CN218430558U - Ink box - Google Patents

Abstract

The utility model discloses an ink box, which comprises a housin, protruding and chip, the casing is equipped with the storage ink cavity that is used for storing the ink, protruding setting is on the casing for with printing device join, make the ink horn keep in printing device, the chip record has ink horn information, is equipped with the chip mounting position on the upper surface, the chip mounting is on the chip mounting position, and on the ink horn installation direction, the upper surface is equipped with the anti-interference region that produces the interference when being used for preventing the ink horn installation in the front side of chip mounting position, protruding setting is at the rear side of chip mounting position. The utility model discloses the ink horn sets up and prevents interfering the region to there is not any structure in this region upwards outstanding, reduces the ink horn installation degree of difficulty, and the ink horn design is simple simultaneously, through chip and transmission information, protruding locking ink horn can, the simple structure of ink horn upper surface makes only with one set of general mould of preparation when making the ink horn, has reduced manufacturing cost.

Description

Ink box

Technical Field

The utility model relates to a printing apparatus technical field, especially an ink horn.

Background

An ink cartridge is a detachable part widely used in a printing apparatus for supplying consumables to the printing apparatus.

In prior patent No. CN202010894088.1, a liquid cartridge is disclosed, which comprises: a housing including first and second protrusions; and a circuit board including an electrode. The first protrusion is located rearward and the second protrusion is located forward with respect to the circuit board. An imaginary line passes through a first point on the first protrusion and a second point on the second protrusion. The distance between the leading edge of the electrode and the first point is less than the distance between the leading edge and the second point. The dimension between the front end and the rear end of the second projection is greater than the distance between the foremost end of the housing and the front end of the second projection.

However, since the second protrusion in this patent is used for identifying the type of the ink cartridge, reinforcing the structure and protecting the circuit board, the ink cartridge can be used without the second protrusion, and since the second protrusion is differently positioned in the width direction in the ink cartridge of different types, the ink cartridge of different types needs to be prepared with different molds, increasing the production cost.

Therefore, a solution to the above-mentioned problems is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems existing in the prior art, the present invention provides an ink cartridge to solve the above technical problems.

The utility model discloses a reach its purpose, the technical scheme of adoption as follows:

an ink cartridge detachably mountable to a printing apparatus with a length direction of the ink cartridge as an ink cartridge mounting direction, comprising:

a housing provided with an ink storage chamber for storing ink, and having an upper surface facing upward when the ink cartridge is mounted to the printing apparatus and a front surface facing forward when the ink cartridge is mounted to the printing apparatus, the upper surface being connected to the front surface;

a projection provided on the upper surface, the projection including a locking surface located rearward of the projection in a direction of mounting the ink cartridge for engagement with the printing apparatus to retain the ink cartridge in the printing apparatus; and

the chip is arranged on the upper surface and records the information of the ink box, and when the ink box is installed on the printing device, the chip can be electrically connected with the printing device;

be equipped with chip mounting position on the upper surface, chip mounting is on chip mounting position, and on ink horn installation direction, the upper surface is equipped with the anti-interference region that is used for preventing to produce the interference when the ink horn installation in the front side of chip mounting position.

The ink box with the structure has the advantages that the ink box is simple in design, the interference preventing area is arranged in front of the chip installation position on the upper surface of the ink box, no structure protrudes upwards on the area, the installation difficulty of the ink box is reduced, information is transmitted through the chip and the printing device, the ink box is locked through the protrusions, the structure of the upper surface of the ink box is simple, only one set of universal mold is used for manufacturing the ink box, the ink box can be formed, the manufacturing cost is reduced, and the cost performance of the ink box is increased.

Preferably, in some embodiments, the protrusion is higher than the chip on the upper surface, and the protrusion is disposed at a rear side of the chip mounting site. Thus, when the ink cartridge is mounted, the member of the printing apparatus that is engaged with the projection is less likely to collide with the chip when the member is engaged with the projection.

Preferably, in some embodiments, the interference prevention region comprises a rear interference prevention surface, a bottom interference prevention surface and a secondary bottom interference prevention surface, the interference prevention region being located in front of the rear interference prevention surface, the bottom interference prevention surface and the secondary bottom interference prevention surface being above the rear interference prevention surface. Therefore, when the ink box is installed on the printing device, the interference prevention area can prevent the interference generated when the ink box is installed, the installation difficulty is reduced, and the ink box is unlikely to contact with the printing device to damage the ink box.

