JP7065636B2 - Cool storage - Google Patents

Description

The present invention relates to a storage.

As a conventional cooling storage, for example, the one described in Patent Document 1 is known. The cooling storage described in Patent Document 1 includes a storage chamber of a heat-insulating box body having an open front surface and a cooler chamber provided on the side of the storage chamber. The cooler room has a cooler for cooling the storage room, a cooling fan provided on the side of the cooler to circulate the cool air cooled by the cooler into the refrigerator, and a cooling fan provided below the cooler for cooling. It is equipped with a heater that removes frost adhering to the vessel.

Japanese Unexamined Patent Publication No. 2009-9261

The frost attached to the cooling fan is melted by the radiant heat of the heater, but since part of the heat escapes to the outside of the cooler chamber, there is a problem that it takes time to melt the frost attached to the cooling fan. rice field.

The present invention has been made in view of the above circumstances, and one of the objects of the present invention is to provide a cooling storage that improves the melting efficiency of frost adhering to a cooling fan.

In order to solve the above problems, the cooling storage of the present invention includes a box-shaped storage body, a cooler for cooling the inside air of the storage body, a fan for circulating the inside air in the storage body, and the cooler. The mounting portion comprises a heater that melts the frost adhering to the frost and a mounting portion to which the heater is mounted, the mounting portion includes a cavity having at least two openings, and the cooler is provided on one opening side of the cavity. The fan is provided on the other opening side of the cavity, and the heater is mounted in the cavity.

Since the fan is provided on the other opening side of the cavity provided in the mounting portion and the heater is mounted in the cavity of the mounting portion, the fan is heated by the heat of the heater. This makes it possible to defrost the frost adhering to the fan. Further, since the cooler is provided on one opening side of the mounting portion and the fan is provided on the other opening side, the heat of the heater is efficiently transferred from the cavity to both openings, and both openings in the cavity are provided. Frost adhering to the cooler and fan arranged on the side can be efficiently defrosted.

Further, a cooler chamber for accommodating the cooler is provided, and the mounting portion has a plate shape, and has a plate shape and a plate shape with the first plate portion provided with the first opening opened. It is provided with a second plate portion which is arranged to face the plate portion 1 and is provided with a second opening open, and between the first plate portion and the second plate portion. The space is closed by the inner wall of the cooler chamber, and the closed space may be the hollow portion.

The space between the first plate portion and the second plate portion is used as a cavity portion, and the gap between the first plate portion and the second plate portion is closed by the inner wall of the cooler chamber, so that the inside of the cavity portion is formed. It is possible to prevent the heat of the heater from escaping from the gap between the first plate portion and the second plate portion.

Further, the cooler is provided on the first opening side, the fan is provided on the second opening side, and the heater is arranged below the second opening. A plate-shaped partition plate that protrudes from the second plate portion toward the cooler and is inclined downward may be provided between the second opening and the heater. ..

Since the cooler is provided on the first opening side and the fan is provided on the second opening side, heat tends to stay in the cavity. Further, since the partition plate is inclined downward, the frost that has fallen from the fan onto the partition plate is guided to the cooler side. This allows the frost to melt in a cooler heated by a heater. Further, by providing the partition plate, the heat of the heater is suppressed from flowing above the partition plate, and easily accumulates below the partition plate, so that the lower part of the cooler can be heated preferentially.

Further, a gap is provided between the end portion of the partition plate and the cooler, and below the heater, the second plate portion projects toward the cooler, and the upper surface thereof is downward. There may be a configuration in which a protruding portion is provided so as to be inclined.

By providing a gap between the end of the partition plate and the cooler, the frost that has fallen on the partition plate falls from the gap and falls on the protrusion, and the inclination of the upper surface of the protrusion causes the frost to move toward the cooler. Be guided. At this time, the frost that has fallen on the protruding portion is directly irradiated to the heater arranged on the upper portion of the protruding portion, so that the melting efficiency of the frost can be improved.

According to the present invention, it is possible to provide a cooling storage capable of efficiently melting the frost adhering to the cooling fan.

