CN113774557B - Separable piezoelectric jacquard comprising positive and negative electrode assemblies - Google Patents
Separable piezoelectric jacquard comprising positive and negative electrode assemblies Download PDFInfo
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- CN113774557B CN113774557B CN202111119350.6A CN202111119350A CN113774557B CN 113774557 B CN113774557 B CN 113774557B CN 202111119350 A CN202111119350 A CN 202111119350A CN 113774557 B CN113774557 B CN 113774557B
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- circuit board
- negative electrode
- piezoelectric ceramic
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
- D04B27/10—Devices for supplying, feeding, or guiding threads to needles
- D04B27/24—Thread guide bar assemblies
Abstract
The invention relates to a separable piezoelectric jacquard comprising a positive electrode assembly and a negative electrode assembly, which comprises a piezoelectric ceramic element group, a needle plate, a fixed seat, a driving circuit board and the positive electrode assembly and the negative electrode assembly, wherein the positive electrode assembly and the negative electrode assembly comprise a clamping piece, a positive electrode conducting strip group comprising a plurality of positive electrode conducting strips, a negative electrode conducting piece, a negative electrode connecting piece and a circuit board. By the technical scheme of the invention, the positive electrode and the negative electrode of each piezoelectric ceramic element in the piezoelectric ceramic element group can be reliably electrically connected with the driving circuit board, and can also be separated from the driving circuit board through the positive electrode assembly and the negative electrode assembly.
Description
Technical Field
The invention relates to the textile technology, in particular to a piezoelectric jacquard, and particularly relates to a separable piezoelectric jacquard comprising a positive electrode assembly and a negative electrode assembly.
Background
An existing piezoelectric jacquard is installed on a guide bar and provides signals and power through an external cable. The external cable is not only not beautiful, but also occupies a large space, and the installation and the disassembly of the jacquard are inconvenient.
Chinese patent application CN108251956a describes a piezoelectric jacquard mounting assembly with conductive contact elements, which comprises a piezoelectric jacquard and a guide bar connected with the piezoelectric jacquard, wherein a circuit board is provided on the piezoelectric jacquard, and a plurality of conductive contact elements are connected to an input point of the lower side of the circuit board, a circuit board bottom board is fixed to one side of the guide bar facing the lower side of the circuit board, contact points corresponding to the conductive contact elements are provided on the circuit board bottom board, the conductive contact elements pass through a plurality of corresponding holes provided on the piezoelectric Gu Kaka seat to be electrically connected to the corresponding contact points, and the corresponding contact points are connected to an input interface at one end of the circuit board bottom board.
Through adopting the piezoelectricity merchant card installation component who has electrically conductive contact in the above-mentioned application, because the circuit board bottom plate directly sets up on the sley bar, can show the space of sparingly machine structure, can no longer use external cable among the prior art to provide signal input and power input moreover to it is more pleasing to the eye, and piezoelectricity Gu Kazhuang unloads very conveniently.
However, the technical solutions in the above applications still have disadvantages that the multiple conductive contacts and the contact points corresponding to the multiple conductive contacts on the circuit board bottom plate sometimes cannot be accurately positioned, and are easily dislocated, and if the conductive contacts are dislocated in the mounting process (for example, the voltage contact point and the signal point are in contact, the circuit board may be damaged), thereby causing poor or failed electrical contact. The conductive contact piece is positioned by the positioning hole of the needle plate.
Chinese patent application CN208501220U provides a location-mounted piezoelectric jacquard installation component with conductive contacts, including piezoelectric jacquard, the guide bar connected with piezoelectric jacquard, be provided with the circuit board on the piezoelectric jacquard the input point department of the downside of circuit board is connected with a plurality of conductive contacts the orientation of guide bar one side of the downside of circuit board is fixed with circuit board bottom plate, be equipped with on the circuit board bottom plate with the contact point that a plurality of conductive contacts correspond, a plurality of conductive contacts pass set up in a plurality of corresponding holes on piezoelectric Gu Kaka seat with the contact point electricity that corresponds is connected, corresponding contact point is connected to being located the input interface of circuit board bottom plate one end, its characterized in that still be equipped with on the lower surface of piezoelectric jacquard cassette the locating hole that corresponds with the locating column is equipped with on the circuit board bottom plate, the length of locating column is greater than the length that conductive contact stretches out from the lower surface of piezoelectric jacquard cassette, makes after the locating column inserts in the corresponding locating hole, a plurality of conductive contacts with corresponding contact point electricity is connected. By adopting the positioning device for positioning and mounting, the problems that a plurality of conductive contact elements in the Chinese patent application CN108251956A and contact points which are arranged on a circuit board bottom plate and correspond to the plurality of conductive contact elements sometimes cannot be accurately positioned and are easy to generate dislocation are solved, and accurate and reliable electric connection is realized.
