Electric connection assembly of ink box and ink box

Abstract

The utility model provides an electric connection assembly of an ink box and the ink box. The electric connection assembly comprises a supporting piece, an electric connection piece, an extension piece and a conductive piece. The supporting piece is arranged on a box body of the ink box, the electric connecting piece is arranged on the supporting piece, the extending piece is arranged on the supporting piece, and the extending piece is elastic. The electric connecting piece is provided with a grounding part, the grounding part is electrically connected with the conductive piece, and the conductive piece is used for being electrically connected with a grounding piece of the printer. The conductive piece comprises a first conductive film, the first conductive film is arranged on the surface of the extension piece, and the first conductive film is used for being electrically connected with the grounding piece so that the electric connection assembly can be in a grounding state. And in the grounding state, the extension piece is in an elastic deformation state. According to the electric connection assembly and the ink box, the problem that the possibility degree of grounding failure of the electric connection piece is large can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of ink cartridges, and in particular to an electrical connection assembly of an ink cartridge and an ink cartridge. Background Art

[0002] The electrical connector (also known as chip) of the existing ink cartridge transmits the grounding signal to the printer and realizes the grounding of the electrical connector through the connection between the terminal and the grounding pin. The corresponding terminal is at risk of oxidation and contamination. Frequent plugging and unplugging of the ink cartridge will also cause the terminal to wear and cause grounding failure. Therefore, this grounding method is not reliable enough. There is a type of grounding scheme that can avoid the above problems. This type of scheme uses conductive parts to contact metal parts such as guide rails in the printer to realize the grounding of the electrical connector. However, this type of conductive part, as an accessory of the ink cartridge, has reliability problems in assembly and function. Under the existing scheme, the conductive part is easily dislocated from the ink cartridge due to its own elastic deformation, resulting in poor matching between it and the metal parts in the printer, which can easily cause the grounding failure of the electrical connector. Utility Model Content

[0003] In view of this, the present application provides an electrical connection assembly of an ink cartridge and an ink cartridge, which are helpful in solving the problem of a high degree of possibility of grounding failure of the electrical connector.

[0004] In a first aspect, the present application provides an electrical connection assembly of an ink cartridge, which is used to be arranged on a cartridge body of the ink cartridge, the cartridge body is used to be detachably connected to a mounting structure of a printer, the mounting direction of the ink cartridge is a first direction, the printer also includes a grounding member, and the electrical connection assembly includes a supporting member, an electrical connection member, an extension member, and a conductive member. The supporting member is arranged on the cartridge body, the electrical connection member is arranged on the supporting member, the extension member is arranged on the supporting member, and the extension member is elastic. The electrical connection member includes a grounding portion, the grounding portion is electrically connected to the conductive member, and the conductive member is used to be electrically connected to the grounding member, that is, the conductive member is used to electrically conduct the grounding portion and the grounding member. The conductive member includes a first conductive film, the first conductive film is arranged on the surface of the extension member, and the first conductive film is used to be electrically connected to the grounding member, so that the electrical connection assembly is in a grounded state. Wherein, in the grounded state, the extension member is in an elastically deformed state.

[0005] When the user installs the ink cartridge to the mounting structure along the first direction, the first conductive film is electrically connected to the grounding member, so that the grounding part of the electrical connector is connected to the grounding member through the conductive member to form a grounding circuit, so that the electrical connection component is in a grounded state, and the grounding circuit can reduce the interference degree of at least one adverse factor among electromagnetic interference, static electricity, floating potential and voltage fluctuation on the electrical reliability of the electrical connector. At the same time, the extension member to which the first conductive film is attached is squeezed by the relatively static grounding member and elastically deformed, and the extension member in the elastic deformation state accumulates elastic potential energy, which makes the extension member have a tendency to return to an undeformed state, that is, the extension member itself has an elastic force. Under the action of this elastic force, the first conductive film reliably abuts against the grounding member. Further, since the thickness of the first conductive film itself as a membrane structure is relatively thin, the thickness can be less than or equal to one millimeter, so that the stiffness of the first conductive film is relatively low, that is, the first conductive film can well follow the bending deformation of the extension member, or in other words, the possibility of at least part of the structure of the first conductive film being separated from the extension member due to its own stiffness is relatively small. Therefore, the first conductive film can more reliably abut against the grounding piece. Accordingly, the reliability of the electrical connection between the first conductive film and the grounding piece is higher, the possibility that the electrical connection component is reliably in a grounded state is higher, the working reliability of the ink cartridge is higher, and the user experience is better.

