Background technology
In general, refrigerator includes refrigerating chamber and refrigerating chamber.In addition, a certain side at refrigerating chamber is provided with the vegetable compartment that can store greengrocery food and the following general name of melon and fruit based food " greengrocery food " by adjusting humidity separately freshlyer.Therefore, the vegetable compartment in the above-mentioned refrigerating chamber can become an example of food conservation container.
Describe the refrigerator of fabricated food reservoir vessel in the past in detail below in conjunction with accompanying drawing 1.Fig. 1 demonstrates a kind of food conservation container 20 and is positioned at the refrigerating chamber bottom of refrigerator and the erect-type refrigerator that refrigerating chamber is positioned at refrigerating chamber top.
The known effect factor that the greengrocery food freshness descends comprises temperature, humidity, environmental gas, microorganism and light etc.Because greengrocery food continues oxygen uptake and continues moisture and distribute, so will suppress oxygen uptake for the freshness that keeps greengrocery food and moisture distributes.Specifically, except the part greengrocery food that can cause obstacle under low-temperature condition, the oxygen uptake under low-temperature condition of most of greengrocery food is suppressed, and can prevent that under the high humility state moisture from distributing.
Therefore, in order to keep the freshness of greengrocery food for a long time, the private space that the refrigerating chamber of general home electric refrigerator setting and refrigerator separates, instant food reservoir vessel for storage greengrocery food.Food conservation container utilizes greengrocery food to come out when keeping suitable low-temperature condition moisture keeps humidity.Therefore, these food conservation containers can keep the freshness of greengrocery food for a long time.
As mentioned above, keep suitable temperature and humidity can keep the greengrocery food freshness for a long time, simultaneously, also proposed recently to utilize the another kind of factor that influences freshness, promptly utilize light to keep the method for greengrocery food freshness.
High light promotes the photochromic variation and the aqueous dispersion outbreak usefulness of food, and food is had baneful influence.On the contrary, weak relatively light has the maintenance effect of Neng Zeng Jin greengrocery food freshness.In addition, such low light level especially suppresses the decomposition of Chlorofucsin hlorophyll and keeps the vitamin C aspect also to produce effect for green leaf vegetables.
The refrigerator that demonstrates among Fig. 1 is documented in Japan Patent and discloses in flat 09-28363 number.Downside at refrigerator 10 is provided with food conservation container 20, be that food conservation container 20 is equipped with irradiation irradiation with weak light device 23 in addition, with the decline of the Chlorofucsin hlorophyll concentration that prevents green leaf dish class, consequently refrigerator 10 forms the structure that can prevent that the leaf vegetables quality from descending.
Especially, refrigerator 10 is opened illuminating lamp 29, operation irradiation unit 23 under drawer type food conservation container closing state in order to allow the user observe apotheca 21 inside easily when the drawer type food conservation container is open.As mentioned above, utilize light can prevent that the quality of green leaf vegetables from descending.
And, it is to constitute above-mentioned irradiation unit 23 with the LED of spectrum in the visible region that Japan Patent discloses flat 11-159953 number, so, the caloric value of irradiation unit 23 reaches and minimizes, prevent that the temperature in the apotheca 21 from rising, and also has the efficient higher than other irradiation unit simultaneously.
In addition, at Japan Patent the form of having put down in writing in 2005-49093 number for the red light emitting diodes of the suitable about 660mm wavelength of green leaf vegetables is disclosed.
Put down in writing in open 2005-65622 number of the Japan Patent food conservation container is divided into a plurality of apothecas after, according to the kind of greengrocery food light-struck irradiation unit with suitable wavelength.More particularly, the light emitting diode terminal uses red and cyan and 3 green look light emitting diode terminals, according to photochromic irradiation of the alternative combination of the kind of greengrocery food.
But there are following several shortcomings in the refrigerator of above-mentioned prior art.
