CN208263742U - Print cartridge and printer - Google Patents

Abstract

The disclosure is directed to a kind of print cartridge and printers, the print cartridge includes the box body and lid for sealing against each other connection to be surrounded by ink storing chamber, the surge bunker being connected to the inner sealing of the ink storing chamber, and the micro channel being connected to is sealed with the air inlet of the surge bunker, wherein, the surge bunker is used to store the ink entered by the ink storing chamber in the surge bunker reflowablely under the internal and external pressure difference effect of the ink storing chamber.In this way, when printer during carrying run-off the straight or rolling when, when i.e. printer switches to other arbitrary inoperative positions by work position, ink will not flow in surge bunker outside, few a part in ink can be flowed into ink storing chamber, since ink storing chamber plays the role of temporarily storing ink at this time, therefore it is avoided that the ink in surge bunker from the air inlet leakage via micro channel.

Description

Print cartridge and printer

Technical field

This disclosure relates to printer technology field more particularly to a kind of print cartridge, and the printer including the print cartridge.

Background technique

In household even in field of ink jet printers, there is presently no the designs of perfect leakproof isobaric chamber.Work as printing In the case that machine is in relative quiescent, to the of less demanding of leakproof.It is transported to B point from A point after printer initialization, to leakproof Requirement it is very high.The mainstream vendor of current printer generally understands educating consumers and handles with care, but actual conditions are difficult to control, After service cost is high.

Ink outlet port be connected to the inkjet mouth of print head in the related technology a kind of, when printer works, in cartridge The consumption of the ink in portion, extraneous air fill into cartridge by air inlet, to keep the air pressure balance inside and outside cartridge, to guarantee Continuous ink feeding is carried out to print head.During stirring printer, air inlet may become the ink outlet port of ink supply water outflow, Ink flows to inside machine via the gas outlet, and complete machine is caused to fail.Directly big face is carried out additionally, due to gas outlet and air Product contacts, and the ink in cartridge is easy to nature and vapors away, and causes the waste of ink.

It is another in the related technology, unlike, air inlet is connected in micro channel via hose, compared to above-mentioned The problem of scheme solves the problems, such as volatilization, but ink leaks outside from air inlet cannot still solve, more seriously, once Ink enters in micro channel, is easy to kill dusting and block air inlet, and then influences the ink supply stability of print head.

Utility model content

To overcome the problems in correlation technique, the disclosure provides a kind of print cartridge, and the printer including the print cartridge.

To achieve the above object, a kind of print cartridge is provided, which includes the box for sealing against each other connection to be surrounded by ink storing chamber Body and lid, the surge bunker being connected to the inner sealing of the ink storing chamber, and be connected to the sealing of the air inlet of the surge bunker Micro channel, wherein the surge bunker be used for the ink storing chamber internal and external pressure difference effect under stored reflowablely by institute State the ink that ink storing chamber enters in the surge bunker.

The technical scheme provided by this disclosed embodiment can include the following benefits: when printer is in the process of carrying When middle run-off the straight or rolling, i.e., when printer switches to other arbitrary inoperative positions by work position or ink not The few a part that outer can be flowed in surge bunker or in ink can be flowed into ink storing chamber, be faced since ink storing chamber at this time plays When store ink effect, therefore be avoided that the ink in surge bunker from via micro channel air inlet leakage.And due to micro- The internal diameter of hole path is smaller, and ink has surface tension, or even in the case where printer is in and such as shakes violent extreme case, is stored in Ink in surge bunker will not flow to micro channel, to protect printer, furthermore ink be prevented to flow to micro channel In after because of dusting block inlet channel.In addition, surge bunker is connected to by micro channel with outside air, effectively delay interim It is stored in the evaporation rate of the ink in surge bunker, saves ink.

It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not The disclosure can be limited.

Detailed description of the invention

The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention Example, and be used to explain the principle of the present invention together with specification.

Fig. 1 is a kind of perspective view of the explosion of print cartridge shown according to an exemplary embodiment；

Fig. 2 is a kind of stereoscopic schematic diagram in one direction of box body shown according to an exemplary embodiment；

Fig. 3 be a kind of box body shown according to an exemplary embodiment partial structurtes and print head in one direction Stereoscopic schematic diagram；

Fig. 4 is a kind of stereoscopic schematic diagram along another direction of box body shown according to an exemplary embodiment；

Fig. 5 is the partial structurtes and printing of box body when printer shown according to an exemplary embodiment is in work position The schematic elevation view of head；

Fig. 6 is the top view of Fig. 5；

Fig. 7 be printer shown according to an exemplary embodiment be in the partial structurtes of inoperative position a period of time box body with The schematic elevation view of print head；

Fig. 8 be when printer shown according to an exemplary embodiment is in inoperative position two partial structurtes of box body with The schematic elevation view of print head；

Fig. 9 be when printer shown according to an exemplary embodiment is in inoperative position three partial structurtes of box body with The schematic elevation view of print head；

Figure 10 is the partial structurtes of box body when printer shown according to an exemplary embodiment is in inoperative position four With the schematic elevation view of print head；

Figure 11 is the partial structurtes of box body when printer shown according to an exemplary embodiment is in inoperative position five With the schematic elevation view of print head；

Figure 12 be when the printer shown according to another exemplary embodiment is in work position the partial structurtes of box body with The schematic elevation view of print head；

Figure 13 is the top view of Figure 12；

Figure 14 is the part knot that the printer shown according to another exemplary embodiment is in inoperative position a period of time box body The schematic elevation view of structure and print head；

Figure 15 is the part knot of box body when the printer shown according to another exemplary embodiment is in inoperative position two The schematic elevation view of structure and print head；

Figure 16 is the part knot of box body when the printer shown according to another exemplary embodiment is in inoperative position three The schematic elevation view of structure and print head；

Figure 17 is the part knot of box body when the printer shown according to another exemplary embodiment is in inoperative position four The schematic elevation view of structure and print head；

Figure 18 is the part knot of box body when the printer shown according to another exemplary embodiment is in inoperative position five The schematic elevation view of structure and print head.

