CN206449981U - Oxygen-enriched membrane component and refrigerating device - Google Patents

Abstract

The utility model provides a kind of oxygen-enriched membrane component and refrigerating device.Wherein oxygen-enriched membrane component includes supporting shell, and the escape pipe on a chamber, and its shell wall with multiple hollow out openings and a connection chamber interior or exterior space is defined inside it；And oxygen permeable membrane, it coats supporting shell, to close whole hollow out openings of supporting shell, so that chamber constitutes an oxygen rich gas collecting chamber, oxygen rich gas collecting chamber is only in communication with the outside by escape pipe；Oxygen-enriched membrane component is configured to make the oxygen relative nitrogen in oxygen rich gas collecting chamber surrounding space air-flow more to enter oxygen rich gas collecting chamber through oxygen permeable membrane.Oxygen-enriched membrane component small volume of the present utility model, intensity are high and deaerating effect is good.

Description

Oxygen-enriched membrane component and refrigerating device

Technical field

The utility model is related to gas separation technique field, more particularly to a kind of oxygen-enriched membrane component and the refrigeration with it Refrigerating plant.

Background technology

Refrigerator is to maintain a kind of refrigeration plant of constant low temperature, is also that one kind makes food or other articles keep constant low temperature The product for civilian use of cold conditions.With the raising of quality of the life, consumer is to storing the fresh-keeping requirement of food also more and more higher, especially It is requirement to color and luster, the mouthfeel of food etc. also more and more higher.Therefore, the food of storage should also be as ensureing during storing, food Color and luster, mouthfeel, freshness of thing etc. keep constant as far as possible.

In the preservation technology of refrigerator, the oxidation of food, respiration are all closely related in oxygen and refrigerator.Food Breathing is slower, and the oxidation of food is lower, and fresh keeping time is also longer.The oxygen content in air is reduced, to food fresh keeping With obvious effect.

At present, in order to reduce the content of oxygen in refrigerator, vacuum freshness retaining or extra setting are generally utilized in the prior art It is fresh-keeping that device for deoxidizing carries out hypoxemia.However, the operation of vacuum freshness retaining is typically more cumbersome, using being inconvenient；And device for deoxidizing Deoxygenation generally is carried out using electrolyte etc., device is complex and deaerating effect is not obvious.

Controlled atmosphere technology refers to the atmosphere (gas componant by adjusting closing space residing for storage thing in general manner Ratio or gas pressure) mode extend the technology of shelf life of food products, its general principle is：In certain closing space It is interior, the atmosphere different from normal air constituent is obtained by various regulative modes, to suppress to cause storage thing (usually to eat Material) putrid and deteriorated physiological and biochemical procedure and microorganism activity.Especially, in this application, the controlled atmosphere discussed will Specifically designed in the controlled atmosphere technology that gas component ratio is adjusted.

Those skilled in the art know that normal air constituent includes and (presses volume percentage, hereafter together)：About 78% Nitrogen, about 21% oxygen, about 0.939% rare gas (helium, neon, argon, krypton, xenon, radon), 0.031% carbon dioxide, with And 0.03% other gases and impurity (for example, ozone, nitric oxide, nitrogen dioxide, vapor etc.).In controlled atmosphere neck Domain, generally reduces by the way of oxygen content to obtain the fresh-keeping gas of rich nitrogen oxygen deprivation using being filled with nitrogen-rich gas to closing space Atmosphere.Here, those skilled in the art know, nitrogen-rich gas refer to that nitrogen content exceedes nitrogen content in above-mentioned normal air Gas, such as nitrogen content therein can be 95%~99%, even more high；And the fresh-keeping atmosphere of rich nitrogen oxygen deprivation refers to Nitrogen content exceedes the gas atmosphere that nitrogen content, oxygen content in above-mentioned normal air are less than oxygen content in above-mentioned normal air Enclose.

