CN219523398U - Ink box - Google Patents

Abstract

The utility model discloses an ink box, which is installed in an installation cavity of a printer along an insertion direction in an upright posture, comprising: a case having a front surface facing the insertion direction, a rear surface facing a direction opposite to the insertion direction and opposite to the front surface, and a bottom surface facing the gravitational direction, the case having a top surface disposed opposite to the bottom surface; the rear surface comprises a continuous face; the chip is arranged on the top surface and close to the front surface; the light shielding part is arranged on the top surface and is at least partially positioned above the chip in the gravity direction. The chip of the ink box is arranged close to the front surface, the impact on the chip can be reduced as far as possible when the rear surface receives the impact, and the light shielding part is at least partially positioned above the chip, so that the chip can be prevented from being directly impacted when the top surface of the ink box receives the impact, and the possibility of damaging the chip is reduced.

Description

Ink box

Technical Field

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

Background

The rear surface of the ink cartridge in the prior art generally adopts a combination of two planes, as shown in fig. 1, the rear surface comprises a first surface 01 and a second surface 02, a protrusion 03 is formed at the intersection position of the first surface 01 and the second surface 02, and if the ink cartridge falls from a high position, when the protrusion 03 collides with the ground, the outer shell of the ink cartridge is easily broken due to concentrated stress at the protrusion 03, so that the use of a user is affected.

Disclosure of Invention

According to one aspect of the present utility model, an ink cartridge is mounted in an upright posture in a mounting chamber of a printer in an insertion direction, comprising:

a case having a front surface facing an insertion direction, a rear surface facing a direction opposite to the insertion direction and opposite to the front surface, and a bottom surface facing a gravitational direction, the case having a top surface disposed opposite to the top surface; the rear surface includes a continuous face;

a chip disposed on the top surface, the chip disposed proximate the front surface;

and the light shielding part is arranged on the top surface and is at least partially positioned above the chip in the gravity direction.

In some embodiments, the light shielding portion is located in front of the rear surface in the insertion direction and is disposed close to the chip.

In some embodiments, the rear surface is a curved surface.

In some embodiments, the greater the curvature of the rear surface, the less the length of the bottom surface in the insertion direction.

In some embodiments, the rear surface forms a continuous arcuate surface with the bottom surface.

In some embodiments, the rear surface is a bevel that is inclined relative to the insertion direction.

In some embodiments, the rear surface forms an obtuse angle with the insertion direction.

In some embodiments, the rear surface is a plane perpendicular to the insertion direction.

In some embodiments, the portion of the rear surface proximate the bottom surface is a soft material portion.

In some embodiments, the soft material portion deforms inwardly when subjected to an external force.

In some embodiments, the cartridge has a top surface disposed opposite the bottom surface with a locking portion disposed thereon with the mounting cavity Xiang Kage, the locking portion disposed proximate the rear surface.

The utility model has the beneficial effects that: the rear surface of the ink box is a continuous surface, no protrusion exists on the rear surface, and the stress on the rear surface is more uniform when the ink box falls down and lands on the rear surface, so that the probability of damage of the ink box under the condition that the ink box falls down from a high place and lands on the rear surface is reduced. In addition, the chip is close to the front surface setting, and the shading portion is close to the chip setting, can make the chip and the impact that shading portion received reduce as far as possible when the ink horn drops the rear surface and receives the impact to shading portion is located the chip top at least partially, can avoid the chip directly to receive the impact when the ink horn top surface receives the impact, reduces the impaired possibility of chip.

Drawings

FIG. 1 is a side view of a prior art ink cartridge;

FIG. 2 is a schematic view of an ink cartridge according to an embodiment of the present utility model;

FIG. 3 is a schematic view of an ink cartridge according to another embodiment of the present utility model;

FIG. 4 is a side view of an ink cartridge according to a first embodiment of the present utility model;

FIG. 5 is a side view of an ink cartridge according to a second embodiment of the present utility model;

FIG. 6 is a side view of an ink cartridge according to a third embodiment of the present utility model;

FIG. 7 is a side view of an ink cartridge according to a fourth embodiment of the present utility model;

FIG. 8 is a side view of an ink cartridge according to a fifth embodiment of the present utility model;

FIG. 9 is a side view of an ink cartridge according to a sixth embodiment of the present utility model;

FIG. 10 is a side view of an ink cartridge according to a seventh embodiment of the present utility model;

fig. 11 is a side view of an ink cartridge according to an eighth embodiment of the present utility model.