Description of symbols

1 box body, 101 first ink storing chamber, 102 second ink storing chamber

The nozzle out of ink of 103 first aperture, 10 ink storing chamber 11

121 first pipeline section of 12L type bend pipe, 122 second pipeline section

13 step structure, 131 wall section, 132 changeover portion

133 bottom wall section, 2 lid, 20 surge bunker

201 second aperture, 21 first surge bunker, 22 second surge bunker

3 ventilation device, 301 first micro channel, 302 second micro channel

30 micro channel, 31 stub (tube), 311 inverted round stage section

312 straight pipe, 32 snorkel 321 first ventilation pipeline section

322 second ventilation 4 supporting support of pipeline section, 41 supporting ribs

42 arc positioning groove, 5 print head, 50 inkjet mouth

6 installation space, 7 sealing ring, 8 sealing strip

A liquid level

Specific embodiment

Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended The example of device and method being described in detail in claims, some aspects of the invention are consistent.

In the disclosure, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, bottom, top " is usually phase For state when printer is in normal use, that is, be usually for when printer is in work position , specifically, it is top towards the side above paper in Fig. 5 and Figure 12, is lower section towards the side below paper, It is top perpendicular to the outside side of paper in Fig. 6 and Figure 13, is lower section perpendicular to the side of paper inwards.The orientation used Word such as " inside and outside " typically refers to the inner and outer of corresponding component profile, in addition, in the disclosure, the noun used such as " air inlet, Gas outlet, nozzle out of ink " is usually for the flow direction of such as gas or liquid and other medium, and specifically, being located at should The oral area of the side of the upstream of the flow direction of medium is air inlet, the mouth positioned at the side in the downstream of the flow direction of the medium Portion is gas outlet or nozzle out of ink.

As shown in Fig. 1 to Figure 18, in an exemplary embodiment of the disclosure, a kind of print cartridge is provided, which includes phase It is mutually tightly connected to be surrounded by the box body 1 and lid 2 of ink storing chamber 10, the surge bunker 20 being connected to the inner sealing of ink storing chamber 10, And the micro channel 30 being connected to is sealed with the air inlet of surge bunker 20, wherein surge bunker 20 is used for inside and outside ink storing chamber 10 The ink entered in surge bunker 20 by ink storing chamber 10 is stored reflowablely under draught head effect.

In the disclosure, which can be the subtle pore structure that can arbitrarily delay the evaporation rate of ink, For example, the average pore size of the micro channel 30 can be between 0.5mm~1mm, and the micropore is logical in a kind of exemplary embodiment The ratio of the length in road 30 and the average pore size of the micro channel 30 can be between 50:1~100:1.In this way, not only micro channel 30 can efficiently control the evaporation rate of the ink in surge bunker 20, but also can occupy in printer to avoid micro channel The excessive space in portion, improves the structural compactness of printer.

In one embodiment, the micro channel as long as possible for the arrangement length in the limited space of printer 30, as depicted in figs. 1 and 2, which can be formed as extending to round far from the side close to the surge bunker 20 The serpentine channel of the other side from the ink storing chamber 10.In this way, the micropore can be improved in the micro channel 30 for being formed as serpentine channel The space utilization rate in channel 30, conducive to the overall dimensions for reducing printer.

In this way, when printer during carrying run-off the straight or rolling when, i.e., printer is switched to by work position When other arbitrary inoperative positions, can there be a following two kinds situation: situation one, in the logical of connection surge bunker 20 and ink storing chamber 10 When road is located at liquid level or more, the internal and external pressure difference of ink storing chamber is zero, and ink can not actively enter slow from self gravity is overcome It rushes in storehouse, i.e., ink will not flow in surge bunker outside at this time；Situation two is located in the channel of connection surge bunker 20 and ink storing chamber 10 It is zero when the internal and external pressure difference of ink storing chamber is initial when below liquid level, extremely least a portion of ink can understand oneself in the presence of its gravity Dynamic ground is flowed to the surge bunker of lower by eminence, and the air pressure in ink storing chamber 10 can become smaller at this time, and atmospheric pressure is remained as in surge bunker, I.e. the internal and external pressure difference of ink storing chamber can become larger with the increasing for discharge of ink, until the draught head acts on liquid level and produces Raw barrier force can contend with the gravity of ink when, the ink in the ink storing chamber 10 is no longer flow towards surge bunker.And work as printer When being in print state again, the consumption with the ink in ink storing chamber increases, and the air pressure in ink storing chamber can further become Small, the internal and external pressure difference of ink storing chamber can further increase, until the draught head act on liquid level and the thrust that generates can gram When taking the gravity of ink, the ink in the surge bunker will flow back into ink storing chamber again.Temporarily deposited since ink storing chamber plays The effect of ink storage water, therefore it is avoided that the ink in surge bunker from the air inlet leakage via micro channel.And since micropore is logical The internal diameter in road is smaller, and ink has surface tension, or even in the case where printer is in and such as shakes violent extreme case, is stored in buffering Ink in storehouse will not flow to micro channel, so that printer is protected, after furthermore ink being prevented to flow in micro channel Inlet channel is blocked because of dusting.In addition, surge bunker is connected to by micro channel with outside air, effectively delay temporarily to store The evaporation rate of ink in surge bunker, saves ink.

