A piezoelectric jack and driver having a driver circuit board

Abstract

A piezoelectric jacquard includes a jacquard yarn guide needle block and an actuator mounted on the jacquard yarn guide needle block. The actuator also includes a drive circuit board with two spaced-apart first slots arranged symmetrically with respect to the longitudinal axis of the drive circuit board. In this invention, by setting two spaced-apart and symmetrically with respect to the longitudinal axis of the drive circuit board, in the confined space where it is difficult to arrange two fasteners at the rear of the tail clamp base, the double slots form a dual positioning reference, which can limit the movement of the drive circuit board mounted on the tail clamp base, suppressing deviation and twisting of the drive circuit board, ensuring the alignment accuracy of the drive circuit board contacts, reducing weaving defects caused by poor contact, and simultaneously enabling pre-positioning of the assembly through the first slots, improving the consistency of batch assembly.

Description

Technical Field

[0001] This invention relates to the field of piezoelectric jacquards, and more particularly to a piezoelectric jacquard and a driver having a drive circuit board. Background Technology

[0002] A 32-pin piezoelectric jacquard requires a 32-channel drive circuit on the drive circuit board. However, due to the overall size limitation of the piezoelectric jacquard, the space at the rear of the tail clip base is small, and the rear of the tail clip base does not have the conditions to install two locking fasteners. Summary of the Invention

[0003] The present invention provides a piezoelectric Jacquard and a driver having a driver circuit board, to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A driver having a driving circuit board includes: The drive circuit board (11) has two mutually spaced first slots (10) on it, and the two first slots (10) are arranged symmetrically to the left and right with respect to the longitudinal central axis of the drive circuit board (11).

[0005] In one possible implementation, a tail clip base (12) is also included, the upper surface of which is configured as a storage slot (13). The drive circuit board (11) is installed in the storage slot (13), and two relatively spaced limiting slots (14) are provided in the storage slot (13). When the drive circuit board (11) is installed in the storage slot (13), the first slot (10) is adapted to fit on the outer periphery of the limiting slot (14).

[0006] In one possible implementation, a protruding mounting base (15) is provided on the inner side of the limiting groove (14), and a first locking fastener (16) is inserted and installed on the mounting base (15). When the drive circuit board (11) is installed in the storage groove (13), the upper part of the mounting base (15) and the upper part of the first locking fastener (16) are inserted and installed together in the first slot (10).

[0007] In one possible implementation, the two limiting grooves (14) are arranged symmetrically to each other with respect to the longitudinal central axis of the storage groove (13).

[0008] In one possible implementation, a second limiting groove (17) is provided on the lower bottom surface of the tail clip base (12), and a card seat (18) is provided in the second limiting groove (17). A first internal thread hole (19) is provided in the middle of the card seat (18), and the lower part of the first locking fastener (16) is inserted into the first internal thread hole (19). A compression spring is sleeved on the first locking fastener (16), the front end of the compression spring abuts against the card seat (18), and the rear end of the compression spring abuts against the surface of the second limiting groove (17) facing the mounting base (15).

[0009] In one possible implementation, the mounting base (15) is provided with a through channel (20), the front opening of the channel (20) is connected to the second limiting groove (17), and the rear opening of the channel (20) is connected to the first slot (10).

[0010] In one possible implementation, a cover plate (21) is also included. A first opening (23) is provided on the front of the drive circuit board (11), and a second internal thread hole (22) is provided on the front of the storage slot (13). A first mounting hole (25) is provided on the front of the cover plate (21). The outer periphery of the cover plate (21) covers the outer periphery of the upper side of the tail clip base (12). The middle part of the cover plate (21) covers the top of the drive circuit board (11). A second fastener (24) passes through the first mounting hole (25), the first opening (23), and the second internal thread hole (22) from top to bottom to lock the cover plate (21) on the upper side of the tail clip base (12).

[0011] In one possible implementation, the front end of the drive circuit board (11) is provided with two horizontally arranged connectors (34) and a plurality of conductive contacts, each connector (34) having 16 slots. The input end of the slot is electrically connected to the drive circuit through the corresponding conductive contact.

