JP2019143893A - Cooling storage - Google Patents

Abstract

To provide a cooling storage capable of suppressing narrowing of a dimension of an opening due to a projecting portion when a door is opened at 90 degrees or more, while blocking flow of cold air in the storage toward a part between an opening edge portion of a storage main body and a back face of the door by the projecting portion.SOLUTION: A cooling storage is provided with a storage main body 10 having an opening 40, and a heat insulation door 11A for opening and closing the opening 40, mounted on the storage main body 10 rotatably about a rotating shaft 41A to be opened at 90 degrees or more. A left-side projecting portion 32C projecting from a back face of the heat insulation door 11A to a storage inner side in a state of closing the heat insulation door 11A, is extended to a direction of the rotating shaft 41A in the vicinity of the rotating shaft 41A. The left-side projecting portion 32C blocking flow of cold air in the storage flowing toward a part between an opening edge portion of the storage main body 10 and a back face 11C of the heat insulation door 11A, is disposed, the left-side projecting portion 32C has a flat face 34C at a tip portion in a projecting direction, and the flat face 34C is gradually inclined to a front side as it approaches the rotating shaft 41A.SELECTED DRAWING: Figure 2

Description

  The technology disclosed in the present specification relates to a cooling storage.

  Conventionally, in a cooling storage room comprising a storage body having an opening, and a door that opens and closes the opening, and is attached to the storage body so as to be rotatable around a rotation axis, and the door opens more than 90 degrees. A ridge that protrudes from the back of the door to the inside of the cabinet in the closed state, and extends 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 What is provided with the protruding item | line part which inhibits the flow of the cool air in the store | warehouse | chamber which flows toward it is known (for example, refer 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 are formed in a rectangular shape. A portion of the rib that extends in the direction of the rotating shaft in the vicinity of the rotating shaft side corresponds to the above-described protruding strip portion. The rib described in Patent Document 1 protrudes from the rear surface of the heat insulating door to the inside of the cabinet in a state where the heat insulating door is closed, and has a flat surface at the tip 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).

JP-A-2006-156571

  In the cooling storage described in Patent Document 1, when the door is opened more than 90 degrees, the dimension in the left-right direction of the opening extends in the direction of the rotation axis in the vicinity of the above-mentioned protruding strip portion (of the rib near the rotation axis). There is a problem that the size of the stored items that can be stored in the storage is reduced.

  In the present specification, the dimensions of the opening when the door is opened more than 90 degrees while obstructing the flow of cool air in the warehouse flowing between the opening edge of the storage body and the back of the door by the ridges. Disclosed is a technique for suppressing the narrowing due to the ridges.

  The cooling storage disclosed in the present specification is a storage main body having an opening on the front side, and a door for opening and closing the opening, and is attached to the storage main body so as to be rotatable around a rotation axis. A door that opens widely, and a ridge that protrudes from the back of the door to the inside of the cabinet when the door is closed, and extends in the direction of the rotation axis in the vicinity of the rotation axis, A protrusion that inhibits the flow of cool air in the storage that flows between the opening edge of the storage body and the back of the door, and the protrusion has a flat surface at the tip in the overhanging direction. The flat surface is inclined forward as it approaches the rotation axis.

  According to the above cooling storage, the flat surface of the ridge portion is inclined so as to approach the back surface of the door as it approaches the rotation axis. It can suppress that opening becomes narrow by a protruding item | line part. This prevents the flow of cool air in the warehouse flowing between the opening edge of the storage body and the back of the door by the ridges, and the size of the opening is convex when the door is opened more than 90 degrees. It can suppress becoming narrow by a strip. For this reason, it is possible to store a large stored item as compared with the conventional case.

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

  If the angle at which the flat surface is inclined is small, the effect of widening the size of the opening is reduced. On the other hand, when the angle at which the flat surface is inclined is deep, the thickness of the ridges becomes thin, and the function of inhibiting the flow of cold air in the warehouse flowing between the opening edge of the storage body and the back of the door It will decline. For this reason, in order to suppress the fall of the function which inhibits the flow of the cool air in a store | warehouse | chamber, making the dimension of an opening wide, the angle which a flat surface inclines is the range of 80-100 degree from the full open angle of a door. An angle obtained by subtracting the angle is desirable.

