CN203015241U - Stroboflash-free LED desk lamp having storage function - Google Patents
Stroboflash-free LED desk lamp having storage function Download PDFInfo
- Publication number
- CN203015241U CN203015241U CN201320034458XU CN201320034458U CN203015241U CN 203015241 U CN203015241 U CN 203015241U CN 201320034458X U CN201320034458X U CN 201320034458XU CN 201320034458 U CN201320034458 U CN 201320034458U CN 203015241 U CN203015241 U CN 203015241U
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- China
- Prior art keywords
- desk lamp
- memory function
- control chip
- led desk
- main control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a stroboflash-free LED desk lamp having a storage function. The desk lamp comprises a lamp body which is internally equipped with a master control chip having a power supply interface. An input terminal of the master control chip is connected with a clock module having a storage function and a parameter setting module used for setting desk lamp time parameters. An output terminal of the master control chip is connected with an LED illuminator through a constant current source circuit. The stroboflash-free LED desk lamp is provided with the clock module having the storage function, thereby being very convenient as the parameters are guaranteed not to be lost in the case of power failures and do not need to be reset in the case of later power-on utilization; the stroboflash-free LED desk lamp generates no stroboflash or electromagnetic radiation in the utilization process, thereby being more comfortable and healthy to use; and the desk lamp is provided with the parameter setting module having different functions, thereby being beneficial for setting the various parameters, such as resting time prompting, alarm clock, time, and calendar, and being more convenient to use.
Description
Technical field
The utility model relates to a kind of LED desk lamp that uses in work or when study, particularly a kind of with memory function without stroboscopic LED desk lamp.
Background technology
Mostly existing common desk lamp is high-frequency florescent lamp, although naked eyes imperceptible stroboscopic.But it has produced " high-frequency electromagnetic wave excitation " more more harmful than stroboscopic.Although bright and clear, stable, " but stroboscopic radiation " gives consumer's the healthy serious harm of having taken, because " stroboscopic radiation " be cannot see, be can not touch, do not measure by the inspection of professional test instrument, so this fact has been concealed in light fixture enterprise, put consumer's physical and mental health and ignore, that is to say that in the market surpassing at least 95% eye-protecting lamp has " stroboscopic radiation " harm.
Producer passes through high-frequency electronic ballast, common stroboscopic frequency is brought up to 3-5 ten thousand times, but stroboscopic is higher, just may discharge the electromagenetic wave radiation more much better than than the electromagnetic radiation of mobile phone during its ballast work, directly cerebral nerve be impacted, lengthen along with the user uses the fluorescent desk lamp time, can occur having a dizzy spell, tired out weak from head to foot, long-time brain will suffer damage, especially to just larger in developmental teen-age physical and mental health, eyesight influence.
And the LED intelligent desk lamp on the existing market is without memory function, after outage, setly all can lose about parameters such as time, alarm clock, calendar or study reminder times, and when energising is used next time, must Reparametrization, very inconvenient.
The utility model content
The purpose of this utility model is, provide a kind of with memory function without stroboscopic LED desk lamp.This LED desk lamp can also be in the situation that set parameter be preserved in outage without stroboscopic, radiationless.
The technical solution of the utility model: a kind of with memory function without stroboscopic LED desk lamp, comprise lamp body, be provided with the main control chip of charged interface in lamp body, the parameter that the input of main control chip is connected with clock module with memory function, be used for arranging the desk lamp parameter arranges module, and the output of main control chip connects the LED luminous element by constant-current source circuit.
Aforesaid with memory function without in stroboscopic LED desk lamp, described main control chip is connected with the light modulation input module for the slip light modulation.The user is the suitable brightness of free adjustment as required, increases the comfort of using.
Aforesaid with memory function without in stroboscopic LED desk lamp, described light modulation input module is the slidingtype touch key-press.
Aforesaid with memory function without in stroboscopic LED desk lamp, described main control chip is single-chip microcomputer.
Aforesaid with memory function without in stroboscopic LED desk lamp, described parameter arranges module for several complete respectively the capacitance type touch key of difference in functionality.
Aforesaid with memory function without in stroboscopic LED desk lamp, described clock module is real-time timepiece chip.
