CN219256819U

CN219256819U - Ink cartridge

Info

Publication number: CN219256819U
Application number: CN202320168196.XU
Authority: CN
Inventors: 梁仕超; 夏敬章; 曾惠栋
Original assignee: Zhuhai Ninestar Management Co Ltd
Current assignee: Zhuhai Ninestar Management Co Ltd
Priority date: 2022-07-26
Filing date: 2023-01-18
Publication date: 2023-06-27
Anticipated expiration: 2033-01-18
Also published as: JP2024016843A; JP7490121B2; CN115871340A

Abstract

The utility model provides an ink box, and relates to the technical field of ink-jet printing. The ink cartridge detachably mounted to the mounting portion of the printer includes a front end portion located at a front end in a mounting direction, the front end portion being provided with a mounting groove at a crossing of an upper end face and the front end face; the limiting piece comprises a limiting arm, the side surface, close to the front end surface, of the limiting arm in the installation direction is a stop surface, and the limiting piece further comprises an extension part arranged on the stop surface; the projection of the extension part in the direction opposite to the mounting direction does not exceed the side edge of the corresponding cut-off surface, which is close to the mounting groove in the width direction of the ink cartridge. By introducing the extension part at the end part of the limiting arm of the limiting piece, the upward tilting of the stylus holder can be effectively restrained on the premise that the risk of interference between the limiting piece and the stylus holder in the width direction of the ink box is not increased in the ink box installation process, so that the chip and the stylus holder can be correctly jointed.

Description

Ink cartridge

Technical Field

The utility model relates to the technical field of ink-jet printing, in particular to an ink box.

Background

Printers are increasingly used in people's lives and works. Ink cartridges are also indispensable in life and work of people as one of consumables of printers.

In the related art, a high-capacity ink box adopting linear insertion type installation is arranged at the front end of the installation direction, a front end part matched with an installation part of a printer is arranged at the front end part in an inclined manner, a chip is arranged on the front end part in an inclined manner, a needle touching frame on the installation part of the printer is correspondingly arranged at the inclined manner, two limiting pieces are arranged above the front end part of the high-capacity ink box, each limiting piece comprises a limiting arm and a supporting arm, the supporting arms are connected with the limiting arms and the front end part, and the front ends of the limiting arms are positioned at the rear side of the front end part. The mounting part of the printer comprises a stylus frame, wherein the stylus frame is provided with two limited parts, and a stylus arranged on the stylus frame is abutted against the chip to complete the transmission work of electric signals between the ink box and the mounting part; the spacing arm and the front end part of the two spacing pieces enclose a space which is combined with the two limited parts, so that the contact pin frame can be limited in the height direction of the ink box, and the chip can be positioned at a better position, and can be more accurately abutted with the contact pin.

However, the stylus holder has a degree of freedom of movement in a plane perpendicular to the mounting direction of the ink cartridge, and in the process of bonding the stylus holder and the chip, the stylus holder is inclined as a whole due to the elastic action of the stylus, the limited portion is inclined upward toward one end of the ink cartridge, the upward inclination amplitude is gradually increased in the bonding process, and when the limiting piece and the limited portion act, the upward inclination end of the limited portion is easily abutted against the front end of the limiting arm, so that the chip and the stylus holder cannot be bonded correctly.

Disclosure of Invention

The utility model provides an ink box, which aims to solve the problems that a stylus frame has a movable degree of freedom in a plane perpendicular to the installation direction of the ink box, the whole stylus frame can incline due to the elastic action of a stylus in the joint process of the stylus frame and a chip, one end of a limited part facing ink can incline upwards, the ascending amplitude can be gradually increased in the joint process, and when a limiting piece acts on the limited part, one end of the limited part inclines upwards and is easily propped against the front end of a limiting arm, so that the chip and the stylus frame cannot be correctly jointed.