First, though irradiation unit in the past makes up photochromic back and selects in 3 look light emitting diodes, but red, cyan and green light emitting diode do not have obvious effects for concrete certain food, thus the effect of irradiation unit in the freshness that keeps storage food and prevent that chlorophyll from reducing aspect fainter.
The second, the photochromic of light emitting diode limits, is difficult to be combined into the photochromic shortcoming that is suitable on the numerous food so exist.
The 3rd, though that irradiation unit in the past can utilize the light emitting diode terminal of 3 looks to select is photochromic, as mentioned above, can not knowing certain concrete food, suitable which kind of is photochromic, thus selecting arrangement select photochromic function practicality not high.
Even specifically draw according to the kind of food by experiment effectively photochromic, but want the user to remember to select photochromic after these information one by one or seek relevant information after select the photochromic of irradiates light, be quite numerous and diverse thing for the user.
The 4th, for the food that in experiment, does not spell out, have no way of selecting the photochromic of irradiates light, the user can not know the photochromic storage food that whether is suitable for that oneself is selected, so there is the shortcoming that descends for the irradiation unit reliability.
The specific embodiment
Describe the present invention in detail below in conjunction with accompanying drawing and preferred embodiment.In the declarative procedure of present embodiment, use identical title and identical symbol for identical structure, and no longer repeat specification.
Describe refrigerator the 1st embodiment basic structure of the present invention in detail below in conjunction with Fig. 2 to Fig. 4.
Present embodiment is the refrigerator that refrigerating chamber and refrigerating chamber lay respectively at the side-by-side setting in right side and left side.Therefore, the refrigerator of present embodiment is separately positioned on the right side and the left side of refrigerator body and the refrigerating chamber bottom fabricated food reservoir vessel 200 in refrigerator body to refrigerating chamber and refrigerating chamber.
Above-mentioned food conservation container 200 comprises by a plurality of apotheca 210a, b, c, irradiation unit 230a, b, c and selecting arrangement 250a, b, c etc.
Above-mentioned a plurality of apotheca 210a, b, c are the receiving spaces for storage food, are formed by base plate and left and right sides wall.In the present embodiment, above-mentioned apotheca 210a, b, c have the structure that can allow the user take out or put into food easily and open and close with sliding type.
But the switching mode of above-mentioned apotheca 210a, b, c does not limit in the present embodiment, and apotheca 210a, b, c can be provided with the structure that opens and closes from top that the door of hinge constitutes by top, can also constitute other form certainly.
In order to prevent that moisture from leaking out to the outside, food conservation container 200 constitutes the structure of sealing.Because apotheca 210a, b, c constitute the structure of sealing, the moisture that utilizes food to come out can keep the humidity in apotheca 210a, b, the c for a long time.
And apotheca 210a, b, c are divided into several apotheca spaced apart from each other.In the present embodiment, as shown in Figure 4, food conservation container 200 constitutes 3 apotheca 210a, 210b of direction separation up and down, the form of 210c.
Among apotheca 210a, b, the c, at least more than one apotheca is provided as the register 280 of regulating temperature in apotheca 210a, b, the c for the memory function that has both meat or greengrocery food.
Irradiation unit 230a, b, c play the effect of irradiation visible light in several apotheca 210a, b, c respectively.
Visible light is meant the wavelength light of the observed scope of naked eyes energy, and different people all has some differences.But, roughly in 380~770nm wave-length coverage.In visible-range, different wavelength change shows as different photochromic, and wavelength begins to shorten to purple gradually from redness.For example, under monochromatic situation, 700~610nm shows as redness, and 610~590nm shows as vermilion, and 590~570nm shows as yellow, and 570~500nm shows as green, and 500~450nm shows as blueness, and 450~400nm shows as purple.
In the time of the region of ultra-red that wavelength is longer than 770nm light-struck, the temperature in apotheca 210a, b, the c rises, and the surface temperature of storage food also rises simultaneously, and the food surface variable color, so have adverse effect for the freshness aspect that keeps food.Therefore, to irradiate the light of visible region be best for irradiation unit 230a, b, c.
