CN117642589A - Storage warehouse - Google Patents

Abstract

The invention provides a storage house capable of suppressing dew condensation. The refrigerator (100) comprises: an inner box (11) with an opening at the front side; a heat shield that is a form heat shield or a vacuum heat shield; and a frame (20), wherein the heat insulator is arranged outside the inner box (11), and the frame (20) is arranged outside the heat insulator. The refrigerator (100) further includes a heat-insulating box (13) formed by assembling a plurality of heat-insulating material blocks as heat-insulating materials, wherein the front side of the heat-insulating box (13) is opened, and the inner box (11) is fitted into the opening of the heat-insulating box (13).

Description

Storage warehouse

Technical Field

The present disclosure relates to a storage.

Background

Regarding the structure of a refrigerator, for example, patent document 1 describes that a heat insulating plate is assembled outside a frame of the refrigerator (paragraph 0031, fig. 4, etc.). Each heat insulating plate is arranged in the window part of the framework and is surrounded by the framework part. The thickness of each insulation board is set so that the insulation board does not protrude outward from the frame member 22 of the grid frame 20 (0060 section, etc.).

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open No. 2020-91073

Disclosure of Invention

Problems to be solved by the invention

In the technique described in patent document 1, since the grill frame is provided on the inner side of the heat shield plate, cold air may collide with the grill frame and condensation may occur. Particularly, in the grill frames, the portion in front of the door side is likely to be in contact with warm external air, and the warm grill frames are likely to be in contact with cool air in the warehouse, so that condensation is likely to occur (the upper left and lower left grill frames in fig. 1 of patent document 1, etc.). There is room for improvement in this regard.

Means for solving the problems

The storage of the present disclosure includes: an inner box with an opening at the front side; a heat shield that is a form heat shield or a vacuum heat shield; and a frame, wherein the heat insulating member is arranged outside the inner box, and the frame is arranged outside the heat insulating member.

Drawings

Fig. 1 is a perspective view of a refrigerator according to an embodiment.

Fig. 2 is a longitudinal sectional view of the refrigerator according to the embodiment, taken along line II-II shown in fig. 1.

Fig. 3A is a perspective view of an inner box included in the refrigerator according to the embodiment.

Fig. 3B is a longitudinal sectional view of the refrigerator according to the embodiment, taken along line III-III shown in fig. 3A, when the inner case is cut.

Fig. 4 is a perspective view of a heat insulation box included in the refrigerator according to the embodiment.

Fig. 5 is an exploded perspective view of the heat insulation box included in the refrigerator according to the embodiment.

Fig. 6 is a perspective view of a rack included in the refrigerator according to the embodiment.

Fig. 7 is a perspective view of a refrigerator according to an embodiment in which an upper plate is provided on a rack.

Fig. 8 is a cross-sectional view showing a cross section of the refrigerator according to the embodiment taken along line VIII-VIII shown in fig. 1.

Fig. 9 is a partial enlarged view of a region K7 in fig. 8 of the refrigerator according to the embodiment.

Fig. 10 is a perspective view of a left side cross plate and a heat transfer pipe included in the refrigerator according to the embodiment.

Fig. 11 is a partial enlarged view of a region K8 in fig. 8 of the refrigerator according to the embodiment.

Fig. 12 is a perspective view showing a state in which a rack member is provided in an inner box assembly of the refrigerator according to the embodiment.

Fig. 13 is a partial enlarged view of a region K9 in fig. 12 of the refrigerator according to the embodiment.

Fig. 14 is an explanatory view showing a region where aluminum strips are attached to a left side cross plate and a heat transfer tube of the refrigerator according to the embodiment.

Fig. 15 is a plan view of an inner box assembly included in the refrigerator according to the embodiment.

Fig. 16 is a longitudinal sectional view of a control panel including the refrigerator according to the embodiment.

Fig. 17 is a partial enlarged view of a region K10 in fig. 16 of the refrigerator according to the embodiment.

Fig. 18A is a perspective view of a refrigerator according to an embodiment in which a heat transfer tube is not provided in a bottom plate.

Fig. 18B is a perspective view of a state in which a heat transfer pipe is provided in a bottom plate of the refrigerator according to the embodiment.

Fig. 19A is a perspective view of a refrigerator according to an embodiment in which a rear plate is not provided with a heat transfer tube.

Fig. 19B is a perspective view of a state in which a heat transfer pipe is provided in a rear plate included in the refrigerator according to the embodiment.

Fig. 20 is a bottom view of a refrigerator according to a modification.

Detailed Description

Embodiment(s)

< Structure of refrigerator >

Fig. 1 is a perspective view of a refrigerator 100 according to an embodiment.

The refrigerator 100 (storage) is a device for storing food or the like at a low temperature, and is rectangular parallelepiped in the example of fig. 1. In addition to the single use of the refrigerator 100, a plurality of refrigerators 100 may be stacked in the vertical direction or may be used in parallel in the lateral direction, for example. As shown in fig. 1, the refrigerator 100 includes a housing 1, a door 2, and a plurality of legs 3. One or more storage compartments 4 (see fig. 2) are provided inside the casing 1. The storage compartment 4 may be a refrigerating compartment or a freezing compartment.

The casing 1 includes an inner case 11 (see fig. 2) made of resin and an outer plate 12 made of steel plate (see fig. 2) that form the storage chamber 4 (see fig. 2), and includes a heat-insulating case 13 (see fig. 2) interposed between the inner case 11 and the outer plate 12. The housing 1 includes a detachable top plate 14 as a resin sheet provided on the upper surface. When another refrigerator (not shown) is stacked on the upper side of the refrigerator 100, for example, the top plate 14 is detached. In a state where the top plate 14 is removed, the upper plate 12a (see fig. 7) is exposed. In addition, the top plate 14 may be configured not to be detachable.

The door 2 is a door that closes an opening 11a (see fig. 2) of the inner box 11. The door 2 is rotatable about an axis of a hinge (not shown), and is opened and closed when taking out and putting in foods. A handle 2a for a user to grasp is provided on the upper surface or the like of the door 2. The door 2 may be a single-open type or a double-open type.

A plurality of legs 3 support the housing 1. In the example of fig. 1, one leg 3 is provided on each of the left and right sides on the front side of the casing 1 having a rectangular bottom view. These legs 3 are screwed with, for example, female screw portions (not shown) provided on the lower surface of the housing 1, and the height position of the housing 1 is adjusted (i.e., functions as an adjuster) by the depth of the screwing. The rear side of the housing 1 is supported by a convex portion 90a (see fig. 2) of a base member 90 (see fig. 2) forming the lower surface of the housing 1. Further, a pair of left and right legs may be provided on the rear side of the housing 1.

Fig. 2 is a longitudinal sectional view of the refrigerator 100 taken along line II-II shown in fig. 1.

The inner case 11 shown in fig. 2 is a resin member that forms the storage chamber 4 together with the door 2, and has an opening on the front side. As shown in fig. 2, in a state where the door 2 is closed, the opening 11a of the inner box 11 is closed by the door 2. The plurality of shelf ribs 11b of the inner box 11 are provided with shelves 15 as prescribed. The heat insulating box 13 is a box for suppressing heat transfer between the inside and the outside of the refrigerator 100, and has an opening on the front side. The inner box 11 is fitted into the opening of the heat insulation box 13.

The refrigerator 100 includes a compressor 31, a radiator (not shown), a capillary tube (not shown), and a cooler 51. The refrigerant circulates sequentially through the compressor 31, the radiator, the capillary tube, and the cooler 51. Thereby, heat exchange is performed between the refrigerant in the cooler 51 and the air in the storage chamber 4, and the food and the like in the storage chamber 4 are cooled.

As shown in fig. 2, a machine room 41 is provided in a lower portion of the back surface side (rear surface side) of the refrigerator 100. The machine chamber 41 is a space in which the compressor 31 and a radiator (not shown) are provided. The cooling unit 50 shown in fig. 2 is configured by unitizing a cooler 51 and a fan (not shown), and is provided inside the inner box 11.

A dew receiving tray 32 is provided below the cooler 51 at a position inside the inner box 11. The dew receiving pan 32 receives dew condensation water dropped from the cooler 51. The dew receiving pan 32 includes a funnel portion 32a that guides dew water toward the discharge pipe 33. The funnel 32a is inserted in the discharge pipe 33 near its downstream end. In other words, the drain pipe 33 is connected to the dew receiving pan 32. The drain pipe 33 is a pipe that guides the dew condensation water flowing in from the dew condensation water collecting tray 32 to an evaporation tray 34 (see fig. 7) of the machine chamber 41, and extends substantially in the vertical direction. The funnel portion 32a of the joint dew point tray 32 (a part of the joint dew point tray 32) or the drain pipe 33 sequentially penetrates the through hole 11h (the 2 nd through hole: see fig. 3A) of the inner box 11 and the through hole 13h (the 2 nd through hole: see fig. 4) of the heat insulation box 13 in the vertical direction.

Fig. 3A is a perspective view of the inner box 11 included in the refrigerator.

