CN111910337B - Separable piezoelectric jacquard including electrode assembly - Google Patents
Separable piezoelectric jacquard including electrode assembly Download PDFInfo
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- CN111910337B CN111910337B CN202010794840.5A CN202010794840A CN111910337B CN 111910337 B CN111910337 B CN 111910337B CN 202010794840 A CN202010794840 A CN 202010794840A CN 111910337 B CN111910337 B CN 111910337B
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- circuit board
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- negative electrode
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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
- D04B27/32—Thread guide bar assemblies with independently-movable thread guides controlled by Jacquard mechanisms
Abstract
The invention relates to a separable piezoelectric jacquard comprising an electrode assembly, which comprises a piezoelectric ceramic element group, a needle plate, a fixed seat, a driving circuit and the 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.
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 an 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 No. 201810140458.5 filed by the applicant describes a piezoelectric jacquard mounting assembly with conductive contacts, comprising a piezoelectric jacquard, a guide bar connected with the piezoelectric jacquard, a circuit board arranged on the piezoelectric jacquard, characterized in that a plurality of conductive contacts are connected at an input point of the lower side of the circuit board, a circuit board base plate is fixed on one side of the guide bar facing the lower side of the circuit board, contact points corresponding to the plurality of conductive contacts are arranged on the circuit board base plate, the plurality of conductive contacts are electrically connected with the corresponding contact points through a plurality of corresponding holes arranged on the piezoelectric jacquard base, and the corresponding contact points are connected to an input interface at one end of the circuit board base plate.
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 prior art well external cable to provide signal input and power input moreover to more pleasing to the eye, and piezoelectricity merchant clamps and unloads very conveniently.
However, the technical solutions in the above applications still have disadvantages that the contact points of the plurality of conductive contacts and the contact points corresponding to the plurality of conductive contacts on the circuit board bottom plate cannot be precisely positioned sometimes, and are prone to be misaligned, and if the contact points are misaligned in the mounting process (for example, the voltage contact point and the signal point contact, the circuit board may be damaged), the electrical contact is poor or fails. The conductive contact piece is positioned by the positioning hole of the needle plate.
Chinese patent application No. 201820948018.8 provides a location installation's piezoelectricity merchant card installation component that has electrically conductive contact spare, including piezoelectricity merchant card, the sley bar of being connected with piezoelectricity merchant card, be provided with the circuit board on the piezoelectricity merchant card, be connected with a plurality of electrically conductive contact spare at the input point department of the downside of circuit board, be fixed with the circuit board bottom plate in one side of sley bar towards the downside of circuit board, be equipped with the contact point that corresponds with a plurality of electrically conductive contact spare on the circuit board bottom plate, a plurality of electrically conductive contact spare pass set up a plurality of corresponding holes on piezoelectricity merchant card cassette with the corresponding contact point electricity is connected, the corresponding contact point is connected to the input interface that is located circuit board bottom plate one end, its characterized in that still is equipped with the reference column on the lower surface of piezoelectricity merchant card cassette, be equipped with the locating hole that corresponds with the reference column on the circuit board bottom plate, the length of the positioning column is greater than the length of the conductive contact piece extending out of the lower surface of the piezoelectric jacquard clamping seat, so that after the positioning column is inserted into the corresponding positioning hole, the plurality of conductive contact pieces are electrically connected with the corresponding contact points. By adopting the positioning device for positioning and mounting, the problems that contact points which are arranged on a plurality of conductive contact elements and a circuit board bottom plate in the Chinese patent application No. 201810140458.5 and correspond to the plurality of conductive contact elements can not be accurately positioned sometimes and are easy to be misplaced are solved, so that accurate and reliable electric connection is realized.
