Electro-fluid nozzle module with stable power supply form and ink-jet printing system

Abstract

The utility model relates to an electrofluid spray head module with a stable power supply form and an ink-jet printing system, and the electrofluid spray head module comprises a mounting seat which is provided with a mounting groove, and a positioning structure is arranged in the mounting groove; the electrofluid spray head comprises a positioning block, a spray head body and an electrode assembly, the spray head body is located in the mounting groove, the electrode assembly is electrically connected with the spray head body, the positioning block is arranged on the spray head body in a sleeving mode and electrically connected with the spray head body, and the positioning block abuts against the positioning structure; and the magnetic attraction power supply assembly is mounted at the bottom of the mounting groove, and the magnetic attraction power supply assembly is magnetically attracted to the positioning block and abuts against the positioning block, so that the magnetic attraction power supply assembly is stably and electrically connected with the positioning block. The mounting position of the electrofluid nozzle is positioned through abutting of the positioning block and the positioning structure, the positioning block is adsorbed and fixed through the magnetic attraction power supply assembly so as to fix the electrofluid nozzle, and meanwhile, power is supplied to the electrode assembly through the positioning block and the nozzle body, so that positioning mounting and power supply operation of the electrofluid nozzle are executed synchronously; and the mounting and dismounting efficiency of the electrofluid nozzle is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of inkjet printing technology, and in particular to an electrofluidic nozzle module with stable power supply form and an inkjet printing system. BACKGROUND

[0002] As an additive manufacturing technology, inkjet printing technology has the advantages of non-contact, large area, no need for mask, rapid manufacturing, low cost of finished products, and direct pattern manufacturing on planar / curved substrates, etc., and is a main manufacturing technology for printed electronics that will replace photolithography / vacuum long process technology (development, etching, exposure and cleaning, etc.), and is widely used in display, sensing, chip, energy, aerospace and other fields.

[0003] Electrofluidic printing technology applies the mechanism of electrohydrodynamics, and uses an electric field to pull liquid out of the nozzle to form a Taylor cone. Due to the high potential of the nozzle, the liquid at the nozzle is subjected to an electrically induced shear stress. When the local charge force exceeds the surface tension of the liquid, the charged liquid is ejected from the nozzle and then breaks into liquid columns or small droplets. By changing the flow rate, voltage, liquid properties and nozzle structure, different jet shapes and breakup mechanisms of electrofluidic printing modes can be formed, i.e. electrospinning, electrospraying and electrospray.

[0004] In related technologies, an electrode wire is arranged inside the electrofluidic nozzle, and the electrode wire is led out from the inside of the electrofluidic nozzle from the side of the electrofluidic nozzle and connected to an external power supply device to apply voltage to the inside of the electrofluidic nozzle.

[0005] However, when the electrofluidic nozzle is installed, not only does it need to be positioned and installed on the mounting seat, but also the electrode wire needs to be electrically connected to the power supply device. The installation of the electrofluidic nozzle and the power supply form operation are complicated, and cannot meet the demand for high efficiency disassembly and assembly of the electrofluidic nozzle. SUMMARY

[0006] The embodiments of the present application provide an electrofluidic nozzle module with stable power supply form and an inkjet printing system to solve the technical problem that the installation of the electrofluidic nozzle and the power supply form operation are complicated in related technologies, and cannot meet the demand for high efficiency disassembly and assembly of the electrofluidic nozzle.

[0007] In a first aspect, an electrofluidic nozzle module with stable power supply form is provided, comprising:

[0008] a mounting seat, wherein the mounting seat is provided with a mounting groove, and the mounting groove is provided with a positioning structure;

[0009] An electro-fluidic jet head comprises a locating block, a jet head body and an electrode assembly, the jet head body is located in the mounting slot, the electrode assembly is mounted inside the jet head body and electrically connected with the jet head body, the locating block is sleeved on the jet head body and electrically connected with the jet head body, and the locating block is in abutment with the locating structure.

[0010] A magnetic attraction power supply assembly is mounted on the bottom of the mounting slot, the magnetic attraction power supply assembly comprises a magnetic attraction element and a power supply element, the magnetic attraction element is magnetically attracted to the locating block, the power supply element is in abutment with the locating block, and the power supply element is stably electrically connected with the locating block.

