JP7043287B2 - Cool storage - Google Patents

Description

The techniques disclosed herein relate to cooling storage.

Conventionally, in a cooling storage having a storage main body having an opening and a door that opens and closes the opening and is attached to the storage main body so as to be rotatable around a rotation axis and opens more than 90 degrees, the door is A ridge projecting from the back of the door to the inside of the cabinet in the closed state, extending in the direction of the rotation axis in the vicinity of the rotation axis, and the opening edge of the storage body and the back of the door. It is known that the one provided with a ridge portion that obstructs the flow of cold air in the refrigerator flowing toward the space (see, for example, Patent Document 1).

Specifically, in the cooling storage described in Patent Document 1, as shown in FIGS. 3 and 4 of the same document, a rectangular frame-shaped packing is attached to the interior plate of the heat insulating door, and the inside thereof. Ribs overhanging in a rectangular shape are formed on the surface. The portion of the rib extending in the direction of the rotation axis in the vicinity of the rotation axis side corresponds to the above-mentioned convex portion. The rib described in Patent Document 1 projects from the back surface of the heat insulating door to the inside of the refrigerator in a state where the heat insulating door is closed, and has a flat surface at the tip portion in the protruding direction. In the cooling storage described in Patent Document 1, the flat surface is parallel to the plate surface of the interior plate (FIG. 4 of the same document).

Japanese Unexamined Patent Publication No. 2016-156571

In the cooling storage described in Patent Document 1, when the door is opened more than 90 degrees, the left-right dimension of the opening extends in the rotation axis direction in the vicinity of the above-mentioned convex portion (the rib in the vicinity of the rotation axis side). There is a problem that the size of the stored items that can be stored in the refrigerator becomes small due to the narrowing due to the existing part).

In the present specification, the dimensions of the opening when the door is opened more than 90 degrees while the ridges obstruct the flow of cold air in the storage flowing toward the opening edge of the storage body and the back surface of the door. Discloses a technique for suppressing the narrowing of the door by the convex portion.

The cooled storage disclosed in the present specification is a storage body having an opening on the front side and a door for opening and closing the opening, which is rotatably attached to the storage body around a rotation axis and is attached to the storage body from 90 degrees. A door that opens wide and a ridge that projects from the back of the door to the inside of the refrigerator when the door is closed, toward the space between the opening edge of the storage body and the back of the door. It is provided with a ridge portion that obstructs the flow of cold air in the flowing chamber, and the ridge portion has a flat surface at the tip portion in the overhanging direction, and the flat surface moves forward as it approaches the rotation axis. It is tilted.

According to the above-mentioned cooling storage, the flat surface of the convex portion is inclined so as to approach the back surface of the door as it approaches the rotation axis, so that when the door is fully opened, compared to the case where the flat surface is parallel to the back surface. It is possible to prevent the opening from being narrowed by the ridge portion. As a result, the size of the opening is convex when the door is opened more than 90 degrees while the ridges obstruct the flow of cold air in the storage that flows between the opening edge of the storage body and the back surface of the door. It is possible to prevent it from becoming narrow due to the streaks. Therefore, it is possible to store a large storage item as compared with the conventional case.

Further, the flat surface may be inclined with respect to the back surface of the door at an angle obtained by subtracting an angle in the range of 80 degrees to 100 degrees from the fully open angle of the door.

If the angle at which the flat surface is tilted is shallow, the effect of widening the dimensions of the opening will be small. On the other hand, if the flat surface is tilted at a deep angle, the thickness of the ridges becomes thin, and the function of obstructing the flow of cold air in the refrigerator that flows between the opening edge of the storage body and the back of the door. It will drop. Therefore, in order to widen the size of the opening and suppress the deterioration of the function of obstructing the flow of cold air in the refrigerator, the angle at which the flat surface is inclined is in the range of 80 to 100 degrees from the fully open angle of the door. An angle with the angle reduced is desirable.

Further, the flat surface may be inclined with respect to the back surface of the door at an angle obtained by subtracting 90 degrees from the fully open angle of the door.

