JP2001165551A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator capable of making a temperature in a storage chamber uniform and preventing a dew formation. SOLUTION: The refrigerator comprises a storage chamber 11 for containing a storage article, a cooler 21 for generating cold air flowing to the chamber 11, a cold air passage 28 having a rising passage 28b for allowing cold air to rise and a falling passage 28b for allowing the air passing the passage 28b to fall and introducing the air to the chamber 11 and provided at the chamber 11 through a partition wall, and a member 42 disposed in the passage 28a to form at least the part of the wall and to exhaust a cold heat by the air flowing through the passage 28 into the chamber 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator for sending cool air into a storage room.

[0002]

2. Description of the Related Art FIG. 9 is a partial side sectional view of a conventional refrigerator. The refrigerator 1 has an inner box 2b inside an outer box 2a covering the outside.
Are provided, and a gap between the outer box 2a and the inner box 2b is filled with a heat insulating material 2c such as polyurethane foam. The front surface of the refrigerator compartment 11 covered by the inner box 2b can be opened and closed by a rotary heat-insulating door 3.

[0003] An ice compartment 14, which is an isolation compartment, is provided below the refrigerator compartment 11, and a vegetable compartment 12 is arranged below the compartment. The front of the vegetable compartment 12 can be opened and closed by a sliding heat insulating door 4. The refrigerator compartment 11 and the vegetable compartment 12 are partitioned by partition plates 31 and 32 made of a resin molded product. The partition plate 32 is provided with a through hole 32a.

[0004] Behind the refrigerator compartment 11 and the ice warming compartment 14, cool air generated by a cooler (not shown) is blown by a blower (not shown).
The cold air passage 28 which is sent out and circulated is provided. The member 4 facing the cool air passage 28 is provided on the back of the refrigerator compartment 11.
2 are provided. Insulation material 36 is provided on the back of the ice greenhouse 14.
A rear plate 35 facing the cool air passage 28 is provided.

[0005] Cold air flows into the refrigerator compartment 11 through openings 42a and 36a provided in the member 42 and the heat insulating material 36.
The inside of the refrigerator compartment 11 is cooled. Then, the cool air descends by its own weight, and forms an airflow that flows into the vegetable compartment 12 through the cool air passage 30 from the through hole 32a. Thereby, the interior of the vegetable compartment 12 is cooled.

The member 42 is made of a metal plate or the like, and transmits cold heat generated by the cool air flowing through the cool air passage 28 to transmit the cold
It is designed to be released inside. Therefore, the refrigerator compartment 11 is uniformly cooled by the cool heat released from the entire surface of the member 42. Further, while the cooler is stopped, the stored cold heat is released to keep the refrigerator compartment 11 cool.

[0007]

However, according to the above-mentioned conventional refrigerator, although the refrigerator 11 is cooled by the cool heat released from the entire surface of the member 42, the amount of cold air flowing through the cool air passage 28 is increased. In some cases, the temperature difference between the inside of the refrigerator compartment 11 and the inside of the cold air passage 28 increases. Thereby, dew condensation occurs on the surface of the member 42 on the side of the refrigerator compartment 11. As a result, there is a problem in that the inside of the refrigerator compartment 11 dries and foods and the like stored in the refrigerator compartment 11 deteriorate quickly.

Further, since the pressure of the cool air sent into the cool air passage 28 by the blower fluctuates, if the amount of cool air flowing through the cool air passage 28 is reduced to prevent dew condensation, the cool air may not flow. For this reason, there is a problem that the amount of cold heat released into the refrigerator compartment 11 varies, and the temperature in the storage compartment becomes uneven.

It is an object of the present invention to provide a refrigerator capable of making the temperature in a storage room uniform and preventing dew condensation.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a storage room for storing a storage object, a cooler for generating cool air flowing into the storage room, and a rising passage for rising the cool air. A cool air passage that has a descending passage through which the cool air passing through the ascending passage descends and guides the cool air to the storage chamber; and a cool air that is disposed in the descending passage and circulates through the descending passage. And a member that discharges into the storage chamber.

