JP7224502B2 - refrigerator - Google Patents

Description

This technology relates to refrigerators. In particular it concerns the cooling of the entire storage compartment.

2. Description of the Related Art Conventionally, there is a refrigerator in which cool air, which is cooled air, is distributed throughout even if the amount of objects to be cooled in a storage compartment inside the refrigerator is large. For example, in some refrigerators in which objects to be cooled such as food are placed on the upper surface of the shelf plate, wing members are arranged in the vicinity of the cold air outlet and ribs are arranged on the lower surface of the shelf plate (for example, Patent Document 1). reference). In this refrigerator, it is possible to efficiently cool the object to be cooled on the shelf by guiding the cooled air to the lower surface of the shelf.

In addition, in a drawer-type refrigerator, a method is known in which cold air is spread throughout the storage container even when a large amount of objects to be cooled are stored in the storage container by providing a cold air outlet above the storage container ( For example, see Patent Document 2).

JP 2014-159894 A JP-A-2000-046455

In recent years, with changes in lifestyles such as an increase in double-income households and single-person households, there is a strong tendency to buy a large amount of ingredients at once and store them in refrigerators. At the same time, the capacity of refrigerators is increasing. Under these circumstances, there is a demand for a refrigerator capable of efficiently cooling the entire storage compartment without reducing the practical storage volume by minimizing the portion where the object to be cooled cannot be stored.

The refrigerator described in Patent Document 1 enables uniform cooling even when there are many objects to be cooled by arranging the wing members and ribs on the lower surface of the shelf plate. However, in the refrigerator of Patent Document 1, the wing members are arranged on the lower surface of the shelf plate, so that when the object to be cooled is placed on the shelf plate one step below the shelf plate, the object to be cooled is placed on the lower shelf plate. It gets caught on the member and cannot be placed in the back of the shelf board. Therefore, in the refrigerator of Patent Document 1, the practical storage volume is reduced.

Further, the refrigerator described in Patent Document 2 uniformly cools the inside of the storage container by allowing cooled air to flow in from above the storage container. However, the refrigerator of Patent Literature 2 not only has a complicated structure, but also secures a cool airflow path by allocating an area that can be used as a storage area. As a result, the storage capacity for actually storing the object to be cooled is reduced in the refrigerator disclosed in Patent Document 2 as well, impairing convenience for the user.

In view of the above, it is an object of the present invention to provide a refrigerator capable of supplying cooled air while ensuring a practical storage capacity, in order to solve the above problems of the refrigerator.

In order to solve the conventional problems as described above, the refrigerator disclosed herein includes an upper wall serving as an upper wall of a storage chamber in which the object to be cooled is stored, an upper storage container for storing the object to be cooled, A lower storage container that stores the object to be cooled and the bottom of the upper storage container faces upward, and an upper cold air blower that is an opening through which the cold air sent from outside the storage chamber blows out and passes into the upper storage container. an outlet and a side wall of the storage chamber having a lower cold air outlet that is an opening through which cold air passes from the rear top of the lower storage container into the lower storage container, the upper cold air outlet having a height of In terms of direction, the upper end is placed at a position that matches the height of the wall surface of the upper wall or at a position where cold air blows along the wall surface, and the upper cold air outlet is located at the right end of the upper cold air outlet when viewed from the cold air blowing direction. and the left end, the distance in the height direction between the rear end in the blowing direction and the wall surface is the distance in the height direction between the front end in the blowing direction and the wall surface One or more horizontal guide plates are arranged as described above, and the upper wall has wall ribs that protrude downward and supply cold air blown out from the upper cold air outlet along the upper wall into the upper storage container. It is arranged on the wall surface, and the lower cold air outlet is arranged at a position where the bottom and the upper end of the upper storage container are aligned or close to each other, and the wall of the bottom wall of the upper storage container is also provided with wall ribs to blow out from the lower cold air outlet. It supplies cool air to the lower storage container .

According to the refrigerator according to this disclosure, the cold air emitted from the cold air outlet is directed along the wall surface of the upper wall of the storage compartment, and the wall surface ribs arranged on the wall surface guide the cold air. Therefore, it is possible to efficiently supply cold air to the entire storage compartment while securing a practical storage volume without providing a special member and space for supplying cold air to the entire storage compartment.

