Chip and ink cartridge having the same

Abstract

The present invention relates to a chip and an ink cartridge having the chip, wherein the chip is used to be installed on a shell of an ink cartridge and can be installed in an ink cartridge accommodating chamber provided with a contact pin along with the ink cartridge, the chip comprises a substrate and an electrical contact portion provided on the substrate, the ink cartridge further comprises a movable part movable relative to the shell, and the chip further comprises a positioning part provided on the substrate; when the ink cartridge is installed toward the ink cartridge accommodating chamber, the movable part receives a force from the ink cartridge accommodating chamber, forcing the chip to move from a first position to a second position around the positioning part, and when the force is removed, the chip returns from the second position to the first position under the action of its own gravity and / or external components of the chip; in the first position, no communication connection is established between the electrical contact portion and the contact pin, and the chip is maintained in a balanced state through the positioning part; in the second position, a communication connection is established between the electrical contact portion and the contact pin, and the beneficial effect of the present invention is that the structure of the ink cartridge is simplified.

Description

[0001] This invention claims the priority of the prior application with application number CN202122599657.2 and invention name “Ink Cartridge”, filed by the applicant with the State Intellectual Property Office of China on October 26, 2021. The entire contents of the prior application are cited in this application. Technical Field

[0002] The invention relates to the field of inkjet imaging, and in particular to an ink cartridge detachably installed in an inkjet imaging device and a chip installed in the ink cartridge. Background Art

[0003] An ink cartridge is a container for supplying ink to an inkjet imaging device (hereinafter referred to as the "device") and is installed in the device in a detachable manner. Generally, multiple ink cartridges need to be installed in the device at the same time, and the multiple ink cartridges are installed in the device in an adjacent arrangement. Each ink cartridge contains ink of a different color. Accordingly, the device is provided with multiple ink cartridge accommodating cavities for accommodating ink cartridges, and each ink cartridge accommodating cavity corresponds to an ink cartridge accommodating cavity. Each ink cartridge accommodating cavity is provided with an ink suction needle, a contact needle and a locking portion.

[0004] The ink cartridge is provided with an ink outlet assembly for ink to flow out, a chip for establishing a communication connection with a device, and a locking surface for preventing the ink cartridge from being withdrawn from the device. The chip is installed above the ink cartridge in a flat manner, and at the same time, the electrical contact portion on the chip also faces upward, and the locking surface faces the opposite direction of the ink cartridge installation direction; in the initial stage of installing the ink cartridge toward the device, the ink cartridge is tilted as a whole. When the ink cartridge reaches a predetermined position of the device, the ink cartridge as a whole will rotate with a certain point in the ink outlet assembly as the center of the circle to reach a non-tilted state. Finally, the ink cartridge is installed to the device in a non-tilted posture.

[0005] The ink cartridge is also provided with an air guide hole. When the ink suction needle absorbs ink from the ink cartridge, the external atmosphere is introduced into the interior of the ink cartridge through the air guide hole to maintain the internal pressure of the ink cartridge stable. Existingly, the air guide hole is sealed by an air guide film. Before the user installs the ink cartridge into the device, the user needs to tear off the air guide film first, and then install the ink cartridge into the corresponding ink cartridge accommodating cavity.

[0006] During the installation process, the ink outlet assembly is combined with the ink absorption needle, the electrical contact part of the chip is electrically connected to the contact pin, and at the same time, the locking part is combined with the locking surface to limit the ink cartridge from moving in the direction opposite to the installation direction; when the ink cartridge needs to be taken out, the ink cartridge is pushed again in the installation direction to release the combination of the locking part and the locking surface, and then the ink cartridge returns from a non-tilted posture to a tilted posture and moves in the direction opposite to the installation direction. Finally, the user takes the ink cartridge out of the device. Summary of the invention

[0007] The present invention provides a chip for simplifying the structure of an ink cartridge, and the specific solution adopted is:

[0008] A chip is used to be installed on the shell of an ink cartridge and can be installed in an ink cartridge accommodating chamber provided with a contact pin along with the ink cartridge. The chip includes a substrate and an electrical contact portion provided on the substrate. The ink cartridge also includes a movable part movable relative to the shell. The chip also includes a positioning portion provided on the substrate. When the ink cartridge is installed toward the ink cartridge accommodating chamber, the movable part receives a force from the ink cartridge accommodating chamber, forcing the chip to move from a first position to a second position around the positioning portion. When the force is removed, the chip returns from the second position to the first position under the action of its own gravity and / or external components of the chip. In the first position, no communication connection is established between the electrical contact portion and the contact pin, and the chip is maintained in a balanced state through the positioning portion. In the second position, a communication connection is established between the electrical contact portion and the contact pin.

[0009] In the first position, the movable member does not contact the substrate, and in the second position, the substrate is abutted by the movable member, so that the dimensional accuracy requirement of the movable member can be reduced;

[0010] The chip also includes a counterweight, which is arranged in front of or behind the positioning part according to the posture requirements of the chip when it is in the first position. Therefore, the chip can have multiple postures in the first position. Ultimately, the cartridge designer can set the position of the counterweight according to the posture requirements of the chip.

[0011] Preferably, when the chip is located at the first position, the substrate is inclined relative to the front-rear direction, and the front end provided with the electrical contact portion is inclined upward to reduce the stroke when the electrical contact portion contacts the contact pin.

[0012] The chip may be arranged to be combined with the housing in a rotational manner, and the positioning portion is a protrusion or a groove arranged on the substrate.

[0013] Alternatively, the chip is arranged to be combined with the housing in a translational manner, and the positioning portion is a protrusion arranged on the substrate.

[0014] The present invention also provides an ink cartridge, which includes a shell for containing ink and the chip as described above, and the movable part is combined with the shell in a rotational or translational manner. Preferably, the ink cartridge also includes a reset part located between the chip and the shell, and the reset part is used to provide a reset force for the chip to return from the second position to the first position. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the ink cartridge involved in the first embodiment of the present invention before being installed.

[0016] Figure 2 The invention relates to an internal structure diagram of an ink cartridge containing chamber.

[0017] Figure 3 It is a schematic diagram of partial component decomposition of the ink cartridge involved in the first embodiment of the present invention.

[0018] Figure 4 It is a three-dimensional view of the ink outlet assembly in the ink cartridge involved in the first embodiment of the present invention after some parts are hidden, and the view is cut along a plane parallel to the front-to-back direction and passing through the center line of the ink outlet.

[0019] Figure 5 It is a three-dimensional diagram of the chip involved in the present invention.

[0020] Fig. 6A and Figure 6B 4 is a three-dimensional diagram of a chip mounting base according to the first embodiment of the present invention.

[0021] Figure 7 It is a three-dimensional view of the ink cartridge involved in the first embodiment of the present invention after being cut along a plane parallel to the front-to-back direction and passing through the center line of the ink outlet.

[0022] Fig. 8A It is a schematic diagram of the state of the ink cartridge involved in the first embodiment of the present invention after being installed in the device.

[0023] Figure 8B This is a three-dimensional view of the ink cartridge involved in the first embodiment of the present invention after being installed in the device, cut along a plane parallel to the front-to-back direction and passing through the center line of the ink outlet.

[0024] Fig. 9 It is a three-dimensional diagram of the ink cartridge involved in the second embodiment of the present invention.

[0025] Fig.10 It is a schematic diagram of the exploded view of some components of the ink cartridge involved in the second embodiment of the present invention.

[0026] Fig.11 It is a three-dimensional diagram of the movable parts in the ink cartridge involved in the second embodiment of the present invention.

[0027] Fig. 12A It is a schematic diagram of the relative positions of the chip assembly and the ink cartridge accommodating cavity before the ink cartridge involved in the second embodiment of the present invention is installed.

[0028] Fig. 12B It is a schematic diagram of the relative positions of the chip assembly and the ink cartridge accommodating cavity after the ink cartridge involved in the second embodiment of the present invention is installed.

[0029] Fig.13 It is a schematic diagram of the relative positions of the chip assembly and the ink cartridge accommodating cavity after the ink cartridge involved in the third embodiment of the present invention is installed.