According to this configuration, the cool air generated by the cooler rises in the ascending passage, then descends in the descending passage and flows into the storage room. Then, the cold heat generated by the cold air passing through the descending passage is transmitted to the heat conductive member having heat conductivity, and the cold heat is uniformly discharged from the entire surface of the member into the storage chamber.

According to the present invention, in the refrigerator having the above-described structure, the refrigerator passes through a storage room for storing a storage item, a cooler for generating cool air flowing into the storage room, an ascending passage through which cool air rises, and the ascending passage. A cool air passage that has a descending passage through which the cool air descends and guides the cool air to the storage chamber and is provided through the storage chamber and the partition wall, and is disposed in the descending passage and at least a part of the partition wall. And a member for discharging cold heat generated by cold air flowing through the descending passage into the storage chamber.

According to this configuration, the cool air generated by the cooler rises in the ascending passage, then descends in the descending passage and flows into the storage room. Then, the cold heat generated by the cool air passing through the descending passage forms a partition with the storage room and is transmitted to the heat conductive member having thermal conductivity, and the cold heat is uniformly discharged from the entire surface of the member into the storage room.

Further, according to the present invention, in the refrigerator having the above structure, the cooling passage is arranged behind the storage room, and cool air is discharged to a lower portion of the descending passage arranged substantially at the center of the storage room in the lateral direction. An opening is provided. According to this configuration, the cool air passing through the descending passage flows into the storage chamber from a lower portion substantially at the center of the storage chamber in the left-right direction.

According to the present invention, in the refrigerator having the above structure, the rising passage is disposed on both sides of the descending passage, and a discharge port for discharging cool air from the rising passage into the storage chamber is provided by the rising passage and the descending passage. And at substantially the center of the side wall of the storage room. According to this configuration, the cool air rising in the ascending passage arranged between the side wall of the storage room and the descending passage flows into the storage room from the discharge port.

Further, the present invention is characterized in that in the refrigerator having the above structure, the discharge port is provided at a lower portion of a branch passage branching downward from the rising passage. According to this configuration, the cool air rising in the rising passage descends in the branch passage and flows into the storage chamber from the discharge port.

The present invention also relates to a refrigerator having the above-mentioned structure, wherein a ceiling duct through which cool air flows from an upper end of the rising passage is provided at a ceiling of the storage room, and a plurality of ceiling discharges for discharging the cool air toward the storage room. The parts are provided separately on the left and right of the ceiling duct. According to this configuration, the cool air that rises in the ascending passage provided on both sides of the descending passage flows into the descending passage and the ceiling duct. The cool air passing through the ceiling duct is dispersed right and left from the ceiling discharge portion and flows into the storage room.

According to the present invention, in the refrigerator having the above-described structure, the heat-insulating member extends the member facing the ascending passage and separates the member from the ascending passage through a gap communicating with the descending passage. It is characterized by having provided. According to this configuration, cold heat is transmitted to the member facing the descending passage by the cool air passing through the descending passage. Most of the cool heat from the cool air passing through the ascending passage is not transmitted to the portion of the member extending toward the ascending passage by the heat insulating member, and the cool heat of the cool air entering the gap from the descending passage is transmitted.

According to the present invention, in the refrigerator having the above-described structure, the member and the heat insulating member are detachable.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. For convenience of explanation, the same parts as those in the conventional example of FIG. 9 are denoted by the same reference numerals. FIG. 1 is a side sectional view showing a refrigerator according to an embodiment. The refrigerator 1 is provided with an inner box 2b inside an outer box 2a covering the outside, and a gap between the outer box 2a and the inner box 2b is filled with a heat insulating material 2c such as polyurethane foam. The interior of the refrigerator 1 is divided into a refrigerator compartment 11, a vegetable compartment 12, and a freezer compartment 13 in this order from above.

The vegetable compartment 12 and the freezing compartment 13 are divided into a partition frame 17 made of a heat insulating material and a partition plate 19 made of a heat insulating material. The freezing compartment 13 is further divided into an upper portion and a lower portion by a partition frame 18 made of a heat insulating material. Have been. Refrigerator room 11 and vegetable room 1
2 is partitioned by a partition frame 16 made of a heat insulating material and partition plates 31 and 32 made of a resin molded product. Partition plate 32
Is provided with a through hole 32a.

At the lower part of the refrigerator compartment 11, there is provided an ice temperature compartment 14, which is an isolation compartment partitioned by a partition plate 46. The refrigerator compartment 11 is provided with a plurality of shelves 45. The front surface of the refrigerator compartment 11 can be opened and closed by a rotary heat-insulating door 3.
The upper part of the vegetable compartment 12, the upper part of the freezer compartment 13, and the lower part of the freezer compartment 13 can be opened and closed by sliding-type heat-insulating doors 4, 5, 6 respectively, so that the storage containers 54, 55, 56 can be drawn out. ing.

A compressor 20 is arranged at the rear of the freezer 13. A condenser (not shown) is connected to the compressor 20 via a discharge pipe 20a, and a cooler 21 is connected via a suction pipe 20b. Condenser and cooler 21
Are connected via a capillary tube (not shown).

Thus, a refrigeration cycle is formed, and when the refrigeration cycle operation is performed, the cooler 21 is cooled. A defrost heater 62 for defrosting the cooler 21 is provided below the cooler 21. 64 is a drain receiving member.

The cooler 21 is disposed in the cool air passage 23, and a lower portion of the cool air passage 23 is formed by the inner box 2b and an evaporative cover 33 made of a resin molded product. Cold air passage 2
A blower 22 is arranged above the cooler 21 in 3. The cool air passage 23 is provided at the inlet 1 provided in the back plate 33a.
It communicates with the freezing room 13 by the outlet 13b provided in 3a, 13c and the outlet cover 33b.

The cool air passage 23 communicates with a cool air passage 28 disposed above the blower 22 through a damper 65.
The lower part of the cool air passage 28 is formed by the heat insulating member 36 fixed to the back plate 35 of the ice temperature chamber 14 and the inner box 2b.
The upper part of the cold air passage 28 is formed by a member 42 forming the inner wall of the refrigerator compartment 11 and a back plate 70 provided on the inner box 2b. The back plate 70 is formed integrally with the back plate 35.

FIG. 2 is a front view of the refrigerating compartment 11, and the cool air passage 28 has a descending passage 28a disposed substantially at the center and an ascending passage 28b branched on both sides of the descending passage 28a. A rib 28d serving as a partition for the descending passage 28a and the ascending passage 28b is formed integrally with the back plate 70.

The lower passage 28a is closed at the lower part so that cold air from the cool air passage 23 does not directly enter the lower passage 28a, and communicates with the ascending passage 28b through a communication hole 28g. An opening 4 opening toward the refrigerator compartment 11 is provided at the lower end of the descending passage 28a.
2a is provided. The cool air passing through the cool air passage 28 rises up the ascending passage 28b, is guided to the descending passage 28a, descends the descending passage 28a, and flows into the refrigerator compartment 11 through the opening 42a.

Openings 35a and 36a are provided at the same position in the back plate 35 and the heat insulating member 36. In addition, openings 35c and 36c (36c is not shown) are provided through a branch passage 28h that branches downward from the ascending passage 28b. The ice temperature chamber 14 communicates with the cool air passage 28 by the openings 35a, 36a, 35c, 36c.

The member 42 is formed of a heat conductive member having a heat conductivity having a shape as shown in FIG. 4 (for example, an aluminum alloy or stainless steel having good workability and a high rust prevention effect). This enables cold storage and release of cold heat. When the thickness of the heat conducting member is large, the cold storage capacity increases and the strength also increases. When the thickness is small, the efficiency of discharging cold heat increases, which is advantageous for weight reduction. Therefore, a thin plate or a thick plate may be selected and provided at an appropriate time in accordance with the purpose.

If the surface of the member 42 is provided with an uneven shape by press working or the like, the surface area can be increased. As a result, the amount of cold storage or the release of cold heat increases, and the cooling efficiency can be improved. Further, the strength of the member 42 can be reinforced by providing the concave or convex portions that are linearly continuous.

FIGS. 6 and 7 show detailed cross-sectional views of the upper and lower ends of the member 42. FIG. According to these figures, the member 42 is locked by the upper mounting portion 71 provided on the back plate 70 and the lower mounting portion 72 provided on the back plate 35. Upper mounting part 71
When the lever 71a is pushed up by a finger, the engagement of the claw 71b is released.

In this state, the member 42 can be detached by lowering the upper part of the member 42 to the front and pulling it upward, and the member 42 is detachable. Thereby, the cool air passage 2
The cleaning of the cold air passage 28 side of the member 8 and the member 42 can be easily performed. The lower part of the member 42 is sealed by a seal member 73 fixed to the heat insulating member 36.

The lower end of the member 42 may be configured as shown in FIG. That is, the locking portion 4 is attached to the lower end of the member 42.
2b is formed, and an opening 35d is formed in the back plate 35.
Then, the member 42 is locked by engaging the locking portion 42b with the opening 35d. The opening 35d is covered and sealed by the heat insulating member 36. Thereby, the above-mentioned sealing material 73 can be omitted.

FIG. 3 shows a sectional view of the upper part of the refrigerator compartment 11. The member 42 is provided with an extending portion 42 f extending to a portion facing the ascending passage 28 b. A heat insulating member 28c is disposed on a surface of the extending portion 42f on the side of the rising passage 28b with a gap 28f interposed therebetween. When the member 42 is detached, the heat insulating member 28c can be removed.

The cold generated by the cool air passing through the descending passage 28a is transmitted to the member 42, and much of the cold generated by the cool air passing through the upward passage 28b is not transmitted to the member 42 by the heat insulating member 28c. The extension 42f facing the ascending passage 28b is configured to transmit cold heat by cool air entering the gap 28f from the descending passage 28a.

The side wall 70f of the ascending passage 28b is
And a plurality of openings 7 in the side wall 70f.
0a is provided. The rear plate 70 is formed with a wall portion 70c that covers the outer periphery of the member 42. Wall 70
A plurality of ejection portions 70b communicating with the opening 70a are recessed in c. Therefore, the discharge unit 70b and the opening 70a
, The rising passage 28b communicates with the refrigerator compartment 11 so that cold air can be discharged into the refrigerator compartment 11.

In FIG. 2, the wall 70c is formed near the same height as the shelf 45 mounted on the mounting portion 74.
The food or the like placed on the shelf 45 (see FIG. 1)
b does not fall. And the opening 70
a has a slit shape so that the stored material does not fall into the rising passage 28b. Further, a rib 70d for guiding cool air to the discharge portion 70b is formed on the back plate 70.

A ceiling duct 54 is formed at the ceiling of the refrigerator compartment 11 by the upper plate 43 made of a resin molded product and the inner box 2b. The ceiling ducts 54 are arranged side by side on the left and right, and communicate with the ascending passage 28b to guide cool air. Then, a plurality of ceiling discharge portions 43a provided in the front-rear direction of the upper surface plate 43 disperse the cool air left and right and discharge the cool air.

Since the cool air is diffused right and left by the branched ascending passage 28b before flowing into the ceiling duct 54, the cool air can be sufficiently cooled from the ceiling discharge portion 43a provided near the back wall of the refrigerator compartment 11. Is discharged. Note that an illumination lamp 51 covered with a transparent illumination cover 53 is provided between the left and right ceiling ducts 54.

In the refrigerator 1 having the above configuration, the blower 22
Is driven, the air in the freezing compartment 13 is guided to the cool air passage 23 from the outlet 13b. The air is cooled by exchanging heat with the cooler 21 and flows into the freezing compartment 13 through the inlet 13a. Thereby, the inside of the freezing room 13 is cooled.

The cool air that has exchanged heat with the cooler 21 flows through the cooling passage 28 via the damper 65. Part of the cold air flows into the ice warming chamber 14 through the openings 35a and 36a. Further, a branch passage 28h branched from the ascending passage 28b.
Cool air passing through the openings 35c, 36c (36c is not shown)
Flows into the ice greenhouse. Thus, the inside of the ice greenhouse 14 is cooled to, for example, -1 ° C. Since the cool air entering the branch passage 28h descends by its own weight, it is possible to prevent the cool air in the slightly hot ice temperature chamber 14 from flowing backward from the opening 35c.

The other cool air branches off the left and right ascending passages 28b and proceeds. The cool air passing through the ascending passage 28b is guided by the rib 70d and is discharged from the discharge portion 70b into the refrigerator compartment 11. The cool air that enters the descending passage 28a through the communication hole 28g and descends is discharged into the refrigerator compartment 11 through the opening 42a. The cool air entering the ceiling duct 54 from the ascending passage 28b is discharged from the ceiling discharge portion 43a in a distributed manner to the left and right.

A part of the cold generated by the cool air flowing through the descending passage 28a is transmitted to the member 42. Then, a small amount of cool air flows into the gap 28f. At this time, the heat insulating member 28
Cold heat is transmitted to the extending portion 42f of the member 42 facing c by cold air passing through the gap 28f. Then, the heat is released from the entire surface of the member 42 into the refrigerator compartment 11 as cold heat. Therefore,
The cooling heat from the member 42, the discharge part 70b and the ceiling discharge part 4
3a and the cold air dispersed and discharged from the
The inside is efficiently and uniformly cooled.

The air in the refrigerator compartment 11 is supplied between the shelves 45 and between the shelves 45.
, Flows through the cold air passage 30 from below the ice temperature chamber 14 through the opening 32 a, and flows into the front of the vegetable room 12. Furthermore, it passes from the front of the storage container 54 to the lower side, and
2 is cooled. Then, cool air is circulated from an outlet (not shown) through a duct (not shown) to a lower portion of the cooler 21.

The compressor 20 and the blower 22 are operated and stopped based on the detection result of the refrigerator compartment temperature detector (not shown) for detecting the temperature in the refrigerator compartment 11, and the temperature of the refrigerator compartment 11 and the vegetable compartment 12 is, for example, It is maintained at 3 ° C.

According to the present embodiment, a part of the cold heat of the cool air passing through the descending passage 28a and the gap 28f conducts heat through the member 42 functioning as a heat conducting plate, and is discharged into the refrigerator compartment 11 from the entire surface of the member 42. . Therefore, the refrigerating room 11 is in the descending passage 2
8a and the ascending passage 28b are uniformly cooled by the cool heat uniformly discharged from a wide area covering the ascending passage 28b.

At this time, since a large amount of cold heat is not transmitted from the cool air passing through the rising passage 28b to the member 42 by the heat insulating member 28c, the amount of cold heat transferred to the member 42 when a large amount of cool air flows through the cool air passage 28 is reduced. It is limited, and the condensation of the member 42 can be prevented. Then, by varying the area and thickness of the heat insulating member 28c, cold air at a desired temperature and flow rate can be circulated.

When the temperature of the cool air passing through the cool air passage 28 is low, or when the cooling capacity of the cool air is increased, for example, when the flow rate of the cool air is increased, the cooling of the member 42 by the cool air is moderated and the members near the descending passage 28a are reduced. In order to prevent dew condensation on the refrigerator compartment 11 side of 42, a thin heat insulating member may be provided also on the member 42 side of the descending passage 28a.

Further, the cool heat transmitted from the cool air passing through the ascending passage 28b and passing through the descending passage 28a is released from the member 42. For this reason, it is sent to the blower 22 and the cold air passage 2
Although the pressure of the cool air immediately after entering into 8 has fluctuated to form a pulsating flow, the cool air passing through the descending passage 28a through the communication hole 28g is reduced in pressure and rectified. Thus, even when the amount of cold air is small, the amount of cold heat released into the refrigerator compartment 11 is stabilized, and the temperature in the storage compartment can be made uniform.

The discharge section 70b and the ceiling discharge section 43a
Are provided on the back and upper surfaces of the refrigerator compartment 11, so that the cool air is dispersed and flows into the refrigerator compartment 11. Therefore, the refrigerator compartment 11 is cooled uniformly and quickly.

Here, as shown in FIG. 5, the member 42 may be a cold storage member in which a jelly-like or liquid cold insulator 42c is enclosed by packaging materials 42d and 42e. By doing so, the member 42 is stored more cold by the cool heat of the cool air flowing through the cool air passage 28, and discharges as cool heat according to the temperature distribution in the refrigerator compartment 11. Therefore, the refrigerator compartment 11 is cooled uniformly.

Further, the cool storage member absorbs heat and dissipates heat when the compressor 20 is stopped and fluctuations in the temperature of the cool air in the cool air passage 28, so that the cool air temperature in the cool air passage 28 can be maintained. At this time, since the cold storage member forms the inner wall of the refrigerator compartment 11, the space of the refrigerator compartment 11 can be widened, and the space of the refrigerator 1 can be saved. It is more desirable that the packaging materials 42d and 42e be made of a thermally conductive aluminum alloy or stainless steel.

[0054]

According to the present invention, the cooling heat from the cool air passing through the ascending passage is not transmitted to the member, but is transmitted mainly from the cool air flowing through the descending passage. For this reason, the amount of cold heat transmitted to the members is limited by the temperature rise of the cool air generated from the rising passage to the descending passage and partial discharge into the storage chamber. Thereby, even when the cooling capacity is improved by flowing a low temperature or a large amount of cold air through the cold air passage, the storage chamber is uniformly cooled by the cold heat uniformly discharged from the member, and condensation of the member is reduced. Can be prevented.

Further, the pressure of the cool air immediately after entering the cool air passage by sending out the blower fluctuates and becomes a pulsating flow.
The pressure is reduced until cool air is discharged from the ascending passage through the descending passage into the storage chamber, so that rectification occurs. This stabilizes the amount of cold heat released into the storage room and makes the temperature in the storage room uniform.

According to the present invention, the discharge port through which the cool air is discharged from the ascending passage is provided substantially at the center of the descending passage, the ascending passage partition wall, and the partition wall of the ascending passage arranged substantially at the center in the left-right direction. Therefore, the storage room is uniformly cooled by the cool heat discharged from the descending passage to the approximate center in the left-right direction and the cool air discharged from the discharge port.

Further, according to the present invention, by providing the discharge port through the branch path that branches downward from the rising path, the cool air entering the branch path is discharged by descending by its own weight, and is returned from the discharge port. Can be prevented.

Further, according to the present invention, since the ceiling ducts communicating with the ascending passages provided on both sides of the descending passages are provided with the ceiling discharge ports which are distributed to the left and right, the cool air flows to the left and right before entering the ceiling duct. Distributed. Therefore, even if the ceiling discharge port is provided near the back wall of the storage room, the discharge can be performed into the storage room, and the temperature can be made uniform in the depth direction of the storage room.

Further, according to the present invention, since the member is extended to face the ascending passage and the heat insulating member for isolating the member and the ascending passage from each other through the gap communicating with the descending passage is provided. The small amount of cold generated by the cold air can be transmitted to the member and released from a large area covering the ascending passage and the descending passage. Thereby, the temperature in the storage room can be made more uniform.

Further, according to the present invention, since the member and the heat insulating member are detachable, the cold air passage and the cold air passage side of the member and the heat insulating member can be easily cleaned, and the cool air discharged into the storage chamber can be cleaned. Can be held.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a refrigerator according to an embodiment of the present invention.

FIG. 2 is a front view of a refrigerator room of the refrigerator according to the embodiment of the present invention.

FIG. 3 is a top sectional view of the refrigerator according to the embodiment of the present invention.

FIG. 4 is a perspective view showing members of the refrigerator according to the embodiment of the present invention.

FIG. 5 is a perspective view showing another member of the refrigerator according to the embodiment of the present invention.

FIG. 6 is a sectional view of a main part showing a method of attaching the upper end of the member of the refrigerator according to the embodiment of the present invention.

FIG. 7 is a sectional view of a main part showing a method of attaching a lower end of the member of the refrigerator according to the embodiment of the present invention.

FIG. 8 is a fragmentary cross-sectional view showing another method of attaching the members of the refrigerator according to the embodiment of the present invention.

FIG. 9 is a front sectional view of a conventional refrigerator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator 2a Outer box 2b Inner box 3, 4, 5, 6 Insulated door 11 Refrigerator room 12 Vegetable room 13 Freezer room 14 Ice warm room 20 Compressor 21 Cooler 22 Blower 23, 28, 30 Cold air passage 28a Descending passage 28b Ascending passage 28c Heat insulating member 28f Gap 36 Heat insulating member 42 Member 42a Opening 42f Extension 51 Lighting 53 Lighting cover 54 Ceiling duct 61, 62 Defrosting heater 65 Damper 70 Rear plate 70b Discharge unit

Claims (8)

[Claims] 1. A storage room for storing stored goods, a cooler for generating cool air flowing into the storage room, an ascending passage through which the cool air rises, and a descending passage through which the cool air passing through the ascending passage descends. A cooling air passage that guides the cold air to the storage chamber; and a member that is disposed in the descending passage and that discharges cold generated by cold air flowing through the descending passage into the storage chamber. refrigerator. 2. A storage room for storing stored goods, a cooler for generating cool air flowing into the storage room, an ascending passage through which the cool air rises, and a descending passage through which the cool air passing through the ascending passage descends. And guiding the cool air to the storage chamber, and arranging the cool air passage provided through the storage chamber and the partition wall in the descending passage and forming at least a part of the partition wall to circulate through the descending passage. A member for discharging cold heat generated by the cold air into the storage chamber. 3. The cooling passage is disposed behind the storage compartment, and an opening for discharging cool air is provided at a lower portion of the descending passage disposed substantially at the center in the lateral direction of the storage compartment. The refrigerator according to claim 1 or 2, wherein 4. The rising passage is arranged on both sides of the descending passage, and a discharge port for discharging cool air from the rising passage into the storage chamber is formed by partitions of the rising passage and the descending passage, and a side wall of the storage room. 4. The device according to claim 3, wherein the first portion is provided substantially at the center of the third portion.
A refrigerator according to claim 1. 5. The refrigerator according to claim 4, wherein the discharge port is provided at a lower portion of a branch passage that branches downward from the rising passage. 6. A ceiling duct through which cool air flows in from the upper end of the ascending passage at a ceiling of the storage room, and a plurality of ceiling discharge units for discharging the cool air toward the storage room are distributed on right and left sides of the ceiling duct. The refrigerator according to claim 4 or 5, wherein the refrigerator is provided. 7. A heat-insulating member which extends the member facing the ascending passage and which isolates the member from the ascending passage through a gap communicating with the descending passage. The refrigerator according to any one of claims 1 to 6. 8. The refrigerator according to claim 7, wherein the member and the heat insulating member are detachable.