JPWO2020157852A1 - refrigerator - Google Patents

Abstract

The purpose is to obtain a refrigerator that is easy to manufacture while suppressing dew on the door due to cold air. The present invention includes a partition wall for partitioning between a first storage chamber and a second storage chamber arranged vertically adjacent to each other among a plurality of storage chambers, and a heat insulating sheet attached to the partition wall. .. The partition wall is a wall structural member forming the lower surface of the first storage chamber and the upper surface of the second storage chamber, and the front side of the refrigerator body of the partition wall attached to the end of the wall structural member on the front side of the refrigerator body. The door is attached to the inner surface of the door, which is the surface of the door facing the first storage chamber, and closes the first storage chamber when the door is closed. It includes a gasket and a throat located inside the gasket on the inner surface of the door and projecting toward the first storage chamber. The partition wall front plate comes into contact with the gasket when the door is closed, and the partition wall front plate and the end of the wall structural member are combined to form a space for arranging the heating means, and the heat insulating sheet is the first. It is fixed below the throat on the underside of the storage chamber.

Description

The present invention relates to a refrigerator and relates to a structure for suppressing dew exposure to a storage chamber door.

In a freezer / refrigerator, the temperature difference between the freezer and the outside air is large, and dew tends to adhere to the door. The door of the freezing room is configured so that the cold air of the freezing room does not leak out by attaching a gasket to the surface facing the freezing room side. At the lower end surface of the freezing chamber door, cold air in the freezing chamber enters the gasket side from between the throat and the upper surface of the partition wall forming the bottom surface of the freezing chamber, and the partition wall front plate on the front end surface of the partition wall. Lower the temperature of the door. Therefore, heat conduction from the front plate of the partition wall lowers the temperature of the lower end surface of the door of the freezing chamber, and dew occurs on the surface of the door that is below the dew point temperature. Such intrusion of cold air not only causes dew, but also causes a loss when the cold air circulates in the freezing chamber, which in turn leads to deterioration of energy saving efficiency.

In Patent Document 1, the door of the freezing chamber has a second sealing member located inside the freezing chamber with respect to the gasket as the first sealing member. The second sealing member is formed by integrally molding a soft plastic and a hard plastic. The door of the freezing chamber has a throat protruding toward the freezing chamber side, and a fixing member for attaching a second seal member is provided below the throat. The fixing member has a hollow portion, and is configured so that a second sealing member hard plastic portion can be attached therein. The cavity has a gap between the cavity and the hard plastic so that the hard plastic can move. With the above configuration, the second seal member can swing in the front-rear direction inside the refrigerator. Further, a convex portion protruding inward of the freezing chamber is provided on the upper surface of the partition wall forming the bottom surface of the freezing chamber, and the soft plastic constituting the second sealing member when the door of the freezing chamber is closed. And the inside of the freezer is sealed.

In Patent Document 2, the thickness of the upper partition plate is recessed to 10 to 50% on the upper surface of the upper partition plate constituting the partition wall for the purpose of suppressing heat intrusion from the opening of the partition wall into the inside of the freezing chamber. A hot edge cutting part is provided. A frontage heat insulating member (polyethylene foam or the like) that covers the exposure of the heat edge cutting portion to the freezing chamber side is fixed to the upper partition plate.

Japanese Unexamined Patent Publication No. 2003-172566 JP-A-2015-48953

The sealing structure by the second sealing member shown in Patent Document 1 includes an integrally molded product of a rigid plastic for fixing and a swinging rigid plastic and a soft plastic at the lower part of the throat, and a convex portion on the upper surface of the partition wall. Has a large number of parts. Therefore, the refrigerator is expensive, has a complicated structure, and is prone to malfunction.

In the structure shown in Patent Document 2, the end of the frontage heat insulating member on the freezer side is located on the back side of the freezer with respect to the tip of the throat. Therefore, there is a concern that the cold air that has fallen on the frontage heat insulating member along the throat may enter the metal contact member forming the front end surface of the partition wall and the gasket attached to the door. Further, since the upper partition plate is provided with the hot edge cutting portion, the fluidity of the resin is hindered in the resin molding of the upper partition plate, and a problem is likely to occur during molding.

