to the respective storage chambers so as to be openable and closable. The heat insulating door 21 divides the front surface of the refrigerating chamber 15 in the left-right direction and closes the heat insulating door 21, and the outer upper and lower end portions of the heat insulating door 21 in the width direction are rotatably attached to the heat insulating box body 11. Further, the heat insulating doors 22, 23, 24, and 25 are integrally combined with the storage container, and are supported by the heat insulating box 11 so as to be freely pulled out in front of the refrigerator 10.

FIG. 2 is a side sectional view showing a schematic structure of the refrigerator 10. As shown in FIG. 2, the heat insulating box 11 which is the main body of the refrigerator 10 is arranged with a steel plate outer box 12 having an open front surface and a gap in the outer box 12, and the front surface is opened. It is composed of an inner box 13 made of synthetic resin. A heat insulating material 14 made of foamed polyurethane is filled and foamed in the gap between the outer box 12 and the inner box 13. The heat insulating doors 21 to 25 described above also adopt the same heat insulating structure as the heat insulating box 11.

The refrigerating chamber 15 and the freezing chamber 17 located below the refrigerating chamber 15 are partitioned by a heat insulating partition wall 42. The ice making chamber 16 inside the freezing chamber 17 and the upper freezing chamber 18 are partitioned by a partition wall (not shown here). Further, cold air, which is cooled air, is freely communicated between the ice making chamber 16 and the upper freezing chamber 18 and the lower freezing chamber 19 provided below the ice making chamber 16. The freezing chamber 17 and the vegetable compartment 20 are separated by a heat insulating partition wall 43.

On the back surface of the refrigerating chamber 15, a partition body 65 made of synthetic resin is partitioned, and a refrigerating chamber supply air passage 29 as a supply air passage for supplying cold air to the refrigerating chamber 15 is formed. The air outlet 33 for flowing cold air to the refrigerating chamber 15 is formed in the refrigerating chamber supply air passage 29.

A freezing chamber supply air passage 31 is formed on the back side of the freezing chamber 17 to allow the cold air cooled by the cooler 45 to flow to the freezing chamber 17. A cooling chamber 26 is formed further behind the freezing chamber supply air passage 31, and a cooler 45, which is an evaporator for cooling the air circulating in the refrigerator, is arranged inside the cooling chamber 26. .. The freezing chamber supply air passage 31 is a space surrounded from the front-rear direction by the front cover 67 and the partition body 66.

The cooler 45 is connected to a compressor 44, a radiator (not shown), and a capillary tube which is an expansion means (not shown) via a refrigerant pipe, and constitutes a steam compression type refrigeration cycle circuit.

FIG. 3 is a side sectional view showing a structure in the vicinity of 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 chamber supply air passage 31. The cooling chamber 26 and the freezing chamber 17 are partitioned by a partition body 66 made of synthetic resin.

The freezing chamber supply air passage 31 formed in front of the cooling chamber 26 is a space formed between the cooling chamber 26 and the synthetic resin front cover 67 assembled in front of the cooling chamber 26, and is cooled by the cooler 45. It becomes an air passage through which cold air flows. The front cover 67 is formed with an outlet 34, which is an opening for blowing cold air into the freezing chamber 17.

A return port 38 for returning air from the freezing chamber 17 to the cooling chamber 26 is formed on the lower back surface of the lower freezing chamber 19. Below the cooling chamber 26, a return port 28 is formed which is connected to the return port 38 and sucks the return cold air from each storage chamber into the inside of the cooling chamber 26. Cold air returning via the return port 39 (FIG. 2) of the vegetable compartment 20 and the vegetable compartment return air passage 37 also flows into the return port 28.

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

An air outlet 27, which is an opening connected to each storage chamber, is formed in the upper part of the cooling chamber 26. The air outlet 27 is an opening through which the cold air cooled by the cooler 45 flows, and communicates the cooling chamber 26 with the refrigerating chamber supply air passage 29 and the freezing chamber supply air passage 31. The blower port 27 is provided with a blower 47 that blows cold air from the front toward the freezing chamber 17 and the like. Further, a damper is not interposed in the refrigerating chamber supply air passage 29, and the function of the damper is carried out by the rotary shielding wall 71A of the shielding device 70 described later.

On the outside of the air outlet 27 of the cooling chamber 26, a shielding device 70 for appropriately blocking the air passage connected from the air outlet 27 is provided. The shielding device 70 is covered with a front cover 67 from the front.

