WO2018073990A1

WO2018073990A1 - Refrigerator

Info

Publication number: WO2018073990A1
Application number: PCT/JP2017/007729
Authority: WO
Inventors: 幸博田中
Original assignee: Ｆｓｘ株式会社
Priority date: 2016-10-20
Filing date: 2017-02-28
Publication date: 2018-04-26
Also published as: JPWO2018073990A1; JP6739883B2

Abstract

This refrigerator comprises: a body which has a door at the front; an inner chamber which is disposed within the body; a temperature control heat sink which is disposed in the vicinity of the rear surface in the inner chamber; a temperature control fan which is disposed on the front surface of the temperature control heat sink and blows the air in the inner chamber to the front surface of the temperature control heat sink; a radiating heat sink which is disposed on the outside of the rear surface of the inner chamber; a radiating fan which blows the air outside of the inner chamber to the radiating heat sink; a Peltier module which has a heat-absorbing surface connected to the temperature control heat sink and a heat-radiating surface connected to the radiating heat sink; an external panel and a rear panel which constitute the body and cover the inner chamber; and a partition wall which is formed between the rear panel and the inner chamber on the inside of the outer panel. The rear panel has an air intake port at a position facing the radiating fan and at least one opening in a region extending in the width direction of the rear panel above the air intake port, and is provided with air guides between the rear panel and the partition wall, the air guides guiding the air blown to the radiating heat sink by the radiating fan to the at least one opening of the rear panel.

Description

refrigerator

The present invention relates to a refrigerator that cools the contents.

Conventional showrooms, hotels, restaurants, etc. provide customers with wet towels such as hand towels that are cooled or heated according to the season and temperature in order to improve customer service. In general, when a wet towel that has been cooled or heated is provided to a customer, a cold storage room that can cool or heat the wet towel is used. As such a cold storage, a box-shaped heat conductor formed of a metal having good heat conductivity such as aluminum or an aluminum alloy, an electric heater wound around a peripheral wall portion of the box-shaped heat conductor, and a box A Peltier element that is in close contact with the bottom of the heat conductor, a box-shaped heat conductor, an electric heater, and a heat insulating layer that covers the outer periphery of the Peltier element. In the case of cooling and heating the box-shaped heat conductor, it is known that only the electric heater is energized without energizing the Peltier element and the box-shaped heat conductor is heated by the electric heater (for example, Patent Document 1).

Japanese Patent Laid-Open No. 11-316074

By the way, when there is a need to provide cooled wet towels to many customers, it may be possible to simultaneously cool a large number of wet towels with a large refrigerator, but when the installation space is limited, etc. May be difficult to install a large refrigerator. In addition, when the wet towel is cooled in the cool / warm chamber described in Patent Document 1, the box-shaped heat conductor is cooled by a Peltier element in close contact with the bottom of the box-shaped heat conductor, Since the wet towel accommodated in the box-shaped heat conductor is cooled by natural convection and heat conduction, it takes a long time to cool the wet towel.

Also, the box-shaped heat conductor is cooled and the wet towel contained in the box-shaped heat conductor is cooled by natural convection and heat conduction of the air in the cabinet, so it is close to the inner wall of the box-shaped heat conductor. The wet towel housed in the position is cooled in a short time, but it takes a very long time to cool the wet towel housed in the center of the box-shaped heat conductor and other wet towels around it. .

Therefore, it is desired to develop a refrigerator that can rapidly cool all the wet towels stored in the cabinet. Further, even when the wet towel can be rapidly cooled, it is preferable that the power consumption is low.

An object of the present invention is to provide a refrigerator capable of rapidly cooling a stored item with low power consumption.

The refrigerator of the present invention includes a main body having a door on the front surface, an internal tank disposed in the main body, a temperature control heat sink disposed in the vicinity of the back surface in the internal tank, and a front surface side of the temperature control heat sink. And a temperature control fan that blows air in the internal tank to the front surface of the temperature control heat sink, a heat dissipation heat sink that is disposed outside the back of the internal tank, and blows air outside the internal tank to the heat dissipation heat sink. A heat-dissipating fan, a Peltier module that connects a heat-absorbing surface to the temperature-controlled heat sink, and a heat-dissipating surface connected to the heat-dissipating heat sink; an outer panel and a rear panel that constitute the main body and covers the inner tank; A partition formed between the inner rear panel and the inner tank, and the rear panel captures air at a position facing the heat dissipating fan. And having at least one opening in a region extending in the width direction of the rear panel on the upper side of the air intake port, and blown against the heat sink by the heat dissipation fan between the rear panel and the partition wall. An air guide for guiding air to the at least one opening of the rear panel is provided.

