CN103874899A - Refrigerator - Google Patents
Refrigerator Download PDFInfo
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- CN103874899A CN103874899A CN201280050407.4A CN201280050407A CN103874899A CN 103874899 A CN103874899 A CN 103874899A CN 201280050407 A CN201280050407 A CN 201280050407A CN 103874899 A CN103874899 A CN 103874899A
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- China
- Prior art keywords
- light
- collecting article
- sensor
- light sensor
- key light
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- 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
- F25D27/00—Lighting arrangements
- F25D27/005—Lighting arrangements combined with control means
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- 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/06—Sensors detecting the presence of a product
Abstract
This refrigerator is provided with: a storage compartment having an opening at the front; a first light-emitting part (20a) disposed on the ceiling of the storage compartment; a first light detection part (21a) that detects light being emitted by the first light-emitting part (20a); and a recess (84) disposed on a side of the storage compartment. The first light detection part (21a) is disposed inside the recess. A refrigerator that is capable of estimating the storage state of items stored inside the refrigerator is thus provided. By performing control according to the storage state, the protection of freshness can be improved, and power consumption can be minimized by preventing excess refrigeration.
Description
Technical field
The present invention relates to freezer, particularly relate to the freezer in inside with the device that the receiving state in storehouse is detected.
Background technology
In recent years home-use freezer, the general indirect type of cooling that cold air is circulated in freezer by fan that uses.In existing freezer, carry out temperature according to the testing result of storehouse temperature and regulate control, make thus the temperature in storehouse remain suitable temperature.
For example, as making storehouse temperature keep uniform freezer, there is the freezer (for example, with reference to patent documentation 1) that is provided with movable cold air blowoff.
Figure 21 is the front elevation in the refrigerating chamber of freezer of prior art.
As shown in figure 21, be arranged at the movable cold air blowoff 102 in refrigerating chamber 101, cool-air feed to the left and right, realizes the homogenising of storehouse temperature thus.
But, in the freezer of prior art, allow to implement the homogenising of storehouse temperature, be also to infer temperature by the thermistor in storehouse, for the amount of the collecting article such as food of storage, configure the impact of these receiving states, do not consider.
Prior art document
Patent documentation
Patent documentation 1: Japanese kokai publication hei 8-247608 communique
Summary of the invention
The invention provides a kind of freezer that can infer the receiving state of the collecting article of freezer inside.
A kind of freezer, it comprises: have the receiving room of peristome, the first illuminating part in the end face setting of receiving room, the first optical detection part that the light irradiating from the first illuminating part is detected, the recess that is arranged at the side of receiving room above.In addition, the first optical detection part is arranged in recess.
Brief description of the drawings
Fig. 1 is the front elevation of the freezer of the first embodiment of the present invention.
Fig. 2 A is the sectional view of the 2A-2A line of Fig. 1 of the freezer of the first embodiment of the present invention.
Fig. 2 B is sectional view under the state that the freezer door of the freezer of the first embodiment of the present invention is opened, while observing from front.
Fig. 3 is the front elevation of the recess that disposes key light sensor, secondary optical sensor and blue led of the first embodiment of the present invention.
Fig. 4 is the sectional view of the 4-4 line of Fig. 3 of the recess that disposes key light sensor, secondary optical sensor and blue led of the first embodiment of the present invention.
Fig. 5 is the control block diagram of the freezer of the first embodiment of the present invention.
Fig. 6 is the flow chart that represents the Control the content of the receiving state detection of the freezer of the first embodiment of the present invention.
Fig. 7 is the sectional view that passes through receiving state that end face LED carries out and detect action for the first embodiment of the present invention is described.
Fig. 8 is the figure that passes through the characteristic that receiving state that end face LED carries out detects that represents the first embodiment of the present invention.
Fig. 9 is the sectional view that passes through receiving state that side below LED carries out and detect action for the first embodiment of the present invention is described.
Figure 10 is the figure that passes through the characteristic that receiving state that side below LED carries out detects that represents the first embodiment of the present invention.
Figure 11 represents that the receiving state by the detection data C obtaining after average to detection data A and detection data B of the first embodiment of the present invention detects the figure of characteristic.
Figure 12 for the first embodiment of the present invention is described, near optical sensor, there is the sectional view of the situation of barrier.
Figure 13 is for illustrating the first embodiment of the present invention, figure due near the example of the error that exists barrier to produce optical sensor.
Figure 14 be represent the first embodiment of the present invention, in the situation that there is barrier near optical sensor and do not exist receiving state barrier to detect the figure of characteristic.
Figure 15 for the first embodiment of the present invention is described, near optical sensor, be accommodated with the sectional view of the situation of reverberation.
Figure 16 is for the figure of the example that the first embodiment of the present invention, near error in the situation that being accommodated with reverberation optical sensor are described produce.
Figure 17 A is the figure that represents the relation of light wavelength that the difference according to the color of object of the first embodiment of the present invention produces and reflectivity.
Figure 17 B is the figure that represents the relation of light wavelength that the difference according to the color of object of the first embodiment of the present invention produces and reflectivity.
Figure 17 C is the figure that represents the relation of light wavelength that the difference according to the color of object of the first embodiment of the present invention produces and reflectivity.
Figure 18 is the figure of the relation of the illumination of the key light sensor while representing that near error effect the first embodiment of the present invention, there is reverberation optical sensor in the situation that and blue led are lighted.
Figure 19 represents that the revised receiving state of the first embodiment of the present invention detects the figure of characteristic.
Figure 20 is the major part sectional view of observing from the side of the blocking wall of the freezer of the second embodiment of the present invention.
Figure 21 is the front elevation in the refrigerating chamber of freezer of prior art.
Detailed description of the invention
Below, with reference to accompanying drawing, embodiments of the present invention are described.In addition, the present invention is not limited by these embodiments.
(the first embodiment)
Below, describe for the freezer 80 of the first embodiment of the present invention.
Fig. 1 is the front elevation of the freezer 80 of the first embodiment of the present invention, and Fig. 2 A is the sectional view of the 2A-2A line of Fig. 1 of this freezer 80, sectional view when Fig. 2 B is observing from front under the state that the refrigerating-chamber door 12a of this freezer 80 is opened.
Freezer 80 has the heat insulating box as freezer main body 11.Freezer main body 11 mainly comprises: use outer container, the interior case of being made up of ester mouldings such as ABS made of steel plate, be injected into the heat insulation material between outer container and interior case.
Be divided into multiple receiving rooms as the heat insulating box of freezer main body 11 by heat insulation.Particularly, be provided with refrigerating chamber 12 at topmost, arrange and be provided with ice-making compartment 13 and switching chamber 14 in the lower, transverse of refrigerating chamber 12.And, dispose refrigerating chamber 15 in the bottom of ice-making compartment 13 and switching chamber 14, dispose vegetable compartment 16 at foot.
Before each receiving room, be arranged on each front openings portion of freezer main body 11 for the insulated door of separating with outer gas.Near the central portion of the refrigerating-chamber door 12a of the formula that splits around of the insulated door as refrigerating chamber 12, dispose display part 17, it has can carry out the storehouse temperature setting, ice making of each chamber and the operating portion of setting such as cooling rapidly, shows testing result, the operational situation of freezer 80 etc. of receiving state.
In refrigerating chamber 12, in order can the food as collecting article etc. to be arranged and to be received, be provided with accepting rack 18 in multiple storehouses.In addition, be provided with and there is heat insulation material in inside and to the outstanding 12b of frame portion of inside-of-refrigerator at the face of the inside-of-refrigerator of refrigerating-chamber door 12a.In frame portion, 12b is provided with an accepting rack 19.
