JP2001221554A - refrigerator - Google Patents

Abstract

(57) [Problem] To provide a refrigerator capable of uniformly cooling a stored item in a storage room by making the temperature distribution in the storage room substantially uniform. A cold air passage (28a) for guiding cool air to a refrigerator compartment (11).
Is provided, and a part of the cold heat generated by the cool air flowing through the cool air passage 28a from the member 42 is provided to the refrigerator compartment 11.
And the inside of the refrigerator compartment 11 is cooled, and at least a part of the cool air is caused to flow along the surface of the member 42 by the discharge member 7 provided substantially at the center of the member 42.

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 A conventional refrigerator of this kind is disclosed in
As disclosed in Japanese Patent No. 5338, a branch flow provided with a cooler provided below the refrigerator compartment and a blower duct provided at the back of the refrigerator compartment, and the inside of the blower duct is branched into a plurality of flow paths. Flow cool air upward from below in the path, at least one flow path, provided a cool air outlet only in the upper part of the refrigerator compartment,
There is one configured to blow cool air from the cool air outlet toward the refrigerator compartment.

[0003]

However, in such a conventional refrigerator, it is difficult for cold air to reach the center of the back wall of the refrigerator compartment, the lower portion thereof, and the vicinity of the side wall, and the uniformity of the temperature distribution in the refrigerator compartment is lacking. In particular, when the refrigerating room is divided into a plurality of spaces by a shelf plate, there is a problem that the temperature variation in the refrigerating room becomes more remarkable. In addition, the moisture in the refrigerator compartment may condense on the back wall and water droplets may adhere, but there is a problem that the water droplets flow down the back wall as it is and water accumulates on the bottom plate of the refrigerator compartment.
There is a problem in that the refrigerator compartment is dried, which adversely affects the freshness of stored products such as food.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and provides a refrigerator capable of uniformly cooling a stored item in a storage room by making the temperature distribution in the storage room substantially uniform. The purpose is to do. Another object of the present invention is to provide a refrigerator capable of preventing drying in a storage room.

[0005]

In order to achieve the above-mentioned object, a refrigerator according to the present invention comprises a storage room for storing a storage item, a cooler for generating cold air flowing into the storage room, and the storage room. A cold air passage that is provided in communication with the cold air and guides the cold air to the storage chamber; and a member that forms at least a part of the cold air passage and discharges at least a part of cold heat generated by the cold air flowing through the cold air passage into the storage chamber. A directional discharge unit that causes at least a part of the cool air guided to the storage chamber to flow along the surface of the member.

The refrigerator according to the present invention also includes a storage room for storing stored goods, a cooler for generating cool air flowing into the storage room, and a cooler provided in communication with the storage room and for transferring the cool air to the storage room. A member that discharges at least a part of the cold heat by the cool air that forms at least a part of the cool air passage and forms a part of the inner wall of the storage room and flows through the cool air passage, into the storage room, A directional discharge unit provided in the member to allow at least a part of the cool air guided to the storage chamber to flow along the surface of the member on the storage chamber side.

[0007] According to these configurations, part of the cold generated by the cool air flowing through the cool air passage is uniformly discharged from the large area of the member into the storage chamber. Then, since the cool air blown out from the directional discharge unit provided on the member forms a flow along the surface of the member, even if water droplets adhere to the member surface due to dew condensation or the like, evaporation of the water droplets is promoted by the cool air. You.

[0008] If the member has a moisturizing function of retaining water droplets generated on the surface on the storage room side, it is possible to prevent water droplets attached to the member surface from flowing down and accumulating at the bottom of the storage room. Can be prevented.

In this case, by forming an uneven portion on the surface of the member, a water droplet to be flown is held by the uneven portion, so that it becomes easy to add a moisture retention function to the member.

[0010] The uneven portion may be formed to extend in the horizontal direction.

By providing the directional discharge portion near the center of the member, the above-described flow of cool air along the member surface can be easily formed with a simple structure. in this case,
The cool air flows from the vicinity of the center of the member toward the peripheral edge.

On the other hand, at least two or more directional discharge units may be provided at positions facing each other on the peripheral edge of the cooling member. In this case, the cool air flows from the peripheral edge of the member toward the center. create.

[0013] Further, by providing a collecting portion for collecting water droplets flowing down the surface of the cooling member below the member, when the allowable amount of water droplets that can be held by the member is exceeded, the member is removed. Water droplets flowing down the surface are collected by the collection section and accumulate here.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side sectional view showing a refrigerator according to the first embodiment of the present invention. In the refrigerator 1, an inner box 2b is arranged inside an outer box 2a covering the outside, and the outer box 2a and the inner box 2a are arranged.
A gap between the insulating material 2b and the insulating material 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 partitioned by a partition frame 17 made of a heat insulating member and a partition plate 19 made of a heat insulating member. The freezing compartment 13 is further divided by a partition frame 1 made of a heat insulating member.
The upper and lower parts are divided by eight. The refrigerator compartment 11 and the vegetable compartment 12 are partitioned by a partition frame 16 made of a heat insulating member and partition plates 31 and 32 made of a resin molded product. The 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 vegetable compartment 12, the upper part of the freezer compartment 13 and the lower part of the freezer compartment 13 are openable and closable by sliding-type heat-insulating doors 4, 5, and 6, respectively, so that the storage containers 54, 55, and 56 can be drawn out. ing.

A compressor 20 is provided at the rear of the freezer 13. A condenser (not shown) is connected to the compressor 20 via a discharge pipe 20a, and coolers 21 and 25 are connected in series via a suction pipe 20b. The condenser and the cooler 25 are connected via a first capillary tube (not shown). The second between the coolers 21 and 25
A capillary tube (not shown) is provided.

Thus, a refrigeration cycle is constituted, and when the refrigeration cycle operation is performed, the coolers 21 and 25 are cooled. Defrost heaters 61 and 62 for defrosting the coolers 21 and 25 are provided below the coolers 21 and 25. 63 and 64 are drain receiving members.

A switching means (not shown) is provided between the condenser and the first capillary tube, and the switching means and the cooler 21 are connected via a third capillary tube (not shown). . By switching the switching means, only the cooler 21 can be cooled.

The cooler 21 is arranged in a cool air passage 23, and the cool air passage 23 is formed by the inner box 2b and an evaporative cover 33 made of a resin molded product. A blower 22 is disposed above the cooler 21 in the cool air passage 23. The cool air passage 23 communicates with the freezer compartment 13 through an inlet 13a and an outlet 13b to the freezer 13 provided on the back plate 33a.

The cooler 25 is disposed in the cool air passage 27. The lower part of the cool air passage 27 is formed by the inner box 2 b and the back plate 34 of the vegetable compartment 12. The back plate 34 is made of a heat insulating member, and prevents the vegetable room 12 provided near the cooler 25 from being overcooled. A blower 26 is arranged above the cooler 25 in the cool air passage 27. Cold air passage 27 is outlet 1
2b communicates with the vegetable compartment 12.

The upper part of the cold air passage 27 is formed by a heat insulating member 36 fixed to the back plate 35 of the ice temperature chamber 14 and the inner box 2b. The heat insulating member 36 is provided with a discharge port 36a. FIG. 2 shows a front view of the refrigerating compartment 11 and the back plate 3.
5 is provided with a discharge port 35a at the same position as the discharge port 36a. The refrigerator compartment 11 communicates with the cool air passage 27 through the discharge ports 35a and 36a.

The cool air passage 27 communicates with a cool air passage 28 at the back of the refrigerator compartment 11. In FIG. 2, the cold air passage 2
Reference numeral 8 denotes a central passage 28a disposed substantially at the center and a central passage 28a.
a and a side passage 28b provided on both sides of the
Branch. The rib 28d is connected to a back plate 7 described later.
0 and are formed integrally. The cool air passage 27 is also branched into branch passages 27a and 27b corresponding to the cool air passage 28.

