JP2020148388A - Food thermal treatment chamber - Google Patents

Abstract

To provide a food thermal treatment chamber in which a freezing process and thawing process of food can be efficiently performed in a shorter period of time by optimizing a circulation condition of treatment air in the chamber.SOLUTION: A unit case 10 storing a circulation fan 11 therein includes: a first case wall 14 facing a food storage region M and a pair of second case walls 15, in which an air inlet 16 for fan opens on the first case wall 14 ad an air outlet 17 opens on the second case wall 15. A diversion corner 19 is provided between a chamber wall 2a and the second case wall 15. A placement shelf 5 includes a first shelf pillar 21 and a second shelf pillar 22 and a tray receiving frame 23. The second shelf pillar 22 includes a partition wall 27 for partitioning between the diversion corner 19 and the food storage region M, and a duct wall 28 that faces the chamber wall 2a with a gap L therebetween. Treatment air supplied from the diversion corner 19 is circulated into the food storage region M via a circulation passage 44 between the chamber wall 2a and the duct wall 28.SELECTED DRAWING: Figure 1

Description

The present invention relates to a foodstuff heat treatment chamber such as a thawing chamber for thawing ingredients such as frozen meat, fish, bread dough, and noodles, or a cooling device for freezing ingredients immediately after cooking.

Regarding this type of food heat treatment chamber, the applicant has previously applied for a cooling device for freezing the food immediately after cooking (Patent Document 1). There, a cooling unit is arranged on one side inside the cooling chamber, and a tray mounting shelf for storing foodstuffs is provided in a multi-stage manner between the unit and the other side of the cooling chamber. The cooling unit is composed of a cooler (evaporator), a large air volume circulation fan, a heater, and the like, which are provided inside the unit case. The circulation fan sucks the air on the mounting shelf side and blows it toward the cooler, and sends the cold air after heat exchange from the front and back of the cooler to the mounting shelf side to cool the food and freeze it in a short time.

The applicant manufactures and sells a thawing cabinet (food heat treatment chamber) for thawing foods such as frozen meat, fish, bread dough, and noodles, but the circulation form of thawed air in the existing thawing cabinet is It is basically the same as the cooling device of Patent Document 1. Specifically, as shown in FIG. 8, a thawing unit 52 is arranged on the rear wall of the thawing chamber 51, and a mounting shelf 55 for a tray 54 for storing foodstuffs is provided between the unit 52 and the door 53 in a multi-stage manner. ing. The thawing unit 52 is configured by arranging a large circulation fan 57, a heater 58, and a refrigerant pipe 59 inside the unit case 56. The circulation fan 57 sucks in the air on the mounting shelf 55 side, supplies pressurized thawed air (processed air) from the left and right outlets 60 of the unit case 56 toward the mounting shelf 55, and sends it to the tray 54. Thaw the contained ingredients. The heater 58 and the refrigerant pipe 59 are appropriately operated according to the temperature condition of the air inside the refrigerator to raise the temperature of the air inside the refrigerator or lower the temperature of the air inside the refrigerator. The mounting shelf 55 is composed of a pair of front and rear shelf columns 63 and 64 having a hollow frame body having a C-shaped cross section, and a tray receiving frame 65 that is hooked on both shelf columns 63 and 64.

Japanese Unexamined Patent Publication No. 2017-26264

According to the conventional thawing cabinet according to FIG. 8, many frozen foodstuffs can be completely thawed in 8 to 10 hours. However, in the conventional thawing cabinet, the thawing air sent from the outlet 60 of the unit case 56 is blocked by the shelf pillar 64 on the rear side near the thawing unit 52 and guided as indicated by the arrow. A part of it is sucked into the circulation fan 57, and a so-called "short circuit" is likely to occur. Therefore, the thawed air supplied from the circulation fan 57 cannot be properly circulated to effectively thaw the foodstuff, and the thawing process takes a long time. Such poor circulation of thawed air (processed air) can also occur in a cooling device that freezes and processes foodstuffs.

