CN206291596U - 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 spaced two oxygen permeable membranes；And support frame, it is arranged between two oxygen permeable membranes and is supported with to two oxygen permeable membranes, and support frame defines outlet chamber, and support frame limits multiple oxygen rich gas collecting chambers arranged around outlet chamber and directly connected with outlet chamber respectively jointly with two oxygen permeable membranes；Oxygen-enriched membrane component is configured to：After the oxygen relative nitrogen in oxygen rich gas collecting chamber surrounding space air-flow is more entered oxygen rich gas collecting chamber through oxygen permeable membrane, then discharged through outlet chamber.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 to storing the fresh-keeping requirement of food also more and more higher, especially It is the requirement also more and more higher of color and luster, mouthfeel to food etc..Therefore, the food of storage should also be as ensureing during storing, eating Color and luster, mouthfeel, freshness of thing etc. keep constant as far as possible.

In the preservation technique 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 more long.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, generally using vacuum freshness retaining or extra set 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 in general manner the atmosphere (gas componant by adjusting closing space residing for storage thing 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, obtain being different from the atmosphere of normal air constituent by various regulative modes, to suppress to cause storage thing (usually to be eaten Material) putrid and deteriorated physiological and biochemical procedure and microorganism activity.Especially, in this application, the controlled atmosphere for being discussed will Specifically designed in the controlled atmosphere technology being adjusted to gas component ratio.

Those skilled in the art know that normal air constituent includes (pressing 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 obtains the fresh-keeping gas of rich nitrogen oxygen deprivation using nitrogen-rich gas are filled with to closing space by the way of reducing oxygen content Atmosphere.Here, those skilled in the art know that 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 is more than the gas atmosphere of nitrogen content, oxygen content less than oxygen content in above-mentioned normal air 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 it is up to this point, huge due to being conventionally used to the equipment of making nitrogen volume of controlled atmosphere 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 solving always But the technical barrier of the solution that fails all the time.

Utility model content

A purpose of the present utility model is directed to the drawbacks described above of prior art presence, 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 the oxygen permeable membrane group that a kind of small volume, intensity are high and deaerating effect is good 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：

Spaced two oxygen permeable membranes；With

Support frame, it is arranged between two oxygen permeable membranes and is supported with to two oxygen permeable membranes, and support frame defines outlet Chamber, support frame and two oxygen permeable membranes limit jointly it is multiple arranged around outlet chamber and directly connected with outlet chamber respectively it is oxygen-enriched Gas collection chamber；

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 after oxygen rich gas collecting chamber, then is discharged through outlet chamber.

Alternatively, support frame includes the outer rim of closure；The central support portion of outlet chamber is defined, it is arranged on outer rim Within the space for being surrounded；With multiple support spoke, the two ends of each support spoke are connected to outer rim and central supporting Portion；The edge seal of two oxygen permeable membranes is connected to the both sides of outer rim, and inner surface is attached and is fixed on support spoke, so that per phase An oxygen rich gas collecting chamber is formed between two adjacent support spokes.

Alternatively, outer rim is circular ring structure；And central support portion is located at the circle centre position of outer rim.

Alternatively, each support spoke radially extending along outer rim；And per the angle between two neighboring support spoke It is equal, so that the volume of whole oxygen rich gas collecting chambers is equal.

Alternatively, central support portion includes the first plate body and the second plate body that parallel interval is set, the first plate body and second Outlet chamber is defined between plate body；The escaping pipe of connection outlet chamber is provided with first plate body；And the end of each support spoke The edge of the first plate body and the second plate body is connected to, so that each oxygen rich gas collecting chamber connection outlet chamber.

Alternatively, support frame is the single piece formed using integrated injection molding technique.

Alternatively, the thickness of outer rim is resisted against more than the thickness of support spoke with the outer peripheral edge for allowing each oxygen permeable membrane The inner side of outer rim.

Alternatively, each oxygen permeable membrane is attached at support spoke and outer rim in the way of pasting.

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

Casing, defines storage space in it, controlled atmosphere space is provided with 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 outlet chamber of oxygen-enriched membrane component, will penetrate oxygen rich gas collection Gas in chamber is pumped to controlled atmosphere outside.