As described above, the inner case 11 shown in fig. 3A is a resin member forming the storage chamber 4 (see fig. 2). The inner case 11 includes a main body portion 11c having a front side opening, and a quadrangular frame-like flange 11d extending outward from the edge of the opening 11a of the main body portion 11 c. In addition, the body portion 11c and the flange 11d are integrally formed.

The flange 11d is a portion for positioning the heat-insulating box 13 (see fig. 4) and the cross plates 12b, 12c (see fig. 8) to be described later. That is, in a state where the inner case 11 is fitted into the heat-insulating case 13 (see fig. 4), the distal end of the heat-insulating case 13 is positioned by touching the flange 11d (see also fig. 9). The positioning of the cross plates 12b, 12c (see fig. 8) will be described later.

A groove 11m for disposing a heat transfer pipe (not shown) is provided over substantially the entire circumference on the front surface of the flange 11d shown in fig. 3A. The medium-temperature high-pressure refrigerant (hot gas) compressed by the compressor 31 (see fig. 2) and condensed by the radiator (not shown) flows through the heat transfer pipe (not shown) provided in the tank 11m. This can suppress dew condensation in the vicinity of the opening 11a of the inner case 11.

The rectangular frame-shaped flanges 11d are provided with locking grooves 11v (reference numerals are not shown in fig. 3A, see fig. 9) at portions extending in the vertical direction on the left and right sides. The locking groove 11v (see fig. 9) is a groove for locking the left and right cross plates 12b, 12c (see fig. 8), and is provided in the vertical direction. The locking groove 11v (see fig. 9) is provided laterally inward of the groove 11m in which the heat transfer pipe is provided.

Fig. 3B is a longitudinal sectional view of the inner case 11 taken along line III-III shown in fig. 3A.

As shown in fig. 3A and 3B, the inner box 11 has a plurality of shelf ribs 11B. The shelf rib 11b is a portion for supporting the shelf 15 (see fig. 2), and protrudes laterally inward from the inner surface of the inner case 11, and extends in the front-rear direction. The inner box 11 is formed to have a predetermined wall thickness (for example, an average wall thickness of 3mm or more) at the inner part including the shelf ribs 11b. In particular, due to the thick wall of the portion of the shelf rib 11b, the mass load of the food or the like placed on the shelf 15 (see fig. 2) can be sufficiently supported even if the molded heat insulating material or the like is not provided inside the shelf rib 11b. In addition, particularly, due to the thick wall of the portion other than the shelf rib 11b, the load can be sufficiently supported even when another refrigerator is stacked on the refrigerator 100. As a material of the inner case 11, ABS resin or PS resin can be used. In the example of fig. 3B, the wall thickness of the portion of the inner case 11 other than the shelf rib 11B is equal to the wall thickness of the shelf rib 11B, and the rigidity of the inner case 11 is sufficiently ensured. The wall thickness of the portion of the inner case 11 other than the shelf rib 11b may be different from the wall thickness of the shelf rib 11b.

As shown in fig. 3A, a recess 11e is provided in a lower portion of the rear surface side of the inner box 11. The recess 11e is shaped to correspond to the machine chamber 41 (see fig. 2), and is recessed in an L-shape toward the inside of the container in side view. In a state where the door 2 (see fig. 2) of the refrigerator 100 is closed, a storage compartment 4 (see fig. 2) having a predetermined shape (a shape different from a rectangular parallelepiped) is formed by an inner wall surface of the door 2 and an inner wall surface of the inner box 11.

A through hole 11h (2 nd through hole) for passing through the funnel portion 32a of the joint dew point tray 32 (see fig. 2) and the drain pipe 33 (see fig. 2) is provided at a predetermined portion of the recess 11e in the inner case 11. A through hole 11z (1 st through hole) for passing a suction pipe (not shown) or a capillary (not shown) of the refrigerant therethrough is provided in the other portion (the corner on the left rear side in fig. 3A) of the concave portion 11e in the inner case 11.

Fig. 4 is a perspective view of the heat insulation box 13 included in the refrigerator.

As described above, the heat-insulating box 13 (see also fig. 2) shown in fig. 4 is a box for suppressing heat transfer between the inside and the outside of the refrigerator 100 (see fig. 1), and has an opening at the front side thereof. The inner wall surface of the heat insulating box 13 has a shape corresponding to the outer wall surface of the inner box 11 (see fig. 3A). The heat-insulating box 13 (heat insulator ) is disposed outside the inner box 11 (see fig. 2) in a state where the inner box 11 (see fig. 3A) is fitted into the opening 13A of the heat-insulating box 13. As shown in fig. 4, a recess 13e is provided in a lower portion of the rear surface side of the heat insulating box 13. The recess 13e is shaped to correspond to the machine chamber 41 (see fig. 2), and is recessed in an L-shape toward the inside of the container in side view.

As described above, the inner box 11 (see fig. 3A) has the shelf rib 11b (see fig. 3A), but the heat insulating box 13 does not particularly have a protrusion corresponding to the shelf rib 11 b. In the example of fig. 3A, a portion corresponding to the shelf rib 11b of the inner box 11 is formed in a flat shape on the inner side surface of the heat insulating box 13. That is, the heat insulation box 13 can be replaced with another inner box having a different position or shape of the shelf rib. The inner box 11 can be removed from the heat insulating box 13 and replaced with another inner box having a different interior. Accordingly, since other types of inner boxes such as different positions of the shelf ribs can be fitted into the opening 13a of the heat insulation box 13, the heat insulation box 13 can be used in general. As a result, the manufacturing cost of the refrigerator 100 (see fig. 1) and other types of refrigerators can be reduced. The heat insulation box 13 may be formed so that other inner boxes having different positions or shapes of at least one of a pull-out door rail (not shown), a predetermined convex portion (not shown), and a predetermined concave portion and/or a hole (not shown) may be fitted in the inner boxes, in addition to the shelf ribs. As long as the inner box includes a pull-out door rail, a pull-out door may be used instead of the rotary door 2 (not shown). The storage object can be locked to the inner case 11 as long as the inner case includes a predetermined convex portion, concave portion, and hole instead of or in addition to the shelf rib 11 b. The storage material is not necessarily limited to food. The inner case 11 may be configured to be detachable, and the inner case 11 may be replaced at the user's home. Thus, the user can customize the internal structure of the refrigerator 100 by changing the inner box 11 according to his/her preference and use. The replacement may be performed by the user himself or by a service person dispatched from the manufacturer of the refrigerator 100 or the like. To accommodate customization, a manufacturer of the refrigerator 100 or the like can manufacture and sell a variety of inner boxes 11 having different internal structures from each other.

A through hole 13h (the 2 nd through hole) for passing through the funnel portion 32a of the dew condensation tray 32 (see fig. 2) and the drain pipe 33 (see fig. 2) is provided at a predetermined portion of the recess 13e in the heat insulation box 13. A through hole 13z (1 st through hole) for passing a suction pipe (not shown) or a capillary (not shown) of the refrigerant therethrough is provided in the heat insulating box 13 at other portions (the left rear corner in fig. 4) of the recess 13 e. A rectangular hole 13y for providing an in-house lamp 83 (see fig. 15) assembled to the heat insulator is provided at the top of the heat insulating box 13. By first assembling the in-house lamp 83 to the heat insulator block, the amount of work for attaching the hole 13y can be reduced, and the amount of work in the vicinity of the heat insulator box 13 can be reduced.

The heat insulation box 13 is formed by assembling a plurality of heat insulator blocks 131 to 136 (heat insulators). The heat insulator blocks 131 to 136 are molded heat insulator (expanded polystyrene or the like) or vacuum heat insulator, and are in a molded state.

By using the heat insulator thus molded, for example, a step of injecting liquid foamed polyurethane into a gap between the inner case 11 (see fig. 2) and the outer panel 12 (see fig. 2) is not required at the time of manufacturing. In this way, in addition to the metal mold for injecting the foaming urethane, a tool or the like for applying pressure from the inside of the refrigerator to the outside of the refrigerator so as to push back the foaming pressure is not required, and the manufacturing cost and the equipment cost of the refrigerator 100 can be significantly reduced. In addition, since the refrigerator 100 of the present embodiment does not require the use of a foamed polyurethane, the production of other refrigerators using a foamed polyurethane is hardly hindered. Accordingly, the reduction in the overall manufacturing efficiency including other types of refrigerators can be suppressed.

Fig. 5 is an exploded perspective view of the heat insulation box 13 included in the refrigerator.

As shown in fig. 5, the heat insulating box 13 includes 6 heat insulator blocks 131 to 136 having different shapes. The heat insulator block 131 on the rear surface side is a member forming a part of the rear surface of the heat insulating box 13, and has a plate shape. The heat insulator block 131 is rectangular in front view, and has a predetermined stepped edge.

By forming the edge portion into a stepped shape in this way, the joint (e.g., joints 13u and 13v shown in fig. 2) between the insulator block 131 and the other insulator blocks 132 to 135 is broken-line-shaped (crank-shaped) in a cross-sectional view. Here, the "in cross-section" refers to a cross section of a joint when these insulation blocks are cut with respect to a plane perpendicular to each surface of 2 insulation blocks (e.g., insulation blocks 131, 134) forming the joint. The joints of the blocks in contact with each other among the heat insulator blocks 131 to 136 are folded in a cross-sectional view.