[0011] In some embodiments, the bottom of the mounting slot is provided with a receiving groove, and the magnetic attraction power supply assembly is arranged in the receiving groove.

[0012] A wire hole is formed in the side surface of the mounting slot, the wire hole is communicated to the receiving groove, and the wire hole is suitable for the conductive wire to pass through, so as to facilitate the electrical connection between the magnetic attraction power supply assembly and the external power supply device by using the conductive wire.

[0013] In some embodiments, the magnetic attraction power supply assembly further comprises a mounting sleeve, and the mounting sleeve is embedded in the receiving groove.

[0014] The power supply element comprises a power supply ring, the power supply ring is sleeved on the magnetic attraction element, and the power supply ring passes through the mounting sleeve.

[0015] In some embodiments, the magnetic attraction element comprises a permanent magnet or an electromagnet.

[0016] In some embodiments, the jet head body comprises:

[0017] A main body part is made of a conductive material, the electrode assembly is electrically connected with the main body part, the locating block is sleeved on the main body part and electrically connected with the main body part.

[0018] A needle body part is made of an insulating material, the needle body part is in plug-in cooperation with the main body part, and the electrode assembly extends to a jetting position of the needle body part.

[0019] In some embodiments, the mounting seat is made of an insulating material.

[0020] In some embodiments, the locating structure comprises a locating sleeve, the locating sleeve is made of a metal material, a circumferential side surface of the locating sleeve is provided with an opening, the needle body part enters the locating sleeve from the side surface of the locating sleeve, the bottom surface of the locating block is in abutment with the top surface of the locating sleeve,

[0021] The positioning sleeve is embedded in the mounting groove, and a stepped surface is arranged on the groove wall of the mounting groove, and the bottom surface of the positioning sleeve abuts against the stepped surface.

[0022] In some embodiments, the positioning sleeve is rounded at the corners.

[0023] In some embodiments, the power supply form stable electrofluidic ejection head module further comprises a limiting assembly for abutting the electrofluidic ejection head in the mounting groove; the limiting assembly comprises:

[0024] A limiting plate is hingedly connected to one side of the mounting seat where the mounting groove is arranged, and the other end of the limiting plate is fixed to the mounting seat by a bolt, so that the limiting plate spans the mounting groove;

[0025] A limiting screw is threaded through the limiting plate, and when the limiting plate spans the mounting groove, the limiting screw extends into the mounting groove and abuts against the electrofluidic ejection head.

[0026] The technical solutions provided by the present application have the following beneficial effects:

[0027] The embodiments of the present application provide a power supply form stable electrofluidic ejection head module. When the electrofluidic ejection head is installed on the mounting seat, the electrofluidic ejection head is placed in the mounting groove, the positioning block abuts against the positioning structure, and the installation position of the electrofluidic ejection head is fixed, so that the consistency of the electrofluidic ejection head after installation each time is better. In addition, after the electrofluidic ejection head is placed in the mounting groove, the magnetic attraction power supply assembly magnetically attracts and adsorbs the positioning block through the magnetic attraction element, so as to fix the installation position of the electrofluidic ejection head, realize the quick installation and disassembly of the electrofluidic ejection head.

[0028] In addition, while the magnetic attraction element magnetically fixes the positioning block, the power supply element also abuts against the positioning block with the magnetic attraction element, so as to be electrically connected with the positioning block, and then the positioning block and the electrode assembly are electrically connected through the ejection head body, so as to realize the electrical connection between the power supply element and the electrode assembly. Therefore, while the electrofluidic ejection head is fixed, the electrode assembly is also electrically connected with the power supply element, which facilitates the power supply inside the electrofluidic ejection head. Therefore, the positioning and installation of the electrofluidic ejection head and the power supply operation are synchronously performed in the electrofluidic ejection head module, which is convenient and fast, and improves the installation and disassembly efficiency of the electrofluidic ejection head.

[0029] In a second aspect, a kind of inkjet printing system is provided, comprising the power supply form stable electrofluidic ejection head module as described above.

[0030] Another embodiment of the present application provides an inkjet printing system. Since the inkjet printing system comprises the above-mentioned power supply form stable electrofluidic ejection head module, the beneficial effects of the inkjet printing system are consistent with those of the power supply form stable electrofluidic ejection head module, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor based on these drawings.

