CN103764334A - 具有至少一个气体激光器和散热器的标记仪器 - Google Patents
具有至少一个气体激光器和散热器的标记仪器 Download PDFInfo
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Abstract
本发明涉及一种使用激光标记物体的标记仪器,该仪器包括至少一个气体激光器,用于发射至少一个用于标记物体的激光束。至少一个气体激光器包括复数个谐振管(12),用于接收激光气体,提供了复数个散热器(20),用于从谐振管(12)消散热量,每一谐振管(12)与散热器(20)之一热连接,且每一散热器(20)包括用于接收冷却液的微通道。
Description
技术领域
本发明涉及一种标记仪器,根据前文权利要求1使用激光标记物体。
背景技术
一种使用激光标记物体的通用标记仪器包括至少一个用于发射至少一个激光束的气体激光器,用于标记物体。
在气体激光器内,生成的激光产生待消散的热量。
因而,传统的标记仪器包括一冷却设备,通常被容纳在与气体激光器和标记仪器的许多其他组件同一壳体内。已知的冷却设备相当耗费空间,致使仪器非常稳固,这限制了应用的领域。
传统标记仪器在冷却能力和灵活性间的构成权衡。譬如限于风扇和冷却肋的,简洁紧凑的冷却机构可允许仪器的灵活使用。然而这可是以冷却能力为代价实现的。
日本专利JP63094695公开了一种具有矩形设置激光管的气体激光器。为了冷却激光管,含有冷却液的金属管被设置在毗邻的激光管。
美国专利US3705999描述了另一种气体激光器。该激光器包括复数个相邻于激光管的冷却通道。
美国专利US4500998的主体为气体激光器,其中放置有冷却管,冷却管内承载有用于产生激光的气体激光器。
美国专利US5982803描述了一种气体板条激光器。该激光器可通过蜿蜒型水冷却通道冷却。可选地,提供有用于空气冷却的翅片散热片和风扇。
日本专利JP05129678的主体是具有布置在激光气体放电空间旁的水冷却通路的激光标记设备。
美国专利US5115446A公开了导致谐振管横向设置的气体激光器的组件的承载结构。
发明内容
本发明的目的在于提供一种标记仪器,展示了尤其有效的冷却,同时空间需求适中。
该目的由具有权利要求1的特征的标记仪器所解决。
优选实施例在独立权利要求及以下描绘,尤其是结合附图给出。
根据本发明,上述种类的标记仪器的特征在于,至少一个气体激光器包括复数个用于接收激光气体的谐振管,提供有复数个用于从谐振管散热的散热器,每一谐振管与散热器之一热连接,且每一散热器包括用于接收冷却液的微通道。
使用冷却液来吸收从气体激光器产生的热量和从气体激光器传导走热量可视为本发明的基本思路。微通道的提供导致了从微通道的墙面至其中接收的冷却流的尤其有效的热量转移。有利地,冷却液允许将热量运送远离气体激光器。用于从冷却液转移热量至周围的热交换器因而并未使气体激光器的最接近的周围升温,这将损害冷却效率。
微通道通常被称为具有高纵横比的通道,即高度与宽度的比例。他们可具有大约为1毫米的液压直径。通常,任何具有小于2mm或,可选地,小于1毫米的更小尺寸的通道可理解为微通道。
微通道冷却设备大多数通常用于有着高热密度的应用中。也就是说,一个非常局部的热源。因而,微通道冷却设备存在于电脑中来冷却处理器或CPU,举例来说,大量这样的通道可被制造在局部热源的附近。因此,这些设备的高热提取效率是基于为冷却剂来移除热量的相对较大表面区域的。
然而,低液压直径导致通过设备的流量为完全形成的或层状的。需要过大的泵来产生充足的流动速度以在这么小的通道内产生湍流。在典型的通道长度短小的微通道应用中,冷却效率的细小提高的确证明了强力泵的用途。
传统的二氧化碳激光器的设计庞大且热量分布在大的表面积上。这样的设计不利于微通道冷却,且这样的冷却装置不存在于传统的二氧化碳激光器。
然而,随着本发明的二氧化碳激光器的新颖设计,产生的热密度足够高,微通道可有效地应用。也期望将冷却系统的剩余部分保持的尽可能小。
