NZ753838B2 - Air-regulating freshness-preserving food storage device - Google Patents
Air-regulating freshness-preserving food storage device Download PDFInfo
- Publication number
- NZ753838B2 NZ753838B2 NZ753838A NZ75383817A NZ753838B2 NZ 753838 B2 NZ753838 B2 NZ 753838B2 NZ 753838 A NZ753838 A NZ 753838A NZ 75383817 A NZ75383817 A NZ 75383817A NZ 753838 B2 NZ753838 B2 NZ 753838B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- oxygen
- air
- storage space
- permeable membrane
- oxygen permeable
- Prior art date
Links
- 235000013305 food Nutrition 0.000 title claims abstract description 23
- 239000001301 oxygen Substances 0.000 claims abstract description 115
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 115
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 115
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 23
- 230000002349 favourable Effects 0.000 claims abstract description 11
- 239000012528 membrane Substances 0.000 claims description 120
- 238000004378 air conditioning Methods 0.000 claims description 107
- 239000007789 gas Substances 0.000 claims description 70
- 239000012466 permeate Substances 0.000 claims description 6
- 230000000149 penetrating Effects 0.000 claims description 5
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 4
- 238000009920 food preservation Methods 0.000 abstract 2
- 235000012055 fruits and vegetables Nutrition 0.000 description 12
- 238000007789 sealing Methods 0.000 description 9
- 230000000875 corresponding Effects 0.000 description 5
- 238000007710 freezing Methods 0.000 description 5
- 230000004103 aerobic respiration Effects 0.000 description 3
- 230000004099 anaerobic respiration Effects 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 230000035812 respiration Effects 0.000 description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Chemical compound O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 2
- 230000001737 promoting Effects 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium(0) Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton(0) Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon(0) Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910052704 radon Inorganic materials 0.000 description 1
- SYUHGPGVQRZVTB-UHFFFAOYSA-N radon(0) Chemical compound [Rn] SYUHGPGVQRZVTB-UHFFFAOYSA-N 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon(0) Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D2053/221—Devices
- B01D2053/222—Devices with plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/10—Nitrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/104—Oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/4525—Gas separation or purification devices adapted for specific applications for storage and dispensing systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/06—Flat membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/10—Supported membranes; Membrane supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/011—Oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/047—Pressure equalising devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/024—Slidable shelves
- F25D25/025—Drawers
Abstract
air-regulating freshness-preserving food storage device comprises a container (20) having a first food storage space (21) defined therein; and an oxygen removal device configured to remove a part or all of oxygen in air in the first food storage space (21), so as to obtain the air rich in nitrogen, low in oxygen, and favorable for food preservation. n, low in oxygen, and favorable for food preservation.
Description
AIR-CONDITIONING FRESHNESS KEEPING STORAGE DEVICE
The present application claims priority of Chinese Patent Application No.
201611097466.3, filed on December 02, 2016 and titled “Air-Conditioning
Freshness-Keeping Storage Device ”, which is incorporated herein by reference in its
entirety.
TECHNICAL FIELD
The present invention relates to the field of article freshness-keeping
technologies, and more particularly, to an air-conditioning freshness-keeping storage
device.
BACKGROUND
The refrigerator is a refrigerating device that maintains a constant low
temperature, and is also a civilian product that keeps food or other articles at a
constant-low-temperature cold state. With the improvement of the life quality, consumers
demand more and more on freshness keeping of stored food, especially, the color, taste and
the like of the food. Therefore, it should be ensured that the color, taste, freshness and the
like of the stored food are unchanged as much as possible during storage. At present, there
is only vacuum freshness keeping on the market for better storing the food. The vacuum
freshness keeping manners often used are freshness keeping with a vacuum bag and
freshness keeping with a vacuum storage space.
If the vacuum bag is adopted for freshness keeping, the consumers need to
carry out the vacuumizing action every time the food is stored, which is troublesome in
operation and cannot be enjoyed by the consumers.
If the vacuum storage space is adopted for freshness keeping, since a
refrigerator body and the like are of rigid structures, in order to maintain the vacuum state,
the requirements on a vacuumizing system and the sealing performance of the refrigerator
are very high. When an article is taken or placed every time, a large quantity of new air is
poured in, and thus the consumption of energy is relatively high. Moreover, in a vacuum
environment, it is relatively difficult for the food to receive cold, which is particularly
unfavorable for food storage. In addition, due to the vacuum environment, it takes a lot of
effort for the user to open a refrigerator door every time, thereby causing inconvenience to
the user. Although the vacuum storage spaces of some refrigerators can be ventilated by
vacuumizing systems, the user needs to wait for a longer time, resulting in poor timeliness.
Besides, a relatively longer vacuum time will also cause serious deformation of a
refrigerator body and the like. That is, the existing refrigerators with vacuumizing structures
cannot complete the vacuum freshness keeping, its requirements on the strength of the
refrigerator body and the like are very large, and thus, the implementing requirements and
cost are higher.