Find fruit and vegetable in hypoxemia water although the history of controlled atmosphere technology can trace back to German biologist in 1821 Metabolism can be usually reduced to start.But up to this point, because the equipment of making nitrogen volume for being conventionally used to controlled atmosphere is huge Greatly, it is with high costs, cause the technology to be substantially also limited to use (the storage capacity one on various large-scale professional storages As at least more than 30 tons).It can be said that being only possible to controlled atmosphere economically using which kind of appropriate gas regulation technology and related device System compact, mute, make it be applied to family or personal user, are that controlled atmosphere art personnel thirst for solution always But the technical barrier for the solution that fails all the time.

Utility model content

A purpose of the present utility model be in view of the foregoing defects the prior art has there is provided a kind of oxygen-enriched membrane component, It is applied in refrigerating device, for reducing the oxygen content in refrigerating device storage space.

The utility model is further objective is that a kind of small volume, intensity height and the good oxygen permeable membrane group of deaerating effect will be provided Part.

Another purpose of the present utility model is to provide for a kind of refrigerating device using above-mentioned oxygen-enriched membrane component.

On the one hand, the utility model provides a kind of oxygen-enriched membrane component, and it includes：

Supporting shell, defining inside it on chamber, and its shell wall has multiple hollow out openings and a connection chamber The escape pipe of interior or exterior space；With

Oxygen permeable membrane, it coats supporting shell, to close whole hollow out openings of supporting shell, so that chamber constitutes an oxygen rich air Body collecting chamber, oxygen rich gas collecting chamber is only in communication with the outside by escape pipe；

Oxygen-enriched membrane component is configured to：Make the oxygen relative nitrogen in oxygen rich gas collecting chamber surrounding space air-flow more saturating Oxygen permeable membrane is crossed into oxygen rich gas collecting chamber.

Alternatively, supporting shell is spherical shell, square shell, arc shell or fold-line-shaped shell.

Alternatively, multiple hollow out openings are circular hole or strip hole.

Alternatively, multiple hollow out openings are uniformly distributed on the shell wall of supporting shell.

Alternatively, oxygen permeable membrane is integral part, and the shell wall of supporting shell is all coated on the inside of oxygen permeable membrane.

Alternatively, the quantity of oxygen permeable membrane is multiple, and each oxygen permeable membrane is used to close a hollow out opening.

Alternatively, oxygen permeable membrane is pasted onto on the shell wall of supporting shell.

On the other hand, the utility model provides a kind of refrigerating device, and it includes：

Casing, defines in it and controlled atmosphere space is provided with storage space, storage space；

Oxygen-enriched membrane component according to any of the above, its surrounding space is connected with controlled atmosphere space；With

Aspiration pump, its inlet end is connected via pipeline with the escape pipe of oxygen-enriched membrane component, will penetrate oxygen rich gas collection The gas of intracavitary is pumped to controlled atmosphere outside.

Alternatively, refrigerating device also includes drawer appliance, and it includes drawer cylinder and is slidably mounted on drawer Controlled atmosphere space is defined in drawer body in cylinder, drawer body；And oxygen-enriched membrane component is arranged in drawer cylinder.

Alternatively, refrigerating device also includes blower fan, and it is arranged in drawer cylinder, is configured to controlled atmosphere space In gas blow to oxygen-enriched membrane component.

Oxygen-enriched membrane component of the present utility model is supported using supporting shell to the oxygen permeable membrane of thinner thickness, makes it more steady Gu, intensity is higher, is hardly damaged, suitable for small size structure is made, to be positioned in refrigerating device.

Further, oxygen-enriched membrane component of the present utility model can be according to its present position (such as drawer of refrigerating device Interior diverse location) difference, selection supporting shell is shaped as the differences such as spherical shell, square shell, arc shell or fold-line-shaped shell Shape, makes both to facilitate installation, is beneficial to more contact with surrounding space air again.

