Ink box

Abstract

The ink box provided by the utility model can be detachably arranged on the imaging equipment with the contact pin, the ink box comprises a box body, a connecting assembly and a chip, and the chip at least comprises a substrate and a second electric contact part group; when the ink box is placed in an installation posture, the height direction of the ink box is the up-down direction, the width direction of the ink box is the front-back direction, and the length direction of the ink box is the left-right direction. The connecting assembly at least comprises a conductive part and a movable part, the conductive part is at least electrically disconnected with the contact pin at the first position, the movable part drives the conductive part to move from the first position to the second position when the movable part receives an external forcing force, and the conductive part is electrically connected with the contact pin and the second electric contact part group at the second position; the substrate is further provided with an avoiding part used for avoiding the connecting assembly, and in the front-back direction, at least the size of the conductive piece does not exceed the size of the avoiding part. Therefore, the connecting assembly only needs to be arranged on one side of the chip mounting part, and the area occupied by the connecting assembly on the substrate is small when the connecting assembly is observed in the left-right direction.

Description

Technical Field

[0001] The utility model relates to the technical field of inkjet imaging, in particular to an ink cartridge for an inkjet imaging device. Background Art

[0002] An ink cartridge is a consumable for an inkjet imaging device. The ink cartridge includes a housing, an ink outlet portion, and a chip. An ink chamber for containing ink is formed in the housing. The ink outlet portion communicates with the housing. The ink in the ink chamber is supplied to the outside of the ink cartridge through the ink outlet portion. The chip is located on the housing and is used for storing parameter information of the ink cartridge. The chip can form a communication connection with a stylus of the imaging device, so that the imaging device can obtain the parameter information of the ink cartridge.

[0003] The chip includes a substrate and a plurality of electrical contact portions. During the use of the ink cartridge, foreign matters may adhere to the surface of the housing, and some of the foreign matters can also conduct electricity. For example, ink droplets, metal wires, metal debris, etc. If conductive foreign matters adhere between the electrical contact portions of the chip, the chip will be short-circuited, and then the chip will be burned out or the chip cannot be recognized by the imaging device, affecting the subsequent use of the ink cartridge.

[0004] To solve the above problems, currently at least one electrical contact portion on the chip is disposed on the back side of the substrate (the side of the substrate facing the side wall of the ink cartridge). During the process of installing the ink cartridge to the imaging device, an electrical connection is formed between the electrical contact portion and the stylus of the imaging device through a connecting member disposed on the ink cartridge, and a maintaining member disposed on the ink cartridge is pressed by a component of the imaging device to ensure a stable electrical connection between the electrical contact portion and the stylus. However, in actual products, the structure is complex, the space occupied by the connecting member on the substrate is large, and the connecting member and the maintaining member are prone to interference with other components of the chip. Summary of the Utility Model

[0005] The ink cartridge provided by the utility model can solve at least one of the above technical problems. The specific solution is as follows.

[0006] An ink cartridge is detachably installed on an imaging device provided with a stylus. The ink cartridge includes a cartridge body and an ink chamber formed in the cartridge body. The ink chamber is used for containing ink. The ink cartridge is further provided with a chip installed on the cartridge body. The chip includes a substrate and electrical contact portions disposed on the substrate. The electrical contact portions include a first electrical contact portion group and a second electrical contact portion group. The first electrical contact portion group and the second electrical contact portion group are disposed on different surfaces of the substrate. When the ink cartridge is placed in an installed posture, the height direction of the ink cartridge is the up-down direction, the width direction of the ink cartridge is the front-back direction, and the length direction of the ink cartridge is the left-right direction.

[0007] The ink cartridge further includes a connection component for electrically connecting the second electrical contact group and the contact pins. The connection component at least includes a conductive member and a movable member. When the conductive member is in the first position, the conductive member is at least disconnected from the contact pins. When the movable member receives an external pushing force, the movable member drives the conductive member to move from the first position towards the second position. When the conductive member is in the second position, the conductive member electrically connects the contact pins and the second electrical contact group. The substrate is further provided with an avoidance portion for avoiding the connection component. In the front-back direction, at least the size of the conductive member does not exceed the size of the avoidance portion.

[0008] In the up-down direction, both the conductive member and the movable member can move relative to the substrate / cartridge body.