Aforesaid with memory function without in stroboscopic LED desk lamp, described main control chip interface is connected be used to the display module that shows set parameter.
Aforesaid with memory function without in stroboscopic LED desk lamp, described display module is LCDs.
Aforesaid with memory function without in stroboscopic LED desk lamp, described power interface is connected with the USB output interface through voltage stabilizing circuit.
Aforesaid with memory function without in stroboscopic LED desk lamp, described LED luminous element is LED lamp pearl.
Aforesaid with memory function without in stroboscopic LED desk lamp, described main control chip interface is connected with the temperature collect module for temperature-sensitive.
Aforesaid with memory function without in stroboscopic LED desk lamp, described constant-current source circuit comprises that be connected electrochemical capacitor with main control chip PWM pin anodal, the negative pole of electrochemical capacitor is connected with the ground of constant current chip; Main control chip PWM pin connects the PWM pin input of constant current chip, and the output of constant current chip connects the LED luminous element.
Compared with prior art, the utility model by with the main control chip of power interface, with clock module, the parameter of memory function arrange module, constant-current source circuit and LED luminous element organically link together consisted of a kind of with memory function without stroboscopic LED desk lamp.The utility model is provided with the clock module of memory function, and the parameters such as assurance such as time, alarm clock, learning time prompting and time of having a rest prompting are not lost after power down, and are without Reparametrization, very convenient when next time, energising was used; The utility model is without high-frequency electronic ballast, but be direct current through the electrochemical capacitor of the PWM of main control chip wave output terminal connection ground connection with the rectification of square impulse wave, direct current is input to inside constant current chip, make the current stabilization of output, do not produce stroboscopic, electromagenetic wave radiation in use procedure, use more comfortable, more healthy; The parameter that is provided with difference in functionality on desk lamp arranges module, and various parameters conveniently are set, and such as time of having a rest prompting, alarm clock, time and calendar etc., uses convenient.
Description of drawings
Fig. 1 is structured flowchart of the present utility model.
Being labeled as in accompanying drawing: the 1-main control chip, the 2-power interface, the 3-parameter arranges module, the 4-constant-current source circuit, 5-LED luminous element, 6-light modulation input module, 7-clock module, 9-temperature collect module, the 10-display module, 11-voltage stabilizing circuit, 12-USB output interface.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described, but not as the foundation to the utility model restriction.
Embodiment.A kind of with memory function without stroboscopic LED desk lamp, consist of as shown in Figure 1, comprise lamp body, be provided with the main control chip 1 of charged interface 2 in lamp body, the parameter that the input of main control chip 1 is connected with clock module 7 with memory function, be used for arranging the desk lamp parameter arranges module 3, and the output of main control chip 1 connects LED luminous elements 5 by constant-current source circuit 4.Main control chip 1 is connected with the light modulation input module 6 for the slip light modulation.Light modulation input module 6 is the slidingtype touch key-press.Main control chip 1 is single-chip microcomputer, and parameter arranges module 3 and completes respectively the capacitance type touch key of difference in functionality for several.Clock module 7 is real-time timepiece chip.Main control chip 1 interface is connected be used to the display module 10 that shows set parameter.Display module 10 is LCDs.Power interface 2 is connected with USB output interface 12 through voltage stabilizing circuit 11.LED luminous element 5 is LED lamp pearl.
The power interface 2 external output of power interface 2 12V, the power supply adaptor of 1A is given whole desk lamp control electricity, is also the power supply of LED luminous element 5.
Clock module 7 is serial clock circuit, as DS1302, DS1307, PCF8485 etc.The interface of these circuit is simple, cheap, easy to use, is adopted widely.The real-time timepiece chip DS1302 that the utility model uses is that DALLAS company produces, main feature is to adopt serial data transmission, real-time timepiece chip DS1302 self-powered (button cell), when externally power cut-off or switch turn-off situation, the parameter that still can preserve the desk lamp Set For Current.