Further, supporting shell is set to spherical shell by oxygen-enriched membrane component of the present utility model, increases the table of oxygen permeable membrane The ratio between volume of oxygen rich gas collecting chamber that area is surrounded with it, and then improve the oxygen separation effect of oxygen-enriched membrane component.

In addition, refrigerating device of the present utility model is because with oxygen-enriched membrane component and aspiration pump, aspiration pump can be by richness Gas (predominantly oxygen) in carrier of oxygen collecting chamber is extracted out in time, so as to remain at negative pressure shape in oxygen rich gas collecting chamber State, promotes the oxygen in controlled atmosphere space persistently to pass through oxygen permeable membrane.So as to make to form rich nitrogen oxygen deprivation in controlled atmosphere space In favor of the atmosphere of food fresh-keeping, the atmosphere reduces fruits and vegetables by reducing the content of oxygen in fruits and vegetables shelf space The intensity of aerobic respiration, while ensureing the respiration on basis, prevents fruits and vegetables from carrying out anaerobic respiration, so as to reach that fruits and vegetables are protected for a long time Fresh purpose.

Further, refrigerating device of the present utility model is not only of good preservation effect, and to the firm of container for storing etc. Property, intensity requirement it is relatively low, realize require it is very low, then cost is also very low.Moreover, solving controlled atmosphere art personnel always Thirst for the above-mentioned technical barrier of solution but the solution that fails all the time.Refrigerating device not only small volume, and noise is also very It is low, it is particularly suitable for use in family and personal use.

According to the accompanying drawings to the detailed description of the utility model specific embodiment, those skilled in the art will be more Plus understand of the present utility model above-mentioned and other purposes, advantages and features.

Brief description of the drawings

It is described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter more of the present utility model specific real Apply example.Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that What these accompanying drawings were not necessarily drawn to scale.In accompanying drawing：

Fig. 1 is the structural representation of the oxygen-enriched membrane component according to the utility model one embodiment；

Fig. 2 is the decomposing schematic representation of oxygen-enriched membrane component shown in Fig. 1；

Fig. 3 is the sectional view of supporting shell shown in Fig. 2；

Fig. 4 is the structural representation of the oxygen-enriched membrane component according to another embodiment of the utility model；

Fig. 5 is the structural representation of the oxygen-enriched membrane component according to the another embodiment of the utility model；

Fig. 6 is the schematic diagram of the refrigerating device according to the utility model one embodiment；

Fig. 7 is the structural representation at another visual angle of refrigerating device shown in Fig. 6；

Fig. 8 is the structural representation of drawer appliance in the refrigerating device according to the utility model one embodiment.

Embodiment

Fig. 1 is the structural representation of the oxygen-enriched membrane component according to the utility model one embodiment, and Fig. 2 is rich shown in Fig. 1 The decomposing schematic representation of oxygen membrane module, Fig. 3 is the sectional view of supporting shell shown in Fig. 2.As depicted in figs. 1 and 2, richness of the present utility model Oxygen membrane module 30 includes supporting shell 100 and oxygen permeable membrane 200.The inside of supporting shell 100 defines a chamber 130, and supporting shell 100 Shell wall on have multiple hollow out openings 110 connected with one supporting shell 100 the interior or exterior space of chamber 130 escape pipe 120.It is rich Oxygen film 200 coats supporting shell 100 to close whole hollow out openings 110 of supporting shell 100, so that the chamber of supporting shell 100 130 constitute an oxygen rich gas collecting chamber, and oxygen rich gas collecting chamber is only in communication with the outside by escape pipe 120.Oxygen-enriched membrane component 30 It is configured to make the oxygen relative nitrogen in oxygen rich gas collecting chamber surrounding space air-flow more to enter oxygen-enriched through oxygen permeable membrane 200 Gas collection chamber.The effect of hollow out opening 110 is to make that chamber 130 can be entered after the gas permeation such as oxygen oxygen permeable membrane 200.