Chinese patent application No. 201910921383.9 discloses a separable piezoelectric jacquard assembly which can be separated from other elements connected to the piezoelectric jacquard when the driving circuit board on the separable piezoelectric jacquard is in failure, so that the whole piezoelectric jacquard assembly is not required to be discarded, and the cost is reduced. The detachable piezoelectric jacquard comprises a piezoelectric ceramic element, a needle plate for fixing the piezoelectric ceramic element, a driving circuit board and a fixed seat, it is characterized in that the separable piezoelectric jacquard further comprises a switching circuit board and a probe assembly, the switching circuit board is provided with a connector, and is electrically connected with the connector arranged on the driving circuit board through the connector, the switching circuit board is electrically connected with the piezoelectric ceramic element through a wiring, the switching circuit board and the fixed seat are respectively fixed on the needle plate, the probe assembly is fixed on the needle plate through a hole on the needle plate, which is matched with the overall dimension of the probe assembly, one end of the probe assembly is provided with a connecting wire and is electrically connected with the driving circuit board through welding or a connector assembly, the other end of the probe component is provided with a spring needle, and the spring needle is electrically connected with a circuit board bottom plate arranged on the guide bar.
Chinese patent application No. 201910921383.9 discloses a disconnect-type piezoelectricity merchant card subassembly, including the negative pole subassembly, the negative pole subassembly includes base member board and holder, the base member board is equipped with the bridge portion and is located the centre gripping 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 centre gripping hole and respectively with piezoceramics element's electrode layer electrical contact is regarded as piezoceramics element's negative pole, the base member board then is supported the piezoceramics element's of faller fixed wall on.
Chinese patent application No. 202010155141.6 discloses detachable piezoelectricity merchant card including positive pole subassembly includes piezoelectric ceramic element subassembly, faller, dirver circuit board, fixing base, probe subassembly, every piezoelectric ceramic element in the piezoelectric ceramic element subassembly all has insulating middle substrate and two piezoelectric ceramic pieces that are located insulating middle substrate both sides respectively, the both sides of insulating middle substrate are attached with the conducting film, one side of piezoelectric ceramic piece is passed through the fixed attach of conducting film is in on the insulating middle substrate, the opposite side of piezoelectric ceramic piece has the electrode layer, the electrode layer is the negative pole, with dirver circuit board electricity is connected, its characterized in that still includes positive pole subassembly, positive pole subassembly includes cramping body, conducting strip subassembly, circuit board and 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.
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 present invention is directed to an electrode assembly by which both positive and negative electrodes of a piezoelectric jacquard element can be conveniently connected to a relay circuit board through the electrode assembly and connected to a driving circuit board through the relay circuit board, and further to provide a separable piezoelectric jacquard including the electrode assembly. In addition, according to the detachable piezoelectric jacquard mounting formula, the piezoelectric jacquard element is clamped into the clamping piece and then encapsulated by glue, so that clamping and power supply input can be realized, the assembly labor intensity is reduced, and particularly on a jacquard with a smaller center distance, the problem that leads are inconvenient to weld due to too small distance can be avoided. 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, wherein each piezoelectric ceramic element in the piezoelectric ceramic element group is provided with an insulating middle substrate and two piezoelectric ceramic pieces respectively positioned at two sides of the insulating middle substrate;
the clamping piece comprises a first side wall, a second side wall, a bottom wall and a plurality of spaced inner walls, wherein the plurality of spaced inner walls are positioned between the first side wall and the second side wall, the first side wall is positioned between the first side wall and the inner walls adjacent to the first side wall, the second side wall is positioned between the second side wall and the inner walls adjacent to the second side wall, clamping grooves for receiving the piezoelectric ceramic elements are formed between the adjacent inner walls, a plurality of positioning columns corresponding to the plurality of positioning holes arranged on the needle plate are arranged on the lower side of the bottom wall, the bottom wall is provided with a supporting part for supporting the piezoelectric ceramic elements, a part of the bottom wall on two sides of the supporting part and a part of the inner wall corresponding to the part of the bottom wall or the first side wall or the second side wall are removed to form a negative pole conducting strip mounting groove for mounting a negative pole conducting strip, and the clamping piece further comprises a first side wall, a second side wall and a plurality of inner walls, wherein the inner walls are positioned between the first side wall and the second side wall, the second side wall are positioned between the first side wall, the first side wall and the second side wall, the second side wall are removed, The second side wall and a part of each inner wall form a positive conducting plate mounting groove for mounting a positive conducting plate, and the clamping piece further comprises a plurality of positive conducting plate holes for receiving a part of the plurality of positive conducting plates to penetrate through;