Chinese patent application CN110485048a discloses a separable piezoelectric jacquard assembly, which is separated from other elements connected with the separable piezoelectric Gu Kake on the piezoelectric jacquard when the driving circuit board on the separable piezoelectric Gu Kake fails, so that the whole piezoelectric Gu Kazu is not required to be discarded, and the cost is reduced. A detachable piezoelectricity merchant card of this application includes piezoelectric ceramic element, is used for fixed piezoelectric ceramic element's faller, dirver circuit board, fixing base, a serial communication port, detachable piezoelectricity merchant card still includes switching circuit board and probe subassembly, the switching circuit board is equipped with the connector, and passes through the connector with the last connector electricity that sets up of dirver circuit board is connected, the switching circuit board through the wiring with piezoelectric ceramic element electricity is connected, the switching circuit board with the fixing base is fixed respectively on the faller, the probe subassembly passes through on the faller with the hole of probe subassembly's overall dimension adaptation is fixed on the faller, probe subassembly's one end have the connecting wire and with dirver circuit board realizes the electricity through welding or connector and connects, the other end of probe subassembly has the spring needle, through the spring needle is connected with the bottom plate electricity that sets up on the sley bar.
Chinese patent application CN110485048a discloses a disconnect-type piezoelectricity merchant card subassembly, including the negative pole subassembly, the negative pole subassembly includes base plate and holder, the base plate is equipped with the bridge portion and is located the grip hole of bridge portion both sides, the holder is equipped with the horizontal part and is located the horizontal part both sides with the holding piece that the horizontal part combines respectively, when the installation is taken one's place, the holding piece passes the grip hole and respectively with piezoceramics element's electrode layer electrical contact is regarded as piezoceramics element's negative pole, the base plate then is supported the piezoceramics element's of faller fixed wall on.
Chinese patent application CN111270407a discloses a separable piezoelectric jacquard card comprising an anode assembly, which comprises a piezoelectric ceramic element assembly, a needle plate, a driving circuit board, a fixing base, and a probe assembly, wherein each piezoelectric ceramic element in the piezoelectric ceramic element assembly comprises an insulating intermediate substrate and two piezoelectric ceramic pieces respectively located at two sides of the insulating intermediate substrate, conductive films are attached to two sides of the insulating intermediate substrate, one side of each piezoelectric ceramic piece is fixedly attached to the insulating intermediate substrate through the conductive film, and the other side of each piezoelectric ceramic piece is provided with an electrode layer which is a cathode and is electrically connected to the driving circuit board, and the separable piezoelectric jacquard card is characterized by further comprising an anode assembly, wherein the anode assembly comprises a clamping body, a conductive sheet assembly, a circuit board and a connector; the clamping body comprises a receiving groove for receiving the piezoelectric ceramic element, an electrode hole and an installation part for assembling a circuit board; the circuit board comprises a conducting strip contact, an electrode output point and a positioning hole; the conductive sheet comprises a first pin, a second pin and a connecting part for combining the first pin and the second pin; the connector is provided with an electrode contact and a jack; when the middle substrate is assembled in place, one end of the middle substrate with the exposed conducting film is inserted into the corresponding receiving groove and electrically contacted with the first pin of the corresponding conducting strip, the second pin of the corresponding conducting strip is inserted into the corresponding electrode hole and electrically contacted with the corresponding conducting strip contact on the circuit board which is arranged on the clamping body through the installation part for assembling the circuit board, the electrode contacts of the connector are respectively electrically contacted with the corresponding electrode output points, and the first plug part of the connector is electrically connected with the second plug part on the driving circuit board.
By adopting the technical scheme, the positive electrode of each piezoelectric ceramic element in the piezoelectric ceramic element assembly can be reliably electrically connected with the driving circuit board, and can also be separated from the driving circuit board through the positive electrode assembly. Therefore, when the driving circuit board or the piezoelectric ceramic element is in failure or damaged, the piezoelectric jacquard can be conveniently replaced without discarding the whole piezoelectric jacquard.
Chinese patent application CN111910337a relates to a separable piezoelectric jacquard card comprising an electrode assembly, which comprises a piezoelectric ceramic element group, a needle plate, a fixing seat, a driving circuit, and an electrode assembly, wherein the electrode assembly comprises a clamping piece, an anode conducting strip group comprising a plurality of anode conducting strips, a cathode conducting strip group comprising a plurality of cathode conducting strips, a cathode connecting piece, and a circuit board. By the technical scheme of the invention, the positive electrode and the negative electrode of each piezoelectric ceramic element in the piezoelectric ceramic element group can be reliably electrically connected with the driving circuit, and can also be separated from the driving circuit through the electrode assembly.
There is still a need in the art for a separable piezoelectric jacquard that is simple to assemble and reliable in performance.
Disclosure of Invention
The invention aims to design a positive and negative electrode assembly, by which both the positive electrode and the negative electrode of a piezoelectric jacquard element can be conveniently connected to a driving circuit board, and further provides a separable piezoelectric jacquard comprising the positive and negative electrode assembly. In addition, according to the formula of the separable piezoelectric Gu Kazhuang, the piezoelectric jacquard element is inserted into the positive electrode assembly and the negative electrode assembly, clamping and power supply input can be achieved, the assembly labor intensity is reduced, and particularly on a jacquard with a small center distance, the problem that leads are inconvenient to weld due to small distance can be solved. When a single piezoelectric ceramic element of the separable piezoelectric jacquard is damaged, the separable piezoelectric jacquard can be independently replaced.
