CN111270407A - Detachable piezoelectricity merchant card including positive pole subassembly - Google Patents

Abstract

The utility model provides a detachable piezoelectricity merchant card includes piezoelectric ceramic component subassembly, faller, drive circuit board, fixing base, probe subassembly including anodal subassembly, anodal subassembly includes clamping body, conducting strip subassembly, circuit board and connector. The invention can reliably realize the electrical connection of the anode of each piezoelectric ceramic element in the piezoelectric ceramic element assembly and the driving circuit board, and can also be separated from the driving circuit board through the anode 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.

Description

Detachable piezoelectricity merchant card including positive pole subassembly

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.

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, 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.

A disconnect-type piezoelectricity merchant card subassembly that discloses in chinese patent application No. 201910921383.9, 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 is then supported the piezoceramics element's of faller fixed wall on.

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 positive electrode of the piezoelectric jacquard element in the prior art is generally connected to the driving circuit board by welding or connected to the driving circuit board by an adapter circuit board. The invention aims to design a positive pole assembly, by which a positive pole of a piezoelectric jacquard element can be connected to a switching circuit board through the positive pole assembly and connected to a driving circuit board through the switching circuit board, and further provides a separable piezoelectric jacquard comprising the positive pole assembly. The detachable piezoelectric jacquard can be separated from other elements connected with the piezoelectric jacquard when a driving circuit board on the detachable piezoelectric jacquard breaks down, so that the whole piezoelectric jacquard assembly does not need to be discarded, and the cost is reduced.

The separable piezoelectric jacquard card comprises a piezoelectric ceramic element assembly, a needle plate, a driving circuit board, a fixed seat and a probe assembly, wherein each piezoelectric ceramic element in the piezoelectric ceramic element assembly is provided with an insulating middle substrate and two piezoelectric ceramic pieces which are respectively positioned at two sides of the insulating middle substrate, conductive films are attached to two sides of the insulating middle substrate, one side of each piezoelectric ceramic piece is fixedly attached to the insulating middle substrate through the conductive films, the other side of each piezoelectric ceramic piece is provided with an electrode layer, the electrode layer is a negative electrode and is electrically connected with the driving circuit board, and the separable piezoelectric jacquard card is characterized by further comprising an anode assembly, and the anode assembly comprises a clamping body, a conductive piece 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.

In one embodiment, the conductive sheets are elastic conductive sheets, the first leg is provided with a bending portion, and the bending portions of two adjacent conductive sheets are oppositely arranged, so that when the insulating intermediate substrate is installed in place, the bending portions of the two adjacent conductive sheets clamp the end of the insulating intermediate substrate with the exposed conductive film.

In one embodiment, the clamping body further comprises an insulating part located between and insulating two adjacent conductive sheets.

In one embodiment, the insulating portion is an insulating post.

In one embodiment, the negative electrode is electrically connected to the driving circuit board through a negative electrode assembly, the negative electrode assembly includes a base plate and a clamping member, the base plate is provided with a bridge portion and clamping holes located at two sides of the bridge portion, the clamping member is provided with a horizontal portion and clamping pieces located at two sides of the horizontal portion and respectively combined with the horizontal portion, when the clamping member is installed in place, the clamping pieces penetrate through the clamping holes and respectively electrically contact with electrode layers of the piezoelectric ceramic elements, and the base plate is supported on a fixing wall of the piezoelectric ceramic elements of the needle plate.

The negative electrode assembly is the same as the negative electrode assembly in a split piezoelectric jacquard assembly disclosed in chinese patent application No. 201910921383.9, which is hereby incorporated by reference in its entirety.

In one embodiment, the negative electrode assembly is electrically connected to an electrode output point of the circuit board.

Preferably, the negative electrode assembly is electrically connected to two electrode output points of the circuit board. By electrically connecting both the positive and negative electrodes of the piezoelectric ceramic element to electrodes on a circuit board

And the output point enables the wiring to be simpler and the disassembly to be more convenient.

As a preferred scheme, the negative electrode assembly is provided with a connecting hole on the base plate, the positive electrode assembly is provided with a connecting plate on the clamping body, the connecting plate is provided with a connecting column, and the connecting column is inserted into the connecting hole to realize the connection of the clamping body of the negative electrode assembly and the clamping body of the positive electrode assembly.

Further preferably, the connecting plate and the clamping body are integrally formed, the connecting column penetrates through the connecting hole and then is riveted, the connecting plate is provided with an insulating extension portion extending downwards from the lower surface of the connecting plate, and when the connecting plate is installed in place, the insulating extension portion is located between two adjacent conducting strips to insulate the two adjacent conducting strips.

The negative electrode assembly and the positive electrode assembly are connected in the mode, so that the detachable piezoelectric jacquard is more convenient to mount and dismount.