As described above, since the joints of the insulator blocks 131 to 136 are in a folded shape, the movement of the insulator blocks (for example, the movement in the direction of the inside of the warehouse or the outside of the warehouse) is restricted as compared with the case where the joints are in a straight shape. Further, the creepage distance of the joint of the insulator blocks 131 to 136 becomes long, and therefore, the frictional force between the insulator blocks is ensured. In addition, even when moisture enters the gap between the heat-insulating box 13 and the outer panel 12 (see fig. 2), it is possible to suppress moisture from entering the gap between the heat-insulating box 13 and the inner box 11.

The heat insulator block 131 has protrusions 131a, 131b, 131c at the edges thereof. These protruding portions 131a, 131b, 131c are portions to be assembled with the other heat insulator blocks 132 to 134, and one or a plurality of protruding portions are provided on each side of the rectangular heat insulator block 131. For example, the left convex portion 131a of the insulator block 131 is fitted into the left concave portion 133a of the insulator block 133. Similarly, the other insulator blocks 132, 134, 135 are assembled in this order on the right side, upper side, and lower side of the insulator block 131.

The right heat insulator block 132 is a member that forms a part of the rear surface and a part of the recess 13e (see fig. 4) in addition to a part of the right surface of the heat insulator box 13. As shown in the region K1, the vicinity of the edge 132g of the heat insulator block 132, which is a joint with another heat insulator block 131, is bent in a curved shape, and is bent laterally inward (left side in fig. 5). Further, when the insulator block 132 is viewed from the side, a recess 132e is provided in the lower portion of the rear side. The recess 132e is a portion where a part of the recess 13e (see fig. 4) of the heat insulation box 13 is formed.

Further, the right heat insulator block 132 includes a rim 132g having a predetermined stepped shape. In the example of fig. 5, at least the upper side and the lateral inner side of the edge portion 132g of the heat insulator block 132 have a predetermined step shape. These stepped shapes are used for assembly with other insulation blocks 131, 134, 135.

The left heat insulator block 133 is a member that forms a part of the rear surface and a part of the recess 13e (see fig. 4) in addition to a part of the left surface of the heat insulator box 13. Since the left insulator block 133 is substantially symmetrical to the right insulator block 132, a detailed description thereof will not be repeated.

The upper heat insulator block 134 is a member that forms a part of the rear surface and a part of the left and right side surfaces in addition to the upper surface of the heat insulator box 13. The heat insulator block 134 includes a horizontal portion 134a substantially parallel to the horizontal plane and extension portions 134b extending downward from right, left, and rear ends of the horizontal portion 134 a. That is, as shown in the regions K2 and K3, the vicinity of the edge 134g of the heat insulator block 134, which is a joint with the other heat insulator blocks 131 to 133, has a predetermined bent shape, and is bent downward from the horizontal direction.

By adopting such a structure, the joints between the upper heat insulator block 134 and the other heat insulator blocks 131 to 133 are located on the side surfaces and the back surface of the heat insulating box 13. That is, the upper surface of the heat insulating box 13 (see also fig. 4) is not provided with a joint between the heat insulator blocks. Therefore, even when, for example, in addition to water that has fallen onto the upper surface of the casing 1 (see fig. 1), highly humid air enters the gap between the heat insulation box 13 and the outer panel 12 (see fig. 2), it is possible to suppress water or the like from entering the gap between the heat insulation box 13 and the inner box 11.

The edge 134g of the heat insulator block 134 has a predetermined step shape, and corresponds to the edges of the right and left heat insulator blocks 132 and 133 in addition to the back side heat insulator block 131. The joint 13p (see fig. 4) between the insulator block 134 and the insulator block 132 on the right side is folded. The same applies to the joint 13q (see fig. 4) between the insulator block 134 and the insulator block 133 on the left side.

The heat insulator block 135 shown in fig. 5 is a member that forms a part of the rear surface of the heat insulating box 13 in addition to the upper surface and the step surface of the recess 13e (see fig. 4) of the heat insulating box 13. The insulator block 135 is crank-shaped in side view, and is assembled to the lower side of the insulator block 131 on the rear side. As shown in the region K4, the vicinity of the edge 135g of the joint with another heat insulator block 131 is formed in a predetermined bent shape, and is bent upward from the horizontal direction. The edge 135g has a predetermined stepped shape and is shaped to correspond to the edge of the heat insulator block 131 on the rear surface side. At the lower edge of the heat insulator block 135, 2 protruding portions 135a protruding downward are provided. These protruding portions 135a can be fitted into the recessed portions 136a of the lower heat insulator block 136.

The heat insulator block 136 shown in fig. 5 is a member that forms a part of the stepped surface of the recess 13e (see fig. 4) and a part of the left and right side surfaces in addition to the bottom surface of the heat insulator box 13. The heat insulator block 136 includes a planar portion 136b substantially parallel to the horizontal plane and extension portions 136c extending upward from right, left, and rear ends of the planar portion 136b, respectively.

As shown in the regions K5 and K6, the vicinity of the edge 136g of the heat insulator block 136, which is a joint with the other heat insulator blocks 132, 133, and 135, is bent in a predetermined bent shape, and is bent upward from the horizontal direction. The edge 136g has a predetermined step shape and corresponds to the edges of the right and left heat insulator blocks 132 and 133 in addition to the heat insulator block 131 on the rear surface side. The joint 13r (see fig. 4) between the insulator block 136 and the insulator block 132 on the right side is folded. The same applies to the joint 13s (see fig. 4) between the insulator block 136 and the insulator block 133 on the left side.

The heat insulating box 13 is formed by assembling a plurality of heat insulator blocks 131 to 136 into a box shape with an open front side (see fig. 4). In this state, the wall surface near the edge of the opening 13a of the heat insulating box 13 is substantially flush. By using the plurality of heat insulator blocks 131 to 136 as in the present embodiment, the heat insulating box 13 can be formed appropriately even when the storage compartment 4 (see fig. 2) has a complicated non-rectangular parallelepiped shape.

As shown in fig. 4, it is preferable that the heat insulating box 13 is not provided with a joint between the heat insulator blocks 131 to 136 at the corner (corner when viewed from the inside). This facilitates the work of attaching adhesive tape or the like to the joints of the heat insulator blocks 131 to 136.

When the heat insulator blocks 131 to 136 are assembled, for example, in a state where the heat insulator block 131 on the rear surface side is placed on the ground or a predetermined mounting table (not shown), the other heat insulator blocks 132 to 135 are assembled to the heat insulator block 131, and the remaining heat insulator block 136 is assembled. At this time, adhesive tapes (not shown) may be attached to the joints of the heat insulator blocks 131 to 136 from the inside. By attaching the adhesive tape to the joint in this way, it is possible to suppress the positional displacement of the heat insulator blocks 131 to 136, and also to suppress the entry of air and moisture through the minute gaps of the joint. As the adhesive tape attached to the joint of the heat insulator blocks 131 to 136, paper adhesive tape, plastic adhesive tape, aluminum tape, or the like can be used. The tape is attached from the inside, and a heat transfer tube 35 (see fig. 10) described later is laid on the outside. Thus, the heat transfer tube 35 does not interfere with the work when the tape is attached, and the efficiency is high.

When the inner case 11 (see fig. 3A) is fitted into the opening 13A (see fig. 4) of the heat-insulating case 13, a buffer material may be provided on at least a part of the opposed surfaces of the heat-insulating case 13 and the inner case 11. As such a cushioning material, for example, a double-sided adhesive sheet (Miramat (registered trademark)) or a pressure-sensitive adhesive sheet (registered trademark) obtained by foaming polyethylene to a high degree can be used. Accordingly, the gap between the inner box 11 and the heat-insulating box 13 can be sealed, and the inner box 11 and the heat-insulating box 13 can be bonded or adhered. As shown in fig. 2, the cushioning material is preferably provided on the back surface B1 of the storage chamber and the front surface B2 of the machine chamber, which are surfaces substantially parallel to the opening 13 a. In this way, work is easy at the time of installing the inner box 11.

A seal (not shown) may be provided at a portion where the heat insulating box 13 contacts the flange 11d (see fig. 3A) of the inner box 11. That is, the seal may be sandwiched between the flange 11d of the inner box 11 and the vicinity of the edge of the opening 13a (see fig. 4) of the heat insulating box 13. This can prevent moisture from entering through the minute gap between the inner case 11 and the heat insulating case 13. A seal (not shown) may be provided over the entire periphery of the rear surface of the flange 11d (see fig. 3A), or a seal may be provided at a part of the flange 11 d.

Hereinafter, the assembly in which the inner box 11 (see fig. 3A) is fitted into the heat insulation box 13 is referred to as an inner box assembly 6 (see fig. 12). In the inner box assembly 6, the inner box 11 and the heat insulation box 13 are substantially integrated (not decomposed even when the handle is removed), and therefore, installation work of the rack 20 (see fig. 6) to be described later and the like are easy to perform.

Fig. 6 is a perspective view of the rack 20 included in the refrigerator.

The refrigerator 100 (see fig. 1) includes a metal rack 20 shown in fig. 6. The frame 20 includes an upper end side support member 21 (coupling member), an upper end side connection member 22, a front side vertical support member 23, a rear side vertical support member 24, a lower end side support member 25 (coupling member), and a lower end side connection member 26. Further, in addition to the above-described structure, the frame 20 includes a base plate 27 and a machine room supporting member 28.

