JP2017032169A - Cooling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooling device capable of evenly cooling an object to be cooled in a cooling chamber regardless of the position of the object.SOLUTION: A cooling device includes: a cooler 4 disposed in a cooling and holding chamber 2A subjected to heat insulation to outside; and a cooling chamber 3 that is disposed in the cooling and holing chamber 2A, in which objects to be cooled are stored, and that comprises first opening parts 3A-1, 3A-2 on a surface opposite to the cooler 4, second opening parts 3B-1, 3B-2 respectively on surfaces other than the surface opposite to the cooler 4, and first fans 10A-1, 10A-2 configured to suction air in the cooling chamber 3 to the first opening parts 3A-1, 3A-2, and then feed it to the cooler 4.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a cooling device that cools an object to be cooled such as food.

  Conventionally, as a cooling device for cooling an object to be cooled such as food, a forced air circulation system in which air cooled by a cooler such as a cooling coil is forcibly sent by a fan to a cooling chamber where the object to be cooled is installed and circulated. Are known. In addition, as a cooling device that does not perform forced air circulation, a cooling fan is provided in front of the cooler, the space in front of the cooling fan is used as a cooling chamber, and the cooling air existing near the cooler is There has been proposed one that is sucked from the rear surface and flows into the cooling chamber (see, for example, Patent Document 1).

  In a cooling device that does not perform this forced air circulation system, the cooling air in the cooling chamber is not forced to circulate to the cooler, and the boundary of the air layer is between the cooling section including the cooler and the cooling chamber. Heat exchange is carried out by intermolecular collisions at the surface, and the water vapor pressure in the cooling chamber is saturated and does not dry. It is said that since the ice crystals in the object to be cooled can be held in micro units, denaturation of the object to be cooled can be prevented.

Japanese Patent No. 3771556

  However, even in a cooling device that does not perform the forced air circulation system as described above, the air cooled by the cooler is sent to the cooling chamber by a cooling fan disposed in front of the cooler. Therefore, a large difference occurs in the cooling state between the object to be cooled disposed in front of the cooling fan in the cooling chamber and the object to be cooled disposed at other positions.

  Accordingly, an object of the present invention is to provide a cooling device that can uniformly cool an object to be cooled in a cooling chamber regardless of its arrangement.

  The cooling device of the present invention is a cooler disposed in a heat-insulated chamber insulated from the outside, and a cooling chamber disposed in the heat-insulated chamber and containing an object to be cooled. A cooling chamber having a first fan that has one opening, a second opening on a surface other than the surface facing the cooler, and sucks air from the cooling chamber into the first opening and sends the air to the cooler. Is included.

  According to the cooling device of the present invention, the air in the cooling chamber in which the object to be cooled is accommodated is sucked by the first fan of the first opening and sent to the cooler, and the air cooled by the cooler passes through the heat insulating chamber. It goes around and enters the cooling chamber through the second opening, cools the object to be cooled in the cooling chamber, is sucked again by the first fan in the first opening, sent to the cooler, and circulates. As a result, the object to be cooled in the cooling chamber is not blown directly by the fan, but the air in the cooling chamber is sucked out by the fan, cooled by the cooler and cooled by the circulating air, and becomes a turbulent state. The object to be cooled in the cooling chamber can be uniformly cooled regardless of the arrangement.

  The cooling device of the present invention preferably further includes a second fan that sucks air from the cooling chamber into the second opening and sends the air into the heat insulation chamber, and has a third opening at the top of the cooling chamber. . Thereby, the air in the cooling chamber is also sucked by the second fan from the second opening, that is, sucked in a direction different from that of the first opening and sent into the heat insulating chamber, and the air cooled by the cooler is cooled. By entering the cooling chamber from the third opening at the top of the chamber, turbulent flow is generated in the cooling chamber and the air is agitated, so that the object to be cooled in the cooling chamber can be cooled more uniformly.

  Here, the third opening can be formed by a large opening, but is preferably formed by a large number of openings. Thereby, the inflow of the cooling air entering the cooling chamber from the upper part of the cooling chamber can be restricted, and the object to be cooled arranged in the upper portion of the cooling chamber can be prevented from being cooled too much.

