JP2006300472A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator allowing usage of a small fan, and capable of easily controlling a temperature in a housing chamber. <P>SOLUTION: A cooling air duct 10 is provided in a far side (a rear face side) of each housing chamber 2, 3, 4, and 5, and a cooler 11 and a cooler fan 16 is incorporated in the cooling air duct 10. Each far wall 12, 13, 14, and 15 of each housing chamber is provided between the cooling air duct 10 and each housing chamber 2, 3, 4, and 5, a cold air discharge opening is provided in each far wall 12, 13, 14, and 15, and blow fans 17-19 are attached to the cold air discharge opening. The number of blow fans 17-19 is selected in accordance with a required cold air capacity. The blow fans 17-19 are integrated with dampers 21-23 to be used as an air capacity control mechanism 20. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a refrigerator, and more particularly to a refrigerator whose interior is partitioned into a plurality of storage rooms.

  Today, refrigerators are widely used in general households. A typical form of refrigerator includes a refrigeration cycle composed of a compressor, a condenser, a decompressor, and a cooler, and is a forced convection type that cools the interior by introducing cool air generated by the cooler into the interior. Is.

  In general, such a forced convection type refrigerator is provided with a cold air outlet on the back side of a storage room for food or the like, and the cooler described above is installed in a cold air passage communicating with the outlet. A blower is provided in the cold air passage, and the air in the storage chamber is introduced into the cold air passage, passed through a cooler to cool the air, and then convected as cold air in the storage chamber.

  Moreover, as disclosed in Patent Document 1, many refrigerators for home use have compartments divided by function. FIG. 8 is a cross-sectional view of a conventional refrigerator described in Patent Document 1. As shown in FIG.

  In a home refrigerator, for example, as shown in FIG. 8, the refrigerator 100 is partitioned into four storage rooms such as a refrigerator room 101, a cold room 102, a freezer room 103, and a vegetable room 104. A plurality of cool air passages 106 are provided on the back side (back side) of each of the storage chambers, and openings (cold air discharge ports) 106, 107, 108, 109 are formed on the walls that partition the storage chambers and the cool air passages 105. Is provided. Although only a single cold air passage is shown in FIG. 8 because of the cross-sectional position in the drawing, there are many cases where the cold air passage 105 leading to each storage chamber is actually independent.

  Further, dampers 110, 111, 112, and 113 that are opened and closed by electric power are built in the cold air passage 105, and the cold air flowing through the cold air passage 105 is intermittently supplied to the respective storage chambers. The cool air passage 105 has the cooler 114 as described above, and a blower 115 is provided in the vicinity of the cooler 114. In the refrigerator 100 of the prior art, the blower 115 is one.

In the conventional refrigerator, the temperature of each storage is monitored, and the dampers 110 to 113 communicating with each storage are controlled to be opened and closed so that the temperature in the storage falls within a desired range, and cool air is discharged into the storage. .
JP 2000-205738 A

  In the conventional refrigerator, as described above, the cooler fan is provided in the cooling air passage. In the refrigerator of the prior art, there is one fan provided in the cooling air passage, and cold air is supplied to all the storage rooms by one fan. Also, since each storage chamber naturally has a different set temperature and volume, the frequency of operation of the air volume control mechanism that adjusts the air volume in each storage chamber varies. For this reason, it is not uncommon for air volume control mechanisms provided in a plurality of storage chambers to communicate simultaneously.

  Therefore, the cooler fan must be capable of generating a considerable amount of air so that cold air can be simultaneously supplied to a plurality of storage chambers.

  In addition, before and after the air flow control mechanism, the cooling air passage side must be maintained at a positive pressure compared to the storage chamber side, and the refrigerator is likely to be enlarged and the interval between the storage chambers tends to be increased. The air path distance becomes longer, and the cooler fan needs to have a considerable ability to generate static pressure.

  In addition, the cooler fan has a storage chamber farthest from the cooler even if a plurality of air flow control mechanisms are in communication with each other at the same time, even if only one air flow control mechanism is in communication. Those capable of generating a considerable air volume to the storage room (or the storage room where the supply of cool air is most difficult) are selected.

