An ink cartridge

Abstract

The present disclosure relates to the technical field of printing equipment, and particularly provides an ink cartridge, which comprises a cartridge body and a cartridge cover, the inside of the cartridge body is provided with an ink storage cavity, the cartridge cover covers the top end of the cartridge body, one side of the cartridge cover facing the ink storage cavity is provided with at least one pressure control shell, the inside of the pressure control shell is provided with a pressure control cavity, the pressure control cavity is provided with an ink suction component, the bottom of the cartridge body is provided with at least one filter seat facing the pressure control cavity, the filter seat is provided with a filter cavity, the filter cavity is provided with a filter screen, the bottom end of the pressure control shell is arranged around the top end of the filter seat, the top end of the filter seat extends into the inside of the pressure control cavity, so that the filter screen abuts against the ink suction component. According to the present disclosure, the pressure control shell is arranged around the top end of the filter seat, the contact area of the ink suction component and the filter screen can be increased, the contact stability between the ink suction component and the filter screen can be ensured, and the printing quality can be ensured.

Description

Technical Field

[0001] This disclosure relates to the field of printing equipment technology, and in particular to an ink cartridge. Background Technology

[0002] Inkjet printers typically use ink cartridges to supply ink. The ink cartridge contains main components such as an ink tank, printhead assembly, and chip. Driven by a printing signal, ink is ejected through the printhead onto recording media such as paper to form characters or graphics. Common inkjet printers include piezoelectric inkjet printers and thermal inkjet printers.

[0003] In existing ink cartridges with printheads, a sponge block is typically used in the ink storage chamber to control ink pressure. However, the sponge block and the filter screen do not adhere well, resulting in discontinuous ink delivery to the printhead, making it difficult to guarantee print quality and leading to a poor user experience. Summary of the Invention

[0004] This disclosure is made in view of the above-mentioned problems. This disclosure provides an ink cartridge.

[0005] According to one aspect of this disclosure, an ink cartridge is provided, comprising: The box body has an ink storage cavity inside. A lid that covers the top of the box body; The side of the box cover facing the ink storage cavity is provided with at least one pressure control housing, the pressure control housing is provided with a pressure control cavity, and the pressure control cavity is provided with an ink absorption component; At least one filter holder is provided at the bottom of the housing facing the pressure control cavity. A filter cavity is provided in the filter holder, and a filter is provided in the filter cavity. The bottom end of the pressure control housing is arranged around the top end of the filter holder. The top end of the filter holder extends into the interior of the pressure control cavity, so that the filter abuts against the ink absorption component.

[0006] Furthermore, according to one aspect of this disclosure, in an ink cartridge, the top area of ​​the filter holder is smaller than the bottom area of ​​the pressure control chamber, and the filter abuts against a portion of the bottom surface of the ink-absorbing component.

[0007] Furthermore, according to one aspect of this disclosure, an ink cartridge has a connecting hole near its bottom end in the pressure control housing, the connecting hole connecting the ink storage chamber and the pressure control chamber.

[0008] In addition, according to one aspect of the present disclosure, the cartridge cover is provided with at least one filling hole corresponding to the ink storage cavity, the filling hole being used to replenish ink to the ink storage cavity; The cover is provided with at least one air vent corresponding to the pressure control chamber, and the air vent is used to connect the pressure control chamber to the outside atmosphere.

[0009] Furthermore, according to one aspect of this disclosure, an ink cartridge includes an ink storage chamber comprising a plurality of spaced chambers, a pressure control housing disposed on the cartridge cover facing each of the chambers, and a filter holder disposed on the bottom of the cartridge body facing each of the chambers.

[0010] Furthermore, according to one aspect of this disclosure, an ink cartridge has a filling hole and an air vent provided on the cartridge cover facing each of the chambers.

[0011] Furthermore, according to one aspect of this disclosure, both the filling hole and the air vent are provided with sealing components. The sealing component of the filling hole can be opened when ink is added to the ink storage chamber, and the sealing component of the air vent can be removed when the ink cartridge is in use.