Preferably, in some embodiments, the rear interference prevention surface is a front surface of the chip mounting site, the bottom interference prevention surface is a planar portion without protrusions, and the sub-bottom interference prevention surface is a beveled portion without protrusions; therefore, the bottom interference preventing surface and the secondary bottom interference preventing surface are free from protrusions, so that the ink box is unlikely to contact with a printing device when being installed, the ink box is damaged, and the cost is saved.

Preferably, in some embodiments, the printer further includes an ink outlet provided on the front surface, the ink outlet being located in front of the chip in an ink cartridge mounting direction, and the ink outlet being located below the bottom interference prevention surface in an upward direction when the ink cartridge is mounted to the printing apparatus. Therefore, after the ink outlet is installed in place, the chip can be electrically connected with the printing device, so that the ink outlet is prevented from being communicated with the non-printing device when the ink box is installed, and the printing device is connected with the chip to display the condition of installation in place.

Preferably, in some embodiments, the secondary bottom interference preventing surface is adjacent to the front surface, and the secondary bottom interference preventing surface is disposed in front of the ink outlet port in the cartridge mounting direction, the ink outlet port being located in front of the rear interference preventing surface. Therefore, when the ink box is installed, the ink box cannot collide with the printing device through the secondary bottom interference prevention surface, the ink outlet is not prone to being damaged by collision, and the ink outlet can be guided to be communicated with the printing device.

Preferably, in some embodiments, the upper surface further comprises a third upper surface, the protrusion is disposed on the third upper surface, and a height L1 of the protrusion at the third upper surface is smaller than a height L2 of a top surface of the protrusion to the bottom interference prevention surface. Whereby, on the upper surface, the third upper surface is higher than the bottom interference prevention surface.

Preferably, in some embodiments, the chip includes electrodes and a chip holder, and the circuit board is obliquely disposed on the chip holder, and the chip holder is detachably mounted on the chip mounting site so as to be mounted on the housing. Therefore, the chip can be conveniently mounted and dismounted on the ink box, and the circuit board is obliquely arranged and can be prevented from being damaged during mounting.

Preferably, in some embodiments, the chip mounting position further includes a shielding portion, the shielding portion is located on a front side of the chip holder in the mounting direction of the ink cartridge when the chip is mounted on the chip mounting position, a thickness of the shielding portion is greater than a length of the shielding portion, and the rear interference prevention surface is a front side surface of the shielding portion. Therefore, when the upper surface of the ink box is not provided with the protrusion on the front side of the chip, the rear interference prevention surface can also avoid damaging the chip during installation.

Preferably, in some embodiments, the ink cartridge further includes an air vent, the ink cartridge further has a side surface perpendicular to the front surface and the upper surface, the air vent is located on the side surface, and the air vent communicates with the ink storage chamber for communicating an inside of the ink cartridge with an atmosphere outside. Therefore, the air guide hole is formed in the side face, the inside of the ink box is communicated with the outside atmosphere, and the ink in the ink storage cavity can be smoothly guided out.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a perspective view of an ink cartridge of the present invention;

FIG. 2 is a cross-sectional view of the ink cartridge of the present invention;

fig. 3 is a perspective view of the middle housing of the present invention;

fig. 4 is a perspective view of the chip of the present invention.

In the figure: 1. a housing; 11. an ink storage cavity; 111. a curved channel; 12. a cover; 121. an engagement hole; 13. a base; 131. an engaging claw; 14. a chip mounting position; 141. a second snap structure; 142. a shielding portion; 143. a rear interference-free surface; 2. a chip; 21. a circuit board; 211. a substrate; 2111. mounting holes; 212. an electrode; 22. a chip rack; 221. mounting a column; 222. a first snap structure; 3. a protrusion; 31. a guide slope; 32. a locking surface; 4. an ink outlet; 5. an air vent; 6. a handle; 7. a first protrusion.

Detailed Description

For better understanding of the technical solutions of the present invention, the following detailed descriptions are provided with reference to the accompanying drawings.

It should be understood that the described embodiments are only some, and not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the overall structure of the ink cartridge of the present invention is schematically illustrated.