1 is a front view schematically showing the appearance of a refrigerator according to Embodiment 1; FIG. It is a figure explaining the structure inside a refrigerator when the refrigerator which concerns on Embodiment 1 is seen from the side surface side. 2 is a longitudinal sectional view schematically showing the internal configuration of a freezer compartment in the refrigerator according to Embodiment 1. FIG. FIG. 2 is a diagram schematically showing a state in which the partition walls and the like in the refrigerator according to Embodiment 1 are seen through from the upper surface side; 4 is an enlarged vertical cross-sectional view schematically showing an example of the shape of wall ribs provided in the refrigerator according to Embodiment 1. FIG. 3 is a perspective view showing a main part of upper cold air outlet 27a provided in refrigerator 100 according to Embodiment 1. FIG. FIG. 10 is a diagram schematically showing a state in which the partition walls and the like in the refrigerator according to Embodiment 2 are seen transparently from the upper surface side; FIG. 11 is a vertical cross-sectional view of a freezer compartment in a refrigerator according to Embodiment 3;

Hereinafter, refrigerators according to embodiments will be described with reference to the drawings and the like. In the following drawings, the same reference numerals denote the same or corresponding parts, and are common throughout the embodiments described below. The forms of the constituent elements shown in the entire specification are merely examples, and are not limited to the forms described in the specification. In particular, the combination of components is not limited only to the combinations in each embodiment, and the components described in other embodiments can be applied to other embodiments. Also, in the following description, the upper side of the drawing is referred to as "upper" and the lower side is referred to as "lower". Furthermore, for ease of understanding, directional terms (e.g., "right", "left", "front", "back", etc.) are used as appropriate; Terminology does not limit the disclosure. The vertical direction of the refrigerator when viewed from the front (front) side facing the opening/closing door is defined as the height direction, the left/right direction is defined as the width direction, and the front/rear direction is defined as the front-back direction (depth direction). In addition, regarding the expression of the positional relationship of the constituent elements in the following description, the term “parallel” does not necessarily mean only mathematical parallelism in which planes do not intersect even if they are enlarged infinitely. It shall also include meaning. In addition, in the drawings, the size relationship of each component may differ from the actual size.

Embodiment 1.
FIG. 1 is a front view schematically showing the appearance of a refrigerator according to Embodiment 1. FIG. FIG. 2 is a diagram for explaining the configuration inside the refrigerator when the refrigerator according to Embodiment 1 is viewed from the side. Furthermore, FIG. 3 is a longitudinal sectional view schematically showing the internal configuration of the freezer compartment in the refrigerator according to Embodiment 1. As shown in FIG.

As shown in FIGS. 1 and 2, refrigerator 100 of Embodiment 1 includes refrigerating compartment 1 having refrigerating compartment opening/closing door 11 at the top. The refrigerator 100 also includes a vegetable compartment 2 having a vegetable compartment opening/closing door 12 in the lower portion of the refrigerating compartment 1 . The refrigerator 100 also has a freezer compartment 3 with a freezer compartment opening/closing door 13 at the bottom. Refrigerator 100 includes refrigerator compartment 1, vegetable compartment 2, and freezer compartment 3 as storage compartments. The refrigerating chamber 1 is controlled so that the inside of the chamber is in a refrigerating temperature range of +3° C. to 10° C., and stores objects to be cooled such as food. The interior of the vegetable compartment 2 is controlled, for example, so that the inside of the compartment is in a refrigerating temperature range of +3° C. to 10° C., and stores objects to be cooled such as vegetables. The freezer compartment 3 is controlled, for example, so that the inside of the room is in a freezer temperature range of -17° C. or lower, and the object to be cooled can be stored for a long period of time. The freezer compartment 3 also includes an ice making compartment 4, as will be described later, for making and storing ice.

