CN206362048U - Refrigerator - Google Patents

Abstract

The utility model provides a kind of refrigerator.Wherein the refrigerator includes：Casing, defines to be provided with storage space and compressor bin, storage space inside container for storing, and container for storing inside it and defines fresh-keeping space；Controlled atmosphere membrane module, with least one controlled atmosphere film and an oxygen rich gas collecting chamber, and the oxygen being arranged so that in controlled atmosphere membrane module surrounding space air-flow more enters oxygen rich gas collecting chamber relative to nitrogen therein through controlled atmosphere film；And pump group part is evacuated, the gas in oxygen rich gas collecting chamber is pumped to outside fresh-keeping space by aspiration pump, the ratio between nitrogen content and oxygen content in fresh-keeping space is more than 78/21.Refrigerator of the present utility model, rich nitrogen oxygen deprivation can be realized in fresh-keeping space is beneficial to the fresh-keeping atmosphere of food materials, can improve the storage effect of food materials, lift the usage experience of user.

Description

Refrigerator

Technical field

The utility model is related to article field of storage, more particularly to a kind of refrigerator.

Background technology

As social development and people's living standard are increasingly improved, and the rhythm of life of people is more and more faster, Ren Menjing Substantial amounts of article can be often bought to be placed in all kinds of refrigerators, but for leafy vegetable and melon and fruit based food, the storing of refrigerator Low temperature in space can not only make the epidermis of these foods the phenomenon of corrugation and spot occur, can also influence their original tastes And nutrition.

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 volume are generally utilized in the prior art It is fresh-keeping that outer setting device for deoxidizing carries out hypoxemia.However, the operation of vacuum freshness retaining is typically more cumbersome, using being inconvenient；And take off Oxygen device generally carries out deoxygenation using electrolyte etc., and 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.

But it is bulky, with high costs to be conventionally used for the equipment of making nitrogen of controlled atmosphere, cause the technology substantially also It is limited to use on various large-scale professional storages (typically at least more than 30 tons of storage capacity), is not particularly suited for family Or personal user.

Utility model content

A purpose of the present utility model is to provide the air-conditioning fresh-keeping refrigerator of simplicity.

The utility model one is further objective is that the storage effect of article in refrigerator will be improved.

Especially, the utility model provides a kind of refrigerator, and the refrigerator includes：Casing, defines storage space inside it And compressor bin, it is provided with inside container for storing, and container for storing in storage space and defines fresh-keeping space；Door body, is arranged at The preceding surface of casing, for closing storage space；Controlled atmosphere membrane module, is installed on container for storing and its surrounding space and fresh-keeping space Connection, controlled atmosphere membrane module has at least one controlled atmosphere film and an oxygen rich gas collecting chamber, and is arranged so that controlled atmosphere membrane module Oxygen in surrounding space air-flow more enters oxygen rich gas collecting chamber relative to nitrogen therein through controlled atmosphere film；And take out Air pump assembly, is arranged in compressor bin, and pumping pump group part includes aspiration pump, and the entrance point of aspiration pump is cut via pipeline and pipeline Converting mechanism is controllably connected with oxygen rich gas collecting chamber, and the gas in oxygen rich gas collecting chamber is pumped to outside fresh-keeping space, The ratio between nitrogen content and oxygen content in fresh-keeping space is set to be more than 78/21, wherein nitrogen content and oxygen in fresh-keeping space Content sum is more than or equal to 83%.

Alternatively, the ratio between nitrogen content in fresh-keeping space and oxygen content are more than or equal to 4.26 and are less than or equal to 49。

Alternatively, controlled atmosphere membrane module is oxygen-enriched membrane component, and at least one controlled atmosphere film is at least one oxygen permeable membrane.

Alternatively, oxygen-enriched membrane component also includes：Support frame, it has the first surface and second surface being parallel to each other, And be formed with support frame respectively on the first surface extend, extend on a second surface, and through support frame with even Multiple gas channels of logical first surface and second surface, multiple gas channels are collectively forming oxygen rich gas collecting chamber, and extremely A few oxygen permeable membrane is two planar shaped oxygen permeable membranes, is laid on respectively on the first surface and second surface of support frame.

Alternatively, container for storing is sealed drawer, and fresh-keeping space is limited by sealed drawer.

Alternatively, casing includes：Inner bag, limits storage space in it.

Alternatively, sealed drawer includes：Drawer cylinder, with preceding to opening, and is fixed on inner bag, defines in it fresh-keeping Space；And drawer body, it is slidably mounted in drawer cylinder, it is operationally outside with the forward direction opening from drawer cylinder Extract and be inwardly inserted into drawer cylinder out.