[0012] Furthermore, according to one aspect of this disclosure, an ink cartridge also includes: A protective cover is provided at one end of the ink cartridge, and a protective plate is provided at the bottom of the protective cover, which is provided at the bottom of the filter chamber. The inkjet head is located on the bottom outer side of the cartridge body and communicates with the filter chamber. The protective plate protects the inkjet head.

[0013] Furthermore, according to one aspect of this disclosure, in an ink cartridge, the protective cover is snap-fitted with the cartridge body and / or the cartridge cover, and the protective cover can be removed when using the ink cartridge.

[0014] Furthermore, according to one aspect of this disclosure, an ink cartridge also includes: The chip is disposed on the outer wall of the housing and is electrically connected to the inkjet head.

[0015] Furthermore, according to one aspect of this disclosure, an ink cartridge has a sealing component for the air vent. The sealing component is disposed on the top of the cartridge cover to seal the air vent. The sealing component is connected to the protective cover. When the ink cartridge is used, the sealing component is removed at the same time as the protective cover is removed, so that the air vent is in communication with the outside atmosphere.

[0016] Furthermore, according to one aspect of this disclosure, the cartridge cover is provided with a plurality of air guide holes, and the cartridge cover is also provided with at least one air guide groove, wherein at least one of the air guide holes cooperates with the sealing component through the air guide groove.

[0017] According to an embodiment of the present disclosure, by arranging the pressure control housing around the top of the filter holder, the contact area between the ink absorption component, such as a sponge block, and the filter can be increased, ensuring the stability of the contact between the ink absorption component and the filter, preventing ink dripping, and achieving stable pressure control of the ink. The ink in the pressure control chamber can be stably replenished into the filter chamber for stable ejection, ensuring print quality and improving user experience. Attached Figure Description

[0018] The above and other objects, features, and advantages of this disclosure will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this disclosure and form part of the specification. They are used together with the embodiments of this disclosure to explain the disclosure and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0019] Figure 1 This is a perspective view of an ink cartridge according to Embodiment 1 of this disclosure; Figure 2 This is a perspective view of an ink cartridge according to Embodiment 1 of this disclosure; Figure 3 This is a top view schematic diagram of an ink cartridge according to Embodiment 1 of this disclosure; Figure 4 for Figure 3 Schematic cross-section view along the middle AA; Figure 5 This is a perspective view of the box lid according to Embodiment 1 of this disclosure; Figure 6 This is a perspective view of an ink cartridge according to Embodiment 1 of this disclosure, excluding the protective cover; Figure 7 This is a perspective view of an ink cartridge according to Embodiment 2 of this disclosure; Figure 8 This is a perspective view of an ink cartridge according to Embodiment 2 of this disclosure; Figure 9 This is a top view schematic diagram of an ink cartridge according to Embodiment 2 of this disclosure; Figure 10 for Figure 9 Schematic cross-section of the middle edge BB; Figure 11 for Figure 9 Cross-sectional view of the center line CC; Figure 12 This is a perspective view of the box body according to Embodiment 2 of this disclosure; Figure 13 This is a perspective view of the box lid according to Embodiment 2 of this disclosure; Figure 14 This is a perspective view of the box lid according to Embodiment 2 of this disclosure; Figure 15 This is a perspective view of an ink cartridge according to Embodiment 3 of this disclosure; Figure 16 This is a cross-sectional schematic diagram of an ink cartridge according to Embodiment 3 of this disclosure; Figure 17 This is a perspective view of an ink cartridge according to Embodiment 3 of this disclosure; Figure 18 This is a cross-sectional schematic diagram of an ink cartridge according to Embodiment 3 of this disclosure; Figure 19 This is a top view of the box lid according to Embodiment 3 of this disclosure; Figure 20 This is a top view of the box lid according to Embodiment 3 of the present disclosure, showing a sealing film.