In one embodiment, the first patch part is a patch jack and the second patch part is a plug; or the first patch part is a patch plug, and the second patch part is a patch hole.

Drawings

FIG. 1 is a perspective exploded view of one embodiment of a detachable piezoelectric jacquard incorporating a positive electrode assembly according to the present invention;

FIG. 2 is a schematic structural view of a piezoelectric ceramic element according to the present invention;

fig. 3 is a perspective exploded view of the positive electrode assembly of fig. 1;

fig. 4 is a schematic perspective view of a conductive sheet and a clamping body of the positive electrode assembly in fig. 1;

FIG. 5 is a perspective view of the assembled positive electrode assembly;

FIG. 6 is a perspective view of an assembled detachable piezoelectric jacquard including a positive electrode assembly according to the present invention; and

fig. 7 is an exploded perspective view of the positive and negative electrode assemblies of the present invention that can be connected together.

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.

Figure 1 shows a perspective exploded view of one embodiment of a detachable piezoelectric jacquard incorporating a positive electrode assembly of the present invention. As shown in fig. 1, the detachable piezoelectric jacquard 100 including a positive electrode assembly of the present invention includes a needle plate 10, a piezoelectric ceramic element assembly 20, a negative electrode assembly 30, a probe assembly 40, a holder 50, a positive electrode assembly 60, and a driving circuit board 80.

As shown in fig. 1, the piezo-ceramic element assembly 20 is fixed to the needle board 10 and electrically connected to the driving circuit board 80 through the negative electrode assembly 30 and the positive electrode assembly 60, for example, by plugging the connector 810 on the driving circuit board 80 with the positive electrode assembly. The probe assembly 40 includes a plurality of double-ended probes, one end of which is electrically connected to the drive circuit board 80 and the other end of which is electrically connected to a circuit board substrate (not shown) provided on the guide bar through the insulation holes 140 of the needle board 10. The mounting block 50 is secured to the needle board 10 by screwing set screws (not shown) into the holes 505 and holes 105, and the insulation holes 540 at the front end of the mounting block 50 are aligned with the insulation holes 140 in the needle board 10 for the probe assembly 40 to pass through. The fixing base 50 may further include a fixing post 501 for fixing the driving circuit board 80, and the fixing post 501 passes through the mounting hole 801 of the driving circuit board 80 and fixes the driving circuit board 80 by riveting.

Reference is now made to fig. 2. Each of the piezoelectric ceramic elements 201 in the piezoelectric ceramic element assembly 20 has an insulating intermediate substrate 220 and piezoelectric ceramic sheets 230 (the other is not shown) on both sides of the insulating intermediate substrate 220. A yarn guide needle 210 is further provided at the front end of the insulating intermediate substrate 220. Conductive films 260 (the other side is not shown) are attached to both sides of the insulating intermediate substrate 220, and one side of the piezoelectric ceramic sheet 230 is fixedly attached to the insulating intermediate substrate 220 through the conductive film 260. The other side of the piezoceramic wafer 230 has an electrode layer (i.e., the side of fig. 2 facing the reader has an electrode layer, not shown) that is electrically connected to the driver circuit board 80 via the negative electrode assembly 30.

Fig. 3 is an exploded perspective view of the positive electrode assembly of fig. 1. The positive electrode assembly 60 includes a holder body 620, a conductive sheet assembly 630, a wiring board 640, and a connector 610. The holder body 620 includes receiving grooves for receiving the piezo elements, and the number of receiving grooves corresponds to the number of piezo elements in the piezo element assembly 20. One of the receiving slots 6201 is shown in fig. 2. The receiving groove 6201 receives the end 260 with the exposed conductive film of the intermediate substrate of the corresponding piezoelectric ceramic element. Conductive sheets corresponding to the receiving groove 6201 are the conductive sheet 631 and the conductive sheet 632. The conductive sheet 631 includes a first leg 6312, a second leg 6313, and a connection portion 6311 connecting the first leg 6312 and the second leg 6313, wherein a bent portion 63121 is provided on the first leg 6312; the conductive sheet 632 has a similar structure, except that a bent portion 63221 provided on the first leg thereof is different from the bent portion 63121 provided on the first leg 6312. For example, if the bent portion 63121 provided on the first leg 6312 is bent inward (into the paper), the bent portion 63221 provided on the first leg of the conductive sheet 632 is bent outward (out of the paper). See fig. 4. Thus, when the conductive sheet 631 and the conductive sheet 632 are inserted into the receiving groove 6201 from the end 260 with the exposed conductive film of the middle substrate of the corresponding piezo-ceramic element, the bending portion 63121 formed on the first leg 6312 and the bending portion 63221 formed on the first leg of the conductive sheet 632 cooperate to apply an elastic force to the end 260 with the exposed conductive film of the middle substrate of the corresponding piezo-ceramic element, thereby achieving a reliable electrical connection. The second leg 6313 of the conductive sheet 631 is inserted into the corresponding electrode hole 6202; the second leg 6323 of the conductive pad 632 is inserted into the corresponding electrode hole 6204, and the conductive pad 631 and the conductive pad 632 are separated by the insulating pillar 6203. The insulating posts are not required and other insulating means may be used to separate adjacent conductive sheets. The other conductive sheets in the conductive sheet assembly 630 are identical or similar in structure and installation to the conductive sheet 631 and the conductive sheet 632.