In the utility model embodiment, each oxygen permeable membrane 200 can be monofilm or multilayer film.Oxygen permeable membrane is for all Gas can all permeate, and simply gas with various has different penetration degrees.Gas permeation oxygen permeable membrane is one complicated Process, then it spread through the surface dissolving that mechanism is usually that gas molecule is adsorbed to oxygen permeable membrane first in oxygen permeable membrane, Finally desorbed from the opposite side of oxygen permeable membrane.Oxygen-enriched membrane separation technique dissolves and spread system by gas with various in oxygen permeable membrane Several difference realizes the separation of gas.When mixed gas is under certain driving force (pressure differentials of oxygen permeable membrane both sides) effect, Such as oxygen, hydrogen, helium, hydrogen sulfide, carbon dioxide are through after oxygen permeable membrane for the quickish gas of infiltration rate, in oxygen permeable membrane Per-meate side is enriched with, and the relatively slow gas of infiltration rate such as nitrogen, carbon monoxide etc. are trapped in the delay side quilt of oxygen permeable membrane Enrichment is so as to reach the purpose of mixed gas separation.

As the gas in oxygen rich gas collecting chamber is extracted, oxygen rich gas collecting chamber will be in negative pressure state, therefore rich Oxygen in the surrounding space air-flow of oxygen membrane module 30 will continue to enter in oxygen rich gas collecting chamber through oxygen permeable membrane 200.Certainly, To enable above-mentioned oxygen separation process continuously to carry out, escape pipe 120 is generally connected using aspiration pump so as to by richness Gas (predominantly oxygen) in carrier of oxygen collecting chamber is extracted out in time, it is remained at negative pressure state.

Because the thickness of oxygen permeable membrane 200 is typically relatively thin, supporting shell 100 ensure that oxygen permeable membrane 200 obtains enough supports, i.e., Make in the case where oxygen rich gas collecting chamber internal negative pressure is larger also can all the time original form without fail in compression or deformation.

In certain embodiments, as shown in Figure 1 to Figure 3, supporting shell 100 can be spherical shell.Compared to being internally provided with flow direction The tabular supporting shell of complicated microchannel, using the internal spherical shell with chamber 130, increases the surface area of oxygen permeable membrane 200 The ratio between volume of oxygen rich gas collecting chamber surrounded with it.I.e. the utility model make it that the surface area of oxygen permeable membrane 200 is relatively large, Pass through more oxygen；Make the volume of oxygen rich gas collecting chamber relatively small, make its each internal position and escape pipe 120 away from From smaller, when aspiration pump is evacuated, the air pressure decline of internal each position is very fast, and gas can be evacuated pump quickly and all take out Go out, oxygen separation process is accelerated with this.And the oxygen-enriched diaphragm area distant apart from escape pipe 120 of flat oxygen permeable membrane Air pressure decline it is relatively slow, it will influence the oxygen separation speed in the region.

Fig. 4 is the structural representation of the oxygen-enriched membrane component according to another embodiment of the utility model.In the implementation shown in Fig. 4 In example, supporting shell is arc shell.Fig. 4 only illustrates the profile of oxygen-enriched membrane component 10, and arc shell has been covered by oxygen permeable membrane 200 And do not show.But because oxygen permeable membrane 200 is very thin, the profile of oxygen-enriched membrane component 10 and the profile of supporting shell be it is consistent, only because Oxygen permeable membrane 200 has been coated to thicken slightly.Therefore, Fig. 4 has substantially illustrated the shape of arc shell.Certainly, arc shell Inside is also defined on chamber, shell wall, and also there are multiple hollow out openings to enter arc shell after oxygen permeable membrane 200 so that oxygen is passed through Chamber.