Moreover, as shown in FIG. 2, the refrigerator 100 of Embodiment 1 is provided with a box-shaped heat insulating box body 110 . Refrigerator 100 is partitioned into a plurality of storage compartments by heat insulating box body 110 . A gasket component 14 for suppressing heat leakage is arranged between the heat insulating box 110 and the opening/closing door of each storage compartment. Since the gasket component 14 suppresses heat leakage, the inside of the storage compartment of the refrigerator 100 can be maintained at a low temperature. Refrigerator 100 has machine room 5 and cooling room 6 in the lower back of refrigerator 100 partitioned by heat insulating box 110 . Various devices such as a compressor 20 are housed in the machine room 5 . Various devices such as an evaporator 21 and a blower 22 are accommodated in the cooling chamber 6 .

Refrigerator 100 also has a refrigeration cycle device inside. The refrigeration cycle device cools the air in the storage compartment. The refrigerating cycle apparatus includes, as specific components, a compressor 20, a condenser (not shown), an expansion valve (not shown), and an evaporator 21 serving as a cooler. These components are connected by pipes to form an annular refrigerant circuit in which the refrigerant circulates.

The compressor 20 sucks and compresses the refrigerant from the evaporator 21, and discharges high-temperature and high-pressure refrigerant to the condenser. Also, the evaporator 21 exchanges heat between the refrigerant and the air passing through the cooling chamber 6 to generate cold air, which is cooled air. The blower 22 generates an airflow of cool air in the cold air passage 7 leading from the cooling chamber 6 to each storage compartment, and the cold air generated by the evaporator 21 is sent to the refrigerator compartment 1, the vegetable compartment 2, and the freezer compartment 3, which are storage compartments. supply to The cool air that has passed through each storage compartment returns to the cooling compartment 6 via the cool air return air path 8, is cooled again by the evaporator 21 in the cooling compartment 6, and is sent to each storage compartment.

Next, based on FIG. 3, the configuration and the flow of cold air in the lowest freezer compartment 3 among the storage compartments in the refrigerator 100 will be described. However, it can also be applied to other storage compartments such as the refrigerator compartment 1 and the vegetable compartment 2 . As shown in FIG. 3 , a drawer-type freezer compartment open/close door 13 is provided on the front surface of the freezer compartment 3 . The freezer compartment opening/closing door 13 has a support 15 that supports the lower storage container 23 . Also, the upper storage container 24 is placed above the lower storage container 23 so that the side bottom slides on the upper side of the lower storage container 23 . By pulling the freezer compartment opening/closing door 13, the lower storage container 23 supported by the support 15 and the upper storage container 24 placed on the lower storage container 23 are pulled out. By pushing the upper storage container 24, the upper part of the lower storage container 23 is opened, and food stored in the lower storage container 23 can be taken in and out.

A partition wall 25 made of a heat insulator serves as a wall separating the freezer compartment 3 and the vegetable compartment 2 . Since the freezer compartment 3 is below the vegetable compartment 2 , the partition wall 25 serves as the upper wall of the freezer compartment 3 . Here, it is assumed that the partition wall 25 is a part of the heat insulating box 110, but it is not limited to this. In refrigerator 100 of Embodiment 1, cooling chamber 6 described above is formed on the rear side of freezer chamber 3 by heat insulating box body 110 and first air passage component 26 . The cooling chamber 6 is provided with the evaporator 21 described above. Above the evaporator 21, the blower 22 described above is arranged.

The cold air generated by the evaporator 21 in the cooling chamber 6 passes through the cold air passage 7 and is sent to the distribution air passage 9 by the airflow of the blower 22 . The distribution air passage 9 is an air passage composed of a first air passage component 26 and a second air passage component 27 . The second air passage component 27 is a component that serves as a wall on the rear side of the freezer compartment 3 . The second air passage component 27 has an opening that allows the distribution air passage 9 and the space of the freezer compartment 3 to communicate with each other. The upper cool air outlet 27a is an opening through which cool air passes from the rear upper portion of the upper storage container 24 toward the interior of the upper storage container 24 . The lower cold air outlet 27b is an opening through which cool air passes from the rear upper portion of the lower storage container 23 toward the inside of the lower storage container 23. As shown in FIG. Therefore, the cool air passage 7 and the distribution air passage 9 communicate with each other from the blower 22 to the upper cool air outlet 27a. Further, the area from the blower 22 to the lower cold air outlet 27b is also communicated with the cold air passage 7 and the distribution air passage 9. As shown in FIG. Here, the second air passage component 27 of the refrigerator 100 of Embodiment 1 further has an ice-making cold air outlet 27c that supplies cold air to the ice-making chamber 4 inside the freezer compartment 3, as described later.