Front view of the cooling storage according to the embodiment of the present invention A view of the front side of the cooling storage cut off and viewed diagonally from the front. Cross-sectional view of the cooler room in front view FIG. 3 shows a state in which the duct is removed. A view of the cooler without the bracket attached from the right side Cutting view around the cooler with the bracket not attached Perspective view of cooling unit and cooler Perspective view of the bracket Perspective view of the bracket Front view bracket view Perspective view of the cooler room Perspective view of the cooler chamber with the bracket attached Perspective view of the cooler chamber with the bracket attached

The cooling storage 10 of the present embodiment will be described with reference to FIGS. 1 to 13. In the following description, the vertical direction, the horizontal direction, and the front-back direction are the arrow finger directions shown in FIGS. 1 to 13.
As shown in FIG. 1, the cooling storage 10 includes a box-shaped storage main body 12 having an open front surface and a machine room 33 arranged on the left side of the storage main body 12. A center frame 14 extending in the vertical direction is attached to the central portion of the opening of the storage body 12, and a pair of doors 16 are rotatably attached to both sides of the center frame 14.

As shown in FIG. 2, the storage main body 12 is arranged on the left side of the outer box 18, the inner box 20 arranged inside the outer box 18, and the inner box 20, and the inner box 20 and the inner space communicate with each other. A cooler chamber 24 is provided, and a heat insulating material is filled between the outer box 18 and the inner box 20. The space on the right side of the cooler chamber 24 in the storage main body 12 is a storage chamber 22 capable of storing foodstuffs.

As shown in FIG. 2, a cooler 42 for cooling the inside of the storage main body 12 is housed in the cooler chamber 24. As shown in FIGS. 6 and 7, the cooler 42 has a fin group 49 in which a plurality of fins 48 made of rectangular metal plates long in the vertical direction are arranged in the front-rear direction, and a plurality of fins 48 while penetrating each fin 48. It is provided with an evaporation tube 44 having a folded shape. Further, plate-shaped end plates 47 are provided at both ends of the fin group 49, respectively.

As shown in FIG. 6, a cooling unit 34 including a compressor 38, a condenser 36, and a condenser fan 37 is provided in the machine room 33. As shown in FIG. 7, the compressor 38 and the condenser 36 in the machine room 33, and the cooler 42 in the cooler room 24 are circulated and connected by a metal refrigerant pipe 40.

As shown in FIGS. 2 and 11, the cooler chamber 24 has a box shape in which the right surface and the lower surface are open. The inner walls 30 on the front surface side and the rear surface side of the cooler chamber 24 are provided with protrusions 26 that project toward the surfaces facing each other. When the cooler 42 is housed in the cooler chamber 24, as shown in FIG. 6, the left and right bent portions 46 of the evaporation pipe 44 of the cooler 42 are located above the left and right protrusions 26. Here, in a state where the bracket (mounting portion) 50 described later is not mounted in the cooler chamber 24, the cooler 42 is displaced downward by gravity so that the bent portion 46 comes into contact with the upper surface of the protrusion 26. It has become. As a result, the cooler 42 is temporarily held in the cooler chamber 24. The bracket 50 is accommodated from the opening 32 side on the right side of the cooler chamber 24.

As shown in FIG. 11, three ribs 28 are provided on the inner wall 30 on the left side of the cooler chamber 24 so as to project to the right. The ribs 28 are arranged at predetermined intervals in the left-right direction, and their upper ends are inclined downward.

Below the cooler chamber 24, as shown in FIG. 2, a drain pan 94 that is inclined downward toward the center is provided. A discharge port 96 for discharging the melted frost is provided in the center of the drain pan 94.

As shown in FIG. 4, an L-shaped bracket 50 is housed in the cooler chamber 24. The bracket 50 can be attached to and removed from the cooler chamber 24 separately from the cooler 42, and as shown in FIGS. 8 and 9, the plate-shaped fan mounting portion 52 And a heater mounting portion 72 forming a frame shape.

