WO2020238615A1 - Shielding device and refrigerator comprising same - Google Patents

Abstract

A shielding device (70) capable of reducing the occupied volume of a storage compartment, and refrigerators (10, 100). The shielding device (70) is used for properly closing an air path (109) for blowing cold air inside the refrigerators (10, 100), and comprises: a plurality of rotating shielding walls (71, 711, 712, 713, 714, 715) surrounding an air supply unit (47) from an outer side in the radial direction, and a shielding wall drive mechanism (60) for driving opening and closing actions of the rotating shielding walls (71, 711, 712, 713, 714, 715). The shielding device (70) inclines towards the inner side by means of the rotating shielding walls (71, 711, 712, 713, 714, 715) so that the air path (109) is in an open state.

Description

Shading device and refrigerator with the shielding device Technical field

The present invention relates to a shielding device and a refrigerator having the shielding device. In particular, the present invention relates to a shielding device that can appropriately close an air path connecting a cooling chamber and a storage room, and a refrigerator having the shielding device.

Background technique

Conventionally, there has been known a refrigerator as described in Patent Document 1 (JP 2013-2664 A), which appropriately cools a plurality of storage compartments by one cooler.

FIG. 24 schematically shows the refrigerator 100 described in this document. In the refrigerator 100 shown in the figure, a refrigerating compartment 101, a freezing compartment 102, and a vegetable compartment 103 are formed from above. A cooling chamber 104 accommodating a cooler 108 is formed inside the freezing chamber 102, and an opening 106 is formed in a partition wall 105 separating the cooling chamber 104 and the freezing chamber 102, and the opening 106 is used to supply cold air to each storage chamber. In addition, a blower fan 107 for blowing cold air is arranged at the opening 106, and a blower cover 110 covering the blower fan 107 is arranged on the side of the freezing compartment 102. A damper 114 is provided in the air path 109 through which the cold air supplied to the refrigerator compartment 101 flows.

The aforementioned blower cover 110 will be described in detail with reference to FIG. 25. The blower cover 110 is formed with a recess 111 having a substantially square shape, and an opening 113 is formed by notching the upper portion of the recess 111. Here, when the blower cover 110 covers the blower fan 107, the opening 113 of the blower cover 110 communicates with the air passage 109 on the side of the refrigerator body.

During operation of the refrigerator 100 having the above configuration, when the refrigerating compartment 101 and the freezing compartment 102 are cooled simultaneously, the blower cover 110 is separated from the blower fan 107, the damper 114 is opened, and the blower fan 107 rotates in this state. In this way, a part of the cold air cooled by the cooler 108 in the cooling chamber 104 is blown into the freezing chamber 102 by the blowing force of the blower fan 107. In addition, the other part of the cold air is blown into the refrigerating compartment 101 via the air passage 109, the damper 114, and the air passage 109. Thus, both the freezing compartment 102 and the refrigerating compartment 101 are cooled.

On the other hand, when only cooling the refrigerating compartment 101 is required, the blower fan 107 is covered by the blower cover 110 and the damper 114 is opened. In this state, the blower fan 107 blows the cold air cooled by the cooler 108. When the blower cover 110 is in a closed state, the opening 113 formed at the upper portion 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 compartment 101 via the opening 113, the damper 114, and the air passage 109 described above.

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

However, the blower cover 110 having the above configuration closes the opening 106 of the cooling chamber 104 by moving backward, and opens the opening 106 of the cooling chamber 104 by moving forward. In addition, it is necessary to provide a driving mechanism for moving the blower cover 110 in the front and rear directions.

The blower cover 110 needs a space for opening and closing operations in the front-rear direction. Therefore, inside the refrigerator 100, a large space is required for opening and closing the blower cover 110. As a result, there is a problem in that the internal volume of the freezer compartment 102 formed in front of the blower cover 110 is compressed, and the amount of storage that the freezer compartment 102 can accommodate is limited. In addition, when the blower cover 110 is moved in the front-rear direction by the motor, a driving sound is generated. If the driving sound is loud, it may be uncomfortable for the user.

Summary of the invention

In view of the above situation, the object of the present invention is to provide a shielding device that does not occupy the internal volume of the refrigerator and has a low driving sound, and a refrigerator having the shielding device.

In order to achieve the above-mentioned object of the invention, the present invention provides a shielding device for closing the air path for blowing cold air inside a refrigerator, the shielding device having a rotating shielding wall that surrounds the blower from the radially outer side; and a shielding wall driving mechanism, which The rotating covering wall is driven, and the rotating covering wall opens the air passage by turning inward in the radial direction to fall, and closes the air passage by rotating outward in the radial direction to stand up.

Further, the shielding device has: a disc-shaped rotating disk formed with a sliding groove of a moving shaft; a cam formed with a moving shaft that cooperates with the sliding groove of the moving shaft, and is rotatably connected with the rotating cover wall Connection; and a drive motor that rotates the rotating disk, and by rotating the rotating disk, the moving shaft slides in the moving shaft sliding groove, whereby when the cam moves inward in the radial direction, the The rotating cover wall closes the air path; by the rotation of the rotating disk, the moving shaft slides in the sliding groove of the moving shaft, so that when the cam moves outward in the radial direction, the rotating cover wall Open the wind road.

Further, the shielding device further has a support base formed with a cam receiving portion, the rotating covering wall is rotatably mounted to the support base, and the cam is slidably received in the cam receiving portion in a radial direction.

Further, a space is formed between the blower and the rotating covering wall, and the space allows the rotating covering wall to tilt inward in the radial direction.

The present invention also provides a refrigerator having: a refrigerating circuit having a cooler for cooling air supplied to a storage room via the air path; a cooling room formed with an air outlet connected to the storage room, so The cooling chamber is equipped with the cooler; a blower that blows the air supplied from the air outlet to the storage chamber; and at least partially closes the air path and the shielding device according to any one of the preceding items.

Effect of the Invention: The shielding device of the present invention covers the air passage by rotating the rotating shielding wall to the radially outer side, so that the direction of the rotating shielding wall when covering is substantially the same as the direction of the air flow blown by the blower, so that it can improve the shielding Air tightness.

In addition, compared with the conventional shielding device in which the members constituting the shielding device move in the depth direction, the volume occupied by the shielding device can be reduced, and the internal volume of the refrigerator can not be occupied.

In addition, according to the present invention, by restricting the movement direction of the cam to the radial direction inside the cam housing portion of the support base, the opening and closing of the rotary covering wall can be preferably driven by the sliding operation of the cam.

In addition, according to the present invention, when the rotating covering wall is in an open state, a space in which the rotating covering wall can be tilted can be ensured between the blower and the rotating covering wall. On the other hand, when the rotating covering wall is in an open state, a space in which cold air can circulate can be secured between the rotating covering wall and the blower.

In addition, the refrigerator of the present invention can reduce the internal volume of the refrigerator occupied by the shielding device, and therefore can ensure a large effective volume of each storage compartment. In addition, since the air path resistance of the shielding device is small, a large blowing amount can be obtained with a small amount of energy, and the storage room can be efficiently cooled.

Description of the drawings

Fig. 1 is a front view showing the appearance of a refrigerator according to an embodiment of the present invention.

Fig. 2 is a side cross-sectional view showing the internal structure of the refrigerator according to the embodiment of the present invention.

Fig. 3 is an enlarged side cross-sectional view showing the structure near the cooling chamber of the refrigerator according to the embodiment of the present invention.

4 is a diagram showing the assembled state of the shielding device used in the refrigerator according to the embodiment of the present invention, (A) is a perspective view, (B) is a cross-sectional view seen from the section line AA, ( C) is a diagram showing the structure of the wind path viewed from the rear.

Fig. 5 is a diagram showing a shielding device according to an embodiment of the present invention, (A) is an exploded perspective view, and (B) is an exploded cross-sectional view.

