WO2011029378A1 - 墨盒 - Google Patents

墨盒 Download PDF

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Publication number
WO2011029378A1
WO2011029378A1 PCT/CN2010/076651 CN2010076651W WO2011029378A1 WO 2011029378 A1 WO2011029378 A1 WO 2011029378A1 CN 2010076651 W CN2010076651 W CN 2010076651W WO 2011029378 A1 WO2011029378 A1 WO 2011029378A1
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Prior art keywords
cavity
ink
ink cartridge
housing
needle
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PCT/CN2010/076651
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English (en)
French (fr)
Inventor
何永刚
侯亮
李世强
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珠海天威飞马打印耗材有限公司
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17513—Inner structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17553—Outer structure

Definitions

  • the present invention relates to a printing consumable, and more particularly to an ink cartridge that is detachably mounted to an inkjet printer.
  • the present invention is based on a Chinese utility model patent application filed on Sep. 08, 2009, the application number of which is incorporated herein by reference.
  • Inkjet printers are a common type of printer that offers great convenience for modern office use.
  • the existing ink jet printer has a printing word cart having one or more ink cartridge mounting cavities, each of which has an upwardly extending ink supply needle and a detecting needle.
  • An ink cartridge can be installed in each cartridge mounting cavity.
  • the ink cartridge has a housing 11 which encloses a cavity 12 in which the chamber 12 contains ink.
  • An ink supply port 13 and a through hole 14 are formed in the bottom of the housing 11, and the ink supply needle 1 on the printing carriage can pass through the ink supply port 13 and protrude into the cavity 12.
  • a sealing member 15 is provided in the ink supply port 13 for sealing the ink supply port 13.
  • the ink contained in the cavity 12 is supplied to the ink jet printer through the ink supply needle 1 out of the cavity 12, and ejected onto a printing medium such as paper to form a desired pattern or character.
  • the detecting needle 2 on the printing carriage passes through the through hole 14, and a sealing member 16 is provided below the through hole 14.
  • the detecting needle 2 pierces the sealing member 16 through the through hole and protrudes into the cavity 12.
  • the ink supply needle 1 and the detection needle 2 are electrically connected by the presence of ink, and the inkjet printer detects the electrical communication between the ink supply needle 1 and the detection needle 2, that is, the ink cartridge cavity is considered to be There is sufficient ink in the body 12.
  • the hollow detecting needle 2 can also blow air into the cavity 12 to maintain the air pressure in the cavity 12 balanced with the air pressure outside the cavity 12.
  • the detecting needle 2 pierces the sealing member 16 a plurality of times, which easily causes the sealing member 16 to be damaged, causing the ink to leak from the through hole 14.
  • the repeated mounting of the ink cartridge can easily bring the contaminants remaining on the upper portion of the detecting needle 2 into the cavity 12, causing ink contamination and affecting the print quality.
  • a movable chip mount 17 is provided at the bottom of the housing 11 of the ink cartridge, and the chip 18 is mounted in the movable mount 17.
  • the chip 18 is mounted in the movable chip mount 17, which easily leads to poor contact between the electrical contacts of the chip 18 and the electrical contacts of the printed carriage, thereby causing unprintability and affecting the normal operation of the inkjet printer.
  • the main object of the present invention is to provide an ink cartridge that prevents ink from leaking from a through hole
  • Another object of the present invention is to provide an ink cartridge of better print quality.
  • the ink cartridge provided by the present invention is detachably mounted in a printing carriage of an inkjet printer, the ink cartridge includes a casing, and the casing encloses a cavity for containing ink, and the casing is provided at the bottom of the casing.
  • the ink supply port wherein the bottom of the cavity is provided with a conductive member, one end of the conductive member is located in the cavity body, and the other end is located outside the cavity body.
  • the bottom of the ink cartridge cavity is provided with a conductive member, and the conductive member can be electrically connected to the ink in the cavity and extend outside the cavity.
  • the ink supply needle passes through the ink supply port and is connected to the ink in the chamber.
