JP7153876B2 - Defroster - Google Patents

Description

The present invention relates to unfreezers.

2. Description of the Related Art Conventionally, there is known a device that blows air into a thawing chamber in which frozen foods and other frozen foods are stored to defrost the frozen foods (see, for example, Patent Document 1).

JP 2005-218415 A

One of the parameters for shortening the thawing time required for thawing thawed items is the amount of air blown onto the frozen items. In addition, the fan layout becomes complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a thawing warehouse that can easily increase the air volume.

The present invention provides a thawing chamber that thaws frozen items by blowing air onto the frozen items placed in the thawing chamber. and a thawing fan provided in the side duct for blowing the air flowing through the side duct into the thawing chamber, wherein the side duct is installed on the inner surface of the thawing chamber. and a blower unit plate attached to the inner surface with a gap, and the inner surface of the thawing chamber has a concave portion facing the suction surface of the thawing fan toward the outside of the thawing chamber. and further comprising a fan holder for supporting the suction surface of the thawing fan, wherein the fan holder is fixed to the blower unit plate in a shape recessed toward the recess .

According to the present invention, the air volume can be easily increased.

1 is a front view of a thawing refrigerator according to an embodiment of the present invention; Perspective view of the thawing refrigerator with the top plate removed Front view of the thawing cold storage with the insulation door removed Perspective view of the thawing refrigerator shown in FIG. Assembly drawing showing the configuration of the defrosting blower unit VI-VI cross-sectional diagram in FIG. VII-VII cross-sectional diagram in FIG. Perspective view showing the configuration of the inner box Assembly drawing of the concave portion of the inner box Longitudinal cross-sectional view of the thawing cooler body Cross-sectional view of the thawing cooler body

A first invention is a thawing chamber that thaws frozen items by blowing air onto the frozen items placed in the thawing chamber, wherein the air is blown on the frozen items placed in the thawing chamber to thaw the frozen items. and a defrosting fan provided in the side duct for blowing the air flowing through the side duct into the defrosting chamber, facing the suction surface of the defrosting fan. A recess is provided at the position.
As a result, the amount of air blown by the thawing fan is increased by the concave portion, so the amount of air blown onto the frozen material can be easily increased without increasing the capacity of the thawing fan or increasing the number of thawing fans. The time required can be shortened.

A second invention is characterized in that, in the first invention, a wind direction plate is provided inside the side duct for guiding air flowing through the side duct to the recess.
As a result, the action of increasing the air volume of the thawing fan by the recess can be efficiently promoted.

In a third aspect based on the first or second aspect, a plurality of the defrosting fans are provided, and the recess is provided for each of at least two or more defrosting fans with a size that covers the defrosting fans. It is characterized by
As a result, the structure can be simplified and the volume of the recessed portion can be increased compared to the configuration in which the recessed portion is provided for each defrosting fan.

In a fourth aspect of the invention, in any one of the first to third aspects of the invention, a cooler is provided for cooling the air blown into the thawing chamber, and after thawing the frozen material, the thawing chamber is cooled by the cooler. is maintained at the cold storage temperature.
As a result, the user can store the thawed frozen food in the freezer compartment as it is without moving it to a refrigerator or the like, which improves convenience.

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, a thawing refrigerator will be described as an example of a thawing chamber.
FIG. 1 is a front view of a thawing refrigerator 1 according to this embodiment, and FIG. 2 is a perspective view of the thawing refrigerator 1 with the top plate removed. 3 is a front view of the thawing refrigerator 1 with the heat insulation door 2 removed, and FIG. 4 is a perspective view of the thawing refrigerator 1 shown in FIG.
The thawing cooler 1 of the present embodiment is a device that has the function of thawing frozen food and keeping it cold as it is, and is mainly used for commercial use. 4 and a cooling unit 6 .
As shown in FIGS. 3 and 4, the thawing cold-storage main body 4 has a box-shaped heat insulating box body 12 with an open front surface, and a thawing cold-storage chamber 10 is provided inside. In this embodiment, two vertically elongated thawing and cold-storage chambers 10 are arranged side by side in the heat-insulating box 12, and a tray-shaped frozen food is placed on the inner surface of each thaw and cold-storage chamber 10. Shelf supports 13 are appropriately provided to allow the shelf members to be installed in a plurality of vertical stages. As shown in FIGS. 1 and 2, a pair of left and right double-opening heat insulating doors 2 are attached to the front opening of the heat insulating box 12 over two stages, and the desired heat insulating door 2 can be opened vertically and horizontally. can be opened to access the thawing cold-storage chamber 10. - 特許庁

As shown in FIG. 4, a thawing air blowing unit 20 is arranged on the right side of each thawing cold storage chamber 10 (the right side when viewed from the front) to blow air to the frozen material to promote thawing. As shown in FIG. 5, the thawing blower unit 20 has a blower unit plate 21 made of sheet metal, and a plurality of thawing fans 22 fixed in the plane of the blower unit plate 21 .

