CN201404357Y - 一种自动遮光电焊镜片 - Google Patents

一种自动遮光电焊镜片 Download PDF

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CN201404357Y
CN201404357Y CN200920119838.7U CN200920119838U CN201404357Y CN 201404357 Y CN201404357 Y CN 201404357Y CN 200920119838 U CN200920119838 U CN 200920119838U CN 201404357 Y CN201404357 Y CN 201404357Y
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gate
circuit chip
welding lens
gate circuit
automatic shading
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葛向东
王森文
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HANGZHOU LIANBO ELECTRONICS Co Ltd
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HANGZHOU LIANBO ELECTRONICS Co Ltd
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Priority to CN200920119838.7U priority Critical patent/CN201404357Y/zh
Priority to RU2011117258/14A priority patent/RU2471460C1/ru
Priority to EP10774505.1A priority patent/EP2332502B1/en
Priority to PCT/CN2010/070640 priority patent/WO2010130164A1/zh
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Publication of CN201404357Y publication Critical patent/CN201404357Y/zh
Priority to US13/079,120 priority patent/US8953104B2/en
Priority to ZA2011/02851A priority patent/ZA201102851B/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/04—Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing
    • A61F9/06—Masks, shields or hoods for welders
    • A61F9/065—Masks, shields or hoods for welders use of particular optical filters
    • A61F9/067—Masks, shields or hoods for welders use of particular optical filters with variable transmission
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G02F1/13318—Circuits comprising a photodetector
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Led Devices (AREA)
  • Electroluminescent Light Sources (AREA)
  • Led Device Packages (AREA)

Abstract

本实用新型提供一种可在光线较暗的环境下工作的自动遮光电焊镜片，包括视窗和边框，视窗依次由滤光片、液晶片叠置而成，所述的自动遮光电焊镜片带有照明装置，照明装置包括电连接成一个回路的发光体、开关和电源，所述发光体设于边框上朝向焊接物的面。所述发光体采用发光二极管。所述开关为延时开关。本实用新型的有益效果在于：1)由于带有照明装置，便于在暗态工作环境下找准焊接位置，保证焊接质量；2)采用延时开关，节省电能，省去关闭发光体的操作，使用更方便。

Description

一种自动遮光电焊镜片
技术领域
本实用新型涉及一种自动遮光电焊镜片，具体是指一种可在光线较暗的环境下工作的自动遮光电焊镜片。
背景技术
自动遮光电焊镜片可以根据电焊光来控制遮光度，彻底根除了电焊职业病一电光性眼炎的发生，电焊工可以使用双手作业，减少了焊接辅助工序，提高了焊接质量和效率，减少了焊机的空载耗电，由此可见它必将成为更新换代的电焊劳动防护用品。但是由于自动遮光电焊镜片中采用了防红外线和防紫外线的滤光片及两片液晶片，没有电焊弧光照射时，透光率较低，在室内光线不足的情况下或在机器设备背光等情况下电焊工往往看不清焊接点，这样容易造成焊接质量不良的情况。
发明内容
本实用新型针对现有技术存在的问题，提供一种保证暗态环境下焊接质量良好，使用方便的自动遮光电焊镜片。
本实用新型所采用的技术方案为：
一种自动遮光电焊镜片，包括视窗和边框，视窗依次由滤光片、液晶片叠置而成，所述的自动遮光电焊镜片带有照明装置，照明装置包括电连接成一个回路的发光体、开关和电源，所述发光体设于边框上朝向焊接物的面。
所述发光体采用发光二极管。
所述开关为延时开关。
所述延时开关包括按钮、用于充放电的电容器、放电电阻、门电路芯片及三极管。按钮一端与电源端相连，另一端与电容器相连，电容器与放电电阻并联，门电路芯片输入端与电容器电压输出端相连，门电路芯片输出端与三极管基极相连，三极管发射极接地，发光二极管阴极与三极管集电极相连，发光二极管阳极接电源端。
所述门电路芯片采用74HC14芯片。
所述门电路芯片包括6个非门，非门A、非门B、并联后的非门C和非门F、并联后的非门D和非门E依次串联，非门A的输入端作为门电路芯片的输入端，非门D和非门E的输出端并联后作为门电路芯片的输出端。
放电电阻采用并联的两个电阻。
电源端并联有去耦电容。
本实用新型的有益效果在于：1)由于带有照明装置，便于在暗态工作环境下找准焊接位置，保证焊接质量；2)采用延时开关，节省电能，省去关闭发光体的操作，使用更方便；3)采用CMOS门电路芯片，功耗低，输入阻抗高，因此充放电电路中的电容器容量可以较小，节省成本，减轻重量；5)采用两个电阻并联作为放电电阻，便于调整放电时间。
附图说明
图1为本实用新型结构示意图；
图2为延时开关电路图；
图3为门电路芯片的内部结构示意图；
图4为芯片内门电路连接示意图。
具体实施方式
以下结合实施例和附图对本实用新型作进一步说明：
参见图1，一种自动遮光电焊镜片，包括视窗1和边框2，视窗1依次由滤光片、液晶片叠置而成，边框2内布有电连接的控制芯片、光电传感器、太阳能电池，本实用新型是对现有技术的改进，其改进之处在于：还设有照明装置，照明装置包括电连接成一个回路的发光体3、开关4和电源5，发光体3设于边框2上朝向焊接物的面。本实施例中，电源4采用锂电池，发光体采用发光二极管，开关采用延时开关，发光二极管可以在每次点亮一段时间后自动熄灭。
参见图2，延时开关包括：按钮S1、用于充放电的电容器E1、放电电阻R、门电路芯片IC1及三极管D1；本实施例中，门电路芯片采用74HC14，其内部结构如图3所示，包括6个集成封装的非门，使用时连接关系如图4所示，非门A、非门B、并联后的非门C和非门F、并联后的非门D和非门E依次串联，非门A的输入端作为门电路芯片的输入端，非门D和非门E的输出端并联后作为门电路芯片的输出端，门电路芯片74HC14本身耗电量低，输入阻抗高，采用容量较小的电容器即可保证足够长的放电时间，也进一步减轻了电焊镜片的重量，当然也可以采用555芯片或者其他门电路。
按钮S1一端与电源端Vcc相连，另一端与电容器E1相连，电容器E1与放电电阻R并联，门电路芯片IC1输入端与电容器E1电压输出端相连，门电路芯片IC1输出端通过限流电阻R3与三极管D1基极相连，三极管D1发射极接地，发光二极管LED阴极与三极管D1集电极相连，发光二极管LED阳极接Vcc。放电电阻R采用并联的两个电阻R1和R2，为了使照明装置体积尽量小，采用可调电阻是不现实的，使用两个并联的电阻可很方便地选择放电电阻阻值以设定放电时间。当需要启动照明装置时，按下按钮S1，电源端Vcc向电容器E1充电，门电路输出高电位，通过三极管D1进行电流放大使发光二极管发光。同时电容器E1通过电阻R1、R2放电，当电容器E1两端的电压低于门电路的导通阈值时，门电路输出为零，三极管D1截止，发光二极管停止发光，从而完成了一个照明的周期。采用定时设计一方面是为了节约用电，另一方面，因为整个面罩是要戴在头上工作的，因此面罩的重量越轻越好，电池体积应尽量小，重量尽可能轻。