[0030] Fig.14 It is a schematic diagram of the relative positions of the chip assembly and the ink cartridge accommodating cavity before the ink cartridge involved in the fourth embodiment of the present invention is installed.

[0031] Fig.15 It is a schematic diagram of the decomposition of some components of the ink cartridge involved in the fifth embodiment of the present invention.

[0032] Fig.16 It is a schematic diagram of the decomposition of some components of the ink cartridge involved in the sixth embodiment of the present invention.

[0033] Fig.17 It is a three-dimensional diagram of the chip seat in the ink cartridge involved in the sixth embodiment of the present invention.

[0034] Fig.18 It is a schematic diagram of the relative positions of the chip assembly and the ink cartridge accommodating cavity after the ink cartridge involved in the sixth embodiment of the present invention is installed. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] Embodiment 1

[0037] [Overall structure of ink cartridge and device]

[0038] Figure 1 is a three-dimensional diagram of the ink cartridge involved in the first embodiment of the present invention before being installed; Figure 2 1 is a schematic diagram of the internal structure of the ink cartridge accommodating chamber of the present invention. For the convenience of description, the installation direction of the ink cartridge 100 is defined as the front, and the removal direction is defined as the rear. When the ink cartridge 100 is installed forward, the upper, lower, left and right directions of the user's sight are respectively the upper, lower, left and right directions of the ink cartridge 100, and the ink cartridge accommodating chamber 200 located in the device has the same orientation as the ink cartridge 100.

[0039] The ink cartridge 100 includes a housing 1 for containing ink, and an ink outlet assembly 2, a chip assembly 3 and a locking assembly 4 arranged on the housing 1. The ink outlet assembly 2 is used to supply ink to a device, the chip assembly 3 is used to establish a communication connection with the device, and the locking assembly 4 is used to combine with the device to prevent the ink cartridge 100 from withdrawing backwards. As a whole, the ink cartridge 100 has a front surface 11 located in the front, a rear surface 12 located in the rear, an upper surface 13 located in the upper part, a lower surface 14 located in the lower part, a left surface 15 located in the left part, and a right surface 16 located in the right part. In the left-right direction, the housing 1 includes a bottom shell 1a and a cover 1b that are combined with each other, and an ink chamber 10 is formed between the two. The chip assembly 3 and the locking assembly 4 are both connected to the housing 1 in a manner that at least a part of them can move.

[0040] like Figure 1As shown, the housing 1 further includes a first sub-lower surface 141 connected to the front surface 11 and a sub-front surface 111 connected to the lower surface 14. The first sub-lower surface 141 is connected to the sub-front surface 111. In the up-down direction, the first sub-lower surface 141 and the sub-front surface 111 are both located between the front surface 11 and the lower surface 14. The ink outlet assembly 2 is located below the ink cartridge, close to the lower surface 14, and passes through the sub-front surface 111 to connect the ink cavity 10 and the outside of the ink cartridge. When the ink cartridge 100 is assembled, the lower surface 14 is a plane parallel to the front-to-back direction. This plane can be understood as, during the process of installing and removing the ink cartridge 100 along the front-to-back direction, this plane can make the movement direction of the ink cartridge 100 parallel to the front-to-back direction. Although the ink cartridge 100 also has the above-mentioned first sub-lower surface 141, the first sub-lower surface 141 still does not affect the lower surface 14 of the ink cartridge 100 being a plane parallel to the front-to-back direction.

[0041] The ink cartridge accommodating chamber 200 includes a mounting groove 201, a stylus holder 202 and a limiting rod 203. Along the front-to-back direction, the stylus holder 202 and the limiting rod 203 are respectively located in front of and behind the mounting groove 201. The stylus holder 202 is provided with a stylus chamber 202a facing downward and a blocking wall 202b facing rearward. The stylus 204 is disposed in the stylus chamber 202a and can move in the up-and-down direction.

[0042] [Ink outlet components]

[0043] Figure 3 is a schematic diagram of partial component decomposition of an ink cartridge involved in Embodiment 1 of the present invention; Figure 4 It is a three-dimensional view of the ink outlet assembly in the ink cartridge involved in the first embodiment of the present invention after some parts are hidden, and the view is cut along a plane parallel to the front-to-back direction and passing through the center line of the ink outlet.

[0044] like Figure 3 As shown, a portion of the upper surface 13 is located on the bottom shell 1a, and another portion of the upper surface 13 is located on the cover 1b. It is achievable that the entire upper surface 13 can be disposed on the bottom shell 1a, or the entire upper surface 13 can be disposed on the cover 1b. The ink chamber 10 is formed on the bottom shell 1a, and the ink chamber 10 has a top surface 131 located at the top and a second sub-lower surface 142 located at the bottom. In the up-down direction, the top surface 131 is located below the upper surface 13, and the second sub-lower surface 142 is located above the lower surface 14. The first sub-lower surface 141 and the second sub-lower surface 142 are formed as a portion of the bottom surface of the ink chamber 10, and the sub-front surface 111 is located between the first sub-lower surface 141 and the second sub-lower surface 142.

[0045] The ink outlet assembly 2 extends in the front-to-back direction and passes through the sub-front surface 111. Figure 3As shown, the ink outlet assembly 2 includes an ink outlet chamber 21, a piston 23 and an elastic member 24. The ink outlet chamber 21 has a center line C parallel to the front-to-back direction. The front end of the ink outlet chamber 21 forms an ink outlet 22 for supplying ink to the outside. The piston 23 keeps the ink outlet 22 sealed under the elastic force of the elastic member 24. The piston 23 is rod-shaped, including a rod body 233 and a sealing end 231 located at one end of the rod body 233. Before the ink cartridge 100 is installed, the sealing end 231 is forced to be pushed to a sealing position to seal the ink outlet 22 under the elastic force of the elastic member 24.

[0046] The ink cartridge 100 further includes an air guide cavity 5 for introducing atmosphere into the ink chamber 10. Before the ink cartridge 100 is installed, the air guide cavity 5 is sealed by an air guide film 18 (such as Figure 7 Before installing the existing ink cartridge 100, the user needs to tear off the air guide film 18 so that the air guide cavity 5 connects the inside and outside of the ink cartridge, and then install the ink cartridge 100 to the device. As the ink in the ink cavity 10 is sucked out, the air pressure in the ink cavity 10 decreases, and the external atmosphere is replenished into the ink cavity 10 through the conductor cavity 5, so that the pressure in the ink cavity 10 remains stable.

[0047] However, there is always a situation where users forget to tear off the air guide film 18, especially for users who use such a device for the first time, it is more likely to forget to tear off the air guide film 18. When the ink cartridge 100 without tearing off the air guide film 18 is installed in the device, it will cause the device to be unable to suck out the ink, thereby reducing the user's experience. For this reason, the ink cartridge 100 involved in the present invention is configured such that the air guide film 18 does not need to be torn off before the ink cartridge 100 is installed. The user only needs to install the ink cartridge 100 toward the device, and the air guide film 18 is opened during the installation process.

[0048] like Figure 3 and Figure 4As shown, the ink outlet chamber 21 is connected with the ink chamber 10 through the first connecting hole 25, so that the ink in the ink chamber 10 can be continuously replenished to the ink outlet chamber 21; the air guide chamber 5 is arranged adjacent to the ink outlet chamber 21, and the air guide chamber 5 is connected with the ink chamber 10 through the air guide channel, and the piston 23 extends from the ink outlet chamber 21 to the air guide chamber 5, and when the ink outlet 22 is opened, the piston 23 punctures the air guide membrane 18. Specifically, the air guide chamber 5 is connected to the ink outlet chamber 21 via the second connecting hole 26, and the other end of the rod body 233 is configured to be tapered to form a puncturing portion 232, which is located in the air guide chamber 5. As the ink suction needle (not shown) enters the ink outlet chamber 21 through the ink outlet port 22, the piston 23 is pushed backward by the ink suction needle, and the sealing end 231 reaches the open position from the sealing position, the ink outlet port 22 is opened, and the elastic member 24 is elastically deformed. The puncturing portion 232 punctures the air guide film 18, and the air guide chamber 5 is connected to the atmosphere through the air guide hole 51; when the ink cartridge 100 is taken out of the device, the elastic member 24 pushes the piston 23 to move forward, and the sealing end 231 returns to the sealing position from the open position. It can be seen that in the process of the piston 23 moving forward and backward, the movement trajectory of the piston 23 is limited by the second connecting hole 26.