The present invention is for solving the above-mentioned problems, and an object of the present invention is to obtain a refrigerator which is easy to manufacture while suppressing dew on the door due to cold air.

The refrigerator of the present invention has a refrigerator main body having a plurality of storage chambers, a door provided on the front surface of the refrigerator main body and closing the plurality of storage chambers, and the plurality of storage chambers arranged adjacent to each other one above the other. A partition wall for partitioning between the first storage chamber and the second storage chamber and a heat insulating sheet attached to the partition wall are provided, and the partition wall includes the lower surface of the first storage chamber and the first storage chamber. The wall structural member forming the upper surface of the storage chamber 2 and the partition wall front plate attached to the end of the wall structural member on the front side of the refrigerator body and forming the front end surface of the refrigerator body of the partition wall. The door is attached to the inner surface of the door, which is the surface of the door facing the first storage chamber, and closes the first storage chamber when the door is closed. The throat, which is located inside the gasket on the inner surface of the door and projects toward the first storage chamber, is provided, and the partition wall front plate comes into contact with the gasket when the door is closed. The partition wall front plate and the end portion of the wall structural member are combined to form a space for arranging the heating means, and the heat insulating sheet is below the throat in the lower surface of the first storage chamber. It is fixed.

By providing the above configuration, the present invention suppresses the intrusion of cold air from the freezing chamber that has fallen into the partition wall into the space between the partition wall front plate and the wall structural member. Then, the cold air is suppressed from reaching the heating means from the gap between the partition wall front plate and the wall structural member. Further, by fixing the heat insulating sheet on the lower side surface of the freezing chamber and below the throat, heat insulation is increased, and heat of the heating means is not dissipated by heat conduction from the wall structural member. Therefore, the temperature of the front plate of the partition wall rises, and the temperature of the door of the freezing chamber also rises, so that dew is suppressed. Since it has a simple structure in which the heat insulating sheet is only fixed in a predetermined position, it is possible to obtain a refrigerator that is easy to manufacture and low in cost while suppressing dew.

It is a perspective view of the refrigerator which concerns on Embodiment 1. FIG. It is sectional drawing of the refrigerator which concerns on Embodiment 1. FIG. It is an enlarged view of the part A of FIG. It is a perspective view of the inside of the freezing chamber of the refrigerator which concerns on Embodiment 1. FIG. It is a perspective view of the front end portion of the partition wall of the refrigerator which concerns on Embodiment 1. FIG. It is an enlarged cross-sectional view around the front end portion of the partition wall as a comparative example of the refrigerator which concerns on Embodiment 1. FIG. It is an enlarged cross-sectional view around the front end portion of the partition wall of the refrigerator which concerns on Embodiment 1. FIG. It is explanatory drawing of the installation position of the heat insulating sheet of the refrigerator which concerns on Embodiment 1. FIG. The result of the thermo-fluid analysis inside the freezing chamber of the comparative example of the refrigerator which concerns on Embodiment 1 is shown. The result of the thermo-fluid analysis inside the freezing chamber of the refrigerator which concerns on Embodiment 1 is shown. It is a figure which shows the temperature distribution inside the freezing chamber of FIG. It is a figure which shows the temperature distribution inside the freezing chamber of FIG.

Hereinafter, embodiments of the refrigerator according to the present invention will be described. The form of the drawings is an example, and does not limit the present invention. In addition, those having the same reference numerals in the respective figures are the same or equivalent thereof, which are common to the entire text of the specification. Further, in the drawings below, the relationship between the sizes of the constituent members may differ from the actual one.