  In addition, the cooling device of the present invention preferably has a baffle plate disposed between the first fan and the second fan. As a result, the air sucked by the second fan from the cooling chamber does not merge straight with the air sucked by the first fan, but instead merges around the baffle plate, generating turbulent flow in the heat insulating chamber It is possible to cool with a cooler while stirring.

  In addition, the cooling device of the present invention may include a partition plate disposed between the first fan and the second fan. In this case, the air sucked by the first fan from the cooling chamber is cooled by the cooler and returns to the cooling chamber from the third opening at the top of the cooling chamber, and the air sucked by the second fan from the cooling chamber is cooled. It returns to a cooling chamber from the 3rd opening part of the upper part of a chamber, and it becomes possible to generate a turbulent flow in a heat insulation chamber, and to cool with a cooler, stirring.

  In addition, the cooling device of the present invention desirably has a fourth opening at the lower part of the cooling chamber. As a result, the air cooled by the cooler enters the cooling chamber not only from the third opening at the top of the cooling chamber but also from the fourth opening at the bottom, and the air in the cooling chamber is further agitated. Therefore, it becomes possible to cool the object to be cooled in the cooling chamber more uniformly.

  In addition, the cooling device of the present invention can be accommodated in the cooling chamber, can be provided with a plurality of trays on which the object to be cooled is placed in the vertical direction, and has a rack that closes the top of the uppermost tray. Is desirable. This prevents the cooling air flowing into the cooling chamber from the third opening from directly touching the object to be cooled placed on the uppermost tray, so that the object to be cooled placed on the uppermost tray is cooled. It can be prevented from being too much.

(1) A cooler disposed in a heat-insulating chamber insulated from the outside, and a cooling chamber disposed in the heat-insulating chamber and containing an object to be cooled. The first opening is provided on a surface facing the cooler. And a cooling chamber having a second opening on each surface other than the surface facing the cooler, and a first cooling chamber having a first fan that sucks the air in the cooling chamber and sends it to the cooler. According to the above, since the cooling air is cooled by the circulating cooling air without being directly blown to the object to be cooled in the cooling chamber, the object to be cooled in the cooling chamber can be uniformly cooled regardless of the arrangement. It becomes.

(2) The second opening has a second fan that sucks the air in the cooling chamber and sends it into the heat insulation chamber, and the configuration having the third opening at the top of the cooling chamber generates turbulence in the cooling chamber, Since the air is agitated, the object to be cooled in the cooling chamber can be cooled more uniformly.

(3) Since the third opening is formed by a large number of openings, the inflow of cooling air entering the cooling chamber from the upper portion of the cooling chamber can be restricted, and the third opening portion is disposed at the upper portion of the cooling chamber. It is possible to prevent the object to be cooled from being excessively cooled and cool the object to be cooled in the cooling chamber more uniformly.

(4) With the configuration having the baffle plate arranged between the first fan and the second fan, it is possible to generate a turbulent flow in the heat insulation chamber and cool it with the cooler while stirring, It becomes possible to cool a cooling material more uniformly.

(5) With the configuration having the partition plate arranged between the first fan and the second fan, it is possible to generate a turbulent flow in the heat insulation chamber and cool it with a cooler while stirring, It becomes possible to cool a cooling material more uniformly.

(6) With the configuration having the fourth opening at the lower part of the cooling chamber, the air cooled by the cooler enters the cooling chamber not only from the third opening at the upper part of the cooling chamber but also from the lower fourth opening. Since the air in the cooling chamber is further stirred, the object to be cooled in the cooling chamber can be cooled more uniformly.

(7) The tray can be accommodated in the cooling chamber, and a plurality of trays on which the object to be cooled can be placed can be arranged in the vertical direction, and the rack has a rack closed above the uppermost tray. The cooling air that flows into the top tray is prevented from directly touching the object to be cooled placed on the uppermost tray, preventing the object to be cooled placed on the uppermost tray from being overcooled, It becomes possible to cool a cooling material more uniformly.