Supporting shell is set into arc shell to be easy to oxygen-enriched membrane component 10 abutting in the internal arc of drawer (or other containers) Shape corner, to save the space that it is occupied.Or be conveniently arranged in the cylindrical container of circle.In addition, foregoing arc shell The main part for referring to supporting shell is arc, and its two ends is also bent so that it is installed with miscellaneous part.Escape pipe 120 can be such as It is arranged on its straight flange, is may also be arranged on certainly on its arc-shaped side shown in Fig. 4.

Fig. 5 is the structural representation of the oxygen-enriched membrane component according to the another embodiment of the utility model.In the implementation shown in Fig. 5 In example, supporting shell is fold-line-shaped shell.With Fig. 4 embodiments similarly, Fig. 5 also only illustrates the profile of oxygen-enriched membrane component 10, but real Also the shape of fold-line-shaped shell has been illustrated in matter.

It supporting shell is set into fold-line-shaped can facilitate being placed on oxygen-enriched membrane component 10 into the top of drawer (or other containers), The top of oxygen-enriched membrane component 10 is set to be not easy to contact dust and dirt, water etc., it is ensured that oxygen-enriched membrane component 10 is difficult pollution.And And, the oxygen-enriched membrane component of fold-line-shaped no matter be placed in container where, its both sides can fully be contacted with air, be made Air fully circulates, and lifts oxygen separation effect.

Certainly, in some accompanying drawing non-illustrated embodiments, supporting shell can also be square shell (i.e. profile to be cube shaped or Cuboid), the effect of square shell is similar with spherical shell, can also increase the oxygen rich gas that the surface area of oxygen permeable membrane is surrounded with it The ratio between volume of collecting chamber, accelerates oxygen separation speed.

Supporting shell can also be ellipsoid shell or other profiled shapes, and such as wave linear shape is no longer discussed in detail herein.

In certain embodiments, various types of supporting shells such as spherical shell, arc shell, fold-line-shaped shell and square shell etc., its The multiple hollow out openings opened up on shell wall are preferably circular hole or strip hole, in order to design processing.Spherical shell as shown in Figure 2, Hollow out opening 110 is the circular hole being opened in supporting shell 100.Certainly it is alternatively the perforate of other shapes.Or, it can also make support The grid body structure that shell is generally woven into by multiple list structures, each grid is to constitute a hollow out opening.

In certain embodiments, above-mentioned multiple hollow out openings are preferably uniformly distributed on the shell wall of supporting shell.Such as Fig. 2 institutes In the spherical shell shown, multiple circular holes are evenly arranged in supporting shell 100.

In addition, the surface area to make full use of supporting shell, is easy to more gases to enter the chamber of supporting shell, preferably makes its shell The punching rate (surface area that shell wall is offered at circular hole accounts for the ratio of its whole surface area) of wall is more than 50%.

In the above-described embodiments, as shown in Figure 1, Figure 4 and Figure 5, oxygen permeable membrane 200 is preferably made to be integral part, supporting shell Shell wall is all coated on the inner side of oxygen permeable membrane 200.Oxygen permeable membrane 200 as shown in Figure 1 only sets a through hole 210 to allow escape pipe 120 pass through.The making of oxygen-enriched membrane component can so be facilitated.Certainly, for ease of acquisition special shape, so-called unitarily formed oxygen permeable membrane 200 also are understood as being spliced using two pieces or polylith oxygen permeable membrane.For example can for spherical oxygen permeable membrane 200 as shown in Figure 2 It is spliced (connecting method of similar football) by two hemispheric oxygen permeable membranes or multiple polygonal oxygen permeable membranes.

Or, in some embodiments that accompanying drawing is not illustrated, the quantity of oxygen permeable membrane is multiple, and each oxygen permeable membrane is used to close One hollow out opening, can so reduce the gross area of oxygen permeable membrane, reduce the cost of oxygen-enriched membrane component.