The separable piezoelectric jacquard card comprises a piezoelectric ceramic element group, a needle plate, a fixed seat and a driving circuit board, wherein each piezoelectric ceramic element in the piezoelectric ceramic element group is provided with a middle substrate and two piezoelectric ceramic pieces which are respectively positioned at two sides of the middle substrate, the middle substrate comprises an insulating substrate, conductive films are attached to two sides of the insulating substrate, the middle substrate is an anode, one side of each piezoelectric ceramic piece is fixedly attached to the middle substrate, the other side of each piezoelectric ceramic piece is provided with an electrode layer, and the electrode layer is a cathode;
the clamping piece comprises a first side wall, a second side wall, a bottom wall, a rear wall and a plurality of spaced inner walls positioned between the first side wall and the second side wall, a groove for receiving the piezoelectric ceramic element is formed between the first side wall and the inner wall adjacent to the first side wall, between the second side wall and the inner wall adjacent to the second side wall and between the adjacent inner walls, the rear part of the groove comprises an anode conducting strip installation groove for installing an anode conducting strip, the anode conducting strip installation groove is also used for receiving the exposed anode part of the piezoelectric ceramic element, and a first installation mechanism for installing the cathode conducting piece is arranged at the front end of the clamping piece;
the circuit board comprises a plurality of positive conducting strip contacts, a circuit board positive pole and a circuit board negative pole, and the positive conducting strip contacts are electrically connected with the circuit board positive pole;
the negative electrode conductive piece comprises a negative electrode conductive piece main body, a plurality of slots arranged on the negative electrode conductive piece main body and used for enabling the piezoelectric ceramic element to pass through the slots, a second mounting mechanism used for being matched with the first mounting mechanism, and a negative electrode connecting point used for being electrically connected with the negative electrode of the circuit board;
the positive conducting strip comprises a first pin and a positive electric connecting part which is used for electrically contacting with the exposed positive part of the piezoelectric ceramic element;
when the assembly is in place, the negative pole electrically conductive piece is through inciting somebody to action the second installation mechanism with first installation mechanism cooperation fixing on the holder is in the front end of holder, some of piezoceramics component passes the slot and inserts in the groove of holder, form the wall of slot respectively with the electrode layer electricity is connected, negative pole connecting piece electricity is connected to the circuit board negative pole, naked positive pole part with assemble corresponding in the anodal conducting strip mounting groove anodal electricity connection portion electrical contact, and the first foot of corresponding anodal conducting strip stretches out downwards the holder and with correspond on the circuit board anodal conducting strip contact electrical contact, the circuit board is fixed on the faller, the circuit board positive pole with the circuit board negative pole pass through the connector with the drive circuit board electricity is connected.
By adopting the technical scheme, the positive electrode and the negative electrode of each piezoelectric ceramic element in the piezoelectric ceramic element group can be reliably electrically connected with the driving circuit board, and can also be separated from the driving circuit board through the positive electrode assembly and the negative electrode assembly. Therefore, when the driving circuit board or the piezoelectric ceramic element is in failure or damaged, the piezoelectric ceramic element can be conveniently replaced without discarding the whole piezoelectric jacquard. Another significant advantage of the present invention is that the positive and negative electrode assemblies can be assembled prior to being mounted directly on the jacquard plate, which increases assembly speed and efficiency. In addition, the assembly is convenient to disassemble and separate from the piezoelectric ceramic element, so that the assembly is convenient to replace when a certain piezoelectric ceramic element fails or a certain component of the positive and negative electrode assemblies fails, and the operation cost is greatly reduced compared with the prior art.
The driving circuit board can be arranged on the piezoelectric jacquard, such as a fixed seat of the piezoelectric jacquard, and can also be arranged outside the piezoelectric jacquard.
The clamping member of the present invention may be integrally formed of an insulating material, such as, but not limited to, a one-piece injection molded part.
The intermediate substrate of the piezoelectric ceramic element of the present invention may comprise a glass fiber insulating substrate with conductive films attached to both sides of the glass fiber insulating substrate.
In one embodiment, the first mounting mechanism is at least two buckles arranged at the front end of the bottom wall of the clamping piece, and the second mounting mechanism is a clamping groove matched with the buckles.
In one embodiment, the negative electrode conductive member is a resilient negative electrode conductive member, and protrusions facing the conductive layer of the piezoelectric ceramic element are provided at opposite positions on both walls forming the slot, respectively.
This arrangement ensures electrical connection of the two walls forming the slot to the electrode layers of the piezo-ceramic element passing therethrough.
In a preferred embodiment, a recess is provided in a partition wall between two slots adjacent to the projection.
This arrangement can increase the elasticity at the projecting portions, thereby further ensuring the electrical connection of the two walls forming the slot with the electrode layers of the piezoelectric ceramic element passing therethrough.