It is a front view of the cooling device in the embodiment of the present invention. It is a see-through | perspective front view showing the internal structure of the cooling device of FIG. FIG. 2 is a perspective plan view showing the internal structure of the cooling device of FIG. 1. It is a see-through | perspective rear view showing the internal structure of the cooling device of FIG. It is a see-through | perspective right side view showing the internal structure of the cooling device of FIG. It is an enlarged front view of a cooling chamber. It is an enlarged plan view of a cooling chamber. It is an expansion right view of a cooling chamber. It is an enlarged front view which shows another embodiment of a cooling chamber. It is an expansion right view which shows another embodiment of a cooling chamber. It is plane explanatory drawing showing the flow of the cool air in a cooling holding chamber. It is right side explanatory drawing showing the flow of the cold air in a cooling holding chamber. It is plane explanatory drawing showing the flow of the cool air in a cooling holding chamber at the time of arrange | positioning a baffle plate between a 1st fan and a 2nd fan. It is plane explanatory drawing showing the flow of the cool air in a cooling holding chamber at the time of arrange | positioning a partition plate between a 1st fan and a 2nd fan. It is plane explanatory drawing showing the flow of the cool air in the cooling holding chamber at the time of abbreviate | omitting the 2nd fan of a 2nd opening part.

  1 is a front view of a cooling device according to an embodiment of the present invention, FIG. 2 is a transparent front view showing the internal structure of the cooling device of FIG. 1, and FIG. 3 is a transparent plan view showing the internal structure of the cooling device of FIG. 4 is a transparent rear view showing the internal structure of the cooling device of FIG. 1, FIG. 5 is a transparent right side view showing the internal structure of the cooling device of FIG. 1, FIG. 6 is an enlarged front view of the cooling chamber, and FIG. FIG. 8 is an enlarged right side view of the cooling chamber.

  As shown in FIGS. 1 to 5, in the cooling device 1 according to the embodiment of the present invention, an object to be cooled is accommodated in a housing 2 having a cooling holding chamber 2 </ b> A as a heat insulating chamber insulated from the outside. A cooling chamber 3 and a cooler 4 are provided. On the front surface of the housing 2, an opening / closing door 5 is provided for taking an object into and out of the cooling chamber 3. On the other hand, an opening / closing door 6 for performing maintenance of the cooler 4 is provided on the rear surface of the housing 2. A moving caster 7 is provided on the lower surface of the housing 2.

  The cooling chamber 3 and the cooler 4 are disposed in the cooling holding chamber 2A. The cooler 4 is connected to a compressor, a condenser, and the like 4A disposed at the top of the housing 2 by a refrigerant pipe 4B. The cooler 4 is an evaporator that is cooled by vaporizing the refrigerant circulating in the refrigerant pipe 4B and taking away the surrounding heat. The cooler 4 is rectangular when viewed from the front, and is disposed on the back side of the cooling chamber 3.

  As shown in FIGS. 6 to 8, the cooling chamber 3 cools the upper and lower first openings 3 </ b> A- 1 and 3 </ b> A- 2 on the surface facing the cooler 4, that is, the surface on the back side of the cooling chamber 3. The second openings 3B-1 and 3B-2 are respectively provided on both the left and right surfaces when the cooling chamber 3 is viewed from the front, that is, the surface other than the surface facing the container 4. The first openings 3A-1 and 3A-2 have first fans 10A-1 and 10A-2 that suck the air in the cooling chamber 3 and send it to the cooler 4, respectively. The second openings 3B-1 and 3B-2 respectively have second fans 10B-1 and 10B-2 that suck air in the cooling chamber 3 and send it into the cooling holding chamber 2A.

  The first openings 3A-1 and 3A-2 and the second openings 3B-1 and 3B-2 are defined as one first opening and second opening, respectively, and these first opening and second opening. It is also possible to have a configuration in which one first fan and second fan are provided in each part. Further, each of the first openings 3A-1, 3A-2 and the second openings 3B-1, 3B-2 is defined as three or more first openings and second openings, all of these first openings and It is also possible to have a configuration in which the first opening and the second fan are respectively provided in the second opening.

  The cooling chamber 3 has a third opening 3C at the top and a fourth opening 3D at the bottom. The third opening 3C and the fourth opening 3D are respectively provided on four surfaces around the cooling chamber 3 (see FIGS. 6 and 8). The third opening 3C and the fourth opening 3D are both rectangular openings.