Embodiment 1.
FIG. 1 is a perspective view of the refrigerator 100 according to the first embodiment. The refrigerator body 1 includes a box body 13 whose inside is divided into a plurality of storage chambers. The inside of the box body 13 has a refrigerating room 2, an ice making room 3, a switching room 4, a freezing room 5, and a vegetable room 6 in this order from the top. In the following description, the refrigerating room 2, the ice making room 3, the switching room 4, the freezing room 5, and the vegetable room 6 may be referred to as storage rooms, respectively. Each of the plurality of storage chambers is closed by a door attached to the box body 13 so as to be openable and closable. The refrigerating room 2 is closed by a left refrigerating room door 7 and a right refrigerating room door 8 having double doors that can be opened and closed. The ice making room 3 is closed by the ice making room door 9, the switching room 4 is closed by the switching room door 10, the freezing room 5 is closed by the freezing room door 11, and the vegetable room 6 is closed by the vegetable room door 12. In the following description, each of the left refrigerating room door 7, the right refrigerating room door 8, the ice making room door 9, the switching room door 10, the freezing room door 11, and the vegetable room door 12 may be referred to as doors. However, the arrangement of each storage room is not limited to the above. For example, a 3-door refrigerator in which the refrigerating room 2, the vegetable room 6, and the freezing room 5 are arranged in order from the top, or a 2-door refrigerator in which only the refrigerating room 2 and the freezing room 5 are arranged may be used. Further, in the refrigerator 100, the side on which the door is installed is referred to as a front surface, the surface on the opposite side facing the front surface is referred to as a back surface, and the front surface side is referred to as a front surface and the back surface side is referred to as a rear surface or a back surface.

The box body 13 in which a plurality of storage chambers are formed is covered with an outer box 14 in which the top surface and the side surface of the box body 13 are integrally formed. Urethane as a heat insulating material is filled between the inner box 15 forming the inner wall of each storage chamber.

FIG. 2 is a cross-sectional view of the refrigerator 100 according to the first embodiment. Inside the refrigerating chamber 2, shelves 2a and chilled chambers 2b on which stored items are placed are installed. Further, a shelf 2c is installed on the surface of the right refrigerating room door 8 facing the refrigerating room 2 side. Further, although not shown in FIG. 2, a shelf 2c is similarly installed on the left refrigerating room door 7.

The switching chamber 4 has a switching chamber case 4a arranged inside, and the switching chamber case 4a can be pulled out from the inside of the switching chamber 4 by pulling the switching chamber door 10. The freezing chamber 5 has an upper freezing case 16 and a lower freezing case 17 arranged inside. By pulling the freezing chamber door 11, the upper freezing case 16 and the lower freezing case 17 can be pulled out from the inside of the freezing chamber 5. In the vegetable compartment 6, a vegetable compartment case 18 and a vegetable compartment case 19 are arranged inside. By pulling the vegetable compartment door 12, the vegetable compartment case 18 and the vegetable compartment case 19 can be pulled out from the inside of the vegetable compartment 6. The door that closes each storage chamber has a gasket 28. The gasket 28 is attached to the surface of each door facing the storage chamber, and comes into contact with the front end surface of the refrigerator body 1 to suppress leakage of cold air from the storage chamber and heat intrusion from the outside. Is.

The refrigerator 100 has a cooler 20 on the back side of the freezing chamber 5. An air passage for sending air (cold air) cooled by the cooler 20 to the storage chamber is formed on the back side of the refrigerating chamber 2, the switching chamber 4, and the freezing chamber 5. A fan 21 is arranged in the air passage, and the fan 21 sends cold air upward. Further, a compressor 22 for compressing the refrigerant of the refrigeration cycle circuit is arranged in the lower part on the back side of the refrigerator 100.

Next, taking the freezing chamber 5 as an example, a structure for suppressing dew on the freezing chamber door 11 will be described. The freezing chamber 5 described below may be referred to as a first storage chamber, and the vegetable compartment 6 may be referred to as a second storage chamber. That is, among the storage chambers that are vertically adjacent to each other, the upper storage chamber may be referred to as a first storage chamber, and the lower storage chamber may be referred to as a second storage chamber. As shown in FIG. 2, on the inner surface of the freezing chamber 5, an air outlet 23 and a return port 24 for circulating cold air are provided inside the freezing chamber 5. The cold air generated by the cooler 20 is sent out from the air outlet 23 to the inside of the freezing chamber 5, passes between the partition wall 25 between the switching chamber 4 and the freezing chamber 5, and the upper freezing case 16, and the freezing chamber door. It flows toward the 11 side. After that, the cold air descends downward along the inner plate 26 forming the inner surface of the freezing chamber door 11, passes between the lower freezing case 17 and the partition wall 25, and returns to the return port 24.