[0049] As a second implementation method, the air guide chamber 5 and the ink storage chamber 21 can also be arranged at intervals, and connecting holes are respectively provided on the opposite surfaces of the two. The piston 23 passes through the connecting holes so that the puncture part 232 reaches the air guide chamber 5. As the piston 23 is pushed backward by the ink absorption needle, the puncture part 232 punctures the air guide membrane 18.

[0050] As a third implementation, the piercing portion 232 is formed as an independent component and is separated from the piston 23. At this time, the piston 23 and the piercing portion 232 are connected through an intermediate component, and the piercing portion 232 is triggered by the piston 23. Through the intermediate component, the piston 23 does not need to extend to the air guide cavity 5, thereby reducing the sealing requirements between the ink outlet cavity 21 and the air guide cavity 5. For example, magnetic parts are installed on both the piston 23 and the piercing portion 232, so that the piercing portion 232 can move with the piston 23 through the magnetic force. Movement; further, by adjusting the size and direction of the magnetic force, the size and direction of the force transmitted by the piston 23 to the puncturing portion 232 can also be controlled, so that the puncturing portion 232 can puncture the gas-conducting membrane 18 more accurately; further, the intermediate component can also be configured as follows: after the puncturing portion 232 punctures the gas-conducting membrane 18, the intermediate component moves the puncturing portion 232 away from the gas-conducting hole 51 to prevent the puncturing portion 232 from blocking the gas-conducting hole 51 and affecting the communication efficiency between the gas-conducting cavity 5 and the atmosphere.

[0051] Through the above description, the piston 23 can be considered as a triggering member, and the puncturing portion 232 can be considered as a triggered member. When the triggering member 23 is pushed by the ink absorbing needle, the sealing end 231 moves from the sealing position to the open position, and the triggering member 23 triggers the triggered member 232 to puncture the gas guide film 18, so that the gas guide cavity 5 is connected to the atmosphere.

[0052] [Chip components]

[0053] Figure 5 is a three-dimensional diagram of a chip involved in the present invention; Fig. 6A and Figure 6B 4 is a three-dimensional diagram of a chip mounting base according to the first embodiment of the present invention.

[0054] Continue as Figure 3 As shown, the chip assembly 3 is located below the ink cartridge, and includes a chip seat 31 and a chip 32 that are combined with each other. The chip 32 is fixedly mounted on the chip seat 31, and the chip seat 31 is movably combined with the shell 1. With the movement of the chip seat 31, the chip 32 has a first position and a second position described below. In the first position, the chip 32 is not in contact with the contact pin 204. At this time, the chip 32 has no communication connection with the device. In the second position, the chip 32 is in contact with the contact pin 204. At this time, the chip 32 has a communication connection with the device. The chip 32 does not need to be fixed, and the accuracy requirement of its installation position can be reduced.

[0055] like Figure 5 As shown, the chip 32 includes a substrate 321, and an electrical contact portion 322 and a storage portion 323 respectively located on both sides of the substrate 321, the electrical contact portion 322 is used to contact the contact pin 204, the storage portion 323 stores various parameter information of the ink cartridge 100, and the electrical contact portion 322 is electrically connected to the storage portion 323; further, the chip 32 also includes a power supply 324 arranged on the same side as one of the electrical contact portion 322 and the storage portion 323, when the chip 32 establishes a communication connection with the device, the power supply 324 supplies power to the chip 32; alternatively, the storage portion 323 can also be arranged on the same side as the electrical contact portion 322, as long as electrical connection is established between the two.

[0056] Commonly, the storage part 323 is arranged on the substrate 321, and the chip 32 can also be arranged so that the electrical contact part 322 is separately arranged from the substrate 321. In this case, the electrical contact part 322 and the storage part 323 are connected by a wire. In this way, it is only necessary to ensure that the electrical contact part 322 with a relatively smaller area is arranged on the chip holder 31, and the substrate 321, the storage part 322 and the power supply 324 with a relatively larger area can be placed in other positions according to the space design requirements of the ink cartridge 100.

[0057] like Fig. 6A and Figure 6BAs shown, the chip holder 31 includes a main body 311, a first support portion 312 and a second support portion 313 respectively located at the front and rear sides of the main body 311, and a force-bearing portion 315 protruding upward from the main body 311, the force-bearing portion 315 faces forward to form a force-bearing surface 315a, the first support portion 312 and the second support portion 313 are arranged at intervals along the front-to-back direction, and along the up-down direction, the force-bearing portion 315 and the two support portions are also arranged at intervals, the chip 32 / electrical contact portion 322 is installed between the force-bearing portion 315 and the support portion, the electrical contact portion 322 faces upward, and the storage portion 323 and / or the power supply 324 are located in the space between the first support portion 312 and the second support portion 313. Further, the main body 311 is also provided with an observation hole 314 opposite to the second support portion 313, so that the user can observe whether the substrate 321 has been supported by the second support portion 313 through the observation hole 314.

[0058] Figure 7 is a three-dimensional view of the ink cartridge involved in the first embodiment of the present invention after being cut along a plane parallel to the front-rear direction and passing through the center line of the ink outlet; Fig. 8A is a schematic diagram of a state after the ink cartridge involved in the first embodiment of the present invention is installed in a device; Figure 8B This is a three-dimensional view of the ink cartridge involved in the first embodiment of the present invention after being installed in the device, cut along a plane parallel to the front-to-back direction and passing through the center line of the ink outlet.

[0059] In the present invention, the chip holder 31 is configured to rotate around a rotation axis L. Preferably, the rotation axis L is located between the upper surface 13 and the top surface 131. In the up-down direction, at least a portion of the chip holder 31 is located between the upper surface 13 and the top surface 131. Figure 3 As shown, the chip holder 31 can rotate around the rotation axis L in the direction indicated by r and in the direction r' opposite to the direction r. Correspondingly, in the chip 32, at least the electrical contact portion 322 can rotate between the first position and the second position along the direction indicated by r / r' with the chip holder 31. In the following, the electrical contact portion 322 is arranged on the substrate 321, and the chip 32 is completely installed on the chip holder 31.

[0060] like Figure 7 As shown, before the ink cartridge 100 is installed, the chip holder 31 is located at the first position, along the up-down direction, the distance between the chip electrical contact portion 322 and the top surface 131 is h1, the sealing end 231 of the piston 23 is located at the sealing position, and the air guide hole 51 is sealed by the air guide film 18. In the front-to-back direction, the ink cartridge 100 is installed forward, as shown in FIG. Fig. 8A As shown, the ink cartridge 100 enters the ink cartridge accommodating chamber 200 along a direction parallel to the front-rear direction. Figure 8BAs shown, the piston 23 is pushed by the ink absorbing needle to move backward, the sealing end 231 moves from the sealing position to the opening position, the ink outlet 22 is opened, the elastic member 24 is elastically deformed, the air guide film 18 is punctured by the puncturing portion 232, the force-bearing surface 315a contacts the blocking wall 202b, the chip seat 31 drives the chip 32 to rotate from the first position to the second position along the direction shown by r, the electrical contact portion 322 enters the contact pin cavity 202a and contacts the contact pin 204, and the chip electrical contact portion 322 contacts the top surface 131 along the up and down direction. The distance between them is h2, satisfying h2>h1, that is, relative to the electric contact portion 322 located in the first position, the electric contact portion 322 located in the second position is farther away from the top surface 131, or, in other words, along the up and down direction, relative to the electric contact portion 322 located in the first position, the electric contact portion 322 located in the second position is farther away from the center line C of the ink outlet cavity 21; it can also be said that along the up and down direction, relative to the electric contact portion 322 located in the first position, the electric contact portion 322 located in the second position is farther away from the lower surface 14 of the ink cartridge.

