CN104688428A - Digital automatic light changing welding goggles - Google Patents
Digital automatic light changing welding goggles Download PDFInfo
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- CN104688428A CN104688428A CN201510159039.2A CN201510159039A CN104688428A CN 104688428 A CN104688428 A CN 104688428A CN 201510159039 A CN201510159039 A CN 201510159039A CN 104688428 A CN104688428 A CN 104688428A
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Abstract
The invention relates to digital automatic light changing welding goggles. The digital automatic light changing welding goggles comprise a shell, a lens set and an internal circuit, wherein the internal circuit comprises a single chip microcomputer minimum system (1), a power circuit (2), an electric arc detection circuit (3), an environment temperature detection circuit (4), an LED display circuit (5), a microcomputer switching circuit (6), a liquid crystal drive circuit (7), a sensitivity selection circuit (8), a keying circuit (9) and a five-voltage-multiplying generating circuit (10). When the environment temperature is lower than 0 DEG C or higher than 40 DEG C, compensation can be conducted on shade number automatically. By means of the single-chip microcomputer technology, a good human-computer interaction platform can be provided for a user, and humanization and intelligentialize can be achieved.
Description
Technical Field
The invention belongs to the field of electronic devices, and relates to a digital automatic light-changing welding eye patch, in particular to a digital automatic light-changing welding eye patch which can automatically compensate shading numbers when the ambient temperature reaches below 0 ℃ or above 40 ℃. By adopting the singlechip technology, a user can have a good man-machine interaction platform.
Background
Arc welding arc light causes many hazards, especially severe eye injuries, and the welding eyeshade is a special tool for preventing arc light hazards. The electric welding eye-shade number that appears in the existing market is not adjustable, and the mode that only can change the lens changes, and taking off of lens simultaneously can cause the fish tail of certain degree to the lens, and is very inconvenient to the user.
The digital automatic light-changing welding eyeshade has the advantages of freeing both hands, improving production efficiency and bringing convenience and quality to users besides protecting eyes by adopting the eye protection during electric welding which is provided with the digital automatic light-changing welding eyeshade.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method for protecting eyes of a user by detecting an arc light signal through a photosensitive sensor when the electric welding arc light appears, transmitting the arc light signal processed by a sensitivity selection circuit to a single chip microcomputer according to the setting of the sensitivity of the user, generating a pulse signal by the single chip microcomputer to control a liquid crystal driving circuit, enabling the dark state grade (shading number) of a liquid crystal screen to become light according to the setting of the user, and controlling the liquid crystal screen to recover the normal dark state grade through the timing of the single chip microcomputer according to the return time set by the user when the electric welding arc light disappears.
The invention discloses a digital automatic light-changing welding eye patch, which comprises a shell, a lens group, an internal circuit and an electric luminous body, and is characterized in that the internal circuit comprises: the system comprises a singlechip minimum system (1), a power circuit (2), an arc light detection circuit (3), an ambient temperature detection circuit (4), an LED display circuit (5), a startup and shutdown circuit (6), a liquid crystal drive circuit (7), a sensitivity selection circuit (8), a key circuit (9) and a 5-time voltage generation circuit (10); wherein,
the single-chip microcomputer minimum system (1) comprises: the system comprises a singlechip, an online program burning-in circuit, a reset circuit and a crystal oscillator circuit, wherein a singlechip minimum system (1) is the brain of the whole electronic circuit, controls the work of each circuit module, and is used for receiving arc light signals generated by electric welding, driving an LED display circuit (5) to display, controlling a sensitivity selection circuit (8), controlling a switching circuit (6), generating liquid crystal driving signals, detecting key signals and generating voltage doubling signals;
the power circuit (2) is electrically connected with other modules in the circuit to provide electric energy for the internal circuit;
the arc light detection circuit (3) is used for detecting arc light generated by electric welding, so that analog and digital signals are generated and provided for the single chip microcomputer minimum system (1);
the environment temperature detection circuit (4) is used for detecting the environment temperature on site, and the change of the environment temperature can directly influence the shading number grade, so that the shading number grade has great deviation; when the ambient temperature reaches below 0 ℃ or above 40 ℃, when the single chip microcomputer detects the ambient temperature, a compensation method is adopted to make up for the deviation of the shading number, so that the grade of the shading number reaches the standard;
the LED display circuit (5) is used for displaying the shading number grade, the return time grade, the sensitivity grade and the low voltage indication which are set by a user, and the LED is driven by the single chip microcomputer to display after the user presses a corresponding key;
the on-off circuit (6) is used for controlling the on-off of the whole circuit system, and a user turns on or off the singlechip through an on-off button so as to control the start and the off of the whole circuit system;
the liquid crystal driving circuit (7) is used for driving liquid crystal to generate different alternating voltages which are added into the liquid crystal screen to generate different shading number grades;
the sensitivity selection circuit (8) is used for processing the intensity of the arc light, and the sensitivity is enabled to be higher or lower through key arrangement when the arc light is weaker or stronger;
the key circuit (9) is used for setting sensitivity, return time and shading number grade;
the 5-time voltage generating circuit (10) is used for generating negative high voltage, and the negative high voltage is added into the liquid crystal screen at the moment when arc light appears, so that the liquid crystal screen is instantly blackened, and high corresponding time is obtained;
the single chip microcomputer: the integrated circuit chip is a small and perfect microcomputer system formed by integrating the functions of CPU RAM, ROM, I/O ports, interrupt system, timer, etc. with data processing capacity into one silicon chip by means of very large scale integrated circuit technology.