An object of the present invention is to provide a food material heat treatment chamber in which the circulation of processed air in the chamber is optimized so that the foodstuff can be efficiently frozen and thawed in a shorter time.

In the food heat treatment chamber according to the present invention, a processing unit 3 for circulating processing air and a mounting shelf 5 on which a group of trays 4 are placed are arranged inside the main body case 1. The processing unit 3 includes a unit case 10 arranged so as to face the food storage area M, and a circulation fan 11 arranged inside the unit case 10. The unit case 10 includes a first case wall 14 facing the food storage area M and a pair of second case walls 15 adjacent to the first case wall 14, and the suction fan 11 is sucked into the first case wall 14. The port 16 is opened, and the second case wall 15 is provided with an outlet 17 for processing air pressurized by the circulation fan 11. The mounting shelf 5 includes a pair of first shelf columns 21, a pair of second shelf columns 22 arranged facing the processing unit 3, and a group of tray receiving frames 23 mounted on both shelf columns 21 and 22. I have. As shown in FIG. 1, between the inner wall 2a facing the outlet 17 and the second case wall 15, the turning corner 19 that guides the treated air blown out from the outlet 17 along the inner wall 2a. Is provided. The second shelf pillar 22 includes a partition wall 27 that partitions the turning corner portion 19 and the food storage area M, and a duct wall 28 that faces the inner wall 2a of the refrigerator and the gap L through the gap L. Then, the processed air supplied from the turning corner 19 is circulated to the food storage area M through the circulation passage 44 between the inner wall 2a of the refrigerator and the duct wall 28.

Each of the first shelf column 21 and the second shelf column 22 is detachably supported via a mounting structure 34 arranged between the inner wall 2a of the refrigerator and the shelf columns 21 and 22. The outlet 46 of the circulation passage 44 protrudes toward the side of the first shelf column 21 beyond the mounting structure 34 of the second shelf column 22.

The second shelf column 22 integrally includes a partition wall 27 and a duct wall 28, and a duct upper wall 29 and a duct lower wall 30 formed above and below the duct wall 28 and blocking the upper and lower sides of the circulation passage 44.

A wind absorbing space 32 is provided between the tray 4 supported by the tray receiving frame 23 and the first case wall 14. The dividing wall 27 of the second shelf pillar 22 is provided flush with the first case wall 14 of the unit case 10, and the dividing corner portion 19, the circulation passage 44, and the air absorbing space 32 are provided with the dividing wall 27. , It is divided by a part of the duct wall 28.

The mounting structure 34 is composed of a plurality of hanging shafts 35 fixed to the inner wall 2a of the refrigerator and a plurality of hanging metal fittings 36 fixed to the shelf columns 21 and 22 facing the hanging shafts 35. In a state where the Dharma-shaped mounting hole 41 formed in the hanging bracket 36 is hooked and mounted on the hanging shaft 35, the first shelf pillar 21 and the second shelf pillar 22 are the tip ends of the inner wall 2a and the hanging shaft 35. It is held and fixed so as not to be idle by the retaining portion 40 provided in the above.

An engaging hole 31 for hooking and mounting the tray receiving frame 23 is formed in a multi-stage shape on the duct wall 28 of the second shelf column 22.

Inside the unit case 10 between the circulation fan 11 and the air outlet 17, a heater 12 and a refrigerant pipe 13 for adjusting the temperature state of the processing air are arranged. Heat exchange is performed between the heater 12 or the refrigerant pipe 13 and the processing air supplied from the circulation fan 11, and the heat treatment of the food material is performed with the processing air whose temperature state is adjusted.

