Ink box

Abstract

The utility model relates to an ink box, and relates to the technical field of printing. The ink box comprises a bearing part and a printing element substrate, the bearing part bears the printing element substrate, the bearing part is provided with an ink supply flow channel and comprises a limiting side wall, the printing element substrate is provided with an ink supply port, the ink supply port communicates with the ink supply flow channel, and the printing element substrate further comprises an electric connection part which is not provided with a side face. The non-formed side surface of the electric connection part and the limiting side wall are oppositely arranged at an interval, a set interval distance D1 is formed between the limiting side wall and the non-formed side surface of the electric connection part, and 0.4 mm < = D1 < = 0.6 mm. According to the ink box, it can be guaranteed that the bearing piece has a good limiting effect on the printing element substrate, the structure of the bearing piece can be relatively simplified, and the manufacturing difficulty of the bearing piece is relatively low.

Description

Technical Field

[0001] This application relates to the field of printing equipment technology, and more particularly to an ink cartridge. Background Technology

[0002] In related technologies, ink cartridges are consumables that can be detachably installed on image forming devices, and ink cartridges can store ink or ink.

[0003] The ink cartridge includes a printing element substrate and a carrier. The printing element substrate is mounted on the carrier, and the carrier is used to restrict the movement of the printing element substrate.

[0004] In ink cartridges using related technologies, the structure of the carrier component is relatively complex, and its manufacturing difficulty is relatively high. Utility Model Content

[0005] In view of this, this application provides an ink cartridge that, while ensuring that the carrier of the ink cartridge has a good limiting effect on the printing element substrate, has a relatively simple structure and is relatively easy to manufacture.

[0006] This application provides an ink cartridge, which includes a carrier and a printing element substrate. The carrier carries the printing element substrate and is provided with an ink supply channel. The carrier includes a limiting sidewall. The printing element substrate is provided with an ink supply port that communicates with the ink supply channel. The printing element substrate also includes a side where an electrical connection portion is not formed. The side where the electrical connection portion is not formed is disposed opposite to and spaced apart from the limiting sidewall. The limiting sidewall and the side where the electrical connection portion is not formed have a set interval distance D1 that satisfies 0.4mm≤D1≤0.6mm.

[0007] Optionally, the carrier includes a recess, at least a portion of the structure of the printing element substrate is located in the recess, the recess includes a limiting sidewall, and the recess bottom wall of the recess is provided with an ink supply channel.

[0008] Optionally, the recess includes two spaced-apart limiting sidewalls facing each other, and the printed element substrate includes two spaced-apart electrical connection portions that are not side-formed and are back-to-back with each other, with the two electrical connection portions not side-formed located between the two limiting sidewalls.

[0009] Optionally, the recessed bottom wall includes a planar portion, and the printed element substrate includes a supported surface facing the planar portion, and the supported surface is bonded to the planar portion.

[0010] Optionally, the shape of the recessed portion projected onto the projection surface of the carrier along the height direction of the ink cartridge is rectangular.

[0011] Optionally, the limiting sidewall and the electrical connection portion are not parallel to each other.

[0012] Optionally, the cartridge also includes a sealant disposed between the limiting sidewall and the side not formed by the electrical connection portion, and the limiting sidewall and the side not formed by the electrical connection portion are sealed together by the sealant.

[0013] Optionally, the ink cartridge also includes an electrical wiring substrate, and the printing element substrate also includes an electrical connection portion forming a side, the plane where the electrical connection portion forming a side intersects with the plane where the electrical connection portion does not form a side; the electrical connection portion forming a side is connected to the electrical wiring substrate, and the electrical connection portion not forming a side is separately disposed from the electrical wiring substrate.

[0014] Optionally, the ink cartridge includes a housing for containing ink, and the housing is detachably connected to the carrier, integrally molded, bonded, or welded.

[0015] Optionally, the cartridge body is provided with an ink storage chamber and a filter chamber, and the ink storage chamber is connected to the ink supply channel through the filter chamber.

