WO2009021383A1

WO2009021383A1 - A chip and an ink cartridge using it

Info

Publication number: WO2009021383A1
Application number: PCT/CN2007/071257
Authority: WO
Inventors: Qingguo Xiao
Original assignee: Print-Rite Technology Development Co., Ltd Of Zhuhai
Priority date: 2007-08-10
Filing date: 2007-12-18
Publication date: 2009-02-19
Also published as: CN201064977Y

Abstract

A chip comprises a base plate (1), IC fixed on the surface of the base plate (1) and a group of contacts (11). IC electrically conducts with the contacts (11). This group of contacts (11) is arranged in a single row along the transverse direction of the base plate (1). The length of each contact (11) along the vertical direction of the base plate (1) is not smaller than the distance between upper and lower probes of a printer and is not larger than the length of the base plate (1). The present invention is favorable for the positioning between the contacts of the chip and the probes of the printer while an ink cartridge is inserted into the printer. Furthermore, the lengthened contacts may avoid the disengagement between it and the probe of the printer along the vertical direction during printing.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of inkjet printing consumables, and more particularly to a chip capable of communicating with an inkjet printer main body and an ink cartridge using the same. The present invention is based on a Chinese utility model patent application filed on Aug. 10, 2007, the application number of which is incorporated herein by reference. BACKGROUND OF THE INVENTION An inkjet printer is a common office equipment that provides great help and convenience for modern office work. Most of the existing ink jet printers use a detachable ink cartridge, which is mounted on the main body of the ink jet printer, and conveys the consumables to the recording medium. On the ink cartridge, there are generally chips for storing information such as the ink cartridge model, date of manufacture, amount of ink, and the like. The chip structure includes a substrate, an IC and a contact, wherein the contact and the IC are electrically conductive; when the ink cartridge is mounted to the inkjet printer, the contact is connected to the probe on the inkjet printer, and the probe on the inkjet printer is generally 7 Or nine, distributed in two rows, usually upper 3 or 4 or upper 5; see Figure 1, at present, the inkjet printer cartridge chip substrate 100 is more than the inkjet printer probe corresponding to the upper and lower rows The contact 101 is designed like a "good" structure. The chip substrate 100 is mounted on the outer wall of the ink cartridge. When the user mounts the ink cartridge in the printer printing car, the contacts on the substrate 100 will be opposite to the ink jet printer. The contact is made to achieve electrical connection. In the process of mounting the ink cartridge to the inkjet printer, the contact 101 of the "pin" shape is not only required to have high positioning accuracy, but also high vertical positioning accuracy, due to accumulated error of installation. It is difficult to ensure the reliability of the chip contacts 101 being able to contact the inkjet printer probes. In order to solve such a problem, the Chinese Utility Model Patent No. 0200520066968. discloses a chip having a plurality of contacts on one surface thereof, the contacts being arranged in a row, each of the contacts being wide at one end, and the other end Narrow, adjacent contacts are staggered, and the wide end of the contact is in contact with the inkjet printer connection end. The disadvantage of this chip is that the narrow end width of the contact is too small, and the accurate positioning of the ink cartridge chip and the inkjet printer probe cannot be effectively guided during the loading of the ink cartridge into the inkjet printer, and may even be due to the narrow contact of the probe from the contact. The end slides down and the positioning of the ink cartridge chip and the inkjet printer probe is incorrect; in addition, the length of the chip contact is small, which is not conducive to the ink cartridge security Accurate positioning of the chip contacts and probes during the loading process. SUMMARY OF THE INVENTION A first object of the present invention is to provide an ink cartridge chip capable of ensuring good positioning of a contact with an ink jet printer probe; a second object of the present invention is to provide a probe capable of securing a contact and an ink jet printer Good positioning of the chip cartridge. In order to achieve the above first object, the present invention provides the following technical solution: a chip, including a substrate, an IC fixed on a surface of the substrate and a set of contacts, the IC and the contact are electrically connected, and the set of contacts are single along the lateral direction of the substrate The row arrangement; wherein, the length of each contact along the vertical direction of the substrate is not less than the spacing between the upper and lower probe contact points of the inkjet printer and not greater than the length of the substrate. A further solution is that the set of contacts are of equal length along the vertical direction of the substrate, and each contact is rectangular. The ink cartridge chip structure of the present invention is improved, each contact is designed to be rectangular, and the length of each contact is longer than that of the existing chip, and the longer contact facilitates the process of loading the ink cartridge into the inkjet printer. The mid-chip contacts are well positioned in the vertical direction with the inkjet printer probe; in addition, the elongated contacts also prevent vertical contact of the contacts with the inkjet printer probe during printing. Each of the contacts is