With reference to FIG. 4, a configuration in which the shielding device 70 that regulates the above-mentioned air passage is assembled will be described. 4 (A) is a perspective view showing a partition body 66 to which the shielding device 70 is assembled, and FIG. 4 (B) is a cross-sectional view taken along the line BB of FIG. 4 (A). C) is a perspective view showing the air passage configuration on the back side of the partition body 66.

With reference to FIG. 4A, a blower port 27 is formed by partially opening the upper portion of the partition body 66 in a circular shape, and a blower 47 and a shielding device 70 are arranged in front of the blower port 27. It is set up. Further, the opening portion formed on the upper end side of the partition body 66 communicates with the above-mentioned refrigerating chamber supply air passage 29.

With reference to FIG. 4B, as described above, the freezing chamber supply air passage 31 is formed as a space surrounded by the partition body 66 and the front cover 67. As will be described later, the freezing chamber supply air passage 31 is divided into a plurality of air passages.

With reference to FIG. 4C, a plurality of air passages are formed by partitioning the internal space of the front cover 67. Specifically, a rib-shaped air passage partition wall 56 is formed from the rear main surface of the front cover 67 toward the rear, and the rear end of the air passage partition wall 56 abuts on the partition body 66 described above. ing. Here, the above-mentioned freezing chamber supply air passage 31 is divided into upper supply air passages 51, 52 and lower supply air passages 53, 54, 55 from above. The upper supply air passages 51 and 52 blow air to the upper freezing chamber 18, and the lower supply air passages 53, 54 and 55 blow air to the lower freezing chamber 19. An outlet 34 is formed in each supply air passage. In other words, each air passage formed here is formed so as to spread around the shielding device 70.

In this way, by dividing the above-mentioned freezing chamber supply air passage 31 into a plurality of upper supply air passages 52 and the like, the rotary shielding wall 71 of the shielding device 70 is opened and closed, and cold air is appropriately supplied to the upper supply air passage 52 and the like. Can be supplied. Therefore, the temperature inside the freezing chamber 17 can be controlled more precisely. Such matters will be described later.

Further, the refrigerating room supply air passage 29 and the like described above are formed so as to surround the shielding device 70 from the surroundings, but the individual refrigerating room supply air passages 29 and the like face one of the rotary shielding walls 71 described later. are doing. By doing so, by opening and closing the rotary shielding wall 71 of the shielding device 70, it is possible to individually communicate and shut off the refrigerating room supply air passage 29 and the like, and the shielding device 70 functions like a damper. Will have.

The configuration of the cloaking device 70 will be described with reference to FIG. FIG. 5A is a perspective view showing the shielding device 70, and FIG. 5B is an exploded perspective view of the shielding device 70.

With reference to FIG. 5A, the cloaking device 70 is a device that regulates the path of the cold air blown by the blower 47, and by opening the cloaking device 70, the cooling chamber 26 and each storage are stored. The air passage connecting to the room is communicated with the air passage, and the shielding device 70 is closed to block the air passage.

With reference to FIG. 5B, the shielding device 70 includes a rotating plate 73, a rotating shielding wall 71, a drive motor 74, and a support plate 72 from the rear side. Further, the blower 47 is arranged between the rotary plate 73 and the support plate 72. Although not shown here, the blower 47 includes, for example, a centrifugal fan such as a turbo fan and a motor for rotating the centrifugal fan, and blows air toward the outside in the radial direction.

The rotary plate 73 is a steel plate molded in a substantially disk shape, and a groove for controlling the opening / closing operation of the rotary shielding wall 71 is formed. The configuration of each groove will be described later. By rotating the rotating plate 73 with the driving force of the drive motor 74, the rotation shielding wall 71 can be opened and closed.

A plurality of rotation shielding walls 71 are arranged along the circumferential direction so as to surround the blower 47 from the surroundings. When viewed from the rear, the rotary shielding wall 71 has a shape like a blade. The rotation shielding wall 71 has a rotation shaft 75 and a movement shaft 76. The rotation shaft 75 is a shaft that becomes the center of rotation when the rotation shielding wall 71 rotates, and does not move. The support portion 77 of the support plate 72 is inserted into the rotary shaft 75, and is engaged with the rotary shaft slide groove 79 described later of the rotary plate 73. The moving shaft 76 is a protruding shaft that protrudes rearward, and is engaged with a moving shaft slide groove 80 of the rotating plate 73, which will be described later. The moving shaft 76 moves along the moving shaft slide groove 80 along the circumferential direction and the radial direction with the rotation of the rotating plate 73.