[0061] On the contrary, when the ink cartridge 100 is taken out from the ink cartridge accommodating chamber 200, under the elastic restoring force of the elastic member 24, the piston 23 moves forward, and the sealing end 231 returns from the open position to the sealing position. At the same time, the force-bearing surface 315a is disengaged from the blocking wall 202b, and the chip holder 31 rotates from the second position to the first position along the direction indicated by r' under the action of its own gravity, and the electrical contact portion 322 is disengaged from the contact pin 204.

[0062] The chip holder 31 has the first position and the second position as described above. In the second position, the chip electrical contact portion 322 contacts the contact pin 204. When the chip holder 31 is configured to rotate around the rotation axis L, the plane where the electrical contact portion 322 is located will be tilted upward relative to the front-rear direction, such as Figure 8B As shown, the electrical contact portion 322 will contact the front surface of the contact pin. Compared with the existing electrical contact portion contacting the apex of the contact pin, the contact area between the electrical contact portion 322 and the contact pin in the present invention is larger. Preferably, when the chip holder 31 is in the first position, the plane where the chip electrical contact portion 322 is located is also inclined relative to the front-back direction, such as Figure 7 As shown, relative to the front-to-back direction, the chip holder 32 is tilted upward, and the electrical contact portion 322 is located at the front upper portion. Relative to the up-down direction, the force-bearing surface 315a is tilted forward, so that the force-bearing surface 315a is more likely to contact with the blocking wall 202b, and when the chip holder 31 rotates along the direction shown by r, the force-bearing surface 315a will not lose contact with the blocking wall 202b.

[0063] Combine the following Figure 3 , Figure 7 and Figure 8B It will be described how the chip holder 31 is held in a state of being tilted with respect to the front-rear direction.

[0064] like Figure 7 As shown in the partial R2 in the middle, the distance from the front end of the chip holder 31 to the rotation axis L is much larger than the distance from the rear end of the chip holder 31 to the rotation axis L. In a natural state, the chip holder 31 has a tendency to rotate along the r' direction. When the chip 32 is installed on the chip holder 31, most of the weight of the chip 32 is located in front of the rotation axis L. Therefore, the chip assembly 3 as a whole has a tendency to rotate along the r' direction.

[0065] In order to keep the chip holder 31 located at the first position in the above-mentioned inclined state, the housing 1 is further provided with a holding portion, and the chip holder 31 is provided with a held portion. Figure 3 As shown, the holding portion includes a first holding portion 134 for holding the chip holder 31 in a first position and a second holding portion 135 for holding the chip holder 31 in a second position, the held portion includes a first held portion 311a for contacting the first holding portion 134 and a second held portion 311b for contacting the second holding portion 135, the first held portion 311a and the second held portion 311b are arranged adjacent to each other, the first holding portion 134 and the second holding portion 135 are also arranged adjacent to each other, when the chip holder 31 is installed, the first holding portion 134 and the second holding portion 135 enter the area between the first held portion 311a and the second held portion 311b, the first holding portion 134 abuts against the first held portion 311a, so that the chip holder 31 is held in a first position tilted upward relative to the front-rear direction, as shown in FIG. Figure 8B As shown in the partial R3, when the force-bearing surface 315a is blocked by the blocking wall 202b and the chip holder 31 rotates around the rotation axis L in the direction shown by r, the first retaining portion 134 is disengaged from the first retained portion 311a until the chip holder 31 reaches the second position. At this time, the second retaining portion 135 is in contact with the second retained portion 311b, and the chip holder 31 is retained in the second position.

[0066] It can be known from this that the upward tilt angle of the chip holder 31 relative to the front-to-back direction when the chip holder 31 is in the first position can be determined by the abutment position of the first retaining portion 134 and the first retained portion 311a. Similarly, the upward tilt angle of the chip holder 31 relative to the front-to-back direction when the chip holder 31 is in the second position can be determined by the abutment position of the second retaining portion 134 and the second retained portion 311b. At least one of surface contact, line contact and point contact can be formed between the first retaining portion 134 and the first retained portion 311a and between the second retaining portion 135 and the second retained portion 311b. In the present invention, surface-to-surface contact is formed between the first retaining portion 134 and the first retained portion 311a, and surface-to-line contact is formed between the second retaining portion 135 and the second retained portion 311b. The first retaining portion 134 is an inclined surface inclined backward relative to the front-to-back direction, and the second retaining portion 135 is a plane parallel to the front-to-back direction.

[0067] Furthermore, the retaining portion also includes a third retaining portion 136 arranged adjacent to the second retaining portion 135. When the chip holder 31 is located in the first position, in addition to the first retaining portion 134 contacting the first retained portion 311a, the third retaining portion 136 also maintains contact with the main body 311, and the chip holder 31 can be more stably positioned in the first position.

[0068] Furthermore, the chip assembly 3 can also be provided with a retaining member such as a tension spring or a compression spring combined with the chip holder 31, so that the chip holder 31 is maintained in an upwardly inclined posture relative to the front-to-back direction in the first position, and when the chip holder 31 moves from the first position to the second position, the retaining member is elastically deformed, and when the force-bearing surface 315a is out of contact with the blocking wall 202b, the chip holder 31 will move from the second position to the first position under the action of the elastic reset force of the retaining member.

[0069] The chip holder 31 can also move between the first position and the second position in a translational manner. For example, a force conversion mechanism is arranged between the force-bearing portion 315 and the support portion. When the force-bearing surface 315a contacts the blocking wall 202b, the force conversion mechanism can convert the force received by the force-bearing surface 315a into a force applied to the support portion in the up and down directions, thereby forcing the chip holder 31 to move from the first position to the second position. The electrical contact portion 322 located in the chip holder 31 is able to contact the contact pin 204. When the force-bearing surface 315a is out of contact with the blocking wall 202b, the chip holder 31 returns to the first position from the second position under the action of its own gravity. In this embodiment, the chip holder 31 can be arranged in an inclined manner or in a horizontal manner.

[0070] The above describes the manner in which the force-bearing surface 315a contacts the blocking wall 202b to cause the chip holder 31 to move. However, according to the technical idea of ​​the present invention, the force-bearing surface 315a can also be set at other positions of the chip holder for contacting other positions of the ink cartridge accommodating cavity 200. For example, the force-bearing surface 315a is located on the left and right sides of the main body 31. During the installation process of the ink cartridge 100, the force-bearing surface 315a contacts the left and right sides of the ink cartridge accommodating cavity 200, thereby forcing the chip holder 31 to move between the first position and the second position.

[0071] [Lock components]

[0072] As described above, when the ink cartridge 100 is installed in the ink cartridge accommodating chamber 200, the ink absorbing needle abuts against the piston 23 to cause elastic deformation of the elastic member 24, which will cause the ink cartridge 100 to have a tendency to move backward. To prevent the ink cartridge 100 from being pushed backward, the locking assembly 4 will be combined with the limit rod 203 in the ink cartridge accommodating chamber 200, so that the ink cartridge 100 is maintained in a predetermined installation position.

[0073] like Figure 4 , Figure 7 and Figure 8B As shown, the locking assembly 4 includes a base 41 connected to the shell 1 and a locking piece 42 arranged on the base 41, and at least one of the base 41 and the locking piece 42 is configured to be movable in the up and down directions; when the ink cartridge 100 is installed toward the ink cartridge accommodating chamber 200, the locking assembly 4 is higher than the limiting rod 203 in the up and down directions. Therefore, during the installation process of the ink cartridge 100, the locking assembly 4 will interfere with the limiting rod 203 and force at least one of the base 41 and the locking piece 42 to move downward until the limiting rod 203 passes over the highest point of the locking assembly 4, and then, at least one of the base 41 and the locking piece 42 moves upward again to the front of the limiting rod 203, and finally, the ink cartridge 100 is prevented from withdrawing backwards by the abutment between the locking piece 42 and the limiting rod 203.