In one embodiment, the negative electrode connecting point is connected with a negative electrode pad of a circuit board through welding by using a lead, and the negative electrode pad is electrically connected to the negative electrode of the circuit board.
In a preferred embodiment, the positive conductive sheet is an elastic positive conductive sheet.
In a more preferred embodiment, the elastic positive electrode conductive sheet is an integral elastic positive electrode conductive sheet, and the positive electrode electrical connection portion is inclined toward the conductive film.
The inclination of the positive electrode electrical connection portion towards the conductive film is beneficial to ensuring the electrical connection of the positive electrode electrical connection portion and the conductive film.
In a more preferred embodiment, the integrated elastic positive conductive plate further comprises a second pin, wherein the second pin is used for balancing the integrated elastic positive conductive plate when the integrated elastic positive conductive plate is installed, ensuring that the positive electrode electric connecting part is electrically connected with the conductive film, and ensuring that the first pin is aligned with the corresponding positive conductive plate contact on the circuit board.
Further preferably, the integrated elastic positive electrode conductive sheet is further provided with at least one protrusion facing a wall forming the positive electrode conductive sheet mounting groove.
The provision of the projection can further ensure the electrical connection of the positive electrode electrical connection portion with the conductive film.
In a preferred embodiment, in order to secure the mounting position, a vertical wall facing the piezoelectric ceramic element is provided at a position opposite to the front ends of the two walls forming the positive conductive sheet mounting groove, and another vertical wall facing the rear end of the piezoelectric ceramic element is provided at a position intermediate to the rear wall forming the positive conductive sheet mounting groove.
The purpose of the arrangement can be used for positioning the installation of the piezoelectric ceramic element and is also beneficial to positioning and installation of the elastic anode conducting strip.
As described above, the positive and negative electrode assemblies described above can ensure the electrical connection of the negative electrode conductive member to the electrode layer and the electrical connection of the positive electrode conductive sheet to the conductive film.
In a preferred embodiment, the positive conductive sheet contacts are arranged in two rows, and the positive conductive sheet contacts in one row and the positive conductive sheet contacts in the other row are staggered with each other.
In a preferred embodiment, the positive electrodes of the circuit board and the negative electrodes of the circuit board are arranged together in two rows.
The positive pole and the negative pole of the piezoelectric ceramic element are electrically connected to the positive pole and the negative pole on the circuit board, so that wiring is simpler, and disassembly is more convenient.
In one embodiment, the separable piezoelectric jacquard comprising the positive electrode assembly and the negative electrode assembly further comprises a probe, the driving circuit board is a driving circuit board arranged on the piezoelectric jacquard, the circuit board is fixed on the needle board, the electrode contacts of the connector are respectively in electrical contact with the positive electrode of the corresponding circuit board and the negative electrode of the corresponding circuit board, and the first plug part of the connector is electrically connected with the second plug part on the driving circuit board; one end of the probe is electrically connected with the driving circuit board, and the other end of the probe is electrically connected with an external input signal.
Drawings
FIG. 1 is a perspective view of a clamp of the present invention comprising a separable piezoelectric jacquard having positive and negative electrode assemblies;
fig. 2 is a schematic perspective view of a positive electrode conductive sheet according to the present invention;
fig. 3 is a schematic perspective view of a negative conductive member according to the present invention;
FIG. 4 is an exploded perspective view of the positive and negative electrode assemblies of the present invention;
FIG. 5 is a perspective view of the positive and negative electrode assemblies of FIG. 4, shown assembled;
FIG. 6 is a schematic structural view of a piezoelectric ceramic element according to the present invention;
FIG. 7 is a schematic perspective exploded view of a detachable piezoelectric jacquard incorporating positive and negative electrode assemblies according to the present invention; and
FIG. 8 is a perspective view of the assembled detachable piezoelectric jacquard of FIG. 7 including positive and negative electrode assemblies.
Detailed Description
The invention will be further described with reference to the accompanying drawings. It is to be understood that the specific embodiments of the invention that are illustrated in the accompanying drawings are merely illustrative of the invention and are not to be considered as restrictive in terms of actual dimensions and proportions. Accordingly, the drawings in the present application should not be construed as limiting the invention in any way. The scope of the invention is defined by the claims.
For purposes of clarity, not all of the components or features are labeled in some of the figures, and thus, upon reading the following description, reference should be made to all of the figures for a clear and complete understanding of the invention.
It should be understood that directional terms such as, but not limited to, "upper", "lower", "left", "right", "front", "rear", and the like that may be present in the present invention are relative concepts only, and should not be construed as limiting the scope of the invention.
See fig. 1-8. The separable piezoelectric jacquard 100 comprising the positive electrode assembly and the negative electrode assembly comprises a piezoelectric ceramic element group 10, a needle plate 20, a fixed seat 95 and a driving circuit board 80. An important feature of the detachable piezoelectric jacquard 100 is that it further comprises positive and negative electrode assemblies 75. The positive and negative electrode assembly 75 comprises a clamping member 60, a plurality of positive conductive sheets 70 iPositive electrode conductive sheet group 70, negative electrode conductive member 30, negative electrode connecting member 80, circuit board 50 and connector 40.
