CN102667378A - Refrigerator - Google Patents
Refrigerator Download PDFInfo
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- CN102667378A CN102667378A CN2010800581921A CN201080058192A CN102667378A CN 102667378 A CN102667378 A CN 102667378A CN 2010800581921 A CN2010800581921 A CN 2010800581921A CN 201080058192 A CN201080058192 A CN 201080058192A CN 102667378 A CN102667378 A CN 102667378A
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- Prior art keywords
- lighting device
- during
- freezer
- lighting
- 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
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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
- F25D2700/02—Sensors detecting door opening
Abstract
In order to reduce the burden imposed on the sense of sight of a user and suppress an increase in the power consumption of the whole refrigerator, disclosed is a refrigerator (100) provided with a lighting device (20) for illuminating the interior of a refrigerating room (13) using a light-emitting element (2) as a light source, said refrigerator being provided with a door opening/closing detection unit (24) which detects the open state and the closed state of a refrigerating room door (25), and a control device (26) which, when the door opening/closing detection unit (24) detects the open state of the refrigerating room door (25), causes the lighting device (20) to repeatedly illuminate and go out in such a manner that the period during which the lighting device (20) illuminates becomes longer with the passage of time.
Description
Technical field
The present invention relates to be provided with in the case freezer of lighting device.
Background technology
In recent years,, replace in the past incandescent lamp and bulb as the lighting device that is arranged in the freezer, low from heat generation, as not radiate infrared wavelength light, and can be with reasons such as low-voltage drive, motion has the freezer that uses semiconductor light-emitting elements.
Freezer as being used as lighting device as the light emitting diode of conventional semiconductor light-emitting component exists a plurality of light emitting diodes are configured to square shape and are arranged at the case inner top surface shine the freezer (for example, with reference to patent documentation 1) in the case.
In this existing freezer, at first, when the freezer door is closed, do not carry out energising to light emitting diode, do not shine in the case.In addition, when the door of freezer is opened, be judged as door opening state, through along directional current, send white light and shine in the case at light emitting diode by electronic switch such as mechanical switch and Hall IC.
The look-ahead technique document
Patent documentation
Patent documentation 1: TOHKEMY 2001-82869 communique
Summary of the invention
But, in above-mentioned existing freezer, when the freezer door opens and closes, all carry out lighting, extinguishing of lighting device repeatedly.Particularly under the situation of light emitting diode, have directive property, the collecting article reverberation in the freezer and the user can feel twinkling, in addition, when the direction of illumination of light emitting diode during towards user's side, light is prone to get into eyes.Particularly, when under the state that the light in rooms such as night disappears, opening the freezer door,, be prone to be absorbed in dazzle be difficult to see the situation of the collecting article in the freezer on the contrary when illuminating light emitting diode is disposable when lighting.
Therefore, become following state: the user does not take out the collecting article that will get definitely, in addition, does not confirm reception position, just the freezer door has been processed too opening-wide state.Thus, although energy-conservation light emitting diode is used as illumination, but still have following problem: the heat from the outside in freezer is invaded and is increased, and causes cooling effectiveness to descend, the consumes electric power increase.
The present invention develops for solving above-mentioned existing problem; Its purpose is; A kind of freezer with the lighting device in the irradiation storeroom is provided; It can alleviate the burden to user's vision, and it is long to reduce door opening-wide state twinkling and that reflection of light causes, can suppress the whole consumes electric power amount of freezer and increase.
Be used to solve the method for problem
In order to solve above-mentioned existing problem, the freezer of a mode of the present invention has: front surface has the storeroom of peristome; Open and close the door that seals above-mentioned peristome freely; Be that light source shines the lighting device in the above-mentioned storeroom with the light-emitting component, said freezer is characterised in that, comprising: door opens and closes test section, its state of opening that detects above-mentioned door with close state; And control device, it opens and closes test section at above-mentioned door and detects above-mentioned door for to open under the situation of state, with effluxion must long more above-mentioned lighting device light during long more mode make above-mentioned lighting device light repeatedly and extinguish.
Thus, in freezer, can disposable lighting device not lighted, but light repeatedly and extinguish and light gradually with irradiation lighting device in the storeroom.Thus, can alleviate the burden to user's vision, it is long to alleviate door opening-wide state twinkling and that reflection of light causes, can suppress the whole consumes electric power amount of freezer and increase.
The invention effect
According to the present invention; In the freezer of the lighting device in having the irradiation storeroom; Lighting device is not lighted but lighted gradually through disposable; Can alleviate the burden to user's vision, it is long to alleviate door opening-wide state twinkling and that reflection of light causes, can suppress the whole consumes electric power amount of freezer and increase.
Description of drawings
Fig. 1 is the sectional view of the freezer of embodiment 1.
Fig. 2 is the major part longitudinal section of the lighting device of embodiment 1.
Fig. 3 is the block diagram of functional structure of the control device of expression embodiment 1.
Fig. 4 be the expression embodiment 1 control device action one the example flow chart.
Fig. 5 be the expression embodiment 1 control device action one the example time diagram.
Fig. 6 be the expression embodiment 2 control device action one the example flow chart.
Fig. 7 be the expression embodiment 2 control device action one the example time diagram.
Fig. 8 is the major part longitudinal section that light emitting diode is disposed at the freezer that depth faces the wall and meditates of embodiment 3.
Fig. 9 is the major part longitudinal section of the freezer that light emitting diode is disposed at top wall of embodiment 3.
