Cooling storage

Abstract

To provide a double swinging type cooling storage which prevents dew condensation in a packing, which fills a gap between both side doors, without heating the packing.SOLUTION: A cooling storage comprises a housing, a first door, and a second door. In the housing, a cooling chamber is formed which is opened forward. The first door is rotated around a central shaft, which is positioned in one side end of the housing in a width direction, thereby opening / closing one side portion of an opening of the housing in the width direction. The second door is rotated around a central shaft, which is position in the other side end of the housing in the width direction, thereby opening / closing the other side portion of the opening in the width direction. In at least one of a first end face of the first door opposed with the second door and a second end face of the second door opposed with the first door and separated from the first end face, a projection is provided which protrudes toward the other side.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a refrigerator. [Background technology]

[0002] A cooling box such as a refrigerator described in Patent Document 1 has a refrigerating chamber that can be opened and closed by double doors. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-025705 Summary of the Invention [Problem to be solved by the invention]

[0004] In refrigerators with doors that open on both sides, condensation on the gasket that fills the gap between the doors is prevented by heating the gasket.

[0005] An object of the present disclosure is to provide a double-door refrigerator that prevents condensation on the gasket that fills the gap between the doors on both sides without heating the gasket. [Means for solving the problem]

[0006] According to one aspect of the present disclosure, a cooling box includes a housing, a first door, and a second door. The housing has a cooling chamber that opens forward. The first door rotates about a central axis located at one end of the housing in the width direction to open and close one side of the opening in the width direction of the housing. The second door rotates about a central axis located at the other end of the housing in the width direction to open and close the other side of the opening in the width direction. At least one of a first end face of the first door facing the second door and a second end face of the second door facing the first door and spaced apart from the first end face is provided with a protrusion that protrudes toward the other side. Effect of the Invention

[0007] According to the double-door refrigerator disclosed herein, condensation on the gasket that fills the gap between the doors on both sides can be prevented without heating the gasket. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a front view of the refrigerator according to the first embodiment with the first door and the second door closed. [Diagram 2] FIG. 2 is a diagram showing a vertical cross section (cross section AA) of the cooling box according to the first embodiment with the first door and the second door closed. [Diagram 3] FIG. 2 is a diagram showing a cross section (BB section) of the cooling box according to the first embodiment with the first door and the second door closed. [Figure 4] FIG. 11 is a cross-sectional view of a cooling box according to a second embodiment with the first and second doors closed, showing an enlarged view of the vicinity of a protruding portion. [Diagram 5] FIG. 11 is a cross-sectional view of a cooling box according to a third embodiment with the first and second doors closed, showing an enlarged view of the vicinity of a protruding portion. [Figure 6] FIG. 13 is a vertical cross-sectional view of a cooling box according to a fourth embodiment with a first door closed, showing an enlarged view of the vicinity of a protruding portion. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] A refrigerator is a device that cools beverages, food, and other items that need to be cooled (refrigerated objects). Refrigerators include refrigerators that cool objects to a temperature range higher than 0°C, and freezers that cool objects to a temperature range below 0°C.

[0010] In conventional double-door refrigerators, the packing filling the gap between the two doors is heated to prevent condensation from forming on the packing due to cooling. The double-door refrigerator disclosed herein is provided with a structure that blocks the flow of cold air toward the packing, thereby preventing condensation from forming on the packing.

[0011] Hereinafter, an embodiment will be described with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference characters, and description thereof will not be repeated.

[0012] In the following description, "top", "bottom", "left", "right", "width", "front", and "rear" are defined as follows. "Top" means the top side of a user standing facing the opening of the cooler when the cooler is set up in a correctly usable state. "Bottom" means the bottom side of a user standing facing the opening of the cooler when the cooler is set up in a correctly usable state. "Left" means the left hand side of a user standing facing the opening of the cooler when the cooler is set up in a correctly usable state. "Right" means the right hand side of a user standing facing the opening of the cooler when the cooler is set up in a correctly usable state. "Left direction" and "right direction" may be collectively referred to as "width direction". "Front" means the side of a user standing facing the opening of the cooler when the cooler is set up in a correctly usable state. "Rear" means the opposite side of a user standing facing the opening of the cooler when the cooler is set up in a correctly usable state.

