JP2009030961A - Cooling chamber - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooling chamber capable of rapidly and certainly supercooling liquid filled into a vessel by a simple structure. <P>SOLUTION: This cooling chamber 1 has a casing 2, a soft cup 3 provided inside of the casing 2 and storing the vessel P filled with liquid, a cooling medium Q filled into a space 4 formed between the soft cup 3 and the inner wall of the casing 2, and cooling means 5 for cooling the cooling medium Q. The cooling medium Q is cooled by the cooling means 5 with the vessel P stored in the soft cup 3, and the vessel P is cooled by the cooling medium Q via the soft cup 3. Thus, the cooling chamber stores the vessel P at a temperature not higher than the freezing point of liquid and in a supercooled state where the liquid is kept unfrozen. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a refrigerator for supercooling liquid beverages such as teas, coffees, beverages containing alcohol, body fluids such as blood, biological tissue preservation fluids such as organs, and the like.

  As a refrigerator that can store a container in which a liquid beverage is placed at a temperature below the freezing point of the liquid and in a supercooled state in which the liquid beverage is kept unfrozen, for example, a cooling device described in Patent Document 1 is provided. Are known.

  The cooling device according to Patent Document 1 includes a cooler that houses a container, and a control unit that controls the temperature in the cooler. And such a cooling device cools a container with the cold air in a refrigerator by controlling the temperature in a refrigerator with a control means in the state where the container was stored in a refrigerator, and the liquid drink in a container is made. Make it supercooled.

  In such a cooling device, if the liquid beverage in the container is rapidly supercooled, the cool air in the refrigerator is disturbed and the temperature in the refrigerator becomes non-uniform. For this reason, depending on the installation position of the object to be cooled and the shape of the object to be cooled, it becomes difficult to cool the container uniformly throughout (that is, a temperature difference tends to occur in the container). As a result, it becomes difficult to bring the liquid beverage in the container into a supercooled state.

  On the contrary, if the container is cooled very slowly, it is possible to prevent the turbulence of the cold as described above, and the container can be uniformly cooled throughout. Therefore, the liquid beverage in the container can be brought into a supercooled state. However, in this case, it takes too much time to bring the liquid into a supercooled state, and the convenience (usability) of the cooling device deteriorates.

JP-A-10-9739

  An object of the present invention is to provide a cooler capable of quickly and surely bringing a liquid contained in a container into a supercooled state with a simple configuration.

Such an object is achieved by the present invention described below.
(1) a casing;
A soft cup provided inside the casing and capable of storing a container containing a liquid;
A cooling medium filled in a space formed between the soft cup and the inner wall of the casing;
Cooling means for cooling the cooling medium,
In a state where the container is housed in the soft cup, the cooling medium is cooled by the cooling means, and the container is cooled by the cooling medium through the soft cup, so that the container is below the freezing point of the liquid. And storing the liquid in a supercooled state in which the liquid remains unfrozen.

  (2) The refrigerator according to (1), wherein the cooling medium is an antifreeze liquid having a freezing point lower than the freezing point of the liquid.

  (3) The refrigerator according to (1) or (2), wherein at least a part of the casing has a heat insulating property.

  (4) The cooling unit according to any one of (1) to (3), wherein the cooling unit includes a Peltier element disposed on a wall portion of the casing.

  (5) The said Peltier device is a refrigerator as described in said (4) arrange | positioned so that the heat absorption surface of the said Peltier device may be located inside the said casing, and a heat generating surface may be located outside the said casing.

  (6) The cooling according to (5), wherein the casing includes a heat transfer portion having thermal conductivity provided so as to be in contact with the cooling medium, and the heat absorption surface is in contact with the heat transfer portion. Warehouse.

  (7) The refrigerator according to any one of (4) to (6), wherein a heat sink is provided on the heat generating surface.

(8) A refrigerator used by being stored in a freezer,
A casing having thermal conductivity;
A soft cup provided inside the casing and capable of storing a container containing a liquid;
A cooling medium filled in a space formed between the soft cup and the inner wall of the casing;
The container is stored in the freezer in a state where the container is housed in the soft cup, the cooling medium is cooled via the casing by the cold air in the freezer, and the container is stored via the soft cup by the cooling medium. A cooling box characterized by storing the container in a supercooled state in which the liquid is maintained at an unfrozen state at a temperature below the freezing point of the liquid by cooling.

  (9) The said casing is a refrigerator as described in said (8) comprised with the material whose heat conductivity is 1.2 W / (m * k) or more.

  (10) When the temperature of the liquid is equal to or lower than the freezing point of the liquid, any one of the above (1) to (9) configured to cool the liquid so that a temperature difference in the liquid hardly occurs The refrigerator as described in Crab.

  (11) The liquid is cooled so that Tmax−Tmin satisfies 1 ° C. or less, where Tmax is the temperature of the highest temperature portion of the liquid beverage and Tmin is the temperature of the lowest temperature portion. The refrigerator as described in said (10) comprised.

  (12) The refrigerator according to any one of (1) to (11), further including an adhesion unit that closely contacts an inner surface of the soft cup with an outer surface of the container.

(13) having a lid for opening and closing the opening of the soft cup;
The said close_contact | adherence means is a refrigerator as described in said (12) comprised so that it might operate | move in response to opening and closing of the said cover body.

  (14) When the lid body is in a closed state covering the opening, the contact means is in a close contact state in which the inner surface of the soft cup is in close contact with the outer surface of the container, and the lid body opens the opening. The refrigerator as described in said (13) comprised so that the said close_contact | adherence state may be cancelled | released at the time.

(15) defining a part of the space and having a deformable portion that can be deformed or displaced toward the inside of the space;
The contact means includes a pressing member that is provided on the lid and presses the deforming portion. When the pressing member is in the closed state, the pressing member presses the deforming portion toward the inside of the space. The volume of the space is reduced and the internal pressure in the space is increased, whereby the soft cup is deformed to correspond to the outer shape of the container housed in the soft cup, and the inner surface of the soft cup The cooler according to (14), wherein the cooler is configured to be in close contact with the outer surface of the container.

(16) The contact means includes a reservoir tank that communicates with the space, stores the cooling medium, and a supply means that supplies the cooling medium in the reservoir tank to the space.
By operating the supply means to supply the cooling medium into the space, the amount of the cooling medium in the space is increased and the internal pressure in the space is increased, whereby the soft cup is Any one of (12) to (14), wherein the container is deformed so as to correspond to the outer shape of the container housed in a soft cup, and the inner surface of the soft cup is in close contact with the outer surface of the container. The listed refrigerator.

  (17) The refrigerator according to any one of (1) to (16), further including a stirring unit that stirs the cooling medium.

  (18) The refrigerator according to (17), wherein the stirring unit is configured to generate a swirling flow along an outer peripheral surface of the soft cup and / or a convection along an axial direction of the soft cup. .

(19) The casing has a box-shaped main body,
The said stirring means is a refrigerator as described in said (17) or (18) provided with the stirring blade arrange | positioned near the bottom part of the said casing.

  (20) The refrigerator according to any one of (1) to (19), including at least one temperature detection element that detects the temperature of the cooling medium.

  (21) The refrigerator according to any one of (1) to (20), wherein the liquid is a beverage.

(22) The refrigerator according to any one of (1) to (20), wherein the liquid is a body fluid.
(23) The refrigerator according to (22), wherein the body fluid is blood.

  (24) The refrigerator according to any one of (1) to (20), wherein the liquid is a storage solution.

  (25) The refrigerator according to (24), wherein the storage solution is a storage solution for storing biological tissue.

  According to the present invention, the container in which the liquid is placed can be uniformly cooled over the whole by the cooling medium cooled by the cooling means. For this reason, the liquid placed in the container can be brought into a supercooled state quickly and reliably with a simple configuration.

  Further, when the casing has a heat insulating property, heat exchange between the outside of the casing and the inside of the casing (that is, the space filled with the cooling medium) can be suppressed, and the cooling means The cooling medium can be efficiently cooled.

  In addition, when the refrigerator is provided with a close contact means, the inner surface of the soft cup can be brought into close contact with the outer surface of the container regardless of the size and shape of the container, so that the entire container is substantially uniform by the cooling medium. Can be cooled to.

  Moreover, when the cooling cabinet is provided with the stirring means, the cooling medium can be rapidly cooled by the cooling means while preventing the occurrence of temperature unevenness in the cooling medium.

  Moreover, when the refrigerator is provided with the temperature detection element, the temperature of the cooling medium can be detected, and the cooling means can be driven based on the detection result. Therefore, the temperature of the cooling medium can be maintained at a predetermined temperature, and the container can be cooled more quickly and reliably.

  Hereinafter, preferred embodiments of the refrigerator of the present invention will be described in detail with reference to the accompanying drawings.

<First Embodiment>
First, a first embodiment of the refrigerator of the present invention will be described.

  1 is a schematic overall view of the refrigerator of the present invention, FIG. 2 is a schematic longitudinal sectional view of the refrigerator shown in FIG. 1, FIG. 3 is a sectional view taken along line AA in FIG. 2, and FIG. The figure which shows the operation state of the contact | adherence means with which the refrigerator shown in FIG. 2 is provided, FIG. 5 is a block diagram of the refrigerator shown in FIG. In the following description, the upper side in FIGS. 2 and 4 is referred to as “upper”, the lower side as “lower”, the right side as “right”, and the left side as “left”.

  As shown in each figure, the refrigerator 1 includes a casing 2 having a main body 21, a soft cup 3 provided inside the main body 21 and capable of storing a container P containing a liquid beverage, and an inner wall of the main body 21. A cooling medium Q filled in a space (cooling medium filling chamber) 4 formed between the soft cup 3, a cooling means 5 for cooling the cooling medium, an agitating means 6 for stirring the cooling medium, and the soft cup 3. Is provided with a close contact means 7 for tightly contacting the container P, a temperature detection means 8 for detecting the temperature of the cooling medium Q, and a control means 9 for controlling the operation of the refrigerator 1.

  Such a refrigerator 1 is a state in which the container P is accommodated in the soft cup 3 (hereinafter simply referred to as “accommodated state”), and the temperature of the container P is equal to or lower than the freezing point of the liquid beverage placed in the container P. And it is comprised so that a liquid drink may be preserve | saved in the supercooled state which maintains unfrozen.

  When the container P stored in the supercooled state is taken out from the refrigerator 1 and subjected to vibration, impact, or poured into a cup, the liquid beverage instantly freezes in a sherbet shape.

  The container P is not particularly limited. For example, a resin container (pet bottle) made of PET, or a metal container (aluminum can, steel can, etc.) made of aluminum, steel, or the like. Alternatively, a glass container (glass bottle), a paper container (paper pack), or the like can be used. In the present embodiment, as an example, a plastic bottle will be described as an example.

  Moreover, as a capacity | capacitance of the container P, although it does not specifically limit, it is preferable that it is 80-1000 ml, and it is more preferable that it is 100-600 ml.