Figure 10 is the major part cross-sectional view of the freezer that light emitting diode is disposed at side walls of embodiment 3.
The specific embodiment
The freezer of first invention has: front surface has the storeroom of peristome; Open and close the door that seals above-mentioned peristome freely; Be that light source shines the lighting device in the above-mentioned storeroom with the light-emitting component, said freezer comprises: door opens and closes test section, its state of opening that detects above-mentioned door with close state; And control device, it opens and closes test section at above-mentioned door and detects above-mentioned door for to open under the situation of state, with effluxion must long more above-mentioned lighting device light during long more mode make above-mentioned lighting device light repeatedly and extinguish.
According to this first invention, in freezer with irradiation lighting device in the storeroom, with effluxion must long more lighting device light during long more mode make lighting device light repeatedly and extinguish.Thus, lighting device is not lighted but lighted gradually through disposable, can alleviate the burden to user's vision, the door opening-wide state that can alleviate dazzles causes with reflection of light is long, can suppress the whole consumes electric power amount of freezer and increase.
In addition; The freezer of second invention is particularly on the basis of first invention; Above-mentioned control device; With effluxion must be longer as make electric current flow through above-mentioned lighting device during ON during with respect to as do not make electric current flow through above-mentioned lighting device during OFF during the big more mode of ratio, make above-mentioned lighting device light repeatedly and extinguish.
According to this second invention, with effluxion more during the ON of long electrical wave the mode big more with respect to the ratio during the OFF make lighting device light repeatedly and extinguish.That is, through to make electric current flow through lighting device during control, can disposable lighting device not lighted, it is lighted gradually brightly.Thus, can alleviate the burden to user's vision, it is long to alleviate door opening-wide state twinkling and that reflection of light causes, can suppress the whole consumes electric power amount of freezer and increase.
In addition; The freezer of the 3rd invention is particularly on the basis of first or second invention; Above-mentioned control device; Open and close test section at above-mentioned door and detect above-mentioned door, continue to extinguish state, make after between the above-mentioned first phase of process above-mentioned lighting device light repeatedly and extinguish at the above-mentioned lighting device of first phase chien shih of regulation for after opening state.
According to the 3rd invention, detecting door, during stipulating, make lighting device continue to extinguish state for after opening state, thereafter, make lighting device light repeatedly and extinguish.That is, when opening, with process in the case with freezer outer around lightness state equal or below it the user is watched.Thus, reduce user's eyes burden, from then on light gradually, so can further reduce the burden to user's vision of lighting device, can suppress the whole consumes electric power amount of freezer and increase.
In addition; The freezer of the 4th invention is particularly on the basis of the 3rd invention; Above-mentioned control device; Between the above-mentioned first phase, do not make electric current flow through above-mentioned lighting device and continue to extinguish state, make above-mentioned lighting device light repeatedly and extinguish through the electric current that flows through above-mentioned lighting device is controlled through back between the above-mentioned first phase.
According to the 4th invention, do not make electric current flow through lighting device and continue to extinguish state, control through the electric current of convection current over-illumination device then, make lighting device light repeatedly and extinguish.That is, do not make electric current flow through lighting device through being controlled to be, when opening, make become in the case with freezer outer around lightness state equal or below it the user is watched.Thus, reduce user's eyes burden, from then on light gradually, so can further reduce the burden to user's vision of lighting device, can suppress the whole consumes electric power amount of freezer and increase.
In addition, particularly on the basis of first～the 4th invention, above-mentioned control device makes above-mentioned lighting device continue illuminating state after making above-mentioned lighting device carry out repeatedly lighting and extinguishing to the freezer of the 5th invention.In addition; The freezer of the 6th invention is particularly on the basis of the 5th invention; Above-mentioned control device; Make after above-mentioned lighting device lights repeatedly and extinguish through the electric current that flows through above-mentioned lighting device is controlled in the second phase, continue illuminating state through continuing to make electric current flow through above-mentioned lighting device.
According to the 5th and the 6th invention, control through the electric current of convection current over-illumination device, make lighting device light repeatedly and extinguish, continue illuminating state through continuing to make electric current flow through lighting device then.Thus, prevent sharply and illumination brightly, after becoming clear gradually, continue again to light,, can suppress the whole consumes electric power amount of freezer and increase so can further reduce the burden to user's vision of lighting device.
In addition; The freezer of the 7th invention is on the basis of first～the 6th invention; Above-mentioned control device; Make above-mentioned lighting device with after becoming first the mode during lighting during lighting and light repeatedly and extinguishing, make above-mentioned lighting device to become during lighting than first long second the mode during lighting during lighting and light repeatedly and to extinguish.In addition; The freezer of the 8th invention is particularly on the basis of the 7th invention; Above-mentioned control device decides dutycycle and cycle through PWM control, wherein above-mentioned dutycycle as make during the ON during electric current flows through above-mentioned lighting device and as do not make electric current flow through above-mentioned lighting device during OFF during ratio, with above-mentioned cycle repeatedly after the predetermined times; Make above-mentioned change in duty cycle; Increase the ratio during the above-mentioned ON, and with above-mentioned repeatedly number of times of above-mentioned cycle, make above-mentioned lighting device light repeatedly and extinguish thus.
According to the 7th and the 8th invention, make lighting device during same lighting, light repeatedly and extinguish, prolong then light during, and during same lighting, light repeatedly and extinguish.Particularly, (Pulse Width Modulation: pulse width modulation) control, the ratio during making change in duty cycle and increasing the ON of electric current makes lighting device light repeatedly and extinguish thus through PWM.Thus, can make the lightness increase more smoothly and light control in interim ground,, can suppress the whole consumes electric power amount of freezer and increase so can further reduce burden to user's vision.
