JP2001108351A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator to uniform temperature in a storage chamber and prevent the occurrence of vapor condensation. SOLUTION: This refrigerator comprises a storage chamber 11 to contain storage substances; a cooler 25 to generate cold air flowing in the storage chamber 11; a cold air passage 28 through which cold air is guided to the storage chamber 11 and which is situated separately from the storage chamber 11 through a partition wall; a member 42 to form at least a part of the partition wall and discharge a cold heat by cold air, flowing through the cooling passage 28, in the storage chamber 11; and a heat insulation member 28c situated at a part of the cooling passage 28 side 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 FIG. 11 is a partial side sectional view of a conventional refrigerator.
Shown in The refrigerator 1 has an inner box 2 inside an outer box 2a covering the outside.
b, 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.

A cool air passage 28 through which cool air generated by a cooler (not shown) flows is provided behind the refrigerator compartment 11 and the ice warming compartment 14. A member 42 facing the cool air passage 28 is provided on the back of the refrigerator compartment 11. A back plate 35 facing the cool air passage 28 via a heat insulating material 36 is provided on the back of the ice temperature chamber 14.

[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 uniformly cooled by the cold heat discharged from the entire surface of the member 42, the amount of cold air flowing through the cool air passage 28 is large. Refrigeration room 11
The temperature difference between the inside and 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.

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.

[0009]

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 transferring the cool air to the storage room. A cooling air passage that guides the cooling air; a member that releases cold heat generated by the cool air flowing through the cooling passage into the storage chamber; and a heat insulating member that is disposed on a part of the member on the cooling passage side. .

According to this configuration, the cool air generated by the cooler flows into the storage room through the cool air passage. Cold heat generated by the cool air passing through the cool air passage is transmitted to the member. At this time, a part of the member is covered with a heat insulating member, and the amount of cold received from the cool air is limited. Then, cold heat is uniformly discharged from the entire surface of the member into the storage chamber.

Further, the present invention is provided with a storage room for storing a storage object, a cooler for generating cool air flowing into the storage room, and the cool air guided to the storage room and provided through the storage room and a partition wall. A cool air passage, a member that forms at least a part of the partition wall and discharges cold generated by cold air flowing through the cooling passage into the storage chamber, and a heat insulating member disposed on a part of the member on the cooling passage side It is characterized by having.

According to this configuration, the cool air generated by the cooler flows into the storage room through the cool air passage. Cold heat generated by the cool air passing through the cool air passage is transmitted to a member forming a partition from the storage room. At this time, the member is covered with a heat insulating member having such a size and thickness that the member does not condense due to the amount and temperature of the cool air, and the amount of cool heat received from the cool air is limited. Then, cold heat is uniformly discharged from the entire surface of the member into the storage chamber.

Further, the present invention is characterized in that in the refrigerator having the above-mentioned structure, the member comprises a cold storage member for accumulating cold heat or a heat conducting member having a heat conducting function.

Further, according to the present invention, in the refrigerator configured as described above, the cold air passage has a plurality of branched passages.
The heat insulating member is provided on at least a part of the branch passage on the member side.

According to the present invention, in the refrigerator having the above-mentioned structure, the cold air passage has first and second branched passages.
The heat insulating member is provided in the first passage. According to this configuration, the cool air passage is branched into the first passage and the second passage, and the cold heat generated by the cool air passing through the first and second passages is transmitted to the member. Then, cold heat is uniformly discharged from the entire surface of the member into the storage chamber. At this time, the heat transmitted from the cool air passing through the first passage to the member is restricted by the heat insulating member.

Further, the present invention is characterized in that in the refrigerator having the above-mentioned structure, the air in the storage chamber is guided into the second passage so as to be mixed with the cool air cooled by the cooler. According to this configuration, the cool air generated by the cooler flows into the storage room after being mixed with the air guided from the storage room to the second passage in the second passage and heated.

According to the present invention, there is provided a refrigerator having the above structure, further comprising a blower arranged on a path of cool air cooled by the cooler and for sucking air in the storage chamber through an opening. Is formed outside the path of the cool air. According to this configuration, the cool air generated by the cooler flows through the cool air passage together with the air in the storage room flowing from the opening without entering the storage room through the opening.

