CN203467038U - Refrigerator light source adjusting device - Google Patents
Refrigerator light source adjusting device Download PDFInfo
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- CN203467038U CN203467038U CN201320591501.2U CN201320591501U CN203467038U CN 203467038 U CN203467038 U CN 203467038U CN 201320591501 U CN201320591501 U CN 201320591501U CN 203467038 U CN203467038 U CN 203467038U
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- light source
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- brightness
- main light
- drive circuit
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Abstract
The utility model relates to a refrigerator light source adjusting device which comprises a main light source, a controller and an environment light sensor. The controller is connected with the signal output end of the environment light sensor. The controller is connected with the main light source through a main light source driving circuit. The controller controls the output voltage of the main light source driving circuit through the environmental light brightness detected by the environment light sensor and controls the brightness of the main light source. According to the refrigerator light source adjusting device, through setting the environment light sensor, the surrounding environment light brightness is automatically recognized, the brightness of the light source in a refrigerator is automatically adjusted according to the environment light brightness, the light source is not dazzling, and a comfortable luminous effect is provided for a user.
Description
Technical field
The utility model relates to a kind of light source regulating device, particularly a kind of refrigerator light source regulating device.
Background technology
Existing refrigerator light source igniting mode is when refrigerator open, and the two ends of light source add rated voltage and maintain this voltage and remain unchanged, and show above light source and with certain brightness, remain unchanged immediately for light source.There are some problems in this working method, under dark environment, light source is lighted human eye is had to injury suddenly; Under different environment, human eye is also different to the adaptive capacity of brightness, if light with identical brightness, can cause that vision is uncomfortable; Under varying environment, user takes the time possibility difference that thing takies, and the report prompting start time point that opens the door is also answered difference; In the position away from light source, particularly food, stop while causing user's access food, have the main light source inadequate problem of illumination at a distance.
As applied for before and disclosed patent, application number is 201220673067.8, and name is called the gradual change light LED illuminator in refrigerator, and the technical scheme of this piece of patent is: a LED lighting lamp group, is to be rearranged by a plurality of LED lamps, or is LED area source; One door switch, is arranged between casing and door body, when refrigerator doors is opened, connects, and when refrigerator doors is closed, cuts off; One main circuit board, main circuit board is electrically connected to LED lighting lamp group and door switch respectively by wire, according to the variation output of the on off operating mode of door switch by the direct voltage of setting rule and changing, the light that makes LED lighting lamp group by secretly to bright or by bright to secretly gradually changing.This piece of patent is by PWM mode regulation output voltage, thereby control light source brightens gradually or be dimmed, but this piece of patent do not have solution under varying environment brightness, if light with identical light-source brightness, can cause the uncomfortable problem of vision.
Utility model content
The utility model main purpose is to address the above problem and is not enough, and a kind of refrigerator light source regulating device of automatically adjusting refrigerator light-source brightness according to environment bright difference is provided.
For achieving the above object, the technical solution of the utility model is:
A kind of refrigerator light source regulating device, comprise main light source, controller and ambient light sensor, described controller is connected with the signal output part of described ambient light sensor, described controller is connected with described main light source by main light source drive circuit, the environmental light brightness that described controller detects by described ambient light sensor is controlled the output voltage of described main light source drive circuit, controls the brightness of described main light source.
Further, the pwm signal output of described controller connects described main light source drive circuit, and described main light source drive circuit connects main light source, and described controller is recently controlled the output voltage of described main light source drive circuit by setting the duty of pwm signal high level.
Further, also comprise range sensor and secondary light source, described range sensor is arranged on by described secondary light source, and the signal output part of described range sensor connects described controller, described controller connects secondary light source drive circuit, and described secondary light source drive circuit connects described secondary light source.
Further, main light source is arranged on inner container of icebox top or top, and described secondary light source is arranged on inner container of icebox bottom or bottom.
