JP2002147919A - Business-use refrigerator provided with defrosting function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a business-use refrigerator provided with defrosting function, in which even at the time a high-frequency heating chamber is not used for defrosting, the high-frequency heating chamber is used for preservation of frozen foods and eliminate a dead-space by circulating forcedly cold air of a freezing chamber to a high-frequency chamber, to keep it at a freezing temperature. SOLUTION: In the refrigerator, there are provided a freezing chamber 2, a high-frequency heating chamber 4 for defrosting of frozen foods and a device 5 for cooling a magnetron radiating microwaves and high-frequency generation. A vent hole 9 is provided in a common wall between the chambers 2 and 4 and passes the cold air but blocks high-frequency waves. A circulation duct 24 is provided to allow the chamber 2 to communication with the chamber 4. An evaporator 22 is provided in the duct 24. Further, a heating-chamber circulation fan 23, an outlet vent hole 9a passing cold air, but blocking high-frequency wave, and a cooling unit 20 are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a commercial freezer with a thawing function, which has a thawing function by high-frequency heating added to a part thereof.

[0002]

2. Description of the Related Art As a conventional technique, Japanese Utility Model Application Laid-Open No. 56-1125 is known.
Japanese Patent Application Laid-Open No. 07-2007 discloses a technique disclosed in Japanese Unexamined Patent Application Publication No. 07-203,004. Hereinafter, description will be made with reference to FIG.

[0003] 1 is a freezer body with a high-frequency decompression device, 2 is a freezing room, 3 is a freezing device, and 4 is a high-frequency heating room adjacent to the freezing room 2.

[0004] 5 is a magnetron cooling and high frequency generator, 6 is a magnetron, 7 is an antenna installed on the upper side inside the high frequency heating chamber 4, which can heat food in the high frequency heating chamber 4 with high frequency. I have.

[0005] Reference numeral 8 denotes a punching plate which is provided adjacent to the freezing chamber 2 and the high-frequency heating chamber 4 and has a group of small holes having a diameter such that the high frequency does not pass therethrough. It is a common wall. Reference numeral 9 denotes a ventilation hole for communicating the inside of the freezing room 2 composed of a group of small holes of a punching plate with the inside of the high-frequency heating chamber 4, and 10 denotes a damper which is closed when no high-frequency heating is performed and passes through the ventilation hole 9. Cut off cold air.

Reference numeral 11 denotes a freezer compartment door that can open and close the opening of the freezing compartment 2, 12 denotes a heating compartment door that can open and close the opening of the high-frequency heating chamber 4, and the heating compartment door 11 has a high-frequency leakage prevention structure. I have. Reference numeral 13 denotes a thawing time setting switch, 14 denotes a thawing start switch, and 15 denotes a machine room.

Reference numeral 21 denotes a freezer fan. Also, 20
Is a condensing unit, and 22 is an evaporator, which constitutes the refrigerating apparatus 3. The cool air generated by the refrigerating apparatus 3 is always supplied to the freezing room 2 by the fan 21 in the freezer, and the frozen food in the freezer 2 is frozen. It has been done.

Next, the operation will be described.

When thawing frozen food, first, the freezer 2
, The frozen food that is being frozen is taken out, the frozen food is stored in the high-frequency heating chamber 4, and the heating chamber door 12 is closed.

At this stage, the damper 10 is in the closed state, and the cool air in the freezing room 2 is
There is no supply inside.

When a predetermined thawing time is set by a thawing time setting switch 13 and a thawing start switch 14 is operated, the damper 10 is opened and the cool air in the freezing room 2 is passed through the ventilation hole 9 and the high-frequency heating room 4 is opened. Flowing into
The high-frequency heating chamber 4 is filled with cool air, and the frozen food is covered with cool air.

At the same time, the magnetron cooling and high-frequency generator 5 operates to cool the magnetron 6 and oscillate high-frequency waves from the magnetron 6 so that the frozen food is thawed and cooked.

After the completion of the thawing cooking, the damper 10 operates to close the ventilation hole 9 and stop the circulation of cool air from the freezing room 2 to the high-frequency heating room 4.

In this way, the frozen food is covered with cold air,
While suppressing the progress of thawing heating on the surface, the thawing heat gradually penetrates into the inside of the frozen food, and the frozen food is thawed at substantially the same heating speed on both the surface and the inside.