the circuit board comprises a plurality of positive conducting strip contacts, a circuit board positive pole and a circuit board negative pole, the negative pole connecting piece is electrically connected to the circuit board negative pole, and the positive conducting strip contacts are electrically connected with the circuit board positive pole;
the negative electrode conducting strip comprises a first side piece, a second side piece and a connecting piece for combining the first side piece and the second side piece;
the positive conducting strip comprises a first pin, a second pin and a connecting part combining the first pin and the second pin;
when the piezoelectric ceramic element is assembled in place, the piezoelectric ceramic element is inserted into the clamping groove, the clamping piece is inserted into a plurality of positioning holes arranged on the needle plate through the plurality of positioning columns and fixed on the needle plate, the first side piece and the second side piece of the negative conducting piece are respectively inserted in the negative conducting piece mounting grooves on the two sides of the supporting part and are electrically connected with the electrode layer, the connecting sheet is positioned below the supporting part and is electrically connected with the negative connecting piece, the conductive film is electrically contacted with the first pin of the corresponding positive conducting sheet assembled in the corresponding positive conducting sheet mounting groove, the second pin of the corresponding conducting strip is inserted into the positive conducting strip hole and electrically contacted with the corresponding positive conducting strip contact on the circuit board, the circuit board is fixed on the needle plate, and the positive pole of the circuit board and the negative pole of the circuit board are electrically connected with the driving circuit.
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, and can also be separated from the driving circuit through the electrode assembly. Therefore, when the driving circuit or the piezoelectric ceramic element is broken or damaged, the piezoelectric jacquard can be conveniently replaced without discarding the whole piezoelectric jacquard.
The driving circuit of the invention can be arranged on the piezoelectric jacquard or outside the piezoelectric jacquard.
The clamping member of the present invention may be integrally formed, but is not limited thereto.
In one embodiment, the negative conductive sheet is a resilient negative conductive sheet.
In a preferred embodiment, at least one of the first side sheet and the second side sheet of the negative electrode conductive sheet is provided with a projection facing the electrode layer, the projection facing the electrode layer is cut from the first side sheet and/or the second side sheet, and the projection facing the electrode layer and the first side sheet and/or the second side sheet have a joint portion that is joined to each other, and the projection facing the electrode layer is rotatable with respect to the joint portion.
In a more preferred embodiment, the protrusion facing the electrode layer has a rectangular shape.
In one embodiment, the negative connector includes a negative connector body and at least one negative connector strip coupled to the negative connector body, the at least one negative connector strip being electrically connected to a negative of a circuit board on the circuit board.
In a preferred embodiment, the negative pole connecting piece comprises a negative pole connecting piece main body and two negative pole connecting strips combined with the negative pole connecting piece main body, the two negative pole connecting strips are respectively combined at two ends of the negative pole connecting piece main body, the front end of the negative pole connecting strip is provided with an opening matched with the positioning column on the needle plate, the positioning column on the needle plate penetrates through the opening to be inserted into the circuit board positioning hole for fixing when the assembly is completed, and the front end of the negative pole connecting strip is electrically connected to the negative pole on the circuit board.
In a specific embodiment, the front end of the negative connecting strip is welded with a negative bonding pad of the circuit board.
In a specific embodiment, the front end of the negative electrode connecting strip is electrically connected with the negative electrode on the circuit board in a pressing mode through riveting the positioning column on the needle plate and the circuit board.
In a preferred embodiment, be equipped with a plurality of downwardly extending's arch on the downside of supporting part, be equipped with on the negative pole conducting strip with protruding complex first pilot hole, be equipped with in the negative pole connecting piece main part with protruding complex a plurality of second pilot holes, and be equipped with on the faller with protruding complex recess, when the assembly is accomplished, a plurality of archs pass respectively first pilot hole the second pilot hole inserts in the recess.
The structure can ensure that the negative conducting strip is reliably and electrically connected with the negative connecting piece main body.