Further, the present invention is characterized in that, in the refrigerator having the above-described structure, a guide portion for blocking the progress of the cool air to the opening and guiding the cool air to the blower is provided in the second passage. According to this configuration, a part of the cool air cooled by the cooler collides with the guide portion and is guided toward the blower.

According to the present invention, in the refrigerator having the above-described structure, the second passage is disposed substantially at the center of the member in the horizontal direction. According to this configuration, the second passage is formed so as to extend in the vertical direction substantially at the center of the wall surface, and the first passage is formed, for example, on both sides of the second passage.

According to the present invention, in the refrigerator having the above-described structure, the member is arranged on a back surface of the storage room.
A discharge portion for discharging cool air from the first passage into the storage chamber is provided substantially at the center between the side wall of the storage room and the side wall of the second passage.

Further, the present invention is characterized in that an opening for discharging the cool air to the storage chamber communicating with the cool air passage is provided behind the member.

According to the present invention, in the refrigerator having the above-described structure, the cold air passage is disposed behind the storage room, and a plurality of discharge portions communicating with the cold air passage are provided on a wall surface of the storage room outside the member. Is characterized by being recessed. According to this configuration, the cool air passing through the cool air passage flows into the storage room from around the outside of the member through the plurality of discharge portions.

Further, the present invention is characterized in that in the refrigerator having the above structure, a rib for guiding cool air to the discharge section is provided in the first passage.

The present invention also relates to a refrigerator having the above-mentioned structure, wherein a ceiling duct communicating with the cool air passage is provided at a ceiling portion of the storage room, and a plurality of ceiling discharge portions for discharging cool air toward the storage room are provided at the ceiling. It is characterized by being provided separately on the left and right of the duct. According to this configuration, the cool air passing through the cool air passage is discharged from the ceiling duct to the left and right sides of the storage room through the ceiling discharge portion.

According to the present invention, in the refrigerator having the above-described structure, the member is made detachable.

[0026]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side sectional view showing the refrigerator of the first 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 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 partitioned 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 is provided an ice 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 provided at the rear of the freezer compartment 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 configured, 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.

Switching means is provided between the condenser and the first capillary tube, and the switching means and the cooler 21 are provided.
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 the cool air passage 23, and the cool air passage 23 is formed by the inner box 2b and the 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 provided 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 cool 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
8 is a central passage 28a (second passage) disposed substantially at the center,
Side passages 28b provided on both sides of the central passage 28a
(First passage) by a rib 28d. The rib 28d is formed integrally with a back plate 70 described later. 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 arranged 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.

FIG. 3 shows a detailed view of the blower 29 portion.
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 dew 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 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 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. The member 42 is formed of a heat conductive member having a heat conductivity having a shape as shown in FIG. 5 (for example, an aluminum alloy or stainless steel having good workability and 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. 7 and 8 are detailed cross-sectional views of the upper and lower ends of the member 42. FIG. According to these figures, the member 4
2 is an upper mounting portion 71 provided on the rear plate 70 and a rear plate 3
5 is locked by a lower mounting portion 72 provided on the fifth mounting member 5. When the lever portion 71a of the upper attachment portion 71 is pushed up by a finger, a claw portion 71b is formed.
Is disengaged.

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.

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 has a wall surface portion 70c which 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.

In FIG. 2, the wall portion 70c has a mounting portion 74.
Is formed near the same height as the shelf 45 placed on the shelf 45.
The food or the like placed on the top is prevented from dropping onto the discharge unit 70b. The opening 70a is formed in a slit shape so that the stored material does not fall into the side passage 28b.
The rear plate 70 has ribs 7 for guiding cool air to the discharge portion 70b.
0d is formed.

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.

A plurality of ceiling discharge portions 43a provided in the front-rear direction of the upper surface plate 43 can discharge cold air in a distributed manner 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 covered with a transparent illumination cover 53 is provided between the left and right ceiling ducts 54.

In the refrigerator 1 having the above structure, 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.

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. The cool air passing through the central passage 28a passes through the opening 4
It is mixed with the air in the refrigerator compartment 11 that is guided from the first passage 1a to the central passage 28a. Then, it passes through the ceiling duct 54 and is discharged from the ceiling discharge section 43a.

A part of the cold generated by the cool air flowing in 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. Therefore, the inside of the refrigerator compartment 11 is efficiently and uniformly cooled by the cool heat from the member 42 and the cool air dispersed and discharged from the discharge part 70b and the ceiling discharge part 43a.