In the disclosure, surge bunker 20 can be connected with ink storing chamber 10 in several ways, such as in a kind of exemplary reality It applies in example, which can be connected to ink storing chamber and micro channel simultaneously via the gas-guiding structure that lid 2 is arranged is passed through.Example Such as, ink is provided and can be used as the surge bunker to the black bottle of ink storing chamber 10, gas-guiding structure can be formed as being connected to micro channel Hose, which can first pass through the lid 2 and bottle stopper seat then across the ink bottle and the top for extending to black bottle, and Bottle stopper seat of the hose respectively with lid 2 and black bottle is tightly connected, i.e., outside air is successively via the micro channel, hose, ink Bottle and 10 indirect communication of ink storing chamber.

In another illustrative embodiments that the disclosure provides, to simplify the structure of lid 2, and the height of box body is saved Spend direction on space, as shown in Figures 1 to 5, surge bunker 20 can via pass through box body 1 side wall ventilation device 3 and storage Cartridge 10 is connected to.That is, 2 structure of lid can be made more simple, subtracted by avoiding designing ventilation device 3 across lid 2 The weight bearing of few lid 2, improves the service life of print cartridge, is in addition also conducive to the space saved in print cartridge short transverse, is conducive to print cartridge Space layout.

When printer is in the situation such as Fig. 8 and inoperative position two shown in figure 15, to prevent in ink storing chamber 10 Ink flows into surge bunker 20, and guarantees that 10 air pressure inside of ink storing chamber is identical as external atmosphere pressure always, the outlet of ventilation device 3 Mouth can be located at the side of the separate surge bunker 20 of box body 1.That is, the side wall in face of surge bunker 20 when box body is placed towards ground When, the gas outlet of ventilation device 3 is due to arranging that in other words, the gas outlet of ventilation device 3 is in inoperative body far from the surge bunker 20 It is arranged when position two far from ground, so that the gas outlet of ventilation device 3 is higher than the liquid level A in ink storing chamber 10.

In the various exemplary embodiments that the disclosure provides, for the assembling convenient for ventilation device 3, and simplify ventilation knot The structure of structure 3, as shown in Fig. 1 to Figure 18, ventilation device 3 may include be formed on the side wall of box body 1 and with micro channel 30 The stomata of connection, the stub (tube) 31 for being set on the inner sidewall of box body 1 and being connected to stomata, and it is sheathed on going out for stub (tube) 31 Snorkel 32 on gas end, one end that snorkel 32 is directed away from ink storing chamber 10 extend.In this way, it is possible to avoid in box body The sealing structure of 1 side wall over-assemble such as sealing ring etc., to simplify the overall structure of ventilation device 3.

Wherein, which may be integrally formed on the inner sidewall of box body 1, also can be soldered to the inside of box body 1 On wall, belong among the protection scope of the disclosure.

For the reliable leakproofness convenient for guaranteeing snorkel 32 and stub (tube) 31, at the same be convenient for snorkel 32 and stub (tube) 31 it Between sealed connection, snorkel 32 can be for the hose knot as made of the flexible materials such as thermoplastic polyurethane elastomer rubber Structure, the stub (tube) 31 may include inverted round stage section 311, and the straight pipe between inverted round stage section 311 and the stomata of box body 1 312, the outer tube diameter of straight pipe 312 is greater than the interior caliber of hose construction, which is locked on for guiding hose structure On straight pipe 312.In this way, being guided by inverted round stage section 311, the interior lesser hose construction of caliber can rapidly be set in outer tube On the biggish straight pipe 312 of diameter, not only snorkel 32 is rapidly assembled on stub (tube) 31, embrace the snorkel just can Tightly on the periphery wall of stub (tube), to realize good sealing performance.

In the illustrative embodiments that the disclosure provides, for convenient for printer, when working position, snorkel 32 begins Be set to the top of liquid level eventually, to keep the air pressure balance inside and outside ink storing chamber, as shown in Fig. 2, snorkel 32 may include with The first ventilation pipeline section 321 that stub (tube) 31 is coaxially disposed, and extension is tilted upward from the gas outlet of the first ventilation pipeline section 321 Second ventilation pipeline section 322.That is, the tail portion of the snorkel 32 warpage upward, therefore, the case where stub (tube) 31 is in identical height Under, the gas outlet of the snorkel 32 is more easily kept in the top of liquid level.

Certainly, in other modes of texturing, the snorkel 32 or straight tube structure extending in a straight line.

For convenient for steadily supporting snorkel 32, as shown in Fig. 1 to Figure 18, the inside of box body 1, which is also provided with, to be used for Support the supporting support 4 of snorkel 32.Therefore, support snorkel 32 can be assisted by the supporting support 4, guarantees that printer exists Such as during shaking, snorkel 32 is firmly placed in always in box body 1, prevents from fractureing or because of snorkel 32 in snorkel 32 drop into liquid level or less under the effect of gravity and influence the aeration of the inside of print cartridge.