[0016] In this application, the limiting sidewall can limit the movement of the printed element substrate relative to the carrier by restricting the movement of the printed element substrate, thereby ensuring relatively high printing accuracy and thus relatively good ink cartridge printing quality. The space between the limiting sidewall and the unformed side of the electrical connection can serve as a venting space and an adhesive overflow space. During the bonding process between the printed element substrate and the carrier, the adhesive is less likely to flow into the ink supply channel, thus preventing the ink supply channel from being blocked by the cured adhesive. Although there is a space between the limiting sidewall and the unformed side of the electrical connection, the distance D1 between the limiting sidewall and the unformed side of the electrical connection is relatively small, the distance the printed element substrate can move is relatively small, and the impact on the printing accuracy of the printed element substrate is relatively small.

[0017] Therefore, the carrier of the ink cartridge of this application does not need to be provided with a complex positioning protrusion structure. The carrier of the ink cartridge of this application can also effectively restrict the movement of the printing element substrate, so as to ensure that the printing accuracy of the printing element substrate meets the usage requirements, and also reduce the possibility of the ink supply channel being blocked.

[0018] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1A three-dimensional structural diagram of the ink cartridge provided in this application in one embodiment;

[0021] Figure 2 for Figure 1 A three-dimensional structural diagram of the ink cartridge from another perspective;

[0022] Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure of the printed component substrate;

[0023] Figure 4 for Figure 2 A partial structural diagram of the first part of the electrical wiring board in the diagram;

[0024] Figure 5 for Figure 1 A bottom view of the medium ink cartridge;

[0025] Figure 6 This is a three-dimensional structural diagram of an ink cartridge in one embodiment, wherein the electrical wiring board is not shown;

[0026] Figure 7 for Figure 5 A cross-sectional view of the middle ink cartridge along direction AA;

[0027] Figure 8 for Figure 7 A magnified view of part B in the middle section;

[0028] Figure 9 for Figure 6 A bottom view of the medium ink cartridge;

[0029] Figure 10 A three-dimensional structural diagram of the ink cartridge provided in this application in another embodiment;

[0030] Figure 11 for Figure 10 A three-dimensional structural diagram of the substrate for printing components in China;

[0031] Figure 12 This is a three-dimensional structural diagram of the box body in another embodiment;

[0032] Figure 13 This is a cross-sectional view of the box body in another embodiment;

[0033] Figure 14 for Figure 13 A magnified view of part C in the middle.

[0034] Figure label:

[0035] 1-Box body;

[0036] 11-Receiving cavity;

[0037] 111-Ink storage chamber;

[0038] 111a - First ink storage chamber;

[0039] 111b - Second ink storage chamber;

[0040] 111c - Third ink storage chamber;

[0041] 112 - Filter chamber;

[0042] 112a - First filter chamber;

[0043] 112b - Second filter chamber;

[0044] 112c - Third filter chamber;

[0045] 2-Bearing component;

[0046] 21-Ink supply channel;

[0047] 211-First ink supply channel;

[0048] 212 - Second ink supply channel;

[0049] 213 - Third ink supply channel;

[0050] 22-Recessed area;

[0051] 221-Limiting sidewall;

[0052] 222 - Concave bottom wall;

[0053] 3-Cap;

[0054] 4-Printed component substrate;

[0055] 41-Ink supply port;

[0056] 411 - First ink supply port;

[0057] 412 - Second ink supply port;

[0058] 413 - Third ink supply port;

[0059] 42 - The electrical connection portion does not form a side surface;

[0060] 43 - Electrical connection portion forms the side surface;

[0061] 44 - The surface being supported;

[0062] 5-Electrical wiring board;

[0063] 51 - Part One;

[0064] 511 - Opening;

[0065] 511a - First end;

[0066] 511b - Second end;

[0067] 52 - Part Two;

[0068] 6-Adhesives;

[0069] 7-Filter element. Detailed Implementation

[0070] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0071] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0072] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0073] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0074] This application provides some embodiments of ink cartridges, relating to the field of printing equipment technology.