Below, with reference to accompanying drawing embodiment of the present invention is described, about with the first identical structure of embodiment of explanation, the mark same-sign is omitted its detailed description.In addition, do not limit the present invention through this embodiment.
(embodiment 1)
Below, based on Fig. 1～Fig. 4 embodiment 1 of the present invention is described.
Fig. 1 is the sectional view of the freezer 100 of embodiment of the present invention 1.
As shown in the drawing, be formed with the refrigerating chamber 11 and refrigerating chamber 13 that has a plurality of storerooms of peristome as front surface in the inside of freezer 100.Refrigerating chamber 13 opens and closes the peristome that seals front surface freely by refrigerating-chamber door 25.In addition, freezer 100 has lighting device 20, temperature detecting part 22, door switching test section 24 and control device 26.
The temperature of each one in 22 pairs of freezers of temperature detecting part 100 detects.
Door opens and closes test section 24 and is made up of electronic switch such as mechanical switch or Hall IC, to the state of opening of the refrigerating-chamber door 25 of refrigerating chamber 13 with close state and detect.
In addition, the refrigerating chamber fan 10 at other positions that have as freezer 100 makes the circulating cold air in the refrigerating chamber 11, and at air door (damper) 12 for to open under the situation of state, cold air is circulated in refrigerating chamber 13.Do not need at refrigerating chamber 13 under the situation of cold air, make air door 12 become the state of closing.Compressor 16 and condenser (not shown) that 14 pairs of compressor fan are arranged at Machine Room 15 carry out the air cooling.The flow of the cold-producing medium of magnetic valve 17 subtend coolers 18 is controlled.Automatic ice maker 19 separates the ice cube action with ice-making disc 21 rotations.
Fig. 2 is the major part longitudinal section of the lighting device 20 of this embodiment 1.
As shown in the drawing, lighting device 20 has installation base plate 1, light emitting diode 2, energising terminal 3, thermal insulation board 4, sept 6, lampshade 7 and housing 9.
As the light emitting diode 2 of the light-emitting component that becomes light source, be that shell shape ground forms and be used to that blue light from the blue LED of GaN class comes the activating fluorescent material and the structure that obtains white light that two energising terminals 3 that pass to electric current are derived.
Thermal insulation board 4 becomes tabular by resin-shaped such as polyurethane, is set side by side with a plurality of inserting holes, is arranged between installation base plate 1 and the light emitting diode 2.
At this, the energising terminal 3 of light emitting diode 2 is inserted and is led in the inserting hole of thermal insulation board 4, and soldering is installed on the circuit pattern of installation base plate 1, and a plurality of light emitting diodes 2 longitudinally are set up in parallel in installation base plate 1.In addition, under the little situation of the caloric value of light emitting diode 2, also can remove thermal insulation board 4.
In addition, the installation base plate 1 of a plurality of light emitting diodes 2 is installed longitudinally, by remaining in the recess 5 that is arranged in the freezer sidewall 8 with housing 9 integrated septs 6.In addition, with a certain distance from the position of the illuminating part of light emitting diode 2, dispose lampshade 7 with the whole mode of illuminating part that covers light emitting diode 2.So just left and right sides wall is separately installed with lighting device 20 in the case of freezer 100.
The functional structure of the control device 26 that then, freezer 100 is had is elaborated.
Fig. 3 is the block diagram of functional structure of the control device 26 of expression this embodiment 1.
As shown in the drawing, control device 26 has microcomputer 30, lighting device drive circuit 31, refrigerating chamber fan drive circuit 32, compressor fan drive circuit 33, driving circuit for electromagnetic valve 34 and automatic ice-making drive circuit 35.
Particularly, refrigerating chamber fan drive circuit 32 drives refrigerating chamber fan 10 according to the indication from microcomputer 30.At this, refrigerating chamber fan drive circuit 32 can make the running of refrigerating chamber fan 10 variable-ratio ground.Promptly; Refrigerating chamber fan drive circuit 32; When microcomputer 30 is judged as with reference to the temperature that obtains from temperature detecting part 22 when needing 10 rotations of refrigerating chamber fan,, can refrigerating chamber fan 10 be switched to rotation or low speed rotation at a high speed through indication from microcomputer 30.
In addition, compressor fan drive circuit 33 is according to the indication from microcomputer 30, Driven Compressor fan 14.Equally, driving circuit for electromagnetic valve 34 drives magnetic valve 17, and automatic ice-making drive circuit 35 drives automatic ice maker 19.
Lighting device drive circuit 31 is obtained an open and-shut mode that opens and closes test section 24 detected refrigerating-chamber doors 25 according to the indication from microcomputer 30, for to open under the situation of state, drives lighting device 20 at refrigerating-chamber door 25.
Particularly, lighting device drive circuit 31 opens and closes test section 24 at door and detects refrigerating-chamber door 25 for to open under the situation of state, with effluxion must be longer and during lighting device 20 is lighted long more mode make lighting device 20 light repeatedly and extinguish.That is, lighting device drive circuit 31 must be longer with effluxion and make electric current flow through lighting device 20 during be during the ON with respect to do not make electric current flow through lighting device 20 during be that the big more mode of ratio during the OFF makes lighting device 20 light repeatedly and extinguish.