In storehouse, accepting rack 18 and door accepting rack 19 are made up of high materials of light transmission rate such as glass or transparent resins.The surface of accepting rack 18 and door accepting rack 19 in storehouse, makes the processing of light diffusion when the transmitance of having carried out keeping certain, can regulate the distribution of the brightness in refrigerating chamber 12.It is more than 50% that transmitance is now expected.In the time that transmitance is lower than this, there will be light to be difficult to the place arriving, therefore the accuracy of detection of receiving state may reduce.
In multiple storehouses, in accepting rack 18, be positioned at undermost orlop accepting rack 18b below, be provided with receiving room 40.This receiving room 40 is made up of the receiver that can extract out.Before receiver, also can be provided with at orlop accepting rack 18b and be made as the door that can open and close.
The open side (above) of door in freezer 80 is observed, and receiving room 40 arranges near right side wall.In the bottom, left side of receiving room 40, be provided with the little article box 81 of little article for receiving frequent taking-up etc.And, be provided with the egg accommodating container 82 for receiving egg on the top of little article box 81, be provided with the storage tank 41 for ice-making compartment 13 is supplied water in the left side of little article box 81.
Among multiple accepting racks 19, be positioned at undermost orlop door accepting rack 19b and other door and be projected into compared with accepting rack 19 inboard of refrigerating chamber 12.
In refrigerating chamber 12, be provided with the storehouse intraoral illumination 20 for illuminating in the storehouse in receiving room, make to improve as the visuality of the food of collecting article etc.From observing above in freezer 80, storehouse intraoral illumination 20 is configured in end face, left side wall and right side wall.
As the light source of storehouse intraoral illumination 20, use end face LED20a, b, multiple LED such as illuminating LED 20c～f and below, side LED20g, h.Side wall surface with illuminating LED 20c～f and side below the mode of LED20g arrange light source at longitudinal direction.Thus, can not irradiate refrigerating chamber longer in short transverse 12 entirety with omitting.
End face LED20a, b are the first illuminating part, and below, side LED20g, h are the second illuminating part.End face LED20a, b be arranged on than depth in storehouse 1/2 more by a side of door, expect to be arranged on than the vertical face joining with the end in the front of the accepting rack 18a of the superiors as accepting rack 18 in immediate storehouse more by a side of door.What further expect is, end face LED20a, b are arranged on the end face of the top of space alpha, above-mentioned space alpha than the vertical face joining with the end in the front of the accepting rack 18a of the superiors more by door one side, than the vertical face joining with the end at the rear of the door accepting rack 19a of the superiors as immediate door accepting rack 19 more by inboard.
In addition, end face LED20a, b are disposed on the same substrate of the recess 83 interior settings that arrange at end face.Recess 83 forms by the support (not shown) of being fixed by PUR at the interior case of the inwall that forms refrigerating chamber 12.Substrate is being arranged on after support, and recess 83 is covered by the lid of the ester moulding by transparent or semitransparent.
Below a side in storehouse, be provided with key light sensor 21a and secondary optical sensor 21b as optical sensor 21.Use illuminance transducer as these optical sensors 21, the sensor that the peak wavelength that is generally maximum sensitivity is 500～600nm.In addition, the wavelength of peak sensitivity of optical sensor 21, can be also other wave band, can coordinate decision with the emission wavelength of light source etc.
Like this, by the first optical detection part being arranged on than comprising that the vertical face of the first illuminating part more leans on the inboard position of receiving room, illumination attenuation that can be based on the first optical detection part place, improve reliably the collecting article on accepting rack 18 in storehouse receiving state infer precision.
In addition, key light sensor 21a, be arranged on receiving room 40 above, be arranged in the present embodiment the top of orlop accepting rack 18b, be preferably arranged in the upper surface of receiving room 40 and a storehouse above of orlop accepting rack 18b between accepting rack 18.
Secondary optical sensor 21b is arranged on than the vertical face joining with the end in the front of the orlop accepting rack 18b as accepting rack 18 in immediate storehouse more by a side of door.Expect to be arranged on the left side wall of space-oriented γ, above-mentioned space γ than the vertical face that comprises end face LED20a, b more by a side, than the vertical face joining with the end at the rear of the 12b of frame portion more in the inner part.In addition, secondary optical sensor 21b is arranged on key light sensor 21a top.
The second optical detection part is arranged on the top of the first optical detection part, thus can be reliably revise the impact of the first optical detection part producing shadow by collecting article, can improve reliably the collecting article of the illumination attenuation based on the first optical detection part place receiving state infer precision.
In addition, by the second optical detection part that the light irradiating from the second light portion is detected is arranged on to the side that is provided with the first optical detection part, can revise the impact of the first optical detection part the shadow being produced by collecting article, can improve reliably the collecting article of the illumination attenuation based on the first optical detection part place receiving state infer precision.
And then, by the second optical detection part being arranged on than the vertical face that comprises the first illuminating part position more on the front, the shadow that can produce collecting article by door accepting rack 19 be revised the impact of the first optical detection part, can improve reliably the collecting article of the illumination attenuation based on the first optical detection part place receiving state infer precision.
The light irradiation of end face LED20a, b and side below LED20g, h is repeatedly in the reflection of receiving room wall and the reflection repeatedly being produced by collecting article, decay, and key light sensor 21a measures and arranges for the satisfied state of distribution of the brightness in receiving room.S operation control portion 1 is used this measured value to calculate, and infers the receiving state of collecting article.On the basis of this principle, by configuring secondary optical sensor 21b, can detect (details is narrated in the back) to receiving state well with configuration-independent ground, the precision of collecting article.
The detection of the object being undertaken by optical sensor 21, general as for example optical chopper (photo interrupter), utilize by interdicting the phenomenon that light intensity is decayed terrifically, detect the mode of the existence of an object digitally, or use multiple sensors to detect the mode of the existence of multiple objects.But such structure can only detect having or not of the collecting article in place limited in receiving room, can not grasp the receiving state of receiving room entirety.On the other hand, in the structure of present embodiment, use a small amount of light source and optical sensor 21, can grasp in analog the receiving state of the such space entirety of refrigerating chamber 12.
Using in the system of optical sensor 21 and light source, in the time that nearby (front) of optical sensor 21 or light source is contained thing obstruction, the level extreme of the light that can detect reduces, and the rate of change of light intensity reduces thereupon.Thus, in the detection of receiving state, need complicated processing.But, in the present embodiment, even if for example pile collecting article in refrigerating chamber 12, as shown in Figure 2 A, because the installation site of LED20g, h below end face LED20a, b, illuminating LED 20c～f, side exists the space alpha between accepting rack 18 in storehouse and door accepting rack 19, to be therefore contained the possibility that thing stops up low for light source.
Then, the blue led 22a as auxiliary light emission portion is described.Blue led 22a is arranged at the left side wall identical with the wall that disposes key light sensor 21a and secondary optical sensor 21b.Blue led 22a is arranged on the left side wall of space-oriented β, and above-mentioned space beta ratio more leans on door one side with the vertical face that the end in the front of orlop accepting rack 18b joins, than vertical the inside that comprises end face LED20a, b.
Blue led 22a is arranged in a storehouse above of the upper surface of receiving room 40 and orlop accepting rack 18b between accepting rack 18, and expectation is arranged on the top of key light sensor 21a, the below of secondary optical sensor 21b.
Then, the installation constitution of key light sensor 21a, secondary optical sensor 21b and blue led 22a is described.
Fig. 3 is the front elevation of the recess 84 of the configuration key light sensor 21a of the first embodiment of the present invention, secondary optical sensor 21b and blue led 22a, and Fig. 4 is the sectional view of 4-4 line in Fig. 3 of this recess 84.