  The liquid that can be put in the container P is not particularly limited. For example, soft drinks such as teas (oolong tea, green tea, etc.), coffees, mineral water, sports drinks, lactic acid drinks (milk, etc.), sparkling wine, beer And alcoholic beverages such as wine, sake and shochu. The freezing point of the soft drink as described above is about −9 to −4 ° C., and the freezing point of the alcoholic beverage is about −15 to −12 ° C.

Hereinafter, the configuration of the refrigerator 1 will be described.
The casing 2 includes a main body 21, a middle plate 23 provided so as to cover the upper opening of the main body 21, and a lid body 22 that opens and closes the upper opening (opening 311) of the soft cup 3.

  As shown in FIG. 2, the main body 21 includes a bottom plate 215 and side walls 218 that stand up from the edge of the bottom plate 215. That is, the main body 21 has a box shape. Moreover, the cross-sectional shape of the main body 21 is substantially circular. Further, an enlarged diameter portion 214 having an enlarged inner diameter is formed near the upper opening of the side wall 218 of the main body 21. An intermediate plate 23 is provided in such an enlarged diameter portion 214.

  A window 211 for installing the cooling means 5 is formed on the side wall 218 of the main body 21. The window 211 is provided with a heat transfer plate (heat transfer part) 212 so as to close the window 211. A motor storage portion 213 in which a motor 64 described later is stored is provided below the window portion 211.

  Such a main body 21 has a heat insulating property. Thereby, heat exchange between the outside of the main body 21 and the inside of the cooling medium filling chamber 4 can be suppressed, and the cooling medium Q can be efficiently cooled by the cooling means 5.

  As such a main body 21, for example, the main body 21 may have a heat insulating property by being formed of a material having a heat insulating property, and the main body 21 is provided with a heat insulating layer formed of a foam or the like. It may have heat insulation properties, or it may have heat insulation properties by providing a vacuum hollow layer in the main body 21 (that is, by using a thermos bottle structure).

  When the main body 21 is made of a material having heat insulation properties, the material having heat insulation properties is not particularly limited. For example, various glasses, oxide ceramics such as alumina, silica, titania, silicon nitride, nitridation, etc. Nitride ceramics such as aluminum, titanium nitride and boron nitride, carbide ceramics such as graphite and tungsten carbide, polyolefins such as polyethylene, polypropylene and ethylene-propylene copolymer, polyvinyl chloride, polystyrene, polyamide, polyimide, Polycarbonate, poly- (4-methylpentene-1), ionomer, acrylic resin, polymethyl methacrylate, acrylonitrile-butadiene-styrene copolymer (ABS resin), acrylonitrile-styrene copolymer (AS resin), butadiene-s Rene copolymer, Polyester such as polyethylene terephthalate (PET), Polybutylene terephthalate (PBT), Polyether, Polyetherketone (PEK), Polyetheretherketone (PEEK), Polyetherimide, Polyacetal (POM), Polyphenylene oxide , Polysulfone, polyethersulfone, polyphenylene sulfide, polyarylate, aromatic polyester (liquid crystal polymer), polytetrafluoroethylene, polyvinylidene fluoride, other fluorine resins, epoxy resins, phenol resins, urea resins, melamine resins, silicone resins , Polyurethane, etc., or copolymers, blends, polymer alloys, etc. mainly composed of these, and one or more of these may be used in combination. Can.

  Among these, the main body 21 is preferably made of a material having a thermal conductivity of 20 W / (m · k) or less. Thereby, the main body 21 can exhibit the outstanding heat insulation, ensuring mechanical strength.

  The heat transfer plate 212 has thermal conductivity. In the heat transfer plate 212, the edge of the right surface 212 b in FIG. 2 is fixed to the side wall 218 of the main body 21 via the seal member 241.

  Further, the heat transfer plate 212 is provided such that the left surface 212a in FIG. 2 faces the cooling medium filling chamber 4 and the right surface 212b in FIG. 2 abuts a Peltier element 51 described later.

  The constituent material of the heat transfer plate 212 is not particularly limited as long as it has thermal conductivity. For example, various metals such as iron, stainless steel, aluminum or aluminum alloy, copper or copper alloy, and heat A resin material having excellent thermal conductivity such as a conductive resin can be used.

  Among these, the heat transfer plate 212 is preferably made of a material having a thermal conductivity of 10 W / (m · k) or more. Thereby, the Peltier element 51 can efficiently take the heat of the cooling medium Q via the heat transfer plate 212, and can cool the cooling medium Q efficiently.

  The motor storage portion 213 is provided below the window portion 211. A storage space for storing the motor 64 is formed inside the motor storage portion 213.

  The lid body 22 is connected to the main body 21 via a connector 25 that supports the lid body 22 so as to be rotatable with respect to the main body 21. Hereinafter, for convenience of explanation, a state in which the opening 311 of the soft cup 3 is covered by the lid 22 is referred to as a “closed state”, and the lid 22 is separated from the opening 311 of the soft cup 3, and the opening 311 is The open state is called “open state”.

The lid body 22 has a substantially circular shape in plan view.
An annular sealing member 222 made of a rubber material such as silicone rubber is provided on the back surface 221 of the lid 22 (that is, the surface facing the inside of the main body 21 in the closed state). When the refrigerator 1 is in a closed state, the lid 22 and the main body 21 are in close contact with each other via the sealing member 222, and the inside of the casing 2 is hermetically sealed.

  Further, on the back surface 221 of the lid body 22, a rod-shaped pressing member 71 that protrudes in the normal direction of the back surface 221 is provided. This pressing member 71 constitutes a part of the contact means 7. The contact means 7 will be described in detail later.

  The lid 22 has a heat insulating property. Thereby, when the refrigerator 1 is closed, heat exchange between the outside of the lid 22 and the cooling medium filling chamber 4 can be suppressed, and the cooling medium 5 is efficiently cooled by the cooling means 5. be able to.

  Such a lid 22 is made of, for example, a material having a heat insulating property similar to that of the main body 21.

  The middle plate 23 is circular in plan view. Further, the diameter of the intermediate plate 23 is substantially equal to the diameter of the enlarged diameter portion 214. Such an intermediate plate 23 is fitted to the enlarged diameter portion 214 and is fixed to the main body 21 via a seal member 242.

Two through holes 231 and 232 are formed in the intermediate plate 23.
The through hole 231 is formed at the center of the intermediate plate 23. The through hole 231 has a substantially circular shape. Such a through hole 231 is a hole for storing the container P in the soft cup 3. In addition, as formation conditions, such as a magnitude | size and a shape of the through-hole 231, if the container P can be penetrated and it can accommodate in the soft cup 3, it will not be limited to this.

  Further, the through hole 232 is formed at a position corresponding to the pressing member 71 when the refrigerator 1 is in the closed state. Further, the through hole 232 has an oval shape extending in the radial direction of the intermediate plate 23. Such a through hole 232 is a hole for preventing contact between the pressing member 71 and the intermediate plate 23. In addition, as formation conditions, such as a magnitude | size and a shape of the through-hole 232, if it can prevent that the press member 71 contacts the intermediate | middle board 23, it will not be limited to this.

  The constituent material of the intermediate plate 23 is not particularly limited, and for example, the constituent material constituting the main body 21 (excluding the heat transfer plate 212) as described above can be used.

  The soft cup 3 is provided on the lower side of the intermediate plate 23 as described above, that is, in the space formed by the lower surface of the intermediate plate 23 and the inner wall of the main body 21.

  As shown in FIG. 2, the soft cup 3 includes a bottomed cylindrical cup portion 31 that accommodates the container P, and a flange-shaped edge portion 32 that extends in the radial direction from the outer peripheral surface near the opening 311 of the cup portion 31. It consists of and. Such a cup part 31 and the edge part 32 are integrally formed.

The cup portion 31 is disposed concentrically with the main body 21. Further, the cup portion 31 is disposed in a non-contact manner with the inner wall surface of the main body 21. Further, the cup portion 31 is disposed so that the opening 311 corresponds to the through hole 231. Moreover, the cross-sectional shape of the cup part 31 is substantially circular.
Such a cup portion 31 is suspended from the main body 21 by the edge portion 32.

  The edge portion 32 has an outer diameter slightly smaller than that of the intermediate plate 23. And the upper surface of the edge part 32 is joined to the lower surface of the intermediate | middle board 23 via the adhesive agent, for example.

  The edge portion 32 closes the through hole 232 of the intermediate plate 23. The closed portion, that is, the portion corresponding to the through-hole 232 of the edge portion 32 is pressed by the pressing member 71 when the refrigerator 1 is in the closed state, so that it faces downward in FIG. The deformation part 321 to be deformed is configured.

  The soft cup 3 as described above has flexibility. Thereby, the container P can be easily accommodated in the cup portion 31 regardless of the shape of the container P. Further, the deformable portion 321 can be easily elastically deformed by the pressing of the pressing member 71.

The soft cup 3 has flexibility.
Such a soft cup 3 is made of, for example, a flexible material. The material having flexibility is not particularly limited. For example, polyester resin such as soft polyvinyl chloride, polyethylene, polypropylene, polyethylene terephthalate (PET), polybutylene terephthalate, polyurethane thermoplastic elastomer, polyester heat A combination of one or more of various elastomers such as a plastic elastomer, polyolefin-based thermoplastic elastomer, polyamide-based thermoplastic elastomer, polystyrene-based thermoplastic elastomer, fluorine-based thermoplastic elastomer, silicone rubber, latex rubber ( For example, it can be used as a laminate.

  The configuration of the soft cup 3 is not limited to this. For example, the cup portion 31 and the deformable portion 321 may be formed as separate bodies, and the cross-sectional shape of the cup portion 31 is a polygon. May be.

  A cooling medium filling chamber 4 is formed by the soft cup 3 and the inner wall of the main body 21. The cooling medium filling chamber 4 is filled with a cooling medium Q. The cooling medium Q is not particularly limited as long as the liquid beverage L can be cooled below the freezing point of the liquid beverage L. For example, a mixed solution of ethylene glycol, a mixed solution of ethylene alcohol, or the like can be suitably used. .

  Among these, the cooling medium Q is preferably an antifreeze liquid having a freezing point lower than the freezing point of the liquid (liquid beverage L) contained in the container P. It is possible to prevent the cooling medium Q from solidifying in the process of supercooling the liquid.

  In particular, the cooling medium Q of the present embodiment is preferably an antifreeze liquid having a freezing point of −25 ° C. or lower. Here, as described above, the freezing point of the alcoholic beverage is about −15 to −12 ° C., and the freezing point of the soft drink is about −9 to −4 ° C. That is, the freezing point of the antifreeze is lower than the freezing points of the alcoholic beverage and the soft drink. Therefore, by using the antifreeze liquid as the cooling medium Q, the cooling medium Q is prevented from solidifying in the process of supercooling the liquid drink L regardless of the type of the liquid drink L put in the container P. be able to. As a result, the liquid beverage L can be more reliably supercooled.