  Further, the cooling device 1 in the present embodiment includes a rack 8 that can be accommodated in the cooling chamber 3. In the rack 8, a plurality of trays 9 on which an object to be cooled is placed can be arranged in a vertical direction. Each tray 9 is provided with a number of apertures so that cold air circulates up and down. The rack 8 has a structure in which the upper portion of the uppermost tray 9 is closed by a closing plate 9A to prevent the object to be cooled on the uppermost tray 9 from being cooled too much.

  In addition, about the 3rd opening part 3C of the upper part of the cooling chamber 3, it can replace with the above-mentioned large rectangular opening, and can be formed by many openings. FIG. 9 is an enlarged front view showing another embodiment of the cooling chamber, and FIG. 10 is an enlarged right side view showing another embodiment of the cooling chamber.

  In the example shown in FIGS. 9 and 10, the openings are formed by a large number of openings 3E instead of the rectangular third openings 3C. Thereby, the inflow of the cooling air entering the cooling chamber 3 from the upper part of the cooling chamber 3 can be restricted, and the object to be cooled arranged at the upper part in the cooling chamber 3 can be prevented from being cooled too much.

  Next, the flow of the cold air in the cooling device 1 having the above configuration will be described. 11 is an explanatory plan view showing the flow of cold air in the cooling holding chamber 2A, and FIG. 12 is an explanatory diagram on the right side showing the flow of cold air in the cooling holding chamber 2A.

  In the cooling device 1 configured as described above, the air in the cooling chamber 3 in which the object to be cooled is accommodated, as shown in FIG. 11, the first fans 10A-1 and 10A in the first openings 3A-1 and 3A-2. -2 and the second openings 10B-1 and 10B-2 of the second openings 3B-1 and 3B-2 are sucked into the cooler 4 and cooled by the cooler 4. Then, the air cooled by the cooler 4 enters the cooling chamber 3 from the upper third opening 3C and the lower fourth opening 3D of the cooling chamber 3, as shown in FIG. A turbulent flow is generated in 3 and the cooling air is agitated.

  Thus, in the cooling device 1 having the above-described configuration, the air in the cooling chamber 3 is not directly blown by the fan to the object to be cooled in the cooling chamber 3, and the air in the cooling chamber 3 is the first fans 10A-1, 10A-2 and Since it is cooled by the cooling air that is sucked out by the second fans 10B-1 and 10B-2, cooled by the cooler 4, and circulated, it becomes a turbulent state, so that the object to be cooled in the cooling chamber 3 is related to its arrangement. It is possible to cool uniformly.

  In particular, in the cooling device 1 configured as described above, the air in the cooling chamber 3 is sucked by the first fans 10A-1 and 10A-2 of the first openings 3A-1 and 3A-2, and the second opening 3B. -1 and 3B-2 are sucked in the direction different from the first openings 3A-1 and 3A-2 by the second fans 10B-1 and 10B-2 and sent to the cooler 4, By adopting a configuration that enters the cooling chamber 3 through the third opening 3C and the lower fourth opening 3D, strong turbulent flow is generated in the cooling chamber 3 and the air is agitated. It is possible to cool the cooling material more uniformly.

  Further, the second fans 10B-1 and 10B-2 of the second openings 3B-1 and 3B-2 circulate the cool air in the cooling holding chamber 2A and contribute to the generation of stronger turbulence. Note that the fourth opening 3D below the cooling chamber 3 may be omitted. In this case, the air cooled by the cooler 4 enters the cooling chamber 3 from the third opening 3C at the top of the cooling chamber 3, and the first fans 10A-1, 1A of the first openings 3A-1, 3A-2. Turbulence is generated by being sucked by the second fans 10B-1 and 10B-2 of 10A-2 and the second openings 3B-1 and 3B-2.

  Moreover, in the cooling device 1 having the above configuration, as shown in FIG. 13, the baffle plate 11 is disposed between the first fans 10A-1 and 10A-2 and the second fans 10B-1 and 10B-2. It is also possible to do. The baffle plate 11 prevents the air sucked from the cooling chamber 3 by the second fans 10B-1 and 10B-2 from directly joining the air sucked by the first fans 10A-1 and 10A-2. The baffle plate 11 is detoured and merged. A gap is formed above and below the baffle plate 11 so that air can be bypassed.

  As a result, the air sucked from the cooling chamber 3 can be cooled by the cooler 4 while generating turbulent flow in the cooling holding chamber 2A and being stirred, so that the object to be cooled in the cooling chamber 3 can be made more uniform. It becomes possible to cool.