As shown in FIGS. 8 and 9, the fan mounting portion 52 has a plate-shaped first plate portion 54 and a plate-shaped second plate portion 58 arranged at positions facing the first plate portion 54. And have. The first plate portion 54 is provided with the first opening 56 opened, and the second plate portion 58 is provided with the second opening 60 opened. Further, the upper end of the first plate portion 54 and the upper end of the second plate portion 58 are connected via the connecting portion 62.

As shown in FIGS. 8 and 9, a fan 88 that circulates the inside air cooled by the cooler 42 into the refrigerator is attached to the second plate portion 58 so as to cover the second opening 60. There is. The fan 88 is composed of a plurality of blades, and the movable range of the blades of the fan 88 is shown in a cylindrical shape as shown in FIG. When the fan 88 operates, as shown in FIG. 2, wind flows into the cooler chamber 24 along the air passage R, and the inside air of the storage chamber 22 sucks in the duct 98 provided on the right side of the cooler 42. It is sucked into the cooler chamber 24 from the port 100, cooled by the cooler 42, and blown out from the outlet 102. As a result, the inside of the storage chamber 22 is cooled.

As shown in FIG. 8, a rod-shaped first glass tube heater (heater) 90 long in the front-rear direction is attached between the first plate portion 54 and the second plate portion 58. The first glass tube heater 90 is arranged below the second opening 60 at a position that does not obstruct the wind flow of the fan 88.

Between the second opening 60 and the first glass tube heater 90, as shown in FIGS. 4 and 8, the second plate 58 to the cooler 42 side (that is, the first opening 56). A plate-shaped partition plate 64 that protrudes toward the side) and whose upper surface is inclined downward is provided. As shown in FIG. 2, a gap is provided between the end of the partition plate 64 and the cooler 42.

Below the first glass tube heater 90, as shown in FIGS. 3 and 8, the second plate portion 58 projects toward the cooler 42 side (that is, the first opening 56 side) thereof. A protrusion 68 whose upper surface is inclined downward is provided.

As shown in FIG. 8, the right frame portion 78 of the heater mounting portion 72 is in contact with the lower surface of the first opening 56 of the first plate portion 54 and is fixed to the fan mounting portion 52. Insertion holes are provided in the front frame portion 74 and the rear frame portion 76 of the heater mounting portion 72, and a rod-shaped second glass tube heater 92 is inserted through these insertion holes. Further, an umbrella portion 86 having a plate shape and inclined in the left-right direction from the center is provided from the front frame portion 74 to the rear frame portion 76 of the heater mounting portion 72. The umbrella portion 86 is arranged above the second glass tube heater 92, and suppresses the frost that has fallen from the cooler 42 from hitting the second glass tube heater 92. Further, the heater mounting portion 72 is provided with a plate-shaped bent portion 84 that protrudes downward from the left end of the left frame portion 80 and whose left side surface is an inclined surface 85 that is inclined toward the right frame portion 78. ..

The bracket 50 is attached and detached in a state where the cooler 42 is temporarily held in the cooler chamber 24. As described above, since the cooler 42 is temporarily held, it is not necessary to separately support the cooler 42 so that it does not fall during the attachment / detachment work, so that the bracket 50 can be easily attached / detached. Further, since the bracket 50 is integrated with the fan 88, the first glass tube heater 90, and the second glass tube heater 92, the workability for attachment / detachment is improved as compared with the case where each of them is individually attached. do. Further, by making such an integrated part, the manageability of the part is improved.

When mounting the bracket 50 into the cooler chamber 24, first, the bracket 50 is attached to the inner wall 30 on the left side of the cooler chamber 24 from the opening 32 side of the cooler chamber 24 (that is, the front side in FIG. 5). That is, it is displaced toward the back side of FIG.