The utility model provides an ink box, which comprises a front end part positioned at the front end of the installation direction, wherein a chip is arranged on the front end part, the front end part comprises a front end surface arranged at the front end of the installation direction and an upper end surface intersected with the front end surface, the front end part is provided with an installation groove at the intersection of the upper end surface and the front end surface, the chip is positioned in the installation groove, the plane of the chip is intersected with the upper end surface and the front end surface, two limiting pieces are arranged on the upper end surface, the two limiting pieces are respectively positioned at two sides of the installation groove in the width direction of the ink box, and the width direction of the ink box is perpendicular to the installation direction and parallel to the upper end surface;

the limiting piece comprises a limiting arm, the limiting arm is positioned above the upper end face, the extending direction of the limiting arm is parallel to the mounting direction, the side face, close to the front end face, of the limiting arm in the mounting direction is a stop face, and the limiting piece further comprises an extension part arranged on the stop face; in the installation direction, one end of the extension part, which is close to the front end surface, is positioned behind the front end surface, and the projection of the extension part in the direction opposite to the installation direction does not exceed the corresponding side edge of the stop surface, which is close to the installation groove in the width direction of the ink box.

Optionally, the limiting part further comprises a supporting arm, the supporting arm is connected with the limiting arm and the upper end face, and the bottom surface of the extension part is flush with the bottom surface of the limiting arm.

Optionally, a projection of a side surface of the extension portion, which is close to the front end surface, in a direction opposite to the mounting direction is located in the corresponding cut-off surface;

and in the width direction of the ink box, the length of the extension part is smaller than that of the limiting arm.

Optionally, in the width direction of the ink cartridge, the extension portion is located at a side of the corresponding cut-off surface close to the mounting groove.

Optionally, the side surface of the extension portion, which is close to the mounting groove, is a transition surface, the side edge of the front end of the transition surface in the mounting direction is a front side edge, the side edge of the rear end of the transition surface in the mounting direction is a rear side edge, and in the width direction of the ink box, the distance between the two front side edges is greater than the distance between the two rear side edges.

Optionally, the rear side edge coincides with a side edge of the corresponding cut-off surface near the mounting groove.

Optionally, the transition surface is perpendicular to the upper end surface.

Optionally, the upper end surface is concave to set up the portion of dodging in the mounting groove is followed the both sides of width direction of ink horn, dodging the portion with the mounting groove is linked together.

Optionally, the end face of the avoiding portion in the height direction of the ink box is an avoiding face, the avoiding face is an inclined plane, the avoiding face intersects with the front end face, the side edge of the avoiding face away from the front end face is located above the side edge of the avoiding face close to the front end face, and the height direction of the ink box is perpendicular to the upper end face.

Optionally, the projection of the extension part in the height direction of the ink box is at least partially located on the avoidance surface, and the height direction of the ink box is perpendicular to the upper end surface.

According to the ink box, the outer extending part is introduced into the end part of the limiting arm of the limiting piece, so that the upward inclination of the stylus frame can be effectively restrained on the premise that the risk of interference between the limiting piece and the stylus frame in the width direction of the ink box is not increased in the ink box installation process, and the limiting piece can limit the stylus frame in the height direction of the ink box, so that the chip and the stylus frame can be correctly jointed.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

Fig. 1 is a partial construction diagram of a conventional mounting portion;

FIG. 2 is a schematic view of the structure of the stylus holder in FIG. 1;

fig. 3 is a block diagram illustrating a separated state of an ink cartridge and a tray according to an embodiment of the present utility model;

FIG. 4 is a schematic top view of the ink cartridge of FIG. 3;

fig. 5 is a first view structural diagram of the front end portion in fig. 4;

fig. 6 is a second view structural diagram of the front end portion in fig. 4;

fig. 7 is a partial configuration view of the front end portion in fig. 4.

Reference numerals illustrate:

50-mounting part; 51-an ink supply needle;

52-device side terminal portions; 52 t-a needle contacting frame;

52 g-restricted portion; 53-a positioning part;

54-locking part; 20-a tray;

20 a-a first side; 20 b-a second side;

20 c-a receiving bottom surface; 20 d-opening;

20 e-a first side; 20 f-a second side;

210-a receiving cavity; 21-a tray positioning portion;

100-ink cartridge; 110-front end;

111-front end face; 112-upper end face;

1121—an avoidance surface; 113-mounting slots;

114-an ink outlet; 120-chip;

130-a limiting piece; 131-a limiting arm;