  Therefore, the refrigerator of Patent Document 1 must have a fan with a large air volume and a strong static pressure generation capability. In addition, a fan having a large air volume and a strong static pressure generation capacity is generally noisy, so it is necessary to take measures against noise. Such a fan is not only high-capacity, but also has noise countermeasures, so it is expensive.

  In addition, the selection of a fan capable of generating a considerable air volume to the storage room farthest from the cooler (or the storage room where the supply of cool air is most difficult) is based on the storage room (or a certain amount of cool air supply) somewhat close to the cooler. For an easy storage room), it can supply an air volume that is much larger than necessary, and it cannot be said that it is an optimal fan selection.

  An object of the present invention is to develop a refrigerator that can use a small fan and can easily control the temperature in a storage room, based on the problems of the prior art.

  In order to solve the above-described conventional problems, a refrigerator according to the present invention includes a plurality of storage chambers partitioned by wall surfaces, a cooler, a cooling air passage communicating the cooler and the storage chamber, and the cooling air. A cooler fan provided in the vicinity of the cooler in the passage, a plurality of blower fans, and a plurality of air volume control mechanisms, and a discharge port of a wall surface that partitions the blower fan between the storage chamber and the cooling air passage, or The refrigerator is characterized in that the air volume control mechanism is provided at the suction port, and the communication between the storage chamber and the cooling air passage can be interrupted.

  As a result, a small fan can be adopted, and the noise generated by the fan is small. Therefore, it can be configured at a lower cost than a conventional refrigerator using a cooler fan having a large air volume and a strong static pressure generation capability. Moreover, the optimal air volume can be supplied to each storage room.

  In addition, by having a plurality of air volume control mechanisms and enabling the communication between each storage room and the cooling air path to be intermittent, the air volume control mechanism closes the storage room that does not need to blow cool air, so In order to prevent the air in the chamber from being sucked into the cooling air passage side, the temperature of the storage chamber is also stabilized.

  The invention according to claim 1 includes a plurality of storage chambers partitioned by wall surfaces, a cooler, a cooling air passage communicating the cooler and the storage chamber, and the cooling air passage in the vicinity of the cooler. A cooler fan that is provided in the cooler and blows cool air around the cooler, a plurality of blower fans, and a plurality of air volume control mechanisms, and the outlet of the wall surface that partitions the blower fan between the storage chamber and the cooling air passage Or provided in the suction port, the air volume control mechanism is capable of interrupting communication between the storage chamber and the cooling air passage, whereby a small fan can be adopted. Since the generated noise is small, it can be constructed at a lower cost than a conventional refrigerator using a cooler fan having a large air volume and a strong static pressure generation capability. Moreover, the optimal air volume can be supplied to each storage room.

  In addition, by having a plurality of air volume control mechanisms and enabling the communication between each storage room and the cooling air path to be intermittent, the air volume control mechanism closes the storage room that does not need to blow cool air, so In order to prevent the air in the chamber from being sucked into the cooling air passage side, the temperature of the storage chamber is also stabilized.

  According to a second aspect of the present invention, in the configuration of the first aspect, at least one of the cooler fan and the blower fan operates simultaneously, and the cooler fan is a small one. In addition to this cooler fan, a blower fan attached to the discharge port on the wall of the storage room is simultaneously operated to supply cold air to the storage room far from the cooler (or a storage room where it is difficult to supply cool air). Thus, the cooler fan and the blower fan are configured in series in the cooling air passage, and sufficient cool air can be supplied to the storage chamber.

  According to a third aspect of the present invention, in the configuration of the first or second aspect, the blower fan is provided only in a storage chamber in which a necessary air volume cannot be obtained only by the air blow by the cooler fan. The cooler fan can be small, and the cooler fan can supply cool air to a storage room close to the cooler (or a storage room where the supply of cool air is easy to some extent). The number of blower fans used can be minimized.