Alternatively, refrigerating device also includes drawer appliance, and it includes drawer cylinder and is slidably mounted on drawer Drawer body in cylinder, defines controlled atmosphere space in drawer body, be provided with the roof of drawer cylinder and protected with controlled atmosphere The accommodating chamber of fresh space connection, to house oxygen-enriched membrane component, offered in the wall between accommodating chamber and controlled atmosphere space to Few first passage and at least one second passages being spaced apart with least one first passages, with respectively in difference Position connects accommodating chamber and controlled atmosphere space；And blower fan, it is arranged in accommodating chamber, to promote the gas in controlled atmosphere space Successively controlled atmosphere space is returned to via at least one first passages, accommodating chamber and at least one second passages.

Oxygen-enriched membrane component of the present utility model is supported using support frame to the oxygen permeable membrane of thinner thickness, makes it more steady Gu.In addition, by setting multiple oxygen rich gas collecting chambers between two-layer oxygen permeable membrane, and be allowed to be centered around around outlet chamber, Each oxygen rich gas collecting chamber can be made can directly be connected with outlet chamber, allow gas to it is enough it is more smooth promptly flow out, make richness The different zones of oxygen film can efficiently carry out oxygen separation process, improve oxygen separation effect.

Further, in oxygen-enriched membrane component of the present utility model, using the outer rim of closure, multiple support spoke and one Central support portion is to limit multiple oxygen rich gas collecting chambers, simple structure, it is easy to make.

In addition, refrigerating device of the present utility model is because have oxygen-enriched membrane component and aspiration pump, aspiration pump can make richness The pressure of oxygen film side is less than opposite side, so as to can make to form the gas that rich nitrogen oxygen deprivation is beneficial to food fresh-keeping in controlled atmosphere space Body atmosphere, the atmosphere reduces the intensity of fruit/vegetable aerobic breathing by reducing the content of oxygen in fruits and vegetables shelf space, while Ensure the respiration on basis, prevent fruits and vegetables from carrying out anaerobic respiration, so as to reach the purpose of fruits and vegetables long-period freshness preserving.

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.And, solve 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 well-suited to 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

Describe some specific realities of the present utility model in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter 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 view sub-anatomy of oxygen-enriched membrane component shown in Fig. 1；

Fig. 4 is the A portions enlarged drawing of Fig. 3；

Fig. 5 is the schematic local structural graph of the refrigerating device according to the utility model one embodiment；

Fig. 6 is the schematic diagram at another visual angle of structure shown in Fig. 5；

Fig. 7 is the schematic local structural graph of the refrigerating device according to the utility model one embodiment；

Fig. 8 is the schematic, exploded of structure shown in Fig. 7.

Specific embodiment

Fig. 1 is the structural representation of the oxygen-enriched membrane component according to the utility model one embodiment；Fig. 2 is rich shown in Fig. 1 The decomposing schematic representation of oxygen membrane module；Fig. 3 is the view sub-anatomy of oxygen-enriched membrane component shown in Fig. 1；Fig. 4 is the A portions enlarged drawing of Fig. 3. As shown in Figures 1 to 4, oxygen-enriched membrane component of the present utility model 30 may include in general manner spaced two oxygen permeable membranes 200, 300 and it is arranged on support frame 100 between oxygen permeable membrane 200,300 to be supported to two oxygen permeable membranes 200,300.Support frame 100 define outlet chamber 102, and support frame 100 and two oxygen permeable membranes 200,300 limit multiple around the cloth of outlet chamber 102 jointly The oxygen rich gas collecting chamber 101 put and directly connected with outlet chamber 102 respectively.Oxygen-enriched membrane component 30 is configured to make oxygen rich gas Oxygen relative nitrogen in the surrounding space air-flow of collecting chamber 101 more enters oxygen rich gas and collects through oxygen permeable membrane 200,300 Behind chamber 101, then discharged through outlet chamber 102.As the gas in oxygen rich gas collecting chamber 101 is extracted, oxygen rich gas collecting chamber 101 will in the oxygen in negative pressure state, therefore the surrounding space air-flow of oxygen-enriched membrane component 30 will continue through oxygen permeable membrane 200, 300 enter in oxygen rich gas collecting chamber 101.Certainly, it is generally sharp to enable above-mentioned oxygen separation process continuously to carry out Outlet chamber 102 is connected with aspiration pump so that the gas in oxygen rich gas collecting chamber 101 is extracted out in time, negative pressure is manufactured wherein Environment.