In the food material heat treatment chamber according to the present invention, a diversion corner 19 is provided between the chamber inner wall 2a facing the air outlet 17 and the second case wall 15, and the diversion corner 27 is provided on the second shelf column 22. A partition was made between 19 and the food storage area M. Further, a circulation passage 44 is formed between the duct wall 28 provided on the second shelf pillar 22 and the inner wall 2a of the refrigerator, and the processed air supplied from the turning corner 19 is passed through the circulation passage 44 to the food storage area. I tried to circulate to M.

According to such a food material heat treatment chamber, the processing air blown from the outlet 17 to the turning corner 19 flows directly to the food storage area M and falls into a short circuit state, while the dividing wall 27 eliminates the turning corner. Most of the processed air supplied from the unit 19 can be appropriately circulated to the food storage area M along the circulation passage 44. Therefore, the circulation of the treated air in the refrigerator can be optimized, and the freezing treatment and the thawing treatment of the food material can be efficiently performed in a shorter time. Further, since the circulation passage 44 is formed by using the second shelf column 22, the shelf column structure can be simplified and the cost can be reduced as compared with the case where the shelf column and the duct wall are separately provided. Since a large amount of processed air can be supplied and circulated to the food storage area M, it can be thawed at a lower temperature. Further, as the circulation of the processed air in the refrigerator is optimized, the degree of freezing and thawing of the foodstuffs are changed depending on the mounting position of the tray 4 with respect to the mounting shelf 5 and the placement position of the foodstuffs in the tray 4. There is also an advantage that the unevenness in the degree can be eliminated.

The first shelf column 21 and the second shelf column 22 are detachably supported via a mounting structure 34 arranged between the inner wall 2a of the refrigerator and the shelf columns 21 and 22, respectively. In this way, if the shelf columns 21 and 22 are removable from the inner wall 2a of the refrigerator, when fragments and lipids of foodstuffs or drips exuded from the foodstuffs adhere to the surface of the pillars, each The shelf columns 21 and 22 can be easily removed from the inner wall 2a for cleaning. Therefore, the inside of the food heat treatment chamber can always be maintained in a hygienic state. Further, by projecting the outlet 46 of the circulation passage 44 beyond the mounting structure 34 of the second shelf column 22 toward the side of the first shelf column 21, the processed air supplied from the outlet 46 is circulated by the circulation fan. The circulation of the treated air in the refrigerator can be further improved by circulating the air to a position away from 11.

Above and below the duct wall 28, a duct upper wall 29 and a duct lower wall 30 that block the upper and lower sides of the circulation passage 44 are provided. According to such a food material heat treatment chamber, the processing air supplied from the outlet 17 to the turning corner 19 can be reliably prevented from leaking from above and below the circulation passage 44 by the duct upper wall 29 and the duct lower wall 30. , The amount of processed air supplied from the circulation passage 44 to the food storage area M can be increased to optimize the circulation of the processed air in the refrigerator.

The ventilation space 32 formed between the tray 4 and the first case wall 14 and the turning corner portion 19 and the circulation passage 44 are separated by a part of the partition wall 27 and the duct wall 28. According to such a food material heat treatment chamber, the processed air that has reached the air absorption space 32 in contact with the food material is smoothly flowed toward the circulation fan 11, and the processed air between the food storage area M and the processing unit 3 is used. Can be effectively circulated. Further, if the dividing wall 27 is provided flush with the first case wall 14 of the unit case 10, the turning corner portion 19 and the food storage area M can be partitioned at the shortest distance, so that the length of the dividing wall 27 is long. The structure of the second shelf column 22 can be simplified by the amount that can be shortened.

The mounting structure 34 is composed of the hanging shaft 35 fixed to the inner wall 2a of the refrigerator and the hanging metal fittings 36 fixed to the shelf columns 21 and 22, and the mounting holes 41 formed in the hanging metal fittings 36 are attached to the hanging shaft 35. In the state where the shelves are mounted, the shelf columns 21 and 22 are held and fixed in an immovable manner by the inner wall 2a of the refrigerator and the retaining portion 40 of the suspension shaft 35. According to such a food material heat treatment chamber, even if the vibration caused by the rotational drive of the circulation fan 11 is transmitted to the inner wall 2a of the chamber, the shelf columns 21 and 22 do not vibrate and shake, and the noise caused by the vibration does not occur. Does not occur.

