CN101766321A - Ultra-long-term freshness preserving system - Google Patents
Ultra-long-term freshness preserving system Download PDFInfo
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- CN101766321A CN101766321A CN200810205073A CN200810205073A CN101766321A CN 101766321 A CN101766321 A CN 101766321A CN 200810205073 A CN200810205073 A CN 200810205073A CN 200810205073 A CN200810205073 A CN 200810205073A CN 101766321 A CN101766321 A CN 101766321A
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Abstract
The invention relates to an ultra-long-term freshness preserving system which can be applied to a refrigerator and installed in a refrigerating chamber of the refrigerator. The system comprises a freshness preserving box, an oxygen enriching membrane, a vacuum pump, a pressure sensor, a control plate and gas delivering pipes, wherein the oxygen enriching membrane is fixed in the freshness preserving box and connected with a gas sucking opening of the vacuum pump by the first gas delivering pipe penetrating through the wall of the freshness preserving box; an exhaust opening of the vacuum pump is led outside a box body for mounting the ultra-long-term freshness preserving system by the second gas delivering pipe; the pressure sensor is fixed to the first gas delivering pipe to sense the pressure in the freshness preserving box, and a signal line is connected with the control plate; and the control plate is connected with and controls the vacuum pump. The invention has ultrastrong freshness preserving function and can effectively improve the storing time of food stored in the refrigerator by being applied to the refrigerator; compared with the refrigeration of a common refrigerator, the invention is expected to be improved by 2-3 times. In addition, the invention can provide high-concentration oxygen for a room, has a plurality of advantages and practical values, and greatly improves the practicability and the healthy performance of the refrigerator.
Description
Technical field
The invention belongs to the food preservation field, relate to the fresh-keeping system of food.
Background technology
Along with the raising of people's living standard, refrigerator is very universal.It mainly comprises refrigerating chamber and refrigerating chamber, and people mainly store with refrigerating chamber needs long-term food such as meat, fish etc. of placing, and is suitable for refrigerating chamber storage FF such as fruit, vegetables etc.Recently, the quickening of people's rhythm of life, increasing people concentrates shopping weekend, and is more and more higher to the quality guarantee period requirement of food, strong day by day to the demand of fridge freshness retaining function.At present refrigerator is no more than time in 1 week to the greengrocery food preservation time, especially leaf vegetables such as caraway, spinach vegetables in refrigerator, store less than a week with regard to problems such as being easy to dehydration to occur, doing listless, flavescence, be rotten
Summary of the invention
The object of the present invention is to provide a kind of ultra-long-term freshness preserving system, it can be applicable to refrigerator, can improve the fresh-keeping chamber of preservation of vegetables environment such as temperature, humidity, atmosphere, and the shelf life storage that refrigerates than general refrigerator is expected to improve 2～3 times.
For reaching above purpose, solution of the present invention is:
A kind of ultra-long-term freshness preserving system, it comprises crisper, oxygen permeable membrane, vavuum pump, pressure sensor, control panel, appendix, oxygen permeable membrane is fixed in the crisper, and link to each other with the vavuum pump air entry by first appendix that passes the crisper wall, the exhaust outlet of vavuum pump causes by second appendix the external of exaltation phase fresh-keeping system casing is installed; Pressure sensor is fixed in the first appendix sensing crisper internal pressure, and its holding wire links to each other with control panel, and control panel connects the control vavuum pump and keeps being in the state of compressing in the crisper.
Further, this crisper is fixed in the casing, and it comprises main cartridge, drawer, is provided with the drawer guideway that drawer freely spurs in the main cartridge thereon, and drawer is provided with handle pulling drawer and moves in main cartridge, and drawer cooperates with main cartridge is airtight.
The outer surface of this main cartridge is provided with reinforcement, and inside bottom is additional arc sheetmetal, and its both sides external also is provided with draw-in groove.
The top panel of this main cartridge is a transparent toughened glass, and all the other each faces are that ABS material integral molded plastic forms.
This outer surface reinforcement is triangle, rice font or quadrangle or the like.
This drawer door panel area is provided with the sealing ring that is used to seal.
The handle of this drawer is the pull bar form, and the pull bar both sides have the spring grab that cooperates with draw-in groove; And drawer door is provided with the rubber hole, and interlock has the stopper in fitted seal rubber hole on the pull bar.
The crisper internal pressure control vacuum-pump power supply switch that this control panel detects according to pressure sensor, keeping in the crisper is the atmospheric low pressure level in 0.7 atmospheric pressure～0.8.
This ultra-long-term freshness preserving system is applied to refrigerator, and it is indoor that it is installed on refrigerator cold-storage, and the exhaust outlet of second appendix is arranged at the compressor top and discharges gas.
Owing to adopted such scheme, the present invention to have following characteristics: the present invention has superpower fresh-keeping function, is applied to refrigerator and can effectively improves the holding time that refrigerator is preserved food, is expected to improve 2～3 times than general refrigerator refrigeration.In addition, can also give the indoor high-concentration oxygen that provides, have many advantages and practical value, improve practicality, the health of refrigerator greatly.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the schematic diagram of embodiment of the invention crisper.