In a preferred embodiment, the positive conductive sheet is an elastic positive conductive sheet.
In a more preferred embodiment, the first leg of the elastic positive electrode conductive sheet is provided with a protruding portion facing the conductive film at a portion electrically connected to the conductive film, the protruding portion is cut from the first leg, and the protruding portion and the first leg have a joint portion joined to each other, and the protruding portion is rotatable with respect to the joint portion.
The structure of the elastic negative electrode conducting strip and the elastic positive electrode conducting strip can ensure the electric connection of the negative electrode conducting strip and the electrode layer and the electric connection of the positive electrode conducting strip and the conducting 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 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 a specific embodiment, the separable piezoelectric jacquard comprising the electrode assembly further comprises a probe and a connector, the driving circuit is a driving circuit board arranged on the piezoelectric jacquard, 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 patch part of the connector is electrically connected with a second patch 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 including a detachable piezoelectric jacquard of an electrode assembly;
FIG. 2 is a perspective view of the clamp of FIG. 1 from another perspective;
fig. 3 is a schematic perspective view of a negative electrode conductive sheet according to the present invention;
fig. 4 is a schematic perspective view of a positive electrode conductive sheet according to the present invention;
FIG. 5 is an exploded perspective view of the electrode assembly of the present invention;
FIG. 6 is a perspective view of the electrode assembly of FIG. 5, shown assembled;
FIG. 7 is a schematic structural view of a piezoelectric ceramic element according to the present invention;
FIG. 8 is a perspective exploded view of a detachable piezoelectric jacquard incorporating an electrode assembly according to the present invention; and
fig. 9 is a perspective view of the assembled detachable piezoelectric jacquard including the electrode assembly of fig. 8.
Detailed Description
The invention will be further explained with reference to the drawings. It is to be understood that the specific embodiments of the invention that are illustrated in the accompanying drawings are for purposes of description only and are not necessarily drawn to scale. 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, as may appear in the present invention, are relative concepts only and should not be construed as limiting the scope of the invention.
See fig. 1-9. FIG. 1 is a perspective view of a clamp of the present invention including a detachable piezoelectric jacquard of an electrode assembly; fig. 2 is a perspective view of the clamp of fig. 1 from another perspective. As shown in FIGS. 1 and 2, the clip 60 includes a first side wall 61, a second side wall 62, a bottom wall 68, and a plurality of spaced apart interior walls 63 between the first side wall 61 and the second side wall 62iEach of the inner walls may be discrete segments, for example, the first inner wall adjacent to the first side wall 61 may include a discrete first segment 63-1-1, second section 63-1-2 and a third section 63-1-3, the second inner wall next to the first inner wall may comprise a discontinuous first section 63-2-1, second section 63-2-2 and a third section 63-2-3, other inner walls 63-iAnd the first inner wall and the second inner wall have similar structures. For example, for a piezoelectric jacquard having 16 piezoceramic wafers, the clamp 60 has 15 similar internal walls between the first 61 and second 62 side walls.
A slot 630 for receiving the piezoelectric ceramic element is formed between the first sidewall 61 and the first inner wall adjacent to the first sidewall 61, between the second sidewall 62 and the inner wall adjacent to the second sidewall 62, and between the adjacent inner wallsiFor example, the clamping groove 610 formed between the first inner wall and the second inner wall2. A plurality of positioning columns (such as three positioning columns 601, 602 and 603) corresponding to a plurality of positioning holes (such as three positioning holes 201, 202 and 203) arranged on the needle plate 20 are arranged on the lower side of the bottom wall 68. The bottom wall 68 has a support portion 631 for supporting the piezoelectric ceramic elementiFor example, corresponding card slot 610-2The support part 6311. For a piezoelectric jacquard with 16 piezoelectric ceramic plates, there are 16 support parts, namely the support part 631 in fig. 1iIn (1)iMay be 1, 2, 3, …, 16. Support 631iA part of the bottom wall at both sides and a part of the inner wall corresponding to the part of the bottom wall or the first side wall 61 or the second side wall 62 are removed to form a structure for installing the negative conductive sheet 30iThe negative conductive plate mounting groove 630i. For example, the mounting groove 630 for the negative conductive plate2Is in removing the supporting portion 6311A part of the bottom wall on the right sideAnd a portion of the second inner wall.