In addition, lighting device drive circuit 31 opens and closes test section 24 at door and detects refrigerating-chamber door 25 for after opening state; Between the first phase of regulation; Make lighting device 20 continue to extinguish state, passed through should be between the first phase after, make lighting device 20 light repeatedly and extinguish.That is, lighting device drive circuit 31 did not make electric current flow through lighting device 20 and continues to extinguish state between the first phase, after having passed through between the first phase, controlled through the electric current of convection current over-illumination device 20, made lighting device 20 light repeatedly and extinguish.
In addition, lighting device drive circuit 31 makes lighting device 20 continue illuminating state after making lighting device 20 carry out repeatedly lighting and extinguishing.That is, lighting device drive circuit 31 is through controlling at the electric current of second phase convection current over-illumination device 20, makes lighting device 20 light repeatedly and extinguish, and through continuing to make electric current flow through lighting device 20, continues illuminating state then.
Fig. 4 be the expression this embodiment 1 control device 26 action one the example flow chart.Particularly, this figure is the flow chart of the drive controlling of the lighting device 20 that carries out about lighting device drive circuit 31.
Fig. 5 be the expression this embodiment 1 control device 26 action one the example time diagram.Particularly, this figure is with regard to the action of lighting and extinguishing of the light emitting diode 2 of lighting device 20, to be the time diagram that chronomere representes the action in each stage (1,2,3) with the transverse axis.
As shown in Figure 4, in step 1, lighting device drive circuit 31 decision gates open and close test section 24 and whether detect refrigerating-chamber door 25 for opening state.Then, lighting device drive circuit 31 be judged as open and close a test section 24 detect refrigerating-chamber door 25 for the situation of closing state under (in step 1, " denying "), with the timing zero clearing (step 2) of timer 36, turn back to step 1.In addition, lighting device drive circuit 31 be judged as open and close a test section 24 detect refrigerating-chamber door 25 for the situation of opening state under (in step 1, " being "), move to step 3.
In step 3, the pick up counting timing of device 36 of lighting device drive circuit 31 in addition, is set at initial value 1 with independent variable A.
Then, in step 4, lighting device drive circuit 31 judges that whether the count value of the timing of timer 36 is that T1 is big between the first phase than regulation.Then, lighting device drive circuit 31 is (in step 4, " being ") under the situation of the count value that is judged as timer 36 greater than T1, moves to step 6.In addition, lighting device drive circuit 31 is (in a step 4, " denying ") under the situation below the T1 in the count value that is judged as timer 36, moves to step 5.
In step 5, lighting device drive circuit 31 turns back to step 1 in that light emitting diode 2 is maintained under the state that extinguishes.As stated, through carrying out the action of step 4 and 5, shown in the stage 1 of Fig. 5, opening wide even a door switching test section 24 detects refrigerating-chamber door 25, during reaching T1 from door, the light emitting diode 2 of lighting device 20 is not lighted yet, and extinguishes state but keep.
In addition, in step 6, lighting device drive circuit 31 is lighted the light emitting diode 2 of lighting device 20.That is, represented during having passed through T1 after, the situation that the light emitting diode 2 of lighting device 20 is lighted.
Then, in step 7, lighting device drive circuit 31 judges that whether the count value of timing of timer 36 is greater than T2 * A (initial value is 1).Then, lighting device drive circuit 31 turns back to step 6 being judged as count value (in step 7, " denying ") under the situation below T2 * A.In addition, lighting device drive circuit 31 moves to step 8 being judged as (in step 7, " being ") under the situation of count value greater than T2 * A.
In step 8, lighting device drive circuit 31 extinguishes the light emitting diode 2 of lighting device 20.
Then, in step 9, lighting device drive circuit 31 judges that whether the count value of timer 36 is greater than T3.Then, lighting device drive circuit 31 turns back to step 8 being judged as count value (in step 9, " denying ") under the situation below the T3.In addition, lighting device drive circuit 31 moves to step 10 being judged as (in step 9, " being ") under the situation of count value greater than T3.
As stated, through carry out step 6～9 action, shown in the stage 2 of Fig. 5, become the action during the initial T3.That is, during T2 * A, the light emitting diode 2 of lighting device 20 is lighted, during having passed through T2 * A after, during T3, light emitting diode 2 all extinguishes.
In step 10, lighting device drive circuit 31 adds that with independent variable A the value of P value gained is made as independent variable A.
Then, in step 11, lighting device drive circuit 31 judges that whether T2 * A is greater than T3.Then, lighting device drive circuit 31 is being judged as T2 * A (in step 11, " denying ") under the situation below the T3, and (step 12) turns back to step 6 with the timing zero clearing of timer 36.In addition, lighting device drive circuit 31 maintains the state of lighting, end process being judged as (in step 11, " being ") under the situation of T2 * A greater than T3 with light emitting diode 2.
As stated, through carrying out step 10 and 11 action, shown in the stage 2 of Fig. 5, become the action during the second period T3.That is, during T2 * (A+P), the light emitting diode 2 of lighting device 20 is lighted.
Then, up to all extinguishing during the T3 thereafter.Like this, during independent variable A adds that P value and T2 * A are less than T3, carry out repeatedly the limit prolong gradually light during the limit action of extinguishing.And as T2 * A during greater than T3, shown in the stage 3, during door was opened, the light emitting diode 2 of lighting device 20 was lighted.