Referring to fig. 1 to 4, the present embodiment provides an ink cartridge for mounting a printing apparatus (e.g., a printer), wherein the printing apparatus (not shown) is provided with a mounting chamber, and the ink cartridge is detachably mounted in the mounting chamber. The ink cartridge stores consumables for development, such as: and (3) ink. When the printing device prints, the consumable in the cartridge may be displayed on a print medium (e.g., paper, or other print medium that may carry the consumable). One or more mounting cavities can be arranged on the printing device, one or more ink cartridges can be mounted, and one or more consumables can be provided for the ink cartridges. Generally, a printing device is provided with a plurality of installation cavities (for example, 3, 4, 5) arranged side by side, each installation cavity can be provided with an ink box, the plurality of ink boxes can be of the same color or different colors, the shape of the ink box can be matched with the shape of the installation cavity, so that the ink box can be installed on the installation cavity, the ink box is provided with an ink outlet 4, the installation cavity is provided with an ink supply unit, and when the ink box is installed on the installation cavity, the ink supply unit can be communicated with the ink outlet 4 of the ink box, so that the ink box can supply ink to the ink box. The structure of the printing apparatus is conventional and will not be described here.

In this embodiment, the ink cartridge includes a housing 1 and a chip 2 disposed on the housing 1, a protrusion 3 and an ink outlet 4, an ink storage chamber 11 for storing ink is disposed in the housing 1, the ink outlet 4 can communicate with the ink storage chamber 11 and a printing device, and is used for supplying ink to the printing device when being mounted in the mounting chamber, the chip 2 records information of the ink cartridge, such as information of ink volume of the ink cartridge, usage times of the ink cartridge, and the like, and the chip 2 can be electrically connected to the printing device when the ink cartridge is mounted in the printing device, and transmits the information of the chip 2 to the printing device, the printing device can determine the ink volume and color of the ink cartridge through the information of the chip 2, and the protrusion 3 is used for fixing the ink cartridge in the mounting chamber.

The casing 1 has a front surface a, a rear surface b, an upper surface c, a lower surface d, a left surface e and a right surface f, the front surface a of the casing 1 constitutes the installation direction side of the ink cartridge to the installation cavity, the front surface a faces forward when the ink cartridge is installed in the installation cavity, the rear surface b is opposite to the front surface a, the upper surface c faces upward when the ink cartridge is installed in the installation cavity, the upper surface c intersects the front surface a and the rear surface b, the lower surface d is opposite to the upper surface c, the left surface e and the right surface are perpendicular sides of the front surface a and the upper surface c, the left surface e intersects the front surface a, the rear surface b and the upper surface c, the right surface f is opposite to the left surface e, and the front surface a, the rear surface b, the upper surface c, the lower surface d, the left surface e and the right surface f are connected with each other to form the casing 1 into a structure of a substantially rectangular parallelepiped. To better explain the components of the ink cartridge, a three-dimensional rectangular coordinate system XYZ axis is established, two of the X axis, the Y axis and the Z axis are perpendicular to each other, the housing 1 is set in the vertical direction to the Z axis direction, i.e. the lower surface d points to the upper surface c direction and the c direction is the + Z direction, the horizontal direction is the X direction, i.e. the rear surface b points to the front surface a direction and the + X direction, which is also the mounting direction of the ink cartridge and the length direction of the ink cartridge, and the width of the housing 1 is the second direction Y, i.e. the left surface e points to the right surface f direction and the + Y direction.

In some embodiments, the chip 2 and the protrusion 3 are both disposed on the upper surface c, the chip 2 is mounted on the upper surface c by the chip mounting position 14, in the X direction, the protrusion 3 is disposed on the rear side of the chip mounting position 14, and the upper surface c is provided with an interference prevention area on the front side of the chip mounting position 14, so as to prevent the ink cartridge from interfering during mounting, reduce the difficulty of mounting, simplify the structure of the upper surface c of the ink cartridge, and form the ink cartridge by only manufacturing one set of general mold during manufacturing of the ink cartridge, thereby reducing the manufacturing cost and increasing the cost performance of the ink cartridge.

Further, the interference prevention region includes a bottom interference prevention surface and a sub-bottom interference prevention surface, the bottom interference prevention surface and the sub-bottom interference prevention surface being above the interference prevention surface.