[0020] Explanation of reference numerals in the attached figures: Ink cartridge 100, cartridge body 101, ink storage chamber 111, filter holder 112, filter chamber 113, first chamber 114, second chamber 115, third chamber 116, partition 117, snap-fit ​​shaft 118, cartridge cover 102, filling hole 121, sealing plug 122, pressure control housing 123, pressure control chamber 124, ink absorption component 125, connecting hole 126, air vent 127, sealing membrane 128, vent 181, snap-fit ​​block 129, protective cover 103, protective plate 131, fixing cover 132, sealing part 133, air vent groove 134, protective component 104, chip 105. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this disclosure more apparent, exemplary embodiments according to this disclosure will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this disclosure, and not all embodiments of this disclosure. It should be understood that this disclosure is not limited to the exemplary embodiments described herein.

[0022] This disclosure provides an ink cartridge that can increase the contact area between the ink-absorbing component and the filter screen, ensuring the stability of the contact between the ink-absorbing component and the filter screen, and guaranteeing print quality.

[0023] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0024] Example 1 like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, Embodiment 1 of this disclosure provides an ink cartridge 100 for an inkjet printer, comprising: a cartridge body 101 and a cartridge cover 102; The cartridge 101 is nearly rectangular in shape and can be made of plastic. Inside the cartridge 101 is an ink storage chamber 111 for storing ink. The top of the cartridge 101 has a large opening and the bottom protrudes downward at the position of the inkjet head. The lid 102 is slightly larger in length and width than the box body 101. It can be made of plastic. The lid 102 covers the top of the box body 101. The lid 102 and the box body 101 can be snapped together for easy assembly. At least one pressure control housing 123 is provided on the side of the cover 102 facing the ink storage chamber 111. The pressure control housing 123 is nearly cuboid in shape and has a large opening at the bottom. A pressure control chamber 124 is provided inside the pressure control housing 123. An ink absorption component 125 is provided in the pressure control chamber 124. The ink absorption component 125 can be a sponge block, which can hold the ink, allow the ink to pass through, and achieve pressure control of the ink. At least one filter holder 112 is disposed at the bottom of the housing 101 facing the pressure control chamber 124. A filter chamber 113 is disposed within the filter holder 112, and a filter (not shown in the figure) is disposed within the filter chamber 113. The bottom end of the pressure control housing 123 surrounds the top end of the filter holder 112, and the top end of the filter holder 112 extends into the interior of the pressure control chamber 124, causing the filter to abut against the ink absorption component 125. Ink can be smoothly delivered from the ink absorption component 125 to the filter, and then to the inkjet head.

[0025] The filter screen can capture foreign objects in the ink, such as dust or impurities. The ink in the ink storage chamber 111 is supplied to the inkjet head through the filter screen and the filter chamber 113, so as to avoid quality defects in the printed traces.

[0026] By setting the pressure control housing 123 around the top of the filter holder 112, accurate positioning between the cover 102 and the body 101 can be achieved, which facilitates the assembly between the cover 102 and the body 101.

[0027] Because the ink-absorbing component 125 is located in the pressure control housing 123, if the ink cartridge 100 needs to be recycled, the ink-absorbing component 125 can be removed at the same time as the cartridge cover 102, saving process and time.

[0028] In this embodiment, the ink cartridge 100, by surrounding the top of the filter holder 112 with the pressure control housing 123, can increase the contact area between the ink absorption component 125 (e.g., the sponge block) and the filter, ensuring the stability of the contact between the ink absorption component 125 and the filter, preventing ink dripping, and achieving stable pressure control of the ink. The ink in the pressure control chamber 124 can be stably replenished into the filter chamber 113 for stable ejection, ensuring print quality and improving user experience.

[0029] In some possible implementations, such as Figure 4 , Figure 5As shown, the top area of ​​the filter holder 112 is smaller than the bottom area of ​​the pressure control chamber 124. The filter screen abuts against part of the bottom surface of the ink absorption component 125, that is, the top of the filter screen can be completely connected to the ink absorption component 125, thereby ensuring the adhesion stability between the ink absorption component 125 and the filter screen.