Detailed Description

The present utility model will now be described in further detail with reference to the accompanying drawings, wherein the embodiments described are some, but not all embodiments of the 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 the like 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.

As shown in fig. 2 and 3, the present embodiment provides an ink cartridge for supplying ink to a printer (not shown), the printer being provided with a mounting chamber (not shown) into which the ink cartridge is detachably mounted, consumable materials (e.g., ink) for development being stored inside the ink cartridge, and the consumable materials inside the ink cartridge being developed on a printing medium (e.g., paper) when the printer prints. One or more ink cartridges can be accommodated in the mounting cavity, the ink cartridges are arranged in the mounting cavity side by side, and the ink cartridges can be of the same color or different colors.

As shown in fig. 2 and 3, the ink cartridge includes a cartridge body 1, a chip 2 provided on the cartridge body 1, a light shielding portion 3, a liquid detecting portion 4, a locking portion 5, and an ink outlet 6. The ink storage cavity for containing ink is arranged in the box body 1, the ink outlet 6 is communicated with the ink storage cavity and the ink supply needle of the installation cavity, so that ink is supplied to the printer, the liquid detection part 4 and the shading part 3 are arranged on the box body 1, the liquid detection part 4 can be used for detecting the ink quantity in the box body 1, the shading part 3 is used for detecting the installation condition of the ink box in the installation cavity, the chip 2 is used for storing information related to the ink box, and the locking part 5 is used for clamping the installation cavity when the ink box is installed, so that the ink box is fixed.

As shown in fig. 2 and 3, the case 1 has a front surface a, a rear surface b, a top surface c, a bottom surface d, a left surface e and a right surface f, the rear surface b is opposite to the front surface a, the top surface c is intersected with the front surface a and the rear surface b, the bottom surface d is opposite to the top surface c, the left surface e is intersected with the front surface a, the rear surface b and the top surface c, the right surface f is opposite to the left surface e, and the front surface a, the rear surface b, the top surface c, the bottom surface d, the left surface e and the right surface f are connected to each other so that the case 1 forms a substantially rectangular parallelepiped case 1 structure.

To better explain the respective components of the ink cartridge, a three-dimensional rectangular coordinate system XYZ axis is established, the cartridge 1 is set in a Z-axis direction in a vertical direction (gravity direction) in a state of use (state of being mounted to the mounting chamber in an upright posture), the direction in which the top surface c is directed toward the bottom surface d is-Z direction (gravity direction), the horizontal direction is X direction, that is, the rear surface b is directed toward the front surface direction is +x direction, that is, the insertion direction of the ink cartridge and the length direction of the cartridge 1, -X direction is the removal direction of the ink cartridge, and the width of the cartridge 1 is the second direction Y, that is, the left surface e is directed toward the right surface f direction is +y direction.

In this embodiment, as shown in fig. 2 to 4, the rear surface b is a continuous arc surface, the continuous arc surface is a smooth surface, and the rear surface b has no protrusion or recess; the rear surface b is located at a substantially middle position in the Z direction with respect to the arc top thereof, that is, the rear surface b is located at a substantially middle position with respect to the maximum protruding distance in the-X direction. In this embodiment, the rear surface b has an arc a, and the bottom surface d has a length H1 in the longitudinal direction (X direction). The rear surface b of the ink box is made into a continuous cambered surface, so that the rear surface b of the ink box has no protruding part, and thus, even if the rear surface b lands on the ground when the ink box falls, the stress of the rear surface b is relatively uniform, and the probability of damage of the ink box under the condition that the ink box falls down from a high place and the rear surface b lands on the ground is reduced.

