CN219133601U - Flexible interconnect circuit - Google Patents
Flexible interconnect circuit Download PDFInfo
- Publication number
- CN219133601U CN219133601U CN202223358438.6U CN202223358438U CN219133601U CN 219133601 U CN219133601 U CN 219133601U CN 202223358438 U CN202223358438 U CN 202223358438U CN 219133601 U CN219133601 U CN 219133601U
- Authority
- CN
- China
- Prior art keywords
- array group
- linear distance
- interconnect circuit
- flexible interconnect
- electrical contacts
- 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.)
- Active
Links
Images
Landscapes
- Ink Jet (AREA)
Abstract
A flexible interconnect circuit adapted for use on a flexible circuit board of a print cartridge, the flexible circuit board having an origin hole, the structure comprising: the flexible circuit board comprises a plurality of conducting channels, a plurality of connecting gaskets and an electric contact area, wherein the electric contact area is provided with a plurality of columnar array arranged electric contacts, the electric contacts are configured into a first array group arranged on two outer sides respectively, a second array group arranged on the inner side and a third array group symmetrically arranged on the flexible circuit board respectively by taking an origin hole as a datum point, the first array group keeps a first column direction linear distance between centers of the electric contacts adjacent to columns, and the second array group and the third array group keep the same second column direction linear distance between centers of the electric contacts adjacent to the columns.
Description
[ field of technology ]
The present disclosure relates to flexible printed circuits, and more particularly to a flexible printed circuit suitable for use in a print cartridge.
[ background Art ]
With the development and demand of technology, the present printout apparatus, for example: the ink-jet printer can print various files and forms, and can provide text data and digital photos for output, which is an indispensable output device in daily life and work. In general, inkjet printers use replaceable printing cartridges, so that when the ink stored in the printing cartridges is exhausted for printing, users can automatically replace the used printing cartridges and install new printing cartridges for performing inkjet printing. An electrical interconnection is used between the print cartridge and the inkjet printer so that operation of the print cartridge can be controlled by the inkjet printer.
As shown in fig. 1, a typical ink jet printer employs a printing ink cartridge 1, which is composed of an upper cover 10, a cartridge 11 and an ink jet print head assembly 15, wherein the upper cover 10 covers the cartridge 11, the ink jet print head assembly 15 is disposed below the cartridge 11, and a liquid storage space is provided in the cartridge 11 for storing ink. The cartridge 11 has a wall 12, and when the ink cartridge 1 is mounted on an ink jet printer (not shown), the wall 12 is disposed corresponding to a holder (not shown). The wall 12 has a flexible circuit board 13 thereon having a plurality of electrical contacts 14. When the ink jet cartridge 1 is mounted on the carriage of the ink jet printer, electrical contacts 14 on the flexible circuit board 13 of the ink jet cartridge 1 are electrically connected to corresponding conductive contacts (not shown) on the carriage to control and/or monitor the communication of electrical signals between the ink jet printer and the ink jet print head assembly 15 of the ink jet cartridge 1.
However, if the printing cartridge 1 is incorrectly mounted in the ink jet printer, damage may be caused. For example, if the print cartridge 1 is offset during installation, or if the electrical circuit on the flexible circuit board 13 of the print cartridge 1 has tolerance accuracy, or if the print cartridge 1 is used in another type of ink jet printer, the electrical circuit will be supplied incorrectly. If severe, damage may occur to the print cartridge 1, the ink jet printer, or both, which may also result in loss to the user. Therefore, the above-mentioned improper operation of the print cartridge 1 in the inkjet printer must be considered and avoided, and the specific interconnection circuits are designed to prevent the print cartridge 1 suitable for different inkjet printers from being operated or disabled after being installed, and the print cartridge 1 having the specific interconnection circuit can be installed only when the printer is started, so as to avoid the damage of the print cartridge 1 and the inkjet printer caused by the incorrect installation of the print cartridge 1 in the inkjet printer.
