CN113168447A - 传感器电路 - Google Patents

传感器电路 Download PDF

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Publication number
CN113168447A
CN113168447A CN201980078662.1A CN201980078662A CN113168447A CN 113168447 A CN113168447 A CN 113168447A CN 201980078662 A CN201980078662 A CN 201980078662A CN 113168447 A CN113168447 A CN 113168447A
Authority
CN
China
Prior art keywords
printing liquid
supply unit
liquid supply
sensor
examples
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201980078662.1A
Other languages
English (en)
Inventor
A·D·斯图德
D·奥尔森
Q·B·韦弗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Development Co LP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from PCT/US2018/063624 external-priority patent/WO2020117193A1/en
Priority claimed from PCT/US2018/063630 external-priority patent/WO2020117194A1/en
Priority claimed from PCT/US2018/063631 external-priority patent/WO2020117195A1/en
Priority claimed from PCT/US2018/063643 external-priority patent/WO2020117198A1/en
Priority claimed from PCT/US2018/063638 external-priority patent/WO2020117197A1/en
Application filed by Hewlett Packard Development Co LP filed Critical Hewlett Packard Development Co LP
Priority claimed from PCT/US2019/042467 external-priority patent/WO2020117324A1/en
Publication of CN113168447A publication Critical patent/CN113168447A/zh
Pending legal-status Critical Current

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Abstract

本文中描述了打印液体供应单元的示例。在一些示例中，打印液体供应单元包括调节器组件。在一些示例中，调节器组件包括至少部分地可膨胀或可收缩的压力室。在一些示例中，打印液体供应单元包括端口。在一些示例中，打印液体供应单元包括在打印液体储器中被定位在调节器组件和端口之间的传感器电路。

Description

传感器电路
相关申请的交叉引用
本申请涉及并要求于2018年12月3日针对“逻辑电路”提交的PCT国际申请号第PCT/US2018/063643号以及于2019年4月5日针对“逻辑电路”提交的PCT国际申请第PCT/US2019/026145号的优先权，其要求以下各者的优先权：于2018年12月3日提交的PCT国际申请第PCT/US2018/063631号、于2018年12月3日提交的国际申请第PCT/US2018/063624号、于2018年12月3日提交的国际申请第PCT/US2018/063630号、于2018年12月3日提交的国际申请第PCT/US2018/063638号、以及于2018年12月3日提交的国际申请第PCT/US2018/063643号。
背景技术
一些类型的打印利用液体。例如，一些类型的打印将液体挤出到介质或材料上以产生打印产品(例如，二维(2D)打印内容、三维(3D)打印对象)。在一些示例中，可利用打印头来将墨水挤出到纸上以打印文本和/或图像。在一些示例中，可利用打印头来将定影剂挤出到材料上，以便形成3D打印对象。
附图说明
图1是图示打印液体供应单元的示例的图；
图2A是图示打印液体供应单元的本体的示例的图；
图2B是图示打印液体供应单元的盖子的示例的图；
图2C是图2A中所图示的本体的示例的横截面图；
图2D是图2A中所图示的本体212的示例的一部分的放大图；
图3A是图示打印液体供应单元的一部分的示例的图；
图3B是图示打印液体供应单元的一部分的示例的图；
图3C是结合图3B所描述的打印液体供应单元的该部分的示例的透视图；
图3D是结合图3B和图3C所描述的打印液体供应单元的该部分的示例在附接了传感器支撑件之后的透视图；
图4A是图示打印液体供应单元的本体的示例的图；
图4B是图示结合图4A所描述的本体的一部分的放大图的图；
图4C是打印液体供应单元的盖子的图；
图4D是图示结合图4C所描述的盖子的示例的一部分的放大图的图；