Further, controller connects for pointing out the door-closing reminder of cutting out chamber door by cutting out light source, and the environmental light brightness that described controller detects by described ambient light sensor is controlled the beginning prompt time of described door-closing reminder.
Content to sum up, a kind of refrigerator light source regulating device described in the utility model, tool has the following advantages:
1,, by ambient light sensor is set, identification environmental light brightness around, adjusts the brightness of refrigerator inner light source automatically according to environmental light brightness automatically, not dazzling, offers the comfortable illumination effect of user.
2, range sensor and secondary light source are set, at food, be placed on the place away from main light source, in the inadequate situation of illumination, user is when taking food, range sensor senses staff, the signal that range sensor sends is to controller, and controller makes secondary light source luminous, facilitates user's food of taking.
3, when surrounding environment is darker, by ambient light sensor testing environment brightness and transmit signals to controller, controller is controlled the prompt system time delay prompting of closing the door, and makes user under darker environment, still have the food of taking of longer time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model main light source drive circuit circuit diagram.
As depicted in figs. 1 and 2, controller 1, ambient light sensor 2, range sensor 3, door switch testing circuit 4, main light source drive circuit 5, secondary light source drive circuit 6, main light source 7, secondary light source 8.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
As shown in Figure 1, a kind of refrigerator light source regulating device, for the adjusting of refrigerator inner light source, gives user with better use impression.
Light source regulating device mainly comprises controller 1, ambient light sensor 2, range sensor 3, main light source 7 and the secondary light source 8 of refrigerator.Controller 1 is for the control to each system of refrigerator, and controller 1 can send pwm signal square-wave pulse.
Ambient light sensor 2 is for detection of, identification refrigerator environmental light brightness around, be arranged on outside door of refrigerator or casing, the signal output part of ambient light sensor 2 connects controller 1, ambient light sensor 2 by the environmental light brightness communication detecting in controller 1.The pwm signal output of controller 1 is connected with main light source drive circuit 5, and main light source drive circuit 5 connects main light sources 7, and main light source drive circuit 5 provides electric power for main light source 7.
As shown in Figure 2, main light source drive circuit 5 comprises resistance R 1, resistance R 2, resistance R 3, triode Q1, triode Q2, diode D1, diode D2, triode Q1 grid is connected with the pwm signal output of controller 1 by resistance R 1, triode Q1 grounded emitter, collector electrode is connected power supply by resistance R 2 with resistance R 3, the common port of triode Q2 grid contact resistance R2 and resistance R 3, the emitter of triode Q2 connects power supply, collector electrode connects main light source 7, diode D1 negative electrode connects power supply, anodic bonding diode D2 negative electrode, diode D2 plus earth.
The pwm signal that triode Q1 sends by controller 1 carrys out break-make, realizes the variation of main light source control circuit 5 output voltages.Diode D1 and diode D2 play a protective role.
Controller 1 can be controlled the output voltage size of main light source drive circuit 5, thereby controls the brightness of main light source 7; The output voltage that can also control main light source drive circuit 5 gradually changes, and the brightness of main light source 7 is brightened gradually or dimmed gradually.Controller 1 is by regulating the duty ratio of pwm signal high level, and the high level duty that progressively increases or reduce pwm signal is recently realized above-mentioned two functions.
Controller 1 program is set, and controller 1, by the signal of environment of accepting optical sensor 2 transmission, judges and determines the duty ratio size of the required pwm signal high level sending.For example, when night, it is very low that ambient light sensor 2 detects ambient light brightness, transmit signals to controller 1, controller 1 judgement environmental light brightness is low, the high level duty ratio that definite output is less, controller 1 is exported the smaller pwm signal of high level duty to main light source drive circuit 5, as the duty ratio high level pwm signal that is 30%, the pwm signal break-make that triode Q1 sends according to controller 1, forces down the average electrical of main light source drive circuit 5, and the brightness of main light source 7 is low, when night, can not cause because main light source 7 is excessively bright user's visual discomfort sense.And for example, in the time of by day, it is brighter that ambient light sensor 2 detects ambient light brightness, transmit signals to controller 1, controller 1 judgement environmental light brightness is high, the high level duty ratio that definite output is larger, the larger pwm signal of controller 1 output high level duty ratio is to main light source drive circuit 5, as the duty ratio high level pwm signal that is 80%, the pwm signal break-make that triode Q1 sends according to controller 1, make the average voltage of main light source drive circuit 5 high, the brightness of main light source 7 is high, can not cause between surround lighting and main light source 7 light and shade contrast excessive.