冷却液通常可以是任何流体,例如:气体或液体。水、或具有比水更高的特定热容量的液体,可用作冷却液。优选地,冷却液适合于传统的空调的原理,这意味着,冷却液的蒸发温度低于气体激光器的工作温度。谐振管的热量足以汽化微通道内的冷却液,导致了谐振管的尤其良好的冷却。这样的冷却液的实例包括氢氟碳化物(HFCs)。
包括微通道的散热器也可被称为热收集器,因为其接受或吸收谐振管的热量。散热器的材料可以是任何合适于其内微通道制造的基板。优选地,散热器的材料被选择使得它的热膨胀系数与谐振管之一匹配。这保证了独立于待冷却的谐振管的温度的良好的热接触。谐振管和散热器间的热连接可通过机械接触得到。额外地或可选地,具有高传热系数的材料可插入到例如散热绝缘混合剂或导热胶间。
至少一个气体激光器可以是任何通常已知的种类,例如氦氖激光器、一氧化碳激光器、氩激光器、氮激光器,或准分子激光器。优选地,至少一个气体激光器为二氧化碳激光器,可以作为连续波(CW)或脉冲操作。激光气体可理解为对应于激光器类型的气体混合物,因而也可包括二氧化碳、氮气和氦气。
物体的标记可以是任何物体表面的可视化变化,举例来说,颜色或亮度的变化、雕刻或切割。标记可以是标志、字符或图片的一部分的一个点或一条线。也就是,至少一个气体激光器可被短时激活以在物体上产生点或激活设定的时间段来产生一定长度的线。
在本发明的上下文中,待标记物体可以是具有可能受到气体激光器的光影响的表面的任何项目或产品。尤其是,物体可以是包装,举例来说用于食品或饮料、水果或标签。应用的进一步领域包括在药片上打印或用于邮政物品的标签。物体的材料可包括除其他以外,塑料、纸张、金属、陶瓷、纺织品、复合材料或有机组织。
一个气体激光器的复数个谐振管互相连接形成一个共同三维空间,其中容纳激光气体。共同三维空间是密封的,这意味着激光气体不在常规操作中交换。相比于具有流动激光气体的激光器,这允许了紧凑的设计。然而,当流动气体激光器内的升温的激光气体可被轻易交换,封闭在密封管内的激光气体决定了对冷却的更严格的要求。
每一谐振管可以是直管。这些直管可与连接元件,即连接管,以一角度相连。为了定向产生在管内的激光从一管至相邻管,每一连接管可容纳一反射镜。
根据本发明一优选实施例,将表面扰动,例如台阶或其他突起的,引进至微通道的至少一个墙面,来用作扰乱层流的手段,并在微通道的墙面表面造成冷却液的边界层的破坏。对于转移至冷却液的热量来说,该边界层为高耐热性。边界层的破坏减少了该耐热性并提高微通道的冷却效率。这种方式下,不需要高流体速度的要求,更长的通道长度可被利用。有利地,瞬态湍流展示了将微通道的墙面上的加热的冷却液传送至微通道中心的涡流。与完全形成的层流相反,这导致了沿着微通道的截面具有相当均匀的温度分布,因而通过冷却液提高了热量吸收。
本发明另一优选实施例的特征在于,每一散热器的微通道大体上沿着各自谐振管的整体长度延伸,即谐振管与所述散热器热连接。有利地,热量可在管的整体长度上被吸收,这提高了冷却效率。当散热器安装至于相邻谐振管连接的连接管时,可实现坚稳设计。
一散热器的微通道可互相连接并以任何形状运行,优选地,以平行或蜿蜒状的图形运行。每一散热器可包括进口通道和出口通道,用于引导冷却液进入或流出各自散热器的微通道。
所有散热器的进口通道可以是流体连接至共同的供应线或软管,该供应线或软管输送已被冷却设备冷却的冷却液。所有的出口通道可对应连接至一共同的散热线,引走已被激光器加热的冷却液。
可选地,散热器的出口通道可与另一散热器的进口通道连接,使得只有一个进口通道与供应线连接,且只有一个出口通道与散热线连接。
优选地,对于每一谐振管,提供有至少一个电极,用于激发容纳在各自谐振管内的激光气体,且每一散热器成形为收纳各自散热器的微通道和至少一个电极的基体。每一基体可一体成型。该基体内,提供有微通道和电极。相反于各自谐振管提供另一电极,即位于散热器外。电极用作激发管内的激光气体。为此,他们通过电子线配有直流或交流电。优选地,可使用具有射频的交流电。
优选地,电极使用平面线圈激发,即线圈仅在二维平面延伸。这进一步最小化了需要的空间。
