CN1291843C - Ink cartridge and ink cartridge body structure with multiple compartments - Google Patents

Abstract

An ink cartridge and an ink cartridge body structure with a plurality of compartments, the ink cartridge includes a body, a sealing member, and an ink jet driving chip, the body has a first chamber, a second chamber, a third chamber, a first outlet, a second outlet, a third outlet, an opening, and a flow channel, wherein the first chamber and the third chamber are respectively positioned at two sides of the second chamber, the second outlet and the third outlet are respectively positioned at two sides of the first outlet, the second chamber and the second outlet are communicated in an overlapping manner, so that the ink in the second chamber directly flows to the second outlet, the third chamber and the third outlet are communicated in an overlapping mode, so that the ink in the third chamber directly flows to the third outlet, the first chamber is communicated with the first outlet through the flow channel, and the ink in the first chamber flows to the first outlet through the flow channel; the sealing member is disposed on the opening, and a single flow path is sealed by a single sealing member to prevent mixing of the inks.

Description

Ink cartridge and ink cartridge body structure with multiple compartments

technical field

The invention relates to an ink box and an ink box body structure with multiple compartments, in particular to an ink box which can simplify the manufacturing process and prevent ink mixing.

Background technique

Inkjet printing technology has been developed for many years. The main advantages of this kind of printer are low price, low noise, good full-color printing quality, and different carriers such as general paper, special printing paper and special transparencies. . The so-called inkjet printing method is a non-contact method in which droplets in the ink are ejected onto the carrier.

The inkjet ink cartridges of inkjet printers can be roughly divided into three types, one is the ink cartridge that can be separated from the inkjet head device and the printer, such as Epson (Epson), and the second is that the inkjet head, the ink cartridge and the printer are separable , such as Canon (Canon), and the third type is an ink cartridge in which the inkjet head and the ink cartridge are integrated, such as Hewlett-Packard (HP) and Lexmark (Lexmark). Regardless of the type of ink cartridge, the ink flows from the ink storage chamber through the ink flow channel to the inkjet head for inkjet printing.

U.S. Patent No. 5,831,653 discloses a known ink cartridge, as shown in Figures 1a, 1b, and 1c, wherein Figure 1a is a perspective view thereof, partially cut away, and Figure 1b is a perspective view viewed from the bottom surface, and Figure 1c is A perspective view from another angle, partially cut away.

1a, 1b, the ink cartridge 100 has three chambers 110, 120, 130, the ink in the chamber 110 flows out from the outlet 112 through the flow channel 111 along the arrow a1, and the ink in the chamber 130 flows out through the flow channel 131 The ink flows out from the outlet 132 along the arrow a3, and since the chamber 120 overlaps with the outlet 121, the ink therein can flow out from the outlet 121 directly along the arrow a2.

Since the flow channel design of the ink cartridge 100 needs to make the chambers on both sides pass through different flow channels respectively, the ink can flow out from its outlet, so as shown in FIG. 1c, an opening is formed on both sides of the ink cartridge 100 during manufacture. 140, and then a plug 150 needs to be plugged into the opening 140 during assembly, so as to prevent the ink inside from flowing to the outside through the opening 140.

However, since there are openings on both sides, two plugs are required for sealing during assembly, which makes the assembly process complicated; in addition, US Patent No. 5,497,198 and US Patent No. 5,576,750 also have similar structures.

US Patent No. 6,260,961B1 discloses another known ink cartridge 200. As shown in FIG. The two openings 241, 242 of the channel, and during subsequent assembly, only need to use a plug 250 to seal the two openings 241, 242.

US Patent No. 5497178 discloses a color inkjet printhead comprising a printhead body containing ink and having a nozzle assembly and an electrical connector connected to the nozzle assembly. The printhead body defines channels that supply ink from ink chambers within the printhead body to the nozzle assembly. The printhead body contains three ink chambers for three different colors of ink, each ink chamber being connected by a separate channel in the printhead body to a separate part of the nozzle assembly. The ink flow channels in the printhead body are designed to ensure that each color of ink is isolated from the other. The print head body includes a side wall and a bottom, and the bottom of the print head body defines three outlets communicating with the nozzle assembly. One nozzle port communicates with an opening in the bottom of one ink chamber, and each of the other two outlets communicates with a different cross-flow channel in the bottom of the printhead body, which in turn communicates with an opening in the bottom of a different ink chamber.