SUMMARY
[0006] The present invention aims to overcome at least one of the deficiencies of the
existing freshness-keeping storage devices by providing an air-conditioning
freshness-keeping device, which creatively extracts oxygen in the air in a space from the
space, so as to obtain a nitrogen-rich oxygen-poor atmosphere favorable for freshness
keeping of food in the space. In the atmosphere, the oxygen content in a space where fruits
and vegetables are preserved is reduced to reduce the intensity of aerobic respiration of the
fruits and vegetables. Meanwhile, a basic respiration action is ensured, thereby preventing
anaerobic respiration of the fruits and vegetables, and further achieving the purpose of
long-term freshness keeping of the fruits and vegetables.
For this purpose, according to one aspect of the present invention, there is
provided an air-conditioning freshness-keeping storage device, comprising: a case body,
wherein a first storage space is defined in the case body; and an oxygen removing device,
configured to extract a part or all of the oxygen in the air in the first storage space from the
first storage space to obtain a nitrogen-rich and oxygen-poor atmosphere favorable for food
freshness keeping in the first storage space;
wherein the oxygen removing device comprises:
an air-conditioning membrane assembly, having at least one air-conditioning membrane
and an oxygen-rich gas collecting chamber, wherein the surrounding space of the
air-conditioning membrane assembly communicates with the first storage space, and the
air-conditioning membrane assembly is configured such that more oxygen in the airflow in
the surrounding space of the air-conditioning membrane assembly permeates through the
air-conditioning membrane to enter the oxygen-rich gas collecting chamber relative to the
nitrogen in the airflow in the surrounding space of the air-conditioning membrane assembly;
and a gas extracting device, wherein the inlet end of the gas extracting device
communicates with the oxygen-rich gas collecting chamber via a pipeline to extract the gas
permeating into the oxygen-rich gas collecting chamber to the outside of the case body;
wherein the air-conditioning membrane assembly is a flat-plate-type oxygen-enriching
membrane component, and each of the air-conditioning membranes is an oxygen-enriching
membrane; and
wherein the flat-plate-type oxygen-enriching membrane component further comprises a
support frame having a first surface and a second surface parallel to each other, the support
frame is provided with a plurality of airflow channels extending on the first surface and the
second surface respectively and penetrating the support frame to communicate the first
surface and the second surface, and the plurality of airflow channels forms the oxygen-rich
gas collecting chamber together; and at least one of the oxygen-enriching membranes is two
planar oxygen-enriching membranes which are paved on the first surface and the second
surface of the support frame respectively; and
an accommodating chamber communicating with the first storage space is disposed in a
top wall of the case body, and the air-conditioning membrane assembly is disposed in the
accommodating chamber, at least one first vent hole and at least one second vent hole
spaced apart from the at least one first vent hole are formed in a wall surface between the
accommodating chamber of the top wall and the first storage space, so as to communicate
the accommodating chamber with the first storage space at different positions, the
air-conditioning freshness-keeping storage device further comprises:
a centrifugal fan disposed in the accommodating chamber to promote the gas in the first
storage space to be returned to the first storage space via the at least one first vent hole,
the accommodating chamber, and the at least second vent hole in sequence, the
centrifugal fan is located above the at least one first vent hole, and has an axis of rotation
vertically downward and an air inlet opening directly facing the first vent hole,
an air outlet of the centrifugal fan faces to the air-conditioning membrane assembly, the
air-conditioning membrane assembly is disposed above the at least one second vent hole,
such that each air-conditioning membrane of the air-conditioning membrane assembly is
parallel to the top wall of the case body.
Optionally, the oxygen removing device comprises: an oxygen-enriching
membrane assembly, having at least one air-conditioning membrane and an oxygen-rich gas
collecting chamber, wherein the surrounding space of the air-conditioning membrane
assembly communicates with the first storage space, and the air-conditioning membrane
assembly is configured such that more oxygen in the airflow in the surrounding space of the
air-conditioning membrane assembly permeates through the air-conditioning membrane to
enter the oxygen-rich gas collecting chamber relative to the nitrogen in the airflow in the
surrounding space of the air-conditioning membrane assembly; and a gas extracting device,
wherein the inlet end of the gas extracting device communicates with the oxygen-rich gas
collecting chamber via a pipeline to extract the gas permeating into the oxygen-rich gas
collecting chamber to the outside of the case body.
Optionally, the case body is provided with a plurality of gas pressure
balancing holes, and the first storage space communicates with the outside space of the case
body via the plurality of gas pressure balancing holes.
Optionally, the air-conditioning membrane assembly is a flat-plate-type
oxygen-enriching membrane component, and each of the air-conditioning membranes is an
oxygen-enriching membrane.
Optionally, the flat-plate-type oxygen-enriching membrane component further
comprises a support frame having a first surface and a second surface parallel to each other,
the support frame is provided with a plurality of airflow channels extending on the first
surface and the second surface respectively and penetrating the support frame to
communicate the first surface and the second surface, and the plurality of airflow channels
forms the oxygen-rich gas collecting chamber together; and at least one of the
oxygen-enriching membranes is two planar oxygen-enriching membranes which are paved
on the first surface and the second surface of the support frame respectively.
[0012] Optionally, the air-conditioning freshness-keeping storage device further
comprises: a drawer, slidably mounted in the first storage space to be outwardly withdrawn
from and inwardly inserted into the first storage space operatively from a forward opening
of the first storage space.
Optionally, the air-conditioning freshness-keeping storage device further
comprises: a refrigerating system, configured to provide cold to the first storage space.