[0030] In some possible implementations, such as Figure 4 , Figure 5 As shown, the pressure control housing 123 has a connecting hole 126 near its bottom. The connecting hole 126 can be a round hole or a square hole. The connecting hole 126 connects the ink storage chamber 111 and the pressure control chamber 124. When the ink suction component 125 is short of ink, the ink in the ink storage chamber 111 can be automatically replenished to the ink suction component 125 through the connecting hole 126, so that the ink suction component 125 will not run out of ink and printing will continue.

[0031] In some possible implementations, such as Figure 3 , Figure 4 , Figure 5 As shown, the cover 102 is provided with at least one filling hole 121 corresponding to the ink storage cavity 111. The filling hole 121 is used to replenish ink to the ink storage cavity 111. When the ink in the ink storage cavity 111 is used up, ink can be replenished to the ink storage cavity 111 through the filling hole 121, so that the ink cartridge 100 can continue to be used, reducing waste and lowering printing costs. The cartridge cover 102 is provided with at least one air vent 127 corresponding to the pressure control chamber 124. The air vent 127 is used to connect the pressure control chamber 124 to the outside atmosphere. During the use of the ink cartridge 100, ink consumption will change the air pressure inside the pressure control chamber 124. By setting the air vent 127 to supplement the air intake, the air pressure inside the pressure control chamber 124 is kept stable, the ink output is more stable, and the printing quality is guaranteed.

[0032] In some possible implementations, such as Figure 1 , Figure 3 As shown, both the filling hole 121 and the air vent 127 are equipped with sealing components. When adding ink to the ink storage chamber 111, the sealing component of the filling hole 121 can be opened, and the sealing component of the air vent 127 can be removed when using the ink cartridge 100.

[0033] When the ink cartridge 100 is in transit or in an unused state, the sealing component can prevent ink from leaking from the filling hole 121 and the air vent 127, thus ensuring the product quality of the ink cartridge 100.

[0034] The sealing component used in the filling hole 121 is a sealing plug 122, such as a rubber plug. The sealing plug 122 can be opened when ink is added to the ink storage chamber 111, and closed after the ink is added to continue sealing the filling hole 121.

[0035] The sealing component used in the air vent 127 is a sealing film 128. The sealing film 128 is adhered to the cartridge cover 102. When using the ink cartridge 100, the sealing film 128 can be removed, and the air vent 127 is in a connected state.

[0036] In some possible implementations, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the ink cartridge 100 also includes: a protective cover 103 and an inkjet head (the inkjet head is not shown in the figure). The protective cover 103 is roughly C-shaped and can be made of plastic. The protective cover 103 is located at one end of the ink cartridge 100. A protective plate 131 is located at the bottom of the protective cover 103. The protective plate 131 is located at the bottom of the filter chamber 113. A protective component 104 is located on the side of the protective plate 131 adjacent to the inkjet head to protect the inkjet head. The protective component 104 can be a protective pad made of sponge or porous material. The inkjet head includes precision components such as nozzles and energy generators (thermal or piezoelectric), which are responsible for atomizing ink and spraying it onto the recording medium. The inkjet head is located on the bottom outer side of the cartridge 101 and communicates with the filter chamber 113. The protective component 104 on the protection plate 131 protects the inkjet head.

[0037] In some possible implementations, such as Figure 1 , Figure 4 , Figure 6 As shown, the protective cover 103 is snapped together with the cartridge body 101 and / or the cover 102, and the protective cover 103 can be removed when using the ink cartridge 100.

[0038] The top of the cover 102 is provided with a snap-fit ​​block 129, the end of the box body 101 is provided with a snap-fit ​​shaft 118, the top of the protective cover 103 is connected to the snap-fit ​​block 129, and the bottom of the protective cover 103 is connected to the snap-fit ​​shaft 118, so that disassembly and assembly can be achieved.