When the flat surface is tilted at an angle that is 90 degrees less than the fully open angle, the function of obstructing the flow of cold air in the refrigerator is reduced by maximizing the size of the opening and not tilting the flat surface more than necessary. Can be suppressed.

Further, the flat surface is provided at a position substantially on the same plane as the end surface forming the opening of the storage body when the door is fully opened.

When the door is fully open, if the flat surface of the convex part overlaps the opening when viewed from the front side, the size of the stored items that can be stored will be smaller than the maximum size that can pass through the opening. .. According to the above-mentioned cooling storage, since the flat surface is provided at a position substantially on the same plane as the end surface forming the opening, the maximum size that can pass through the opening or a storage item close to it. Can be stored. This improves the convenience of the user who uses the cooling storage.

Front view of the freezer / refrigerator according to the first embodiment as viewed from the front side. Sectional view of line AA shown in FIG. 1 (with the heat insulating door on the left open) Perspective view of refrigeration circuit Side view of the insulation door on the left side as seen from the right side Side view of the insulation door on the left side as seen from below Rear view of the heat insulating door on the left side (partially shown in cross section) Cross-sectional view of line BB shown in FIG. 6 (magnet packing omitted) Cross-sectional view of line CC shown in FIG. 6 (magnet packing omitted) Cross-sectional view of the state where the heat insulating door on the left side of the freezer / refrigerator according to the comparative example is opened.

<Embodiment 1>
The first embodiment will be described with reference to FIGS. 1 to 8. In the following description, the vertical direction and the horizontal direction refer to the vertical direction and the horizontal direction shown in FIG. Further, the front-back direction refers to the vertical direction of the paper surface in FIG. 1, and the front side of the paper surface is referred to as the front side and the back side of the paper surface is referred to as the rear side.

(1) Overall Configuration of Refrigerator / Refrigerator The overall configuration of the cooling storage 1 according to the first embodiment will be described with reference to FIG. The cooling storage 1 is a horizontal freezer / refrigerator mainly used for business, and is a pair of double doors that open and close the opening 40 of the storage main body 10 and the storage main body 10 having a heat insulating box body having an opening 40 (see FIG. 2) on the front side. Insulated doors 11 (11A, 11B) and a machine room 12 arranged on the left side of the storage body 10 are provided. The heat insulating door 11 is an example of a door.

The inside of the storage body 10 is partitioned to the left and right by a heat insulating partition wall 15. The left side of the partition wall 15 is the freezing room, and the right side is the refrigerating room. The freezing chamber contains an evaporator 24 for the freezing chamber of the freezing circuit 20 described later. The refrigerating chamber accommodates the refrigerating chamber evaporator 25 of the refrigerating circuit 20, which will be described later.

The pair of heat insulating doors 11 are formed symmetrically. The left heat insulating door 11A is attached to the storage main body 10 so that the upper and lower sides of the left side can be rotated around the rotation shaft 41A by the hinge 13. The right heat insulating door 11B is attached to the storage main body 10 so that the upper and lower sides of the right side can be rotated around the rotation shaft 41B by the hinge 13.

As shown in FIG. 2, the heat insulating door 11 is configured to open more than 90 degrees. Specifically, the fully open angle of the heat insulating door 11 according to the present embodiment is 112 degrees. Here, the fully open angle means the angle when the heat insulating door 11 is opened to the maximum. The fully open angle of the heat insulating door 11 can be set by an appropriate method. For example, it may be set by the concave-convex structure of the hinge 13, or it may be set by the restricting portion coming into contact with the heat insulating door 11 when the heat insulating door 11 is opened to some extent. Alternatively, when the heat insulating door 11 is opened to a certain extent, it may be set by attracting the heat insulating door 11 by a magnet, or when the heat insulating door 11 is opened to a certain extent, the heat insulating door 11 engages with the engaging portion. It may be set.

The machine room 12 shown in FIG. 1 houses a part of a refrigerating circuit 20 (see FIG. 3), a control unit, a power supply unit, and the like, which will be described later. An operation unit 14 is provided on the front surface of the machine room 12. The user can set the target temperature in the refrigerator by operating the operation unit 14.