An ink container is disclosed in US Patent No. 6527382, which includes a housing, a printing head and a fluid chamber. The housing has two sloped walls that divide the fluid chamber into a central inkwell and two side inkwells, each inkwell having a sloped inner surface. Each side ink well is formed between the inclined wall and the side wall. The slope of the inner surface of each side wall is greater than the slope of each inclined wall, so that the width of each side ink well gradually decreases from top to bottom.

However, since the two openings forming the two ink flow channels are sealed by means of the same plug, there is a risk of mixing of inks in different chambers in the event of a manufacturing error.

Contents of the invention

In view of this, the present invention provides an ink cartridge and an ink cartridge body structure with a plurality of compartments, which can not only simplify the manufacturing process, but also prevent the occurrence of ink mixing problems.

In detail, in the ink cartridge of the present invention, different flow paths are provided for inks of different colors, and because when integrally formed by injection molding, the closed flow paths that cannot be formed in the mold can be used. A part closes the opening of the outer wall connecting the flow channel; moreover, in order to avoid defects in the process of forming the closed flow channel and the formed structure, which will cause different color inks to mix and cannot perform the function of inkjet printing normally, therefore, It is designed to use a single flow channel independently for different color inks, and only use a single part to close a single outer wall opening, thereby forming a closed flow channel method, which not only simplifies the assembly process, but also because different inks do not share the outer wall opening, so the closed When the outer wall is open, the problem of ink mixing will not occur due to the fault in the manufacturing process, thereby improving the problem of ink mixing in the inkjet printing ink cartridge and reducing the risk of defective products.

According to the present invention, there is provided an ink cartridge for ejecting ink, an ink cartridge comprising: a body having a first chamber, a second chamber, a third chamber, a first outlet, a second outlet, The third outlet, opening, and flow channel, wherein the first chamber, the second chamber, and the third chamber are respectively used to accommodate ink, and it is characterized in that the second chamber directly communicates with the first chamber in an overlapping manner. Two outlets, so that the ink in the second chamber directly flows to the second outlet, and the third chamber directly communicates with the third outlet in an overlapping manner, so that the ink in the third chamber directly flows to the third outlet an outlet, and the flow channel communicates the first chamber with the first outlet, so that the ink in the first chamber flows to the first outlet through the flow channel; and a sealing member, which is provided on the flow channel through the opening The channel is used to seal the opening and prevent ink flowing from the first chamber to the first outlet from flowing out of the opening. In a preferred embodiment, the first hole and the first chamber do not overlap each other.

In another preferred embodiment, the sealing member and the body are made of the same material.

In another preferred embodiment, the material of the part of the body adjoining the opening has a lower hardness than the material of other parts of the body.

In another preferred embodiment, the first chamber, the second chamber and the third chamber are formed in the body in a parallel manner.

In another preferred embodiment, the sealing member includes a bottom and an extension part, the bottom is arranged on the opening in a manner that is tightly fitted to the opening, and is used to seal the flow channel, and the extension part is positioned on the opening in a manner corresponding to the shape of the flow channel. Extending in the flow channel, the ink from the first chamber can flow smoothly in the flow channel.

Furthermore, the first chamber is formed with a through hole, and the extension of the sealing member is adjacent to the through hole.

In another preferred embodiment, the first chamber and the first outlet do not overlap each other.

In another preferred embodiment, the first chamber, the second chamber, and the third chamber are respectively formed with a first inlet, a second inlet, and a third inlet for the ink to flow in, and the ink The box also includes an outer cover for sealing the first inlet, the second inlet, and the third inlet.