[0006] Optionally, the conductive part also includes a second conductive film and an elastic component, the second conductive film is arranged on the surface of the supporting part, the second conductive film is electrically connected to the first conductive film, the elastic component is arranged on the supporting part, the grounding part is electrically connected to the first conductive film through the elastic component, and / or the grounding part is electrically connected to the second conductive film through the elastic component; wherein the elastic component is in an elastic deformation state.

[0007] Optionally, the conductive member further includes a second conductive film, the second conductive film is disposed on a surface of the supporting member, and the second conductive film is electrically connected to the grounding portion.

[0008] Optionally, the support member includes an outer protrusion, and the second conductive film includes an abutment portion, the abutment portion is arranged on the outer protrusion, and the abutment portion is electrically connected to the ground portion.

[0009] Optionally, the first conductive film includes at least one of a plated film and a coating layer, and the second conductive film includes at least one of a plated film and a coating layer.

[0010] Optionally, the first conductive film has a set first thickness H 1 , satisfying 0mm<H 1 <0.2mm; the second conductive film has a set second thickness H 2 , satisfying 0mm<H 2 <0.2mm.

[0011] Optionally, the electrical connection assembly also includes a locking protrusion and an unlocking member, the locking protrusion is arranged on the extension member, the locking protrusion is used to lock and connect with the mounting structure, and the unlocking member is arranged on the extension member; the locking protrusion is arranged on the side of the extension member away from the supporting member, and the locking protrusion is also located on the first direction side of the unlocking member.

[0012] Optionally, the surface of the electrical connector facing the support member is the inner surface, and the grounding portion is arranged on the inner surface; the surface of the electrical connector away from the support member is the outer surface, and the electrical connector also includes a communication terminal group, which is arranged on the outer surface, and the communication terminal group is used to electrically connect to the pin assembly of the printer.

[0013] Optionally, the outer surface has a second direction and a third direction; the second direction is configured as the extension direction of the projection line of a straight line extending along the first direction on the outer surface, and the second direction is perpendicular to the third direction; the communication terminal group includes at least three communication terminals, each communication terminal has a contact portion, and the contact portion is used to electrically connect with the contact pin of the contact pin assembly; the projections of at least three contact portions on the outer surface enclose a first area, and the outer surface also has a second area formed by the projection of the grounding portion, and in the third direction, at least part of the second area overlaps with the first area.

[0014] In a second aspect, the present application provides an ink cartridge for detachably connecting to the mounting structure of a printer, the ink cartridge comprising a cartridge body and the electrical connection assembly described above, the support member of the electrical connection assembly being detachably connected to the cartridge body, and the electrical connection assembly being arranged on the fourth direction side of the cartridge body; wherein the support member of the electrical connection assembly is located on the first direction side of the extension member of the electrical connection assembly, at least part of the extension member of the electrical connection assembly is located on the fourth direction side of the electrical connection member of the electrical connection assembly, and the fourth direction is perpendicular to the first direction. The ink cartridge of the present application also includes the technical effects of the electrical connection assembly described above, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the assembly structure of the printer installation structure and the stylus assembly in a specific embodiment;

[0017] Figure 2 A schematic diagram of the assembly structure of an ink cartridge, a grounding member and a mounting structure in a specific embodiment;

[0018] Figure 3is a schematic diagram of the structure of an ink cartridge in a specific embodiment;

[0019] Figure 4 is a schematic diagram of an exploded structure of an ink cartridge in a specific embodiment;

[0020] Figure 5 It is a partial cross-sectional structural schematic diagram of the ink cartridge;

[0021] Figure 6 for Figure 5 A partial enlarged schematic diagram of part A;

[0022] Figure 7 The figure is a schematic diagram of the assembly structure of the support member, the extension member, the first conductive film, the second conductive film, the locking protrusion member and the unlocking member in a specific embodiment, wherein the first conductive film and the second conductive film are both represented by grid lines;

[0023] Figure 8 A schematic diagram of the assembly structure of a supporting member, an extending member, an elastic member, a locking protrusion and an unlocking member in a specific embodiment;

[0024] Fig. 9 is a schematic diagram of an assembly structure of a support member, an extension member, a first conductive film, a second conductive film, a locking protrusion member and an unlocking member in another specific embodiment, wherein the first conductive film and the second conductive film are both represented by grid lines;

[0025] Fig.10 for Fig. 9 A partial enlarged schematic diagram of part B;

[0026] Fig.11 It is a schematic diagram of the assembly structure of the support member, the extension member, the locking protrusion member and the unlocking member in a specific embodiment;

[0027] Fig.12 for Fig.11 A partial enlarged schematic diagram of part C in the middle;

[0028] Fig.13 for Figure 8 A schematic diagram of the assembly structure of the middle support member, the extension member, the locking protrusion member and the unlocking member;

[0029] Fig.14 is a schematic diagram of the structure of the electrical connector when the outer surface is viewed from the front;

[0030] Fig.15 is a schematic diagram of the structure of the electrical connector when viewed from the inner surface, wherein the dotted line represents the perspective structure line;

[0031] Fig.16 for Figure 5 A partial enlarged schematic diagram of part D in the middle;

[0032] Fig.17 for Figure 5 A partial enlarged schematic diagram of part E in the middle.