In addition, in Fig. 3, for convenience of explanation, omit the diagram of covering 53, be only represented by dotted lines the profile of main part 53a.
Like this, by the first optical detection part is arranged in recess 84, do not receive the direct light from the first illuminating part as light source as the first optical detection part of optical sensor 21, therefore can improve the collecting article of the illumination attenuation based on the first optical detection part place receiving state infer precision.
In addition, by the first optical detection part and the second optical detection part are arranged on same substrate, can make the distance of the first optical detection part and the second optical detection part not be subject to the impact of assembled state and keep roughly certain.Thus, can revise the impact of the first optical detection part the shadow being produced by collecting article more reliably, can improve reliably the collecting article of the illumination attenuation based on the first optical detection part place receiving state infer precision.
At the interior case of inwall that forms refrigerating chamber 12, by the support unit 50 of being fixed by PUR, recess 84 is formed as to being injected into heat insulation material between outer container and interior case side-prominent.Support unit 50 is essentially rectangle (angle is fillet), is configured to long side direction parallel with the horizontal plane of refrigerating chamber 12.
Dispose blue led 22a in a side that disposes key light sensor 21a.In addition, in the bottom of substrate 51, the central upside of long side direction, dispose female connector 52a taking connector closure as mode from bottom to up.These electronic units are arranged on the circuit pattern of substrate 51 by solder.
The central shaft that is subject to optical range of key light sensor 21a and secondary optical sensor 21b and the optical axis of blue led 22a, install in the mode vertical with the plane of substrate 51 respectively.Thereby the central shaft that is subject to optical range of key light sensor 21a and secondary optical sensor 21b and the optical axis of blue led 22a, configure in the mode vertical with the sidewall of refrigerating chamber 12 respectively.
Like this, tilt with respect to the horizontal plane of receiving room by being arranged to the long side direction of substrate 51, can improve reliably the collecting article of the illumination attenuation based at the first optical detection part place receiving state infer precision, and can realize cost degradation and improve the reliability of optical sensor 21.
The male connector 52b with connection electric wire 52c is connected to the female connector 52a of substrate 51 from below.Connecting electric wire 52c leads in support unit 50 from heat insulation material via the connection electric wire 50a of hole portion of spatial portion of the below, front that is arranged at support unit 50.Thereby even just in case water immerses in support unit 50, or in the situation of the interior generation dewfall of support unit 50, water can not stockpile along connecting electric wire 52c at female connector 52a etc. yet, is therefore difficult to come in contact the faults such as bad.
The position corresponding with key light sensor 21a, secondary optical sensor 21b and blue led 22a respectively at main part 53a is provided with through hole.Blocking wall (not shown), secondary optical sensor blocking wall 54b, blue led blocking wall 55 for the key light sensor that projects to substrate 51 sides that around these through holes, to be respectively arranged with respect to substrate 51 be vertical barrel shape.Blue led forms highlyer than the height of key light sensor blocking wall 54a and secondary optical sensor blocking wall 54b with the height of blocking wall 55.
Like this, between the first optical detection part or the second optical detection part and auxiliary light emission portion, be provided with the blocking wall that covers light, can make thus the first optical detection part or the second optical detection part not receive the direct light from auxiliary light emission portion, therefore can improve reliably the collecting article based on accepting rack in the storehouse of the illumination attenuation at the first optical detection part place receiving state infer precision.
In addition, around the first optical detection part, the second optical detection part and auxiliary light emission portion, be provided with respectively the blocking wall that covers light, can prevent more reliably that thus the first optical detection part, the second optical detection part from receiving the direct light from auxiliary light emission portion.
And then, the height that is arranged on aspect ratio first optical detection part of blocking wall of the surrounding of auxiliary light emission portion or the blocking wall of the surrounding of the second optical detection part is high, can prevent more reliably that the first optical detection part, the second optical detection part from receiving the direct light from auxiliary light emission portion.
And, post translucent peucinous film 56 on the surface of the inside-of-refrigerator of lid 53 main part 53a.Thus, can be with low cost in the case of not making the illumination of the detection performance of key light sensor 21a and secondary optical sensor 21b, blue led 22a cover through hole reducing, can anti-sealing or dust etc. to the interior immersion of support unit 50.And then, become the main part 53a being difficult to via lid 53 and see substrate 51 etc., therefore design improves.
Get back to Fig. 2 A, in the Machine Room of rear area that is formed at the topmost in refrigerating chamber 12, be accommodated with compressor 30 and carry out the component parts of the kind of refrigeration cycle such as drier that moisture removes.
Fig. 5 is the control block diagram of the freezer 80 of the first embodiment of the present invention.
S operation control portion 1 with comprise above-mentioned key light sensor 21a and secondary optical sensor 21b optical sensor 21, comprise that storehouse intraoral illumination 20 and the blue led 22a of end face LED20a, b and side below LED20g, h are connected.
S operation control portion 1 is also connected with compressor 30, cooling fan 31 and air quantity damper 32 as cooling system.
Be provided with the cooling chamber that generates cold air at the back side of refrigerating chamber 15.In cooling chamber, dispose cooler and cooling fan 31, above-mentioned cooling fan 31 will be blown to refrigerating chamber 12, switching chamber 14, ice-making compartment 13, vegetable compartment 16 and refrigerating chamber 15 by the chilled cold air as the type of cooling of cooler.
And then, the air quantity damper 32 regulating from the air quantity of cooling fan 31 is arranged in wind path.In addition, for the frost or the ice that are attached to cooler and its periphery are defrosted, dispose pharoid, drain pan and drainpipe evaporating dish etc.
Refrigerating chamber 12 is set as 1 DEG C～5 DEG C for stored refrigerated conventionally using the temperature that do not freeze as lower limit, and the vegetable compartment 16 of foot is set as and equal or higher 2 DEG C～7 DEG C of refrigerating chamber 12.In addition, refrigerating chamber 15 is set as cryogenic temperature band, is conventionally set as-22 DEG C～-15 DEG C in order to carry out freezing preservation, but in order to improve freezing preservation state, for example, also can be set as the low temperature of-30 DEG C or-25 DEG C.
Ice-making compartment 13 uses the water of sending from the storage tank in refrigerating chamber 12, by the automatic ice maker ice making that is arranged on indoor top, in the ice container that is disposed at indoor bottom, stores.
Switching chamber 14, except being set as the refrigerated storage temperature band of 1 DEG C～5 DEG C, being set as the vegetables temperature band of 2 DEG C～7 DEG C, being conventionally set as the cryogenic temperature band of-22 DEG C～-15 DEG C, can also between cryogenic temperature band, switch to predefined temperature band taking to from refrigerated storage temperature.Switching chamber 14 is set up in parallel with ice-making compartment 13, is the receiving room with unconnected gate, in most cases has the door of pull-out type.
Receiving room 40 as with the equal temperature band of refrigerating chamber 12, be set as-1～1 DEG C as so-called shock chamber (chilled room), or be set as the temperature band of-4.5 DEG C～-1.5 DEG C as so-called refrigerating chamber (partial room).
In addition, in the present embodiment, using switching chamber 14 as the receiving room that can set refrigerated storage temperature band and cryogenic temperature band for, but also can respectively cold storage function be taken on by refrigerating chamber 12 and vegetable compartment 16, freezing function is taken on by refrigerating chamber 15, and using switching chamber 14 as only switch refrigeration and the temperature band of freezing centre particularization receiving room.In addition, along with specific temperature band, for example the demand of frozen food becomes many in recent years, also can be used as the receiving room that is fixed on cryogenic temperature band.