Further, the cooling medium Q may be liquid or jelly-shaped.
When the cooling medium Q is jelly-like, the viscosity of the cooling medium Q is preferably 30 (pa · s) at −20 ° C. Thereby, the cooling medium Q can be effectively stirred by the stirring means 6, and the occurrence of temperature unevenness in the cooling medium Q can be suppressed.
Such a cooling medium Q is cooled by the cooling means 5.

  As shown in FIG. 2, the cooling means 5 includes a Peltier element 51 that contacts the heat transfer plate 212 and a heat sink 52 that contacts the Peltier element 51.

  The Peltier element 51 has a plate shape, and when energized, one surface exhibits an endothermic effect (this surface is referred to as an “endothermic surface”), and the other surface exhibits an exothermic effect (this surface is referred to as an “exothermic surface”). It is a cooling element. By using such a cooling element, the cooling medium Q can be cooled with a simple configuration.

  The Peltier element 51 is disposed so that the heat absorption surface 512 faces the cooling medium filling chamber 4 and the heat generation surface 511 faces the outside of the main body 21. Such a Peltier element 51 is electrically connected to the control means 9 via the voltage application means 53 (see FIG. 5).

  The heat absorbing surface 512 is in contact with the heat transfer plate 212. Thereby, by driving the Peltier element 51, heat can be taken from the cooling medium Q via the heat transfer plate 212, and the cooling medium Q can be cooled.

  On the other hand, the heat generating surface 511 is in contact with the heat sink 52. The heat sink 52 has a function of efficiently radiating heat generated on the heat generating surface 511 and lowering the temperature of the heat generating surface 511. By efficiently radiating the heat generated on the heat generation surface 511, the heat absorption effect of the heat absorption surface 512 can be improved.

  The heat sink 52 is exposed to the outside of the main body 21. Thereby, the heat generated on the heat generating surface 511 can be efficiently radiated to the outside of the refrigerator 1.

Note that the shape of the heat sink 52 is not particularly limited, and for example, a plurality of fins protruding toward the outside of the refrigerator 1 may be formed. Thereby, the surface area which faces the exterior of the refrigerator 1 can be made comparatively large, and the heat dissipation effect improves.
The cooling medium Q cooled by the cooling means 5 is stirred by the stirring means 6.

As shown in FIG. 2, the stirring means 6 includes a stirring blade 61 provided between the bottom plate 215 of the main body 21 and the bottom portion 312 of the cup portion 31, a bevel gear 62 meshing with the stirring blade 61, and a shaft 63. And a motor 64 for rotating the bevel gear 62.
The stirring blade 61 is provided concentrically with the main body 21.

  As shown in FIGS. 2 and 3, the stirring blade 61 includes a cylindrical tubular portion 611, an annular annular portion 612 formed to surround the outer periphery of the tubular portion 611, and the tubular portion 611 and the annular shape. A plurality of blade portions 613 that connect the portion 612 are provided.

  A shaft member 614 is press-fitted inside the lower opening of the tubular portion 611. The shaft member 614 is rotatably supported by the main body 21 via a bearing 65 provided substantially at the center of the bottom plate 215 of the main body 21. Thereby, the stirring blade 61 can rotate around the X axis in FIG.

  A plurality of holes 615 that communicate the inside and the outside of the tubular portion 611 are formed in the side wall of the tubular portion 611. Each of the plurality of holes 615 is formed below the blade portion 613.

The annular portion 612 has a diameter slightly smaller than the diameter of the inner wall of the main body 21. A gear 616 that meshes with the bevel gear 62 is formed at the lower portion of the annular portion 612.
The plurality of blade portions 613 are arranged at equiangular intervals in the circumferential direction of the stirring blade 61.

  The bevel gear 62 is fixed to a shaft 63 provided so as to penetrate the side wall 218 of the main body 21, and the driving force of the motor 64 is transmitted through the shaft 63.

  The motor 64 is electrically connected to the control means 9 via a motor driver 66 (see FIG. 5).

  When the stirring blade 61 rotates, a convection Q1 and a swirl flow Q2 as shown in FIG. 2 are generated. Thereby, the cooling medium Q can be stirred efficiently and it can suppress effectively that the temperature nonuniformity arises in the cooling medium Q. As a result, the container P accommodated in the cup part 31 can be cooled substantially uniformly throughout.

  Moreover, if it is possible to suppress the occurrence of temperature unevenness in the cooling medium Q, the cooling rate of the cooling medium Q by the cooling means 5 can be increased. Therefore, the cooling medium Q can be cooled more quickly.

  More specifically, regarding the convection Q1 and the swirl flow Q2, when the stirring blade 61 rotates, the cooling medium Q in the vicinity of the outer peripheral surface of the cup portion 31 flows upward. The cooling medium Q that has flowed upward collides with the edge 32 and changes its direction, and flows downward along the inner surface of the side wall 218 of the main body 21. The cooling medium Q that has flowed downward collides with the bottom plate 215 of the main body 21, changes its direction, and enters between the stirring blade 61 and the bottom plate 215. The cooling medium Q that has entered between the stirring blade 61 and the bottom plate 215 flows upward through the gap formed between the plurality of blade portions 613.

  Part of the cooling medium Q that flows upward through the gap collides with the bottom 312 of the cup portion 31 and changes its direction, and flows from the upper opening of the tubular portion 611 to the inside of the tubular portion 611. To do. The cooling medium Q circulated inside the cylindrical portion 611 flows from the plurality of holes 615 to between the stirring blade 61 and the bottom plate 215. The cooling medium Q that has entered between the stirring blade 61 and the bottom plate 215 flows upward through the gap formed between the plurality of blade portions 613. In this way, convection Q1 is generated.

  On the other hand, when the stirring blade 61 rotates, the cooling medium Q rises while turning along the outer periphery of the cup portion 31. Thereby, the swirl flow Q2 is generated.

  The stirring means 6 is not particularly limited as long as the cooling medium Q can be stirred. For example, the shape, size, and number of the stirring blades 61 are not limited. You may provide the baffle plate etc. which arrange a flow.

  Further, in the cooling medium filling chamber 4, temperature detecting means 8 for detecting the temperature of the cooling medium Q is provided.

  The temperature detection means 8 has a pair of temperature detection elements 81 and 82 provided on the inner wall of the side wall 218 of the main body 21. The temperature detecting elements 81 and 82 are not particularly limited as long as the temperature of the cooling medium Q can be detected, and for example, a thermistor or the like can be used.

  As shown in FIG. 2, the temperature detection element 81 is an inner wall of the side wall 218 and is provided above the heat transfer plate 212. Such a temperature detection element 81 is fitted in a recess 216 formed on the inner wall of the side wall 218.

  On the other hand, the temperature detection element 82 is an inner wall of the side wall 218 and is provided on the opposite side of the temperature detection element 81 and in the vicinity of the bottom plate 215. That is, the temperature detection element 82 is provided as far as possible from the temperature detection element 81. Such a temperature detection element 82 is fitted in a recess 217 formed on the inner wall of the side wall 218.

  Such temperature detecting elements 81 and 82 are each electrically connected to the control means 9 (see FIG. 5). Then, the determination unit 93 included in the control unit 9 determines the temperature of the cooling medium Q and the presence or absence of temperature unevenness of the cooling medium Q based on the signals from the temperature detection elements 81 and 82.

  Here, since the temperature detection elements 81 and 82 are provided so as to be separated from each other as much as possible, it is possible to accurately determine whether or not the temperature unevenness occurs in the cooling medium Q.

  The temperature detection element 81 is provided in the vicinity of the heat transfer plate 212, whereas the temperature detection element 82 is provided at a position separated from the heat transfer plate 212. Therefore, the temperature of the cooling medium Q at a position where the cooling medium Q is easily cooled can be compared with the temperature of the cooling medium Q at a position where the cooling medium Q is difficult to cool. Thereby, it can be judged very accurately whether or not the temperature unevenness occurs in the cooling medium Q.

  Next, based on FIG. 4, the contact means 7 for bringing the inner surface 313 of the cup portion 31 into close contact with the outer surface P1 of the container P will be described.

  The contact means 7 includes the pressing member 71 provided on the back surface 221 of the lid 22 as described above.

  The pressing member 71 has a rod shape and is provided so as to extend in the normal direction of the back surface 221. Further, the tip of the pressing member 71 is rounded. Further, the length of the pressing member 71 is longer than the separation distance between the back surface 221 of the lid 22 and the lower surface of the intermediate plate 23 when the refrigerator 1 is in the closed state. Moreover, the cross-sectional shape of the pressing member 71 is substantially circular.

  The constituent material of the pressing member 71 is not particularly limited, and may be made of the same material as that of the lid body 22, for example. The pressing member 71 may be formed integrally with the lid body 22 or may be formed as a separate body.

  When the refrigerator 1 is in the closed state, the pressing member 71 passes through the through hole 232 of the intermediate plate 23 and presses the deforming portion 321 downward in FIG. Thereby, the deformation | transformation part 321 deform | transforms toward the inner side of the cooling-medium filling chamber 4, the volume of the cooling-medium filling chamber 4 reduces by the deformation | transformation, and the internal pressure in the cooling-medium filling chamber 4 is raised. When the internal pressure in the cooling medium filling chamber 4 increases, the cup part 31 is pressed toward the inside of the cup part 31 (that is, the container P side) by the cooling medium Q. As a result, the cup portion 31 is deformed so as to correspond to the outer shape of the container P, and thus the inner surface 313 of the cup portion 31 is in close contact with the outer surface P1 of the container P (this state is also referred to as “contact state”).

  By bringing the inner surface 313 of the cup part 31 into close contact with the outer surface P1 of the container P, the container P can be uniformly cooled throughout the cup part 31 by the cooling medium Q.

  Further, when the refrigerator 1 is changed from the closed state to the open state, the deformable portion 321 is released from the pressing by the pressing member 71 and restored. Thus, contrary to the above, the contact state is released. Therefore, the container P can be easily taken out from the cup portion 31.

  Thus, the contact means 7 is configured to operate in conjunction with opening and closing of the lid body 22. Thereby, if the refrigerator 1 is made into a closed state, it can be made into a close_contact | adherence state automatically and simplification of an operation procedure can be aimed at. Further, it is possible to prevent the user from forgetting to operate the contact means 7.

  According to the contact means as described above, the inner surface 313 of the cup portion 31 can be brought into close contact with the outer surface P1 of the container P regardless of the size and shape of the container P.

  In addition, as such close_contact | adherence means 7, it is comprised so that the length (namely, distance of the front-end | tip of the press member 71 and the back surface 221 of the cover body 22) of the press member 71 can be adjusted, for example. Also good. As such a configuration, for example, the pressing member 71 is combined with the lid body 22, and the length of the pressing member 71 is adjusted by rotating the pressing member 71 in a predetermined direction. Also good. Moreover, even when the refrigerator 1 is in a closed state, the pressing member 71 may be configured to be rotated from the outside of the refrigerator 1.