In view of this, it is an urgent need to develop a flexible interconnect circuit suitable for a print cartridge to solve the problem that the electrical circuit of the print cartridge cannot be properly connected to the inkjet printer due to incorrect installation of the print cartridge, and the print cartridge and the inkjet printer are damaged.
[ utility model ]
The present utility model provides a flexible interconnect circuit suitable for a print cartridge, which solves the problem that the electrical circuit of the print cartridge cannot be correctly corresponding to the ink jet printer due to incorrect installation of the print cartridge, and the print cartridge and the ink jet printer are damaged by the design of the specific flexible interconnect circuit corresponding to each other.
To achieve the above object, a broad aspect of the present utility model provides a flexible interconnect circuit, which is suitable for a flexible circuit board of a printing ink cartridge, and the flexible circuit board has an origin hole, the flexible interconnect circuit comprising: a plurality of conductive channels; a plurality of bond pads electrically connected to one ends of the plurality of conductive vias, respectively; and an electrical contact area configured with a plurality of electrical contacts arranged in a columnar array, each of the electrical contacts being electrically connected to the other end of the corresponding conductive via, the plurality of electrical contacts being configured to form a first array group disposed on both outer sides, and a second array group and a third array group disposed on the inner sides, the first array group having a number of electrical contacts greater than a number of electrical contacts of the second array group, the second array group having a number of electrical contacts greater than a number of electrical contacts of the third array group, a column direction linear distance between a bottom of the electrical contact center of the third array group to the origin hole being greater than a column direction linear distance between a bottom of the electrical contact center of the first array group to the origin hole, and a column direction linear distance between a bottom of the electrical contact center of the third array group to the origin hole being greater than a column direction linear distance between a bottom of the electrical contact center of the second array group to the origin hole, the column direction linear distance between a first array group and a bottom of the electrical contact center of the third array group being maintained at the same column direction linear distance between a first array group and a column direction linear distance between a bottom of the electrical contact center of the first array group to the origin hole, the column direction linear distance between a column of the first array group and a column direction of the first array group being maintained at the same as the column direction linear distance between a column direction of the first array contact center of the first array group and the first array center of electrical contact point, the third array group maintains a third row direction linear distance between the center of the electrical contact of the column and the origin hole.
[ description of the drawings ]
FIG. 1 is a schematic diagram of a printing ink cartridge of a typical ink jet printer.
Fig. 2 is a schematic structural diagram of a flexible circuit board according to a preferred embodiment of the present disclosure.
Fig. 3 is a schematic view showing the arrangement of the electrical contacts in the preferred embodiment of the present utility model.
[ symbolic description ]
1: printing ink cartridge
10: upper cover
11: box body
12: wall surface
13: circuit board
14: electrical contact
15: inkjet printhead assembly
2: flexible circuit board
2a: flexible interconnect circuit
20: origin hole
21: conduction channel
22: coupling gasket
23: electrical contact area
23a: electrical contact
A: first array group
B: second array group
C: third array group
P1: straight distance in first column direction
P2: straight distance in the second column direction
H1: straight distance in first row direction
H2: straight distance in the second row direction
And H3: straight distance in the third row direction
L: center line
X: direction of course
Y: direction of column
[ detailed description ] of the utility model
The embodiments for embodying features and advantages of the present utility model will be described in detail in the following description. It will be understood that various changes can be made in the above-described embodiments without departing from the scope of the utility model, and that the description and illustrations herein are to be taken in an illustrative and not a limiting sense.
Referring to fig. 1 and 2, a flexible interconnection circuit is provided for a print cartridge (not shown), for example, the print cartridge may be the print cartridge 1 shown in fig. 1, and the flexible interconnection circuit 2a is disposed on the flexible circuit board 2 of the print cartridge, and the flexible circuit board 2 has an origin hole 20. In some embodiments, the flexible circuit board 2 may be disposed on a rear wall (not shown) of the printing ink cartridge (not shown), or may be disposed on other walls, where the location may be changed according to the actual implementation.