For convenient for more stably supporting the snorkel 32, as shown in Fig. 1 to Figure 18, supporting support 4 may include from box body 1 The supporting rib 41 that extends upward of bottom wall, and be formed in the arc positioning groove 42 of the upper end of supporting rib 41, arc positioning groove 42 match with the shape of the outer tube wall of snorkel 32, and snorkel 32 is embedded in arc positioning groove 42.Therefore, pass through branch The outer tube wall for supportting 42 clamping of arc positioning groove of muscle 41 snorkel 32, can more reliably guarantee that the connection of snorkel 32 is steady It is qualitative, it avoids printer from entering liquid level or less in the gas outlet for acutely shaking process Center Vent tube 32 and influences the ventilative of print cartridge Property.

In a kind of exemplary embodiment, which can be arranged close to the gas outlet end of snorkel 32, example Such as, which can support the second above-mentioned ventilation pipeline section 322, in this way, by steadily supporting going out for the snorkel 32 Port, to avoid its gas outlet from entering liquid level or less in the case where various extreme and influence the gas permeability of print cartridge.

In the various illustrative embodiments that the disclosure provides, the surge bunker 20 and micro channel 30 can be by box bodys 1 It is constructed with the other component other than lid 2, in order to simplify the overall structure of print cartridge, the assembling of Convenient ink box, extremely such as Fig. 1 Shown in Figure 18, box body 1 can be surrounded by the micro channel 30, surge bunker 20 and ink storing chamber 10 being sequentially connected to lid 2 jointly. That is, surge bunker 20 and micro channel 30 can also be constructed by box body 1 and lid 2, for example, being formed with phase on box body 1 Intercommunicated ink duct, dashpot and micropore groove blocks each slot structure by lid 2, to surround the micropore jointly Channel 30, surge bunker 20 and ink storing chamber 10.

In the various illustrative embodiments that the disclosure provides, box body 1 and lid 2 can use those skilled in the art Any appropriate sealed connection mode known to member, for example, being save the cost, box in a kind of illustrative embodiment Body 1 and lid 2 can be sealed the assembly interface of ink storing chamber 10 using the sealing structure of such as sealing ring 7, sealing strip.Separately Outside, when surrounding surge bunker 20 and micro channel 30 jointly by the box body 1 and lid 2, box body 1 and lid 2 can also be using such as The sealing structure of sealing strip 8, sealing ring etc. is jointly sealed the assembly interface of surge bunker 20 and micro channel 30.

In another illustrative embodiment, to guarantee that box body 1 and lid 2 have sufficiently reliable sealing performance, Box body 1 can be sealably coupled on lid 2 by using the method for such as laser seal welding.

In the disclosure, the volume of surge bunker 20 is bigger, on the one hand, the more easy more inks of interim storage, Jin Ergeng It is easy to that ink is avoided to enter micro channel, prevents ink from leaking outside, on the other hand, the overall space that print cartridge occupies becomes larger.It is simultaneous The ability of the occupied space of print cartridge and the interim storage ink of surge bunker 20 is cared for, the ratio between surge bunker 20 and the volume of ink storing chamber 10 can Think 1:10~1:1.That is, print cartridge the space occupied is relatively small when the volume of the two is in above-mentioned numberical range, and buffer The volume in storehouse 20 is also stored by ink storing chamber possibly into the quantity of ink to surge bunker 20 enough.

In the various illustrative embodiments that the disclosure provides, as depicted in figs. 1 and 2, which can be with Including being formed between box body 1 and lid 2 and in the horizontal plane along spaced first ink storing chamber 101 and second of first direction Ink storing chamber 102, surge bunker 20 include the first buffering being connected to respectively with the inside of the first ink storing chamber 101 and the second ink storing chamber 102 Storehouse 21 and the second surge bunker 22, micro channel 30 include being connected to respectively with the air inlet of the first surge bunker 21 and the second surge bunker 22 The first micro channel 301 and the second micro channel 302.That is, have two sets of ink storing chambers by box body 1 and 2 jointly constructs of lid, from And reduce the production cost of printer.

In a kind of illustrative embodiment that the disclosure provides, as depicted in figs. 1 and 2, it is formed with and is located on box body 1 Between first ink storing chamber 101 and the second ink storing chamber 102 and in the horizontal plane along the first aperture extended perpendicular to first direction 103, the second aperture 201 for connecting with the first aperture 103 and matching with the shape of the first aperture 103 is formed on lid 2. In this way, can when minim gap of the ink between box body 1 and the assembly interface of lid 2 climbs out of based on capillary principle Successively to be flowed out along the first aperture 103 and the second aperture 201, to avoid in the first ink storing chamber 101 and the second ink storing chamber 102 The mutual colour contamination of ink.

To combine the difficulty of processing technology and the ink storage ability of ink cartridge assemblies, the width of the first aperture 103 can be 0.5mm to 1.5mm, for convenience of fabricating, the second aperture 201 can be formed as the of same size of width and the first aperture 103 Slotted hole.

The disclosure can also provide a kind of printer, which can be used the print cartridges structure being above discussed in detail.

In the related art, such as in the print head using thermal ink jet technology, in printer in the mistake for overturning or carrying Cheng Zhong, the ink in print cartridge may automatically be flowed into the inkjet mouth of print head, to generate print head in inoperative position Ink leak phenomenon, not only influence printer print quality, and pollute printer.