In another aspect of the present invention, there is provided an ink cartridge body structure having a plurality of compartments, comprising: an integrally formed body having a first chamber, a second chamber, a third chamber, a first outlet , a second outlet, a third outlet, an opening, and a flow channel, wherein the first chamber, the second chamber, and the third chamber are respectively used to accommodate ink, wherein the second chamber is The overlapping mode is directly connected to the second outlet, so that the ink in the second chamber directly flows to the second outlet, and the third chamber is directly connected to the third outlet in an overlapping manner, so that the ink in the third chamber directly flows to the second outlet. The third outlet, and the flow channel communicates the first chamber with the first outlet, so that the ink in the first chamber flows to the first outlet through the flow channel, wherein the body and the flow channel are composed of a single member form.

In order to make the above and other objects, features, and advantages of the present invention more comprehensible, a preferred embodiment is exemplified below and described in detail with reference to the accompanying drawings.

Description of drawings:

Figure 1a is a perspective view of a known ink cartridge disclosed in US Pat. No. 5,831,653, with part cut away;

Figure 1b is another perspective view of the ink cartridge in Figure 1a viewed from the bottom;

Fig. 1c is another perspective view of the ink cartridge in Fig. 1a viewed from another angle, and part of it is cut away;

2 is a perspective view of a known ink cartridge disclosed in U.S. Patent No. 6,260,961B1;

Figure 3a is a schematic perspective view of the first embodiment of the ink cartridge of the present invention;

Figure 3b is a sectional view of the ink cartridge in Figure 3a;

Figure 3c is a top view of the ink cartridge in Figure 3a, showing the relationship between the chambers and the outlets;

Figure 3d is a schematic diagram showing the relationship between the second chamber, the sealing member, and the flow channel;

Fig. 4 is the top view of the second embodiment of the ink cartridge of the present invention;

Figure 5 is a top view of a third embodiment of the ink cartridge of the present invention; and

FIG. 6 is a top view of a fourth embodiment of the ink cartridge of the present invention.

Detailed ways

first embodiment

3a, 3b, 3c, 3d show the ink cartridge 300 of the first embodiment of the present invention, which can be used to eject ink I, and includes a body 310, a sealing member 320, an inkjet driver chip 330, and an outer The cover 340, the body 310 and the sealing member 320 constitute the body structure 700 of the ink cartridge of this embodiment.

The main body 310 is a container shape, by means of its outer wall, the ink I is contained in the main body 310, and by means of its inner wall, the inside of the main body 310 is divided into a first chamber 311, a second chamber 312, and a third chamber 313, wherein the first chamber 311, the second chamber 312, and the third chamber 313 are respectively used to accommodate inks of different colors, and the first chamber 311 and the third chamber 313 are respectively located at the sides of the second chamber 312 Both sides, ie, the first chamber 311 , the second chamber 312 , and the third chamber 313 are formed in the body 310 in a juxtaposed manner.

The first chamber 311 , the second chamber 312 , and the third chamber 313 respectively form a first inlet 311 b , a second inlet 312 b , and a third inlet 313 b at their upper portions for the ink to flow in.

Furthermore, the body 310 also has a first outlet 314, a second outlet 315, and a third outlet 316 at its bottom, and an opening 318 is formed on its side, and a flow channel 317 is formed inside it, wherein the second The outlet 315 and the third outlet 316 are respectively located on two sides of the first outlet 314 .

Referring to Fig. 3c, the second chamber 312 and the second outlet 315 communicate in an overlapping manner, so that the ink in the second chamber 312 can directly flow to the second outlet 315; moreover, the third chamber 313 and the second outlet 315 The three outlets 316 are also communicated in an overlapping manner, so that the ink in the third chamber 313 can directly flow to the third outlet 316 .

Furthermore, referring to FIG. 3 d , the first chamber 311 is formed with a through hole 311 a so that the ink in the first chamber 311 can flow into the channel 317 .

Since in the ink cartridge 300 of this embodiment, the ink in the two chambers 312, 313 can directly flow to the two outlets 315, 316 without communicating with the flow channel, the ink cartridge body of the present invention In the structure 700, it is only necessary to set a channel 317 in the body 310, and the channel 317 is used to connect the first chamber 311 and the first outlet 314, so that the ink in the first chamber 311 can flow to the first outlet 317 through the channel 317. An outlet 314, in other words, the first chamber 311 and the first outlet 314 do not overlap each other.