Specifically, in the present embodiment, the upper surface c includes a first upper surface c1, a second upper surface c2, a third upper surface c3, and a chip mounting site 14, the chip 2 is mounted on the chip mounting site 14, and the first upper surface c1, the second upper surface c2, the chip mounting site 14, and the third upper surface c3 are arranged in this order in the cartridge mounting direction; the first upper surface c1 is a smooth slope portion without a projection and serves as a sub-bottom interference prevention surface of the interference prevention area, and is abutted against the front surface a of the ink cartridge, so that when the ink cartridge is mounted on the printing device, the upper surface c makes the ink cartridge less likely to contact the printing device through the sub-bottom interference prevention surface, and the ink cartridge is damaged; the second upper surface c2 is a smooth plane part without a protrusion and is used as a bottom interference prevention surface of the interference prevention area, the front end of the bottom interference prevention surface is connected with the first upper surface c1, and the rear end of the bottom interference prevention surface is connected with the chip mounting position 14; the third upper surface c3 is connected with the rear surface at the rearmost end of the upper surface c, and the third upper surface c3 is provided with the protrusion 3, so that the protrusion 3 is positioned at the rear side of the chip mounting position 14, and is positioned at the rear side of the chip 2, the upper surface c comprises the first upper surface c1, the second upper surface c2, the chip mounting position 14 and the third upper surface c3, the upper surface c is simpler than the upper surface c of the existing ink box structure by not providing the second protrusion 3 for identifying the type of the ink box, and the first upper surface c1 and the second upper surface c2 are arranged at the front side of the chip 2, so that the front side of the chip 2 is not provided with a shielding object, the structure is simpler, the production is more convenient, and the production cost can be saved.

In some embodiments, on the upper surface c, the protrusions 3 are higher than the chip 2. Specifically, in the present embodiment, the third upper surface is higher than the chip mounting position 14, and the dimension of the protrusion 3 in the Z direction is higher than the dimension of the chip 2 in the Z direction, so that the protrusion 3 is higher than the chip 2 on the upper surface c when the chip 2 is mounted on the ink cartridge, and the member that engages with the protrusion 3 in the printing apparatus is less likely to collide with the chip 2 disposed on the front side of the protrusion 3 when the member engages with the protrusion 3.

Preferably, in the present embodiment, when the protrusion 3 is disposed on the third upper surface c3, a height L1 of the protrusion 3 protruding from the third upper surface c3 is smaller than a height L2 of a top surface of the protrusion 3 to the bottom interference prevention surface, the bottom interference prevention surface is not higher than the bottom interference prevention surface, and a dimension of the bottom interference prevention surface is not larger than a dimension of the bottom interference prevention surface in the cartridge mounting direction, so that dimensions of the bottom interference prevention surface and the bottom interference prevention surface are reasonably designed, the bottom interference prevention surface has a sufficient length, and manufacturing is more convenient. Specifically, in the present embodiment, the bottom interference preventing surface is not higher than the third upper surface c3 in the Z direction, the top surface of the protrusion 3 is at a distance L1 from the third upper surface c3 in the Z direction, the top surface of the protrusion 3 is at a distance L2 from the bottom interference preventing surface in the Z direction, and the dimension of L2 is larger than the dimension of L1.

In some embodiments, the chip 2 includes a circuit board 21 and a chip holder 22, the circuit board 21 is disposed on the chip holder 22 in an inclined manner, the chip holder 22 is detachably mounted on the chip mounting site 14, and the circuit board 21 is mounted on the chip holder 22 in an inclined manner, so that the chip 2 is mounted on the housing 1.

Specifically, in this embodiment, the first latching structure 222 is disposed on the chip frame 22, the second latching structure 141 is disposed on the chip mounting location 14, and the chip frame 22 is detachably mounted on the chip mounting location 14 by the first latching structure 222 and the second latching structure 141, so as to facilitate the mounting and dismounting of the chip 2 on the ink cartridge. In some other embodiments, the chip frame 22 may be integrally formed with the upper surface c, or may be fixed on the upper surface c by gluing or welding, which is not limited herein.

The circuit board 21 comprises a substrate 211 and an electrode 212, the electrode 212 is fixed on the substrate 211 by gluing or welding, the substrate 211 and the electrode 212 form a circuit board 21 structure, so that the circuit board 21 can be used for recording information such as ink quantity of an ink cartridge, using times of the ink cartridge and the like, a mounting hole 2111 is arranged on the substrate 211, a mounting post 221 is arranged on the chip frame 22, the substrate 211 is nested on the mounting post 221 through the mounting hole 2111, so that the substrate 211 is mounted on the chip frame 22; in addition, the substrate 211 is disposed obliquely, that is, when the electrode 212 is mounted on the substrate 211, the electrode 212 on the substrate 211 is directed to the rear upper side of the cartridge mounting direction, so that the circuit board 21 is disposed obliquely on the chip holder 22, thereby preventing the circuit board 21 from being damaged when mounted. When the installation cavity of the printing device comprises a contact pin, and the ink box is installed in the installation cavity of the printing device, the circuit board 21 corresponds to the position of the contact pin, the electrode 212 on the circuit board 21 can be abutted against the contact pin, so that the circuit board 21 is electrically connected with the contact pin, and the printing device can receive the information of the ink box on the circuit board 21; in order to avoid the waste of resources, the circuit board 21 on the ink box can also be installed on the new ink box through dismantling and carry out reuse, the utility model discloses the ink box uses for dismantling circuit board 21 promptly.