[0075] In some embodiments, please refer to Figure 1 As shown, the ink cartridge may include a cartridge body 1, a cover 3, and an electrical wiring board 5. The X, Y, and Z directions are all perpendicular to each other. Direction X can be parallel to the length direction of the ink cartridge, direction Y can be parallel to the width direction of the ink cartridge, and direction Z can be parallel to the height direction of the ink cartridge.

[0076] In some embodiments, please refer to Figure 1As shown, the cartridge body 1 may have a receiving cavity (not shown in the figure) for holding ink. The top of the cartridge body 1 is detachably connected to the cover 3, and the cover 3 may have a connecting port (not shown in the figure). The receiving cavity can communicate with the outside of the ink cartridge through the connecting port. When the ink cartridge transfers ink to the printing medium (such as paper, labels, envelopes), air from outside the ink cartridge can enter the receiving cavity through the connecting port, thereby balancing the air pressure outside the ink cartridge with the air pressure inside the receiving cavity.

[0077] In some embodiments, please refer to Figure 1 As shown, the electrical wiring board 5 is provided with multiple electrical contacts. When the ink cartridge is installed in the image forming apparatus (not shown in the figure), the pins of the power supply component of the image forming apparatus can be electrically connected to the electrical contacts of the electrical wiring board 5 so that the image forming apparatus can supply power to the electrical wiring board 5.

[0078] In some embodiments, please refer to Figure 2 As shown, the electrical wiring board 5 may include a first portion 51 and a second portion 52 connected to each other. The first portion 51 may be located below the housing 1, and the second portion 52 may be located in the side structural wall of the housing 1 facing the stylus. The second portion 52 may be provided with electrical contacts for electrical connection with the stylus, and the first portion 51 and the second portion 52 are electrically connected. When the ink cartridge is installed in an image forming apparatus (not shown), the image forming apparatus can conduct power to the first portion 51 through the second portion 52.

[0079] In some embodiments, please refer to Figure 2 As shown, the ink cartridge may include a printing element substrate 4, which may also be referred to as a printhead or inkjet head substrate. The printing element substrate 4 is electrically connected to the first part 51. When the ink cartridge is installed in the image forming apparatus, the first part 51 can conduct the obtained power to the printing element substrate 4. The energized printing element substrate 4 can use its own driving element (not shown in the figure, such as a heating element or a piezoelectric element) to control the ink jetting onto the printing medium. The printing element substrate 4 is also located below the cartridge body 1 so that the printing element substrate 4 can jet the ink downwards onto the printing medium.

[0080] In some embodiments, please refer to Figure 3 As shown, the printing element substrate 4 may be provided with an ink supply port 41. The upper part of the ink supply port 41 may be connected to the receiving cavity of the cartridge so that ink can flow downward from the receiving cavity to the ink supply port 41. The driving element of the printing element substrate 4 can control the ink flowing out of the ink supply port 41 to be sprayed onto the printing medium.

[0081] In some embodiments, please refer to Figure 3As shown, the printing element substrate 4 may include a side 42 where electrical connections are not formed and a side 43 where electrical connections are formed. Electrical connections are provided on the side 43 where electrical connections are formed, while no electrical connections are provided on the side 42 where electrical connections are not formed. The side 43 where electrical connections are formed is connected to a first portion 51 of the electrical wiring substrate 5, so that the electrical connections located on the side 43 where electrical connections are formed are electrically connected to the first portion 51, thereby allowing the first portion to conduct the obtained power to the printing element substrate 4. The side 42 where electrical connections are not formed is not connected to the first portion of the electrical wiring substrate; correspondingly, there is no electrical connection between the side 42 where electrical connections are not formed and the first portion.

[0082] In some embodiments, please refer to Figure 3 As shown, the printing element substrate 4 may include two electrical connection portions that are spaced apart and facing away from each other in the Y direction but do not form a side surface 42. The printing element substrate 4 may also include two electrical connection portions that are spaced apart and facing away from each other in the X direction but form a side surface 43. The plane containing the electrical connection portions forming a side surface 43 intersects the plane containing the electrical connection portions that do not form a side surface 42. The overall structure of the printing element substrate 4 is rectangular-cubic, and the overall structure of the printing element substrate 4 extends along the X direction. The ink supply port 41 also extends along the X direction.