Optionally, the air-conditioning freshness-keeping storage device further
comprises: a box body, wherein a second storage space is defined in the box body; and the
case body is mounted in the second storage space.
Optionally, an accommodating chamber communicating with the first storage
space is disposed in a top wall of the case body; and the air-conditioning membrane
assembly is disposed in the accommodating chamber.
Optionally, at least one first vent hole and at least one second vent hole
spaced apart from the at least one first vent hole are formed in a wall surface between the
accommodating chamber of the top wall and the first storage space, so as to communicate
the accommodating chamber with the first storage space at different positions.
The air-conditioning freshness-keeping storage device further comprises a fan
disposed in the accommodating chamber to promote the gas in the first storage space to be
returned to the first storage space via the at least one first vent hole, the accommodating
chamber, and the at least second vent hole in sequence.
The air-conditioning freshness-keeping storage device according to the
present invention has the oxygen removing device capable of extracting the oxygen from the
first storage space, so that the nitrogen-rich oxygen-poor atmosphere favorable for food
freshness keeping can be formed in the first storage space. In the atmosphere, the oxygen
content in the space where fruits and vegetables are preserved is reduced to reduce the
intensity of the aerobic respiration of the fruits and vegetables. Meanwhile, a basic
respiration function is ensured, thereby preventing anaerobic respiration of the fruits and
vegetables, and further achieving the purpose of long-term freshness keeping of the fruits
and vegetables. The air-conditioning freshness-keeping storage device not only has a good
freshness-keeping effect, but also has low requirements of rigidity and strength on the case
body and the like; and the implementing requirements and the cost are low.
Further, the inventors have found that since the conventional
nitrogen-generating device for air-conditioning freshness keeping is larger in size and
higher in cost, the technology is basically limited to various large-scale professional
storehouses (the storage capacity is generally at least 30 tons). It can be said that what type
of appropriate air-conditioning technology and corresponding device may be adopted to
economically miniaturize and silence the air-conditioning system to make it suitable for
families or individual users is the technical problem that the technicians in the field of
air-conditioning freshness keeping have been eager to solve but has not successfully solved.
In the air-conditioning freshness-keeping storage device according to the present invention,
the oxygen removing device comprises the air-conditioning membrane assembly and the gas
extracting device, so that the above technical problem that the technicians in the field of
air-conditioning freshness keeping have been eager to solve but has not successfully solved
is solved. The air-conditioning freshness-keeping storage device is not only small in size but
also low in noise, and is especially suitable for families and individuals.
In particular, the air-conditioning freshness-keeping storage device according
to the present invention may be a refrigerator having a refrigerating function or a fixed
storage device or a portable storage device without the refrigerating function.
According to another aspect of the present invention, there is provided an
air-conditioning freshness-keeping storage device, comprising:
a case body, wherein a first storage space is defined in the case body; and
an oxygen removing device, configured to extract a part or all of the oxygen in the air in
the first storage space from the first storage space to obtain a nitrogen-rich oxygen-poor
atmosphere favorable for food freshness keeping in the first storage space;
wherein the oxygen removing device comprises:
an oxygen permeable membrane assembly, having at least one oxygen permeable
membrane and an oxygen-rich gas collecting chamber, wherein the surrounding space of the
oxygen permeable membrane assembly communicates with the first storage space, and the
oxygen permeable membrane assembly is configured such that more oxygen in the airflow
in the surrounding space of the oxygen permeable membrane assembly permeates through
the oxygen permeable membrane to enter the oxygen-rich gas collecting chamber relative to
the nitrogen in the airflow in the surrounding space of the oxygen permeable membrane
assembly;
and a gas extracting device, wherein the inlet end of the gas extracting device
communicates with the oxygen-rich gas collecting chamber via a pipeline to extract the gas
permeating into the oxygen-rich gas collecting chamber to the outside of the case body;
wherein the oxygen permeable membrane assembly is a flat-plate-type oxygen
permeable membrane component, and each of the oxygen permeable membranes is an
oxygen permeable membrane, and
wherein the flat-plate-type oxygen permeable membrane component further comprises a
support frame having a first surface and a second surface parallel to each other, the support
frame is provided with a plurality of airflow channels extending on the first surface and the
second surface respectively and penetrating the support frame to communicate the first
surface and the second surface, and the plurality of airflow channels forms the oxygen-rich
gas collecting chamber together; and at least one of the oxygen permeable membranes is
two planar oxygen permeable membranes which are placed on the first surface and the
second surface of the support frame respectively; and
an accommodating chamber communicating with the first storage space is disposed in a
top wall of the case body, and the oxygen permeable membrane assembly is disposed in the
accommodating chamber, at least one first vent hole and at least one second vent hole
spaced apart from the at least one first vent hole are formed in a wall surface between the
accommodating chamber of the top wall and the first storage space, so as to communicate
the accommodating chamber with the first storage space at different positions, the
air-conditioning freshness-keeping storage device further comprises:
a centrifugal fan disposed in the accommodating chamber to promote the gas in the first
storage space to be returned to the first storage space via the at least one first vent hole,
the accommodating chamber, and the at least second vent hole in sequence, the
centrifugal fan is located above the at least one first vent hole, and has an axis of rotation
vertically downward and an air inlet opening directly facing the first vent hole,
an air outlet of the centrifugal fan faces to the oxygen permeable membrane assembly,
the oxygen permeable membrane assembly is disposed above the at least one second vent
hole, such that each oxygen permeable membrane of the oxygen permeable membrane
assembly is parallel to the top wall of the case body.