图4E是图示结合图4C和图4D所描述的支撑肋的示例的一部分的透视图的图；
图5示出了示例打印液体供应盒；
图6是图5的示例打印液体供应盒穿过线C-C的横截面图；
图7示出了另一个示例打印液体供应盒；
图8A和图8B是另一个示例打印液体供应盒的透视图；以及
图9是示例盒的一部分的放大图。
具体实施方式
在利用打印液体的背景下出现了一些问题。打印液体是用于打印的流体。打印液体的示例包括墨水和定影剂。在一些示例中，由于诸多问题(比如，液体桥接、环境条件和降低的水蒸气透过率)所致，可能难以准确地感测留在储器(reservoir)中的打印液体的量。不准确地感测到的液体液位可导致更经常地更换打印液体供应单元、浪费打印液体和/或增加打印费用。因此，提供更多的所输送的打印液体、更可靠的感测到的打印液体液位和/或更少的墨水供应变化可以是有益的。
可利用一个传感器或多个传感器来增加打印液体液位感测准确度。(多个)传感器可被收容在打印液体供应单元中。打印液体供应单元是容纳打印液体的容器。在一些示例中，打印液体供应单元可称为打印液体容器、盒、供应件、打印液体供应盒等。在一些示例中，(多个)传感器可被收容在可称为储器的打印液体容纳部分中。在一些示例中，(多个)传感器可感测打印液体液位和/或应变或压力。
感测打印液体的一些问题可包括桥接。例如，由于一些打印液体包括一种表面活性剂或多种表面活性剂，因此打印液体可倾向于在打印液体容器中的部件之间桥接，这可能降低感测打印液体液位的准确度。在一些情况下，可能难以将(多个)传感器定位在打印液体容器的可以准确地测量低打印液体液位的位置中。在一些示例中，(多个)传感器可通过物理接触而被损坏。例如，接触(多个)传感器的另一个部件或另外多个部件可损坏(多个)传感器，这可能降低感测准确度和/或引起(多个)传感器失效。在一些情况下，打印液体容器的结构部件可能干扰(多个)传感器的放置。
在一些示例中，可针对打印机利用四个打印液体供应单元，其可包括黑色、青色、品红色和黄色打印液体供应件。这可允许单独地替换具有颜色的打印液体供应件。例如，可单独替换更经常地使用的打印液体颜色，而不替换剩余的另一种颜色或另外多种颜色的打印液体。
可将打印液体供应给打印机。例如，可将打印液体从打印液体供应单元提供到打印头组件。打印头组件是包括用以挤出打印液体的打印头的装置。
在一些示例中，打印液体供应单元可由热塑性塑料构造。热塑性塑料可以是注射模制的，并且可与大批量制造和/或组装方法兼容。可有益的是，构造材料(例如，用以构造打印液体供应件的部件的材料)与打印液体兼容、在运送/处理期间对环境条件具有稳健性和/或提供目标水蒸气透过率，使得在打印液体供应单元的寿命内维持打印质量。在一些示例中，打印液体供应单元可由热塑性塑料构造而成，诸如聚丙烯(PP)、低密度聚乙烯(LDPE)、高密度聚乙烯(FIDPE)、聚对苯二甲酸乙二醇酯(PET)、聚碳酸酯(PC)和/或其掺合物。一些热塑性塑料可与大批量组装方法兼容，诸如超声波焊接、振动焊接和/或激光焊接。在一些示例中，焊接(例如，激光焊接)可能够形成防水接头密封以容纳打印液体。如本文中所使用的，“焊接(welding/weld)”及其变型可表示激光焊接、超声波焊接和/或振动焊接。用于联结部件的其他方法的示例可包括使用粘合剂。
贯穿附图，类似的附图标记可标示类似但不一定相同的元件。类似的数字可指示类似的元件。当在没有附图标记的情况下指代元件时，这可通常可指代该元件，而不必限于任何特定的图。各附图不一定按比例绘制，并且一些零件的大小可被放大以更清楚地图示所示的示例。此外，附图提供了根据描述的示例和/或实施方式；然而，该描述不限于附图中所提供的示例和/或实施方式。
图1是图示打印液体供应单元100的示例的图。打印液体供应单元100的示例包括打印液体容器、盒、供应件、打印液体供应盒等。打印液体供应单元100可容纳和/或转移打印液体(例如，墨水、剂等)。在一些示例中，打印液体供应单元100可被设计成与主装置接合。主装置是使用和/或施加打印液体的装置。主装置的示例包括打印机、喷墨打印机、3D打印机等。例如，当已利用了一些或所有打印液体时，补充或替换打印液体供应单元100可以是有益的。
在一些示例中，打印液体供应单元100可以包括调节器组件102。调节器组件102是用以调节打印液体供应单元100内的压力的装置。调节器组件102可包括一个部件或多个部件。例如，调节器组件102可包括压力室104。压力室104是至少部分地可膨胀和/或可塌陷的结构。例如，压力室104可容纳气体(例如，空气)或流体。在一些示例中，压力室104可在充气时膨胀和/或可在放气时塌陷。压力室104和/或调节器组件102的示例可包括袋或气球。在一些示例中，调节器组件102可包括弹簧和/或杠杆。可将弹簧和/或杠杆与压力室104(例如，袋或气球)一起利用，以调节打印液体供应单元100中的压力。压力室104和/或调节器组件102的另一个示例是在打印液体供应单元100的结构(例如，(多个)肋结构)上的膜。
在一些示例中，打印液体供应单元100可包括端口106。端口106是打印液体供应单元100中的开口。端口106的示例是打印液体出口。例如，打印液体供应单元100可经由端口106将打印液体供应给打印机(例如，打印头)。
在一些示例中，打印液体供应单元100可包括传感器电路108。传感器电路108是用以检测一个条件或多个条件的电子电路。在一些示例中，传感器电路108可包括液体液位传感器和/或应变或压力传感器。在一些示例中，传感器电路108可安装在传感器支撑件之上和/或之中。传感器支撑件是支撑(例如，承载)传感器电路108的结构。在一些示例中，传感器支撑件可以是基板或板。在一些示例中，传感器支撑件可由玻璃填充的工程塑料模制而成，以达到稳定性并承受固化温度以用粘合剂来附接和保护传感器支撑件上的所有部件。在一些示例中，传感器电路108可用粘合剂附接到支撑件。可针对传感器电路108的一部分或全长利用粘合剂。例如，可将粘合剂施加到传感器支撑件。可将传感器电路108放置在粘合剂上，然后可使粘合剂固化。在一些示例中，传感器支撑件可包括一个槽或多个槽，以将传感器支撑件和传感器电路附接到打印液体供应单元100(例如，附接到第一壳体部件、盖子等)。