The online program burning-in circuit is used for erasing, writing and checking the internal software by developers when the single chip microcomputer software is debugged.
A reset circuit: the method is characterized in that the singlechip is reset through the reset circuit after being electrified, and the software can be restarted to run.
A crystal oscillator circuit: is the heart of the singlechip and provides a time base signal of the singlechip.
The display content of the LED display circuit (5) comprises: sensitivity, return time, different gear indications of shade number.
The type of the single chip microcomputer is SH79F166AF with a desk system middle size.
The liquid crystal driving circuit adopts an H-bridge circuit consisting of 2 NMOS transistors and 2 PMOS transistors.
The invention has the beneficial effects that:
by adopting the design, the user can avoid the damage of the lens caused by the complicated lens replacement and long-term replacement. The operation mode is that a user selects a proper gear grade through the setting of the setting keys of the shading number, the sensitivity and the return time, when the electric welding arc light appears, the light changing eye patch can enable the liquid crystal screen to become dark instantly according to the set shading number after detecting the arc light, and when the electric welding arc light disappears, the liquid crystal screen is enabled to recover the normal dark state grade after the set return time.
Drawings
FIG. 1 is a schematic diagram of the internal circuitry of an embodiment of the digital automatic darkening welding mask according to the present invention.
Detailed Description
As shown in fig. 1, the digital automatic light-changing welding eye mask comprises a shell, a lens group, an internal circuit and an electric luminous body, and is characterized in that the internal circuit comprises: the device comprises a singlechip minimum system (1), a power circuit (2), an arc light detection circuit (3), an ambient temperature detection circuit (4), an LED display circuit (5), a startup and shutdown circuit (6), a liquid crystal drive circuit (7), a sensitivity selection circuit (8), a key circuit (9) and a 5-time voltage generation circuit (10).
The minimum system (1) of the single chip microcomputer consists of the single chip microcomputer, an online program burning-in circuit, a reset circuit and a crystal oscillator circuit, and the minimum system (1) of the single chip microcomputer is a brain of the whole electronic circuit and controls the work of each circuit module. The device is used for receiving an arc light signal, driving an LED circuit to display (displaying refers to different gear indications of sensitivity, return time and shading number), controlling the sensitivity, controlling the on-off machine, generating a liquid crystal driving signal, detecting a key and generating a voltage doubling signal.
A single chip microcomputer: the integrated circuit chip is a small and perfect microcomputer system formed by integrating the functions of CPU RAM, ROM, I/O ports, interrupt system, timer, etc. with data processing capacity into one silicon chip by means of very large scale integrated circuit technology.
The on-line program is burned into the circuit, which is mainly convenient for developers to erase, write and check the internal software when the singlechip software is debugged.
A reset circuit: the reset circuit is used for resetting the singlechip after being electrified, so that the software can restart to run, and the computer is similar to a computer.
A crystal oscillator circuit: is the heart of the singlechip and provides a time base signal of the singlechip.
The power circuit (2) is electrically connected with other modules in the circuit to provide electric energy for the internal circuit.
The arc light detection circuit (3) is used for detecting arc light signals generated by electric welding to generate analog and digital signals, and the analog and digital signals are provided for the single chip microcomputer minimum system (1).
The ambient temperature detection circuit (4) is used for detecting the ambient temperature of a site, and the grade of the shading number can be directly influenced by the change of the ambient temperature, so that the shading number has huge deviation. When the ambient temperature reaches below 0 ℃ or above 40 ℃, and the singlechip detects the ambient temperature, a compensation method is adopted to make up the deviation of the shading number, so that the shading number reaches the standard.
