CN101881548B - Illumination system of icebox - Google Patents
Illumination system of icebox Download PDFInfo
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- CN101881548B CN101881548B CN2010102175604A CN201010217560A CN101881548B CN 101881548 B CN101881548 B CN 101881548B CN 2010102175604 A CN2010102175604 A CN 2010102175604A CN 201010217560 A CN201010217560 A CN 201010217560A CN 101881548 B CN101881548 B CN 101881548B
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Abstract
The invention provides an illumination system of an icebox, comprising a lamp assembly, a detection device and a control device. The lamp assembly comprises a plurality of LED lamps arranged in a preset mode, the detection device is used for detecting whether an icebox door is opened or closed, and the control device is respectively connected with the lamp assembly and the detection device and controls all the LED lamps in the lamp assembly according to the detection result of the detection device so as to gradually light up the LED lamps when the icebox door is opened and gradually extinguish the LED lamps when the icebox door is closed. In the invention, by controlling the lamp assembly through the control device, the LED lamps in the lamp assembly are gradually lighted up or extinguished so as to generate the effect like night sky stars, bring a user with a night sky star feeling and enhance the user feeling.
Description
Technical field
The present invention relates to household electrical appliances manufacturing technology field, particularly a kind of illuminator of refrigerator.
Background technology
At present, in the illuminator of cold compartment of refrigerator, usually adopt incandescent lamp or the LED lamp throws light on, but the mode of illumination being all more single, basically all is that to open the door be that lamp is bright, and lamp goes out at closing time, therefore lacks to change.Improving constantly of Along with people's living standard, single like this illumination can not better meet growing demand, therefore needs the illumination system to improve.
Summary of the invention
The object of the invention is intended to solve at least one of above-mentioned technological deficiency, particularly solves the single technological deficiency of refrigerating chamber illumination in the prior art.
For achieving the above object, one aspect of the present invention proposes a kind of illuminator of refrigerator, comprising: lamp assembly, said lamp assembly comprise a plurality of LED lamps of arranging in a predefined manner; Checkout gear, whether said checkout gear detection refrigerator doors is unlocked or closes; And control device; Said control device links to each other with said checkout gear with said lamp assembly respectively; Said control device is controlled each LED lamp in the said lamp assembly according to the testing result of said checkout gear; When said refrigerator doors is unlocked, lightening said each LED lamp gradually, and, said refrigerator doors extinguishes said each LED lamp when being closed gradually.
The present invention, makes each LED lamp in the lamp assembly light gradually or extinguish, thereby produces the effect that is similar to night sky starlight the control of lamp assembly through control device, gives the user sensation with starry sky at night, strengthens user's impression.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously with easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the lighting system structure figure of the refrigerator of the embodiment of the invention;
Fig. 2 is the lamp assembly scheme of installation of the embodiment of the invention;
The sketch map that Fig. 3 arranges with the starlight mode of the imitative night sky for a plurality of LED lamps of the embodiment of the invention;
Fig. 4 is the illuminator drive part sketch map of the embodiment of the invention.
The specific embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
As shown in Figure 1, be the lighting system structure figure of the refrigerator of the embodiment of the invention.This illuminator comprises lamp assembly 100, checkout gear 200 and the control device 300 that links to each other with checkout gear 200 with lamp assembly 100 respectively, and wherein, lamp assembly 100 comprises a plurality of LED lamps of arranging in a predefined manner.Whether checkout gear 200 is used to detect refrigerator doors and is unlocked or closes.Control device 300 is controlled each LED lamp in the lamp assembly 100 according to the testing result of checkout gear 200, when refrigerator doors is unlocked, lightening each LED lamp gradually, and when refrigerator doors is closed, extinguishes each LED lamp gradually.Like this, each LED lamp is slowly lighted under the control of control device 300 or is extinguished, thereby produces the effect of starlight in the similar night sky, particularly brings the sensation of starry sky to the user who uses refrigerator evening, strengthens user's use experience.