(2) Refrigeration circuit The refrigeration circuit 20 will be described with reference to FIG. The refrigerating circuit 20 includes a compressor 21, a condenser 22, an evaporator 24 for a freezing room, an evaporator 25 for a refrigerating room, and the like, and these are circulated and connected by a metal refrigerant pipe 36. The refrigerating circuit 20 also has other components such as a decompressor (for example, a capillary tube), but the description thereof is omitted here.

The compressor 21 and the condenser 23 are connected in series via a refrigerant pipe 36. The refrigerant pipe 36 connected to the outlet side of the condenser 23 is branched in the middle, and one of the branched refrigerant pipes 36 is connected to the inlet side of the freezer room evaporator 24 and the other refrigerant pipe is connected. 36 is connected to the inlet side of the refrigerator 25 for a refrigerator. The refrigerant pipe 36 connected to the outlet side of the freezer compartment evaporator 24 and the refrigerant pipe 36 connected to the outlet side of the refrigerator compartment evaporator 25 merge in the middle, and the merged refrigerant pipe 36 merges. It is connected to the inlet side of the compressor 21. As shown in FIG. 3, an insulation 37, which is a sponge-like heat insulating material, is wound around a part of the refrigerant pipe 36.

(3) Insulated door The heat insulating door 11A on the left side and the heat insulating door 11B on the right side have substantially the same structure except that they are configured in an inverted shape. Therefore, the heat insulating door 11A on the left side is taken as an example here. explain.
As shown in FIGS. 4 and 5, the heat insulating door 11A has a metal exterior plate 30 such as a stainless steel plate and an interior plate 31 made of synthetic resin. The exterior plate 30 is formed in a shallow box shape that opens to the rear side, and a plate-shaped interior plate 31 is attached from the rear side. The heat insulating door 11A has a certain thickness in the front-rear direction, and the inside is filled with a foaming agent.

As shown in FIGS. 6 to 8, the interior plate 31 is integrally formed with a rectangular frame-shaped rib 32 projecting to the rear side (inside the refrigerator when the heat insulating door 11A is closed). The rib 32 is for obstructing the flow of the cold air in the refrigerator flowing toward the opening edge of the storage main body 10 and the interior plate 31, and suppressing the cold air in the refrigerator from leaking to the outside of the refrigerator. be. The specific configuration of the rib 32 will be described later.

As shown in FIGS. 4 to 6, a rectangular frame-shaped magnet packing 33 is attached to the interior plate 31 so as to surround the rib 32. When the heat insulating door 11A is closed, the magnet packing 33 is attracted to the opening edge of the storage body 10 (in other words, the end face facing the front side of the storage body 10) and the end face facing the front side of the partition wall 15 separating the freezing room and the refrigerating room. As a result, the inside of the refrigerator is sealed.

A specific configuration of the rib 32 will be described with reference to FIGS. 6 to 8. The rib 32 has an upper convex portion 32A (FIG. 7) extending horizontally along the upper side at a position separated from the upper side of the interior plate 31 by a predetermined distance, and a rib 32 at a position separated from the lower side of the interior plate 31 by a predetermined distance. The lower ridge 32B (FIGS. 6 and 7) extending horizontally along the lower side, and the left ridge 32C (FIG. 7) extending vertically along the left side at a position separated to the right by a predetermined distance from the left side of the interior plate 31. 6. FIG. 8) has a right-side convex strip 32D (FIGS. 6 and 8) extending vertically along the right side at a position separated to the left by a predetermined distance from the right side of the interior plate 31. The left ridge portion 32C is an example of the ridge portion in the left heat insulating door 11A.

As shown in FIGS. 7 and 8, each of the upper, lower, left and right convex portions has a flat surface 34 (34A to 34D) at the tip in the overhanging direction (direction from front to rear when the heat insulating door 11A is closed). Have. As shown in FIG. 8, the flat surface 34C of the left ridge portion 32C (the ridge portion extending in the direction of the rotation shaft 41A in the vicinity of the rotation shaft 41A) is the back surface of the heat insulating door 11A as it approaches the rotation shaft 41A. It is tilted so as to approach 11C. In other words, the flat surface 34C is inclined forward as it approaches the rotation shaft 41A when the heat insulating door 11A is closed.

Specifically, as shown in FIG. 2, when the heat insulating door 11A is fully opened, the angle formed by the flat surface 34C and the back surface 11C of the heat insulating door 11A is 90 degrees from the fully opened angle of the heat insulating door 11A. It is tilted so that the angle is reduced. As described above, in the present embodiment, the fully open angle of the heat insulating door 11A is 112 degrees, so that the angle between the flat surface 34C and the back surface 11C of the heat insulating door 11A is 22 degrees (= 112 degrees −90 degrees). Therefore, when the heat insulating door 11A is fully opened, the flat surface 34C of the left convex strip portion 32C becomes perpendicular to the left-right direction.

Further, as shown in FIG. 2, the flat surface 34C is provided at a position substantially on the same plane as the end surface 42 forming the opening 40 of the storage main body 10 when the heat insulating door 11A is fully opened.

(4) Effect of Embodiment FIG. 9 shows a case where the flat surface 134C of the left convex portion 132C is parallel to the back surface 111C of the heat insulating door 111A as a comparative example. In the comparative example, since the flat surface 134C of the left side convex portion 132C is parallel to the back surface 111C of the heat insulating door 111A, when the heat insulating door 111A is fully opened, the opening dimension W2 of the opening 40 is narrowed by the left side convex portion 132C. For this reason, the size of the stored items that can be stored in the refrigerator becomes small.

On the other hand, as shown in FIG. 2, according to the cooling storage 1, the flat surface 34C is inclined so as to approach the back surface 11C of the heat insulating door 11A as it approaches the rotation shaft 41A, so that the heat insulating door 11A is fully opened. The opening dimension W1 of the opening 40 at the time is larger than W2. In FIG. 2, since the magnet packing 33 is provided, the opening size is narrower than W1 at the position where the magnet packing 33 is located. However, since the magnet packing 33 is a member made of synthetic resin that elastically deforms, the stored items are stored. Occasionally, the magnet packing 33 is crushed by the stored items. Therefore, it can be said that the opening size is W1.
Therefore, according to the cooling storage 1, the heat insulating door 11A is blocked by the left convex portion 32C from the flow of cold air in the storage flowing toward the opening edge of the storage main body 10 and the back surface 11C of the heat insulating door 11A. It is possible to prevent the opening size from being narrowed by the left ridge portion 32C when the door is opened larger than 90 degrees. As a result, it is possible to store a large storage item as compared with the conventional case.

Further, according to the cooling storage 1, the flat surface 34C is inclined with respect to the back surface 11C of the heat insulating door 11A at an angle obtained by subtracting 90 degrees from the fully open angle of the heat insulating door 11A. When the flat surface 34C is tilted at an angle obtained by subtracting 90 degrees from the fully open angle, the opening size is maximized and the flat surface 34C is not tilted more than necessary to prevent the cold air in the left convex portion 32C. It is possible to suppress the deterioration of the function that obstructs the flow.

Further, according to the cooling storage 1, the flat surface 34C is provided at a position substantially on the same plane as the end surface 42 forming the opening 40 of the storage main body 10 when the heat insulating door 11A is fully opened. When the heat insulating door 11A is fully open and the flat surface 34C is on the right side of the end surface 42, the size of the stored items that can be stored is reduced by that amount. Further, if the flat surface 34C is on the left side of the end surface 42, the left convex strip portion 32C must be made smaller, which may reduce the function of obstructing the flow of cold air in the refrigerator. According to the cooling storage 1, since the flat surface 34C is provided at a position substantially on the same plane as the end surface 42, the flow of cold air in the storage is obstructed as compared with the case where the flat surface 34C is on the left side of the end surface 42. It is possible to store a large storage object as compared with the case where the flat surface 34C is on the right side of the end surface 42 while suppressing the deterioration of the function.