A blower 29 is provided at the lower end of the central passage 28a. A blower cover 41 facing the refrigerator compartment 11 is attached to the front of the blower 29. Blower cover 4
1 has a plurality of openings 41a.

A detailed view of the blower 29 is shown in FIG.
The central passage 28a is provided between the air taken in from the refrigerator compartment 11 through the opening 41a by the blower 29 and the blower 26.
1 (see FIG. 1), the cool air flowing through the cool air passage 27 is mixed. The cool air flowing through the cool air passage 27 collides with the wall surface 41b of the blower cover 41, and
It is guided to the direction of the blower 29 by c. Guide part 41c
When the blower cover 41 is made of metal, it may be cut and raised to be integrally formed.

At this time, a suitable heat insulating member may be provided on the inner surface of the blower cover 41 in a region where the cool air flows from the cool air passage 27 to prevent condensation. Further, when the blower cover 41 is formed of metal or the like, the cool heat of the cool air passing through the central passage 28 a is released from the blower cover 41 into the refrigerator compartment 11.

The opening 41a is formed above the guide portion 41c, and is disposed outside the path of the cool air flowing through the cool air passage 27. This prevents cold air flowing through the cold air passage 27 from entering the refrigerator compartment 11 from the opening 41a. As a result, it is possible to prevent overcooling of a local part of the refrigerator compartment 11 due to cold air leakage.

The cold air passage 28 includes a member 42 forming the inner wall at the back of the refrigerator compartment 11 and a back plate 70 provided on the inner box 2b.
Are formed. The back plate 70 is the back plate 3 described above.
5 are formed integrally. The member 42 is formed of a heat conductive member having a heat conductivity having a shape as shown in FIG. 6 (for example, an aluminum alloy or stainless steel having good workability and a high rust prevention effect).

Thus, cold storage and release of cold heat are enabled. Here, 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.

As shown in FIG. 2, the central passage 28a
A portion of the member 42 facing the
The ejection member 7 described later is fitted into the opening 42a.

As shown in the front view and cross-sectional view of FIGS. 7 and 8, on the surface of the member 42, a horizontally extending convex portion 42j and a concave portion 42k are provided intermittently by press working or the like. Thus, the strength of the member 42 is reinforced, the surface area is increased, the cold storage capacity and the amount of cold heat released are improved, and the cooling efficiency is improved.

Further, the number of times of opening and closing of the heat insulating door 3 is large, and
When the temperature and / or humidity in the inside 1 rises significantly, dew forms on the surface of the member 42 and the inside of the refrigerator compartment 11 dries. At this time, the water droplets due to the dew condensation do not flow down but are collected and held in the upper portion 42j 'of the convex portion 42j. In addition, the pattern break 4 due to the convex portion 42j
Even at 2 m, water droplets are retained by surface tension.

Thereafter, when the blowing of the cool air in the cool air passage 28 cooled by the cooler 25 is stopped, the convex portions 42 of the member 42 are stopped.
The water droplets caught in j evaporate into the dried refrigerator compartment 11,
The inside of the refrigerator compartment 11 is humidified. Therefore, the moisture does not flow out of the refrigerator compartment 11, the humidity in the refrigerator compartment 11 is maintained, and the members 42
Functions as a moisturizing member. In addition, the concave portion 42k is connected to the refrigerator compartment 1
If it is arranged on one side, water droplets are likely to accumulate, and the moisturizing ability is further improved.

Further, as shown in FIG. 9, the convex portion 42j may be formed by an intermittently inclined pattern. Even in this case, the water droplets due to dew condensation do not flow down and are held by the surface tension at the cuts 42m of the pattern formed by the projections 42j.

FIGS. 10 and 11 show detailed cross-sectional views of the upper and lower ends of the member 42. FIG. According to these figures, the member 42
Are the upper mounting portion 71 provided on the back plate 70 and the back plate 35
And is locked by a lower mounting portion 72 provided on the upper side. When the lever portion 71a of the upper mounting portion 71 is pushed up by a finger, the engagement of the claw portion 71b is released.