It should be noted that the flexible interconnection circuit 2a includes: the plurality of conductive vias 21, the plurality of bond pads 22 and the electrical contact area 23, wherein the plurality of bond pads 22 are electrically connected to one end of the plurality of conductive vias 21, respectively, and the bond pads 22 are also electrically connected to an inkjet printhead assembly (not shown), and the electrical contact area 23 is configured with a plurality of electrical contacts 23a arranged in a columnar array, wherein each electrical contact 23a is electrically connected to the other end of its corresponding conductive via 21, i.e., the conductive via 21 extends between and provides an electrical connection between the electrical contact area 23 and the bond pad 22 of the inkjet printhead assembly, and the electrical contact area 23 is configured to provide an area for electrical connection with an inkjet printhead assembly (not shown) of a print cartridge.
It should be noted that the flexible circuit board 2 is formed of a flexible substrate, for example: polyimide (PI) or other elastomeric polymer material, but is not limited thereto. As described above, the flexible interconnect 2a disposed on the flexible circuit board 2 is composed of the bonding pad 22 corresponding to the inkjet printhead assembly (not shown), the conductive via 21, and the electrical contact region 23 corresponding to the conductive via 21, and the material of the flexible interconnect may be copper, gold, or any other conductive material, but is not limited thereto. In this embodiment, the electrical contact area 23 is a conductive area exposed by an opening in the flexible substrate, and in this conductive area, the plurality of electrical contacts 23a are arranged in a columnar array with a plurality of rows aligned longitudinally and laterally. The shape of the plurality of electrical contacts 23a may be, but is not limited to, circular, octagonal, square with rounded corners or beveled corners, or some other shape.
In further embodiments, the number of the plurality of electrical contacts 23a of the electrical contact area 23 is 36, but not limited thereto. In some embodiments, the electrical contacts 23a are electrically connected to the plurality of bonding pads 22 via the conductive vias 21, and the number of electrical contacts 23a is at least one or more, and thus may be at least 36 or more, and sometimes the number of electrical contacts 23a may be less than 36, depending on the design; furthermore, the coordinates of the geometric center of each electrical contact 23a are defined as (x, y) and fall within any one of the square areas, and as shown in fig. 3, the vertices of the square area are respectively formed by four points (x+2.75, y+2.75), (x-2.75, y-2.75) and (x+2.75, y-2.75), so that any one of the geometric center coordinates of any electrical contact 23a falls within any one of the square areas is covered by the present embodiment.
The plurality of electrical contacts 23a are arranged to form a first array group a disposed on the two outer sides, and a second array group B and a third array group C disposed on the inner sides. The first array group a, the second array group B and the third array group C are symmetrically arranged with respect to the origin hole 20 of the flexible circuit board 2 and the longitudinal center line L thereof. In other words, the flexible circuit board 2 has a left and right first array group a, the first array group a has the same number and arrangement of the plurality of electrical contacts 23a, the flexible circuit board 2 has a left and right second array group B, the second array group B has the same number and arrangement of the plurality of electrical contacts 23a, the flexible circuit board 2 has a left and right third array group C, and the third array group C has the same number and arrangement of the plurality of electrical contacts 23 a. Wherein the number of electrical contacts 23a of the first array group a is greater than the number of electrical contacts 23a of the second array group B, the number of electrical contacts 23a of the second array group B is greater than the number of electrical contacts 23a of the third array group C, and a column direction linear distance between a center of a bottommost electrical contact 23a of the third array group C and the origin hole 20 is greater than a column direction linear distance between a center of a bottommost electrical contact 23a of the first array group a and the origin hole 20, and a column direction linear distance between a center of a bottommost electrical contact 23a of the third array group C and the origin hole 20 is greater than a column direction linear distance between a center of a bottommost electrical contact 23a of the second array group B and the origin hole 20. In the present embodiment, the number of electrical contacts 23a of the first array group a is 16, the number of electrical contacts 23a of the second array group B is 14, and the number of electrical contacts 23a of the third array group C is 6, but not limited thereto.