6 is a diagram showing the shielding device according to the embodiment of the present invention, (A) is an exploded perspective view partially showing the shielding device, and (B) is a perspective view showing a cam.

7 is a diagram showing the shielding device according to the embodiment of the present invention, (A) is a diagram showing the rotating cover wall of the shielding device viewed from the rear, (B) is a diagram showing the structure of the rotating disk viewed from the rear Figure.

8 is a diagram showing a fully closed state of the shielding device according to the embodiment of the present invention, (A) is a diagram showing the shielding device viewed from the rear, (B) is a cross-sectional line BB from (A) In the cross-sectional view of the shielding device, (C) is a diagram showing the rotating disk viewed from the rear, and (D) is a partially enlarged cross-sectional view of (B).

9 is a diagram showing a fully open state of the shielding device according to the embodiment of the present invention, (A) is a diagram showing the shielding device viewed from the rear, (B) is viewed from the section line CC of (A) The cross-sectional view of the shielding device, (C) is a view showing the rotating disk viewed from the rear, and (D) is a partially enlarged cross-sectional view of (B).

10 is a diagram showing a state in which cold air is supplied only to the lower freezing compartment in the shielding device according to the embodiment of the present invention when viewed from the rear, (A) is a diagram showing the shielding device, and (B) is a diagram showing rotation Figure of the disk.

11 is a diagram showing the state of the air path when only cold air is supplied to the lower freezing compartment in the shielding device according to the embodiment of the present invention when viewed from the rear.

12 is a diagram showing a state in which only cold air is supplied to the freezer compartment in the shielding device according to the embodiment of the present invention, viewed from the rear, (A) is a diagram showing the shielding device, and (B) is a rotating disk Figure.

FIG. 13 is a diagram showing the state of the air passage when only cold air is supplied to the freezing compartment in the shielding device according to the embodiment of the present invention when viewed from the rear.

14 is a diagram showing a state in which cold air is supplied only to the upper freezing compartment in the shielding device according to the embodiment of the present invention when viewed from the rear, (A) is a diagram showing the shielding device, and (B) is a diagram showing rotation Figure of the disk.

15 is a diagram showing the state of the air path when only cold air is supplied to the entire upper-level freezing compartment in the shielding device according to the embodiment of the present invention when viewed from the rear.

16 is a diagram showing a state in which cold air is not supplied in the shielding device according to the embodiment of the present invention when viewed from the rear, (A) is a diagram showing the shielding device, and (B) is a diagram showing a rotating disk.

FIG. 17 is a diagram showing the state of the air passage when cold air is not supplied in the shielding device according to the embodiment of the present invention when viewed from the rear.

18 is a diagram showing a state in which only cold air is supplied to the refrigerating compartment in the shielding device according to the embodiment of the present invention when viewed from the rear, (A) is a diagram showing the shielding device, (B) is a rotating disk Figure.

19 is a diagram showing the state of the air passage when only cold air is supplied to the refrigerating compartment in the shielding device according to the embodiment of the present invention, as viewed from the rear.

20 is a diagram showing a state in which cold air is supplied to the upper freezer compartment and the refrigerating compartment in the shielding device according to the embodiment of the present invention, viewed from the rear, (A) is a diagram showing the shielding device, and (B) is a diagram Figure out the spinning disk.

Fig. 21 is a diagram showing the state of the air path when cold air is supplied to the upper-level freezing compartment and the refrigerating compartment in the shielding device according to the embodiment of the present invention when viewed from the rear.

22 is a diagram showing a state in which cold air is supplied to the entire freezer compartment and the refrigerating compartment in the shielding device according to the embodiment of the present invention, viewed from the rear, (A) is a diagram showing the shielding device, and (B) is a diagram Figure out the spinning disk.

FIG. 23 is a diagram showing the state of the air path when cold air is supplied to the entire freezing compartment and the refrigerating compartment in the shielding device according to the embodiment of the present invention when viewed from the rear.

Fig. 24 is an enlarged cross-sectional view showing a refrigerator according to the background art.

Fig. 25 is a perspective view showing a blower cover used in a refrigerator according to the background art.

Detailed ways

The attached drawings are only for illustrative purposes and cannot be understood as a limitation of this patent; in order to better illustrate this embodiment, some parts of the attached drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; It is understandable for the personnel that some well-known structures in the drawings and their descriptions may be omitted.

Hereinafter, the shielding device 70 and the refrigerator 10 according to the embodiment of the present invention will be described in detail based on the drawings. In the following description, the same components are attached with the same symbols in principle, and repeated descriptions will be omitted. Furthermore, in the following description, the directions of up, down, front, back, left, and right are appropriately used, where left and right indicate left and right when the refrigerator 10 is viewed from the rear. Furthermore, in the following description, the rotation direction is represented by clockwise and counterclockwise, and these rotation directions indicate the direction when viewed from the back of the refrigerator 10. In addition, in the following description, clockwise may be referred to as a forward direction, and counterclockwise may be referred to as a reverse direction.

FIG. 1 is a front appearance view showing a schematic structure of a refrigerator 10 of this embodiment. As shown in FIG. 1, the refrigerator 10 has a heat-insulating box 11 as a main body, and a storage room for storing food and the like is formed inside the heat-insulating box 11. As the storage room, the uppermost layer is the refrigerating chamber 15, the lower layer is the upper freezing chamber 18, the further lower layer is the lower freezing chamber 19, and the lowermost layer is the vegetable room 20. In addition, the upper freezing compartment 18 and the lower freezing compartment 19 are both storage compartments in the freezing temperature range, and they may be collectively referred to as the freezing compartment 17 in the following description. Here, the upper freezer compartment 18 can be partitioned left and right, and one side can be used as an ice making compartment.

The front of the heat-insulating box body 11 has an opening, and the openings corresponding to the aforementioned storage rooms are provided with heat-insulating doors 21 and the like, which can be opened and closed freely. The refrigerating compartment 15 is divided in the left and right direction and is respectively closed by corresponding heat insulation doors 21, and the outer upper and lower ends of the heat insulation doors 21 in the width direction are rotatably installed on the heat insulation box 11. In addition, the heat-insulating doors 23, 24, and 25 are assembled integrally with each storage container, can be drawn freely along the front of the refrigerator 10, and are supported by the heat-insulating box 11. Specifically, the heat insulation door 23 closes the upper freezer compartment 18, the heat insulation door 24 closes the lower freezer compartment 19, and the heat insulation door 25 closes the vegetable compartment 20.

FIG. 2 is a side cross-sectional view showing the schematic structure of the refrigerator 10. The heat-insulating box 11 of the main body of the refrigerator 10 is composed of an outer shell 12 made of a steel plate with an open front, and a liner 13 made of synthetic resin with an open front arranged in the outer shell 12 with a gap. The gap between the outer shell 12 and the inner liner 13 is filled with a heat insulating material 14 made of foamed polyurethane. In addition, each of the above-mentioned heat insulation doors 21 and the like adopts the same heat insulation structure as the heat insulation box 11.

The refrigerating compartment 15 and the freezing compartment 17 located at the lower level thereof are separated by a heat insulating partition wall 42. In addition, the upper freezer compartment 18 and the lower freezer compartment 19 provided on the lower level communicate with each other, and the cooled air, that is, cold air, can circulate freely. Furthermore, between the freezing compartment 17 and the vegetable compartment 20 is partitioned by a heat insulating partition wall 43.

On the back of refrigerating compartment 15, it is partitioned by a partition 65 made of synthetic resin, and a refrigerating compartment supply air passage 29 as a supply air passage for supplying cold air to refrigerating compartment 15 is formed. In the refrigerating compartment supply air passage 29, an air outlet 33 through which cold air flows into the refrigerating compartment 15 is formed.