1311—a cut-off surface; 132-a support arm;

133-an epitaxial portion; 133 a-transition surface;

133 b-front side; 133 c-rear side;

140-ink storage.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, either fixedly attached, detachably attached, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the above description, descriptions of the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

In the related art, the stylus holder has a degree of freedom of movement in a plane perpendicular to the installation direction of the ink box, during the process of jointing the stylus holder and the chip, the whole stylus holder can incline due to the elastic action of the stylus, one end of the limited part facing the ink box can incline upwards, the ascending amplitude can be gradually increased during the jointing process, when the limiting piece acts on the limited part, one end of the limited part inclining upwards easily props against the front end of the limiting arm, and the limiting piece can not limit the stylus holder in the height direction of the ink box, so that the chip and the stylus holder cannot be jointed correctly.

In order to solve the above problems, according to the ink cartridge provided by the embodiment of the utility model, the extension part is introduced into the end part of the limiting arm of the limiting piece, when the stylus holder is connected with the chip, one end of the limited part, which faces the ink cartridge, is positioned below the extension part, the extension part can effectively inhibit the stylus holder from tilting upwards, the limiting piece can limit the stylus holder in the height direction of the ink cartridge, so that the chip and the stylus holder can be correctly connected, and the projection of the extension part in the direction opposite to the installation direction does not exceed the corresponding side edge of the blocking surface, which is close to the installation groove, in the width direction of the ink cartridge, so that the extension part can not increase the risk of interference between the limiting piece and the stylus holder in the width direction of the ink cartridge in the installation process of the ink cartridge.

The ink cartridge provided by the embodiment of the utility model is described in detail below with reference to specific embodiments.

Fig. 1 is a partial construction diagram of a conventional mounting portion; FIG. 2 is a schematic view of the structure of the stylus holder in FIG. 1; fig. 3 is a block diagram illustrating a separated state of an ink cartridge and a tray according to an embodiment of the present utility model; fig. 4 is a schematic top view of the ink cartridge of fig. 3.

As shown in fig. 1 to 4, the embodiment of the present utility model provides an ink cartridge 100 detachably mounted to a mounting portion 50 of a printer, the ink cartridge 100 being mounted to the mounting portion 50 in a linear mounting direction. The ink cartridge 100 may be an ink bag type cartridge, or may be another type of large-capacity cartridge. The +y axis direction in fig. 1, 3, and 4 is the mounting direction.

The printer further includes a tray 20, and the ink cartridge 100 is mounted on the tray 20 to form a combination, which is mounted to the mounting portion 50 in the mounting direction.

As shown in fig. 1, the mounting portion 50 includes a frame, a device-side terminal portion 52, two positioning portions 53, an ink supply needle 51, and a locking portion 54. The device-side terminal portion 52 includes a stylus holder 52t, and a stylus provided on the stylus holder 52t is used to abut against the chip 120 of the ink cartridge 100. The stylus holder 52t has a degree of freedom of movement in a plane perpendicular to the mounting direction of the ink cartridge 100.

As shown in fig. 3, the tray 20 has a substantially rectangular parallelepiped shape with an opening, and the tray 20 has a first face 20a, a second face 20b, a receiving bottom face 20c, an opening 20d, a first side face 20e, and a second side face 20f. Three coordinate axes of an X axis, a Y axis and a Z axis are mutually perpendicular. The direction in which the opening 20d is directed to the accommodation bottom surface 20c is +z-axis direction, which is also vertical direction. The second surface 20b is directed in the +y-axis direction, which is also the mounting direction of the combination of the ink cartridge and the tray 20 to the mounting portion 50, toward the first surface 20 a. The direction in which the second side surface 20f points toward the first side surface 20e is the +x axis direction. The first surface 20a is a surface on the front end side in the mounting direction. The coordinate system of the mounting portion 50 coincides with the coordinate system of the tray 20 in a state where the tray 20 is mounted on the mounting portion 50.