In refrigerator 100 of Embodiment 1, the upper end of upper cold air outlet 27a is arranged at a position that coincides with or is close to partition wall surface 25a that is the lower surface side of partition wall 25 in the height direction. Since the upper cool air outlet 27a is aligned with or close to the partition wall surface 25a, the cool air emitted from the upper cool air outlet 27a is blown out along the partition wall surface 25a. Here, the reason why cool air flows along the partition wall surface 25a will be described. The air between the partition wall 25a and the upper end of the upper cool air outlet 27a is pulled by the outer edge of the cold air due to its viscosity. The entrained air is carried downstream. Therefore, the pressure between the partition wall surface 25a and the upper end of the upper cold air outlet 27a decreases. Since the cool air flows in the direction of lower pressure, the cool air coming out of the upper cool air outlet 27a exerts a force toward the partition wall surface 25a. As a result, the cool air emitted from the upper cool air outlet 27a collides with the partition wall surface 25a and flows along the partition wall surface 25a so as to adhere to the partition wall surface 25a.

Here, according to Newton's law of viscosity, the greater the speed difference between the flow velocity of the cool air blown out from the upper cool air outlet 27a and the flow velocity of the air flowing through the chamber, the stronger the viscosity, and the stronger the force that pulls the cool air toward the partition wall surface 25a. works. Also, the closer the upper cool air outlet 27a in the height direction is to the partition wall surface 25a, the easier it is for the blown cool air to collide with the partition wall surface 25a. In view of the above, the upper end of the upper cold air outlet 27a should be located at a position that coincides with or close to the partition wall surface 25a in the height direction, and arranged so that cold air is blown out along the wall surface. is requested.

In order to secure the flow velocity of the cool air emitted from the upper cold air outlet 27a, the upper cool air outlet 27a is made to have a smaller cross-sectional area in the direction perpendicular to the blowing direction. More preferably, the cross-sectional area of the upper cold air outlet 27a in the direction perpendicular to the blowing direction is Configured to have the smallest cross-sectional area. With such a configuration, the cool air sent by the blower 22 increases its flow velocity at the upper cool air outlet 27a and blows out as a jet. The cold air blown out from the upper cold air outlet 27a has a higher flow velocity as a jet, and thus the force directed toward the partition wall surface 25a increases, and the cold air more reliably collides with the partition wall surface 25a. Here, wall surface ribs 28 protruding downward are arranged on the partition wall surface 25a. Here, the wall rib 28 and the partition wall 25 may be integrally formed.

FIG. 4 is a schematic view of the partition walls and the like in the refrigerator according to Embodiment 1, as seen transparently from the upper surface side. Here, as shown in FIG. 4 , refrigerator 100 according to Embodiment 1 includes ice making compartment 4 in freezer compartment 3 . The ice making compartment 4 is located above the freezing compartment 3 , and ice made in the ice making compartment 4 can be stored using a portion of the upper storage container 24 . In refrigerator 100 of Embodiment 1, ice making cold air outlet 27c for blowing cold air into ice making chamber 4 is arranged. The ice-making cold air outlet 27c is formed by the distribution air passage 9. As shown in FIG.

Further, as shown in FIG. 4 , the wall surface ribs 28 according to Embodiment 1 are arranged to cool the inside of the upper storage container 24 excluding the ice making chamber 4 in the freezer compartment 3 . The wall rib 28 is a member that blows out from the upper cool air outlet 27a, adheres to the partition wall surface 25a, regulates part of the cool air along the partition wall surface 25a, and guides it in a predetermined direction. The wall ribs 28 supply cold air from above the upper storage container 24 into the upper storage container 24 while spreading the cold air guided along the wall ribs 28 over the entire upper storage container 24 . Therefore, it is not desirable for the wall rib 28 to be so high as to completely restrict the flow along the partition wall 25a. On the one hand, the wall ribs 28 need to be high enough to keep the cold air along and redirect it into the upper storage container 24 . Therefore, wall surface rib 28 in refrigerator 100 of Embodiment 1 is configured to have a height smaller than the distance between partition wall surface 25a and the lower end of upper cool air outlet 27a.