本发明标记仪器的一优选实施例的特征在于,提供有连接器或连接元件,尤其是插座或插头,用于连接脐带缆以导通冷却液至和远离标记仪器。因而,本标记仪器的情况下,用于消散冷却液的热量至环境的热抑制器不存在。脐带缆导引冷却液至位于标记仪器外的基本单元内的热抑制器。标记仪器的大小因而进一步减小。优选地,电源,举例来说,电池或用于转换线电压至合适于气体激光器的变压器,位于标记仪器外的基本单元内。那么标记仪器内电源不是必要的。然后,仪器的空间需求进一步减小。额外地,将由电源产生的热量的消散出仪器呈现为已过时的。
根据本发明另一示例性实施例,容纳冷却液的沟槽在谐振管表面形成。散热器可紧密附着在谐振管上,使得沟槽形成沿圆周方向封闭的通道。另外,散热器的至少一些微通道垂直于那些与各自微通道的散热器热连接的谐振管的纵轴延伸,且所述至少一些微通道与谐振管表面的凹槽流体连接。换句话说,散热器的至少一些微通道大体上垂直于形成在谐振管表面的凹槽。谐振管上的凹槽可具有与散热器的微通道相同的直径,并也可被称为微通道。凹槽可通过将散热器机械连接至谐振管被密封,即散热器可成形为由例如塑料、金属或陶瓷制成的板,并可覆盖谐振管表面的凹槽。散热器的微通道可成形为微射流或开在板上的洞。因为微通道非常接近热源,即激光气体,因此可实现效率增益。
对于凹槽可选地或额外地,谐振管可包括在墙面内的微通道,且这些微通道与散热器的微通道连接。
另外,优选地,至少部分谐振管围绕内部区域,且内部区域内设置有光学元件和/或电子器件。内部区域的部分围绕可理解为,内部区域与谐振管以至少为180°的中心角接壤,例如半圆。谐振管因而可形成开环或是闭环或圆。
通过谐振管的这种设置,所有管的总长度可远大于仪器的长度。电子器件可包括用于控制电极的驱动电路。光学元件可包括用于重定向由气体激光器发射的固定的反射镜、扫描镜或光波导。在内部区域内放置电子器件和/或光学元件对空间节约设计是有好处的。
与折叠式谐振管配置相反,在一个激光器内设置激光器的谐振管,以之字形或蜿蜒状图案互相紧靠,根据本发明的实施例,该设置允许在谐振管之间布置电子器件和光学元件。仪器的整体大小在这两种情况下是可比较的,但本发明的设计中谐振管间的距离更大。因而有利于促进谐振管的冷却。另外,谐振管的更大表面可以使得与散热器热连接。
根据本发明一优选实施例,仪器进一步包括光束传输装置,例如至少一个用于定向激光束或光束至内部区域的反射镜。光束传输装置由气体激光器的输出耦合反射镜形成通常也是可能的。在这个情况下,每一气体激光器的谐振管尾部可指向内部区域的方向。另外,内部区域内提供有偏转装置,用于定向激光束至待标记物体的方向。对于每一激光束,偏转装置可包括至少一个偏转装置,对于每一激光束尤其包括至少一个,优选地为至少两个反射镜或光波导,用于单独偏转每一激光束至期望方向。即,每一偏转装置在其偏转方向可单独调整和/或单独移置的。优选地,偏转装置由控制单元机动化地调整,尤其是用于执行一扫描移动。
本发明另一优选实施例的特征在于,提供有复数个包含至少一个气体激光器的气体激光器。另外,提供有一控制单元,根据待标记的标志,用于单独激发每一气体激光器来发射激光束。每一气体激光器包括至少部分围绕内部区域的复数个谐振管,并且气体激光器被堆叠在彼此的顶部,使得气体激光器之一的每一谐振管与另一气体激光器的谐振管之一平行对准。
换句话说,气体激光器之一的每一复数个谐振管包括第一谐振管及至少一个第二谐振管,所有第一谐振管被堆叠并互相平行对准,且所有第二谐振管被堆叠并互相平行对准。该实施例中,由气体激光器发射的激光束形成了激光束的阵列,尤其是具有互相平行行进的激光束的线性阵列。
优选地,那些被堆叠并互相平行对准的谐振管在复数个散热器外共享一个散热器,其中该散热器与所有所述平行的谐振管热连接。换句话说,不同气体激光器的互相平行延伸的所有谐振管被堆叠在彼此的顶部并共享一个散热器。
本发明仪器一优选实施例的特征在于,每一气体激光器包括连接元件,与各自激光器的相邻谐振管连接来形成共同的管状空间,气体激光器的连接元件各自包括一内腔,与至少两个相邻的同连接元件连接的谐振管流体连接。