In the refrigerator of the present invention, the air guide extends from the vicinity of the lower portion of the one side portion of the heat sink to the upper portion of the one side portion of the rear panel, and from the vicinity of the lower portion of the other side portion of the heat sink. And a second air guide extending in an upper direction of the other side portion of the rear panel.

Moreover, the refrigerator of this invention has a temperature control fan opposing part which has a some through-hole, and opposes the said temperature control fan, is arrange | positioned at the front side of the said temperature control heat sink, and is located up and down on both sides of the said internal tank A shielding plate that shields a region where the temperature control heat sink is disposed in a state where an air outlet is formed is provided.

The refrigerator of the present invention is characterized in that spaces communicating with the air outlet are formed on both sides of the temperature control heat sink.

Moreover, the refrigerator of this invention is provided with the partition plate which partitions the area | region where the said temperature control heat sink is arrange | positioned up and down on both sides of the said temperature control fan opposing part of the surface at the said temperature control heat sink side of the said shielding board. It is characterized by.

The refrigerator of the present invention is characterized in that plate-like fins extending in the direction of the inner walls on both sides of the internal tank are formed on the front surface of the temperature control heat sink.

The refrigerator of the present invention includes a main body having a door on the front surface, an internal tank disposed in the main body, a temperature control heat sink disposed in the vicinity of the back surface in the internal tank, and a front side of the temperature control heat sink. A temperature control fan that blows air in the internal tank to the front surface of the temperature control heat sink, a heat dissipation heat sink disposed outside the back surface of the internal tank, and air outside the internal tank to the heat dissipation heat sink. A radiating fan to be blown, a Peltier module for connecting a heat absorbing surface to the temperature adjusting heat sink, and a heat radiating surface to the heat radiating heat sink; and a temperature adjusting fan facing portion that has a plurality of through holes and faces the temperature adjusting fan. The temperature control heat sink is disposed on the front side of the temperature control heat sink, and the temperature control heat sink is disposed in a state where air blowing ports are formed above and below the both sides of the internal tank. Characterized in that it comprises a shielding plate for shielding the frequency band.

The refrigerator of the present invention is characterized in that the internal tub accommodates a wet towel and cools the wet towel.

According to the present invention, it is possible to rapidly cool the contained item with low power consumption.

It is a perspective view which shows the state which closed the door of the refrigerator which concerns on 1st Embodiment. It is a perspective view which shows the state which opened the door of the refrigerator which concerns on 1st Embodiment. It is a figure which shows the temperature control unit and heat dissipation unit which are attached to the internal tank which concerns on 1st Embodiment. It is a figure which shows the structure of the temperature control unit which concerns on 1st Embodiment. It is a figure which shows the structure of the temperature control heat sink which concerns on 1st Embodiment. It is sectional drawing of the front-back direction in the position where the Peltier module of the refrigerator which concerns on 1st Embodiment is arrange | positioned. It is a perspective view which shows the inner surface side of the rear panel of the refrigerator which concerns on 1st Embodiment. It is a block diagram which shows the system configuration | structure of the refrigerator which concerns on 1st Embodiment. It is a perspective view which shows the state which opened the door of the refrigerator which concerns on 2nd Embodiment. It is a front view which shows the state which opened the door of the refrigerator which concerns on 2nd Embodiment, and removed the ridge in an internal tank. It is sectional drawing (the AA cross section in FIG. 10) of the refrigerator which concerns on 2nd Embodiment. It is a cross-sectional perspective view (BB cross section in FIG. 10) of the refrigerator which concerns on 2nd Embodiment. It is a front perspective view of the shielding board concerning a 2nd embodiment. It is a back perspective view of the shielding board concerning a 2nd embodiment. It is a figure which shows the shape of the other temperature control heat sink which concerns on embodiment. It is a figure which shows the shape of the other temperature control heat sink which concerns on embodiment.

Hereinafter, a refrigerator according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a state in which the refrigerator door according to the first embodiment is closed, and FIG. 2 is a perspective view showing a state in which the refrigerator door according to the first embodiment is opened. The refrigerator 2 includes a box-shaped main body 4 and a door 6 provided on the front surface of the main body 4. An internal tub 12 for accommodating a wet towel or the like is installed in the main body 4, and a tub 13 for installing a wet towel is installed in the internal tub 12. Further, a temperature sensor 49 (see FIG. 8) for detecting the temperature in the internal tank 12 is provided in the internal tank 12. The internal tank 12 is covered with an outer panel constituted by an upper cover 14 and a lower cover 16 and a rear panel 18. A back partition 19 (see FIG. 6) is installed between the internal tank 12 and the rear panel 18. Here, a heat insulating material (not shown) such as urethane foam is disposed between the inner tank 12 and the upper cover 14, the lower cover 16, and the back surface partition wall 19.

An operation dial 8 for setting a cooling temperature is provided on the upper right portion of the front surface of the main body portion 4, and a dew receiving tray 10 is provided on the lower front surface of the main body portion 4. The rear panel 18 is formed with an opening 18a (see FIG. 6) for radiating heat by the heat radiating unit 22 (see FIG. 3). Here, the inner tank 12, the upper cover 14, the lower cover 16, the rear panel 18, the rear partition wall 19, the door 6 and the dew tray 10 constituting the main body 4 are polypropylene having low thermal conductivity from the viewpoint of chemical resistance and the like. Is formed by.

The right edge of the door 6 is attached to the right edge of the front surface of the main body 4 so as to be rotatable. A handle 6 a for placing a finger on the left edge of the door 6 when the door 6 is opened is formed along the left edge of the door 6. In addition, a recess 4a is formed at a position facing the handle 6a on the left side edge of the front surface of the main body 4 so that the handle 6a can be easily put on the finger.

FIG. 3 is a view showing a temperature control unit and a heat radiation unit attached to the internal tank according to the first embodiment. An opening 12 a is formed on the back surface of the internal tank 12. The temperature control unit 20 and the heat dissipation unit 22 are disposed so as to face the opening 12a from the inside and the outside of the internal tank 12. That is, the temperature control unit 20 is disposed along the back surface in the internal tank 12 so as to face the opening 12a. Moreover, the heat radiating unit 22 is arrange | positioned outside the back surface of the internal tank 12 so that the opening part 12a may be opposed.

The heat dissipating unit 22 includes a heat dissipating heat sink 24 and a heat dissipating fan 26 formed of a metal having high thermal conductivity such as aluminum. The heat radiating heat sink 24 includes a base plate 24a having a rectangular plate shape and a plurality of plate-like fins 24b formed on one surface of the base plate 24a at predetermined intervals. The other surface of the heat radiating heat sink 24 where the fins 24b are not formed is fixed to the outside of the back surface of the internal tank 12. The heat dissipation fan 26 is fixed to the central portion of the heat dissipation heat sink 24 at a position facing the fins 24b.

FIG. 4 is a diagram showing a configuration of the temperature control unit according to the first embodiment. The temperature control unit 20 includes a temperature control heat sink 30, a temperature control fan 32, a temperature control fan cover 34, a mounting plate 38, a Peltier spacer 40, and a Peltier module 42.

FIG. 5 is a diagram showing the configuration of the temperature control heat sink. The temperature control heat sink 30 is made of a metal having high thermal conductivity such as aluminum, and has a base plate 30a having a rectangular plate shape and a plurality of plate-like fins formed on one surface of the base plate 30a at predetermined intervals. 30b. The temperature control heat sink 30 is arranged in the internal tub 12 such that the fins 30 b face the inside of the internal tub 12 and the fins 30 b extend in the direction of the inner walls on both sides of the internal tub 12.

The temperature control fan 32 is fixed at the center of the temperature control heat sink 30 so as to face the fins 30b. The temperature control fan cover 34 includes a cover portion 34a that covers the temperature control fan 32 and plate portions 34b that are formed on both sides of the cover portion 34a. The cover 34 a is formed with a mesh for sending the air in the internal tank 12 to the temperature control fan 32. The temperature adjustment fan cover 34 covers the temperature adjustment heat sink 30 with the cover portion 34 a covering the temperature adjustment fan 32 and the plate portion 34 b covering the upper portions of the fins 30 b of the temperature adjustment heat sink 30 located on both sides of the temperature adjustment fan 32. Fixed.

The mounting plate 38 has a rectangular shape substantially the same size as the base plate 30a of the temperature control heat sink 30, and two openings 38a are formed so as to be line-symmetric with respect to the center of the mounting plate 38 in the width direction. Has been. The attachment plate 38 is fixed to the other surface of the base plate 30a of the temperature control heat sink 30 where the fins 30b are not formed.

The Peltier spacer 40 is formed of a metal having high thermal conductivity such as aluminum and has a rectangular plate shape. The temperature control unit 20 has two Peltier spacers, and the Peltier spacers 40 are fixed in close contact with the base plate 30a in the openings 38a of the mounting plate 38, respectively.

The Peltier module 42 has a heat absorbing surface 42a that absorbs heat when a predetermined voltage is applied and a heat radiating surface 42b that dissipates heat. The temperature control unit 20 includes two Peltier modules 42, and each Peltier module 42 is fixed so that the heat absorption surface 42 a is in close contact with the surface of the Peltier spacer 40 that is not fixed to the temperature control heat sink 30.

FIG. 6 is a cross-sectional view in the front-rear direction at a position where the Peltier module of the refrigerator according to the first embodiment is arranged. As shown in FIG. 6, in the opening 12 a of the internal tank 12 of the refrigerator 2, the temperature control unit 20 is disposed inside the internal tank 12, and the heat dissipation unit 22 is disposed outside the internal tank 12. That is, the temperature control unit 20 is fixed so that the mounting plate 38 is in close contact with the back surface in the internal tank 12 and the Peltier module 42 fixed to the Peltier spacer 40 faces the outside of the internal tank 12. The heat radiation unit 22 is fixed so that the other surface of the base plate 24 a of the heat radiation heat sink 24 is in close contact with the heat radiation surface 42 b of the Peltier module 42.

FIG. 7 is a perspective view showing the inner surface side of the rear panel 18. The rear panel 18 has an air intake port 18a at a position facing the heat radiating fan 26, and has a plurality of openings 18b in a region extending in the width direction of the rear panel 18 above the air intake port 18a. 19 is provided with a first air guide 18c and a second air guide 18d for guiding the air between the first air guide 19 and the plurality of openings 18b. That is, the first air guide 18c extending from the vicinity of the lower part of one side of the heat sink 24 toward the upper side of one inner wall of the rear panel 18 and the vicinity of the lower part of the other side of the heat sink 24 extending toward the upper part of the other inner wall of the rear panel 18. A second air guide 18d is provided. In the rear panel 18, the first air guide 18 c and the second air guide 18 d are formed integrally with the rear panel 18, but may be formed integrally with the rear partition wall 19. You may form as a different body from the partition 19.

FIG. 8 is a block diagram showing a system configuration of the refrigerator 2 according to the first embodiment. The refrigerator 2 includes a control unit 44 that controls the entire refrigerator 2 in an integrated manner. The control unit 44 is connected to the heat dissipation fan 26, the temperature control fan 32, the Peltier module 42, the operation dial 8, the power supply unit 48, and the temperature sensor 49. The power supply unit 48 supplies power to each unit of the refrigerator 2.

Next, a process for cooling the inside of the internal tank 12 of the refrigerator 2 according to the first embodiment will be described. When the cooling temperature is set by operating the operation dial 8, the control unit 44 uses the power supply unit 48 to radiate the fan 26, the temperature control fan 32, and the Peltier module 42 in order to cool the inside of the internal tank 12. Supply power. Thereby, the temperature control heat sink 30 is cooled by the Peltier module 42 via the Peltier spacer 40. Also, the air in the internal tub 12 is blown to the central portion of the temperature control heat sink 30 by the temperature control fan 32, and is formed by a plurality of fins 30b and a plate portion 34b of the temperature control fan cover 34 that covers the upper portions of the fins 30b. It passes through the air passage and flows toward the inner walls on both sides of the inner tank 12. During this time, the air is cooled, and the cooled air flows along the inner walls on both sides toward the door 6, that is, in the front direction of the refrigerator 2, and further wraps around the front surface of the wet towel accommodated in the internal tub 12. Then, it passes through the upper and lower portions of the wet towel and between the wet towels, reaches the temperature control fan 32, and is again sprayed by the temperature control fan 32 onto the central portion of the temperature control heat sink 30. Therefore, the wet towel accommodated in the internal tub 12 is efficiently conveyed by the cooled air that flows to the front side in the internal tub 12 along the inner walls on both sides in the internal tub 12 and circulates in the internal tub 12. Quick cooling.

Further, the power supply unit 48 feeds back the power supply to the Peltier module 42 and the like using the temperature in the internal tank 12 detected by the temperature sensor 49 so that the temperature in the internal tank 12 becomes the temperature set by the operation dial 8. Because of the control, power consumption can be reduced.

Further, the heat generated on the heat radiation surface 42 b of the Peltier module 42 is transmitted to the heat radiation heat sink 24. Then, heat is efficiently radiated from the heat radiating heat sink 24 by blowing air outside the refrigerator 2 to the heat radiating heat sink 24 by the heat radiating fan 26. Here, since the rear panel 18 includes the air guides 18c and 18d, the air heated by the heat radiating heat sink 24 does not stay around the heat radiating heat sink 24, and a plurality of the air guides 18c and 18d are provided along the first air guide 18c and the second air guide 18d. Since it is guided to the opening 18b and discharged from the opening 18b to the outside of the cabinet, the internal tank 12 can be effectively cooled without reducing the cooling effect.

According to the refrigerator 2 according to the first embodiment, the air in the internal tub 12 is cooled by blowing the air in the internal tub 12 to the cooling temperature control heat sink 30. Flowing along the inner walls on both sides of the internal tank 12 from the back side in the internal tank 12 to circulate the cooled air in the internal tank 12, the internal tank 12 can be cooled with high efficiency and low consumption All wet towels accommodated in the inner tub 12 can be rapidly cooled with electric power. Moreover, since the air in the internal tank 12 is circulated, it is possible to suppress the occurrence of dew condensation in the internal tank 12 and suppress a decrease in cooling efficiency.

Next, the refrigerator according to the second embodiment will be described. The refrigerator which concerns on 2nd Embodiment changes the temperature control fan cover 34 of the refrigerator 2 which concerns on 1st Embodiment to the shielding board 60. FIG. Since it is the same as that of the refrigerator 2 which concerns on 1st Embodiment about another point, it is based on 1st Embodiment in the structure same as the structure of the refrigerator 2 which concerns on 1st Embodiment. The refrigerator 50 according to the second embodiment will be described with the same reference numerals used in the description of the refrigerator 2.

FIG. 9 is a perspective view showing a state in which the door of the refrigerator 50 according to the second embodiment is opened, and FIG. 10 shows that the door 6 of the refrigerator 50 according to the second embodiment is opened and the tub in the internal tub 12 is shown. It is a front view which shows the state which removed 13. FIG. The refrigerator 50 includes a box-shaped main body 4 and a door 6 provided on the front surface of the main body 4. An internal tub 12 for accommodating a wet towel or the like is installed in the main body 4, and a tub 13 for installing a wet towel is installed in the internal tub 12. Here, on the inner side walls on both sides of the inner tub 12, a placement portion 12b for placing the ridge 13 installed in the upper stage is formed and a placement for placing the ridge 13 installed in the lower stage A portion 12c is formed. An operation dial 8 for setting a cooling temperature is provided at the upper right portion of the front surface of the main body portion 4, and a dew receiving tray 10 is provided at the lower front portion of the main body portion 4.

FIG. 11 is a cross-sectional view of the refrigerator 50 according to the second embodiment taken along the line AA in FIG. The rear panel 18 of the main body 4 is formed with an opening 18a for heat dissipation by the heat dissipation unit 22 (see FIG. 3). Further, an opening 12a (see FIG. 3) is formed on the back surface of the internal tank 12. The temperature control unit 20 and the heat dissipation unit 22 are disposed so as to face the opening 12a from the inside and the outside of the internal tank 12. That is, the temperature control unit 20 is disposed along the back surface in the internal tank 12 so as to face the opening 12a. Moreover, the heat radiating unit 22 is arrange | positioned outside the back surface of the internal tank 12 so that the opening part 12a may be opposed.

FIG. 12 is a cross-sectional perspective view taken along the line BB in FIG. 10 of the refrigerator 50 according to the second embodiment. As shown in the front perspective view of FIG. 13 and the rear perspective view of FIG. 14, the shielding plate 60 has a plate shape, and has a plurality of portions for sending the air in the internal tank 12 to the temperature control fan 32 at the center. A temperature control fan facing portion 62 having a through hole is formed. The shielding plate 60 is disposed on the front surface side of the temperature control heat sink 30 with the temperature control fan facing portion 62 facing the temperature control fan 32, and the air blowing ports 64 are formed above and below the both sides of the internal tank 12. Thus, the region where the temperature control heat sink 30 is disposed is shielded. That is, the shielding plate 60 is formed with a U-shaped recess 60a at the center in the vertical direction on both sides, the mounting portion 12a is positioned in the recess 60a, and both sides of the shielding plate 60 are in the inner tank. 12 is disposed on the front surface side of the temperature control heat sink 30 in a state of being in contact with the inner side walls on both sides. In this case, the upper part and the lower part of the back side of the temperature control fan facing part 62 provided on the shielding plate 60 are in contact with the upper part of the opening part 12 a formed in the inner tank 12 and the inner wall of the lower inner tank 12. Yes. Accordingly, air blowing ports 64 are formed above and below the both sides of the internal tank 12. In addition, spaces communicating with the air outlet 64 are formed on both sides of the temperature control heat sink 30. Further, on both sides of the temperature control fan facing portion 62 on the back surface side of the shielding plate 60, partition plates 60b that partition the region where the temperature control heat sink 30 is arranged up and down are provided.

Next, a process for cooling the inside of the internal tank 12 of the refrigerator 50 according to the second embodiment will be described. When the cooling temperature is set by operating the operation dial 8, the control unit 44 uses the power supply unit 48 to radiate the fan 26, the temperature control fan 32, and the Peltier module 42 in order to cool the inside of the internal tank 12. Supply power. Thereby, the temperature control heat sink 30 is cooled by the Peltier module 42 via the Peltier spacer 40.

In addition, the air in the internal tub 12 is blown to the central portion of the temperature control heat sink 30 by the temperature control fan 32 and is heated along the plurality of fins 30 b of the temperature control heat sink 30 in the space shielded by the shielding plate 60. It flows in the direction of the end portions on both sides of the conditioning heat sink 30. During this time, the air is cooled, and the cooled air passes through the spaces formed on both sides of the temperature control heat sink 30 and blows out from the air outlet 64 into the internal tank 12.

The air blown out from the air blowing port 64 formed in the upper part of the internal tub 12 is on the door 6 side along the upper surface and the side surface of the wet towel housed in the basket 13 installed in the upper stage in the internal tub 12. That is, it flows in the front direction of the refrigerator 50 and further wraps around the front surface of the wet towel. Then, it passes through the lower surface of the wet towel accommodated in the basket 13 installed in the upper stage and between the wet towel and the wet towel, reaches the temperature control fan 32, and again reaches the center of the temperature control heat sink 30 by the temperature control fan 32. The part is sprayed.

Further, the air blown out from the air blowing port 64 formed in the lower part of the inner tub 12 is on the door 6 side along the lower and side surfaces of the wet towel housed in the tub 13 installed in the lower stage in the inner tub 12. That is, it flows in the forward direction of the refrigerator 50 and further wraps around the front surface of the wet towel. Then, it passes through the lower surface of the wet towel accommodated in the basket 13 installed in the lower stage and between the wet towel and the wet towel, reaches the temperature control fan 32, and again reaches the center of the temperature control heat sink 30 by the temperature control fan 32. The part is sprayed.

Therefore, the wet towel which is accommodated in the internal tub 12 by the cooled air which flows to the front side in the internal tub 12 along the upper, lower and inner walls of the internal tub 12 and circulates in the internal tub 12. Is efficiently cooled quickly. Further, since air flowing from the front side in the internal tub 12 toward the temperature control fan 32 passes between the wet towels, wet towels having other wet towels around them are also quickly cooled quickly. The

Further, the heat generated on the heat radiation surface 42 b of the Peltier module 42 is transmitted to the heat radiation heat sink 24. Then, heat is efficiently radiated from the heat sink 24 by blowing air outside the refrigerator 50 onto the heat sink 24 by the heat radiating fan 26. Here, since the rear panel 18 includes the first air guide 18c and the second air guide 18d, the air heated by the heat radiating heat sink 24 does not stay around the heat radiating heat sink 24 and the first air guide 18c and the second air guide. The inner tank 12 can be effectively cooled without reducing the cooling effect because it is guided along the 18d to the plurality of openings 18b and discharged from the opening 18b to the outside of the warehouse.

According to the refrigerator 50 according to the second embodiment, the air in the internal tub 12 is cooled by blowing the air in the internal tub 12 to the cooling temperature control heat sink 30. In order to circulate the cooled air in the internal tank 12 by flowing along the upper, lower and inner walls of the internal tank 12 in the forward direction from the back side in the internal tank 12, the inside of the internal tank 12 is highly efficient. The wet towel accommodated in the inner tub 12 can be cooled rapidly with low power consumption. Moreover, since the air in the internal tank 12 is circulated, it is possible to suppress the occurrence of dew condensation in the internal tank 12 and suppress a decrease in cooling efficiency.

Moreover, since the partition plate 60b which partitions the area | region where the temperature control heat sink 30 is arrange | positioned up and down is provided in the both sides of the temperature control fan opposing part 62 of the back surface side of the shielding board 60, the temperature control fan 32 performs temperature control. The air blown to the upper half area of the heat sink 30 flows in the direction shielded by the shielding plate 60 along the plurality of fins 30b of the temperature control heat sink 30 toward the ends on both sides of the temperature control heat sink 30. It blows out into the internal tank 12 from the air blowing port 64 formed in the upper part of the internal tank 12. FIG. On the other hand, the air blown to the lower half region of the temperature control heat sink 30 by the temperature control fan 32 moves along the plurality of fins 30 b of the temperature control heat sink 30 in the space shielded by the shielding plate 60. It flows in the direction of the ends on both sides, and blows out into the internal tank 12 from an air outlet 64 formed in the lower part of the internal tank 12.

Here, when the shielding plate 60 is not provided with the partition plate 60 b and the wet towel is accommodated only in the ridge 13 installed in the upper stage in the internal tank 12, the upper part of the internal tank 12 is provided. Since the air blowing load from the air blowing port 64 formed is larger than the air blowing load from the air blowing port 64 formed in the lower part, the air blowing formed in the upper part of the internal tank 12 A lot of air is blown out from the air blowing port 64 formed in the lower part of the internal tank 12 as compared with the port 64, and the wet towel is accommodated only in the basket 13 installed in the lower stage in the internal tank 12. In this case, the air blowing load from the air blowing port 64 formed in the lower part of the internal tank 12 is blown out from the air blowing port 64 formed in the upper part. Since it becomes larger than the load, a large amount of air is blown out from the air outlet 64 formed at the upper part of the internal tank 12 as compared with the air outlet 64 formed at the lower part of the inner tank 12, Since the air reaches the temperature control fan 32 again without coming into contact with the wet towel, the wet towel cannot be efficiently cooled.

However, when the shielding plate 60 includes the partition plate 60 b, the air blown to the upper half area of the temperature control heat sink 30 by the temperature control fan 32 passes through the space above the partition plate 60 b of the shielding plate 60. It flows along the plurality of fins 30b of the temperature control heat sink 30 in the direction of the ends on both sides of the temperature control heat sink 30 and blows out into the internal tank 12 from the air outlet 64 formed in the upper part of the internal tank 12. On the other hand, the air blown to the lower half region of the temperature control heat sink 30 by the temperature control fan 32 controls the temperature below the partition plate 60 b of the shielding plate 60 along the plurality of fins 30 b of the temperature control heat sink 30. It flows in the direction of the ends on both sides of the heat sink 30 and blows out into the internal tank 12 from the air outlet 64 formed in the lower part of the internal tank 12. Therefore, even when the wet towel is accommodated only in the upper or lower ridge 13 in the internal tank 12, the wet towel can be efficiently cooled.

Moreover, although the temperature control unit 20 which concerns on each above-mentioned embodiment is provided with the temperature control heat sink 30 which has several plate-shaped fin 30b, not only this but predetermined length as shown in FIG. The plate-like fins 100a may include temperature control heat sinks 100 that are arranged at a predetermined interval in the vertical direction and the horizontal direction. When the temperature control heat sink 100 is provided, the air blown by the temperature control fan 32 flows in the vertical direction and the inner wall directions on both sides along the grooves between the fins 100a. Therefore, not only does the air circulate along the inner walls on both sides in the inner tub 12 to the front side of the wet towel accommodated in the inner tub 12, but the air also passes along the upper and lower surfaces in the inner tub 12. Since it goes around to the front side of the wet towel accommodated in the inside, the wet towel accommodated in the internal tank 12 can be cooled with higher efficiency. Therefore, the wet towel accommodated in the internal tank 12 can be rapidly cooled with low power consumption.

Further, the temperature control unit 20 may include a temperature control heat sink 102 having a plurality of plate-like fins 102a extending radially from the center of the temperature control heat sink 102 as shown in FIG. When this temperature control heat sink 102 is used, the air blown by the temperature control fan 32 flows radially along the groove between the fins 102a, and the air flows inside the inner tank 12 along the inner walls on both sides. Not only does it wrap around the front side of the wet towel housed in the tub 12, but also wraps around the front side of the wet towel housed in the internal tub 12 along the upper and lower surfaces in the inner tub 12, so it is higher. The wet towel accommodated in the internal tank 12 can be cooled efficiently. Therefore, the wet towel accommodated in the internal tank 12 can be rapidly cooled with low power consumption.

Moreover, you may provide the temperature control heat sink which has a pin-shaped fin. Even in this case. The air blown by the temperature control fan 32 passes between the pin-shaped fins, and only wraps around the front side of the wet towel accommodated in the inner tub 12 along the inner walls on both sides of the inner tub 12. Instead, the wet towel accommodated in the internal tub 12 can be cooled with higher efficiency because it wraps around the front surface side of the wet towel accommodated in the internal tub 12 along the upper and lower surfaces in the internal tub 12. Therefore, the wet towel accommodated in the internal tank 12 can be rapidly cooled with low power consumption.

Further, in each of the above-described embodiments, the wet towel is cooled by the

refrigerators

2 and 50, but the canned beverage or the like may be cooled or heated.

Next, the results of a cooling test of a bar-shaped folded wet towel using the refrigerator 50 according to the second embodiment and a conventional refrigerator having the same configuration as described in the prior art will be shown. In this test, a total of 30 wet towels were accommodated in each of the ridges 13 placed on the upper stage of the inner tub 12, and a total of 30 wet towels were stored. 30 pieces in total, 30 pieces in total, the temperature of the second wet towel in the three-stage wet towel housed in the upper tub 13 and the three-stage wet towel housed in the lower tub 13 The time until the temperature of the second-stage wet towel reached 15 degrees and 10 degrees after the wet towel was stored in the refrigerator was measured.