The tray 20 further has a housing chamber 210, a fixing structure, and tray positioning portions 21, the housing chamber 210 is configured to house the ink cartridge 100, and two tray positioning portions 21 are provided on the first surface 20 a. When the tray 20 is mounted on the mounting portion 50, the tray positioning portion 21 is coupled with the positioning portion 53 to position the tray 20 at a substantially position in a direction perpendicular to the mounting direction, and the fixing structure is coupled with the locking portion 54 to prevent the tray 20 from being separated from the mounting portion 50.

As shown in fig. 3 and 4, the coordinate system of the ink cartridge 100 coincides with the coordinate system of the tray 20 in a state where the ink cartridge 100 is mounted to the tray 20. The ink cartridge 100 includes a front end portion 110 located at the front end in the mounting direction, a chip 120 is provided on the front end portion 110, the front end portion 110 includes a front end face 111 provided at the front end in the mounting direction, and an upper end face 112 intersecting the front end face 111, the front end portion 110 is provided with a mounting groove 113 at a position where the upper end face 112 intersects the front end face 111, the chip 120 is located in the mounting groove 113, a plane where the chip 120 is located intersects both the upper end face 112 and the front end face 111, two limiting pieces 130 are provided on the upper end face 112, and in the width direction of the ink cartridge 100, the two limiting pieces 130 are located on both sides of the mounting groove 113, respectively.

As shown in fig. 3, the front end portion 110 further includes an ink outlet 114 for coupling with the ink supply needle 51, and an ink storage portion 140 for storing ink.

The width direction of the ink cartridge 100 may be the extending direction of the X axis, the width direction of the ink cartridge 100 may be perpendicular to the mounting direction and parallel to the upper end surface 112, the height direction of the ink cartridge 100 may be the extending direction of the Z axis, and the length direction of the ink cartridge 100 may be the extending direction of the Y axis. The Y axis is parallel to the upper end face 112 and perpendicular to the front end face 111, and the x axis is parallel to both the upper end face 112 and the front end face 111.

Fig. 5 is a first view structural diagram of the front end portion in fig. 4; fig. 6 is a second view structural diagram of the front end portion in fig. 4; fig. 7 is a partial configuration view of the front end portion in fig. 4.

As shown in fig. 4, 5 and 6, the limiting member 130 includes a limiting arm 131, the limiting arm 131 is located above the upper end face 112, the extending direction of the limiting arm 131 is parallel to the mounting direction, and a side surface of the limiting arm 131, which is close to the front end face 111 in the mounting direction, is a stop surface 1311.

The stopper 130 further includes an extension 133 provided on the stop surface 1311; in the mounting direction, one end of the extension 133 near the front end face 111 is located rearward of the front end face 111, and a projection of the extension 133 in a direction opposite to the mounting direction does not exceed a side of the corresponding cut-off face 1311 near the mounting groove 113 in the width direction of the ink cartridge 100.

The limiting member 130 further includes a supporting arm 132, and the supporting arm 132 connects the limiting arm 131 with the upper end surface 112.

The bottom surface of the extension 133 may be flush with the bottom surface of the stopper arm 131. In other embodiments, the bottom surface of the extension 133 and the bottom surface of the stopper arm 131 may not be flush. The bottom surface of the extension 133 is a surface of the extension 133 facing the upper end surface 112; the bottom surface of the limiting arm 131 is a surface of the limiting arm 131 opposite to the upper end surface 112.

The tip 110 limits the height of the ink cartridge 100 of the stylus holder 52t by two stoppers 130. Specifically, as shown in fig. 2, each of the two sides of the stylus holder 52t is provided with a limited portion 52g, when the stylus holder 52t is engaged with the chip 120, one end of the limited portion 52g facing the ink cartridge 100 is located below the extension portion 133, that is, the limited portion 52g may enter the action range of the limiting member 130 at the initial stage of tilting up and be inserted into the gap between the extension portion 133 and the upper end surface 112, so that the extension portion 133 may effectively inhibit the stylus holder 52t from tilting up, and the limiting member 130 may limit the stylus holder 52t in the height direction of the ink cartridge 100, so that the chip 120 and the stylus holder 52t may be correctly engaged, and further the electrical connection stability between the chip 120 and the mounting portion 50 may be ensured. The initial tilt-up is the time period between contact of the stylus holder 52t with the chip 120, but no force between them, and contact of the stylus holder 52t with the chip 120, and a force between them.