[0012] A piezoelectric Jacquard includes a Jacquard yarn guide block (26) and a driver (1) mounted on the Jacquard yarn guide block (26), wherein the driver (1) is the same as the driver (1) described above.

[0013] In one possible implementation, the Jacquard guide needle block (26) has 32 guide needles (3).

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention has a simple structure and strong practicality. By setting two spaced and symmetrical first slots on the drive circuit board, which are relatively symmetrical about the longitudinal central axis, the double slots form a double positioning reference in the narrow space where it is difficult to arrange two fasteners at the rear of the tail clip base. This can limit the drive circuit board installed on the tail clip base, suppress the displacement and twisting of the drive circuit board, ensure the alignment accuracy of the drive circuit board contacts, reduce weaving defects caused by poor contact, and at the same time, the first slots can be used to achieve pre-positioning of assembly, improving the consistency of batch assembly. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the drive circuit board.

[0016] Figure 2 This is a schematic diagram of the mounting base.

[0017] Figure 3 This is a schematic diagram of the storage compartment.

[0018] Figure 4 This is a schematic diagram of the tail clip base.

[0019] Figure 5 This is a schematic diagram of the structure of a piezoelectric Jacquard.

[0020] Figure 6 This is an exploded view of the cover. Detailed Implementation

[0021] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be present in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] Unless otherwise defined, the technical or scientific terms used herein should be understood in their ordinary sense by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar words used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Words such as "comprising" or "having" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "inner," "outer," "upper," and "lower" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes. "A plurality of" means at least two.

[0025] Reference Figure 5 A piezoelectric Jacquard and a driver 1 having a driver circuit board are disclosed. The piezoelectric Jacquard includes a Jacquard guide needle block 26 and a driver 1 mounted on the Jacquard guide needle block 26. The Jacquard guide needle block 26 has 32 guide needles 3.

[0026] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The driver 1 includes: a driver circuit board 11, a tail clip base 12, a cover plate 21, and a first locking fastener 16.

[0027] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The drive circuit board 11 has two first slots 10 spaced apart from each other, and the two first slots 10 are arranged symmetrically with respect to the longitudinal central axis of the drive circuit board 11.

[0028] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The upper surface of the tail clip base 12 is configured as a storage slot 13. The drive circuit board 11 is installed in the storage slot 13. Two relatively spaced limiting slots 14 are provided in the storage slot 13. When the drive circuit board 11 is installed in the storage slot 13, the first slot 10 is adapted to fit on the outer periphery of the limiting slot 14.

[0029] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The two limiting grooves 14 are arranged symmetrically to the left and right of the longitudinal central axis of the storage groove 13.

[0030] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The tail clamp base 12, the storage slot 13, the limiting slot 14 and the first slot 10 cooperate with each other. The limiting slot 14 forms a lateral limit on the drive circuit board 11, further constraining the lateral displacement and rotation trend of the circuit board, and adapting to the narrow internal installation space. During assembly, the first slot 10 can be directly fitted onto the outer periphery of the limiting slot 14 to realize the circuit board's rapid pre-positioning, reduce assembly and adjustment time, and ensure reliable alignment of the dual positioning reference.

[0031] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The inner side of the limiting groove 14 is provided with a protruding mounting seat 15, and a first locking fastener 16 is inserted and installed on the mounting seat 15. When the drive circuit board 11 is installed in the storage groove 13, the upper part of the mounting seat 15 and the upper part of the first locking fastener 16 are inserted and installed together in the first slot 10.

[0032] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The mounting base 15 and the first locking fastener 16 are inserted into the first slot 10 and locked. Under the condition that the second locking fastener 24 cannot be added to the rear of the tail clamp base 12, the positioning guide and locking are achieved simultaneously by relying on the limiting slot 14 and the locking fastener, simplifying the arrangement of parts.