In this state, the member 42 can be detached by tilting the upper part of the member 42 forward and pulling it upward, and the member 42 is detachable. This allows the central passage 2
8a, the side passage 28b and the back side of the member 42 can be easily cleaned. The member 42
Is hermetically sealed by a seal member 73 fixed to the heat insulating member 36.

Further, the lower end portion of the member 42 may be as shown in FIG. That is, a water reservoir 35 d (collecting unit) is integrally formed at the upper end of the back plate 35, and is installed so as to receive the member 42. By doing so, even if water droplets that could not be held by the convex portions 42j or the concave portions 42k (see FIG. 6) of the member 42 flow down, they are stored in the water pool portion 35d. When the temperature of the member 42 approaches the inside of the refrigerator compartment 11, the water droplets caught in the pool 35 d evaporate and humidify the refrigerator compartment 11. Therefore, a decrease in the water content in the refrigerator compartment 11 can be more effectively prevented.

FIG. 4 is a top sectional view of the refrigerator compartment 11.
The surface of the member 42 that covers the side passage 28b on the side of the side passage 28b is provided with a large amount of cold heat of the cold air passing through the side passage 28b.
A heat insulating member 28c is provided so as not to transmit the heat to the second member. The side wall of the side passage 28b is formed by the back plate 70, and the side wall is provided with a plurality of openings 70a.

The rear plate 70 is formed with a wall portion 70c that covers the outer periphery of the member 42. A plurality of discharge portions 70b communicating with the opening 70a are recessed in the wall surface portion 70c. Therefore, through the discharge unit 70b and the opening 70a,
The side passage 28b communicates with the refrigerator compartment 11 and cools the cold air into the refrigerator compartment 1.
1 can be discharged.

The member 4 facing the central passage 28a
2, a substantially rectangular opening 42a is partially provided, and the ejection member 7 is fitted therein. That is, as shown in FIG. 5, ribs 7b protruding from the vicinity of both side edges of the discharge member 7,
Claws 7c, 7c are formed at the tip of 7b, and the discharge member 7 is attached to the member 42 by hooking the claw 7c on the opening 42a.

A hole 7a penetrating in the left-right direction is provided at the base of the rib 7b of the discharge member 7, and the central passage 28a and the refrigerating chamber 11 communicate with each other through the hole 7a. . Therefore, the central passage 28a is formed from the hole 7a.
Is discharged along the surface of the member 42 on the side of the refrigerator compartment 11. The exhaled cold air A
The shape of the hole 7a may be inclined so that the tip of the hole 7a is directed toward the member 42 in order to make the flow along the surface of the member 42 on the side of the refrigerator compartment 11 easier.

The opening 42a is not provided in the member 42, and the vicinity of the position where the opening 42a is provided is extruded by a press, and the protrusion similar to the discharge member 7 is continuously projected from the member 42 so that the discharge member 7 Alternatively, a hole penetrating in the left-right direction similar to the hole 7a may be cut and provided at a position corresponding to the wall surface of the member 42 protruded as described above. In this case, since the area of the part facing the central passage 28a of the member 42 can be sufficiently secured, a part of the cold heat generated by the cool air flowing through the central passage 28a is transferred to the refrigerator compartment 11 through the member 42. And the temperature inside the refrigerator is further homogenized.

In FIG. 2, the wall portion 70c has a mounting portion 74.
Is formed near the same height as the shelf 45 (FIG. 1) placed on the shelf 45 so that food or the like placed on the shelf 45 does not drop to the discharge section 70b. The opening 70a is formed in a slit shape so that the stored material does not fall into the side 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 on the ceiling of the refrigerator compartment 11 by an upper plate 43 made of a resin molded product and the inner box 2b. The ceiling ducts 54 are arranged side by side,
It communicates with the central passage 28a. The cool air passing through the central passage 28a is diffused right and left by a rib 70e formed on the back plate 70 and guided to the ceiling duct 54.