根据本发明另一优选实施例,每一气体激光器的谐振管设置为三角形、矩形、多边形、一个正方形、开环或闭环,或为U形的形状。术语“闭环”可理解为提供有一连接元件,容纳用于反射激光至气体激光器内部背面的气体激光器的端面镜,及用于发射激光束的部分反射输出耦合器。相应地,术语“开环”可理解为一个气体激光器的端面镜和输出耦合器被收纳在不同尾端元件,即不在一个连接元件。
闭环的设计中,激光气体可形成一整圈,也可分割在容纳输出耦合器和端面镜的连接元件内。
本发明进一步涉及一种标记设备,包括上述的标记仪器,且进一步包括了用于通过微通道泵送冷却液的泵。该泵可以是任何通常已知的种类。泵的一个实例为使用外部电场的电渗泵,举例来说,通过微孔玻璃原料,在冷却液内移动离子。简单的离子拖动造成了冷却液的净运动。
根据本发明标记设备的另一示例性实施例,所有气体激光器被收纳在第一外壳。然而,所述泵被收纳在第二外壳或基体单元。第二外壳内也可提供有用于将冷却液的热量消散至外界的热抑制器。第一外壳和第二外壳与脐带电缆相连。因而标记仪器大小减少。由于脐带电缆是柔软的,标记仪器的可移动性增强。可提供一电机设备用来使标记仪器相对于第二外壳移动。
抽运功率可进一步依靠谐振管的温度调整。为了检测该温度,可在收纳谐振管的第一外壳内或可在收纳泵和热抑制器的第二外壳内提供热传感器。在后者的情况下,温度传感器可检测由谐振管加热的冷却液的温度。在温度传感器收纳在第一外壳内的情况下,温度传感器可设置在谐振管之一的表面上。可选地,温度传感器可成形为电阻,被收纳在同一基体内,作为电极之一,用于激发激光气体。
附图说明
以下本发明参照示出在附图中的优选实施例更详细地描述,其中:
图1示出了本发明标记仪器的气体激光器的部分的示意性透视图;
图2示出了本发明标记仪器的气体激光器的示意图;
图3示出了本发明标记仪器的复数个气体激光器;
图4示出了本发明标记仪器的实施例;
图5示出了本发明标记仪器的另一实施例;及
图6示出了本发明标记设备的实施例。
所有附图中等同的组件具有各自相同的附图标记。
具体实施方式
图1概略示出了本发明标记仪器的气体激光器的部分。其中描绘的是谐振管之一12级散热器30和电极20,31。
谐振管12充斥有激光气体。谐振管的端部与连接元件(未示出)连接,以形成一密封三维空间。
为了激发激光气体,每一谐振管12提供有两电极20,31。散热器30被收纳在或直接附着于电极20。
电极20在谐振管12的完整长度上,即轴向方向上,与其接触。朝向谐振管12的电极20的表面具有凹面形状,匹配谐振管12的凸面形状来形成大的接触区域。优选地,接触区域在谐振管12的至少四分之一圆周长度上延伸。为了避免空气间隙,电极20可与谐振管12对压。可选地或额外地,热化合物可在其间插入。
散热器30的材料优选地展示出高热传递系数。为此,可使用铜或铝。在散热器30内形成有用于传导冷却液的微通道。冷却液通过入口微通道被引入,垂直于谐振管12的纵轴运行。进口微通道与一个或几个沿着谐振管12的纵轴延伸的纵向微通道连接。这些微通道与出口微通道连接,通过出口微通道冷却液能从散热器30被抽出。出口微通道因而也可被称为散热微通道。
在气体激光器的操作中,激光气体和谐振管12加热升温。高温将使产生激光的效率下降,甚至可能阻止产生激光。因而多余的热量需要消散。为此,提供具有微通道的散热器30。首先,散热器30通过电极20吸收谐振管12的热量。这导致了微通道中的冷却液受热。微通道可具有非常小的尺寸,例如小于2mm或甚至小于1mm。微通道内,或至少是纵向微通道内,由于每一微通道的墙面上的扰动,冷却液湍流流动。湍流提高了散热器和冷却液间的热传递。
纵向微通道的数量可多于进口或出口微通道的数量。这个情况下,进口和出口微通道的截面可成形为大于纵向微通道的截面,且可与所有结合的纵向微通道的截面相同。
参阅图2,概略示出了气体激光器10a。气体激光器10a包括复数个谐振管12。在示出的实施例中,由四个谐振管12,构成一个矩形。然而,通常可提供任何数量的谐振管,被设置为凸面或类似圆的方式。
该矩形的三个角上,提供有用于连接相邻谐振管12的连接元件16。这些连接元件16成形为中空管,使得一共同气体三维空间通过谐振管12成形。该共同气体三维空间为密封的,来避免激光气体的泄露。