In one embodiment of the invention, lamp assembly 100 comprises lamp socket 110, is installed in the lamp plate 120 on the lamp socket 110, and lamp plate 120 comprises a plurality of LED lamps of being positioned on the lamp plate 120 and arranging in a predefined manner and cooperates the lampshade 130 of installation with lamp socket 110.In a preferred embodiment of the invention, as shown in Figure 2, be the lamp assembly scheme of installation of the embodiment of the invention.Preferably lamp socket 110 is installed in the top of refrigerating chamber, those skilled in the art also can be installed to lamp socket 110 other positions of refrigerating chamber certainly, and these all should be included within protection scope of the present invention.
Preferably, a plurality of LED lamps in the lamp assembly 100 are arranged with the starlight mode of the imitative night sky.As shown in Figure 3, be the sketch map that a plurality of LED lamps 140 of the embodiment of the invention are arranged with the starlight mode of the imitative night sky, a plurality of in the figure LED lamps are arranged in the shape of similar stars.In one embodiment of the invention, on lampshade 130, be provided with a plurality of leaded light grooves, thereby make the light of LED lamp to scatter and staggered to periphery is irregular through the leaded light groove.Certainly arrangement mode shown in Figure 3 only is schematically, and those skilled in the art also can make amendment or change it.
In said lighting system; For a plurality of LED lamps of arranging in a predefined manner on lamp plate 120; Control device 300 can be regulated the dutycycle of each LED lamp through PWM, through controlling the ON time of each LED lamp, thereby the electric current of each LED lamp is precisely controlled.If certain LED lamp dutycycle is 100% o'clock (i.e. the free all conductings of this lamp of institute), the electric current of this LED lamp of flowing through this moment is 20mA, and this LED is the brightest state; If dutycycle is 50%, the electric current of this LED lamp of then flowing through is 10mA; Equally, if dutycycle is 0%, then electric current is 0mA, and this moment, this LED lamp did not work.Therefore the luminosity that can find out the LED lamp is closely bound up with the electric current of flowing through, thereby can realize the accurate control to each road brightness.
In embodiments of the present invention, control device 300 carries out PWM control for the high bright LED lamp of several random arrangements to each LED lamp, and each LED lamp slowly brightens by it; Reach the brightest after slowly deepening again, until extinguishing, simultaneously each LED lamp light with extinguish asynchronous fully; At each constantly, the lamp that has is very bright, and the lamp brightness that has is moderate; The lamp brightness that has is dark partially, and each LED lamp brightness constantly changes, thereby realizes the effect of starry sky illumination.
Certainly in other embodiments of the invention, control device 300 can also be controlled the brightness of said a plurality of LED lamps in a synchronous manner, thereby produces whole brightening gradually or the whole technique effect of deepening gradually.
Therefore, the illuminator through Fig. 1 makes the light of refrigerator under the control of control device 300, accomplish by bright deepening or gradually changed by what secretly brighten, and perceptual image is to breathe.In the present invention, carry out the characteristic that eye is satisfied in light modulation, control the bright dark degree of LED lamp in the preferred embodiment through the dutycycle size of control PWM ripple.
And; In the above-described embodiments; If checkout gear 200 judges that refrigerator doors is in opening always, then the variation of each LED lamp of control device 300 Sustainable Control is to cause the effect of starry sky illumination, and for example control device 300 is opened whole LED lamps step by step; And each LED lamp of the size of the dutycycle through PWM ripple control brightening gradually; And reach the brightest after control section LED lamp deepening gradually again, thereby guarantee that the open period in refrigerator doors has partial L ED to keep illuminating state all the time, thereby and brightness progressively change the effect that produces similar starry sky.
In specific embodiment of the present invention, control device 300 comprises controller and led driver.Controller generates the control signal to a plurality of LED lamps according to the testing result of checkout gear 200.Led driver is used for regulating according to the control signal of controller the dutycycle of the pulse width modulation (PWM) of each LED lamp of input.
In a preferred embodiment of the invention; It is the 16 passage constant current sink formula LED chip for driving of TLC59116 that led driver adopts the model of TI company of Texas Instrument; It is the single-chip microcomputer of S3F9488 that controller adopts the model of Samsung; As shown in Figure 4, be the illuminator drive part sketch map of the embodiment of the invention, the input SDA of TLC59116 is connected with the output of single-chip microcomputer S3F9488 with SCL.Certainly also need to prove at this; These concrete models are preferred version of the present invention; Those skilled in the art also can select the chip of chip or the other types of other models to realize the structure of illuminator shown in Figure 1, and these all should be included within protection scope of the present invention.