In the above-described embodiments, oxygen permeable membrane can be pasted onto on the shell wall of supporting shell, preferably fixed with realizing.Certainly, When oxygen-enriched membrane component such as the utility model embodiment is used for refrigerating device, the fluid sealant of the stickup used will ensure Food grade standard, that is, ensure that fluid sealant does not produce peculiar smell and noxious volatile material.

The oxygen-enriched membrane component 30 of the utility model embodiment is mainly used in realizing the separation of constituent of air, passes through the oxygen permeable membrane Component 30 can adjust the content of oxygen/nitrogen/carbon dioxide in air, and then applied to different application scenarios (for example；It is rich Oxygen environment；Lung ventilator/fresh keep-alive/heavy-oxygen-enriched water etc., low-oxygen environment；Controlled atmosphere/fire-retardant environment；Rich nitrogen environment；Rich titanium dioxide Carbocyclic ring border etc.).Due to the small volume of oxygen-enriched membrane component 30 of the utility model embodiment, thus be very suitable for for refrigerating Device.

On the other hand the utility model provides a kind of refrigerating device.Fig. 6 is according to one implementation of the utility model The structural representation of the refrigerating device of example, Fig. 7 is the structural representation at another visual angle of refrigerating device shown in Fig. 6, Fig. 8 is the structural representation of drawer appliance in the refrigerating device according to the utility model one embodiment.

As shown in Figure 6 to 8, the refrigerating device of the utility model embodiment may include casing 80, oxygen-enriched membrane component 30th, aspiration pump 10 and refrigeration system.

Storage space 201 is defined in casing 80.Being set in storage space 201 has controlled atmosphere space.Controlled atmosphere Space can be hermetic type space or approximate hermetic type space.The surrounding space of oxygen-enriched membrane component 30 is connected with controlled atmosphere space. The inlet end of aspiration pump 10 is connected via pipeline with the escape pipe 120 of oxygen-enriched membrane component 30, will penetrate oxygen rich gas collecting chamber Interior gas is pumped to controlled atmosphere outside.

Preferably, drawer appliance is provided with storage space 201, drawer appliance includes drawer cylinder 20 and drawer body 28.Drawer body 28 defines foregoing controlled atmosphere space.Drawer cylinder 20 can be with preceding to opening, and it is empty to be arranged at storing Between in 201, specifically may be disposed at the bottom of storage space 201.As one skilled in the art will recognize that, drawer cylinder 20 It may be disposed at the middle part or top of storage space 201.Drawer body 28 is slidably disposed in drawer cylinder 20, with from drawer Drawer cylinder 20 is operationally outwards extracted and be inwardly inserted into the forward direction opening of cylinder 20 out.Drawer body 28 can have drawer end Lid, drawer end cap can be engaged with the opening of drawer cylinder 20, to carry out the closed of controlled atmosphere space.Oxygen-enriched membrane component 30 is set It is placed in the drawer cylinder 20, is in controlled atmosphere space.

Refrigeration system can be the cooling cycle system being made up of compressor, condenser, throttling arrangement and evaporator etc..Compression Machine is mountable in compressor bin 13.Evaporator is configured to directly or indirectly provide cold into storage space 201.For example when When the refrigerating device is family expenses direct cooling refrigerator, evaporator may be disposed at the inner side of casing 80.When the refrigerating device is During family expenses wind cooling refrigerator, also there is evaporator room in casing 80, evaporator room is connected by air path system with storage space 201, And evaporator is set in evaporator room, exit is provided with blower fan, to carry out circularly cooling to storage space 201.

Aspiration pump 10 may be disposed in compressor bin 13, and its inlet end is via pipeline 50 and the escape pipe of oxygen-enriched membrane component 30 120 connections, the gas penetrated in oxygen rich gas collecting chamber is pumped out to outside controlled atmosphere space.Using aspiration pump 10 to Outer pumping, can make pressure of the pressure less than the surrounding space of oxygen-enriched membrane component 30 of oxygen rich gas collecting chamber, further, can make Oxygen in the surrounding space of oxygen-enriched membrane component 30 enters oxygen rich gas collecting chamber.Due to controlled atmosphere space and oxygen-enriched membrane component 30 Surrounding space is connected, and the air in controlled atmosphere space can enter the surrounding space of oxygen-enriched membrane component 30, therefore can also protect controlled atmosphere The oxygen in air in fresh space enters oxygen rich gas collecting chamber, so as to obtain rich nitrogen oxygen deprivation in controlled atmosphere space with profit In the atmosphere of food fresh-keeping.

Refrigerating device of the present utility model can make to be formed rich nitrogen oxygen deprivation in controlled atmosphere space in favor of food fresh-keeping Atmosphere, the atmosphere is by reducing the content of oxygen in fruits and vegetables shelf space, the intensity of reduction fruit/vegetable aerobic breathing, Ensure the respiration on basis simultaneously, prevent fruits and vegetables from carrying out anaerobic respiration, so as to reach the purpose of fruits and vegetables long-period freshness preserving.Moreover, The atmosphere also has the gas such as substantial amounts of nitrogen, will not also reduce article in controlled atmosphere space by cold efficiency, can make Fruits and vegetables etc. are effectively stored.Refrigerating device of the present utility model solves controlled atmosphere art personnel one well The straight above-mentioned technical barrier for thirsting for solution but the solution that fails all the time.Refrigerating device of the present utility model not only volume It is small, and noise is also very low, is particularly suitable for use in family and personal use.

In some embodiments of the present utility model, multiple micropores, the He of storage space 201 can be offered on drawer cylinder 20 Controlled atmosphere space is via multiple microporous connectivities.Micropore is also referred to as air equalizer opening, and each micropore can be millimetre-sized micro- Hole, such as a diameter of 0.1mm to 3mm of each micropore, preferably 1mm, 1.5mm etc..Multiple micropores are set to make controlled atmosphere Pressure in space is unlikely to too low, and the setting of multiple micropores will not also make the nitrogen in controlled atmosphere space empty to big storing Between 201 flowing, even if flowing be also that very little is even negligible, do not interfere with the guarantor of food in controlled atmosphere space Deposit.In some alternative embodiments of the present utility model, micropore can be also not provided with drawer cylinder 20, even if so, controlled atmosphere is protected Also there is the gases such as substantial amounts of nitrogen to exist in fresh space, user, without too sweat, compares when pulling the drawer out body 28 , then can be significantly laborsaving in existing vacuum storing room.

In some embodiments of the present utility model, storage space 201 is refrigerating space, and its storage temperature is general at 2 DEG C It it is preferably 3 DEG C to 8 DEG C between 10 DEG C.Further, casing 80 can also limit reefer space 12 and alternating temperature space 27, cold Freeze the lower section that space 12 is arranged at storage space 201, alternating temperature space 27 is arranged between reefer space 12 and refrigerating space.Freezing Temperature range in space 12 is general at -14 DEG C to -22 DEG C.Alternating temperature space 27 can be adjusted according to demand, suitable to store Food.Compressor bin 24 is preferably provided at the back lower place of reefer space 12.In some alternative implementations of the present utility model In example, storage space 201 or reefer space or alternating temperature space, that is to say, that the temperature range of storage space 201 can control It is adjusted at -14 DEG C to -22 DEG C or according to demand.

In the utility model some embodiments, as shown in figure 8, oxygen-enriched membrane component 30 may be disposed at the upper of drawer cylinder 20 Portion, to make its escape pipe 120 pass through the upper wall of drawer cylinder 20, to be connected to aspiration pump 10 by pipeline 50.Replaced at some For in property embodiment, the other positions that oxygen-enriched membrane component 30 may be disposed in drawer cylinder 20.