[0074] Preferably, the base 41 is formed integrally with the bottom shell 1a, and the base 41 extends upward from the upper surface 13. The locking piece 42 is configured to be elastic and movable in the up and down directions. The locking piece 42 is an elastic rubber installed above the base 41, and the elastic rubber is installed in an arc shape. Therefore, when the limit rod 203 contacts the elastic rubber, the inclined surface located in front of the elastic rubber can guide the limit rod 203. As the limit rod 203 passes over the apex of the elastic rubber, when the ink cartridge 100 is installed to the predetermined position, the inclined surface located behind the elastic rubber abuts against the limit rod 203.

[0075] As a simpler implementation, the locking assembly 4 can also be configured to be non-elastic. In this case, the locking assembly 4 forms a hard contact with the limiting rod 203. For the ink cartridge 100, along the up-down direction, below the ink cartridge 100, the ink absorbing needle applies a backward thrust to the ink cartridge 100, and above the ink cartridge 100, the limiting rod 203 and the locking assembly 4 squeeze the ink cartridge 100 so that the ink cartridge 100 is subjected to a forward thrust. Figure 8B As shown, the ink cartridge 100 as a whole will have a tendency to rotate downward and forward around the contact point between the ink absorbing needle and the piston 23 as the center of the circle. During the operation of the device, the ink cartridge 100 may shake.

[0076] However, when at least one of the base 41 and the locking member 42 in the locking assembly 4 is configured to be movable in the up and down directions, not only can the resistance encountered by the ink cartridge 100 during the installation process be reduced, but also when the ink cartridge 100 is installed to the predetermined position, the limiting rod 203 squeezes the locking member 42 so that the ink cartridge 100 is subjected to a downward squeezing force, and the tendency of the ink cartridge 100 to rotate downward and forward can be prevented.

[0077] Further, such as Figure 3 , Figure 4 and Figure 7As shown, the ink cartridge 100 further includes a hook portion 133 disposed at the rear of the housing 1. Along the front-to-back direction, a recess 132 is formed between the hook portion 133 and the locking assembly 4. The locking assembly 4, the recess 132 and the hook portion 133 are arranged in sequence from front to back. When the ink cartridge 100 needs to be taken out, the recess 132 forms a receiving portion for accommodating the user's fingers. By applying a backward pulling force to the hook portion 133, the limiting rod 203 again passes over the highest point of the locking assembly 4, and the ink cartridge 100 is withdrawn backward under the elastic restoring force of the elastic member 24.

[0078] Embodiment 2

[0079] Fig. 9 is a three-dimensional diagram of an ink cartridge according to a second embodiment of the present invention; Fig.10 is an exploded schematic diagram of some components of the ink cartridge involved in the second embodiment of the present invention; Fig.11 It is a three-dimensional diagram of the movable parts in the ink cartridge involved in the second embodiment of the present invention.

[0080] In this embodiment, the chip 32 is installed in a rotatable manner. Fig. 9 and Fig.10 As shown, the chip assembly 3 includes a movable member 33 and a chip 32. Along the front-to-back direction, the movable member 33 is located in front of the chip 32. The chip 32 and the movable member 33 are both rotatably mounted on the housing 1. Fig.11 As shown, the movable member 33 includes a movable plate 331, and a force plate 333 and a forced push plate 332 combined with the movable plate 331. Preferably, the force plate 333 has an inclined contact surface 3331, which is inclined from the lower front to the upper rear, and the forced push plate 332 has an inclined forced push surface 3321, which is inclined from the lower rear to the upper front. The movable member 33 can move in either rotation or translation. When the movable member 33 moves in rotation, the movable member 33 also includes a rotating portion 334 combined with the movable plate 331.

[0081] Fig. 12A is a schematic diagram of the relative positions of the chip assembly and the ink cartridge accommodating cavity before the ink cartridge involved in the second embodiment of the present invention is installed; Fig. 12B It is a schematic diagram of the relative positions of the chip assembly and the ink cartridge accommodating cavity after the ink cartridge involved in the second embodiment of the present invention is installed.

[0082] like Fig. 12A As shown, the chip 32 also includes a protrusion 325 arranged on the substrate 321, and the protrusion 325 cooperates with a groove (not shown) arranged on the housing 1, so that the chip 32 can rotate around the protrusion 325, wherein the protrusion 325 is arranged closer to the rear end of the substrate 321, so that most of the weight of the chip 32 is located in front of the protrusion 325, so that the chip 32 has a rotation around Fig. 12AThe tendency to rotate in the opposite direction to the direction shown by r2.

[0083] Before the ink cartridge 100 is installed, the chip 32 is located at the first position, and the chip 32 is in contact with the movable member 33 and is held in the first position. Fig. 12A The ink cartridge 100 is tilted upward relative to the front-to-back direction. In the vertical direction, the highest point of the chip assembly 3 is lower than the lowest point of the stylus cavity 202. In this way, when the ink cartridge 100 is installed toward the ink cartridge accommodating cavity 200, the chip assembly 3 will not interfere with the stylus cavity 202. When the contact surface 3331 of the movable member 33 abuts against the abutment portion 205 in the ink cartridge accommodating cavity 200, as the ink cartridge 100 continues to be pushed forward, the abutment portion 205 applies a force to the contact surface 3331, forcing the movable member 33 to rotate around the rotating portion 334 in the direction indicated by r1, and the pushing portion 332 pushes the chip substrate 321, so that the substrate 321 rotates around the protrusion 325 in the direction indicated by r2, and the electrical contact portion 322 gradually moves away from the top surface 131 / ink outlet 22 until the chip 32 reaches Fig. 12B The second position is shown.

[0084] like Fig. 12B As shown, the force-bearing portion 333 abuts against the abutting portion 205, the pushing surface 3321 abuts against the substrate 321, and the electrical contact portion 322 contacts the front surface of the contact pin 204. When the ink cartridge 100 is taken out backward, the force-bearing portion 333 no longer abuts against the abutting portion 205. Under the action of the gravity of the movable member 33 and the gravity of the chip 32, the movable member 33 rotates around the rotating portion 334 in the opposite direction of the direction indicated by r1. At the same time, the chip 32 also rotates around the protrusion 325 in the opposite direction of the direction indicated by r2. The electrical contact portion 322 is out of contact with the contact pin 204, and the chip 32 returns from the second position to the first position.

[0085] Preferably, a reset member can be further provided between the movable member 33 and the shell 1 or between the chip 32 and the shell 1. When the chip 32 is located at the second position, the reset member accumulates potential energy. When the force-bearing portion 333 no longer abuts against the abutting portion 205, the reset member releases the potential energy, and the movable member 33 and the chip 32 can quickly return from the second position to the first position; alternatively, the positions of the protrusion 325 and the groove are interchangeable, that is, the protrusion 325 is provided on the shell 1, and the groove combined with the protrusion 325 is provided on the substrate 321. Therefore, for the chip 32, the position where the protrusion 325 or the groove is located is the positioning portion of the chip 32, and the chip 32 can rotate around the positioning portion.

[0086] The above describes that the movable part 33 moves in a rotational manner. It is achievable that the movable part 33 can also be set to move in a translational manner along the front-to-back direction. During the installation of the ink cartridge 100, the force-bearing portion 333 is abutted by the abutting portion 205, and the movable part 33 moves backward and pushes the chip substrate 321 upward, so that the chip 32 reaches the second position where the electrical contact portion 321 contacts the contact pin 204. When the force-bearing portion 333 is not abutted against the abutting portion 205, the movable part 33 moves in a translational manner from back to front under the action of, for example, the elastic force of the elastic member or the magnetic force of the magnetic member, and the chip 32 returns from the second position to the first position.

[0087] Embodiment 3

[0088] Fig.13 It is a schematic diagram of the relative positions of the chip assembly and the ink cartridge accommodating cavity after the ink cartridge involved in the third embodiment of the present invention is installed.

[0089] This embodiment is a further improvement on the second embodiment. Fig.13 As shown, the force-bearing portion 333 is abutted by the bottom surface 206 of the ink cartridge accommodating chamber 200. After the ink cartridge 200 is installed, the force-bearing portion 333 is entirely located below the bottom surface 206, and the state of the movable part 33 is more stable. Furthermore, in this embodiment, the ink cartridge 100 also includes a reset member 19 located between the chip 32 and the shell 1. Preferably, the reset member 19 is an elastic component such as a compression spring / tension spring, a rubber block, etc. In this embodiment, more preferably, the reset member 19 is a rubber block.

[0090] like Fig.13 As shown, the rubber block 19 includes an upper portion 19a and a lower portion 19b which are combined with each other. Through the planar bottom surface 193 located below the lower portion 19b, the rubber block 19 can be stably placed on the top surface 131 of the ink chamber. Along the front-to-back direction, the maximum dimension of the upper portion 19a is smaller than the maximum dimension of the lower portion 19b. Preferably, the bottom surface 193 has the largest dimension in the front-to-back direction, which is beneficial for the rubber block 19 to be always stably maintained on the top surface 131, or to remain stable when the rubber block 19 contacts the top surface 131.

[0091] Furthermore, the outer surface of the upper portion 19a is arc-shaped to facilitate receiving the force, and a first elongated hole / first elliptical hole 191 extending in the up-down direction is arranged on the upper portion 19a, and a second elongated hole / second elliptical hole 192 extending in the front-to-back direction is arranged on the lower portion 19b. The rubber block 19 is combined with the chip 32 through the first elongated hole / first elliptical hole 191, specifically, the protrusion 325 passes through the first elongated hole / first elliptical hole 191.

[0092] Before the ink cartridge 100 is installed, the relative positions of the chip 32 and the rubber block 19 are not restricted, and the two can contact each other or remain separated from each other. The chip 32 is in the first position where no communication connection is established between the electrical contact portion 322 and the contact pin 204. When the ink cartridge 100 is installed, the bottom surface 206 of the ink cartridge accommodating chamber presses the force-bearing portion 333, and the pushing portion 332 pushes the substrate 321, so that the end of the chip 32 provided with the electrical contact portion 322 moves upward until the electrical contact portion 322 contacts the contact pin 204. Accordingly, the side where the protrusion 325 is located moves downward, and the rubber block 19 is compressed. At this time, the chip 32 is in the second position where a communication connection is established between the electrical contact portion 322 and the contact pin 204. When the ink cartridge 100 is taken out, the force-bearing portion 333 is no longer pressed by the bottom surface 206 of the ink cartridge accommodating chamber, and the chip 32 returns to the first position from the second position under the action of its own gravity or / and the restoring force of the rubber block 19.

[0093] As described above, the first elongated hole / first elliptical hole 191 extends in the up-down direction, and thus, the upper portion 19a can have a larger deformation amount in the up-down direction. The second elongated hole / second elliptical hole 192 extends in the front-to-back direction, and the deformation amount of the lower portion 19b in the up-down direction is smaller than that of the upper portion 19a, but the lower portion 19b can ensure that the rubber block 19 is stably in contact with the top surface 131 of the ink chamber, thereby ensuring that the rubber block 19 does not shift when subjected to the pressure of the chip 32.

[0094] For simplification, the second elongated hole / second elliptical hole 192 can also be eliminated. In this case, the rubber block 19 only retains the first elongated hole / first elliptical hole 191. Similarly, in the vertical direction, the deformation of the upper part 19a is greater than that of the lower part 19b; or, the first elongated hole / first elliptical hole 191 is eliminated, and the rubber block 19 only retains the second elongated hole / second elliptical hole 192. In this case, in the vertical direction, the deformation of the upper part 19a is less than that of the lower part 19b. Regardless of how the shapes of the upper part 19a and the lower part 19b of the rubber block 19 are changed, and how the shape of the elongated hole / elliptical hole is changed, the bottom surface 193 of the lower part 19b is preferably a plane.

[0095] It will be understood by those skilled in the art that the bottom surface 193, instead of being set as a plane, can also be set as a friction surface with greater friction, or the lower portion 19b can be set as a suction cup-like structure, so that the rubber block 19 can remain without displacement relative to the top surface 131 of the ink chamber when subjected to the force of the chip 32.

[0096] Embodiment 4

[0097] Fig.14 It is a schematic diagram of the relative positions of the chip assembly and the ink cartridge accommodating cavity before the ink cartridge involved in the fourth embodiment of the present invention is installed.

[0098] Different from the second and third embodiments, when the chip 32 in this embodiment is located at the first position, the movable part 33 is not in contact with the chip 32, and when the chip 32 is located at the second position, the movable part 33 is in contact with the chip 32. That is to say, the chip 32 in this embodiment is balanced by its own structural arrangement on the front and rear sides of the protrusion 325. The "balance" here means that the chip 32 can maintain a stationary state in the first position only by relying on its own protrusion 325 without the help of external components. At this time, except for the protrusion 325 that contacts the shell 1, other parts of the chip 32 do not contact the shell 1.

[0099] For example, if it is necessary to keep the chip 32 basically parallel to the front-to-back direction in the first position, the chip 32 can be arranged so that the mass between the front end of the chip 32 and the protrusion 325 along the front-to-back direction is equal to the mass between the rear end of the chip 32 and the protrusion 325. If it is necessary to keep the chip 32 inclined with respect to the front-to-back direction in the first position and the front end provided with the electrical contact 322 is inclined upward, the chip 32 can be arranged so that the mass between the front end of the chip 32 and the protrusion 325 along the front-to-back direction is less than the mass between the rear end of the chip 32 and the protrusion 325.

[0100] In this embodiment, the chip 32 further includes a counterweight 326 for adjusting the mass on both sides of the protrusion 325. According to the chip posture requirement at the first position, the counterweight 326 can be installed on the substrate 321 or the battery 324, such as Fig.14 As shown, the chip 32 is located in the first position, and the front end where the electrical contact portion 322 is located is tilted upward, and the counterweight 326 is installed behind the protrusion 325, as shown in FIG. Fig.14 As shown in the partial portion R4 , a gap g is formed between the substrate 321 and the pushing portion 332 of the movable member, and the chip 32 is held in a posture where the front end is tilted upward by the protrusion 325 .

[0101] When the ink cartridge 100 is installed, the force-bearing portion 333 is abutted by the abutting portion 205, the pushing portion 332 begins to contact the substrate 321, and the chip 32 rotates from the first position to the second position until the electrical contact portion 322 contacts the contact pin 204. When the ink cartridge 100 is taken out backwards, the force-bearing portion 333 is no longer abutted by the abutting portion 205, the movable part 33 gradually returns to its original position, and the chip 32 gradually returns to the first position from the second position under the action of its own gravity.

[0102] Compared with the chip assembly 3 in the above-mentioned embodiment, the chip assembly 3 in the present embodiment is simplified to include only the chip 32. Not only the structure of the chip assembly 3 is simplified, but correspondingly, the structure of the ink cartridge 100 is also simplified. On the other hand, in the first position, the chip 32 does not contact the movable part 33. Before the force-bearing part 333 abuts the abutting part 205, even if the movable part 33 slightly interferes with the components in the ink cartridge accommodating chamber 200, causing the movable part 33 to move, the chip 32 will not move to the position interfering with the contact pin seat 202. Therefore, the dimensional accuracy requirement of the movable part 33 can be reduced.

[0103] Furthermore, the chip 32 in this embodiment can also be configured such that, when in the first position, the chip 32 still achieves the above-mentioned balance through its own structural setting, but the pushing portion 332 is infinitely close to the substrate 321. Visually, the two are in contact, but when the pushing portion 332 is moved away from the substrate 321, the chip 32 still remains stationary; this structural setting can reduce the moving distance of the pushing portion 332.

[0104] Embodiment 5

[0105] Fig.15 It is a schematic diagram of the decomposition of some components of the ink cartridge involved in the fifth embodiment of the present invention.