  In such a case, the contact means 7 can adjust the deformation amount of the deformation portion 321 by appropriately changing the length of the pressing member 71 according to the size and shape of the container P. That is, the contact means 7 can adjust the pressing force (pressing force) of the deforming portion 321 by the pressing member 71. As a result, the inner surface 313 of the cup portion 31 can be securely adhered to the outer surface P1 of the container P regardless of the size and shape of the container P, and the internal pressure of the cooling medium filling chamber 4 becomes excessively high. Can be prevented.

Next, the control means 9 for controlling the operation of the refrigerator 1 will be described with reference to FIG.
The control unit 9 includes a control unit 91, a transmission unit 92 that outputs a drive signal to each of the voltage application unit 53, the motor driver 66, and the pair of temperature detection elements 81 and 82 according to a command from the control unit 91, and temperature detection Based on signals from the elements 81, 82, a determination unit 93 is provided for determining the temperature of the cooling medium Q and the presence or absence of temperature unevenness of the cooling medium Q.

  Such a control unit 9 is electrically connected to the operation unit 11, the notification unit 12, the motor driver 66, the voltage application unit 53, and the temperature detection elements 81 and 82.

  The operation unit 11 selects a power switch 111 for turning on the main power, a start switch 112 for operating the control means 9, and a selection for selecting whether the liquid beverage placed in the container P is an alcoholic beverage or a soft drink. And a switch 113. When the start switch 112 is turned on while the power switch 111 is turned on, the control means 9 operates.

  The notification means 12 notifies the user that the container P is stored in a supercooled state. This notification means 12 is, for example, a light emitting element such as an LED. By providing such a notification means 12, the user can surely recognize that the container P is in a supercooled state. For example, even though the container P is not in a supercooled state, It is possible to prevent the container P from being taken out by opening the refrigerator 1.

The control means 9 operates as follows.
After the main power is turned on by the power switch 111, the type of the liquid beverage L is selected by the selection switch 113. Then, the control means 9 is operated by the start switch 112.

  When the control unit 9 is activated, a drive signal is output from the transmission unit 92 to each of the motor driver 66 and the voltage application unit 53 according to a command from the control unit 91. Thereby, driving of the Peltier element 51 and the motor 64 is started. At this time, the control unit 91 differs depending on information from the selection switch 113 (that is, whether the liquid beverage L is an alcoholic beverage or a soft drink) (for example, the rotational speed of the motor 64 and the Peltier element 51). Voltage applied to the transmitter 92 and the like.

  When the driving of the Peltier element 51 and the motor 64 is started, the cooling medium Q is stirred by the stirring blade 61 while being cooled by the Peltier element 51. As a result, the cooling medium Q is cooled evenly as a whole.

  On the other hand, when the control unit 9 is activated, signals are input from the temperature detection elements 81 and 82 to the determination unit 93. Then, the determination unit 93 determines the temperature of the cooling medium Q and the presence or absence of temperature unevenness of the cooling medium Q based on signals (current value changes) from the temperature detection elements 81 and 82.

  For example, the determination unit 93 determines that the average value of the temperature of the cooling medium Q detected by the temperature detection element 81 and the temperature of the cooling medium Q detected by the temperature detection element 82 is the temperature of the cooling medium Q. .

  For example, the determination unit 93 performs cooling when the temperature difference between the temperature of the cooling medium Q detected by the temperature detection element 81 and the temperature of the cooling medium Q detected by the temperature detection element 82 exceeds a threshold value. It is determined that the medium Q has temperature unevenness. The threshold value is stored in advance in a storage unit (ROM) (not shown) included in the determination unit 93, for example. Such a threshold value is not particularly limited, but is preferably 0.05 to 1 ° C., and more preferably 0.05 to 0.5 ° C., for example.

  The determination unit 93 outputs information related to the temperature of the cooling medium Q determined as described above and the presence or absence of temperature unevenness of the cooling medium Q (hereinafter referred to as “temperature information”) to the control unit 91. The control unit 91 having obtained the temperature information from the determination unit 93 gives an instruction to the transmission unit 92 based on the information.

  For example, the controller 91 has a temperature of the cooling medium Q near the freezing point of the liquid beverage L (for example, when the alcoholic beverage is selected by the selection switch 113, the soft drink is selected at -15 to -12 ° C. In this case, the transmitter 92 is instructed to turn on / off the driving of the Peltier element 51 so as to maintain a temperature of −9 to −4 ° C. (so-called ON / OFF control). Thereby, the liquid beverage L can be supercooled quickly and reliably.

  In addition, for example, when the temperature unevenness occurs in the cooling medium Q, the control unit 91 increases the rotation speed of the motor 64 (that is, the rotation speed of the stirring blade 61), and from the voltage application unit 53 to the Peltier element. The transmitter 92 is instructed to lower the voltage value applied to 51 and slow down the cooling rate of the cooling medium Q. Thereby, the temperature of the cooling medium Q can be made uniform throughout rapidly. As a result, the container P can be uniformly cooled throughout.

  When the control unit 91 determines that the container P is in a supercooled state, the control unit 91 operates the notification unit 12. As an operation of the notification means 12, for example, the LED is turned off when the container P is not in a supercooled state, and the LED is turned on when the container P is in a supercooled state.

  A method for determining whether or not the container P is in a supercooled state is not particularly limited. For example, the container P is in a supercooled state when a predetermined time elapses after the cooling medium Q reaches a predetermined temperature. You may judge that it became.

  As described above, the refrigerator 1 described above is configured to uniformly cool the entire container P. Thereby, the container P can be cooled so that the temperature difference in the liquid beverage L hardly arises. Thereby, the liquid beverage L in the container P can be quickly brought into a supercooled state.

  It is preferable to cool the container P so that Tmax−Tmin satisfies 0 to 1 ° C. or less, where Tmax is the temperature of the highest temperature portion of the liquid beverage L and Tmin is the temperature of the lowest temperature portion. It is more preferable to cool the container P so that Tmax−Tmin satisfies 0 to 0.5 ° C. or less. Thereby, the liquid beverage L in the container P can be subcooled more reliably.

  In addition, what is necessary is just to cool the container P so that the temperature difference in the liquid beverage L may hardly arise when the temperature of the liquid beverage L is below the freezing point of the liquid beverage L, and the temperature of the liquid beverage L is the said liquid beverage L. When it is higher than the freezing point, a relatively large temperature difference (for example, 1 to 2 ° C.) may occur in the liquid beverage L.

Next, the usage method of the refrigerator 1 is demonstrated.
[1] First, the user opens the refrigerator 1 and stores the container P in the cup portion 31 of the soft cup 3. And the refrigerator 1 is made into a closed state, and the cover body 22 and the main body 21 are fixed with the fixing tool which is not shown in figure. In this state, after the power switch 111 is pressed, the start switch 112 is pressed. Then, the control means 9 operates.

  [2] Cooling and stirring of the cooling medium Q is started by the control means 9 as described above. In this state, it is left for several hours (for example, about 2-3 hours). When a predetermined time has elapsed, the LED is turned on, and the user is notified that the liquid beverage L is stored in a supercooled state.

  [3] The user who recognizes this opens the refrigerator 1 in an open state. And the container P in which the liquid drink L was preserve | saved in the supercooled state is taken out from the cup part 31. FIG.

The refrigerator 1 is used as described above.
In the present embodiment, the type of the liquid beverage L (alcoholic beverage or soft drink) is selected using the selection switch 113, and the target temperature of the cooling medium Q is changed based on the selected type of the liquid beverage L. (As described above, when an alcoholic beverage is selected, it is −15 to −12 ° C., and when a soft drink is selected, −9 to −4 ° C.), It is not limited. For example, the user may arbitrarily configure the temperature of the cooling medium Q. In this case, the control unit 91 controls the operation of the Peltier element 51 (and the operation of the motor 64 together) so as to keep the temperature of the cooling medium Q at the temperature set by the user. Therefore, for example, the user sets the temperature of the cooling medium Q to −15 to −12 ° C. when the liquid beverage L is an alcoholic beverage, and the temperature of the cooling medium Q when the liquid beverage L is a soft drink. Is set to -9 to -4 ° C.

Second Embodiment
Next, 2nd Embodiment of the refrigerator of this invention is described.

  FIG. 6 is a schematic longitudinal sectional view showing a second embodiment of the refrigerator of the present invention, and FIG. 7 is a view showing an operating state of the contact means provided in the refrigerator shown in FIG. In the following, for convenience of explanation, the upper side in FIGS. 6 and 7 will be referred to as “upper”, the lower side as “lower”, the right side as “right”, and the left side as “left”.

  Hereinafter, the refrigerator 1A of the second embodiment will be described focusing on the differences from the above-described refrigerator 1 of the first embodiment, and description of similar matters will be omitted. The same reference numerals are given to the same components as those in the above-described embodiment.

  The refrigerator 1A according to the second embodiment of the present invention is substantially the same as the refrigerator 1 of the first embodiment described above except that the configuration of the intermediate plate and the configuration of the contact means are different.

  As shown in FIG. 6, a through hole 231 is formed in the intermediate plate 23A. The through hole 231 is a hole for accommodating the container P in the soft cup 3.

  As shown in FIG. 6, the contact means 7A is provided on the lower side of the main body 21 and supplies the cooling medium Q stored in the reservoir tank 71A and the cooling medium Q stored in the reservoir tank 71A to the cooling medium filling chamber 4. 72A for supplying and 72A of switches for operating supply means 72A in conjunction with opening and closing of the lid body 22 are provided.

  The outer shape of the reservoir tank 71A has a disk shape. The upper surface of the reservoir tank 71A is fixed to the bottom plate 215 of the main body 21 through an adhesive, for example. A cylindrical space 711A is formed in the reservoir tank 71A.

  The reservoir tank 71A and the bottom plate 215 of the main body 21 are provided with a cylindrical member 75A so that the space 711A and the cooling medium filling chamber 4 communicate with each other. Such a cylindrical member 75A is provided so as to communicate with the end of the space 711A.

  The supply means 72A has a gasket 721A inserted into the space 711A and a solenoid 722A that displaces the gasket 721A.

  The gasket 721A has a cylindrical shape. In addition, a pair of ring-shaped projecting portions 723A and 724A projecting in the radial direction of the gasket 721A are formed on the outer peripheral surface of the gasket 721A. The pair of protrusions 723A and 724A are formed with an interval in the axial direction of the gasket 721A (the left-right direction in FIG. 6).

  The gasket 721A is slidable with respect to the circumferential surface of the space 711A so as to be in pressure contact with the inner wall surface (the circumferential surface of the space 711A) of the reservoir tank 71A via a pair of ring-shaped protrusions 723A and 724A. Is provided. The space formed by the inner wall of the reservoir tank 71A and the gasket 721A is filled with the cooling medium Q.