  According to a fourth aspect of the present invention, in addition to the configuration according to any one of the first to third aspects, a storage chamber in which a necessary air volume cannot be obtained with only one blower fan, or sufficiently A plurality of the blower fans are provided in the storage room in which the cool air cannot be stirred, and the air volume to the storage room can be increased by providing the plurality of blower fans in parallel. Moreover, the ability to stir the air in the storage room can be improved, and the temperature distribution in the storage room can be made uniform.

  According to a fifth aspect of the present invention, in addition to the configuration according to any one of the first to fourth aspects, the blower fan is an axial flow fan, and the air volume control mechanism is integrated with the blower fan. The cost is reduced by using an axial fan from the viewpoint of cost and noise, and further integrating the air volume control mechanism.

  According to a sixth aspect of the present invention, in addition to the configuration according to any one of the first to fourth aspects, the blower fan is a sirocco fan, and the air volume control mechanism is provided integrally with the blower fan. The cost can be reduced by using a sirocco fan with an emphasis on static pressure and further integrating an air volume control mechanism.

  According to a seventh aspect of the present invention, in the configuration according to the fifth or sixth aspect, the air volume control mechanism is provided on the discharge side of the blower fan, and an air volume control mechanism using wind pressure is provided. It is possible to design in consideration of the movement of the wind or the adjustment of the wind direction by the air volume control mechanism.

  According to an eighth aspect of the present invention, in the configuration according to the fifth or sixth aspect, the air volume control mechanism is provided on the suction side of the blower fan, and the air volume control on the blowout side. By eliminating the air path resistance by the mechanism, uniform air blowing from the discharge surface is possible, and the air volume can be adjusted by the air volume control mechanism on the suction side.

  According to a ninth aspect of the present invention, in the configuration according to any one of the first to eighth aspects, the air volume control mechanism is provided between the storage chamber and the cooling air passage when the blower fan rotates. When the blower fan is stopped, the space between the storage chamber and the cooling air passage is blocked, and the storage chamber that does not need to blow cool air is closed by the air flow control mechanism. Thus, since the air in the storage chamber is prevented from being sucked into the cooling air passage side, the temperature of the storage chamber is also stabilized.

  The invention according to claim 10 is the configuration according to any one of claims 1 to 9, wherein the blower fan can change the number of rotations. Temperature control can be performed.

  According to an eleventh aspect of the present invention, in the configuration according to the tenth aspect, the air volume control mechanism changes the air volume according to the rotational speed of the blower fan, and the rotational speed of the fan and the air volume control. By adjusting the operation amount of the mechanism, more advanced temperature control of the storage chamber can be performed.

  The invention according to claim 12 is the configuration according to any one of claims 1 to 11, wherein the blower fan is driven based on a temperature detection sensor and a detected temperature in the blower fan or the air volume control mechanism. A drive circuit for performing the operation, and the air blower fan, the air flow control mechanism, or both the air blower fan and the air flow control mechanism operate autonomously without receiving an external control signal, and reduce wiring. In addition, it is not necessary to change the control board and control software when changing the number of fans used.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments.

(Embodiment 1)
1 is a side sectional view of a refrigerator according to Embodiment 1 of the present invention, and FIG. 2 is a front sectional view of the refrigerator shown in FIG.

  The refrigerator 1 of the present embodiment is divided into four storage rooms as shown in FIG. That is, the refrigerator 1 is divided into four chambers, and functions as a refrigerated storage chamber 2, a temperature switching storage chamber 3, a vegetable storage chamber 4, and a freezing storage chamber 5 from above.

  Each of the storage rooms 2 to 5 is provided with a door 6 and drawers 7, 8, and 9 on the front side, similarly to a known refrigerator. Moreover, each storage chamber 2-5 is covered with the heat insulation wall.

  On the back side (back side) of each of the storage chambers 2 to 5, a cooling air passage 10 formed of a heat insulating material such as polystyrene foam is provided in the same manner as a known refrigerator, and a cooler 11 is provided in the cooling air passage 10. Built in.