A freezer compartment supply air passage 31 is formed inside the refrigerating compartment 17, and cold air cooled by the cooler 45 flows into the freezer compartment 17 in this air passage. A cooling chamber 26 is formed on the rear inner side of the freezer compartment supply air path 31, and a cooler 45 is arranged inside the cooling chamber, which is an evaporator for cooling air circulating in the refrigerator. The freezer compartment supply air path 31 is a space surrounded by the front cover 67 and the partition 66 from the front and rear directions.

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

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

The freezer compartment supply air path 31 formed in the front of the cooling compartment 26 is a space formed between the cooling compartment 26 and the synthetic resin front cover 67 assembled in the front, and is the wind through which the cold air cooled by the cooler 45 enters the freezer compartment 17. road. The front cover 67 is formed with a blowing port 34 which is an opening for blowing cold air to the refrigerating compartment 17.

An air return port 38 for returning air from the freezing compartment 17 to the cooling compartment 26 is formed on the lower back surface of the lower freezing compartment 19. Further, below the cooling chamber 26, a return air port 28 is formed, which is connected to the return air port 38, and sucks the return cold air into the cooling chamber 26 from each storage chamber. The cold air returning through the return air port 39 (FIG. 2) of the vegetable compartment 20 and the vegetable compartment return air path 37 also flows into the return air port 28.

In addition, a defrost heater 46 is provided below the cooler 45 to melt the frost attached to the cooler 45, and the defrost heater 46 is a resistance heating type heater.

In the upper part of the cooling chamber 26, an air blowing port 27 is formed, which is an opening connected to each storage chamber. The air blowing port 27 is an opening into which the cold air cooled by the cooler 45 enters, and communicates the cooling chamber 26, the refrigerating compartment supply air passage 29, and the freezing compartment supply air passage 31. The blower opening 27 is provided with a blower 47 for sending cold air to the freezing compartment 17 and the like from the front. In addition, the function of the damper is assumed by the rotating covering wall 71 of the shielding device 70 described later, so the damper can be omitted.

Outside the air outlet 27 of the cooling chamber 26, a shielding device 70 is provided for appropriately closing the air path connected to the air outlet 27. The shielding device 70 is covered from the front by a front cover 67.

The configuration in which the shielding device 70 that restricts the above-mentioned air path is incorporated will be described with reference to FIG. 4(A) is a perspective view showing the partition 66 with the shielding device 70 assembled, FIG. 4(B) is a cross-sectional view along the line AA of FIG. 4(A), and FIG. 4(C) is a view showing the front from the rear A diagram showing the configuration of the wind path in the case of the cover 67.

Referring to FIG. 4(A), in the partition 66, an air blowing port 27 penetrating in the thickness direction is formed in the upper portion, and a blower 47 and a shielding device 70 are arranged in front of the blowing port 27. Here, the shielding device 70 is hidden by the partition 66. In addition, the opening 59 formed on the upper end side of the partition 66 communicates with the refrigerating compartment supply air passage 29 shown in FIG. 3.

4(B), as described above, as a space surrounded by the partition 66 and the front cover 67, the freezer compartment supply air path 31 is formed. As described later, the freezer compartment supply air passage 31 is divided into a plurality of air passages. In addition, a shielding device 70 and a shielding wall driving mechanism 60 are arranged between the partition 66 and the front cover 67. The shielding device 70 covers the blower 47, and the shielding wall driving mechanism 60 drives the shielding device 70. The structure of the shielding device 70 and the shielding wall driving mechanism 60 will be described later with reference to FIG. 5.

Referring to FIG. 4(C), by partitioning the internal space of the front cover 67, a plurality of air blowing paths are formed. Specifically, rib-shaped air passage partition walls 50 and 56 extending rearward from the rear main surface of the front cover 67 are formed. The rear ends of the air passage partition walls 50 and 56 are adjacent to the partition 66 shown in FIG. 4(B).

Here, the air supply path for blowing cold air is divided into a refrigerating room supply air path 51, an upper freezing room supply air path 52, and a lower freezing room supply air path 53 from above. The refrigerating compartment supply air passage 51 circulates cold air blown to the refrigerating compartment 15, the upper freezer compartment supply air passage 52 circulates cold air blown to the upper freezer compartment 18, and the lower freezer compartment supply air passage 53 circulates cold air blown to the lower freezer compartment 19. The cold air flowing through the refrigerating compartment supply air passage 51 is blown to the refrigerating compartment 15 shown in FIG. 2 through the opening 59. The cold air flowing through the upper refrigerating compartment supply air path 52 is blown to the upper freezing compartment 18 shown in FIG. 2 through the blower outlet 34. The cold air flowing through the supply air passage 53 for the lower refrigerating compartment is blown to the lower freezing compartment 19 shown in FIG. 2 through the blower outlet 34. Here, the refrigerating compartment supply air passage 51, the upper freezer compartment supply air passage 52, and the lower freezer compartment supply air passage 53 spread around the shielding device 70 as the center.

The refrigerating compartment supply air passage 51 and the upper freezer compartment supply air passage 52 are partitioned by the air passage partition wall 50. Furthermore, the upper-level freezer compartment supply air path 52 and the lower-level freezer compartment supply air path 53 are partitioned by the air path partition wall 56.

The structure of the shielding device 70 will be described with reference to FIG. 5. 5(A) is an exploded perspective view showing the shielding device 70, and FIG. 5(B) is a side cross-sectional view showing the shielding device 70.

5(A) and 5(B), the shielding device 70 has a support base 63, a rotating shielding wall 71, and a shielding wall driving mechanism 60. The shielding device 70 is a device that covers the air path through which the blower 47 blows cold air. By turning the shielding device 70 into an open state, the air passage connecting the cooling chamber 26 and each storage compartment communicates, and by turning the shielding device 70 into a closed state, the air passage is cut off.

The blower 47 is arranged at the center of the front surface of the support base 63 by a fastening method such as screws. Although not shown here, the blower 47 includes a centrifugal fan such as a turbo fan, and a blowing motor that rotates the centrifugal fan, and blows cold air outward in the radial direction.

The support base 63 is a member formed of an integrally molded synthetic resin. On the back side of the support base 63, each rotating covering wall 71 is rotatably arranged. In addition, on the front side of the support base 63, a cam housing portion 62 that houses the cam 61 is formed. The cam housing portion 62 will be described later with reference to FIG. 6. In addition, on the front side of the support base 63, a rotating disk 73 is rotatably attached. In addition, a driving force motor 74 is mounted on the support base 63, which generates a driving force for opening and closing the rotating cover wall 71.

A side wall 58 is formed in the peripheral portion of the support base 63. The side wall portion 58 is a portion extending rearward from the support base 63. A plurality of side wall portions 58 are arranged at substantially equal intervals in the circumferential direction of the support base 63. The side wall portion 58 is arranged between the rotating covering walls 71. The rear end of the side wall 58 is fastened to the partition 66 shown in FIG. 4(B) via a fastening method such as screws.

The rotating cover wall 71 is a rectangular plate-shaped member formed of synthetic resin, and has a long side along the outer side of the rotating disk 73. The rotating cover wall 71 is installed near the edge of the support base 63 and can rotate backward about an axis parallel to the plane of the support base 63. Furthermore, a plurality of rotation shielding walls 71 (5 in this embodiment) are arranged in the vicinity of the peripheral portion of the support base 63. The rotating covering wall 71 is arranged on the path through which the cold air blown by the blower 47 passes, and covers the air path.

The rotating disk 73 is formed of a steel plate or a synthetic resin plate having a substantially disc shape when viewed from the front, and is rotatably arranged on the front side of the support base 63. The rotating disk 73 is formed with a moving shaft sliding groove 80 for rotating the rotating cover wall 71. The peripheral portion of the rotating disk 73 is formed with a gear portion 77 for transmitting torque. As described later, the drive motor 74 is driven, torque is transmitted via the gear portion 77 of the gear 30, and the rotating disk 73 is rotated to rotate the cover wall 71 to perform an opening and closing operation.