When the engaging holes 31 for hooking and mounting the tray receiving frame 23 are formed in a multi-stage shape on the duct wall 28 of the second shelf pillar 22, the tray 4 is accommodated in a different size or shape, or is accommodated in the tray 4. The locking position of the tray receiving frame 23 with respect to the second shelf pillar 22 can be freely changed according to the size of the foodstuff to be used.

When the heater 12 and the refrigerant pipe 13 are arranged inside the unit case 10, heat exchange is performed between the heater 12 or the refrigerant pipe 13 and the processing air supplied from the circulation fan 11 to obtain a temperature state. The heat treatment of foodstuffs can be performed with the treated air adjusted to. Therefore, by adjusting the temperature state of the processed air according to the type of the food material to be heat-treated, the difference in the temperature state, and the like, the food material can be efficiently frozen and thawed in a shorter time.

It is a cross-sectional plan view of the main part of the food material heat treatment chamber which concerns on this invention. It is a front view of the food heat treatment storage in a state where the upper door is open. It is a longitudinal front view of a food heat treatment chamber. It is a cross-sectional plan view of the food heat treatment chamber. It is an exploded perspective view which shows one mounting shelf. (A) is a vertical sectional front view of the first shelf column, and (b) is a sectional view taken along line VV in FIG. 6 (a). (A) is a vertical sectional front view of the second shelf column, and (b) is a sectional view taken along line WW in FIG. 7 (a). It is a cross-sectional plan view which shows the structure of the conventional food material heat treatment chamber.

(Example) FIGS. 1 to 7 show an example in which the food material heat treatment chamber according to the present invention is applied to a thawing chamber. The front / rear, left / right, and up / down in the present invention follow the notations of the crossing arrows shown in FIGS. As shown in FIG. 2, the thawing cabinet has a main body case 1 composed of a vertically long square heat insulating box, and a thawing unit (treatment air) that circulates thawing air (processed air) inside the thawing chambers 2 above and below the main body case 1. A processing unit) 3 and a mounting shelf 5 for mounting a group of trays 4 containing foodstuffs are arranged. The front surface of each thawing chamber 2 is opened and closed by a swinging door 6. Although not shown, the machine room above the main body case 1 is provided with refrigerating equipment such as a compressor, a condenser, and a blower fan, and an operation panel 7 is arranged in front of the machine room. .. Since the internal structures of the upper and lower thawing chambers 2 are the same, the internal structure of the upper thawing chamber 2 will be described below, and the description of the internal structure of the lower thawing chamber 2 will be omitted.

The thawing unit 3 is arranged behind the unit case 10 arranged so as to face the food storage area M of the thawing chamber 2, the axial-flow type circulation fan 11 arranged inside the unit case 10, and the circulation fan 11. It is composed of a heater 12 and a refrigerant pipe 13 and the like. The heater 12 and the refrigerant pipe 13 are provided to adjust the temperature state of the thawed air.

The unit case 10 includes a first case wall (front wall) 14 facing the food storage area M, and a pair of second case walls (side walls) 15 adjacent to the first case wall 14, and the first case wall 14 A suction port 16 for the circulation fan 11 is opened in the center of the case, and an outlet 17 for thawed air pressurized by the circulation fan 11 is opened at the rear portion of the second case wall 15. The suction port 16 is provided with a cylindrical air guide cylinder 18 that surrounds the circulation fan 11. The horizontal width and vertical height of the unit case 10 are set to be slightly smaller than the horizontal width and vertical height of the thawing chamber 2. Therefore, in a state where the thawing unit 3 is fixed to the back wall of the thawing chamber 2, the thawed air blown out from the outlet 17 is blown between the inner wall 2a facing the outlet 17 and the second case wall 15 to the inner wall 2a. A turning corner portion 19 for turning guidance is formed along the above.