[0083] In some embodiments, please refer to Figure 4 As shown, the first portion 51 is provided with an opening 511, and the printing element substrate can be located in the opening 511. The first portion 51 may include a first end 511a and a second end 511b spaced apart in the X direction, the opening 511 is located between the first end 511a and the second end 511b, one of the electrical connection portions of the printing element substrate forms a side that can be connected to the first end 511a, and the other electrical connection portion of the printing element substrate forms a side that can be connected to the second end 511b.

[0084] In some embodiments, please refer to Figure 5 As shown, the ink cartridge also includes two adhesives 6 spaced apart in the X direction. The printing element substrate 4 is located between the two adhesives 6. Both connection structures between the printing element substrate 4 and the first part 51 are provided with adhesives 6. By providing adhesives 6, the structural strength of the connection structure between the printing element substrate 4 and the first part 51 can be enhanced. The adhesive 6 can be a sealant, sealant, or other substance, as long as it can seal the connection structure between the printing element substrate 4 and the first part 51.

[0085] In some embodiments, please refer to Figure 6As shown, the ink cartridge may include a carrier 2, which is located below the cartridge body 1. The carrier 2 and the cartridge body 1 may be detachably connected, welded, bonded, or integrally formed. The carrier 2 can support the printing element substrate 4; in other words, the carrier 2 serves as a mounting carrier for the printing element substrate 4. The carrier 2 may be provided with an ink supply channel 21, and the receiving cavity of the cartridge body 1 can be connected to the ink supply port 41 through the ink supply channel 21.

[0086] In some embodiments, please refer to Figure 7 As shown, the receiving cavity 11 of the housing 1 may include a connected ink storage cavity 111 and a filter cavity 112. The volume of the ink storage cavity 111 is larger than the volume of the filter cavity 112. The ink storage cavity 111 serves as the main space for storing ink, and ink can flow from the ink storage cavity 111 to the filter cavity 112. The filter cavity 112 is connected to the ink supply port through an ink supply channel, so that ink can flow from the filter cavity 112 to the ink supply port through the ink supply channel.

[0087] Please refer to Figure 7 As shown, the ink cartridge may also include a filter element 7, which is disposed at the top opening of the filter chamber 112. When ink flows from the ink storage chamber 111 to the filter chamber 112, some impurities inside the ink can be filtered by the filter element 7, so that the printing quality of the ink cartridge is relatively good.

[0088] In addition, the ink cartridge may also include an absorber (not shown in the figure), which is located in the ink storage chamber 111. The absorber may include materials with porous structures such as sponge or felt. The absorber can absorb ink under negative pressure and can limit the flow rate of the ink to control the flow rate of the ink in the ink storage chamber 111 to the filter chamber 112.

[0089] In some embodiments, please refer to Figure 8 As shown, the carrier 2 and the printing element substrate 4 can be bonded together. When the printing element substrate 4 is not placed on the carrier 2, adhesive can be applied to the carrier 2 or the printing element substrate 4, and then the printing element substrate 4 can be placed on the carrier 2, thereby bonding the printing element substrate 4 to the carrier 2.

[0090] The adhesive between the carrier 2 and the printing element substrate 4 is disposed on the top surface (carried surface 44) of the printing element substrate 4. Alternatively, the adhesive between the carrier 2 and the printing element substrate 4 is disposed on the surface of the carrier 2 located around the outlet below the ink supply channel 21.

[0091] In addition, during the bonding process of the carrier 2 and the printing element substrate 4, the carrier 2 and the printing element substrate 4 need to be pressed against each other to compact the adhesive between them, thereby expelling air from the adhesive and ensuring a reliable bond between the carrier 2 and the printing element substrate 4. Before the adhesive is compacted, the thickness of the adhesive along the Z direction is in the range of 0.2mm to 0.4mm, specifically 0.2mm, 0.25mm, 0.3mm, 0.35mm, or 0.4mm.