The ambient light intensity that the size of the pwm signal high level duty ratio that controller 1 sends detects according to ambient light sensor 2 is set, and different surround lightings is corresponding from different high level duty ratios, can carry out refinement.
Controller 1, after definite pwm signal high level duty ratio size, can progressively promote high level duty ratio within a certain period of time, until arrive determined duty ratio size, main light source 7 is brightened gradually; Contrary, when main light source 7 need to be closed, controller 1 also can progressively diminish high level duty ratio, makes main light source 7 dimmed gradually.Light source brightens gradually or is dimmed gradually, has solved the procedure of adaptation problem of human eye to light, makes user can not feel dazzling, provides better user to experience.
Due to the spatial relation of inner container of icebox, and in the situation that food is placed too much or is more mixed and disorderly, user is when taking from main light source 7 food away from, and the brightness of main light source 7 is inadequate, causes user when taking food, to produce certain difficulty.Away from main light source 7 or main light source 7 illumination less than place, secondary light source 8 is set, in the present embodiment, adopt main light source 7 to be arranged on inner bag top, secondary light source 8 is arranged on the scheme of inner bag bottom, on secondary light source 8 sides, a range sensor 3 is set, the signal output part of range sensor 3 connects controller 1, controller 1 connects secondary light source drive circuit 6, and secondary light source drive circuit 6 connects secondary light source 8, is secondary light source 8 power supplies.
When user takes near food secondary light source 8, people's hand can be near range sensor 3, it is close that range sensor 3 detects people's hand, transmit a signal to controller 1, controller 1 is controlled secondary light source drive circuit 6, secondary light source drive circuit 6 is opened secondary light source 8, for user provides light.By range sensor 3 and secondary light source 8, make user can take easily main light source 7 irradiate less than locational food, improved product quality, be user-friendly to.
Controller 1 can be controlled the output voltage size of secondary light source drive circuit 6, thereby controls the brightness of secondary light source 8; The output voltage that can also control secondary light source drive circuit 6 gradually changes, and the brightness of secondary light source 8 is brightened gradually or dimmed gradually.Control mode is identical with the control mode of above-mentioned main light source 7, secondary light source drive circuit 6 is also also identical in parts and connected mode with main light source drive circuit 5, by ambient light sensor 2, detect ambient light intensity, controller 1 is determined output pwm signal high level duty ratio size, realizes the brightness that automatically changes secondary light source 8; Controller 1 increases gradually or reduces high level duty ratio, controls that secondary light source 8 brightens gradually or dimmed.
It should be noted that, main light source 7 recited above is opened automatically for door of refrigerator unlatching is rear, secondary light source 8 is by the trigger equipment of separately establishing, by range sensor 3, open, its opening ways is different, but the utility model light source brightens gradually or is dimmed, and regulate the function of final light-source brightness all applicable to these two kinds of light sources, and control method is also identical, be that in refrigerator, the light source of different opening ways all can be used light source adjustment method described in the utility model, reach that light source brightens gradually or dimmed, and the effect that regulates final light-source brightness, be not limited to chamber door and open and the automatic main light source 7 of opening.
Door switch testing circuit 4, for detection of the state of door of refrigerator opening and closing, is connected with controller 1.When chamber door is opened, door switch testing circuit 4 transmits a signal to controller 1, and controller 1 is controlled main light source 7 and lighted gradually by mode described above, and controls the final brightness of main light source 7; When chamber door is closed, door switch testing circuit 4 transmits a signal to controller 1, and it is dimmed gradually that controller 1 is controlled main light source 7.