FIG. 3 is an enlarged view of part A in FIG. The freezing room door 11 is composed of an inner plate 26, a gasket 28, a door cap 29, and a door plate 30. The door plate 30 is located in front of the refrigerator 100 and constitutes the appearance of the refrigerator 100. The door cap 29 is attached to the lower end of the door plate 30 and constitutes the lower end surface of the freezer door 11. The inner plate 26 constitutes the inner surface of the door, which is the surface of the freezing chamber door 11 facing the freezing chamber 5 side. The freezing chamber door 11 is filled with urethane as a heat insulating material 31 in the area surrounded by the inner plate 26, the door cap 29, and the door plate 30.

The inner plate 26 is provided with a throat 27 projecting toward the inside of the freezing chamber 5 at the lower portion. The throat 27 is located with a gap between it and the wall structural member 32 forming the lower side surface of the freezing chamber 5. Further, the inner surface of the freezing chamber door 11 is provided with a gasket 28 that comes into contact with the front end surface of the partition wall 25 and closes the freezing chamber 5. In the cross section shown in FIG. 3, the throat 27 is located above the gasket 28. Further, when the freezing chamber door 11 is viewed from the freezing chamber 5 side, the throat 27 is located inside the gasket 28, that is, closer to the center of the freezing chamber door 11. The inside of the gasket 28 is filled with urethane as a heat insulating material 31.

The partition wall 25 includes a wall structural member 32 that forms the upper surface of the partition wall 25, that is, the lower surface of the freezing chamber 5, and a wall structural member 33 that forms the lower surface of the partition wall 25, that is, the upper surface of the vegetable compartment 6. The space between the wall structural member 32 and the wall structural member 33 is filled with urethane as a heat insulating material 31.

A partition wall front plate 34 is attached to the front end of the wall structural member 32 on the front side of the refrigerator 100. In the cross section of the partition wall front plate 34, the upper end portion and the lower end portion project toward the back surface side of the refrigerator 100, and the projecting portion is inserted into the front end portion of the wall structural member 32 and attached. A condenser pipe 35 is installed in the space surrounded by the end of the wall structural member 32 and the partition wall front plate 34 to prevent dew exposure, and is located on the wall structural member 32 side of the condenser pipe 35, that is, on the back side of the refrigerator 100. A cushioning material 36 is arranged, and a heat insulating sheet 37 for keeping heat is arranged on the partition wall front plate 34 side of the condenser pipe 35, respectively. The condenser pipe 35 is also referred to as a heating means.

A heat insulating sheet 44 is attached and fixed to the upper surface of the wall structural member 32. The heat insulating sheet 44 is located below the throat 27 of the freezing chamber door 11, and is located on the front side of the refrigerator 100 with respect to the tip of the throat 27 protruding toward the back side of the freezing chamber 5. The upper surface of the heat insulating sheet 44 is located with a predetermined gap from the throat 27.

FIG. 4 is a perspective view of the inside of the freezing chamber 5 of the refrigerator 100 according to the first embodiment. FIG. 4 is a view showing a state in which the freezing chamber door 11, the upper freezing case 16, and the lower freezing case 17 are removed from the freezing chamber 5. The heat insulating sheet 44 is attached over the entire width of the lower surface of the freezing chamber 5. Further, the heat insulating sheet 44 is located above the front end portion of the partition wall 25 in which the condenser pipe 35 is arranged. The heat insulating sheet 44 has a role of heat insulating so that the heat of the condenser pipe 35 does not escape to the inside of the freezing chamber 5, and a sealing material for suppressing the cold air circulating inside the freezing chamber 5 from flowing to the gasket 28 side. Has a role as.