In the utility model embodiment, each oxygen permeable membrane 200,300 can be monofilm or multilayer film.Oxygen permeable membrane for All gas all can be infiltration, and simply gas with various has different penetration degrees.Gas permeation oxygen permeable membrane is one multiple Miscellaneous process, its through mechanism be usually gas molecule be adsorbed to first oxygen permeable membrane surface dissolving, then in oxygen permeable membrane Diffusion, finally desorbs from the opposite side of oxygen permeable membrane.Oxygen-enriched membrane separation technique dissolved in oxygen permeable membrane by gas with various and The difference of diffusion coefficient realizes the separation of gas.When mixed gas are made in certain driving force (pressure differentials of oxygen permeable membrane both sides) Under, after the quickish gas of infiltration rate such as oxygen, hydrogen, helium, hydrogen sulfide, carbon dioxide transmission oxygen permeable membrane, in richness The per-meate side of oxygen film is enriched with, and the relatively slow gas of infiltration rate such as nitrogen, carbon monoxide etc. are trapped in the stagnant of oxygen permeable membrane Side is stayed to be enriched with so as to reach the purpose of mixed gas separation.

Because the thickness of oxygen permeable membrane is typically relatively thin, the utility model embodiment by set support frame 100 ensure that it is oxygen-enriched Film obtains enough supports, even if can also remain foot in the case where the internal negative pressure of oxygen rich gas collecting chamber 101 is larger Enough intervals, mutually stick together without stress.

In addition, in the utility model embodiment, support frame 100 divides the Classified Spaces between two oxygen permeable membranes 200,300 Multiple oxygen rich gas collecting chambers 101 are divided into, and each oxygen rich gas collecting chamber 101 is directly connected with outlet chamber 102, so Enable the volume of each oxygen rich gas collecting chamber 101 smaller so that gas therein is more smooth promptly flows out, so that The regional of oxygen permeable membrane 200,300 can efficiently carry out oxygen separation process, improve oxygen separation effect.

In certain embodiments, collected to form above-mentioned multiple oxygen rich gas between two oxygen permeable membranes 200,300 Chamber 101, support frame 100 may include outer rim 110, central support portion 120 and multiple support spokes 130.Wherein, outer rim 110 is closing structure (such as square frame or round frame).Central support portion 120 is arranged on outer rim 110 and encloses in the space for setting, and defines Foregoing outlet chamber 102.The two ends of each support spoke 130 are connected to outer rim 110 and central support portion 120 (can be with Outer rim 110 and central support portion 120 are integrally formed).The edge of two oxygen permeable membranes 200,300 is sealedly attached to outer rim 110 both sides, the inner surface of oxygen permeable membrane 200,300 is attached and is fixed on support spoke 130, so that per two adjacent supporting spokes An oxygen rich gas collecting chamber 101 is formed between bar 130, and multiple support spokes 130 can provide foot to oxygen permeable membrane 200,300 Enough supports.

Each oxygen permeable membrane 200,300 can be adopted and be attached at support spoke 130 and outer rim 110 in the method for paste, to protect The air-tightness of oxygen-enriched membrane component 30 is demonstrate,proved, makes that inside and outside oxygen permeable membrane 200,300 enough pressure differentials can be formed.Certainly, this practicality is new The oxygen-enriched membrane component 30 of type embodiment be used for refrigerator food it is fresh-keeping middle when, the fluid sealant for being used will ensure food grade standard, i.e., Ensure that fluid sealant does not produce peculiar smell and noxious volatile material.

As shown in Figure 1 to Figure 3, in certain embodiments, can make foregoing outer rim 110 for circular ring structure, and can make Centre supporting part 120 is located at the circle centre position of outer rim 110, that is, form the structure of similar wheel, in order to multiple richnesses that make and arrange Carrier of oxygen collecting chamber 101.

Further, each support spoke 130 (and can prolong along the radially extending of the outer rim 110 of annular along straight line Stretch), and it is equal per the angle between two neighboring support spoke 130, so that the volume phase of whole oxygen rich gas collecting chambers 101 Deng.The gas pressure intensity that outlet chamber 102 is flow to from each oxygen rich gas collecting chamber 101 is tended to identical, be easy to each road Gas is preferably merged and is smoothly discharged out in outlet chamber 102.

Certainly, in some alternate embodiments, support spoke 130 can also be made along curve extension, not along outer rim 110 Radially extend, or can also make outer rim 110 be the other shapes such as square, oval, these deformations are no longer introduced herein Structure.In certain embodiments, as shown in Figure 3 and Figure 4, central support portion 120 includes the first plate body 121 that parallel interval is set With the second plate body 122, outlet chamber 102 is defined between the first plate body 121 and the second plate body 122.The end of each support spoke 130 Portion is connected to the edge of the first plate body 121 and the second plate body 122, so that each oxygen rich gas collecting chamber 101 connection outlet chamber 102.Specifically, the end portion width of support spoke 130 can be made less than the width of other parts, so that end is clamped in the first plate Between the plate body 122 of body 121 and second.In addition, it is also provided with connecting the escaping pipe 123 of outlet chamber 102 on the first plate body 121, Escaping pipe 123 is used to be connected with aspiration pump.

First plate body 121 and the second plate body 122 can be Circular plate structure, and resigning circular hole 210 can be offered on oxygen permeable membrane 200, After oxygen permeable membrane 200 is installed, the edge of resigning circular hole 210 is resisted against on the periphery of the first plate body 121.Similarly, it is rich Resigning circular hole 220 can be offered on oxygen film 300, its edge against with the periphery of the second plate body 122 on.

In certain embodiments, as shown in Figure 3 and Figure 4, the thickness a of outer rim 110 can be more than the thickness of support spoke 130 Degree, step is formed with the junction in support spoke 130 and outer rim 110, be easy to by the outer peripheral edge of oxygen permeable membrane 200,300 against In the inner side of outer rim 110, so that oxygen permeable membrane 200,300 is preferably fixed.

In the utility model embodiment, support frame 100 (including outer rim 110, support spoke 130, the first plate body 121, Second plate body 122 and escaping pipe 123) it is the single piece formed using integrated injection molding technique, to facilitate design and process.

The oxygen-enriched membrane component 30 of the utility model embodiment is mainly used in realizing the separation of constituent of air, can by the component To adjust the content of oxygen/nitrogen/carbon dioxide in air, and then it is applied to different application scenarios (for example；Oxygen-enriched environment； Lung ventilator/fresh keep-alive/heavy-oxygen-enriched water etc., low-oxygen environment；Controlled atmosphere/fire-retardant environment；Rich nitrogen environment；Carbon dioxide enriched environment Deng).Due to the small volume of oxygen-enriched membrane component 30 of the utility model embodiment, therefore it is very suitable for the food fresh keeping for refrigerator.

On the other hand the utility model provides a kind of refrigerating device.Fig. 5 is according to one implementation of the utility model The schematic local structural graph of the refrigerating device of example；Fig. 6 is the schematic diagram at another visual angle of structure shown in Fig. 5； Fig. 7 is the schematic local structural graph of the refrigerating device according to the utility model one embodiment；Fig. 8 is knot shown in Fig. 7 The schematic, exploded of structure.As shown in Fig. 5 to Fig. 8, the refrigerating device of the utility model embodiment may include casing 80, door Body, oxygen-enriched membrane component 30, aspiration pump 10 and refrigeration system.

Storage space 201 is defined in casing 80.Door body is used to open or close storage space 201.Further, storing Being set in space 201 has controlled atmosphere space.Controlled atmosphere space can be hermetic type space or approximate hermetic type space.It is preferred that Ground, container for storing is drawer appliance.Drawer appliance includes drawer cylinder 20 and drawer body 28.Drawer body 28 defines foregoing Controlled atmosphere space.Drawer cylinder 20 can have preceding to opening, and be arranged in storage space 201, specifically may be disposed at storage The bottom of object space 201.As one skilled in the art will recognize that, drawer cylinder 20 may also set up in storage space 201 Middle part or top.Drawer body 28 is slidably disposed in drawer cylinder 20, can be grasped with from the forward direction opening of drawer cylinder 20 Make ground outwards to extract out and be inwardly inserted into drawer cylinder 20.Drawer body 28 can have drawer end cap, and drawer end cap can be with drawer cylinder The opening of body 20 is engaged, to carry out the closed of 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 to providing cold in storage space 201.For example when When the refrigerating device is family expenses compression direct cooling refrigerator, evaporator may be disposed at the inner side of casing 80.When the refrigerating When device is family expenses compression wind cooling refrigerator, also there is evaporator room in casing 80, evaporator room passes through air path system and storing Space 201 is connected, and evaporator is set in evaporator room, and exit is provided with blower fan, system is circulated with to storage space 201 It is cold.