  The cooler 11 is connected to an inverter compressor, a condenser, and an expansion valve (not shown) to constitute a series of refrigeration cycles. The refrigeration cycle employed in the present embodiment employs an inverter compressor, the refrigerant evaporation temperature is variable, and the surface temperature of the cooler 11 can be changed. The refrigerator 1 of the present embodiment controls the temperatures of the storage chambers 2 to 5 by the cooling temperature of the cooler 11, the air blown by a fan, which will be described later, and the operation of the air volume control mechanism.

  The above-described cooling air passage 10 and each of the storage chambers 2 to 5 are partitioned by the back walls 12, 13, 14, and 15 of the storage chamber. A cooler fan 16 is provided near the cooler 11 in the cooling air passage 10. In the present embodiment, the cooler fan 16 is selected to be small and inexpensive although it cannot supply a sufficient amount of air to the storage chambers 2 and 3. By downsizing the cooler fan 16, the depth of the cooler 11 and the cooling air passage 10 around the cooler fan 16 can be reduced, and the back walls 14 and 15 of the storage chambers 4 and 5 are further provided on the back side. Thus, the volume of the storage chamber can be increased. The cooler fan 11 has a capability of supplying a sufficient amount of air to the storage chambers 4 and 5 near the cooler, and cool air is supplied to the storage chambers 4 and 5 by the cooler fan 11.

  In the present embodiment, each of the rear walls 12 to 15 is provided with a discharge port and a suction port, and among these, small air blowing fans 17, 18, and 19 are attached to the discharge ports of the rear walls 12 and 13. . Airflow to the storage chambers 2 and 3 that cannot be obtained only by the capacity of the cooler fan 16 is supplemented by the blower fans 17 to 19.

  The blower fans 17 to 19 are integrated with the dampers 21, 22, and 23 as the air volume control mechanism 20, respectively, and each damper is opened only when the individual blower fans are operated.

  Since the blower fans 17 to 19 suck the cool air in the cooling air passage toward the storage chamber, when any of the blow fans is rotated, the inside of the cooling air passage is in a negative pressure state. Therefore, if the blower fan in one chamber is rotating and the blower fan in the other storage chamber is stopped, the air in the storage chamber in which the blower fan is not rotating may be sucked to the cooling air passage side. . However, in the refrigerator according to the embodiment of the present invention, when the blower fans 17 to 19 are stopped, the air volume control mechanism 20 is also closed, so this phenomenon does not occur.

  Here, the case where it comprises only the ventilation fans 17-19 attached to the wall surface of each storage chamber, without attaching the cooler fan 16 is considered. If the structure of the cooling air passage has a very small air passage resistance, sufficient cooling air can be supplied to all the storage chambers. However, in general, the structure of the cooling air passage 10 has a certain degree of air passage resistance and is cooled. Cool air cannot be sufficiently circulated to a storage room far away from the vessel 11 (a storage room where it is difficult to supply cold air) with only a small blower fan.

  That is, by operating both the small cooler fan 16 and the small blower fans 17 to 19, cold air can be supplied to the respective storage chambers, and the fan noise is also reduced. In addition, if it is composed of multiple small fans, the cost of a single fan is low, and there is no need for noise countermeasures, and a conventional fan that uses a cooler fan with a large air volume and powerful static pressure generation capability is used. Compared with the refrigerator of this, it can comprise at low cost.

  The blower fans 17 to 19 do not necessarily have to be in the back wall of the storage chamber, but this structure has an advantage that the thickness of the cooling air passage 10 can be reduced. Of course, you may attach a ventilation fan to a suction inlet.

  In addition, two blower fans 17 and 18 are provided on the back wall 12 of the refrigerator storage chamber 2. The storage chamber 3 is provided with one blower fan 19. The number of blower fans per storage room is arbitrarily selected according to the required air volume or the situation of each storage room for agitation of cool air in the storage room.

  Moreover, the ventilation fans 17-19 can change a rotation speed arbitrarily. For example, if the amount of cool air required by the storage chamber 3 is small, the blower fan may be rotated at a low speed. As a result, noise and power consumption can be reduced.