  Such a gasket 721A is made of, for example, an elastic material such as silicone rubber.

  The solenoid 722A is provided in the space 711A. The solenoid 722A is connected to the gasket 721A via a rod 725A. When the solenoid 722A is driven, the gasket 721A moves in the left-right direction in FIG. 8 while sliding with the peripheral surface of the space 711A.

  The switch 73A is electrically connected to the solenoid 722A. Further, the switch 73A is provided so as to protrude upward from the upper surface of the main body 21 in FIG. The switch 73A is pressed by the lid body 22. The switch 73A is ON when the refrigerator 1A is closed, and is OFF when the refrigerator 1A is open.

The close contact means 7A having such a configuration operates as follows.
As shown in FIG. 6, when the refrigerator 1A is in the open state, the solenoid 722A houses the rod 725A. Therefore, the gasket 721A is located on the solenoid 722A side. At this time, the switch 73A is OFF.

  As shown in FIG. 7, when the refrigerator 1A is closed, the switch 73A is pushed by the lid 22 and the switch 73A is turned ON. Thereby, energization to the solenoid 722A is started, and the solenoid 722A pushes the rod 725A toward the left side in FIG. Along with this, the gasket 721A moves toward the left side in FIG. 7 while sliding with the peripheral surface of the space 711A. As a result, the cooling medium Q is pushed out from the reservoir tank 71A and supplied into the cooling medium filling chamber 4 via the cylindrical member 75A.

  When the cooling medium Q in the reservoir tank 71A is supplied into the cooling medium filling chamber 4, the amount of the cooling medium Q in the cooling medium filling chamber 4 increases and the internal pressure of the cooling medium filling chamber 4 is increased. Thereby, the cooling medium Q tries to displace the cup part 31 toward the inside of the cup part 31. As a result, the cup portion 31 is deformed so as to correspond to the outer shape of the container P, and the inner surface 313 of the cup portion 31 is in close contact with the outer surface P1 of the container P.

  According to the contact means 7A as described above, the inner surface 313 of the cup portion 31 can be brought into close contact with the outer surface P1 of the container P.

  The means for moving the gasket 721A is not limited to the solenoid 722A, and may be, for example, a fluid pressure cylinder (such as a hydraulic cylinder or a pneumatic cylinder) that moves the gasket 721A by fluid pressure, or manually by the user. The gasket 721A may be moved.

  Further, the contact means 7A may have, for example, an internal pressure detecting means for detecting the internal pressure of the cooling medium filling chamber 4. In this case, the contact means 7A supplies the cooling medium Q in the reservoir tank 71A into the cooling medium filling chamber 4 until the internal pressure detected by the internal pressure detection means reaches the set value, and the internal pressure becomes the set value. By the way, it is configured to maintain the amount of the cooling medium Q in the cooling medium filling chamber 4. Thus, the cup portion 31 can be reliably brought into close contact with the container P regardless of the size and shape of the container P, and the internal pressure of the cooling medium filling chamber 4 can be prevented from becoming excessively high. .

  According to the second embodiment as described above, the same effect as that of the refrigerator of the first embodiment can be exhibited.

<Third Embodiment>
Next, a third embodiment of the refrigerator of the present invention will be described.

  FIG. 8 is a schematic longitudinal sectional view showing a third embodiment of the refrigerator of the present invention, and FIG. 9 is a diagram showing an operating state of the contact means provided in the refrigerator shown in FIG. In the following, for convenience of explanation, the upper side in FIGS. 8 and 9 is referred to as “upper”, the lower side is referred to as “lower”, the right side is referred to as “right”, and the left side is referred to as “left”.

  Hereinafter, the refrigerator 1 </ b> B of the third embodiment will be described focusing on the differences from the above-described refrigerator 1 of the first embodiment, and description of similar matters will be omitted. The same reference numerals are given to the same components as those in the above-described embodiment.

  The refrigerator 1B according to the third embodiment of the present invention is substantially the same as the refrigerator 1 of the first embodiment described above except that the configuration of the intermediate plate and the configuration of the contact means are different.

  As shown in FIG. 8, a through hole 231 is formed in the intermediate plate 23B. The through hole 231 is a hole for accommodating the container P in the soft cup 3.

  As shown in FIG. 8, the contact means 7B is provided on the side of the cooling medium filling chamber 4, and a reservoir tank 71B for storing the cooling medium Q and the cooling medium Q stored in the reservoir tank 71B for the cooling medium filling chamber. 4 and a supply means 72B for supplying to the power supply 4.

The reservoir tank 71B is integrally formed with the main body 21.
The reservoir tank 71B has a bottomed cylindrical shape, and a cylindrical space 711B is formed inside. A communication hole 712B that connects the space 711B and the cooling medium filling chamber 4 is formed at the lower end of the reservoir tank 71B. In addition, a protrusion 713B that protrudes from the inner peripheral surface of the reservoir tank 71B toward the space 711B is formed at the center in the vertical direction in FIG. 8 of the reservoir tank 71B.

  The supply means 72B has a gasket 721B that can move in the vertical direction in FIG. 8 in the space 711B, a bar member 722B fixed to the gasket 721B, and a spring member 726B that biases the bar member 722B.

  The gasket 721B is provided below the projecting portion 713B in the space 711B. Such a gasket 721B has a cylindrical shape. A pair of ring-shaped projecting portions 723B and 724B projecting in the radial direction of the gasket 721B are formed on the outer peripheral surface of the gasket 721B. The pair of protrusions 723B and 724B are formed with an interval in the axial direction of the gasket 721B (vertical direction in FIG. 8).

  The gasket 721B is provided so as to be in pressure contact with the inner wall surface (the peripheral surface of the space 711B) of the reservoir tank 71B via a pair of protrusions 723B and 724B and to be slidable with respect to the inner wall surface of the reservoir tank 71B. It has been. The space formed by the inner wall surface of the reservoir tank 71B and the gasket 721A is filled with the cooling medium Q.

  Such a gasket 721B is made of an elastic material such as silicone rubber, for example.

  The bar member 722B is provided so as to extend in the vertical direction in FIG. The lower end portion of the bar member 722B is fixed to the gasket 721B, and the upper end portion protrudes from the space 711B.

  A diameter-enlarged portion 727B having an enlarged outer diameter is formed at the central portion in the length direction of the rod member 722B. A spring member 726B is provided between the enlarged diameter portion 727B and the protruding portion 713B. The spring member 726B urges the bar member 722B together with the gasket 721A upward in FIG.

The close contact means 7B having such a configuration operates as follows.
As shown in FIG. 8, when the refrigerator 1B is in the open state, the gasket 721B is urged upward in FIG. 8 by the spring member 726B together with the rod member 722B. Thereby, the gasket 721B contacts the lower surface of the protrusion 713B. In this state, the volume of the reservoir tank 71B is substantially maximum.

  As shown in FIG. 9, when the refrigerator 1 </ b> B is closed, the bar member 722 </ b> B is pressed downward in FIG. 9 by the back surface 221 of the lid 22. As a result, the gasket 721B moves downward in FIG. 9 while sliding with the inner wall surface of the reservoir tank 71B. As a result, the cooling medium Q in the reservoir tank 71B is supplied into the cooling medium filling chamber 4 through the communication hole 712B.

  When the cooling medium Q in the reservoir tank 71B is supplied into the cooling medium filling chamber 4, the amount of the cooling medium Q in the cooling medium filling chamber 4 increases and the internal pressure of the cooling medium filling chamber 4 is increased. As a result, the cooling medium Q tends to displace the cup portion 31 toward the outside of the cooling medium filling chamber 4. As a result, the cup portion 31 is deformed so as to correspond to the outer shape of the container P, and the inner surface 313 of the cup portion 31 is in close contact with the outer surface P1 of the container P.

  According to such close contact means 7 </ b> B, the inner surface 313 of the cup portion 31 can be brought into close contact with the outer surface P <b> 1 of the container P in conjunction with opening and closing of the lid body 22.

  In addition, as such close contact means 7B, for example, the length of the rod member 722B (that is, the length of the portion protruding from the space 711B of the rod member 722B) can be adjusted. Good. As such a configuration, for example, the rod member 722B is configured by two members connected by screwing, and one member (the member protruding from the space 711B) of the two members is used. The configuration may be such that the length of the bar member 722B is adjusted by rotating in a predetermined direction.

  In such a case, the close contact means 7B appropriately changes the length of the bar member 722B depending on the size and shape of the container P, whereby the amount of the cooling medium Q supplied to the cooling medium filling chamber 4 (that is, the cooling medium filling chamber) 4 internal pressure) can be adjusted. As a result, the inner surface 313 of the cup portion 31 can be securely adhered to the outer surface P1 of the container P regardless of the size and shape of the container P, and the internal pressure of the cooling medium filling chamber 4 becomes excessively high. Can be prevented.

  According to the third embodiment as described above, the same effect as that of the refrigerator 1 of the first embodiment can be exhibited.

<Fourth embodiment>
Next, 4th Embodiment of the refrigerator of this invention is described.

  FIG. 10 is a schematic longitudinal sectional view showing a fourth embodiment of the refrigerator of the present invention, FIG. 11 is a BB line bullet diagram in FIG. 10, and FIG. 12 is a close contact with the refrigerator shown in FIG. It is a figure which shows the operating state of a means. In the following, for convenience of explanation, the upper side in FIGS. 10 and 12 is referred to as “upper” and the lower side is referred to as “lower”.

  Hereinafter, 1 C of refrigerators of 4th Embodiment are demonstrated centering around difference with the refrigerator 1 of 1st Embodiment mentioned above, The description is abbreviate | omitted about the same matter. The same reference numerals are given to the same components as those in the above-described embodiment.

  The refrigerator 1C according to the fourth embodiment of the present invention is substantially the same as the refrigerator 1 of the first embodiment described above except that the configuration of the contact means and the configuration of the stirring means are different.

  As shown in FIG. 10, the motor storage portion 213 </ b> C is provided on the lower side of the main body 21. The motor storage portion 213 </ b> C has a box shape, and its upper surface 2131 </ b> C is fixed to the bottom plate 215 of the main body 21. A fixing method for fixing the motor storage portion 213C to the bottom plate 215 is not particularly limited, and for example, adhesion, fusion, fitting, or the like can be used.

  Inside such a motor storage portion 213C, a motor 64 fixed to the inner wall and a first disc 63C connected to the motor 64 via a shaft 66C are arranged in this order from the lower side of FIG. Has been.

  Further, an enlarged diameter portion 214 </ b> C whose inner diameter is enlarged is formed in the vicinity of the upper opening of the main body 21. An intermediate plate 23C is provided in such an enlarged diameter portion 214C.

  The middle plate 23C has a circular shape in plan view. Further, the diameter of the intermediate plate 23C is substantially equal to the diameter of the enlarged diameter portion 214C.