For freezer 80 as constituted above, below its action and effect are described.
In the present embodiment, detect receiving state with end face LED20a, b in storehouse interior lighting device 20 and below, side LED20g, h.In addition, in the present embodiment, use key light sensor 21a and secondary optical sensor 21b detection receiving state in optical sensor 21.
In addition, in the time that needs further improve the accuracy of detection of receiving state, the light source number that uses the uses such as illuminating LED 20c～f can be increased.In addition, also the optical sensor of use 21 can be increased.
Fig. 6 is the flow chart that represents the Control the content of the receiving state detection of the freezer 80 of the first embodiment of the present invention.
First, detecting action (master data obtains action) for the receiving state that utilizes end face LED20a, b, side below LED20g and key light sensor 21a to carry out describes.It is longer that refrigerating chamber 12 is generally short transverse, therefore mainly the example that detects receiving state according to the scheme that refrigerating chamber 12 is divided into up and down to two subregions described.
(S101 while the switching of refrigerating-chamber door 12a being detected by door open-close detection sensor 3, be), s operation control portion 1 is judged to be the possibility that the taking-up of collecting article is put into, from closing cold room door 12a after the 44 timing stipulated times of timer (S102, be), start the detection action of receiving state.
At this, the reason of timing stipulated time in step S102 is described.
The first, this is that transmitance changes, and thus the detection of receiving state is exerted an influence owing to having considered accepting rack 18 and dewfall minutely such as door accepting rack 19 grades in the storehouse that becomes low temperature.By the standby stipulated time, rear dewfall detects after eliminating again at the appointed time.
The second, be to light as illumination LED owing to having considered in the time that refrigerating-chamber door 12a opens, its heating causes luminous intensity to reduce, and thus the detection of receiving state is exerted an influence.Object is by the standby stipulated time, and the temperature rise of rear LED at the appointed time detects after eliminating again.
In addition, as the method for stable other of the luminous intensity that makes LED, can make LED also temporarily light after refrigerating-chamber door 12a closes, make it heating, at the appointed time after the temperature rise of LED saturated and reach constant after, start to detect.
Start receiving state and detect while action, first s operation control portion 1 makes the light source igniting (S103) at end face LED20a, the b of the end face wall configuration of the upper subregion as freezer 80.
Fig. 7 is the sectional view that passes through receiving state that end face LED20a, b carry out and detect action for the first embodiment of the present invention is described, Fig. 8 is the figure that passes through receiving state that end face LED20a, b carry out and detect characteristic that represents this embodiment.
For example as shown in Figure 7, be assumed to be and in storehouse, on accepting rack 18, be accommodated with the situation as the food of collecting article 23a.Below the light 24a(of end face LED20a output, represent in the accompanying drawings the composition of light with arrow.Dotted line represents that light intensity is in decay.) reflect, absorb and decay at collecting article 23a, as light 24b, c, spread to other directions.
The reflection that light 24b, c also locate at wall or other the food (not shown) of refrigerating chamber 12 repeatedly.In addition, light 24d also, in the collecting article 23b of door accepting rack 19 reflection, decay, spreads the reflection of also repeatedly locating at wall or other the food (not shown) of refrigerating chamber 12 as light 24e to other directions.After interreflection, the distribution of the brightness in refrigerating chamber 12 is saturated, stable like this.
In addition, the light irradiation of general LED have regulation irradiating angle carry out luminously, therefore in Fig. 7, smooth 24a indicated by the arrow, d are parts for the composition of the end face LED20a light of emitting.Below, be also same for the description of the light in accompanying drawing.
Downward, key light sensor 21a is towards horizontal direction for end face LED20a, b.That is, owing to not being relative configuration mutually, be therefore configured to the composition of nearly all light not directly into being incident upon key light sensor 21a, but via the reflection at wall or collecting article place.
Now pass through an example that receiving state that key light sensor 21a carries out detects characteristic as shown in Figure 8.Known as shown in Figure 8, when the storage amount of collecting article 23a, b increases, the illumination being detected by key light sensor 21a declines.But, only light in the situation of end face LED20a, b, between maximum and minimum of a value, there is error.Modification method for this error is narrated in the back.S operation control portion 1 is stored to memory 2(S104 using the illuminance information of mensuration as detecting data A).
In addition, in Fig. 8, the longitudinal axis of chart is " illumination ", if but adopting when thering is no collecting article 23a, b as the relative value of " relative illumination " or " the illumination attenuation rate " etc. of benchmark, the luminous intensity deviations that easily have as initial characteristic with LED etc. are corresponding.In addition, also can adopt there is no collecting article 23a, b time, be " the illumination attenuation " of benchmark.Below, the consideration mode relevant with " illumination " is also same.
Then, s operation control portion 1 make the side of the left side wall configuration below the side of the lower subregion as freezer 80 below LED20g light (S105).
Fig. 9 is the sectional view that passes through receiving state that side below LED20g carries out and detect action for the first embodiment of the present invention is described, Figure 10 is the figure that passes through receiving state that below, side LED20g carries out and detect characteristic that represents this embodiment.
Example as shown in Figure 9, is assumed to be and in storehouse, on accepting rack 18, is accommodated with the situation as the food of collecting article 23c.Now, the following composition that represents light in Fig. 9 with arrow of light 24f(that below LED20g penetrates from the side.Dotted line represents that luminous intensity is in decay.) decay in collecting article 23c reflection, as light 24g, spread to other directions.The reflection that light 24g also locates at wall or other the food (not shown) of refrigerating chamber 12 repeatedly.
In addition, light 24h, in collecting article 23d reflection, decay, spreads the reflection of also repeatedly locating at wall or other the food (not shown) of refrigerating chamber 12 as light 24i, j to other directions.After interreflection, the distribution of the brightness in refrigerating chamber 12 is saturated, stable like this.
When below, side LED20g is lighted, by key light sensor, 21a detects.Like this, owing to detecting by mutual not relative combination, be therefore configured to the composition of nearly all light not directly into being incident upon key light sensor 21a, but via the reflection at wall or collecting article., can detect the catoptrical indirectly light irradiation at the collecting article place being included in receiving room.
Now pass through an example that receiving state that key light sensor 21a carries out detects characteristic as shown in figure 10.Known as shown in figure 10, along with the increase of the storage amount of collecting article 23c, d, illumination reduces.But, when only below, side LED20g lights, between maximum and minimum of a value, there is error, narrate in the back for the modification method of this error.S operation control portion 1 is stored to memory 2(S106 using the illuminance information being measured to as detecting data B).
As shown in Fig. 8 and Figure 10, when the relatively upper subregion of collecting article 23a～d, large (Fig. 8) of illumination decay when end face LED20a, b light, illumination decay less (Figure 10) when below, side LED20g, h light.
On the other hand, when the relatively lower subregion of collecting article 23a～d, illumination decay less (Fig. 8) when end face LED20a, b light, large (Figure 10) of illumination decay when below, side LED20g, h light.
That is, in the time being positioned at end face LED20a, the b of upper subregion and lighting, higher for the sensitivity of the collecting article 23a～c of upper subregion, in the time being positioned at below, side LED20g, the h of lower subregion and lighting, higher for the sensitivity of the collecting article 23d of lower subregion.
According to more than, the measurement result combination that the side below LED20g of end face LED20a, the b of upper subregion and lower subregion is lighted separately successively and calculate receiving state and detect characteristic.Particularly, for example will detect the characteristic of data A(Fig. 8) and detect the characteristic of data B(Figure 10) average and value calculate (S107) as detection data C.