Other features and advantages of the present invention will become apparent
from the following detailed description of exemplary embodiments of the present invention
with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Some specific embodiments of the present invention are described in detail
below with reference to the accompanying drawings by way of illustration instead of
limitation. The same reference signs in the drawings denote the same or similar components
or parts. Those skilled in the art should understand that the drawings are not necessarily
drawn to scale. In the drawings:
[0024] is a schematic structural view of an air-conditioning freshness-keeping
storage device according to an embodiment of the present invention.
is a schematic partial structural view of an air-conditioning
freshness-keeping storage device according to another embodiment of the present invention.
is a schematic structural view of the structure shown in from
another perspective.
is a schematic partial structural view of an air-conditioning
freshness-keeping storage device according to an embodiment of the present invention.
is a schematic exploded view of the structure shown in
is a schematic exploded view of an air-conditioning membrane
assembly in an air-conditioning freshness-keeping storage device according to an
embodiment of the present invention.
DETAILED DESCRIPTION
is a schematic structural view of an air-conditioning freshness-keeping
storage device according to an embodiment of the present invention. As shown in
the embodiment of the present invention provides an air-conditioning freshness-keeping
storage device, which may comprise a case body 20 and an oxygen removing device.
A first storage space 21 is defined in the case body 20. In order to preserve
food, and to enable the first storage space 21 to be airtight as much as possible, the first
storage space 21 is an airtight space or an approximately airtight space. In some optional
embodiments, the air-conditioning freshness-keeping storage device further comprises a
door body which opens or closes the first storage space 21 and which is rotatably mounted
in the case body 20. In some preferred embodiments, the air-conditioning freshness-keeping
storage device further comprises a drawer 28 slidably mounted in the first storage space 21
to be outwardly withdrawn from and inwardly inserted into the first storage space 21
operatively from a forward opening of the first storage space 21. The drawer 28 may have a
drawer end cover which can cooperate with the opening of the first storage space 21 for
closing and opening the first storage space 21.
[0032] The oxygen removing device is configured to extract part or all of the oxygen
in the air in the first storage space 21 from the first storage space 21 to obtain a
nitrogen-rich and oxygen-poor atmosphere favorable for food freshness keeping in the first
storage space 21. That is, the oxygen removing device extracts part or all of the oxygen
from the first storage space by using the principle of extracting the gas to the outside from
the inside of the first storage space 21, so that the nitrogen-rich and oxygen-poor
atmosphere favorable for food freshness keeping is formed in the first storage space 21. The
oxygen removing device may also be a withdrawable oxygen removing device.
It is known to those skilled in the art that normal air components comprise (by
volume percent, the same hereinafter): about 78% nitrogen, about 21% oxygen, about
0.939% rare gases (helium, neon, argon, krypton, xenon and radon), 0.031% of carbon
dioxide, and 0.03% of other gases and impurities (for example, ozone, nitrogen monoxide,
nitrogen dioxide, water vapor, etc.). The nitrogen-rich and oxygen-poor atmosphere
favorable for food freshness keeping in the present application refers to the atmosphere in
which the nitrogen content exceeds the nitrogen content in the normal air and the oxygen
content is lower than the oxygen content in the normal air. In the atmosphere, the oxygen
content in the space where the fruits and vegetables are preserved is reduced to reduce the
intensity of the aerobic respiration of the fruits and vegetables. Meanwhile, a basic
respiration function is ensured, thereby preventing anaerobic respiration of the fruits and
vegetables, and further achieving the purpose of long-term freshness keeping of the fruits
and vegetables.
In some embodiments of the present invention, the oxygen removing device
may comprise an air-conditioning membrane assembly 30 and a gas extracting device 40.
The air-conditioning membrane assembly 30 has at least one air-conditioning membrane 31
and an oxygen-rich gas collecting chamber. The surrounding space of the air-conditioning
membrane assembly 30 communicates with the first storage space 21, and the
air-conditioning membrane assembly 30 is configured such that more oxygen in the airflow
in the surrounding space of the air-conditioning membrane assembly 30 permeates through
the air-conditioning membrane 31 to enter the oxygen-rich gas collecting chamber relative
to the nitrogen therein. Specifically, the inside surface of each air-conditioning membrane
31 faces the oxygen-rich gas collecting chamber, so that when the pressure of the
oxygen-rich gas collecting chamber is lower than the pressure of the surrounding space of
the air-conditioning membrane assembly 30, more oxygen in the air in the outer space of the
air-conditioning membrane assembly 30 permeates through at least one air-conditioning
membrane 31 to enter the oxygen-rich gas collecting chamber relative to the nitrogen
therein.
The inlet end of the gas extracting device 40 communicates with the
oxygen-rich gas collecting chamber via a pipeline 50 to extract the gas permeating into the
oxygen-rich gas collecting chamber to the outside of the case body 20.