It is several capacitance type touch keys that parameter arranges module 3, it is criterion that capacitance type touch key adopts capacitance, in simple terms, be exactly the circuit that IC controls, this circuit comprises a simple resistive annular electrode assembly after being placed on any medium panel; Therefore the operation interface of button can be a common insulator of monoblock, as organic glass, need to be on the interface borehole, button is below medium, staff forms electric capacity near interface and following electrode slice; Variation by the detecting capacitance is responded to, and not affected by the extraneous factors such as temperature, static, water, dust, and whole interface does not have button, is convenient to cleaning, makes product more high-grade in appearance attractive in appearance.Because button does not have contact, be also very permanent useful life, is in general semipermanent.
The utility model setting arranges the capacitance type touch key of 6 difference in functionalitys, is respectively that menu key (preservation parameters), study, rest reminding arrange button, Timing button, upper mediation and lower button and switch key.
Light modulation input module 6 is slidingtype touch key-presss, and this slidingtype touch key-press is also a kind of capacitance type touch key, touches to change the size of capacitance by slip.The medium panel of slidingtype touch key-press can be a common insulator, such as polymethyl methacrylate, it is copper foil below the medium panel, finger is pressed and slides at medium interface, the parasitic capacitance of human body will be coupled on button direct capacitance over the ground, the final capacitance of button is become greatly gradually, and the capacitance signal of this variation is input to the main control chip interface again and carries out signal of telecommunication conversion.
When switching on power, the PWM pin output low level of main control chip, when effective slip touch action occurs the slidingtype touch key-press, the PWM pin will begin to export square-wave signal, according to the direction of sliding, duty ratio begins to increase or diminish (brightness of LED lamp increases to the highest or inverse variation continuously by minimum beginning) gradually, realizes 8 sections light modulations.When sliding into low order end from high order end, duty ratio is respectively 12.5%, 25%, 37.5%, 50%, 62.5%, 75%, 87.5%, 100%.The corresponding red led of each grade reaches in the situation of this grade, and the red led below this grade is bright.Remain unchanged after reaching maximum brightness; If this moment is long by slip slidingtype touch key-press left, duty ratio reduces gradually, when finger arrives high order end, minimize brightness and remaining unchanged, in whole light modulation process, it is not the transition formula that the brightness of LED lamp changes, the phenomenon of glimmering, jumping can not appear, but increase continuously, the user can arrive comfortable brightness according to the needs free adjustment of oneself, can not produce " dazzle ".
Main control chip 1 is used for controlling whole circuit, and can adopt model is the single-chip microcomputer of SG8F160P.The I/O mouth of this single-chip microcomputer can carry out programming Control, and the variable quantity of the electric capacity of slidingtype touch key-press becomes the signal of telecommunication through conversion and is input to single-chip microcomputer, and the signal of telecommunication after processing through single-chip microcomputer is transferred to constant-current source circuit in the pwm pulse mode; Constant-current source circuit is accepted the PWM ripple, carries out output current corresponding to computing, controls the bright dark of lamp with this, and then realizes that the slidingtype touch key-press is to the bright dark adjusting of LED luminous element.
Display module 10 is LCDs, becomes time, calendar, the isoparametric visual interface of alarm clock, has increased the convenience of using.
Constant-current source circuit 4 is to make the alternating current of output be converted into direct current, and makes electric current keep constant, and the output of constant-current source circuit has following characteristics: a) do not change because load (output voltage) changes; B) do not change because of variation of ambient temperature.Constant-current source circuit 4 comprises electrochemical capacitor and the constant current chip of ground connection, and model can be TL431, and electrochemical capacitor can be the RC electrochemical capacitor, can be also the electrochemical capacitor of other models.
Temperature collect module 9 is used for indoor temperature-sensitive, makes desk lamp with the function of testing environment temperature.
Voltage stabilizing circuit 11 the 12V voltage of input, stabilizes to the output voltage of 5V by pressurizer with pressurizer.
USB output interface 12 output voltages are 5V, and electric current is 500mA, give external connection electrical apparatus such as mobile phone, MP3 or MP4 power supply.
Operation principle of the present utility model:
Power on for the first time when using desk lamp, the parameters such as setup times, alarm clock, learning time and time of having a rest, by the parameter that touches corresponding function, module 3 is set, the capacitance that changes converts the signal of telecommunication to main control chip, main control chip stores corresponding data into real-time timepiece chip DS1302 the inside by the SPI communication, the DS1302 circuit is with power supply (button cell), when making externally power supply adaptor outage or switch disconnection, preserve the data of desk lamp Set For Current, in order to turn on light without Reparametrization next time.