The blower unit plate 21 may be a plate material that guides air from the rear side to the front side along the right inner side surface 42R1 of the thawing and cold storage chamber 10 and forms a later-described side duct 72 (FIG. 11) between the right inner box 32 and the right inner box 32. The air flowing through the side duct 72 is blown substantially horizontally into the thawing cold storage chamber 10 by the thawing fan 22 .

In addition, in the plane of the blower unit plate 21, between the rear end portion 21A, which is the edge on the back side, and the defrosting fan 22, and between the front end portion 21B, which is the edge on the front side, and the defrosting fan 22. , an appropriate opening area, an appropriate shape, and an appropriate number of blow-out holes 23 are formed. The front end portion 21B of the blower unit plate 21 is folded into an L shape and adheres tightly to the right inner surface 42R1, and the side duct 72 is closed on the front side of the thawing and cooling compartment 10. An appropriate opening area, an appropriate shape, and an appropriate number of ventilation holes 24 are formed in the L-shaped bent front end surface 21B1 of the front end portion 21B. Air flows smoothly from the back side to the front side.

As described above, the shelf members are supported in the thawing and cold storage chamber 10 with their mounting surfaces substantially horizontal. Air is blown by the defrosting fan 22, and the defrosting is promoted by the air. As shown in FIG. 4 , in the thawing blower unit 20 , the thawing fans 22 are arranged at predetermined intervals in the vertical direction at approximately equal intervals. The amount of air blown on the object is almost equal. As a result, the frozen items at any position in the vertical direction are thawed substantially equally, so that uneven thawing can be suppressed.

As shown in FIG. 4, such a thawing air blowing unit 20 is attached to the thawing cold storage chamber 10 with the thawing fan 22 and the blowout hole 23 covered by the guard 19 .

The cooling unit 6 is a unit that cools the inside of the thawing and cold insulation chamber 10, and maintains the inside of the thawing and cold insulation chamber 10 at a predetermined thawing temperature during the thawing operation of the frozen food, and maintains the predetermined cold insulation temperature during the cold insulation operation. have a controller that does As shown in FIG. 2, the cooling unit 6 has a box-shaped unit body 14 arranged on the upper surface of the thawing cold storage body 4, and the inside thereof is a machine room 16. The machine room 16 contains a compressor 25 (FIG. 5), a condenser 26, and a condenser fan 27 (FIG. 5), which are components of the refrigeration circuit, and act as a cooler. An evaporator 28 (FIG. 5) is arranged on the side of the thawing refrigerator main body 4 . The refrigerating circuit cools the air blown into the thawing cold storage chamber 10 .

Since the thawing refrigerator 1 has two operation modes, ie, the thawing operation and the cold storage operation, the user can perform the freezing operation after thawing the frozen material in the thawing operation. Convenience is improved because the frozen food can be stored as it is in the thawing cold storage chamber 10 without having to bother moving it to a refrigerator or the like.

Next, the internal structure of the thawing refrigerator main body 4 will be described in detail.

6 is a sectional view taken along line VI-VI in FIG. 3, and FIG. 7 is a sectional view taken along line VII-VII in FIG.
As shown in FIGS. 6 and 7, the heat insulating box 12 has a double structure in which an inner box 32 is housed in an outer box 30. As shown in FIG. Specifically, as shown in FIG. 7, two inner boxes 32 are juxtaposed left and right in one outer box 30, and the thawing and cooling compartment 10 is formed in each inner box 32. . A heat insulating material such as polystyrene foam is provided between the outer box 30 and the inner box 32 to insulate the thawing and cooling chamber 10 from the outside.

FIG. 8 is a perspective view showing the configuration of the inner box 32. As shown in FIG.
The inner box 32 is a vertically long rectangular parallelepiped box with an open front surface, and has a top plate 40, a bottom plate 41, a left plate 42L, a right plate 42R, and a back plate 43. The top plate 40 has an evaporator 28. An opening 44 is formed for disposing the . Further, the plate surface of the right side plate 42R constitutes the right inner side surface 42R1 of the thawing cold storage chamber 10, and the thawing air blowing unit 20 is attached to the right inner side surface 42R1 as described above. As shown in FIG. 9, a recess forming opening 45 is formed in the right inner side surface 42R1. A concave portion 47 recessed outward is formed. The concave portion 47 faces the suction side of each defrosting fan 22 and contributes to an increase in the air volume of the defrosting fan 22, which will be described later.