In this embodiment, each first array group a maintains a first column-direction linear distance P1 between centers of the adjacent electrical contacts 23a, and the first column-direction linear distance P1 is between 5.9 and 9.35 millimeters (mm). In one embodiment, the first column direction linear distance P1 is preferably 6.6 millimeters (mm). The second array group B and the third array group C maintain the same second column-direction linear distance P2 between the centers of the adjacent column electrical contacts 23a, and the second column-direction linear distance P2 is between 6.5 and 9.95 millimeters (mm). In one embodiment, the second column direction linear distance P2 is preferably 7.2 millimeters (mm). Each first array group a maintains a first row-wise linear distance H1 between the center of the electrical contact 23a of the column and the origin hole 20, the first row-wise linear distance H1 being between 21.05 and 26.55 millimeters (mm). In one embodiment, the first course direction straight line distance H1 is optimally 23.8 millimeters (mm). Each second array group B maintains a second row-wise linear distance H2 between the center of the column of electrical contacts 23a and the origin hole 20, the second row-wise linear distance H2 being between 13.95 and 19.45 millimeters (mm). In one embodiment, the second course direction straight line distance H2 is optimally 16.7 millimeters (mm). Each third array group C maintains a third row-wise linear distance H3 between the center of the column of electrical contacts 23a and the origin hole 20, the third row-wise linear distance H3 being between 7.05 and 12.55 millimeters (mm). In one embodiment, the third course direction straight line distance H3 is optimally 9.8 millimeters (mm).
In summary, by the design of the specific and unique configuration mode of the electrical contact area in the flexible interconnection circuit, the corresponding inkjet printer is correctly disposed correspondingly, so as to avoid the problem that the electrical circuit of the printing ink cartridge cannot be correctly connected correspondingly to the inkjet printer due to incorrect mounting of the printing ink cartridge, and further the printing ink cartridge and the inkjet printer are damaged.
Even though the present utility model has been described in detail with reference to the above embodiments, it will be apparent to one skilled in the art that modifications may be made thereto without departing from the scope of the utility model as defined in the appended claims.
Claims (14)
1. A flexible interconnect circuit adapted for use on a flexible circuit board of a printing ink cartridge, the flexible circuit board having an origin hole, wherein the flexible interconnect circuit comprises:
a plurality of conductive channels;
a plurality of bond pads electrically connected to one ends of the plurality of conductive vias, respectively; and
an electric contact area configured with a plurality of electric contacts arranged in a column array, each of the electric contacts is electrically connected with the other end of the corresponding conductive channel, the electric contacts are respectively arranged on a first array group on the outer side, a second array group and a third array group on the inner side, the electric contacts are symmetrically arranged on the flexible circuit board by taking the origin hole as a datum point,
wherein the number of the electrical contacts of the first array group is greater than the number of the electrical contacts of the second array group, the number of the electrical contacts of the second array group is greater than the number of the electrical contacts of the third array group, a column direction straight line distance between a bottommost electrical contact center of the third array group and the origin hole is greater than a column direction straight line distance between a bottommost electrical contact center of the first array group and the origin hole, a column direction straight line distance between a bottommost electrical contact center of the third array group and the origin hole is greater than a column direction straight line distance between a bottommost electrical contact center of the second array group and the origin hole,
wherein the first array group maintains a first column-wise linear distance between the centers of the electrical contacts that are adjacent in columns, the second array group and the third array group maintain the same second column-wise linear distance between the centers of the electrical contacts that are adjacent in columns,
the first array group maintains a first horizontal linear distance between the center of the electrical contact of the column and the origin hole, the second array group maintains a second horizontal linear distance between the center of the electrical contact of the column and the origin hole, and the third array group maintains a third horizontal linear distance between the center of the electrical contact of the column and the origin hole.