[0015] Therefore, the frozen food can be thawed in a good condition without uneven heating, so that a good finish can be obtained even in the heating cooking after the thawing is completed.

[0016]

However, in the conventional configuration, when the high-frequency heating chamber 4 is not used for thawing, a group of ventilation holes provided in a common portion with the adjacent freezer 4 is used for the damper 10.
As a result, the air in the high-frequency heating device 2 is at about room temperature, so that frozen food cannot be stored, resulting in a dead space.

When the high-frequency heating chamber 4 is not used for thawing, the ventilation holes provided in the common part with the adjacent freezer 4 are closed by the damper 10 to prevent the inflow of cool air, so that the air in the high-frequency heating device 2 is There is a problem that the room temperature becomes about room temperature and the frozen food cannot be stored as it is after thawing, resulting in dead space.

Further, when the high-frequency heating chamber 4 is not used for thawing, the air holes in the high-frequency heating apparatus 2 are restricted by closing the ventilation holes provided in the common part with the adjacent freezer 4 with the damper 10 to prevent the inflow of cool air. There is a problem that the convenience is poor because the temperature of the frozen food and the frozen food after thawing cannot be arbitrarily stored at about room temperature.

Further, an enormous amount of time is required until the air in the high-frequency heating chamber 4 at room temperature is cooled and reaches a predetermined temperature until thawing in the high-frequency heating chamber 4 can be started. There was a problem that sex was bad.

It is an object of the present invention to forcibly circulate cool air in a freezing room to a high-frequency heating room, and to store frozen food while maintaining the high-frequency heating room at a freezing temperature even when the high-frequency heating room is not used for thawing. It is an object of the present invention to provide a commercial freezer with a thawing function that can eliminate dead space.

Another object is to control the amount of cool air flowing into the high-frequency heating chamber while maintaining the freezing chamber at the freezing temperature, and to keep the high-frequency heating chamber at the refrigeration temperature even when the high-frequency heating chamber is not used for thawing. Another object of the present invention is to provide a commercial freezer with a thawing function that can eliminate dead space by storing frozen food after thawing.

Still another object is to use a high-frequency heating room as a space for storing food at an optimal temperature by arbitrarily adjusting the temperature of the high-frequency heating room from room temperature to a freezing temperature, and having a highly convenient commercial use with a thawing function. It is to provide a freezer.

Still another object of the present invention is to provide a highly convenient commercial freezer with a thawing function that can quickly adjust to a predetermined temperature at which the high-frequency heating chamber can start thawing even when the high-frequency heating chamber is at room temperature. That is.

[0024]

According to the present invention, there is provided a commercial freezer having a thawing function, comprising: a freezing room for storing frozen foods; a high-frequency heating room for thawing and cooking frozen foods; A magnetron for irradiation, a magnetron cooling and high frequency generator, the freezing chamber and the high frequency heating chamber are provided adjacent to each other, and installed on a shared wall portion of both of them, and an air hole through which cool air passes but high frequency does not pass. A circulation duct provided in communication with the freezing chamber and the high-frequency heating chamber, an evaporator provided in the circulation duct, a heating chamber circulation fan provided in the circulation duct, and a A blow-off air hole through which the cool air blown by the heating room circulation fan passes but which does not pass the high frequency; a cooling unit connected to the evaporator and the refrigerant pipe to generate cool air; It was provided with a heating chamber thermistor for controlling the start-stop of the cooling unit to detect the temperature of the high-frequency heating chamber provided in the transfected.

Thus, the cold air in the freezing room is forcibly circulated to the high-frequency heating room, and the high-frequency heating room can be maintained at the freezing temperature even when the high-frequency heating room is not used for thawing.

A cooling fan provided in the circulation duct to blow cool air to the freezing chamber; an evaporator provided in the circulation duct to generate cool air to be blown by the cooling fan; A damper in the duct which is provided in the duct and regulates a circulation amount of the cool air generated in the evaporator to the high-frequency heating chamber; and a high-frequency heating of the cool air which is provided in the vicinity of the fan in the refrigerator and detects the temperature of the freezing chamber. An in-chamber thermistor for controlling the damper in the duct for adjusting the amount of circulation to the chamber is provided.

[0027] With this, while maintaining the freezing room at the freezing temperature, the amount of cool air flowing into the high-frequency heating chamber is controlled,
Even when the high-frequency heating chamber is not used for thawing, the high-frequency heating chamber can be kept at the refrigeration temperature.