[0032] Figure 1 A schematic view of the stable power supply form of the electro-fluidic nozzle module provided by the embodiments of the present application;

[0033] Figure 2 A schematic view of the stable power supply form of the electro-fluidic nozzle module provided by the embodiments of the present application;

[0034] Figure 3 A schematic view of the stable power supply form of the electro-fluidic nozzle module provided by the embodiments of the present application;

[0035] Figure 4 A schematic view of the stable power supply form of the electro-fluidic nozzle module provided by the embodiments of the present application;

[0036] Figure 5 A schematic view of the stable power supply form of the electro-fluidic nozzle module provided by the embodiments of the present application;

[0037] Figure 6 A schematic view of the stable power supply form of the electro-fluidic nozzle module provided by the embodiments of the present application;

[0038] Figure 7 A schematic view of the stable power supply form of the electro-fluidic nozzle module provided by the embodiments of the present application;

[0039] In the figure: 1, mounting seat; 11, positioning structure; 1a, mounting groove; 1b, accommodating groove; 1c, wire hole; 2, electro-fluidic nozzle; 21, nozzle body; 211, main body part; 212, needle body part; 22, electrode assembly; 221, electrode seat; 222, electrode wire; 23, positioning block; 24, elastic member; 3, magnetic attraction power supply assembly; 31, power supply member; 32, magnetic attraction member; 33, mounting sleeve; 4, limiting assembly; 41, limiting plate; 42, limiting screw. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. DETAILED DESCRIPTION

[0041] The embodiment of the present application provides a stable power supply form electrofluidic nozzle module and an inkjet printing system, which positions the mounting position of the electrofluidic nozzle through the abutment of the positioning block and the positioning structure, adsorbs and fixes the positioning block by using the magnetic attraction power supply assembly to fix the electrofluidic nozzle, and supplies power to the electrode assembly through the positioning block and the nozzle body, so that the positioning and mounting and the power supply operation of the electrofluidic nozzle are synchronously executed, which is convenient and fast, and improves the mounting and dismounting efficiency of the electrofluidic nozzle. The present application solves the technical problem that the mounting and power supply form operation of the electrofluidic nozzle is complicated in the related art, and cannot meet the demand of high-efficiency mounting and dismounting of the electrofluidic nozzle.

[0042] Referring to Figures 1-4 A stable power supply form electrofluidic nozzle module comprises a mounting seat 1, an electrofluidic nozzle 2 and a magnetic attraction power supply assembly 3. After the electrofluidic nozzle 2 is mounted on the mounting seat 1, the magnetic attraction power supply assembly 3 magnetically attracts and fixes the electrofluidic nozzle 2, and synchronously supplies power to the electrofluidic nozzle 2, so that the fixing and power supply operation of the electrofluidic nozzle 2 are synchronously executed, and the mounting and dismounting efficiency of the electrofluidic nozzle 2 is improved.

[0043] Referring to Figures 1-3 In the embodiment, the nozzle of the electrofluidic nozzle 2 extends out of the mounting slot 1a, and the nozzle of the electrofluidic nozzle 2 extends below the mounting seat 1.

[0044] In this way, during subsequent printing processing, since the nozzle of the electrofluidic nozzle 2 extends below the mounting seat 1, the nozzle of the electrofluidic nozzle 2 can be lowered as close to the printing plane as possible at this time, and is not affected by the mounting seat 1, so that the range of printing height adjustment is increased, and the printing quality is ensured.

[0045] Further, the mounting slot 1a is provided with a positioning structure 11, and the positioning structure 11 is used as a reference for the mounting position of the electrofluidic nozzle 2, so as to improve the consistency of each mounting of the electrofluidic nozzle 2.

[0046] Referring to Figures 2-4 In the embodiment, the nozzle of the electrofluidic nozzle 2 extends out of the mounting slot 1a, and the nozzle of the electrofluidic nozzle 2 extends below the mounting seat 1.

[0047] Specifically, the positioning structure 11 comprises a positioning surface, the groove wall of the mounting groove 1a is stepped to have a protruding portion to form the positioning surface, or a protruding block is fixed in the mounting groove 1a to form the positioning surface. The bottom surface of the positioning block 23 abuts against the positioning surface, so that the positioning of the mounting position of the fluid ejection head 2 is realized.