The holder 60 further includes a first sidewall 61, a second sidewall 62 and a portion of each inner wall formed by removing the first sidewall 61, the second sidewall 62 and the portion of each inner wall for mounting the positive conductive tab 70iThe anode conducting strip mounting groove 670-i. By way of example, as shown in FIG. 1, in the third section 63 of the first inner wall1-3 and a third section 63 of the second inner wall2A positive electrode conductive sheet mounting groove 670-2 formed between-3.
The clamping member 60 further includes a plurality of positive conductive sheet holes 65i、66-iFor receiving the positive conductive sheet 70iThe second foot 703-i(see fig. 4) therethrough. The number of the positive electrode conducting sheet holes is twice that of the piezoelectric ceramic elements, namely each piezoelectric ceramic element is a double wafer, and each wafer corresponds to one positive electrode conducting sheet. Preferably, the positive electrode conductive sheet hole 65-iArranged in a row, positive conductive sheet holes 66iArranged in another row, which are separated by a predetermined distance, and the positive electrode conductive sheet holes 65iAnd positive electrode conductive sheet hole 66-iAre staggered.
It should be understood that the term "removed" in this application is for convenience of description only and does not require that a portion of the material be actually cut away. "remove" is intended to mean thinning of the wall thickness at the part concerned. It will be clear to the person skilled in the art that the clip 60 of the present application can be manufactured entirely in one piece, for example by injection moulding.
As shown in fig. 7, each piezoelectric ceramic element 10 of the piezoelectric ceramic element group 10iAll having an insulating intermediate substrate 120iAnd on an insulating intermediate substrate 120iPiezoelectric ceramic pieces 130 on two sidesi(the other is not shown). In an insulating intermediate substrate 120iThe front end of the yarn guide is also provided with a yarn guide needle 110i. Insulating intermediate substrate 120-iWith conductive films 170 attached to both sidesi(the other side is not shown), the piezoelectric ceramic sheet 130iIs provided through the conductive film 170-iFixedly attached to an insulating intermediate substrate 120iThe above. Piezoelectric ceramic piece 130-iHas an electrode layer (i.e. the side of fig. 7 facing the reader, not shown) for contacting the negative conductive sheet 30iAnd (6) electrically connecting. Conductive film 170-iFor use with the positive conductive sheet 70iAnd (6) electrically connecting.
As shown in fig. 3, the negative conductive sheet 30-iComprises a first side piece 301iThe second side plate 303-iAnd bonding the first side panel 301iAnd a second side piece 303iConnecting piece 302-i. Preferably, the connecting piece 302-2 is provided with a first assembling hole 3021-i. Preferably, the negative conductive sheet 30-iFirst side piece 301iAnd a second side piece 303iIs provided with a protrusion 3011 facing the electrode layeri、3031- i The protrusion 3011 facing the conductive layeri、3031-iRespectively cut from the first side piece 301iThe second side plate 303-iAnd the protrusion 3011 facing the electrode layeri、3031-iRespectively connected with the first side piece 301iThe second side plate 303-iHaving joint portions 3011 bonded to each otheria、3031--iaAnd toward the protruding portion 3011 of the electrode layeri、3031-iCan be opposite to the combining part 3011ia、3031-iaAnd (4) rotating. Further preferably, the first side sheet 301-iAnd a second side piece 303iOn which protrusions 3011 facing the electrode layer are respectively disposedi、3031-i. Protrusion 3011 facing the electrode layeri、3031-iPreferably having a rectangular shape.