Furthermore, since only one flow channel 317 needs to be set in the body 310 of the ink cartridge 300 of the present embodiment, therefore, when manufacturing the body 310, only a male mold needs to be plugged into one side, that is, the body 310 is integrally formed Finally, only a single opening 318 is left on one side; it should be noted that: preferably, the material hardness of the part of the body 310 adjacent to the opening 318 is lower than that of other parts of the body 310 .

The sealing member 320 is disposed in the flow channel 317 of the body 310 through the opening 318 to seal the opening 318 and prevent the ink flowing from the first chamber 311 to the first outlet 314 from flowing out of the opening 318. In the ink cartridge 300 of the embodiment, a single flow path 317 is sealed with a single sealing member 320 , so ink in different chambers can be reliably prevented from mixing.

Moreover, the sealing member 320 includes a bottom 321 and an extension 322, the bottom 321 is arranged on the opening 318 in a manner that is closely connected with the opening 318, and is used to seal the opening 318, and the extension 322 is shown in Figure 3c, 3d, Extend in the flow channel 317 in a manner corresponding to the shape of the flow channel 317 , so that the ink from the first chamber 311 can flow smoothly in the flow channel 317 .

Furthermore, as shown in FIG. 3 d , the extension portion 322 of the sealing member 320 can be adjacent to the through hole 311 a of the first chamber 311 to guide the ink in the first chamber 311 to flow into the flow channel 317 .

It should be appreciated that the sealing member 320 and the body 310 may be made of the same material.

The inkjet driver chip 330 is arranged on the bottom of the body 310, and has a first hole 331, a second hole 332, and a third hole 333, wherein the second hole 332 and the third hole 333 are respectively located on two sides of the first hole 331. side. When the inkjet driver chip 330 is disposed on the bottom of the body 310, the first hole 331, the second hole 332, and the third hole 333 correspond to the first outlet 314, the second outlet 315, and the third hole 333 on the body 310 in sequence. Three outlets 316; that is, the first hole 331 of the inkjet driver chip 330 and the first chamber 311 of the body 310 do not overlap with each other.

The outer cover 340 is disposed on the upper portion of the body 310 for sealing the first inlet 311b, the second inlet 312b, and the third inlet 313b.

Through the above structure, in the ink cartridge of this embodiment, inks of different colors flow through different channels, and when integrally formed by injection molding, only one closed channel is formed in the body, so only a single channel can be used The part can close the opening of the outer wall connecting the flow channel, thereby avoiding defects in the process and result of forming the closed flow channel, which will cause inks of different colors to mix and cannot normally perform the normal function of inkjet printing.

Furthermore, designing different color inks to use flow channels independently, and using only a single part to close a single outer wall opening to form a closed flow channel can simplify the assembly process; in addition, different inks do not share the outer wall opening, and the outer wall opening is closed , there will be no ink mixing problem due to negligence in the manufacturing process, avoiding the problem of ink mixing in inkjet printing ink cartridges, and reducing the risk of defective products.

second embodiment

FIG. 4 shows an ink cartridge 400 according to a second embodiment of the present invention, which includes a body 410, a sealing member 420, and an inkjet drive chip 430. It should be understood that in this embodiment, the connection with the second embodiment is omitted. A description of the same structure as an embodiment, for example, an outer cover and the like.

The body 410 divides the interior of the body 410 into a first chamber 411, a second chamber 412, and a third chamber 413 by means of inner walls, wherein the first chamber 411 and the third chamber 413 are respectively located in the second chamber 412 The two sides, that is, the first chamber 411, the second chamber 412, and the third chamber 413 are formed in the body 410 in a juxtaposed manner; it should be noted that in this embodiment, the second chamber 412 and The partition 419b between the third chamber 413 is an inclined plane, as shown in Figure 4, that is, the partition 419b separating the second chamber 412 and the third chamber 413 is separated from the partition 419b separating the first chamber 411 and the second chamber. The partitions 419a of the chamber 412 are not parallel to each other.