The mounting shelves 5 include a pair of left and right first shelf columns 21 arranged on the front side of the defrosting chamber 2, a pair of left and right second shelf columns 22 arranged facing the defrosting unit 3, and both shelf columns 21 and 22. It is provided with a group of tray receiving frames 23 to be mounted on the. The first shelf pillar 21 is made of a channel material-like frame having a C-shaped cross section, and an engaging hole 24 for hooking and mounting the tray receiving frame 23 is formed in a multi-stage shape on the frame wall facing the food storage area M. ing. Locking claws 25 that are attached to and detached from the engaging holes 24 are folded up and formed on the front and rear sides of the side wall of the tray receiving frame 23. The locking position of the tray receiving frame 23 with respect to the first shelf column 21 can be changed according to the difference in the size and shape of the tray 4 or the size of the foodstuff contained in the tray 4.

The second shelf pillar 22 is a vertically long division wall 27 that partitions between the turning corner 19 and the food storage area M, a vertically long duct wall 28 that faces the inner wall 2a of the refrigerator through a gap, and a duct wall 28. It is composed of a press-molded product integrally provided with a duct upper wall 29 and a duct lower wall 30 formed at the upper and lower ends. Similar to the first shelf column 21, engaging holes 31 for hooking and mounting the tray receiving frame 23 are formed in a multi-stage shape in the front and rear centers of the duct wall 28 facing the food storage area M. As a result, the locking position of the tray receiving frame 23 with respect to the second shelf column 22 can be changed according to the difference in the size and shape of the tray 4, the size of the foodstuff contained in the tray 4, and the like.

A mounting structure 34 is provided between the inner wall 2a of the refrigerator and the shelf columns 21 and 22 so that the first shelf column 21 and the second shelf column 22 can be washed. The mounting structure 34 includes a plurality of hanging shafts 35 fixed to the inner wall 2a of the refrigerator, and hanging metal fittings 36 fixed to the upper and lower sides of the shelf columns 21 and 22 facing the hanging shafts 35. The hanging shaft 35 is screwed and mounted on a female screw body 37 embedded and fixed in the inner wall 2a of the refrigerator, and has a flange 38 that is in close contact with the inner wall 2a of the refrigerator, a round shaft portion 39 that supports the hanging metal fitting 36, and a round shaft portion 39. A retaining portion 40 having a diameter larger than that of the coaxial portion 39 provided at the tip of the is integrally provided. The hanging metal fitting 36 is made of a press metal fitting having a hat-shaped cross section, and a Dharma-shaped mounting hole 41 is formed in the protruding wall thereof. The lower hole of the mounting hole 41 allows the retaining portion 40 to enter and exit, and the upper hole allows only the round shaft portion 39 to enter and exit. Therefore, the shelf columns 21 and 22 can be mounted on the inner wall 2a of the refrigerator by lowering the shelf columns 21 and 22 with the suspension shaft 35 inserted through the retaining portion 40.

The first shelf pillar 21 and the second shelf pillar 22 are hung on the hanging shafts 35 provided on the left and right inner walls 2a of the thawing chamber 2, and the tray receiving frames 23 are engaged with both the shelf pillars 21 and 22. The mounting shelf 5 is configured. In the state where the shelf columns 21 and 22 are hooked and mounted on the suspension shaft 35, as shown in FIGS. 6 and 7, each shelf column 21 and 22 is firmly fixed so as not to be able to move by the inner wall 2a of the refrigerator and the retaining portion 40. Hold and fix.