[0092] In some embodiments, please refer to Figure 8 As shown, the carrier 2 may include a limiting sidewall 221. The side 42 where the electrical connection portion is not formed is disposed opposite to and spaced apart from the limiting sidewall 221. A predetermined interval D1 may exist between the limiting sidewall 221 and the side 42 where the electrical connection portion is not formed. This interval D1 is a dimension set along the Y direction, satisfying 0.4mm ≤ D1 ≤ 0.6mm. Specifically, the interval D1 may be in the range of 0.4mm~0.45mm, 0.45mm~0.5mm, 0.5mm~0.55mm, 0.55mm~0.6mm, 0.4mm~0.5mm, 0.5mm~0.6mm, or 0.45mm~0.55mm. In detail, the specific value of the interval distance D1 can be 0.4mm, 0.41mm, 0.42mm, 0.43mm, 0.44mm, 0.45mm, 0.46mm, 0.47mm, 0.48mm, 0.49mm, 0.5mm, 0.51mm, 0.52mm, 0.53mm, 0.54mm, 0.55mm, 0.56mm, 0.57mm, 0.58mm, 0.59mm, or 0.6mm.

[0093] In some embodiments, please refer to Figure 8 As shown, the limiting sidewall 221 can limit the electrical connection portion where the sidewall 42 is not formed, thereby restricting the printed element substrate 4 from moving along the edge of the sidewall 42. Figure 8 The distance of movement in the width direction shown in the view is to make the printing accuracy of the printing element substrate 4 relatively high, thereby making the printing quality of the ink cartridge relatively good. However, the limiting sidewall 221 does not need to abut against the side 42 where the electrical connection part is not formed. The reason is that during the bonding process between the carrier 2 and the printing element substrate 4, especially during the process of pressing the carrier 2 and the printing element substrate 4 together to compact the adhesive, the thickness of the adhesive along the Z direction will decrease. Correspondingly, the adhesive will move along the Z direction. Figure 8In the perspective shown, the adhesive flows in the width direction, squeezing outwards the air surrounding it. If the limiting sidewall 221 abuts against the side 42 where the electrical connection is not formed, there is no venting or overflow space between the limiting sidewall 221 and the side 42 where the electrical connection is not formed. This causes the adhesive to flow mainly towards the outlet below the ink supply channel 21, making the ink supply channel 21 easily blocked by the cured adhesive. Ink then cannot flow from the ink supply channel 21 to the ink supply port 41, potentially leading to printing failure of the ink cartridge. Therefore, a set distance D1 is required between the limiting sidewall 221 and the side 42 where the electrical connection is not formed. This space serves as both venting and overflow space. During the compaction of the adhesive, it is less likely to flow towards the outlet below the ink supply channel 21, and the outlet below the ink supply channel 21 is less likely to be blocked, thus ensuring reliable printing function of the ink cartridge. Although there is a gap D1 between the limiting sidewall 221 and the side 42 not formed by the electrical connection portion, the gap D1 is relatively small, the distance that the printing element substrate 4 can move is relatively small, and the impact on the printing accuracy of the printing element substrate 4 is relatively small.

[0094] In some embodiments, please refer to Figure 8 As shown, the carrier 2 includes a recess 22, and at least a portion of the structure of the printing element substrate 4 is located within the recess 22. With this configuration, the structural compactness between the carrier 2 and the printing element substrate 4 is relatively high, thereby reducing the space occupied by the ink cartridge in the image forming apparatus. The recess 22 includes the aforementioned limiting sidewall 221 and a recessed bottom wall 222, on which the aforementioned ink supply channel 21 is provided.

[0095] In some other embodiments (not shown in the figures), the carrier may include a downwardly protruding protrusion structure, which may include a limiting sidewall, and the bottom surface of the carrier may be provided with an ink supply channel.

[0096] The following content of this article mainly uses the example of "the recessed part of the carrier including the limiting sidewall" to describe the ink cartridge.