Moreover, the body 410 also has a first outlet 414 , a second outlet 415 , and a third outlet 416 at its bottom, and an opening 418 is formed on its side, and a flow channel 417 is formed inside it.

Referring to Fig. 4, the second chamber 412 and the second outlet 415 communicate with each other in an overlapping manner, so that the ink in the second chamber 412 can directly flow to the second outlet 415; and, the third chamber 413 and the third The outlets 416 are also communicated in an overlapping manner so that the ink in the third chamber 413 can flow directly to the third outlet 416 .

Because in the ink cartridge 400 of the present embodiment, the ink in the existing two chambers 412, 413 can directly flow to the two outlets 415, 416 without being communicated by means of a flow channel, so in the ink cartridge of the present invention In 400, only one flow channel 417 needs to be set in the body 410, and the flow channel 417 is used to connect the first chamber 411 and the first outlet 414, so that the ink in the first chamber 411 can flow to the first chamber 417 through the flow channel 417. An outlet 414, in other words, the first chamber 411 and the first outlet 414 do not overlap each other.

Furthermore, since only one flow channel 417 needs to be set in the body 410 of the ink cartridge 400 of the present embodiment, when the body 410 is manufactured, only a male mold needs to be plugged into one side, that is, the body 410 is integrally formed Finally, only a single opening 418 is left on one side.

The sealing member 420 is disposed in the flow channel 417 of the body 410 through the opening 418, and is used to seal the opening 418 and prevent the ink flowing from the first chamber 411 to the first outlet 414 from flowing out of the opening 418, thereby, due to the In the ink cartridge 400 of the embodiment, a single flow path 417 is sealed by a single sealing member 420 , so that mixing of inks in different chambers can be reliably prevented.

The inkjet driver chip 430 is arranged on the bottom of the body 410, and has a first hole 431, a second hole 432, and a third hole 433, wherein the second hole 432 and the third hole 433 are respectively located on two sides of the first hole 431. side, and when the inkjet drive chip 430 is arranged at the bottom of the body 410, since the partition 419b between the second chamber 412 and the third chamber 413 of the body 410 is an inclined plane, the first hole 431, the second The hole 432 and the third hole 433 may respectively correspond to the first outlet 414 , the second outlet 415 and the third outlet 416 of the body 410 in sequence.

Through the above structure, in the ink cartridge of this embodiment, inks of different colors flow through different flow channels respectively, and when integrally formed by injection molding, only one closed flow channel is formed in the body, so only a single flow channel can be used The part can close the opening of the outer wall connecting the flow channel, thereby avoiding defects in the process and result of forming the closed flow channel, which will cause different color inks to mix and cannot normally perform the normal function of inkjet printing.

Furthermore, the flow channel is designed to be used independently by different color inks, and only a single part is used to close the single outer wall opening to form a closed flow channel, which can simplify the assembly process; in addition, different inks do not share the outer wall opening, and the outer wall is closed. When opening, there will be no problem of ink mixing due to negligence in the manufacturing process, avoiding the problem of ink mixing in inkjet printing ink cartridges, and reducing the risk of defective products.

third embodiment

FIG. 5 shows an ink cartridge 500 according to a third embodiment of the present invention, which includes a body 510, a sealing member 520, and an inkjet drive chip 530. It should be understood that in this embodiment, the connection with the second A description of the same structure as an embodiment, for example, an outer cover and the like.

The body 510 divides the interior of the body 510 into a first chamber 511, a second chamber 512, and a third chamber 513 by means of an inner wall, wherein the second chamber 512 and the third chamber 513 are formed in the body in a parallel manner 510, while the second chamber 512 and the third chamber 513 are located on the same side of the first chamber 511, that is, the chambers 511, 512, 513 are arranged adjacent to each other, and are arranged in a row and in two rows Arrangement.

Furthermore, the body 510 also has a first outlet 514 , a second outlet 515 , and a third outlet 516 at its bottom, and an opening 518 is formed on its side, and a flow channel 517 is formed inside it.