Further, the rotary plate 73 is rotated by the driving force of the drive motor 74. The rotary plate 73 and the drive motor 74 are drivenly connected by a belt, a gear, or the like (not shown here).

The support plate 72 is a plate-shaped member that installs the shielding device 70 on the main body of the refrigerator 10. A plurality of support portions 77 extending rearward from the support plate 72 in a rod shape are formed. The support portion 77 penetrates the peripheral portion of the blower 47, the rotation shaft 75 of the rotation shielding wall 71, and the rotation shaft slide groove 79 described later of the rotation plate 73. The position of each member is fixed by fastening the screw 78 to the rear end of the support portion 77.

The rotating plate 73 and the rotating shielding wall 71 included in the shielding device 70 described above will be described with reference to FIG. FIG. 6A is a plan view showing the rotation shielding wall 71, and FIG. 6B is a plan view showing the rotation plate 73. In the following description, clockwise is referred to as a forward direction and counterclockwise is referred to as a reverse direction from the viewpoint shown in FIG.

With reference to FIG. 6A, a plurality of rotation shielding walls 71A, 71B, 71C, 71D, 71E, 71F are arranged along the circumferential direction. Each rotation shielding wall 71A or the like has a rotation shaft 75A or the like and a moving shaft 76A or the like. The rotary shaft 75A or the like engages with the rotary shaft slide groove 79A or the like of the rotary plate 73 described later. It engages with the moving shaft slide groove 80 of the rotating plate 73, which will be described later, such as the moving shaft 76A.

The rotation-shielding wall 71A to the rotation-shielding wall 71F forms an annular member as a whole, and surrounds the above-mentioned blower 47 from the surroundings. The rotation-shielding wall 71A to the rotation-shielding wall 71F is displaced toward the outside in the radial direction of the blower 47 to open each of the above-mentioned air passages. On the other hand, the rotary shield wall 71A to the rotary shield wall 71F is displaced inward in the radial direction of the blower 47 to close each of the air passages.

When the rotary shield wall 71A to the rotary shield wall 71F is in the closed state shown in this figure, the supply air passage through which cold air is blown can be blocked. Further, by rotating the rotation shielding wall 71A or the like counterclockwise with the rotation shaft 75A or the like as the center of rotation, the rotation shielding wall 71A or the like can be opened and the air passage can be communicated.

With reference to FIG. 6B, the rotary plate 73 is formed with a groove along the circumferential direction. Specifically, the rotary plate 73 is formed with a rotary shaft slide groove 79A or the like for sliding the rotary shaft 75A or the like, and a moving shaft slide groove 80A or the like for sliding the moving shaft 76A or the like. The rotating shaft slide groove 79A and the like and the moving shaft slide groove 80A and the like are formed corresponding to the above-mentioned rotation shielding wall 71A and the like.

The rotary shaft slide groove 79A or the like is a groove for sliding the rotary shaft 75A or the like such as the rotary shielding wall 71A, and is formed parallel to the circumferential direction of the rotary plate 73. Further, the rotary shaft slide grooves 79A and the like have the same length as each other. Since the rotary shaft slide groove 79A and the like have such a shape, when the rotary plate 73 described later is rotated in order to open and close the rotary shield wall 71A and the like described above, the rotary shaft 75A and the like become a rotary shaft. Slide the slide groove 79A or the like.

The moving shaft slide groove 80A or the like is a groove for sliding the moving shaft 76A or the like such as the rotation shielding wall 71A, and is formed radially outside the rotating shaft slide groove 79A or the like. Further, the moving shaft slide groove 80A and the like are formed from a plurality of groove portions.

Specifically, the moving shaft slide groove 80A is formed of the groove portion 80AA, the groove portion 80AB, and the groove portion 80AC. The groove 80AA is parallel to the circumferential direction, the forward side of the groove 80AB is inclined toward the outside in the radial direction, and the groove 80AC is parallel to the circumferential direction.