Alternatively, multiple air equalizer openings are offered on drawer cylinder, to connect storage space and fresh-keeping space.

Alternatively, the accommodating chamber connected with fresh-keeping space is provided with the roof of drawer cylinder, with accommodating controlled atmosphere membrane module, And offered in the wall between the accommodating chamber of the roof of drawer cylinder and fresh-keeping space at least one first passage and with extremely Few first passage at least one second passage spaced apart, with respectively in diverse location connection accommodating chamber and fresh-keeping sky Between；Refrigerator also includes blower fan, is arranged in accommodating chamber, to promote the gas in fresh-keeping space successively via at least one the first ventilation Hole, accommodating chamber and at least one second passage return to fresh-keeping space.

Alternatively, pumping pump group part also includes：Mounting base, the bottom of compressor bin is installed on by multiple shock absorption footpads Face；And seal box, mounting base is installed on, and aspiration pump is installed in seal box.

Refrigerator of the present utility model, makes the oxygen in fresh-keeping space more relative to nitrogen therein by controlled atmosphere membrane module Ground enters oxygen rich gas collecting chamber through controlled atmosphere film, and by aspiration pump is pumped to the gas in oxygen rich gas collecting chamber fresh-keeping Outside space, so that the ratio between nitrogen content in fresh-keeping space and oxygen content are more than 78/21, it can be realized in fresh-keeping space The atmosphere fresh-keeping beneficial to food materials of rich nitrogen oxygen deprivation, can improve the storage effect of food materials, lift the usage experience of user.

Further, the ratio between nitrogen content in refrigerator of the present utility model, fresh-keeping space and oxygen content are more than or waited In 4.26 and less than or equal to 49, the ratio between nitrogen content in fresh-keeping space and oxygen content is set to be in above range, can be with The intensity of food materials aerobic respiration is effectively reduced, while the respiration on basis can also be ensured, it is to avoid food materials carry out anaerobic respiration, So as to extend the freshness date of food materials, in addition, pumping pump group part is arranged in compressor bin, do not take additionally elsewhere, therefore The additional volumes of refrigerator will not be increased, the compact conformation of refrigerator can be made.

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 schematic diagram of the refrigerator according to the utility model one embodiment；

Fig. 2 is the schematic local structural graph of the refrigerator according to the utility model one embodiment；

Fig. 3 is the schematic diagram at another visual angle of structure shown in Fig. 2；

Fig. 4 is the structural representation of sealed drawer in the refrigerator according to the utility model one embodiment；

Fig. 5 is the schematic, exploded of the sealed drawer shown in Fig. 4；

Fig. 6 is the attachment structure signal of sealed drawer and aspiration pump in the refrigerator according to another embodiment of the utility model Figure；

Fig. 7 is the schematic diagram of controlled atmosphere membrane module in the refrigerator according to the utility model one embodiment；

Fig. 8 is the schematic, exploded of controlled atmosphere membrane module shown in Fig. 7；

Fig. 9 is the schematic diagram of support frame in controlled atmosphere membrane module shown in Fig. 8；

Figure 10 is the schematic diagram of the support frame in controlled atmosphere membrane module shown in Fig. 8 from another angle；And

Figure 11 is the structural representation of pumping pump group part in the refrigerator according to the utility model one embodiment.

Embodiment

A kind of refrigerator is present embodiments provided, can be by oxygen content in fresh-keeping space and the tune of nitrogen content ratio Section realizes controlled atmosphere function.Fig. 1 is the schematic diagram of the refrigerator 100 according to the utility model one embodiment；Fig. 2 is According to the schematic local structural graph of the refrigerator 100 of the utility model one embodiment；Fig. 3 is that the another of structure shown in Fig. 2 regards The schematic diagram at angle；Fig. 4 is the structural representation of sealed drawer 11 in the refrigerator 100 according to the utility model one embodiment Figure；Fig. 5 is the schematic, exploded of the sealed drawer 11 shown in Fig. 4；Fig. 6 is the ice according to another embodiment of the utility model The attachment structure schematic diagram of sealed drawer 11 and aspiration pump 41 in case.As shown in Figures 1 to 6, the refrigerator 100 in general manner can be with Including：Casing 10, door body, controlled atmosphere membrane module 30 and pumping pump group part 40.