[0009] In the left-right direction, the conductive member can move between a far position and a near position. In the left-right direction, the far position is closer to the ink chamber than the near position. In the near position, the conductive member can be electrically connected to the contact pins. In the far position, the conductive member is not electrically connected to the contact pins. When in the first position, the conductive member is located at the far position. When in the second position, the conductive member is located at the near position.

[0010] The cartridge body is further provided with a mounting portion for mounting the chip. The mounting portion includes a first limiting portion for limiting the movement distance of the conductive member in the left-right direction. The first limiting portion includes a fifth abutting portion and a sixth abutting portion connected to each other. The fifth abutting portion is located above the sixth abutting portion. In the left-right direction, both the fifth abutting portion and the sixth abutting portion are used to abut against the conductive member. Compared with the sixth abutting portion, in the left-right direction, the fifth abutting portion is farther from the ink chamber.

[0011] The ink cartridge further includes an ink outlet portion that communicates with the cartridge body. The ink outlet portion is used to supply ink to the imaging device. The central axis of the ink outlet portion is parallel to the up-down direction. The inner surface of the fifth abutting portion facing the ink chamber is set as an arc surface. Along the direction from bottom to top, the distance between the inner surface and the central axis of the ink outlet portion gradually increases.

[0012] The ink cartridge further includes an ink outlet portion that communicates with the cartridge body. The ink outlet portion is used to supply ink to the imaging device. The central axis of the ink outlet portion is parallel to the up-down direction. The inner surface of the fifth abutting portion facing the ink chamber is set as an inclined surface. Along the direction from bottom to top, the distance between the inner surface and the central axis of the ink outlet portion gradually increases.

[0013] The connection component further includes a first acting member and a second acting member both set to have elasticity. The first acting member is used to push the conductive member towards the far position, and the second acting member is used to push the conductive member towards the first position.

[0014] The conductive member includes a conductive portion, a first abutting portion, and a second abutting portion. The first abutting portion is located above the second abutting portion. The conductive portion is used to form an electrical connection with the second electrical contact portion group. When the fifth abutting portion abuts against the second abutting portion, the first abutting portion forms an electrical connection with the contact pin. When the sixth abutting portion abuts against the second abutting portion, the first abutting portion disconnects the electrical connection with the contact pin.

[0015] The movable member includes a fourth abutting portion and a second limiting portion. The fourth abutting portion is used to receive an external pressing force. The second limiting portion is used to abut against the conductive member to limit the movement distance of the conductive member in the up and down direction.

[0016] The substrate has a first surface and a second surface that are oppositely arranged. The first surface faces away from the ink chamber, and the second surface faces the ink chamber. The first electrical contact portion group is located on the first surface, and the second electrical contact portion group is not located on the first surface. When observing the substrate facing the surface where the first electrical contact portion group is located, the second electrical contact portion group cannot be observed.

[0017] Compared with the prior art, for the ink cartridge provided by the present utility model, in the front-rear direction, at least the size of the ink cartridge conductive member does not exceed the size of the avoidance portion. In this way, the connection assembly only needs to be arranged on one side of the installation portion, and when observing along the left-right direction, the connection assembly occupies a smaller area of the substrate. Description of the Drawings

[0018] Figure 1A is a perspective view of the ink cartridge related to the present utility model when not installed in the imaging device.

[0019] Figure 1B is a perspective view of the ink cartridge related to the present utility model after being installed in the imaging device.

[0020] Figure 2A and Figure 2B is a perspective view of the chip of the ink cartridge related to the present utility model.

[0021] Figure 3 is a perspective view of the ink cartridge related to the present utility model after hiding the chip.

[0022] Figure 4A and Figure 4B is a perspective view of the connection assembly of the ink cartridge related to the present utility model.

[0023] Figure 5A is a schematic diagram of the ink cartridge related to the present utility model when not installed in the imaging device, after being sectioned along the Figure 1A AA direction in

[0024] Figure 5B is a perspective view of the ink cartridge related to the present utility model after being installed in the imaging device, after being sectioned along the Figure 1B BB direction in Detailed Description of the Invention

[0025] Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0026] The ink cartridge 100 can be detachably installed in an inkjet imaging device having a contact pin 200. For ease of understanding and description, hereinafter, when the ink cartridge 100 is placed in the installed posture, the height direction of the ink cartridge 100 is the up-down direction, the width direction of the ink cartridge 100 is the front-back direction, the length direction of the ink cartridge 100 is the left-right direction, and the up-down direction, the front-back direction, and the left-right direction intersect pairwise.