When the restricted portion 52g is inserted between the extension 133 and the upper end surface 112, a gap may be provided between the restricted portion 52g and the extension 133.

By the projection of the extension 133 in the direction opposite to the mounting direction not exceeding the side of the corresponding cut-off surface 1311 near the mounting groove 113 in the width direction of the ink cartridge 100, it is possible to enable the extension 133 to increase the risk of interference between the stopper 130 and the stylus holder 52t in the width direction of the ink cartridge 100 during the mounting of the ink cartridge 100. Specifically, since the projection of the extension 133 in the direction opposite to the mounting direction (i.e., -Y direction) does not exceed the side of the corresponding cut-off surface 1311 near the mounting groove 113 in the width direction (i.e., + X direction) of the ink cartridge 100, the portion of the stylus holder 52t located between the two regulated portions 52g can be made to be away in the width direction of the ink cartridge 100, so that the risk of the front end portion 110 interfering with the stylus holder 52t in the X direction is not increased.

The two restricted portions 52g may have the same or different inclination in the height direction of the ink cartridge 100.

When the combination of the ink cartridge 100 and the tray 20 is mounted on the mounting portion 50, the locking portion 54 is combined with the fixing structure on the tray 20 to prevent the combination from being separated from the mounting portion 50; the tray positioning portion 21 is combined with the positioning portion 53 to position the assembly at a substantially position in a direction perpendicular to the mounting direction; the ink outlet 114 is combined with the ink supply needle 51, and can supply ink in the ink cartridge 100 to the mounting portion 50 and supply ink for printing; the contact pins provided on the contact pin holders 52t of the device-side terminal portion 52 are brought into contact with the chip 120, and the transmission of the electric signals between the ink cartridge 100 and the mounting portion 50 is completed; when the stylus holder 52t is engaged with the chip 120, the limited portion 52g is located below the extension portion toward one end of the ink cartridge 100, the extension portion 133 can effectively inhibit the stylus holder 52t from tilting upward, and the limiting member 130 can limit the stylus holder 52t in the height direction of the ink cartridge 100, so that the chip 120 and the stylus holder 52t can be correctly engaged.

Alternatively, the projection of the side surface of the extension 133, which is close to the front end surface 111, in the direction opposite to the mounting direction is located in the corresponding cut-off surface 1311, and the area size of the side surface of the extension 133 in the mounting direction of the ink cartridge 100 does not exceed the area size of the cut-off surface 1311; the length of the extension 133 is smaller than the length of the stopper arm 131 in the width direction of the ink cartridge 100, i.e., the extension 133 is narrower than the stopper arm 131, so that it is ensured that the projection of the extension 133 in the direction opposite to the mounting direction does not exceed the side edge of the corresponding cut-off surface 1311 near the mounting groove 113 in the width direction of the ink cartridge 100.

Wherein, in the width direction of the ink cartridge 100, the extension 133 is located on a side of the corresponding cut-off surface 1311 near the mounting groove 113.

Alternatively, as shown in fig. 5 to 7, the side surface of the extension portion 133 adjacent to the mounting groove 113 is a transition surface 133a, the side surface of the front end of the transition surface 133a in the mounting direction is a front side surface 133b, and the side surface of the rear end of the transition surface 133a in the mounting direction is a rear side surface 133c.

Wherein, in the width direction of the ink cartridge 100, the distance between the two front sides 133b of the two extension portions 133 is larger than the distance between the two rear sides 133c, so that the extending direction of the transition surface 133a is inclined with respect to the mounting direction of the ink cartridge 100, and it is ensured that the projection of the extension portions 133 in the direction opposite to the mounting direction does not exceed the side of the corresponding cut-off surface 1311 near the mounting groove 113 in the width direction of the ink cartridge 100. This arrangement facilitates the escape of the two extension portions 133 in the width direction of the ink cartridge 100 from the portion of the stylus holder 52t between the two regulated portions 52 g.

In an alternative embodiment, the rear side edge 133c may coincide with a corresponding side edge of the stop surface 1311 proximate the mounting slot 113.