Next, the circulation of air in the thawing refrigerator main body 4 will be described in detail.
The air used for thawing and cold storage is circulated inside the thawing refrigerator main body 4 as follows.
That is, the air blown out into the thawing and cold-insulating chamber 10 is drawn from the upper portion of the thawing and cold-insulating chamber 10 and flows down inside the thawing and cold-insulated chamber 10 along the back surface of the back plate 43 . In the course of the downward flow, air flows from the rear surface of the thawing and cold-storage chamber 10 to the right inner side surface 42R1, and is blown out into the thawing and cold-storage chamber 10 by the thawing fan 22. - 特許庁

In this embodiment, such an air circulation path is formed by a top duct 70 , a rear duct 71 , and a side duct 72 provided inside the thawing refrigerator main body 4 .

10 is a longitudinal sectional view of the thawing cooler main body 4, and FIG. 11 is a transverse sectional view of the thawing cooler main body 4. As shown in FIG.
As shown in FIG. 6, the top duct 70 is an air passage that extends substantially horizontally in the upper part of the thawing cold storage main body 4 and guides the air sucked out of the thawing cold storage chamber 10 to the rear side. The top surface duct 70 is formed between the top surface 65 of the heat insulating box 12 (more precisely, the outer box 30 ) and the inner top surface 61 of the thawing and cooling chamber 10 . As shown in FIG. 10 , the inner top surface 61 is composed of a partition plate that closes the opening 44 formed in the top plate 40 of the inner box 32 . An internal fan 62 for drawing air is attached. As shown in FIG. 6, the inside fan 62 is arranged on an extension line of the thawing fan 22 arranged vertically.

The top duct 70 is provided with the evaporator 28, which exchanges heat with the air flowing through the top duct 70 for cooling.

The rear duct 71 forms an air passage extending vertically on the rear side of the inside of the thawing and cooling chamber 10, and its upper end 71A communicates with the top duct 70, through which the air flows. flows vertically downward.
As shown in FIG. 6, the back duct 71 is formed by a plate surface of the back plate 43 of the inner box 32 and a back cover 80 which is a plate member attached to the back plate 43 with a gap corresponding to the air passage. A lower end portion 80B of the rear cover 80 is bent toward the back plate 43 in the vicinity of the bottom surface 41A of the thawing and cooling compartment 10 in an L shape. As a result, a rear duct 71 is configured as an air passage extending vertically over substantially the entire length from the inner top surface 61 to the bottom surface 41A on the rear side of the interior of the thawing and cold insulation chamber 10 .

As shown in FIG. 7 , the width (horizontal length) of each of the top duct 70 and the rear duct 71 is formed substantially to the full width of the thawing and cooling chamber 10 .

As shown in FIG. 11, the side duct 72 forms an air passage that extends horizontally from the back side to the front side along the right inner side surface 42R1 of the thawing and cold storage chamber 10, and the back side end 72A extends to the back side. It communicates with the duct 71 .
As described above, the side duct 72 is composed of the right inner side surface 42R1 of the right side plate 42R of the inner box 32 and the blower unit plate 21 attached to the right side plate 42R with a gap corresponding to the air passage. . The blower unit plate 21 has a vertical height and a front-to-rear width (length from the rear end 21A to the front end 21B) so as to cover substantially the entire right inner surface 42R1 of the thawing and cooling chamber 10 .
As a result, a side duct 72 as an air passage through which air circulates from the back side to the front side is formed on substantially the entire right inner side surface 42R1 of the thawing and cold insulation chamber 10. As shown in FIG. In this configuration, the communication point between the side duct 72 and the rear duct 71 extends vertically beyond the range covering at least all of the thawing fans 22, and the air resistance at the communication point between the side duct 72 and the rear duct 71 increases. air is smoothly guided to each thawing fan 22 without excessive generation of .

In the thawing cold-storage main body 4, the air sucked out from the thawing cold-storage chamber 10 passes through the top duct 70, the rear duct 71, and the side duct 72 in this order, and enters the inside of the thawing cold-storage chamber 10 from the right inner surface 42R1. will be blown out.
In this configuration, the air sucked upward from the thawing and cold-storage chamber 10 and flowed into the top duct 70 flows into the thaw and cold-storage chamber 10 because the subsequent flow is regulated by the rear duct 71 and the side duct 72. Free infiltration of Therefore, the situation in which the air entering the thawing cold storage chamber 10 collides with the air blown out by the thawing fan 22 and the flow of the air blown out by the thawing fan 22 is prevented from being disturbed. As a result, turbulence of the air blown onto the frozen food is suppressed, so that variations in thawing can be suppressed and uniform thawing can be achieved.