2. The flexible interconnect circuit of claim 1 wherein the first column direction linear distance is between 5.9 and 9.35 millimeters (mm).
3. The flexible interconnect circuit of claim 1 wherein the first column direction linear distance is 6.6 millimeters (mm).
4. The flexible interconnect circuit of claim 1 wherein the second column direction linear distance is between 6.5 and 9.95 millimeters (mm).
5. The flexible interconnect circuit of claim 1 wherein the first course direction linear distance is between 21.05 and 26.55 millimeters (mm).
6. The flexible interconnect circuit of claim 1 wherein the first course direction linear distance is 23.8 millimeters (mm).
7. The flexible interconnect circuit of claim 1 wherein the second course direction linear distance is between 13.95 and 19.45 millimeters (mm).
8. The flexible interconnect circuit of claim 1 wherein the second course direction linear distance is 16.7 millimeters (mm).
9. The flexible interconnect circuit of claim 1 wherein the third course direction linear distance is between 7.05 and 12.55 millimeters (mm).
10. The flexible interconnect circuit of claim 1 wherein the third course direction linear distance is 9.8 millimeters (mm).
11. The flexible interconnect circuit of claim 1 wherein the electrical contacts are 36.
12. The flexible interconnect circuit of claim 1 wherein the electrical contacts of the first array group are 16.
13. The flexible interconnect circuit of claim 1 wherein the number of electrical contacts of the second array group is 14.
14. The flexible interconnect circuit of claim 1 wherein the number of electrical contacts of the third array group is 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW111147429 | 2022-12-09 | ||
| TW111147429 | 2022-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219133601U true CN219133601U (en) | 2023-06-06 |
Family
ID=86600385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223358438.6U Active CN219133601U (en) | 2022-12-09 | 2022-12-14 | Flexible interconnect circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219133601U (en) |
-
2022
- 2022-12-14 CN CN202223358438.6U patent/CN219133601U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7101021B2 (en) | Connection apparatus for circuit board, ink jet type recording apparatus using the same, IC chip and ink cartridge having IC chip | |
| US7149090B2 (en) | Structure of flexible printed circuit board | |
| CN1990255B (en) | Printing material container, and board mounted on printing material container | |
| CN101712238B (en) | Printing material container and circuit board equipped thereon | |
| JP6624801B2 (en) | Liquid ejection cartridge and liquid ejection device | |
| US5411343A (en) | Redundant make/break interconnect for a print head | |
| CN211416654U (en) | Chip mounted on ink box and ink box using chip | |
| CN110816071A (en) | Ink box chip, printing ink box and ink-jet printer | |
| JP7164845B2 (en) | Imaging cartridges and chips applied to imaging cartridges | |
| US7419237B2 (en) | Recording head unit | |
| CN219133601U (en) | Flexible interconnect circuit | |
| JPH08244245A (en) | Printer | |
| CN107962873B (en) | Ink box chip, ink box and ink-jet printer | |
| CN211684116U (en) | Chip mounted on ink box and ink box using chip | |
| US7396111B2 (en) | Inkjet head and inkjet printer | |
| CN118163485A (en) | Flexible interconnect circuit | |
| JP2002234191A (en) | Electric contact device for ink jet printer | |
| US7025441B2 (en) | Ink jet print head | |
| US4554559A (en) | Thermal print head | |
| CN211892486U (en) | Ink box chip, printing ink box and ink-jet printer | |
| JP2004358912A (en) | Head cartridge | |
| US6007185A (en) | Recording head, head cartridge and recording apparatus with flexible substrate coupling | |
| CN219838345U (en) | Chip and printing consumable thereof | |
| JPS6034870A (en) | Ink jet printer | |
| CN220009213U (en) | Printing consumable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |