CN201580052U

CN201580052U - Ink box

Info

Publication number: CN201580052U
Application number: CN200920194754XU
Authority: CN
Inventors: 何永刚; 侯亮; 李世强
Original assignee: Print Rite Unicorn Image Products Co Ltd
Current assignee: Print Rite Unicorn Image Products Co Ltd
Priority date: 2009-09-08
Filing date: 2009-09-08
Publication date: 2010-09-15
Anticipated expiration: 2019-09-08
Also published as: WO2011029378A1

Abstract

The utility model provides an ink box, which is detachably arranged in a print vehicle of an inkjet printer, wherein the ink box comprises a shell, a cavity which holds ink is enclosed by the shell, the bottom portion of the shell is provided with an ink supply port, the bottom portion of the cavity is provided with a conduct piece, one end of the conduct piece is arranged in the cavity, and the other end is arranged on the outer portion of the cavity. The ink box can avoid the phenomenon that a sealing piece is damaged to cause the ink to leak because the ink box is repeatedly mounted, and effectively prevents a detecting needle from bringing pollutants into the cavity and polluting the ink.

Description

Print cartridge

Technical field

The utility model relates to a kind of printing consumables, especially a kind of print cartridge that is releasably attached to ink-jet printer.

Background technology

Ink-jet printer is a kind of common printer, for modern office provides great convenience.Existing ink-jet printer has one mostly and prints the word car, prints in the word car to have one or more print cartridge installation cavitys, has a upwardly extending ink supply pin and a detection pin in each print cartridge installation cavity.Each print cartridge installation cavity all can be installed a print cartridge.

A kind of existing print cartridge structure as shown in Figure 1, print cartridge has a housing 11, housing 11 surrounds a cavity 12, accommodates ink in the cavity 12.Be provided with in the bottom of housing 11 and offer an ink supply port 13 and a through hole 14, the ink supply pin of printing on the word car 1 can pass ink supply port 13, and stretches in the cavity 12.In ink supply port 13, be provided with a seal 15, be used to seal ink supply port 13.Be contained in ink in the cavity 12 and flow out cavity 12 by ink supply pin 1 and provide, and be injected on the print media such as paper, form required pattern or literal to ink-jet printer.

The detection pin of printing on the word car 2 passes through hole 14, and through hole 14 belows are provided with seal 16, detects pin 2 puncture through seal parts 16 and passes through hole, and stretch in the cavity 12.After print cartridge was installed to and prints the word car, ink supply pin 1 passed ink supply port 13 and through hole 14 respectively with detecting pin 2, stretch in the cavity 12, and ink-jet printer provided the signal of telecommunication of specific voltage to ink supply pin 1 and detection pin 2.

When holding more ink in the cavity 12, ink supply pin 1 and detecting between the pin 2 because of there being the ink electric connection, ink-jet printer detects electric connection between ink supply pin 1 and the detection pin 2, promptly thinks to have enough inks in the print cartridge cavity 12.

Consumption along with ink in the cavity 12, when ink is lower than ink supply pin 1 or detects pin 2, there is not ink between ink supply pin 1 and the detection pin 2, ink-jet printer detects ink supply pin 1 and detects between the pin 2 and open circuit, then think ink surplus deficiencies in the cavity 12, to user's information that gives a warning, notify the user to change print cartridge.

In addition, the detection pin 2 of hollow can also be blown into air to cavity 12, to keep cavity 12 internal gas pressures and cavity 12 outer air pressure balances.

But, if print cartridge is installed repeatedly, detect more than 2 puncture through seal part 16 of pin, cause seal 16 to damage easily, cause ink from through hole 14, to spill.And installing repeatedly also of print cartridge can be brought in the cavity 12 remaining in the pollutant that detects pin 2 tops easily, causes inkiness, influences print quality.

In addition, housing 11 bottoms of print cartridge are provided with the chip mount pad 17 of an activity, and chip 18 is installed in the active mount 17.Chip 18 is installed in the movable chip mount pad 17, causes the electric contact and the electric contact loose contact of printing the word car of chip 18 easily, and then causes and can't print, and influences the operate as normal of ink-jet printer.

Summary of the invention

Main purpose of the present utility model provides a kind of print cartridge of avoiding ink from the through hole seepage;

Another purpose of the present utility model provides a kind of print quality print cartridge preferably.

For realizing above-mentioned main purpose, the print cartridge that the utility model provides is releasably attached in the printing word car of ink-jet printer, this print cartridge includes housing, housing surrounds a cavity that accommodates ink, housing bottom is provided with ink supply port, and wherein, cavity bottom is provided with electric-conductor, one end of electric-conductor is positioned at cavity, and the other end is positioned at outside the cavity.

By such scheme as seen, the bottom of print cartridge cavity is provided with electric-conductor, and electric-conductor can be electrically connected with the ink in the cavity, and extends to outside the cavity.After print cartridge was installed to and prints the word car, the ink supply pin passed ink supply port, was connected with ink in the cavity.Simultaneously, detect the pin electric-conductor outer with extending to cavity and contact, like this, when sufficient ink was arranged in the cavity, by electric-conductor and ink electric connection, ink-jet printer promptly detects had enough inks in the print cartridge between ink supply pin and the detection pin.Along with consumption of ink in the cavity, when not having ink between ink supply pin and the electric-conductor, ink-jet printer promptly detects the ink supply pin and detects between the pin and open circuit, and thinks ink surplus deficiency in the print cartridge, to user's information that gives a warning.

As seen, in the ink-jet printer test chamber during ink surplus, the detection pin does not need the puncture through seal part and stretches in the cavity, cause seal to damage when avoiding print cartridge to install repeatedly, prevent that ink seepage from through hole from going out, also can effectively avoid detecting pin pollutant is brought in the cavity, thus the print quality of assurance ink-jet printer.

A preferred scheme is, print cartridge also is provided with air guide mechanism, and this air guide mechanism has the gas passage that extends to the cavity bottom from the cavity top, and gas passage is communicated with cavity in the bottom.

This shows that along with the consumption of ink in the print cartridge cavity, the outer air of cavity can enter cavity bottom in the top from gas passage from print cartridge, replenishes air in cavity, to keep the outer air pressure balance of cavity internal gas pressure and cavity.

Description of drawings

Fig. 1 is the structural representation of existing print cartridge, and the ink supply pin inserts in the print cartridge with the detection pin among the figure;

Fig. 2 is the structure chart of the utility model embodiment;

The STRUCTURE DECOMPOSITION figure that Fig. 3 is dwindling of the utility model embodiment;

Fig. 4 is the cut-away view of the utility model embodiment, and the ink supply pin inserts in the print cartridge with the detection pin among the figure;

Fig. 5 is the partial structurtes exploded view at another visual angle of the utility model embodiment;

Fig. 6 is the enlarged drawing of the utility model embodiment housing;

Fig. 7 is the local and chip structure enlarged drawing of the utility model embodiment housing.

The utility model is described in further detail below in conjunction with drawings and Examples.

The specific embodiment

Referring to Fig. 2 and Fig. 3, have a housing 21 according to print cartridge of the present utility model, the top of housing 21 is provided with loam cake 51, and housing 21 surrounds a cavity 37 (Fig. 4 shows) with loam cake 51, accommodates ink in the cavity 37.Be provided with ink supply port 22 in housing 21 bottoms, be provided with the seal 23 that is used to seal ink supply port 22 in the ink supply port 22, preferably, seal 23 is made by elastomeric material, and is the self-closing seal.Seal 23 belows also are provided with diaphragm seal 24, and bottom end cover 41 is located at the bottom of housing 21.

The bottom of housing 21 also is provided with through hole 25 (Fig. 6 shows), is provided with seal 29 in the through hole 25.Be provided with electric-conductor 26 in cavity 37 bottoms, electric-conductor 26 is made of first electric conductor 27 and second electric conductor 28, wherein first electric conductor, 27 middle parts are passed seal 29 and are stretched in the cavity 37, and therefore first electric conductor 27 is fixed in the through hole 25, and the upper end is positioned at cavity 37.Second electric conductor 28 is positioned at the below of first electric conductor 27, and the lower end of first electric conductor 27 is electrically connected with second electric conductor 28.

Second electric-conductor 28 is provided with two through holes 35, and the diapire of housing 21 is provided with two projections 36 (Fig. 6 shows), and projection 36 can pass through hole 35.After print cartridge was installed, second electric-conductor 28 supported first electric-conductor 27 in the seal 29, and through hole 35 is sleeved on the projection 36, and the projection 36 made of plastics becomes flat after Overheating Treatment simultaneously, second electric-conductor 28 is fixed on the bottom of housing 21.Second electric conductor 28 also has two shell fragments 30 as the resilient clamp end, and shell fragment 30 can outwards open under external force.

Referring to Fig. 4, after print cartridge was installed to and prints the word car, the ink supply pin 1 puncture through seal part 23 in the printing word car also passed ink supply port 22 and stretches in the cavity 37, receives the ink in the cavity 37.Simultaneously, the detection pin of printing in the word car 2 contacts with second electric conductor 28, and by shell fragment 30 clampings.

When sufficient ink is arranged in the cavity 37, there is ink between the ink supply pin 1 and first electric conductor 27, pass through ink, first electric conductor 27, second electric conductor, 28 electric connections between ink supply pin 1 and the detection pin 2.Ink-jet printer is to ink supply pin 1 and when detecting pin 2 signal of telecommunication of certain voltage being provided, and ink supply pin 1 forms the galvanic circle with detecting between the pin 2, and ink-jet printer can be judged the ink that has abundance in the cavity 37.