The moving shaft slide groove 80B is formed of a groove portion 80BA, a groove portion 80BB, a groove portion 80BC, and a groove portion 80BD. The groove 80BA is inclined outward in the forward direction in the forward direction, the groove 80BB is inclined inward in the radial direction in the forward direction, the groove 80BC is parallel to the circumferential direction, and the groove 80BD is radial in the forward direction. It tilts toward the outside in the direction.

The moving shaft slide groove 80C is formed of a groove portion 80CA, a groove portion 80CB, and a groove portion 80CC. The groove 80CA is inclined inward in the radial direction on the forward side, the groove 80CB is parallel to the circumferential direction, and the groove 80CC is inclined outward in the radial direction on the forward side.

The moving shaft slide groove 80D is formed of a groove portion 80DA, a groove portion 80DB, and a groove portion 80DC. The groove 80DA is inclined inward in the radial direction on the forward side, the groove 80DB is parallel to the circumferential direction, and the groove 80DC is inclined outward in the radial direction on the forward side.

The moving shaft slide groove 80E is formed of a groove portion 80EA, a groove portion 80EB, and a groove portion 80EC. The groove 80EA is inclined inward in the radial direction on the forward side, the groove 80EB is parallel to the circumferential direction, and the groove 80EC is inclined outward in the radial direction on the forward side.

The moving shaft slide groove 80F is formed of a groove portion 80FA, a groove portion 80FB, a groove portion 80FC, and a groove portion 80FD. The groove 80FA is inclined outward in the forward direction in the forward direction, the groove 80FB is inclined inward in the radial direction in the forward direction, the groove 80FC is parallel to the circumferential direction, and the groove 80FD is radial in the forward direction. It tilts toward the outside in the direction.

Since the moving shaft slide groove 80A and the like have the above-mentioned configuration, when the rotating plate 73 is rotated, the rotation shielding wall 71A and the like can be opened and closed. For example, when the rotating plate 73 is rotated in the forward direction, the moving shaft 76A of the above-mentioned rotation shielding wall 71A moves along the curved moving shaft slide groove 80A, and the rotation shielding wall 71A rotates counterclockwise. It becomes an open state. Cold air can be blown toward each storage chamber from the opening in which the rotary shielding wall 71A is opened.

As described above, the moving shaft slide groove 80A to the moving shaft slide groove 80F have different shapes from each other. By doing so, the rotation shielding wall 71A or the rotation shielding wall 71F is individually displaced by the moving shaft slide groove 80A or the moving shaft slide groove 80F, and these rotation shielding walls 71A and the like perform opening / closing operations at different timings. .. This makes it possible to open and close the air passages individually.

Further, the moving shaft slide groove 80B and the moving shaft slide groove 80F have substantially the same shape in the circumferential direction. By doing so, the rotation shielding wall 71B and the rotation shielding wall 71F described above can be opened and closed to the same extent at the same timing.

Further, the moving shaft slide groove 80C, the moving shaft slide groove 80D, and the moving shaft slide groove 80E have substantially the same shape in the circumferential direction. By doing so, the above-mentioned rotation shielding wall 71C, rotation shielding wall 71D, and rotation shielding wall 71E can be opened and closed to the same extent at the same timing.

Here, taking the moving shaft slide groove 80B as an example, the groove portion 80BC is the first groove, the groove portion 80BA is the second groove portion, and the groove portion 80BB is the third groove portion.

The operation of opening and closing the rotary shielding wall 71A and the like by rotating the rotating plate 73 of the shielding device 70 described above will be described with reference to FIGS. 7 to 16. 7 and 8 show the cloaking device 70 in the fully closed state, FIGS. 9 and 10 show the cloaking device 70 in the fully open state, and FIGS. 11 and 12 show the state in which cold air is supplied only to the above-mentioned refrigerating chamber 15. The shielding device 70 is shown, FIGS. 13 and 14 show a shielding device 70 in a state where cold air is supplied only to the upper freezing chamber 18 and the like, and FIGS. 15 and 16 show cold air only to the lower freezing chamber 19 described above. The shielding device 70 in the state of doing so is shown. Each of these states can be transitioned by rotating the rotating plate 73 described above.

FIG. 7 shows the shielding device 70 in the fully closed state. FIG. 7A shows a rotating plate 73 in a fully closed state, and FIG. 7B shows a rotating shielding wall 71A and the like in that state.

