CN101881548A - Illumination system of icebox - Google Patents
Illumination system of icebox Download PDFInfo
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- CN101881548A CN101881548A CN 201010217560 CN201010217560A CN101881548A CN 101881548 A CN101881548 A CN 101881548A CN 201010217560 CN201010217560 CN 201010217560 CN 201010217560 A CN201010217560 A CN 201010217560A CN 101881548 A CN101881548 A CN 101881548A
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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, usually adopt incandescent lamp or the LED lamp throws light in the illuminator of cold compartment of refrigerator, but the mode of illumination being all more single, substantially all is that to open the door be that lamp is bright, and lamp goes out at closing time, therefore lacks to change.Along with improving constantly of people's living standard, single like this illumination can not better meet growing demand, therefore need improve illuminator.
Summary of the invention
Purpose of the present 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, described lamp assembly comprise a plurality of LED lamps of arranging in a predefined manner; Checkout gear, whether described checkout gear detection refrigerator doors is unlocked or closes; And control device, described control device links to each other with described checkout gear with described lamp assembly respectively, described control device is controlled each LED lamp in the described lamp assembly according to the testing result of described checkout gear, when described refrigerator doors is unlocked, lightening described each LED lamp gradually, and when being closed, described refrigerator doors extinguishes described each LED lamp gradually.
The present invention is by the control of control device to the lamp assembly, makes each LED lamp in the lamp assembly light gradually or extinguish, thereby produces the effect that is similar to night sky starlight, 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 by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and 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 schematic diagram that Fig. 3 arranges in 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 schematic diagram of the embodiment of the invention.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described 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.Below by the embodiment that is described with reference to the drawings is exemplary, only is 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, lightening each LED lamp gradually when refrigerator doors is unlocked, and extinguishes each LED lamp gradually when refrigerator doors is closed.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 that are positioned on the lamp plate 120 and arrange in a predefined manner and the lampshade 130 that cooperates 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 in the starlight mode of the imitative night sky.As shown in Figure 3, be the schematic diagram that a plurality of LED lamps 140 of the embodiment of the invention are arranged in 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 by 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 by PWM, by 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 of LED lamp is closely bound up with the electric current of flowing through as can be seen, 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 highlighted LED lamp of several random arrangements to each LED lamp, 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, and 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 described 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 by Fig. 1 makes the light of refrigerator finish under the control of control device 300 by bright deepening or by gradually changing of secretly brightening, 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 by 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, for example control device 300 is opened whole LED lamps step by step, and each LED lamp of the size of the dutycycle by 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 embodiments of the invention, control device 300 comprises controller and led driver.Controller generates 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 driving chip 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 schematic diagram 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 the chip of other models or other types 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 the 16 channel LEDs driving chip of the total line traffic control of I2C, and each LED output all has 8 bit resolutions (256 color range), fixed frequency, the independent PWM controller (operating frequency is 97kHz) of self and can regulate dutycycle (0% to 99.6%).Single-chip microcomputer just can be set to specific brightness value by each LED lamp by 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 by 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, but had the regulating frequency (regulating once every 10.73 seconds) that is low to moderate 24Hz again and can regulate dutycycle (0% to 99.6%).
By single-chip microcomputer LED is driven the control of chip like this, particularly realize that by the PWM pulsewidth modulation LED shows different brightness degrees, thus thereby it is gradually bright and gradually go out at closing time when the brightness degree further by 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 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 by 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 the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification that scope of the present invention is by claims and be equal to and limit to these embodiment.
Claims (11)
1. the illuminator of a refrigerator is characterized in that, comprising:
Lamp assembly, described lamp assembly comprise a plurality of LED lamps of arranging in a predefined manner;
Checkout gear, whether described checkout gear detection refrigerator doors is unlocked or closes; With
Control device, described control device links to each other with described checkout gear with described lamp assembly respectively, described control device is controlled each LED lamp in the described lamp assembly according to the testing result of described checkout gear, when described refrigerator doors is unlocked, lightening described each LED lamp gradually, and when being closed, described refrigerator doors extinguishes described each LED lamp gradually.