In some embodiments, the interference prevention region further comprises a rear interference prevention surface 143, the bottom interference prevention region being located in front of the rear interference prevention surface 143, the rear interference prevention surface 143 being the front surface of the chip mounting site.

Further, the chip mounting position 14 further includes a shielding portion 142, and when the chip 2 is mounted on the chip mounting position 14, the shielding portion 142 is located on the front side of the chip holder 22 in the cartridge mounting direction, so that when the protrusion 3 is not provided on the front side of the chip 2 on the upper surface c of the cartridge, the chip 2 can be prevented from being damaged during mounting, and the front side surface of the shielding portion serves as a rear interference preventing surface 143.

Specifically, in the present embodiment, the chip mounting location 14 is a mounting groove provided on the upper surface c, and the front end of the mounting groove is provided with a shielding plate as the shielding portion 142, the front side surface of the shielding plate is used as the rear interference preventing surface 143, and the shielding plate is higher than the second upper surface c2 and the first upper surface c1 on the upper surface c, when the chip 2 is mounted on the chip mounting location 14, the chip 2 is located behind the rear interference preventing surface 143, and the shielding plate is flush with the front end of the chip rack 22 of the chip 2 in the Z direction, so that the ink cartridge will not collide with the chip rack 22 when mounted, the chip 2 will not loosen on the ink cartridge, the position of the ink cartridge will change, and the contact failure of the chip 2 will not be caused.

Further, the thickness of the shielding portion 142 is greater than the length of the shielding portion 142. Specifically, in the present embodiment, the dimension of the shielding plate in the X direction is smaller than the dimension of the shielding plate in the Y direction, so that the shielding plate is not excessively long on the upper surface c, which increases the production cost.

In some embodiments, the ink outlet 4 is provided on the front surface a, the ink outlet 4 being located in front of the rear interference prevention surface. Specifically, in the present embodiment, the front surface a packages a first front surface a1 and a second front surface a2, in the ink cartridge mounting direction, the first front surface a1 is located at the front side of the second front surface a2, the first front surface a1 is located above the second front surface a2 in the Z direction, the ink outlet 4 is arranged on the second front surface a2, so that the ink outlet 4 is located at the rear side of the first front surface a1, the ink outlet 4 is located on the second front surface a2 in the ink cartridge mounting direction, when the ink cartridge is mounted, the first front surface a1 of the ink cartridge contacts with the printing apparatus first, and then the ink outlet 4 contacts with the printing apparatus to communicate, thereby avoiding the damage of the ink outlet 4 caused by excessive force during the ink cartridge mounting; when the ink outlet 4 is installed on the second front surface a2, in the installation direction of the ink box, the ink outlet 4 is located in front of the rear anti-interference surface, the secondary bottom anti-interference surface is located in front of the ink outlet 4, the ink outlet 4 is located below the bottom anti-interference surface, the foremost end of the ink outlet 4 is flush with the foremost end of the bottom anti-interference surface, because in the installation direction of the ink box, the secondary bottom anti-interference surface connected with the bottom anti-interference surface is connected with the ink outlet 4 in the installation direction, so that the ink outlet 4 is easier to be guided to be communicated with the printing device when the ink box is installed.

When the ink box is installed in the installation cavity, the ink outlet 4 on the ink box is guided by the adaptation of the ink outlet 4 and the ink supply unit on the installation cavity, the ink outlet 4 of the ink box is connected with the ink supply needle on the ink supply unit on the installation cavity, the ink supply unit is communicated with the ink outlet 4, and the ink box can supply ink for the printing device.