On the right part of the support base 63, a flange is formed for mounting a driving force motor 74 for rotating the rotating disk 73. Between the gear part 77 of the rotating disk 73 and the drive motor 74, the gear which is not shown here is arrange|positioned.

The covering wall drive mechanism 60 that drives the above-mentioned rotating covering wall 71 will be described with reference to FIG. 6. 6(A) is an exploded perspective view showing the left part of the shielding device 70, and FIG. 6(B) is a perspective view showing the cam 61.

6(A), the covering wall drive mechanism 60 has a cam 61, a rotating disk 73 that engages with the moving shaft 76 of the cam 61, and a drive motor 74 that rotates the rotating disk 73 (see FIG. 5(A)).

The cam 61 is a flat rectangular parallelepiped member formed of synthetic resin. As shown in FIG. 6(B), a rotation connection part 48 is formed at one end of the cam 61, and a hole part through which the pin 55 can pass is formed. The cam 61 is accommodated in the cam accommodation portion 62 of the support base 63.

The moving shaft 76 is a cylindrical protrusion protruding from the front of the cam 61, as shown in FIG. 6(B). The diameter of the moving shaft 76 is slightly shorter than the width of the moving shaft sliding groove 80 formed in the rotating disk 73. The moving shaft 76 slidably cooperates with the moving shaft sliding groove 80.

The cam accommodating portion 62 is a groove formed on the support base 63 and is formed elongated in the radial direction of the support base 63. The cam accommodating portion 62 is formed corresponding to each rotation covering wall 71, and is formed by recessing the support base 63 from the front. The size of the cam housing portion 62 is such that the cam 61 can be accommodated and the cam 61 can slide in the radial direction.

As shown in FIG. 6(A), the rotation shielding wall 71 is formed with a rotation connection portion 68 which protrudes obliquely from the end of the rotation shielding wall 71. The rotation connecting portion 68 has a hole through which the pin 55 can pass. In addition, rotation connecting portions 64 are formed near both ends of the side of the rotation shielding wall 71. The rotation connecting portion 64 has a hole through which the pin 69 can pass.

A rotation connecting portion 54 is formed in the vicinity of the peripheral portion of the support base 63. The rotation connection portion 54 is provided corresponding to the rotation connection portion 64 of each rotation covering wall 71. The rotation connecting portion 54 has a hole through which the pin 69 can pass.

When the pin 55 passes through the hole of the rotation connection portion 48 of the cam 61 and the hole of the rotation connection portion 68 of the rotation covering wall 71, the cam 61 is connected to the rotation covering wall 71 and can rotate about the pin 55. In addition, the support base 63 is slidably connected to the rotation cover wall 71 by passing the pin 69 through the hole of the rotation connection portion 54 of the support base 63 and the hole of the rotation connection portion 64 of the rotation cover wall 71.

By configuring the cover wall driving device 60 as described above, the driving motor 74 is driven to rotate the rotating disk 73, and the moving shaft 76 slides in the moving shaft sliding groove 80. As a result, the cam 61 slides in the cam housing portion 62. By sliding the cam 61, the rotation covering wall 71 can be rotated about the pin 55.

Specifically, when the cam 61 is slid to the center side of the support base 63, the rotating cover wall 71 rotates to the upright position with the rotation connecting portion 64 as the center of rotation, and the rotating cover wall 71 is perpendicular to the main surface of the support base 63. status. On the other hand, when the cam 61 is slid to the peripheral side of the support base 63, the rotating covering wall 71 rotates to the horizontal position with the rotating connecting portion 64 as the center of rotation, and the rotating covering wall 71 is approximately at the main surface of the supporting base 63. Parallel state.

Therefore, if the moving shaft sliding groove 80 is formed on the peripheral side of the support base 63, the rotation covering wall 71 can be opened. Conversely, if the moving shaft sliding groove 80 is formed on the center side of the support base 63, the rotation covering wall 71 can be closed. If this principle is used to select the shape of the movable shaft sliding groove 80 corresponding to each rotating covering wall 71, the opening and closing state of each rotating covering wall 71 can be arbitrarily set. Thereby, the rotating covering wall 71 can be in a fully open state or a fully closed state without adopting a complicated structure, and it can also be set in a state in which a part of the rotating covering wall 71 is in a closed state or an open state.

Here, as shown in FIG. 6(A), the rotating disk 73 and the cam 61 constituting the cover wall driving mechanism 60 are arranged on the front side of the support base 63. Therefore, referring to FIG. 4(B), each member constituting the cover wall driving mechanism 60 is not exposed to the freezer compartment supply air path 31 through which cold air flows. Therefore, the cold air does not blow on the covering wall driving device 60, and it is possible to prevent the covering wall driving device 60 from freezing.

Referring to FIG. 6(A), when the rotating covering wall 71 is in the closed state, each end of the rotating covering wall 71 in the longitudinal direction is adjacent to the side wall 58. In this way, by forming the side wall 58 at each end of the rotating covering wall 71 in the longitudinal direction, the airtightness when the rotating covering wall 71 is in the closed state can be improved, and therefore, the leakage of cold air during cooling and the heating during defrosting can be reliably suppressed. Inflow.

Furthermore, a frame 41 is formed between the side walls 58 comrades. The size of the frame 41 is about the same as that of the rotating covering wall 71. When the rotating covering wall 71 is in the above-mentioned standing state, it is adjacent to the frame 41 from the inside. With this configuration, the peripheral portion of the rotating cover wall 71 is in close contact with the frame portion 41, and the air passage can be closed with a higher airtightness.

FIG. 7 is a diagram showing a shielding device 70 according to an embodiment of the present invention, FIG. 7(A) is a diagram showing a rotating cover wall of the shielding device viewed from the rear, and FIG. 7(B) is a diagram showing Look at the diagram of the composition of the rotating disk.

7(A), the shielding device 70 has rotating shielding walls 711, 712, 713, 714, and 715 as the rotating shielding walls 71 described above. The rotating covering wall 711 to the rotating covering wall 715 have a rectangular shape with a long side substantially parallel to the tangential direction of the rotating disk 73. In addition, the rotating covering wall 711 to the rotating covering wall 715 are rotatably mounted on the peripheral portion of the support base 63 shown in FIG. 5(A).

The radially inner end of the rotating covering wall 711 is rotatably connected to the cam 611 forming the moving shaft 761. Similarly, the radially outer end of the rotating cover wall 712 is rotatably connected to the cam 612 forming the moving shaft 762. The radially outer end of the rotating cover wall 713 is rotatably connected to a cam 613 that forms a moving shaft 763. The radially outer end of the rotating covering wall 714 is rotatably connected to the cam 614 forming the moving shaft 764. The radially outer end of the rotating cover wall 715 is rotatably connected to a cam 615 that forms a moving shaft 765.

Here, the cam 611 is rotatably connected to the inner side of the rotating covering wall 711. As a result, the cam 611 is arranged on the outside, the rotating covering wall 711 is in a standing state, and the cam 611 is arranged on the inside, and the rotating covering wall 711 is in a lying state.

On the other hand, the cam 612 to the cam 615 are respectively rotatably connected to the outer sides of the rotating covering wall 712 to the rotating covering wall 715. As a result, the cams 612 to 615 are arranged inside, and the rotating covering wall 712 to the rotating covering wall 715 are in a standing state. On the other hand, the cams 612 to 615 are arranged on the outside, and the rotating covering wall 712 to the rotating covering wall 715 are in a horizontal state.

Referring to FIG. 7(B), the rotating disk 73 is a steel plate formed in a substantially disk shape, and a plurality of moving shaft sliding grooves 80 for managing the opening and closing operations of the rotating cover wall 711 and the like are formed. In addition, a gear portion 77 is formed in a part of the peripheral portion of the rotating disk 73, and the drive motor 74 shown in FIG. 5(A) meshes with the gear portion 77, so that the rotating disk 73 is rotated by the torque of the drive motor 74.