In Table 1, when the wet towel is cooled by the refrigerator 50, the time from when the wet towel is stored in the refrigerator 50 until the temperature of the wet towel reaches 15 degrees and 10 degrees is indicated by the upper tub (upper tier) and the lower tier. This is shown for each 籠 (bottom). In Table 2, when the wet towel is cooled by a conventional refrigerator, the time from when the wet towel is stored in the refrigerator until the temperature of the wet towel reaches 15 ° C. and 10 ° C. is shown in the upper row (upper row), This is shown for the lower ridge (lower). As shown in Tables 1 and 2, it was possible to cool the wet towel more rapidly when the wet towel was cooled by the refrigerator 50 than by the conventional refrigerator. Further, when the wet towel was cooled by the refrigerator 50, the second-stage wet towel among the wet towels stacked in three stages could be rapidly cooled.

DESCRIPTION OF SYMBOLS 2 ... Refrigerator, 4 ... Main-body part, 6 ... Door, 8 ... Operation dial, 12 ... Internal tank, 18 ... Rear panel, 18c ... 1st air guide, 18d ... 2nd air guide, 20 ... Temperature control unit, 22 ... Heat dissipation Unit: 24 ... Heat radiation heat sink, 24b ... Fin, 26 ... Heat radiation fan, 30 ... Temperature control heat sink, 30b ... Fin, 32 ... Temperature fan, 34 ... Temperature fan cover, 38 ... Mounting plate, 40 ... Peltier spacer, 42 ... Peltier module 48 ... Power supply unit 49 ... Temperature sensor 60 ... Shielding plate 60b ... Partition plate

Claims

A main body having a door on the front surface;
An internal tank disposed in the main body,
A temperature control heat sink disposed near the back surface in the internal tank;
A temperature control fan that is disposed on the front side of the temperature control heat sink, and blows air in the internal tank to the front surface of the temperature control heat sink;
A heat dissipating heat sink disposed outside the back surface of the internal tank;
A heat dissipating fan that blows air outside the internal tank to the heat dissipating heat sink;
A Peltier module for connecting a heat absorption surface to the temperature control heat sink, and connecting a heat dissipation surface to the heat dissipation heat sink;
An outer panel and a rear panel that constitute the main body and cover the inner tank;
A partition formed between the rear panel inside the outer panel and the inner tank,
The rear panel has an air intake port at a position facing the heat radiating fan, and has at least one opening in a region extending in the width direction of the rear panel above the air intake port,
A refrigerator comprising an air guide between the rear panel and the partition wall for guiding the air blown to the heat dissipation heat sink by the heat dissipation fan to the at least one opening of the rear panel.
The air guide includes: a first air guide extending in the upper direction of one side portion of the rear panel from the vicinity of the lower portion of one side portion of the heat dissipation heat sink; and the other side portion of the rear panel from the vicinity of the lower portion of the other side portion of the heat dissipation heat sink. The refrigerator according to claim 1, further comprising a second air guide extending in an upper part direction of the refrigerator.
A state having a plurality of through-holes and a temperature control fan facing portion facing the temperature control fan, disposed on the front side of the temperature control heat sink, and air blowing ports formed on both sides of the inner tank The refrigerator according to claim 1, further comprising a shielding plate that shields a region where the temperature control heat sink is disposed.
4. The refrigerator according to claim 3, wherein a space communicating with the air outlet is formed on both sides of the temperature control heat sink.
The partition plate which partitions up and down the area | region where the said temperature control heat sink is arrange | positioned at the both sides of the said temperature control fan opposing part of the surface at the said temperature control heat sink side of the said shielding board is provided. Or the refrigerator of 4.
The refrigerator according to any one of claims 1 to 5, wherein plate-like fins extending in the direction of the inner wall on both sides of the inner tank are formed on the front surface of the temperature control heat sink.
A main body having a door on the front surface;
An internal tank disposed in the main body,
A temperature control heat sink disposed near the back surface in the internal tank;
A temperature control fan that is disposed on the front side of the temperature control heat sink, and blows air in the internal tank to the front surface of the temperature control heat sink;
A heat dissipating heat sink disposed outside the back surface of the internal tank;
A heat dissipating fan that blows air outside the internal tank to the heat dissipating heat sink;
A Peltier module for connecting a heat absorption surface to the temperature control heat sink, and connecting a heat dissipation surface to the heat dissipation heat sink;
A state having a plurality of through-holes and a temperature control fan facing portion facing the temperature control fan, disposed on the front side of the temperature control heat sink, and air blowing ports formed on both sides of the inner tank A refrigerator comprising a shielding plate for shielding an area where the temperature control heat sink is disposed.
The partition plate which partitions up and down the area | region where the said temperature control heat sink is arrange | positioned at the both sides of the said temperature control fan opposing part of the surface at the said temperature control heat sink side of the said shielding board is provided. The refrigerator described.
The refrigerator according to any one of claims 1 to 8, wherein the internal tub accommodates a wet towel and cools the wet towel.