[0048] In the embodiment, the mounting seat 1 is made of insulating material, which can be a plastic part.

[0049] The insulating arrangement of the mounting seat 1 not only reduces the weight of the whole module, but also avoids the electrical connection between the magnetically attracted power supply assembly 3 and the mounting seat 1, eliminating the safety hazard. In addition, the mounting seat 1 does not generate electric field force, so that the electric field crosstalk caused by the electric field force at the mounting seat 1 during printing processing is avoided, and the printing quality is ensured.

[0050] Referring to Figures 2-4 In the embodiment, the positioning structure 11 comprises a positioning sleeve made of metal material, and the circumferential side surface of the positioning sleeve is provided with an opening for the ejection head body 21 to enter the positioning sleeve from the side surface of the positioning sleeve. After the ejection head body 21 enters the positioning sleeve, the circumferential outer surface of the ejection head body 21 is attached to the positioning sleeve.

[0051] Referring to Figures 2-4 Further, the positioning sleeve is embedded in the mounting groove 1a, the groove wall of the mounting groove 1a is provided with a stepped surface, and the bottom surface of the positioning sleeve abuts against the stepped surface. The stepped surface also positions the mounting position of the positioning sleeve. After the ejection head body 21 enters the positioning sleeve, the positioning block 23 is located above the positioning sleeve. By changing the positions of the positioning block 23 and the ejection head body 21, the bottom surface of the positioning block 23 is attached to the top surface of the positioning sleeve, the positioning and installation of the fluid ejection head 2 are realized, and the relative position between the fluid ejection head 2 and the mounting seat 1 is consistent when the fluid ejection head 2 is installed into the mounting groove 1a each time, thereby improving the consistency of the installation of the fluid ejection head 2.

[0052] In this way, after the ejection head body 21 is installed into the positioning sleeve, the positioning block 23 and the positioning sleeve are tightly attached, and the ejection head body 21 and the positioning sleeve are tightly attached, so as to ensure that the voltage is stably transmitted from the positioning block 23 to the ejection head body 21. In addition, the positioning sleeve is made of metal material, which has weak deformation ability. After the positioning block 23 abuts against the positioning sleeve, the positioning sleeve is not easy to deform, thereby ensuring the installation precision of the fluid ejection head 2.

[0053] Further, the corners of the positioning sleeve are arc transitioned. Since the positioning sleeve is subjected to voltage, the corners of the positioning sleeve are arc transitioned, so that the sharp end discharge is not easy to occur, the voltage at the fluid ejection head 2 is more stable, and the printing precision is ensured. In addition, the arc transitioned corners facilitate the installation of the positioning sleeve into the mounting groove 1a.

[0054] Referring to Figure 4 , Figure 6 andFigure 7 The nozzle body 21 comprises a main body 211 and a needle body 212. The main body 211 is made of conductive material, the electrode assembly 22 is electrically connected with the main body 211, and the positioning block 23 is sleeved on the main body 211 and electrically connected with the main body 211. The needle body 212 is made of insulating material, the needle body 212 is inserted and matched with the main body 211, and the electrode assembly 22 extends to the spraying position of the needle body 212.

[0055] Referring to Figure 4 , Figure 6 and Figure 7 , the main body 211 and the needle body 212 are in communication. Specifically, the main body 211 and the needle body 212 are inserted and matched to form a detachable connection of the main body 211 and the needle body 212, facilitating replacement of the needle body 212. The needle body 212 is located below the mounting seat 1, which can avoid the interference of the mounting seat 1 and be as close as possible to the printing plane. Since the needle body 212 is insulated, the functional liquid after being electrified will not cause electrochemical corrosion to the needle body 212, thereby maintaining the shape of the needle body 212, ensuring the consistency of multiple printing, ensuring the controllability of the landing position of printing, and ensuring the printing precision.

[0056] In this embodiment, the main body 211 and the needle body 212 are threadedly matched to be fixed.