[0013] [Embodiment 1] A cooling box 100 according to embodiment 1 of the present disclosure will be described with reference to Fig. 1 to Fig. 3. Fig. 1 is a front view of the cooling box 100 according to embodiment 1 with the first door 21 and the second door 22 closed. Fig. 2 is a diagram showing a vertical cross section (AA cross section) of the cooling box 100 according to embodiment 1 with the first door 21 and the second door 22 closed. Fig. 3 is a diagram showing a horizontal cross section (BB cross section) of the cooling box 100 according to embodiment 1 with the first door 21 and the second door 22 closed.

[0014] As shown in FIGS. 1 to 3, the refrigerator 100 includes a housing 1, a double door 2, a packing 3, and a protrusion 4.

[0015] As shown in FIGS. 2 and 3, the housing 1 has a cooling chamber 11 and a blower 12.

[0016] The cooling chamber 11 is a space formed inside the housing 1 for cooling an object to be cooled. The cooling chamber 11 is formed in the housing 1 so as to open toward the front. The object to be cooled is accommodated in the cooling chamber 11 through the opening formed in the housing 1. In the following description, the space outside the cooling chamber 11 may be simply referred to as "outside."

[0017] The blower 12 blows the cold air CA into the cooling chamber 11. The cold air CA is air at a temperature lower than room temperature. The temperature of the cold air CA is determined according to the temperature to which the object to be cooled is cooled. FIG. 2 and FIG. 3 show an example of the blower 12 having an outlet 13 arranged in a space at the rear of the cooling chamber 11 so as to blow the cold air CA from the front to the rear of the cooling chamber 11. A part of the cold air CA blown out from the outlet 13 becomes cold air CA1 toward the packing 3 described later. A part of the cold air CA1 toward the packing 3 becomes cold air CA2 that reaches the packing 3. The cold air CA2 that reaches the packing 3 cools a part of the packing 3, causing condensation to occur on the packing 3. In detail, the packing 3 is attached to the double-door 2 described later, and thus condensation is likely to occur. Specifically, the packing 3 attached to the double-door 2 contacts both the cooling chamber 11 and the outside of the cooling chamber 11 when the double-door 2 is closed. The outside of the packing 3 has a higher temperature than the cooling chamber 11 side of the packing 3. The cold air CA2 reaching the packing 3 lowers the temperature of the cooling chamber 11 side of the packing 3 and increases the temperature difference between the cooling chamber 11 side of the packing 3 and the outside of the packing 3, making condensation more likely to occur on the packing 3.

[0018] The double doors 2 open and close the opening of the housing 1. The state in which the double doors 2 are closed means that the double doors 2 completely cover the area that the double doors 2 can cover at the opening of the housing 1. The state in which the double doors 2 are open means a state other than the state in which the double doors 2 are closed.

[0019] The double-door 2 has a first door 21 and a second door 22. Each of the first door 21 and the second door 22 opens and closes one side portion or the other side portion of the opening of the housing 1 divided in the width direction. Fig. 3 illustrates the first door 21 and the second door 22 that open and close the opening of the housing 1 divided into a right side portion and a left side portion.

[0020] The first door 21 opens and closes one side portion in the width direction of the opening of the housing 1 by rotating about a central axis 210 located at one side end portion 14 in the width direction of the housing 1. FIG. 3 illustrates an example of the first door 21 that is located at one side end portion 14 on the front right side of the housing 1 and opens and closes about the central axis 210 along the up-down direction. The central axis 210 is, for example, an axis that constitutes a hinge that rotatably supports the first door 21 on the housing 1. The first door 21 illustrated in FIG. 3 opens and closes the right side portion of the opening of the housing 1.

[0021] The first door 21 has a first end surface 211. The first end surface 211 faces the second door 22 when the first door 21 and a second door 22, which will be described later, are in a closed state.