Wherein, storage space 102 and compressor bin 103 are defined inside casing 10.The quantity and knot of storage space 102 Structure can be configured according to demand, and Fig. 1 shows the feelings in the first space set gradually up and down, second space and the 3rd space Condition；Above storage space is configurable to refrigerating space, reefer space, alternating temperature space or fresh-keeping space according to purposes difference. Each storage space can be divided into multiple storage areas by demarcation strip, utilize rack or drawer storage article.This implementation It is provided with the storage space of example inside container for storing, and container for storing and defines fresh-keeping space.As shown in Fig. 2 storing holds Device can be sealed drawer 11, and fresh-keeping space is limited by sealed drawer 11.In some optional embodiments, above-mentioned fresh-keeping sky Between can also be limited by seal box, hermetically sealed can, seal box etc..

Door body is arranged at the preceding surface of casing 10, for closing storage space 102.Door body corresponding with storage space can be set Put, i.e., each storage space is to that there should be one or more door body.And quantity, the work(of storage space of storage space and door body Energy can be by concrete condition actual selection.The present embodiment refrigerator 100 correspondence above and below set gradually the first space, second space, 3rd space, is respectively arranged with the first door body 21, the second door body 22, the 3rd door body 23.Door body can be pivotally installed in casing Preceding surface, can also be opened, to realize the storage space of drawer type, the storage space of wherein drawer type is often set using drawer type It is equipped with metal sliding rail, it is ensured that effect is soft during drawer open and close, it is possible to reduce noise.The refrigerator of the present embodiment The door-opening mode in 100 the first space is opened for pivoted, and the door-opening mode in second space and the 3rd space is opened for drawer type.

Controlled atmosphere membrane module 30 has at least one controlled atmosphere film and an oxygen rich gas collecting chamber, and is configured to make controlled atmosphere film group Oxygen in the surrounding space air-flow of part 30 more enters oxygen rich gas collecting chamber relative to nitrogen therein through controlled atmosphere film.Its Middle controlled atmosphere membrane module 30 is installed on container for storing, and its surrounding space is connected with fresh-keeping space.In the present embodiment, controlled atmosphere film group Part 30 can be installed on sealed drawer 11.

Pump group part 40 is evacuated, is arranged in compressor bin 103, pumping pump group part 40 includes aspiration pump 41.Due to oxygen rich air Body collecting chamber is arranged in sealed drawer 11, and Fig. 6 shows the schematic diagram that aspiration pump 41 is connected with sealed drawer 11, aspiration pump 41 Essence is that the oxygen rich gas collecting chamber set with sealed drawer 11 is connected.The entrance point of aspiration pump 41 is cut via pipeline 51 and pipeline Converting mechanism 52 is controllably connected with the oxygen rich gas collecting chamber of controlled atmosphere membrane module 30, and the gas in oxygen rich gas collecting chamber is taken out It is discharged to outside fresh-keeping space, the ratio between nitrogen content and oxygen content in fresh-keeping space is more than 78/21, wherein in fresh-keeping space Nitrogen content is more than or equal to 83% with oxygen content sum.Those skilled in the art will appreciate that the nitrogen in fresh-keeping space Content should also be less than or equal to 100% with oxygen content sum.Due to oxygen relative to nitrogen therein more through gas The gas for adjusting film to enter in oxygen rich gas collecting chamber, oxygen rich gas collecting chamber is generally oxygen rich gas, the gas is discharged fresh-keeping Space, can reduce the content of oxygen in fresh-keeping space, the ratio between nitrogen content and oxygen content is more than 78/21.

Refrigerator 100 can also also include：Gas sensor, is arranged in fresh-keeping space, to monitor the nitrogen in fresh-keeping space Gas content and oxygen content, and be evacuated pump group part 40 and may be configured to：Nitrogen content in fresh-keeping space contains with oxygen The ratio between amount is less than or equal in the case of 78/21, drives pipeline switching mechanism 52 to connect the entrance point of aspiration pump 41 to fresh-keeping sky Between pipeline, control aspiration pump 41 run, the gas in oxygen rich gas collecting chamber is pumped to outside fresh-keeping space, makes fresh-keeping sky The ratio between interior nitrogen content and oxygen content are more than 78/21., can be to nitrogen content and oxygen according to different types of food materials The ratio between content is refined on the basis of more than 78/21, so that the atmosphere in fresh-keeping space meets variety classes food materials Fresh-keeping demand.In certain embodiments, if the ratio between nitrogen content in fresh-keeping space and oxygen content are more than after 78/21, Pipeline switching mechanism 52 can close the entrance point of aspiration pump 41 to the pipeline in fresh-keeping space, and aspiration pump 41 is also out of service.