[0033] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A second limiting groove 17 is provided on the lower surface of the tail clip base 12. A card seat 18 is provided in the second limiting groove 17. A first internal threaded hole 19 is provided in the middle of the card seat 18. The lower part of the first locking fastener 16 is inserted and installed on the first internal threaded hole 19. A compression spring is sleeved on the first locking fastener 16. The front end of the compression spring abuts against the card seat 18, and the rear end of the compression spring abuts against the surface of the mounting base 15 in the second limiting groove 17.

[0034] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The card holder 18, compression spring and first locking fastener 16 are set together. The compression spring provides elastic preload, which can compensate for the gaps caused by the processing and assembly of parts, reduce the problem of loosening of the fastener caused by equipment vibration, and help maintain the circuit board locked.

[0035] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The mounting base 15 has a through channel 20. The front opening of the channel 20 is connected to the second limiting groove 17, and the rear opening of the channel 20 is connected to the first slot 10.

[0036] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A through channel 20 is provided to facilitate the installation of the first fastener 16 and to allow internal heat and moisture to escape, reducing the risk of heat accumulation and moisture damage to components in a confined space.

[0037] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The drive circuit board 11 has a first opening 23 on its front part, the storage slot 13 has a second internal thread hole 22 on its front part, the cover plate 21 has a first mounting hole 25 on its front part, the outer periphery of the cover plate 21 covers the outer periphery of the upper side of the tail clip base 12, and the middle part of the cover plate 21 covers the top of the drive circuit board 11. A second fastener 24 passes through the first mounting hole 25, the first opening 23 and the second internal thread hole 22 from top to bottom to lock the cover plate 21 on the upper side of the tail clip base 12.

[0038] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The cover plate 21 and the second locking fastener 24 are configured to press the drive circuit board 11 from above, forming a front-to-back locking structure with the first locking fastener 16 at the rear, which improves the firmness of the circuit board assembly and reduces the possibility of the circuit board warping and detaching under vibration conditions.

[0039] Example 2, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The difference between this second embodiment and the first embodiment is that the front end of the drive circuit board 11 has two horizontally arranged connectors 34 and multiple conductive contacts, and each connector 34 has 16 slots. The input end of the slot is electrically connected to the drive circuit through the corresponding conductive contact.

[0040] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The module features horizontally arranged connectors 34 and conductive contacts. The connectors 34 with slots are connected to the drive circuit, facilitating quick docking between the driver 1 and the piezoelectric Jacquard element. This ensures stable transmission of multiple drive signals and facilitates module disassembly and maintenance. Other structural features are similar to those in Embodiment 1 and will not be described further here.

[0041] Example 3, referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The difference between this embodiment 3 and embodiment 1 is that the Jacquard yarn guide block 26 has a piezoelectric ceramic sheet 27 and a yarn guide needle 3 installed on the front end of the piezoelectric ceramic sheet 27, and the output end of the driver 1 is installed on the rear part of the piezoelectric ceramic sheet 27.

[0042] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The bottom surface of the tail clip base 12 has multiple heat dissipation holes 28, which are connected to the storage slots 13 inside the tail clip base 12. The heat dissipation holes 28 are arranged in one side area near the tail of the tail clip base 12, and the drive circuit board 11 is installed in the storage slots 13. The upper surface of the tail clip base 12 is configured as the storage slots 13.

[0043] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A portion of the cover plate 21 covers the upper surface of the drive circuit board 11, and the outer periphery of the cover plate 21 fits onto the outer periphery of the tail clip base 12.

[0044] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The cover plate 21 has a slot 38, and a heat-conducting block is provided in the slot 38. The outer periphery of the heat-conducting block is embedded in the slot 38, and the lower surface of the heat-conducting block covers the upper surface of the drive circuit board 11.

[0045] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The heat-conducting block includes a heat-dissipating aluminum plate 40 and a heat-conducting silicone 41 disposed between the heat-dissipating aluminum plate 40 and the drive circuit board 11. A limiting rib 39 is provided on the inner wall of the slot 38, and the heat-dissipating aluminum plate 40 is embedded in the slot 38 through the limiting rib 39.

[0046] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A third slot 62 is provided on the left side of the tail clip base 12. The third slot 62 is used to accommodate the first power terminal 30, which is located on the left side of the drive circuit board 11.