The rotating disk 73 is formed with moving shaft sliding grooves 801, 802, 804, and 805 as the moving shaft sliding groove 80. The moving shaft sliding groove 801 to the moving shaft sliding groove 805 are groove-shaped parts formed along the circumferential direction of the rotating disk 73. The moving shaft sliding groove 801 to the moving shaft sliding groove 805 have a predetermined zigzag shape in order to slide the cams 611 to 615 shown in FIG. 7(A) in the radial direction.

The moving shaft sliding groove 801 to the moving shaft sliding groove 805 is matched with the moving shaft 761 to the moving shaft 765 shown in FIG. 7(A). Specifically, the moving shaft sliding groove 801 is matched with the moving shaft 761, the moving shaft sliding groove 802 is matched with the moving shaft 762 and the moving shaft 763, the moving shaft sliding groove 804 is matched with the moving shaft 764, and the moving shaft sliding groove 805 is matched with the moving shaft 765. Cooperate.

The moving shaft sliding groove 801 is composed of a groove portion 8011 to a groove portion 8013. The groove portion 8011 extends in the circumferential direction, the groove portion 8012 is inclined counterclockwise inward in the radial direction, and the groove portion 8013 extends in the circumferential direction.

The moving shaft sliding groove 802 is composed of a groove 8021 to a groove 8029. The groove 8021 is inclined counterclockwise to the radial inner side, the groove 8022 extends in the circumferential direction, the groove 8023 is inclined counterclockwise to the radial outer side, and the groove 8024 extends in the circumferential direction. In addition, the groove portion 8025 is inclined counterclockwise to the radial direction inner side, the groove portion 8026 extends in the circumferential direction, and the groove portion 8027 is inclined counterclockwise to the radial direction outer side. Furthermore, the groove portion 8028 extends in the circumferential direction, and the groove portion 8029 is inclined counterclockwise inward in the radial direction.

The moving shaft sliding groove 804 is composed of a groove 8041 to a groove 8044. The groove 8041 extends in the circumferential direction, the groove 8042 is inclined counterclockwise to the radially outer side, the groove 8043 extends in the circumferential direction, and the groove 8044 is inclined to the radial inner side in the counterclockwise direction.

The moving shaft sliding groove 805 is composed of a groove 8051 to a groove 8056. The groove 8051 is inclined counterclockwise to the radial inside, the groove 8052 extends in the circumferential direction, the groove 8053 is inclined counterclockwise to the radial outside, and the groove 8054 extends in the circumferential direction. The groove 8055 is inclined counterclockwise to the radial inner side, and the groove 8056 extends in the circumferential direction.

In addition, the inner portion of the rotating disk 73 is formed with a rotating shaft sliding groove 79 extending in the circumferential direction. Here, three rotary shaft sliding grooves 79 are formed at equal intervals. The rotating disk 73 is held on the support base 63 via a rotating shaft 75 (refer to FIG. 8(C)), and the rotating shaft is slidably engaged with the rotating shaft sliding groove 79.

FIG. 8 shows the structure of the shielding device 70 in a fully closed state. Fig. 8(A) is a view of the shielding device 70 viewed from the rear in a fully closed state, Fig. 8(B) is a cross-sectional view taken along line BB of Fig. 8(A), and Fig. 8(C) is a view in the fully closed state from the rear Fig. 8(D) is an enlarged view of the main points of Fig. 8(B). Here, the fully closed state refers to a state in which the periphery of the blower 47 is covered by rotating the covering wall 71, thereby closing the blower opening 27 shown in FIG. 4. In addition, in this fully closed state, the blower 47 does not rotate.

8(A), the shielding device 70 prevents air from flowing out of the blower 47 to the outside in a fully closed state. That is, in the fully closed state, the cover wall 71 is fully rotated, that is, the cover wall 711 is turned to the cover wall 715 to stand up, the communication with the air path for supplying cold air is cut off, and the cold air is not supplied to the refrigerator compartment 15 and the freezer compartment 17. . In addition, in the defrosting process for defrosting the cooler 45 shown in FIG. 2, the shielding device 70 is also in a fully closed state, so that warm air does not flow from the cooling chamber 26 into the refrigerating compartment 15 and the freezing compartment 17.

Referring to FIG. 8(B), in the fully closed state, the rotating covering wall 715 and the rotating covering wall 712 are in a closed state in which they stand substantially perpendicular to the main surface of the support base 63. In addition, in this state, the rear ends of the rotating covering wall 715 and the rotating covering wall 712 are adjacent to the partition 66 shown in FIG. 4, or are arranged close to the partition 66. By setting it in this way, the airtightness at the time of closing the air path with the rotating covering wall 71 can be improved.

Referring to FIG. 8(C), when the shielding device 70 is in the fully closed state, first, the drive motor 74 is driven to rotate the rotating disk 73 via the gear 30. Here, the moving shaft 761 is arranged at the radially outer portion of the moving shaft sliding groove 801 by rotating the rotating disk 73. In addition, the moving shaft 762 and the moving shaft 763 are arranged in the radially inner portion of the moving shaft sliding groove 802. In addition, the moving shaft 764 is arranged at the radially inner part of the moving shaft sliding groove 804, and the moving shaft 765 is arranged at the radially inner part of the moving shaft sliding groove 805. As a result, as shown in Fig. 8(D), the moving shaft 765 is arranged at the inner portion in the radial direction, so that the cam 615 moves inward in the radial direction. Then, the rotation covering wall 715 rotatably connected to the cam 615 rotates radially outward with the vicinity of the rotation connection portion 68 as the center of rotation, and is in a closed state standing substantially at right angles to the main surface of the support base 63.

FIG. 9 shows the structure of the shielding device 70 in a fully open state. Fig. 9(A) is a view of the shielding device 70 in the fully open state viewed from the rear, Fig. 9(B) is a cross-sectional view taken along the line CC of Fig. 9(A), and Fig. 9(C) is a view of the fully open state of rotation from the rear Fig. 9(D) is an enlarged view of the main points of Fig. 9(B) of the drawings of the disk 73 and the like. Here, the fully open state refers to a state in which the communication between the blower 47 and the air path for supplying cold air is not covered by the rotation of the covering wall 71, and the cold air blown by the blower 47 is diffused to the surroundings.

9(A), the shielding device 70 does not hinder the flow of air from the blower 47 to the outside in the fully opened state. That is, in the fully open state, the cold air blown from the blower 47 to the shielding device 70 is not interfered by the rotating shielding wall 71, that is, rotating the shielding wall 711 to the rotating shielding wall 715, and is blown to the refrigerating compartment 15 and the freezing compartment 17. As shown in FIG. 9, in the fully opened state, the rotating covering wall 711 is in a lying state that is tilted outward in the radial direction, and the covering wall 712 is turned to the rotating covering wall 715 is in a lying state that is tilted inward in the radial direction.

9(B), in the fully opened state, the rotating covering wall 715 and the rotating covering wall 712 are in a horizontal state that is substantially parallel to the main surface of the support base 63. Since all the rotating covering walls 71 of the shielding device 70 are in the open state, there is no rotating covering wall 71 in the air path blown by the blower 47, so that the flow resistance of the air path can be reduced and the air volume of the blower 47 can be increased.

9(C), when the shielding device 70 is in the fully open state, the driving motor 74 is first driven to rotate the rotating disk 73 via the gear 30, so that each moving shaft 76 slides in the moving shaft sliding groove 80. Specifically, the moving shaft 761 is arranged in the radially inner portion of the moving shaft sliding groove 801. In addition, the moving shaft 762 and the moving shaft 763 are arranged on the radially outer portion of the moving shaft sliding groove 802. In addition, the moving shaft 764 is arranged at the radially outer part of the moving shaft sliding groove 804, and the moving shaft 765 is arranged at the radially outer part of the moving shaft sliding groove 805. As a result, as shown in FIG. 9(D), as the moving shaft 765 is arranged at the radially outer portion, the cam 615 moves to the radially outer portion. The rotating covering wall 715 connected to the upper end of the cam 615 and rotatable relative to it has the center of rotation near the rotating connecting portion 68, and it rotates and tilts inward in the radial direction. Roughly parallel state.