Fig. 4 is a schematic perspective view of a positive electrode conductive sheet according to the present invention. The positive conductive sheet 70-i of the positive conductive sheet set 70 comprises a first pin 701-iSecond foot 703-iAnd combining the first foot 701-iAnd a second foot 703-iThe connecting portion 702i. Preferably, in the contact with the conductive film 170- i First pin 701 for electrical connectioniIs provided with a conductive film 170 facing the mountingiThe first leg protrusion 7011-iThe first leg protrusion 7011-iSimilar to the negative conductive sheet 30-iUpper protrusion 3011-iOr 3031-i. Second foot 703-iThe upper part is also preferably provided with a platform part 7031-iTo facilitate positioning against the corresponding portion of the clamp 60 when installed.
Refer to fig. 5, 6, and 8. FIG. 5 is an exploded perspective view of the electrode assembly of the present invention; fig. 6 is a perspective view illustrating the completed assembly of the electrode assembly of fig. 5. As shown in fig. 5, the negative connector 31 of the present invention includes a negative connector main body 311 and two negative connector bars 312 and 313 combined with the negative connector main body 311, the two negative connector bars 312 and 313 are respectively combined at two ends of the negative connector main body 311, the front ends of the negative connector bars 312 and 313 are provided with openings 31231 (another not shown) matched with the positioning posts 231 and 233 on the needle board 20, and when the assembly is completed, the positioning posts 231 and 233 on the needle board 20 are inserted into the positioning holes 531 and 533 of the circuit board 50 through the openings 31231 (another not shown) to be fixed, and the front ends 3123 (another not shown) of the negative connector bars 312 and 313 are connected to the pads (not shown) for negative electrodes on the circuit board 50 by welding.
Of course, the positioning posts 231 and 233 on the needle plate may be riveted with the circuit board 50, so that the front ends of the negative connecting strips 312 and 313 are pressed against the negative electrodes on the circuit board to realize electrical connection.
For ease of connection, the negative connecting straps 312, 313 are also provided with climbing portions 3122, 3132 to allow the negative connecting straps 312, 313 to climb to a height suitable for connection with the wiring board 50.
The negative electrode connecting member body 311 further has a second fitting hole 311iSecond assembly hole 311- i Support 631 for receiving slave clamp 60iA plurality of protrusions 6311 provided on the lower side surface ofi。
Fig. 6 is a perspective view illustrating the completed assembly of the electrode assembly of fig. 5. As shown in fig. 6 (see fig. 1, 2, 3 and 4), when the assembly is completed, the negative conductive sheet 30 of the negative conductive sheet set 30-iRespectively from the corresponding support part 631iTwo sides are upwards inserted into the negative conducting strip mounting groove 630iThe positive conductive sheet 70 of the positive conductive sheet group 70iFirst foot 701-iAnd a second foot 703-iRespectively inserted into the corresponding anode conducting strip mounting grooves 670-iAnd corresponding positive electrode conductive sheet hole 65-iOr 66-iAnd the second leg 703-iIs aligned with the end of the circuit board 50The pole conductive sheet contacts 510 are electrically connected, respectively. 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 positive electrode conductive sheet hole 65-iOr 66-iArranged in two rows and staggered as shown in fig. 1. 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 connecting strips. 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 connector 830 at the front end of the driving circuit board 80. See fig. 8, 9.
The socket connector 40 includes electrode contacts 420 and a first patch section, 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. 8, 9. .
Alternatively, the first patch part may also be a plug and correspondingly the second patch part a jack.
Referring again to FIG. 6, with simultaneous reference to FIGS. 1, 2, 3, 4, and 5, the support 631 once assemblediIs provided with a plurality of protrusions 6311 extending downwardsiCorrespondingly pass through the connecting piece 302iProvided with a first assembly hole 3021-iAnd a second fitting hole 311 provided on the negative electrode connecting member main body 311i. The front end 3123 (the other front end is not shown) of the negative connection bars 312, 313 of the negative connection piece 31 is located below the wiring board 50, and the front end opening 31231 (the other front end opening is not shown) is located below the positioning holes 531, 533 (not shown) and aligned with the positioning holes 531, 533.