The pair of upper end side support members 21 are metal members provided near the upper end of the inner box assembly 6 (see fig. 12). More specifically, the upper end side support member 21 is provided near a ridge line between the upper surface and the side surface of the inner box assembly 6 (see fig. 12) and extends in the front-rear direction. The upper end side support member 21 also has a function of connecting the vicinity of the upper end of the front side vertical support member 23 and the vicinity of the upper end of the rear side vertical support member 24.

The upper end side connecting member 22 is a metal member provided near a ridge line between the upper surface and the front surface of the inner box assembly 6 (see fig. 12), and extends in the left-right direction. Both ends of the upper end side connecting member 22 are fixed to the vicinity of the distal ends of the pair of upper end side supporting members 21 by screws or the like. Further, another upper end side connecting member (not shown) may be further provided and fixed to the vicinity of the rear ends of the pair of upper end side supporting members 21.

The front pair of vertical support members 23 and the rear pair of vertical support members 24 are metal members that allow the load acting through the upper end side support member 21 to act on the lower side through themselves. These vertical support members 23, 24 are provided near the ridge line between the adjacent side surfaces of the inner box assembly 6 (see fig. 12), and extend in the vertical direction. The vicinity of the upper ends of the vertical support members 23, 24 is fixed to the upper end side support member 21 by screws or the like.

The pair of lower end side support members 25 (see also fig. 7) are metal members that receive the load applied via the vertical support members 23, and are provided near the lower ends of the inner box assembly 6 (see fig. 12). More specifically, the lower end side support member 25 is provided near a ridge line between the bottom surface and the side surface of the inner box assembly 6 (see fig. 12) and extends in the front-rear direction.

The lower end side connecting member 26 (see also fig. 7) is a metal member connected to the lower end side supporting member 25, and extends in the left-right direction. Both ends of the lower end side connecting member 26 are connected to the vicinity of the front end of the lower end side supporting member 25. As described above, the rack 20 of the refrigerator 100 is arranged so as to correspond to the ridge line of the rectangular parallelepiped inner box assembly 6 (see fig. 12). Thus, for example, when a plurality of refrigerators 100 are stacked in the vertical direction, the load acting from above can be firmly supported by the rack 20. In addition, even when an object having a large mass is placed on the top plate 14 (see fig. 1), for example, it is possible to firmly support the object by the frame 20. In particular, the 4 vertical support members 23 and 24 made of metal are very rigid against a load from above, and are therefore preferable for stacking a plurality of refrigerators 100.

The bottom plate 27 shown in fig. 6 is a metal plate for supporting a load from above in addition to separating the machine chamber 41 (see fig. 2) from other parts. The bottom plate 27 is crank-shaped in a longitudinal section view, and is provided on the machine room support member 28. The bottom plate 27 is provided with a through hole 27h (No. 2 through hole) for passing through the funnel 32a of the dew condensation tray 32 (see fig. 2) and the drain pipe 33 (see fig. 2). A through hole 27z (1 st through hole) for passing a suction pipe (not shown) and a capillary tube (not shown) of the refrigerant therethrough is provided in other portions (the corner portion on the rear left side in fig. 6) of the bottom plate 27. In addition, the bottom plate 27 may be formed of a plurality of members.

Fig. 7 is a perspective view of the refrigerator in a state where the upper plate 12a is provided on the rack 20.

In fig. 7, the bottom plate 27 (see fig. 6) is not shown. The upper plate 12a shown in fig. 7 is one of the outer plates 12 (see fig. 1), and is fixed to a pair of upper end side support members 21 (see fig. 6) with screws or the like. In a state where the top plate 14 (see fig. 1) is removed, the upper plate 12a is exposed on the upper surface of the housing 1 (see fig. 1). The upper plate 12a may be made of metal or resin.

The evaporation tray 34 shown in fig. 7 is a tray for evaporating dew water or the like dropped through the discharge pipe 33 (see fig. 2), and is disposed above the base member 90 (see fig. 2). A fan (not shown) for circulating air from the outside through the machine chamber 41 (see fig. 6) is provided in the vicinity of the evaporation pan 34. By blowing air from the fan toward the evaporation pan 34, evaporation of water stored in the evaporation pan 34 can be promoted.

The machine room supporting member 28 shown in fig. 7 is a metal member for providing the bottom plate 27 (see fig. 6). The machine chamber support member 28 is in an upside-down L shape in side view, and is fixed to the lower end side support member 25 in the vicinity of the lower end thereof. The machine room support member 28 includes a vertical portion 28a extending in the up-down direction and a lateral portion 28b extending rearward from an upper end of the vertical portion 28 a. For example, the base member 90 (see fig. 2) and the bottom plate 27 support the weight of the refrigerator 100 (see fig. 2) alone and the mass load of food or the like. In the present embodiment, the shape of the storage chamber 4 (see fig. 2) is different from that of a rectangular parallelepiped, and therefore, the base member 90 (see fig. 2) is reinforced by providing a bottom plate 27.

For convenience of explanation, although fig. 6 and 7 show a state in which the frame 20 is assembled, in practice, the inner box assembly 6 (see fig. 12) in which the inner box 11 (see fig. 3A) is fitted into the heat insulation box 13 (see fig. 4) is provided with the vertical support members 23, 24, etc. one by one, respectively. In the present embodiment, a heat-insulating box 13 (heat insulator) is disposed outside the inner box 11, and a frame 20 is disposed outside the heat-insulating box 13. As will be described later, a plurality of outer plates 12 are fixed to the outside of the frame 20 (see fig. 8).

Fig. 8 is a cross-sectional view showing a cross-section of the refrigerator 100 taken along line VIII-VIII shown in fig. 1.

The outer panel 12 includes a left side cross plate 12b, a right side cross plate 12c, and a rear plate 12d in addition to the upper plate 12a shown in fig. 7. The left cross plate 12b is a rectangular steel plate forming the left side surface of the housing 1 (see fig. 1). The right side cross plate 12c is a rectangular steel plate forming the right side surface of the case 1 (see fig. 1). These cross plates 12b, 12c are disposed laterally outside the heat insulation box 13. The rear plate 12d is a rectangular steel plate forming the rear surface of the case 1 (see fig. 1), and is disposed on the rear side of the heat insulation box 13. Further, since the cross plates 12b, 12c and the rear plate 12d are thin, they are linear in the drawing of fig. 8, but the cross plates 12b, 12c and the rear plate 12d made of steel plates are provided outside the heat insulation box 13.

As shown in fig. 8, vertical support members 23, 24 are provided at four corners when the inner box assembly 6 in which the inner box 11 is fitted into the heat insulating box 13 is viewed in cross section (see also fig. 6). More specifically, 1 vertical support member 23 is provided at each of the left and right corners of the front side of the inner box assembly 6 (see also fig. 6). Similarly, 1 additional vertical support member 24 is provided at each of the left and right corners of the rear side of the inner box assembly 6 (see also fig. 6).

Fig. 9 is a partial enlarged view of a region K7 in fig. 8.

The front vertical support member 23 shown in fig. 9 is L-shaped in cross section, and extends vertically long (see also fig. 6). In the vertical support member 23, a portion parallel to the left-right direction is in contact with a flange 11d (see also fig. 3A) of the inner box 11, and the left edge of the flange 11d contacts a corner portion having an L-shape in the cross-sectional view. Further, in the vertical support member 23, a portion parallel to the front-rear direction (inner surface of the rear portion) is in contact with the side surface of the heat insulation box 13. That is, the front vertical support member 23 is positioned by the flange 11d of the inner box 11 and the heat insulating box 13.

As described above, the flange 11d of the inner case 11 is provided with the locking groove 11v (groove). The locking groove 11v is a portion that can be locked by the locking portion 122b (see fig. 10) of the cross plate 12 b. Next, the structure of the left side cross plate 12b will be described with reference to fig. 10.

Fig. 10 is a perspective view of the left side cross plate 12b and the heat transfer tube 35 included in the refrigerator.

In fig. 10, a heat transfer pipe 35 provided on the inner side surface of the cross plate 12b is shown in addition to the cross plate 12b provided on the left side (lateral side) of the heat insulation box 13 (see fig. 8) among the plurality of outer plates 12 (see fig. 1). The cross plate 12b includes: a planar portion 121b having a planar shape; a locking portion 122b connected to the front side of the planar portion 121b; and an overlapping portion 123b connected to the rear side of the planar portion 121 b. In addition, the cross plate 12b includes a fixing portion 124b and an installation portion 125b in addition to the above-described structure.

The planar portion 121b has a rectangular thin plate shape. The machine chamber support member 28 is fixed to the inner side of the planar portion 121b in addition to the heat transfer pipe 35 (see also fig. 7).

The locking portion 122b is a portion locked to a locking groove 11v (groove) of the flange 11d of the inner case 11 (see fig. 9), and extends laterally inward (rightward in fig. 10) from the front end of the planar portion 121 b. Further, the locking portion 122b includes a claw portion 126b extending from the edge of the lateral inner side to the rear side. That is, in a cross-sectional view, the vicinity of the front end of the cross plate 12b is formed in a hook shape (J-shape). The locking portion 122b extending vertically is provided with a claw portion 126b in a region corresponding to the flange 11d of the inner case 11 (see fig. 9).