  Next, an integrated structure of the blower fans 17 to 19 and the air volume control mechanism 20 will be described. The integrated structure of the blower fan and the air volume control mechanism 20 is arbitrary, but for example, the mechanisms shown in FIGS.

  FIG. 3 is a side cross-sectional view of a mechanism in which a damper is integrated as an axial flow fan and an air flow control mechanism according to the first embodiment of the present invention.

  The blower fans 17 to 19 are axial fans 31, and the dampers 21 to 23 are provided on the discharge side of the axial fan 31 as opening / closing plates 32 a, 32 b, and 32 c. One side of each of the opening / closing plates 32a to 32c is attached to the outer frame of the axial fan 31, and opens and closes around this attachment shaft.

  The opening and closing plates 32a to 32c are connected by a connecting plate 33, and the opening and closing plates 32a to 32c are configured to open and close at the same angle at the same time.

  Further, a rotating plate 34 is attached to one end of the connecting plate 33, and the rotating plate 34 is operated by a small motor 35. That is, the power of the small motor 35 is transmitted from the rotating plate 34 to the connecting plate 33, and the opening / closing plates 32a to 32c are opened and closed.

  In addition, the small motor 35 used as a drive source may use actuators, such as a solenoid and a shape memory alloy, and the open / close plates 32a to 32c may be configured to be opened by the wind pressure of the fan 31.

  FIG. 4 is a top cross-sectional view of a mechanism in which a damper is integrated as a sirocco fan and an air volume control mechanism according to Embodiment 1 of the present invention.

  The blower fans 17 to 19 are sirocco fans 41, and the dampers 21 to 23 are provided as opening / closing plates 42 at the discharge ports of the sirocco fans 41. One side of the opening / closing plate 42 is attached to the outer frame of the sirocco fan 41 and opens and closes around this attachment shaft. The mounting shaft is provided with a torsion coil spring 43 having a weak elastic force, and the opening / closing plate 42 is always closed when the fan is stopped.

  When the sirocco fan 41 is operated, air is blown from the discharge port of the sirocco fan 41, and the opening / closing plate 42 opens when the wind force applied to the opening / closing plate 42 exceeds the closing force of the torsion coil spring 43.

  Although the opening / closing plate 42 is configured to be opened by the wind pressure of the sirocco fan 41, an actuator such as a small motor, a solenoid, or a shape memory alloy may be used as a driving source.

  FIG. 5 is a view of a mechanism in which an iris shutter-shaped shutter is integrated as an air flow control mechanism on the suction side of the axial flow fan according to the first embodiment of the present invention, and FIG. 6 is a diagram of an iris shutter-shaped shutter. FIG.

  The blower fans 17 to 19 are axial fans 51, and the air volume control mechanism 20 is provided as an iris shutter-shaped shutter 52 at the suction port of the axial fan 51. A plurality of operating plates 54 are provided on the rotating plate 53, one end of the operating plate 54 is attached by a slide shaft 56 through a long hole 55, and the other end of the operating plate 54 is attached on a fixed plate 57 by a rotating shaft 58. Yes. When the operation plate 59 fixed to the rotating plate 53 is moved to the left, the shutter 52 is opened, and when the operation plate 59 is moved to the right, the shutter 52 is closed. The opening amount of the shutter 52 can be adjusted by the operation amount of the operation plate 59.

  The operation plate 59 is connected to the solenoid 61 through the connecting shaft 60. That is, the operation plate 59 is operated and the shutter 52 is opened and closed by the operation of the solenoid 61.

  In addition, the solenoid 61 used as the drive source may use an actuator such as a small motor or a shape memory alloy.

  When the air volume control mechanism is provided on the suction side in this manner, the air flow resistance by the air volume control mechanism on the blow-out side is eliminated, so that uniform air blowing from the discharge surface is possible and the air volume can be adjusted on the suction side. .

  FIG. 7 is a block diagram of a configuration in which a temperature detection sensor and a drive circuit are incorporated in the blower fan according to the first embodiment of the present invention.