[0057] Referring to Figure 4 , Figure 6 and Figure 7 , the electrode assembly 22 is arranged through the needle body 212 and the main body 211, and one end of the electrode assembly 22 extends to the nozzle of the needle body 212, and the electrode assembly 22 is electrically connected with the main body 211. Specifically, the electrode assembly 22 is located in the middle part of the needle body 212 and the main body 211, that is, the center lines of the electrode assembly 22, the needle body 212 and the main body 211 are consistent. Since the relative positions of the electrode assembly 22, the needle body 212 and the main body 211 are consistent, the flight path consistency of the printed droplets is better, and the printing consistency is improved. In addition, the electrode assembly 22 extends to the nozzle of the needle body 212 to apply voltage at the nozzle, and the electric field force is applied to the functional liquid closer to the ejection position of the functional liquid, so that the printed droplets are less affected by the electric field force crosstalk, and the printing precision is improved.

[0058] Referring to Figure 4 , Figure 6 and Figure 7Specifically, the electrode assembly 22 comprises an electrode seat 221 and an electrode wire 222, the electrode wire 222 is coaxially fixed on the electrode seat 221. The electrode seat 221 is inserted into the top end of the needle body 212, the electrode wire 222 is inserted into the needle body 212, and the electrode wire 222 extends to the injection port of the needle body 212. After the needle body 212 is inserted into the main body 211, the electrode seat 221 is partially located in the main body 211 and is electrically connected with the main body 211.

[0059] With reference to Figure 4 , Figure 6 and Figure 7 , further, the electro-fluid ejection head 2 further comprises an elastic member 24, the end of the main body 211, through which the needle body 212 is inserted, is provided with a matching hole, the elastic member 24 is installed in the matching hole, and the two ends of the elastic member 24 abut against the electrode seat 221 and the bottom of the matching hole respectively. With the insertion of the main body 211 and the needle body 212, the elastic member 24 presses the electrode seat 221. The elastic member 24 is made of conductive material. In this embodiment, the elastic member 24 comprises a spring.

[0060] In this way, the position of the electrode seat 221 is fixed by the abutment of the elastic member 24 against the electrode seat 221, and the electrode seat 221 and the main body 211 are electrically connected by the elastic member 24, so that the electrical connection between the electrode assembly 22 and the main body 211 is more stable, and stable power supply to the electrode assembly 22 through the main body 211 is ensured.

[0061] With reference to Figure 3-5 , the magnetic attraction power supply assembly 3 is installed on the bottom of the installation groove 1a. The magnetic attraction power supply assembly 3 comprises a magnetic attraction member 32 and a power supply member 31, the magnetic attraction member 32 is magnetically attracted to the positioning block 23, so that the power supply member 31 abuts against the positioning block 23, and the power supply member 31 is stably electrically connected with the positioning block 23. The power supply member 31 is electrically connected with an external power supply device.

[0062] In this way, the magnetic attraction member 32 magnetically attracts and fixes the positioning block 23, and the power supply member 31 abuts against the positioning block 23 together with the magnetic attraction member 32 to be electrically connected with the positioning block 23. The magnetic attraction member 32 ensures that the power supply member 31 abuts against the positioning block 23, and guarantees the stability of the electrical connection between the positioning block 23 and the power supply member 31. The power supply member 31 is electrically connected with the electrode assembly 22 through the ejection head body 21 and the electrical connection between the positioning block 23 and the electrode assembly 22. Therefore, when the electro-fluid ejection head 2 is positioned and fixed, the electrode assembly 22 is electrically connected with the power supply member 31, which facilitates the power supply to the inside of the electro-fluid ejection head 2. Therefore, the positioning and installation of the electro-fluid ejection head 2 and the power supply operation are simultaneously performed, which is convenient and fast, and improves the installation and dismounting efficiency of the electro-fluid ejection head 2.

[0063] With reference to Figure 3-5Specifically, the bottom of the mounting groove 1a is provided with a receiving groove 1b, and the magnetic attraction power supply assembly 3 is arranged in the receiving groove 1b. The power supply part 31 is flush with the bottom of the mounting groove 1a, or the power supply part 31 protrudes from the bottom of the mounting groove 1a.

[0064] In this way, the arrangement of the receiving groove 1b leaves a mounting space for the magnetic attraction power supply assembly 3.

[0065] Referring to Figure 2-5 Further, a wire hole 1c is formed in the side of the mounting groove 1a, the wire hole 1c is communicated to the receiving groove 1b, and the wire hole 1c is suitable for the conductive wire to pass through, so as to facilitate the electrical connection between the magnetic attraction power supply assembly 3 and the external power supply device by the conductive wire.