As the air of original air inlet in fresh-keeping space, the ratio between nitrogen content therein and oxygen content about 78/21, this Embodiment is discharged the oxygen rich gas in oxygen rich gas collecting chamber in fresh-keeping space by controlled atmosphere membrane module 30 and aspiration pump 40, The ratio between nitrogen content and oxygen content in fresh-keeping space is set to be more than 78/21., can also be by guarantor in some other embodiment Fresh space is filled with the mode of nitrogen, improves the ratio between nitrogen content and oxygen content in fresh-keeping space, contains nitrogen in fresh-keeping space The ratio between amount and oxygen content are more than 78/21.It should be noted that not right using normal air as original air inlet in the present embodiment Of the present utility model to limit, in some other embodiment, the gas componant in fresh-keeping space can be different from normal air, but The mode of nitrogen can be equally filled with using controlled atmosphere membrane module 30 and the pump drainage oxygen rich gas of aspiration pump 40, to fresh-keeping space, is carried The ratio between nitrogen content and oxygen content in high-preserved space.

In a kind of preferred embodiment, the ratio between nitrogen content and oxygen content in fresh-keeping space are more than or equal to 4.26 And less than or equal to 49.For example, being not more than in nitrogen content and oxygen content sum on the premise of 100%, in fresh-keeping space Nitrogen content be in 81% to 98% scope, be that all kinds of food materials controlled atmospheres are protected when oxygen content is in 2% to 19% scope Fresh universal suitable interval, and other gases in fresh-keeping space in addition to nitrogen and oxygen do not possess oxidisability, to avoid Influence the storage effect of food materials.

The fresh-keeping demand of food materials, nitrogen content and oxygen can not be fully met by being adjusted merely by the atmosphere of rich nitrogen oxygen deprivation The proportionate relationship of Gas content is also most important.The ratio between nitrogen content in the fresh-keeping space of the present embodiment and oxygen content be more than or Equal to 4.26 and less than or equal to 49, can either imitate reduces the aerobic respiration intensity of the food materials in fresh-keeping space, while oxygen Content is unlikely to too low, ensure that the base respiration effect of food materials, prevents food materials from carrying out anaerobic respiration, so as to ensure food materials Fresh-keeping effect, extends the freshness date of food materials.

Inventor has found that identical in other conditions of storage, nitrogen content contains with oxygen in fresh-keeping space by many experiments In the case that the ratio between amount is different, the freshness date of all kinds of food materials is different.An instantiation is introduced below：Normal air into Nitrogen content is about 78% in point, and oxygen content is about 21%, the ratio between nitrogen content and oxygen content about 78/21.In nitrogen The ratio between content and oxygen content are 78/21, under other certain conditions of storage, and the fresh keeping time of apple is 12 days, the guarantor of grape The fresh time is 4 days, and the fresh keeping time of baby cabbage is 13 days, and the fresh keeping time of broccoli is 14 days, and the fresh keeping time of radish is 20 My god, the fresh keeping time of fresh mushroom is 4 days, and the fresh keeping time of lichee is 7 days, and the fresh keeping time of Kiwi berry is 8 days, strawberry it is fresh-keeping Time is 4 days, and the fresh keeping time of salmon is 3 days；And nitrogen content is 85% in fresh-keeping space, oxygen content is 15%, In the case of i.e. the ratio between nitrogen content and oxygen content are 85/15, other condition of storage identicals, the fresh keeping time of apple is 50 My god, the fresh keeping time of grape is 18 days, and the fresh keeping time of baby cabbage is 36 days, and the fresh keeping time of broccoli is 40 days, the guarantor of radish The fresh time is 90 days, and the fresh keeping time of fresh mushroom is 15 days, and the fresh keeping time of lichee is 27 days, and the fresh keeping time of Kiwi berry is 37 My god, the fresh keeping time of strawberry is 21 days, and the fresh keeping time of salmon is 30 days.

All kinds of food materials are in the situation that the ratio between nitrogen content and oxygen content are 85/15 it can be seen from above-mentioned instantiation Under, fresh keeping time is considerably beyond the situation that the ratio between nitrogen content and oxygen content are 78/21.At the same time, make in fresh-keeping space Temperature be maintained at certain limit, can be with the fresh-keeping effect of service hoisting food materials.Different food materials can correspond to different suitable Storage temperature, the refrigerated storage temperature of such as fruits and vegetables class food materials is generally 2 DEG C to 8 DEG C, and the refrigerated storage temperatures of cold fresh meat class food materials is generally- 2 DEG C to 1 DEG C, the cryogenic temperature of all kinds of food materials is generally -22 DEG C to -14 DEG C.Make fresh-keeping space nitrogen content be in 81% to 98% scope, oxygen content is in 2% to 19% scope, and it is suitable the temperature in fresh-keeping space is maintained at all kinds of food materials Storage temperature it is interval, can effectively lift the fresh-keeping effect of all kinds of food materials.It should be noted that above fresh keeping time and storage The concrete numerical value of temperature is only to enumerate, and is not limited of the present utility model.