In addition, the rear duct 71 provided in the thawing and cold insulation chamber 10 guides air from the inner top surface 61 of the thawing and cold insulation chamber 10 to substantially the entire length of the bottom surface 41A. can be introduced. As a result, the frozen material can be sufficiently thawed regardless of the vertical position of the frozen material in the thawing cold storage chamber 10 .

Here, as described above, the recess 47 is formed in the right inner surface 42R1 forming the side duct 72 of the present embodiment. As shown in FIG. 11, the suction surface 22A of the thawing fan 22 is arranged in a position facing the concave portion 47, supported by a fan holder 83 fixed to the blower unit plate 21. As shown in FIG. The fan holder 83 has a tray-like shape recessed toward the recess 47 in the side duct 72 and is positioned directly opposite the recess 47, and the thawing fan 22 is housed therein. The fan holder 83 is formed with an appropriate opening at a location corresponding to the suction surface 22A of the defrosting fan 22 so as not to hinder the air suction of the defrosting fan 22 .

As shown in FIG. 7, the concave portion 47 of the present embodiment is provided for each of a plurality of (three in the illustrated example) defrosting fans 22 and has a size that covers the defrosting fans 22. Compared to the configuration in which the recess 47 is provided for each fan 22, the structure is simplified and the volume of the recess 47 is increased.

In the side duct 72 , as shown in FIG. 11 , the air flowing from the rear duct 71 enters the recess 47 and decelerates, thereby increasing the static pressure at the recess 47 . By arranging the suction surface 22A of the defrosting fan 22 at a position facing the concave portion 47, the amount of air blown by the defrosting fan 22 is increased.
As a result, it is possible to increase the amount of air blown to the frozen material and shorten the time required for thawing without increasing the capacity of the thawing fan 22 or increasing the number of the thawing fans 22.例文帳に追加

In addition, inside the side duct 72, a tray-like fan holder 83 that is recessed toward the recess 47 is arranged at a position facing the recess 47, so that the air flows through the side duct 72 as shown in FIG. Air is guided to the side of the recess 47 so as to avoid the fan holder 83 . Thereby, the static pressure of the recess 47 is efficiently increased.
In addition, as shown in FIG. 11, the side surface 83A of the fan holder 83 facing the rear duct 71 is inclined from the rear side to the front end side so as to approach the concave portion 47 side. Thereby, the side surface 83</b>A functions as a wind direction plate that guides the air that has flowed from the rear duct 71 to the side duct 72 to the recess 47 . Air flowing through the side duct 72 is smoothly guided to the recess 47 by the side surface 83A, and the static pressure of the recess 47 is further efficiently increased.

According to the embodiment described above, the following effects are obtained.

In the thawing cooler 1 of the present embodiment, the side duct 72 is provided with the concave portion 47 at a position facing the suction surface 22A of the thawing fan 22, so the amount of air blown by the thawing fan 22 is increased. As a result, it is possible to easily increase the amount of air blowing to the frozen material without increasing the capacity of the defrosting fan 22 or increasing the number of the defrosting fans 22, thereby shortening the time required for defrosting.

In the thawing cooler 1 of the present embodiment, the side surface 83A having the function of a wind direction plate that guides the air flowing through the side duct 72 to the recess 47 is provided inside the side duct 72. It is possible to efficiently promote the action of increasing the air volume.

In the thawing cold storage 1 of the present embodiment, since the concave portion 47 is provided for each of the three thawing fans 22 and has a size that covers the three thawing fans 22, the configuration is such that the concave portion 47 is provided for each individual thawing fan 22. , the structure can be simplified and the volume of the recess 47 can be increased.

In the thawing refrigerator 1 of the present embodiment, the air sucked out to the upper part of the thawing and cold-storage chamber 10 is communicated with the rear duct 71 that flows downward along the back surface of the thawing and cold-storage chamber 10 and the rear duct 71. a side duct 72 that guides the air flowing through the rear duct 71 to the front side of the thawing and cold-storing chamber 10 along the right inner surface 42R1 of the thawing and cold-storing chamber 10; A thawing fan 22 for blowing the circulating air into the inside of the thawing cold storage chamber 10 is provided.
As a result, the flow of air sucked upward from the thawing and cooling chamber 10 is restricted by the rear duct 71 and the side duct 72, so free entry into the thawing and cooling chamber 10 is suppressed. Therefore, the situation in which the air that has entered the thawing cold storage chamber 10 collides with the air that is blown out by the thawing fan 22 and the flow of the air that is blown out by the thawing fan 22 is prevented from being disturbed. Therefore, the disturbance of the air blown onto the frozen food is suppressed, so that the unevenness of thawing can be suppressed and the frozen food can be thawed uniformly.