[0106] The chip assembly 3 in this embodiment still includes a chip 32 and a chip seat 31 that are combined with each other, wherein the chip seat 31 is fixedly arranged on the housing 1, and a guide groove 316 that is inclined upward relative to the front-back direction is arranged on the chip seat 31, and the chip 32 can slide along the guide groove 316 through a protrusion / positioning portion 327 arranged therein. Further, the chip assembly 3 also includes a movable member 34 that is movably combined with the chip 32, such as Fig.15 As shown, an opening 326 is provided on the base plate 32, and the movable part 34 includes an intermediate body 341, a force-bearing part 342, a lifting rod 343 and a rotating shaft 344. The lifting rod 343 passes through the opening 326, and there is a clearance fit between the two, that is, the minimum size of the opening 326 is larger than the maximum size of the lifting rod 343, and the rotating shaft 344 is rotatably matched with the shell 1.

[0107] When the ink cartridge 100 is installed, the blocking wall 202b abuts against the force-bearing portion 342, and the lifting rod 343 rotates around the rotating shaft 344 along with the movable member 34. At the same time, the lifting rod 343 pushes the substrate 321 to slide along the guide groove 316, so that the chip 32 moves from the first position to the second position.

[0108] When the ink cartridge 100 is taken out, the blocking wall 202b no longer abuts against the force-bearing portion 342. Under the action of the gravity of the chip 32 itself and the gravity of the movable part 34, the movable part 34 rotates in the opposite direction around the rotating shaft 344 again. At the same time, the lifting rod 343 drives the base plate 321 to slide along the guide groove 316, so that the chip 32 returns to the first position from the second position.

[0109] Embodiment 6

[0110] Fig.16 is an exploded schematic diagram of some components of an ink cartridge according to a sixth embodiment of the present invention; Fig.17 is a three-dimensional diagram of a chip holder in an ink cartridge according to a sixth embodiment of the present invention; Fig.18 It is a schematic diagram of the relative positions of the chip assembly and the ink cartridge accommodating cavity after the ink cartridge involved in the sixth embodiment of the present invention is installed.

[0111] In this embodiment, the chip assembly 3 still includes a chip seat 31 and a chip 32 that are combined with each other, wherein the chip 32 is fixedly mounted on the chip seat 31, the chip seat 31 is formed integrally with the housing 1, and the chip seat 31 can move relative to the housing 1. Fig.16 and Fig.17 As shown in the partial R5, the chip holder 31 includes a main body 311, a force-bearing portion 315 and a chip mounting portion 317 arranged on the main body 311, and a connecting portion 318 connecting the main body 311 and the shell 1. The force-bearing portion 315 is used to abut against the ink cartridge accommodating cavity 200 to receive the force. The connecting portion 318 is provided with a recessed portion 319 extending in the left and right directions. Through the recessed portion 319, the main body 311 can swing in the front and rear directions relative to the shell 1.

[0112] like Fig.18 As shown, when the force-bearing portion 315 abuts against the blocking wall 202b, the main body 311 rotates as a whole around the recessed portion 319, the connecting portion 318 is deformed, and the side where the electrical contact portion 322 is located swings upward until the electrical contact portion 322 contacts the contact pin 204, and the chip 32 moves from the first position to the second position; when the force-bearing portion 315 is out of contact with the blocking wall 202b, the connecting portion 318 is reset, causing the main body 311 to rotate in the opposite direction around the recessed portion 319 as a whole, and the chip 32 returns from the second position to the first position.

[0113] The above embodiment describes that after the chip 32 reaches the second position from the first position, the electrical contact portion 322 contacts the front surface of the contact pin 204. However, by setting the structure of the electrical contact portion 322 or the structure of the chip 32, when the chip 32 reaches the second position, the electrical contact portion 322 contacts the rear surface of the contact pin 204 or the electrical contact portion 322 contacts the front surface and the rear surface of the contact pin 204 at the same time. For example, the electrical contact portion 322 is set as a protrusion protruding upward and backward. In this case, the electrical contact portion 322 can contact the rear surface of the contact pin 204; or the electrical contact portion 322 is set to be U-shaped. In this case, the electrical contact portion 322 can contact the front surface and the rear surface of the contact pin 204 at the same time. Compared with the electrical contact portion in the prior art that contacts the lower tip of the contact pin 204, the electrical contact portion 322 in the present invention has a larger contact area with the contact pin 204, which is more conducive to maintaining a stable electrical connection between the electrical contact portion 322 and the contact pin 204.

[0114] Based on the inventive concept of the present invention, the chip seat body 311 in Example 1 and Example 6 can also be regarded as a movable part in the respective embodiments, with the same function as the movable part in Example 2 to Example 5. The chip seat body 311 is configured to be movable relative to the shell 1, and the chip seat body 311 is used to receive a force from the ink cartridge accommodating chamber 200, thereby making the electrical contact part 322 reach the second position from the first position, and when the force is removed, the electrical contact part 322 returns to the first position from the second position.

[0115] The beneficial effects of the present invention are as follows:

[0116] The lower surface 14 is a plane, and the ink cartridge 100 can be installed and removed in a direction parallel to the front-rear direction. During the installation and removal process, the movement trajectory of the ink cartridge 100 is simpler, and accordingly, the structures of the device and the ink cartridge 100 can be simplified.

[0117] A puncture portion 232 which can be linked to the piston 23 is provided in the air guide cavity 5. During the installation process of the ink cartridge 100, when the ink suction needle pushes the piston 23 to move backward, the puncture portion 232 punctures the air guide film 18 used to seal the air guide hole 51, so that the ink cavity 10 is connected with the atmosphere, eliminating the need for the user to tear off the air guide film before installing the ink cartridge.

[0118] Preferably, one end of the piston 23 is formed as a sealing end 231 for sealing the ink outlet, and the other end is formed as a puncturing portion 232 that can puncture the air guide membrane 18, that is, the piston 23 and the puncturing portion 232 are formed integrally, and when the piston 23 moves backward, the air guide membrane 18 is directly punctured by the piston 23, and the thrust applied to the piston 23 by the ink absorbing needle can be effectively transmitted to the puncturing portion 232. At the same time, the structure of the ink cartridge will become simpler.

[0119] When the ink outlet chamber 21 equipped with the piston 23 and the air guide chamber 5 are spaced apart from each other, through holes sealed by seals are respectively provided on the opposite surfaces of the two. Before the ink cartridge 100 is installed, the ink outlet chamber 21 and the air guide chamber 5 are isolated from each other, and the piston 23 is entirely located in the ink outlet chamber 21. When the ink cartridge 100 is installed, the ink suction needle pushes the piston 23 to move backward, and the piercing portion 232 passes through the seal to reach the air guide chamber 5 and pierce the air guide film 18. During the movement of the piston 23, the seal contacts the outer surface of the piston rod body 233, and the sealing of the ink outlet chamber 21 and the air guide chamber 5 is guaranteed.

[0120] Furthermore, the ink outlet chamber 21 is arranged adjacent to the air guide chamber 5, and the two are connected through the second connecting hole 26. The seal is installed on the second connecting hole 26, and the piston 23 passes through the second connecting hole 26, so that the puncture portion 232 is located in the air guide chamber 5. At the same time, the seal contacts the outer surface of the piston rod body 233, and the ink outlet chamber 21 and the air guide chamber 5 remain isolated from each other; when the piston 23 moves backward, the puncture portion 232 can puncture the air guide membrane 18 faster.

[0121] Furthermore, the piston 23 and the puncturing portion 232 are formed separately, and the two are connected by an intermediate component. By adjusting the intermediate component, the force and direction of the puncturing portion 232 puncturing the gas-conducting film 18 can be adjusted. At the same time, the moment when the gas-conducting film 18 is punctured can be delayed according to needs. For example, the user only needs to install the ink cartridge 100 to the device, and does not need to perform imaging operations immediately after installation. The gas-conducting film 18 does not need to be punctured during the installation of the ink cartridge 100. At this time, the force of the ink-absorbing needle pushing the piston 23 to move backward can be stored by the intermediate component. When the ink-absorbing needle starts to suck ink from the ink outlet cavity 21, the flow of ink causes the intermediate component to release the force, thereby causing the puncturing portion 232 to puncture the gas-conducting film 18. At this time, the puncturing portion 232 can also be considered to be triggered by the piston 23. Based on the technical idea of ​​the present invention, when the piston 23 deviates from the sealing position, the gas-conducting film 18 is punctured, and the timing of the gas-conducting film 18 being punctured can be set according to needs.