Figure 11 represents that the receiving state by the detection data C obtaining after average to detection data A and detection data B of the first embodiment of the present invention detects the figure of characteristic.
By Figure 11 and Fig. 8 and Figure 10, relatively time, known error is almost eliminated completely, can with the skew of the configuration up and down of collecting article 23a～d independently, precision detects receiving state well.
In addition, for being offset to the left and right or to the configuration of depth, front of collecting article 23a～d, in the consideration mode same with above-mentioned consideration mode, refrigerating chamber 12 is divided into two subregions (in left and right or depth, front direction be divided into two subregions), LED or optical sensor 21 are set respectively.
Then, to existing the modification method of the error occurring barrier to describe at the incident path of the light to key light sensor 21a irradiation.
Figure 12 is near the sectional view that has the situation of barrier optical sensor 21 for the first embodiment of the present invention is described, Figure 13 is for the figure due near the example of the error that exists barrier to occur this optical sensor 21 is described, Figure 14 is illustrated near the situation that has barrier this optical sensor 21 and does not exist receiving state in the situation of barrier to detect the figure of characteristic.
In Figure 12, because collecting article 23e is near key light sensor 21a, therefore may become the barrier that the incident path of light is narrowed.The example that the receiving state that key light sensor 21a when there is barrier carries out like this detects characteristic (detecting data C) as shown in figure 13.
As shown in figure 13, the maximum (b) when the maximum (a) when clear decays to barrier, produces error according to having or not of barrier.Equally, the minimum of a value (d) when the minimum of a value (c) when clear decays to barrier, produces error.In order to revise these errors, use the side below LED20h that is arranged at right side wall and the secondary optical sensor 21b that is arranged at left side wall, detect the receiving state (barrier correcting process) of collecting article 23e.
Particularly, below, side LED20h is lighted (S108) by s operation control portion 1, obtains detection data D the record (S109) of secondary optical sensor 21b.If collecting article 23e is the size that makes the level that the incident path of light irradiating to key light sensor 21a narrows, cover the path of the light of side below LED20h and secondary optical sensor 21b link, therefore the detection data D of secondary optical sensor 21b reduces (Figure 14) terrifically.
Utilize this phenomenon, data D and threshold value E(S110 relatively detect in s operation control portion 1).S operation control portion 1 is that (S110, no) differentiates for there being barrier below threshold value E in the situation that detecting data D.Now, s operation control portion 1 according to Figure 13 have barrier time differentiation characteristic G differentiate receiving state (S111).On the other hand, s operation control portion 1 (S110 is) in the situation that detecting data D and exceeding threshold value E is differentiated for clear, and the differentiation characteristic F during according to the clear of Figure 13 differentiates receiving state (S112).
Then, for existing the collecting article 23f(that reflectivity is high to be also denoted as reverberation at the periphery of key light sensor 21a) the modification method (reverberation correcting process) of the error that occurs describe.
Generally speaking the collecting article that, reflectivity is high is for white or connect subalbous object.In addition, as canister, the diffusivity of light is lower, has the object of light harvesting also can become reverberation.
Figure 15 is near the sectional view of the situation of reverberation that is accommodated with optical sensor 21 for the first embodiment of the present invention is described, Figure 16 is the figure of the example near the error generation in the situation that being accommodated with reverberation this optical sensor 21 is described.
As shown in figure 15, in the case of being placed with in storehouse the collecting article 23f that reflectivity is high, when the reflectivity of collecting article 23f is high, also exist the decay of light to tail off, and light indiffusion and the situation of light harvesting, therefore there is the tendency that the illumination of the periphery of collecting article 23f uprises.Thereupon, near the illumination of the periphery of key light sensor 21a also improves.
As shown in the example that the receiving state being undertaken by key light sensor 21a of Figure 16 detects characteristic (detecting data C), because the difference of the reflectivity of collecting article 23f produces error.For example, the characteristic (a) when thering is no reverberation is relative, in the characteristic (b) in the time having the slightly high collecting article of reflectivity, produces error J, produces in addition error H in the characteristic in the time having the collecting article of high reflectance (c).
For this error is revised, detect the reflections affect of collecting article 23f by blue led 22a and key light sensor 21a.Generally speaking, what reflectivity was high is white object, therefore needs to identify white object.
Figure 17 A～Figure 17 C is the figure that represents the relation of light wavelength that the difference according to the color of object of the first embodiment of the present invention produces and reflectivity.
For example, Figure 17 A is the figure of the relation of light wavelength while representing taking red object as object and reflectivity, has the light of the peak value wave band of the blue led 22a of peak value at 400～500nm, and the reflectivity on red object is lower.
In addition, Figure 17 B is the figure of the relation of light wavelength while representing taking blue object as object and reflectivity, has the light of the peak value wave band of the blue led 22a of peak value at 400～500nm, and the reflectivity on blue object is also reduced to below 50%.
On the other hand, Figure 17 C is the figure of the relation of light wavelength while representing taking white object as object and reflectivity, have the light of the peak value wave band of the blue led 22a of peak value at 400～500nm, because white object has the characteristic that full wave light is reflected strongly, therefore reflectivity is high.
That is, the light of the peak value wave band of blue led 22a, the object beyond white is difficult to reflection, is therefore suitable for distinguishing white object.
For example, do not use blueness, but supposition is used the light of red wavelength.Now, as shown in Figure 17 A, have the light of the peak value wave band of the red LED of peak value before and after the 650nm, the reflectivity on red object is high, with the reflectivity on white object be as shown in Figure 17 C equal.
That is, red light is also with certain level reflection on the low homochromy object of reflectivity, and therefore difference white is difficult with red object, and in order to carry out the differentiation of reverberation, blue (light) is easier.
In addition, reflectivity is affected by the color of object also, if therefore for example use the chromaticity transducer etc. of the wavelength that utilizes RGB, further precision is differentiated well.
In addition, the low object of the diffusivity of light as canister, particularly, owing to independently light being assembled with light wavelength, therefore can utilize this characteristic to detect.
Figure 18 be represent the first embodiment of the present invention near optical sensor 21, there is reverberation in the situation that error effect and the figure of the relation of the illumination of the key light sensor 21a of blue led 22a while lighting.
As shown in figure 18, between the output of the key light sensor 21a when error causing and blue led 22a light, there is association at reverberation, therefore the amount of this error is revised to (reverberation correcting process).
Get back to Fig. 6, s operation control portion 1 makes blue led 22a light (S113), and the value detecting by key light sensor 21a is stored to memory 2(S114 as detecting data K).
Then, the threshold value L that s operation control portion 1 relatively arranges as shown in Figure 18 and detect data K(S115), if to detect data K be that threshold value L following (S115, no) differentiates is that reflections affect is small, do not revise (S116).
On the other hand, s operation control portion 1, in the time that detection data K is larger than threshold value L (S115 is), is differentiated for there being reflections affect, and the error based on reverberation 23f is differentiated characteristic M, and the value of estimation error J, error H, revises (S117).
As previously discussed, according to Fig. 6, carried out master data by s operation control portion 1 and obtained processing, barrier correcting process, reverberation correcting process storage amount detection characteristic (after revising) afterwards as shown in figure 19.
Figure 19 represents that the revised receiving state of the first embodiment of the present invention detects the figure of characteristic.
As shown in figure 19, the error of revised maximum (a) and revised minimum of a value (b) is minimum, can precision well receiving state be carried out to simulation and infers (S118).
In addition, in the inferring of receiving state, adopt threshold value P, Q, R, S are set, in 1～5 the flat mode of 5 grade discriminations storage water gaging.Particularly, revised illumination, for threshold value P differentiates when above for grade 1, differentiates during for threshold value P～Q for grade 2, differentiates for grade 3 during for threshold value Q～R, differentiates for class 4, for threshold value S differentiates for class 5 when following during for threshold value R～S.