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 cool air passing through the central passage 28a. 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, much heat is not transmitted from the cool air passing through the side passage 28b to the member 42 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.

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 refrigerator chamber 11 side 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 portion 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.
The light reflecting surface of the illuminating lamp 51 and the like can be widely used without unevenness. And the like can be obtained.

The member 42 facing the central passage 28a is directly transmitted by the cold heat generated by the cool air, while the member 42 facing the side passage 28b is transmitted by 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 disposed on, for example, the central passage 28a, this temperature variation becomes greater. In the present 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 from the member 42. .

The member 42 may be a regenerative member in which a jelly-like or liquid cold insulator 42c as shown in FIG. 6 is enclosed by packaging materials 42f and 42g. 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 or when the temperature of the cold air in the cold air passage 28 fluctuates, so that the temperature of the cold air in the cold 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 42c and 42d be made of a thermally conductive aluminum alloy or stainless steel.

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, if a porous (for example, an oval hole, a round hole, etc.) fence-shaped protective wall is provided in front of the member 42, the member 4
2 can be made even thinner, so the effect of releasing cold heat improves,
It also prevents scratches and damage.

FIG. 9 is a side sectional view showing a refrigerator according to a second embodiment. For convenience of description, the same parts as those in the first embodiment of FIGS. 1 to 4 are denoted by the same reference numerals. The refrigerator 1 has an inner box 2b disposed 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 urethane 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 partitioned 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 is provided an ice 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 disposed 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 arranged in the cool air passage 23, and the lower part of the cool air passage 23 is formed by the inner box 2b and the 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 rear surface of the vegetable compartment 12 is covered with the above-mentioned partition plate 19, and the pressure chamber 23 a above the cold air passage 23 is formed by the evaporator cover 33 and the partition plate 19. The partitioning plate 19 made of a heat insulating member prevents the vegetable compartment 12 provided near the cooler 21 from being overcooled.

The cool air passage 23 communicates with the cool air passage 28 disposed above the blower 22 via 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.
As shown in FIG. 10, openings 35a and 36a are provided at the same position in the back plate 35 and the heat insulating member 36. The ice temperature chamber 14 communicates with the cool air passage 28 by the openings 35a and 36a.

The cool air passage 28 is branched by a rib 28d into a central passage 28a disposed substantially at the center and side passages 28b provided on both sides of the central passage 28a. Rib 2
8d is formed integrally with a back plate 70 described later.

The upper portion of the cool air passage 28 is provided with a member 42 forming the inner wall of the refrigerator compartment 11 and a back plate 70 provided on the inner box 2b.
Are formed. The member 42 is formed of a heat conductive member having heat conductivity, such as an aluminum alloy or stainless steel, as in the first embodiment.

As in the case of FIG. 4, the refrigerating compartment 11 has a heat insulating member 28c on the inner surface of the member 42 for covering the side passage 28b so as to prevent much of the cold heat of the cool air passing through the side passage 28b from being transmitted to the member 42. Is arranged. 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 has a wall surface portion 70c which 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, the side passage 28b communicates with the refrigerating room 11 by the discharge portion 70b and the opening 70a, and cools the cold air to the refrigerating room 11
Can be discharged.

The wall portion 70c is formed near the same height as the shelf 45 placed on the placing portion 74 so that foods and the like placed on the shelf 45 do not drop to the discharge portion 70b. The rear plate 70 has ribs 70 for guiding cool air to the discharge portion 70b.
d is formed. The opening 70a is formed in a slit shape so that the stored material does not fall into the side passage 28b.

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.

The ceiling discharge section 43a provided on the upper surface plate 43 is capable of discharging cold air in a distributed manner to the left and right. 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 is supplied from the inlets 13 a and 13 c to the freezer compartment 13.
Flows into. 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. 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. The cool air passing through the central passage 28a is
4 and is discharged from the ceiling discharge section 43a.

A part of the cold heat 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. Accordingly, the inside of the refrigerator compartment 11 is efficiently and uniformly cooled by the cool heat from the member 42 and the cool air dispersed and discharged from the discharge unit 70b and the ceiling discharge unit 43a.

The air in the refrigerator compartment 11 is supplied between the shelves 45 and 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 damper 65 opens and closes according to the temperature of the refrigerator compartment 11, and the temperature of the refrigerator compartment 11 and the vegetable compartment 12 is maintained at, for example, 3 ° C.