10 to FIG. 23, the method of switching the air path using the shielding device 70 configured as described above will be described.

Fig. 10 shows a state where only the cold air is supplied to the lower freezing compartment 19, Fig. 10(A) is a view of the shielding device 70 viewed from the rear, and Fig. 10(B) is a view of the rotating disk 73 viewed from the rear. FIG. 11 is a diagram of the state of the air passage when only cold air is supplied to the lower freezing compartment 19 when viewed from the rear. Fig. 12 shows a case where only cold air is supplied to the freezing compartment 17, Fig. 12(A) is a view of the shielding device 70 viewed from the rear, and Fig. 12(B) is a view of the rotating disk 73 viewed from the rear. FIG. 13 is a diagram of the state of the air passage when only cold air is supplied to the freezing compartment 17 as viewed from the rear. Fig. 14 shows a state in which only the cold air is supplied to the upper freezing compartment 18, Fig. 14(A) is a view of the shielding device 70 viewed from the rear, and Fig. 14(B) is a view of the rotating disk 73 viewed from the rear. FIG. 15 is a diagram of the state of the air path when only cold air is supplied to the upper freezing compartment 18 when viewed from the rear. Fig. 16 shows a state where cold air is not supplied, Fig. 16(A) is a view of the shielding device 70 viewed from the rear, and Fig. 16(B) is a view of the rotating disk 73 viewed from the rear. Fig. 17 is a diagram of the state of the air passage when the cold air is not supplied when viewed from the rear.

Fig. 18 shows a state where only cold air is supplied to the refrigerating compartment 15. Fig. 18(A) is a view of the shielding device 70 viewed from the rear, and Fig. 18(B) is a view of the rotating disk 73 viewed from the rear. FIG. 19 is a diagram of the state of the air passage when only cold air is supplied to the refrigerator compartment 15 when viewed from the rear. Fig. 20 shows a state where cold air is supplied to the upper freezing compartment 18 and the refrigerating compartment 15. Fig. 20(A) is a view of the shielding device 70 viewed from the rear, and Fig. 20(B) is a view of the rotating disk 73 viewed from the rear. FIG. 21 is a diagram of the state of the air passage when cold air is supplied to the upper freezing compartment 18 and the refrigerating compartment 15 when viewed from the rear. Fig. 22 shows a state where cold air is supplied to the entire freezing compartment 17 and the refrigerating compartment 15. Fig. 22(A) is a view of the shielding device 70 viewed from the rear, and Fig. 22(B) is a view of the rotating disk 73 viewed from the rear. FIG. 23 is a diagram of the state of the air passage when cold air is supplied to the entire freezing compartment 17 and the refrigerating compartment 15 when viewed from the rear.

In the following figures, clockwise is sometimes referred to as “clockwise”, and counterclockwise is sometimes referred to as “reverse direction”. Furthermore, in the following description, the radial direction and the circumferential direction of the rotating disk 73 are simply referred to as the radial direction and the circumferential direction.

10 and 11 show the state where cold air is supplied to the lower freezing compartment 19. FIG. 10(A) is a view of the shielding device 70 in this state when viewed from the rear, FIG. 10(B) is a view of the rotating disk 73 in this state when viewed from the rear, and FIG. 11 is a view of the rotating disk 73 in this state when viewed from the rear Diagram of the state of the wind road.

10 (A), in the case of only supplying cold air to the lower freezing compartment 19, the rotating covering wall 711, the rotating covering wall 712 and the rotating covering wall 715 are in the closed state, and the rotating covering wall 713 and the rotating covering wall 714 are in the open state . By setting it as this open-close state, it is possible to blow cold air only to the lower freezing compartment 19 by the blower 47.

10(B), the moving shaft 761 is arranged in the middle part of the groove portion 8011 of the moving shaft sliding groove 801. In addition, the moving shaft 762 is arranged at the opposite end of the groove 8022 of the moving shaft sliding groove 802, and the moving shaft 763 is arranged at the opposite end of the groove 8027. In addition, the moving shaft 764 is arranged at the forward end of the groove 8043 of the moving shaft sliding groove 804, and the moving shaft 765 is arranged at the reverse end of the groove 8052 of the moving shaft sliding groove 805.

At this time, by arranging the moving shaft 761 outside in the radial direction, the rotating covering wall 711 is in a closed state. In addition, by arranging the moving shaft 762 and the moving shaft 765 inside in the radial direction, the rotating covering wall 712 and the rotating covering wall 715 are in a closed state. In addition, by arranging the moving shaft 763 and the moving shaft 764 outside in the radial direction, the rotating covering wall 713 and the rotating covering wall 714 are in an open state.

Here, referring to FIG. 10(A), in this embodiment, the rotating covering wall 712 and the rotating covering wall 715 are in an open state by being tilted inward in the radial direction, so the rotating covering wall 712 and the rotating covering wall 715 and the blower 47 are sufficient Separate. With this configuration, between the rotating covering wall 712 and the rotating covering wall 715 and the blower 47, the cold air generated by the rotation of the blower 47 can pass through well.

11, when the shielding device 70 is in the state shown in FIG. 10, the rotating covering walls 713 and 714 are in an open state, so cold air is blown from the lower freezing compartment supply air path 53. The cold air that has flowed into the lower freezing compartment supply air passage 53 is blown out to the lower freezing compartment 19 shown in FIG. 2 through the blower outlet 34.

On the other hand, by rotating the covering walls 711, 712, and 715 in a closed state, cold air is not blown to the refrigerating compartment 15 and the upper freezing compartment 18 shown in FIG. 2.

FIG. 12 and FIG. 13 show a state where only cold air is supplied to the freezing compartment 17. Fig. 12(A) is a view of the shielding device 70 in this state when viewed from the rear, Fig. 12(B) is a view of the rotating disk 73 in this state when viewed from the rear, and Fig. 13 is a diagram of the rotating disk 73 in this state when viewed from the rear Diagram of the state of the wind road.

12(A), when only cold air is supplied to the freezing compartment 17, the rotating covering wall 711 is in the closed state, and the rotating covering walls 712, 713, 714, and 715 are in the open state. By setting it as this open-closed state, cold air|gas can be blown to the freezing compartment 17 shown in FIG. 2 by the blower 47.

Referring to FIG. 12(B), in this state, the state shown in FIG. 10(B) is shifted to a state in which the rotating disk 73 is rotated in the forward direction.

Specifically, the moving shaft 761 is arranged at the opposite end of the groove 8011 of the moving shaft sliding groove 801. In addition, the moving shaft 762 is arranged at the opposite end of the groove 8023 of the moving shaft sliding groove 802, and the moving shaft 763 is arranged at the middle of the groove 8028. In addition, the moving shaft 764 is arranged at the middle part of the groove 8043 of the moving shaft sliding groove 804, and the moving shaft 765 is arranged at the opposite end of the groove 8053 of the moving shaft sliding groove 805.

By setting in the above manner, the moving shaft 761 is arranged on the outer side in the radial direction, and the rotation covering wall 711 is maintained in the closed state. On the other hand, the moving shafts 762, 763, 764, and 765 are arranged outside in the radial direction, and the rotation covering walls 712, 713, 714, and 715 are in an open state.

Referring to Fig. 13, when the shielding device 70 is in the state shown in Fig. 12, by rotating the cover walls 712 and 715 in the open state, the cold air is blown to the upper freezer compartment supply air path 52, and is blown out through the blower outlet 34 as shown in Fig. 2 The upper freezer compartment 18. In addition, by turning the cover walls 713 and 714 also in the open state, the cold air is blown to the lower freezing compartment supply air path 53 and then blown out to the lower freezing compartment 19 shown in FIG. 2 through the blower outlet 34.