[0027] As Figure 1A and Figure 1B shown, the ink cartridge 100 includes a cartridge body and an ink outlet portion 30. The cartridge body includes a main housing 10 and a face cover 20. An ink chamber 40 for accommodating ink is formed between the main housing 10 and the face cover 20. The ink outlet portion 30 communicates with the ink chamber 40, and ink is supplied to the imaging device through the ink outlet portion 30. The center line of the ink outlet portion 30 is parallel to the up-down direction; in the up-down direction, the cartridge body has upper side walls 11 and lower side walls 12 arranged at intervals, in the front-back direction, the cartridge body has front side walls 13 and rear side walls 14 arranged at intervals, and in the left-right direction, the cartridge body has a left side wall 15 and a right side wall 16 arranged at intervals. The upper side walls 11, the lower side walls 12, the front side walls 13, the rear side walls 14, the left side wall 15, and the right side wall 16 enclose to form the ink chamber 40.

[0028] In some embodiments, the ink cartridge 100 further includes a handle 50 for facilitating the handling of the ink cartridge 100. The handle 50 is disposed on one of the upper side wall 11, the lower side wall 12, the front side wall 13, the rear side wall 14, the left side wall 15, and the right side wall 16.

[0029] The ink cartridge 100 is also provided with a chip 60 installed on one of the upper side wall 11, the lower side wall 12, the front side wall 13, the rear side wall 14, the left side wall 15, and the right side wall 16. In the following description, it is taken as an example that the chip 60 is installed on the left side wall 15 for illustration; as Figure 2A and Figure 2B shown, the chip 60 is used to store parameter information of the ink cartridge 100. The chip 60 includes a substrate 61, a storage member 62, and an electrical contact portion. The storage member 62 is used to store the parameter information of the ink cartridge 100, and the electrical contact portion is used to form an electrical connection with the contact pin 200 of the imaging device, so that the ink cartridge 100 and the imaging device form a communication connection.

[0030] The electrical contact part includes a first electrical contact part group 63 and a second electrical contact part group 64. The first electrical contact part group 63 and the second electrical contact part group 64 are arranged on different surfaces of the substrate 61. The substrate 61 has a first surface 611 and a second surface 612 which are oppositely arranged. After the chip 60 is installed on the ink cartridge 100, the second surface 612 faces the ink chamber 40 / left side wall 15, and the first surface 611 faces away from the ink chamber 40 / left side wall 15. The first electrical contact part group 63 is arranged on the first surface 611, and the second electrical contact part group 64 is not arranged on the first surface 611. When observing the surface where the first electrical contact part group 63 is located, the second electrical contact part group 64 cannot be observed. The storage part 62 is located on the second surface 612.

[0031] In some embodiments, the second electrical contact group 64 is arranged on the second surface 612.

[0032] The substrate 61 is further provided with an avoidance part 614 for avoiding the following connection component 80. The avoidance part 614 is a notch formed on the substrate 61. In this way, the substrate 61 further has a third surface 615 and a fourth surface 616 which are connected to each other. The third surface 615 and the fourth surface 616 are both connected to the first surface 611 and the second surface 612.

[0033] In some embodiments, the second electrical contact part group 64 can also be arranged on the third surface 615 or the fourth surface 616.

[0034] In some embodiments, at least one matching part 613 is further arranged on the substrate 61. The matching part 613 is used to cooperate with the following positioning part 75 arranged on the left side wall 15, so that the chip 60 is fixed on the left side wall 15. The matching part 613 is arranged to pass through the notch of the substrate 61 along the thickness direction of the substrate 61.

[0035] As Figure 3 shown, an installation part 70 for installing the chip 60 is arranged on the cartridge body / left side wall 15 of the ink cartridge 100. The installation part 70 includes an installation groove 71 formed by recessing towards the ink chamber 11, a first support part 72 and a second support part 73 arranged in the installation groove 71 for supporting the substrate 61. The first support part 72 has a first support surface 721, and the second support part 73 has a second support surface 731. The substrate 61 is supported by the first support surface 721 and the second support surface 731. The installation part 70 further includes a first limiting part 74 located in the installation groove 71. The first limiting part 74 is used to limit the movement distance of at least a part of the connection component 80 in the left-right direction.