Then, a plurality of ceiling discharge portions 43a provided in the front-rear direction of the upper surface plate 43 can disperse the cool air to the left and right. Since the cool air passing through the central passage 28a is diffused right and left before flowing into the ceiling duct 54, the cool air is sufficiently discharged from the ceiling discharge portion 43a provided at a position close to the back plate 70 of the refrigerator compartment 11. Note that an illumination lamp 51 (FIG. 1) covered with a transparent illumination cover 53 is provided between the left and right ceiling ducts 54.

The flow of cold air in the refrigerator 1 having the above-described configuration will be described with reference to FIGS. 1, 2 and 4. When the blower 22 is driven, the air in the freezing compartment 13 flows out of the outlet 13.
b is led to the cool air passage 23. 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.

When the blowers 26 and 29 are driven, the air in the vegetable compartment 12 is guided from the outlet 12b to the cool air passage 27. The air exchanges heat with the cooler 25 and is cooled to generate cool air. Part of the cold air flows into the ice warming chamber 14 through the openings 35a and 36a. Thereby, the inside of the ice greenhouse 14 is cooled to, for example, -1 ° C.

The other cool air is supplied to the central passage 28a and the side passage 2
8b. The cool air passing through the side passage 28b is guided by the rib 70d and is discharged from the discharge portion 70b into the refrigerator compartment 11. On the other hand, the cool air passing through the central passage 28a is mixed with the air in the refrigerator compartment 11 that is guided from the opening 41a to the central passage 28a. And this cold air is
4 and is discharged from the ceiling discharge section 43a.

Further, as shown in FIG.
Is discharged from the discharge member 7 and flows in the left-right direction along the surface of the member 42 on the side of the refrigerator compartment 11. Following the flow of the cool air A, the cool air B having a relatively high temperature in the cool room 11 is mixed and introduced into the cool room 11 together with the cool air D discharged from the discharge section 70b as the mixed cool air C. Thereby, the air in the refrigerator compartment 11 is constantly stirred, so that the temperature distribution in the refrigerator compartment 11 can be maintained substantially uniform.

A part of the cold generated by the cool air flowing through the central passage 28a is transmitted to the member 42, and the side passage 28b
Is discharged as cold from the entire surface including the front surface of the refrigerator. Then, as described above, since the fresh mixed cold air C always flows on the surface of the member 42 on the side of the refrigerator compartment 11, the member 42
Is quickly removed. For this reason, not only the efficiency of discharging cold heat is further improved, but also when the water droplets adhere to the surface of the member 42 on the side of the refrigerator compartment 11 and the water droplets adhere, the cold air A blown from the discharge member 7 and the cold air B in the refrigerator are evaporated. And the inside of the refrigerator compartment 11 is humidified and maintained at an appropriate humidity. Therefore, the cold heat released from the member 42,
The inside of the refrigerator compartment 11 is efficiently and uniformly cooled by the cool air dispersed and discharged from the discharge member 7, the discharge part 70b and the ceiling discharge part 43a.

When water droplets adhere to the surface of the member 42 on the side of the refrigerator compartment 11 and water drops adhere thereto, the evaporation is promoted by the cool air A blown from the discharge member 7, so that the heat insulating member 28c may be omitted.

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, the cooler 2 from the outlet 12b
The air is guided to the lower part of 5, and cool air circulates.

The compressor 20 and the blower 26 are operated and stopped based on the detection result of the temperature sensor (not shown), and the temperatures of the refrigerator compartment 11 and the vegetable compartment 12 are maintained at, for example, 3 ° C.

When the cooling by the cooler 25 is stopped and one or both of the blowers 26 and 29 are operated, the members 4
2 cools the cold air passing through the central passage 28a, and the cold air cools the refrigerator compartment 11. When the blower 26 is operated, the cooler 25 can be further defrosted to humidify the inside of the refrigerator compartment 11.

According to the present embodiment, a part of the cold heat of the cool air passing through the central passage 28a is supplied to the member 42 functioning as a heat conducting plate.
And is released into the refrigerator compartment 11 from the entire surface. Therefore, the refrigerating room 11 is uniformly cooled by cold heat uniformly discharged from a wide area covering the central passage 28a and the side passages 28b.

At this time, a large amount of cold heat is not transmitted to the member 42 from the cool air passing through the side passage 28b by the heat insulating member 28c. For this reason, when a lot of cool air flows into the cool air passage 27, dew condensation on the member 42 and the discharge portion 70b can be prevented. Then, by changing the area in which the heat insulating member 28c is installed, it is possible to circulate cold air at a desired temperature and flow rate.

Also, when the temperature of the cool air passing through the cool air passage 28 is lowered or the flow rate of the cool air is increased to increase the cooling capacity, there is a possibility that dew condensation may occur on the side of the refrigerator 42 of the member 42 near the central passage 28a. In order to reduce the cooling of the member 42 by the cool air, a thin heat insulating member is provided in the central passage 28a.
May be provided on the member 42 side.

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.

The discharge section 70b may be formed by opening the member 42, but is preferably provided around the outside of the member 42 as in the present embodiment. That is, since it does not open to the front side, firstly, the cool air passage 28 is covered and the aesthetic appearance is improved.
Secondly, since the cool air is not directly discharged to the front surface, the noise in the side passage 28b and the sound of the discharge wind at the opening 70a do not directly go out to the front, so that the noise is reduced. Third, since there is no opening in the member 42, the entire surface of the member 42 contributes to uniform discharge of cold heat, and the temperature in the refrigerator becomes more uniform.
It also functions as a light reflecting surface of the illumination lamp 51 and the like, and can provide effects such as brightening the inside of the refrigerator compartment 11 over a wide range without unevenness.

The member 42 facing the central passage 28a is directly conveyed the cold heat by the cool air, while the member 42 facing the side passage 28b is transmitted the cool heat from the central passage 28a. For this reason, the released cold heat slightly decreases in the side passage 28b, and the temperature inside the refrigerator compartment 11 varies.

For this reason, if the discharge portion 70b is arranged on the central passage 28a, for example, the temperature variation becomes larger. In this embodiment, the discharge portion 70b is formed by the rib 28d forming the side wall of the central passage 28a and the side wall of the refrigerator compartment 11. It is arranged almost at the center between the two. As a result, this temperature variation is reduced, and cooling can be performed with more uniform cold heat release. Further, the member 42 has a maximum size in consideration of the arrangement of the discharge portions 70b, and the inside of the refrigerator compartment 11 can be cooled more uniformly by discharging the cool air from both the discharge portions 70b and discharging the cold heat by the members 42. .

The cool air generated at a low temperature by the cooler 25 is slightly heated by mixing with the air in the refrigerator compartment 11. Thereby, the member 42 and the ceiling discharge part 43a
It is possible to further prevent dew condensation and icing that occurs near the vicinity, and prevent the refrigerator compartment 11 and the vegetable compartment 12 from drying.

Further, by providing a cooler 25 for cooling the refrigerator compartment 11 and the vegetable compartment 12 and a cooler 21 for cooling the freezer compartment 13, the temperature of the cool air flowing through the cool air passages 27 and 28 can be reduced. It can be set higher than the cold air temperature. Thereby, dew condensation and icing generated on the member 42 can be further prevented.

The member 42 is erected on the back of the refrigerator compartment 11 and extends vertically. For this reason, when the temperature and humidity in the refrigerator compartment 11 are extremely increased due to the number of times of opening and closing of the heat insulating door 3, even if dew is formed on the member 42 and water droplets are generated, they do not drop directly on the storage. Therefore, without damaging the storage,
Good storage condition can be maintained.

At this time, when the blowing of the cool air in the cool air passage 28 cooled by the cooler 25 is stopped, the member 42 is moved to the refrigerator compartment 1.
1 and the temperature of the refrigerator 11
The inside dries. As a result, some of the water droplets evaporate while flowing down the member 42 and the back plate 35. Therefore, the humidity in the refrigerator compartment 11 can be increased again. Further, a porous member (for example, an oval hole,
By providing a fence-shaped protective wall (a round hole or the like), the member 42 can be made thinner, so that the effect of releasing cold heat is improved, and scratches and breakage are also prevented.