In a state where the second shelf pillar 22 is hung on the hanging shaft 35, the dividing wall 27 is flush with the first case wall 14 and partitions between the turning corner 19 and the food storage area M. .. Further, the duct wall 28 faces the inner wall 2a of the refrigerator through the gap L, and partitions the circulation passage 44 between the duct wall 28 and the inner wall 2a of the refrigerator. The upper and lower parts of the circulation passage 44 are blocked by the duct upper wall 29 and the duct lower wall 30. A wind absorbing space 32 is provided between the tray 4 and the first case wall 14, but between the turning corner 19 and the circulation passage 44 and the air absorbing space 32, the rear part of the partition wall 27 and the duct wall 28 ( It is divided by (part).

The circulation passage 44 communicates with the turning corner 19 via the inlet 45 at the rear end, and communicates with the food storage area M via the outlet 46 at the front end. In order to properly circulate the thawed air supplied from the outlet 46 of the circulation passage 44 in the food storage area M, the outlet 46 is moved beyond the mounting structure 34 of the second shelf column 22 to the side of the first shelf column 21. It is opened at a position that protrudes toward it. In this embodiment, the front-rear length of the circulation passage 44 is set to be larger than one-third of the front-rear length of the tray receiving frame 23, and the thawed air supplied from the circulation passage 44 to the food storage area M is trayed. It is possible to circulate from the front and rear halfway part of the side surface of 4 to near the inner surface of the door 6.

When thawing frozen foodstuffs, a group of trays 4 containing foodstuffs are placed on the left and right tray receiving frames 23, and the circulation fan 11 is started with the door 6 closed and the thawing chamber 2 sealed. To do. At this time, the heater 12 is operated at the same time according to the type of the frozen food material, the difference in the freezing temperature, and the like, or the refrigerant liquid is supplied to the refrigerant pipe 13 to adjust the temperature state of the thawed air. The thawed air pressurized by the circulation fan 11 comes into contact with the heater 12 or the refrigerant pipe 13 to exchange heat, or is blown out from the left and right outlets 17 to the turning corner 19 without heat exchange. , At the same corner 19, the direction is guided along the inner wall 2a of the refrigerator. Further, the thawed air supplied from the turning corner 19 is supplied and guided by the circulation passage 44 and circulates from the outlet 46 to the food storage area M.

In the thawing chamber according to the above embodiment, the turning corner portion 19 is provided between the inner wall 2a facing the outlet 17 and the second case wall 15, and the turning corner portion is formed by the dividing wall 27 provided on the second shelf pillar 22. A partition was made between 19 and the food storage area M. Further, a circulation passage 44 is formed between the duct wall 28 provided on the second shelf pillar 22 and the inner wall 2a of the refrigerator, and the thawed air supplied from the turning corner 19 is passed through the circulation passage 44 to the food storage area. I tried to circulate to M.

According to the thawing chamber according to the present embodiment having the above configuration, the thawing air blown from the outlet 17 to the turning corner 19 directly flows to the food storage area M and falls into a short circuit state. Most of the thawed air supplied from the turning corner 19 can be appropriately circulated to the food storage area M along the circulation passage 44 while eliminating the problem at 27. Therefore, the circulation of the thawed air in the refrigerator can be optimized, and the thawing process of the food material can be efficiently performed in a shorter time. Further, since the circulation passage 44 is formed by using the second shelf column 22, the shelf column structure can be simplified and the cost can be reduced as compared with the case where the shelf column and the duct wall are separately provided. Since a large amount of processed air can be supplied and circulated to the food storage area M, it can be thawed at a lower temperature. Further, as the circulation of the thawed air in the refrigerator is optimized, the degree of thawing of the foodstuff is uneven due to the difference in the placement position of the tray 4 with respect to the mounting shelf 5 and the arrangement position of the foodstuff in the tray 4. There is also an advantage that it can be eliminated.