  The blower fans 17 to 19 are autonomous control fans 71 incorporating a temperature detection sensor and a drive circuit. A temperature detection sensor 72 and a drive circuit 73 are incorporated in the autonomous control fan 71, the temperature detected by the temperature detection sensor 72 is detected by the temperature detection circuit 74 in the drive circuit 73, and the fan 75 is operated by the driver 75. The detection circuit 74 is configured by a filter circuit, a comparator (not shown), and the like, and the driver 75 is configured by a transistor (not shown).

  Moreover, it is desirable to operate the dampers 21-23 integrated with the blower fans 17-19 by this circuit.

  By adopting such a configuration, the blower fans 17 to 19 and the dampers 21 to 23 can operate autonomously without the need to receive a control signal from the outside. Wiring can be reduced to power supply only, and the control board and control software do not need to be changed when changing the number of fans used.

  In the configurations of FIGS. 3 to 7 above, the shape of the fan, the integration mechanism of the fan and the air flow control mechanism, and the combination of the drive source are arbitrary, and the most appropriate combination is selected according to the refrigerator system. It is desirable.

  Hereinafter, temperature control by the refrigerator 1 of the present embodiment will be described.

  The temperature of each of the storage chambers 2 to 5 is monitored by a temperature detection sensor (not shown) or a temperature detection sensor built in the blower fan as shown in FIG.

  For example, if the temperature of the storage chamber 3 rises, the compressor is started to lower the temperature of the cooler 11, the cooler fan 16 is rotated, the damper 23 of the storage chamber 3 is opened, and the blower fan 19 is rotated. Let At this time, the opening of the damper 23 and the operation of the blower fan 19 are synchronized so that the air in the storage room where the damper is not opened does not flow out.

  As a result, the suction side of the blower fan 19 becomes negative pressure, and the pressure on the cooling air passage 10 side decreases. Then, the temperature is lowered from the storage chamber 3 through an air passage (not shown) provided with a suction port, passes through the cooler 11, and cold air is blown into the storage chamber 3 from the blower fan 19. At this time, the dampers 21 and 22 of the storage chamber 2 are closed, and the air in the storage chamber 1 is not drawn into the cooling air passage 10.

  In addition, when both the storage chambers 2 and 3 exceed the set temperature and it is necessary to supply cold air, the dampers 21 to 23 may be opened and the blower fans 17, 18 and 19 may be rotated. Since there is a possibility that the air volume to each of the storage chambers may be insufficient by simultaneously supplying the cool air to the plurality of storage chambers, the cool air is preferentially supplied from the storage chamber having a large difference from the set temperature.

  If the temperature of the storage chambers 4 and 5 exceeds the set temperature, the dampers 21 to 23 are closed, and the cooler fan 16 is rotated while the blower fans 17 to 19 are stopped to supply cold air.

  In this embodiment, the storage chambers 4 and 5 are not provided with a blower fan and a damper, but this is because the storage chambers 4 and 5 are close to the cooler 11 and the blower fans 17 to 19 are rotating. This is because the air in the storage chamber is not drawn into the cooling air passage 10 by the cooling fan 11. Depending on the configuration of the refrigerator, it is necessary to attach a damper to the storage chambers 4 and 5.

  As described above, the refrigerator 1 of the present embodiment can employ a small fan, and noise generated by the fan is small. Therefore, it can be configured at a lower cost than a conventional refrigerator using a cooler fan having a large air volume and a strong static pressure generation capability. Moreover, the optimal air volume can be supplied to each storage room.

  In addition, by having a plurality of air volume control mechanisms and enabling the communication between each storage room and the cooling air path to be intermittent, the air volume control mechanism closes the storage room that does not need to blow cool air, so In order to prevent the air in the chamber from being sucked into the cooling air passage side, the temperature of the storage chamber is also stabilized.

  The present invention can be used for refrigerators for general household use and other uses. It can also be applied to air-conditioning-related products such as air conditioners and in-vehicle equipment.