Therefore, when refrigerating-chamber door 25 opened wide, door opened and closed a test section 24 and detects refrigerating-chamber door 25 for opening state, but as the stage 1 of Fig. 5, during T1, even opening wide, light emitting diode 2 is also kept the state that extinguishes.Then; After during having passed through T1; Move to the action in stage 2; Make with respect to during specified time limit the lighting of T3 as T2 * A (first), T2 * (A+P) (second), T2 * (A+P+P) (the 3rd) ... T2 * (A+P+ ...) (N) that kind, always prolong gradually make electric current flow through light emitting diode 2 during, thereby prolong during the ON that lights gradually.Like this, light emitting diode 2 is in the second phase, lights repeatedly and extinguishes.Then, as the stage 3, during lighting greater than during the T3 time, refrigerating-chamber door 25 open wide during, light emitting diode 2 continues to light.
Thereby, when refrigerating-chamber door 25 opens wide and light emitting diode 2 when lighting, because light emitting diode 2 has directive property especially, so when through the collecting article reflection or directly receive the light time, light is prone to inject user's eyes, instead be difficult for seeing in the refrigerating chamber 13 at once.Therefore, as present embodiment, through lighting again through after specified time limit; Promptly; When opening,, reduce user's eyes burden through continuing the state that extinguishes during the T1 and the state below the lightness that becomes the outer ambient illumination of freezer in the case being made in user's viewing-box.And, since light gradually thereafter, thus little to the eyes burden concerning the user, can reduce the difficulty degree of opinion in the refrigerating chamber 13.Like this, can further reduce the burden to user's vision of lighting device 20, can also suppress freezer 100 whole consumes electric power amounts and increase.
(embodiment 2)
In above-mentioned embodiment 1, always the limit prolongs gradually with respect to limit during the lighting of T3 and lights control, but in this embodiment 2, further carries out smoothly from extinguishing the transition state of state to illuminating state.
Particularly; In this embodiment 2; Lighting device drive circuit 31 makes lighting device 20 to become first the mode during lighting during lighting and light repeatedly and to extinguish, and lights repeatedly and extinguishes to become during lighting than this first long second mode during lighting during lighting then.
More specifically; Lighting device drive circuit 31 through PWM control decide make electric current flow through lighting device 20 during be during the ON and do not make electric current flow through lighting device 20 during be that ratio during the OFF is dutycycle and cycle; Should the cycle repeatedly after the predetermined times; Ratio during making change in duty cycle and increasing ON, should the cycle this number of times repeatedly, make lighting device 20 light repeatedly and extinguish thus.
Fig. 6 be the expression this embodiment 2 control device 26 action one the example flow chart.Particularly, this figure is the flow chart of the drive controlling of the lighting device 20 that carries out about lighting device drive circuit 31.
Fig. 7 be the expression this embodiment 2 control device 26 action one the example time diagram.Particularly, this figure is with regard to the action of lighting and extinguishing of the light emitting diode 2 of lighting device 20, to be the time diagram that chronomere representes the action in each stage (101,102,103) with the transverse axis.
At this, step 1 shown in Figure 6,2,4～9,11 and 12 is and step 1 shown in Figure 4,2,4～9,11 and 12 same processing, so omit detailed explanation, especially the step 21 different with processing shown in Figure 4～23 is elaborated.
At first, as shown in Figure 6, lighting device drive circuit 31 be judged as open and close a test section 24 detect refrigerating-chamber door 25 for the situation of opening state under (in step 1, " being "), move to step 21.
In step 21, the pick up counting timing of device 36 of lighting device drive circuit 31 in addition, is set at 1 of initial value with independent variable A, and B is set at 0 with independent variable.
Then, carry out step 4 and 5 action through lighting device drive circuit 31, shown in the stage 101 of Fig. 7, during reaching T1 from door, keep lighting device 20 light emitting diode 2 extinguish state.
Then, carry out step 6～9 action, shown in the stage 102 of Fig. 7, become the action during the initial T3 through lighting device drive circuit 31.That is, during T2 * A, the light emitting diode 2 of lighting device 20 is lighted, and thereafter, during T3, light emitting diode 2 all extinguishes.
Then, in step 22, lighting device drive circuit 31 is set at B=B+1 with independent variable B, and judges that whether the B that adds after 1 is greater than 5.Then, lighting device drive circuit 31 turns back to step 6 being judged as the B (in step 22, " denying ") under the situation below 5 that adds after 1, and (in step 22, " being ") moves to step 23 under being judged as greater than 5 situation.
In step 23, lighting device drive circuit 31 adds that with independent variable A the value of P value gained is made as independent variable A, and B is made as 0 with independent variable.
Then, lighting device drive circuit 31 compares T2 * A and T3 in step 11, is being judged as T2 * A (in step 11, " denying ") under the situation below the T3, and (step 12) turns back to step 6 with the timing zero clearing of timer 36.In addition, lighting device drive circuit 31 maintains the state of lighting, end process being judged as (in step 11, " being ") under the situation of T2 * A greater than T3 with light emitting diode 2.
As stated, through carrying out step 22,23 and 11 action, shown in the stage 102 of Fig. 7, will during T3, be the action of extinguishing 5 times repeatedly lighting the back (first light during) during T2 * A during the initial T3.Then, as the action during the second period T3 thereafter, will be during T2 * (A+P) (second light during) light the back and during T3, be the action of extinguishing 5 times repeatedly.