To avoid print head that ink leak phenomenon occurs in inoperative position, the disclosure also provides a kind of printer, including print cartridge With print head 5, as shown in Fig. 1 to Figure 18, the inkjet mouth 50 of print head 5 is connected to via ink passage out with the ink storing chamber 10 of print cartridge, Pipeline out of ink includes the nozzle out of ink 11 being formed on the ink storing chamber 10, and the spray with nozzle 11 and print head 5 out of ink respectively The communicating pipe that black mouth 50 is connected, condition one: on any inoperative position of printer, the inkjet mouth 50 of print head 5 is located at The top of ink passage out, and/or, condition two: at least part of ink passage out is located above the liquid level A in ink storing chamber 10.

Wherein, " ink passage out " herein can also be any other suitable 50 He of inkjet mouth being connected in print head 5 All pipeline assemblies between ink storing chamber 10.

In addition, following three kinds of situations coexist in the inoperative position of printer: one, in a type of work of printer On position, when the inkjet mouth 50 of print head 5 is located at the top of pipeline out of ink, the part of pipeline out of ink is located at the liquid of ink storing chamber 10 The top of face A is based on law of connected vessels at this time, and the height of the ink in pipeline out of ink does not exceed liquid level A, therefore the ink is not It can flow at the inkjet mouth 50 of high-order print head 5；Two, on the another type of work position of printer, when beating When the inkjet mouth 50 of print head 5 is located at the lower section of pipeline out of ink, the part of pipeline out of ink is located at the top of the liquid level A of ink storing chamber 10, Ink can not automatically cross part of the pipeline out of ink higher than liquid level A and flow under the driving of not exterior power at this time At the inkjet mouth 50 of the print head 5 of low level；Three, out of ink when the inkjet mouth 50 of print head 5 is located at the top of pipeline out of ink The top of the liquid level A for being entirely located in ink storing chamber 10 of pipeline.Ink, can not be automatically under the driving of not exterior power at this time It flows, thus will not flow at the inkjet mouth 50 of print head 5 upward along the pipeline out of ink for being located at high-order.

Therefore, under any inoperative position when printer is carried or is overturn, as long as meeting in above two condition Any one, so that it may effectively preventing the ink in ink storing chamber flows to the print head of printer, to avoid the ink of outflow dirty It contaminates printer and influences the print quality of printer.

In a kind of illustrative embodiments that the disclosure provides, in order to which the self structure sufficiently by print cartridge is dexterously prevented Only ink leaks outside from print head, and as shown in Fig. 5 to Figure 11, which can be formed in the bottom of ink storing chamber 10, beat On any inoperative position of print machine, the inkjet mouth 50 of the print head 5 of printer can be located at the top of nozzle 11 out of ink, and/ Alternatively, nozzle 11 out of ink can be located above the liquid level A in ink storing chamber 10.In other words, the inoperative position of printer co-exists in Following three kinds of situations: one, on a type of work position of printer, the inkjet mouth 50 of print head 5 is located at nozzle out of ink 11 top, nozzle 11 out of ink are located at below the liquid level in ink storing chamber 10, and the part of communicating pipe is located at ullage at this time, is based on Law of connected vessels, the height of the ink in communicating pipe does not exceed liquid level A, therefore the ink will not be flow to positioned at high-order printing At first 5 inkjet mouth 50；Two, on the another type of work position of printer, the inkjet mouth 50 of print head 5 is located at out of ink The lower section of nozzle 11, nozzle 11 out of ink are located at the ullage in ink storing chamber 10, and the part of communicating pipe is located at ullage at this time, Since the ink in ink storing chamber 10 can not will not flow to the print head positioned at low level at high-order nozzle out of ink 11 At 5 inkjet mouth 50；Three, on the work position of the another seed type of printer, the inkjet mouth 50 of print head 5 is located at ink tube The top of mouth 11, nozzle 11 out of ink are located at the ullage in ink storing chamber 10, at this point, communicating pipe can all be located on liquid level Side, therefore the ink in ink storing chamber 10 at high-order nozzle out of ink 11 and can not be flow to positioned at high-order print head communicating pipe At 5 inkjet mouth 50.That is, not needed by other additional components, it is only necessary to close on any inoperative position of printer The relative positional relationship of the inkjet mouth of nozzle 11 and print head 5 out of ink is arranged on reason ground, so that meeting inkjet mouth 50 is located at ink tube Mouthfuls 11 top and nozzle out of ink 11 are located at any one condition of the ullage in ink storing chamber 10, which just can not be from beating The inkjet mouth outflow of head is printed, to avoid the inkiness printer of outflow and influence the print quality of printer, in addition, also The trend that pipeline out of ink can be simplified, without raising up for such as communicating pipe, it can realize the leakage of the inkjet mouth of print head Ink.

In a kind of illustrative embodiment, to guarantee in various inoperative positions, ink all cannot be from print head Nozzle outflow, as shown in Figure 5 and Figure 6, when printer is in work position, and nozzle out of ink 11 is located at the right back of box body 1 When, the inkjet mouth 50 of print head is located at the left front of box body 1, and the inkjet mouth 50 of print head 5 is located at the liquid in ink storing chamber 10 Above the A of face.