According to the present embodiment, similarly to the first embodiment, the member 42 functions as a heat conducting plate that conducts a part of the cool heat of the cool air passing through the central passage 28a and discharges it into the refrigerator compartment 11. I have. Therefore, the refrigerator compartment 11 is uniformly cooled by the cool heat uniformly discharged from a wide area.

At this time, the side passage 2 is formed by the heat insulating member 28c.
Much of the cold heat is not transmitted to member 42 from the cool air passing through 8b. For this reason, even if a large amount of cool air flows through the cool air passage 27, dew condensation does not occur on the member 42 and the discharge portion 70b. By changing the area where the heat insulating member 28c is installed, it is possible to circulate cold air at a desired temperature and flow rate.

Further, by providing the discharge portion 70b around the outside of the member 42, it is possible to improve the aesthetic appearance, prevent noise, release uniform cold from the entire surface, and use the light reflection surface in a wide range. And since the discharge part 70b is arrange | positioned in the substantially center between the rib 28d which comprises the side wall of the central passage 28a, and the side wall of the refrigerator compartment 11, temperature variation is reduced and more uniform cooling can be performed. The member 42 may be a cold storage member as shown in FIG.

In the central passage 28a of this embodiment, the aforementioned FIG.
Is provided, the cool air in the refrigerator compartment 11 and the cool air passing through the central passage 28a are mixed, and the same effect as in the first embodiment can be obtained.

In the first and second embodiments, the cold air passage 2
8 is divided into three parts, a central passage 28a and two side passages 28b. In this embodiment, the cool air passage 28 is branched into four or more branch passages, and a heat insulating material is put in place according to the supply amount of the cool air. The same effect can be obtained even in the case where it is provided. For example, the cold air passage 28 is divided into five, and a heat insulating member is provided in the same manner as described above except for the central portion. Then, of the two passages on the left and right sides, the cool air rising through the passage on the center side may be lowered through the outside passage and discharged into the refrigerator compartment 11.

In the present invention, when a part of the cool 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.

[0096]

According to the present invention, a part of the cold heat of the cool air passing through the cool air passage is transmitted to the member including the cold storage member and the heat conduction member, and is discharged into the storage chamber from the entire surface. Therefore, the storage room is uniformly cooled by the cold heat uniformly discharged from a large area. At this time, a part of the cool air passage is not transmitted from the cool air to the member by the heat insulating member. Therefore, even if a large amount of cool air flows through the cool air passage, dew condensation does not occur on the members and the discharge unit. Then, by changing the area where the heat insulating member is installed, it is possible to circulate cold air at a desired temperature and flow rate.

Further, according to the present invention, since a plurality of discharge portions and ceiling discharge portions are provided on the wall surface of the storage room, cool air is dispersed and flows into the storage room. Thereby, the storage room is cooled uniformly. Further, by providing the discharge portion around the outside of the member, the appearance is improved, the cool air is not directly discharged to the front surface, so that noise is prevented, and since there is no opening in the member, the entire surface of the member contributes to uniform discharge of cold heat. Thus, the temperature inside the refrigerator can be made uniform, and the light reflection surface of an illumination lamp or the like can be used in a wide range without unevenness.

Further, according to the present invention, the cold air passage is branched into a plurality of branch passages, and high-temperature air in the storage chamber is mixed into one of the branch passages, thereby further suppressing the occurrence of dew condensation due to cool air passing through the branch passages. Is done.

According to the present invention, the opening for taking in the high-temperature air in the storage chamber by the blower is formed outside the path of the cool air before mixing, and the guide for guiding the cool air toward the blower is provided. Thus, it is possible to prevent the cooling air from leaking from the section and improve the cooling efficiency in the storage room.

Further, according to the present invention, the member facing the first passage in which the heat insulating member is disposed is transmitted with cold heat from the second passage. As a result, the released cold heat is slightly reduced in the first passage portion, and the temperature in the storage chamber varies. Therefore, by arranging the second passage substantially at the center in the horizontal direction, the cold heat is uniformly dispersed in the left and right direction of the storage room, and the temperature distribution can be made uniform. Further, by disposing the discharge portion substantially at the center between the side wall of the second passage and the side wall of the storage chamber, this temperature variation can be further reduced, and more uniform cooling can be performed.