In this embodiment, as shown in fig. 4, the bottom surface d is a plane slightly inclined with respect to the insertion direction (+x direction), specifically, in the removal direction (-X direction) of the ink cartridge, the bottom surface d gradually inclines upward, i.e., from +x, -Z side to-X, +z side, and in the Z direction, the rear portion (-X axis side) of the bottom surface d is higher than the front portion (+x axis side) of the bottom surface d. The angle (inclination angle) formed by the bottom surface d and the +x direction is less than 3 degrees.

As shown in fig. 2 and 3, the chip 2 is disposed on the top surface c of the ink cartridge and is located on the front side of the top surface c, i.e., near the front surface a, in the direction of insertion of the ink cartridge, since the chip 2 is disposed near the front surface c, the impact to the chip 2 away from the rear surface b can be reduced as much as possible when the ink cartridge is impacted by the falling rear surface b, thereby reducing the possibility that the chip 2 is damaged. The chip 2 can be used to record information such as ink volume of the ink cartridge, number of times the ink cartridge is used, etc., and when the ink cartridge is mounted in the printer, the chip 2 is electrically connected to the printer to transmit information on the ink cartridge to the printer. The chip 2 may include a substrate, a memory element (e.g., a wafer) disposed on the substrate, and an electrical interface 21 disposed on an upper surface of the substrate. The printer is provided with a stylus in a mounting cavity, when the ink box is mounted in the mounting cavity, the chip 2 corresponds to the position of the stylus, the electric interface 21 on the chip 2 can be abutted against the stylus, so that the chip 2 is electrically connected with the stylus, and the printer can receive the information of the ink box on the chip 2. In order to avoid resource waste, the chip 2 on the ink cartridge can be detached to be mounted on a new ink cartridge for recycling.

As shown in fig. 2 and 3, the ink outlet 6 is located below the chip 2 in the Z direction. Specifically, in the present embodiment, the ink cartridge is provided with the groove 11 on the front surface a, the ink outlet 6 is provided in the groove 11, the ink outlet 6 communicates with the ink storage chamber inside the ink cartridge, the ink outlet 6 corresponds to the position of the ink supply needle provided in the installation chamber, and when the ink cartridge is installed in the installation chamber, the ink outlet 6 communicates with the ink supply needle, so that the ink cartridge can supply ink for the printer.

As shown in fig. 2 and 3, the light shielding portion 3 is provided on the top surface c of the cartridge 1, and the light shielding portion 3 is provided with a light shielding plate 31 capable of blocking or attenuating light emitted from the printing device, which can be used to detect whether the cartridge 1 is mounted in place on the printing device, and in the cartridge insertion direction, the light shielding portion 3 is located in front of the rear surface b and is provided close to the chip 2, and when the cartridge falls down, the impact to the chip 2 and the light shielding portion away from the rear surface b can be reduced as much as possible, thereby reducing the possibility that the chip 2 and the light shielding portion 3 are damaged. In the gravity direction, at least a part of the light shielding part 3 is positioned above the chip 2, that is, at least a part of the light shielding part 3 is higher than the chip 2, or the whole light shielding part 2 is higher than the chip 2; since the light shielding portion 3 is higher than the chip 2, when the ink cartridge is dropped in a posture in which the top surface c is downward and is impacted, the chip 2 can be prevented from being directly impacted, and the possibility of damage to the chip can be reduced. The light shielding part 3 is arranged on the top surface c of the ink box, the light shielding plate 31 is a light shielding plate 31 which is approximately cuboid on the top surface c of the ink box, a first light detection device is arranged in the printing device, and the first light detection device comprises a light emitter and a light receiver which are arranged along the Y direction, and the light emitter and the light receiver are spaced in the Y direction; when the ink cartridge is mounted in the mounting chamber, the light shielding plate 31 is inserted between the light emitter and the light receiver to shield the light signal emitted from the light emitter or to change the light path emitted from the light emitter to change the light signal received by the light receiver, thereby determining the mounting condition of the ink cartridge.