[0033] 10- Cartridge;

[0034] 1-Electrical connection components;

[0035] 11- supporting member;

[0036] 111-external convex part;

[0037] 112-through hole;

[0038] 113-limiting protrusion;

[0039] 12- electrical connector;

[0040] 121- grounding part;

[0041] 122 - inner surface;

[0042] 123 - outer surface;

[0043] 123a-first area;

[0044] 123b - Second area;

[0045] 124-communication terminal group;

[0046] 1241-communication terminal;

[0047] 1241a-contact part;

[0048] 13- extension piece;

[0049] 14- conductive member;

[0050] 141- a first conductive film;

[0051] 142- a second conductive film;

[0052] 142a-abutment portion;

[0053] 143- elastic member;

[0054] 15-locking protrusion;

[0055] 16-Unlocking piece;

[0056] 2-Box body;

[0057] 21-hook-shaped clamping portion;

[0058] 22-accommodating tank;

[0059] 20-installation structure;

[0060] 20a-accommodating chamber;

[0061] 201-ink feeding part;

[0062] 202-locking groove;

[0063] 30- grounding piece;

[0064] 40- contact pin assembly;

[0065] 401- stylus holder;

[0066] 402- stylus;

[0067] i-first direction;

[0068] X-second direction;

[0069] Y-third direction;

[0070] j-Fourth direction. DETAILED DESCRIPTION

[0071] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0072] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0073] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0074] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0075] Please refer to Figure 1As shown, the mounting structure 20 of the printer is provided with a receiving chamber 20a, which can accommodate at least part of the structure of at least two ink cartridges, and the color of the ink stored in each ink cartridge can be the same or different. The mounting structure 20 includes an ink inlet 201, and the ink flowing out of the ink cartridge can flow into the ink pipeline of the printer and the print head of the printer through the ink inlet 201. The print head can transfer the ink to the printing medium (such as paper) to form a print (text and / or image) on the printing medium. The mounting structure 20 also includes a locking groove 202, which is used to lock and connect with the ink cartridge. The stylus assembly 40 of the printer is arranged in the accommodating cavity 20a, and the stylus assembly 40 includes a stylus holder 401 and a stylus 402 connected to each other. The stylus holder 401 is connected to the mounting structure 20, and the stylus 402 is electrically connected to the controller of the printer. The stylus 402 is also used to be electrically connected to the electrical connector of the ink cartridge so that the controller can read the information in the electrical connector through the stylus 402, and the information includes electronic information such as model information, ink volume information and confirmation connection information.

[0076] The "electrical connection" described in this article refers to the fact that two structural members with conductive properties have the function of conducting electricity on the basis of physical contact.

[0077] Please refer to Figure 2 As shown, the grounding member 30 of the printer is connected to the mounting structure 20, and the grounding portion of the electrical connector of the ink cartridge 10 is electrically connected to the grounding member 30 to form a grounding circuit. In other embodiments, the grounding member 30 may not be connected to the mounting structure 20.

[0078] Please refer to Figure 3-Figure 5 As shown, the ink cartridge 10 includes an electrical connection component 1 and a cartridge body 2. The electrical connection component 1 includes a support member 11, an electrical connection member 12 (also known as a chip), an extension member 13, and a conductive member 14. The support member 11 is disposed on the cartridge body 2, the electrical connection member 12 is disposed on the support member 11, and the extension member 13 is disposed on the support member 11. The extension member 13 has elasticity. Figure 6 As shown, the electrical connector 12 has a grounding portion 121, and the grounding portion 121 is electrically connected to the conductive member 14. The conductive member 14 is used to connect to the conductive member 14. Figure 3 The grounding member 30 shown is electrically connected. Figure 7 As shown, the conductive member 14 includes a first conductive film 141, which is disposed on the surface of the extension member 13. The first conductive film 141 is used to Figure 3 The grounding member 30 shown is electrically connected so that the electrical connection assembly 1 is in a grounded state.