[0022] The second door 22 opens and closes the other side portion in the width direction of the opening by rotating about a central axis 220 located at the other side end portion 15 of the housing 1 in the width direction. FIG. 3 illustrates the second door 22 that opens and closes about a central axis 220 located at the other side end portion 15 on the front left side of the housing 1 and along the up-down direction. The central axis 220 is, for example, an axis that constitutes a hinge that rotatably supports the second door 22 on the housing 1. The second door 22 illustrated in FIG. 3 opens and closes the left side portion of the opening of the housing 1. The second door 22 in the closed state is separated from the first door 21 in the closed state.

[0023] The second door 22 has a second end surface 221. The second end surface 221 faces the first end surface 211 when the first door 21 and the second door 22 are closed. The second end surface 221 is spaced apart from the first end surface 211 when the opening is closed.

[0024] The packing 3 fills the gap GP between the first door 21 and the second door 22 when the first door 21 and the second door 22 are closed. The packing 3 is disposed on the end face on the side where a protrusion 4 described later is provided, of the first end face 211 and the second end face 221, and outside the protrusion 4. Figs. 2 and 3 show an example of the packing 3 attached to the cooling chamber 11 side of each of the first door 21 and the second door 22.

[0025] The packings 3 attached to the first door 21 and the second door 22 respectively protrude toward a gap GP formed between the first end surface 211 and the second end surface 221 when the first door 21 and the second door 22 are closed. The packing 3 attached to the first door 21 comes into contact with the packing 3 attached to the second door 22 by closing the first door 21 and the second door 22. As a result, the gap GP between the first door 21 and the second door 22 is filled by the packings 3 attached to the first door 21 and the second door 22 respectively. Note that when the packing 3 is attached to only one of the first door 21 or the second door 22, the packing 3 comes into contact with the other of the first door 21 or the second door 22 to fill the gap GP between the first door 21 and the second door 22.

[0026] In the following description, for convenience of explanation, when the first door 21 and the second door 22 are closed, the surface of the packing 3 on the cooling chamber 11 side is referred to as the inner surface 31 of the packing 3. The surface of the packing 3 opposite to the inner surface 31 is referred to as the outer surface 32 of the packing 3.

[0027] The protrusion 4 is provided on at least one of the first end face 211 and the second end face 221 so as to protrude toward the other side. Since the packing 3 is provided outside the protrusion 4 as described above, when the first door 21 and the second door 22 are closed, part of the cold air CA1 flowing from the air outlet 13 toward the packing 3 is blocked by the protrusion 4. This reduces the amount of cold air CA2 that reaches the packing 3. As a result, the temperature difference between the inner surface 31 of the packing 3 and the outer surface 32 of the packing 3 is reduced, making it difficult for condensation to occur on the inner surface 31 of the packing 3.

[0028] 2 and 3, the protrusions 4 are preferably provided on both the first end face 211 and the second end face 221. In this way, the width of the space through which the cold air CA2 passes to reach the packing 3 is narrowed. As a result, the amount of cold air CA2 that reaches the packing 3 is less than when the protrusions 4 are provided on either the first end face 211 or the second end face 221, so that the possibility of condensation occurring on the packing 3 can be reduced.

[0029] [Embodiment 2] A cooling box 200 according to embodiment 2 will be described with reference to Fig. 4. Fig. 4 is a cross-sectional view of cooling box 200 according to embodiment 2 with first door 21 and second door 22 closed, and is an enlarged view of the vicinity of protrusion 4.

[0030] A cooling box 200 according to the second embodiment differs from the first embodiment mainly in the shape of the protrusion 4. The following mainly describes the differences between the second embodiment and the first embodiment.

[0031] As shown in Fig. 4, the convex portion 4 of the cooling box 200 according to the second embodiment is shaped to guide the cold air CA1 flowing toward the convex portion 4 in a direction different from the gap GP between the first end face 211 and the second end face 221. Such a convex portion 4 guides a part of the cold air CA1 (cold air CA3) flowing from the cooling chamber 11 toward the packing 3 in a direction different from the packing 3, thereby reducing the amount of cold air that reaches the packing 3. As a result, the temperature difference between the inner surface 31 of the packing 3 and the outer surface 32 of the packing 3 becomes smaller, making it difficult for condensation to occur on the packing 3.