容纳在共同气体容积的混合气体保持不变是至关重要的,因为变化可能减小发出激光的效率。为了减缓变化,提供额外的气藏,即气管13。该气管13充斥有激光气体但不配备有电极,即气管13内的气体不在激光器10的操作中激发。气管13被平行于谐振管12之一设置,并形成了一具有谐振管12的共同气体三维空间。为此,至少两个连接元件16包括额外开口,其与气管13连接。
矩形谐振管设置的第四个角上,相邻的谐振管12由容纳由端面镜15和输出耦合器18的连接元件17支撑。在示出的实例中,气体三维空间的一端以端面镜15截止,另一端以输出耦合器18截止,从而连接元件17内没有气体连接。
输出耦合器18可以是输出激光束的部分反射镜。激光束由光束传输装置19重定向。这些可通过与连接元件17的外表面连接的反射镜19构成。反射镜19通过连接元件17内的开口定向激光束至内部区域5,即区域5被谐振管12封闭。内部区域5内,可提供有另一用于偏转激光束至待标记物体的方向上的光学元件。
图2中虽然只示出一个激光器10a,但是优选地,提供复数个气体激光器。每一气体激光器如图2中所示的成形。尤其是,每一气体激光器可在内部区域包括其自己的电极、输出耦合器、背光镜和光学元件。
图3描绘了这样的复数个气体激光器。该实例中,复数个气体激光器10包括9个气体激光器。他们设置在彼此的顶部。即,第一气体激光器的每一谐振管上放置有第二气体激光器的谐振管。
气体激光器10共享共同的连接元件16、17。因此,每一连接元件16包括每一气体激光器的用于连接两个谐振管的开口。在描绘的具有9个激光器,即18个开口的实施例中。这提高了稳定性而减少了制造成本。优选地,在连接元件16内不同气体激光器的气体三维空间互相连接。由于一个气体激光器的谐振管内的气体交换被散布并由此在所有的气体激光器上被稀释,这提高了激光混合气体的一致性和稳定性。另外,通过互相连接连接元件16内不同激光器的气体三维空间,具有额外气体(未示出)的气管足够用于所有激光器10。
为了将激光束从气体激光器的谐振管12重定向至同一激光器的另一谐振管12,每一连接元件16包括一反射镜。优选地,连接元件16具有额外的开口,使得反射镜可从外部附着于该开口。这促使了标记仪器的组装。
共同连接元件17每一激光器包括一输出耦合器18及背光镜15。如果共同连接元件17包括接近于输出耦合器18和/或背光镜15的额外开口的话,制造进一步简化。即,共同连接元件17可在四侧具有开口,其中两侧连接有谐振管12,而输出耦合器18和背光镜15从外部附着于剩余两侧的开口。
每一气体激光器10的每一谐振管12配有其自有的电极20,31,用于激发激光气体。通过堆叠的谐振管12,面向内部区域的电极31和处于谐振管12的相对侧的电极20同样被堆叠。优选地,一堆谐振管的所有电极31位于第一共同基板内或上。一堆谐振管的电极20同样被设置在第二共同基板内或上。
在谐振管12的外侧,即谐振管对立于内部区域5的一侧,提供有散热器30。优选地,每一堆谐振管12与一共同散热器30热连接。一共同散热器30内的微通道因而吸收整个对应的谐振管12堆的热量。
采用共同的散热器允许了每一共同散热器仅提供一个进口微通道和一个出口微通道。这有助于减少了设计的复杂性。
通常,共同散热器30或电极20可靠近谐振管12堆被设置。在共同散热器靠近,即谐振管12和电极20间夹持的情况下,进口和出口微通道通过上部或内部安装有电极的第二共同基板延伸。
共同散热器30和具有电极的第二共同基板可互相机械连接或通过共同基体形成。这有助于进一步减少标记仪器的大小。
在图3示出的实例中,内部区域5收纳电极,举例来说,用于控制电机20,31的驱动电路。然而,发射的通过输出耦合器18的激光束并未被定向至内部区域5。
图4描绘了本发明标记仪器100的另一示例性实施例。如之前的实例,标记仪器100包括复数个气体激光器10,每一激光器包括用于发射激光束的输出耦合器。