Referring to Fig. 5, the second chamber 512 and the second outlet 515 communicate with each other in an overlapping manner, so that the ink in the second chamber 512 can directly flow to the second outlet 515; and, the third chamber 513 and the third The outlets 516 are also communicated in an overlapping manner, so that the ink in the third chamber 513 can flow directly to the third outlet 516 .

Since in the ink cartridge 500 of this embodiment, the ink in the two chambers 512, 513 can directly flow to the two outlets 515, 516 without communicating with the flow channel, so in the ink cartridge 500 of the present invention In this case, only one channel 517 needs to be set in the body 510, and this channel 517 is used to connect the first chamber 511 and the first outlet 514, so that the ink in the first chamber 511 can flow to the first chamber 517 through the channel 517. The outlet 514, in other words, the first chamber 511 and the first outlet 514 do not overlap each other.

Furthermore, since only one flow channel 517 needs to be set in the body 510 of the ink cartridge 500 of the present embodiment, therefore, when manufacturing the body 510, only a male mold needs to be plugged into one side, that is, the body 510 is integrally formed Finally, only a single opening 518 is left on one side.

The sealing member 520 is disposed in the flow channel 517 of the body 510 through the opening 518, and is used to seal the opening 518 and prevent the ink flowing from the first chamber 511 to the first outlet 514 from flowing out of the opening 518. In the ink cartridge 500 of the example, a single flow path 517 is sealed by a single sealing member 520, so that mixing of inks in different chambers can be reliably prevented.

The inkjet driver chip 530 is arranged at the bottom of the body 510, and has a first hole 531, a second hole 532, and a third hole 533, wherein the second hole 532 and the third hole 533 are respectively located on two sides of the first hole 531. side, and when the inkjet driver chip 530 is arranged at the bottom of the body 510, the first hole 531, the second hole 532, and the third hole 533 respectively correspond to the first outlet 514, the second outlet 515, the second outlet 515, And the third outlet 516; that is, the first hole 531 of the inkjet driver chip 530 and the first chamber 511 of the body 510 do not overlap with each other.

Furthermore, in this embodiment, the holes 531, 532, and 533 of the inkjet driver chip 530 are arranged in a straight line, that is, the first hole 531, the second hole 532, and the third hole 533 are arranged in a straight line. , and this line is substantially parallel to the partition 519 separating the first chamber 511 and the second chamber 512 .

Through the above structure, in the ink cartridge of this embodiment, inks of different colors flow through different flow channels respectively, and when integrally formed by injection molding, only one closed flow channel is formed in the body, so only a single flow channel can be used The part can close the opening of the outer wall connecting the flow channel, thereby avoiding defects in the process and result of forming the closed flow channel, which will cause different color inks to mix and cannot normally perform the normal function of inkjet printing.

Furthermore, the flow channel is designed to be used independently by different color inks and only a single part is used to close a single outer wall opening to form a closed flow channel, which can simplify the assembly process; in addition, different inks do not share the outer wall opening. , There will be no ink mixing problem due to negligence in the manufacturing process, avoiding the problem of ink mixing in inkjet printing ink cartridges, and reducing the risk of defective products.

Fourth embodiment

FIG. 6 shows an ink cartridge 600 according to a fourth embodiment of the present invention, which includes a body 610, a sealing member 620, and an inkjet drive chip 630. It should be understood that in this embodiment, the connection with the second A description of the same structure as an embodiment, for example, an outer cover and the like.

The body 610 divides the inside of the body 610 into a first chamber 611, a second chamber 612, and a third chamber 613 by means of an inner wall, wherein the second chamber 612 and the third chamber 613 are formed in the body in a parallel manner 610, while the second chamber 612 and the third chamber 613 are located on the same side of the first chamber 611, that is, the chambers 611, 612, 613 are arranged in a row and two rows.

Furthermore, the body 610 also has a first outlet 614 , a second outlet 615 , and a third outlet 616 at its bottom, and an opening 618 is formed on its side, and a flow channel 617 is formed inside it.