[0079] When the user installs the ink cartridge 10 to the mounting structure 20 along the first direction i, the first conductive film 141 is electrically connected to the grounding member 30, so that the grounding portion 121 of the electrical connector 12 is connected to the grounding member 30 through the conductive member 14 to form a grounding circuit, so that the electrical connection component 1 is in a grounded state. The grounding circuit can reduce the degree of interference of at least one adverse factor among electromagnetic interference, static electricity, floating potential and voltage fluctuation on the electrical reliability of the electrical connector 12. At the same time, the extension member 13 to which the first conductive film 141 is attached is squeezed by the relatively stationary grounding member 30 and undergoes elastic deformation. The extension member 13 in the elastic deformation state accumulates elastic potential energy, which makes the extension member 13 have a tendency to recover to the undeformed state, that is, the extension member 13 itself has an elastic force. Under the action of this elastic force, the first conductive film 141 reliably abuts against the grounding member 30. Further, the first conductive film 141 as a membrane structure can have a first thickness H 1 , satisfying 0mm<H 1 <0.2mm, the smaller thickness makes the first conductive film 141 have a lower rigidity, that is, the first conductive film 141 can well follow the bending deformation of the extension member 13, or in other words, the possibility of at least part of the structure of the first conductive film 141 being separated from the extension member 13 due to its own rigidity is small. Therefore, the first conductive film 141 can more reliably abut against the grounding member 30, and accordingly, the reliability of the electrical connection between the first conductive film 141 and the grounding member 30 is greater, the possibility of the electrical connection component 1 being reliably in the grounding state is greater, the working reliability of the ink cartridge 10 is greater, and the user experience is better. The first thickness H 1 Specifically, it can be 0.05mm, 0.1mm or 0.15mm. Secondly, the first conductive film 141 as a membrane structure is less likely to interfere with the mounting structure 20, so that the ink cartridge 10 can be easily installed in the correct position of the mounting structure 20. The volume of the extension member 13 to which the first conductive film 141 is attached can also be relatively small, and the extension member 13 is less likely to interfere with the mounting structure 20, so that the ink cartridge 10 can be easily installed in the correct position of the mounting structure 20.

[0080] Among them, the first conductive film 141 includes at least one of a plated film and a coating, both of which have conductive properties. The preparation process of the plated film can be a process that can plate a metal film, such as an electroplating process or a chemical plating process, and the preparation process of the coating can be a process that can solidify a metal-containing slurry into a metal coating, such as coating or printing. Any of the above preparation processes can be used to prepare a first conductive film 141 with conductivity and good bendability. The structure of the first conductive film 141 can be a single-layer structure or a composite layer structure. If the first conductive film 141 is a composite layer structure, the first conductive film 141 can be composed of at least two different plated films, or the first conductive film 141 can be composed of at least two different coatings, or the first conductive film 141 can be composed of a plated film and a coating. The first conductive film 141 can be made of copper metal, iron metal, silver metal or other metal materials as a preparation material, and the material of the first conductive film 141 can be an alloy material, so that the first conductive film 141 also has good wear resistance, corrosion resistance and oxidation resistance.

[0081] In addition, the structure of the grounding member 30 can be specifically a metal guide rail, the mounting structure 20 can be slidably connected to the metal guide rail, and the ink cartridge 10 mounted on the mounting structure 20 can move along the extension direction of the metal guide rail (a direction parallel to the direction k), and accordingly, the first conductive film 141 can slide along the extension direction of the metal guide rail. Under this setting, the metal guide rail has the function of guiding the movement of the mounting structure 20 and the ink cartridge 10, and the metal guide rail also has a grounding function, so that the structure of the printer is relatively simple and the working reliability is higher. In other embodiments, the structure of the grounding member 30 can also be a part of the metal frame of the printer.

[0082] Furthermore, the support member 11 and the box body 2 can be detachably connected. If the support member 11 and the box body 2 are detachably connected, the box body 2 can be a standard structural member or a universal structural member, and the support member 11 can be a variety of specific members with specific configurations. Under this setting, the box body 2 can be matched with different support members 11 to form different types of ink cartridges 10, thereby adapting to different types of printers. The electrical connector 12 can be detachably connected to the support member 11, so that the support member 11 can be matched with different types of electrical connectors 12 to form different types of ink cartridges 10, thereby adapting to different types of printers.

[0083] In addition, the electrical connection assembly 1 can be arranged on the fourth direction j side of the box body 2, and the fourth direction j is perpendicular to the first direction i. The support member 11 can be located on the first direction i side of the extension member 13, and at least part of the extension member 13 can be located on the fourth direction j side of the electrical connection member 12.