然而,在这种情况下,发射的激光束被定向至内部区域5。为此,连接元件17由第一和第二连接部分17a、17b成形。第二连接部分17b每一气体激光器具有两个开口,用于气体激光器的谐振管12的连接。另外,第二连接部分17b每一气体激光器具有两个额外开口,开口接近于背光镜15及输出耦合器18。光束传输装置19例如反射镜19与第一连接部分17a连接,用于重定向通过输出耦合器18发射的激光束至内部区域5内。
在内部区域5内,进一步地布置有光学元件7及电子元件6。光学元件7可包括一偏转装置组8,每一气体激光器具有一偏转装置,即反射镜或光波导。因而偏转装置组8允许单独重定向每一发射的激光束。光学元件7可进一步包括一个或两个振镜扫描器9,各自具有一反射镜,其上照射有所有气体激光器的激光束。具有振镜扫描器9后,激光束可在标记仪器100的视图的领域内被扫描。
图5中,示出了本发明标记仪器100的另一实施例。这里,每一气体激光器包括三个设置为U形的谐振管12。该U形的两支柱间的空间可理解为内部区域5。该U形的一端以第一连接元件截止,该端连接有背光镜15而非输出耦合器18。类似地,U形的另一端以第二连接元件截止,该端仅提供有输出耦合器18而不是背光镜15。
提供有一连接器40例如公接口或母接口,用于连接脐带电缆。通过该连接器40,冷却液可进入仪器并可通过微通道导引。在微通道内加热后,冷却液可通过连接器40退出仪器。
连接器40可进一步包括电触点,使得标记仪器100可通过脐带电缆配有电功率。
图6示出了本发明标记设备120的实施例。标记设备120包括至少一个标记仪器100,被收纳在第一外壳101内。在描绘的实例中,有四个标记仪器100,每一标记仪器被容纳在各自的第一外壳101内。优选地,第一外壳101是防尘的,并提供水防护防止高达至少一米的浸泡。
对于每一标记仪器100,设备120包括一基体单元,由收纳用于各自标记仪器100的电源和冷却设备的第二外壳102形成。每一标记仪器100与其基体单元102通过脐带电缆50连接。该脐带电缆50为柔性的,因而允许相对于基体单元102灵活放置每一标记仪器100。
另外,控制模块103内提供有一控制单元25,即在一单独的壳体103内。控制单元25与每一基体单元102连接,适用于通过基体单元102和脐带电缆50激发标记仪器100。
基体单元102的冷却设备各自包括用于泵送冷却液的泵。冷却设备可以是无源的,即没有用于冷却的电能。在这个情况下,由激光器加热的冷却液可由热交换器降温。在有源的冷却设备的情况下,冷却液额外地或可选地由使用电能冷却,举例来说,使用热电元件。
有利地,创建了具有尤其小设计的标记仪器。使用冷却液扰动流过的微通道可取得高效冷却。标记仪器的空间需求可进一步通过移除电源、电子部件和/或冷却设备至单独第二外壳来减少,使得标记仪器可自由移动,举例来说,使用电机,相对于第二外壳移动。另外,产生在标记仪器内的热量通过脐带电缆远远导出。从冷却液转移至环境的热量并未加热标记仪器接近的周围。有利地提高了冷却效率。
Claims (12)
1.使用激光标记物体的标记仪器,
包括至少一个气体激光器(10),用于发射至少一束激光束来标记物体,
其中至少一个气体激光器(10)包括复数个谐振管(12),用于接收激光气体,
其中提供有复数个散热器(20),用于消散谐振管(12)的热量,
其中每一谐振管(12)与散热器(20)之一热连接,
其特征在于
每一散热器(20)包括微通道,用于接收冷却液,微通道较小的尺寸小于2毫米,且
每一微通道的至少一个墙面具有扰动,尤其是突起,从而冷却液展现出流动般的湍流。
2.如权利要求1所述的标记仪器,其特征在于
每一散热器(30)的微通道大体上沿着各自谐振管(12)的整体长度延伸。
3.如权利要求1或2所述的标记仪器,其特征在于
对于每一谐振管(12),提供有一电极(20),用于激发被容纳在谐振管(12)内的激光气体,且
每一散热器(30)成形为基体,收纳散热器(30)和至少一个电极(20)的微通道。
4.如权利要求1至3任一项所述的标记仪器,其特征在于
提供有一连接器(40),尤其是接口(40),用于连接脐带电缆,传导冷却液进入或远离标记仪器(100)。
5.如权利要求1至4任一项所述的标记仪器,其特征在于
每一气体激光器(10)的谐振管(12)至少部分围绕一内部区域(5),且光学元件(7)和/或电子器件设置在内部区域(5)内。