Since the first shelf pillar 21 and the second shelf pillar 22 are detachably supported via the mounting structure 34 arranged between the inner wall 2a of the refrigerator and the shelf pillars 21 and 22, respectively, fragments of foodstuffs and lipids Or, when drip or the like exuded from the food material adheres to the surface of the pillar, each shelf pillar 21 and 22 can be easily removed from the inner wall 2a of the refrigerator and washed. Therefore, the inside of the thawing chamber can always be maintained in a hygienic state. Further, by projecting the outlet 46 of the circulation passage 44 beyond the mounting structure 34 of the second shelf column 22 toward the side of the first shelf column 21, the thawed air supplied from the outlet 46 is circulated by the circulation fan. Circulation to a position away from 11 can be further optimized for the circulation of thawed air in the refrigerator.

Since the duct upper wall 29 and the duct lower wall 30 that block the upper and lower sides of the circulation passage 44 are provided above and below the duct wall 28, the thawed air sent from the air outlet 17 to the turning corner 19 is the circulation passage 44. The duct upper wall 29 and the duct lower wall 30 can surely prevent leakage from above and below. Therefore, the amount of thawed air supplied from the circulation passage 44 to the food storage area M can be increased to optimize the circulation of thawed air in the refrigerator.

Since the air absorbing space 32 formed between the tray 4 and the first case wall 14 and the turning corner 19 and the circulation passage 44 are separated by a part of the dividing wall 27 and the duct wall 28, The thawed air that has come into contact with the food material and has reached the air absorption space 32 is smoothly flowed toward the circulation fan 11, and the thawed air can be effectively circulated between the food storage area M and the processing unit 3. Further, since the dividing wall 27 is provided flush with the first case wall 14 of the unit case 10, the turning corner portion 19 and the food storage area M can be partitioned at the shortest distance, and the length of the dividing wall 27 can be increased. The structure of the second shelf column 22 can be simplified by the amount that can be shortened.

The mounting structure 34 is composed of the hanging shaft 35 fixed to the inner wall 2a of the refrigerator and the hanging metal fittings 36 fixed to the shelf columns 21 and 22, and the mounting holes 41 formed in the hanging metal fittings 36 are attached to the hanging shaft 35. Since the shelf columns 21 and 22 are held and fixed in a non-movable manner by the retaining portion 40 of the inner wall 2a and the suspension shaft 35 in the state of being mounted on the hook, the circulation fan 11 is rotationally driven. Even if the vibration is transmitted to the inner wall 2a of the refrigerator, the shelf columns 21 and 22 do not vibrate and sway, and no noise due to the vibration is generated.

Since the engaging holes 31 for hooking and mounting the tray receiving frame 23 are formed in a multi-stage shape on the duct wall 28 of the second shelf pillar 22, the size and shape of the tray 4 are different, or the foodstuffs accommodated in the tray 4 are stored. The locking position of the tray receiving frame 23 with respect to the second shelf column 22 can be freely changed according to the size of the tray receiving frame 23.

Since the heater 12 and the refrigerant pipe 13 are arranged inside the unit case 10, heat exchange is performed between the heater 12 or the refrigerant pipe 13 and the processing air supplied from the circulation fan 11 to adjust the temperature state. The food can be heat-treated with the treated air. Therefore, by adjusting the temperature state of the processed air according to the type of the food material to be heat-treated, the difference in the temperature state, and the like, the food material can be efficiently frozen and thawed in a shorter time.

Although the thawing chamber has been described in the above examples, the food material heat treatment storage according to the present invention can be equally applied to a cooling device for freezing food products. The partition wall 27 of the second shelf pillar 22 does not have to be formed flush with the first case wall 14 of the unit case 10, but may be formed by a face wall inclined toward the first case wall 14. Further, if necessary, a partition wall 27 can be provided between the front edge of the air outlet 17 and the first case wall 14.