[0084] Optionally, the structure of the support member 11 may be a frame structure, which arrangement enables the support member 11 to have a greater degree of structural stability.

[0085] Optionally, the extension member 13 may be a plate-like structure, a sheet-like structure or a rod-like structure. This configuration makes the structural stability of the extension member 13 smaller than that of the support member 11 , so that the extension member 13 may have elastic deformation properties.

[0086] Among them, the structure of the extension piece 13 can include at least two structural segments with intersecting extension directions. Under this setting, the extension piece 13 can extend from the inside of the accommodating cavity 20a to the outside of the accommodating cavity 20a without structural interference with the mounting structure 20 and the box body 2 and can slide on the surface of the grounding piece 30.

[0087] Optionally, the grounding portion 121 of the electrical connector 12 may be directly electrically connected to the first conductive film 141 , or the grounding portion 121 of the electrical connector 12 may be indirectly electrically connected to the first conductive film 141 through other components.

[0088] Optionally, the conductive member 14 further includes Figure 7 The second conductive film 142 shown and Figure 8 The second conductive film 142 is disposed on the surface of the support member 11, the second conductive film 142 is electrically connected to the first conductive film 141, and the elastic member 143 is disposed on the support member 11. Figure 6 As shown, the grounding portion 121 is electrically connected to the elastic member 143. The elastic member 143 is electrically connected to the second conductive film 142, wherein the elastic member 143 is in an elastically deformed state.

[0089] The second conductive film 142 and the elastic member 143 are the parts of the conductive member 14 close to the support member 11. The grounding part 121 close to the support member 11 can be electrically connected to the elastic member 143 close to the support member 11 first, so that the grounding part 121 is electrically connected to the first conductive film 141 close to the extension member 13 through the elastic member 143 and the second conductive film 142 as the conductive medium. Under this setting, the electrical connector 12 where the grounding part 121 is located can be located at a position closer to the contact pin assembly 40, and the first conductive film 141 can be located at a position closer to the grounding member 30. Accordingly, the spacing distance between the grounding member 30 and the contact pin assembly 40 is larger. Under this setting, the electromagnetic interference between the grounding member 30 and the contact pin assembly 40 is low, the possibility of electrical short circuit connection between the grounding member 30 and the contact pin assembly 40 is low, and the reliability of communication between the electrical connector 12 and the contact pin assembly 40 is high. Secondly, the elastic force of the elastic member 143 in the elastic deformation state enables the elastic member 143 to reliably abut against the grounding portion 121 , and the electrical connection reliability between the elastic member 143 and the grounding portion 121 is high, which is beneficial to improving the grounding reliability of the electrical connector 12 .

[0090] Among them, the preparation process of the second conductive film 142 can refer to any preparation process of the first conductive film 141 in the above content, the structure of the second conductive film 142 can refer to the single-layer structure or composite layer structure of the first conductive film 141 in the above content, and the material of the second conductive film 142 can refer to the material of the first conductive film 141 in the above content. The first conductive film 141 and the second conductive film 142 can be integrally formed by the same preparation process. Alternatively, the first conductive film 141 and the second conductive film 142 can be separately produced by different preparation processes, so that the first conductive film 141 has better flexibility, wear resistance and corrosion resistance than the second conductive film 142, so that the electrical connection reliability between the first conductive film 141 and the grounding member 30 is better. The second conductive film 142 can have a set second thickness H 2 , satisfying 0mm<H 2 <0.2mm, second thickness H 2 Specifically, it can be 0.05mm, 0.1mm or 0.15mm. The technical effect of the thickness of the second conductive film 142 is the same as the technical effect of the thickness of the first conductive film 141 in the above content, that is, the ink cartridge 10 can be easily installed in the correct position of the installation structure 20.

[0091] In addition, the structure of the elastic member 143 can be a metal sheet, and the metal sheet has elasticity. The elastic member 143 can be detachably connected to the support member 11 by screws. Under the tightening force of the screws, the elastic member 143 can reliably abut against the second conductive film 142, so that the elastic member 143 and the second conductive film 142 are reliably electrically connected. For electrical connectors 12 of different configurations, elastic members 143 of different structures can be installed on the support member 11, so that the grounding portion 121 of the electrical connector 12 is adapted to the elastic member 143.

[0092] In other embodiments (not shown in the figures), the elastic member 143 may also be welded to the second conductive film 142 , so that the elastic member 143 and the second conductive film 142 are reliably electrically connected.