With continued reference to fig. 1-8. In order to obtain the separated piezoelectric jacquard 100 with the electrode assembly of the present invention, the piezoelectric ceramic element 10 in the piezoelectric ceramic element group 10 can be firstly obtainediRespectively inserted into the corresponding slots 610 of the piezoelectric ceramic elementiWherein the piezoelectric ceramic element 10-iThe front end of the fixing device is clamped into the fixing groove 610 formed by the two adjacent inner wallsi-1, a conductive film 170-iAnd a positive conductive sheet 70-iFirst foot 701-iElectrical contact, electrode layer and negative conductive sheet 30-iFirst side piece 301iAnd a second side piece 303iAnd (6) electrically contacting. The assembled electrode assembly of fig. 6 with the piezo-ceramic element group 10 is then positionally mounted on the needle plate 20 by inserting the three positioning posts 601, 602, 603 on the underside of the bottom wall 68 into the corresponding three positioning holes 201, 202, 203 on the needle plate 20. In order to make the negative conductive plate 30-iAnd the negative electrode connecting member main body 311iTo realize reliable electrical connection, a support part 631 is provided on the needle plate 20iA downwardly extending protrusion 6311 provided on the lower side surfaceiAnd a groove 2311 inserted. The positioning posts 231, 233 on the needle plate 20 are inserted through the front end openings 31231 (another not shown) of the negative electrode connecting bars 312, 313 into the positioning holes 531, 533 of the wiring board 50 to be fixed.
A second patch panel on the driver circuit board 80, the patch plug 830, is inserted into the patch jack 430 to make an electrical connection.
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 tailstock 95 and a corresponding pogo pin hole 290 on the needle plate 20, respectively.
The tail frame 95 is fixed to the needle plate 20 by inserting positioning posts 951 (two may be provided) provided thereon into positioning holes 251 (two are provided, respectively) of the needle plate 20 and screwing a screw (not shown) into a screw hole 253 provided on the needle plate 20 through a screw hole 953 provided on the tail frame 95.
The tail frame 95 may have two driving circuit board fixing posts 9501, and correspondingly, the driving circuit board 80 may have two driving circuit board fixing holes 801. The driving circuit board 80 is fixed to the tail stock 95 by caulking the driving circuit board fixing post 9501 through the driving circuit board fixing hole 801. The assembled detachable piezoelectric jacquard with electrode assembly of the present invention is shown in fig. 9.
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.
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 an electrode assembly, and comprises a piezoelectric ceramic element group, a needle plate, a fixed seat and a driving circuit, wherein each piezoelectric ceramic element in the piezoelectric ceramic element group is provided with an insulating middle substrate and two piezoelectric ceramic pieces which are respectively positioned at two sides of the insulating middle substrate;
the clamping piece comprises a first side wall, a second side wall, a bottom wall and a plurality of spaced inner walls, wherein the plurality of spaced inner walls are positioned between the first side wall and the second side wall, the first side wall is positioned between the first side wall and the inner walls adjacent to the first side wall, the second side wall is positioned between the second side wall and the inner walls adjacent to the second side wall, clamping grooves for receiving the piezoelectric ceramic elements are formed between the adjacent inner walls, a plurality of positioning columns corresponding to the plurality of positioning holes arranged on the needle plate are arranged on the lower side of the bottom wall, the bottom wall is provided with a supporting part for supporting the piezoelectric ceramic elements, a part of the bottom wall on two sides of the supporting part and a part of the inner wall corresponding to the part of the bottom wall or the first side wall or the second side wall are removed to form a negative pole conducting strip mounting groove for mounting a negative pole conducting strip, and the clamping piece further comprises, The second side wall and a part of each inner wall form a positive conducting plate mounting groove for mounting a positive conducting plate, and the clamping piece further comprises a plurality of positive conducting plate holes for receiving a part of the plurality of positive conducting plates to penetrate through;
the circuit board comprises a plurality of positive conducting strip contacts, a circuit board positive pole and a circuit board negative pole, the negative pole connecting piece is electrically connected to the circuit board negative pole, and the positive conducting strip contacts are electrically connected with the circuit board positive pole;
the negative electrode conducting strip comprises a first side piece, a second side piece and a connecting piece for combining the first side piece and the second side piece;
the positive conducting strip comprises a first pin, a second pin and a connecting part combining the first pin and the second pin;
when the piezoelectric ceramic element is assembled in place, the piezoelectric ceramic element is inserted into the clamping groove, the clamping piece is inserted into a plurality of positioning holes arranged on the needle plate through the plurality of positioning columns and fixed on the needle plate, the first side piece and the second side piece of the negative conducting piece are respectively inserted in the negative conducting piece mounting grooves on the two sides of the supporting part and are electrically connected with the electrode layer, the connecting sheet is positioned below the supporting part and is electrically connected with the negative connecting piece, the conductive film is electrically contacted with the first pin of the corresponding positive conducting sheet assembled in the corresponding positive conducting sheet mounting groove, the second pin of the corresponding positive conducting plate is inserted into the positive conducting plate hole and electrically contacted with the corresponding positive conducting plate contact on the circuit board, the circuit board is fixed on the needle plate, and the positive pole of the circuit board and the negative pole of the circuit board are electrically connected with the driving circuit.