在一些示例中，传感器电路108可包括液体液位传感器(例如，数字液体液位传感器)和/或应变或压力传感器。在一些示例中，可利用来自传感器电路108的测量值来确定打印液体液位。在一些示例中，传感器电路108(例如，液体液位传感器)可包括加热器阵列和热传感器。例如，传感器电路108可激活加热器阵列并测量不同液位处的温度。较低的温度可对应于低于打印液体液位的加热器和/或热传感器。更高的温度可对应于高于打印液体液位的加热器和/或热传感器。所测量的温度可指示打印液体由于打印液体和空气的不同比热所致的液位。
在一些示例中，液体液位传感器可横跨全范围的潜在打印液体液位。例如，液体液位传感器可从储器110的底部延伸到储器110的顶部，以检测全范围的打印液体液位。在一些示例中，液体液位传感器可横跨部分范围的潜在打印液体液位。例如，传感器电路108可针对打印液体储器110的液位范围的一部分检测打印液体液位。例如，传感器电路108可检测50％或更小的打印液体液位。可实施其他范围(例如，90％或更小、75％或更小、60％或更小、30％或更小、25％或更小等)。在一些示例中，可利用多种技术来测量打印液体液位。例如，可利用液滴计数来测量在50％和100％之间的打印液体液位，而传感器电路108(例如，液体液位传感器)可测量在0％和100％之间的打印液体液位。
在一些示例中，传感器电路108可包括应变传感器或压力传感器。例如，传感器电路108可包括一个应变仪或多个应变仪、(多个)压电压力传感器、(多个)电磁压力传感器和/或(多个)电容性压力传感器等。例如，应变传感器或压力传感器可提供指示对应于应变或压力的电阻、电感和/或电容变化的测量值。在一些示例中，应变传感器或压力传感器可测量打印液体供应单元100的结构应变(例如，打印液体供应单元100的壁的挠曲变形)和/或储器110中的压力。
在一些示例中，传感器电路108可包括打印液体液位传感器和应变或压力传感器。因此，传感器电路108可提供指示打印液体供应单元100的打印液体液位和应变或压力的测量值。
在一些示例中，传感器电路108可在打印液体储器110中被定位在调节器组件102和端口106之间。打印液体储器110是打印液体供应单元100中的容积。打印液体储器110可容纳打印液体。传感器电路108可被定位在调节器组件102(例如，压力室104)和端口106之间，以便提供改善的测量能力和/或避免与可能损坏传感器电路108的一个结构或多个结构接触。例如，当小于一定量(例如，小于100％、60％、50％、40％、30％、20％、10％、5％、2％等)的打印液体留在打印液体供应单元100中时，通过端口106来定位传感器电路108可允许准确地测量打印液体液位。将传感器电路108定位在距调节器组件102(例如，压力室104)一定距离处可避免在压力室104膨胀和/或塌陷时损坏传感器电路108。在一些示例中，传感器电路108可被定位成以便减少和/或避免打印液体中的桥接。例如，传感器电路108可远离(distanced)端口106和/或调节器组件102(例如，压力室104)，以便减少在打印液体供应单元100中的结构之间桥接打印液体。
在一些示例中，打印液体供应单元100可包括第一壳体部件和第二壳体部件。第一壳体部件和第二壳体部件是用于容纳打印液体的结构。例如，第一壳体部件可联结到第二壳体部件以形成打印液体储器110。在一些示例中，第一壳体部件和第二壳体部件可由热塑性塑料或热塑性塑料的组合制成。在一些示例中，第一壳体部件可以是打印液体供应单元的盖子，且第二壳体部件可以是打印液体供应单元100的本体。在一些示例中，第一壳体部件可沿着供应件接头焊接和/或联结到第二壳体部件。供应件接头是第一壳体部件和第二壳体部件之间的接口。在一些示例中，可使用激光焊接、超声波焊接、振动焊接和/或粘合剂将第一壳体部件焊接和/或联结到第二壳体部件。
在一些示例中，传感器电路108可耦接到一个导体或多个导体。导体是一种能够传导电或电信号的材料。例如，导体可以是金属线或带。在一些示例中，导体可用保护材料包覆模制。保护材料可保护导体而免于与打印液体接触，与打印液体接触可使导体退化。(多个)导体可从打印液体供应单元100的内部穿过供应件接头或打印液体供应单元100的壁布线到打印液体供应单元100的外部。在一些示例中，导体可耦接到打印液体供应单元100的外部上的电接口(例如，(多个)电连接衬垫)。在一些示例中，可利用电接口来与打印机通信。
图2A是图示打印液体供应单元的本体212的示例的图。本体212可以是结合图1所描述的第二壳体部件的示例。
图2B是图示打印液体供应单元的盖子214的示例的图。盖子214可以是结合图1所描述的第一壳体部件的示例。
图2C是图2A中所图示的本体212的示例的横截面图。图2D是图2A中所图示的本体212的示例的一部分的放大图。为了清楚起见，将一起描述图2A、图2B、图2C和图2D。
在一些示例中，本体212和盖子214可联结以形成打印液体供应单元(例如，打印液体容器、盒、打印液体供应盒等)。当本体212和盖子214联结时，用于打印液体的储器210可被封闭。图2A-D图示了可在内部被收容在打印液体供应单元中的一些部件的示例。