[0036] In some embodiments, the mounting portion 70 further includes at least one positioning portion 75 disposed in the mounting groove 71. The positioning portion 75 is configured to interact with the mating portion 613 of the substrate 61 such that the chip 60 is fixed to the ink cartridge 100. The positioning portion 75 is provided as a stud.

[0037] In some embodiments, the positioning portion 75 can be melted, so that the chip 60 is more stably fixed to the ink cartridge 100.

[0038] In some embodiments, the substrate 61 can also be directly bonded to the first support surface 721 and the second support surface 731, so that the chip 660 is fixed to the ink cartridge 100. By such an arrangement, the positioning portion 75 can be omitted.

[0039] In some embodiments, the main housing 10 of the ink cartridge 100 is provided with a guiding groove 17 for guiding at least a part of the following connecting component 80 to move in the up and down direction.

[0040] As Figure 4A and Figure 4B shown, the ink cartridge 100 further includes a connecting component 80 mounted in the mounting groove 71. The connecting component 80 is used for electrically connecting the second electrical contact portion group 64 and the contact pin 200. The connecting component 80 includes a conductive member 81, a movable member 82, a first acting member 84, and a second acting member 83. In the up and down direction, both the conductive member 81 and the movable member 82 can move relative to the substrate 61 / the cartridge body. In the front and back direction, the size of at least a part of the connecting component 80 does not exceed the size of the avoiding portion 614 / the fourth surface 616. Specifically, at least the size of the conductive member 81 in the front and back direction does not exceed the size of the avoiding portion 614 / the fourth surface 616. In this way, in the front and back direction, the connecting component 80 only needs to be disposed on one side of the mounting groove 71. When observed in the left and right direction, the area of the substrate 61 occupied by the connecting component 80 is small.

[0041] The conductive member 81 is used for electrically connecting the second electrical contact portion group 64 and the contact pin 200. The conductive member 81 is provided as a conductor having local or overall conductivity. In the up and down direction, the conductive member 81 is configured to be movable between a first position and a second position. When the conductive member 81 is in the first position, the conductive member 81 is at least disconnected from the contact pin 200. When the movable member 82 receives an external pressing force, the movable member 82 drives the conductive member 81 to move from the first position towards the second position. When the conductive member 81 is in the second position, the conductive member 81 electrically connects the contact pin 200 and the second electrical contact portion group 64.

[0042] The first acting member 84 and the second acting member 83 are both set as elastic members such as compression springs, tension springs, rubbers, etc. The first acting member 84 is used to push the conductive member 81 towards the following away position. Moreover, the first acting member 84 extends in the vertical direction, and the first acting member 84 can at least elastically deform in the vertical direction; the second acting member 83 is used to push the conductive member 81 towards the first position. Moreover, the second acting member 83 extends in the left - right direction, and the second acting member 83 can at least elastically deform in the left - right direction.

[0043] The conductive member 81 includes a conductive portion 811, a third fixing portion, a first abutting portion 812, a second abutting portion 813, and at least one third abutting portion 814. The first abutting portion 812 is located above the second abutting portion 813. The conductive portion 811 is used to form an electrical connection with the second electrical contact portion group 64. The third fixing portion is used to fix one end of the second acting member 83. The first abutting portion 812 is used to form an electrical connection with the stylus 200. The second abutting portion 813 is used to abut against the first limiting portion 74. The third abutting portion 814 is used to abut against the movable member 82.

[0044] The movable member 82 includes a fourth abutting portion 821, a first fixing portion 822, and a second fixing portion 823 arranged in the vertical direction. The fourth abutting portion 821 is used to receive an external pushing force, so that the movable member 82 moves upward, and further the movable member 82 drives the conductive member 81 to move upward; the first fixing portion 822 is used to fix the other end of the second acting member 83. The second fixing portion 823 is used to fix one end of the first acting member 84. The other end of the first acting member 84 is fixed by the second supporting portion 73 in the mounting groove 71.