2. the illuminator of refrigerator as claimed in claim 1 is characterized in that, described lamp assembly comprises:
Lamp socket;
Be installed in the lamp plate on the described lamp socket, described lamp plate comprises a plurality of LED lamps that are positioned on the described lamp plate and arrange in a predefined manner; With
Cooperate the lampshade of installing with described lamp socket.
3. the illuminator of refrigerator as claimed in claim 2 is characterized in that, described lamp socket is installed in the top of refrigerating chamber.
4. the illuminator of refrigerator as claimed in claim 2 is characterized in that, described a plurality of LED lamps are arranged in the starlight mode of the imitative night sky, and are provided with a plurality of leaded light grooves on described lampshade.
5. the illuminator of refrigerator as claimed in claim 4 is characterized in that, described control device is controlled the brightness of described a plurality of LED lamps in a synchronous manner.
6. the illuminator of refrigerator as claimed in claim 5 is characterized in that, the LED lamp that described control device is controlled a part of LED lamp in described a plurality of LED lamp and other parts light with extinguish asynchronous.
7. the illuminator of refrigerator as claimed in claim 6 is characterized in that, in the process that described refrigerator doors is opened, the variation of described each LED lamp of described control device Sustainable Control is to cause the effect of starry sky illumination.
8. as the illuminator of each described refrigerator of claim 1-7, it is characterized in that described control device comprises:
Controller, described controller generates control signal to described a plurality of LED lamps according to the testing result of described checkout gear; With
Led driver is used for the dutycycle according to the pulse width modulation (PWM) of described each LED lamp of control signal adjusting input.
9. the illuminator of refrigerator as claimed in claim 8 is characterized in that, described led driver comprises that the model of TI company of Texas Instrument is the LED driving chip of TLC59116.
10. the illuminator of refrigerator as claimed in claim 9 is characterized in that, described controller comprises that the model of Samsung is the single-chip microcomputer of S3F9488.
11. the illuminator of refrigerator as claimed in claim 8 is characterized in that, described controller is regulated the dutycycle of described 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 true CN101881548A (en) | 2010-11-10 |
| CN101881548B 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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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102548084A (en) * | 2010-12-07 | 2012-07-04 | 泰州乐金电子冷机有限公司 | Device and method for controlling light source in gradual brightness change manner |
| CN104814669A (en) * | 2014-02-03 | 2015-08-05 | 乐信股份公司 | Method for controlling lighting and cooking appliance |
| 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 |
| CN107616006A (en) * | 2016-07-13 | 2018-01-23 | 株式会社东芝 | Bunker and near infrared light unit |
| CN108645111A (en) * | 2018-08-13 | 2018-10-12 | 长虹美菱股份有限公司 | A kind of refrigerator lighting structure |
| CN110036251A (en) * | 2016-11-30 | 2019-07-19 | 利勃海尔-家用电器奥克森豪森有限责任公司 | Refrigeration and/or refrigerating plant |
| CN113494810A (en) * | 2020-04-01 | 2021-10-12 | 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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| 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 |
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| 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 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102548084A (en) * | 2010-12-07 | 2012-07-04 | 泰州乐金电子冷机有限公司 | Device and method for controlling light source in gradual brightness change manner |
| 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 |
| CN104814669A (en) * | 2014-02-03 | 2015-08-05 | 乐信股份公司 | Method for controlling lighting and cooking appliance |
| CN107616006A (en) * | 2016-07-13 | 2018-01-23 | 株式会社东芝 | Bunker and near infrared light unit |
| CN110036251A (en) * | 2016-11-30 | 2019-07-19 | 利勃海尔-家用电器奥克森豪森有限责任公司 | Refrigeration and/or refrigerating plant |
| 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 |
| CN113494810A (en) * | 2020-04-01 | 2021-10-12 | 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 |
Also Published As
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|---|---|
| CN101881548B (en) | 2012-11-28 |
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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. |