[0122] like Figure 4 , Figure 7 and Figure 8B As shown, along the up-down direction, the air guide cavity 5 is located in the cavity 17 between the second sub-lower surface 142 and the lower surface 14, and the air guide cavity 5 does not exceed the lower surface 14. During the installation and removal of the ink cartridge 100, the air guide cavity 5 will not interfere with the device, and the air guide film 18 can be effectively protected. Along the front-to-back direction, the air guide cavity 5 and the ink outlet cavity 21 are arranged close to the front, and are located behind the air guide cavity 5. The cavity 17 forms a space that allows the puncture portion 232 to move.

[0123] The chip holder 31 is configured to be movable between a first position and a second position. In the chip 32, at least the electrical contact portion 322 is mounted on the chip holder 31 and can move with the chip holder 31 between the first position and the second position. In the first position, the electrical contact portion 322 does not contact the contact pin 204 in the device. In the second position, the electrical contact portion 322 contacts the contact pin 204, and in the up-down direction, the electrical contact portion 322 in the second position is in contact with the top surface 131 of the ink chamber / the center line C of the ink outlet chamber 21 / the bottom surface of the ink cartridge. The distance between the surfaces 14 is greater than the distance between the electrical contact portion 322 in the first position and the top surface 131 of the ink chamber / the center line C of the ink outlet chamber 21 / the lower surface 14 of the ink cartridge. On the one hand, during the installation of the ink cartridge 100, the chip seat 31 / the electrical contact portion 322 will not interfere with the device. On the other hand, when the device is working, the electrical contact portion 322 is as far away from the ink outlet chamber 21 as possible in the up and down directions. The vibration generated when the ink suction needle absorbs ink from the ink outlet chamber 21 is not easy to affect the contact between the electrical contact portion 322 and the contact needle.

[0124] In addition, at least the electrical contact portion 322 can move along with the chip holder 31 between the first position and the second position, and thus, the requirement for the mounting position accuracy of the electrical contact portion 322 on the chip holder 31 can be reduced.

[0125] The electrical contact portion 322 is located in front of the chip holder 31. When the chip holder 31 rotates, the rotation axis L of the chip holder 31 is closer to the rear end of the chip holder 31. Under the action of the chip holder 31's own gravity, the chip holder 31 has a rotation axis L along the Figure 4 Thus, when the force-bearing surface 315a is out of contact with the blocking wall 202b, the chip holder 31 automatically moves from the second position to the first position around the rotation axis L in the direction shown by r' under the action of its own gravity. It can be seen that this arrangement allows the chip holder 31 to move from the second position to the first position without relying on external forces, and the structure of the chip assembly 3 can be simplified.

[0126] The top surface 131 of the bottom shell is lower than the upper surface 13 of the shell body. Figure 7 As shown, at least in the first position, at least a portion of the chip holder 31 is located between the top surface 131 and the upper surface 13. When the ink cartridge 100 is assembled, the chip holder 31 can be protected by the shell 1 and is only exposed from above the shell 1. The chip holder 31 and the electrical contact portion 322 / chip 32 mounted on the chip holder can be effectively protected by the shell 1, reducing the probability of damage to the electrical contact portion 322 / chip 32.

[0127] When the chip holder 31 is located at the first position, the chip holder 31 is tilted upward relative to the front-to-back direction, and accordingly, the electrical contact portion 322 located on the chip holder 31 is also tilted upward relative to the front-to-back direction. In this way, no matter whether the chip holder 31 adopts a rotational mode or a translational mode, the electrical contact portion 322 can contact the contact pin 204 more quickly. Compared with the existing arrangement of the electrical contact portion 322 parallel to the front-to-back direction, when the distance moved by the chip holder 31 in the up-and-down direction is a certain value, it is obvious that when the chip holder 31 is located at the second position, the electrical contact portion 322 in the present invention contacts the contact pin 204 more closely.

[0128] The locking piece 42 is made of elastic rubber, and a certain friction force can be generated between the limit rod 203 and the elastic rubber 42, which is helpful to overcome the backward thrust of the ink suction needle on the piston 23 and prevent the ink cartridge 100 from being pushed backward. At the same time, the elasticity of the elastic rubber 42 is utilized to reduce the resistance of the limit rod 203 to the ink cartridge 100 during the installation and removal of the ink cartridge 100; in addition, after the ink cartridge 100 is installed to the predetermined position, the limit rod 203 applies a downward force to the elastic rubber 42, which can prevent the ink cartridge 100 from rotating downward and forward with the contact point between the ink suction needle and the piston 23 as the center.

[0129] In the up-down direction, the locking assembly 4 and the chip assembly 3 are both located above and away from the ink outlet assembly 2. In the front-to-back direction, the chip assembly 3 is closer to the locking assembly 4 than the ink outlet assembly 2. The vibration generated by the ink outlet assembly 2 during operation is less likely to be transmitted to the chip assembly 3 and the locking assembly 4. Even if there is vibration transmitted from the bottom to the top of the ink cartridge, the locking assembly 4 can effectively suppress the vibration, thereby ensuring a stable electrical connection between the chip assembly 3 and the device; in the front-to-back direction, the ink outlet assembly 2 and the chip assembly 3 are both located in front of the locking assembly 4. When the ink cartridge is installed, the chip assembly 3 and the locking assembly 4 will not be affected by external interference, especially for the chip assembly 3. In the first position, the chip assembly 3 is only exposed through the top of the ink cartridge, and the user's hand will not touch the electrical contact portion 322. In the second position, the chip assembly 3 is still blocked by the locking assembly 4, and the user's hand or external parts still will not touch the electrical contact portion 322, and the working stability of the chip 32 is guaranteed.

Claims

1. A chip, which is used to be mounted on a housing of an ink cartridge and can be installed into an ink cartridge receiving cavity provided with a contact pin along with the ink cartridge, the chip comprising a substrate and an electrical contact portion provided on the substrate, characterized in that: The ink cartridge further includes a movable part movable relative to the housing, the movable part includes a force-bearing plate and a forced-pushing plate, and the chip further includes a positioning portion arranged on the substrate; When the ink cartridge is installed toward the ink cartridge receiving chamber, the force plate receives the force from the ink cartridge receiving chamber, forcing the movable part to rotate or translate, and the pushing plate forces the chip to move from the first position to the second position around the positioning part. When the force is removed, the chip returns to the first position from the second position under the action of its own gravity and / or the external components of the chip; In the first position, no communication connection is established between the electrical contact portion and the contact pin, and the chip is held in a balanced state by the positioning portion; In the second position, a communication connection is established between the electrical contact and the contact pin.

2. The chip according to claim 1, characterized in that: In the first position, the movable member is not in contact with the substrate, and in the second position, the substrate is abutted by the movable member.

3. The chip according to claim 1, characterized in that: The chip further includes a weight counterweight, which is arranged in front of or behind the positioning portion according to the posture requirement of the chip when it is located at the first position.

4. The chip according to claim 1, characterized in that: When the chip is located at the first position, the substrate is inclined relative to the front-rear direction, and the front end where the electrical contact portion is disposed is inclined upward.

5. The chip according to claim 2, characterized in that: The chip is arranged to be combined with the housing in a rotational manner, and the positioning portion is a protrusion or a groove arranged on the substrate.

6. The chip according to claim 2, characterized in that: The chip is arranged to be combined with the housing in a translational manner, and the positioning portion is a protrusion arranged on the substrate.

7. Ink cartridge, characterized in that The ink cartridge comprises a shell for containing ink and a chip as claimed in any one of claims 1 to 6.

8. The ink cartridge according to claim 7, characterized in that: The movable part is combined with the shell in a rotational or translational manner.

9. The ink cartridge according to claim 7, characterized in that: The ink cartridge further comprises a reset member located between the chip and the shell, and the reset member is used for providing a reset force for the chip to return from the second position to the first position.

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