[0045] The movable member 82 further includes a second limiting portion 824 and at least one third limiting portion 825. The second limiting portion 824 is used to abut against the conductive member 81 to limit the movement distance of the conductive member 81 in the vertical direction. The second limiting portion 824 is located at the upper part of the movable member 82. The second limiting portion 824 can abut against the uppermost end of the conductive member 81 in the vertical direction to limit the upward movement of the conductive member 81; the third limiting portion 825 is used to abut against the third abutting portion 814. The first limiting portion 74 and the third limiting portion 825 are used to limit the movement distance of the conductive member 81 in the left - right direction. In the front - back direction, the conductive member 81 is restricted by the side wall of the ink cartridge 100.

[0046] In some embodiments, the movable member 82 further includes a guiding member 826 that cooperates with the guiding groove 17. The cooperation between the guiding groove 17 and the guiding member 826 is used to guide the movement of the movable member 82 in the vertical direction.

[0047] In some embodiments, such as Figure 5AAs shown, the first limiting portion 74 includes a fifth abutting portion 741 and a sixth abutting portion 742 that are connected to each other. The fifth abutting portion 741 is located above the sixth abutting portion 742. Both the fifth abutting portion 741 and the sixth abutting portion 742 are used to abut against the conductive member 81 / the second abutting portion 813 to limit the moving distance of the conductive member 81 in the left - right direction. Compared with the sixth abutting portion 742, in the left - right direction, the fifth abutting portion 741 is farther from the left side wall 15 / the ink chamber 40. Under the action of the second acting member 83, along the left - right direction, the conductive member 81 can move between a far position and a near position. The far position is closer to the ink chamber 40 than the near position, and the far position is farther from the stylus 200 than the near position. In the near position, the conductive member 81 can be electrically connected to the stylus 200, and in the far position, the conductive member 81 is not electrically connected to the stylus 200.

[0048] In some embodiments, the side surface of the fifth abutting portion 741 facing the ink chamber 40 is an inner surface, and the inner surface is arranged as an arc surface. Along the direction from bottom to top, the distance between the inner surface and the center line of the ink outlet portion 30 gradually increases. Correspondingly, the side surface (outer surface) of the second abutting portion 813 facing the first limiting portion 74 / the fifth abutting portion 741 is also arranged as an arc surface, so that when the fifth abutting portion 741 and the second abutting portion 813 are in contact, they can fit better.

[0049] In some embodiments, the side surface of the fifth abutting portion 741 facing the ink chamber 40 is an inner surface, and the inner surface is arranged as an inclined surface. Along the direction from bottom to top, the distance between the inner surface and the center line of the ink outlet portion 30 gradually increases. With such a setting, when the fifth abutting portion 741 and the second abutting portion 813 are in contact, they can also fit well.

[0050] Through the above settings,

[0051] First, when the fifth abutting portion 741 abuts against the second abutting portion 813, the fifth abutting portion 741 can support the conductive member 81 below the conductive member 81 (as Figure 5B shown), so that not only can the conductive member 81 be kept in continuous and stable connection with the second electrical contact portion group 64, but also the elastic force requirement for the first acting member 83 can be reduced, and the service life of the first acting member 83 can be extended;

[0052] Second, during the installation of the ink cartridge 100, along the left - right direction, the conductive member 81 needs to move from the far position to the near position, which can prevent the conductive member 81 from always contacting the stylus 200 and affecting the service lives of the stylus 200 and the conductive member 81.

[0053] Third, during the installation of the ink cartridge 100, in the left-right direction, the conductive member 81 needs to move from a remote position towards a close position, which can avoid the conductive portion 811 from being in continuous contact with the second electrical contact portion group 64, or avoid the conductive portion 811 from moving on the second contact portion group 64, further reducing the loss of the second electrical contact portion group 64 and extending its service life.

[0054] As Figure 5A shown, when the ink cartridge 100 is not installed in the imaging device, the first limiting portion 74 / the sixth abutting portion 742 abuts against the second abutting portion 813. At this time, the conductive member 81 is located at the first position, the second acting member 83 is squeezed and elastically deformed, and the elastic force of the first acting member 84 is released, and the conductive member 81 is at least disconnected from the contact pin 200.

[0055] In some embodiments, when the ink cartridge 100 is not installed in the imaging device, in the up-down direction, the uppermost end of the conductive member 81 abuts against the second limiting portion 824, and the lowermost position of the conductive member 81 abuts against the fourth abutting portion 821. After such a setting, the conductive member 81 is limited in the up-down direction, and the conductive member 81 is more stably located in the installation groove 71.