Aspiration pump 10 may be disposed in compressor bin 13.The inlet end of aspiration pump 10 is via pipeline 50 and oxygen-enriched membrane component 30 Outlet chamber 102 connect, will penetrate the gas in each oxygen rich gas collecting chamber 101 pump out to controlled atmosphere space it Outward.Outwards it is evacuated using aspiration pump 10, the pressure of each oxygen rich gas collecting chamber 101 can be made less than around oxygen-enriched membrane component 30 The pressure in space, further, can make the oxygen in the surrounding space of oxygen-enriched membrane component 30 enter oxygen rich gas collecting chamber 101.By Connected with the surrounding space of oxygen-enriched membrane component 30 in controlled atmosphere space, the air in controlled atmosphere space can enter oxygen-enriched membrane component 30 surrounding spaces, therefore the oxygen in the air in controlled atmosphere space is entered oxygen rich gas collecting chamber 101, so that The atmosphere that rich nitrogen oxygen deprivation is beneficial to food fresh-keeping is obtained in controlled atmosphere space.

Refrigerating device of the present utility model can make the rich nitrogen oxygen deprivation of formation in controlled atmosphere space be beneficial to food fresh-keeping Atmosphere, the atmosphere reduces the intensity of fruit/vegetable aerobic breathing by reducing the content of oxygen in fruits and vegetables shelf space, 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.And, 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 well-suited to 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- A diameter of 0.1mm to 3mm in hole, such as each micropore, preferably 1mm, 1.5mm etc..Setting multiple micropores can 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 even negligible very little, 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, user, without too sweat, compares when body 28 is pulled the drawer out in fresh space In existing vacuum storing room, then can be significantly laborsaving.

In some embodiments of the present utility model, storage space 201 is refrigerating space, and its storage temperature is general at 2 DEG C To between 10 DEG C, 3 DEG C to 8 DEG C are preferably.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 substituting implementations of the present utility model In example, storage space 201 is alternatively 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 some embodiments of the present utility model, as shown in Figure 7 and Figure 8, oxygen-enriched membrane component 30 may be disposed at drawer cylinder On the barrel wall of body 20.Oxygen-enriched membrane component 30 can horizontally be arranged at the roof of drawer cylinder 20.Specifically, drawer cylinder 20 Accommodating chamber 22 is provided with roof, to house oxygen-enriched membrane component 30.For example, in the accommodating chamber and controlled atmosphere of the roof of drawer cylinder 20 At least one first passages 23 and the second passage 24 are offered in wall between fresh-keeping space.At least one first ventilations Hole 23 is spaced apart with least one second passages 24, with respectively in diverse location connection accommodating chamber 22 and controlled atmosphere space. First passage 23 and the second passage 24 are aperture, and quantity can be multiple.In some alternate embodiments, drawer The roof inner side of cylinder 20 has recessed groove.Oxygen-enriched membrane component 30 is arranged in the recessed groove of the roof of 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 pipeline section vertically With the inlet communication of aspiration pump 10, the top of vertical pipeline section connects with the outlet chamber 102 of oxygen-enriched membrane component 30.Vertical pipeline section can face Side shell and backboard are set in nearly casing 80, and muff or insulating tube can be set with vertical pipeline section, can prevent 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, in order to promote the gas stream in controlled atmosphere space and accommodating chamber 22 Dynamic, refrigerating device may also include blower fan 60, and blower fan 60 may be disposed in accommodating chamber, be configured to promote controlled atmosphere space Gas enters accommodating chamber 22 via the first passage 23, and the gas in accommodating chamber 22 is entered controlled atmosphere via the second passage 24 Fresh-keeping space.That is, blower fan 60 can promote the gas in controlled atmosphere space successively via at least one first passages 23, Accommodating chamber and at least one second passage 24 return to controlled atmosphere space.