  Such an intermediate plate 23C is provided to be slidable in the vertical direction in FIG. 10 with respect to the inner peripheral surface of the enlarged diameter portion 214C. In order to make the sliding between the intermediate plate 23C and the enlarged diameter portion 214C smooth, for example, a low friction layer may be formed on the inner peripheral surface of the enlarged diameter portion 214C. The constituent material of such a low friction layer is not particularly limited. For example, a fluororesin such as polytetrafluoroethylene (PTFE) or tetrafluoroethylene / perfluoroalkyl vinyl ether copolymer (PFA) is preferably used. Can do.

  Further, the outer peripheral portion of the edge portion 32 of the soft cup 3 is bonded to the inner peripheral surface of the main body 21. Thereby, the liquid tightness of the cooling medium filling chamber 4 can be ensured. The edge 32 is also bonded to the lower surface of the intermediate plate 23C. Thereby, the cup part 31 can be reliably supported (that is, can be hung).

  As shown in FIG. 10, a recess 225C is formed on the back surface 221C of the lid 22C. Such a recess 225C has a circular cross-sectional shape.

  On the bottom surface 226C of the recess 225C, a plurality of coil springs 223C are provided along the circumferential direction of the bottom surface 226C. Each coil spring 223C expands and contracts in a direction perpendicular to the bottom surface 226C.

  The pressing member 71C is provided on the bottom surface 226C through such a plurality of coil springs 223C. In other words, one end portion of each coil spring 223C is fixed to the pressing member 71C, and the other end portion is fixed to the bottom surface 226C.

  Such a pressing member 71C is a member that presses the intermediate plate 23C when the refrigerator 1C is closed. The pressing member 71C has a disk shape. The pressing member 71C is provided so that a part thereof protrudes from the back surface 221C of the lid 22C.

  The constituent material of the pressing member 71C is not particularly limited, and various metal materials, various resin materials, and the like can be used, for example.

Next, the stirring means 6C will be described.
As shown in FIG. 10, the stirring means 6C includes the motor 64, the shaft 66C and the first disc 63C, the stirring blade 61C provided in the cooling medium filling chamber 4, and the first fixed to the stirring blade 61C. 2 discs 62C.

  The stirring blade 61C includes a cylindrical tubular portion 611C, an annular annular portion 612C formed so as to surround the outer periphery of the tubular portion 611C, and a plurality of blades that connect the tubular portion 611C and the annular portion 612C. Part 613C.

  A bearing 65 is fixed inside the lower opening of the cylindrical portion 611C. The bearing 65 is fixed to a convex portion 219 that protrudes upward from the bottom plate 215 in FIG. That is, the stirring blade 61 </ b> C is rotatably supported by the convex portion 219 via the bearing 65. Such a stirring blade 61 </ b> C rotates around the convex portion 219.

  A second disc 62C is provided below the stirring blade 61C. The second disc 62C has a circular shape in plan view. The second disc 62C is fixed to the outer peripheral surface of the cylindrical portion 611C, for example, by fitting. Thereby, the 2nd disk 62C and the stirring blade 61C rotate integrally.

  A plurality of permanent magnets 622C are provided on the lower surface 621C of the second disc 62C. As shown in FIG. 11, the plurality of permanent magnets 622C are provided on the edge (outer peripheral portion) of the second disc 62C. The plurality of permanent magnets 622C are provided at intervals in the circumferential direction of the second disc 62C. The plurality of permanent magnets 622 </ b> C are provided at equiangular intervals around the convex portion 219.

  Each such permanent magnet 622C is magnetized in the thickness direction of the second disc 62C (that is, the vertical direction in FIG. 10). That is, the lower surface 6221C side of each permanent magnet 622C is an S pole and the upper surface 6222C side is an N pole, or the lower surface 6221C side of each permanent magnet 622C is an N pole, and the upper surface 6222C side is an S pole.

  Such a permanent magnet 622C is not particularly limited, and for example, a neodymium magnet, a ferrite magnet, a samarium cobalt magnet, an alnico magnet, or the like can be suitably used.

  The first disc 63C is provided so as to face the second disc 62C with the bottom plate 215 interposed therebetween. Such a first disc 63C has the same shape and the same size as the second disc 62C. Therefore, the description of the shape of the first disc 63C is omitted.

  Such a first disc 63C is connected to the motor 64 via the shaft 66C. Thus, when the motor 64 is driven, the driving force is transmitted to the first disc 63C via the shaft 66C, and the first disc 63C rotates around the shaft 66C.

  A plurality of permanent magnets 632C are provided on the upper surface 631C of the first disc 63C. The arrangement and the like of the plurality of permanent magnets 632C are the same as those of the plurality of permanent magnets 622C described above, and thus description thereof is omitted.

  Each permanent magnet 632C is magnetized in the thickness direction of the first disc 63C (that is, the vertical direction in FIG. 10). Further, each permanent magnet 632C has a polarity on the upper surface 6321C side (that is, the surface side facing the permanent magnet 622C) and a polarity on the lower surface 6221C side (that is, the surface side facing the permanent magnet 632C) of each permanent magnet 632C. It is provided to have the opposite polarity.

  That is, each permanent magnet 632C is provided so that the upper surface 6321C side is an N pole when the lower surface 6221C side of each permanent magnet 622C is an S pole, and when the lower surface 6221C side of each permanent magnet 622C is an N pole, The upper surface 6321C side is provided as the S pole. Thereby, a magnetic attractive force is generated between the permanent magnet 622C and the permanent magnet 632C.

The stirring means 6C as described above is driven as follows, for example.
When the motor 64 is driven by the motor driver 66, the first disk 63C rotates accordingly. As described above, a magnetic attractive force is generated between the permanent magnet 632C provided on the first disc 63C and the permanent magnet 622C provided on the second disc 62C. When the first disk 63C rotates, the second disk 62C rotates around the convex portion 219 so as to follow the rotation. When the second disk 62C rotates, the stirring blade 61C fixed to the second disk 62C also rotates integrally.

  Thereby, it can be said that the stirring means 6C is configured to transmit the power of the motor 64 to the stirring blade 61C in a non-contact manner.

  By making the stirring means 6C have such a configuration, the shaft connecting the motor 64 and the stirring blade 61C can be omitted. Therefore, the liquid tightness of the cooling medium filling chamber 4 is more reliably ensured.

Next, the contact means 7C will be described.
The contact means 7C has the pressing member 71C described above. Such a close contact means 7C operates as follows.

  First, as shown in FIG. 10, when the refrigerator 1C is in the open state, the intermediate plate 23C is positioned at the upper end portion of the enlarged diameter portion 214C. In other words, the cooling medium Q is designed to push the intermediate plate 23C upward through the edge 32 of the soft cup 3 in FIG. The middle plate 23 </ b> C is stationary at a position that balances with the force to push down 10.

  In such a state, when the container P is accommodated in the cup part 31 and the refrigerator 1C is closed, the pressing member 71C presses the intermediate plate 23C downward in FIG. Thereby, as shown in FIG. 12, the middle plate 23C is displaced downward in FIG. 12 while sliding with the inner peripheral surface of the enlarged diameter portion 214C. As a result, the volume of the cooling medium filling chamber 4 is reduced by the amount of the displacement, and the internal pressure in the cooling medium filling chamber 4 is increased. When the internal pressure in the cooling medium filling chamber 4 increases, the cup 31 is pressed toward the inside (that is, the container P side) by the cooling medium Q. Thereby, the cup part 31 deform | transforms so that it may respond | correspond to the external shape of the container P, Therefore, the inner surface 313 of the cup part 31 closely_contact | adheres to the outer surface P1 of the container P. FIG.

  At this time, each coil spring 223C is compressed. Then, each coil spring 223C attempts to push down the intermediate plate 23C through the pressing member 71C downward in FIG. 12, and the cooling medium Q attempts to push up the intermediate plate 23C through the edge 32 upward in FIG. The middle plate 23C is stationary at a position where the force to balance is balanced. Thereby, it can prevent that the internal pressure of the cooling medium filling chamber 4 increases too much.

  In the present embodiment, a description has been given of a case where a plurality of permanent magnets 622C are provided on the lower surface 621C of the second circular plate 62C. It may be provided with a permanent magnet. Further, the arrangement of the plurality of permanent magnets 622C is not particularly limited, and may be provided, for example, in the center. The same applies to the permanent magnet 632C.

  Further, for example, when the first disc 63C and the second disc 62C themselves are composed of permanent magnets, the permanent magnets 622C and 632C may be omitted.

  In the present embodiment, the coil spring 223C is used. For example, instead of the coil spring 223C, an elastic block body made of a rubber material such as Si rubber, EPDM, or fluorine rubber may be used. Good.

  According to the fourth embodiment as described above, the same effect as that of the refrigerator 1 of the first embodiment can be exhibited.

<Fifth Embodiment>
Next, a fifth embodiment of the refrigerator of the present invention will be described.

  FIG. 13 is a schematic longitudinal sectional view showing a fifth embodiment of the refrigerator of the present invention, and FIG. 14 is a schematic perspective view showing a usage state of the refrigerator shown in FIG.

  Hereinafter, the refrigerator 1D of the fifth embodiment will be described focusing on differences from the above-described refrigerator 1 of the first embodiment, and description of similar matters will be omitted. The same reference numerals are given to the same components as those in the above-described embodiment.

  The refrigerator of the fifth embodiment is substantially the same as the refrigerator of the first embodiment except that the constituent materials of the casing are different, the configuration of the stirring means is different, and the cooling means is omitted. It is the same.

  As illustrated in FIG. 13, the refrigerator 1 </ b> D is used by being stored in, for example, a freezer compartment (freezer) 101 included in a household refrigerator 100. Such a refrigerator 1D is stored in the freezer 101 in a state in which the container P is stored in the soft cup 3, and the cooling medium Q is cooled by the cold air in the freezer 101 through the casing 2D. The liquid beverage L is configured to be stored at a temperature below the freezing point of the liquid beverage L and in a supercooled state in which the liquid beverage L is kept unfrozen.

  The casing 2D includes a box-shaped main body 21D, a lid body 22D that opens and closes an upper opening of the main body 21D, and a middle plate 23D that is provided so as to cover the opening of the main body 21D.

  Such a casing 2D (that is, the main body 21, the lid body 22, and the intermediate plate 23) has thermal conductivity. Thereby, the cooling medium Q can be efficiently cooled by the cool air in the freezer 101 via the casing 2D. In the refrigerator 1D, it can be said that the freezer 101 functions as a cooling means for cooling the cooling medium Q.

  The casing 2D is made of, for example, a material having thermal conductivity. The material having such heat conductivity is not particularly limited, and examples thereof include various metal materials such as stainless steel, aluminum or aluminum alloy, copper or copper alloy, and resin materials having excellent heat conductivity such as heat conductive resin. Can be used.