With reference to FIG. 7 (A), in the fully closed state, the moving shaft 76A and the like of each rotation shielding wall 71A and the like are formed in the groove portion parallel to the circumferential direction of each moving shaft slide groove 80A and the like. Be placed. Further, the groove portions parallel to the circumferential direction, such as the slide groove 80A of each moving shaft, are arranged inward in the radial direction with respect to the other groove portions. Specifically, the moving shaft 76A is arranged in the groove 80A of the moving shaft slide groove 80A, the moving shaft 76B is arranged in the groove 80BC of the moving shaft slide groove 80B, and the moving shaft 76C is arranged in the groove 80CB of the moving shaft slide groove 80C. Be placed. Further, the moving shaft 76D is arranged in the groove 80DB of the moving shaft slide groove 80D, the moving shaft 76E is arranged in the groove 80EB of the moving shaft slide groove 80E, and the moving shaft 76B is arranged in the groove 80FC of the moving shaft slide groove 80F. ..

By arranging the moving shafts 76A and the like of the rotation shielding walls 71A and the like as described above with reference to FIG. 7B, the rotation shielding walls 71A and the like are all closed. Can be done. In this fully closed state, all of the rotation shielding walls 71A to 71F are in the closed state, and the rotation shielding walls 71A to 71F surround the blower 47 described above.

With reference to FIG. 8, when the shielding device 70 is fully closed, all the openings connected to the refrigerating chamber supply air passages 29 and the like are closed, so that cold air is not supplied to these air passages. During the defrosting process, such a fully closed state is achieved. Specifically, in the defrosting process, referring to FIG. 3, the blower port 27 and the blower 47 of the cooling chamber 26 are covered with the shielding device 70. Therefore, each supply air passage and the cooling chamber 26 are separated from each other. Further, in the defrosting process, the control device stops the compressor 44 and the blower 47 and energizes the defrosting heater 46 to heat the air in the cooling chamber 26. As a result, the frost adhering to the surface of the cooler 45 is melted and removed. In such a defrosting process, since the shielding device 70 is in a fully closed state, it is possible to prevent the heated warm air from leaking to each supply air passage via the air outlet 27.

The shielding device 70 in the fully open state will be described with reference to FIGS. 9 and 10. FIG. 9 shows the shielding device 70 in the fully open state. FIG. 9A shows the rotating plate 73 in the fully open state, and FIG. 9B shows the rotating shielding wall 71A and the like in that state.

With reference to FIG. 9A, the fully open state is realized by rotating the rotating plate 73 in the opposite direction from the fully closed state shown in FIG. 7A. In this fully open state, the moving shaft 76A or the like of each rotation shielding wall 71A or the like is arranged in the groove portion arranged on the outer side in the radial direction of each moving shaft slide groove 80A or the like. Further, a moving shaft 76A or the like such as each rotation shielding wall 71A is arranged at an end portion on the forward side of each moving shaft slide groove 80A or the like.

Specifically, the moving shaft 76A is arranged in the groove 80AC of the moving shaft slide groove 80A, the moving shaft 76B is arranged in the groove 80BD of the moving shaft slide groove 80B, and the moving shaft 76C is arranged in the groove 80CC of the moving shaft slide groove 80C. Be placed. Further, the moving shaft 76D is arranged in the groove 80DC of the moving shaft slide groove 80D, the moving shaft 76E is arranged in the groove 80EC of the moving shaft slide groove 80E, and the moving shaft 76F is arranged in the groove 80FD of the moving shaft slide groove 80F. ..

By arranging the moving shafts 76A and the like of the rotation shielding walls 71A and the like as described above with reference to FIG. 9B, it is possible to make the rotation shielding walls 71A and the like fully open. can. In this fully open state, all of the rotation shielding walls 71A to 71F are in the open state.

With reference to FIG. 10, when the shielding device 70 is fully opened, all the openings connected to the refrigerating chamber supply air passages 29 and the like are opened, so that cold air is blown to these air passages. Specifically, cold air is supplied to the refrigerating chamber 15 via the refrigerating chamber supply air passage 29, cold air is supplied to the upper freezing chamber 18 via the upper supply air passages 51 and 52, and the lower supply air passage 53, Cold air is supplied to the lower freezing chamber 19 via 54 and 55. Further, cold air is also supplied to the vegetable compartment 20 via a supply air passage (not shown here).