It should be noted that " forward and backward " and " left and right " that describes both here and below is to indicate to be in when printer A pair of of opposite direction when work position in the horizontal plane, is not limited to the disclosure, in the disclosure when printer is in When work position, in the horizontal plane, as long as nozzle out of ink 11 and inkjet mouth 50 are located at any pair of diagonally opposing corner position of box body 1 It sets, that is, look up from any one side in " front, rear, left, right " in the horizontal plane or be print head 5 Inkjet mouth 50 is located at the top of box body 1 or is the top that nozzle 11 out of ink is located at box body 1, and the liquid level of box body 1 is any non- It is the medium position or so positioned at box body 1 under work position, therefore nozzle out of ink 11 is located at the top of the liquid level A of box body 1.? To meet the print head not requirement of ink leak for being in any inoperative position.

That is, in the above-described embodiment, when printer is in work position, in the horizontal plane, definition is located at box body 1 Position where nozzle out of ink 11 is the right of box body 1 and the overlapping region at rear, thus, the inkjet mouth 50 of print head is located at box Body 1 with the overlapping region be in diagonally opposing corner relationship left front.That is, inkjet mouth 50 is located at the overlapping of the left and front of box body 1 Region.It is, the inkjet mouth 50 due to print head is located at one of the left and right side of horizontal plane inner box 1, ink tube Mouth 11 is located at the other of the left and right side of horizontal plane inner box 1, that is, inkjet mouth 50 and nozzle out of ink 11 are located at right and left To opposite sides, therefore, when the side wall of the inkjet mouth 50 of the close print head of upper cartridge body 1 in left and right directions is towards ground, Nozzle 11 out of ink is then located at the liquid level in ink storing chamber or more, therefore ink will not be leaked out from nozzle 11 out of ink；When in left and right directions When the side wall close to nozzle 11 out of ink of upper cartridge body 1 is towards ground, print head is then located at the top of box body 1, therefore ink will not It is leaked out from the inkjet mouth of print head.Based on similar principle, since the inkjet mouth 50 of print head is located at horizontal plane inner box 1 One of front side and rear side, nozzle 11 out of ink are located at the other of front side and rear side of horizontal plane inner box 1, and ink is not It can be flowed out from the inkjet mouth of print head.To sum up, printer is rotated in the horizontal plane when being in work position from printer to appoint After angle of anticipating, ink cannot leak outside from the inkjet mouth of print head.

In addition, that is, the inkjet mouth 50 of print head 5 is located in ink storing chamber 10 when printer is relative to working body bit inversion Below liquid level A, the nozzle out of ink 11 of print head 5 is located at liquid level or more at this time, and ink can not be flowed out from the inkjet mouth of print head.

The print head of the present embodiment and the leakproof principle of surge bunker are elaborated below with reference to Fig. 7 to Figure 11.

As shown in fig. 7, print head 5 is located at 1 top of box body in inoperative position one, ink cannot be flowed out from print head, And the internal and external pressure difference of ink storing chamber is zero, the ink in ink storing chamber can not also overcome self gravity and flow out to surge bunker.

As shown in figure 8, the nozzle out of ink 11 of ink storing chamber 10 is located above liquid level A, and ink cannot in inoperative position two Flowed out from print head, and snorkel 32 is located at the top of liquid level A, the ink during ink storing chamber is interior can not also overcome self gravity and into Enter into the gas outlet of snorkel 32, ink cannot be introduced into surge bunker.

As shown in figure 9, print head 5 is located at 1 lower section of box body, the nozzle out of ink 11 of ink storing chamber 10 in inoperative position three Above liquid level A, ink cannot be flowed out from print head, and snorkel 32 is located at the lower section of liquid level A, in ink storing chamber in few one Part ink is no longer flow in surge bunker under the action of external atmosphere pressure after flowing out to surge bunker.

As shown in Figure 10, in inoperative position four, print head 5 is located at 1 top of box body, the nozzle out of ink 11 of print head 5 Below liquid level A, ink cannot flow out from print head, and snorkel 32 is located at the top of liquid level A, the ink during ink storing chamber is interior Self gravity can not be overcome and entered in the gas outlet of snorkel 32, ink cannot be introduced into surge bunker.

As shown in figure 11, in inoperative position five, the nozzle out of ink 11 of print head 5 is located above liquid level A, and ink cannot It is flowed out from print head, snorkel 32 is located at the lower section of liquid level A, after few a part of ink during ink storing chamber is interior flows out to surge bunker It is no longer flow in surge bunker under the action of external atmosphere pressure.

For cannot be from nozzle 11 out of ink convenient for the ink in such as Fig. 8 and following inoperative position two illustrated in fig. 15 Outflow, and it is conducive to space layout simultaneously, the L-type being connected with the inside of ink storing chamber 10 can be set on the bottom wall of ink storing chamber 10 Bend pipe 12, L-type bend pipe 12 include the first pipeline section 121 vertically extended, and from the first pipeline section 121 underneath towards rear The second pipeline section 122 of Fang Yanshen, as nozzle 11 out of ink, the bottom wall of ink storing chamber 10 is formed as having for the free end of the second pipeline section 122 There is the step structure 13 of wall section 131, changeover portion 132 and bottom wall section 133, the first pipeline section 121 is formed in bottom wall section 133, and Wall section 131 and changeover portion 132 are located at the rear of the first pipeline section 121, wherein the outer surface of wall section 131 and changeover portion 132 is total With the installation space 6 being surrounded by for installing liquid level sensor.That is, before by the way that ink storing chamber 10 is arranged in the first pipeline section 121 Side, and the second pipeline section 122 is directed away from the extension of inkjet mouth 50 of print head 5, to be located at the first pipeline section 121 in ink storing chamber 10 Rear arrangement installation liquid level sensor installation space 6, to install liquid level sensor using as few as possible occupied space, The whole occupied space of print cartridge is reduced, and is guaranteed simultaneously when the side wall of the close print head of ink storing chamber 10 is arranged downward, it is out of ink Nozzle 11 is higher than liquid level A, so that ink cannot be flowed out from nozzle 11 out of ink.