[0093] In other embodiments (not shown), the elastic member 143 can be extended to the extension 13 to electrically connect the elastic member 143 to the first conductive film 141. In this embodiment, the second conductive film 142 may not be required or may still be retained.

[0094] Optionally, see Fig. 9 As shown, the conductive member 14 further includes a second conductive film 142, which is disposed on the surface of the support member 11, and the second conductive film 142 is electrically connected to the first conductive film 141. The second conductive film 142 is directly electrically connected to the grounding portion 121.

[0095] The second conductive film 142 is a part of the conductive member 14 close to the support member 11. The grounding portion 121 close to the support member 11 can be electrically connected to the second conductive film 142 close to the support member 11 first, so that the grounding portion 121 is electrically connected to the first conductive film 141 close to the extension member 13 through the second conductive film 142 as a conductive medium. Under this setting, the electrical connector 12 where the grounding portion 121 is located can be located at a position closer to the contact pin assembly 40, and the first conductive film 141 can be located at a position closer to the grounding member 30. Accordingly, the spacing distance between the grounding member 30 and the contact pin assembly 40 is larger. Under this setting, the electromagnetic interference between the grounding member 30 and the contact pin assembly 40 is low, the possibility of electrical short circuit connection between the grounding member 30 and the contact pin assembly 40 is low, and the reliability of communication between the electrical connector 12 and the contact pin assembly 40 is high.

[0096] The first conductive film 141 and the second conductive film 142 can be integrally formed by the same preparation process. Alternatively, the first conductive film 141 and the second conductive film 142 can be made by different preparation processes, so that the first conductive film 141 has better bending, wear resistance and corrosion resistance than the second conductive film 142, thereby making the electrical connection reliability between the first conductive film 141 and the grounding member 30 better.

[0097] Optionally, see Fig.10 As shown, the support member 11 includes an outer protrusion 111, and the second conductive film 142 includes an abutting portion 142a, which is disposed on the outer protrusion 111 and electrically connected to the grounding portion 121. The provision of the outer protrusion 111 can improve the possibility of the abutting portion 142a reliably abutting against the grounding portion 121, so that the electrical connection reliability between the abutting portion 142a and the grounding portion 121 is high, which is conducive to improving the grounding reliability of the electrical connector 12.

[0098] Please refer to Fig.11 and Fig.12 As shown, the outer protrusion 111 can be a strip-shaped structure or a sheet-shaped structure extending from the main body of the support member 11 .

[0099] In addition, the outer protrusion 111 may have elasticity, and the elastic force of the outer protrusion 111 in the elastically deformed state can further increase the possibility of the contact portion 142 a contacting the ground portion 121 reliably.

[0100] In other embodiments (not shown in the figure), the grounding portion 121 may be a protruding structure, and under the condition that the support member 11 and the electrical connector 12 are reliably connected, the grounding portion 121 can reliably abut against the second conductive film 142, thereby making the electrical connection between the second conductive film 142 and the grounding portion 121 more reliable. Therefore, this embodiment does not need to provide the outer protrusion 111.

[0101] Optionally, the area of ​​the second conductive film 142 is smaller than that of the first conductive film 141. Under this setting, the area of ​​the first conductive film 141 is relatively large, the area of ​​the first conductive film 141 for electrical connection with the grounding member 30 is relatively large, and the reliability of the electrical connection between the first conductive film 141 and the grounding member 30 is relatively high; the second conductive film 142 with a relatively small area can meet the needs of grounding and conduction, and the preparation process is relatively simple accordingly.

[0102] Optionally, see Fig.13 As shown, the electrical connection assembly 1 further includes a locking protrusion 15, which is disposed on the extension member 13. The locking protrusion 15 can be locked and connected with the locking groove 202 of the mounting structure 20, so that the ink cartridge 10 is stably mounted on the mounting structure 20. Fig.13 As shown, the electrical connection assembly 1 further includes an unlocking member 16, which is disposed on the extension member 13. The user can operate the unlocking member 16 to elastically deform the extension member 13, so that the locking protrusion 15 is disengaged from the locking groove 202, so as to release the locked connection state of the locking protrusion 15, thereby allowing the ink cartridge 10 to be disengaged from the mounting structure 20. The locking protrusion 15 is disposed on a side of the extension member 13 away from the support member 11, and this arrangement facilitates the locking protrusion 15 to be closer to the locking groove 202. In addition, the locking protrusion 15 is also located on the first direction i side of the unlocking member 16, or in other words, the unlocking member 16 is located above the locking protrusion 15, and this arrangement facilitates the user to operate the unlocking member 16.

[0103] Among them, at least a part of the locking protrusion 15 can be a cubic structure such as a triangular prism or a quadrangular prism.