In the thawing refrigerator 1 of this embodiment, a plurality of thawing fans 22 are arranged in the vertical direction in the side duct 72, and at least all of the thawing fans 22 are connected to the side duct 72 and the rear duct 71. and are in communication with each other.
As a result, excessive air resistance does not occur at the communication points between the side ducts 72 and the rear duct 71, and the air is smoothly guided to the defrosting fans 22. - 特許庁Therefore, the circulation of the air in the thawing cold storage main body 4 becomes smooth, and the turbulence of the air in the thawing cold storage chamber 10 can be further suppressed.

In the thawing cooler 1 of this embodiment, the back duct 71 is formed by the back plate 43, which is the back of the thawing and cold storage chamber 10, and the back cover 80 provided with a gap between the back and the back. The side duct 72 is formed by the right inner side surface 42R1 of the thawing and cooling chamber 10 and the blower unit plate 21 provided with a gap between the right inner side surface 42R1.
Thereby, the rear duct 71 and the side duct 72 can be easily provided inside the thawing and cold storage chamber 10 .

In the thawing cooler 1 of the present embodiment, after the frozen food is thawed, the inside of the thawed cold storage compartment 10 is maintained at the cooling temperature by the evaporator 28, so the user does not bother to transfer the thawed frozen food to a refrigerator or the like. The food can be stored in the thawing cold storage chamber 10 as it is, and the convenience is improved.

Note that the above-described embodiment is merely an example of one aspect of the present invention, and can be arbitrarily modified and applied without departing from the gist of the present invention.

For example, in the above-described embodiment, the side duct 72 is provided on the right inner side surface 42R1 of the thawing and cold storage chamber 10, but it is not limited to this, and may be provided on the left inner side surface.

Further, in the above-described embodiments, horizontal and vertical directions, various numerical values, and shapes are consciously intended to represent the peripheral ranges of these directions, numerical values, and approximate shapes, unless otherwise specified. However, as long as the same effect is achieved and the numerical value does not deviate from the critical significance, it includes the surrounding range and approximate shape (so-called equivalent range).

INDUSTRIAL APPLICABILITY As described above, the thawing chamber according to the present invention can easily increase the air volume, and therefore can be applied to various technical fields involving thawing of frozen foods.

1 Thaw cold storage (freezer)
2 Insulated door 4 Thawing cooler body 6 Cooling unit 10 Thawing cold storage chamber (thawing chamber)
REFERENCE SIGNS LIST 12 heat insulation box 20 defrosting blower unit 21 blowing unit plate 22 defrosting fan 22A suction surface 28 evaporator (cooler)
42R1 Right inner surface 43 Back plate 47 Recess 62 Internal fan 70 Top duct 71 Rear duct 72 Side duct 80 Rear cover 83 Fan holder 83A Side

Claims (4)

In a thawing chamber that thaws frozen items placed in the thawing chamber by blowing air onto them,
a side duct that guides air from the back side of the thawing chamber to the front side along one of the left and right inner surfaces of the thawing chamber;
a thawing fan provided in the side duct for blowing air flowing through the side duct into the inside of the thawing chamber;
The side duct is composed of an inner surface of the thawing chamber and a blower unit plate attached to the inner surface with a gap,
The inner surface of the thawing chamber is provided with a concave portion facing the suction surface of the thawing fan toward the outside of the thawing chamber,
further comprising a fan holder for supporting the suction surface of the defrosting fan;
The fan holder is fixed to the blower unit plate in a shape recessed toward the recess.
A defrosting warehouse characterized by: 2. The defrosting warehouse according to claim 1 , wherein the fan holder has a side surface facing the rear duct that is inclined from the rear side to the front end side of the defrosting chamber so as to approach the concave side. . comprising a plurality of the defrosting fans,
3. The thawing warehouse according to claim 1, wherein the recess is provided for each of at least two thawing fans and has a size that covers the thawing fans. A cooler for cooling the air blown into the thawing chamber,
4. The thawing chamber according to any one of claims 1 to 3, wherein the thawing chamber is maintained at a cold storage temperature by the cooler after thawing the frozen material.

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