On the other hand, by rotating the covering wall 711 to be in the closed state, cold air is not blown to the refrigerating compartment 15.

FIG. 14 and FIG. 15 show a state where only the cold air is supplied to the upper freezing compartment 18. 14(A) is a view of the shielding device 70 in this state when viewed from the rear, FIG. 14(B) is a view of the rotating disk 73 in this state when viewed from the rear, and FIG. 15 is a view of the rotating disk 73 in this state when viewed from the rear Diagram of the state of the wind road.

14(A), when only the upper freezing compartment 18 shown in FIG. 2 is supplied with cold air, the rotating covering walls 711, 713, and 714 are in the closed state, and the rotating covering walls 712, 715 are in the open state. By setting it as this open/closed state, it is possible to blow cold air only to the upper freezing compartment 18 by the blower 47.

Referring to FIG. 14(B), in this state, the state shown in FIG. 12(B) is changed to a state in which the rotating disk 73 is rotated in the reverse direction.

Specifically, the moving shaft 761 is arranged at the forward end of the groove 8011 of the moving shaft sliding groove 801. In addition, the moving shaft 762 is arranged at the forward end of the groove 8021 of the moving shaft sliding groove 802, and the moving shaft 763 is arranged at the middle of the groove 8026. In addition, the moving shaft 764 is arranged at the forward end of the groove 8041 of the moving shaft sliding groove 804, and the moving shaft 765 is arranged at the forward end of the groove 8051 of the moving shaft sliding groove 805.

At this time, by arranging the moving shaft 761 outside in the radial direction, the rotating covering wall 711 is in a closed state. In addition, by arranging the moving shaft 762 and the moving shaft 765 outside in the radial direction, the rotating covering wall 712 and the rotating covering wall 715 are in an open state. Furthermore, by arranging the moving shaft 763 and the moving shaft 764 inside the radial direction, the rotating covering wall 713 and the rotating covering wall 714 are in a closed state.

15, when the shielding device 70 is in the state shown in FIG. 14, by rotating the covering walls 712 and 715 in the open state, the cold air is blown to the upper freezer compartment supply air path 52 and blown out to the upper freezer compartment 18 through the blower outlet 34 .

On the other hand, the rotating covering wall 711 is in the closed state, so cold air is not blown to the refrigerating compartment 15. In addition, the rotating covering walls 713 and 714 are also in the closed state, so cold air is not blown to the lower freezing compartment 19.

16 and 17 show the fully closed state where the shielding device 70 closes all the air passages. 16(A) is a view of the shielding device 70 in this state when viewed from the rear, FIG. 16(B) is a view of the rotating disk 73 in this state when viewed from the rear, and FIG. 17 is a view of the rotating disk 73 in this state when viewed from the rear Diagram of the state of the wind road.

16(A), in the fully closed state, the covering wall 711 is rotated until the rotating covering wall 715 is in the closed state. By setting it as this state, it is possible to prevent air from flowing into each air passage.

Referring to FIG. 16(B), in this state, the state shown in FIG. 14(B) transitions to a state in which the rotating disk 73 is rotated in the forward direction.

Specifically, the moving shaft 761 is arranged in the middle of the groove 8011 of the moving shaft sliding groove 801, the moving shaft 762 is arranged at the opposite end of the groove 8021 of the moving shaft sliding groove 802, and the moving shaft 763 is arranged at the groove 8026. The opposite end. In addition, the moving shaft 764 is arranged at the opposite end of the groove 8041 of the moving shaft sliding groove 804, and the moving shaft 765 is arranged at the opposite end of the groove 8051 of the moving shaft sliding groove 805.

At this time, by arranging the moving shaft 761 outside in the radial direction, the rotating covering wall 711 is in a closed state. In addition, the moving shafts 762 to 765 are arranged inside the radial direction, and the rotating covering walls 712 to 715 are in a closed state.

Referring to FIG. 17, when the shielding device 70 is in the state shown in FIG. 16, the rotating covering walls 711 to 715 are in the closed state, and no air is supplied to all the storage rooms. In other words, the cooling chamber 26 and each air passage can be covered by rotating the covering wall 71. Therefore, when heating the inside of the cooling chamber 26 during the defrosting process, it is possible to prevent the warm air inside the cooling chamber 26 from leaking to each storage room via each air path. In the present embodiment, the air passage can be covered with high airtightness by rotating the covering wall 71, and therefore the covering effect can be increased.

18 and 19 show a state where only cold air is supplied to the refrigerating compartment 15. Fig. 18(A) is a view of the shielding device 70 in this state when viewed from the rear, Fig. 18(B) is a view of the rotating disk 73 in this state when viewed from the rear, and Fig. 19 is a view of the rotating disk 73 in this state when viewed from the rear Diagram of the state of the wind road.

Referring to FIG. 18(A), when only cold air is supplied to the freezing compartment 15, the rotating covering wall 711 is in an open state, and the rotating covering walls 712 to 715 are in a closed state. By setting it as this open-close state, it is possible to blow only cold air|gas to the refrigerator compartment 15 by the blower 47 as mentioned later.

Referring to FIG. 18(B), in this state, the state shown in FIG. 16(B) transitions to a state in which the rotating disk 73 is rotated in the forward direction.

Specifically, the moving shaft 761 is arranged at the opposite end of the groove 8013 of the moving shaft sliding groove 801. In addition, the moving shaft 762 is arranged in the middle of the groove 8026 of the moving shaft sliding groove 802, and the moving shaft 763 is arranged at the opposite end of the groove 8029. In addition, the moving shaft 764 is arranged at the opposite end of the groove 8044 of the moving shaft sliding groove 804, and the moving shaft 765 is arranged at the opposite end of the groove 8056 of the moving shaft sliding groove 805.

At this time, by arranging the moving shaft 761 inside the radial direction, the rotating covering wall 711 is in an open state. In addition, the moving shafts 762 to 765 are arranged inside in the radial direction, and the covering wall 712 is rotated until the covering wall 715 is in a closed state.

Referring to FIG. 19, when the shielding device 70 is in the state shown in FIG. 18, by turning the cover wall 711 in the open state, cold air is blown to the refrigerating compartment supply air passage 51 and out to the refrigerating compartment 15 via the refrigerating compartment supply air passage 29. In addition, part of the cold air blown to the refrigerating compartment 15 can also be blown to the vegetable compartment 20. On the other hand, the covering walls 712 to 715 are closed by rotating, and cold air is not blown to the freezing compartment 17.

20 and 21 show a state where the shielding device 70 supplies cold air to the refrigerating compartment 15 and the upper freezing compartment 18. Fig. 20(A) is a view of the shielding device 70 in this state when viewed from the rear, Fig. 20(B) is a view of the rotating disk 73 in this state when viewed from the rear, and Fig. 21 is a view of the rotating disk 73 in this state when viewed from the rear Diagram of the state of the wind road.

20(A), when cold air is supplied to the refrigerating compartment 15 and the upper freezing compartment 18 shown in FIG. 2, the rotating covering walls 711, 712, 715 are in an open state, and the rotating covering walls 713, 714 are in a closed state. By setting it as this open-close state, it is possible to blow cold air to the refrigerating compartment 15 and the upper freezing compartment 18 by the blower 47.

Referring to FIG. 20(B), in this state, the state shown in FIG. 18(B) is changed to a state in which the rotating disk 73 is rotated in the reverse direction.

Specifically, the moving shaft 761 is arranged in the middle of the groove 8013 of the moving shaft sliding groove 801. In addition, the moving shaft 762 is arranged at the opposite end of the groove 8025 of the moving shaft sliding groove 802, and the moving shaft 763 is arranged at the opposite end of the groove 8028. In addition, the moving shaft 764 is arranged at the opposite end of the groove 8043 of the moving shaft sliding groove 804, and the moving shaft 765 is arranged at the opposite end of the groove 8055 of the moving shaft sliding groove 805.