The LED display circuit (5) displays the shading number grade, the return time grade, the sensitivity grade and the low voltage indication set by a user, and is more humanized in use. After a user presses a corresponding key, the single chip microcomputer drives the LED to display.
The startup and shutdown circuit (6) is used for opening and closing the whole circuit system, and a user controls the startup and the shutdown through a startup and shutdown key by the singlechip.
The liquid crystal driving circuit (7) is used for driving liquid crystal, and different alternating voltages are generated and added into the liquid crystal screen to generate different shading numbers.
The sensitivity selection circuit (8) is used for processing the intensity of the arc light, the sensitivity can be increased by setting the keys when the arc light is weak, and the eye shield can be mistakenly changed when the sensitivity is increased (mistaken change of light: the eye shield is also changed when the arc light is not available), so that the sensitivity can be set to be lower.
The key circuit (9) is used for setting sensitivity, return time, and a light-shielding number.
The 5-time voltage generating circuit (10) is used for generating negative high voltage, because at the moment when arc light appears, the negative high voltage must be added into the liquid crystal screen to make the liquid crystal screen blacken instantly, and high corresponding time is obtained.
By adopting the technical scheme, the digital automatic dimming welding eye patch can detect an arc signal through the photosensitive sensor when welding arc light appears, the arc signal processed by the sensitivity selection circuit is transmitted to the single chip microcomputer according to the setting of a user on the sensitivity, then the single chip microcomputer generates a pulse signal to control the liquid crystal driving circuit, so that the dark state grade (shading number) of the liquid crystal screen becomes dimmer according to the setting of the user, and when the welding arc light disappears, the normal dark state grade of the liquid crystal screen is controlled to be recovered through the timing of the single chip microcomputer according to the return time set by the user, and the eye protection of the user is realized.
The foregoing description of the embodiments with reference to the present invention is illustrative rather than limiting, and thus, variations and modifications may be made without departing from the general inventive concept, which is intended to be within the scope of the present invention.
The invention has been described herein with reference to specific exemplary embodiments thereof. It will be apparent to those skilled in the art that appropriate substitutions or modifications may be made without departing from the scope of the invention. The exemplary embodiments are merely illustrative, and not restrictive of the scope of the invention, which is defined by the appended claims.
Claims (8)
1. A digital automatic light-changing welding eye patch comprises a shell, a lens group, an internal circuit and an electric luminous body, and is characterized in that the internal circuit comprises: the system comprises a singlechip minimum system (1), a power circuit (2), an arc light detection circuit (3), an ambient temperature detection circuit (4), an LED display circuit (5), a startup and shutdown circuit (6), a liquid crystal drive circuit (7), a sensitivity selection circuit (8), a key circuit (9) and a 5-time voltage generation circuit (10); wherein,
the single-chip microcomputer minimum system (1) comprises: the system comprises a singlechip, an online program burning-in circuit, a reset circuit and a crystal oscillator circuit, wherein a singlechip minimum system (1) is the brain of the whole electronic circuit, controls the work of each circuit module, and is used for receiving arc light signals generated by electric welding, driving an LED display circuit (5) to display, controlling a sensitivity selection circuit (8), controlling a switching circuit (6), generating liquid crystal driving signals, detecting key signals and generating voltage doubling signals;
the power circuit (2) is electrically connected with other modules in the circuit to provide electric energy for the internal circuit;
the arc light detection circuit (3) is used for detecting arc light generated by electric welding, so that analog and digital signals are generated and provided for the single chip microcomputer minimum system (1);
the environment temperature detection circuit (4) is used for detecting the environment temperature on site, and the change of the environment temperature can directly influence the shading number grade, so that the shading number grade has great deviation; when the ambient temperature reaches below 0 ℃ or above 40 ℃, when the single chip microcomputer detects the ambient temperature, a compensation method is adopted to make up for the deviation of the shading number, so that the grade of the shading number reaches the standard;
the LED display circuit (5) is used for displaying the shading number grade, the return time grade, the sensitivity grade and the low voltage indication which are set by a user, and the LED is driven by the single chip microcomputer to display after the user presses a corresponding key;
the on-off circuit (6) is used for controlling the on-off of the whole circuit system, and a user turns on or off the singlechip through an on-off button so as to control the start and the off of the whole circuit system;
the liquid crystal driving circuit (7) is used for driving liquid crystal to generate different alternating voltages which are added into the liquid crystal screen to generate different shading number grades;
the sensitivity selection circuit (8) is used for processing the intensity of the arc light, and the sensitivity is enabled to be higher or lower through key arrangement when the arc light is weaker or stronger;
the key circuit (9) is used for setting sensitivity, return time and shading number grade;
the 5-time voltage generating circuit (10) is used for generating negative high voltage, and the negative high voltage is added into the liquid crystal screen at the moment when arc light appears, so that the liquid crystal screen is blackened instantly, and high corresponding time is obtained.