Just, the visible region of red series and the visible region and the ultraviolet light zone of infrared light region and purple series can not be distinguished accurately, so also include part infrared light region and ultraviolet light zone in the wave-length coverage of visible region in the visible region that the present invention points out.
And the formation of irradiation unit 230a, b, c comprises: substrate 233a, b, c, be installed in luminous terminal 231a, b, c on substrate 233a, b, the c, and prevent that moisture is penetrated in luminous terminal 231a, b, the c and avoids its impaired over cap 237a, b, c.
To above-mentioned luminous terminal 231a, b, the kind of c still constitutes best with a plurality of LEDs without limits.Above-mentioned light emitting diode other luminous terminal caloric value that compares is few, and efficient is also higher comparatively speaking, so be applicable to above-mentioned food conservation container 200.
Present embodiment is to constitute above-mentioned luminous terminal 231a, b, c with light emitting diode, so the caloric value of irradiation unit 230a, b, c minimizes, and can reach the temperature that causes by luminous terminal 231a, b, the c minimized purpose that rises, and compare with other irradiation units and also to have low power consumption.
And irradiation unit 230a of the present invention, that b, c set out different irradiations according to the food tone that stores in above-mentioned apotheca 210a, b, the c is photochromic.
The present invention draw by experiment storage food the most effective photochromic be that tone according to storage food decides.Therefore, therefore present embodiment constitutes the tone classification of numerous food according to food and can set out the photochromic structure of different irradiations.
The food of 200 li storages of food conservation container mainly is divided into greengrocery food and melon and fruit class.And greengrocery food specifically is divided into the stem leaf vegetables that eats leaf and stem according to edible part, the root vegetables of edible root and ground Rigen's stem, and the fruit thing class of edible fruit.
The present invention classifies the greengrocery food of above-mentioned variform and melon and fruit class according to tone, it is photochromic to set out different irradiations separately.
The corresponding various food tones that the present invention draws by experiment the most effective photochromic listed by following table.
Table
| The tone of food |
Corresponding food for example |
Light emitting diode combined |
| Red |
Apple, strawberry, cherry, plum |
R |
| Green |
Various edible wild herbs, cucumber, Chinese cabbage, foreign romaine lettuce |
G,W |
| White |
Garlic, ginger, onion, mushroom, potato |
W |
| Yellow |
Orange, orange, shaddock |
Y,W |
| Purple |
Grape, eggplant |
R,B |
Here, R represents red light emitting diodes, and G represents green LED, and B represents blue LED, and Y represents yellow light-emitting diode, and W represents white light-emitting diode.
Especially, as above show described, the present invention drawn by experiment keep freshness and prevent chlorophyll concentration decline aspect effective method.That is, shine behind the green and white light, for shining behind the food combination yellow of Yellow series look and the white light, for shining behind the food display predetermined colors in combination of purple palette and the blue light for the combination of the food of green-series look.
And the present invention classifies above-mentioned food according to different tones, and shines the food of above-mentioned classification respectively with corresponding light emitting diode in conjunction with last table, and the freshness of measuring storage food then after after a while changes difference.
Measurement result, compare with the situation that the white light-emitting diode of visible light series shines without exception with all food, the metachromatism of food obviously reduces, and the situation that dry-out phenomenon occurs also obviously reduces, also the phenomenon that mouldy phenomenon can not occur and deliquescing can take place hardly.
Fig. 4 has demonstrated the user mode of apotheca.For example, the food that stores as mentioned above according to the tone classification after, in apotheca 210a, b, c, be positioned at the celery and the green onion that store in the 1st apotheca 210a of topmost corresponding to green-series, be positioned at tomato and the strawberry that stores in the 2nd apotheca 210b of middle part corresponding to red series, be positioned at the Chinese cabbage that stores in the 3rd apotheca 210c of foot corresponding to green-series.