FIG. 5 is a perspective view of the front end portion of the partition wall 25 of the refrigerator 100 according to the first embodiment. FIG. 5 shows a state in which the partition wall front plate 34, the condenser pipe 35, the cushioning material 36, and the heat insulating sheet 37 are removed from the partition wall 25. In the cross section shown in FIG. 3, the upper end portion 60a and the lower end portion 60b of the wall structural member 32 constituting the upper surface of the partition wall 25 project to the front side. A wall portion 62 is provided between the upper end portion 60a and the lower end portion 60b. A windbreak sheet 45 is attached to the lower surface 61, which is the lower surface of the upper end 60a protruding from the front end of the wall structure member 32. The windbreak sheet 45 is attached to a part of the lower surface 61 of the upper end portion 60a in the width direction of the lower surface 61. The partition wall front plate 34 is fitted and fixed between the upper end portion 60a and the lower end portion 60b. The windbreak sheet 45 closes the gap 39 formed between the partition wall front plate 34 and the lower surface 61 of the upper end portion 60a of the wall structural member 32. The windbreak sheet 45 is made of a material that can be expanded and contracted according to the size of the gap 39, and is made of, for example, a resin material containing air bubbles. When the windbreak sheet 45 is made of a resin material containing bubbles, it is desirable to use closed cells instead of open cells so as not to allow air to pass through.

FIG. 6 is an enlarged cross-sectional view of the periphery of the front end portion of the partition wall 25 as a comparative example of the refrigerator 100 according to the first embodiment. FIG. 6 further enlarges and displays the periphery of the gasket 28 with respect to FIG. In the comparative example, the heat insulating sheet 44 is not arranged on the upper surface of the partition wall 25, and the windbreak that closes the gap 39 generated between the partition wall front plate 34 and the lower surface 61 of the upper end portion 60a of the wall structural member 32. The seat 45 is not installed either. Therefore, the flow 38 of the cold air that has fallen along the inner plate 26 of the freezing chamber door 11 reaches the upper surface of the partition wall 25 through the tip of the throat 27. A part of the cold air flow 38 flows to the front side of the freezing chamber 5 and hits the gasket 28. Further, the flow of cold air reaching the gasket 28 flows into the gap 39 generated between the partition wall front plate 34 and the lower surface 61 of the upper end portion 60a of the wall structural member 32.

The partition wall front plate 34 has a structure that is fitted and fixed to the front end portion of the wall structural member 32. Since the structure in which the partition wall front plate 34 is fitted into the wall structural member 32 extends over the entire width of the freezing chamber 5, a portion is formed between the partition wall front plate 34 and the lower surface 61 of the upper end portion 60a of the wall structural member 32. A gap 39 is created. Therefore, the cold air that has reached the periphery of the gasket 28 enters the space inside the front end portion of the partition wall 25 through the gap 39. A condenser pipe 35 is arranged in the internal space, and cold air reaches the condenser pipe 35.

The condenser pipe 35 generates heat and heats the gasket 28, the lower end of the freezing chamber door 11, and the surrounding air by heat conduction to prevent dew. In the comparative example, when the condenser pipe 35 generates heat, there are two paths 41: a path 41 that conducts heat to the air passing through the gap 39 and a path 42 that conducts heat to the inside of the freezing chamber 5 via the wall structure member 32. Heat is transferred through the path, and the heat generated by the condenser pipe 35 is not sufficiently transferred to the partition wall front plate 34 and escapes into the freezing chamber 5. As a result, the temperature of the door cap 29 does not rise sufficiently, so that the lower end surface 43 of the freezing chamber door 11 condenses.

FIG. 7 is an enlarged cross-sectional view of the periphery of the front end portion of the partition wall 25 of the refrigerator 100 according to the first embodiment. FIG. 7 shows the periphery of the gasket 28 in an enlarged scale with respect to FIG. In the refrigerator 100 according to the first embodiment, the flow 38 of the cold air that has fallen along the inner plate 26 of the freezing chamber door 11 reaches the upper surface of the partition wall 25 through the tip of the throat 27. A part of the cold air flow 38 flows to the front side of the freezing chamber 5, but hits the heat insulating sheet 44, and the flow of cold air to the gasket 28 side is obstructed. Further, even if the flow of cold air reaches the gasket 28, the gap 39 generated between the partition wall front plate 34 and the lower surface 61 of the upper end portion 60a of the wall structural member 32 is closed by the windbreak sheet 45. , Cold air does not reach the condenser pipe 35.