Further, as shown in FIG. 4, the wall surface ribs 28 are arranged radially outward from the center of the upper cold air outlet 27a. With this arrangement, on the partition wall surface 25a, the wall surface ribs 28 have the effect of spreading the cool air and the effect of guiding the cool air into the container. Therefore, the distance L1 between the rear end of the wall surface rib 28 farther from the center of the upper cold air outlet 27a and the wall on the far side is should be greater than the distance L2 between the walls of the Therefore, as shown in FIG. There is a relationship of L1>L2.

By arranging the wall surface ribs 28 having the specified height as described above, the cool air blown out from the upper cool air outlet 27a and adhering to the partition wall surface 25a as indicated by the arrows in FIG. flow along. Other cool air flows over the wall surface ribs 28 and flows toward the front side without being completely restricted. Then, the cold air is supplied into the upper storage container 24 while spreading over the surface of the partition wall surface 25a. Therefore, the inside of the upper storage container 24 can be uniformly cooled.

Here, as shown in FIG. 4 , in refrigerator 100 according to Embodiment 1, a plurality of wall surface ribs 28 described above are installed on partition wall surface 25 a of freezer compartment 3 . In FIG. 4, the plurality of wall surface ribs 28 are radially arranged from the upper cool air outlet 27a toward the freezer compartment opening/closing door 13 in order to efficiently spread the cold air adhering to the partition wall surface 25a. However, the wall surface ribs 28 only need to change the direction of the cold air so that the cold air is supplied into the upper storage container 24 while spreading the cold air over the entire freezer compartment 3 along the partition wall surface 25a. For this reason, the wall surface ribs 28 are not limited to being radially arranged, but may be arranged in a direction perpendicular to the direction in which cool air is blown from the upper cold air outlet 27a. At this time, the distance between the rear end of the wall rib 28 arranged closer to the upper cool air outlet 27a and the front end of the upper cool air outlet 27a is the distance between the wall rib 28 arranged farther from the upper cool air outlet 27a. It is longer than the distance between the rear end and the front end of the upper cold air outlet 27a.

FIG. 5 is an enlarged vertical cross-sectional view schematically showing an example of the shape of wall ribs provided in the refrigerator according to Embodiment 1. FIG. FIG. 5 is based on a cross-section along line AA shown in FIG. As shown in FIG. 5, the wall surface rib 28 has a sloped surface facing the inner wall of the freezer compartment 3, and has an oblique cross-sectional shape. Since each wall surface rib 28 has such a shape, when the user takes out food or the like from the upper storage container 24, the wall surface ribs 28 arranged on the partition wall surface 25a do not interfere with taking out. ing.

FIG. 6 is a perspective view showing a main part of upper cool air outlet 27a provided in refrigerator 100 according to the first embodiment. The upper cool air outlet 27a of the first embodiment is configured such that the widthwise distance between the right end and the left end is greater than the heightwise distance between the top end and the bottom end. Therefore, the cool air outlet in the upper cool air outlet 27a has a horizontally long shape. By configuring the upper cold air outlet 27a to be horizontally long, the cool air emitted from the upper cool air outlet 27a has a flat shape in the direction perpendicular to the blowing direction. When the cool air blown out in a flat shape from the upper cool air outlet 27a adheres to the partition wall surface 25a, the effect of the wall ribs 28 and the effect of the wall surface ribs 28 work together to spread the cool air more reliably on the partition wall surface 25a.

As shown in FIG. 6, one or more horizontal guide plates 29 are arranged between the upper end and the lower end of the upper cold air outlet 27a so as to be parallel to the partition wall surface 25a. Since the upper cool air outlet 27a has the horizontal guide plate 29, cool air passing through the upper cool air outlet 27a from the cool air passage 7 or the distribution air passage 9 is blown out in a direction parallel to the partition wall surface 25a. For this reason, the lateral guide plate 29 prevents the discharged cold air from adhering in the direction along the partition wall surface 25a and preventing the cold air from blowing into the upper storage container 24 without being homogenized.