At this time, by arranging the moving shaft 761 inside the radial direction, the rotating covering wall 711 is in an open state. At this time, by arranging the moving shafts 762 and 765 inside the radial direction, the rotation covering walls 715 and 715 are in an open state. On the other hand, by arranging the moving shafts 763 and 764 outside in the radial direction, the rotating covering walls 713 and 714 are in a closed state.

Referring to FIG. 21, when the shielding device 70 is in the state shown in FIG. In addition, by turning the covering walls 712 and 715 into the open state, the cold air is blown to the upper freezing compartment supply air path 52 and is blown out to the upper freezing compartment 18 through the blowing outlet 34. On the other hand, the rotating covering walls 713 to 714 are in a closed state, so cold air is not blown to the lower freezing compartment 19.

FIG. 22 and FIG. 23 show a fully open state in which cold air is supplied to both the refrigerating compartment 15 and the freezing compartment 17. FIG. 22(A) is a view of the shielding device 70 in this state when viewed from the rear, FIG. 22(B) is a view of the rotating disk 73 in this state when viewed from the rear, and FIG. 23 is a view of the rotating disk 73 in this state when viewed from the rear Diagram of the state of the wind road.

Referring to Fig. 22(A), when cold air is supplied to the refrigerating compartment 15 and the freezing compartment 17 shown in Fig. 2, the rotating covering walls 711, 712, 713, 714, and 715 are in an open state. By setting it as this fully open state, cold air can be blown to the refrigerating compartment 15 and the freezing compartment 17 by the blower 47 as mentioned later.

Referring to FIG. 22(B), in this state, the state shown in FIG. 20(B) is changed to a state in which the rotating disk 73 is rotated in the reverse direction.

The moving shaft 761 is arranged at the opposite end of the groove 8012 of the moving shaft sliding groove 801. The moving shaft 762 is arranged at the opposite end of the groove 8024 of the moving shaft sliding groove 802, and the moving shaft 763 is arranged at the middle of the groove 8028. In addition, the moving shaft 764 is arranged in the middle of the groove 8043 of the moving shaft sliding groove 804, and the moving shaft 765 is arranged at the opposite end of the groove 8054 of the moving shaft sliding groove 805.

At this time, by arranging the moving shaft 761 inside the radial direction, the rotating covering wall 711 is in an open state. In addition, the moving shafts 762 to 765 are arranged outside in the radial direction, and the rotation covering walls 712 to 715 are in an open state.

Referring to FIG. 23, when the shielding device 70 is in the state shown in FIG. 22, by rotating the covering wall 711 to open, the cold air is blown to the refrigerating compartment supply air passage 51, and the cold air is blown out to the refrigerating compartment through the refrigerating compartment supply air passage 29 15. In addition, by turning the covering walls 712 and 715 into the open state, the cold air is blown to the upper freezing compartment supply air path 52 and is blown out to the upper freezing compartment 18 through the blowing outlet 34. Furthermore, the rotatable covering walls 713 and 714 are in an open state, and the air passage 53 and the blower outlet 34 can be supplied through the lower freezing compartment to supply cold air to the lower freezing compartment 19.

As described above, the shielding device 70 of the present embodiment can switch the opening and closing states of the rotating shielding walls 711 to 715 by rotating the rotating disk 73 shown in FIG. 5. Therefore, in the axial direction of the blower 47, that is, the depth direction of the refrigerator 10, the member does not move. Therefore, the thickness of the shielding device 70 can be reduced. Furthermore, referring to FIG. 3, since the volume occupied by the shielding device 70 can be reduced, the internal volume of the refrigerator formed in the freezer compartment 17 in front of the shielding device 70 can be increased, and more objects to be frozen can be stored in the freezer compartment 17. in.

The present invention is not limited to the above-described embodiment, and various modifications can be implemented within a scope not departing from the gist of the present invention.

Description of reference signs

10 Refrigerator

11 Heat insulation box

12 Shell

13 Liner

14 Heat insulation material

15 Refrigerator

17 Freezer

18 Upper freezer compartment

19 Lower freezer

20 Vegetable Room

21 Insulation door

23 Insulation door

24 Insulation door

25 Insulation door

26 Cooling room

27 Air supply outlet

28 Return air outlet

29 Refrigerator supply air path

30 Gear

31 Freezer compartment supply air path

33 Blowing outlet

34 Blow Out

37 The vegetable room returns to the wind road

38 Return air outlet

39 Return air outlet

41 Frame

42 Heat insulation partition wall

43 Insulation partition wall

44 Compressor

45 Cooler

46 Defrost heater

47 Blower

48 Rotating link

50 wind road dividing wall

51 Supply air path for cold room

52 Supply air duct for the upper freezer compartment

53 Supply air path for the lower freezer compartment

54 Rotating link

55 Sales

56 Wind road dividing wall

58 Side wall

59 Opening part

60 Covering wall drive mechanism

61, 611, 612, 613, 614, 615 Cam

62 Cam storage section

63 Support base

64 Rotating link

65 Separator

66 Separator

67 front cover

68 Rotating link

69 Sales

70 Shading device

71, 711, 712, 713, 714, 715 Rotating covering wall

73 Rotating Disk

74 Drive motor

75 Rotation axis

76, 761, 762, 763, 764, 765 Moving axis

77 Gear Department

79 Rotating shaft sliding groove

80, 801, 802, 804, 805 Sliding groove of moving axis

8011, 8012, 8013 Ditch

8021, 8022, 8023, 8024, 8025, 8026, 8027, 8028, 8029 Ditch

8041, 8042, 8043, 8044 Ditch

8051, 8052, 8053, 8054, 8055, 8056 Ditch

100 refrigerator

101 Refrigerator

102 Freezer

103 Vegetable Room

104 Cooling room

105 dividing wall

106 Opening

107 blower

108 Cooler

109 Wind Road

110 blower cover

111 recess

113 Opening

114 Throttle

Claims (5)

1. A shielding device, characterized in that it is used to close the air path for blowing cold air inside the refrigerator, and the shielding device has:

   Rotate the covering wall to surround the blower from the outside in the radial direction; and

   Covering wall driving mechanism, which drives the rotating cover wall,

   The rotating covering wall opens the air passage by rotating to the inside in the radial direction to fall, and closes the air passage by rotating to the outside in the radial direction to stand up.
2. The shielding device according to claim 1, wherein the shielding device has:

   A disc-shaped rotating disc, which is formed with a sliding groove of the moving shaft;

   A cam formed with a moving shaft cooperating with the sliding groove of the moving shaft, and rotatably connected with the rotating covering wall; and

   Driving a motor, which rotates the rotating disk,

   Through the rotation of the rotating disk, the moving shaft slides in the sliding groove of the moving shaft, so that when the cam moves inward in the radial direction, the rotating covering wall closes the wind path;

   Through the rotation of the rotating disk, the moving shaft slides in the sliding groove of the moving shaft, whereby when the cam moves radially outward, the rotating covering wall opens the air path.
3. The shielding device according to claim 1, wherein the shielding device further has a support base formed with a cam receiving portion, the rotating cover wall is rotatably mounted to the support base, and the cam is oriented along a radius. It can be slidably received in the cam receiving portion.
4. The screening device according to any one of claims 1 to 3, wherein a space is formed between the blower and the rotating covering wall, and the space allows the rotating covering wall to fall radially inward.
5. A refrigerator, characterized in that it has:

   The refrigeration loop has a cooler that cools the air supplied to the storage room via the air path,

   The cooling chamber is formed with an air blowing port connected to the storage chamber, and the cooler is arranged in the cooling chamber,

   A blower which blows the air supplied from the blower to the storage room, and

   The shielding device according to any one of claims 1 to 4 that at least partially closes the wind path.

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