Further, by attaching the heat insulating sheet 44 to the upper surface of the partition wall 25, particularly to the upper surface of the tip end portion of the partition wall 25 in which the condenser pipe 35 is arranged, the heat of the condenser pipe 35 is transmitted to the wall structural member 32. Escape to the inside of the freezing chamber 5 is suppressed.

Further, the heat insulating sheet 44 also has a function of receiving juice so that when a liquid such as food juice spills in the freezing chamber 5, it does not leak to the outside from the freezing chamber 5.

FIG. 8 is an explanatory diagram of the installation position of the heat insulating sheet 44 of the refrigerator 100 according to the first embodiment. The optimum arrangement and dimensions of the heat insulating sheet 44 will be described with reference to FIG. The heat insulating sheet 44 is preferably made as large as possible for the purpose of preventing cold air from entering and heat insulating. Of the dimensions of the heat insulating sheet 44, the dimension in the refrigerator width direction is preferably the full width of the freezing chamber. The dimension of the heat insulating sheet 44 in the height direction from the partition wall 25 comes into contact with the lower freezing case 17 and the throat 27 in consideration of the fact that the freezing room door 11 and the lower freezing case 17 are lowered when the freezing room door 11 is pulled out. It is desirable to make it as high as possible within the range that does not occur.

The end surface of the heat insulating sheet 44 located on the front side of the refrigerator 100 is configured to be located on the frontmost side within a range that does not come into contact with the gasket 28 when the freezing chamber door 11 is closed. It is desirable that the end surface of the heat insulating sheet 44 on the back side of the freezing chamber 5 is arranged at the position shown in FIG. 8 as an optimum position for heat insulation and prevention of cold air intrusion. That is, the corner located at the upper end of the back end surface of the freezing chamber 5 of the heat insulating sheet 44 is an extension of the virtual tangent line 49 when the virtual tangent line 49 is drawn at the midpoint of the curved surface 48 below the tip of the throat 27. It is desirable to be located on the line. The curved surface 48 is a cylindrical surface and has an arc shape in cross-sectional shape. However, the curved surface 48 is not limited to a cylindrical surface, and may be a curved surface such as an elliptical cylindrical surface.

In the refrigerator 100 shown in FIG. 8, the angle 51 formed by the lower surface 50 of the throat 27 and the virtual tangent 49 is about 45 degrees. The flow of cold air descending along the surface of the throat 27 separates from the surface of the throat 27 at the midpoint of the curved surface 48 below the throat 27. Then, the flow of cold air flows below the virtual tangent line 49. Since the end surface of the heat insulating sheet 44 on the back side of the freezing chamber 5 is located on the extension line of the virtual tangent line 49, the cold air flowing below the virtual tangent line 49 hits the heat insulating sheet 44 and faces the back side of the freezing room 5. It will flow. When the end surface of the heat insulating sheet 44 on the back side of the freezing chamber 5 is located closer to the back side of the freezing chamber 5 than the virtual tangent line 49, cold air easily flows between the upper surface of the heat insulating sheet 44 and the lower surface of the throat 27. .. Therefore, by locating the end surface of the heat insulating sheet 44 on the back side of the freezing chamber 5 on the extension line of the virtual tangent line 49, the heat insulating effect of the upper surface of the wall structural member 32 is increased, and the intrusion of cold air into the gasket side is reduced. can do.

FIG. 9 shows the results of thermal fluid analysis inside the freezing chamber 5 of the comparative example of the refrigerator 100 according to the first embodiment. FIG. 10 shows the result of thermo-fluid analysis inside the freezing chamber 5 of the refrigerator 100 according to the first embodiment. In the comparative example shown in FIG. 9, the end surface of the heat insulating sheet 44 on the back side of the freezing chamber 5 is located on the back side of the tip of the throat 27. In the case of the heat insulating sheet 44 shown in FIG. 9, the heat insulating property on the upper surface of the wall structure member 32 is improved, but the cold air that has fallen on the heat insulating sheet 44 easily enters the gasket 28 side. On the other hand, in the refrigerator 100 according to the first embodiment shown in FIG. 10, the cold air that has fallen along the throat 27 hits the heat insulating sheet 44 and is difficult to flow toward the gasket 28 side.