  Alternatively, the upper and lower gaps of the baffle plate 11 are eliminated, and the partition plate 12 that completely partitions the first fans 10A-1 and 10A-2 and the second fans 10B-1 and 10B-2 as shown in FIG. It is also possible. As a result, the air sucked from the cooling chamber 3 by the first fans 10A-1 and 10A-2 is cooled by the cooler 4 and cooled from the third opening 3C (see FIG. 4) in the upper portion of the cooling chamber 3. While returning to the chamber 3, the air sucked by the second fans 10 </ b> B- 1 and 10 </ b> B- 2 from the inside of the cooling chamber 3 returns to the cooling chamber 3 from the third opening 3 </ b> C (see FIG. 8) above the cooling chamber 3. It becomes like this. Thereby, it becomes possible to cool by the cooler 4 while generating turbulent flow in the cooling holding chamber 2A and stirring, and to cool the object to be cooled in the cooling chamber 3 more uniformly.

  In the cooling device 1 having the above configuration, the second fans 10B-1 and 10B-2 in the second openings 3B-1 and 3B-2 may be omitted. FIG. 15 is an explanatory plan view showing the flow of cool air in the cooling holding chamber 2A when the second fan of the second openings 3B-1 and 3B-2 is omitted.

  In this case, the air in the cooling chamber 3 is sucked by the first fans 10A-1 and 10A-2 of the first openings 3A-1 and 3A-2, sent to the cooler 4, and cooled by the cooler 4. Air enters the cooling holding chamber 2A and enters the cooling chamber 3 through the second openings 3B-1 and 3B-2, cools the object to be cooled in the cooling chamber 3, and again the first opening 3A-1. , 3A-2 are sent to the cooler 4 sucked by the first fans 10A-1 and 10A-2 and circulate.

  Even in such a configuration, the object to be cooled in the cooling chamber 3 is cooled by the air in the cooling chamber 3 being sucked out by the first fans 10A-1 and 10A-2 without being directly blown by the fan. Since it is cooled by the air cooled and circulated by the vessel 4 and is in a turbulent state, the object to be cooled in the cooling chamber 3 can be uniformly cooled regardless of its arrangement. In this example, the third opening 3C and the fourth opening 3D may be omitted.

  The cooling device of the present invention is useful as a device for cooling an object to be cooled such as a foodstuff, and is particularly suitable as a cooling device that can cool an object to be cooled in a cooling chamber uniformly regardless of its arrangement.

DESCRIPTION OF SYMBOLS 1 Cooling device 2 Housing | casing 2A Cooling holding chamber 3 Cooling chamber 3A-1, 3A-2 1st opening part 3B-1, 3B-2 2nd opening part 3C 3rd opening part 3D 4th opening part 3E Opening hole 4 Cooling 5 and 6 Opening and closing door 7 Caster 8 Rack 9 Tray 9A Closure plate 10A-1, 10A-2 First fan 10B-1, 10B-2 Second fan 11 Baffle plate 12 Partition plate

Claims (7)

A cooler disposed in a heat-insulated chamber insulated from the outside;
The cooling chamber is disposed in the heat insulating chamber and accommodates an object to be cooled, and has a first opening on a surface facing the cooler and a second opening on a surface other than the surface facing the cooler. And a cooling chamber having a first fan that has a first fan that sucks air from the cooling chamber into the first opening and sends the air into the cooler.   2. The cooling device according to claim 1, further comprising: a second fan that sucks air in the cooling chamber into the second opening and sends the air into the heat insulation chamber, and has a third opening at an upper portion of the cooling chamber.   The cooling device according to claim 2, wherein the third opening is formed by a large number of openings.   The cooling device according to claim 2, further comprising a baffle plate disposed between the first fan and the second fan.   The cooling device according to claim 2 or 3 which has a partition plate arranged between said 1st fan and said 2nd fan.   The cooling device according to any one of claims 2 to 5, further comprising a fourth opening at a lower portion of the cooling chamber.   7. The apparatus according to claim 1, further comprising: a rack that can be accommodated in the cooling chamber, can be provided with a plurality of trays on which the object to be cooled is placed in a vertical direction, and has a closed upper portion of the uppermost tray. The cooling device as described.

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