Next, a second embodiment of the present invention will be described with reference to the drawings. In the drawings showing the present embodiment, the same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 13, in the present embodiment, a plurality of discharge members 8 and 9 which are opposed to each other are provided in a pair on the left and right sides on the upstream side of the discharge portion 70b of the side passage 28b. FIG.
5 is a detailed view of a main part in which the periphery of the ejection member 9 is enlarged. These ejection members 8 and 9 are, as shown in FIG.
The horizontal section is an L-shaped member, and is attached between both side edges of the member 42 and the upstream side of the opening 70a of the back plate 70 by nail fitting.

The inside of each of the discharge members 8, 9 is hollow, and a hole 8a, 8
The refrigerator compartment 11 communicates with the side passage 28b by 9a. Since the upstream side of the opening 70a is bifurcated, the cool air flowing through the side passage 28b passes through the discharge member 9 and is blown out from the opening 9a, and flows along the surface of the member 42. The cold air A ′ and the cold air D ′ blown out of the refrigerator 11 through the discharge part 70b are divided into the cool air 11 and guided into the refrigerator 11. In addition, on the surface of the member 42, a convex portion 42j and a concave portion 42k similar to those in FIGS.

When the cooler 20 (FIG. 1) is operated with the above configuration, a part A 'of the cool air flowing through the side passage 28b is blown out from the discharge members 8, 9 as shown in FIG. ,
It flows from both right and left along the surface of the member 42 on the side of the refrigerator compartment 11 toward the vicinity of the center of the member 42. On the other hand, the discharge unit 7
The cool air D ′ discharged from 0b is introduced into the refrigerator compartment 11 and then circulates through the refrigerator compartment 11 to become a relatively high-temperature cool air B ′ and returns to the back of the refrigerator compartment 11.

The cold air B ′ mixes with the cold air A ′ so as to follow the cold air A ′, and collides as mixed cold air C ′ from both the left and right near the center of the member 42, and the refrigerator compartment 11
It becomes an airflow heading forward. Thereby, the air in the refrigerator compartment 11 is constantly stirred, so that the temperature distribution in the refrigerator compartment 11 can be maintained substantially uniform, and the water in the refrigerator compartment 11 is condensed and water droplets adhere to the surface of the member 42. Even if
Evaporation of water droplets is promoted by the cool air A 'or the mixed cool air C', and the inside of the refrigerator compartment 11 can be maintained at an appropriate humidity to prevent drying.

Although the discharge member 9 in FIG. 15 is attached to the member 42 by a separate member by nail fitting, the same shape as the discharge member 9 is integrally formed on the back plate 70 as a discharge portion. The same effect can be obtained even if a part of the cool air is discharged in the center direction. However, in this case, a hole is opened from the mold structure on the wall surface of the back plate 70 facing the discharge member 9, but the inner box 2 b is located behind the hole, and the rear box 70 is closed. Has no significant effect. However, member 4
Reference numeral 2 denotes a size up to the center-side end of the discharge portion corresponding to the discharge member 9 corresponding to the discharge member 9, and the amount of cold heat released is reduced slightly.

Further, the protrusions 4 formed on the surface of the member 42
2j reinforces the strength of the member 42, prevents the water droplets from flowing down by holding the water droplets on the surface of the member 42,
As in the first embodiment, the ability to store and release cold heat from the member 42 by increasing the surface area is improved.

In the present invention, when a part of the cold heat generated by the cool air passing through the cool air passage is released into the storage chamber through the member, the part of the cool air passing through the cool air passage absorbs heat from the member and removes the member. Cooling means that the member absorbs heat from the storage room and cools the storage room.

[0074]

As described above, according to the present invention, a member forming at least a part of a cool air passage for guiding cool air to a storage room is provided, and the cold heat generated by the cool air flowing through the cool air passage from the member is discharged to the storage room. While cooling the storage chamber, at least part of the cool air along the surface of the member along the surface of the member by the directional discharge portion provided in the member, so that the inside of the cool air passage Water droplets adhering to the member due to condensation when the temperature difference from the storage room is large can be quickly eliminated, and the storage room can be uniformly and efficiently cooled.