2. The digital automatic darkening welding eye mask of claim 1, wherein:
the single chip microcomputer: the integrated circuit chip is a small and perfect microcomputer system formed by integrating the functions of CPU RAM, ROM, I/O ports, interrupt system, timer, etc. with data processing capacity into one silicon chip by means of very large scale integrated circuit technology.
3. The digital automatic darkening welding eye mask of claim 2, wherein:
the online program burning-in circuit is used for erasing, writing and checking the internal software by developers when the single chip microcomputer software is debugged.
4. The digital automatic darkening welding eye mask of claim 3, wherein:
a reset circuit: the method is characterized in that the singlechip is reset through the reset circuit after being electrified, and the software can be restarted to run.
5. The digital automatic darkening welding eye shield of claim 4, wherein:
a crystal oscillator circuit: is the heart of the singlechip and provides a time base signal of the singlechip.
6. The digital automatic darkening welding eye shield of claim 5, wherein:
the display content of the LED display circuit (5) comprises: sensitivity, return time, different gear indications of shade number.
7. The digital automatic darkening welding eye mask of claim 6, wherein:
the type of the single chip microcomputer is SH79F166AF with a desk system middle size.
8. The digital automatic darkening welding eye mask of claim 7, wherein:
the liquid crystal driving circuit adopts an H-bridge circuit consisting of 2 NMOS transistors and 2 PMOS transistors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510159039.2A CN104688428A (en) | 2015-04-03 | 2015-04-03 | Digital automatic light changing welding goggles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510159039.2A CN104688428A (en) | 2015-04-03 | 2015-04-03 | Digital automatic light changing welding goggles |
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| CN104688428A true CN104688428A (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510159039.2A Pending CN104688428A (en) | 2015-04-03 | 2015-04-03 | Digital automatic light changing welding goggles |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790699A (en) * | 2016-04-26 | 2016-07-20 | 安徽灿邦电气有限公司 | Novel photovoltaic controller |
| CN106038058A (en) * | 2016-07-01 | 2016-10-26 | 宁波吉欧光电科技有限公司 | Digital automatic light-changing welding eye patches |
| CN108387367A (en) * | 2018-03-07 | 2018-08-10 | 宁波吉欧光电科技有限公司 | A kind of test method of photodiode |
| CN109172138A (en) * | 2018-11-12 | 2019-01-11 | 江苏美信光电科技有限公司 | A kind of light-operated welding mask of intelligent solar auxiliary heating liquid crystal |
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| US20100088793A1 (en) * | 2006-06-06 | 2010-04-15 | Livio Ghisleni | Face and antiglare protection device for persons working in sites involving hazardous, damaging or disturbing radiation, especially welders |
| CN201701373U (en) * | 2010-01-15 | 2011-01-12 | 北京极光安防护科技有限公司 | Automatic darkening welding filter lens for keeping stable driving in steady welding arc light |
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2015
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Patent Citations (5)
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| US6483090B1 (en) * | 1998-12-29 | 2002-11-19 | Otos Co., Ltd. | Glare protecting device and method of controlling thereof |
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| CN201701373U (en) * | 2010-01-15 | 2011-01-12 | 北京极光安防护科技有限公司 | Automatic darkening welding filter lens for keeping stable driving in steady welding arc light |
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| CN202801929U (en) * | 2012-09-29 | 2013-03-20 | 浙江赛凯车业有限公司 | Light-operated automatic welding helmet |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790699A (en) * | 2016-04-26 | 2016-07-20 | 安徽灿邦电气有限公司 | Novel photovoltaic controller |
| CN106038058A (en) * | 2016-07-01 | 2016-10-26 | 宁波吉欧光电科技有限公司 | Digital automatic light-changing welding eye patches |
| CN108387367A (en) * | 2018-03-07 | 2018-08-10 | 宁波吉欧光电科技有限公司 | A kind of test method of photodiode |
| CN109172138A (en) * | 2018-11-12 | 2019-01-11 | 江苏美信光电科技有限公司 | A kind of light-operated welding mask of intelligent solar auxiliary heating liquid crystal |
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Application publication date: 20150610 |
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