[0097] In some embodiments, please refer to Figure 8 As shown, the recess 22 includes two spaced-apart limiting sidewalls 221 facing each other, and two spaced-apart electrical connection portions of the printed element substrate that are not formed on the sidewalls 42 are located between the two limiting sidewalls 221. Wherein, in Figure 8 In the view shown, there can be a gap distance D1 between the left limiting sidewall 221 and the left side of the electrical connection portion that is not formed 42, and there can also be a gap distance D1 between the right limiting sidewall 221 and the right side of the electrical connection portion that is not formed 42.

[0098] In some embodiments, please refer to Figure 8 As shown, the recessed bottom wall 222 may include a planar portion, with the supported surface 44 of the printing element substrate 4 facing the planar portion and the supported surface 44 bonded to the planar portion. The planar portion may extend from around the outlet below the ink supply channel 21 to the limiting sidewall 221.

[0099] In some other embodiments (not shown in the figures), the recessed bottom wall may include a series of grooves or pits arranged to accommodate a portion of the cured adhesive, thereby increasing the bonding force between the adhesive and the recessed bottom wall by increasing the contact area between them.

[0100] In some embodiments, the ink cartridge may further include a sealant (not shown in the figure, such as a sealant, sealant adhesive, or sealing strip), which may be disposed between the limiting sidewall 221 and the side 42 where the electrical connection portion is not formed, and the limiting sidewall 221 and the side 42 where the electrical connection portion is not formed are sealed together by the sealant. With this arrangement, on the one hand, the sealant can reduce the possibility of impurities outside the ink cartridge entering the ink supply channel 21 through the gap between the carrier 2 and the printing element substrate 4, thereby ensuring the smooth flow of the ink supply channel 21. The sealant can also reduce the possibility of ink located in the ink supply channel 21 flowing to the outside of the ink cartridge through the gap between the carrier 2 and the printing element substrate 4. On the other hand, even if there is a distance D1 between the limiting sidewall 221 and the side 42 where the electrical connection portion is not formed, the limiting sidewall 221 can still provide a more reliable limiting effect on the side 42 where the electrical connection portion is not formed by the sealant.

[0101] After the printed element substrate 4 is bonded to the carrier 2, and after the adhesive is compacted and cured, a sealant can be placed in the space between the limiting sidewall 221 and the side 42 where the electrical connection portion is not formed.

[0102] In some embodiments, please refer to Figure 9 As shown, the recess 22, projected onto the projection surface of the carrier 2 along the height direction of the ink cartridge, is rectangular. Therefore, the structure of the recess 22 with its limiting sidewall is relatively simple, and its manufacturing difficulty is relatively low.

[0103] In some embodiments, the limiting sidewall 221 is parallel to the side 42 where the electrical connection portion is not formed. Both the limiting sidewall 221 and the side 42 where the electrical connection portion is not formed are parallel to directions Z and X, and both are perpendicular to direction Y.