[0039] In some possible implementations, such as Figure 6 As shown, the ink cartridge 100 also includes a chip 105, which is disposed on the outer wall of the cartridge body 101. The chip 105 is electrically connected to the inkjet head and is used to record information such as ink usage and serial number. In addition, the protective cover 103 is also used to protect the chip 105 and prevent damage to the chip 105 if the ink cartridge 100 is dropped.

[0040] In this embodiment, the ink cartridge 100 and ink storage chamber 111 have only one chamber, so they can only use one color of ink for printing, such as black. However, they can also be filled with other colors of ink, making them suitable for monochrome printing. If color printing is required, the printer needs to install multiple ink cartridges 100.

[0041] Example 2 like Figures 7-14 As shown, Embodiment 2 of this disclosure provides an ink cartridge 100, which differs from Embodiment 1 in that: the ink storage chamber 111 in this embodiment includes multiple spaced chambers, the cartridge cover 102 is provided with multiple pressure control housings 123, and the bottom of the cartridge body 101 is provided with multiple filter holders 112.

[0042] In some possible implementations, such as Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 As shown, the ink storage chamber 111 includes multiple spaced chambers, including three chambers: a first chamber 114, a second chamber 115, and a third chamber 116. The first chamber 114 and the second chamber 115 are arranged along the length of the cartridge body 101, and the third chamber 116 is arranged along the width of the cartridge body 101. A pressure-regulating housing 123 is provided on the lid 102 facing each chamber, and a filter holder 112 is provided on the bottom of the cartridge body 101 facing each chamber.

[0043] Each filter holder 112 is provided with a filter chamber 113, and a filter screen (not shown in the figure) is provided in the filter chamber 113. The bottom end of each pressure control housing 123 is arranged around the top end of the filter holder 112, and the top end of the filter holder 112 extends into the interior of the pressure control chamber 124, so that the filter screen abuts against the ink absorption component 125. Ink can be smoothly delivered from the ink absorption component 125 to the filter screen and then to the inkjet head.

[0044] In some possible implementations, such as Figure 10 , Figure 11 As shown, the ink storage chamber 111 is divided into each chamber by a partition 117, which is integrally formed with the side wall of the cartridge body 101. With this arrangement, each chamber can store ink of different colors, and color printing can be performed using only one ink cartridge 100, which simplifies the structure of the printer.

[0045] In some possible implementations, such as Figure 7 , Figure 9 , Figure 11 , Figure 12 , Figure 13 As shown, the lid 102 is provided with a filling hole 121 and an air vent 127 facing each chamber, which can replenish ink to each chamber individually and stabilize the pressure.

[0046] In this embodiment, multiple filling holes 121 and multiple air vents 127 are all provided with sealing components. When adding ink to the ink storage chamber 111, the sealing components of the filling holes 121 can be opened, and the sealing components of the air vents 127 can be removed when using the ink cartridge 100.

[0047] Example 3 like Figures 15-20 As shown, Embodiment 3 of this disclosure provides an ink cartridge 100. Unlike Embodiments 1 and 2, the sealing component of the air vent 127 in this embodiment does not need to be removed separately. Instead, the sealing component is connected to the protective cover 103. When removing the protective cover 103, the sealing component can be removed at the same time, which simplifies the operation steps of using the ink cartridge 100 and avoids the phenomenon that the air vent 127 is not opened due to failure to tear the sealing film 128.

[0048] like Figure 15 , Figure 16 As shown, for an ink cartridge 100 with only one chamber in the ink storage cavity 111, the cartridge cover 102 also has only one vent 127. The vent 127 is equipped with a sealing component, which is a blocking part 133. The blocking part 133 is located at the top of the cartridge cover 102 to seal the vent 127. The blocking part 133 is connected to the protective cover 103, and the protective cover 103 is correspondingly equipped with a fixing cover 132. The top of the blocking part 133 is equipped with a protrusion. The top of the blocking part 133 is engaged with the fixing cover 132 to form a fixed structure. The bottom of the blocking part 133 is in close contact with the vent 127 to form a sealing structure. Since the protective cover 103 must be removed when using the ink cartridge 100, the blocking part 133 is removed at the same time as the protective cover 103, so that the vent 127 can be connected to the outside atmosphere. The operation is relatively simple.