[0104] In addition, at least a portion of the unlocking member 16 may be a combination of a plate-like structure and a hook-like structure.

[0105] Optionally, at least two of the support member 11 , the extension member 13 , the locking protrusion member 15 and the unlocking member 16 are integrally formed.

[0106] If the support member 11 , the extension member 13 , the locking protrusion member 15 and the unlocking member 16 are formed in one piece, the structural strength of the one piece formed by the four is higher and the manufacturing process of the structure is simpler.

[0107] If the support member 11 and the extension member 13 are detachably connected, the support member 11 can be a standard structural member or a universal structural member, and the extension member 13 can be a variety of specific members with specific configurations. Under this setting, the support member 11 can be matched with different extension members 13 to form different types of ink cartridges 10, so that it can be adapted to the grounding members 30 of different types of printers.

[0108] If the support member 11 and the locking protrusion 15 are detachably connected, the support member 11 can be a standard structural member or a universal structural member, and the locking protrusion 15 can be a variety of specific members with specific configurations. Under this setting, the support member 11 can be matched with different locking protrusions 15 to form different types of ink cartridges 10, so that it can be adapted to the mounting structures 20 of different types of printers.

[0109] Optionally, see Figure 6 As shown, the surface of the electrical connector 12 facing the support member 11 is the inner surface 122, and the grounding portion 121 is disposed on the inner surface 122. The surface of the electrical connector 12 facing away from the support member 11 is the outer surface 123, and the electrical connector 12 further includes a communication terminal group 124, which is disposed on the outer surface 123 and is used to electrically connect to the contact pin assembly 40. Under this setting, the possibility of an electrical short circuit connection problem between the grounding portion 121 located on the inner surface 122 and the communication terminal group 124 located on the outer surface 123 is low; secondly, the possibility of electromagnetic interference between the grounding portion 121 located on the inner surface 122 and the communication terminal group 124 located on the outer surface 123 is low; furthermore, the inner surface 122 of the electrical connector 12 is subjected to the force of the conductive member 14, and the outer surface 123 of the electrical connector 12 is subjected to the force of the contact pin assembly 40, and the directions of the two forces are opposite. The load of the combined force of the two forces borne by the electrical connector 12 is small, and the electrical connector 12 is not prone to large-scale bending deformation, and the structural reliability and electrical connection reliability of the electrical connector 12 are both large.

[0110] The structure of the electrical connector 12 may be a plate-like structure or a sheet-like structure.

[0111] In addition, the electrical connector 12 may be a hard circuit board or a flexible circuit board.

[0112] Optionally, the outer surface 123 has a first direction i, a second direction X and a third direction Y. The first direction i is the installation direction of the ink cartridge 10. The second direction X is configured as the extension direction of the projection line of the straight line extending along the first direction i on the outer surface 123. The second direction X is perpendicular to the third direction Y. Fig.14 and Fig.15As shown, the communication terminal group 124 includes at least three communication terminals 1241, each of which has a contact portion 1241a, and the contact portion 1241a is used to electrically connect to the contact pin 402 of the contact pin assembly 40. The projections of the at least three contact portions 1241a on the outer surface 123 enclose a first area 123a (such as Fig.14 The outer surface 123 also has a second area 123b formed by the projection of the grounding portion 121 (such as the area enclosed by the bold dashed line of the parallelogram shown in FIG. Fig.14 In the third direction Y, at least part of the second area 123b overlaps with the first area 123a. Under this arrangement, the force of the conductive member 14 borne by the inner surface 122 of the electrical connector 12 and the force of the contact pin 402 borne by the outer surface 123 of the electrical connector 12 are close in the third direction Y, the bending moment borne by the electrical connector 12 is small, the electrical connector 12 is not prone to large bending deformation, and the structural reliability and electrical connection reliability of the electrical connector 12 are both large.

[0113] The first direction i and the second direction X may be parallel. Alternatively, the first direction i may be inclined relative to the second direction X, and the angle between the first direction i and the second direction X is an acute angle.

[0114] In addition, in the third direction Y, a portion of the second region 123 b may be located within the region of the first portion 123 a , or the entire second region 123 b may be located within the region of the first portion 123 a .

[0115] Optionally, see Figure 4 As shown, the box body 2 includes a hook-shaped clamping portion 21, and the box body 2 is also provided with a receiving groove 22, and the receiving groove 22 is located on the second direction X side of the clamping portion 21. Figure 8 As shown, the support member 11 is provided with a through hole 112, and the support member 11 includes a limiting protrusion 113, and the limiting protrusion 113 is located on the second direction X side of the through hole 112. Fig.16 As shown, the hook-shaped clamping portion 21 is inserted into the through hole 112 and the hook-shaped clamping portion 21 is clamped with the support member 11. Fig.17 As shown, the receiving groove 22 receives at least a part of the structure of the limiting protrusion 113. Under this configuration, the support member 11 is detachably connected to the box body 2.