When controller 1 is detected chamber door and opened over certain hour by door switch testing circuit 4, controller 1 controls door-closing reminder in refrigerator and points out and cut out chamber door.First controller 1 controls main light source 7 flickers, if chamber door continues to open, and surpasses certain hour, and it is dimmed gradually by control mode recited above that controller 1 is controlled main light source 7, and open audible alarm, and prompting user closes chamber door.
Due to different ambient brightnesss, user's service speed is different, and the environmental light brightness that controller 1 detects according to ambient light sensor 2 is controlled or the prompt time of definite door-closing reminder.For example, in night, it is low that controller 1 detects environmental light brightness by ambient light sensor 2, and controller 1 extends prompt time, makes user in the situation that environmental light brightness is lower, has the food of taking of more time.
A light source adjustment method of applying above-mentioned refrigerator light source regulating device, comprises the steps:
Step 1, ambient light sensor 2 detects refrigerator surrounding environment brightness, by signal output part, surrounding environment light intensity signal is fed back to controller 1.
Step 2, the environmental light brightness information that controller 1 feeds back according to ambient light sensor 2, controls the brightness of main light source 7.Different environmental light brightness is corresponding with the numerical values recited of pwm signal high level duty ratio, be set in the chip of controller 1, controller 1 is determined according to different environmental light brightness, in this environmental light brightness situation, needs the concrete numerical value of the pwm signal high level duty ratio of output.
The numerical values recited of pwm signal high level duty ratio is along with environmental light brightness strengthens and increases, and when environmental light brightness is stronger, pwm signal high level duty ratio is larger; When environmental light brightness is weak, pwm signal high level duty is smaller.Controller 1 is transferred to main light source drive circuit 5 by the pwm signal of definite high level duty ratio, the triode Q1 of main power source drive circuit 5 is according to pwm signal break-make, make controller 1 control the output voltage of main light source drive circuit 5, thereby control the brightness of main light source 7.
A kind of refrigerator light source regulating device described in the utility model, by automatically regulate the brightness of refrigerator inner light source with environmental light brightness, and arranges secondary light source 8, has improved product quality, for user has brought better experience.
As mentioned above, given scheme content, can derive similar technical scheme by reference to the accompanying drawings.In every case be the content that does not depart from technical solutions of the utility model, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present utility model, all still belong in the scope of technical solutions of the utility model.
Claims (5)
1. a refrigerator light source regulating device, it is characterized in that: comprise main light source, controller and ambient light sensor, described controller is connected with the signal output part of described ambient light sensor, described controller is connected with described main light source by main light source drive circuit, the environmental light brightness that described controller detects by described ambient light sensor is controlled the output voltage of described main light source drive circuit, controls the brightness of described main light source.
2. a kind of refrigerator light source regulating device according to claim 1, it is characterized in that: the pwm signal output of described controller connects described main light source drive circuit, described main light source drive circuit connects main light source, and described controller is recently controlled the output voltage of described main light source drive circuit by setting the duty of pwm signal high level.
3. a kind of refrigerator light source regulating device according to claim 1, it is characterized in that: also comprise range sensor and secondary light source, described range sensor is arranged on by described secondary light source, the signal output part of described range sensor connects described controller, described controller connects secondary light source drive circuit, and described secondary light source drive circuit connects described secondary light source.
4. a kind of refrigerator light source regulating device according to claim 3, is characterized in that: described main light source is arranged on inner container of icebox top or top, and described secondary light source is arranged on inner container of icebox bottom or bottom.