The overlapping portion 123b shown in fig. 10 is a portion extending from the rear end of the planar portion 121b to the laterally inner side (right side in fig. 10). When the cross plate 12b is provided in the heat-insulating box 13 (see fig. 8), the overlapping portion 123b overlaps the vicinity of the edge of the rear plate 12d (see fig. 8).

The fixing portion 124b shown in fig. 10 is a portion extending upward from the upper end of the locking portion 122 b. The fixing portion 124b is provided with a screw hole (not shown) through which a screw is inserted. The fixing portion 124b is screwed in a state of overlapping the front side of the upper end side support member 21 (see fig. 6).

The installation portion 125b shown in fig. 10 is a portion extending laterally inward (right side in fig. 10) from the upper end of the planar portion 121 b. When the cross plate 12b is installed in the heat insulation box 13 (see fig. 8), the installation portion 125b is screwed together with the upper plate 12a (see fig. 7) in a state of being overlapped with the upper side of the upper end side support member 21 (see fig. 6). The right side cross plate 12c (see fig. 8) is substantially bilaterally symmetrical to the left side cross plate 12 b. The heat transfer tube 35 shown in fig. 10 will be described later.

The description is continued again with reference to fig. 9. When the cross plate 12b is provided in the heat insulation box 13, the cross plate 12b is engaged with the engagement groove 11v of the flange 11d by the claw portion 126b (see also fig. 10). Accordingly, since most of the flange 11d of the inner box 11 is shielded by the outer panel 12, in addition to the cross plate 12b being properly positioned, the design of the refrigerator 100 can be improved.

In addition, in a state where the locking portion 122b of the cross plate 12b (outer plate) is locked to the locking groove 11v (groove), the vertical support member 23 (frame) is interposed between the cross plate 12b and the flange 11 d. By providing the vertical support member 23 outside the heat insulating box 13 in this manner, it is possible to suppress cold air inside the warehouse from hitting the vertical support member 23, and further, it is possible to suppress dew condensation on the vertical support member 23 and the locking portion 122b of the cross plate 12 b. Further, since the vertical support member 23 is shielded by the cross plate 12b, the design of the refrigerator 100 can be improved.

Fig. 11 is a partial enlarged view of a region K8 in fig. 8.

The rear plate 12d shown in fig. 11 is a steel plate forming the rear surface of the case 1 (see fig. 1), and extends laterally inward from the vicinity of the rear end of the cross plate 12 b. The rear vertical support member 24 (see also fig. 6) has an L-shape in a cross-sectional view and extends vertically long and thin. In the vertical support member 24, a portion parallel to the front-rear direction (a front inner surface) is in contact with a side surface of the heat insulation box 13. Further, in the vertical support member 24, a portion parallel to the left-right direction (inner surface of the right portion) is in contact with the rear surface of the heat insulation box 13.

As described above, the cross plate 12b includes the overlapping portion 123b (see also fig. 10). The overlapping portion 123b extends laterally inward (rightward in fig. 11) from the vicinity of the rear end of the cross plate 12 b. As shown in fig. 11, in a state where the cross plate 12b is provided, the vicinity of the edge of the rear plate 12d overlaps the outside of the overlapping portion 123 b. The screw 71 is inserted from the outside through the overlapping portion 123b of the rear plate 12d and the cross plate 12b and the rear vertical support member 24 in this order. Thereby, the rear end side of the cross plate 12b and the rear plate 12d are fixed to the vertical support member 24 (the frame 20). The vicinity of the rear end of the upper plate 12a (see fig. 7) may be bent downward and fixed together with the upper plate 12a by the screws 71. By having the frame 20, the screw 71 can be firmly attached.

The outer panel may be formed in a C-shape in plan view, in which the left side cross plate 12b, the rear plate 12d, and the right side cross plate 12C are integrally formed. In this way, the screws 71 can be omitted, but the assembly is easier if the outer panel is formed of a plurality of outer panels (the cross panel 12b, the rear panel 12d, and the cross panel 12 c) as in the present embodiment. That is, first, one end side of each of the left and right cross plates 12b, 12d is engaged with the engagement portion 122b (see fig. 9). The cross plates 12b, 12d are rotatably moved in a plan view about the locking portion 122b so as to be close to the overlapping portion 123b. At the overlapping portion 123b, it is fixed to the rear plate 12d with a screw 71.

As described above, a part of the rear plate 12d (outer plate) provided on the rear surface side of the heat insulating box 13 and the overlapping portion 123b are fixed in a state of overlapping, and the vertical support member 24 (frame) is also fixed together with the rear plate 12d and the overlapping portion 123b. Fig. 11 shows the upper left portion of the back side of the refrigerator 100, but the lower left portion of the back side of the refrigerator 100 is fixed in the same manner. The upper right and lower right portions of the back surface side of the refrigerator 100 are also fixed in the same manner. In short, four corners of the rectangular rear plate 12d are fixed with screws. Since the plurality of outer plates 12 (see fig. 1) including the rear plate 12d are fixed to a portion (the rear surface side in fig. 11) different from the vicinity of the edge of the opening 11a (see fig. 3A) of the inner case 11, the exterior design of the refrigerator 100 is improved.

Fig. 12 is a perspective view showing a state in which the rack 20 is provided in the inner box assembly 6 of the refrigerator.

Fig. 12 is different from fig. 8 and 9 in that the inner box assembly 6 is not provided with the outer panel 12. As shown in fig. 12, a frame 20 is provided outside the heat insulating box 13. That is, in addition to the vertical support members 23, 24, an upper end side support member 21, an upper end side connection member 22 (see fig. 6), a lower end side support member 25, a lower end side connection member 26, and the like are provided as the frame 20 on the outside of the inner box assembly 6.

After the housing 20 is provided in the inner box assembly 6 as described above, the outer panel 12 is further provided in the inner box assembly 6. Then, a base member 90 (see fig. 2) provided with the compressor 31 and the like (see fig. 2) is assembled to the inner case assembly 6. Machine chamber support members 28 and 29 (see fig. 7) are provided with a bottom plate 27 (see fig. 6) having an L-shape when viewed in cross section from the back side.

Fig. 13 is a partial enlarged view of a region K9 in fig. 12.

As shown in fig. 13, the front vertical support member 23 includes an extending portion 23b and a curved portion 23c in addition to an L-shaped portion 23a which is L-shaped in a cross-sectional view and extends in a longitudinal direction to be slender. The extension 23b extends upward from a portion parallel to the left-right direction in the L-shaped portion 23a, and is fixed to the front end of the upper end side support member 21 (see also fig. 6). Screw holes (not shown) through which screws 72 are inserted are provided in the extension 23 b.

The bent portion 23c is a portion bent laterally inward (rightward in fig. 13) from a portion parallel to the front-rear direction in the L-shaped portion 23 a. A screw hole (not shown) through which the screw 73 is inserted is provided in the bent portion 23 c. That is, the vicinity of the upper end of the vertical support member 23 is divided into two strands, one of which extends upward as an extension portion 23b and the other of which extends laterally inward as a bent portion 23 c.

The screw 72 is inserted in the front-rear direction in a state where the extension portion 23b overlaps the front end of the upper end side support member 21, and further, where the fixing portion 124b (see fig. 10) of the cross plate 12b (see fig. 10) overlaps the front side (outer side) thereof. Thereby, the upper end side support member 21 and the cross plate 12b are firmly fixed via the vertical support member 23. The vicinity of the front end of the upper plate 12a (see fig. 7) may be formed to be bent downward, and may be fixed together with the upper plate 12a by using screws 72.

The upper end of the extension 23b is higher than the upper surface of the heat insulation box 13. The same applies to the other vertical support members 24. That is, the height position of the upper end of each of the plurality of vertical support members 23, 24 is higher than the height position of the upper surface of the heat insulation box 13. Thus, for example, when a plurality of refrigerators 100 are stacked, the mass load of the other upper refrigerator can be directly applied to the vertical support members 23 and 24. These vertical support members 23, 24 have high rigidity against a load from above, and therefore can be firmly supported even when a plurality of refrigerators 100 are stacked.

In addition, in a state where the bent portion 23c of the vertical support member 23 is overlapped with the upper surface of the upper end side connecting member 22 (not shown in fig. 12, refer to fig. 6), the screw 73 is inserted in the up-down direction. Thereby, the vertical support member 23 is fixed to the upper end side connecting member 22.

Fig. 14 is an explanatory view showing a region where the aluminum tape 81 is attached to the left side cross plate 12b and the heat transfer tube 35.