As shown in fig. 2 and 3, a liquid detecting portion 4 is provided on the top of the cartridge body 1, communicates with the ink reservoir for detecting the liquid amount state in the ink reservoir, and a light shielding plate 31 is located on the front side of the liquid detecting portion 4 in the cartridge insertion direction. The liquid detection portion 4 extends upward from the top surface c, and is located between the light shielding portion 3 and the locking portion 5. When the ink cartridge is mounted to the mounting chamber, the liquid detecting portion 4 is located between the second light detecting members of the mounting chamber. The liquid detection portion 4, in cooperation with the second light detection member, can measure whether or not the amount of ink in the ink storage chamber of the ink cartridge is smaller than a predetermined amount of ink. Specifically, when the ink storage chamber of the ink cartridge is filled with ink, the light emitted from the light emitter of the second light detecting member cannot or partially cannot pass through the liquid detecting portion 4 to the light receiver side. When the ink is reduced, the light emitted by the light emitter of the second light detecting element can reach one side of the light receiver through the liquid detecting part 4, and the amount of the ink in the ink storing cavity can be measured by matching the float and the sensing arm in the ink storing cavity, and whether the amount of the ink in the ink storing cavity of the ink box is smaller than the preset ink amount can be detected through the light projection state of the liquid detecting part 4.

In some other embodiments, the liquid detection portion 4 may be an adjustable shade. The liquid detection part 4 is electrically connected with the chip 2 through a wire, and the liquid detection part 4 can be adjusted according to the ink quantity information in the chip 2 to shield the light emitted by the second light detection piece. Since the liquid detection part 4 can adjustably block light, a voltage is selectively applied to the liquid detection part 4 according to different results of the ink quantity information output of the chip 2, so that the liquid detection part 4 selectively passes/blocks the light emitted by the second light detection piece, the ink can be completely detected, and a user is reminded of timely replacing the ink box.

As shown in fig. 2 and 3, the liquid detection portion 4 and the light shielding portion 3 are provided on the same side of the cartridge 1 (i.e., on the top surface c of the cartridge 1), the light shielding plate 31 is positioned on the front side of the liquid detection portion 4 in the cartridge insertion direction, the chip 2 is provided on the front side of the light shielding portion 3, the light shielding portion 3 is provided between the chip 2 and the liquid detection portion 4, and it is possible to prevent chips (e.g., dust) that the chip 2 collides with the mounting chamber and falls onto the liquid detection portion 4 when the cartridge is mounted, affecting the printing apparatus to detect the amount of ink in the cartridge through the liquid detection portion 4; the height of the liquid detection portion 4 and the light shielding plate 31 in the Z direction is higher than the height of the chip 2 in the Z direction, so that both the liquid detection portion 4 and the light shielding plate 31 are located above the chip 2, making it difficult for debris to adhere to the liquid detection portion 4.

Further, as shown in fig. 2 and 3, the light shielding portion 3 may further be provided with a shielding wall 32, where the shielding wall 32 is disposed on the rear side of the light shielding plate 31 and is integrally configured with the light shielding plate 31, the shape of the shielding wall 32 is adapted to the front side of the liquid detecting portion 4, the shielding wall 32 may be attached to the liquid detecting portion 4, and a certain gap may be provided between the shielding wall 32 and the liquid detecting portion 4, so that the shielding wall 32 can block chips falling from the chip 2 from attaching to the liquid detecting portion 4, and prevent the chips from affecting the detection of the liquid detecting portion 4. The height of the liquid detection part 4 on the box body 1 is not higher than the height of the shielding wall 32, and the maximum width of the shielding wall 32 in the Y direction is larger than or equal to the maximum width of the liquid detection part 4 in the Y axis direction, so that effective shielding can be formed on the liquid detection part 4; and when the ink cartridge collides or falls, the shielding part can also play a certain role in protecting the liquid detection part 4.