As shown in figure 3, casing 10 can include inner bag 101, storage space 102 is limited in it.As shown in figure 4, sealing Drawer 11 includes：Drawer cylinder 12, with preceding to opening, and is fixed on inner bag 101, defines fresh-keeping space in it；And take out Drawer body 13, is slidably mounted in drawer cylinder 12, operationally outwards to be extracted out from the forward direction opening of drawer cylinder 12 Be inwardly inserted into drawer cylinder 12.Drawer cylinder 12 may be disposed at the bottom of inner bag, in some other embodiment, drawer cylinder 12 may also set up in the middle part or top of inner bag.In this embodiment, inner bag 101 and drawer cylinder 12 can be integrally formed, and also may be used It is separately formed and then installed again.

Multiple air equalizer openings can be offered on drawer cylinder 12, to connect storage space 102 and fresh-keeping space.Each gas It can be millimetre-sized micropore to press balance pipe, such as the diameter of each air equalizer opening can be 0.1mm to 3mm.Multiple gas are set Pressure balance pipe can balance the pressure inside and outside fresh-keeping space, and the setting of multiple air equalizer openings will not also make the gas in fresh-keeping space Body flows to big storage space, even if flowing is also that very little is even negligible, does not interfere with fresh-keeping space and eats The preservation of thing.In other embodiment, air equalizer opening can be also not provided with drawer cylinder 12, even if so, fresh-keeping sky It is interior also to there is substantial amounts of gas to exist, such as a large amount of nitrogen in fresh-keeping space, user is when pulling the drawer out body 13, also not , then can be significantly laborsaving compared to existing vacuum storing room with too sweat.

Controlled atmosphere membrane module 30 is installed on container for storing, and its surrounding space is connected with fresh-keeping space.In the present embodiment, gas Membrane module 30 is adjusted to be installed on sealed drawer 11, as shown in figure 5, controlled atmosphere membrane module 30 may be disposed on drawer cylinder 12, it is excellent Selection of land is arranged at the roof of drawer cylinder 12.Specifically, it is provided with the appearance connected with fresh-keeping space in the roof of drawer cylinder 12 Chamber 121 is received, to house controlled atmosphere membrane module 30.In wall between the accommodating chamber 121 of the roof of drawer cylinder 12 and fresh-keeping space At least one second ventilation for offering at least one first passage 122 and being spaced apart with least one first passage 122 Hole 123, with respectively in diverse location connection accommodating chamber 121 and fresh-keeping space.First passage 122 and the second passage 123 are equal For aperture, and quantity can be multiple.In some alternate embodiments, there is recessed groove on the inside of the roof of drawer cylinder 12. Controlled atmosphere membrane module 30 is arranged in the recessed groove of the roof of drawer cylinder 12.

In some embodiments of the present utility model, in order to promote fresh-keeping space to be flowed with the gas in accommodating chamber 121, ice Case 100 may also include blower fan 60, be arranged in accommodating chamber 121, with promote the gas in fresh-keeping space successively via at least one One passage 122, accommodating chamber 121 and at least one second passage 123 return to fresh-keeping space.Blower fan 60 is preferably to centrifuge wind Machine, is arranged in accommodating chamber 121 at first passage 122.That is, centrifugal blower is located at least one first passage 122 top, and rotation axis is straight down, air inlet is right against the first passage 122.The gas outlet of centrifugal blower can direction Controlled atmosphere membrane module 30.Controlled atmosphere membrane module 30 is arranged at the top of at least one the second passage 123 and causes controlled atmosphere membrane module 30 Each controlled atmosphere film parallel to drawer cylinder 12 roof.At least one first passage 122 is arranged at roof front portion, at least one Individual second passage 123 is arranged at roof rear portion.That is, centrifugal blower is arranged at the front portion of accommodating chamber 121, and controlled atmosphere membrane module 30 is set It is placed in the rear portion of accommodating chamber 121.

Further, the roof of drawer cylinder 12 includes lower board unit 124 and ceiling plate portion 125, a partial zones of lower board unit 124 Depressed part is formed in domain, ceiling plate portion 125 is removably covered on depressed part, to form accommodating chamber 121.For the ease of drawer cylinder 12 making, lower board unit 124 can be integrally formed with side wall, bottom wall, the rear wall of drawer cylinder 12.