In the printer provided in the disclosure, which can be used the above-mentioned print cartridges structure being discussed in detail.Therefore, exist In the various illustrative embodiments that the disclosure provides, for the space layout convenient for ink storing chamber, as shown in Fig. 1 to Figure 18, When printer is in work position, in the longitudinal direction, surge bunker 20 is between print head and ink storing chamber 10, and surge bunker 20 are located at the left of nozzle 11 out of ink.In this way, it is possible to the surge bunker 20 that is staggeredly arranged in ink storing chamber 10, nozzle out of ink 11, To avoid the snorkel being connected with surge bunker 20 32 from interferenceing with nozzle 11 out of ink, optimize space layout.

In another illustrative embodiments that the disclosure provides, in order to avoid the ink in ink storing chamber is from print head stream Out, as shown in Figure 12 to Figure 18, which can be formed in the bottom of ink storing chamber 10, in any inoperative of printer On position, condition one: the inkjet mouth 50 of print head 5 is located at the top of nozzle 11 out of ink, and/or, condition two: nozzle 11 out of ink Above the liquid level A in ink storing chamber 10, and/or, condition three: at least part of communicating pipe is located at the liquid level in ink storing chamber 10 Above A.

That is, analogously with above-mentioned analysis, following four kinds of situations have coexisted in the inoperative position of printer: one, printing On a type of work position of machine, when the inkjet mouth 50 of print head 5 is located at the top of nozzle 11 out of ink, nozzle 11 out of ink Below the liquid level A in ink storing chamber 10, the part of communicating pipe is located above the liquid level A in ink storing chamber 10, is based on law of connected vessels, The height of ink in communicating pipe does not exceed liquid level A, therefore the ink will not flow to the inkjet mouth positioned at high-order print head 5 At 50；Two, on the another type of work position of printer, the inkjet mouth 50 of print head 5 is located under nozzle 11 out of ink Side, nozzle 11 out of ink are located at the ullage in ink storing chamber 10, and the part of communicating pipe is located at ullage, due in ink storing chamber 10 Ink can not will not be flow at the inkjet mouth 50 of the print head 5 of low level at high-order nozzle out of ink 11； Three, on the work position of the another seed type of printer, the inkjet mouth 50 of print head 5 is located at the top of nozzle 11 out of ink, out Black nozzle 11 is located at the ullage in ink storing chamber 10, communicating pipe can all be located at ullage, therefore in ink storing chamber 10 Ink at high-order nozzle out of ink 11 and can not be flow at the inkjet mouth 50 of high-order print head 5 communicating pipe；Four, On the work position of the another seed type of printer, the inkjet mouth 50 of print head 5 is located at the lower section of nozzle 11 out of ink, ink tube Mouth 11 is located at below the liquid level in ink storing chamber 10, and the part of communicating pipe can be located at ullage, that is, be needed at this time by connection Pipe raises up to liquid level A is exceeded, and therefore, ink can not be crossed automatically and be higher than the communicating pipe under the driving of not exterior power The part of liquid level A and flow at the inkjet mouth 50 of the print head 5 of low level.

That is, on any inoperative position of printer, it is only necessary to reasonably arrange the spray of nozzle 11 and print head 5 out of ink The relative positional relationship of black mouth, so that meeting three kinds of above-mentioned condition any one condition, which just can not be from print head Inkjet mouth outflow, to avoid the inkiness printer of outflow and influence the print quality of printer.

In a kind of illustrative embodiment, as shown in Figure 12 to Figure 18, when printer is in work position, and it is out of ink When nozzle 11 is located at the right back of box body 1, the inkjet mouth 50 of print head is located at the right front of box body 1, and the ink-jet of print head 5 Mouth 50 is located above the liquid level A in ink storing chamber 10.

The print head of the present embodiment and the leakproof principle of surge bunker are elaborated below in conjunction with Figure 14 to Figure 18.

As shown in figure 14, in inoperative position one, print head 5 is located at 1 top of box body, and ink cannot be from print head stream Out, and the internal and external pressure difference of ink storing chamber is zero, and the ink in ink storing chamber can not also overcome self gravity and flow out to surge bunker.

As shown in figure 15, in inoperative position two, the nozzle out of ink 11 of ink storing chamber 10 is located above liquid level A, and ink is not Can be flowed out from print head, and snorkel 32 is located at the top of liquid level A, in ink storing chamber in ink can not also overcome self gravity and It enters in the gas outlet of snorkel 32, ink cannot be introduced into surge bunker.

As shown in figure 16, in inoperative position three, print head 5 is located at 1 top of box body, the nozzle out of ink 11 of ink storing chamber 10 Above liquid level A, ink cannot be flowed out from print head, and snorkel 32 is located at the lower section of liquid level A, in ink storing chamber in few one Part ink is no longer flow in surge bunker under the action of external atmosphere pressure after flowing out to surge bunker.