Further, the commercial freezer with a thawing function of the present invention is provided near the ventilation hole to control the cool air passing therethrough, and arbitrarily adjusts the temperature in the high-frequency heating chamber from room temperature to the freezing temperature. A temperature adjustment switch is provided.

Thus, the temperature of the high-frequency heating chamber can be arbitrarily adjusted from room temperature to freezing temperature.

Further, the commercial freezer with a thawing function of the present invention is provided with a cooling capacity control unit for controlling the cooling capacity of the cooling unit.

Thus, even when the high-frequency heating chamber is at room temperature, the high-frequency heating chamber can be quickly adjusted to a predetermined temperature at which thawing can be started.

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a commercial freezer with a thawing function according to the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a commercial freezer with a thawing function of the present invention, and FIG. 2 is a plan view of the commercial freezer with a thawing function as viewed from above.

(Embodiment 1) FIG. 3 is a cross-sectional view of the commercial freezer with thawing function shown in FIG. 1 taken along line AA.

The same components and operations as those in the prior art have the same reference characters allotted, and detailed description thereof will not be repeated.

In FIG. 3, reference numeral 23 denotes a heating room circulation fan for circulating cool air to the high-frequency heating chamber, 24 denotes a circulation duct, and 30 denotes a heating chamber thermistor for detecting the temperature of the cool air in the circulation duct 24.

Reference numeral 8a denotes a blow-out punching plate, and 9a denotes a blow-out ventilation hole which is opened by the blow-out punching plate 8a and which allows cool air blown by the circulation fan 23 in the heating chamber to pass but not high frequency.

The operation of the commercial freezer with the thawing function configured as described above will be described below.

When the high-frequency heating chamber 4 is used for thawing,
Even when not used, the cool air generated by the refrigerating device 3 passes through the circulation duct 24, obtains the propulsion force by the circulation fan 23 in the heating room, enters the high-frequency defrosting room 4, and circulates through the ventilation holes 9 to the freezing room 2. Then, it is cooled again through the evaporator 22.

When the high-frequency heating chamber 4 is used for thawing, the frozen food being frozen is taken out of the freezing chamber 2, the frozen food is stored in the high-frequency heating chamber 4, and the heating chamber door 12 is closed. It is covered with cold air, and the high frequency is oscillated from the magnetron 6, and the frozen food is thawed and cooked.

At this time, the cool air to the high-frequency heating chamber 4 is supplied from the blowing vent 9a and flows into the freezing chamber 2 through the vent 9, but the high frequency is frozen by the punching plate 8 and the blowing punching plate 8a. It does not propagate into the chamber 2 or the circulation duct 24.

In this way, the frozen food is covered with cold air,
While suppressing the progress of thawing heating on the surface, the thawing heat gradually penetrates into the inside of the frozen food, and the frozen food is thawed at substantially the same heating speed on both the surface and the inside.

Further, the cool air in the freezing room 2 is
Even when the high-frequency heating chamber 4 is not used for thawing, dead space can be eliminated by keeping the high-frequency heating chamber 4 at a freezing temperature and storing frozen food.

(Embodiment 2) FIG. 4 is a sectional view of the commercial freezer with a thawing function shown in FIG. 1 taken along the line AA.

The same components and operations as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 6, reference numeral 25 denotes a damper in a duct for adjusting the amount of cool air circulating to the high-frequency heating chamber 4; 26, a fan in the refrigerator for circulating a part of the cool air to the freezing chamber 2; This is an internal thermistor that detects the temperature of the refrigerator.

The operation of the commercial freezer with the thawing function configured as described above will be described below.

When the high-frequency heating chamber 4 is used for thawing, the cooler is circulated in the order of the circulation duct 24, the high-frequency heating chamber 4, and the freezing chamber 2 by fully opening the damper 25 in the duct and stopping the fan 26 in the refrigerator. ing.

When storing the defrosted food in the high-frequency heating chamber 4, the cool air generated by the freezing device 3 is circulated to the freezing room 2 by the internal fan 26. At this time, the temperature in the freezer 2 is detected by the internal thermistor 31, and when the detected temperature becomes lower than the predetermined freezing temperature, the refrigerating device 3 is stopped.

On the other hand, the heating chamber thermistor 30 detects the temperature in the high-frequency heating chamber 4 and, if the detected temperature is lower than the predetermined refrigeration temperature, adjusts the damper in the duct in the closing direction to reduce the circulation amount of the cool air. If the detected temperature is higher than the predetermined refrigeration temperature, the damper in the duct is adjusted in the opening direction to increase the amount of circulating cool air, and the inside of the high-frequency heating chamber 4 is adjusted to an appropriate refrigeration temperature. I have.

In this way, while the freezing room 2 is maintained at the freezing temperature, the amount of cold air flowing into the high-frequency heating room 4 is controlled, and the high-frequency heating room 4 is kept in use even when the high-frequency heating room 4 is not used for thawing. Dead space can be eliminated by storing the frozen food after thawing at a refrigerated temperature.

(Embodiment 3) FIG. 5 is a sectional view of the commercial freezer with a thawing function shown in FIG. 3 taken along the line AA.

The same components and operations as those of the second embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

Reference numeral 10a denotes a common wall damper which is attached to a common wall of the high-frequency heating chamber 4 and the freezing chamber 2 and circulates cool air from the high-frequency heating chamber 4 to the freezing chamber 2 or stops the circulation by opening and closing. Reference numeral 32 denotes a temperature adjustment switch for adjusting the temperature of the high-frequency heating chamber 4 from the freezing temperature to room temperature.

The operation of the commercial freezer with the thawing function configured as described above will be described below.

When the high frequency heating chamber 4 is used for thawing, when the temperature adjustment switch 32 is pressed, the heating chamber thermistor 30 detects the temperature of the high frequency heating chamber 4 and simultaneously opens the common wall damper 10a to open the circulation duct 24 and the high frequency heating chamber. Preliminary cooling is performed by circulating cool air in the order of the heating chamber 4 and the freezing chamber 2. If the temperature detected by the heating chamber thermistor 30 has not reached the predetermined temperature, a display indicating that pre-cooling is in progress is displayed on the pre-cooling indicator 34 to indicate that it is waiting for cooling. When the temperature detected by the heating chamber thermistor 30 reaches a predetermined temperature, the display of the pre-cooling display 34 indicates that preparation for thawing is completed, and the thawing operation is started.

When storing the defrosted food in the high-frequency heating chamber 4, the high-frequency heating chamber 4 is adjusted to the selected temperature by selecting a temperature suitable for the storage temperature of the food with the temperature adjustment switch 32. .

When the food placed in the high-frequency heating chamber 4 is stored at about the freezing to refrigeration temperature, the common wall damper 10a is opened, and the heating chamber thermistor 30 detects the temperature in the high-frequency heating chamber 4 and the detected temperature is When the temperature is lower than the temperature selected by the adjusting switch 32, the damper in the duct is adjusted in the closing direction to reduce the amount of circulating cool air, and when the detected temperature is higher than the temperature selected by the temperature adjusting switch 32, the inside of the duct is reduced. The damper is adjusted in the opening direction to increase the amount of circulating cold air, so that the inside of the high-frequency heating chamber 4 is adjusted to an appropriate refrigeration temperature.

When the food placed in the high-frequency heating chamber 4 is stored at about room temperature, the circulation fan in the heating chamber is stopped, the damper in the duct is closed, and the common wall damper 10a is closed to connect to the high-frequency heating chamber 4. Stop circulation of cold air.

In this way, the high-frequency heating chamber 4 can be used as a space in which the temperature of the high-frequency heating chamber 4 can be arbitrarily adjusted from room temperature to a freezing temperature and stored at an optimum temperature for food.

(Embodiment 4) FIG. 6 is a sectional view of the commercial freezer with thawing function shown in FIG. 3 taken along the line AA.

The same components as those of the third embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

A cooling capacity control unit 33 controls the cooling capacity of the cooling device 3.

The operation of the commercial freezer with the thawing function configured as described above will be described below.

When the high-frequency heating chamber 4 is used for thawing, when the temperature adjustment switch 32 is pressed, the heating chamber thermistor 30 detects the temperature of the high-frequency heating chamber 4 and simultaneously opens the common wall damper 10a to open the circulation duct 24 and the high-frequency heating chamber. Preliminary cooling is performed by circulating cool air in the order of the heating chamber 4 and the freezing chamber 2.

At this time, if the temperature difference between the temperature detected by the heating chamber thermistor 30 and the predetermined temperature is large, the cooling capacity is increased, and if the temperature difference is small, the cooling capacity is adjusted to the predetermined capacity.
If the temperature detected by the heating chamber thermistor 30 has not reached the predetermined temperature, a display indicating that pre-cooling is in progress is displayed on the pre-cooling indicator 34 to indicate that it is waiting for cooling.

When the temperature detected by the heating chamber thermistor 30 reaches a predetermined temperature, the cooling control unit 33 controls the cooling device 3 so as to have a predetermined capacity, and the display of the pre-cooling display 34 indicates that preparation for thawing is completed. Is displayed and decompression work is started.

In the thawing operation, first, the frozen food being frozen is taken out of the freezing room 2, the frozen food is stored in the high-frequency heating room 4, and the heating room door 12 is closed.

By setting a predetermined thawing time with the thawing time setting switch 13 and operating the thawing start switch 14, the magnetron cooling and high frequency generator 5 is operated to cool the magnetron 6 and to switch the high frequency from the magnetron 6. Is oscillated and the frozen food is thawed and cooked.

At this time, when the heat of the thawing cooking is radiated in the high-frequency thawing chamber 4 and the heating chamber thermistor 30 detects the heat, the cooling capacity control unit 33 increases the cooling capacity and absorbs the radiated heat.

When storing the defrosted food in the high-frequency heating chamber 4, the high-frequency heating chamber 4 is adjusted to the selected temperature by selecting a temperature suitable for the storage temperature of the food with the temperature adjustment switch 32. .

When the food placed in the high-frequency heating chamber 4 is stored at about the freezing temperature to the refrigeration temperature, the common wall damper 10a is opened, and the heating chamber thermistor 30 detects the temperature in the high-frequency heating chamber 4, and the detected temperature becomes the temperature. When the temperature is lower than the temperature selected by the adjusting switch 32, the damper in the duct is adjusted in the closing direction to reduce the amount of circulating cool air, and when the detected temperature is higher than the temperature selected by the temperature adjusting switch 32, the inside of the duct is reduced. The damper is adjusted in the opening direction to increase the amount of circulating cold air, so that the inside of the high-frequency heating chamber 4 is adjusted to an appropriate refrigeration temperature.

When the food put in the high-frequency heating chamber 4 is stored at about room temperature, the circulation fan in the heating chamber is stopped, the damper in the duct is closed, and the common wall damper 10a is closed to close the high-frequency heating chamber 4. Stop circulation of cold air.

At this time, the cooling capacity control unit 33 performs optimum capacity control based on the detected temperatures of the thermistor 30 in the heating chamber and the thermistor 31 in the refrigerator and the temperature of the temperature adjustment switch 32.

Thus, even when the high-frequency heating chamber 4 is at room temperature, the high-frequency heating chamber 4 can be quickly adjusted to a predetermined temperature at which thawing can be started.

[0075]

As described above, according to the present invention, a freezing room for storing frozen foods, a high-frequency heating room for thawing and cooking frozen foods, and a microwave for irradiating the high-frequency heating room with microwaves. A magnetron, a magnetron cooling and high-frequency generator, the freezing chamber and the high-frequency heating chamber are provided adjacent to each other, and provided on a shared wall portion of both of them. A circulation duct provided in communication with the high-frequency heating chamber, an evaporator provided in the circulation duct, a heating room circulation fan provided in the circulation duct, and a heating room circulation fan provided in the circulation duct. A blow-off air hole through which the blown cool air passes but which does not pass the high frequency; a cooling unit connected to the evaporator through a refrigerant pipe to generate cool air; and a cooling unit provided in the circulation duct. Equipped with a heating chamber thermistor for controlling the start-stop of the cooling unit to detect the indoor circulation fan blowing temperature of the circulating cold air in the vicinity.

As a result, the cold air in the freezing room is forcibly circulated to the high-frequency heating room, and even when the high-frequency heating room is not used for thawing, the high-frequency heating room is kept at the freezing temperature and the frozen food is stored. A commercial freezer with a thawing function that can eliminate space can be provided.

Further, an internal fan provided in the middle of the circulation duct for blowing cool air to the freezing chamber, an evaporator provided in the circulation duct for generating cool air to be blown by the internal fan, and A damper in the duct for adjusting a circulation amount of the cool air generated in the evaporator to the high-frequency heating chamber provided in the duct; and a high-frequency heating chamber for the cool air by detecting a temperature of the circulating cool air provided in the vicinity of the fan in the refrigerator. An internal thermistor for controlling the damper in the duct for adjusting the amount of circulation to the duct is provided.

Thus, while maintaining the freezing room at the freezing temperature, the amount of cool air flowing into the high-frequency heating chamber is controlled,
Even when the high-frequency heating chamber is not used for thawing, it is possible to provide a commercial freezer with a thawing function that can eliminate dead space by keeping the high-frequency heating chamber at a refrigeration temperature and storing frozen food after thawing.

Further, a common wall damper is provided near the ventilation hole for controlling the cool air passing therethrough, and a temperature control switch for arbitrarily controlling the temperature in the high-frequency heating chamber from room temperature to freezing temperature is provided. Was.

Thus, it is possible to provide a highly convenient commercial freezer with a thawing function, in which the temperature of the high-frequency heating chamber can be arbitrarily adjusted from room temperature to the freezing temperature and the high-frequency heating chamber can be used as a space suitable for use. it can.

Further, a cooling capacity control unit for controlling the cooling capacity of the cooling unit is provided.

As a result, even if the high-frequency heating chamber is at room temperature, it is possible to provide a highly convenient commercial freezer with a thawing function that can quickly adjust to a predetermined temperature at which the high-frequency heating chamber can start thawing. .

[Brief description of the drawings]

FIG. 1 is a front view of a commercial freezer with a thawing function according to the present invention.

FIG. 2 is a plan view of a commercial freezer with a thawing function according to the present invention.

FIG. 3 is a sectional view of Embodiment 1 of the commercial freezer with a thawing function according to the present invention.

FIG. 4 is a sectional view of Embodiment 2 of a commercial freezer with a thawing function according to the present invention.

FIG. 5 is a sectional view of a commercial freezer with a thawing function according to a third embodiment of the present invention.

FIG. 6 is a sectional view of Embodiment 4 of the commercial freezer with a thawing function according to the present invention.

FIG. 7 is a sectional view of a conventional commercial freezer with a defrosting function.

[Explanation of symbols]

 Reference Signs List 2 Freezer room 4 High-frequency heating room 5 Magnetron cooling and high-frequency generator 6 Magnetron 9 Vent 9a Blow-out vent 10a Shared wall damper 20 Cooling unit 22 Evaporator 23 Heating room circulation fan 24 Circulation duct 25 Duct damper 26 Internal fan Reference Signs List 30 heating chamber thermistor 31 in-chamber thermistor 32 temperature adjustment switch 33 cooling capacity control unit

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3L045 AA02 AA04 AA07 BA05 CA06 DA02 EA01 KA09 LA05 LA06 LA09 MA02 NA01 NA07 PA04 3L086 BA03 CC06

Claims (4)

[Claims] A freezing chamber for storing frozen food, a high-frequency heating chamber for thawing and cooking the frozen food, a magnetron for irradiating the high-frequency heating chamber with microwaves, a magnetron cooling and high-frequency generator, A freezing room and the high-frequency heating room are provided adjacent to each other, and a ventilation hole through which the cool air passes but the high frequency does not pass is installed on a shared wall portion of these two,
A circulation duct provided in communication with the freezing chamber and the high-frequency heating chamber; an evaporator provided in the circulation duct; a heating chamber circulation fan provided in the circulation duct; and a heating chamber provided in the circulation duct. A blow-off air hole through which the cool air blown by the indoor circulation fan passes but the high frequency does not pass, a cooling unit connected to the evaporator and the refrigerant pipe to generate cool air, and a high-frequency heating chamber provided in the circulation duct. A commercial freezer with a thawing function, comprising a heating chamber thermistor for detecting the temperature and controlling the start and stop of the cooling unit. 2. An in-compartment fan provided in the middle of the circulation duct to blow cool air to the freezing room;
A duct damper provided in a circulation duct for adjusting a circulation amount of the cool air generated in the evaporator to the high frequency heating chamber; The commercial freezer with a thawing function according to claim 1, further comprising an internal thermistor for controlling the damper in the duct for adjusting the amount of circulation to the room. 3. A shared wall damper installed near the ventilation hole for adjusting cool air passing therethrough, and a temperature adjustment switch for arbitrarily adjusting the temperature in the high-frequency heating chamber from room temperature to freezing temperature. The commercial freezer with a thawing function according to claim 2. 4. A cooling capacity control unit for controlling a cooling capacity of the cooling unit is provided.
Commercial freezer with thawing function as described in.