rectangular in its own shape, that is, locally widened compared to the prior art, and the widened contacts can better guide the chip alignment. In order to achieve the above second object, the present invention also provides the following technical solution: an ink cartridge comprising an ink container, an ink supply port and a chip, the chip comprising a substrate, an IC fixed on the surface of the substrate and a set of contacts, IC and touch The electrical conduction is electrically conductive, and the set of contacts are arranged in a single row along the lateral direction of the substrate; wherein the length of each contact along the vertical direction of the substrate is not less than the spacing between the upper and lower probe contact points of the inkjet printer and not greater than the length of the substrate. A further solution is that the set of contacts are of equal length along the vertical direction of the substrate, and each contact is rectangular. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural view of a prior art chip contact; 2 is a schematic structural view of a first embodiment of an ink cartridge chip of the present invention; FIG. 3 is a perspective view of a second embodiment of the ink cartridge chip of the present invention; FIG. BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be further described below in conjunction with the drawings and embodiments. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Referring to Figure 2, Figure 2 is a block diagram showing the first embodiment of the ink cartridge chip of the present invention. The ink cartridge chip of this embodiment includes a substrate 1, an IC (not shown) and a contact 11, the IC and the contact 11 are electrically connected, and the IC and the contact 11 are both located on the substrate 1. The respective contacts 11 are arranged in parallel in the lateral direction of the substrate 1, and are arranged in a single row in the lateral direction of the substrate. Referring to Figure 3, each contact 11 is of equal length and has a length that is not less than the distance between the contacts of the upper and lower probes 32, 31 of the ink jet printer. Embodiment 2 Referring to FIG. 4, the ink cartridge chip of this embodiment is different from the first embodiment in that: the contact 21 on the ink cartridge chip substrate 2 is elongated, and the contact 21 extends from the bottom of the substrate 2 in the vertical direction of the substrate 2 to The top of the substrate 2. After the lengthened chip contacts, the precise positioning of the contacts and the printer probes can be better achieved, and the relative movement of the contacts and the probes in the vertical direction does not affect the effective contact between the two. Embodiment 3 This embodiment is an inkjet printer cartridge. The ink cartridge includes an ink container, an ink supply port, a chip, and the like. The main improvement of the ink cartridge of the present invention lies in the ink cartridge chip, and the ink cartridge chip can be used in the first embodiment or the implementation. Any of the structures in the second example. Of course, the structural composition of the chip of the present invention is not limited to the above-described embodiments, and it is also obvious that the respective contacts on the substrate may be unequal-length structures and the like. Any change that does not depart from the essence of the invention shall be It is intended to be included within the scope of the claims. INDUSTRIAL APPLICABILITY The chip and the ink cartridge of the present invention have improved the chip structure, and each contact is designed to be rectangular, and the length of each contact is longer than that of the existing chip, and the longer contact is advantageous for the ink cartridge. The chip contacts and the inkjet printer probe are well positioned in the vertical direction during loading into the inkjet printer; in addition, the elongated contacts prevent vertical contact of the contacts with the inkjet printer probe during printing. Each of the contacts is rectangular in its own shape, that is, the contacts are locally widened compared to the prior art, and the widened contacts can better guide the chip alignment.

Claims

Claim

1, the chip, including

a substrate, an IC fixed to the surface of the substrate and a set of contacts, the IC and the contact being electrically connected; the set of contacts being arranged in a single row along the lateral direction of the substrate;

It is characterized by:

The length of each contact along the vertical direction of the substrate is not less than the spacing between the contacts of the upper and lower probes of the printer and not greater than the length of the substrate.

2. The chip of claim 1 wherein:

The set of contacts are of equal length along the vertical direction of the substrate, and each contact is rectangular.

3. The chip of claim 1 wherein:

Each of the contacts extends from the bottom of the substrate to the top of the substrate in a vertical direction along the substrate.

4, ink cartridges, including

Ink container, ink supply port and chip;

The chip includes a substrate, an IC fixed on a surface of the substrate and a set of contacts, and the IC and the contacts are electrically connected; the set of contacts are arranged in a single row along the lateral direction of the substrate;

It is characterized by:

The length of each contact along the substrate is not less than the distance between the upper and lower probe contact points of the ink jet printer and is not greater than the substrate length.

5. The ink cartridge according to claim 4, wherein:

6. The ink cartridge according to claim 4, wherein:

Each of the contacts extends from the bottom of the substrate to the top of the substrate in the length direction of the substrate.