[0049] In some possible implementations, the structure of the sealing part 133 is not fixed, as long as it can block the air vent and be stably connected to the protective cover 103.

[0050] like Figure 17 , Figure 18 , Figure 19As shown, for an ink cartridge 100 with three chambers in the ink storage cavity 111, the cartridge cover 102 is also provided with three air guide holes 127. The three air guide holes 127 are arranged close together. The first air guide hole 127 is located directly below the sealing part 133. The cartridge cover 102 is also provided with at least two air guide grooves 134. The second air guide hole 127 and the third air guide hole 127, which are far away from the sealing part 133, respectively cooperate with the sealing part 133 through the air guide grooves 134. The ends of the two air guide grooves 134 are adjacent to and spaced apart from the first air guide hole 127. The top of the sealing part 133 is provided with a protrusion. The top of the sealing part 133 is engaged with the fixing cover 132 to form a fixing structure. The bottom of the sealing part 133 is in close contact with the first air guide hole 127 and the ends of the two air guide grooves 134 to form a sealing structure.

[0051] In addition, such as Figure 20 As shown, the cartridge cover 102 is also provided with a sealing film 128. The sealing film 128 seals most of the groove of the air guide groove 134 and the corresponding second air guide hole 127 and third air guide hole 127. Three vent holes 181 are provided on the sealing film 128 corresponding to the first air guide hole 127 and the ends of the two air guide grooves 134. Because the protective cover 103 must be removed when using the ink cartridge 100, the sealing part 133 is removed at the same time as the protective cover 103, so that the first air guide hole 127 located directly below the sealing part 133 can be connected to the outside atmosphere through the vent holes 181. The other two air guide holes 127 are indirectly connected to the outside atmosphere through the ends of the air guide grooves 134 and the vent holes 181, and there is no need to remove the sealing film 128, making the operation relatively simple. Of course, the sealing film 128 can also be removed, so that the three air guide holes 127 can be directly connected to the outside atmosphere.

[0052] The ink cartridge according to an embodiment of the present disclosure has been described above with reference to the accompanying drawings, and has the following advantages: By surrounding the top of the filter holder with the pressure control housing, the contact area between the ink absorption component, such as the sponge block, and the filter can be increased, ensuring the stability of the contact between the ink absorption component and the filter, preventing ink dripping, and achieving stable pressure control of the ink. The ink in the pressure control chamber can be stably replenished into the filter chamber for stable ejection, ensuring print quality and improving user experience.

[0053] The basic principles of this disclosure have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this disclosure are merely examples and not limitations, and should not be considered as essential features of each embodiment of this disclosure. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the scope of this disclosure to the necessity of employing the aforementioned specific details for implementation.

[0054] The block diagrams of devices, apparatuses, devices, and systems disclosed herein are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0055] Additionally, as used herein, the "or" used in a list of items beginning with "at least one" indicates a separate list, such that a list of, for example, "at least one of A, B, or C" means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word "exemplary" does not imply that the described example is preferred or better than other examples.

[0056] It should also be noted that in the systems and methods of this disclosure, the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions to this disclosure.

[0057] Various changes, substitutions, and modifications can be made to the technology described herein without departing from the teachings defined by the appended claims. Furthermore, the scope of the claims of this disclosure is not limited to the specific aspects of the processes, machines, manufactures, events, means, methods, and actions described above. Currently existing or later-developed processes, machines, manufactures, events, means, methods, or actions that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein can be utilized. Therefore, the appended claims include such processes, machines, manufactures, events, means, methods, or actions within their scope.