Here, the horizontal guide plate 29 is installed to prevent the cool air blown from the upper cool air outlet 27a from flowing without adhering to the partition wall surface 25a. Therefore, in order to blow cool air onto the partition wall surface 25a, the direction of the horizontal guide plate 29 should be parallel or upward rather than parallel so that the blown cool air hits the partition wall surface 25a. Based on the above, the distance between the rear end of the lateral guide plate 29 in the height direction and the partition wall surface 25a is the tip of the lateral guide plate 29 in the height direction. It is required to be arranged so as to be at least the distance between the part and the partition wall surface 25a.

Furthermore, the upper cold air outlet 27 a of Embodiment 1 includes one or more vertical guide plates 30 perpendicular to the horizontal guide plates 29 . By installing the vertical guide plate 30 at the upper cold air outlet 27a, the flow of cold air in the left-right direction can be controlled at the upper cool air outlet 27a. The flat cool air further spreads in the left-right direction and flows, promoting the action of spreading the cool air by the partition wall surface 25a and the wall surface ribs 28. As shown in FIG. Here, a cold air return air passage 8 is formed in the lower rear portion of the freezer compartment 3 by the heat insulating box body 110 and the first air passage component 26 . The cool air that has flowed into the upper storage container 24 circulates within the upper storage container 24 as indicated by arrows in FIG. The cold air then returns to the cooling chamber 6 through the cold air return air passage 8 from the rear of the upper storage container 24 and is cooled again by the evaporator 21 .

As described above, refrigerator 100 of Embodiment 1 has upper cool air outlet 27a arranged at a position where the upper end coincides with or is close to partition wall surface 25a positioned above upper storage container 24 . The upper cold air outlet 27a has a lateral guide plate 29 whose rear end is at a distance equal to or greater than the distance between the front end and the partition wall 25a. At this time, the lateral guide plate 29 is parallel to the partition wall surface 25a or directed upward. Therefore, the cool air passing through the upper cool air outlet 27a adheres to the partition wall surface 25a and can flow along the partition wall surface 25a.

In refrigerator 100 of Embodiment 1, partition wall 25 has wall surface ribs 28 projecting downward from partition wall surface 25a. For this reason, the wall surface ribs 28 can not only guide the cold air flowing along the partition wall surface 25 a in the direction of spreading, but also guide the cold air into the upper storage container 24 . Therefore, the cold air guided by the wall ribs 28 can uniformly cool the inside of the upper storage container 24 while spreading along the partition wall surface 25a. Therefore, uneven cooling can be prevented, and dew condensation, cold air leakage, and the like can be prevented.

In addition, by arranging the wall surface ribs 28, even when a large amount of food is stored in the upper storage container 24, an air passage corresponding to the height of the wall surface ribs 28 is provided between the partition wall surface 25a and the food. can be secured. The tip of the upper cold air outlet 27a is arranged at a position behind the rear end of the bottom surface of the upper storage container 24 in the depth direction. Therefore, in refrigerator 100 according to Embodiment 1, there is a certain gap between upper cold air outlet 27a and food, etc., and cold air is not blocked. Therefore, the cold air adhering to the partition wall surface 25a is efficiently sent into the upper storage container 24 through the air passage corresponding to the height of the wall surface ribs 28 .

In the refrigerator 100 of Embodiment 1, the distance between the lower end of the wall rib 28 closer to the upper cool air outlet 27a and the partition wall surface 25a is the wall rib farther from the upper cool air outlet 27a. 28 and the partition wall surface 25a. Therefore, when the user takes out food or the like, it is possible to eliminate the troublesomeness of the food or the like getting caught on the wall surface ribs 28 . Thereby, convenience in using the refrigerator 100 can be enhanced. Further, by forming the wall rib 28 in such a shape, the pressure loss when the cold air along the partition wall 25a collides with the wall rib 28 can be reduced. The wall ribs 28 allow the cold air from the upper cold air outlet 27a to spread along the partition wall surface 25a and flow toward the upper storage container 24. As shown in FIG. Therefore, the cool air diffuses before it reaches the vicinity of the freezer compartment open/close door 13, which is in contact with the outside air. Since cold air flowing near the freezer compartment opening/closing door 13 can be suppressed, the effect of shielding cold air leakage can be enhanced.