As shown in fig. 2 and 3, a locking portion 5 is provided on the top surface c of the cartridge 1, the height of the locking portion 5 in the Z direction being higher than the liquid detection portion 4 and the light shielding portion 3; in the X direction, the lock portion 5 is located on the rear side of the liquid detection portion 4, and the lock portion 5 is disposed near the rear surface b. And the locking part 5 is clamped with the clamping part when the ink box is arranged in the mounting cavity, so that the ink box is fixed in the mounting cavity. Specifically, the locking portion 5 is a fastening structure protruding from the top surface c of the box body 1, the fastening portion may be a cross bar disposed along the Y direction on the mounting cavity, and when the ink cartridge is mounted on the mounting cavity, the locking portion 5 of the fastening structure may be fastened to the cross bar of the mounting cavity, so that the ink cartridge is fastened and fixed in the mounting cavity.

Further, as shown in fig. 2 and 3, the box body 1 is further provided with a handle 7, so that the box body 1 is convenient to detach in the installation cavity. The handle 7 is disposed on the top surface c and is located at the rearmost side in the insertion direction, i.e., the handle 7 is located at the rear side of the lock portion 5, the handle 7 is located near the intersection of the top surface c and the rear surface b, and in the X direction, the whole of the handle 7 is located at the front side of the rear surface b, or a part of the handle 7 protrudes from the rear surface b, or the rearmost end of the handle 7 is flush with the rear surface b. The handle 7 is arranged, so that a user can conveniently operate the ink box, and the user can press the handle 7 to rotate the ink box in the Z direction, so that the locking part 5 of the ink box is separated from the mounting cavity, and the ink box is taken out; alternatively, the ink cartridge is pushed to be mounted in the mounting chamber by pushing the handle 7.

Example two

The present embodiment provides an ink cartridge, which is different from the first embodiment in that: the rear surface b of the ink cartridge is different in structure.

In this embodiment, as shown in fig. 5, the rear surface B of the ink cartridge is also a continuous arc surface, the arc of the rear surface B is B, the length of the bottom surface d in the length direction (X direction) is H2, the arc B of the rear surface B of this embodiment is greater than the arc a of the rear surface B of the first embodiment, that is, the rear surface B of this embodiment is a cambered surface with a greater arc, the arc of the rear surface B increases, and the position where the rear surface B intersects with the bottom surface d moves forward (moves forward in the +x direction) so that the length of the bottom surface d in the X direction decreases. When the arc B of the rear surface B is greater than the arc a, the length H2 of the corresponding bottom surface B is smaller than the length H1.

Alternatively, the arc of the arc surface of the rear surface b may be set smaller than the arc a of the first embodiment, the arc of the rear surface b is reduced, and the position where the rear surface b intersects with the bottom surface d is correspondingly moved backward (moved backward in the-X direction), so that the length of the bottom surface d in the X direction increases.

The radian of the rear surface b is set to be larger or smaller and still is a continuous arc surface, the rear surface b is still smooth and has no protrusion or recess, and even if the rear surface b lands when the ink cartridge falls, the stress of the rear surface b is relatively uniform, so that the effect of the probability of damaging the ink cartridge when the ink cartridge falls down from a high place and the rear surface b lands is reduced.

Other structures of the ink cartridge in this embodiment are the same as those of the first embodiment, and will not be described here again.

Example III

The present embodiment provides an ink cartridge, which is different from the first and second embodiments in that: the rear surface b of the ink cartridge is different in structure.

As shown in fig. 6, the rear surface b of the ink cartridge of the present embodiment is a plane perpendicular to the insertion direction (X direction), and in the upright posture, the rear surface b is a vertical plane extending in the gravity direction, lying in the XY plane, perpendicular to the horizontal plane.

In the present embodiment, the rear surface b is located on the front side of the rearmost end of the handle 7 in the X direction.

The rear surface b of the ink cartridge of this embodiment is set to be a flat plane, and has no protrusion or recess, and even if the rear surface b lands when the ink cartridge is dropped, the stress of the rear surface b is relatively uniform, so that the probability of breakage of the ink cartridge when the ink cartridge drops down from a high place and the rear surface b lands is reduced.