If during ink cartridge low, do not have ink between ink supply pin 1 and first electric conductor 27 in the cavity 37, inkjet printing machine testing ink supply pin 1 opens circuit with detecting between the pin 2, and ink-jet printer judgement cavity 37 interior ink surplus deficiencies are promptly to user's information that gives a warning.

This shows, after print cartridge is installed to and prints the word car, detect not puncture through seal part 29 of pin 2,, detect pin 2 and also can not damage seal 29, avoid ink seepage from through hole 25 to go out even the user installs print cartridge repeatedly.Simultaneously, do not stretch in the cavity 37 owing to detect pin 2, pin 2 upper ends are residual a pollutant even detect, and also can not be brought in the cavity 37, avoids effectively ink is polluted.

Print cartridge of the present utility model also has air guide mechanism, and air guide mechanism has gas passage 31, and gas passage 31 extends to the bottom from the top of cavity 37.Referring to Fig. 5, above loam cake 51, be provided with air guide lid 61, offer crooked air flue 62 on the air guide lid 61.Offer air guide chamber 52 on the loam cake 51, sponge 54 is installed in the air guide chamber 52.Air guide chamber 52 be positioned at loam cake 51 under, and be provided with air flue 53, the gas outlet of air flue 53 be positioned at gas passage 31 directly over, like this, air guide chamber 52 is communicated with the top of gas passage 31 by air flue 53.

Like this, the air outside the cavity 37 enters air guide chamber 52 by the air flue 62 of air guide lid 61, enters gas passage 31 by air flue 53 again.

Referring to Fig. 6, the bottom of gas passage 31 is provided with gas outlet 32, and gas outlet 32 is used for gas outlet 32 sealings by diaphragm seal 34 (Fig. 3 shows) shutoff of pasting.32 both sides are respectively equipped with two intercommunicating pores 33 in the gas outlet, are used to be communicated with gas passage 31 and cavity 37.Like this, the air that enters gas passage 31 can enter cavity 37 by intercommunicating pore 33, to keep cavity 37 inside and outside air pressure balances.

Review Fig. 3, the bottom of housing 21 also is provided with a chip lock chamber 70, and chip 76 is fixedly mounted in the chip lock chamber 70.

The structure of chip lock chamber 70 as shown in Figure 7.Chip lock chamber 70 has an end wall 71, and be provided with two sidewalls 72 vertical with end wall 71, each sidewall 72 is equipped with the rib 73 that extends in the chip lock chamber, has gap 74 between rib 73 and the end wall 71, chip 76 is clamped between rib 73 and the end wall 71, realizes the fixed installation of chip 76 with this.

Because chip 76 is fixedly mounted on the bottom of housing 21, after print cartridge was installed to and prints the word car, chip 76 can not move with respect to housing, and the electric contact that helps chip 76 is connected with the electric contact of printing the word car.

Certainly, the foregoing description only is the preferable embodiment of the utility model, during practical application more variation can also be arranged, and for example, first electric conductor and second electric conductor can be one-body molded; Perhaps, electric-conductor is connected to form by three or more electric conductors; Or second the electric conductor bottom be provided with and be used for the spring that detects the pin butt etc., this can realize the purpose of this utility model equally.

It is emphasized that at last the utility model is not limited to above-mentioned embodiment, the variation small as the change of first electric conductor and the second electric conductor connected mode, the change of air guide mechanism etc. also should be included in the protection domain of the utility model claim.

Claims

1. print cartridge comprises

Housing, described housing surround a cavity that accommodates ink, and described housing bottom is provided with ink supply port;

It is characterized in that:

Described cavity bottom is provided with electric-conductor, and an end of described electric-conductor is positioned at described cavity, and the other end is positioned at outside the described cavity.

2. print cartridge according to claim 1 is characterized in that:

Described cavity bottom is provided with a through hole;

Described electric-conductor is made of first electric conductor and second electric conductor, and described first electric conductor middle part is fixed in the described through hole by a seal, and described first electric conductor, one end is positioned at described cavity, and the other end is connected with second electric conductor.

3. print cartridge according to claim 2 is characterized in that:

Described second electric conductor has a resilient clamp end.

4. according to each described print cartridge of claim 1 to 3, it is characterized in that:

Described print cartridge also is provided with air guide mechanism, and described air guide mechanism has the gas passage that extends to described cavity bottom from described cavity top, and described gas passage is communicated with described cavity in the bottom.

5. print cartridge according to claim 4 is characterized in that:

Described air guide mechanism also is provided with the air guide lid that is positioned at the case top lid top, and the below of described air guide lid is provided with the air guide chamber, and described air guide chamber is communicated with the top of described gas passage.

6. according to each described print cartridge of claim 1 to 3, it is characterized in that:

Described housing bottom is provided with a chip lock chamber, is installed with chip in the described chip lock chamber.

7. print cartridge according to claim 6 is characterized in that:

Described chip lock chamber has an end wall and two sidewalls, is equipped with the rib that extends to the chip lock chamber on described each sidewall.