在该示例中，打印液体供应单元的调节器组件可包括压力室204(例如，袋)、弹簧板216和杠杆218。调节器组件可将背压提供给打印液体供应单元。在图2A中，压力室204被图示为在本体212内部，其中压力室204(例如，袋)的一些边缘可沿着本体212的一些边缘折叠。可针对压力室利用不同的形状，和/或压力室可在操作期间改变形状。例如，在操作阶段中，压力室204可被成形为长椭圆形。在一些示例中，弹簧板216和/或杠杆218可被安装到盖子214。在一些示例中，传感器电路208和/或传感器支撑结构220可安装到盖子214。在一些示例中，可利用其他类型的调节器组件。例如，可将其他机械调节器组件和/或毛细管介质组件与用于传感器电路208的储器210一起利用。例如，调节器组件可替换为泡沫块，该泡沫块处于类似的位置中以在储器或墨水室中工作(例如，与传感器电路208一起)。
在一些示例中，打印液体供应单元(例如，本体212)可包括端口206、填充端口236和/或空气接口端口234。填充端口236是用于向打印液体供应单元填充打印液体的端口。空气接口端口234是用于使压力室204充气和/或放气的端口。可利用端口206来供应打印液体。在图2A中所图示的示例中，利用橡胶隔片(septum)、球和弹簧来控制端口206进入。在其他示例中，端口可包括和/或利用分裂隔片或膜。在图2A和图2D中，为了清楚起见，传感器电路208和传感器支撑结构220被图示为叠加在本体212上。
在一些示例中，通过填充端口236来填充打印液体供应单元。可利用塞子(例如，塑料软木塞)来闭合(例如，密封)填充端口236。可经由端口206移除在用打印液体填充之后留在打印液体供应单元中的一些(例如，大部分)空气。在移除空气之后，可形成内部真空，该内部真空使压力室204(例如，袋)充气，同时受弹簧板216抵制。压力室204中的容积的大小可设置成在温度和/或高度变化期间将压力调节(例如，维持)到打印液体供应单元内部的目标范围内、和/或防止内部超压。
在一些示例中，当将打印液体供应单元安装在打印头组件中时，第一公针与端口206接合，且第二公针与空气接口端口234接合。当使用打印液体并通过端口206将其从打印液体供应单元移除时，压力室204充气并推动盖子214中的杠杆218，这可打开端口以允许空气以气泡形式进入打印液体供应单元中。压力室204可相应地放气以调节打印液体供应单元中的压力。当从打印液体供应单元中排放打印液体时(例如，当大部分或所有打印液体已被排出时)，一些空气可穿过端口206(例如，穿过第一公针)进入打印头组件中。
在一些示例中，当安装新的打印液体供应单元时或当将要清洗打印头以进行维修时，打印机中的空气泵可用于通过空气接口端口234使压力室204充气(例如，过度充气)。当压力室204被充气到一定程度时，盖子214和/或本体212可挠曲(例如，凸出)。例如，盖子214的壁和/或本体212的壁可挠曲。在一些示例中，压力室204可被充气以占据打印液体供应件内部的更多容积，这可引起挠曲。针对新安装的打印液体供应单元使压力室204充气可迫使打印液体进入打印头组件中，以在空气被推入打印液体供应单元中时灌注打印头。
在一些示例中，传感器电路可附接到打印液体供应单元。在图2A和图2B中所图示的示例中，传感器电路208和传感器支撑结构220附接到盖子214。当发生挠曲(例如，凸出)时，传感器电路208(例如，应变仪)可检测到挠曲。例如，传感器电路208可产生指示挠曲的测量值。在一些示例中，可将这些测量值传达到打印机。例如，可利用应变和/或压力传感器来提供反馈。例如，可利用传感器电路208来验证调节器组件和/或压力室是起作用的。在一些示例中，可利用传感器电路208来确定在打印液体供应单元中是否存在泄漏。
如图2A中所图示的，在部件之间没有潜在的机械干扰的情况下，打印液体供应单元(例如，调节器组件、压力室204)可不在打印液体供应单元的背面处为传感器电路提供开放的竖直区域。打印液体可潜在地在打印液体供应单元的背面处的部件之间桥接。如果传感器电路位于打印液体供应单元的背面处，则由于来自压力室204的水动力液体作用所致，可潜在地出现错误的测量值。
在一些示例中，传感器电路可包括传感器层。例如，可使用硅层来制造传感器电路。在一些示例中，应变仪可位于下(例如，底)层中，加热器可位于中间层(例如，在具有应变仪的层上方的层)中，并且热传感器可位于上层(例如，在硅的面上)上。当激活加热器时，热传感器可检测到空气和打印液体的存在之间的差异，这可指示打印液体液位。为了准确地检测打印液体供应单元中的液位，可有益的是，将打印液体从传感器中排流走。与水相比，可更难检测打印液体的液位，因为打印液体可包括一种表面活性剂或多种表面活性剂。表面活性剂可降低表面张力和/或可引起打印液体起泡。在一些示例中，表面和/或部件之间的物理间隙形成毛细管力，这可允许打印液体桥接和不可靠地排流。由于这些原因，将传感器电路(例如，垂直感测阵列)定位在打印液体供应单元的开放区域中可以是有益的。例如，具有足够空间以减少或消除桥接的区域可以是有益的。提供(例如，增加)打印液体从传感器中排流走的区域可以是有益的。
在一些示例中，传感器电路(例如，硅的感测面)可涂覆有保护层，以防止传感器电路随时间变得被蚀刻而暴露于打印液体。在一些示例中，保护层可以是易碎的。因此，避免传感器电路和一个内部部件或多个部件(诸如，压力室)之间的接触可以是有益的。
在图2A-D中所图示的示例中，打印液体供应单元的正面区域包括内部特征、表面和部件，这些部件包括空气接口端口234、填充端口236和端口206。为了减少或消除桥接和/或改进测量准确度，传感器电路208远离空气接口端口234、填充端口236和端口206。传感器电路208远离调节器组件(例如，压力室204)。在该示例中，传感器电路208和压力室之间的第一距离224是大约3.2毫米(mm)。