[0032] Preferably, the protrusion 4 has a concave surface 5 that is concave toward the front side in a rear view. In this way, the shape of the protrusion 4 can be simplified since it is only necessary to make the protrusion 4 concave in order to guide the protrusion 4 in a direction different from the gap GP between the first end face 211 and the second end face 221.

[0033] Furthermore, preferably, as shown in FIG. 4, the first end surface 211 and the second end surface 221 are each provided with a convex portion 4. In addition, the pair of convex portions 4 on each of the first end surface 211 and the second end surface 221 has a pair of concave surfaces 5 that are concave in an arc shape from the rear of the pair of convex portions 4 to the front side in a cross-sectional view. In this way, one concave surface 5 of the first door 21 or the second door 22 guides the cold air CA3 to the other concave surface 5 of the first door 21 or the second door 22. As a result, the cold air CA3 guided to the concave surface 5 provided on the first door 21 or the second door 22 becomes a wall against the cold air CA1 heading toward the packing 3. As a result, the amount of cold air reaching the packing 3 from the cooling chamber 11 is reduced.

[0034] [Embodiment 3] A cooling box 300 according to embodiment 3 will be described with reference to Fig. 5. Fig. 5 is a cross-sectional view of cooling box 300 according to embodiment 3 with first door 21 and second door 22 closed, and is an enlarged view of the vicinity of protrusion 4.

[0035] A cooling box 300 according to the third embodiment differs from the first embodiment mainly in the shape of the protrusion 4. The following mainly describes the differences between the third embodiment and the first embodiment.

[0036] As shown in FIG. 5, the convex portion 4 of the cooling box 300 according to the third embodiment includes a first convex portion 41 and a second convex portion 42. The first convex portion 41 is provided on the first end surface 211. The second convex portion 42 is provided on the second end surface 221. The first convex portion 41 and the second convex portion 42 are configured so that a turbulent flow is formed by the cold air CA4 that has reached the first convex portion 41 and the cold air CA5 that has reached the second convex portion 42. In this way, the turbulent cold air becomes a wall against the cold air CA1 that is heading toward the packing 3. As a result, the amount of cold air that reaches the packing 3 from the cooling chamber 11 is reduced.

[0037] Preferably, the first protrusion 41 has a first concave surface 51 that is concave toward the front side in a rear view. The second protrusion 42 has a second concave surface 52 that is concave toward the front side in a rear view. The end of the first concave surface 51 on the second concave surface 52 side and the end of the second concave surface 52 on the first concave surface 51 side are positioned differently in the front-rear direction. In this way, it is only necessary to differentiate the length of the second concave surface 52 of the first concave surface 51 in the front-rear direction, and therefore the shapes of the first protrusion 41 and the second protrusion 42 can be simplified.

[0038] Further, preferably, the first concave surface 51 has a shape in which the surface of the first convex portion 41 facing the second convex portion 42 is recessed in an arc shape in cross section from the surface of the first convex portion 41 facing the second convex portion 42 on the cooling chamber 11 side. And the second concave surface 52 has a shape in which the surface of the second convex portion 42 facing the first convex portion 41 is recessed in an arc shape in cross section. In this way, the cool air guided on one side by either the first concave surface 51 or the second concave surface 52 hits the convex portion 4 having the other of the first concave surface 51 or the second concave surface 52, so that turbulence is likely to occur in the convex portion 4.

[0039] 5, the cool air CA5 that hits the second concave surface 52 that is recessed further forward than the first concave surface 51 is guided by the second concave surface 52 toward the first convex portion 41. The cool air CA5 guided toward the first convex portion 41 hits the surface of the first convex portion 41 facing the second convex portion 42, generating a turbulent flow.