  Among these, a material having a thermal conductivity of 1.2 W / (m · k) or more is preferably used, and a material having 5 W / (m · k) or more is more preferably used. Thereby, the cooling medium Q can be cooled very efficiently by the cold air in the freezer 101.

  The stirring means 6 provided in the refrigerator 1D has a crank 68D fixed to the end of the shaft 63 outside the main body 21D. When the user rotates the crank 68D around the shaft 63, power is transmitted to the stirring blade 61 through the shaft 63 and the bevel gear 62, and the stirring blade 61 rotates.

Such a refrigerator 1D is used as follows, for example.
First, the user opens the refrigerator 1 </ b> D and stores the container P in the cup portion 31 of the soft cup 3. Then, the refrigerator 1D is closed, and the lid 22D and the main body 21D are fixed by a fixture (not shown). In this state, as shown in FIG. 11, it installs in the freezer 101 and closes the door 102 (that is, stores the refrigerator 1C in the refrigerator 101).

  First, the cooling medium Q is cooled by the cool air in the freezer 101 through the casing 2D. The container P is cooled by the cooled cooling medium Q through the soft cup 3. At this time, the container P is cooled substantially uniformly throughout the liquid beverage L so that no temperature difference (temperature unevenness) occurs. Thereby, the liquid drink L can be made into a supercooled state more reliably.

  In this state, it is left for several hours (for example, about 2-3 hours). During this time, if necessary, with the door 102 of the freezer 101 opened and the refrigerator 1D installed in the freezer 101, the crank 68D is rotated while being careful not to give excessive vibration or shock to the refrigerator 1D. The cooling medium Q is stirred. Thereby, it can suppress effectively that temperature nonuniformity generate | occur | produces in the cooling medium Q, and the container P can be cooled uniformly over the whole.

  After leaving, the refrigerator 1D is taken out from the freezer 101 while taking care not to give excessive vibration and shock to the refrigerator 1D, and after releasing the fixture, the refrigerator 1D is opened. And the container P preserve | saved in the supercooled state is taken out from the cup part 31. FIG.

  According to such a refrigerator 1D, since the cooling means for cooling the cooling medium can be omitted, for example, the structure of the refrigerator 1D is further simplified as compared with the refrigerator 1 of the first embodiment. can do.

  According to the fifth embodiment as described above, the same effect as that of the refrigerator of the first embodiment can be exhibited.

<Sixth Embodiment>
Next, a sixth embodiment of the refrigerator of the present invention will be described.

FIG. 15 is a schematic longitudinal sectional view showing a sixth embodiment of the refrigerator of the present invention.
Hereinafter, the refrigerator 1E of the sixth embodiment will be described with a focus on differences from the above-described refrigerator 1 of the first embodiment, and description of similar matters will be omitted. The same reference numerals are given to the same components as those in the above-described embodiment.

  The refrigerator of the sixth embodiment is substantially the same as the refrigerator of the first embodiment except that the target of supercooling is different.

As shown in FIG. 15, a container P ′ is stored in the cup portion 31 of the refrigerator 1E.
The container P ′ has a bottomed cylindrical main body P1 ′ and a lid P2 ′. The lid P2 ′ is detachably attached to the main body P1 ′ by screwing. By mounting the lid P2 ′ on the main body P1 ′, a liquid tight space is defined inside the container P ′. . In the liquid-tight space, together with a biological tissue Z such as an organ, a storage liquid Y suitable for storing the biological tissue is placed.

  Such a container P '(main body P1' and lid P2 ') may be soft or hard, but is preferably hard from the viewpoint of preventing organ damage. The constituent material of the container P ′ (the main body P1 ′ and the lid body P2 ′) is not particularly limited, and examples thereof include various resin materials such as polyethylene, polypropylene, polyethylene terephthalate (PET).

  The biological tissue Z to be put in the container P ′ together with the preservation solution may be human, domestic animals such as cows, pigs, horses and sheep, and experimental mice. In addition, examples of the biological tissue Z include organs for transplantation or research.

  Such organs are not particularly limited, for example, digestive system such as stomach, small intestine, large intestine, circulatory system such as heart, spleen, kidney, thymus, bone marrow, respiratory system such as lung, liver, bladder And urinary system such as prostate, genital system such as testis (testis), ovary, uterus, penis (male genital organ), sensory organ system such as eyeball, cornea, skin, and tympanic membrane, and nervous system such as brain and spinal cord.

  In addition to organs as described above, the biological tissue Z includes cells including lesions such as fingers, ears, tongue, placenta, umbilical cord, blood vessels, lymph vessels, muscles, nerves, vocal cords, and cancer cells. Examples include various cells, tissues obtained by autologous culture and autologous culture (for example, skin, corneal epithelium), and the like.

  Here, since the freezing point of the organ is about −2 ° C. depending on the type, the cooling medium Q of the present embodiment is preferably an antifreeze liquid having a freezing point of −10 ° C. or lower. Thereby, it is possible to prevent the cooling medium Q from solidifying in the process of supercooling the organ together with the preservation liquid, regardless of the type of the organ or the preservation liquid placed in the container P ′. As a result, the organ can be more reliably supercooled with the preservation solution.

  Further, the preservation solution Y is not particularly limited, and for example, organ preservation solution for preserving the organ as described above, cells (including tissues obtained by autogenous culture or allogeneic culture) are cultured (preserved). Cell culture solution, transfusion preservation solution, and the like. Examples of the organ preservation solution include Ringer's solution, Collins solution, Eurocollins solution, UW solution, ET-KYOTO solution, and the like. These preservation solutions can be appropriately selected according to the biological tissue (organ) to be preserved.

  For example, the container P ′ containing the organ (biological tissue Z) and the preservation solution Y for preserving the organ as described above is stored in the refrigerator 1E, the organ is cooled together with the preservation solution Y, and the organ is stored together with the preservation solution Y. By setting it in a cooled state, the organ can be stored in a frozen state at a lower temperature.

  Therefore, according to the refrigerator 1E, the organ can be stored for a longer time in a state where the viability (activity) is maintained and the metabolism of the cells is reduced. Further, according to the refrigerator 1E, since the organ is not frozen, it is possible to prevent the organ from being altered or destroyed (cell destruction, etc.) by freezing and thawing.

  Similarly, a container P ′ enclosing a tissue (living tissue Z) obtained by self-culture and a cell culture solution (preservation solution Y) is stored in the refrigerator 1E, and the tissue obtained by self-culture is stored together with the cell culture solution. By cooling and allowing the tissue obtained by autologous culture to be in a supercooled state together with the cell culture medium, the tissue obtained by autologous culture can be stored in an unfrozen state at a lower temperature.

  Therefore, according to the refrigerator 1E, the tissue obtained by self-culture can be stored for a longer time in a state where the viability (activity) is maintained and the metabolism of the cells is reduced. . In addition, according to the refrigerator 1E, the tissue obtained by the self-culture does not freeze, so that the tissue obtained by the self-culture is altered or destroyed (cell destruction, etc.) by freezing and thawing. Can be prevented.

  Here, for example, in the course of regenerative medicine, the tissue obtained by autologous culture may be returned to the patient multiple times at intervals of time. Therefore, although it becomes necessary to preserve | save the tissue obtained by self culture for a long time, according to the refrigerator 1E, the structure | tissue obtained by self culture can be preserve | saved long enough from the effect | action mentioned above. it can. Therefore, the refrigerator 1E is effectively used in the field of regenerative medicine.

  According to the sixth embodiment as described above, the same effect as that of the refrigerator of the first embodiment can be exhibited. In addition, in this embodiment, although the refrigerator of the structure similar to 1st Embodiment mentioned above is used, it is not limited to this, You may use the refrigerator of 2nd-5th embodiment mentioned above.

  The container P ′ may contain sperm, eggs (including fertilized eggs), and a storage solution thereof. In this case, the sperm preservation solution includes, for example, a well-known preservation solution containing TES solution, glycerin, egg yolk, etc., and the egg preservation solution includes, for example, 0.6 M sucrose, 20% ethylene glycol, 20 Well-known preservation solutions (vitrification solution) such as TCM199 (manufactured by Gibco-BRL) containing% DMSO (dimethyl sulfoxide) and 20% calf serum (CS) can be mentioned. Thereby, since sperm and an ovum can be cryopreserved by freezing at lower temperature, a sperm and an ovum can be preserve | saved for a long time, maintaining activity.

<Seventh embodiment>
Next, a seventh embodiment of the refrigerator of the present invention will be described.

FIG. 16: is a typical longitudinal cross-sectional view which shows 7th Embodiment of the refrigerator of this invention.
Hereinafter, the refrigerator 1F of the seventh embodiment will be described focusing on the differences from the above-described refrigerator 1 of the first embodiment, and description of similar matters will be omitted. The same reference numerals are given to the same components as those in the above-described embodiment.

  The refrigerator according to the seventh embodiment is substantially the same as the refrigerator according to the first embodiment except that the object of supercooling is different.

  As shown in FIG. 16, a blood bag B in which blood is sealed is stored in the cup portion 31 of the refrigerator 1F. Such a blood bag B is made of, for example, soft polyvinyl chloride.

  The blood sealed in the blood bag B may be, for example, whole blood (as collected from a blood donor) or a preservative (anticoagulant) added to the whole blood. It may be obtained by collecting necessary blood components (at least one of plasma, white blood cells, platelets and red blood cells) from whole blood by centrifugation or the like, or may be cord blood. It may be serum or a blood product.

  In this way, by storing the blood bag B enclosing blood in the refrigerator 1F, cooling the blood, and making it supercooled, the blood is not frozen (that is, in the liquid phase) at a lower temperature. It can be stored in a cold state. Therefore, according to the refrigerator 1F, blood can be stored for a longer period of time while preventing alteration or destruction (hemolysis) of blood (blood components (particularly blood cell components of red blood cells and white blood cells)) due to freezing and thawing. .

  Instead of the blood bag B, for example, a bag enclosing body fluid such as urine and bile may be used.

  According to the seventh embodiment as described above, the same effect as that of the refrigerator of the first embodiment can be exhibited. In addition, in this embodiment, although the refrigerator of the structure similar to 1st Embodiment mentioned above is used, it is not limited to this, You may use the refrigerator of 2nd-5th embodiment mentioned above.

  As mentioned above, although the refrigerator of this invention was demonstrated based on embodiment of illustration, this invention is not limited to this. For example, in the refrigerator of the present invention, the configuration of each part can be replaced with any configuration that exhibits the same function, and any configuration can be added.

  Moreover, the structure of the refrigerator may be a combination of a plurality of structures described in the above embodiments. For example, in the refrigerator of the fifth embodiment, the motor described in the first to third embodiments may be used instead of the crank, and the cooling medium filling chamber is used in the first to third embodiments. The pair of temperature detection elements described may be provided. In this case, for example, when the motor and each temperature detection element are electrically connected, and the temperature difference between the temperatures detected by each temperature detection element exceeds a predetermined value, the motor is driven to cool. It may be configured to agitate the medium.