Referring to Fig. 6, the second chamber 612 and the second outlet 615 communicate with each other in an overlapping manner, so that the ink in the second chamber 612 can directly flow to the second outlet 615; and, the third chamber 613 and the third The outlets 616 are also communicated in an overlapping manner so that the ink in the third chamber 613 can flow directly to the third outlet 616 .

Because in the ink cartridge 600 of the present embodiment, the ink in the two chambers 612, 613 can directly flow to the two outlets 615, 616 without communicating with the flow channel, so in the ink cartridge 600 of the present invention In this case, only one channel 617 needs to be set in the body 610, and this channel 617 is used to communicate the first chamber 611 and the first outlet 614, so that the ink in the first chamber 611 can flow to the first chamber 617 through the channel 617. The outlet 614, in other words, the first chamber 611 and the first outlet 614 do not overlap each other.

Furthermore, since only one flow channel 617 needs to be set in the body 610 of the ink cartridge 600 of the present embodiment, therefore, when manufacturing the body 610, only a male mold needs to be plugged into one side, that is, the body 610 is integrally formed Finally, only a single opening 618 is left on one side.

The sealing member 620 is disposed in the flow channel 617 of the body 610 through the opening 618, and is used to seal the opening 618 and prevent the ink flowing from the first chamber 611 to the first outlet 614 from flowing out of the opening 618. In the ink cartridge 600 of the example, a single flow path 617 is sealed by a single sealing member 620, so that mixing of inks in different chambers can be reliably prevented.

The inkjet driver chip 630 is arranged at the bottom of the body 610, and has a first hole 631, a second hole 632, and a third hole 633, wherein the first hole 631 and the second hole 632 are respectively located at two ends of the third hole 633. Side; It should be noted that the form of the inkjet drive chip of this embodiment is different from the form of the inkjet drive chip of the above three embodiments, that is, the inkjet drive chips of the above three embodiments are arranged in a straight line, and this embodiment The inkjet driving chips of the embodiment are arranged horizontally, so that when the inkjet driving chip 630 is arranged at the bottom of the body 610, the first hole 631, the second hole 632, and the third hole 633 respectively correspond to the holes of the body 610 in sequence. The first outlet 614 , the second outlet 615 , and the third outlet 616 ; that is, the first hole 631 of the inkjet driver chip 630 and the first cavity 611 of the body 610 do not overlap with each other.

Furthermore, since in this embodiment, the holes 631, 632, 633 of the inkjet driver chip 630 are arranged horizontally, that is, the straight line and the line separating the first hole 631, the second hole 632, and the third hole 633 The partition 619 a of the second chamber 612 and the third chamber 613 are substantially parallel, and the first hole 631 is closer to the partition 619 b separating the first chamber 611 and the second chamber 612 than the second hole 632 .

Through the above structure, in the ink cartridge of this embodiment, inks of different colors flow through different flow channels respectively, and when integrally formed by injection molding, only one closed flow channel is formed in the body, so only a single flow channel can be used The part can close the opening of the outer wall connecting the flow channel, thereby avoiding defects in the process and result of forming the closed flow channel, which will cause inks of different colors to mix and fail to perform normal functions of inkjet printing.

Furthermore, the flow channel is designed to be used independently by different color inks, and the method of forming a closed flow channel by using only a single part to close a single outer wall opening can simplify the assembly process; in addition, different inks do not share the outer wall opening, and the outer wall opening is closed , there will be no problem of ink mixing due to negligence in the manufacturing process, avoiding the problem of ink mixing in inkjet printing ink cartridges, and reducing the risk of defective products.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be The scope defined by the appended claims shall prevail.