  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 full opening angle of the door.

  When the flat surface is inclined at an angle obtained by subtracting 90 degrees from the full opening angle, the function of obstructing the flow of cool air in the cabinet is reduced by maximizing the size of the opening and preventing the flat surface from being inclined more than necessary. Can be suppressed.

  Moreover, the said flat surface is provided in the position which becomes substantially flush with the end surface which forms the said opening of the said storage main body when the said door is a full open state.

  When the door is in a fully open state, the size of the storable item is smaller than the maximum size that can be passed through the opening if the flat surface of the ridge portion overlaps the opening when viewed from the front side. . According to the above cooling storage, the flat surface is provided at a position that is substantially flush with the end surface that forms the opening, so the stored item of the maximum size that can pass through the opening or a size close to it. Can be stored. Thereby, the convenience of the user using a cooling storage is improved.

The front view which looked at the refrigerator-freezer concerning Embodiment 1 from the front side Sectional view of the AA line shown in FIG. 1 (the state in which the left heat insulating door is opened) Perspective view of refrigeration circuit Side view of the left insulated door viewed from the right Side view of the left insulated door from below Rear view of left heat insulation door (part is shown in cross section) Sectional view along line BB shown in FIG. 6 (magnet packing is omitted) Sectional view along line CC shown in FIG. 6 (magnet packing is omitted) Sectional drawing of the state which opened the heat insulation door of the left side of the refrigerator-freezer which concerns on a comparative example

<Embodiment 1>
The first embodiment will be described with reference to FIGS. In the following description, the vertical direction and the horizontal direction refer to the vertical direction and the horizontal direction shown in FIG. In addition, the front-rear direction refers to a direction perpendicular to the paper surface in FIG.

(1) Whole structure of freezer refrigerator With reference to FIG. 1, the whole structure of the cooling storage 1 which concerns on Embodiment 1 is demonstrated. The cooling storage 1 is a horizontal refrigerator-freezer mainly used for business, and is a pair of double doors that opens and closes the storage body 10 composed of a heat insulating box having an opening 40 (see FIG. 2) on the front side, and the opening 40 of the storage body 10. The heat insulation door 11 (11A, 11B) and the 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 interior of the storage body 10 is divided into left and right by a heat insulating partition 15. The left side is a freezer compartment and the right side is a refrigerated compartment with the partition wall 15 in between. A freezer compartment evaporator 24 of the freezer circuit 20 described later is accommodated in the freezer compartment. The refrigerator compartment 25 stores a refrigerator compartment evaporator 25 of the refrigeration circuit 20 described later.

  The pair of heat insulating doors 11 are formed symmetrically. The left heat-insulating door 11A is attached to the storage body 10 so that the left and upper sides can be rotated around the rotation shaft 41A by a hinge 13. The right heat insulating door 11B is attached to the storage 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 refers to an 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 may be set by the restriction portion coming into contact with the heat insulating door 11 when the heat insulating door 11 is opened to some extent. Alternatively, the heat insulating door 11 may be set by adsorbing the heat insulating door 11 with a magnet when the heat insulating door 11 is opened to some extent, or when the heat insulating door 11 is engaged with the engaging portion when the heat insulating door 11 is opened to some extent. It may be set.

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

(2) Refrigeration circuit The refrigeration circuit 20 will be described with reference to FIG. The refrigeration circuit 20 includes a compressor 21, a condenser 22, a freezer compartment evaporator 24, a refrigerator compartment evaporator 25, and the like, which are circulated and connected by a metal refrigerant pipe 36. The refrigeration circuit 20 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 branches in the middle, and one of the branched refrigerant pipes 36 is connected to the inlet side of the freezer compartment evaporator 24 and the other refrigerant pipe. 36 is connected to the inlet side of the evaporator 25 for the refrigerator compartment. 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 are joined on the way, and the joined refrigerant pipe 36 is 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) Thermal insulation door Since the left thermal insulation door 11A and the right thermal insulation door 11B have substantially the same structure except that they are configured in a horizontally reversed shape, the left thermal insulation door 11A is taken as an example here. explain.
As shown in FIGS. 4 and 5, the heat insulating door 11 </ b> A includes a metal exterior plate 30 such as a stainless steel plate and a synthetic resin interior plate 31. 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 amount of thickness in the front-rear direction and 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 (inner side when the heat insulating door 11 </ b> A is closed). The rib 32 is for inhibiting the flow of the cool air in the store | warehouse | chamber which flows toward the opening edge part of the storage main body 10, and the interior board 31, and suppressing the cool air in a store | warehouse | chamber leaking out of the store room from there. is there. A 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 adsorbed to the opening edge of the storage body 10 (in other words, the end surface facing the front side of the storage body 10) and the end surface facing the front side of the partition wall 15 that separates the freezer compartment and the refrigerator compartment. As a result, the interior is sealed.

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

  As shown in FIGS. 7 and 8, each of the upper, lower, left, and right ridges has a flat surface 34 (34 </ b> A to 34 </ b> D) at the tip in the protruding direction (the direction from the front to the rear when the heat insulating door 11 </ b> A 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 inclined 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 flat surface 34C 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 open angle of the heat insulating door 11A. Inclined so that the angle is reduced. As described above, since the fully open angle of the heat insulating door 11A is 112 degrees in this embodiment, the angle formed by the flat surface 34C and the back surface 11C of the heat insulating door 11A is 22 degrees (= 112 degrees-90 degrees). For this reason, when the heat insulating door 11A is fully opened, the flat surface 34C of the left ridge portion 32C is perpendicular to the left-right direction.

  As shown in FIG. 2, the flat surface 34 </ b> C is provided at a position that is substantially on the same plane as the end surface 42 that forms the opening 40 of the storage body 10 when the heat insulating door 11 </ b> A is fully open.

(4) Effect of Embodiment FIG. 9 shows a case where the flat surface 134C of the left ridge 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 ridge 132C is parallel to the back surface 111C of the heat insulating door 111A, the opening dimension W2 of the opening 40 is narrowed by the left ridge 132C when the heat insulating door 111A is fully opened. For this reason, the magnitude | size of the storage thing which can be accommodated in a store | warehouse | chamber will become small.

On the other hand, as shown in FIG. 2, according to the cooling storage 1, the flat surface 34 </ b> C is inclined so as to approach the back surface 11 </ b> C of the heat insulating door 11 </ b> A as it approaches the rotating shaft 41 </ b> A. The opening dimension W1 of the opening 40 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 provided. However, since the magnet packing 33 is a member made of a synthetic resin that is elastically deformed, the stored items are stored. Sometimes the magnet packing 33 is crushed by the stored items. For this reason, it can be said that the opening dimension is W1.
For this reason, according to the cooling storage 1, the heat insulating door 11A is obstructed by the left ridge 32C while the flow of cool air in the storage flowing between the opening edge of the storage body 10 and the back surface 11C of the heat insulating door 11A is inhibited. It is possible to prevent the opening dimension from being narrowed by the left convex portion 32C when the angle is opened more than 90 degrees. Thereby, a big stored thing can be stored compared with the past.

  Moreover, 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 opened angle of the heat insulating door 11A. If the flat surface 34C is inclined at an angle obtained by subtracting 90 degrees from the full opening angle, the flat surface 34C is not inclined more than necessary while the opening size is maximized, thereby reducing the amount of cold air in the left convex portion 32C. It is possible to suppress a decrease in the function that inhibits flow.