Furthermore, in the installation direction of the ink box, the bottom interference prevention surface is positioned on the front side of the chip 2, when the foremost end of the ink outlet 4 is flush with the foremost end of the bottom interference prevention surface, the chip 2 is positioned on the rear side of the ink outlet 4, and after the ink outlet 4 is installed in place, the chip 2 is electrically connected with a printing device, so that when the ink box is installed, the ink outlet 4 is prevented from being communicated with the non-printing device, and the printing device is immediately connected with the chip 2 to display the installation in place condition.

In some embodiments, the mounting cavity is further provided with a locking portion (not shown), the protrusion 3 is provided with a locking surface 32 facing in a direction opposite to the mounting direction of the ink cartridge, i.e. in the mounting direction of the ink cartridge, the locking surface 32 is located behind the protrusion 3 for engagement with the printing device to hold the ink cartridge in the printing device, the locking portion locks the ink cartridge in the mounting cavity by abutting against the locking surface 32, and the locking between the protrusion 3 and the locking portion is stabilized by locking the protrusion 3 and the locking portion by the locking surface 32.

Specifically, in this embodiment, the protrusion 3 is a protrusion protruding toward the + Z direction on the upper surface c of the housing 1, the protrusion is provided as a guide slope 31 on one side facing the ink cartridge mounting direction, a locking surface 32 on one side facing away from the ink cartridge mounting direction, the locking portion is a cross bar provided in the mounting cavity along the Y direction, and when the ink cartridge is mounted in the mounting cavity, the cross bar can move along the guide slope 31, fall on the rear side of the protrusion 3 in the ink cartridge mounting direction, abut against the locking surface 32, lock the protrusion 3 with the cross bar, and fix the ink cartridge in the mounting cavity.

In some embodiments, an air vent 5 is further included, the air vent 5 is located on a side surface (left surface or right surface) of the housing 1, and the air vent 5 communicates with the ink storage chamber 11 for communicating the inside of the ink cartridge with the outside atmosphere.

Specifically, in the present embodiment, the air vent 5 is disposed on the right surface f of the housing 1, the housing 1 is provided with a curved passage 111 therein, the air vent 5 can communicate with the ink storage chamber 11 by being curved, so that the air outside the housing 1 can enter the ink storage chamber 11 by communicating with the outside air before storing ink, and the outside air can smoothly enter the ink storage chamber 11 due to the curved passage 111, so that the ink in the ink storage chamber 11 can smoothly flow out from the ink outlet 4.

In some embodiments, the housing 1 includes a cover 12 and a base 13, the cover 12 is detachably mounted on the base 13, and a top surface of the cover 12 constitutes an upper surface c of the housing 1. Specifically, in the present embodiment, the cover 12 is a cover 12-shaped structure having a downward opening (not shown), the top of the cover 12 has a first upper surface c1, a second upper surface c2, a chip mounting site 14, a third upper surface c3 and a protrusion 3, so that the top surface of the cover 12 constitutes the upper surface c of the housing 1, the base 13 is a structure for accommodating a can body, the interior of the base is provided with an ink storage chamber 11 for storing ink, the cover 12 is provided with an engagement hole 121, the base 13 is provided with an engagement claw 131 and an upper flange (not shown), the cover 12 is provided on the upper flange of the base 13, the upper flange is embedded in the opening of the cover 12, and the engagement claw 131 on the base 13 is clamped in the engagement hole 121, so that the cover 12 and the base 13 can be detached, and replacement and recycling of the cover 12 and the base 13 are facilitated, and the cost is saved.

In some embodiments, the ink cartridge further comprises a handle 6, and by arranging the handle 6, the ink cartridge can be pressed to move relative to the installation cavity in a vertical direction (Z direction), so that the locking surface 32 and the cross rod can move relative to each other in the vertical direction, the locking surface 32 is separated from or abutted against the cross rod, and the shell 1 is convenient to disassemble in the installation cavity. Specifically, in this embodiment, the approximately rectangular parallelepiped ink cartridge is provided with a handle 6 at the junction between the upper surface c and the rear surface b, the handle 6 can facilitate the operation of the ink cartridge by the user, and the housing 1 is further provided with a first protrusion 7 on the lower surface d, the first protrusion 7 is provided on the lower surface d near the front surface a, because the handle 6 is provided at the junction between the upper surface c and the rear surface b of the housing 1, the user rotates the handle 6 to lift the housing 1 in the + Z direction, so as to cause the housing 1 to pivot from the first posture to the second posture with the first protrusion 7 as a pivot, so that the protrusion 3 is lower than the locking portion in the Z direction, so that the protrusion 3 of the ink cartridge is disengaged from the locking portion in the mounting cavity to take out the ink cartridge, thereby facilitating the unlocking of the locking portion of the ink cartridge and taking out the mounting cavity; or, the ink cartridge is pushed to be installed in the installation cavity by pushing the handle 6, and the ink cartridge is lifted up in the + Z direction, so that the protrusion 3 can be lower than the locking part in the Z direction, when the housing 1 is pushed, the protrusion 3 can move to the front side of the locking part in the X direction, after the ink cartridge is installed in place, the handle 6 is released, the ink cartridge is pivoted from the second posture to the first posture, so that the protrusion 3 and the locking part can be partially overlapped in the Z direction, and the ink cartridge is locked by the locking part.