[0036] In the present embodiment, the gas extracting device 40 extracts the gas
outwardly, so that the pressure of the oxygen-rich gas collecting chamber is lower than the
pressure of the surrounding space of the air-conditioning membrane assembly 30, and
further, the oxygen in the surrounding space of the air-conditioning membrane assembly 30
can enter the oxygen-rich gas collecting chamber. Since the first storage space
communicates with the surrounding space of the air-conditioning membrane assembly 30,
the air in the first storage space will enter the surrounding space of the air-conditioning
membrane assembly 30. Therefore, the oxygen in the air in the first storage space can also
enter the oxygen-rich gas collecting chamber, thereby obtaining the nitrogen-rich and
oxygen-lean atmosphere favorable for food freshness keeping in the first storage space.
[0037] In some embodiments of the present invention, as shown in and
the air-conditioning membrane assembly 30 may be disposed on the case body 20. Further,
the air-conditioning membrane assembly 30 is in the form of a flat plate, and preferably
disposed on the top wall of the case body 20 horizontally. Specifically, an accommodating
chamber 22 communicating with the first storage space 21 is disposed in the top wall of the
case body 20. The air-conditioning membrane assembly 30 is disposed in the
accommodating chamber 22. At least one first vent hole 23 and a second vent hole 24 are
formed in a wall surface between the accommodating chamber of the top wall and the first
storage space. The at least one first vent hole 23 is spaced apart from the at least one second
vent hole 24, so as to communicate the accommodating chamber and the first storage space
at different positions. In some optional embodiments, the inner side of the top wall of the
case body 20 has a recessed groove. The air-conditioning membrane assembly 30 is
disposed in the recessed groove of the top wall of the case body 20.
In some embodiments of the present invention, in order to promote the flow of
the gas in the first storage space 21 and the accommodating chamber 22, the
air-conditioning freshness-keeping storage device further comprises a fan 60, which may be
disposed in the accommodating chamber 22. The fan is configured to promote the gas in the
first storage space 21 to enter the accommodating chamber 22 via the first vent hole 23, and
cause the gas in the accommodating chamber 22 to enter the first storage space 21 via the
second vent hole 24. That is, the fan 60 can promote the gas in the first storage space to be
returned to the first storage space 21 via the at least one first vent hole 23, the
accommodating chamber 22, and the at least one second vent hole 24 in sequence.
The fan 60 is preferably a centrifugal fan. The centrifugal fan is located above
the at least one first vent hole 23, and has an axis of rotation vertically downward and an air
inlet opening directly facing the first vent hole 23. An air outlet of the centrifugal fan may
face the air-conditioning membrane assembly 30. The air-conditioning membrane assembly
is disposed above the at least one second vent hole 24, such that each air-conditioning
membrane of the air-conditioning membrane assembly 30 is parallel to the top wall of the
case body 20. The centrifugal fan 60 is disposed at the front of the accommodating chamber
22, and the air-conditioning membrane assembly 30 is disposed at the rear of the
accommodating chamber 22. Further, the top wall of the case body 20 comprises a main
plate portion 25 and a cover plate portion 26. A recessed portion is formed in a partial
region of the main plate portion 25. The cover plate portion 26 is detachably disposed on the
recessed portion in a covering manner, so as to form the above accommodating chamber 22.
In order to facilitate the manufacture of the case body 20, the main plate portion 25 may be
integrally formed with the side wall, the bottom wall, and the rear wall of the case body 20.
In some embodiments of the present invention, the air-conditioning membrane
assembly 30 may also comprise a support frame 32 as shown in Two
air-conditioning membranes 31 may be disposed and mounted on both sides of the support
frame 32 respectively, so that the two air-conditioning membranes 31 and the support frame
32 form the oxygen-rich gas collecting chamber in a surrounding manner.
Further, the air-conditioning membrane assembly 30 is a flat-plate-type
oxygen-enriching membrane component, and each air-conditioning membrane 31 is an
oxygen-enriching membrane. The support frame 32 may comprise a frame, and structures
such as rib plates and/or flat plates disposed in the frame. Airflow channels may be formed
between the rib plates and between the rib plates and the flat plates; and the surfaces of the
rib plates and the surfaces of the flat plates may be provided with grooves to form the
airflow channels. The rib plates and/or the flat plates may increase the structural strength
and the like of the air-conditioning membrane assembly 30. That is, the flat-plate-type
oxygen-enriching membrane component further comprises a support frame having a first
surface and a second surface parallel to each other. The support frame is provided with a
plurality of airflow channels extending on the first surface and the second surface
respectively, and penetrating the support frame to communicate the first surface with the
second surface. The plurality of airflow channels forms the oxygen-rich gas collecting
chamber together. The at least one oxygen-enriching membrane is two planar
oxygen-enriching membranes which are paved on the first surface and the second surface of
the support frame respectively.
In some embodiments of the present invention, the support frame 32
comprises an air extracting hole 33 communicating with the above at least one airflow
channel and disposed in the frame, so that the oxygen in the oxygen-rich gas collecting
chamber is allowed to be output. The air extracting hole 33 communicates with the air
extracting device 40. Specifically, the air extracting hole 33 may be disposed in the long
side or the short side of the frame, which is determined according to the set orientation of
the air-conditioning membrane assembly 30 or actual design requirements. For example, in
the embodiment shown in and the air extracting hole 33 may be disposed in
the long side of the frame. The air-conditioning membrane 31 is mounted onto the frame by
a double-sided adhesive tape 34 at first, and then sealed by a sealant 35.