5. a kind of refrigerator light source regulating device according to claim 1, it is characterized in that: described controller connects for pointing out the door-closing reminder of cutting out chamber door by cutting out light source, and the environmental light brightness that described controller detects by described ambient light sensor is controlled the beginning prompt time of described door-closing reminder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320591501.2U CN203467038U (en) | 2013-09-24 | 2013-09-24 | Refrigerator light source adjusting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591501.2U CN203467038U (en) | 2013-09-24 | 2013-09-24 | Refrigerator light source adjusting device |
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| CN203467038U true CN203467038U (en) | 2014-03-05 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103955052A (en) * | 2014-05-06 | 2014-07-30 | 深圳市道通科技有限公司 | Automatic adjusting method and device for industrial endoscope illumination |
| CN104812129A (en) * | 2015-03-26 | 2015-07-29 | 广东美的厨房电器制造有限公司 | Control system and method for household electrical appliance |
| CN105135811A (en) * | 2015-07-10 | 2015-12-09 | 合肥美的电冰箱有限公司 | Refrigerator and lighting device for refrigerator |
| CN105208754A (en) * | 2015-10-30 | 2015-12-30 | 合肥晶弘三菱电机家电技术开发有限公司 | Control method and drive circuit of LED illuminating lamp for refrigerators |
| CN106133466A (en) * | 2014-03-27 | 2016-11-16 | Bsh家用电器有限公司 | There is the Domestic refrigerator of inner lighting system and for the method operating the inner lighting system of Domestic refrigerator |
| CN106257223A (en) * | 2015-06-18 | 2016-12-28 | 东部大宇电子株式会社 | For controlling device and the method for refrigerator according to ambient brightness |
| CN108266937A (en) * | 2017-10-23 | 2018-07-10 | 中科美菱低温科技股份有限公司 | A kind of superfreeze storage bin with lighting system |
| CN111181642A (en) * | 2020-02-17 | 2020-05-19 | 海信（山东）冰箱有限公司 | Refrigerator and optical signal transmission system thereof |
| CN111315069A (en) * | 2020-02-24 | 2020-06-19 | 海信容声(广东)冰箱有限公司 | Wine cabinet, illumination control method and illumination control system for wine cabinet |
| CN111536752A (en) * | 2020-05-08 | 2020-08-14 | 珠海格力电器股份有限公司 | Control device of indicator light, electrical equipment and control method of indicator light |
| 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 |
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2013
- 2013-09-24 CN CN201320591501.2U patent/CN203467038U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106133466A (en) * | 2014-03-27 | 2016-11-16 | Bsh家用电器有限公司 | There is the Domestic refrigerator of inner lighting system and for the method operating the inner lighting system of Domestic refrigerator |
| CN103955052A (en) * | 2014-05-06 | 2014-07-30 | 深圳市道通科技有限公司 | Automatic adjusting method and device for industrial endoscope illumination |
| CN104812129A (en) * | 2015-03-26 | 2015-07-29 | 广东美的厨房电器制造有限公司 | Control system and method for household electrical appliance |
| CN106257223A (en) * | 2015-06-18 | 2016-12-28 | 东部大宇电子株式会社 | For controlling device and the method for refrigerator according to ambient brightness |
| CN105135811A (en) * | 2015-07-10 | 2015-12-09 | 合肥美的电冰箱有限公司 | Refrigerator and lighting device for refrigerator |
| CN105208754A (en) * | 2015-10-30 | 2015-12-30 | 合肥晶弘三菱电机家电技术开发有限公司 | Control method and drive circuit of LED illuminating lamp for refrigerators |
| CN108266937A (en) * | 2017-10-23 | 2018-07-10 | 中科美菱低温科技股份有限公司 | A kind of superfreeze storage bin with lighting system |
| CN111181642A (en) * | 2020-02-17 | 2020-05-19 | 海信（山东）冰箱有限公司 | Refrigerator and optical signal transmission system thereof |
| CN111315069A (en) * | 2020-02-24 | 2020-06-19 | 海信容声(广东)冰箱有限公司 | Wine cabinet, illumination control method and illumination control system for wine cabinet |
| 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 |
| CN111536752A (en) * | 2020-05-08 | 2020-08-14 | 珠海格力电器股份有限公司 | Control device of indicator light, electrical equipment and control method of indicator light |
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