Claims (20)

1. An ink cartridge, comprising: a body having a first chamber, a second chamber, a third chamber, a first outlet, a second outlet, a third outlet, an opening, and a flow channel, wherein the first chamber, the second chamber, and the third chamber are respectively used to accommodate ink, and it is characterized in that, the second chamber directly communicates with the second outlet in an overlapping manner, so that the ink in the second chamber directly flows to the second outlet, and the first The three chambers are directly connected to the third outlet in an overlapping manner, so that the ink in the third chamber directly flows to the third outlet, and the flow channel communicates the first chamber with the first outlet, so that the first chamber The ink in flows to the first outlet through the channel; and A sealing member, which is disposed in the flow channel through the opening, is used to seal the opening and prevent the ink flowing from the first chamber to the first outlet from flowing out of the opening. 2. The ink cartridge of claim 1, further comprising: An inkjet drive chip, which has a first hole, a second hole, and a third hole, and the inkjet drive chip uses the first hole, the second hole, and the third hole to connect with the first outlet and the second outlet respectively. , and any one of the third outlet is arranged on the body in a corresponding manner. 3. The ink cartridge according to claim 2, wherein the first hole is located between the second hole and the third hole, and the second hole and the second outlet overlap, and the third hole and the third outlet overlap. 4. The ink cartridge according to claim 3, further comprising a first partition for separating the first chamber and the second chamber, and the first hole, the second hole, and the third hole are arranged in a set in a straight line, and the straight line is substantially parallel to the first partition. 5. The ink cartridge of claim 2, wherein the third hole is located between the first hole and the second hole, the second hole overlaps the second outlet, and the third hole overlaps the third outlet. 6. The ink cartridge of claim 5, further comprising: a second partition to separate the second and third chambers; and The third partition is used to separate the first chamber and the second chamber. 7. The ink cartridge according to claim 6, wherein the first hole, the second hole, and the third hole are arranged in a straight line, and the straight line is substantially parallel to the second partition, and The first hole is closer to the third partition than the second hole. 8. The ink cartridge of claim 2, wherein the first aperture and the first chamber do not overlap each other. 9. The ink cartridge according to claim 1, wherein the first chamber and the third chamber are respectively located at two sides of the second chamber, and the second outlet and the third outlet are respectively located at two sides of the first outlet. 10. The ink cartridge of claim 1, wherein the first chamber and the first outlet do not overlap each other. 11. The ink cartridge of claim 1, wherein the first chamber, the second chamber, and the third chamber are adjacent to each other. 12. The ink cartridge of claim 11, wherein the second chamber and the third chamber are located on the same side of the first chamber. 13. The ink cartridge according to claim 1, wherein the sealing member and the body are made of the same material. 14. The ink cartridge according to claim 1, wherein a material hardness of a portion of the body adjacent to the opening is lower than a material hardness of other portions of the body. 15. The ink cartridge according to claim 1, wherein the first chamber, the second chamber, and the third chamber are formed in the body in a juxtaposed manner. 16. The ink cartridge of claim 1, wherein the sealing member comprises: a bottom disposed over the opening in a snug fit with the opening for sealing the opening; and The extension part extends in the flow channel in a manner corresponding to the shape of the flow channel, so that the ink from the first chamber flows smoothly in the flow channel. 17. The ink cartridge of claim 16, wherein the first chamber has a perforation, and the extension of the sealing member is adjacent to the perforation. 18. The ink cartridge of claim 1, wherein the first chamber, the second chamber, and the third chamber respectively have a first inlet, a second inlet, and a third inlet for For ink to flow in, and the above-mentioned ink box further includes an outer cover for sealing the first inlet, the second inlet, and the third inlet. 19. The ink cartridge of claim 1, further comprising: a fourth partition to separate the first and second chambers; and The fifth partition is used to separate the second chamber and the third chamber, wherein the fourth partition and the fifth partition are not parallel to each other. 20. An ink cartridge body structure having a plurality of compartments, comprising: An integrally formed body with a first chamber, a second chamber, a third chamber, a first outlet, a second outlet, a third outlet, an opening, and a flow channel, wherein the first chamber, the second The chamber and the third chamber are respectively used to accommodate ink, and it is characterized in that the second chamber directly communicates with the second outlet in an overlapping manner, so that the ink in the second chamber directly flows to the second outlet, while The third chamber directly communicates with the third outlet in an overlapping manner, so that the ink in the third chamber directly flows to the third outlet, and the flow channel communicates the first chamber with the first outlet, so that the first chamber The ink in the body flows to the first outlet through the flow channel, wherein the body and the flow channel are formed by a single component.

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