The utility model is through the PWM of main control chip, the electrochemical capacitor that the output wave end adds over the ground is direct current with the rectification of square impulse wave, direct current is powered to the LED luminous element inside being input to constant current chip, make the current stabilization of output, do not produce stroboscopic, electromagenetic wave radiation in use procedure, use more comfortable, more healthy; The parameter that is provided with difference in functionality on desk lamp arranges module, and various parameters conveniently are set, and such as time of having a rest prompting, alarm clock, time and calendar etc., uses convenient.
Claims (10)
- One kind with memory function without stroboscopic LED desk lamp, it is characterized in that: comprise lamp body, be provided with the main control chip (1) of charged interface (2) in lamp body, the parameter that the input of main control chip (1) is connected with clock module (7) with memory function, be used for arranging the desk lamp parameter arranges module (3), and the output of main control chip (1) connects LED luminous element (5) by constant-current source circuit (4).
- According to claim 1 with memory function without stroboscopic LED desk lamp, it is characterized in that: described main control chip (1) is connected with the light modulation input module (6) for sectional dimming.
- According to claim 2 with memory function without stroboscopic LED desk lamp, it is characterized in that: described light modulation input module (6) is the slidingtype touch key-press.
- According to claim 1 with memory function without stroboscopic LED desk lamp, it is characterized in that: described main control chip (1) is single-chip microcomputer.
- According to claim 1 with memory function without stroboscopic LED desk lamp, it is characterized in that: described parameter arranges module (3) for several complete respectively the capacitance type touch key of difference in functionality.
- According to claim 1 with memory function without stroboscopic LED desk lamp, it is characterized in that: described clock module (7) is real-time timepiece chip.
- According to claim 1-6 any one described with memory function without stroboscopic LED desk lamp, it is characterized in that: described main control chip (1) interface is connected be used to the display module that shows set parameter (10).
- According to claim 7 with memory function without stroboscopic LED desk lamp, it is characterized in that: described display module (10) is for LCDs.
- According to claim 1-6 any one described with memory function without stroboscopic LED desk lamp, it is characterized in that: described power interface (2) is connected with USB output interface (12) through voltage stabilizing circuit (11).
- According to claim 1-6 any one described with memory function without stroboscopic LED desk lamp, it is characterized in that: described LED luminous element (5) is for LED lamp pearl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320034458XU CN203015241U (en) | 2013-01-21 | 2013-01-21 | Stroboflash-free LED desk lamp having storage function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320034458XU CN203015241U (en) | 2013-01-21 | 2013-01-21 | Stroboflash-free LED desk lamp having storage function |
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| Publication Number | Publication Date |
|---|---|
| CN203015241U true CN203015241U (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320034458XU Expired - Fee Related CN203015241U (en) | 2013-01-21 | 2013-01-21 | Stroboflash-free LED desk lamp having storage function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203015241U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315449A (en) * | 2014-10-30 | 2015-01-28 | 河北工业大学 | Multifunctional interesting intelligent LED table lamp |
| CN108770127A (en) * | 2018-06-29 | 2018-11-06 | 上海电机学院 | A kind of multi-functional LED desk lamp based on STC89C52 single chip control |
| CN109905942A (en) * | 2019-03-28 | 2019-06-18 | 深圳创维－Rgb电子有限公司 | A kind of LED dim signal control circuit and system |
-
2013
- 2013-01-21 CN CN201320034458XU patent/CN203015241U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315449A (en) * | 2014-10-30 | 2015-01-28 | 河北工业大学 | Multifunctional interesting intelligent LED table lamp |
| CN108770127A (en) * | 2018-06-29 | 2018-11-06 | 上海电机学院 | A kind of multi-functional LED desk lamp based on STC89C52 single chip control |
| CN109905942A (en) * | 2019-03-28 | 2019-06-18 | 深圳创维－Rgb电子有限公司 | A kind of LED dim signal control circuit and system |
| CN109905942B (en) * | 2019-03-28 | 2021-05-18 | 深圳创维－Rgb电子有限公司 | LED dimming signal control circuit and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20160121 |
|
| EXPY | Termination of patent right or utility model |