CN103874294A - Light control illumination device for sewing machine - Google Patents
Light control illumination device for sewing machine Download PDFInfo
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- CN103874294A CN103874294A CN201410092573.1A CN201410092573A CN103874294A CN 103874294 A CN103874294 A CN 103874294A CN 201410092573 A CN201410092573 A CN 201410092573A CN 103874294 A CN103874294 A CN 103874294A
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- main control
- control chip
- electrically connected
- sewing machine
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Abstract
The invention belongs to the technical field of a sewing machine, and particularly relates to a light control illumination device for a sewing machine. A detection circuit and a light ray sensor used for providing control signals are electrically connected between a main control chip power supply and a main control chip, the pulse width modulation output end of the main control chip is electrically connected with an isolation optical coupler, pulse control signals output by the isolation optical coupler control the brightness of an illumination lamp with an independent illumination power supply, and the environment light rays can be detected through a light ray sensor (photoresistor). The resistance value change of the photoresistor is caused through different environment illumination intensity, so through detecting the voltage change of a resistor R4 in the circuit, the main control chip can estimate the environment illumination intensity at the time, the brightness of an LED (light emitting diode) is controlled to adapt to the environment light rays, and the light ray sensor has the advantages that the measuring range is wide, the use is convenient, the price is low, the transmission distance is long, and the light ray sensor can be conveniently arranged on various sewing machines and is applicable to various places; the brightness of the LED is automatically regulated, the eyesight of a user is protected, and the energy is also saved.
Description
Technical field:
The invention belongs to sewing machine technique field, refer in particular to a kind of controlling light illuminating apparatus of sewing machine.
Background technology:
Sewing machine lamp circuit is in the past directly connected to power supply by a current-limiting resistance and LED lamp, with the on and off of a controlling switch lamp.Like this, the brightness of lamp is fixed, and the electric energy of consumption is constant, can not regulate, and can not adapt to different light environments, and can impact operator's eyesight.
Summary of the invention:
The object of this invention is to provide a kind of be applicable to varying environment, eyesight easy to use, that protected user energy-conservation again the controlling light illuminating apparatus of novel sewing machine of energy.
The present invention is achieved in that
A kind of controlling light illuminating apparatus of sewing machine, between main control chip power supply and main control chip, be electrically connected with testing circuit and the light sensor of control signal is provided, the pulse-width modulation output of main control chip is electrically connected with isolation optocoupler, and the pulse control signal control of isolation optocoupler output is with the brightness of the illuminating lamp of independent illumination power supply.
The control signal control of above-mentioned isolation optocoupler output with the brightness of the illuminating lamp of independent illumination power supply is: the main control chip positive source that the emitter of isolation optocoupler output and the emitter of the triode Q1 of peripheral hardware are electrically connected and are electrically connected after base stage, the series resistance R2 of mains lighting supply negative pole, collector electrode while and triode Q1 is electrically connected, and mains lighting supply positive pole is electrically connected with the collector electrode of triode Q1 after series resistance R1, illuminating lamp successively.
Above-mentioned testing circuit is resistance R 4 and the capacitor C 1 being connected in parallel, and after resistance R 4 and capacitor C 1 is in parallel, one end is with the negative pole of main control chip power supply and the ADI pin of main control chip is electrically connected, the other end is electrically connected with the pulse-width modulation output of main control chip.
Above-mentioned triode is NPN triode.
Above-mentioned illuminating lamp is more than one LED lamp.
The voltage of above-mentioned mains lighting supply is 5-12V.
Above-mentioned light sensor is photo resistance or phototriode or photoelectric tube.
One end of above-mentioned light sensor is electrically connected with the positive pole of main control chip power supply, the other end is electrically connected with the ADI pin of main control chip.
The advantage that the present invention gives prominence to is compared to existing technology:
1, the present invention is by the light of light sensor (photo resistance) testing environment, the illumination of environment is strong and weak different, cause photo resistance change in resistance, therefore by the variation of resistance R 4 voltages in testing circuit, main control chip just can estimate the now illumination power of environment, thereby controls the brightness of LED, and light conforms, light sensor has that measuring range is wide, easy to use, cheap, long transmission distance, be convenient to be arranged on various sewing machines, is applicable to various places.
2, the present invention regulates the brightness of LED automatically, has protected user's eyesight, has saved again energy.
Brief description of the drawings:
Fig. 1 is circuit diagram of the present invention.