[0056] In some embodiments, when the ink cartridge 100 is not installed in the imaging device, in the left-right direction, the third abutting portion 814 abuts against the third limiting portion 825. After such a setting, under the combined action of the first limiting portion 74 and the third limiting portion 825, the conductive member 81 is limited in the left-right direction, and the conductive member 81 is more stably located in the installation groove 71.

[0057] As Figure 5B shown, as the ink cartridge 100 is gradually installed in the imaging device, the fourth abutting portion 821 abuts against the imaging device and receives an external acting force / an external pressing force, and the movable member 82 drives the conductive member 81 to move from the first position towards the second position. When the conductive member 81 is at the second position, the conductive member 81 electrically connects the contact pin 200 and the second electrical contact portion group 64. For example, when the movable member 82 moves upward, the conductive member 81 can move upward under the drive of the movable member 82. At the same time, under the action of the second acting member 83, the conductive member 81 moves towards a direction away from the ink cartridge 100 / close to the contact pin 200 until the first limiting portion 74 / the fifth abutting portion 741 abuts against the second abutting portion 813. At this time, the conductive member 81 is located at the second position, the first acting member 84 is squeezed and elastically deformed, the elastic force of the second acting member 83 is released, and the first abutting portion 812 forms an electrical connection with the contact pin 200, and the second electrical contact portion group 64 forms an electrical connection with the conductive portion 811.

[0058] In summary, at the first position, the conductive member is at a remote position, and at the second position, the conductive member is at a close position.

[0059] In some embodiments, the moving direction of the conductive member 81 driven by the movable member 82 may be not only the upward direction, but also the downward direction, or the conductive member 81 may move in the front-back direction, as long as the conductive member 81 can move from the first position to the second position.

[0060] In some embodiments, an electrical connection may also be formed between the conductive portion 811 and the third surface 615 or the fourth surface 616, so that the conductive portion 811 is electrically connected to the second electrical contact portion group 64.

[0061] [Beneficial effects]

[0062] Compared with the prior art, the ink cartridge 100 provided by the present utility model has the following beneficial effects:

[0063] In the first aspect, in the front-back direction, at least the size of the conductive member 81 of the ink cartridge 100 does not exceed the size of the fourth surface 616. In this way, the connection assembly 80 only needs to be arranged on one side of the installation groove 71, and when observed in the left-right direction, the area of the connection assembly 80 occupying the substrate 61 is relatively small.

[0064] In the second aspect, after the ink cartridge 100 is installed in the imaging device, an electrical connection is formed between the second electrical contact portion group 64 and the contact pin 200 through the connection assembly 80 / conductive member 81. During this process, only the movable member 82 of the connection assembly 80 needs to be in contact with the imaging device, so that the positions of the first acting member 84 and the second acting member 83 change, and further the conductive portion 811 is electrically connected to the second electrical contact portion group 64, and the first contact portion 812 is electrically connected to the contact pin 200. In this way, the steps of electrically connecting the second electrical contact portion group 64 and the contact pin 200 are reduced, and the process becomes simple, which is beneficial to quickly forming an electrical connection between the second electrical contact portion group 64 and the contact pin 200.

[0065] In the third aspect, the ink cartridge 100 is provided with a first limiting portion 74, the movable member 82 is provided with a second limiting portion 824 and at least one third limiting portion 825. Both the first limiting portion 74 and the third limiting portion 825 can limit the movement distance of the conductive member 81 in the left-right direction, and the second limiting portion 824 can abut against the uppermost end of the conductive member 81 in the up-down direction, so that the conductive member 81 cannot move upward. In the front-back direction, the conductive member 81 is restricted by the front side wall 13 and the rear side wall 14 of the ink cartridge 100. In this way, when the conductive member 81 electrically connects the second electrical contact portion group 64 and the contact pin 200, the conductive portion 811 can stably form an electrical connection with the second electrical contact portion group 64. At the same time, under the combined action of the first limiting portion 74, the second acting member 83 and the second limiting portion 824, the conductive member 81 is difficult to move, and further the conductive portion 811 is difficult to be disconnected from the second electrical contact portion group 64.