FIG. 1 is a perspective view of a clamp of the present invention comprising a separable piezoelectric jacquard having positive and negative electrode assemblies. As shown in FIG. 1, the clip 60 includes a first side wall 62-1, a second side wall 62-17, a bottom wall 66, a back wall 64, and a plurality of spaced apart interior walls 62 between the first side wall 62-1 and the second side wall 62-17a(for example, for a piezoelectric jacquard with 16 piezoelectric ceramic elements,a=2, 3, …, 16). The first sidewall 62-1 and an inner wall 62 adjacent to the first sidewall2A groove 63 for receiving the piezoelectric ceramic element is formed between the second side wall 62-17 and the inner wall adjacent to the second side wall and between the adjacent inner wallsi(for example, for a piezoelectric jacquard with 16 piezoelectric ceramic elements,i=1, 2, 3, …, 16). For example, a first sidewall 62-1 and an inner wall 62 adjacent to the first sidewall 62-12A groove 63 for receiving the piezoelectric ceramic element is formed therebetween1. The bottom step portion 65 is used for mounting the wiring board 50.
See fig. 6, 7. Each piezoelectric ceramic element 10 in the piezoelectric ceramic element group 10iAll have an insulating substrate 120-iAnd on insulating substrate 120iPiezoelectric ceramic piece 130 on two sidesi(the other is not shown). On the insulating substrate 120-iThe front end is also provided with a yarn guide needle 110i. Insulating substrate 120-iWith conductive films 170 attached to both sidesi(the other side is not shown), the piezoelectric ceramic sheet 130iHas a side having a conductive film 170-iA conductive layer (not shown) for electrical contact and fixedly attached to the insulating substrate 120iThe above. Piezoelectric ceramic piece 130-iHas an electrode layer (i.e., the side of fig. 6 facing the reader has an electrode layer, not shown) that serves as a negative electrode for electrical connection to negative electrode conductor 30. Conductive film 170-iAs the anode for the anode conductive sheet 70iAnd (6) electrically connecting.
Groove 63-iThe rear portion of the battery case includes a positive conductive plate mounting groove for mounting a positive conductive plate. By way of example, as shown in FIG. 1, in the first sidewall 62-1 and the inner wall 62 adjacent to the first sidewall 62-12A groove 63 for receiving the piezoelectric ceramic element is formed therebetween1，Wherein the groove 63-1Comprises an anode conducting strip mounting groove 631-1. Preferably, in order to secure the mounting position, the positive conductive sheet mounting groove 63 is formed1The front ends of the two walls of-1 are provided with vertical walls 62-1-1, 62-2-1, forming the anode conductive strip mounting groove 63-1The middle position of the back wall of-1 is provided with another vertical wall 64-1 facing the tail end (not shown) of the piezoelectric ceramic element.
At least two, for example, three, first fasteners 61-1, second fasteners 63-2 and third fasteners 63-3 are provided at the lower side of the front end of the clamping member 60 for mounting the negative conductive member 50. The shape of the clip may be, but is not limited to, a horizontal extension from the front end of the bottom wall 66 of the clip 60 and then an upward extension, such as an "L" shape in cross section. The snap may be used to hold (i.e., fix and retain) the negative conductive member 30 on the clip by hot riveting.
See fig. 3. The negative electrode conductive member 30 includes a negative electrode conductive member main body 33, a plurality of slots 34 disposed on the negative electrode conductive member main body 33 for passing the piezoelectric ceramic element therethroughiA first card slot 31-1, a second card slot 31-2 and a third card slot 31-3 for matching with the first card slot 61-1, the second card slot 63-2 and the third card slot 63-3, and negative pole conductive piece negative pole connection points 32-1, 32-2 for electrically connecting with a negative pole pad 530 (see fig. 4) of the circuit board 50. The negative connection point may be only one, such as negative connection point 32-1, but two or more negative connection points may be used to ensure electrical connection with the negative 530 of the wiring board 50.
As shown in FIG. 3, the negative electrode conductive member 30 may be an elastic negative electrode conductive member, and the slot 34 is formed thereiniAre provided with protrusions facing the conductive layer of the piezoelectric ceramic element, respectively, at opposite positions on the two walls. By way of example, with reference to FIG. 3, in forming the slots 341Are provided with protrusions 33-1-1 and protrusions 33-2 facing the conductive layer of the piezoelectric ceramic element, respectively2-2. This is done to ensure that the slot 34 is formediIs electrically connected to the electrode layers of the piezoelectric ceramic element passing therethrough.
A recess is preferably provided in a portion of the partition wall between the two slots adjacent to the projection. For example, as shown in FIG. 3, at slot 34-1And slot 342The partition wall (i.e. the inner wall 33-2) between the two adjacent protrusions 33-2-2 and the protrusion 332The part of the-4 is provided with a groove 33-2-3. This arrangement can increase the elasticity at the projecting portions, thereby further ensuring the electrical connection of the two walls forming the slot with the electrode layers of the piezoelectric ceramic element passing therethrough.