Fig. 7 is the schematic diagram of controlled atmosphere membrane module in the refrigerator 100 according to the utility model one embodiment, Fig. 8 It is the schematic, exploded of controlled atmosphere membrane module shown in Fig. 7, Fig. 9 is the schematic knot of support frame in controlled atmosphere membrane module shown in Fig. 8 Composition, Figure 10 is the schematic diagram of the support frame in controlled atmosphere membrane module shown in Fig. 8 from another angle.In the present embodiment In, controlled atmosphere film is oxygen permeable membrane, and controlled atmosphere membrane module 30 can be oxygen-enriched membrane component 31.The oxygen-enriched membrane component 31 of the present embodiment is general Ground may include：Support frame 32 and the oxygen permeable membrane 33 being arranged in support frame 32.

In the utility model embodiment, oxygen permeable membrane 33 can all permeate for all gas, and simply gas with various has There are different penetration degrees.Gas permeation oxygen permeable membrane 33 is a complicated process, and it is usually that gas molecule is first through mechanism The surface dissolving of oxygen permeable membrane 33 is first adsorbed to, is then spread in oxygen permeable membrane 33, is finally desorbed from the opposite side of oxygen permeable membrane 33 Out.Oxygen-enriched membrane separation technique dissolves the difference with diffusion coefficient to realize point of gas by gas with various in oxygen permeable membrane 33 From.When mixed gas is under certain driving force (pressure differentials or pressure ratio of the both sides of oxygen permeable membrane 33) effect, infiltration rate is suitable Such as oxygen, hydrogen, helium, hydrogen sulfide, carbon dioxide are through after oxygen permeable membrane 33 for fast gas, in the per-meate side quilt of oxygen permeable membrane 33 Enrichment, and the relatively slow gas of infiltration rate such as nitrogen, carbon monoxide etc. be trapped in oxygen permeable membrane 33 delay side be enriched with from And reach the purpose of mixed gas separation.

Support frame 32 has the first surface 321 being parallel to each other and is formed with second surface 322, and support frame 32 Respectively on first surface 321 extension, extend on second surface 322, and through support frame 32 to connect first surface 321 and multiple gas channels 323 of second surface 322.Multiple gas channels 323 are collectively forming oxygen rich gas collecting chamber.This reality The oxygen permeable membrane 33 for applying example is at least one, it is preferable that can be two planar shaped oxygen permeable membranes, support frame 32 is laid on respectively On first surface 321 and second surface 322.Oxygen permeable membrane 33 can be when its inside pressure be less than outside pressure, it is allowed to its outside Oxygen in air enters in oxygen rich gas collecting chamber through oxygen permeable membrane 33 forms oxygen rich gas, so that its outside air turns into Nitrogen-rich gas.

In certain embodiments, support frame 32 includes what is connected with least one in aforesaid plurality of gas channel 323 Aspirating hole 324, is extracted out with allowing the oxygen rich gas in oxygen rich gas collecting chamber to be evacuated pump 41.With in oxygen rich gas collecting chamber Oxygen rich gas be extracted, in oxygen rich gas collecting chamber be in negative pressure state, therefore the outside air of oxygen-enriched membrane component 31 in oxygen Gas can continue to enter in oxygen rich gas collecting chamber through oxygen permeable membrane 33, so that the outside air of oxygen-enriched membrane component 31 forms rich nitrogen Atmosphere.In certain embodiments, the aforesaid plurality of gas channel 323 that support frame 32 is internally formed can be multiple and aspirating hole The cavity of 324 connections.

In certain embodiments, referring to Fig. 8 and Fig. 9, in order to further facilitate installation, first can enclose double faced adhesive tape 325 with one will Oxygen permeable membrane 33 is pre-fixed in the installation groove 327 of support frame 32, fills one in the loop wire groove 328 of support frame 32 afterwards Fluid sealant 326 is enclosed, oxygen permeable membrane 33 is sealably mounted in the installation groove 327 of support frame 32.

The entrance point of aspiration pump 41 via pipeline 51 and pipeline switching mechanism 52 controllably with the oxygen rich air in fresh-keeping space Body collecting chamber is connected, and specifically, can be connected with aspirating hole 324.Aspiration pump 41 is configured to outwards be evacuated by aspirating hole 324, So that the pressure of oxygen rich gas collecting chamber is less than the pressure in fresh-keeping space.That is, aspiration pump 41 is in outside pumping, it is fresh-keeping Air in space can flow to oxygen-enriched membrane component, and make in the presence of oxygen-enriched membrane component the part in fresh-keeping space in air Or whole oxygen enter oxygen rich gas collecting chamber, fresh-keeping space are discharged by by pipeline 51 and aspiration pump 41, so that in fresh-keeping sky It is interior to obtain rich nitrogen oxygen deprivation in favor of the atmosphere of food fresh-keeping.