Embodiment:
With specific embodiment, the invention will be further described below, referring to Fig. 1:
A kind of controlling light illuminating apparatus of sewing machine, between main control chip power supply 1 and main control chip U1, be electrically connected with testing circuit 2 and the light sensor of control signal is provided, the pulse-width modulation output PWM of main control chip U1 is electrically connected with isolation optocoupler U2, and the pulse control signal control of isolation optocoupler U2 output is with the brightness of the illuminating lamp 3 of independent illumination power supply VC.
The control signal control of above-mentioned isolation optocoupler U2 output with the brightness of the illuminating lamp 3 of independent illumination power supply VC is: the emitter 4 of isolation optocoupler U2 output and the emitter 5 of the triode Q1 of peripheral hardware be electrically connected and be electrically connected mains lighting supply negative pole, collector electrode 6 simultaneously with anodal electrical connection of main control chip power supply 1 after base stage 7, the series resistance R2 of triode Q1, mains lighting supply VC positive pole successively series resistance R1, illuminating lamp 3 is rear is electrically connected with the collector electrode 8 of triode Q1.
Resistance R 4 and the capacitor C 1 of above-mentioned testing circuit 2 for being connected in parallel, resistance R 4 with capacitor C 1 one end afterwards in parallel with the negative pole of main control chip power supply 1 and the ADI pin of main control chip U1 is electrically connected, the other end is electrically connected with the pulse-width modulation output PWM of main control chip U1.
Above-mentioned triode Q1 is NPN triode.
Above-mentioned illuminating lamp 3 is more than one LED lamp.
The voltage of above-mentioned mains lighting supply VC is 5-12V.
Above-mentioned light sensor is photo resistance R5 or phototriode or photoelectric tube.
One end of above-mentioned light sensor is electrically connected with the positive pole of main control chip power supply 1, the other end is electrically connected with the ADI pin of main control chip U1.
Operation principle of the present invention is:
In the time that surround lighting strengthens, photo resistance R5 resistance diminishes, and the voltage that now enters into master control new film UI pin ADL increases.Main control chip U1 is through computing, from the less PWM duty cycle signals of PWM pin output, (the low electricity of PWM is frequently effectively), thus reduce the output brightness of LED lamp.
The PWM pin of main control chip U1 is pulse-width modulation output, controls opening and turn-offing of triode Q1, thereby controls the brightness of sewing machine LED lamp.In the time that PWM pin output duty cycle changes, just can regulate the brightness of LED lamp.Isolation optocoupler U2 has played the effect of isolation, main control chip U1 power supply and LED lamp isolated from power, avoids interfering with each other.
Above-described embodiment is only one of preferred embodiment of the present invention, not limits practical range of the present invention with this, therefore: all equivalences of doing according to shape of the present invention, structure, principle change, within all should being covered by protection scope of the present invention.
Claims (8)
1. the controlling light illuminating apparatus of a sewing machine, it is characterized in that: between main control chip power supply and main control chip, be electrically connected with testing circuit and the light sensor of control signal is provided, the pulse-width modulation output of main control chip is electrically connected with isolation optocoupler, and the pulse control signal control of isolation optocoupler output is with the brightness of the illuminating lamp of independent illumination power supply.
2. the controlling light illuminating apparatus of a kind of sewing machine according to claim 1, it is characterized in that: the control signal control of described isolation optocoupler output with the brightness of the illuminating lamp of independent illumination power supply is: the main control chip positive source that the emitter of isolation optocoupler output and the emitter of the triode Q1 of peripheral hardware are electrically connected and are electrically connected after base stage, the series resistance R2 of mains lighting supply negative pole, collector electrode while and triode Q1 is electrically connected, and mains lighting supply positive pole is electrically connected with the collector electrode of triode Q1 after series resistance R1, illuminating lamp successively.
3. the controlling light illuminating apparatus of a kind of sewing machine according to claim 1, it is characterized in that: described testing circuit is resistance R 4 and the capacitor C 1 being connected in parallel, after resistance R 4 and capacitor C 1 is in parallel, one end is with the negative pole of main control chip power supply and the ADI pin of main control chip is electrically connected, the other end is electrically connected with the pulse-width modulation output of main control chip.
4. the controlling light illuminating apparatus of a kind of sewing machine according to claim 1, is characterized in that: described triode is NPN triode.
5. the controlling light illuminating apparatus of a kind of sewing machine according to claim 1, is characterized in that: described illuminating lamp is more than one LED lamp.