In addition, for example, in the time judging the increase of storage amount, when the storage amount before variation is grade 3, differentiate for difference that only illumination change is " threshold value Q-threshold value R " is transferred to class 4 when above, in situation in addition, be left grade 3.By such processing, even because external noise etc. produces the detection error of a few percent, also can prevent the error detection of the variation of receiving state.When judging the minimizing of storage amount, also carry out in same consideration mode.
In addition, the interval of threshold value P～T of Figure 19, wide, narrow when many in addition in the time that storage amount is few.This be consider storage amount detect characteristic (revise after) in the time that storage amount is few gradient larger, measure many times gradients in storage less, the interval of storage grade 1～5 becomes even.
In addition, also can not carry out above-mentioned such grade classification, storage amount is differentiated in simulation capablely completely.
In addition, the modification method of the error occurring as the reverberation of the periphery because of key light sensor 21a, except by blue led 22a and key light sensor 21a, also can pass through blue led 22a and secondary optical sensor 21b, and the reflections affect of reverberation is judged.
S operation control portion 1, infers after receiving state at step S118, according to the differentiation result of variation or the reception position etc. of storage amount, storage amount, controls the cooling systems such as compressor 30, cooling fan 31 and air quantity damper 32, carries out optimal cooling running.
In addition, s operation control portion 1, can, during LED is lighted to detect receiving state successively, make the lamp flicker of display part 17 etc., notifies user.And then s operation control portion 1 makes testing result be presented at display part 17 detecting after receiving state, notifies user.
As mentioned above, in the present embodiment, freezer 80 has end face LED20a, the b of the inside that is arranged on refrigerating chamber 12 and below, side LED20g, h, and penetrates in contrast the key light sensor 21a of the optical sensor that light detects.And, based on the illumination attenuation at key light sensor 21a place, the receiving state of collecting article is inferred.Thus, can be corresponding with the deviation of the initial characteristic of the LED as light source etc., improve precision and infer the overall receiving state in refrigerating chamber 12.
In addition, the light irradiation of light source interreflection and being irradiated in storehouse everywhere in receiving room, is incident to optical sensor 21, therefore can be with the less easy structure detection receiving state of component count.
In addition, also can, at the wall relative with the wall that is provided with key light sensor 21a, configure other key light sensor, carry out luminance detection.Thus, can further improve the precision of inferring of receiving state.
In addition, the illumination attenuation of being measured by key light sensor 21a, is the illumination under the receiving state relative with there is not illumination under the state of collecting article 23a～f in receiving room, the receiving state of inferring collecting article 23a～f based on this illumination.Thus, not only as the deviation (inhomogeneous) of the LED of light source, can also tackle the individual deviation (inhomogeneous) in the receiving room of freezer 80, can further improve collecting article 23a～f receiving state infer precision.
In addition, in the illumination attenuation of key light sensor 21a, to comprising that the catoptrical indirectly light irradiation on the collecting article 23a～f in receiving room detects, and can easily infer with high accuracy the receiving state of collecting article 23a～f as illumination attenuation.
In addition, by key light sensor 21a being disposed in the recess 84 arranging in the side of receiving room, key light sensor 21a does not receive the direct light from end face LED20a, b as light source, therefore only detect the catoptrical indirectly light irradiation comprising on collecting article 23a～f, can easily infer with high accuracy the receiving state of collecting article 23a～f as illumination attenuation.
In addition, key light sensor 21a is arranged on than the center of the depth direction of refrigerating chamber 12 more by refrigerating-chamber door 12a mono-side, therefore can detect reliably the receiving state that is easily subject to being opened and closed by door near the collecting article 23a～f such as the food entrance of the impact that the outer gas that causes flows into.
In addition, key light sensor 21a be arranged on than with storehouse as nearest in the vertical face that joins of the end in front of orlop accepting rack 18b of accepting rack more by a side of door.The upper and lower space of the front end of refrigerating-chamber door 12a and orlop accepting rack 18b, be contained the possibility that thing 23a～f blocks lower, can guarantee the stable light path from light source, and the illumination attenuation that causes of the existence of collecting article 23a～f based on by accepting rack in storehouse 18 receiving state of can precision inferring well collecting article 23a～f.
And key light sensor 21a is disposed at than the vertical face that comprises end face LED20a, b more by an inner side.Therefore, can detect the collecting article 23a～f on accepting rack in storehouse 18 with higher precision.
In addition, key light sensor 21a is arranged at the top of upper surface or the orlop accepting rack 18b of receiving room 40.Thus, the receiver of receiving room 40 is being extracted out, or also can not caused obstruction when the storage tank 41 of below that is arranged at orlop accepting rack 18b is extracted out.
And key light sensor 21a is arranged at the below of accepting rack 18 in a storehouse above of orlop accepting rack 18b.Thus, in the time taking out in storehouse accepting rack 18, can not cause obstruction yet.In addition, key light sensor 21a, in not to storehouse, the taking-up of accepting rack 18, receiver, storage tank 41 causes in the scope of obstacle, be disposed at from end face LED20a, b downwards away from position.Therefore, can detect the collecting article 23a～f on accepting rack 18 in all storehouses between key light sensor 21a and end face LED20a, b.
In addition, as the correcting mode by the illumination attenuation of the combine measured of end face LED20a, b and key light sensor 21a by receiving state correction, use by being arranged on and the side below LED20g of wall of key light sensor 21a same side and the illumination attenuation of the combine measured of key light sensor 21a.Thus, the deviation key element being caused by the biasing of the receiving state of the biasing, particularly above-below direction of the collecting article 23a～f in receiving room can be absorbed, the precision of inferring of storage amount taking the receiving state of collecting article 23a～f as cause can be improved.
In addition, in the present embodiment, as the correcting device of the illumination attenuation by receiving state correction key light sensor 21a place, there is the receiving state as near the collecting article 23a～f to key light sensor 21a, the secondary optical sensor 21b of the device that particularly receiving state of the collecting article 23e of orlop door accepting rack 19b is revised.Thus, can improve reliably the precision of inferring of the storage amount that causes with respect to the shadow being produced by collecting article 23e of key light sensor 21a.
In addition,, in the impact that the shadow being produced by collecting article in correction produces key light sensor 21a, preferred secondary optical sensor 21b is disposed at the side with key light sensor 21a same side, is configured in the 120mm of surrounding of key light sensor 21a.
In addition, by secondary optical sensor 21b being disposed in the recess 84 arranging in the side of receiving room, secondary optical sensor 21b does not receive the direct light from below, the side LED20g as light source, therefore only detect the catoptrical indirectly light irradiation comprising on collecting article 23a～f, can precision revise well the impact of collecting article 23a～f.
In addition, secondary optical sensor 21b is configured in the top of key light sensor 21a.Therefore, secondary optical sensor 21b below end face LED20a, b, side between LED20g and key light sensor 21a, the impact of can precision revising well shadow and throwing the collecting article 23a～f on key light sensor 21a.
In addition, on the possibility that is accommodated in orlop door accepting rack 19b high, impact that the collecting article 23d such as the bottle of height about 190～230mm produces revises, preferred secondary optical sensor 21b is disposed at apart from the height of bottom surface 130mm～170mm of orlop door accepting rack 19b.