The utility model discloses ink horn, ink horn design is simple, sets up chip 2, handle 6 and protruding 3 on lid 12, through chip 2 and printing device transmission information, through protruding 3 locking ink horn, take out the ink horn through handle 6 can, make the simple structure of lid 12 for only with the one set of general mould of preparation when making the ink horn, can the shaping, and simple structure has reduced the manufacturing cost who makes lid 12, has increased the price/performance ratio of ink horn.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims (10)

1. An ink cartridge detachably mountable to a printing apparatus with a length direction of the ink cartridge as an ink cartridge mounting direction, comprising:

a housing provided with an ink storage chamber for storing ink, and having an upper surface facing upward when the ink cartridge is mounted to the printing apparatus and a front surface facing forward when the ink cartridge is mounted to the printing apparatus, the upper surface being connected to the front surface;

a projection provided on the housing for engaging with the printing device to hold the ink cartridge in the printing device; and

the chip records the ink box information;

be equipped with chip installation position on the upper surface, the chip is installed on the chip installation position, and on the ink horn installation direction, the upper surface is in the front side of chip installation position is equipped with and is used for preventing the interference region of preventing that produces the interference when the ink horn installation.

2. The ink cartridge as claimed in claim 1, wherein said projection is higher than said chip on said upper surface, said projection being provided on a rear side of said chip mounting position.

3. The ink cartridge as claimed in any of claims 1-2, wherein the interference prevention area includes a rear interference prevention surface, a bottom interference prevention surface, and a sub-bottom interference prevention surface, and the interference prevention area is located in front of the rear interference prevention surface, above the bottom interference prevention surface and the sub-bottom interference prevention surface.

4. The ink cartridge as claimed in claim 3, wherein said rear interference preventing surface is a front surface of said chip mounting site, said bottom interference preventing surface is a flat surface portion of said rear interference preventing surface without protrusions, and said sub-bottom interference preventing surface is a slope surface portion of said bottom interference preventing surface without protrusions in front thereof.

5. The ink cartridge according to claim 3, further comprising an ink outlet provided on said front surface, said ink outlet being located in front of said chip in said cartridge mounting direction, and being located below said bottom interference prevention surface in an upward direction when said ink cartridge is mounted to said printing apparatus.

6. The ink cartridge as claimed in claim 5, wherein said sub-bottom interference preventing surface is adjacent to said front surface, and is disposed in front of said ink outlet port in said cartridge mounting direction, said ink outlet port being located in front of said rear interference preventing surface.

7. The ink cartridge as claimed in claim 3, wherein said upper surface further comprises a third upper surface, said protrusion is provided on said third upper surface, and a height L1 of said protrusion from said upper surface is smaller than a height L2 of a top surface of said protrusion to said bottom interference prevention surface.

8. The ink cartridge as claimed in claim 4, wherein the chip includes electrodes and a chip holder, the circuit board is obliquely disposed on the chip holder, and the chip holder is detachably mounted on the chip mounting site so as to be mounted on the case.

9. The ink cartridge as claimed in claim 8, wherein the chip mounting portion further includes a shielding portion, the shielding portion is located on a front side of the chip holder in the cartridge mounting direction when the chip is mounted on the chip mounting portion, a thickness of the shielding portion is larger than a length of the shielding portion, and the rear interference preventing surface is a front side surface of the shielding portion.

10. The ink cartridge as claimed in claim 1, further comprising an air vent, said ink cartridge further having a side surface perpendicular to said front surface and said upper surface, said air vent being located on said side surface, and said air vent communicating with said ink storage chamber for communicating an inside of said ink cartridge with an outside atmosphere.

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