A semi-open state shielding device 70 that blows cold air only to the refrigerating chamber 15 will be described with reference to FIGS. 11 and 12. FIG. 11 shows the shielding device 70 in the half-open state. FIG. 11A shows the rotating plate 73 in the half-open state, and FIG. 11B shows the rotating shielding wall 71A and the like in that state.

With reference to FIG. 11 (A), the half-open state is realized by slightly rotating the rotating plate 73 in the opposite direction from the fully closed state shown in FIG. 7 (A). In this half-open state, the moving shaft 76A is arranged in the radial outer portion only in the moving shaft slide groove 80A. On the other hand, in another moving shaft slide groove 80B or the like, the moving shaft 76B is arranged in the inner portion in the radial direction.

Specifically, the moving shaft 76A is arranged at the opposite end of the groove 80AC of the moving shaft slide groove 80A. By doing so, as will be described later, only the upper part of the shielding device 70 can be opened.

On the other hand, the moving shaft 76B is arranged in the groove portion 80BC of the moving shaft slide groove 80B, and the moving shaft 76C is arranged at the forward end portion of the groove portion 80CB of the moving shaft slide groove 80C. Further, the moving shaft 76D is arranged in the groove 80DB of the moving shaft slide groove 80D, the moving shaft 76E is arranged in the groove 80EB of the moving shaft slide groove 80E, and the moving shaft 76F is arranged in the groove 80FC of the moving shaft slide groove 80F. ..

By arranging the moving shaft 76A and the like of each rotation shielding wall 71A and the like as described above with reference to FIG. 11B, the rotation shielding wall 71A has the moving shaft 76A moved outward in the radial direction. It rotates counterclockwise around the rotation shaft 75A and becomes an open state. On the other hand, the other rotation-shielding walls 71B to rotation-shielding walls 71F remain closed because their moving shafts 76B to 76F remain inward in the radial direction.

With reference to FIG. 12, when the shielding device 70 is in the semi-open state described above, cold air is blown only to a part of the air passages, and cold air is not blown to the other air passages. Specifically, cold air is supplied to the refrigerating chamber 15 via the refrigerating chamber supply air passage 29. On the other hand, cold air is not supplied to the upper freezing chamber 18 via the upper supply air passages 51 and 52, and cold air is not supplied to the lower freezing chamber 19 via the lower supply air passages 53, 54 and 55.

A half-open state shielding device 70 that blows cold air only to the upper freezing chamber 18 and the like will be described with reference to FIGS. 13 and 14. FIG. 13 shows the shielding device 70 in the half-open state. FIG. 13A shows the rotating plate 73 in the half-open state, and FIG. 13B shows the rotating shielding wall 71A and the like in that state.

By slightly rotating the rotary plate 73 in the forward direction from the state shown in FIG. 11 (A) with reference to FIG. 13 (A), a half-open state in which cold air is blown only to the upper freezing chamber 18 is realized. There is. In this half-open state, the moving shafts 76B and 76F are arranged in the radial outer portion only in the moving shaft slide grooves 80B and 80F. On the other hand, in the other moving shaft slide grooves 80A, 80C, 80D, 80E, the moving shafts 76A, 76C, 76D, 76E are arranged in the inner portion in the radial direction. Therefore, as will be described later, only both ends of the shielding device 70 in the left-right direction can be opened.

Specifically, the moving shaft 76A is arranged in the groove 80A of the moving shaft slide groove 80A, the moving shaft 76B is arranged at the forward end of the groove 80BA of the moving shaft slide groove 80B, and the groove portion of the moving shaft slide groove 80C. The moving shaft 76C is arranged on the 80CB. Further, the moving shaft 76D is arranged in the groove 80DB of the moving shaft slide groove 80D, the moving shaft 76E is arranged in the groove 80EB of the moving shaft slide groove 80E, and the moving shaft 76E is moved to the opposite end of the groove 80FB of the moving shaft slide groove 80F. The shaft 76F is arranged.

By arranging the moving shaft 76A and the like of each rotation shielding wall 71A and the like as described above with reference to FIG. 13B, the rotation shielding wall 71B has the moving shaft 76B moved outward in the radial direction. It rotates counterclockwise around the rotation shaft 75A and becomes an open state. Similarly, the rotation shielding wall 71F is also in the open state. On the other hand, the other rotary shielding walls 71A, 71C, 71D, 71E remain closed because their moving axes 76C, 76D, 76E remain inward in the radial direction.