  • the detecting pin is in contact with the conductive member extending outside the cavity, so that when there is sufficient ink in the cavity, the ink supply needle and the detecting needle are electrically connected through the conductive member and the ink, and the ink jet printer detects that the ink cartridge has sufficient ink. .
  • the ink jet printer When there is no ink between the ink supply needle and the conductive member, the ink jet printer detects an open circuit between the ink supply needle and the detecting needle, and considers that the ink remaining in the ink cartridge is insufficient, and issues a warning message to the user.
  • the detecting needle does not need to pierce the sealing member and protrude into the cavity, thereby preventing the sealing member from being damaged when the ink cartridge is repeatedly installed, preventing the ink from leaking out through the through hole, and being effective. Avoid the detection needle to bring contaminants into the cavity, thus ensuring the print quality of the inkjet printer.
  • the ink cartridge is further provided with a gas guiding mechanism having a gas passage extending from the top end of the cavity toward the bottom end of the cavity, and the gas passage is in communication with the cavity at the bottom end.
  • the air outside the cavity can enter the bottom of the cavity from the top of the ink cartridge through the gas passage, and the air is replenished to the cavity to maintain the air pressure in the cavity and the pressure outside the cavity.
  • FIG. 1 is a schematic structural view of a conventional ink cartridge, in which an ink supply needle and a detecting needle are inserted into an ink cartridge;
  • Figure 2 is a structural view of an embodiment of the present invention
  • Figure 3 is a reduced structural exploded view of an embodiment of the present invention.
  • Figure 4 is an internal structural view of an embodiment of the present invention, in which the ink supply needle and the detecting needle are inserted into the ink cartridge;
  • Figure 5 is a partial exploded view of another embodiment of the present invention.
  • Figure 6 is an enlarged view of the housing of the embodiment of the present invention.
  • Fig. 7 is an enlarged view showing the structure of a part and a chip of the embodiment of the present invention.
  • the ink cartridge according to the present invention has a casing 21, and an upper cover 51 is disposed above the casing 21.
  • the casing 21 and the upper cover 51 enclose a cavity 37 (shown in FIG. 4).
  • 37 contains ink.
  • An ink supply port 22 is provided at the bottom of the housing 21, and a sealing member 23 for sealing the ink supply port 22 is provided in the ink supply port 22.
  • the sealing member 23 is made of an elastic material and is a self-closing sealing member.
  • a sealing film 24 is further provided below the sealing member 23, and a lower end cap 41 is provided at the bottom of the housing 21.
  • the bottom of the housing 21 is further provided with a through hole 25 (shown in FIG. 6), and a sealing member 29 is disposed in the through hole 25.
  • a conductive member 26 is disposed at the bottom end of the cavity 37.
  • the conductive member 26 is composed of the first conductive body 27 and the second conductive body 28, wherein the middle portion of the first conductive body 27 passes through the sealing member 29 and protrudes into the cavity 37.
  • the first conductor 27 is fixed in the through hole 25, and the upper end is located in the cavity 37, the second conductor 28 is located below the first conductor 27, and the lower end of the first conductor 27 is electrically connected to the second conductor 28.
  • the second conductive member 28 is provided with two through holes 35.
  • the bottom wall of the housing 21 is provided with two bumps 36 (shown in FIG. 6) through which the bumps 36 can pass.
  • the second conductive member 28 abuts the first conductive member 27 into the sealing member 29, and the through hole 35 is fitted on the bump 36, and the bump 36 made of plastic is flattened after heat treatment to be
  • the second conductive member 28 is fixed to the bottom of the housing 21.
  • the second electric conductor 28 also has two elastic pieces 30 as elastic elastic ends, and the elastic piece 30 can be outwardly opened by an external force.
  • the ink supply needle 1 in the carriage is pierced by the seal 23 and extends through the ink supply port 22 into the cavity 37 to receive the ink in the cavity 37.
  • the detecting needle 2 in the printing carriage is in contact with the second electric conductor 28 and is held by the elastic piece 30.