In some embodiments, the at least one airflow channel formed inside the
support frame 32 may be one or more cavities communicating with the air extracting hole
33. In some embodiments, the at least one airflow channel formed inside the support frame
32 may be of a grid structure. Specifically, the support frame 32 may comprise a side frame,
a plurality of first rib plates, and a plurality of second rib plates. The plurality of first rib
plates is longitudinally disposed inside the frame at an interval and extends transversely.
One side surfaces of the plurality of first rib plates form the first surface. The plurality of
second rib plates is transversely disposed at an interval on the other side surface of the
above plurality of first rib plates and extends longitudinally. One side surfaces of the
plurality of second rib plates away from the first rib plates form the second surface. In the
support frame 32 according to the present invention, the plurality of first rib plates
longitudinally disposed at an interval and transversely extending and the plurality of second
rib plates transversely disposed at an interval on one side surface of the plurality of first rib
plates and longitudinally extending are disposed inside the frame, so that the continuity of
the airflow channels is ensured on one hand, the size of the support frame 32 is greatly
reduced on the other hand, and the strength of the support frame 32 is greatly enhanced. In
addition, the above structure of the support frame 32 ensures that the air-conditioning
membrane 31 can obtain sufficient support, and can maintain better flatness all the time
even when the negative pressure inside the oxygen-rich gas collecting chamber is relatively
higher. Thus, the long service life of the air-conditioning membrane assembly 30 is ensured.
[0044] In a further embodiment, the plurality of first rib plates may comprise a
plurality of first narrow rib plates and a plurality of first wide rib plates. The plurality of
first wide rib plates is disposed at an interval, and the plurality of first narrow rib plates is
disposed between every two adjacent first wide rib plates. The plurality of second rib plates
may comprise a plurality of second narrow rib plates and a plurality of second wide rib
plates. The plurality of second wide rib plates is disposed at an interval, and the plurality of
the second narrow rib plates is disposed between every two adjacent second wide rib plates.
Those skilled in the art will readily understand that “wide ” and “narrow ” herein are relative.
In some embodiments, each of the first wide rib plates is recessed inwardly
from a side surface thereof on which the first surface is formed to form a first trench. Each
of the second wide rib plates is recessed inwardly from a side surface thereof on which the
second surface is formed to form a second trench, thereby improving the communication of
the internal grid structure under the premise of ensuring that the thickness of the support
frame 32 is very small (or the size is very small).
In a further embodiment, a partial surface of each of the first wide rib plates
deviated away from the first surface extends toward the second rib plate to be flush with the
second surface. The first wide rib plate is recessed inwardly from the partial surface which
is flush with the second surface to form a third trench. The intersecting parts the third trench
and the second trench are communicated to form a cross trench. A partial surface of the at
least one of the plurality of second wide rib plates deviated away from the second surface
extends toward the first rib plate to be flush with the first surface. At least one of the
plurality of second wide rib plates is inwardly recessed from the partial surface which is
flush with the first surface to form a fourth trench. The intersecting parts of the fourth
trench and the first trench are communicated to form a cross trench.
[0047] In some embodiments of the present invention, in order to facilitate the flow
of the airflow, the inner surface of the cover plate portion 26 may extend downwardly to
form a plurality of air guiding rib plates, so as to guide the airflow from the fan 60 to flow
through the outside surface of each air-conditioning membrane 31 of the air-conditioning
membrane assembly 30 deviated away from the oxygen-rich gas collecting chamber in the
accommodating chamber. The plurality of air guiding rib plates may be divided into two
groups, comprising a first group of air guiding rib plates and a second group of air guiding
rib plates which are symmetrically disposed with the first group of air guiding rib plates
about a plane. Each group of air guiding rib plates comprises a first air guiding rib plate, at
least one second air guiding rib plate, and at least one third air guiding rib plate. The first air
guiding rib extends from the air outlet of the centrifugal fan to one side of the
accommodating chamber to a transverse outer side of the air-conditioning membrane
assembly 30. Each second air guiding rib plate is disposed between the two first air guiding
rib plates and between the air-conditioning membrane assembly 30 and the centrifugal fan.
Each third air guiding rib plate is located on a transverse outer side of the air-conditioning
membrane assembly 30. Thus, airflow is guided to enter the gap between the
air-conditioning membrane assembly 30 and the bottom or top surface of the
accommodating chamber from two transverse sides of the air-conditioning membrane
assembly 30.
In some embodiments of the present invention, a plurality of air pressure
balancing holes may be formed in the case body 20; and the first storage space 21
communicates with the outside space of the first storage space 21 via the plurality of air
pressure balancing holes. Each of the air pressure balancing holes may be a millimeter-level
air pressure balancing hole. For example, each of the air pressure balancing holes has a
diameter of 0.1 mm to 3 mm, preferably 1 mm, 1.5 mm, or the like. With the plurality of air
pressure balancing holes, the pressure in the first storage space 21 is not too low. Due to the
plurality of air pressure balancing holes, the nitrogen in the first storage space 21 will not
flow outwardly; even if the nitrogen flows, the flow is very small or even negligible, which
will not adversely affect the freshness keeping of food in the first storage space 21. In some
optional embodiments of the present invention, the air pressure balancing hole may not be
disposed in the case body 20. Even so, a large amount of gases such as nitrogen still exists
in the first storage space 21. The user can open the drawer 28 without too much effort; and a
lot of effort will be saved compared to the existing vacuum storage room.