With reference to FIG. 14, when the shielding device 70 is in the semi-open state described above, cold air is blown only to the upper supply air passages 51 and 52, and only the upper freezing chamber 18 and the like described above are cooled. On the other hand, cold air is not supplied to the upper freezing chamber 18 via the refrigerating chamber supply air passage 29 and the lower supply air passages 53, 54, 55, and cold air is not supplied to the above-mentioned refrigerating chamber 15 and the lower freezing chamber 19. Further, cold air is not supplied to the refrigerating chamber supply air passage 29. Therefore, only the ice making chamber 16 and the upper freezing chamber 18 shown in FIG. 1 can be effectively cooled.

A half-open state shielding device 70 that blows cold air only to the above-mentioned lower freezing chamber 19 will be described with reference to FIGS. 15 and 16. FIG. 15 shows the shielding device 70 in the half-open state. FIG. 15A shows the rotating plate 73 in the half-open state, and FIG. 15B shows the rotating shielding wall 71A and the like in that state.

By rotating the rotary plate 73 in the forward direction from the state shown in FIG. 13 (A) with reference to FIG. 15 (A), a half-open state in which cold air is blown only to the lower freezing chamber 19 is realized. .. In this half-open state, the moving shafts 76C, 76D, 76E are arranged in the radial outer portion only in the moving shaft slide grooves 80C, 80D, 80E. On the other hand, in the other moving shaft slide grooves 80A, 80B, 80F, the moving shafts 76A, 76B, 76F are arranged in the radial inner portion. Therefore, as will be described later, only the lower part of the shielding device 70 can be opened.

Specifically, the moving shaft 76A is arranged in the groove 80A of the moving shaft slide groove 80A, the moving shaft 76B is arranged at the opposite end of the groove 80BA of the moving shaft slide groove 80B, and the groove portion of the moving shaft slide groove 80C. The moving shaft 76C is arranged at the opposite end of the 80CA. Further, the moving shaft 76D is arranged at the opposite end of the groove 80DA of the moving shaft slide groove 80D, and the moving shaft 76E is arranged at the opposite end of the groove 80EA of the moving shaft slide groove 80E. The moving shaft 76F is arranged at the opposite end of the groove 80FA of the 80F.

By arranging the moving shafts 76A and the like of the rotating shielding walls 71A and the like as described above with reference to FIG. 15B, the rotating shielding wall 71C has the moving shaft 76C moved outward in the radial direction. , Rotates counterclockwise around the rotation shaft 75C to open. Similarly, the rotation shielding wall 71D is opened by rotating counterclockwise around the rotation shaft 75D by moving the moving shaft 76D outward in the radial direction. Further, the rotation shielding wall 71E is also opened by rotating counterclockwise around the rotation shaft 75E by moving the moving shaft 76E outward in the radial direction. On the other hand, the other rotary shielding walls 71A, 71B, 71F remain closed because their moving shafts 76A, 76B, 76F remain inward in the radial direction.

With reference to FIG. 16, when the shielding device 70 is in the semi-open state described above, cold air is blown only to the lower supply air passages 53, 54, 55, and only the lower freezing chamber 19 and the like described above are cooled. On the other hand, cold air is not supplied via the refrigerating chamber supply air passages 29 and the upper supply air passages 51 and 52, and cold air is not supplied to the refrigerating chamber 15 and the upper freezing chamber 18 described above. Therefore, only the lower freezing chamber 19 shown in FIG. 1 can be effectively cooled.

As described above, the shielding device 70 according to the present embodiment can open and close each air passage by rotating the rotation shielding wall 71A and the like shown in FIG. Therefore, since the rotation shielding wall 71A and the like are displaced with respect to the radial direction of the blower 47, the members are not displaced along the axial direction of the blower 47. Therefore, the thickness occupied by the shielding device 70 becomes smaller. Further, referring to FIG. 2, since the volume occupied by the cloaking device 70 can be reduced, the internal volume of the freezing chamber 17 formed in front of the cloaking device 70 can be increased to increase the volume of the freezing object to be frozen. Can be stored in the freezing chamber 17.