[0116] There are at least two hook-shaped engaging portions 21 and at least two through holes 112 .

Claims

1. An electrical connection assembly of an ink cartridge, used to be arranged on a cartridge body of the ink cartridge, the cartridge body is used to be detachably connected to a mounting structure of a printer, the mounting direction of the ink cartridge is a first direction, the printer further includes a grounding member, characterized in that: The electrical connection assembly comprises: A support member, used to be arranged on the box body; An electrical connector, disposed on the support member, the electrical connector having a grounding portion; An extension member, disposed on the support member, and the extension member has elasticity; A conductive member, used for electrically connecting the grounding portion and the grounding member, the conductive member comprising a first conductive film, the first conductive film being disposed on a surface of the extension member, the first conductive film being used for electrically connecting to the grounding member so that the electrical connection assembly is in a grounded state; Wherein, in the grounded state, the extension piece is in an elastically deformed state.

2. The electrical connection assembly of the ink cartridge according to claim 1, characterized in that: The conductive member further comprises a second conductive film and an elastic member, wherein the second conductive film is disposed on a surface of the supporting member, the second conductive film is electrically connected to the first conductive film, the elastic member is disposed on the supporting member, the grounding portion is electrically connected to the first conductive film via the elastic member, and / or the grounding portion is electrically connected to the second conductive film via the elastic member; Wherein, the elastic component is in an elastically deformed state.

3. The electrical connection assembly of the ink cartridge according to claim 1, characterized in that: The conductive member further includes a second conductive film, which is disposed on a surface of the support member and is electrically connected to the grounding portion.

4. The electrical connection assembly of the ink cartridge according to claim 3, characterized in that: The support member includes an outer protrusion, and the second conductive film includes an abutment portion, the abutment portion is provided on the outer protrusion, and the abutment portion is electrically connected to the ground portion.

5. The electrical connection assembly of the ink cartridge according to any one of claims 2 to 4, characterized in that: The first conductive film includes at least one of a plated film and a coating layer, and the second conductive film includes at least one of a plated film and a coating layer.

6. The electrical connection assembly of the ink cartridge according to any one of claims 2 to 4, characterized in that: The first conductive film has a set first thickness H1, which satisfies 0 mm<H1<0.2 mm; The second conductive film has a set second thickness H2 that satisfies 0 mm<H2<0.2 mm.

7. The electrical connection assembly of the ink cartridge according to any one of claims 1 to 4, characterized in that: The electrical connection assembly further comprises a locking protrusion and an unlocking member, wherein the locking protrusion is arranged on the extension member, the locking protrusion is used for locking and connecting with the mounting structure, and the unlocking member is arranged on the extension member; The locking protrusion is arranged on a side of the extending member away from the supporting member, and the locking protrusion is located on the first direction side of the unlocking member.

8. The electrical connection assembly of the ink cartridge according to any one of claims 1 to 4, characterized in that: The surface of the electrical connector facing the support member is an inner surface, and the grounding portion is arranged on the inner surface; The surface of the electrical connector facing away from the support member is an outer surface. The electrical connector further comprises a communication terminal group, which is arranged on the outer surface and is used for electrically connecting to a contact pin assembly of the printer.

9. The electrical connection assembly of the ink cartridge according to claim 8, characterized in that: The outer surface has a second direction and a third direction; The second direction is configured as an extending direction of a projection line of a straight line extending along the first direction on the outer surface, and the second direction is perpendicular to the third direction; The communication terminal group includes at least three communication terminals, each of which has a contact portion, and the contact portion is used to electrically connect to the contact pin of the contact pin assembly; The projections of at least three of the contact portions on the outer surface enclose a first area, and the outer surface further has a second area formed by the projection of the grounding portion. In the third direction, at least a portion of the second area overlaps with the first area.

10. An ink cartridge, characterized in that: include: Box body; The electrical connection assembly is the electrical connection assembly according to any one of claims 1 to 9, wherein the support member is detachably connected to the box body, and the electrical connection assembly is arranged on the fourth direction side of the box body; The supporting member is located on the first direction side of the extending member, and at least a part of the structure of the extending member is located on the fourth direction side of the electrical connecting member, and the fourth direction is perpendicular to the first direction.

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