As shown in figure 17, in inoperative position four, print head 5 is located at 1 lower section of box body, the nozzle out of ink 11 of print head 5 Below liquid level A, by the communicating pipe that raises up, so that the part of communicating pipe is higher than liquid level A, therefore ink cannot be from print head stream Out, snorkel 32 is located at the top of liquid level A, in ink storing chamber in ink can not also overcome self gravity and enter snorkel 32 Gas outlet in, ink cannot be introduced into surge bunker.

As shown in figure 18, in inoperative position five, the nozzle out of ink 11 of print head 5 is located above liquid level A, and ink cannot It is flowed out from print head, snorkel 32 is located at the lower section of liquid level A, after few a part of ink during ink storing chamber is interior flows out to surge bunker It is no longer flow in surge bunker under the action of external atmosphere pressure.

Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to of the invention its Its embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or Person's adaptive change follows general principle of the invention and including the undocumented common knowledge in the art of the disclosure Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following Claim is pointed out.

It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.

Claims (16)

1. a kind of print cartridge, which is characterized in that including sealing against each other connection to be surrounded by the box body (1) and lid of ink storing chamber (10) (2), the surge bunker (20) being connected to the inner sealing of the ink storing chamber (10), and it is close with the air inlet of the surge bunker (20) Seal the micro channel (30) of connection, wherein the surge bunker (20) is used to act in the internal and external pressure difference of the ink storing chamber (10) Under store the ink entered in the surge bunker (20) by the ink storing chamber (10) reflowablely.

2. print cartridge according to claim 1, which is characterized in that the surge bunker (20) is via across the box body (1) The ventilation device (3) of side wall is connected to the ink storing chamber (10), and the gas outlet of the ventilation device (3) is located at the box body (1) the side far from the surge bunker (20).

3. print cartridge according to claim 2, which is characterized in that the ventilation device (3) includes being formed in the box body (1) Side wall on and the stomata that is connected to the micro channel (30), be set on the inner sidewall of the box body (1) and with the gas The stub (tube) (31) of hole connection, and the snorkel (32) being sheathed on the outlet end of the stub (tube) (31), the ventilation One end that pipe (32) is directed away from the ink storing chamber (10) extends.

4. print cartridge according to claim 3, which is characterized in that the snorkel (32) includes same with the stub (tube) (31) First ventilation pipeline section (321) of axis setting, and the of extension is tilted upward from the gas outlet of first ventilation pipeline section (321) Two snorkel sections (322).

5. print cartridge according to claim 3, which is characterized in that the inside of the box body (1), which is additionally provided with, is used to support institute State the supporting support (4) of snorkel (32).

6. print cartridge according to claim 5, which is characterized in that the supporting support (4) includes from the bottom of the box body (1) The supporting rib (41) that wall extends upward, and it is formed in the arc positioning groove (42) of the upper end of the supporting rib (41), it is described Arc positioning groove (42) and the shape of the outer tube wall of the snorkel (32) match, and the snorkel (32) is embedded at institute It states in arc positioning groove (42).

7. print cartridge according to claim 3, which is characterized in that the snorkel (32) is the hose made of flexible material Structure, the stub (tube) (31) include inverted round stage section (311), and are located at the inverted round stage section (311) and the box body (1) Straight pipe (312) between the stomata, the outer tube diameter of the straight pipe (312) are greater than the interior caliber of the hose construction, institute Inverted round stage section (311) are stated for guiding the hose construction to be locked on the straight pipe (312).

8. print cartridge according to claim 1, which is characterized in that the box body (1) and the lid (2) are surrounded by suitable jointly The micro channel (30), the surge bunker (20) and the ink storing chamber (10) of secondary connection.

9. print cartridge according to claim 1, which is characterized in that the volume of the surge bunker (20) and the ink storing chamber (10) The ratio between be 1:10~1:1.

10. print cartridge according to claim 1, which is characterized in that the average pore size of the micro channel (30) is between 0.5mm ~1mm, and the ratio of the average pore size of the length of the micro channel (30) and the micro channel (30) between 50:1~ 100:1。

11. print cartridge according to claim 1, which is characterized in that the micro channel (30) is formed as from close to described slow The side for rushing storehouse (20) extends to the serpentine channel far from the ink storing chamber (10) side round.

12. print cartridge according to claim 1, which is characterized in that the box body (1) is sealed and welded on the lid (2), Alternatively, the box body (1) is sealably coupled on the lid (2) by sealing ring (7).

13. print cartridge according to any one of claim 1 to 12, which is characterized in that the ink storing chamber (10) includes being formed Between the box body (1) and the lid (2) and in the horizontal plane along spaced first ink storing chamber (101) of first direction With the second ink storing chamber (102), the surge bunker (20) include respectively with first ink storing chamber (101) and second ink storing chamber (102) inside connection the first surge bunker (21) and the second surge bunker (22), the micro channel (30) including respectively with institute State the first micro channel (301) and the second micropore that the first surge bunker (21) is connected to the air inlet of second surge bunker (22) Channel (302).

14. print cartridge according to claim 13, which is characterized in that be formed on the box body (1) positioned at first storage Between cartridge (101) and second ink storing chamber (102) and in the horizontal plane along first extended perpendicular to the first direction Aperture (103), be formed on the lid (2) connect with first aperture (103) and with first aperture (103) The second aperture (201) that shape matches.

15. print cartridge according to claim 14, which is characterized in that the width of first aperture (103) be 0.5mm extremely 1.5mm, second aperture (201) are formed as the slotted hole of same size of width Yu first aperture (103).

16. a kind of printer, which is characterized in that the printer includes according to claim 1 to ink described in any one of 15 Box.