Further, according to the present invention, since the concave and convex portions are formed on the surface of the member, the water droplets due to the condensation do not flow down but are stored above the concave and convex portions or held by surface tension. Then, the retained water droplets evaporate, thereby easily humidifying and preventing drying in the storage room. Further, the strength of the moisturizing member is reinforced, and the surface area is increased to increase the amount of cold storage or the release of cold heat, thereby improving the cooling efficiency.

Further, according to the present invention, since water droplets that cannot be caught by the member are collected by the collecting portion, the outflow of moisture from the storage room can be further prevented, and the drying in the storage room can be further prevented.

[Brief description of the drawings]

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

FIG. 2 is a front view of a refrigerator room of the refrigerator.

FIG. 3 is a detailed view of a main part of the refrigerator.

FIG. 4 is a horizontal sectional view of the refrigerator.

FIG. 5 is a detailed view of a main part of the refrigerator.

FIG. 6 is a perspective view showing members of the refrigerator.

FIG. 7 is a front view showing another example of the member.

FIG. 8 is a side sectional view of a main part of the member.

FIG. 9 is a front view showing still another example of the member.

FIG. 10 is a sectional view of a main part at the upper end of the member.

FIG. 11 is a sectional view of a main part at a lower end of the member.

FIG. 12 is a sectional view of a main part of another example of a lower end of the member.

FIG. 13 is a front view of a refrigerating compartment of a refrigerator according to a second embodiment of the present invention.

FIG. 14 is a horizontal sectional view of the refrigerator.

FIG. 15 is a detailed view of a main part of the refrigerator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator 2a Outer box 2b Inner box 3, 4, 5, 6 Insulated door 7, 8, 9 Discharge member 11 Refrigerator room 12 Vegetable room 13 Freezer room 14 Ice greenhouse 20 Compressor 21, 25 Cooler 22, 26, 29 Blower 23, 27, 28, 30 Cold air passage 28a Central passage 28b Side passage 28c, 36 Insulation member 42 Member 51 Illumination lamp 53 Lighting cover 54 Ceiling duct 61, 62 Defrosting heater 70 Back plate

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 3L045 AA04 AA07 BA01 CA02 DA02 EA01 HA02 KA12 PA04 3L048 AA01 AA06 AA07 BA01 BC02 BD04 CA01 CB02 CB09 CE06 DA01 FA01 GA02

Claims (8)

[Claims] 1. A storage room for storing stored goods, a cooler for generating cool air flowing into the storage room, a cool air passage provided in communication with the storage room and guiding the cool air to the storage room,
A member that forms at least a part of the cold air passage, and that discharges at least a part of the cold generated by the cool air flowing through the cool air passage into the storage chamber; and at least a part of the cool air that is guided to the storage chamber is a surface of the member. And a directional discharge unit for flowing along the refrigeration system. 2. A storage room for storing stored goods, a cooler for generating cool air flowing into the storage room, a cool air passage provided in communication with the storage room and guiding the cool air to the storage room,
A member that forms at least a part of the cold air passage and forms a part of an inner wall of the storage room, and that discharges at least a part of cold heat by cold air flowing through the cold air passage into the storage room; A refrigerator comprising: a directional discharge unit that causes at least a part of the cool air guided to the storage room to flow along the surface of the member on the storage room side. 3. The refrigerator according to claim 1, wherein the member has a moisturizing function of retaining water droplets generated on the surface on the storage room side. 4. The refrigerator according to claim 3, wherein the member has an uneven portion on a surface. 5. The refrigerator according to claim 4, wherein the concave and convex portions are formed to extend in a horizontal direction. 6. The refrigerator according to claim 1, wherein the directional discharge section is provided near a central portion of the member. 7. The refrigerator according to claim 1, wherein at least two or more of the directional discharge units are provided at positions facing each other on a peripheral edge of the cooling member. 8. The refrigerator according to claim 1, further comprising a collecting portion provided below the member for collecting water droplets flowing down the surface of the cooling member.