In FIGS. 9 and 10, the place where the arrow is largely indicated is the place where more cold air is flowing. Comparing FIGS. 9 and 10, there is more cold air flowing between the heat insulating sheet 44 and the throat 27 in FIG. Comparing at the air volume measurement point 52 located between the heat insulating sheet 44 and the throat 27, the air volume in FIG. 10 is about 73% smaller than that in FIG.

FIG. 11 is a diagram showing the temperature distribution inside the freezing chamber 5 of FIG. FIG. 12 is a diagram showing the temperature distribution inside the freezing chamber 5 of FIG. The temperature contour lines are shown in FIGS. 11 and 12, and the difference in temperature distribution depending on the dimensions of the heat insulating sheet 44 can be seen. In FIGS. 11 and 12, it is shown that the temperature of the door plate 30 and the vegetable compartment 6 side of the freezing chamber door 11 is high, and the temperature of the inside side of the freezing chamber 5 is low, which is shown by (1) in the drawing. The temperature contour line is high in temperature, and the temperature contour line shown in (2) in the figure is low in temperature. When the temperature was confirmed at the temperature measurement point 53 of the door cap 29 of the freezing chamber door 11 by both thermo-fluid analysis and the actual machine test, it was confirmed that the temperature in FIG. 10 was about 0.1 K higher than that in FIG. rice field. That is, the corner of the back end surface of the freezing chamber 5 of the heat insulating sheet 44 is located on the extension line of the virtual tangent line 49 when the virtual tangent line 49 is drawn at the midpoint of the curved surface 48 below the throat 27. desirable.

Although the present invention has been described above based on the embodiments, the present invention is not limited to the configuration of the above-described embodiments. For example, the component configuration of the door of the refrigerator 100 can be changed as appropriate. The structure for suppressing dew on the lower end of the freezing chamber door 11 described above can be applied to other storage chambers. In particular, it is preferable to apply it to a storage chamber having a low internal temperature such as an ice making chamber 3. In short, it should be added that the gist (technical scope) of the present invention also includes various modifications, applications, and uses made by those skilled in the art as necessary.

1 Refrigerator body, 2 Refrigerator room, 2a shelf, 2b Chilled room, 2c shelf, 3 Ice making room, 4 Switching room, 4a Switching room case, 5 Freezer room, 6 Vegetable room, 7 Left refrigerating room door, 8 Right refrigerating room door , 9 Ice-making room door, 10 Switching room door, 11 Freezer room door, 12 Vegetable room door, 13 Box body, 14 Outer box, 15 Inner box, 16 Upper freezer case, 17 Lower freezer case, 18 Vegetable room case, 19 Vegetables Room case, 20 cooler, 21 fan, 22 compressor, 23 outlet, 24 return port, 25 partition wall, 26 inner plate, 27 throat, 28 gasket, 29 door cap, 30 door plate, 31 insulation, 32 walls Structural member, 33 wall structural member, 34 partition wall front plate, 35 condenser pipe, 36 cushioning material, 37 heat insulating sheet, 39 gap, 41 path, 42 path, 43 lower end surface, 44 heat insulating sheet, 45 windproof sheet, 48 curved surface, 49 Virtual tangent, 50 Bottom, 51 Angle, 52 Air volume measurement point, 53 Temperature measurement point, 60a Upper end, 60b Lower end, 61 Bottom, 62 Wall, 100 Refrigerator.