<Other embodiments>
The techniques disclosed herein are not limited to the embodiments described above and in the drawings, and for example, the following embodiments are also included in the technical scope disclosed herein.

(1) In the above embodiment, when the heat insulating door 11A is fully opened, the case where the flat surface 34C of the left convex strip 32C is inclined so as to be perpendicular to the left-right direction has been described as an example, but it is not necessarily vertical. It does not have to be tilted so as to be. The inclination angle of the flat surface 34C can be appropriately determined after ensuring the height (width in the front-rear direction) of the left convex strip portion 32C so as to have an effect of obstructing the flow of cold air in the refrigerator. For example, the angle at which the flat surface 34C is inclined may be an angle obtained by subtracting an angle in the range of 80 degrees to 100 degrees from the fully open angle of the heat insulating door 11A.

Further, even when the angle at which the flat surface 34C is tilted is an angle obtained by subtracting an angle in the range of 80 degrees to 100 degrees from the fully open angle of the heat insulating door 11A, the flat surface 34C is stored in the storage when the heat insulating door 11A is fully open. It may be provided at a position substantially on the same plane as the end surface 42 forming the opening 40 of the main body 10. In this case, the flat surface 34C and the end surface 42 are not completely located on the same plane, but the flat surface 34C has a slight inclination (because it is within ± 10 degrees with respect to the end surface 42), so that the flat surface 34C is substantially on the same plane. It is said to be above. Therefore, in this case as well, it is possible to store a large stored item while suppressing a decrease in the function of obstructing the flow of cold air in the refrigerator.

(2) In the above embodiment, the cooling storage 1 has been described as an example of the cooling storage, but the cooling storage may be a refrigerator or a freezer.

(3) In the above embodiment, the case where the flat surface 34D of the right convex strip portion 32D of the left heat insulating door 11A is also inclined with respect to the back surface 11C of the interior plate 31 has been described as an example. On the other hand, the flat surface 34D of the right convex strip 32D may be parallel to the back surface 11C. However, if the flat surface 34D of the right convex strip 32D is also tilted, the interior plate 31 can be shared by the left and right heat insulating doors 11, so that the manufacturing cost can be suppressed.

(4) In the above embodiment, as shown in FIG. 2, when the heat insulating door 11A is in the fully open state, the flat surface 34C of the left convex portion 32C of the heat insulating door 11A forms the opening 40 of the storage body 10. The case where the door is provided at a position substantially on the same plane as 42 has been described as an example. On the other hand, the position of the flat surface 34C in the left-right direction may be deviated to the right or left side from the position shown in FIG. 2 within a range in which a large stored item can be stored as compared with the conventional one.

1 ... Refrigerator (an example of a cooling storage), 10 ... Storage body, 11 ... Insulated door (an example of a door), 11C ... Back, 32C ... Left convex part (an example of a convex part), 34C ... Flat surface, 40 ... opening, 41A, 41B ... rotation shaft

Claims (4)

The main body of the storage with an opening on the front side,
A door that opens and closes the opening, is attached to the storage body so as to be rotatable around a rotation axis, and opens more than 90 degrees.
A ridge portion that projects from the back surface of the door to the inside of the refrigerator when the door is closed, and is provided in the vicinity of the rotation shaft, and has an opening edge portion of the storage main body and the back surface of the door. The convex part that obstructs the flow of cold air in the refrigerator that flows toward the door,
The ridge portion has a flat surface at the tip end portion in the overhanging direction, and the flat surface is inclined forward as it approaches the rotation axis in a state where the door is closed. , Cool storage. The cooling storage according to claim 1.
A cooling storage in which the flat surface is inclined with respect to the back surface of the door at an angle obtained by subtracting an angle in the range of 80 degrees to 100 degrees from the fully open angle of the door. The cooling storage according to claim 2.
A cooling storage in which the flat surface is inclined with respect to the back surface of the door at an angle obtained by subtracting 90 degrees from the fully open angle of the door. The cooling storage according to claim 2 or 3.
The flat surface is a cooling storage provided at a position substantially on the same plane as the end surface forming the opening of the storage body when the door is fully opened.

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