图2C图示了沿着线2C穿过传感器电路208、本体212和盖子214的横截面。在一些示例中，支撑结构220(例如，基板)和/或连接件可沿着端口特征延伸，而传感器电路208可紧挨着端口特征延伸。如图2D中所图示的，传感器电路208可针对储器210的液位范围的一部分222检测打印液体液位。例如，传感器电路208可为一定的液位范围提供感测，该液位范围是最大打印液体液位的大约一半和/或储器210高度的大约一半。传感器电路208到空气接口端口特征之间的第二距离226的示例是大约3.8mm。从传感器电路208的底部到储器210的底部的第三距离228的示例是大约2mm。从传感器电路208到填充端口特征的背面的第四距离230的示例是大约2mm。从传感器电路208到端口特征的第五距离232的示例是大约4.8mm。可实施不同的距离。在一些示例中，距离224、226、228、230、232可大于1mm、大于1.5mm、大于2mm、大于2.25mm或大于另一个距离。
图3A是图示打印液体供应单元的一部分的示例的图。该部分可以是结合图1所描述的第一壳体部件(例如，盖子)的一部分的示例。在图3A中，打印液体供应单元(例如，第一壳体部件或盖子的内部侧)可包括凹部339a、凸起的表面341a-c和支柱338a-b。凸起的表面341a-c是突出的表面。传感器支撑件(未示出)可落座在凸起的表面341a-c上。凹部339a是打印液体供应单元的(例如，第一壳体部件或盖子的)内部中的凹陷区域(例如，在三个侧上的凸起的栅栏中的区域)。凸起的表面341a-c可从凹部339a突出，以允许打印液体供应单元更大程度地挠曲。利用凸起的表面341a-c可减少针对平坦度要控制的总表面积的量。凹部339a和凸起的表面341a-c可促进在传感器支撑件的背面和打印液体供应单元(例如，第一壳体部件或盖子)之间的打印液体排流。支柱338a-b是用于附接传感器支撑件的突出的结构或柱(column)。在图3A的示例中，打印液体供应单元包括两个支柱338a-b。可利用不同数量的凸起的表面和/或支柱。尽管在一些图中示出了圆形支柱，但是在一些示例中可利用其他形状的支柱。
支柱338a-b可以是型锻支柱。型锻支柱是可被型锻以将支柱形成为一定形状的支柱。例如，一旦将传感器支撑件安装到支柱338a-b上，支柱338a-b就可被型锻以扩展支柱338a-b的顶部部分。支柱338a-b的扩展部分可用作保持器以将传感器支撑件附接到打印液体供应单元(例如，第一壳体部件或盖子)。因此，打印液体供应单元可包括第一支柱338a和第二支柱338b，其中传感器支撑件附接到第一支柱338a和第二支柱338b。
图3B是图示打印液体供应单元的一部分的示例的图。该部分可以是结合图1所描述的第一壳体部件(例如，盖子)的一部分的示例。在图3B中，打印液体供应单元(例如，第一壳体部件或盖子的内部侧)可包括凹部339b、凸起的表面341d-f和支柱338d-f。凹部339b、凸起的表面341d-f和/或支柱338d-f可类似于结合图3A所描述的对应元件。在图3B的示例中，打印液体供应单元可包括第一支柱338d、第二支柱338e和第三支柱338f，其中传感器支撑件可附接到第一支柱338d、第二支柱338e和第三支柱338f。从组装角度来看，利用两个支柱338a-b可以是有益的，如结合图3A所描述的。为了改进应变响应并提供冗余，利用三个支柱338d-f或更多可以是有益的。
图3C是结合图3B所描述的打印液体供应单元的该部分的示例的透视图。图3C还包括传感器支撑件320、电连接器343和在安装传感器支撑件320之前的电衬垫345的示例。例如，打印液体供应单元可包括第一支柱338d、第二支柱338e和第三支柱338f，其中第一支柱338d、第二支柱338e和第三支柱338f位于传感器支撑件320的槽340a-c中。当安装时，传感器支撑件320可落座在凸起的表面341d-f上。
图3D是结合图3B和图3C所描述的打印液体供应单元的该部分的示例在附接了传感器支撑件320之后的透视图。在一些示例中，一旦将传感器支撑件安装到支柱338d-f上，支柱338d-f就可被型锻以扩展支柱338d-f的顶部部分。支柱338d-f的扩展部分可用作保持器以将传感器支撑件320附接到打印液体供应单元(例如，第一壳体部件或盖子)。
在图3D的示例中，示出了圆形的型锻形状。可采用其他各种形状(例如，长形的垂直或水平椭圆形或不同的组合)。在其他示例中，其他特征可被实施为型锻弯过(swageover)并将传感器支撑件320附接到打印液体供应单元(例如，第一壳体部件或盖子)。例如，沿着传感器支撑件320的边缘的特征可被型锻弯过以附接传感器支撑件320。
当打印液体供应单元被调节器组件挠曲时，传感器电路308可进行挠曲。在一些示例中，传感器电路308可检测挠曲。例如，传感器电路308可包括应变仪以测量挠曲。在一些示例中，大多数的挠曲可发生在压力室所位于的打印液体供应单元区域中。在一些示例中，可自顶到底出现增大的挠曲梯度，其中在中间的挠曲更大。在一些示例中，传感器电路上的最高挠曲可紧挨着顶部支柱338d，其中在中间支柱338e附近的挠曲较小且在底部支柱338f附近的挠曲很小或没有挠曲。在一些示例中，对于一个支柱未被紧密地型锻或者如果一个支柱被损坏或尺寸过小的情况，多于两个附接点(例如，支柱)对于冗余可以是有益的。多于两个附接点可有益地允许基于预期模式来调谐传感器电路308的响应。
与其他组装方法相比，使用冷型锻、温热(warm)型锻或热(hot)型锻将传感器支撑件和/或传感器附接到打印液体供应单元可提供一些益处。例如，打印液体供应单元和传感器支撑件可由与型锻兼容的材料制造。型锻的一些示例可提供益处，诸如低成本、空间利用率高和/或不利用附加的联结材料或部件。可基于在过度充气事件期间的挠曲区来定位在打印液体供应单元(例如，第一壳体部件或盖子)和传感器支撑件之间的任何正数(例如，1到n)个机械附接点(例如，支柱或型锻点)。例如，传感器支撑件可具有数量为1到n个可安装在打印液体供应单元上的数量为1到n个的对应公支柱上的孔。