Pipeline 50 may include vertical pipeline section.Vertical pipeline section is arranged at the rear of storage space 201, and the lower end of vertical pipeline section With the inlet communication of aspiration pump 10, the top of vertical pipeline section is connected with the escape pipe 120 of oxygen-enriched membrane component 30.Vertical pipeline section can face Side shell and backboard are set in nearly casing 80, can be set with muff or insulating tube on vertical pipeline section, can be prevented oxygen in vertical pipeline section Cold in gas is transferred to side shell and backboard, can prevent condensation.

In some embodiments of the present utility model, refrigerating device also includes blower fan (not shown), and it, which is arranged on, takes out In drawer cylinder 20, configuration promotes the air circulation in controlled atmosphere space, or gas directly is blowed into oxygen-enriched membrane component 30, with Accelerate oxygen separation speed.Blower fan can be embedded on the roof of drawer cylinder 20.

So far, although those skilled in the art will appreciate that herein it is detailed have shown and described it is of the present utility model many Individual exemplary embodiment, still, still can be public according to the utility model in the case where not departing from the utility model spirit and scope The content opened directly determines or derived many other variations or modifications for meeting the utility model principle.Therefore, this practicality is new The scope of type is understood that and regarded as to cover other all these variations or modifications.

Claims (10)

1. a kind of oxygen-enriched membrane component, it is characterised in that including：

Supporting shell, defining inside it on chamber, and its shell wall has multiple hollow out openings and a connection chamber The escape pipe of interior or exterior space；With

Oxygen permeable membrane, it coats the supporting shell, with the whole for closing the supporting shell hollow out opening, so that the chamber An oxygen rich gas collecting chamber is constituted, the oxygen rich gas collecting chamber is only in communication with the outside by the escape pipe；

The oxygen-enriched membrane component is configured to：Make the oxygen relative nitrogen in the oxygen rich gas collecting chamber surrounding space air-flow more Ground enters the oxygen rich gas collecting chamber through the oxygen permeable membrane.

2. oxygen-enriched membrane component according to claim 1, it is characterised in that

The supporting shell is spherical shell, square shell, arc shell or fold-line-shaped shell.

3. oxygen-enriched membrane component according to claim 1, it is characterised in that

The multiple hollow out opening is circular hole or strip hole.

4. oxygen-enriched membrane component according to claim 3, it is characterised in that

The multiple hollow out opening is uniformly distributed on the shell wall of the supporting shell.

5. oxygen-enriched membrane component according to claim 1, it is characterised in that

The oxygen permeable membrane is integral part, and the shell wall of the supporting shell is all coated on the inside of the oxygen permeable membrane.

6. oxygen-enriched membrane component according to claim 1, it is characterised in that

The quantity of the oxygen permeable membrane is multiple, and each oxygen permeable membrane is used to close a hollow out opening.

7. oxygen-enriched membrane component according to claim 1, it is characterised in that

The oxygen permeable membrane is pasted onto on the shell wall of the supporting shell.

8. a kind of refrigerating device, it is characterised in that including：

Casing, defines in storage space, the storage space in it and is provided with controlled atmosphere space；

The oxygen-enriched membrane component according to any one of claim 1 to 7, its surrounding space is connected with the controlled atmosphere space； With

Aspiration pump, its inlet end is connected via pipeline with the escape pipe of the oxygen-enriched membrane component, will be penetrated described oxygen-enriched The gas of gas collection intracavitary is pumped to the controlled atmosphere outside.

9. refrigerating device according to claim 8, it is characterised in that also include：

Drawer appliance, it includes drawer cylinder and the drawer body being slidably mounted in the drawer cylinder, the drawer The controlled atmosphere space is defined in body；And

The oxygen-enriched membrane component is arranged in the drawer cylinder.

10. refrigerating device according to claim 9, it is characterised in that also include：

Blower fan, it is arranged in the drawer cylinder, is configured to blow to the gas in the controlled atmosphere space described oxygen-enriched Membrane module.