When the bracket 50 is accommodated to the depth of the cooler chamber 24, as shown in FIG. 4, the first plate portion 54 of the fan mounting portion 52 comes into contact with the right surface of the cooler 42, whereby the first opening The portion 56 is covered by the cooler 42. Further, as shown in FIGS. 12 and 13, the gap between the first plate portion 54 and the second plate portion 58 is closed by the inner walls 30 on the front surface side and the rear surface side of the cooler chamber 24. The space between the first plate portion 54 and the second plate portion 58, which is closed by the inner wall 30 of the cooler chamber 24, is referred to as the cavity portion 66 shown in FIG. Further, as shown in FIG. 4, the inclined surface 85 of the bent portion 84 of the heater mounting portion 72 abuts on the upper end portion of the rib 28. As described above, since the bent portion 84 is provided with the inclined surface 85, the bent portion 84 can be easily brought into contact with the upper end portion of the rib 28, and the workability of attaching the bracket 50 to the cooler chamber 24 is improved. .. In this state, the bracket 50 is mounted in the cooler chamber 24 by fixing the fan mounting portion 52 to the cooler chamber 24 with screws. As a result, the cooler 42 is held by the bracket 50, and the temporary holding state of the cooler 42 is released. When the cooler 42 is held by the bracket 50, the cooler 42 is supported from below by the heater mounting portion 72 of the bracket 50, so that the cooler 42 is located above the sword compared to the temporarily held state. Therefore, the contact between the bent portion 46 and the protruding portion 26 of the cooler 42 is released.

The first plate portion 54 of the fan mounting portion 52 of the bracket 50 abuts on the right end of the end plate 47 of the cooler 42 to regulate the displacement of the cooler 42 to the right. Further, the heater mounting portion 72 of the bracket 50 abuts on the lower end of the end plate 47 of the cooler 42 to regulate the downward displacement of the cooler 42. As a result, even if vibration or the like is applied to the cooler 42, the displacement of the cooler 42 is restricted by the fan mounting portion 52 and the heater mounting portion 72, so that the cooler 42 is prevented from falling. Further, as shown in FIG. 4, the bent portion 84 of the bracket 50 is supported from below by the rib 28 in the cooler chamber 24, so that the bracket 50 hangs downward due to the weight of the cooler 42. Is suppressed, and the cooler 42 can be reliably held. After attaching the bracket 50, as shown in FIGS. 2 and 3, the duct 98 is attached so as to cover the left side surface of the cooler chamber 24 and the storage main body 12.

When the first glass tube heater 90 operates, as shown in FIG. 3, the heat of the first glass tube heater 90 stays in the space S1 below the partition plate 64 in the cavity 66, and the right surface of the cooler 42. The lower side is preferentially heated. Further, when the second glass tube heater 92 is operated, the lower surface of the cooler 42 is heated. After that, the heat remaining in the space S1 flows from the gap between the end of the partition plate 64 and the cooler 42 to the space S2 above the partition plate 64 in the cavity 66, and flows to the upper right side of the cooler 42. , And the fan 88 is heated. As a result, the frost adhering to the cooler 42 and the fan 88 is melted, and the frost is removed. Further, the entire bracket 50 is also heated by the heat of the first glass tube heater 90 and the second glass tube heater 92, and the frost adhering to the bracket 50 is also removed.

As described above, the cooler 42 is provided on the side of the first opening 56, the fan 88 is provided on the side of the second opening 60, and the first plate portion 54 and the second plate portion 58 are provided. Since the space between the two is blocked by the inner wall 30 of the cooler chamber 24, the heat of the first glass tube heater 90 tends to stay in the cavity 66, and the frost adhering to the cooler 42 and the fan 88 is removed. It can be removed efficiently. Further, when heat flows from the second opening 60 into the storage chamber 22, it passes through the space inside the fan 88, so that it is compared with the case where heat flows directly from the second opening 60 into the storage chamber 22. As a result, heat is less likely to leak into the storage chamber 22.

The frost removed from the fan 88 falls on the partition plate 64 arranged below the fan 88. Further, the frost that has fallen on the partition plate 64 is guided toward the cooler 42 by the inclination of the upper surface of the partition plate 64, and is above the protrusion 68 from the gap between the end of the partition plate 64 and the cooler 42. Fall into.