In addition, the position of irradiation unit 230a, b, c without limits.That is, irradiation unit 230a, b, c can be arranged on the downside of the upside of apotheca 210a, b, c or apotheca 210a, b, c.Present embodiment shown in Figure 4, irradiation unit 230a, b, c are arranged on the upside of apotheca 210a, b, c.
Selecting arrangement 250a, b, c are arranged on the diverse location in upper panel 270a, b, c the place ahead.And, selecting arrangement 250a, b, c are made of 7 buttons respectively, can the running of irradiation unit 230a, b, c be stopped by stop button off, perhaps by control irradiation unit 230a, b, c running by the food tone of 5 kinds of series classification, it is photochromic perhaps by switching button As time goes on irradiation unit 230a, b, c to be changed.Detailed description 8 explanations in the back in conjunction with the accompanying drawings to above-mentioned selecting arrangement 250a, b, c.
And though do not illustrate, above-mentioned food conservation container 200 also comprises promising perception apotheca 210a, the switching detecting sensor whether b, c open and close.In addition, whether the switching of refrigerator by above-mentioned switching detecting sensor perception apotheca 210a, b, c to be, and under the apotheca closing state, make irradiation unit 230a, b, c is luminous and shine.
Describe luminous terminal installation site among refrigerator the 1st embodiment in detail below in conjunction with Fig. 5.
The installation of above-mentioned luminous terminal 231a, b, c position can show as variform, still, is best with the uniform irradiation storage food.Fig. 5 is the position of luminous terminal 231a, b, c and an example of installation, demonstrates altogether the structure of irradiation unit in the 1st apotheca 230a among 3 apotheca 210a, b, the c.As shown in Figure 5, at the upper panel 270a central part of apotheca 210a upside red light emitting diodes 231aR, green LED 231aG, white light-emitting diode 231aW, blue LED 231aB and yellow light-emitting diode 231aY are installed.
More particularly, the circle that constitutes the centre with identical angular separation, is installed redness, green, white, blue and yellow light emitting diode 231aR, 231aG, 231aW, 231aB and 231aY separately in each sector space that is separated.
And some are best to luminous terminal in order to be adjusted into the irradiating angle of light greatly to storage food uniform irradiation light.
Describe refrigerator the 2nd embodiment of the present invention in detail below in conjunction with Fig. 6.
Upper panel 370a corresponding to topmost the 1st apotheca 210a only is described for convenience's sake.
It is identical that the basic structure of present embodiment is caught up with the 1st embodiment that states.Just, irradiation unit 230a is not installed concentratedly in the centre of upper panel 370a in the present embodiment, but irradiation unit 230a at intervals is installed on the upper panel 370a.
That is, the scheme to food uniform irradiation light of the present invention is: red, green, the white of horizontal and vertical installation separated by a distance, blue and yellow light emitting diode 231aR, 231aG, 231aW, 231aB and 231aY on whole of the upper panel 370a of apotheca 210a upside.
Describe refrigerator the 3rd embodiment of the present invention in detail below in conjunction with Fig. 7.
Present embodiment is caught up with and is stated the 1st, 2 embodiment differences, and irradiation unit 430a, b, c are not installed in upside, and are mounted in the outer proceeds posterolateral of apotheca 210a, b, c.
That is, irradiation unit 430a, b, c are integrally formed at the outer proceeds posterolateral and the refrigerator body of apotheca.Therefore, the irradiates light of irradiation unit 430a, b, c shines in apotheca 210a, b, the c after seeing through the sidewall that forms apotheca 210a, b, c.
Thus, in the present embodiment, the sidewall that forms above-mentioned apotheca 210a, b, c is made as best with the material of printing opacity.