Each positive conductive tab of the positive conductive tab set 70 includes a first leg and a positive electrical connection for making electrical contact with the exposed positive portion of the piezoelectric ceramic element. For example, as shown in FIG. 2, a positive conductive sheet 70-1-1 is integrally stamped from a conductive material, such as metal, and includes a first leg 70113 and a positive electrical connection 70 for electrical contact with the exposed positive portion of the piezoelectric ceramic element1-11. Preferably, the positive electrode electrical connection part 70-1-11 is inclined towards the bare positive part (i.e. the conductive film). This is advantageous for ensuring the positive electrode electrical connection portion 70111 and a conductive film (e.g. 170-i，iElectrical connection of = 1).
Further preferably, the integrated elastic positive electrode conductive sheet 70-1-1 further comprises a second foot 701-12. Second leg 70-112 a conductive sheet for making the integrated elastic anode 70-1-1, balance is carried out during installation, the electrical connection between the positive electrode electrical connection part and the conductive film is ensured, and the first pin 70 is ensured113 are aligned with corresponding positive conductive sheet contacts on the circuit board 50.
Further preferably, the integrated elastic positive electrode conductive sheet 70-1The-1 is further provided with at least one protrusion, such as two protrusions 70, facing the first side wall 62-1 and the inner wall 62-2 forming the positive conductive sheet mounting groove1-141、70-1-142. The provision of the above-mentioned protrusion can further ensure the positive electrode electrical connection part 70-111 and a conductive film (e.g., conductive film 170-i, iElectrical connection of = 1). In addition, the protrusion 70-1-141、70-1142 the positive conductive sheet 70-1-1 interference fit with the clamping member 60 to prevent the positive conductive sheet 70 from being damaged1-1 loosening.
It should be understood by those skilled in the art that the above description is exemplary only and that other positive conductive sheets 70 of the positive conductive sheet set 70iMay have the same or similar structure.
When the assembly is in place, the negative conductive member 30 is fixed at the front end of the clamping member 60 by the first clamping groove 31-1, the second clamping groove 31-2 and the third clamping groove 31-3 respectively matching with the first clamping buckle 61-1, the second clamping buckle 61-2 and the third clamping buckle 61-3 on the clamping member 60, and the piezoelectric ceramic element, such as the piezoelectric ceramic element 10i（iA portion of = 1) passes through the slot 34-1And inserted into the groove 63-1 of the holder 60 to form the slot 341Wall 33-1 and wall 33-2Are electrically connected to the electrode layers (negative electrodes) of the piezoelectric ceramic elements, respectively. A negative electrode connector, such as wire 80 in FIG. 4, electrically connected to the circuit board 50 by electrically connecting (e.g., by soldering) one end 81 thereof to the negative electrode connection point 32-1 of the negative electrode conductive member 30 and the other end 83 thereof to the negative electrode pad 530 of the circuit board 50; the exposed positive electrode portion, i.e., the conductive film and the mounting groove 63 assembled in the corresponding positive electrode conductive sheet1The corresponding positive conductive sheet 70 in-11-1 ofPositive electrode electrical connection section 70-1-11 electrical contact (positive conductive strip mounting groove 63-11, two positive conductive sheets are mounted, one for each conductive film), and the first leg (e.g., first leg 70-1-13) of the corresponding positive conductive sheet extends downward from the holder 60 and makes electrical contact with the corresponding positive conductive sheet contact 510 on the circuit board 50; the circuit board 50 is mounted on the needle plate 20 through the mounting holes 531, 533 thereon and the positioning posts 231, 233 provided on the needle plate 20; the positive and negative circuit board terminals are electrically connected to the driving circuit board 80 through the connector 40.
The number of positive conductive sheet contacts 510 corresponds to the number of positive conductive sheets. The positive conducting strip and the corresponding positive conducting strip contact can be electrically connected through welding. Preferably, the first legs of the positive conductive sheets are arranged in two rows and staggered, as shown in fig. 4. Accordingly, the positive conductive sheet contacts 510 are also arranged in two rows, and staggered. This is especially useful for piezoelectric jammers with small centre-to-centre distances.
The circuit board 50 also carries a plurality of circuit board electrodes 520. The number of circuit board electrodes 520 is at least equal to the number of positive conductive sheet contacts plus the number of negative pads. The circuit board electrodes 520 include a positive circuit board electrode and a negative circuit board electrode, and the circuit board electrodes 520 may be arranged in one row or two rows, preferably two rows, to be matched with the plug 830 at the front end of the driving circuit board 80. See fig. 4, 7, 8.