That is, lighting device drive circuit 31 decides dutycycle and cycle through PWM control.At this, dutycycle electric current is flow through during the lighting device 20 be (during T2 * A) during the ON and do not make electric current flow through lighting device 20 during be the ratio of (during T3-T2 * A) during the OFF, during the cycle is T3.And lighting device drive circuit 31 should the cycle repeatedly after 5 times, during the ON to be the ratio during mode during the T2 * (A+P) makes change in duty cycle and increases ON, and further should the cycle 5 times repeatedly.
Like this, during independent variable A adds that P value and T2 * A are less than T3, carry out repeatedly the limit prolong gradually light during the limit action of extinguishing.Then, as T2 * A during greater than T3, shown in the stage 103, during door was opened, the light emitting diode 2 of lighting device 20 was lighted.
As stated; In this embodiment, under the situation of having opened refrigerating-chamber door 25, the lighting of lighting device 20 of the installation base plate 1 of the light emitting diode 2 that sends the wavelength in the visible ray regions is installed for use; Detecting refrigerating-chamber door 25 for to open under the situation of state by door switching test section 24; Light emitting diode 2 continues to extinguish, behind process T1 specified time limit, and action as follows.
That is, shown in the stage 102 of Fig. 7, during with respect to the T2 * A during the predefined T3, the light emitting diode 2 of lighting device 20 is lighted, and becomes and extinguishes state during T3 through back during the lighting of T2 * A.Will this a series of action B time repeatedly (under the situation of present embodiment, 5 times), then; Make with respect to during extending to T2 * (A+P) during the lighting of T3; To light and extinguish B time repeatedly equally, during further prolongation is lighted then, and will light and extinguish B time repeatedly.And, as T2 * A during, make during the electric current ON of light emitting diode 2 to continue finally greater than T3, continue illuminating state.
Thereby; When the user has opened refrigerating-chamber door 25; What see is that light emitting diode 2 is lighted to illuminating state from extinguishing state more smoothly gradually, so for the light of the light emitting diode with directive property 2, can reduce indoor difficulty degree of opinion; As freezer 100 integral body, can realize the reduction of consumes electric power amount.
In addition, as stated, the number of times of lighting repeatedly and extinguish is fixed on certain number of times for example 5 times and light control, makes with respect to repeatedly number of times during identical the lighting of T3 but also can reduce gradually.
Thus, can control smoothly from extinguishing state and become the lightness of light emitting diode 2 of the transition period of illuminating state.
In addition, when refrigerating-chamber door 25 is opened, all carry out extinguishing during certain, can improve quality thus, the consumes electric power in the time of can suppressing refrigerating-chamber door 25 and open as illumination up to lighting.
In addition; Freezer of the present invention has the control device of the electric current that flows through light emitting diode 2 being controlled according to the testing result of door switching test section 24 26; Detecting refrigerating-chamber door 25 for to open under the situation of state by door switching test section 24, control device 26 is controlled as follows, promptly; After making the electric current that flows through light emitting diode 2 carry out OFF specified time limit, the ON of electric current and the ratio during the ON in the ratio during the OFF are increased.
Thus, when lighting, lighting device 20 is slowly lighted, so can improve the quality as illumination, the consumes electric power in the time of can suppressing refrigerating-chamber door 25 and open.In addition, owing to be lowered during the ON of light emitting diode 2, so can realize the long lifetime of light emitting diode 2.
In addition, freezer of the present invention has the control device of the electric current that flows through light emitting diode 2 being controlled through the testing result of door switching test section 24 26, is detecting refrigerating-chamber door 25 for to open under the situation of state by door switching test section 24; Control device 26 is controlled as follows, that is, make the electric current that flows through light emitting diode 2 carry out OFF specified time limit after; With the identical ON of electric current and OFF repeatedly for several times (in embodiment 2; 5 times), thereafter, prolong during the ON gradually.
Thus, when the lighting of light emitting diode 2, the light emitting diode 2 of lighting device 20 from level and smooth illuminating state prolong at leisure light during, improve the quality of conduct illumination so can carry out a step with high-grade sense.
In addition, in embodiment 1, the control of behind process T1 specified time limit as the step 4 of Fig. 4 light emitting diode 2 being lighted and lighting is continuously gradually represented; But also can be without specified time limit, that is, T1=0 ground gets into step 6; After, likewise control with embodiment 1.
Thus, lighting device is not lighted but lighted brightly gradually through disposable, can alleviate the burden to user's vision, the door opening-wide state that can reduce dazzles causes with reflection of light is long, can suppress freezer 100 whole consumes electric power amounts and increase.
In addition, too, in the step 4 of Fig. 6, process behind the T1 is lighted light emitting diode 2 specified time limit in embodiment 2, but also can be without specified time limit, that is, T1=0 ground gets into step 6, after, likewise control with embodiment 2.
(embodiment 3)
In above-mentioned embodiment 1,2; Longitudinally be formed under the left and right sides both sides' in the refrigerating chamber 13 the situation of side wall surface at freezer 100 lighting devices 20 like Fig. 1; Particularly; Under being configured in, as above-mentioned embodiment, carry out the illumination control of light emitting diode 2 than the shelf 13a situation more on the front in the refrigerating chamber 13.
Refrigerating chamber as Fig. 1 13 according to the level configurations of user face under the situation on top; Light emitting diode 2 to throwing light in the refrigerating chamber 13 has directive property on optical axis; So particularly at optical axis under the situation of the peristome direction of refrigerating chamber 13, the light of light emitting diode 2 be prone to get into user's eyes, if when refrigerating-chamber door 25 opens wide, prolong gradually during the lighting of light emitting diode 2; Then user's eyes just are prone to adapt to, and can look around in the case.