In some embodiments of the present invention, the air-conditioning
freshness-keeping storage device further comprises a box body 10 and a main door body. A
second storage space 11 may be defined in the box body 10. The case body 20 is mounted in
the second storage space 11. The main door body is pivoted on the box body 10 to open or
close the second storage space 11. That is, the air-conditioning freshness-keeping storage
device has a relatively larger space; but nitrogen-rich and oxygen-deficient freshness
keeping is performed only in a small space in the relatively larger space.
In some embodiments of the present invention, as shown in and
the air-conditioning freshness-keeping storage device further comprises a refrigerating
system configured to provide cold to the first storage space 21. Further, the refrigerating
system firstly supplies the cold to the second storage space 11, and then the cold is
transferred to the first storage space 21. Such an air-conditioning freshness-keeping storage
device having the refrigerating system is also generally referred to as a refrigerating and
freezing device, and may be, for example, a refrigerator at least having a refrigerating
compartment 11 and a freezing compartment 12. The refrigerating system may be a common
compression refrigerating system, a semiconductor refrigerating system or the like, which
provides the cold to a storage compartment by, for example, direct cooling and/or air
cooling, so that the storage compartment has a desired storage temperature. In some
embodiments, the storage temperature of the refrigerator refrigerating compartment may be
2 °C to 9 °C, or may be 4 °C to 7 °C. The storage temperature of the freezing compartment
may range from -22 °C to -14 °C, or -20 °C to 16 °C. Since such refrigerating systems are
well known and readily implemented by those skilled in the art, in order not to cover and
obscure the inventive aspects of the present application, the refrigerating system will not be
described in further detail below. The second storage space according to the embodiment of
the present invention may preferably be the refrigerating compartment, and may, of course,
be the freezing compartment or a temperature-changing compartment. Further, the relative
positions of the refrigerating space, the freezing space, and the temperature changing space
can be adjusted according to actual needs.
In some embodiments of the present invention, as shown in and
the lower part of the rear side of the box body 10 may have a mounting chamber 13. When
the refrigerating system is the compression refrigerating system, the mounting chamber 13,
also referred to as a compressor housing, may extend in a transverse direction of the case
body. The air extracting device 40 may comprise an air pump disposed in the mounting
chamber 13. Specifically, the air extracting device 40 may be mounted at a transverse end of
the mounting chamber 13.
[0052] In order to facilitate the mounting of the air pump and reduce the noise, and
the like, the air extracting device 40 may further comprise a mounting base plate and a
sealing box. The mounting base plate may be mounted on the bottom surface of the
mounting chamber 13 by a plurality of damping foot pads. The sealing box is mounted on
the mounting base plate. The gas extracting device 40 is mounted in the sealing box.
Further, a mounting frame is disposed in the sealing box, and the mounting frame and the
inner wall of the sealing box are connected by a plurality of damping cushion blocks. The
air pump is fixed in the mounting frame, so as to reduce the vibration and noise during
operation of the air pump. Specifically, the bottom of the mounting frame is provided with
two damping cushion blocks, and the damping cushion blocks sleeve positioning posts on
the bottom surface of the sealing box. One circular damping cushion block is disposed on
each of the two opposite sides of the mounting frame, and is clamped in a clamping groove
of the corresponding side wall of the sealing box. One damping cushion block is fixed on
each of the other two opposite sides of the mounting frame. The air pump may be located
among the various damping cushion blocks in the sealing box and fastened to the mounting
frame by screws.
In some embodiments of the present invention, a locking device, a handle and
a handle positioning device are disposed between the drawer 28 and the case body 20. The
locking device comprises pivoting lock catches disposed on both sides of an end cover of
the drawer, two buckling portions disposed on the case body 20, and a fastening promoting
device. Each buckling portion may be a protrusion. The fastening promoting device may be
configured to promote the two pivoting lock catches to rotate in the directions (i.e., their
respective first directions) to be engaged with their respective buckling portions. The handle
extends horizontally and may be slidably mounted to the end cover of the drawer in a
vertical direction. Moreover, when the drawer 28 is in the closed state, the position of the
handle may be the initial position of the handle. The handle is configured such that both
ends thereof are in contact with and abut against the two pivoting lock catches respectively
when in the initial position, to prevent each pivoting lock catch from rotating in the other
direction opposite to the corresponding first direction. Thus, the pivoting lock catches are
engaged with the buckling portions to lock the drawer 28 in the case body 20. Further, each
pivoting lock catch is allowed to rotate in the direction opposite to the corresponding first
direction when the handle is moved vertically to a locking releasing position, i.e., moved
from the initial position to the locking releasing position. The pivoting lock catches are
allowed to rotate to be disengaged from the corresponding buckling portions when the
drawer 28 is pulled outwardly, thereby opening the drawer 28. The handle positioning
device is configured to hold the handle in the predetermined position after the handle is
moved to each predetermined position, primarily including the initial position and the
locking releasing position. When the drawer is required to be opened, the user firstly moves
the handle vertically to enable the handle to reach the locking releasing position, the handle
positioning device holds the handle in such position, and then the user pulls the drawer 28
outwardly. When the drawer is required to be closed, the user firstly closes the drawer 28
and then returns the handle the initial position by moving it vertically, and the handle
positioning device holds the handle in such position, thereby holding the drawer 28 and the
case body 20 in a locked state.