As described above, the heat transfer pipe 35 is provided inside the left cross plate 12b (see also fig. 10). That is, the heat transfer pipe 35 (hot air pipe) is disposed inside the side surface of the outer panel 12 (see fig. 8). The heat transfer pipe 35 is a "hot gas pipe" through which a medium-temperature high-pressure refrigerant compressed by the compressor 31 (see fig. 2) and condensed by a radiator (not shown) flows. The heat transfer pipe 35 is disposed so as to pass near the edge of the cross plate 12b, and contacts the inner surface of the cross plate 12b (outer plate). In the example of fig. 14, the heat transfer pipe 35 is disposed so as to pass through the vicinity of the front end and the upper end of the cross plate 12 b. By providing the heat transfer pipe 35 inside the cross plate 12b in this manner, the metal cross plate 12b can be prevented from being cooled by the cold air inside the warehouse, and the occurrence of condensation can be prevented.

As shown by the dot area in fig. 14, the heat transfer pipe 35 (hot air pipe) is fixed inside the cross plate 12b by an aluminum tape 81 (1 st aluminum tape). The aluminum tape 81 is a tape having high heat conductivity for bringing the heat transfer pipe 35 into contact with the cross plate 12b (outer plate). The aluminum tape 81 also has a function of ensuring a heat transfer area when heat is transferred from the heat transfer tube 35 to the cross plate 12 b. The thickness of the aluminum tape 81 is, for example, 100[ mu ] m or more, but is not limited thereto. Further, the positional relationship between the heat insulating box 13 (see fig. 12) and the heat transfer pipe 35 will be described, and the heat transfer pipe 35 (heat pipe) is provided outside the heat insulating box 13 (heat insulator).

In the example of fig. 14, the heat transfer pipe 35 is disposed so as to pass through a square frame-shaped region (region to which the aluminum tape 81 is attached) near the front end and the upper end of the cross plate 12b, and is further fixed by the aluminum tape 81. Thereby, the heat of the refrigerant flowing through the heat transfer tube 35 is easily transferred to the entire area of the cross plate 12 b. Further, the heat transfer pipe 35 is provided near the upper end of the cross plate 12b, so that heat transfer from the cross plate 12b to the upper plate 12a (see fig. 7) can be promoted. The right side cross plate 12c (see fig. 8) and the rear plate 12d (see fig. 8) are also provided with heat transfer pipes and aluminum strips as appropriate.

Fig. 15 is a plan view of the inner box assembly 6 included in the refrigerator.

In fig. 15, a dot region is shown as a region to which an aluminum tape 82 (the 2 nd aluminum tape) is attached to the upper surface of the heat insulation box 13. As shown in fig. 15, grooves 88a, 88b, 88c, 88d for winding wires are provided on the upper surface of the heat insulation box 13. For example, wiring (not shown) connected to the in-house lamp 83 is disposed in the groove 88a. Further, a wiring (not shown) connected to the substrate 84 on which the buzzer or the in-house temperature sensor is mounted is disposed in the other groove 88b. These slots 88a, 88b are connected to a slot 88c. The groove 88c may be provided on the rear surface in addition to the upper surface of the heat insulating box 13. Wiring (not shown) connected to the gate sensor 89 is disposed in the groove 88d. In the example of fig. 15, the wiring (not shown) disposed in the groove 88d is guided to the other groove 88c sequentially through the installation site of the door sensor 83 and the groove 88a. The wirings are connected to a control board (not shown) of the machine chamber 41 (see fig. 2) via grooves 88c and the like. The arrangement of the grooves can be changed as appropriate.

As described above, wirings connected to the in-house lamps 83 (electric components), the substrate 84 (electric components), and the door sensor 89 (electric components) near the upper surface of the heat-insulating box 13 are provided in the grooves 88a, 88b, 88c, 88d. Accordingly, the wiring can be exposed only by the operator sequentially removing the top plate 14 (see fig. 1) and the upper plate 12a (see fig. 7), and maintenance work is facilitated.

As shown by the dot area in fig. 15, an aluminum tape 82 (aluminum tape 2) is attached to the upper surface of the heat insulation box 13, preferably over substantially the entire area. The aluminum tape 82 is a high-heat-conductivity adhesive tape for transmitting heat of the heat transfer tube 35 (see fig. 14) provided inside the cross plate 12b to the upper side of the heat-insulating box 13. The thickness of the aluminum tape 82 is, for example, 100 μm or more, but is not limited thereto. By providing the aluminum tape 82 in this manner, the upper plate 12a (see fig. 7) provided on the upper side of the heat insulation box 13 can be prevented from being cooled by the cold air inside the storage, and the occurrence of condensation can be further prevented. In the example of fig. 15, the aluminum tape 82 is attached so as to avoid electrical components such as the in-house lamp 83 and the substrate 84. This can suppress an excessive temperature rise of the electrical component, and further suppress a failure of the electrical component.

Further, the aluminum tape 82 attached to the upper surface of the heat insulation box 13 may be extended to the left and right sides, and attached so that the aluminum tape 82 reaches the upper side of the side surface of the heat insulation box 13. In this case, the aluminum strip 82 on the side surface of the heat insulating box 13 and the aluminum strip 81 (see fig. 14) of the left cross plate 12b may partially overlap in the lateral direction. Thus, the heat of the heat transfer tube 35 provided in the cross plate 12b is easily transferred to the upper plate 12a via the aluminum tape 82 (see fig. 7).

Further, instead of the upper surface of the heat insulating box 13, an aluminum tape 82 may be attached to the rear surface (lower surface) of the upper plate 12a (see fig. 7). In addition, for example, an aluminum tape 82 may be attached to the upper surface of the heat insulation box 13 and the back surface of the upper plate 12a (see fig. 7). In short, the aluminum tape 82 (aluminum tape 2) may be provided between the upper plate 12a (upper outer plate) and the upper surface of the heat insulation box 13. The same effect can be achieved by such a structure.

Fig. 16 is a longitudinal sectional view of the refrigerator including the control panel 85.

As shown in fig. 16, the refrigerator 100 includes a control panel 85. The control panel 85 is provided inside the refrigerator 100 in response to a predetermined operation by a user or the like. In the example of fig. 16, the control panel 85 is provided on the deep side of the inner box 11. Drawing of the figure 16 is shown in a longitudinal section for fixing the control panel 85The character-shaped member is provided in the inner case 11.

Fig. 17 is a partial enlarged view of the region K10 in fig. 16.

As shown in FIG. 17, by closing in longitudinal sectionThe control panel 85 is fitted into an opening of the fixing member 86 to form a space 87 shown in fig. 17. The space 87 is a space for routing wiring (not shown) connected to the control panel 85 and the like. The fixing member 86 has a hole 86a for inserting a wire in the front-rear direction in a wall on the deep side where the fixing member contacts the inner case 11.

Further, an insertion hole 13k communicating with the hole 86a of the fixing member 86 is provided in the front-rear direction in a wall (heat insulator block 134: see fig. 5) on the deep side of the heat insulator box 13. The insertion hole 13k is a hole through which a wiring connected to the control panel 85 is inserted. A groove (not shown) for guiding the wiring to a control board (not shown) of the machine chamber 41 (see fig. 2) is provided on the back surface side of the heat insulating box 13 in the up-down direction. The wiring connected to the control panel 85 is guided to a control board (not shown) of the machine chamber 41 (see fig. 2) through the hole 86a of the fixing member 86, the insertion hole 13k of the heat insulation box 13, and a groove (not shown) on the back surface side of the heat insulation box 13 in this order. After the wiring is inserted through the insertion hole 13k, the insertion hole 13k may be closed with a heat insulating sheet (not shown). This can suppress the decrease in heat insulating performance and the occurrence of dew condensation. The wiring extending from the substrate 84 (see fig. 15) and the in-house lamp 83 (see fig. 15) extends to the connection destination such as the machine room 41 through the region outside the heat insulator, for example, between the heat insulator and the outer panel. The wiring is passed through only the region outside the heat insulator, so that the concern of condensation due to cooling by the cold air in the warehouse can be reduced.

Fig. 18A is a perspective view of a state in which the heat transfer pipe is not provided in the bottom plate 27.

As described above, the bottom plate 27 shown in fig. 18A is crank-shaped in a side view. That is, the bottom plate 27 includes: a 1 st horizontal portion 27a having a substantially horizontal surface direction; a vertical portion 27b extending downward from the front end of the 1 st horizontal portion 27a; and a 2 nd horizontal portion 27c extending forward from the lower end of the vertical portion 27 b. Further, the bottom plate 27 is provided with a setting portion 271 for setting the heat transfer pipe 37 (heat pipe: refer to FIG. 18B). The setting portion 271 is formed by tilting a part of the bottom plate 27, for example. Further, as long as the position of the heat transfer pipe 37 (see fig. 18B) can be fixed, a mounting portion (not shown) of another member may be provided on the bottom plate 27.

In the example of fig. 18A, a plurality of linear arrangement portions 271 are provided in the 2 nd horizontal portion 27c along the extending direction of the heat transfer tube 37 (see fig. 18B). The heat transfer pipe 37 (see fig. 18B) is fixed to the inner side (upper side) of the 2 nd horizontal portion 27c by these setting portions 271. By providing the installation portion 271 on the bottom plate 27 in this manner, the heat transfer pipe 37 (see fig. 18B) is less likely to be visually recognized by the user, and thus the design of the refrigerator 100 (see fig. 1) is improved.

Fig. 18B is a perspective view of the state in which the heat transfer pipe 37 is provided in the bottom plate 27.