The refrigerator of the present invention has a refrigerator main body having a plurality of storage chambers, a door provided on the front surface of the refrigerator main body and closing the plurality of storage chambers, and the plurality of storage chambers arranged adjacent to each other one above the other. A partition wall for partitioning between the first storage chamber and the second storage chamber and a heat insulating sheet attached to the partition wall are provided, and the partition wall includes the lower surface of the first storage chamber and the first storage chamber. The wall structural member forming the upper surface of the storage chamber 2 and the partition wall front plate attached to the end of the wall structural member on the front side of the refrigerator body and forming the front end surface of the refrigerator body of the partition wall. The door is attached to the inner surface of the door, which is a surface of the door facing the first storage chamber, and when the door is closed, the door is provided with a heating means for preventing dew condensation. The partition wall front plate includes a gasket that closes the storage chamber of 1 and a throat that is located inside the gasket on the inner surface of the door and projects toward the first storage chamber. When closed, it comes into contact with the gasket, and the partition wall front plate and the end portion of the wall structural member are combined to form a space for arranging the heating means, and the heat insulating sheet is the first storage. Of the lower surface of the chamber, it is fixed below the throat and above the heating means.

Claims (8)

Refrigerator body with multiple storage rooms and
A door provided on the front surface of the refrigerator body and closing the plurality of storage chambers,
A partition wall partitioning between the first storage chamber and the second storage chamber arranged vertically adjacent to each other among the plurality of storage chambers,
With a heat insulating sheet attached to the partition wall,
The partition wall
A wall structural member forming the lower surface of the first storage chamber and the upper surface of the second storage chamber,
A partition wall front plate attached to an end portion of the wall structural member on the front surface side of the refrigerator body and forming a front end surface of the refrigerator body on the front surface side of the partition wall is provided.
The door is
A gasket attached to the inner surface of the door, which is a surface of the door facing the first storage chamber, and which closes the first storage chamber when the door is closed.
A throat located inside the gasket on the inner surface of the door and projecting toward the first storage chamber is provided.
The partition wall front plate is
When the door is closed, it comes into contact with the gasket and
The partition wall front plate and the end portion of the wall structural member are
Combined to form a space for arranging the heating means,
The heat insulating sheet is
A refrigerator fixed below the throat on the lower surface of the first storage chamber. The partition wall
A windbreaker sheet fixed to the end of the wall structure member is further provided.
The windbreaker is
The refrigerator according to claim 1, which is arranged in a gap between the wall structural member and the partition wall front plate. Refrigerator body with multiple storage rooms and
A door provided on the front surface of the refrigerator body and closing the plurality of storage chambers,
A partition wall partitioning between the first storage chamber and the second storage chamber arranged vertically adjacent to each other among the plurality of storage chambers,
With a windbreaker fixed to the partition wall,
The partition wall
A wall structural member forming the lower surface of the first storage chamber and the upper surface of the second storage chamber,
A partition wall front plate attached to an end portion of the wall structural member on the front surface side of the refrigerator body and forming a front end surface of the refrigerator body on the front surface side of the partition wall is provided.
The door is
A gasket attached to the inner surface of the door, which is a surface of the door facing the first storage chamber, and which closes the first storage chamber when the door is closed.
A throat located inside the gasket on the inner surface of the door and projecting toward the first storage chamber is provided.
The partition wall front plate is
When the door is closed, it comes into contact with the gasket and
The partition wall front plate is
It is fitted into the end of the wall structure member to form a space for arranging the heating means between the end of the wall structure member and the end.
The windbreaker is
A refrigerator arranged between the wall structural member and the partition wall front plate. Further provided with a heat insulating sheet attached to the partition wall
The heat insulating sheet is
The refrigerator according to claim 3, which is fixed below the throat in the lower surface of the first storage chamber. The end face of the heat insulating sheet located on the back side of the first storage chamber is
The refrigerator according to any one of claims 1, 2, or 4, which is located in front of the first storage chamber with respect to the tip of the throat. The angle located at the upper end of the end face of the heat insulating sheet located on the inner side of the first storage chamber is
The refrigerator according to any one of claims 1, 2, or 4, located in front of the first storage chamber with respect to a virtual tangent drawn from the center of a curved surface below the tip of the throat. The wall structural member is
The upper end and the lower end protrude to the front side,
The partition wall front plate is
It is fitted between the upper end portion and the lower end portion of the wall structural member, and is fitted.
The windbreaker is
The refrigerator according to any one of claims 2 to 4, which is attached and fixed to the lower surface of the upper end portion. The windbreaker is
The refrigerator according to any one of claims 2, 3, 4, or 7, which is made of a material having closed cells.

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