Claims (8)

1.一种自动遮光电焊镜片，包括视窗(1)和边框(2)，视窗(1)依次由滤光片、液晶片叠置而成，其特征是：所述的自动遮光电焊镜片带有照明装置，照明装置包括电连接成一个回路的发光体(3)、开关(4)和电源(5)，所述发光体(3)设于边框(1)上朝向焊接物的面。
2.根据权利要求1所述的一种自动遮光电焊镜片，其特征是：所述发光体(3)采用发光二极管。
3.根据权利要求1或2所述的一种自动遮光电焊镜片，其特征是：所述开关(4)为延时开关。
4.根据权利要求3所述的一种自动遮光电焊镜片，其特征是：所述延时开关包括按钮(S1)、用于充放电的电容器(E1)、放电电阻R、门电路芯片(IC1)及三极管(D1)，按钮(S1)一端与电源端(Vcc)相连，另一端与电容器(E1)相连，电容器(E1)与放电电阻并联，门电路芯片(IC1)输入端与电容器(E1)电压输出端相连，门电路芯片(IC1)输出端与三极管(D1)基极相连，三极管(D1)发射极接地，发光二极管(LED)阴极与三极管(D1)集电极相连，发光二极管(LED)阳极接电源端(Vcc)。
5.根据权利要求4所述的自动遮光电焊镜片，其特征是：所述门电路芯片采用74HC14芯片。
6.根据权利要求4所述的一种自动遮光电焊镜片，其特征是：所述门电路芯片包括6个非门，非门A、非门B、并联后的非门C和非门F、并联后的非门D和非门E依次串联，非门A的输入端作为门电路芯片的输入端，非门D和非门E的输出端并联后作为门电路芯片的输出端。
7.根据权利要求4所述的一种自动遮光电焊镜片，其特征是：放电电阻采用并联的两个电阻(R1、R2)。
8.根据权利要求4所述的一种自动遮光电焊镜片，其特征是：电源端并联有去耦电容(E2)。
CN200920119838.7U 2009-05-14 2009-05-14 一种自动遮光电焊镜片 Expired - Fee Related CN201404357Y (zh)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN200920119838.7U CN201404357Y (zh) 2009-05-14 2009-05-14 一种自动遮光电焊镜片
RU2011117258/14A RU2471460C1 (ru) 2009-05-14 2010-02-11 Автоматически затемняющиеся линзы для электросварки
EP10774505.1A EP2332502B1 (en) 2009-05-14 2010-02-11 Automatic shading electric welding lens
PCT/CN2010/070640 WO2010130164A1 (zh) 2009-05-14 2010-02-11 一种自动遮光电焊镜片
US13/079,120 US8953104B2 (en) 2009-05-14 2011-04-04 Automatic shading electric welding lens comprising a liquid crystal plate and a time-delay switch
ZA2011/02851A ZA201102851B (en) 2009-05-14 2011-04-15 Automatic shading electric welding lens

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EP (1) EP2332502B1 (zh)
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RU (1) RU2471460C1 (zh)
WO (1) WO2010130164A1 (zh)
ZA (1) ZA201102851B (zh)

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CN204971846U (zh) * 2015-08-14 2016-01-20 宁波吉欧光电科技有限公司 一种自动变光面罩

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CN201200542Y (zh) * 2008-05-08 2009-03-04 葛向东 一种自动变光电焊镜片
RU91616U1 (ru) * 2009-01-27 2010-02-20 Глеб Степанович Бакшаев Автономное освещение рабочей зоны сварщика

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104546287A (zh) * 2015-02-14 2015-04-29 宁波吉欧光电科技有限公司 一种自动遮光电焊面罩镜组

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EP2332502A1 (en) 2011-06-15
US20110176072A1 (en) 2011-07-21
EP2332502B1 (en) 2016-05-18
RU2011117258A (ru) 2012-11-10
US8953104B2 (en) 2015-02-10
ZA201102851B (en) 2012-04-25
EP2332502A4 (en) 2014-12-24
WO2010130164A1 (zh) 2010-11-18
RU2471460C1 (ru) 2013-01-10

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