  • ink When there is sufficient ink in the cavity 37, ink is present between the ink supply needle 1 and the first electrical conductor 27, and the ink, the first electrical conductor 27, and the second electrical conductor 28 are passed between the ink supply needle 1 and the detecting needle 2. Electrically connected.
  • the ink jet printer supplies an electric signal of a certain voltage to the ink supply needle 1 and the detecting needle 2, a conductive loop is formed between the ink supply needle 1 and the detecting needle 2, and the ink jet printer can judge that there is sufficient ink in the cavity 37.
  • the inkjet printer determines the ink remaining in the cavity 37. Insufficient amount, that is, a warning message is sent to the user.
  • the detecting needle 2 does not pierce the sealing member 29. Even if the user repeatedly installs the ink cartridge, the detecting needle 2 does not damage the sealing member 29, and the ink is prevented from leaking out of the through hole 25. At the same time, since the detecting needle 2 does not protrude into the cavity 37, even if there is residual contaminant at the upper end of the detecting needle 2, it will not be carried into the cavity 37, effectively avoiding contamination of the ink.
  • the ink cartridge of the present invention further has a gas guiding mechanism having a gas passage 31 extending from the top end to the bottom end of the cavity 37.
  • a gas guiding mechanism having a gas passage 31 extending from the top end to the bottom end of the cavity 37.
  • an air guide cover 61 is provided above the upper cover 51, and a curved air passage 62 is opened on the air guide cover 61.
  • An air guiding chamber 52 is opened on the upper cover 51, and the sponge 54 is installed in the air guiding chamber 52.
  • the air guiding chamber 52 is located directly below the upper cover 51, and is provided with an air passage 53.
  • the air outlet of the air passage 53 is located directly above the gas passage 31, so that the air guiding chamber 52 communicates with the top end of the gas passage 31 through the air passage 53. .
  • the air outside the cavity 37 enters the air guiding chamber 52 through the air passage 62 of the air guiding cover 61, and then enters the gas passage 31 through the air passage 53.
  • the bottom of the gas passage 31 is provided with an air outlet 32 which is sealed by a sealed sealing film 34 (shown in Fig. 3) for sealing the air outlet 32.
  • Two communication holes 33 are provided on both sides of the air outlet 32 for communicating the gas passage 31 and the cavity 37.
  • the bottom of the housing 21 is further provided with a chip fixing cavity 70, and the chip 76 is fixedly mounted in the chip fixing cavity 70.
  • the structure of the chip fixing cavity 70 is as shown in FIG.
  • the chip fixing cavity 70 has an end wall 71 and is provided with two side walls 72 perpendicular to the end wall 71.
  • Each side wall 72 is provided with a rib 73 extending into the chip fixing cavity, the rib 73 and the end wall.
  • the chip 76 Since the chip 76 is fixedly mounted on the bottom of the housing 21, after the ink cartridge is mounted to the printing carriage, the chip 76 does not move relative to the housing, facilitating the electrical contact of the chip 76 to be connected to the electrical contacts of the printing carriage.
  • the first electrical conductor and the second electrical conductor may be integrally formed; or the conductive members may be three or more.
  • a plurality of conductors are connected to each other; or a lower portion of the second conductor is provided with a spring or the like for abutting the detecting needle, which can also achieve the object of the present invention.
  • the present invention is not limited to the above embodiments, and minor changes such as a change in the connection manner of the first electrical conductor and the second electrical conductor, a change in the air guiding mechanism, and the like should also be included in the scope of protection of the present invention. .
  • the bottom of the ink cartridge chamber according to the present invention is provided with a conductive member which is electrically connectable to the ink in the chamber and extends outside the chamber.
  • the ink jet printer When there is no ink between the ink supply needle and the conductive member, the ink jet printer detects an open circuit between the ink supply needle and the detecting needle, and considers that the ink remaining in the ink cartridge is insufficient, and issues a warning message to the user.