2. The detachable piezoelectric jacquard machine according to claim 1, wherein the negative conductive sheet is an elastic negative conductive sheet.
3. The detachable piezoelectric jacquard machine according to claim 2, wherein at least one of the first side piece and the second side piece of the negative electrode conductive sheet is provided with a protrusion facing the electrode layer, the protrusion facing the electrode layer is cut from the first side piece and/or the second side piece, and the protrusion facing the electrode layer and the first side piece and/or the second side piece have a joint portion joined to each other, and the protrusion facing the electrode layer is rotatable with respect to the joint portion.
4. The detachable piezoelectric jacquard machine including an electrode assembly according to claim 3, wherein the protrusion facing the electrode layer has a rectangular shape.
5. The detachable piezoelectric jacquard machine according to claim 1, wherein the negative electrode connector comprises a negative electrode connector body and at least one negative electrode connecting bar combined with the negative electrode connector body, the at least one negative electrode connecting bar being electrically connected to the negative electrode of the circuit board.
6. The detachable piezoelectric jacquard machine including an electrode assembly according to claim 5, wherein the negative electrode connector comprises a negative electrode connector body and two negative electrode connecting strips combined with the negative electrode connector body, the two negative electrode connecting strips are respectively combined at two ends of the negative electrode connector body, the front end of the negative electrode connecting strip is provided with an opening matched with the positioning column on the needle plate, when the assembly is completed, the positioning column on the needle plate passes through the opening to be inserted into the circuit board positioning hole for fixing, and the front end of the negative electrode connecting strip is electrically connected to the negative electrode of the circuit board.
7. The detachable piezoelectric jacquard machine according to claim 5, wherein a plurality of protrusions extending downward are formed on a lower side surface of the support portion, a first fitting hole engaged with the protrusions is formed on the negative conductive plate, a plurality of second fitting holes engaged with the protrusions are formed on the negative connector main body, a groove engaged with the protrusions is formed on the needle plate, and when the assembly is completed, the protrusions pass through the first fitting hole, the second fitting hole, and are inserted into the groove.
8. The detachable piezoelectric jacquard machine according to claim 1, wherein the positive conductive sheet is an elastic positive conductive sheet, a first leg of the elastic positive conductive sheet is provided with a protrusion facing the conductive film at a portion electrically connected to the conductive film, the protrusion is cut from the first leg, and the protrusion and the first leg have a joint portion joined to each other, and the protrusion is rotatable with respect to the joint portion.
9. The detachable 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 according to claim 1, wherein the detachable piezoelectric jacquard machine further comprises a probe and a connector, the driving circuit 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 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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| CN202010794840.5A CN111910337B (en) | 2020-08-10 | 2020-08-10 | Separable piezoelectric jacquard including electrode assembly |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112877894B (en) * | 2020-12-31 | 2023-02-03 | 福建宏宇电子科技有限公司 | Wireless jacquard guide bar and warp knitting machine using same |
| CN113774557B (en) * | 2021-09-24 | 2023-04-07 | 江苏明朗星新能源科技发展有限公司 | Separable piezoelectric jacquard comprising positive and negative electrode assemblies |
| 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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