[0066] In this way, the arrangement of the wire hole 1c facilitates the wiring of the conductive wire, reasonably utilizes the structure layout, and improves the overall structure of the mounting seat 1.

[0067] Referring to Figure 3-5 The magnetic attraction power supply assembly 3 further comprises a mounting sleeve 33 embedded in the receiving groove 1b. The power supply part 31 comprises a power supply ring, the power supply ring is sleeved on the magnetic attraction part 32, and the power supply ring passes through the mounting sleeve 33.

[0068] In this way, the magnetic attraction power supply assembly 3 is provided as a separate mounting sleeve 33, a power supply ring and a magnetic attraction part 32, which are assembled and then installed in the receiving groove 1b. The arrangement of the mounting sleeve 33 protects the power supply ring and the magnetic attraction part 32, and improves the overall structure of the three. The mounting sleeve 33, the power supply ring and the magnetic attraction part 32 can be machined and assembled respectively, which meets the demand of mass production.

[0069] In the embodiment, the magnetic attraction part 32 comprises a permanent magnet or an electromagnet.

[0070] Referring to Figure 1 and Figure 2 The stable current fluid nozzle module further comprises a limiting assembly 4 for abutting the current fluid nozzle 2 in the mounting groove 1a, so as to avoid the current fluid nozzle 2 from moving randomly or even separating from the mounting seat 1.

[0071] Referring to Figure 1 and Figure 2 The limiting assembly 4 comprises a limiting plate 41 and a limiting screw 42. One end of the limiting plate 41 is hinged to the side of the mounting groove 1a, and the other end of the limiting plate 41 is fixed to the mounting seat 1 by a bolt, so that the limiting plate 41 spans the mounting groove 1a. The limiting screw 42 is threaded through the limiting plate 41, and when the limiting plate 41 spans the mounting groove 1a, the limiting screw 42 extends into the mounting groove 1a and abuts against the current fluid nozzle 2.

[0072] In this way, after the electro-fluidic nozzle 2 is installed into the installation groove 1a, the limiting plate 41 is rotated to cross the installation groove 1a, the free end of the limiting plate 41 is fixed to the installation base 1, and the limiting screw 42 is tightened to abut against the electro-fluidic nozzle 2, and in this embodiment, the limiting screw 42 abuts against the main body 211, so as to fix the electro-fluidic nozzle 2. When the electro-fluidic nozzle 2 needs to be disassembled, the limiting screw 42 is loosened, the free end of the limiting plate 41 is released, the limiting plate 41 is rotated to move away from the installation groove 1a, and then the electro-fluidic nozzle 2 can be conveniently taken out.

[0073] It should be noted that the limiting assembly 4 can assist in limiting the electro-fluidic nozzle 2 from being separated from the installation base 1. Because the experience of the installation worker is different, when the limiting screw 42 is tightened to abut against the electro-fluidic nozzle 2, the positioning block 23 may not abut against the power supply part 31, and therefore the magnetic attraction part 32 is arranged to ensure that the power supply part 31 is stably electrically connected with the positioning block 23.

[0074] The embodiment of the present application provides the electro-fluidic nozzle module with stable power supply, when the electro-fluidic nozzle 2 is installed on the installation base 1, the electro-fluidic nozzle 2 is placed into the installation groove 1a, the positioning block 23 abuts against the positioning structure 11 to position the installation position of the electro-fluidic nozzle 2, so that the consistency of the electro-fluidic nozzle 2 after installation each time is better. In addition, after the electro-fluidic nozzle 2 is placed into the installation groove 1a, the magnetic attraction power supply assembly 3 magnetically attracts and adsorbs the positioning block 23 through the magnetic attraction part 32, so as to fix the installation position of the electro-fluidic nozzle 2, and realize the quick installation and disassembly of the electro-fluidic nozzle 2.

[0075] In addition, while the magnetic attraction part 32 magnetically attracts and fixes the positioning block 23, the power supply part 31 abuts against the positioning block 23 together with the magnetic attraction part 32 to be electrically connected with the positioning block 23, and then the positioning block 23 and the electrode assembly 22 are electrically connected through the nozzle body 21, so as to realize the electrical connection between the power supply part 31 and the electrode assembly 22. Therefore, while the electro-fluidic nozzle 2 is positioned and fixed, the electrode assembly 22 is electrically connected with the power supply part 31, which facilitates the power supply inside the electro-fluidic nozzle 2. Therefore, the positioning and installation of the electro-fluidic nozzle 2 and the power supply operation of the electro-fluidic nozzle module are synchronously performed, which is convenient and fast, and improves the installation and disassembly efficiency of the electro-fluidic nozzle 2.