The frost that has fallen onto the protrusion 68 is guided toward the cooler 42 by the inclination of the upper surface of the protrusion 68, and is melted by the heated cooler 42. Further, the dropped frost is directly applied to the first glass tube heater 90 arranged above the protrusion 68, so that the melting of the frost is accelerated. The melted frost falls onto the drain pan 94 through the gaps of the fins 48 and is discharged from the discharge port 96.

According to this embodiment, the following actions and effects are exhibited.
The cooling storage 10 of the present embodiment is attached to a box-shaped storage body 12, a cooler 42 for cooling the inside air of the storage body 12, a fan 88 for circulating the inside air in the storage body 12, and a cooler 42. A first glass tube heater (heater) 90 for melting the frost and a bracket (mounting portion) 50 to which the first glass tube heater (heater) 90 is mounted are provided, and the bracket (mounting portion) 50 is at least 2. A cavity 66 having one opening is provided, a cooler 42 is provided on the side of the first opening (one opening) 56 of the cavity 66, and the second opening (the other opening) 60 side of the cavity 66. A fan 88 is provided in the cavity 66, and a first glass tube heater (heater) 90 is mounted in the cavity 66.

According to the present embodiment, the fan 88 is provided on the side of the second opening (the other opening) 60 with respect to the cavity 66 provided in the bracket (mounting portion) 50, and the cavity of the bracket (mounting portion) 50 is provided. Since the first glass tube heater (heater) 90 is mounted in the portion 66, the fan 88 is heated by the heat of the first glass tube heater (heater) 90. This makes it possible to defrost the frost adhering to the fan 88. Further, since the cooler 42 is provided on the 56 side of the first opening (one opening) of the bracket (mounting portion) 50, and the fan 88 is provided on the 60 side of the second opening (the other opening). The heat of the first glass tube heater (heater) 90 is easily retained in the cavity 66, so that the heat is efficiently transferred from the cavity 66 to both openings and is arranged on both openings of the cavity 66. The frost adhering to the cooler 42 and the fan 88 can be efficiently defrosted.

Further, a cooler chamber 24 for accommodating the cooler 42 is provided, and the bracket (mounting portion) 50 has a plate shape, and the first plate portion 54 provided with the first opening 56 opened and a plate. A second plate portion 58, which has a shape and is arranged to face the first plate portion 54 and is provided with a second opening 60 opened, is provided, and the first plate portion 54 and the second plate portion 54 are provided. The space between the plate portion 58 and the plate portion 58 may be closed by an inner wall 30 of the cooler chamber 24, and the closed space may be a hollow portion 66.

The space between the first plate portion 54 and the second plate portion 58 is the hollow portion 66, and the gap between the first plate portion 54 and the second plate portion 58 is the inner wall 30 of the cooler chamber 24. By closing with, the heat of the first glass tube heater (heater) 90 in the cavity 66 can be suppressed from escaping from the gap between the first plate portion 54 and the second plate portion 58. can.

Further, the cooler 42 is provided on the side of the first opening 56, the fan 88 is provided on the side of the second opening 60, and the first glass tube heater (heater) 90 is provided on the second opening. It is arranged below the portion 60, and protrudes downward from the second plate portion 58 toward the cooler 42 between the second opening 60 and the first glass tube heater (heater) 90. A plate-shaped partition plate 64 that is inclined to the surface may be provided.

Since the cooler 42 is provided on the side of the first opening 56 and the fan 88 is provided on the side of the second opening 60, heat tends to stay in the cavity 66. Further, since the partition plate 64 is inclined downward, the frost that has fallen from the fan 88 onto the partition plate 64 is guided to the cooler 42 side. Thereby, the frost can be melted by the cooler 42 heated by the first glass tube heater (heater) 90. Further, by providing the partition plate 64, the heat of the first glass tube heater (heater) 90 is suppressed from flowing above the partition plate 64, and easily accumulates below the partition plate 64, so that the cooler 42 The lower part can be heated preferentially.