Fig. 3 is an embodiment of the invention crisper open mode schematic diagram.
Fig. 4 is the local enlarged diagram of drawer door of the present invention.
The specific embodiment
The present invention is further illustrated below in conjunction with the accompanying drawing illustrated embodiment.
See also Fig. 1, the refrigerator body 1 of an embodiment of the present invention comprises refrigerating chamber 2, refrigerating chamber, three parts of temperature-changing chamber.Wherein, have a specific fresh-keeping system in the refrigerating chamber 2, this system is made up of crisper 3, oxygen permeable membrane 4, vavuum pump 5, first appendix 6, pressure sensor 7, control panel 8, second appendix 11.Crisper 3 is fixed in the refrigerating chamber of refrigerator, and crisper 3 built-in oxygen permeable membranes 4 in principle in order not hinder placement food, can be fixed on oxygen permeable membrane on the crisper inwall, on door, any one wall can.Oxygen permeable membrane 4 passes the crisper wall by first appendix 6 and is connected with vavuum pump 4 air entries that are fixed on crisper 3 outsides, and the exhaust outlet of vavuum pump 4 is guided into outside the refrigerator by second appendix 11, and the exhaust outlet 9 of second appendix 11 is positioned at compressor 10 tops.Pressure sensor 7 is installed in first appendix 6 simultaneously, its gas sampler communicates with crisper 3, can the sensing crisper pressure in 3, the holding wire of pressure sensor 7 is connected on the refrigerator control panel 8, control panel 8 connects vavuum pump 5, the switch of signal controlling vavuum pump 5 power supplys that can provide according to pressure sensor 7 is to guarantee the being in atmospheric low pressure level in 0.7 atmospheric pressure～0.8 in the crisper 3.Under this low pressure condition, the concentration of fruit vegetable organization internal ethene can reduce, and the histoorgan of fruit vegetable also can reduce the sensitiveness of ethene, thereby has slowed down the ripe and old and feeble of fruit vegetable histoorgan, plays obviously fresh-keeping effect.
The present invention is placed on oxygen permeable membrane 4 in the sealing crisper 3 of refrigerator, start the vavuum pump 5 that is connected with oxygen permeable membrane 4, oxygen molecule in the sealing crisper 3 gas separation membrane by oxygen permeable membrane 4 under condition of negative pressure is pooled in first appendix 6 and is outputed to outside the refrigerator 1 by vavuum pump 5, make the interior space oxygen at refrigerator 1 place increase, will help people's physical and mental health.Simultaneously, along with the oozing out and be discharged to outside the refrigerator 1 of oxygen, the ratio of the composition of air in the crisper 3 is changed in the crisper 3, and inert gas concentrations such as nitrogen increase, and suppress the respiratory metabolism of food, the activity of inhibitory enzyme, and ethene suppressing generates concerning fruit vegetable.In addition, because the effect of outwards bleeding of vavuum pump 5 is low-pressure state, reduce the concentration of fruit vegetable organization internal ethene in the seal box 3, reduce the sensitiveness of tissue, thereby slowed down the ripe and old and feeble of fruit vegetable histoorgan ethene.In addition, moisture is difficult for running off in the airtight container.Therefore, many aspects all help the fresh-keeping of food.
Wherein fridge freshness retaining box 3 is boxes of the sealing that is easy to open.When promptly needing to place the food vegetables, lid is easy to open food and puts into easily, and after placement finished, lid also was lockable sealed box easily.It is made up of main cartridge 31 and handle drawer 32.The top panel of main cartridge 31 is transparent toughened glass, needs in order to ensure the intensity of pressure, all the other each faces all are to adopt ABS material integral molded plastic to form, and its outer surface has triangle (also can adopt M shape, quadrangle or the like) reinforcement, and its inside bottom is added an arc sheetmetal 312.Main cartridge 31 is fixed in the refrigerating chamber, and its both sides external is provided with draw-in groove 311, and inner both sides are provided with drawer guideway, and handle drawer 32 can be installed on the drawer guideway of main cartridge and freely spur.On the handle drawer 32 individual pull bar 321 is arranged, the pull bar both sides have spring grab 322, around the door-plate of handle drawer sealing ring 325 are arranged.When drawer is closed, pull pull bar downwards, in the Spring Card dogging 322 tight draw-in grooves 311 on box body 31 of its both sides, the sealing ring on the handle drawer door-plate is pressed on the box wall.The stopper 323 that meanwhile links on the pull bar seals up the rubber hole 326 on the handle drawer door corresponding with it, has pinned so box is sealed.When needing to open drawer, upwards pull pull bar, the stopper 323 of interlock at first is pulled away from out the rubber hole 326 on the drawer door on the pull bar 321, makes the seal box inside and outside air pressure balance, spurs drawer pull bar 321 then, has just pulled the drawer out.