Other structures of the ink cartridge in this embodiment are the same as those of the first embodiment, and will not be described here again.

Example IV

The present embodiment provides an ink cartridge, which is different from the third embodiment in that: the rear surface b of the ink cartridge is different in structure.

As shown in fig. 7, the rear surface b of the ink cartridge of the present embodiment is also a plane perpendicular to the insertion direction (X direction), and the rear surface b includes a first face 01 and a third face 81, which are located in the same plane, and are vertical planes extending in the gravity direction.

In the Z direction, the first surface 01 is located above the third surface 81, the first surface 01 is the same as the first surface 01 (as shown in fig. 1) of the ink cartridge in the prior art, a soft material portion 8 is disposed at the position of the second surface 02 in the ink cartridge in fig. 1 to fill the defect, the rear end surface of the soft material portion 8 in the X direction is the third surface 81, and the first surface 01 and the third surface 81 together form the rear surface b of the ink cartridge, so that the whole rear surface b is a continuous and flat surface.

As shown in fig. 7, the cross section of the soft material portion 8 is substantially in a right triangle shape, one right-angle side of the right-angle side is a third side 81, the plane of the bevel edge of the soft material portion 8 is in the same plane with the first side 01 to form a rear surface b, the plane of the bevel edge of the soft material portion 8 is attached to the second side 02, the position of the plane of the other right-angle side of the soft material portion 8 extending to the bottom surface b is flush with the bottom surface b, alternatively, the plane of the soft material portion 8 extending to the bottom surface b may not be a plane, and is a continuously curved surface.

The soft material part 8 can deform (shrink inwards) along the insertion direction after receiving certain external force, and when the ink box falls to the ground on the rear surface b, the deformation generated by the stress of the soft material part 8 can generate a buffer effect to buffer the falling impact force, so that the probability of damaging the ink box is reduced.

In this embodiment, the soft material portion 8 is provided to fill the embedded portion of the ink cartridge (as shown in fig. 1) in the prior art into a plane, so that the rear surface b is a continuous plane, and no protrusion or recess is provided, and even if the rear surface b lands when the ink cartridge falls, the stress on the rear surface b is relatively uniform, thereby reducing the probability of damage of the ink cartridge when the ink cartridge falls from a high place and lands on the rear surface b; and soft material part 8 atress can inwards take place deformation when dropping, and the impact force that the buffering dropped further reduces the possibility of ink horn damage.

Other structures of the ink cartridge in this embodiment are the same as those of the first embodiment, and will not be described here again.

Example five

The present embodiment provides an ink cartridge, which is different from the first to fourth embodiments in that: the rear surface b of the ink cartridge is different in structure.

As shown in fig. 8, in the present embodiment, the rear surface b is a slope inclined with respect to the insertion direction (+x direction).

In this embodiment, the rear surface b is inclined from the +Z side to the +X side to the +Z side such that the rear surface b forms an obtuse angle with the insertion direction (+X direction).

The greater the inclination of the rear surface b (the greater the degree of obtuse angle), the more forward the position where the rear surface b intersects the bottom surface d (forward in the +x direction), i.e., the smaller the length of the bottom surface d in the X direction.

The rear surface b of the ink cartridge of this embodiment is set to be an inclined plane, and has no protrusion or recess, and even if the rear surface b lands when the ink cartridge is dropped, the stress of the rear surface b is relatively uniform, thereby reducing the probability of breakage of the ink cartridge in the case that the ink cartridge drops down from a high place and the rear surface b lands.

Other structures of the ink cartridge in this embodiment are the same as those of the first embodiment, and will not be described here again.

Example six

The present embodiment provides an ink cartridge, which is different from the first to fifth embodiments in that: the rear surface b of the ink cartridge is different in structure.