Blower fan 60 is preferably centrifugal blower, is arranged in accommodating chamber 22 at first passage 23.That is, centrifugal blower Positioned at the top of at least one first passages 23, and rotation axis is straight down, and air inlet is right against the first passage 23.From The gas outlet of heart blower fan can be towards controlled atmosphere membrane module 30.Controlled atmosphere membrane module 30 is arranged at the top of at least one second passages 24 And cause each controlled atmosphere film of controlled atmosphere membrane module 30 parallel to the roof of drawer cylinder 20.At least one first passages 23 are set Anterior in roof, at least one second passages 24 are arranged at roof rear portion.That is, before centrifugal blower is arranged at accommodating chamber 22 Portion, controlled atmosphere membrane module 30 is arranged at the rear portion of accommodating chamber 22.Further, the roof of drawer cylinder 20 includes main board portion 25 and lid Plate portion 26, is formed with depressed part in a regional area of main board portion 25, ceiling plate portion 26 is removably covered on depressed part, with shape Into accommodating chamber 22.For the ease of the making of drawer cylinder 20, main board portion 25 can be with the side wall of drawer cylinder 20, bottom wall, rear wall one It is body formed.

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, but, in the case where the utility model spirit and scope are not departed from, still can be public according to the utility model The content opened directly determines or derives many other variations or modifications for meeting the utility model principle.Therefore, this practicality is new The scope of type is understood that and regards as covering all these other variations or modifications.

Claims (10)

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

Spaced two oxygen permeable membranes；With

Support frame, it is arranged between two oxygen permeable membranes and is supported with to two oxygen permeable membranes, support frame as described above limit Surely have an outlet chamber, support frame as described above and described two oxygen permeable membranes limit jointly it is multiple arranged around the outlet chamber and respectively with The oxygen rich gas collecting chamber that the outlet chamber is directly connected；

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 After ground enters the oxygen rich gas collecting chamber through the oxygen permeable membrane, then discharged through the outlet chamber.

2. oxygen-enriched membrane component according to claim 1, it is characterised in that support frame as described above includes：

The outer rim of closure；

The central support portion of the outlet chamber is defined, it is arranged within the space that the outer rim is surrounded；With

Multiple support spoke, the two ends of each support spoke are connected to the outer rim with the central support portion；

The edge seal of two oxygen permeable membranes is connected to the both sides of the outer rim, and inner surface is attached and is fixed on the support Spoke, so as to form an oxygen rich gas collecting chamber per between two adjacent support spokes.

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

The outer rim is circular ring structure；And

The central support portion is located at the circle centre position of the outer rim.

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

Each described support spoke radially extending along the outer rim；And

It is equal per the angle between the two neighboring support spoke, so that all volume phases of the oxygen rich gas collecting chamber Deng.

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

The central support portion includes the first plate body and the second plate body that parallel interval is set, first plate body and described second The outlet chamber is defined between plate body；

The escaping pipe for connecting the outlet chamber is provided with first plate body；And

The end of each support spoke is connected to the edge of first plate body and second plate body, so that described in each Oxygen rich gas collecting chamber connects the outlet chamber.

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

Support frame as described above is the single piece formed using integrated injection molding technique.

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

The thickness of the outer rim is resisted against more than the thickness of the support spoke with the outer peripheral edge for allowing each oxygen permeable membrane The inner side of the outer rim.

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

Each described oxygen permeable membrane is fixed on support spoke and the outer rim in the way of pasting.

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

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

The oxygen-enriched membrane component according to any one of claim 1 to 8, its surrounding space is connected with the controlled atmosphere space； With

Aspiration pump, its inlet end is connected via pipeline with the outlet chamber of the oxygen-enriched membrane component, will be penetrated described oxygen-enriched Gas in gas collection chamber is pumped to the controlled atmosphere outside.

10. refrigerating device according to claim 9, 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, is provided with the roof of the drawer cylinder and is connected with the controlled atmosphere space Accommodating chamber, with house the oxygen-enriched membrane component, offered in the wall between the accommodating chamber and the controlled atmosphere space At least one first passages and at least one second passages being spaced apart with the first passage described at least one, with respectively The accommodating chamber and the controlled atmosphere space are connected in diverse location；With

Blower fan, it is arranged in the accommodating chamber, to promote the gas in the controlled atmosphere space successively via described at least one Individual first passage, the accommodating chamber and at least one second passage return to the controlled atmosphere space.