可通过对支柱的端部进行冷成形、温热成形或热型锻来附接传感器支撑件，以有效地形成保持头。此方法在其中用可以注射模制并与大批量制造和/或组装技术兼容的热塑性塑料(诸如，聚丙烯(PP)或高密度聚乙烯(FIDPE))来构造打印液体供应单元(例如，盖子)的示例中起作用。一些热塑性材料还与打印液体兼容，在运送/处理期间对环境条件具有稳健性，和/或可提供可接受的水蒸气透过率(WVTR)。这可确保在打印液体供应单元的寿命内打印质量不退化。
在一些示例中，传感器支撑件可由工程塑料构造而成，该工程塑料可以承受用于固化可利用来组装打印液体供应单元的粘合剂的高温。例如，传感器支撑件可适合于承受对支柱的冷型锻、温热型锻或热型锻，其中打印液体供应单元(例如，本体和/或盖子)材料的熔化温度/强度较低。在一些示例中，利用型锻来附接部件可以是有益的，因为可通过由打印液体供应单元材料形成特征来联结部件(例如，塑料零件)，而不必引入另一种材料(例如，结合剂)或附加零件。
在一些示例中，打印液体容器可包括容器壁。例如，结合图3A、图3B、图3C和/或图3D所描述的打印液体供应单元的这些部分可以是容器壁的示例。容器壁可包括支柱(例如，支柱338a-b、支柱338d-f或其他支柱)。打印液体容器可包括容器性质传感器。容器性质传感器是用以检测容器的一种性质或多种性质(例如，应变、挠曲、压力、打印液体液位等)的传感器。在一些示例中，容器性质传感器可包括用支柱固定到容器壁的应变传感器或压力传感器。容器性质传感器可以是本文所描述的一个传感器电路或多个传感器电路的示例。例如，容器性质传感器可包括一个应变传感器或多个应变传感器、一个压力传感器或多个压力传感器和/或一个打印液体液位传感器或多个打印液体液位传感器。支柱可被型锻以将容器性质传感器固定到容器壁。例如，容器性质传感器可包括槽，或者可安装在包括对应于支柱的槽的传感器支撑件上。当支柱穿过槽定位时，支柱可被型锻(例如，冷型锻、温热型锻或热型锻)以将容器性质传感器固定到容器壁。
图4A是图示打印液体供应单元的本体412的示例的图。在一些示例中，结合图4A所描述的本体412可以是结合图1所描述的打印液体供应单元的第二壳体部件的示例。在该示例中，本体412包括端口406。本体412还包括阀机构444以打开或闭合端口406。在一些示例中，打印液体供应单元可在成角度的位置中(例如，倾斜5度)耦接到打印机，使得打印液体448可朝端口406排流。还相对于本体412图示了传感器电路408。在一些示例中，传感器电路408可安装到盖子。
图4B是图示结合图4A所描述的本体412的一部分的放大图的图。当打印液体448液位低或几乎耗尽时准确地感测打印液体448液位可以是有益的。例如，当打印液体448的顶部在中心线处时，打印液体供应单元可被认为是空的。为了在低液位处实现准确的打印液体液位感测，传感器电路408可延伸到储器的底部附近。传感器电路408的一部分442可到达端口406中心线446或更低。
在一些示例中，阀机构444可包括弹簧450和球452。本文中所描述的打印液体供应单元的一些示例可允许传感器电路408的部分442延伸到阀机构444所位于的区域中。
图4C是打印液体供应单元的盖子414的图。在一些示例中，盖子414可与结合图4A和图4B所描述的本体412联结，以形成打印液体供应单元。盖子414可包括传感器408(例如，打印液体液位传感器和/或应变或压力传感器)。
盖子414可包括支撑肋454。支撑肋454是用以支撑阀机构444的结构。例如，支撑肋454可保持和/或引导阀机构444。例如，当阀机构444打开和/或闭合时，支撑肋454可保持弹簧450和/或球452。支撑肋454可包括槽468。槽468是支撑肋454中的开口。传感器电路408的部分442可穿过槽468定位。
图4D是图示结合图4C所描述的盖子414的示例的一部分的放大图的图。还图示了隔片462。在一些示例中，隔片462可位于端口406中。图4D的示例图示了阀机构的球452的行进位置。当将球452插入(例如，按压、密封等)到端口406和/或隔片462中时，球452可处于闭合位置456中。当未安装打印液体供应单元时，球452可处于闭合位置456中。当处于安装位置458中时，球452可远离端口406和/或隔片定位，使得端口406是打开的。例如，可将针插入到端口406(例如，隔片462)中，这在将打印液体供应单元安装在打印头组件中时可将球452按压入安装位置458中。还图示了超程位置460，其中球452被按压超过安装位置458。在安装期间，当球在打印液体供应单元被闩锁在打印头组件中之前到达超程位置时，可出现超程位置460。当在安装和/或移除期间阀机构行进时，支撑肋454可保持阀机构444(例如，球452和/或弹簧450)。槽468的大小可设置成(例如，小于球452的大小、小于球452的直径等)，使得球452可以沿着支撑肋454行进而不会落入槽468中。在一些示例中，球452的直径可大约为4mm。例如，球452可大于槽468，使得在支撑肋454提供支撑时球452不能落入开口中。
图4E是图示结合图4C和图4D所描述的支撑肋454的示例的一部分的透视图的图。在该示例中，槽468具有用以在槽468的第一端部466处形成第一毛细管力的形状，该第一毛细管力大于在该槽的第二端部464处的第二毛细管力。例如，在一些示例中，用于传感器部分442的槽468可具有两个渐缩的边缘，而不是简单的垂直壁。渐缩的边缘可充当毛细管吸取件，以帮助将打印液体从下传感器部分442排流走。随着边缘越来越靠近传感器支撑件的侧，与顶部处的更大距离相比，可存在更高的毛细管力。在其他示例中，可在槽468中实施垂直壁或其他形状。