And; in the present embodiment; above-mentioned irradiation unit is irradiates light in separated each apotheca 210a, b, c about the same energy with the 1st embodiment; its formation comprises: substrate 433a, b, c; be installed in luminous terminal 431a, b, c on substrate 433a, b, the c, prevent from that moisture is penetrated into to prevent over cap 437a, b, the c that it is impaired in luminous terminal 431a, b, the c.
Demonstrate irradiation unit 430a, b in the present embodiment, c installs luminous terminal 431a, b, c concentratedly the form of proceeds posterolateral one side outside, but, just as the 2nd embodiment also outside proceeds posterolateral in the scope that is installed in broad separated by a distance of direction in length and breadth.
Describe selecting arrangement of the present invention in detail below in conjunction with Fig. 8.
In the present embodiment, above-mentioned selecting arrangement 250a, b, c are separately positioned on the position, the place ahead of upper panel 270a, b, c.Fig. 8 demonstrates the structure that is equivalent to the selecting arrangement 250a of the 1st apotheca 210a among selecting arrangement 250a, b, the c.
In the present embodiment, selecting arrangement 250a is made of 7 buttons altogether, more particularly, comprise that X button 251a, red selector button 252a, green choice button 253a, yellow selector button 254a, white selector button 255a, purple selector button 256a and translative mode selector button 257a constitute.
X button 251a plays the selection function of closing the irradiation unit running, selects to use when stopping the irradiation unit running.
Red selector button 252a, green choice button 253a, yellow selector button 254a, white selector button 255a and purple selector button 256a play the function of the corresponding separately look food of selection.And in order to improve user's identity, the tone of above-mentioned selector button also will constitute best with corresponding tone.In addition, because each selector button is relative with the tone of food, so very effective aspect the raising User Recognition.
It is that strawberry and tomato with red series food marks that Fig. 8 demonstrates red selector button, the green choice button is to mark with the celery of green serial food and green onion, yellow selector button is that the orange with Yellow series food marks, the white selector button is that the potato with white series food marks, and the purple selector button is that the grape with the purple series food marks.
Above-mentioned translative mode selector button 257a is a button of selecting As time goes on to change the photochromic pattern of irradiation.
Selecting arrangement among Fig. 8 is with the button morphosis, but the mode that above-mentioned selecting arrangement also can adopt the rotation of selector to achieve the goal can also adopt other various deformation forms in addition.
The present invention is owing to be provided with aforesaid selecting arrangement 250a, b, c, thus the user can directly select the tone of food after conversion photochromic, but also can select to make the photochromic As time goes on conversion of irradiation after the translative mode.
Up to the present only illustrated that food conservation container of the present invention is applicable to the form of parallel refrigerator, but food conservation container of the present invention is applicable to too and refrigerating chamber is set on top and is provided with in the bottom on the erect-type refrigerator of refrigerating chamber.
Illustrate that refrigerator operation principle of the present invention is as follows.
At first, user's storage food, and to the light in the storage food irradiation visible region.At this moment, the photochromic combination by light such as red, green, blueness, yellow and whites of above-mentioned irradiation constitutes.And the photochromic basis of irradiation is set corresponding to the food tone that stores in the apotheca as mentioned above.
And the photochromic of above-mentioned irradiation can be changed, and the user utilizes selecting arrangement can select the tone of storage food, so can change photochromic corresponding to the tone of above-mentioned selection food behind the tone of selection storage food.
Can As time goes on change the photochromic of irradiation food, so can keep freshness to storage food equably.
Up to the present, mainly with greengrocery food be object description above-mentioned food conservation container be applicable to example on the refrigerator, but the present invention does not limit in the above-described embodiments.With numerous food such as meat, cereal, pickles and drinks is object, is applicable to too except refrigerator on the multiple products such as kimchi refrigerator, rice bucket and grape wine storage cabinet.
Therefore, the those skilled in the art of the technical field of the invention can propose the various deformation example under the prerequisite that does not break away from spirit of the present invention, and these variation also belong to scope of the present invention.