[0047] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A second slot 60 is provided on the right side of the tail clip base 12. The second slot 60 is used to accommodate the second power terminal 31, which is located on the right side of the drive circuit board 11.

[0048] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A fourth slot 33 is provided on the front side of the tail clip base 12. The fourth slot 33 is used to accommodate the connector 34, which is located on the front side of the drive circuit board 11.

[0049] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The cover plate 21 is provided with a second mounting hole 36, and the tail clip base 12 is provided with a fourth mounting hole 37 on the rear side. The cover adapted to the second mounting hole 36 is placed on the fourth mounting hole 37, and the second locking fastener 32 is inserted into the second mounting hole 36 and the fourth mounting hole 37.

[0050] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A guide protrusion 35 is provided on the lower surface of the tail clip base 12. The guide protrusion 35 is located below the heat dissipation hole 28, and the side of the guide protrusion 35 facing the heat dissipation hole 28 forms a guide channel. By setting the guide channel, the airflow is guided to flow in a specific direction, promoting the inflow of cold air into the storage slot 13 and the outward discharge of hot air, thus stabilizing and maintaining the natural convection heat dissipation effect.

[0051] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 When the driver 1 is working, the drive circuit board 11 inside the storage slot 13 continuously generates heat. Part of this heat is exchanged with the outside air via heat convection through the heat dissipation holes 28 on the bottom surface of the tail clip base 12 near the tail section. The heated air inside the housing flows out through the heat dissipation holes 28, while cooler outside air enters the storage slot 13, achieving natural convection cooling. Another portion of the heat is transferred upwards, sequentially through the thermally conductive silicone 41 and the heat dissipation aluminum plate 40 to the cover plate 21, where it is dissipated through heat radiation and conduction. This combination of convection and conduction cooling forms a composite heat dissipation path, quickly dissipating the heat generated by the drive circuit board 11, suppressing internal temperature rise, and preventing heat accumulation in the storage slot 13.

[0052] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 When the warp knitting machine is working, the guide bar makes a continuous reciprocating oscillating motion, which drives the piezoelectric jacquards installed on the guide bar to oscillate synchronously. This causes the piezoelectric jacquards to generate a continuous relative airflow with the surrounding air. Under the guidance of the guide channel of the guide boss 35, the airflow flows stably through the heat dissipation hole 28, continuously completing the exchange of cold and hot air inside and outside the shell. Combined with the solid heat conduction and heat dissipation structure of the upper heat conduction block, a dual composite heat dissipation system is formed, which effectively solves the problems of heat accumulation, poor heat dissipation, and unstable operation of traditional piezoelectric jacquards.

[0053] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6When the warp knitting machine is working, the drive circuit board 11 of the driver 1 is continuously powered on and generates a large amount of heat. On the one hand, the heat generated by the drive circuit board 11 can be quickly conducted to the heat dissipation aluminum plate 40 through the thermally conductive silicone 41, and then radiated outwards into the outside air. The high thermal conductivity of the metal is used to quickly dissipate the concentrated heat source of the circuit board, avoiding local heat accumulation. On the other hand, relying on the inherent working conditions of the warp knitting machine, the high-frequency reciprocating oscillation of the guide bar drives the piezoelectric jacquard to move synchronously, so that the piezoelectric jacquard and the outside air form a stable relative airflow. After the airflow is rectified and guided by the guide channel of the guide boss 35, it passes through the heat dissipation hole 28, continuously replacing the high-temperature air inside the housing storage slot 13 with the low-temperature air outside, realizing active forced convection heat dissipation. At the same time, the guide boss 35 can effectively separate the heat dissipation hole 28 from the guide bar mounting base, completely avoiding the mounting surface from blocking or sealing the heat dissipation hole 28, ensuring that the heat dissipation channel is unobstructed throughout the process.

[0054] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 By setting heat dissipation holes 28 to achieve air convection heat exchange, the working heat of the drive circuit board 11 can be removed in time, effectively reducing the working temperature of electronic components and extending the overall service life of the piezoelectric Jacquard.