In addition, secondary optical sensor 21b be configured in than with storehouse as nearest in the vertical face that joins of the end in front of orlop accepting rack 18b of accepting rack more by a side of door.Therefore, can precision revise well the impact of the collecting article 23a～f on an accepting rack 19.And then, due to secondary optical sensor 21b be arranged on than the vertical face that comprises end face LED20a, b more on the front, than the vertical face joining with the end at the rear of the 12b of frame portion more by inboard region γ, therefore can precision revise well the impact of the collecting article 23d on orlop door accepting rack 19b.
In addition, in the present embodiment, as the correcting device of the illumination attenuation by receiving state correction key light sensor 21a place, have the blue led 22a of auxiliary light emission portion, it is end face LED20a, b, the different colour light emitting of side below LED20g with the device of revising from the reflectivity of the collecting article 23a～f in receiving room.Thus, can improve reliably the precision of inferring of storage amount taking the reflectivity of collecting article 23a～f as cause.Particularly, by detecting the reverberation at collecting article 23a～f from the blue light of the blue led 22a as auxiliary light emission portion by key light sensor 21a, can detect reliably the existence of collecting article 23a～f that reflectivity that the illumination of key light sensor 21a periphery is affected is high, can improve reliably key light sensor 21a storage amount infer precision.
Like this, by the auxiliary light emission portion with the colour light emitting different from the first illuminating part is set, can improve reliably the precision of inferring with the storage amount of the reflectivity cause of collecting article 23a～f, can improve the collecting article 23a～f of the illumination attenuation at the first optical detection part place based on as optical sensor 21 receiving state infer precision.
On the reflections affect of the collecting article 23a～f of the illumination impact on giving key light sensor 21a periphery is judged, preferably blue led 22a is configured in the 120mm of surrounding with the key light sensor 21a of the side of key light sensor 21a same side.
In addition, by blue led 22a being disposed in the recess 84 arranging in the side of receiving room, key light sensor 21a does not receive the direct light from the blue led 22a as light source.Thus, key light sensor 21a can only detect the catoptrical indirectly light irradiation comprising on collecting article 23a～f, can judge reliably the reflections affect of collecting article 23a～f that the illumination of key light sensor 21a periphery is impacted.
In addition, by making the center position of optical axis of blue led 22a with respect to the lateral vertical of receiving room, key light sensor 21a does not receive the direct light from the blue led 22a as light source.Thus, key light sensor 21a can only detect the catoptrical indirectly light irradiation comprising on collecting article 23a～f, can judge reliably the reflections affect of collecting article 23a～f that the illumination of key light sensor 21a periphery is impacted.
In addition, the center position that is configured to the optical axis of blue led 22a does not intersect with the central shaft that is subject to optical range of the optical detection part of key light sensor 21a in receiving room.Thus, key light sensor 21a does not receive the direct light from the blue led 22a as light source.Thus, key light sensor 21a can only detect the catoptrical indirectly light irradiation comprising on collecting article 23a～f, can judge reliably the reflections affect of collecting article 23a～f that the illumination of key light sensor 21a periphery is impacted.
In addition, blue led 22a is arranged in a storehouse above of orlop accepting rack 18b and orlop accepting rack 18b between accepting rack 18.Thus, can judge reliably the reflections affect of the collecting article 23d on the orlop accepting rack 18b that the illumination of key light sensor 21a periphery is impacted.And blue led 22a is arranged on the top of key light sensor 21a, even if be therefore laminated with collecting article 23a～f that multiple reflectivity are high, also can judge reliably their reflections affect on orlop accepting rack 18b.
In addition, blue led 22a is disposed at than comprising that the vertical face of end face LED20a, b more leans on the position at rear.Therefore, can precision judge well the reflections affect of the collecting article 23a～f on accepting rack 18 in the storehouse that possibility that the illumination of key light sensor 21a periphery is impacted is higher.
And blue led 22a is configured in than the vertical face joining with the end in the front of orlop accepting rack 18b more by a side of door.Therefore, can judge accurately the reflections affect of the collecting article 23a～f of the front side on accepting rack 18 in the storehouse that the possibility that among the collecting article 23a～f on accepting rack 18, the illumination of key light sensor 21a periphery impacted in storehouse is higher.
In addition, key light sensor 21a and secondary optical sensor 21b are configured in end face LED20a, the b and below, the side LED20g position more on the lower that are compared to light source.Thus, can reduce the impact of the dewfall that the inflow of the outer gas of following a switching of optical sensor 21 causes, the receiving state of therefore can the illumination attenuation based on optical sensor 21 places inferring accurately collecting article 23a～f.
In addition, in the light source using during receiving state detects, below, side LED20g is also used as to storehouse intraoral illumination 20.Therefore, new light source can be set, with easy structure detection receiving state.
In addition, in the present embodiment, key light sensor 21a and secondary optical sensor 21b are arranged on same substrate 51.Thus, the distance of key light sensor 21a and secondary optical sensor 21b can independently keep constant with assembled state, therefore can carry out accurately the correction of the receiving state of the collecting article 23a～f realizing by secondary optical sensor 21b.
In addition, key light sensor 21a and blue led 22a are arranged on same substrate 51.Thus, the distance of key light sensor 21a and blue led 22a can independently keep constant with assembled state, the judgement of the reflections affect to the high collecting article 23a～f of reflectivity that therefore can carry out accurately realizing by blue led 22a.
In addition, among key light sensor 21a, secondary optical sensor 21b and blue led 22a at least two or be all arranged on same substrate 51.Thus, can optical sensor 21 and auxiliary light emission portion be set with low cost, and can determine reliably the position of all parts.Thus, can improve the precision that the receiving state to collecting article 23a～f of the illumination attenuation based on key light sensor 21a place is revised.In addition, in the time of assembling, can easily carry out the position alignment of the through hole of key light sensor 21a, secondary optical sensor 21b and blue led 22a and lid 53.And blue led 22a is arranged between key light sensor 21a and secondary optical sensor 21b, therefore by optical sensor 21 is configured in to two ends, can easily on same substrate 51, all parts be installed.
In addition, in the present embodiment, be provided with blocking wall at key light sensor 21a, secondary optical sensor 21b and blue led 22a around separately.The light that thus, can prevent reliably blue led 22a in support unit 50 directly into being incident upon key light sensor 21a, secondary optical sensor 21b.In addition, can carry out more easily when mounted the position alignment of the through hole of key light sensor 21a, secondary optical sensor 21b and blue led 22a and lid 53.
In addition, around any one in key light sensor 21a and blue led 22a, be provided with blocking when wall, the light that can prevent blue led 22a in support unit 50 directly into being incident upon key light sensor 21a.
In addition, around any one in secondary optical sensor 21b and blue led 22a, be provided with blocking when wall, the light that can prevent blue led 22a in support unit 50 directly into being incident upon secondary optical sensor 21b.
And blue led is formed as higher than the height of key light sensor blocking wall 54a or secondary optical sensor blocking wall 54b with the height of blocking wall 55, therefore can prevent reliably that the light of blue led 22a from leaking to support unit 50.。
And blocking wall is the tubular vertical with respect to substrate 51.Thus, can the optical range that be subject to of optical sensor 21 be concentrated by containment wall, or can make the range of scatter of the light of auxiliary light emission portion concentrate.Thus, the luminous sensitivity that is subject to of optical sensor 21 can be improved, the collecting article 23a～f of specific scope can be detected reliably.And then, can dwindle and be arranged on the through hole that covers 53, improve thus design.
In addition, in the present embodiment, substrate 51 arranges obliquely with respect to the horizontal plane of receiving room.Thus, can dwindle the area of substrate 51, can realize the cost degradation that uses the minimizing of material to bring, and the in the situation that of substrate 51 dewfall, also can make moisture move to the below, lower end of substrate 51, remove as soon as possible moisture.Thus, can not become the reason of the faults such as defective insulation.