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

10 Refrigerator 11 Insulation box body 12 Outer box 13 Inner box 14 Insulation material 15 Refrigerator room 16 Refrigerator room 17 Freezer room 18 Upper freezer room 19 Lower freezer room 20 Vegetable room 21 Insulation door 22 Insulation door 23 Insulation door 24 Insulation door 25 Insulation door 25 26 Cooling room 27 Air outlet 28 Return port 29 Refrigerator room supply air passage 31 Refrigerator room supply air passage 33 Air outlet 34 Air outlet 37 Vegetable room Return air passage 38 Return port 39 Return port 42 Insulation partition wall 43 Insulation partition wall 44 Compressor 45 Refrigerator 46 Defrost heater 47 Blower 51 Upper supply air passage 52 Upper supply air passage 53 Lower supply air passage 54 Lower supply air passage 55 Lower supply air passage 56 Air passage partition wall 65 Partition 66 Partition 67 Front cover 70 Shielding Devices 71, 71A, 71B, 71C, 71D, 71E, 71F Rotating shield wall 72 Support plate 73 Rotating plate 74 Drive motor 75, 75A, 75B, 75C, 75D, 75E, 75F Rotating shaft 76, 76A, 76B, 76C, 76D , 76E, 76F Moving shaft 77 Support part 78 Screw 79, 79A, 79B, 79C, 79D, 79E, 79F Rotating shaft slide groove 80, 80A, 80B, 80C, 80D, 80E, 80F Moving shaft slide groove 80AA, 80AB, 80AC Groove 80BA, 80BB, 80BC, 80BD Groove 80CA, 80CB, 80CC Groove 80DA, 80DB, 80DC Groove 80EA, 80EB, 80EC Groove 80FA, 80FB, 80FC, 80FD Groove 100 Refrigerator 101 Refrigerator room 102 Refrigerator room 103 Vegetable room 104 Cooling room 105 Partition wall 106 Opening 107 Blower fan 108 Cooler 109 Air passage 110 Blower cover 111 Recess 113 Recess 113 Opening 114 Damper

Claims (7)

It is a shielding device that blocks the air passage inside the refrigerator.
Multiple shielding walls that surround the blower rotated by the motor from the outside in the radial direction,
Adjacent to the shielding wall, with a rotatable rotating plate,
The shielding wall is displaced outward in the radial direction of the blower, so that the air passage is opened.
The shielding wall is displaced inward in the radial direction of the blower, so that the air passage is closed.
The shielding wall has a rotation axis as a rotation center and a protruding movement axis.
The rotating plate has a moving shaft slide groove meandering along the direction of rotation.
A shielding device characterized in that the shielding wall opens and closes by sliding the moving shaft of the shielding wall in the moving shaft slide groove of the rotating plate with the rotation of the rotating plate. It is a shielding device that blocks the air passage inside the refrigerator.
Equipped with multiple shielding walls that surround the blower rotated by the motor from the outside in the radial direction.
The shielding wall is displaced outward in the radial direction of the blower, so that the air passage is opened.
The shielding wall is displaced inward in the radial direction of the blower, so that the air passage is closed.
The shielding wall is a rotation shielding wall that realizes the open state by rotating toward the outside in the radial direction with a rotation axis formed on one end side thereof as a rotation center.
Adjacent to the rotation shield wall, a rotatable rotating plate, is further provided.
The rotating plate has a rotating shaft slide groove in which the rotating shaft of the rotating shielding wall slides, and a moving shaft slide groove in which the moving axis of the rotating shielding wall is slidably arranged.
The rotary shaft slide groove is formed substantially parallel to the circumferential direction.
A shielding device characterized in that a part of the moving shaft slide groove is formed so as to be inclined with respect to the circumferential direction. A plurality of the moving shaft slide grooves are formed,
The shielding device according to claim 2, wherein the moving shaft slide grooves have different shapes. The moving shaft slide groove is characterized by having a first groove portion extending parallel to the circumferential direction of the rotating plate and a second groove portion extending radially outward from the first groove portion. The shielding device according to claim 2 or 3. The shielding device according to claim 4, wherein the moving shaft slide groove further has a third groove portion extending radially inward from the second groove portion. A refrigerating cycle cooler that cools the air supplied to the storage chamber via the air passage, and
A cooling chamber in which the cooler is arranged and an air outlet connected to the storage chamber is formed.
The blower that blows the air supplied from the blower port toward the storage chamber, and the blower.
A refrigerator comprising the shielding device according to any one of claims 1 to 5, which partially closes the air outlet. The refrigerator according to claim 6, wherein a plurality of air passages are formed from the shielding device toward the periphery.

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