[0055] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 By setting the guide protrusion 35 and the guide channel, it has both anti-blocking and airflow rectification functions. It is suitable for the working conditions of piezoelectric Jacquard bonding comb installation, avoiding the failure of heat dissipation structure, and can regulate the airflow direction, greatly improving the convective heat dissipation efficiency and heat dissipation uniformity.

[0056] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 By setting up a composite thermal conductive structure of heat dissipation aluminum plate 40 and full-coverage sheet thermal conductive silicone 41, the assembly gap is eliminated to the greatest extent, the contact thermal resistance is reduced, and the heat source is precisely attached to achieve efficient heat conduction. In conjunction with bottom convection heat dissipation, a dual heat dissipation guarantee is formed, and the heat dissipation performance is greatly improved.

[0057] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6It fully utilizes the dynamic airflow generated by the oscillation of the comb bars to achieve active heat dissipation, eliminating the need for additional auxiliary cooling equipment such as fans. Its compact structure and energy-saving design make it perfectly suited for installation scenarios with dense components and limited space in warp knitting machines, and suitable for high-speed continuous weaving conditions. Other structural features are similar to those in Embodiment 1, and will not be described further here.

[0058] Example 4, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The difference between this fourth embodiment and the first embodiment is that the driver 1 also includes a first conductive ring 43, a second conductive ring 44, a tail clip base 12, a second locking fastener 24, and a third locking fastener 47.

[0059] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The drive circuit board 11 is equipped with a drive circuit. The front part of the drive circuit board 11 is provided with a first opening 23 and two second openings 46. The first opening 23 is located on the central axis of the drive circuit board 11, and the two second openings 46 are arranged on the left and right sides of the first opening 23 with the first opening 23 as the center point.

[0060] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A hollow first conductive ring 43 is provided on the upper side of the first opening 23, and the first conductive ring 43 is electrically connected to the corresponding grounding terminal in the driving circuit; refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A hollow second conductive ring 44 is provided on the upper side of the second opening 46, and the second conductive ring 44 is electrically connected to the corresponding grounding terminal in the driving circuit.

[0061] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The first opening 23 and the second opening 46 are set on the same horizontal line.

[0062] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The front end of the drive circuit board 11 is provided with a connector 34 and conductive contacts. The input end of the connector 34 is electrically connected to the drive circuit through the conductive contacts. The first conductive ring 43 and the second conductive ring 44 are both located on the rear side of the connector 34.

[0063] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The front of the tail clip base 12 is provided with a first mounting hole that matches the first opening 23 and a fifth mounting hole 45 that matches the second opening 46. A second fastener 24 passes through the first conductive ring 43, the first opening 23 and the first mounting hole from top to bottom. The first conductive ring 43, the second fastener 24 and the first mounting hole are connected as one to form a complete first grounding circuit. A third fastener 47 passes through the second conductive ring 44, the second opening 46 and the fifth mounting hole 45 from top to bottom. The second conductive ring 44, the third fastener 47 and the fifth mounting hole 45 are connected as one to form a complete second grounding circuit.

[0064] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The tail clip base 12 is made of resin material in one piece.

[0065] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A first power terminal 30 is provided on the left side of the drive circuit board 11, and the first power terminal 30 is located on the left side of a second conductive ring 44. A second power terminal 31 is provided on the right side of the drive circuit board 11, and the second power terminal 31 is located on the right side of another second conductive ring 44.

[0066] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The first power terminal 30 is installed in the third slot 62 on the left side of the tail clip base 12, and the second power terminal 31 is installed in the second slot 60 on the right side of the tail clip base 12.

[0067] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The first opening 23 and the second opening 46 are arranged on the same horizontal line, and the grounding points are arranged in a regular manner, which is convenient for processing and assembly alignment and facilitates the synchronous assembly of the grounding circuit.

[0068] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The second locking fastener 24 and the third locking fastener 47 respectively assemble and cooperate the conductive ring, the first opening 23, the second opening 46, the first mounting hole, and the fifth mounting hole 45 to form an independent first grounding circuit and a second grounding circuit. The grounding is completed while the second locking fastener 24 and the third locking fastener 47 are locked. The assembly process is integrated, and the multiple grounding circuits are independent of each other. If one circuit has an abnormal contact, the other grounding circuits can still work normally.