In addition, the positional relationship between the upper cool air outlet 27a and the partition wall surface 25a and the provision of the horizontal guide plate 29 to the upper cool air outlet 27a allow the cool air jet to adhere to the partition wall surface 25a. As described above, even without providing a member that inhibits storage, the cold air can be uniformly distributed throughout the freezer compartment 3 without reducing the practical storage volume. Therefore, even when a large amount of objects to be cooled such as foodstuffs are stored, efficient cooling can be performed.

Embodiment 2.
FIG. 7 is a schematic view of the partition walls and the like in the refrigerator according to Embodiment 2, as seen transparently from the upper surface side. FIG. 7 corresponds to FIG. 4 of the first embodiment. Refrigerator 100 of the second embodiment described here differs from refrigerator 100 of the configuration of the first embodiment in that it does not have ice-making cold air outlet 27c. Refrigerator 100 of Embodiment 1 does not have wall ribs 28 on the upper side of ice making compartment 4, but refrigerator 100 of Embodiment 2 has wall ribs 28 over the entire partition wall surface 25a. different in that

Next, an example of the configuration of refrigerator 100 according to Embodiment 2 will be described with reference to FIG. As shown in FIG. 7, in the refrigerator 100 of Embodiment 2, the wall surface ribs 28 extend from the upper cool air outlet 27a on the rear side of the refrigerator 100 to the freezer compartment opening/closing door 13 on the front side on the entire surface of the partition wall surface 25a. arranged radially. Here, the wall surface rib 28 installed at the position closest to the upper cold air outlet 27a is arranged across the ice making chamber 4 from the front of the outlet. By arranging the wall surface ribs 28 in this way, the low-temperature cold air blown out from the upper cold air outlet 27a and adhered to the partition wall surface 25a is preferentially led to the ice making chamber 4, and flows inside the ice making chamber 4. Allow to cool.

As described above, in refrigerator 100 of Embodiment 2, ice-making cool air outlet 27c is removed and cool air is blown out from upper cool air outlet 27a, thereby increasing the flow rate of cool air blown out from upper cool air outlet 27a. , can also increase the flow velocity. Therefore, it is possible to promote adhesion of the cool air to the partition wall surface 25a and to effectively uniform the cool air by the partition wall surface 25a and the wall surface ribs 28. FIG.

Embodiment 3.
8 is a longitudinal sectional view of a freezer compartment in a refrigerator according to Embodiment 3. FIG. Refrigerator 100 of Embodiment 3 described here differs from refrigerator 100 having the configuration of Embodiment 1 or Embodiment 2 in that wall surface ribs 28 are provided on the bottom surface of upper storage container 24 . . Further, the lower cold air outlet 27b described in the first embodiment is arranged at a position where the bottom surface and upper end of the upper storage container 24 located above the lower storage container 23 are aligned or close to each other.

Next, an example of the configuration of refrigerator 100 according to Embodiment 3 will be described with reference to FIG. In FIG. 8, the bottom surface of the upper storage container 24 serves as a wall separating the storage space of the upper storage container 24 and the storage space of the lower storage container 23 . For this reason, similar to the partition wall 25, by arranging wall ribs 28 on the bottom wall of the upper storage container 24, which serves as the upper wall of the lower storage container 23, the upper storage container 24 is similarly arranged on the lower storage container 23. The inside can be cooled uniformly.

In addition, since cold air flows along the bottom surface of the upper storage container 24, the wall ribs 28 not only diffuse the cold air to the lower storage container 23, but also cool the upper storage container 24 from the bottom side. In particular, when the upper storage container 24 contains a large amount of food, in addition to being able to efficiently cool from above the upper storage container 24, it is also possible to cool from the bottom surface of the upper storage container 24. . Therefore, refrigerator 100 of the third embodiment can cool the object to be cooled in upper storage container 24 more effectively.

Embodiment 4.
In the refrigerator 100 of Embodiments 1 to 3 described above, the freezer compartment 3 has been described as an example of the storage compartment, but the storage compartment is not limited to this, and can be applied to other storage compartments. can be done. For this reason, wall surface ribs 28 may be provided on the upper walls of other storage compartments in refrigerator 100 other than partition walls 25 formed by heat insulating box body 110 or the like.