As shown in fig. 9, in this embodiment, the rear surface b and the bottom surface d form a continuous arc surface, that is, the rear surface b and the bottom surface d are the same arc surface, and there is no longer a position where the rear surface b and the bottom surface d intersect significantly, that is, the intersection of the rear surface b and the bottom surface d does not form a protrusion, and both the rear surface b and the bottom surface d are smooth, so that even if the rear surface b or the bottom surface d lands on the ink cartridge when the ink cartridge falls, the stress on the entire arc surfaces of the rear surface b and the bottom surface d is relatively uniform, thereby reducing the effect of the probability of breakage of the ink cartridge in the case that the ink cartridge falls down from a high place to the rear surface b or the bottom surface d lands on the ground.

Other structures of the ink cartridge in this embodiment are the same as those of the first embodiment, and will not be described here again.

Example seven

The present embodiment provides an ink cartridge, which is different from the first to sixth embodiments in that: the bottom surface d of the ink cartridge is different in structure.

As shown in fig. 10, in the present embodiment, the bottom surface d is a plane extending in the X direction, and is located in the same XY plane, and is located in a horizontal plane when the ink cartridge is mounted to the mounting chamber in the upright posture. The bottom surface d is inclined at an angle of 0 deg. to the X direction, i.e. no longer inclined with respect to the X direction, and the rear (-X axis side) and front (+x axis side) of the bottom surface d are the same in height in the Z direction.

Other structures of the ink cartridge in this embodiment are the same as those of the first embodiment, and will not be described here again.

Example eight

The present embodiment provides an ink cartridge, which is different from the seventh embodiment in that: the bottom surface d of the ink cartridge is different in structure.

As shown in fig. 11, in this embodiment, the bottom surface d extends along the X direction and forms an angle of 0 ° with the X direction. The front portion d1 (+x-axis side) of the bottom surface d is not uniform in height in the Z direction with the rear portion d2 (-X-axis side), and the front portion d1 of the bottom surface d is higher in height in the +z direction than the rear portion d2 in height in the +z direction. The front portion d1 and the rear portion d2 of the bottom surface are not in the same XY plane, but the front portion d1 and the rear portion d2 are parallel to each other. The front part d1 and the rear part d2 can be connected through smooth cambered surfaces or inclined surfaces.

Other structures of the ink cartridge in this embodiment are the same as those of the first embodiment, and will not be described here again.

What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.

Claims (10)

1. An ink cartridge to be mounted in an upright posture in a mounting chamber of a printer in an insertion direction, comprising:

a case having a front surface facing an insertion direction, a rear surface facing a direction opposite to the insertion direction and opposite to the front surface, and a bottom surface facing a gravitational direction, the case having a top surface disposed opposite to the bottom surface; the rear surface includes a continuous face;

a chip disposed on the top surface, the chip disposed proximate the front surface;

and the light shielding part is arranged on the top surface and is at least partially positioned above the chip in the gravity direction.

2. The ink cartridge as claimed in claim 1, wherein the rear surface is a cambered surface, and the light shielding portion is located in front of the rear surface in the insertion direction and is provided close to the chip.

3. The ink cartridge as in claim 2, wherein the greater the curvature of the rear surface, the smaller the length of the bottom surface in the insertion direction.

4. The ink cartridge as in claim 2, wherein the rear surface forms a continuous arcuate surface with the bottom surface.

5. The ink cartridge as in claim 1, wherein the rear surface is a sloped surface that is sloped with respect to the insertion direction.

6. The ink cartridge as in claim 5, wherein the rear surface forms an obtuse angle with the insertion direction.

7. The ink cartridge as in claim 1, wherein the rear surface is a plane perpendicular to the insertion direction.

8. The ink cartridge as in claim 7, wherein the portion of the rear surface proximate the bottom surface is a soft material portion.

9. The ink cartridge as in claim 8, wherein the soft material portion deforms inwardly when subjected to an external force.

10. The ink cartridge according to any one of claims 1 to 9, wherein a locking portion with the mounting chamber Xiang Kage is provided on the top surface, the locking portion being provided near the rear surface.