Wherein the TLC59116 of TI company is 16 channel LED chip for driving of the total line traffic control of I2C, and each LED output all has 8 bit resolutions (256 color range), fixed frequency, independent PWM controller (operating frequency is 97kHz) and the scalable dutycycle (0% to 99.6%) of self.Single-chip microcomputer just can be set to specific brightness value by each LED lamp through independent PWM controller like this.
Certainly this led driver also can adopt 8 bit resolutions (256 color range) combined type PWM controller, and single-chip microcomputer can carry out Synchronization Control to all LED lamps through combined type PWM controller, promptly adopts identical value to lighten or dim all LED.This combined type PWM controller had both had the fixed frequency of 190Hz, had the scalable frequency (whenever regulating once at a distance from 10.73 seconds) and the scalable dutycycle (0% to 99.6%) that are low to moderate 24Hz again.
Like this through single-chip microcomputer to the control of LED chip for driving, particularly realize that through the PWM pulsewidth modulation LED shows different brightness levels, thus thereby gradually bright and gradually go out at closing time when the brightness degree further through control LED lamp makes that the refrigerating chamber lamp opens the door.
For example, if the output pin to certain LED lamp is 0 (exporting 0 o'clock LED-backlit plate here lights) in the cycle of certain length always, then this moment, the LED lamp was the brightest; On the contrary, if export 1 always, then the LED lamp is the darkest (just not working).If this internal pin output in cycle be impulse wave (10101010......), then the brightness of LED lamp just has only half the when the brightest, but this impulse wave frequency need be than higher, otherwise will cause the flicker of LED lamp.Therefore, in an embodiment of the present invention, just can regulate the time of TLC59116 pin output high-low level through the dutycycle of the program in the single-chip microcomputer at switch chamber door time control system conversion PWM, thus realization LED lamp gradually bright or gradually go out.For example, after refrigerator doors was unlocked, the dutycycle that single-chip microcomputer is transferred big PWM ripple gradually according to predetermined step-length to lighten the LED lamp, reached the maximum of setting until dutycycle; Equally, also can turn the dutycycle of PWM ripple gradually down,, reach the minimum of a value of setting until dutycycle to dim the LED lamp according to predetermined step-length.
Although illustrated and described embodiments of the invention; For those of ordinary skill in the art; Be appreciated that under the situation that does not break away from principle of the present invention and spirit and can carry out multiple variation, modification, replacement and modification that scope of the present invention is accompanying claims and be equal to and limit to these embodiment.
Claims (5)
1. the illuminator of a refrigerator is characterized in that, comprising:
The lamp assembly, said lamp assembly comprises:
Lamp socket,
Be installed in the lamp plate on the said lamp socket, said lamp plate comprise a plurality of LED lamps of being positioned on the said lamp plate and arranging with the starlight mode of the imitative night sky and
Cooperate the lampshade of installing with said lamp socket, be provided with a plurality of leaded light grooves on the said lampshade;
Checkout gear, whether said checkout gear detection refrigerator doors is unlocked or closes; With
Control device; Said control device links to each other with said checkout gear with said lamp assembly respectively; Said control device is controlled each LED lamp in the said lamp assembly according to the testing result of said checkout gear; So that the LED lamp of a part of LED lamp in said a plurality of LED lamp and other parts is lighted and is extinguished asynchronously,, said refrigerator doors lightens said each LED lamp when being unlocked gradually, and the variation of said each LED lamp of Sustainable Control is to cause the effect of starry sky illumination in the process that said refrigerator doors is opened;, said refrigerator doors extinguishes said each LED lamp when being closed gradually
Wherein, said control device comprises:
Controller, said controller generates the control signal to said a plurality of LED lamps according to the testing result of said checkout gear; With
Led driver is used for the dutycycle according to the pulse width modulation (PWM) of said each LED lamp of control signal adjusting input.
2. the illuminator of refrigerator as claimed in claim 1 is characterized in that, said lamp socket is installed in the top of refrigerating chamber.
3. the illuminator of refrigerator as claimed in claim 1 is characterized in that, said led driver comprises that the model of TI company of Texas Instrument is the LED chip for driving of TLC59116.