Description

墨盒 技术领域
本发明涉及一种打印耗材，尤其是一种可拆卸地安装到喷墨打印机的墨盒。本发明基于申请日为2009年09月08日、申请号为200920194754.X的中国实用新型专利申请，该申请的内容作为与本发明密切相关的参考文献引入本文。
 背景技术
喷墨打印机是一种常见的打印机，为现代化办公提供极大的方便。现有的喷墨打印机具有一个打印字车，打印字车内具有一个或多个墨盒安装腔，每一墨盒安装腔内具有一根向上延伸的供墨针以及一根检测针。每一墨盒安装腔均可安装一个墨盒。
一种现有墨盒结构如图1所示，墨盒具有一个壳体11，壳体11围成一个腔体12，腔体12内容纳有墨水。在壳体11的底部设有开设有一个供墨口13以及一个通孔14，打印字车上的供墨针1可穿过供墨口13，并伸入腔体12中。在供墨口13内设有一个密封件15，用于密封供墨口13。容纳在腔体12内的墨水通过供墨针1流出腔体12向喷墨打印机提供，并喷射在纸张等打印介质上，形成所需的图案或文字。
打印字车上的检测针2穿过通孔14，通孔14下方设有密封件16，检测针2刺穿密封件16穿过通孔，并伸入腔体12内。墨盒安装到打印字车后，供墨针1与检测针2分别穿过供墨口13及通孔14，伸入腔体12内，并且喷墨打印机向供墨针1及检测针2提供特定电压的电信号。
腔体12内容纳较多墨水时，供墨针1与检测针2之间因存有墨水而电连通，喷墨打印机检测到供墨针1与检测针2之间电连通，即认为墨盒腔体12内具有足够的墨水。
随着腔体12内墨水的消耗，当墨水低于供墨针1或检测针2时，供墨针1与检测针2之间没有墨水，喷墨打印机检测到供墨针1与检测针2之间断路，则认为腔体12内墨水余量不足，向用户发出警告信息，通知用户更换墨盒。
此外，中空的检测针2还可以向腔体12吹入空气，以保持腔体12内气压与腔体12外气压平衡。
但是，若墨盒反复安装，检测针2多次刺穿密封件16，容易造成密封件16损坏，导致墨水从通孔14中漏出。并且，墨盒的反复安装还会容易将残留在检测针2上部的污染物带入腔体12内，导致墨水污染，影响打印质量。
此外，墨盒的壳体11底部设有一个活动的芯片安装座17，芯片18安装在活动安装座17内。芯片18安装在活动芯片安装座17内，容易导致芯片18的电触点与打印字车的电触点接触不良，进而导致无法打印，影响喷墨打印机的正常工作。
 技术问题
本发明的主要目的是提供一种避免墨水从通孔渗漏的墨盒；
本发明的另一目的是提供一种打印质量较好的墨盒。
 技术解决方案
为实现上述的主要目的，本发明提供的墨盒可拆卸地安装到喷墨打印机的打印字车中，该墨盒包括有壳体，壳体围成一容纳有墨水的腔体，壳体底部设有供墨口，其中，腔体底部设有导电件，导电件的一端位于腔体内，另一端位于腔体外。
由上述方案可见，墨盒腔体的底部设有导电件，导电件可与腔体内的墨水电连接，并且延伸至腔体外。墨盒安装到打印字车后，供墨针穿过供墨口，与腔体内的墨水连接。同时，检测针与延伸到腔体外的导电件接触，这样，腔体内有充足墨水时，供墨针与检测针之间通过导电件及墨水电连通，喷墨打印机即检测墨盒内具有足够的墨水。随着腔体内墨水消耗，供墨针与导电件之间没有墨水时，喷墨打印机即检测到供墨针与检测针之间断路，认为墨盒内墨水余量不足，向用户发出警告信息。
可见，喷墨打印机检测腔体内墨水余量时，检测针不需要刺穿密封件并伸入腔体内，避免墨盒反复安装时导致密封件损坏，防止墨水从通孔中渗漏出去，也能有效避免检测针将污染物带入腔体内，从而保证喷墨打印机的打印质量。
一个优选的方案是，墨盒还设有导气机构，该导气机构具有自腔体顶端向腔体底端延伸的气体通道，气体通道在底端与腔体连通。