6.如权利要求5所述的标记仪器,其特征在于
仪器进一步包括
-光束传输装置(19),用于定向激光束至内部区域(5)和
-偏转装置(8),用于定向激光束至待标记物体的方向,且
偏转装置(8)设置在内部区域(5)内。
7.如权利要求1至6任一项所述的标记仪器,其特征在于
提供有复数个气体激光器(10),包含至少一个气体激光器(10),
提供有一控制单元(25),用于单独激活每一气体激光器来根据待标记标志发射激光束,
每一气体激光器(10)包括复数个至少部分围绕内部区域(5)的谐振管(12),且
气体激光器(10)被堆叠在彼此的顶部,从而气体激光器(10)之一的每一谐振管(12)与另一气体激光器(10)的谐振管之一平行对准。
8.如权利要求7所述的标记仪器,其特征在于
那些被堆叠并互相平行对准的谐振管(12)在复数个散热器(30)外共享一散热器(30),其中该散热器(30)与所有所述被堆叠并互相平行对准的谐振管(12)热连接。
9.如权利要求1至8任一项所述的标记仪器,其特征在于
每一气体激光器(10)的谐振管(12)设置为U形或三角形、长方形、正方形、或开环或闭环。
10.如权利要求1至9任一项所述的标记仪器,其特征在于
每一气体激光器(10)包括连接元件(16),与各自气体激光器(10)的相邻谐振管(12)连接,以形成一共同管状空间,
气体激光器(10)的每一连接元件(16)包括内腔,与连接于连接元件(16)的至少两个相邻谐振管(12)流体连接。
11.标记设备,其特征在于
提供有如权利要求1至10任一项所述的标记仪器(100),及
提供有一泵,用于通过微通道泵送冷却液。
12.如权利要求11所述的标记设备,其特征在于
至少一个气体激光器(10)收纳在第一外壳(101)内,
泵收纳在第二外壳(102)内,
第二外壳(102)内提供有热抑制器,用于消散冷却液的热量至环境,且第一外壳(100)和第二外壳(102)与脐带电缆(50)连接。
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EP11007187.5A EP2564976B1 (en) | 2011-09-05 | 2011-09-05 | Marking apparatus with at least one gas laser and heat dissipator |
EP11007187.5 | 2011-09-05 | ||
PCT/EP2012/003071 WO2013034216A1 (en) | 2011-09-05 | 2012-07-19 | Marking apparatus with at least one gas laser and heat dissipator |
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Also Published As
Publication number | Publication date |
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EP2564976A1 (en) | 2013-03-06 |
BR112014003930A2 (pt) | 2017-03-14 |
WO2013034216A1 (en) | 2013-03-14 |
EP2564976B1 (en) | 2015-06-10 |
EA201490245A1 (ru) | 2014-09-30 |
ES2544034T3 (es) | 2015-08-27 |
CN103764334B (zh) | 2015-08-26 |
US20140209580A1 (en) | 2014-07-31 |
US10236654B2 (en) | 2019-03-19 |
EA024428B1 (ru) | 2016-09-30 |
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