  In the above-described embodiment, the refrigerator is configured to be able to store one container. However, the present invention is not limited to this. For example, a plurality of cup portions (two or more) are formed in a soft cup, You may be comprised so that a container can be accommodated by the number of cup parts. In this case, it is preferable that a plurality of cup portions are disposed with a necessary and sufficient gap therebetween so that the containers accommodated in the cup portions are cooled in the same manner by the cooling medium.

  Further, in the above-described embodiment, the description has been made on the case where the Peltier element is used as the cooling means. However, the cooling medium is not limited to this as long as the cooling medium can be cooled. .

  Further, in the above-described embodiment, the description has been given of the refrigerator provided with the close contact means, the agitation means, and the temperature detection means. However, the present invention is not limited to this, and the close contact means may not be provided. Means may not be provided, and temperature detection means may not be provided.

  In the above-described embodiment, the main body (casing) has a circular cross section. However, the present invention is not limited to this. For example, the main body (casing) may be a polygon such as a rectangle or an oval. Good.

  Moreover, as the liquid put into the container, it is not limited to a soft drink or an alcoholic beverage, For example, liquids other than drinks, such as soapy water, disinfecting liquid, liquid detergent, a preservation | save liquid, and a chemical | medical solution, may be sufficient.

  Moreover, although 1st Embodiment-3rd Embodiment mentioned above demonstrated what the main body was comprised with the resin material which has heat insulation, it is not limited to this, For example, 1st comprised with the metal material And a layered body in which a second layer composed of a resin material is laminated.

  Moreover, in 1st Embodiment-3rd Embodiment mentioned above, although the heat-transfer board demonstrated what comprises a part of inner wall surface of a main body, it is not limited to this, For example, all the inner wall surfaces of a main body are demonstrated. You may comprise, and it does not need to comprise the inner surface of a main body.

Moreover, although embodiment mentioned above demonstrated what the casing of the refrigerator provided with the cover body and the intermediate | middle board, it is not limited to this, The cover body and the intermediate | middle board do not need to be provided.
In the above-described embodiment, the beverage used for the supercooling of the beverage, the beverage used for the supercooling of the biological tissue preservation solution, and the one used for the supercooling of the body fluid (blood) have been described. The field of use of the storage is not limited to this, and for example, it can be used for transplantation areas, regenerative medicine areas, basic experiment areas, gene therapy areas, clinical examination areas, pharmaceutical / reagent areas, and the like.

It is a typical whole view of the refrigerator of this invention. It is a typical longitudinal cross-sectional view of the refrigerator shown in FIG. It is the sectional view on the AA line in FIG. It is a figure which shows the operation state of the contact | adherence means with which the refrigerator shown in FIG. 2 is provided. It is a block diagram of the refrigerator shown in FIG. It is a typical longitudinal section showing a 2nd embodiment of a refrigerator of the present invention. It is a figure which shows the operation state of the contact | adherence means with which the refrigerator shown in FIG. 6 is provided. It is a typical longitudinal section showing a 3rd embodiment of a refrigerator of the present invention. It is a figure which shows the operation state of the contact | adherence means with which the refrigerator shown in FIG. 8 is provided. It is a typical longitudinal section showing a 4th embodiment of a refrigerator of the present invention. It is the BB sectional view taken on the line in FIG. It is a figure which shows the operation state of the contact | adherence means with which the refrigerator shown in FIG. 10 is provided. It is a typical longitudinal section showing a 5th embodiment of a refrigerator of the present invention. It is a typical perspective view which shows the use condition of the refrigerator shown in FIG. It is a typical longitudinal section showing a 6th embodiment of a refrigerator of the present invention. It is a typical longitudinal section showing a 7th embodiment of a refrigerator of the present invention.

Explanation of symbols

1, 1A, 1B, 1C, 1D, 1E, 1F Refrigerator 2, 2D Casing 21, 21D Main body 211 Window portion 212 Heat transfer plate (heat transfer portion)
212a, 212b Surfaces 213, 213C Motor housing portion 2131C Upper surface 214, 214C Expanded diameter portion 215 Bottom plate 216, 217 Recessed portion 218 Side wall 219 Protruding portion 22, 22C, 22D Lid 221, 221C Back surface 222 Sealing member 223C Coil spring 225C Recessed portion 226C Bottom surface 23, 23A, 23B, 23C, 23D Middle plate 231, 232 Through hole 241, 242 Seal member 25 Connector 3 Soft cup 31 Cup part 311 Opening 312 Bottom part 313 Inner surface 32 Edge part 321 Deformation part 4 Cooling medium filling chamber 5 Cooling means 51 Peltier element 511 Heat generation surface 512 Heat absorption surface 52 Heat sink 53 Voltage application means 6, 6C Stirring means 61, 61C Stirring blade 611, 611C Cylindrical portion 612, 612C Annular portion 613, 613C Blade portion 614 Shaft member 61 5 hole 616 gear 62 bevel gear 62C second disk 621C lower surface 622C permanent magnet 6221C lower surface 6222C upper surface 63C first disk 631C upper surface 632C permanent magnet 6321C upper surface 63 shaft 64 motor 65 bearing 66 motor driver 66C shaft 68 7A, 7B, 7C Contacting means 71, 71C Press member 71A, 71B Reservoir tank 711A, 711B Space 712B Communication hole 713B Protruding part 72A, 72B Supply means 721A, 721B Gasket 722A Solenoid 722B Protruding part 723A, 724B Protruding part 724B Portion 725A Rod 726B Spring member 727B Expanded portion 73A Switch 75A Tube member 8 Temperature detection means 81, 82 Temperature detection element 9 Control means 91 Control unit 92 transmission unit 93 judging section 100 refrigerator 101 freezer compartment (freezer)
102 Door 11 Operation section 111 Power switch 112 Start switch 113 Selection switch 12 Notification means B Blood bag P, P 'Container P1 Outer surface P1' Body P2 'Lid X-axis Q1 Convection Q2 Swirling flow

Claims (25)

A casing,
A soft cup provided inside the casing and capable of storing a container containing a liquid;
A cooling medium filled in a space formed between the soft cup and the inner wall of the casing;
Cooling means for cooling the cooling medium,
In a state where the container is housed in the soft cup, the cooling medium is cooled by the cooling means, and the container is cooled by the cooling medium through the soft cup, so that the container is below the freezing point of the liquid. And storing the liquid in a supercooled state in which the liquid remains unfrozen.   The refrigerator according to claim 1, wherein the cooling medium is an antifreeze liquid having a freezing point lower than a freezing point of the liquid.   The refrigerator according to claim 1 or 2, wherein at least a part of the casing has a heat insulating property.   The refrigerator according to any one of claims 1 to 3, wherein the cooling means includes a Peltier element disposed on a wall portion of the casing.   The refrigerator according to claim 4, wherein the Peltier element is disposed such that a heat absorbing surface of the Peltier element is located inside the casing and a heat generating surface is located outside the casing.   The refrigerator according to claim 5, wherein the casing includes a heat transfer portion having thermal conductivity provided so as to come into contact with the cooling medium, and the heat absorption surface is in contact with the heat transfer portion.   The refrigerator according to any one of claims 4 to 6, wherein a heat sink is provided on the heat generating surface. A refrigerator that is stored in a freezer and used.
A casing having thermal conductivity;
A soft cup provided inside the casing and capable of storing a container containing a liquid;
A cooling medium filled in a space formed between the soft cup and the inner wall of the casing;
The container is stored in the freezer in a state where the container is housed in the soft cup, the cooling medium is cooled via the casing by the cold air in the freezer, and the container is stored via the soft cup by the cooling medium. A cooling box characterized by storing the container in a supercooled state in which the liquid is maintained at an unfrozen state at a temperature below the freezing point of the liquid by cooling.   The refrigerator according to claim 8, wherein the casing is made of a material having a thermal conductivity of 1.2 W / (m · k) or more.   The refrigerator according to any one of claims 1 to 9, wherein when the temperature of the liquid is equal to or lower than a freezing point of the liquid, the liquid is cooled so that a temperature difference in the liquid hardly occurs. .   The liquid is cooled so that Tmax−Tmin satisfies 1 ° C. or less, where Tmax is the temperature of the highest temperature portion of the liquid beverage and Tmin is the temperature of the lowest temperature portion. The refrigerator according to claim 10.   The refrigerator in any one of Claims 1 thru | or 11 which has a close_contact | adherence means which adheres the inner surface of the said soft cup to the outer surface of the said container. A lid that opens and closes the opening of the soft cup;
The refrigerator according to claim 12, wherein the contact means is configured to operate in conjunction with opening and closing of the lid.   The close contact means is in a close contact state in which the inner surface of the soft cup is in close contact with the outer surface of the container when the cover body is in a closed state covering the opening, and when the cover body is in an open state in which the opening is opened. The refrigerator according to claim 13, configured to release the close contact state. Defining a part of the space, and having a deformable portion that can be deformed or displaced toward the inside of the space,
The contact means includes a pressing member that is provided on the lid and presses the deforming portion. When the pressing member is in the closed state, the pressing member presses the deforming portion toward the inside of the space. The volume of the space is reduced and the internal pressure in the space is increased, whereby the soft cup is deformed to correspond to the outer shape of the container housed in the soft cup, and the inner surface of the soft cup The refrigerator according to claim 14, which is configured to be in close contact with an outer surface of the container. The contact means includes a reservoir tank that communicates with the space, stores the cooling medium, and a supply means that supplies the cooling medium in the reservoir tank to the space.
By operating the supply means to supply the cooling medium into the space, the amount of the cooling medium in the space is increased and the internal pressure in the space is increased, whereby the soft cup is The cooling according to any one of claims 12 to 14, wherein the cooling is configured so as to correspond to the outer shape of the container housed in a soft cup, and the inner surface of the soft cup is in close contact with the outer surface of the container. Warehouse.   The refrigerator in any one of Claims 1 thru | or 16 which has a stirring means to stir the said cooling medium.   The refrigerator according to claim 17, wherein the stirring means is configured to generate a swirling flow along an outer peripheral surface of the soft cup and / or a convection along an axial direction of the soft cup. The casing has a box-shaped main body,
The cooler according to claim 17 or 18, wherein the stirring means includes a stirring blade disposed near the bottom of the casing.   The refrigerator according to any one of claims 1 to 19, further comprising at least one temperature detection element that detects a temperature of the cooling medium.   The refrigerator according to any one of claims 1 to 20, wherein the liquid is a beverage.   The refrigerator according to any one of claims 1 to 20, wherein the liquid is a body fluid.   The refrigerator according to claim 22, wherein the body fluid is blood.   The refrigerator according to any one of claims 1 to 20, wherein the liquid is a storage liquid.   The refrigerator according to claim 24, wherein the preservation solution is a preservation solution for preserving a living tissue.

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