[0104] In some other embodiments, the ink cartridge's receiving cavity may include at least two ink storage chambers and at least two filter chambers. The ink cartridge may include at least two filters, with each ink storage chamber connected to a separate filter chamber, and each ink storage chamber and its corresponding filter chamber separated by a separate filter. The carrier may be provided with at least two ink supply channels, each ink supply channel connected to a separate filter chamber. The printing element substrate may be provided with at least two ink supply ports, each ink supply port connected to a separate ink supply channel. Each ink storage chamber may store ink of a corresponding color. Each color of ink can be transferred to the printing medium through the corresponding filter chamber, the corresponding ink supply channel, and the corresponding ink supply port. When at least two different colors of ink are transferred to the printing medium, they can be mixed to form colored text or colored images. Other structural configurations of the ink cartridge can refer to the description above and will not be repeated here. For example, the structure of the ink cartridge may be as follows: Figure 10 As shown. Please refer to... Figure 11 As shown, the printing element substrate 4 can be provided with three ink supply ports 41, such as a first ink supply port 411, a second ink supply port 412, and a third ink supply port 413, which are arranged at intervals along the Y direction. Please refer to... Figure 12 As shown, the receiving cavity 11 of the housing 1 may include three ink storage cavities 111, such as a first ink storage cavity 111a, a second ink storage cavity 111b, and a third ink storage cavity 111c. The receiving cavity 11 of the housing 1 may also include three filter cavities 112, such as a first filter cavity 112a, a second filter cavity 112b, and a third filter cavity 112c. The first ink storage cavity 111a is connected to the first filter cavity 112a, the second ink storage cavity 111b is connected to the second filter cavity 112b, and the third ink storage cavity 111c is connected to the third filter cavity 112c. Figure 13 Please refer to the cross-sectional view shown. Figure 14 As shown, the carrier 2 can be provided with three ink supply channels 21, such as a first ink supply channel 211, a second ink supply channel 212, and a third ink supply channel 213. A first filter chamber 112a is connected to the first ink supply channel 211, a second filter chamber 112b is connected to the second ink supply channel 212, and a third filter chamber 112c is connected to the third ink supply channel 213. The first ink supply channel 211 is connected to the first ink supply port 411, the second ink supply channel 212 is connected to the second ink supply port 412, and the third ink supply channel 213 is connected to the third ink supply port 413. Please refer to... Figure 14 As shown, the electrical connection portion of the printed element substrate 4 is not formed on the side 42 and the limiting sidewall 221 of the carrier 2 has a set interval distance D1, which also satisfies 0.4mm≤D1≤0.6mm.

[0105] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An ink cartridge, characterized in that, The ink cartridge includes a carrier and a printing element substrate; The carrier supports the printing element substrate, the carrier is provided with an ink supply channel, and the carrier includes a limiting sidewall; The printing element substrate is provided with an ink supply port, which is connected to the ink supply channel. The printing element substrate also includes an electrical connection portion without a side surface, which is disposed opposite to and spaced apart from the limiting sidewall. The limiting sidewall and the side without the electrical connection portion have a set interval distance D1, which satisfies 0.4mm≤D1≤0.6mm.

2. The ink cartridge according to claim 1, characterized in that, The carrier includes a recess, and at least a portion of the structure of the printed element substrate is located within the recess; The recessed portion includes the limiting sidewall, and the recessed bottom wall of the recessed portion is provided with the ink supply channel.

3. The ink cartridge according to claim 2, characterized in that, The recess includes two spaced-apart limiting sidewalls facing each other, and the printed element substrate includes two spaced-apart electrical connection portions without sidewalls facing away from each other, with the two electrical connection portions without sidewalls located between the two limiting sidewalls.

4. The ink cartridge according to claim 2, characterized in that, The recessed bottom wall includes a planar portion, and the printed element substrate includes a supported surface, the supported surface facing the planar portion, and the supported surface being bonded to the planar portion.

5. The ink cartridge according to claim 2, characterized in that, The recessed portion, projected onto the projection surface of the carrier along the height direction of the ink cartridge, is rectangular.

6. The ink cartridge according to claim 1, characterized in that, The limiting sidewall and the electrical connection portion are not parallel to each other.

7. The ink cartridge according to claim 1, characterized in that, The ink cartridge also includes a sealant disposed between the limiting sidewall and the side of the electrical connection portion that is not formed, and the limiting sidewall and the side of the electrical connection portion are sealed together by the sealant.

8. The ink cartridge according to claim 1, characterized in that, The ink cartridge also includes an electrical wiring board, and the printing element board also includes an electrical connection portion forming a side surface, wherein the plane in which the electrical connection portion forms a side surface intersects with the plane in which the electrical connection portion does not form a side surface. The electrical connection portion forms a side that connects to the electrical wiring substrate, while the electrical connection portion without a side is separately disposed from the electrical wiring substrate.

9. The ink cartridge according to any one of claims 1 to 8, characterized in that, The ink cartridge includes a housing for containing ink, and the housing is detachably connected to the carrier, integrally formed, bonded or welded.

10. The ink cartridge according to claim 9, characterized in that, The cartridge body is provided with an ink storage chamber and a filter chamber, and the ink storage chamber is connected to the ink supply channel through the filter chamber.

Images