Oxygen-enriched membrane component utilizes infiltration rate during each component gas permeation oxygen permeable membrane in air different, in pressure differential driving Under, oxygen in air is preferentially obtained oxygen by oxygen permeable membrane.In some other embodiment, controlled atmosphere film can also be hollow Tunica fibrosa, controlled atmosphere membrane module is hollow fiber film assembly, and hollow fiber film assembly utilizes each component gas permeation in air hollow The transmitance of tunica fibrosa is different, and because oxygen molecule is less than nitrogen molecular, oxygen molecule can preferentially obtain oxygen through hollow-fibre membrane.

Figure 11 is the schematic, exploded of pumping pump group part 40 in the refrigerator 100 according to the utility model one embodiment. As shown in figure 11, in some embodiments of the present utility model, pumping pump group part 40 may also include mounting base 42 and seal box 43.Mounting base 42 can be installed on the bottom surface of compressor bin 103 by multiple shock absorption footpads 44.Seal box 43 is installed on installation bottom Plate 42.Aspiration pump 41 is installed in seal box 43.That is, aspiration pump 41 may be disposed at the inside of a seal box 43, sealing Box 43 can be installed in compressor bin 103 by mounting base 42.When aspiration pump 41 is run, seal box 43 can be largely Barrier noise and/or used heat are outwards propagated.Further, it is lifting damping noise reduction effect, can also installs many on mounting base 42 Individual shock absorption footpad 44 (can be quality of rubber materials).The quantity of shock absorption footpad 44 is preferably four, and four shock absorption footpads 44 are arranged on peace In the foot pad mounting hole opened up at the corner for filling bottom plate 42.

In some embodiments of the present utility model, seal box 43 is internally provided with an installation frame, installation frame with The inwall of seal box 43 is connected by multiple vibration damping cushion blocks, and aspiration pump 41 is fixed on inside installation frame, so to mitigate pumping Vibration and noise when pump 41 is run.Specifically, the bottom of installation frame is provided with two vibration damping cushion blocks, and vibration damping cushion block is set in In the locating dowel of the bottom surface of seal box 43.One opposite sides of installation frame is each provided with a circular vibration damping cushion block, and card In the neck of the respective side walls of seal box 43.An other opposite sides for installation frame is each to fix a vibration damping cushion block.Pumping Pump 41 can be between each vibration damping cushion block in seal box 43, and be anchored on installation frame by screw.

The refrigeration system of refrigerator 100 can be the kind of refrigeration cycle being made up of compressor, condenser, throttling arrangement and evaporator etc. System.Compressor is installed in compressor bin 103.Evaporator is configured to directly or indirectly provide cold into storage space 102 Amount.For example, when the refrigerator is family expenses compression direct cooling refrigerator, evaporator may be disposed on the outside of the rear surface of inner bag or inner side. When the refrigerator is family expenses compression wind cooling refrigerator, also there is evaporator room in casing 10, evaporator room by air path system with Storage space 102 is connected, and evaporator is set in evaporator room, and exit is provided with blower fan, to be followed to storage space 102 Ring freezes.

In some embodiments of the present utility model, aspiration pump 41 is arranged at one end of compressor bin 103, and compressor can be set The other end of compressor bin 103 is placed in, so that the distance of the Range compress machine of aspiration pump 41 is distant, noise superposition and used heat is reduced Superposition.For example, aspiration pump 41 may be disposed at one end that door body pivots side of closing on of compressor bin 103.When refrigerator is clamshell doors ice During case, aspiration pump 41 may be disposed at the either end of compressor bin 103.In other embodiments of the present utility model, pumping Pump 41 closes on compressor setting, and aspiration pump 41 is arranged at one end of compressor bin 103, and in compressor and compressor bin 103 Side wall between.Aspiration pump 41 is arranged in compressor bin 103, can make full use of compressor bin space, other are not taken additionally Place, therefore the additional volumes of refrigerator will not be increased, the compact conformation of refrigerator can be made.

The refrigerator 100 of the present embodiment, makes the oxygen in fresh-keeping space relative to nitrogen therein more by controlled atmosphere membrane module Enter oxygen rich gas collecting chamber through controlled atmosphere film more, and be pumped to the gas in oxygen rich gas collecting chamber by aspiration pump 41 Outside fresh-keeping space, so that the ratio between the nitrogen content in fresh-keeping space and oxygen content are more than 78/21, can be real in fresh-keeping space The atmosphere fresh-keeping beneficial to food materials of existing richness nitrogen oxygen deprivation, can improve the storage effect of food materials, lift the usage experience of user.

Further, the ratio between nitrogen content in the refrigerator 100 of the present embodiment, fresh-keeping space and oxygen content are more than or waited In 4.26 and less than or equal to 49, the ratio between nitrogen content in fresh-keeping space and oxygen content is set to be in above range, can be with The intensity of food materials aerobic respiration is effectively reduced, while the respiration on basis can also be ensured, it is to avoid food materials carry out anaerobic respiration, So as to extend the freshness dates of food materials, in addition, pumping pump group part 40 is arranged in compressor bin, do not take additionally elsewhere, because This will not increase the additional volumes of refrigerator, can make the compact conformation of refrigerator.

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 refrigerator, it is characterised in that including：

Casing, defines inside it and container for storing is provided with storage space and compressor bin, the storage space, and the storage Fresh-keeping space is defined inside thing container；

Door body, is arranged at the preceding surface of the casing, for closing the storage space；

Controlled atmosphere membrane module, is installed on the container for storing and its surrounding space is connected with the fresh-keeping space, the controlled atmosphere film group Part has at least one controlled atmosphere film and an oxygen rich gas collecting chamber, and is arranged so that the controlled atmosphere membrane module surrounding space gas Oxygen in stream more enters the oxygen rich gas collecting chamber relative to nitrogen therein through the controlled atmosphere film；And

Pump group part is evacuated, is arranged in the compressor bin, the pumping pump group part includes aspiration pump, the import of the aspiration pump End is controllably connected via pipeline and pipeline switching mechanism with the oxygen rich gas collecting chamber, by the oxygen rich gas collecting chamber In gas be pumped to outside the fresh-keeping space, the ratio between nitrogen content in the fresh-keeping space and oxygen content is more than 78/ 21, wherein nitrogen content in the fresh-keeping space is more than or equal to 83% with oxygen content sum.

2. refrigerator according to claim 1, it is characterised in that

The ratio between nitrogen content and oxygen content in the fresh-keeping space are more than or equal to 4.26 and less than or equal to 49.

3. refrigerator according to claim 1, it is characterised in that

The controlled atmosphere membrane module is oxygen-enriched membrane component, and at least one described controlled atmosphere film is at least one oxygen permeable membrane.

4. refrigerator according to claim 3, it is characterised in that the oxygen-enriched membrane component also includes：

Support frame, it has the first surface and second surface that are parallel to each other, and is formed with and exists respectively in the support frame Extension on the first surface, extend on the second surface, and through the support frame to connect first table Face and multiple gas channels of second surface, the multiple gas channel are collectively forming the oxygen rich gas collecting chamber, and

At least one described oxygen permeable membrane is two planar shaped oxygen permeable membranes, and the first surface and the of the support frame is laid on respectively On two surfaces.

5. refrigerator according to claim 1, it is characterised in that

The container for storing is sealed drawer, and the fresh-keeping space is limited by the sealed drawer.

6. refrigerator according to claim 5, it is characterised in that the casing includes：

Inner bag, limits the storage space in it.

7. refrigerator according to claim 6, it is characterised in that the sealed drawer includes：

Drawer cylinder, with preceding to opening, and is fixed on the inner bag, defines the fresh-keeping space in it；And

Drawer body, is slidably mounted in the drawer cylinder, with from the forward direction opening of the drawer cylinder operationally Outwards extract and be inwardly inserted into the drawer cylinder out.

8. refrigerator according to claim 7, it is characterised in that

Multiple air equalizer openings are offered on the drawer cylinder, to connect the storage space and the fresh-keeping space.

9. refrigerator according to claim 7, it is characterised in that

The accommodating chamber connected with the fresh-keeping space is provided with the roof of the drawer cylinder, to house the controlled atmosphere film group Part, and

Offered in wall between the accommodating chamber of the roof of the drawer cylinder and the fresh-keeping space at least one One passage and at least one second passage being spaced apart with the first passage at least one described, with respectively in diverse location Connect the accommodating chamber and the fresh-keeping space；

The refrigerator also includes blower fan, is arranged in the accommodating chamber, to promote the gas in the fresh-keeping space successively via institute State at least one first passage, the accommodating chamber and at least one described second passage and return to the fresh-keeping space.

10. refrigerator according to claim 1, it is characterised in that the pumping pump group part also includes：

Mounting base, the bottom surface of the compressor bin is installed on by multiple shock absorption footpads；And

Seal box, is installed on the mounting base, and the aspiration pump is installed in the seal box.