In addition; Except that the situation of freezer shown in Figure 1 100; Be disposed at depth face (inner face) wall of refrigerating chamber 13 and under the situation of the opening direction configuration of refrigerating chamber 13, light also is prone to get into user's eyes, so if prolong gradually during aforesaid the lighting at the light emitting diode 2 of freezer as shown in Figure 8 101 such lighting devices 20; Then be prone to be adapted to eyes, can reduce twinkling.Fig. 8 is the major part longitudinal section that light emitting diode 2 is disposed at the freezer 101 that depth faces the wall and meditates of this embodiment 3.
In addition, lampshade 7 adopts transparent panel, and becomes concaveconvex shape.Thus, the light of light emitting diode 2 spreads through concaveconvex shape, so can reduce the light that gets into eyes.In addition, through making lampshade 7 translucentization, can realize the diffusion of light.
In addition; A plurality of light emitting diodes 2 fore-and-aft directions of freezer as shown in Figure 9 102 such lighting devices 20 be disposed under the situation of top wall of refrigerating chamber 13; Particularly; Be disposed at towards the mode below the vertical at optical axis under the situation of top wall of refrigerating chamber 13 with light emitting diode 2, owing to have directive property, so irradiated scope is about 30 ° with respect to optical axis.Therefore, become following configuration relation: though the optical axis of light emitting diode 2 towards the below of vertical, light also is prone to inject from the top user's eyes.Fig. 9 is the major part longitudinal section that light emitting diode 2 is disposed at the freezer 102 of top wall of this embodiment 3.
In addition, be not disposed under the situation of vertical downwards, and form concaveconvex structure so that under the situation of light diffusion, light also is prone to get into eyes at lampshade 7 at the optical axis of light emitting diode 2.
Therefore; In this case; Through little by little carrying out embodiment 1 successively, light action shown in 2 from becoming light emitting diode 2 away from light emitting diode 2 side in front of being positioned at of the depth side of the position of user's eyes, can reduce twinklingly, can reduce the increase of consumes electric power amount.
In addition, the lightness of the light emitting diode 2 through side in front of making the light emitting diode 2 that is disposed at the depth side and being disposed at changes, and it is low more to be set at more in front of the depth side direction sidelight degree, can reduce the burden to user's vision.
In addition, Figure 10 is the major part cross-sectional view that light emitting diode 2 is disposed at the freezer 103 of side walls of this embodiment 3.Particularly, this figure is the sectional view of the freezer 103 that forms by refrigerating chamber 11, refrigerating chamber 13 and with the zoning wall 50 of the heat insulation zoning of refrigerating chamber 11 and refrigerating chamber about 13 ground.
As shown in the drawing; In freezer 103, dispose two refrigerating chamber lighting device 20a with installation base plate 1; Said installation base plate 1 is equipped with a plurality of light emitting diodes 2; Said light emitting diode 2 detects refrigerating-chamber door 25 when unlimited in the switching of the refrigerating-chamber door 25 of the front surface peristome through opening and closing refrigerating chamber 13, lights.In addition, in freezer 103, also dispose the refrigerating chamber lighting device 20b with installation base plate 1, said installation base plate 1 is equipped with a plurality of light emitting diodes 2 of when refrigerating chamber door 25a opens wide, lighting.Particularly, the shelf 13a the place ahead of facing the wall and meditating in the left and right sides of refrigerating chamber 13 is provided with refrigerating chamber lighting device 20a, and the shelf 11a the place ahead of facing the wall and meditating in the left side of refrigerating chamber 11 is provided with refrigerating chamber lighting device 20b.
Under the situation that only refrigerating-chamber door 25 of refrigerating chamber 13 opens wide, only two refrigerating chamber lighting device 20a carry out the following control of lighting like enforcement mode 1,2, that is, and and during prolongation is lighted gradually, through continuing illuminating state after specified time limit continuously.Too, only refrigerating chamber lighting device 20b lights control as follows under the situation that refrigerating chamber door 25a only opens wide, that is, prolong gradually light during, through continuing illuminating state after specified time limit continuously.
In addition; Be disposed at respectively at refrigerating chamber lighting device 20a under the situation at these two different positions of side walls and top wall; Make the refrigerating chamber lighting device 20a that is disposed at different parts synchronously carry out the following control of lighting; That is, during prolongation is lighted gradually, through continuing illuminating state after specified time limit continuously.
Thus, lighting device is not lighted but lighted brightly gradually through disposable, can alleviate the burden to user's vision, the door opening-wide state that can reduce dazzles causes with reflection of light is long, can suppress the whole consumes electric power amount of freezer and increase.
Utilize possibility on the industry
As stated, it is self-evident that freezer of the present invention is implemented under family expenses or the situation of commercial affairs with the illumination of the suitable light emitting diode of freezer, also can be applicable to the equipment machine widely of the suitable led lightings such as article stowage arrangement of door.