Side surface sectional drawing of the refrigerator of Embodiment 1 of this invention Front sectional view of the refrigerator according to Embodiment 1 of the present invention. Side surface sectional drawing of the mechanism which integrated the axial flow fan of Embodiment 1 of this invention, and the damper as an airflow control mechanism 1 is a top sectional view of a mechanism in which a damper is integrated as a sirocco fan and an air volume control mechanism according to Embodiment 1 of the present invention. The figure which observed from the suction inlet side the mechanism which integrated the shutter of the iris shutter shape as an airflow control mechanism in the suction side of the axial fan of Embodiment 1 of this invention Detailed view of the iris shutter-shaped shutter according to the first embodiment of the present invention The block diagram of the structure which incorporated the temperature detection sensor and the drive circuit in the ventilation fan of Embodiment 1 of this invention. Side sectional view of a conventional refrigerator

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Refrigerated storage room 3 Temperature switching storage room 4 Vegetable storage room 5 Freezing storage room 6 Door 7, 8, 9 Drawer 10 Cooling air path 11 Cooler 12, 13, 14, 15 Back wall 16 Cooler Fan 17, 18, 19 Blower fan 20 Air flow control mechanism 21, 22, 23 Damper 31 Axial fan 32a, 32b, 32c Open / close plate 33 Connecting plate 34 Rotating plate 35 Small motor 41 Sirocco fan 42 Open / close plate 43 Torsion coil spring 51 Axial flow Fan 52 Shutter 53 Rotating plate 54 Actuating plate 55 Slot 56 Slide shaft 57 Fixed plate 58 Rotating shaft 59 Operation plate 60 Connecting shaft 61 Solenoid 71 Autonomous control fan 72 Temperature detection sensor 73 Drive circuit 74 Detection circuit 75 Driver

Claims (12)

  A plurality of storage chambers partitioned by wall surfaces, a cooler, a cooling air passage communicating the cooler and the storage chamber, and a cooler fan provided in the vicinity of the cooler in the cooling air passage; A plurality of blower fans and a plurality of air volume control mechanisms, wherein the air blower fans are provided at a discharge port or a suction port of a wall surface that partitions the storage chamber and the cooling air passage, and the air volume control mechanism includes the storage chamber and the cooling air source. A refrigerator characterized in that communication between air passages can be interrupted.   The refrigerator according to claim 1, wherein at least one of the cooler fan and the blower fan operates simultaneously.   The refrigerator according to claim 1 or 2, wherein the blower fan is provided only in a storage room where a necessary air volume cannot be obtained only by blowing air from the cooler fan.   The plurality of blower fans are provided in a storage room in which a necessary air volume cannot be obtained with only one blower fan, or in a storage room in which cool air cannot be sufficiently stirred. The refrigerator according to any one of 3.   The refrigerator according to any one of claims 1 to 4, wherein the blower fan is an axial fan, and the air volume control mechanism is provided integrally with the blower fan.   The refrigerator according to any one of claims 1 to 4, wherein the blower fan is a sirocco fan, and the air volume control mechanism is provided integrally with the blower fan.   The refrigerator according to claim 5 or 6, wherein the air volume control mechanism is provided on a discharge side of the blower fan.   The refrigerator according to claim 5 or 6, wherein the air volume control mechanism is provided on a suction side of the blower fan.   The air volume control mechanism communicates between the storage chamber and the cooling air passage when the blower fan rotates, and blocks between the storage chamber and the cooling air passage when the blower fan is stopped. The refrigerator as described in any one of Claims 1-8 characterized by these.   The refrigerator according to any one of claims 1 to 9, wherein the blower fan can change a rotation speed.   The refrigerator according to claim 10, wherein the air volume control mechanism changes the air volume according to the number of rotations of the blower fan.   The blower fan or the air flow control mechanism includes a temperature detection sensor and a drive circuit that drives the blower fan based on the detected temperature, and the blower fan, the air flow control mechanism, or both the blower fan and the air flow control mechanism. The refrigerator according to any one of claims 1 to 11, wherein the refrigerator operates autonomously without receiving an external control signal.

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