The socket connector 40 includes an electrode contact 420 and a first patch section, i.e., a patch jack 430. The number of electrode contacts 420 is the same as and corresponds to the number of board electrodes 520. When mounted in place, the electrode contacts 420 are electrically connected to corresponding circuit board electrodes 520, respectively. The patch jacks 430 are in one-to-one correspondence with and in electrical communication with the electrode contacts 420. The patch jack 430 is configured to receive a second patch portion, i.e., a patch plug 830, on the driver circuit board 80 to make an electrical connection with the driver circuit board 80. See fig. 7, 8.
Alternatively, the first patch part may also be a plug and correspondingly the second patch part a jack.
Continuing to refer to fig. 7, 8. To obtain the split piezoelectric jacquard 100 with positive and negative electrode assemblies of the present invention, the positive and negative electrode assemblies of the present invention can be assembled into a single body as shown in fig. 4 and 5 and described above to form a single positive and negative electrode assembly 75, and then mounted on the needle plate 20 and electrically connected to the driving circuit board 80. Then, the piezoelectric ceramic elements in the piezoelectric ceramic element group 10 are inserted into the positive and negative electrode assemblies 75 through the piezoelectric ceramic element grooves formed in the fixing walls 210 on the card holder, respectively.
One end of a probe such as a pogo pin 90 for inputting a signal from the outside is electrically connected to a corresponding electrical contact on the driving circuit board 80, and the other end of the pogo pin 90 is electrically connected to a corresponding electrical contact on, for example, a wiring board (not shown) on the guide bar through a corresponding pogo pin hole 9590 on the fixing base 95 and a corresponding pogo pin hole 290 on the faller bar 20, respectively. The circuit backplane may be used to provide power signals and data signals.
The fixing base 95 is inserted into positioning holes 251 (two, respectively) of the needle plate 20 through positioning posts 951 (two may be) provided thereon and fixed to the needle plate 20 with a screw (not shown).
The fixing base 95 may have two fixing holes 9501 for fixing the driving circuit board, and correspondingly, the driving circuit board 80 may have two fixing holes 801 for fixing the driving circuit board. The driving circuit board 80 is fixed to the fixing base 95 by riveting after passing the driving circuit board fixing post 9501 through the driving circuit board fixing hole 801. The assembled detachable piezoelectric jacquard with positive and negative electrode assemblies 100 of the present invention is shown in fig. 8.
The exposed electrode portions of the mounted positive and negative electrode assemblies 75 of the present invention may be sealed with an insulating adhesive. In the context of the present application, it is,iis a positive integer, as for a piezoelectric jacquard with 16 piezoelectric ceramic bimorph driving plates,i=1,2,3,…, 16。but for the positive conductive tab 70-iEach ofiCorresponding to the two positive conducting strips.
All patent applications mentioned in the background above are hereby incorporated by reference in their entirety.
Based upon the foregoing description of the preferred embodiment of the invention, it should be apparent that the invention defined by the appended claims is not limited solely to the specific details set forth in the foregoing description, as many apparent variations thereof are possible without departing from the spirit or scope thereof.
Claims (10)
1. A detachable piezoelectric jacquard comprises a positive electrode assembly and a negative electrode assembly, and comprises a piezoelectric ceramic element group, a needle plate, a fixed seat and a driving circuit board, wherein each piezoelectric ceramic element in the piezoelectric ceramic element group is provided with a middle substrate and two piezoelectric ceramic pieces which are respectively positioned at two sides of the middle substrate, the middle substrate comprises an insulating substrate, conductive films are attached to two sides of the insulating substrate, the middle substrate is a positive electrode, one side of each piezoelectric ceramic piece is fixedly attached to the middle substrate, the other side of each piezoelectric ceramic piece is provided with an electrode layer, the electrode layer is a negative electrode, the detachable piezoelectric jacquard is characterized by further comprising the positive electrode assembly and the negative electrode assembly, and the electrode assembly comprises a clamping piece, a positive electrode conductive piece group comprising a plurality of positive conductive pieces, a negative electrode conductive piece, a negative electrode connecting piece and a circuit board;
the clamping piece comprises a first side wall, a second side wall, a bottom wall, a rear wall and a plurality of spaced inner walls positioned between the first side wall and the second side wall, a groove for receiving the piezoelectric ceramic element is formed between the first side wall and the inner wall adjacent to the first side wall, between the second side wall and the inner wall adjacent to the second side wall and between the adjacent inner walls, the rear part of the groove comprises an anode conducting strip installation groove for installing an anode conducting strip, the anode conducting strip installation groove is also used for receiving the exposed anode part of the piezoelectric ceramic element, and a first installation mechanism for installing the cathode conducting piece is arranged at the front end of the clamping piece;
the circuit board comprises a plurality of positive conducting strip contacts, a circuit board positive pole and a circuit board negative pole, and the positive conducting strip contacts are electrically connected with the circuit board positive pole;
the negative electrode conductive piece comprises a negative electrode conductive piece main body, a plurality of slots arranged on the negative electrode conductive piece main body and used for enabling the piezoelectric ceramic element to pass through the slots, a second mounting mechanism used for being matched with the first mounting mechanism, and a negative electrode connecting point used for being electrically connected with the negative electrode of the circuit board;
the positive conducting strip comprises a first pin and a positive electric connecting part which is used for electrically contacting with the exposed positive part of the piezoelectric ceramic element;
when the assembly is in place, the negative pole electrically conductive piece is through inciting somebody to action the second installation mechanism with first installation mechanism cooperation fixing on the holder is in the front end of holder, some of piezoceramics component passes the slot and inserts in the groove of holder, form the wall of slot respectively with the electrode layer electricity is connected, negative pole connecting piece electricity is connected to the circuit board negative pole, naked positive pole part with assemble corresponding in the anodal conducting strip mounting groove anodal electricity connection portion electrical contact, and the first foot of corresponding anodal conducting strip stretches out downwards the holder and with correspond on the circuit board anodal conducting strip contact electrical contact, the circuit board is fixed on the faller, the circuit board positive pole with the circuit board negative pole pass through the connector with the drive circuit board electricity is connected.