4. the illuminator of refrigerator as claimed in claim 1 is characterized in that, said controller comprises that the model of Samsung is the single-chip microcomputer of S3F9488.
5. the illuminator of refrigerator as claimed in claim 1 is characterized in that, said controller is regulated the dutycycle of said led driver output according to predetermined step-length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102175604A CN101881548B (en) | 2010-07-01 | 2010-07-01 | Illumination system of icebox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102175604A CN101881548B (en) | 2010-07-01 | 2010-07-01 | Illumination system of icebox |
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| Publication Number | Publication Date |
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| CN101881548A CN101881548A (en) | 2010-11-10 |
| CN101881548B true CN101881548B (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102175604A Active CN101881548B (en) | 2010-07-01 | 2010-07-01 | Illumination system of icebox |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102548084B (en) * | 2010-12-07 | 2015-02-18 | 泰州乐金电子冷机有限公司 | Device and method for controlling light source in gradual brightness change manner |
| DE102014101306A1 (en) * | 2014-02-03 | 2015-08-06 | Rational Aktiengesellschaft | Method for controlling a lighting and cooking appliance |
| JP6835494B2 (en) * | 2016-07-13 | 2021-02-24 | 株式会社東芝 | Storage and near-infrared light irradiation unit |
| DE102017002302A1 (en) * | 2016-11-30 | 2018-05-30 | Liebherr-Hausgeräte Ochsenhausen GmbH | Fridge and / or freezer |
| CN107507535A (en) * | 2017-10-19 | 2017-12-22 | 佛山市南海区广工大数控装备协同创新研究院 | A kind of striation shape code advertising lamp box based on machine vision |
| CN108645111A (en) * | 2018-08-13 | 2018-10-12 | 长虹美菱股份有限公司 | A kind of refrigerator lighting structure |
| CN113494810B (en) * | 2020-04-01 | 2022-09-23 | 青岛海尔电冰箱有限公司 | Refrigerating and freezing device and illumination control method thereof |
| CN115507585A (en) * | 2021-06-23 | 2022-12-23 | 重庆海尔制冷电器有限公司 | Refrigerator operation control method |
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| CN101046348A (en) * | 2007-04-30 | 2007-10-03 | 广东科龙电器股份有限公司 | Preserving equipment with composited color light and its control method |
| CN101231126A (en) * | 2007-01-24 | 2008-07-30 | 泰州乐金电子冷机有限公司 | Device for regulating illumination of refrigerator |
| CN101438908A (en) * | 2007-11-22 | 2009-05-27 | 三洋电机株式会社 | Showcase |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003045690A (en) * | 2001-07-26 | 2003-02-14 | Matsushita Electric Works Ltd | Lighting system |
| JP2007127384A (en) * | 2005-11-07 | 2007-05-24 | Toshiba Corp | Refrigerator |
| JP5114915B2 (en) * | 2006-10-05 | 2013-01-09 | パナソニック株式会社 | refrigerator |
| KR100867465B1 (en) * | 2007-05-23 | 2008-11-06 | 엘지전자 주식회사 | Refrigerator |
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- 2010-07-01 CN CN2010102175604A patent/CN101881548B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101231126A (en) * | 2007-01-24 | 2008-07-30 | 泰州乐金电子冷机有限公司 | Device for regulating illumination of refrigerator |
| CN101046348A (en) * | 2007-04-30 | 2007-10-03 | 广东科龙电器股份有限公司 | Preserving equipment with composited color light and its control method |
| CN101438908A (en) * | 2007-11-22 | 2009-05-27 | 三洋电机株式会社 | Showcase |
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| CN101881548A (en) | 2010-11-10 |
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| C14 | Grant of patent or utility model | ||
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| C56 | Change in the name or address of the patentee |
Owner name: HEFEI MIDEA REFRIGERATOR CO., LTD. Free format text: FORMER NAME: HEFEI MEDIA RONGSHIDA REFRIGERATOR CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Hefei Changjiang Road, Anhui, No. 669 Patentee after: Hefei Midea Refrigerator Co., Ltd. Patentee after: Hefei Hualing Co., Ltd. Address before: 230601 Hefei Changjiang Road, Anhui, No. 669 Patentee before: Hefei Media Rongshida Refrigerator Co., Ltd. Patentee before: Hefei Hualing Co., Ltd. |