[0069] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The first power terminal 30 and the second power terminal 31 are respectively housed in the third slot 62 and the second slot 60 on both sides of the tail clip base 12, making reasonable use of space. Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0070] Example 5, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The difference between this fifth embodiment and the first embodiment is that: the cover plate 21 is placed on the upper side of the tail clip base 12, the drive circuit board 11 is sandwiched between the cover plate 21 and the tail clip base 12, and the front part of the cover plate 21 is provided with a fourth mounting hole 48 and a sixth mounting hole 49. The fourth mounting hole 48 is located above the first mounting hole, and the upper part of the second locking fastener 24 is fitted into the fourth mounting hole 48. The sixth mounting hole 49 is located above the fifth mounting hole 45, and the upper part of the third locking fastener 47 is fitted into the sixth mounting hole 49, so that the cover plate 21, the drive circuit board 11 and the tail clip base 12 are installed together. The cover plate 21 is integrally molded from resin material.

[0071] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The fourth mounting hole 48 on the cover plate 21 is for the upper part of the second fastener 24 to be mounted, and the sixth mounting hole 49 is for the upper part of the third fastener 47 to be mounted, thereby pressing and assembling the cover plate 21, the drive circuit board 11, and the tail clamp base 12 to maintain the contact pressure of the grounding part.

[0072] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The tail clip base 12 and cover plate 21 are integrally molded from resin. The resin material is insulating, preventing the base and cover plate 21 from introducing additional stray signals. At the same time, the integral molding structure has good dimensional consistency, which is convenient for mass production and assembly. Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0073] Example 6, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The difference between this sixth embodiment and the first embodiment is that the opening of the second limiting groove 17 is set towards the lower surface of the tail clamp base 12; the card seat 18 is slidably set in the opening, and the inner walls of the left and right sides of the second limiting groove 17 limit the left and right side walls of the card seat 18.

[0074] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The card holder 18 is provided with a first internal threaded hole 19, and the first locking fastener 16 is provided with an external thread. The lower part of the first locking fastener 16 is installed on the first internal threaded hole 19 of the card holder 18 to achieve a threaded connection. By rotating the first locking fastener 16, the card holder 18 can switch positions within the opening of the second limiting groove 17.

[0075] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A protruding beam 50 is horizontally arranged on the lower surface of the tail clamp base 12. A part of the protruding beam 50 is located on the left side of the second limiting groove 17, and the other part of the protruding beam 50 is located on the right side of the second limiting groove 17.

[0076] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 When the tail clip base 12 is installed on the comb, the lower part of the protruding beam 50 engages with the groove on the inner side of the comb, so that the tail clip base 12 is securely installed on the comb.

[0077] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A transverse convex beam 50 is provided on the left and right sides of the second limiting groove 17 to enhance the overall structural strength of the bottom of the tail clip base 12 and improve the overall structural stability of the tail clip base 12.

[0078] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The protruding beam 50 engages with the inner groove of the comb, which can provide positioning constraints for the tail clip base 12, help limit the displacement of the tail clip base 12 relative to the comb, and improve the assembly firmness with the locking structure, reducing the risk of loosening during operation.

[0079] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The third mounting hole 51 is inclined and penetrates the tail clip base 12. The third mounting hole 51 extends from the upper surface of the tail clip base 12 to the inner side of the second limiting groove 17.

[0080] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The third assembly hole 51 is arranged at an angle, which facilitates the operation of the first locking fastener 16 from above the tail clamp base 12, improves the problem of limited operating space, and enhances the convenience of assembly and debugging.

[0081] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The two second limiting grooves 17 are arranged symmetrically to the left and right of the longitudinal central axis of the bottom of the tail clip base 12. Each second limiting groove 17 is provided with a card seat 18, a third assembly hole 51 and a first locking fastener 16.