Alternatively, the transition surface 133a may be perpendicular to the upper end surface 112. By this arrangement, the pitch in the width direction of the ink cartridge 100 of the points where the two transition surfaces 133a of the two extension portions 133 are identical in the mounting direction of the ink cartridge 100 can be made identical, which is advantageous in avoiding the portion of the stylus holder 52t between the two regulated portions 52g in the width direction of the ink cartridge 100.

Alternatively, as shown in fig. 5, the upper end surface 112 is provided with relief portions recessed on both sides of the mounting groove 113 in the width direction of the ink cartridge 100, the relief portions communicating with the mounting groove 113.

The escape portion may escape the restricted portion 52g that is inclined upward. The avoidance portion may be an avoidance groove. The end surface of the escape portion in the height direction of the ink cartridge is an escape surface 1121, and the escape surface 1121 is provided near the front end surface 111.

The relief surface 1121 may be an inclined surface, the relief surface 1121 intersects the front end surface 111, and a side edge of the relief surface 1121 on a side away from the front end surface 111 is located above a side edge of the relief surface 1121 on a side close to the front end surface 111. In this way, at the initial stage of the tilting of the restricted portion 52g, the restricted portion 52g is retracted by the retraction portion, so that the restricted portion 52g can be effectively prevented from tilting further.

The projection of the extension 133 in the height direction of the ink cartridge 100 is at least partially located on the relief surface 1121, and the height direction of the ink cartridge 100 is perpendicular to the upper end surface 112. By this arrangement, the avoiding portion can avoid the limited portion 52g at the initial stage of limiting the stylus holder 52t by the limiting member 130, so that the chip 120 and the stylus holder 52t can be correctly engaged.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. An ink cartridge detachably mountable to a mounting portion of a printer, the ink cartridge being mounted to the mounting portion in a linear mounting direction, characterized in that: the ink box comprises a front end part positioned at the front end of the installation direction, a chip is arranged on the front end part, the front end part comprises a front end face arranged at the front end of the installation direction and an upper end face intersected with the front end face, the front end part is provided with an installation groove at the intersection of the upper end face and the front end face, the chip is positioned in the installation groove, a plane where the chip is positioned is intersected with the upper end face and the front end face, two limiting pieces are arranged on the upper end face, the two limiting pieces are respectively positioned at two sides of the installation groove in the width direction of the ink box, and the width direction of the ink box is perpendicular to the installation direction and parallel to the upper end face;

2. The ink cartridge of claim 1, wherein the stopper further comprises a support arm connecting the stopper arm with the upper end surface, the bottom surface of the extension being flush with the bottom surface of the stopper arm.

3. The ink cartridge according to claim 1, wherein projections of sides of the extension portions near the front end face in directions opposite to the mounting directions are located in the corresponding cut-off faces;

4. A cartridge according to claim 3, wherein in a width direction of said cartridge, said extension portion is located on a side of the corresponding cut-off surface near said mounting groove.

5. The ink cartridge according to claim 1, wherein a side surface of the extension portion adjacent to the mounting groove is a transition surface, a side surface of the transition surface at a front end in the mounting direction is a front side surface, a side surface of the transition surface at a rear end in the mounting direction is a rear side surface, and a distance between two front side surfaces is larger than a distance between two rear side surfaces in a width direction of the ink cartridge.

6. The ink cartridge as in claim 5, wherein the rear side edge coincides with a side edge of the corresponding stop surface adjacent to the mounting slot.

7. The ink cartridge of claim 5, wherein the transition surface is perpendicular to the upper end surface.

8. The ink cartridge according to any one of claims 1 to 7, wherein the upper end surface is provided with a relief portion recessed on both sides of the mounting groove in a width direction of the ink cartridge, the relief portion being in communication with the mounting groove.

9. The ink cartridge according to claim 8, wherein an end face of the escape portion in a height direction of the ink cartridge is an escape face, the escape face is an inclined face, the escape face intersects the front end face, a side edge of the escape face on a side away from the front end face is located above a side edge of the escape face on a side close to the front end face, and the height direction of the ink cartridge is perpendicular to the upper end face.

10. The ink cartridge as in claim 9, wherein a projection of the extension in a height direction of the ink cartridge is at least partially on the relief surface.