2. The detachable piezoelectric jacquard machine according to claim 1, wherein the first mounting mechanism is at least two buckles arranged at the front end of the bottom wall of the clamping piece, and the second mounting mechanism is a clamping groove matched with the buckles.
3. The detachable piezoelectric jacquard machine according to claim 1, wherein said negative electrode conductor is a resilient negative electrode conductor, and protrusions facing said electrode layers of said piezoelectric ceramic element are provided at opposite positions on both walls forming said slot, respectively.
4. The detachable piezoelectric jacquard machine comprising positive and negative electrode assemblies as claimed in claim 3, wherein a portion adjacent to the protrusion in a partition wall between two slots is provided with a groove.
5. The detachable piezoelectric jacquard machine according to claim 1, wherein the positive electrode conductive sheet is an integral elastic positive electrode conductive sheet, and the positive electrode electrical connection part is inclined toward the conductive sheet.
6. The detachable piezoelectric jacquard machine according to claim 5, wherein the integrated elastic positive conductive plate further comprises a second pin, the second pin is used for balancing the integrated elastic positive conductive plate when the integrated elastic positive conductive plate is installed, ensuring that the positive electrical connection part is electrically connected with the conductive film, and ensuring that the first pin is aligned with the corresponding positive conductive plate contact on the circuit board.
7. The detachable piezoelectric jacquard machine according to claim 6, wherein at least one protrusion is formed on the integrated elastic positive conductive plate toward a wall forming the positive conductive plate mounting groove.
8. The detachable piezoelectric jacquard machine according to claim 7, wherein a standing wall facing the piezoelectric ceramic element is provided at a position opposite to the front end of the two walls forming the positive conductive plate mounting groove, and another standing wall facing the rear end of the piezoelectric ceramic element is provided at a position intermediate to the rear wall forming the positive conductive plate mounting groove.
9. The separable piezoelectric jacquard machine according to claim 1, wherein the positive conductive sheet contacts are arranged in two rows, and the positive conductive sheet contacts in one row and the positive conductive sheet contacts in the other row are staggered with each other.
10. The detachable piezoelectric jacquard machine comprising a positive electrode assembly and a negative electrode assembly according to claim 1, further comprising a probe, wherein the driving circuit board is a driving circuit board disposed on the piezoelectric jacquard machine, the circuit board is fixed on the needle board, electrode contacts of the connector are respectively in electrical contact with a positive electrode of the corresponding circuit board and a negative electrode of the corresponding circuit board, and a first plug of the connector is electrically connected with a second plug on the driving circuit board; one end of the probe is electrically connected with the driving circuit board, and the other end of the probe is electrically connected with an external input signal.
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| CN202111119350.6A CN113774557B (en) | 2021-09-24 | 2021-09-24 | Separable piezoelectric jacquard comprising positive and negative electrode assemblies |
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| CN202111119350.6A CN113774557B (en) | 2021-09-24 | 2021-09-24 | Separable piezoelectric jacquard comprising positive and negative electrode assemblies |
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| CN113774557B true CN113774557B (en) | 2023-04-07 |
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| CN115341334B (en) * | 2022-08-19 | 2023-10-24 | 江苏明朗星新能源科技发展有限公司 | Needle plate for piezoelectric jacquard with metal reinforcing component |
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| JP4210419B2 (en) * | 2000-09-27 | 2009-01-21 | 日本マイヤー株式会社 | Piezoelectric displacement jacquard guide structure in warp knitting machine |
| CN109576894A (en) * | 2018-12-06 | 2019-04-05 | 福建宏宇电子科技有限公司 | A kind of jacquard flower's device removing connecting rope |
| CN110485048B (en) * | 2019-09-27 | 2024-04-19 | 江苏明朗星新能源科技发展有限公司 | Separated piezoelectric jacquard assembly |
| CN211446110U (en) * | 2019-11-15 | 2020-09-08 | 重庆中镭科技有限公司 | Piezoelectric jacquard device of warp knitting machine |
| CN111910337B (en) * | 2020-08-10 | 2021-09-21 | 江苏明朗星新能源科技发展有限公司 | Separable piezoelectric jacquard including electrode assembly |
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