[0040] [Embodiment 4] A cooling box 400 according to embodiment 4 will be described with reference to Fig. 6. Fig. 6 is a vertical cross-sectional view of cooling box 400 according to embodiment 4 with first door 21 closed, and is an enlarged view of the vicinity of protrusion 4.

[0041] A cooling box 400 according to the fourth embodiment differs from the first embodiment mainly in the shape of the protrusion 4. The following mainly describes the differences between the fourth embodiment and the first embodiment.

[0042] As shown in FIG. 6, the convex portion 4 of the cooling box 400 according to the fourth embodiment is provided so that there is a portion where the distance between the convex portion 4 and the packing 3 narrows toward the top. In this way, the convex portion 4 prevents the cold air CA that reaches the lower part of the space between the convex portion 4 and the packing 3 from becoming an ascending air current CA6 that flows from the lower part to the upper part between the convex portion 4 and the packing 3. In detail, air does not flow easily in the upper part of the space between the convex portion 4 and the packing 3, which is narrower than the lower part. Therefore, the air above the space between the convex portion 4 and the packing 3 blocks the ascending air current CA6. As a result, the amount of cold air that reaches the upper part of the inner surface 31 of the packing 3 is reduced, and the area of ​​the part where condensation may occur in the packing 3 is reduced.

[0043] 6, the protrusion 4 is preferably a plate that is inclined more toward the front as it goes upward. Such a protrusion 4 has a simple structure because it is only necessary to attach a plate at an incline to the first end face 211 or the second end face 221.

[0044] The embodiments of the present disclosure have been described above with reference to the drawings. However, the present disclosure is not limited to the above embodiments, and can be implemented in various forms without departing from the spirit of the present disclosure. The drawings are mainly schematic illustrations of each component for ease of understanding, and the thickness, length, number, spacing, etc. of each component shown in the drawings are different from the actual ones due to the convenience of drawing. In addition, the material, shape, dimensions, etc. of each component shown in the above embodiments are examples and are not particularly limited, and various changes are possible within a range that does not substantially deviate from the configuration of the present disclosure. [Explanation of symbols]

[0045] 1: Housing 2: Double door 3: Packing 4: Convex part 5: Concave 11: Cooling room 14: One side end 15:Other side end 41: First protrusion 42: Second convex part 51: 1st concave surface 52: 2nd concave surface 100: Refrigerator 200: Refrigerator 300: Refrigerator 400: Refrigerator

Claims

1. A housing having a cooling chamber that opens forward; a first door that rotates about a central axis located at one end of a width direction of the housing to open and close one side portion of an opening of the housing in the width direction; a second door that rotates about a central axis located at the other end of the housing in the width direction to open and close the other side portion of the opening in the width direction, A cooling cabinet, wherein at least one of a first end face of the first door facing the second door and a second end face of the second door facing the first door and spaced apart from the first end face is provided with a convex portion protruding toward the other side.

2. The cooling box according to claim 1 , wherein the convex portion is configured in a shape that guides the cold air flowing toward the convex portion in a direction different from the direction toward the gap between the first end surface and the second end surface.

3. The refrigerator according to claim 1 or 2, wherein the protrusion has a concave surface that is recessed toward the front side in a rear view.

4. The protrusion is a first protrusion provided on the first end surface; a second protrusion provided on the second end surface, The cooling box according to claim 1 or 2, wherein the first convex portion and the second convex portion are configured so that turbulence is formed by the cold air that has reached the first convex portion and the cold air that has reached the second convex portion.

5. The first convex portion has a first concave surface that is concave toward the front side in a rear view, The second convex portion has a second concave surface that is concave toward the front side in a rear view, The refrigerator according to claim 4 , wherein an end of the first concave surface on the second concave surface side and an end of the second concave surface on the first concave surface side are positioned at different positions along the front-rear direction.

6. The end surface on which the protrusion is provided of the first end surface or the second end surface is Further, a packing is provided that is disposed on the outer side of the protruding portion. The refrigerator according to claim 1 or 2, wherein the protrusion is provided such that a distance between the protrusion and the packing is gradually narrowed upward.

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