(the second embodiment)
Then, describe for the second embodiment of the present invention.
Figure 20 is the major part sectional view of observing from the side the blocking wall of the freezer 80 of the second embodiment of the present invention.
In the present embodiment, only the point different from the first embodiment described, for same structure, action and effect, the description thereof will be omitted.
As shown in figure 20, in embodiments of the present invention, for the key light sensor arranging around the key light sensor 21a of main part 53a, secondary optical sensor 21b, blue led 22a through hole separately, blocking wall (not shown), secondary optical sensor are with interdicting wall 64b, blue led blocking wall 65, for go to be the truncated cone shape of taper expansion from substrate 51 to lid 53 thereupon.Therefore, cover 53 even if arrange, also can the optical range that be subject to of optical sensor 21 not concentrated because covering 53, or the range of scatter of the light of auxiliary light emission portion is concentrated, therefore can detect large-scale collecting article.
Industrial utilizability
As mentioned above, according to above-mentioned freezer 80, can improve the collecting article of the illumination attenuation based on optical sensor place receiving state infer precision.By carrying out the control corresponding with receiving state, can improve fresh-keeping property, prevent that surplus is cooling, can suppress thus power consumption.Thus, can with freezer, storage amount measuring ability be set in home-use or business, use its result, in the control of the operation modes such as switching province electric operation etc., can utilize, be useful.
Symbol description
1 s operation control portion
2 memories
3 open-close detection sensor
11 freezer main bodys
12 refrigerating chambers
12a refrigerating-chamber door
12b frame portion
13 ice-making compartments
14 switching chambers
15 refrigerating chambers
16 vegetable compartment
17 display parts
Accepting rack in 18 storehouses
18a the superiors accepting rack
18b orlop accepting rack
19 accepting racks
19a the superiors door accepting rack
19b orlop door accepting rack
20 storehouse intraoral illuminations
20a, 20b end face LED
20c～f illuminating LED
20g, below, 20h side LED
21 optical sensors
21a key light sensor
The secondary optical sensor of 21b
21d～21q optical sensor
22a blue led
23a～h collecting article
24a～j light
30 compressors
31 cooling fans
32 air quantity dampers
40 receiving rooms
41 storage tanks
44 timers
50 support units
50a connects electric wire hole portion
51 substrates
52a female connector
The male connector of 52b
52c connects electric wire
53 lids
53a main part
53b cushion part
53c claw
54b, 64b be blocking wall for secondary optical sensor
55,65 blue leds with blocking walls,
56 films
80 freezers
81 little article box
82 egg accommodating containers
83,84 recesses
Claims (7)
1. a freezer, is characterized in that, comprising:
There is the receiving room of peristome above;
Be arranged on the first illuminating part of the end face of described receiving room;
The first optical detection part that the light irradiating from described the first illuminating part is detected; With
Be arranged on the recess of the side of described receiving room,
Described the first optical detection part is arranged in described recess.
2. freezer as claimed in claim 1, is characterized in that:
Described the first optical detection part is arranged on than comprising that the vertical face of described the first illuminating part more leans on the inboard position of described receiving room.
3. freezer as claimed in claim 1, is characterized in that:
Also comprise:
Be arranged on the second illuminating part of the described side of described receiving room; With
The second optical detection part that the light irradiating from described the second illuminating part is detected,
Described the second optical detection part is arranged at the described side that is provided with described the first optical detection part.
4. freezer as claimed in claim 3, is characterized in that:
Described the second optical detection part is arranged on the top of described the first optical detection part.
5. freezer as claimed in claim 3, is characterized in that:
Described the second optical detection part is arranged on than the vertical face that comprises described the first illuminating part position more on the front.
6. freezer as claimed in claim 3, is characterized in that:
Described the first optical detection part and described the second optical detection part are arranged on same substrate.
7. freezer as claimed in claim 6, is characterized in that:
Described substrate is arranged to its long side direction and is tilted with respect to the horizontal plane of described receiving room.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-226437 | 2011-10-14 | ||
| JP2011226435A JP5970653B2 (en) | 2011-10-14 | 2011-10-14 | refrigerator |
| JP2011-226435 | 2011-10-14 | ||
| JP2011-226436 | 2011-10-14 | ||
| JP2011226436A JP5870248B2 (en) | 2011-10-14 | 2011-10-14 | refrigerator |
| JP2011226437A JP5870249B2 (en) | 2011-10-14 | 2011-10-14 | refrigerator |
| PCT/JP2012/006507 WO2013054518A1 (en) | 2011-10-14 | 2012-10-11 | Refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103874899A true CN103874899A (en) | 2014-06-18 |
| CN103874899B CN103874899B (en) | 2016-02-03 |
Family
ID=48081586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280050407.4A Active CN103874899B (en) | 2011-10-14 | 2012-10-11 | Freezer |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2767786B1 (en) |
| CN (1) | CN103874899B (en) |
| WO (1) | WO2013054518A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807283A (en) * | 2015-04-30 | 2015-07-29 | 青岛海尔股份有限公司 | Method and device for detecting capacity available of refrigerator |
| CN104807284A (en) * | 2015-04-30 | 2015-07-29 | 青岛海尔股份有限公司 | Refrigerator |
| CN104897231A (en) * | 2015-04-30 | 2015-09-09 | 青岛海尔股份有限公司 | Refrigerator use volume detection method and device |
| CN105737932A (en) * | 2014-10-24 | 2016-07-06 | 捷腾光电股份有限公司 | Method for detecting internal volume of storage space |
| CN106288591A (en) * | 2016-11-08 | 2017-01-04 | 朱恺 | A kind of refrigerator with food materials management function and food management method |
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| WO2016107701A1 (en) * | 2014-12-31 | 2016-07-07 | Arcelik Anonim Sirketi | A cooling device |
| CN104567233A (en) * | 2015-01-28 | 2015-04-29 | 苏州路之遥科技股份有限公司 | Refrigerator moisture-preservation and freshness-preservation sprayer |
| CN112503822A (en) * | 2020-12-02 | 2021-03-16 | 上海海洋大学 | Intelligent detection refrigerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105737932A (en) * | 2014-10-24 | 2016-07-06 | 捷腾光电股份有限公司 | Method for detecting internal volume of storage space |
| CN104807283A (en) * | 2015-04-30 | 2015-07-29 | 青岛海尔股份有限公司 | Method and device for detecting capacity available of refrigerator |
| CN104807284A (en) * | 2015-04-30 | 2015-07-29 | 青岛海尔股份有限公司 | Refrigerator |
| CN104897231A (en) * | 2015-04-30 | 2015-09-09 | 青岛海尔股份有限公司 | Refrigerator use volume detection method and device |
| CN104807283B (en) * | 2015-04-30 | 2017-12-29 | 青岛海尔股份有限公司 | Refrigerator uses volume measurement method and apparatus |
| CN104807284B (en) * | 2015-04-30 | 2018-02-02 | 青岛海尔股份有限公司 | Refrigerator |
| CN106288591A (en) * | 2016-11-08 | 2017-01-04 | 朱恺 | A kind of refrigerator with food materials management function and food management method |
| CN106288591B (en) * | 2016-11-08 | 2019-07-05 | 朱恺 | A kind of refrigerator and food management method with food materials management function |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2767786A1 (en) | 2014-08-20 |
| CN103874899B (en) | 2016-02-03 |
| EP2767786A4 (en) | 2015-07-22 |
| EP2767786B1 (en) | 2018-12-05 |
| WO2013054518A1 (en) | 2013-04-18 |
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