Symbol description
1 installation base plate
2 light emitting diodes
3 energising terminals
4 thermal insulation boards
5 recesses
6 septs
7 lampshades
8 freezer sidewalls
9 housings
10 refrigerating chamber fans
11 refrigerating chambers
The 11a shelf
12 air doors
13 refrigerating chambers
The 13a shelf
14 compressor fan
15 Machine Rooms
16 compressors
17 magnetic valves
18 coolers
19 automatic ice makers
20 lighting devices
20a refrigerating chamber lighting device
20b refrigerating chamber lighting device
21 ice-making disc
22 temperature detecting parts
24 open and close test section
25 refrigerating-chamber doors
The 25a refrigerating chamber door
26 control device
28 substrate reception portions
30 microcomputers
31 lighting device drive circuits
32 refrigerating chamber fan drive circuits
33 compressor fan drive circuits
34 driving circuit for electromagnetic valve
35 automatic ice-making drive circuits
36 timers
50 zoning walls
100,101,102,103 freezers
Claims (8)
1. a freezer is characterized in that, comprising:
Front surface has the storeroom of peristome; Open and close the door that seals said peristome freely; Be that light source shines the lighting device in the said storeroom with the light-emitting component, said freezer has:
Door opens and closes test section, and it detects the state of opening of said door and closes state; With
Control device, it opens and closes test section at said door and detects said door for to open under the situation of state, with effluxion must long more said lighting device light during long more mode make said lighting device light repeatedly and extinguish.
2. freezer as claimed in claim 1 is characterized in that:
Said control device; With effluxion must be longer as make electric current flow through said lighting device during ON during with respect to as do not make electric current flow through said lighting device during OFF during the big more mode of ratio, make said lighting device light repeatedly and extinguish.
3. according to claim 1 or claim 2 freezer is characterized in that:
Said control device opens and closes test section at said door and detects said door for after opening state, continues to extinguish state at the said lighting device of first phase chien shih of regulation, makes after between the said first phase of process said lighting device light repeatedly and extinguish.
4. freezer as claimed in claim 3 is characterized in that:
Said control device does not make electric current flow through said lighting device between the said first phase and continues to extinguish state, makes said lighting device light repeatedly and extinguish through back between the said first phase through the electric current that flows through said lighting device is controlled.
5. like each the described freezer in the claim 1～4, it is characterized in that:
Said control device makes said lighting device continue illuminating state after making said lighting device carry out repeatedly lighting and extinguishing.
6. freezer as claimed in claim 5 is characterized in that:
Said control device made after said lighting device lights repeatedly and extinguish through the electric current that flows through said lighting device is controlled in the second phase, continued illuminating state through continuing to make electric current flow through said lighting device.
7. like each the described freezer in the claim 1～6, it is characterized in that:
Said control device; Make said lighting device with after becoming first the mode during lighting during lighting and light repeatedly and extinguishing, make said lighting device to become during lighting than first long second the mode during lighting during lighting and light repeatedly and to extinguish.
8. freezer as claimed in claim 7 is characterized in that:
Said control device decides dutycycle and cycle through PWM control; Wherein said dutycycle as make during the ON during electric current flows through said lighting device and as do not make electric current flow through said lighting device during OFF during ratio; With said cycle repeatedly after the predetermined times, make said change in duty cycle, increase the ratio during the said ON; And, make said lighting device light repeatedly and extinguish thus with said repeatedly number of times of said cycle.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009288591 | 2009-12-21 | ||
| JP2009-288591 | 2009-12-21 | ||
| JP2010-239253 | 2010-10-26 | ||
| JP2010239253A JP2011149686A (en) | 2009-12-21 | 2010-10-26 | Refrigerator |
| PCT/JP2010/007132 WO2011077651A1 (en) | 2009-12-21 | 2010-12-08 | Refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102667378A true CN102667378A (en) | 2012-09-12 |
Family
ID=44195205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800581921A Pending CN102667378A (en) | 2009-12-21 | 2010-12-08 | Refrigerator |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2011149686A (en) |
| CN (1) | CN102667378A (en) |
| TW (1) | TW201139958A (en) |
| WO (1) | WO2011077651A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6719263B2 (en) * | 2016-04-18 | 2020-07-08 | 東芝ライフスタイル株式会社 | refrigerator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101086419A (en) * | 2006-06-06 | 2007-12-12 | 泰州乐金电子冷机有限公司 | Refrigerator and controlling method thereof |
| JP2008070000A (en) * | 2006-09-12 | 2008-03-27 | Matsushita Electric Ind Co Ltd | Storage |
| JP2008075925A (en) * | 2006-09-20 | 2008-04-03 | Sharp Corp | Refrigerator |
| CN201104072Y (en) * | 2007-09-28 | 2008-08-20 | 吴俊毅 | Refrigerator structure of humanized multifunctional device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0634266A (en) * | 1992-07-14 | 1994-02-08 | Matsushita Electric Ind Co Ltd | Refrigerator |
-
2010
- 2010-10-26 JP JP2010239253A patent/JP2011149686A/en active Pending
- 2010-12-08 CN CN2010800581921A patent/CN102667378A/en active Pending
- 2010-12-08 WO PCT/JP2010/007132 patent/WO2011077651A1/en active Application Filing
- 2010-12-17 TW TW99144492A patent/TW201139958A/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101086419A (en) * | 2006-06-06 | 2007-12-12 | 泰州乐金电子冷机有限公司 | Refrigerator and controlling method thereof |
| JP2008070000A (en) * | 2006-09-12 | 2008-03-27 | Matsushita Electric Ind Co Ltd | Storage |
| JP2008075925A (en) * | 2006-09-20 | 2008-04-03 | Sharp Corp | Refrigerator |
| CN201104072Y (en) * | 2007-09-28 | 2008-08-20 | 吴俊毅 | Refrigerator structure of humanized multifunctional device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011077651A1 (en) | 2011-06-30 |
| JP2011149686A (en) | 2011-08-04 |
| TW201139958A (en) | 2011-11-16 |
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Application publication date: 20120912 |