[0058] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the aspects shown herein, but rather to be carried out within the widest scope consistent with the principles and novel features disclosed herein.

[0059] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this disclosure to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations therein.

Claims

1. An ink cartridge, characterized in that, include: The box body (101) has an ink storage cavity (111) inside. A lid (102) covers the top of the box body (101); The cover (102) facing the ink storage cavity (111) is provided with at least one pressure control housing (123), the pressure control housing (123) is provided with a pressure control cavity (124), and the pressure control cavity (124) is provided with an ink absorption component (125). At least one filter holder (112) is provided at the bottom of the housing (101) facing the pressure control chamber (124). A filter chamber (113) is provided in the filter holder (112), and a filter screen is provided in the filter chamber (113). The bottom end of the pressure control housing (123) is arranged around the top end of the filter holder (112). The top end of the filter holder (112) extends into the interior of the pressure control chamber (124), so that the filter screen abuts against the ink absorption component (125).

2. The ink cartridge according to claim 1, characterized in that, The top area of ​​the filter holder (112) is smaller than the bottom area of ​​the pressure control chamber (124), and the filter abuts against part of the bottom surface of the ink absorption component (125).

3. The ink cartridge according to claim 1, characterized in that, The pressure control housing (123) has a connecting hole (126) near its bottom end, which connects the ink storage chamber (111) and the pressure control chamber (124).

4. The ink cartridge according to claim 1, characterized in that, The cover (102) is provided with at least one filling hole (121) corresponding to the ink storage cavity (111), and the filling hole (121) is used to replenish ink to the ink storage cavity (111); The cover (102) is provided with at least one air vent (127) corresponding to the pressure control chamber (124), and the air vent (127) is used to connect the pressure control chamber (124) to the outside atmosphere.

5. An ink cartridge according to claim 4, characterized in that, The ink storage chamber (111) includes multiple spaced chambers, and the cover (102) is provided with a pressure control housing (123) facing each of the chambers, and the bottom of the box body (101) is provided with a filter holder (112) facing each of the chambers.

6. An ink cartridge according to claim 5, characterized in that, The lid (102) is provided with a filling hole (121) and an air vent (127) facing each of the chambers.

7. An ink cartridge according to claim 4, characterized in that, Both the filling hole (121) and the air guide hole (127) are provided with sealing components. When adding ink to the ink storage chamber (111), the sealing component of the filling hole (121) can be opened. When using the ink cartridge, the sealing component of the air guide hole (127) can be removed, so that the air guide hole (127) can be connected to the outside atmosphere.

8. An ink cartridge according to claim 4, characterized in that, Also includes: A protective cover (103) is provided at one end of the ink cartridge, and a protective plate (131) is provided at the bottom of the protective cover (103), which is provided at the bottom of the filter chamber (113). The inkjet head is located on the bottom outer side of the housing (101) and communicates with the filter chamber (113). The protective plate (131) protects the inkjet head.

9. An ink cartridge according to claim 8, characterized in that, The protective cover (103) is snapped together with the cartridge body (101) and / or the cartridge cover (102), and the protective cover (103) can be removed when using the ink cartridge.

10. An ink cartridge according to claim 8, characterized in that, Also includes: Chip (105) is disposed on the outer side wall of the housing (101) and is electrically connected to the inkjet head.

11. An ink cartridge according to claim 8, characterized in that, The air vent (127) is provided with a sealing component. The sealing component is located on the top of the cartridge cover (102) to seal the air vent (127). The sealing component is connected to the protective cover (103). When using the ink cartridge, the sealing component is removed along with the protective cover (103), so that the air vent (127) is connected to the outside atmosphere.

12. An ink cartridge according to claim 11, characterized in that, The cover (102) is provided with a plurality of air guide holes (127), and the cover (102) is also provided with at least one air guide groove (134). At least one of the air guide holes (127) cooperates with the sealing component through the air guide groove (134).

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