[0082] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A compression spring is sleeved on the lower part of the first locking fastener 16. The lower part of the compression spring abuts against the side surface of the card holder 18 facing the first locking fastener 16, and the upper part of the compression spring abuts against the inner surface of the second limiting groove 17. The inner surface of the second limiting groove 17 is the surface surrounding the outer side of the third mounting hole 51.

[0083] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A compression spring is positioned between the first locking fastener 16 and the retainer 18 to form an elastic pre-tightening structure. This structure buffers the impact of equipment vibration, compensates for threaded clearance, reduces the probability of the first locking fastener 16 loosening, slows down hard collision wear of components, extends the service life of the structure, and maintains long-term positioning stability. Other structures are similar to those in Embodiment 1 and will not be described in detail here.

[0084] The above are merely specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept shall be considered as infringing upon the protection scope of the present invention.

Claims

1. A driver having a drive circuit board, characterized in that, include: The drive circuit board (11) has two mutually spaced first slots (10) on it, and the two first slots (10) are arranged symmetrically to the left and right with respect to the longitudinal central axis of the drive circuit board (11).

2. The driver with a driving circuit board as described in claim 1, characterized in that, It also includes a tail clip base (12), the upper surface of which is configured as a storage slot (13), the drive circuit board (11) is installed in the storage slot (13), and the storage slot (13) is provided with two relatively spaced limiting slots (14). When the drive circuit board (11) is installed in the storage slot (13), the first slot (10) is adapted to fit on the outer periphery of the limiting slot (14).

3. A driver with a driving circuit board as described in claim 2, characterized in that, The inner side of the limiting groove (14) is provided with a protruding mounting seat (15), and a first locking fastener (16) is inserted and installed on the mounting seat (15). When the drive circuit board (11) is installed in the storage groove (13), the upper part of the mounting seat (15) and the upper part of the first locking fastener (16) are inserted and installed together in the first slot (10).

4. A driver with a driving circuit board as described in claim 2, characterized in that, The two limiting grooves (14) are arranged symmetrically to the left and right of the longitudinal central axis of the storage groove (13).

5. A driver with a driving circuit board as described in claim 1, characterized in that, The bottom surface of the tail clip base (12) is provided with a second limiting groove (17), and a card seat (18) is provided in the second limiting groove (17). A first internal thread hole (19) is provided in the middle of the card seat (18). The lower part of the first locking fastener (16) is inserted into the first internal thread hole (19). A compression spring is sleeved on the first locking fastener (16). The front end of the compression spring abuts against the card seat (18), and the rear end of the compression spring abuts against the surface of the second limiting groove (17) facing the mounting base (15).

6. A driver with a driving circuit board as described in claim 1, characterized in that, The mounting base (15) is provided with a through channel (20), the front opening of the channel (20) is connected to the second limiting groove (17), and the rear opening of the channel (20) is connected to the first slot (10).

7. A driver with a driving circuit board as described in claim 1, characterized in that, It also includes a cover plate (21), a first opening (23) is provided on the front of the drive circuit board (11), a second internal thread hole (22) is provided on the front of the storage slot (13), a first mounting hole (25) is provided on the front of the cover plate (21), the outer periphery of the cover plate (21) covers the outer periphery of the upper side of the tail clip base (12), the middle part of the cover plate (21) covers the top of the drive circuit board (11), and a second fastener (24) passes through the first mounting hole (25), the first opening (23) and the second internal thread hole (22) from top to bottom so that the cover plate (21) is locked on the upper side of the tail clip base (12).

8. A driver with a driving circuit board as described in claim 1, characterized in that, The front end of the drive circuit board (11) is provided with two horizontally arranged connectors (34) and multiple conductive contacts, and each connector (34) is provided with 16 slots. The input end of the slot is electrically connected to the drive circuit through the corresponding conductive contact.

9. A piezoelectric jacquard, characterized in that, It includes a Jacquard yarn guide block (26) and a driver (1) mounted on the Jacquard yarn guide block (26), the driver (1) being the driver (1) of any one of claims 1-8.

10. A piezoelectric Jacquard as described in claim 9, characterized in that, The Jacquard guide needle block (26) has 32 guide needles (3).

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