[0054] In order to further smooth the movement of the handle, the two ends of the
handle are respectively provided with a guiding rod and a sliding block; and the guiding rod
extends in the vertical direction. The drawer 28 further comprises two groups of slideways;
and each group of the slideways at least has three chutes extending in the vertical direction,
so that two chutes are located at the both sides of the guide bar respectively, and the sliding
block moves on the remaining chute; or two chutes are located at the both sides of the
sliding block respectively, and the guiding rod moves on the remaining chute. For example,
each group of the slideways may comprise four chutes, wherein two chutes are located at the
front and rear sides of the guiding rode respectively; and two chutes are located at the
transverse two sides (i.e., the left and right sides) of the sliding block respectively.
[0055] In this regard, it will be appreciated by those skilled in the art that although
many exemplary embodiments have been shown and described in detail here, many other
variations or modifications consistent with the principles of the present invention can still
be directly determined or derived based on the content disclosed by the present invention
without departing from the spirit and scope of the present invention. Therefore, the scope of
the present invention should be understood and construed as covering all these variations or
modifications.
Claims (5)
1. An air-conditioning freshness-keeping storage device, comprising: a case body, wherein a first storage space is defined in the case body; and an oxygen removing device, configured to extract a part or all of the oxygen in the air in the first storage space from the first storage space to obtain a nitrogen-rich oxygen-poor atmosphere favorable for food freshness keeping in the first storage space; wherein the oxygen removing device comprises: an oxygen permeable membrane assembly, having at least one oxygen permeable membrane and an oxygen-rich gas collecting chamber, wherein the surrounding space of the oxygen permeable membrane assembly communicates with the first storage space, and the oxygen permeable membrane assembly is configured such that more oxygen in the airflow in the surrounding space of the oxygen permeable membrane assembly permeates through the oxygen permeable membrane to enter the oxygen-rich gas collecting chamber relative to the nitrogen in the airflow in the surrounding space of the oxygen permeable membrane assembly; and a gas extracting device, wherein the inlet end of the gas extracting device communicates with the oxygen-rich gas collecting chamber via a pipeline to extract the gas permeating into the oxygen-rich gas collecting chamber to the outside of the case body; wherein the oxygen permeable membrane assembly is a flat-plate-type oxygen permeable membrane component, and each of the oxygen permeable membranes is an oxygen permeable membrane, and wherein the flat-plate-type oxygen permeable membrane component further comprises a support frame having a first surface and a second surface parallel to each other, the support frame is provided with a plurality of airflow channels extending on the first surface and the second surface respectively and penetrating the support frame to communicate the first surface and the second surface, and the plurality of airflow channels forms the oxygen-rich gas collecting chamber together; and at least one of the oxygen permeable membranes is two planar oxygen permeable membranes which are placed on the first surface and the second surface of the support frame respectively; and an accommodating chamber communicating with the first storage space is disposed in a top wall of the case body, and the oxygen permeable membrane assembly is disposed in the accommodating chamber, at least one first vent hole and at least one second vent hole spaced apart from the at least one first vent hole are formed in a wall surface between the accommodating chamber of the top wall and the first storage space, so as to communicate the accommodating chamber with the first storage space at different positions, the air-conditioning freshness-keeping storage device further comprises: a centrifugal fan disposed in the accommodating chamber to promote the gas in the first storage space to be returned to the first storage space via the at least one first vent hole, the accommodating chamber, and the at least second vent hole in sequence, the centrifugal fan is located above the at least one first vent hole, and has an axis of rotati on vertically downward and an air inlet opening directly facing the first vent hole, an air outlet of the centrifugal fan faces to the oxygen permeable membrane assembly, the oxygen permeable membrane assembly is disposed above the at least one second vent hole, such that each oxygen permeable membrane of the oxygen permeable membrane assembly is parallel to the top wall of the case body.
2. The air-conditioning freshness-keeping storage device according to claim 1, wherein the case body is provided with a plurality of gas pressure balancing holes, and the first storage space communicates with the outside space of the case body via the plurality of gas pressure balancing holes.
3. The air-conditioning freshness-keeping storage device according to claim 1, further comprising a drawer, wherein the drawer is slidably mounted in the first storage space to be outwardly withdrawn from and inwardly inserted into the first storage space operatively from a forward opening of the first storage space.
4. The air-conditioning freshness-keeping storage device according to claim 1, further comprising a refrigerating system configured to provide cold to the first storage space.
5. The air-conditioning freshness-keeping storage device according to claim 1, further comprising a box body, wherein a second storage space is defined in the box body; and the case body is mounted in the second storage space. FIG. 6
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611097466.3 | 2016-12-02 | ||
CN201611097466.3A CN106628640B (en) | 2016-12-02 | 2016-12-02 | Controlled atmosphere article-storage device |
PCT/CN2017/114266 WO2018099476A1 (en) | 2016-12-02 | 2017-12-01 | Air-regulating freshness-preserving food storage device |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ753838A NZ753838A (en) | 2020-12-18 |
NZ753838B2 true NZ753838B2 (en) | 2021-03-19 |
Family
ID=
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