Further, in the refrigerator 100 of Embodiments 1 to 3 described above, the second air passage component 27 serving as the rear side wall of the freezer compartment 3 has the upper cool air outlet 27a and the lower cool air outlet 27b, Cold air is blown out from the rear side of the freezer compartment 3 toward the front side. However, it is not limited to this. A cold air outlet may be installed on the side.

1 refrigerator compartment 2 vegetable compartment 3 freezer compartment 4 ice making compartment 5 machine compartment 6 cooling compartment 7 cool air passage 8 cool air return air passage 9 distribution air passage 11 refrigerator compartment opening/closing door 12 vegetable compartment opening/closing Door, 13 Freezing compartment opening/closing door, 14 Gasket part, 15 Supporting tool, 20 Compressor, 21 Evaporator, 22 Blower, 23 Lower storage container, 24 Upper storage container, 25 Partition wall, 25a Partition wall surface, 26 First air passage Parts 27 Second air passage part 27a Upper cold air outlet 27b Lower cold air outlet 27c Ice making cold air outlet 28 Wall rib 29 Horizontal guide plate 30 Vertical guide plate 100 Refrigerator 110 Insulation box.

Claims (9)

an upper wall serving as an upper wall of the storage chamber in which the object to be cooled is stored;
an upper storage container for storing the object to be cooled;
a lower storage container for storing the object to be cooled, the bottom surface of the upper storage container facing upward;
Cold air sent from outside the storage chamber is blown out and directed into the upper storage container, from an upper cold air outlet, which is an opening through which the cold air passes, and from the rear upper part of the lower storage container into the lower storage container. a side wall of the storage chamber having a lower cold air outlet that is an opening through which the cool air passes ;
with
The upper cold air outlet is arranged in a height direction such that the upper end thereof matches the height of the wall surface of the upper wall or the cold air is blown along the wall surface,
In the upper cold air outlet, there are provided between the right end and the left end of the upper cool air outlet when viewed from the cold air blowing direction, and between the rear end with respect to the blowing direction and the wall surface. one or more horizontal guide plates are arranged such that the distance in the height direction is equal to or greater than the distance in the height direction between the portion that is the front end in the blowing direction and the wall surface;
The upper wall is provided with a wall surface rib that protrudes downward and supplies the cold air blown out from the upper cold air outlet along the upper wall into the upper storage container ,
the lower cold air outlet is disposed at a position where the bottom surface and the upper end of the upper storage container are aligned or close to each other;
wall ribs are also disposed on the bottom wall of the upper reservoir;
A refrigerator that supplies the cold air blown from the lower cold air outlet to the lower storage container . 2. The cool air outlet according to claim 1, wherein a cross-sectional area of the cold air outlet in a direction perpendicular to the blowing direction is smaller than a cross-sectional area of an air passage extending from the blower for sending the cool air to the cool air outlet. refrigerator. 3. The refrigerator according to claim 1, wherein the cool air outlet has a shape in which the distance between the right end and the left end is longer than the distance between the top end and the bottom end. The cool air outlet has one or more vertical guide plates perpendicular to the horizontal guide plates between the upper end and the lower end of the cool air outlet. Refrigerator as described. A plurality of the wall surface ribs are installed on the wall surface of the upper wall, and the distance between the rear end of the wall surface rib farther from the center of the cool air outlet and the inner wall of the wall surface rib is equal to the cool air of the wall surface rib. 5. The refrigerator according to any one of claims 1 to 4, wherein the distance between the rear end closer to the center of the air outlet and the inner wall is greater than the distance. 6. The refrigerator according to any one of claims 1 to 5, wherein the wall surface rib has a projecting portion whose height is lower than the distance between the upper wall and the lower end of the cold air outlet. A plurality of said wall ribs are provided on said wall surface of said upper wall, and a surface of said wall rib facing a wall on the far side is a slope, and a cross-sectional shape is oblique. or the refrigerator according to item 1. 2. The cool air outlet has a front end portion thereof with respect to the blowing direction, which is located rearward with respect to the blowing direction of a rear end portion of a bottom surface of a storage container accommodated in the storage chamber. The refrigerator according to any one of -claim 7. a cooler for cooling air to produce said cool air;
The refrigerator according to any one of claims 1 to 8 , further comprising an air blower that sends the cold air generated by the cooler to the cold air outlet.

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