在一些示例中，支撑肋454可比传感器电路更高。这可在弹簧450、球452和隔片的安装期间和/或在阀机构444的操作期间为下传感器部分442(例如，尾部)提供保护。
尽管已描述了在打印液体供应单元的底部附近的支撑肋454的一些示例，但是支撑肋454或另一个(另外多个)肋可位于其他位置处。例如，传感器电路408的宽度可允许传感器支撑件沿着传感器支撑件的长度在各个位置处局部变窄。因此，可利用在打印液体供应单元的盖子侧上容纳一个肋或多个肋的其他设计。
在一些示例中，本体412和盖子414可以是盒的部件。盒可以是结合图1所描述的打印液体供应单元的示例。例如，盒可包括本体412，该本体包括打印液体端口。打印液体端口是用以供应打印液体的端口。打印液体端口可以是端口406的示例。当处于闭合位置中时，弹簧450可将球452按压入打印液体端口中。盖子414可包括用以保持弹簧450和球452的结构(例如，支撑肋454)。该结构可包括开口(例如，槽468)。在一些示例中，盒可包括传感器电路408。传感器电路408的尾部(例如，部分442)可位于开口中，以通过打印液体端口来感测打印液体液位。开口的第一尺寸(例如，顶部尺寸)可大于开口的第二尺寸(例如，底部尺寸)。虽然图示了具有渐缩形状的槽468的示例，但是在其他示例中，槽468的形状可不同。
在一些示例中，结构可以是盖子上的突出的壁或肋以支撑球452和弹簧450，从而确保阀机构444在其安装到打印头组件或从打印头组件移除时适当地打开和闭合。如上文所描述的，具有向下延伸到端口406的大约中心线的传感器电路408可以是有益的。当打印液体448在中心线446处或以下时，盒可被认为是空的(例如，墨水用完(out of ink，OOI))。在一些示例中，传感器支撑件宽度(例如，1.2mm)可在传感器支撑件的底部附近减小，使得结构(例如，在盖子侧上)可以具有小于一定大小或长度的开口，从而使得球不能落入该开口中。在一些示例中，感测电路408可以是狭窄的(例如，＜0.5mm)以装配穿过结构中的开口。在一些示例中，可利用渐缩的开口形状，其在底部处形成更高的毛细管力以将打印液体从传感器电路408吸取走并在底部处提供更准确的测量。
在一些示例中，打印液体端口可包括空心(open hole)橡胶隔片、塑料密封球和压缩弹簧。当将盒安装在打印头组件中时，公塑料针可与隔片接合，以将外部密封到橡胶隔片并且将球推入盒中并压缩弹簧。这可允许打印液体从盒流到打印头组件。在一些示例中，隔片、球和弹簧可在安装期间从盒的前面装载。例如，弹簧、球和隔片可从盒的前面安装并通过径向干涉特征被保持在隔片和本体上。在一些示例中，结构(例如，支撑肋、(多个)突出的结构)可位于本体和盖子上，这些结构向球和弹簧组件的两侧提供支撑和/或引导以确保在安装到打印头组件和从打印头组件移除时恰当地打开和闭合。没有这些结构，弹簧就可能潜在地向侧面弯曲，这可允许球潜在地停留在打开位置中，从而可在将盒从打印头组件移除时引起盒泄漏。
在一些示例中，可从盒的一侧安装其他部件(例如，调节器组件部件)。因此，本体412可从一侧模制并用盖子414闭合。这允许在顶部、底部和背面上一体式地模制用于球和弹簧的壳体。在一些示例中，可在本体侧上实施结构(例如，支撑肋)。
图5示出了示例打印液体供应盒500。在一些示例中，打印液体供应盒500可以是结合图1所描述的打印液体供应单元100的示例、本文中所描述的(多个)打印液体容器的示例和/或本文中所描述的(多个)盒的示例。在一些示例中，本文中所描述的一个部件或多个部件(例如，本体、盖子)可与打印液体供应盒500一起实施。更特别地，图5示出了示例盒500的正视图。盒500具有壳体580，该壳体封闭内部容积，在该内部容积中可以存储有打印液体(诸如，墨水或剂)。本文中所描述的示例盒的内部容积可在大约10毫升到大约50毫升或大约100毫升之间。壳体580具有前端部581、后端部582以及从前端部延伸到后端部的第一侧583和第二侧584。在图6中也可以看到前端部581和后端部582，图6是图5的示例打印液体供应盒穿过线C-C的横截面图。壳体580可包括两个相对硬的塑料壳，这两个塑料壳将打印液体直接容纳在其间。在该示例中，壳体的高度大于壳体的宽度。类似地，内部容积的高度大于内部容积的宽度。内部容积的高度可由第一侧和第二侧的高度限定，并且内部容积的宽度可由第一侧和第二侧之间的距离限定。
前端部581可具有打印液体出口585，可以通过该打印液体出口将打印液体供应给打印机，例如通过将打印机的流体笔插入其中。可将打印液体出口585设置成较前端部581的顶部而更靠近底部。
气体入口586也可设置在前端部581上，以使得能够将气体(诸如，空气)供应给盒，例如通过将打印机的流体笔插入其中。气体入口586可被定位在打印液体出口585上方。
可提供具有内侧589和外侧590的第一壁588以界定凹部591。在所示的示例中，凹部591从第一壁588延伸跨越前端部581的整个宽度。因此，第一壁588悬于壳体的有凹口的拐角之上。第一壁588的外侧590可以是壳体580的第一侧583的一部分。电连接衬垫592暴露在第一壁的内侧上，如图6中也示出的。电连接衬垫592在图5和图6中由单个块指示。在一个示例中，存在三个电连接衬垫，尽管可提供更少或更多的连接衬垫。电连接衬垫可沿顶到底方向布置。电连接衬垫使得能够例如根据内部集成电路(I2C)数据通信协议在盒的电路和打印机的电路之间传达电信号。因此，连接衬垫可形成I2C数据接口。将电连接衬垫592提供给第一壁588允许容易将电连接衬垫592安装在盒上。在被定位在内侧589上的情况下，电连接衬垫592在运送和处理盒时受到保护而免于损坏。凹部591可以接收打印机的电连接器，以在电连接衬垫592和电连接器之间建立电连接。