1 Main body case 2 Defrosting chamber 3 Defrosting unit (processing unit)
4 Tray 5 Mounting shelf 10 Unit case 11 Circulation fan 12 Heater 13 Refrigerant pipe 14 1st case wall 15 2nd case wall 17 Air outlet 19 Diverted corner 21 1st shelf pillar 22 2nd shelf pillar 23 Tray receiving frame 27 Division wall 28 Duct wall 32 Blower space 34 Mounting structure 35 Suspension shaft 36 Suspension bracket 44 Circulation passage

Claims (7)

Inside the main body case (1), a processing unit (3) for circulating processing air and a mounting shelf (5) on which a group of trays (4) are placed are arranged.
The processing unit (3) includes a unit case (10) arranged facing the food storage area (M) and a circulation fan (11) arranged inside the unit case (10).
The unit case (10) includes a first case wall (14) facing the food storage area (M) and a pair of second case walls (15) adjacent to the first case wall (14). A suction port (16) for the circulation fan (11) is opened in the case wall (14), and a blowout port (17) for the treated air pressurized by the circulation fan (11) is provided in the second case wall (15). Has been
The mounting shelves (5) are provided on a pair of first shelf columns (21), a pair of second shelf columns (22) arranged facing the processing unit (3), and both shelf columns (21.22). It is equipped with a group of tray receiving frames (23) to be mounted.
The treated air blown out from the air outlet (17) is directed along the inner wall (2a) between the inner wall (2a) facing the air outlet (17) and the second case wall (15). A turning corner (19) is provided,
The second shelf pillar (22) has a partition wall (27) that separates the turning corner (19) and the food storage area (M), and a duct wall that faces the inner wall (2a) and the gap (L). (28) and
The processed air supplied from the turning corner (19) is configured to circulate to the food storage area (M) through the circulation passage (44) between the inner wall (2a) and the duct wall (28). A food heat treatment cabinet characterized by being made. Each of the first shelf pillar (21) and the second shelf pillar (22) can be detachably attached and detached via the mounting structure (34) arranged between the inner wall (2a) of the refrigerator and each shelf pillar (21.22). Being supported,
The first aspect of claim 1, wherein the outlet (46) of the circulation passage (44) protrudes toward the first shelf column (21) beyond the mounting structure (34) of the second shelf column (22). Food heat treatment cabinet. The second shelf pillar (22) is formed above and below the partition wall (27) and the duct wall (28), and above and below the duct wall (28) to block the top and bottom of the circulation passage (44). The food material heat treatment cabinet according to claim 1 or 2, further comprising a lower wall (30) integrally. A wind absorbing space (32) is provided between the tray (4) supported by the tray receiving frame (23) and the first case wall (14).
The dividing wall (27) of the second shelf column (22) is provided flush with the first case wall (14) of the unit case (10), and is provided with a turning corner (19) and a circulation passage (44) and sucking. The food material heat treatment cabinet according to any one of claims 1 to 3, wherein the space between the wind spaces (32) is divided by a part of the partition wall (27) and the duct wall (28). The mounting structure (34) has a plurality of suspension shafts (35) fixed to the inner wall (2a) and a plurality of suspension shafts (21.22) fixed to each shelf column (21.22) facing the suspension shaft (35). It is composed of metal fittings (36).
In a state where the Dharma-shaped mounting hole (41) formed in the hanging bracket (36) is hooked and mounted on the hanging shaft (35), the first shelf pillar (21) and the second shelf pillar (22) are described above. The food material heat treatment cabinet according to claim 2, wherein the food treatment cabinet is held and fixed in a non-movable manner by a retaining portion (40) provided at the tip of the inner wall (2a) and the suspension shaft (35). Any one of claims 1 to 5 in which an engaging hole (31) for hooking and mounting the tray receiving frame (23) is formed in a multi-stage shape on the duct wall (28) of the second shelf pillar (22). Ingredients heat treatment cabinet described in. A heater (12) and a refrigerant pipe (13) for adjusting the temperature state of the processing air are arranged inside the unit case (10) between the circulation fan (11) and the outlet (17).
Claim that heat exchange is performed between the heater (12) or the refrigerant pipe (13) and the processed air supplied from the circulation fan (11), and the food is heat-treated with the processed air whose temperature state is adjusted. The food heat treatment chamber according to any one of 1 to 6.

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