Further, a gap is provided between the end portion of the partition plate 64 and the cooler 42, and the second plate portion 58 is connected to the cooler 42 below the first glass tube heater (heater) 90. A configuration may be provided in which a projecting portion 68 is provided so as to project toward the surface and the upper surface thereof is inclined downward.

By providing a gap between the end of the partition plate 64 and the cooler 42, the frost that has fallen on the partition plate 64 falls from the gap and falls on the protrusion 68, and the upper surface of the protrusion 68 is inclined. Guided to the cooler 42 side. At this time, the frost that has fallen on the protruding portion 68 is directly irradiated to the first glass tube heater (heater) 90 arranged on the upper portion of the protruding portion 68, so that the melting efficiency of the frost is improved. Can be done.

<Other embodiments>
The present invention is not limited to the embodiments described above and the drawings, and for example, the following embodiments are also included in the technical scope of the present invention.
(1) The hollow portion 66 of the present embodiment is a space in the fan mounting portion 52 between the first plate portion 58 and the second plate portion 58, which is closed by the inner wall 30 of the cooler chamber 24. However, for example, the fan mounting portion has a thick plate shape, and the fan mounting portion is provided with an opening that penetrates between the front surface and the back surface. It may be configured as a space between the front surface and the back surface in the opening.
(2) In the present embodiment, the first glass tube heater 90 is arranged below the second opening 60 of the second plate portion 58, but the first glass tube heater 90 is hollow. It may be placed anywhere as long as it is arranged in the section 66. For example, the first glass tube heater may be placed vertically and arranged on the side of the second opening.
(3) In the present embodiment, three ribs 28 are provided in the cooler chamber 24, but the number of ribs may be two or less, or four or more. Further, any configuration may be used as long as it abuts on the inclined surface 85 of the bent portion 84 of the heater mounting portion 72 and supports the heater mounting portion 72 from below. For example, a support portion long in the front-rear direction in the cooler chamber may be used. May be provided so that the upper surface of the support portion comes into contact with the inclined surface of the bent portion.

10 ... Cooling storage 12 ... Storage body 24 ... Cooler room 30 ... Inner wall 42 ... Cooler 50 ... Bracket (mounting part)
54 ... 1st plate 56 ... 1st opening 58 ... 2nd plate 60 ... 2nd opening 64 ... Partition plate 66 ... Cavity 68 ... Protruding 70 ... Gap 88 ... Fan 90 ... First Glass tube heater (heater)

Claims (4)

The box-shaped storage body and
A cooler that cools the inside air of the storage body,
A fan that circulates the inside air inside the storage body,
A heater that melts the frost adhering to the cooler, and
A mounting portion to which the heater is mounted is provided.
The mounting portion comprises a cavity having at least two openings, the cooler is provided on one opening side of the cavity, and the fan is provided on the other opening side of the cavity.
The heater is installed in the cavity,
The mounting part is
The first plate portion, which has a plate shape and is provided with the first opening opened,
It is provided with a second plate portion having a plate shape, arranged opposite to the first plate portion, and provided with a second opening.
The cavity is provided between the first plate and the second plate.
The first plate portion is located between the heater and the cooler.
The first opening is covered with the cooler and
The second opening is covered with the fan.
Cooled storage characterized by that. A cooler room for accommodating the cooler is provided.
The first aspect of claim 1, wherein the space between the first plate portion and the second plate portion is closed by an inner wall of the cooler chamber, and the closed space is the hollow portion. Cool storage. The cooler is provided on the first opening side, and the fan is provided on the second opening side.
The heater is arranged below the second opening.
The second aspect of the present invention, wherein a plate-shaped partition plate that protrudes from the second plate portion toward the cooler and is inclined downward is provided between the second opening and the heater. Cool storage. A gap is provided between the end of the partition plate and the cooler.
The cooling storage according to claim 3, wherein a protrusion is provided below the heater so as to project from the second plate toward the cooler and the upper surface thereof is inclined downward.

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