图7示出了另一个示例打印液体供应盒700。特别地，图7示出了盒700的平面图。图7的示例盒类似于图5的示例盒。在图7的示例中，凹部591不延伸跨越前端部581的整个宽度。凹部591由第二壁594界定。第一壁588和第二壁594之间的凹部591可将打印机的电连接器接收在其中以接触电连接衬垫592。
图8A和图8B是另一个示例打印液体供应盒800的透视图。图9是示例盒800的一部分的放大图。相同的附图标记用于相似的零件。盒800具有封闭内部容积的壳体580，在该内部容积中可以存储有打印液体(诸如，墨水或剂)。壳体580具有前端部581、后端部582以及从前端部延伸到后端部的第一侧583和第二侧584。打印液体出口585和气体入口586可设置在前端部上。可将打印液体出口585设置成较前端部581的顶部而更靠近底部。气体入口586可被定位在打印液体出口585上方。前端部还可具有打印液体入口587，以使得能够用打印液体填充或重新填充盒。
在图8A、图8B和图9的示例中，可从第一壁588的内侧589跨越凹部提供基准表面593。肋598可支撑第一壁588。在所示的示例中，基准表面是第二壁594的面向凹部591的一侧。基准表面593帮助确保顺利地将打印液体供应盒安装到打印机以及从打印机移除打印液体供应盒。
在一些示例中，打印液体供应盒800可包括从打印液体供应盒800的内部到外部定位的一个导体或多个导体。例如，第一导体可以是串行数据线和/或第二导体可以是时钟线。在一些示例中，第三导体可以是电源线和/或第四导体可以是地线。在一些示例中，一个导体或多个导体可耦接到一个电连接衬垫或多个电连接衬垫592。(多个)电连接衬垫592可位于凹部591中。
在一些示例中，(多个)电连接衬垫592和(多个)导体可由壳体部件支撑。例如，(多个)电连接衬垫和(多个)导体可由本文中所描述的盖子支撑。例如，(多个)电连接衬垫和(多个)导体可由第一壁588支撑，该第一壁可以是盖子的第一壁588。在一些示例中，打印液体供应盒800包括一个传感器或多个传感器。在一些示例中，(多个)传感器可由盖子和/或第一壁588支撑。
在一些示例中，打印液体供应盒800可包括一个打印液体接口或多个打印液体接口。打印液体接口是用于使打印液体通过的接口。打印液体接口的示例可包括打印液体出口585和打印液体入口587，该打印液体出口和打印液体入口可被包括在打印液体供应盒的前端部581中。

Claims (20)

1.一种打印液体供应单元，包括：
调节器组件，所述调节器组件包括至少部分地可膨胀或可收缩的压力室；
端口；以及
传感器电路，所述传感器电路在打印液体储器中被定位在所述调节器组件和所述端口之间。
2.根据权利要求1所述的打印液体供应单元，还包括第一导体和第二导体，其中，所述第一导体是串行数据线且所述第二导体是时钟线。
3.根据权利要求2所述的打印液体供应单元，还包括第三导体和第四导体，其中，所述第三导体是电源线且所述第四导体是地线。
4.根据任一前述权利要求所述的打印液体供应单元，其中，所述传感器电路包括液体液位传感器。
5.根据任一前述权利要求所述的打印液体供应单元，其中，所述传感器电路包括应变或压力传感器。
6.根据权利要求1、2、3或4所述的打印液体供应单元，其中，所述传感器电路用于针对所述打印液体储器的液位范围的一部分检测打印液体液位。
7.根据任一前述权利要求所述的打印液体供应单元，其中，所述传感器电路远离所述调节器组件。
8.根据任一前述权利要求所述的打印液体供应单元，还包括第一支柱和第二支柱，其中，传感器支撑件附接到所述第一支柱和所述第二支柱。
9.根据权利要求1、2、3、4、5、6或7所述的打印液体供应单元，还包括第一支柱、第二支柱和第三支柱，其中，所述第一支柱、所述第二支柱和所述第三支柱位于传感器支撑件的槽中。
10.根据任一前述权利要求所述的打印液体供应单元，进一步包括：
阀机构，用于打开或闭合所述端口；以及
支撑肋，用于支撑所述阀机构，其中，所述支撑肋包括槽，并且其中，所述传感器电路的一部分穿过所述槽定位。
11.根据权利要求10所述的打印液体供应单元，其中，所述槽具有用以在所述槽的第一端部处形成第一毛细管力的形状，所述第一毛细管力大于在所述槽的第二端部处的第二毛细管力。
12.根据任一前述权利要求所述的打印液体供应单元，还包括前端部、底部和顶部，所述前端部具有至少一个打印液体接口，其中，所述打印液体供应单元包括在所述前端部中的以及在所述前端部和所述顶部之间的凹部，其中，电连接衬垫位于所述凹部中并耦接到所述传感器电路。
13.根据权利要求12所述的打印液体供应单元，其中，所述电连接衬垫和导体由盖子支撑。
14.根据权利要求13所述的打印液体供应单元，其中，所述电连接衬垫和所述导体由所述盖子的相同壁支撑。
15.根据权利要求13或14所述的打印液体供应单元，其中，所述传感器电路连接到所述导体，其中，所述传感器电路由所述相同壁或所述盖子支撑。
16.根据任一前述权利要求所述的打印液体供应单元，还包括所述打印液体供应单元的打印液体入口和气体入口。
17.一种打印液体容器，包括：
容器壁，包括支柱；以及
容器性质传感器，包括用所述支柱固定到所述容器壁的应变传感器或压力传感器。
18.根据权利要求17所述的打印液体容器，其中，所述支柱被型锻以将所述容器性质传感器固定到所述容器壁。
19.一种盒，包括：
本体，所述本体包括打印液体端口，其中，当处于闭合位置时，弹簧用于将球按压入所述打印液体端口中；
盖子，所述盖子包括用于保持所述弹簧和所述球的结构，其中，所述结构包括开口；以及
传感器电路，其中，所述传感器电路的尾部位于所述开口中以通过所述打印液体端口来感测打印液体液位。
20.根据权利要求19所述的盒，其中，所述开口具有第一尺寸，所述第一尺寸大于所述开口的第二尺寸。
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