6. the controlling light illuminating apparatus of a kind of sewing machine according to claim 1, is characterized in that: the voltage of described mains lighting supply is 5-12V.
7. the controlling light illuminating apparatus of a kind of sewing machine according to claim 1, is characterized in that: described light sensor is photo resistance or phototriode or photoelectric tube.
8. according to the controlling light illuminating apparatus of a kind of sewing machine described in claim 1-7 any one, it is characterized in that: one end of described light sensor is electrically connected with the positive pole of main control chip power supply, the other end is electrically connected with the ADI pin of main control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410092573.1A CN103874294B (en) | 2014-03-13 | 2014-03-13 | A kind of controlling light illuminating apparatus of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410092573.1A CN103874294B (en) | 2014-03-13 | 2014-03-13 | A kind of controlling light illuminating apparatus of sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103874294A true CN103874294A (en) | 2014-06-18 |
| CN103874294B CN103874294B (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410092573.1A Active CN103874294B (en) | 2014-03-13 | 2014-03-13 | A kind of controlling light illuminating apparatus of sewing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN103874294B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107284348A (en) * | 2017-07-05 | 2017-10-24 | 武汉市技领科技有限公司 | Automatic light-supplementing method and system for Car license recognition |
| GB2570163A (en) * | 2018-03-01 | 2019-07-17 | Broseley Ltd | Dimming system |
| US11832367B2 (en) | 2018-03-01 | 2023-11-28 | Broseley Limited | Dimming systems |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000046439A1 (en) * | 1999-02-05 | 2000-08-10 | Bed Handles, Inc. | Hand-held, finger or mouth-actuated pneumatic unit for remote proportional control of sewing machine |
| CN2517171Y (en) * | 2002-01-25 | 2002-10-16 | 郭景伟 | Electric saver for industrial sewing machine |
| CN2911394Y (en) * | 2006-05-16 | 2007-06-13 | 董岳成 | Sewing machine lamp |
| CN201541367U (en) * | 2009-09-27 | 2010-08-04 | 叶信平 | Dimming drive circuit of LED illuminating lamp for sewing machine |
| CN201546032U (en) * | 2009-09-23 | 2010-08-11 | 上海豪跃机电有限公司 | Backstitch control device |
| CN101877926A (en) * | 2010-07-08 | 2010-11-03 | 张家炎 | Automatic light-regulating control system |
-
2014
- 2014-03-13 CN CN201410092573.1A patent/CN103874294B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000046439A1 (en) * | 1999-02-05 | 2000-08-10 | Bed Handles, Inc. | Hand-held, finger or mouth-actuated pneumatic unit for remote proportional control of sewing machine |
| CN2517171Y (en) * | 2002-01-25 | 2002-10-16 | 郭景伟 | Electric saver for industrial sewing machine |
| CN2911394Y (en) * | 2006-05-16 | 2007-06-13 | 董岳成 | Sewing machine lamp |
| CN201546032U (en) * | 2009-09-23 | 2010-08-11 | 上海豪跃机电有限公司 | Backstitch control device |
| CN201541367U (en) * | 2009-09-27 | 2010-08-04 | 叶信平 | Dimming drive circuit of LED illuminating lamp for sewing machine |
| CN101877926A (en) * | 2010-07-08 | 2010-11-03 | 张家炎 | Automatic light-regulating control system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107284348A (en) * | 2017-07-05 | 2017-10-24 | 武汉市技领科技有限公司 | Automatic light-supplementing method and system for Car license recognition |
| GB2570163A (en) * | 2018-03-01 | 2019-07-17 | Broseley Ltd | Dimming system |
| GB2570163B (en) * | 2018-03-01 | 2021-07-14 | Broseley Ltd | Dimming systems |
| US11832367B2 (en) | 2018-03-01 | 2023-11-28 | Broseley Limited | Dimming systems |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103874294B (en) | 2016-07-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 318000 Taizhou Airport Road, Jiaojiang District, Zhejiang, No. 15 Applicant after: JACK SEWING MACHINE CO., LTD. Address before: 318000 Taizhou Airport Road, Jiaojiang District, Zhejiang, No. 15 Applicant before: New Jack Sewing Machine Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: NEW JACK SEWING MACHINE CO., LTD. TO: JACK SEWING CO., LTD. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318000 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
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| CP03 | Change of name, title or address |