Oxygen permeable membrane 4 is a kind of gas separation membranes, it is a kind of permoselective membrane, utilize membrane oxygen enrichment technology, promptly utilize the selection permeability difference (speed of oxygen dissolving, diffusion, disengaging polymeric membrane be 2～5 times of nitrogen) of organic polymer nonporous film to nitrogen, oxygen, when pressure differential being arranged, just can obtain seeing through the oxygen-enriched air of film in the film both sides.Therefore, oxygen permeable membrane 4 is under vavuum pump 5 provides certain vacuum pressure (vacuum pressure is about 24kPa) condition, and oxygen permeates easily in the air, and nitrogen but is difficult to infiltration, thereby makes oxygen and nitrogen separation in the crisper 3.Oxygen-enriched air is collected and is transported to outside the refrigerator, air then is a nitrogen-rich air in the pure and fresh room air, crisper, the minimizing of oxygen concentration, the air of low pressure, rich nitrogen is preserved the food vegetables simultaneously, can reduce water loss, the respiratory metabolism that suppresses food, the activity of enzyme.Oxygen permeable membrane is the finished product that market can be purchased, and technical parameter requires: the about 3L/min of flow (can take the circumstances into consideration increase and decrease according to the size of sealed box), the oxygen concentration of infiltration about 30%.
But the stress level in the pressure sensor 7 sensing crispers 3, its pressure signal guarantees to be in the crisper 3 certain stress level (0.7 atmospheric pressure～0.8 atmospheric pressure) by the opening time of control panel 8 control vavuum pumps 5.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, for example can also be applied in two refrigerators or the clamshell doors refrigerator.Those skilled in the art should be within protection scope of the present invention for improvement and modification that the present invention makes according to announcement of the present invention.
Claims (9)
1. ultra-long-term freshness preserving system, it is characterized in that: it comprises crisper, oxygen permeable membrane, vavuum pump, pressure sensor, control panel, appendix, oxygen permeable membrane is fixed in the crisper, and link to each other with the vavuum pump air entry by first appendix that passes the crisper wall, the exhaust outlet of vavuum pump causes by second appendix the external of exaltation phase fresh-keeping system casing is installed; Pressure sensor is fixed in the first appendix sensing crisper internal pressure, and its holding wire links to each other with control panel, and control panel connects the control vavuum pump and keeps being in low-pressure state in the crisper.
2. ultra-long-term freshness preserving system as claimed in claim 1, it is characterized in that: this crisper is fixed in the casing, it comprises main cartridge, drawer, be provided with the drawer guideway that drawer freely spurs in the main cartridge thereon, drawer is provided with handle pulling drawer and moves in main cartridge, and drawer cooperates with main cartridge is airtight.
3. ultra-long-term freshness preserving system as claimed in claim 2 is characterized in that: the outer surface of this main cartridge is provided with reinforcement, and inside bottom is additional arc sheetmetal, and its both sides external also is provided with draw-in groove.
4. ultra-long-term freshness preserving system as claimed in claim 3 is characterized in that: the top panel of this main cartridge is a transparent toughened glass, and all the other each faces are that ABS material integral molded plastic forms.
5. ultra-long-term freshness preserving system as claimed in claim 3 is characterized in that: this outer surface reinforcement is triangle, M shape or quadrangle.
6. ultra-long-term freshness preserving system as claimed in claim 2 is characterized in that: this drawer door panel area is provided with the sealing ring that is used to seal.
7. ultra-long-term freshness preserving system as claimed in claim 2 is characterized in that: the handle of this drawer is the pull bar form, and the pull bar both sides have the spring grab that matches with draw-in groove; And drawer door is provided with the rubber hole, and interlock has the stopper in fitted seal rubber hole on the pull bar.
8. ultra-long-term freshness preserving system as claimed in claim 1 is characterized in that: the crisper internal pressure control vacuum-pump power supply switch that this control panel detects according to pressure sensor, keeping in the crisper is the atmospheric low pressure level in 0.7 atmospheric pressure～0.8.
9. as the described ultra-long-term freshness preserving system of above-mentioned claim, it is characterized in that: this ultra-long-term freshness preserving system is applied to refrigerator, and it is indoor that it is installed on refrigerator cold-storage, and the exhaust outlet of second appendix is arranged at the compressor top and discharges gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810205073A CN101766321B (en) | 2008-12-30 | 2008-12-30 | Ultra-long-term freshness preserving system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810205073A CN101766321B (en) | 2008-12-30 | 2008-12-30 | Ultra-long-term freshness preserving system |
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| CN101766321A true CN101766321A (en) | 2010-07-07 |
| CN101766321B CN101766321B (en) | 2012-10-24 |
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| CN200810205073A Expired - Fee Related CN101766321B (en) | 2008-12-30 | 2008-12-30 | Ultra-long-term freshness preserving system |
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