  Further, according to the cooling storage 1, the flat surface 34 </ b> C is provided at a position that is substantially flush with the end surface 42 that forms the opening 40 of the storage body 10 when the heat insulating door 11 </ b> A is fully open. When the heat insulating door 11 </ b> A is in the fully open state, if the flat surface 34 </ b> C is on the right side of the end surface 42, the size of the storage items that can be stored is reduced accordingly. Further, if the flat surface 34C is on the left side of the end surface 42, the left ridge portion 32C has to be made small, and there is a possibility that the function of hindering the flow of cool air in the warehouse is lowered. According to the cooling storage 1, since the flat surface 34 </ b> C is provided at a position substantially flush with the end surface 42, the flow of cool air in the chamber is obstructed compared to the case where the flat surface 34 </ b> C is on the left side of the end surface 42. A large stored item can be stored 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 technology disclosed in the present specification is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope disclosed by the present specification.

  (1) In the above-described embodiment, the case where the flat surface 34C of the left ridge portion 32C is inclined so as to be perpendicular to the left-right direction when the heat insulating door 11A is fully opened has been described as an example. It does not need to be inclined so that. The inclination angle of the flat surface 34C can be appropriately determined after securing the height (width in the front-rear direction) of the left convex portion 32C so as to exert the effect of inhibiting the flow of cool air in the warehouse. 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 full opening angle of the heat insulating door 11A.

  Further, even when the angle at which the flat surface 34C is inclined is an angle obtained by subtracting an angle in the range of 80 degrees to 100 degrees from the fully opened angle of the heat insulating door 11A, the flat surface 34C is stored in the storage room when the heat insulating door 11A is in the fully opened state. The main body 10 may be provided at a position substantially flush with the end face 42 forming the opening 40. In this case, the flat surface 34C and the end surface 42 are not completely located on the same plane, but the inclination of the flat surface 34C is slight (because it is within ± 10 degrees with respect to the end surface 42). It is said that it is above. For this reason, also in this case, a large stored item can be stored while suppressing a decrease in the function of hindering the flow of cool air in the warehouse.

  (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 ridge 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 ridge portion 32D may be parallel to the back surface 11C. However, if the flat surface 34D of the right ridge portion 32D is also inclined, the inner plate 31 can be shared by the left and right heat insulating doors 11, and thus the manufacturing cost can be suppressed.

  (4) In the said embodiment, as shown in FIG. 2, when the heat insulation door 11A is a full open state, the end surface where the flat surface 34C of the left convex part 32C of the heat insulation door 11A forms the opening 40 of the storage main body 10 The case where it 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 shifted to the right side or the left side from the position shown in FIG.

DESCRIPTION OF SYMBOLS 1 ... Refrigeration refrigerator (an example of a cooling storage), 10 ... Storage body, 11 ... Thermal insulation door (an example of a door), 11C ... Back surface, 32C ... Left convex part (an example of a convex part), 34C ... Flat surface, 40 ... Opening, 41A, 41B ... Rotating shaft

Claims (4)

A storage body having 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 about a rotation axis, and opens more than 90 degrees;
In the state where the door is closed, it is a ridge that protrudes from the back surface of the door to the inside of the cabinet, and extends in the direction of the pivot axis in the vicinity of the pivot shaft, and the opening edge of the storage body A ridge that inhibits the flow of cold air in the warehouse flowing between the portion and the back of the door;
The protrusion has a flat surface at the tip in the overhanging direction, and the flat surface is inclined forward as it approaches the rotation shaft in a state where the door is closed. , Cooling storage. The cooling storage according to claim 1,
The said flat surface is a cooling store | warehouse | chamber which inclines at the angle which reduced the angle of the range of 80-100 degrees from the full open angle of the said door with respect to the back surface of the said door. A cooling storehouse according to claim 2,
The cooling storage, wherein the flat surface is inclined at an angle obtained by subtracting 90 degrees from the full opening angle of the door with respect to the back surface of the door. The cooling storage according to claim 2 or claim 3,
The said flat surface is a cooling storage provided in the position which becomes substantially flush with the end surface which forms the said opening of the said storage main body when the said door is a full open state.

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