In the example of fig. 18B, the heat transfer pipe 37 is provided so as to meander inside (upper side) the 2 nd horizontal portion 27c of the bottom plate 27. The medium-temperature high-pressure refrigerant compressed by the compressor 31 (see fig. 2) and radiated by the radiator (not shown) flows through the heat transfer tube 37. The heat transfer pipe 37 fixed to the mounting portion 271 is in contact with the bottom plate 27, whereby heat of the heat transfer pipe 37 is transferred to the bottom plate 27. This increases the temperature of the bottom plate 27, and thus can suppress dew condensation on the bottom plate 27.

Fig. 19A is a perspective view of a state in which the heat transfer pipe is not provided in the rear plate 12d.

As described above, the rear plate 12d shown in fig. 19A is a steel plate that forms the rear surface of the refrigerator 100 (see fig. 1), and is rectangular when viewed from the front. The rear plate 12d is provided with a mounting portion 121d for mounting the heat transfer pipe 38 (heat pipe: see fig. 19B). The mounting portion 121d is formed by tilting a part of the rear plate 12d, for example. Further, as long as the position of the heat transfer pipe 38 (see fig. 19B) can be fixed, a mounting portion (not shown) of another member may be provided to the rear plate 12d.

In the example of fig. 19A, a plurality of linear installation portions 121d are provided on the rear plate 12d along the extending direction of the heat transfer tube 38 (see fig. 19B). By providing the installation portion 121d on the rear plate 12d in this manner, the heat transfer tube 38 (see fig. 19B) is less likely to be visually recognized by the user, and thus the design of the refrigerator 100 (see fig. 1) is improved.

Fig. 19B is a perspective view of the rear plate 12d in a state where the heat transfer tubes 38 are provided.

In the example of fig. 19B, the heat transfer pipe 38 is provided so as to meander in an M-shape on the inner side (front side) of the rear plate 12d. That is, the heat transfer pipe 38 (hot air pipe) is disposed inside the back surface of the outer panel 12 (see fig. 8). The medium-temperature high-pressure refrigerant compressed by the compressor 31 (see fig. 2) and radiated by the radiator (not shown) flows through the heat transfer tube 38. By the heat transfer tube 38 fixed to the setting portion 121d being in contact with the rear plate 12d, the heat of the heat transfer tube 38 is transferred to the rear plate 12d. This increases the temperature of the rear plate 12d, and thus can suppress condensation on the rear plate 12d.

In the present embodiment, the heat transfer pipe 37 (see fig. 18B) is provided in the installation portion 271 (see fig. 18B) of the bottom plate 27, and the heat transfer pipe 38 (see fig. 19B) is provided in the installation portion 121d (see fig. 19B) of the rear plate 12d. For example, the "setting portion" may be provided in either the bottom plate 27 or the rear plate 12d. That is, a "setting portion" for setting the heat transfer pipe may be provided at the bottom plate 27 and/or the rear plate 12d. In addition to the 2 nd horizontal portion 27c (see fig. 18A) of the bottom plate 27, for example, a "mounting portion" of the heat transfer pipe may be appropriately mounted in the 1 st horizontal portion 27a (see fig. 18A) and the vertical portion 27b (see fig. 18A).

According to the present embodiment, a molded heat insulator or a vacuum heat insulator can be used as the heat insulator blocks 131 to 136 (see fig. 5) constituting the heat insulating box 13 (see fig. 5). This can reduce manufacturing costs and equipment costs, as compared with, for example, a case where liquid foamed polyurethane is injected into a gap between the inner case 11 and the outer panel 12.

Further, according to the present embodiment, the vicinity of the edge portion of the joint that is the heat insulator blocks 131 to 136 (see fig. 5) has a curved shape. That is, since the seams are not provided on the edges and corners of the rectangular parallelepiped heat-insulating box 13, for example, the operation of attaching the adhesive tape to the seams is easy. Further, by not providing a seam on the upper surface of the heat insulating box 13, a minute gap in which moisture or the like enters from the upper side can be suppressed. Further, since the joints of the heat insulator blocks 131 to 136 (see fig. 5) are in the form of fold lines, it is possible to ensure frictional force between the heat insulator blocks, and it is possible to suppress entry of moisture or the like into the gap between the heat insulating box 13 and the inner box 11.

The refrigerator 100 includes a metal rack 20 (see fig. 6). Thus, even in the case where, for example, a plurality of refrigerators 100 are stacked in the up-down direction, a mass load from above can be firmly supported by the rack 20. In addition, when the refrigerator 100 is assembled, the exterior panel 12 covers the frame 20, and the exterior panel 12 and the frame 20 are fixed mainly to the rear surface side, so that the exterior design of the refrigerator 100 is improved.

In addition, according to the present embodiment, the heat transfer pipe 35 (heat pipe: see FIG. 14) is provided inside the left and right cross plates 12b, 12c and the rear plate 12 d. Further, in addition to fixing the heat transfer pipe 35 with an aluminum tape 81 (see fig. 14), an aluminum tape 82 (see fig. 15) is attached to the upper surface of the heat insulation box 13. This can suppress dew condensation from occurring in the metal outer plate 12. The aluminum strips 82 (see fig. 15) on the upper surface of the heat insulating box 13 can be disposed so as to reach the heat transfer tubes 35 of the left and right cross plates 12b, 12c and the rear plate 12d, respectively.

Modification of the invention

While the refrigerator 100 of the present disclosure has been described above with reference to the embodiments, the present disclosure is not limited to these descriptions, and various modifications are possible. For example, the plurality of legs 3 (see fig. 1) provided in the casing 1 (see fig. 1) of the refrigerator 100 may be arranged as follows.

Fig. 20 is a bottom view of a refrigerator 100A according to a modification.

For example, among the plurality of legs 3 (see fig. 1), one of the pair of legs 3 on the front side may be provided in the 1 st projection surface 76 when the door 2 is projected downward, and the other of the pair of legs 3 on the front side may be provided in the 2 nd projection surface 77 when the housing 1 is projected downward. That is, in the female screw portion (not shown) on the front side to which the leg 3 (see fig. 1) is screwed, one female screw portion may be provided in the 1 st projection surface 76 of the door 2, and the other female screw portion may be provided in the 2 nd projection surface 77 of the housing 1. According to such a configuration, by providing one female screw portion (not shown) directly below the door 2, a distance in the front-rear direction between the leg 3 screwed to the female screw portion and the convex portion 90a of the base member 90 (see fig. 2) can be ensured. Thus, even when a moment is applied by a force that pushes down the refrigerator 100 toward the front or rear, the refrigerator 100 is less likely to fall over. The female screw portion (not shown) in the 1 st projection surface 76 may be provided directly below the axis of the hinge 75 of the door 2.

In the embodiment, the structure in which the vicinity of the edge portion of the joint that is the heat insulator blocks 131 to 136 (see fig. 5) is bent is described, but the present invention is not limited thereto. For example, a shape in which the vicinity of the edge portion of the joint that becomes the heat insulator blocks 131 to 136 (see fig. 5) is bent at a right angle is also included in the "bent shape".

In the embodiment, the case where the heat insulation box 13 includes 6 heat insulator blocks 131 to 136 (see fig. 5) has been described, but the number and shape of the heat insulator blocks may be appropriately changed.

In the embodiment, the heat insulating box 13 is formed by assembling the heat insulator blocks 131 to 136 (see fig. 5), but the present invention is not limited thereto. For example, the heat-insulating box 13 having a front-side opening shape may be integrally formed.

In the embodiment, the case where the adhesive tape is attached to the joint of the heat insulator blocks 131 to 136 (see fig. 5) from the inside has been described, but the present invention is not limited thereto. For example, adhesive tapes may be attached to the joints of the heat insulator blocks 131 to 136 from the outside. Alternatively, the heat insulator blocks 131 to 136 may be bonded with an adhesive instead of the adhesive tape.

In the embodiment, the case where the joint of the heat insulator blocks 131 to 136 (see fig. 5) is a broken line has been described, but the present invention is not limited thereto. For example, the heat insulator blocks 131 to 136 may include a material block having a curved joint with another heat insulator block. In the heat insulator blocks 131 to 136, the material blocks having the linear joints and the folded-back joints may coexist, or the material blocks having the linear joints may coexist. Such a structure can also provide the same effects as those of the embodiment.

In the embodiment, the structure in which the front vertical support member 23 (see fig. 9) is positioned by both the flange 11d of the inner box 11 and the heat insulation box 13 has been described, but the present invention is not limited thereto. That is, the front vertical support member 23 (see fig. 9) may be positioned by the flange 11d of the inner box 11 or may be positioned by the heat insulation box 13. That is, the front vertical support member 23 can be positioned by the flange 11d of the inner box 11 and/or the heat insulating box 13.

In the embodiment, the configuration in which the refrigerator 100 includes the rack 20 (see fig. 5) has been described, and the rack 20 may be omitted as appropriate. In such a configuration, the cross plates 12b and 12c may be positioned by the flange 11d of the inner case 11 and the heat insulation case 13, and further fixed to the rear surface side in a state of overlapping with a part of the rear plate 12 d. For example, when the refrigerator 100 is used alone, the rack 20 can be used as a firm fixing base such as the screw 71. Therefore, the components of the frame 20 can be provided where the fixing members such as the screws 71 are required. On the other hand, when the refrigerator 100 is stacked up and down, the refrigerator can be used as a base for supporting the upper refrigerator 100. Accordingly, four vertical support members 23, 24 (see fig. 6) and a plurality of connecting members 21, 22, 25, 26 (see fig. 6) for connecting these members to each other can be provided.