[0076] Another embodiment of the present application provides an inkjet printing system, which comprises the electro-fluidic nozzle module with stable power supply.

[0077] Another embodiment of the present application provides an inkjet printing system, because the inkjet printing system comprises the electro-fluidic nozzle module with stable power supply, the beneficial effects of the inkjet printing system are consistent with those of the electro-fluidic nozzle module with stable power supply, which will not be repeated here.

[0078] In the description of the present application, it should be noted that the terms "upper", "lower", and the like are used for indicating the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0079] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0080] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A current-powered nozzle module with stable power supply, characterized in that, It includes: Mounting base, the mounting base is provided with a mounting groove, and a positioning structure is provided in the mounting groove; An electric fluid nozzle includes a positioning block, a nozzle body, and an electrode assembly. The nozzle body is located in the mounting groove, the electrode assembly is installed inside the nozzle body and is electrically connected to the nozzle body, the positioning block is sleeved on the nozzle body and is electrically connected to the nozzle body, and the positioning block abuts against the positioning structure. A magnetic power supply assembly is installed at the bottom of the mounting groove. The magnetic power supply assembly includes a magnetic element and a power supply element. The magnetic element is magnetically attracted to the positioning block, so that the power supply element is pressed against the positioning block, thereby making the power supply element and the positioning block stably electrically connected.

2. The current-powered nozzle module with stable power supply according to claim 1, characterized in that, The bottom of the mounting slot is provided with a receiving slot, and the magnetic power supply component is placed in the receiving slot; The mounting groove has a wiring hole on its side, which connects to the receiving groove. The wiring hole is suitable for passing a conductive wire through, so as to facilitate the electrical connection of the magnetic power supply component and the external power supply device using the conductive wire.

3. The current-powered nozzle module with stable power supply according to claim 2, characterized in that, The magnetic power supply component also includes a mounting sleeve, which is embedded in the receiving groove; The power supply component includes a power supply ring, which is sleeved on the magnetic suction component and passes through the mounting sleeve.

4. The current-powered nozzle module with stable power supply according to claim 1, characterized in that, The magnetic attractor includes a permanent magnet or an electromagnet.

5. The current-powered nozzle module with stable power supply according to claim 1, characterized in that, The nozzle body includes: The main body is made of conductive material, the electrode assembly is electrically connected to the main body, and the positioning block is sleeved on the main body and electrically connected to the main body; The needle body is made of insulating material and is inserted into the main body. The electrode assembly extends to the spray point of the needle body.

6. The electro-hydraulic nozzle module with a stable power supply according to any one of claims 1 to 5, characterized in that, The mounting base is made of insulating material.

7. The current-powered nozzle module with stable power supply according to claim 5, characterized in that, The positioning structure includes a positioning sleeve made of metal. The positioning sleeve has an opening on its circumferential side to allow the needle body to enter the positioning sleeve from the side. The bottom surface of the positioning block is in contact with the top surface of the positioning sleeve. The positioning sleeve is embedded in the mounting groove, the groove wall of which has a stepped surface, and the bottom surface of the positioning sleeve abuts against the stepped surface.

8. The current-powered nozzle module with stable power supply according to claim 7, characterized in that, The corners of the positioning sleeve are rounded.

9. The current-powered nozzle module with stable power supply according to claim 1, characterized in that, It also includes a limiting component for pressing the electro-hydraulic nozzle against the mounting groove; the limiting component includes: A limiting plate, one end of which is hinged to one side of the mounting base where the mounting groove is provided, and the other end of which is fixed to the mounting base by bolts, so that the limiting plate spans the mounting groove; A limiting screw is threaded through the limiting plate, and when the limiting plate spans the mounting groove, the limiting screw extends into the mounting groove and abuts against the electro-hydraulic nozzle.

10. An inkjet printing system, characterized in that, Includes an electro-hydraulic nozzle module with a stable power supply as described in any one of claims 1 to 9.

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