Claims

1. An ink cartridge is detachably mounted to an imaging device provided with a stylus. The ink cartridge includes a cartridge body and an ink chamber formed in the cartridge body for containing ink. The ink cartridge is further provided with a chip mounted on the cartridge body. The chip includes a substrate and electrical contact portions provided on the substrate. The electrical contact portions include a first electrical contact portion group and a second electrical contact portion group, and the first electrical contact portion group and the second electrical contact portion group are provided on different surfaces of the substrate. When the ink cartridge is placed in the mounted posture, the height direction of the ink cartridge is the up-and-down direction, the width direction of the ink cartridge is the front-and-back direction, and the length direction of the ink cartridge is the left-and-right direction. It is characterized in that The ink cartridge further includes a connection component for electrically connecting the second electrical contact portion group and the stylus. The connection component at least includes a conductive member and a movable member. When the conductive member is in the first position, the conductive member is at least disconnected from the stylus. When the movable member receives an external pressing force, the movable member drives the conductive member to move from the first position to the second position. When the conductive member is in the second position, the conductive member electrically connects the stylus and the second electrical contact portion group. The substrate is further provided with an avoidance portion for avoiding the connection component. In the front-and-back direction, at least the size of the conductive member does not exceed the size of the avoidance portion.

2. The ink cartridge according to claim 1, wherein In the up-and-down direction, both the conductive member and the movable member can move relative to the substrate / cartridge body.

3. The ink cartridge according to claim 2, wherein In the left-and-right direction, the conductive member can move between a far position and a near position. In the left-and-right direction, the far position is closer to the ink chamber than the near position. In the near position, the conductive member can be electrically connected to the stylus. In the far position, the conductive member is not electrically connected to the stylus. When in the first position, the conductive member is located at the far position. When in the second position, the conductive member is located at the near position.

4. The ink cartridge according to claim 3, characterized in that, The cartridge body is further provided with a mounting portion for mounting the chip. The mounting portion includes a first limiting portion for limiting the movement distance of the conductive member in the left-and-right direction. The first limiting portion includes a fifth abutting portion and a sixth abutting portion connected to each other. The fifth abutting portion is located above the sixth abutting portion. In the left-and-right direction, both the fifth abutting portion and the sixth abutting portion are used for abutting against the conductive member. Compared with the sixth abutting portion, in the left-and-right direction, the fifth abutting portion is farther from the ink chamber.

5. The ink cartridge according to claim 4, characterized in that, The ink cartridge further includes an ink outlet portion communicating with the cartridge body for supplying ink to the imaging device. The center line of the ink outlet portion is parallel to the up-and-down direction. The inner surface of the fifth abutting portion facing the ink chamber is provided as an arc surface, and along the direction from bottom to top, the distance between the inner surface and the center line of the ink outlet portion gradually increases.

6. The ink cartridge according to claim 4, wherein, The ink cartridge further includes an ink outlet portion communicating with the cartridge body for supplying ink to the imaging device. The center line of the ink outlet portion is parallel to the up-and-down direction. The inner surface of the fifth abutting portion facing the ink chamber is provided as an inclined surface, and along the direction from bottom to top, the distance between the inner surface and the center line of the ink outlet portion gradually increases.

7. The ink cartridge according to claim 3, wherein The connection component further includes a first acting member and a second acting member both provided with elasticity. The first acting member is used for pressing the conductive member towards the far position, and the second acting member is used for pressing the conductive member towards the first position.

8. The ink cartridge according to claim 6, wherein, The conductive member includes a conductive portion, a first abutting portion, and a second abutting portion. The first abutting portion is located above the second abutting portion. The conductive portion is used to form an electrical connection with the second electrical contact portion group. When the fifth abutting portion abuts against the second abutting portion, the first abutting portion forms an electrical connection with the contact pin. When the sixth abutting portion abuts against the second abutting portion, the first abutting portion disconnects the electrical connection with the contact pin.

9. The ink cartridge according to claim 8, characterized in that, The movable member includes a fourth abutting portion and a second limiting portion. The fourth abutting portion is used to receive an external pressing force, and the second limiting portion is used to abut against the conductive member to limit the movement distance of the conductive member in the up-and-down direction.

10. The ink cartridge according to any one of claims 1 to 9, characterized in that, The substrate has a first surface and a second surface which are oppositely arranged. The first surface faces away from the ink chamber, and the second surface faces the ink chamber. The first electrical contact portion group is located on the first surface, and the second electrical contact portion group is not located on the first surface. When observing the substrate facing the surface where the first electrical contact portion group is located, the second electrical contact portion group cannot be observed.

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