Further, according to the present invention, since the ribs for guiding the cool air are provided in the discharge section, the cool air passing through the first passage is branched by the ribs, and the cool air is uniformly discharged from each discharge section.

Further, according to the present invention, since the members are detachable, it is possible to easily clean the cold air passage and the back surface of the members.

[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 according to the first embodiment of the present invention.

FIG. 3 is a detailed view of a main part of the refrigerator according to the first embodiment of the present invention.

FIG. 4 is a top sectional view of the refrigerator according to the first embodiment of the present invention.

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

FIG. 6 is a perspective view showing another member of the refrigerator according to the first embodiment of the present invention.

FIG. 7 is a sectional view of a main part of a member of the refrigerator according to the first embodiment of the present invention.

FIG. 8 is a sectional view of a main part of a member of the refrigerator according to the first embodiment of the present invention.

FIG. 9 is a side sectional view of a refrigerator according to a second embodiment of the present invention.

FIG. 10 is a front view of a refrigerator of a refrigerator according to a second embodiment of the present invention.

FIG. 11 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 greenhouse 20 Compressor 21, 25 Cooler 22, 26, 29 Blower 23, 27, 28, 30 Cold air passage 28a Central passage (second passage) 28b Side passage (first passage) 28c Insulating member 36 Insulating member 42 Member 50 Deodorizing section 51 Illumination lamp 53 Lighting cover 54 Ceiling duct 61, 62 Defrosting heater 65 Damper 70 Back Face plate

Claims (15)

[Claims] 1. A storage room for storing stored goods, a cooler for generating cool air flowing into the storage room, a cool air passage for guiding the cool air to the storage room, and cold heat generated by cool air flowing through the cooling passage. And a heat insulating member disposed on at least a part of the member on the side of the cooling passage. 2. A storage room for storing stored goods, a cooler for generating cool air flowing into the storage room, and a cool air passage provided through the storage room and the partition while guiding the cool air to the storage room. A member that forms at least a part of the partition wall and discharges cold heat due to cold air flowing in the cooling passage into the storage chamber; and a heat insulating member disposed on at least a part of the member on the cooling passage side. A refrigerator comprising: 3. The refrigerator according to claim 1, wherein the member comprises a cold storage member for storing cold heat or a heat conductive member having a heat conductive function. 4. The cold air passage has a plurality of branched passages, and the heat insulating member is provided on at least a part of the branch passage on the member side.
The refrigerator according to claim 3. 5. The cold air passage according to claim 1, wherein the cold air passage has first and second branched passages, and the heat insulating member is arranged in the first passage. refrigerator. 6. The refrigerator according to claim 5, wherein the air in the storage chamber is guided into the second passage so as to be mixed with the cool air cooled by the cooler. 7. A blower is provided on a path of the cool air cooled by the cooler and sucks air in the storage chamber through an opening, and the opening is formed outside the path of the cool air. The refrigerator according to claim 6, wherein: 8. The refrigerator according to claim 7, wherein a guide portion for guiding the cool air to the opening portion and guiding the cool air to the blower is provided in the second passage. 9. The refrigerator according to claim 4, wherein the second passage is disposed substantially at the center of the member in the horizontal direction. 10. A storage device according to claim 1, wherein said member is disposed on a back surface of said storage room, and a discharge portion for discharging cool air from said first passage into said storage room is substantially at a center between a side wall of said storage room and a side wall of said second passage. 10. The refrigerator according to claim 9, wherein the refrigerator is provided. 11. The cooling device according to claim 1, wherein an opening for discharging cool air to the storage chamber communicating with the cool air passage is provided behind the member. refrigerator. 12. The cooling air passage is arranged behind the storage room, and a plurality of discharge portions communicating with the cooling air passage are formed in a wall of the storage room outside the member. The refrigerator according to any one of claims 1 to 10. 13. The refrigerator according to claim 11, wherein a rib for guiding cool air to the discharge section is provided in the first passage. 14. A ceiling duct of the storage room is provided with a ceiling duct communicating with the cool air passage, and a plurality of ceiling discharge units for discharging cool air toward the storage room are provided separately on the left and right of the ceiling duct. The refrigerator according to any one of claims 1 to 13, wherein: 15. The refrigerator according to claim 1, wherein the member is detachable.