由此可见，随着墨盒腔体内墨水的消耗，腔体外的空气可从气体通道从墨盒的顶端进入腔体底部，向腔体内补充空气，以保持腔体内气压与腔体外气压平衡。
附图说明
图1是现有墨盒的结构示意图，图中供墨针与检测针插入墨盒内；
图2是本发明实施例的结构图；
图3是本发明实施例的缩小了的结构分解图；
图4是本发明实施例的内部结构图，图中供墨针与检测针插入墨盒内；
图5是本发明实施例另一视角的局部结构分解图；
图6是本发明实施例壳体的放大图；
图7是本发明实施例壳体局部与芯片结构放大图。
以下结合附图及实施例对本发明作进一步说明。
本发明的实施方式
参见图2与图3，根据本发明的墨盒具有一个壳体21，壳体21的上方设有上盖51，壳体21与上盖51围成一个腔体37（图4示），腔体37内容纳有墨水。在壳体21底部设有供墨口22，供墨口22内设有用于密封供墨口22的密封件23，优选地，密封件23由弹性材料制成，并且为自闭式密封件。密封件23下方还设有密封膜24，下端盖41设在壳体21的底部。
壳体21的底部还设有通孔25（图6示），通孔25内设有密封件29。在腔体37底端设有导电件26，导电件26由第一导电体27以及第二导电体28构成，其中第一导电体27中部穿过密封件29并伸入腔体37内，因此第一导电体27固定在通孔25内，且上端位于腔体37内，第二导电体28位于第一导电体27的下方，第一导电体27的下端与第二导电体28电连接。
第二导电件28上设有两个通孔35，壳体21的底壁设有两个凸块36（图6示），凸块36可穿过通孔35。墨盒安装后，第二导电件28将第一导电件27抵入密封件29内，且通孔35套装在凸块36上，同时塑料制成的凸块36经过热处理后变得扁平，以将第二导电件28固定在壳体21的底部。第二导电体28还具有作为弹性夹持端的两片弹片30，弹片30可在外力作用下向外张开。
参见图4，墨盒安装到打印字车后，打印字车内的供墨针1刺穿密封件23并穿过供墨口22伸入腔体37内，接收腔体37内的墨水。同时，打印字车内的检测针2与第二导电体28接触，并被弹片30夹持。
当腔体37内有充足的墨水时，供墨针1与第一导电体27之间存在墨水，供墨针1与检测针2之间通过墨水、第一导电体27、第二导电体28电连通。喷墨打印机向供墨针1及检测针2提供一定电压的电信号时，供墨针1与检测针2之间形成导电回路，喷墨打印机即可判断腔体37内具有充足的墨水。
若腔体37内墨水不足时，供墨针1与第一导电体27之间没有墨水，喷墨打印机检测供墨针1与检测针2之间断路，喷墨打印机判断腔体37内墨水余量不足，即向用户发出警告信息。
由此可见，墨盒安装到打印字车后，检测针2未刺穿密封件29，即使用户反复安装墨盒，检测针2也不会损坏密封件29，避免墨水从通孔25中渗漏出去。同时，由于检测针2并不伸入腔体37内，即使检测针2上端残留有污染物，也不会被带入腔体37内，有效地避免对墨水造成污染。
本发明的墨盒还具有导气机构，导气机构具有气体通道31，气体通道31自腔体37的顶端向底端延伸。参见图5，在上盖51的上方设有导气盖61，导气盖61上开设有弯曲的气道62。上盖51上开设有导气腔52，海绵54安装在导气腔52内。导气腔52位于上盖51的正下方，并且设有气道53，气道53的出气口位于气体通道31的正上方，这样，导气腔52通过气道53与气体通道31的顶端连通。
这样，腔体37外的空气通过导气盖61的气道62进入导气腔52，再通过气道53进入气体通道31。
参见图6，气体通道31的底部设有出气口32，出气口32由粘贴的密封膜34（图3示）封堵，用于将出气口32密封。在出气口32两侧分别设有两个连通孔33，用于连通气体通道31与腔体37。这样，进入气体通道31的空气可通过连通孔33进入腔体37，以保持腔体37内外气压平衡。