In the embodiment, the case where the casing 1 (see fig. 1) of the refrigerator 100 is rectangular parallelepiped is described, but the present invention is not limited thereto. For example, the embodiments can be applied to a refrigerator having a case (not shown) of a polyhedral shape other than a rectangular parallelepiped or a case (not shown) including a curved surface.

In the embodiment, the refrigerator 100 has been described as including the cooling unit 50 (see fig. 2), but the cooling unit 50 may be omitted or the refrigerator may be a so-called peltier type refrigerator. The cooling unit 50 and the components related to the peltier effect may be disposed outside the inner box 11. In this way, the user can easily replace the inner case 11.

In the embodiment, the refrigerator 100 including the single-open door 2 (see fig. 1) is described, but the embodiment is applicable to other types of refrigerators such as a double-open refrigerator, a portable refrigerator, and a chest freezer. The embodiments can be applied to various kinds of "storages" other than refrigerators. For example, the embodiment can be applied to a predetermined storage without a particular cooler.

The embodiments are described in detail for the purpose of describing the present invention in an easy-to-understand manner, and are not limited to include all the configurations described. In addition, some of the structures of the embodiment may be added, deleted, or replaced with other structures.

The above-described mechanism and structure are considered to be necessary in terms of description, and not necessarily all the mechanism and structure are shown as a product.

Description of the reference numerals

1 casing body

2-door

3 leg

4 storeroom

11 inner box

11a opening

11b shelf rib

11d flange

11h through hole

11v locking groove (groove)

11z through hole

12. Outer plate

12a upper plate

12b, 12c cross plate

122b locking part

123b overlap portion

12d back plate

121d setting part

13. Heat insulation box

13a opening

13h through hole

13k insertion hole

13z through hole

13p, 13q, 13r, 13s, 13u, 13v seams

131. 132, 133, 134, 135, 136 insulation block (insulation)

132g, 133g, 134g, 135g, 136g edge portions

20 rack

21 upper end side support member (connecting member)

22 upper end side connecting part

23 longitudinal support member (front longitudinal support member)

24 vertical support member (rear vertical support member)

25 lower end side supporting part (connecting part)

27. Bottom plate

271. Setting part

31. Compressor with a compressor body having a rotor with a rotor shaft

32. Dew receiving plate

32a funnel part

33. Discharge pipe

35. 37, 38 heat transfer tube (Hot air pipe)

41. Mechanical room

50. Cooling unit

51. Cooling device

76 st projection plane 1

77 projection plane 2

81 aluminium belt (aluminium belt 1 st)

82 aluminium belt (aluminium belt 2 nd)

83 warehouse lamp (electric component)

84 substrate (electric component)

85 control panel

88a, 88b, 88c, 88d grooves

89 door sensor (electric parts)

100. 100A refrigerator (storage).

Claims (24)

1. A storage compartment, comprising:

an inner box with an opening at the front side;

a heat insulating member constituted by a shaped heat insulating member or a vacuum heat insulating member; and

the machine frame is provided with a machine frame,

the heat insulating member is disposed outside the inner case,

the frame is arranged outside the heat insulating piece.

2. The storage of claim 1, wherein:

the frame has a plurality of vertical supporting members extending in the up-down direction and a connecting member extending in the front-back direction,

the plurality of vertical support members include a front vertical support member and a rear vertical support member,

the front side vertical support member and the rear side vertical support member are connected via the connecting member.

3. The storage of claim 1, wherein:

Comprises a heat-insulating box body which is formed by forming the heat-insulating material into a box shape or is formed by assembling a plurality of heat-insulating material blocks serving as the heat-insulating material,

the front side of the heat insulation box body is opened,

the inner box is embedded in the opening of the heat insulation box body.

4. A store according to claim 3, wherein:

the inner box can be detached from the heat insulation box body and replaced with another inner box having a different internal structure.

5. The storage of claim 1, wherein:

also comprises a transverse plate, wherein the transverse plate is provided with a plurality of grooves,

the inner case has a flange protruding outward from the edge of the opening,

the cross plate is provided with a locking part which is locked with the groove of the flange,

the frame is interposed between the cross plate and the flange in a state where the locking portion of the cross plate is locked with the groove.

6. The storage of claim 1, wherein:

comprises a heat-insulating box body which is formed by forming the heat-insulating material into a box shape or is formed by assembling a plurality of heat-insulating material blocks serving as the heat-insulating material,

the front side of the heat insulation box body is opened,

the inner case has a flange protruding outward from the edge of the opening,

The frame has a plurality of longitudinal support members extending in the up-down direction,

the longitudinal support member on the front side among the plurality of longitudinal support members is positioned by the flange and/or the heat insulation box.

7. The storage of claim 6, comprising:

a cross plate disposed laterally outward of the heat insulation box; and

a rear plate extending from the vicinity of the rear end of the cross plate to the lateral inner side,

the rear end side of the cross plate and the rear plate are fixed to the frame.

8. The storage of claim 1, wherein:

comprises a heat-insulating box body which is formed by forming the heat-insulating material into a box shape or is formed by assembling a plurality of heat-insulating material blocks serving as the heat-insulating material,

the front side of the heat insulation box body is opened,

the frame includes a plurality of longitudinal support members extending in an up-down direction,

the upper ends of the plurality of vertical support members are positioned higher than the upper surface of the heat insulation box.

9. A store according to claim 3, wherein:

comprises a cushioning material disposed on at least a portion of opposite sides of the insulated box and the inner box.

10. The storage of claim 1, wherein:

Comprising a plurality of legs for supporting a housing having the inner box and the insulation, and

comprising a door closing the opening of the inner box,

one of the front pair of legs is disposed in a 1 st projection plane when the door is projected downward, and the other of the front pair of legs is disposed in a 2 nd projection plane when the housing is projected downward.

11. The storage of claim 1, comprising:

a heat insulation box body configured by forming the heat insulator into a box shape or by assembling a plurality of heat insulator blocks as the heat insulator;

a bottom plate that separates a machine chamber for providing a compression chamber; and

a rear plate disposed on the rear side of the heat-insulating box,

the bottom plate and/or the rear plate is provided with a setting portion for setting the heat transfer pipe.

12. The storage of claim 1, comprising:

a heat insulation box body configured by forming the heat insulator into a box shape or by assembling a plurality of heat insulator blocks as the heat insulator;

an outer plate disposed outside the heat insulation box;

a hot air pipe disposed inside a side surface of the outer panel and inside a back surface of the outer panel, respectively; and

And the aluminum belt is arranged on the upper surface of the heat insulation box body.

13. The storage of claim 1, wherein:

as the heat insulator, a plurality of heat insulator blocks are included,

the plurality of heat insulating block bodies are assembled into a box shape with an opening at the front side to form a heat insulating box body,

the plurality of heat insulator blocks include heat insulator blocks having a curved shape in the vicinity of edges which form joints with other heat insulator blocks.

14. The storage of claim 13, wherein:

the plurality of heat insulator blocks include heat insulator blocks in which the joint is a broken line or a curved line when viewed in cross section.

15. The storage of claim 13, wherein:

the seam is not formed on the upper surface of the insulated box.

16. The storage of claim 13, wherein:

the seam is not formed at a corner of the insulated box.

17. The reservoir of any one of claims 13 to 16, comprising:

an inner box with an opening at the front side; and

a door closing the opening of the inner case,

the inner box is embedded in the opening of the heat insulation box body,

In a state where the door is closed, a shape of a storage chamber formed by an inner wall surface of the door and an inner wall surface of the inner case is different from a rectangular parallelepiped.

18. The storage of claim 17, wherein:

comprising an adhesive tape attached to the seam from the inside, and

including set up in the hot air pipe of the outside of heat-insulating box.

19. The storage of claim 17, wherein:

the inner case has a shelf rib for providing a shelf,

the heat insulation box does not have a protrusion corresponding to the shelf rib,

the heat insulation box may be replaced with another inner box having a different position or shape of the shelf rib.

20. The reservoir of claim 17, comprising:

an outer plate provided outside the heat insulation box; and

a hot air pipe arranged outside the heat insulation box body,

the hot air pipe is in contact with the inner side surface of the outer plate.

21. The reservoir of claim 20, wherein:

comprises a 1 st aluminum strip attached to the hot air pipe in a manner that the hot air pipe is contacted with the outer plate on the lateral side.

22. The storage of claim 21, wherein:

And the aluminum strip 2 is arranged between the outer plate at the upper side and the upper surface of the heat insulation box body.

23. The storage of claim 17, wherein:

a groove is arranged on the upper surface of the heat insulation box body,

the groove may be provided with wiring for connecting to an electrical component near the upper surface of the heat insulation box.

24. The storage of claim 17, wherein:

comprising a control panel arranged on the inner side of the storage room,

the heat insulation box is provided with a wiring insertion hole connected to the control panel.