回看图3，壳体21的底部还设有一个芯片固定腔70，芯片76固定安装在芯片固定腔70内。
芯片固定腔70的结构如图7所示。芯片固定腔70具有一个端壁71，并设有两个与端壁71垂直的侧壁72，每一侧壁72均设有向芯片固定腔内延伸的筋条73，筋条73与端壁71之间具有间隙74，芯片76夹持在筋条73与端壁71之间，以此实现芯片76的固定安装。
由于芯片76固定安装在壳体21的底部，墨盒安装到打印字车后，芯片76不会相对于壳体运动，有利于芯片76的电触点与打印字车的电触点连接。
当然，上述实施例仅是本发明较佳的实施方案，实际应用时还可以有更多的变化，例如，第一导电体与第二导电体可一体成型；或者，导电件由三个或更多的导电体连接组成；又或者第二导电体下部设有用于与检测针抵接的弹簧等，这同样可以实现本发明的目的。
最后需要强调的是，本发明不限于上述实施方式，如第一导电体与第二导电体连接方式的改变、导气机构的改变等微小的变化也应该包括在本发明权利要求的保护范围内。
 工业实用性
根据本发明的墨盒腔体的底部设有导电件，导电件可与腔体内的墨水电连接，并且延伸至腔体外。墨盒安装到打印字车后，供墨针穿过供墨口，与腔体内的墨水连接。同时，检测针与延伸到腔体外的导电件接触，这样，腔体内有充足墨水时，供墨针与检测针之间通过导电件及墨水电连通，喷墨打印机即检测墨盒内具有足够的墨水。随着腔体内墨水消耗，供墨针与导电件之间没有墨水时，喷墨打印机即检测到供墨针与检测针之间断路，认为墨盒内墨水余量不足，向用户发出警告信息。

Claims (7)

  1. 墨盒，包括
    壳体，所述壳体围成一容纳有墨水的腔体，所述壳体底部设有供墨口；
    其特征在于：
    所述腔体底部设有导电件，所述导电件的一端位于所述腔体内，另一端位于所述腔体外。
  2. 据权利要求1所述的墨盒，其特征在于：
    所述腔体底部设有一通孔；
    所述导电件由第一导电体以及第二导电体构成，所述第一导电体中部通过一密封件固定在所述通孔内，所述第一导电体一端位于所述腔体内，另一端与第二导电体连接。
  3. 据权利要求2所述的墨盒，其特征在于：
    所述第二导电体具有一个弹性夹持端。
  4. 据权利要求1至3任一项所述的墨盒，其特征在于：
    所述墨盒还设有导气机构，所述导气机构具有自所述腔体顶端向所述腔体底端延伸的气体通道，所述气体通道在底端与所述腔体连通。
  5. 据权利要求4所述的墨盒，其特征在于：
    所述导气机构还设有位于壳体上盖上方的导气盖，所述导气盖的下方设有导气腔，所述导气腔与所述气体通道的顶端连通。
  6. 据权利要求1至3任一项所述的墨盒，其特征在于：
    所述壳体底部设有一芯片固定腔，所述芯片固定腔内固定安装有芯片。
  7. 据权利要求6所述的墨盒，其特征在于：
    所述芯片固定腔具有一端壁以及两个侧壁，所述每一侧壁上均设有向芯片固定腔延伸的筋条。
PCT/CN2010/076651 2009-09-08 2010-09-06 墨盒 WO2011029378A1 (zh)

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CN110239225A (zh) * 2019-07-12 2019-09-17 珠海天威飞马打印耗材有限公司 一种墨水容器

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