As shown in fig. 3, the circuit board 640 includes conducting strip contacts at least equal to the number of conducting strips in the conducting strip assembly 630, and the conducting strip contacts correspond to the conducting strips one to one. For example, as shown in fig. 3, the conductive pad contact 641 corresponds to the conductive pad 631, and the conductive pad contact 642 corresponds to the conductive pad 632. When the wiring board 640 is mounted in place by being inserted into the mounting portion 6206 of the clamping body 620, the second leg 6313 of the conductive strip 631 makes electrical contact with the conductive strip contact 641, and the second leg 6323 of the conductive strip 632 makes electrical contact with the conductive strip contact 642. The conductive pads and corresponding conductive pad contacts may be electrically connected by soldering.

When mounted in place, circuit board 640 is secured to pin board 10 by inserting securing posts 101 (one on each side, the other not shown, see fig. 6) on the pin board into securing holes 645 on the circuit board.

The circuit board 640 also has a plurality of electrode output points 643 thereon. The number of electrode output points 643 is at least equal to or greater than the number of conductive pad contacts. The electrode output points 643 may be arranged in one row or two rows. Preferably in two rows to accommodate the size of the connector 810 at the front end of the drive circuit board 80.

The socket connector 610 includes an electrode contact 612 and a first patch section, i.e., a patch hole 611. The number of electrode contacts 612 is the same as the number of electrode output points 643 and corresponds to each other. When mounted in place, the electrode contacts 612 are each in electrical contact with a corresponding electrode output point 643. The connector 610 also includes patch jacks 611, the patch jacks 611 corresponding one-to-one with the electrode contacts 612 and providing electrical communication therebetween. The patch jack 611 receives a second patch portion, i.e., a patch plug 810, on the driver circuit board 80 to make an electrical connection with the driver circuit board 80.

Alternatively, the first patch part may also be a plug and correspondingly the second patch part a jack.

The assembled positive electrode assembly 60 is shown in fig. 5. The assembled detachable piezoelectric jacquard 100 including the positive electrode assembly is shown in fig. 6.

The electrode led out from the negative electrode assembly 30 of the present invention can be directly electrically connected to the driving circuit board 80, or can be connected to the electrode output point 643 on the circuit board 640, and then electrically connected to the plug 810 of the driving circuit board 80 through the connector 610. This design facilitates easier removal and separation of circuit board 800 from other components.

Fig. 7 is an exploded perspective view showing that the clamping body of the positive electrode assembly and the negative electrode assembly can be connected together in the present invention. As shown in fig. 7, the negative electrode assembly 30 includes a base plate 310 and a clamping member 320. The base plate 310 is provided with connection holes 3101 and 3102. Also shown in fig. 7 are a clamping body 620 and a conductive sheet assembly 630 in the positive electrode assembly. The clamping body 620 is provided with a connecting plate 621, and the connecting plate 621 is provided with connecting posts 6211 and 6212 which are matched with the connecting holes 3101 and 3102. During installation, the connecting posts 6211, 6212 are inserted into the connecting holes 3101, 3102 to connect the negative electrode assembly 30 and the clamping body 620 of the positive electrode assembly. The connecting posts 6211, 6212 may be further secured by riveting after passing through the connecting holes 3101, 3102.

The connecting plate 621 and the connecting posts 6211, 6212 thereon may be integrally formed with the gripping body.

Although not shown, the connection plate 621 may be provided with an insulating extension extending downward from a lower surface thereof, and when mounted in place, the insulating extension is located between and insulates two adjacent conductive sheets.

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 anode component, a needle plate, a driving circuit board, a fixed seat and a probe component, wherein each piezoelectric ceramic element in the piezoelectric ceramic element component 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 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 first patch part; when the insulating middle substrate is assembled in place, one end of the insulating 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-in part of the connector is electrically connected with the second plug-in part on the driving circuit board.

2. The detachable piezoelectric jacquard machine according to claim 1, wherein the conductive sheets are elastic conductive sheets, the first leg has a bent portion, and the bent portions of two adjacent conductive sheets are oppositely disposed, so that when the separable piezoelectric jacquard machine is mounted in place, the bent portions of two adjacent conductive sheets clamp the end of the insulating intermediate substrate with the exposed conductive film.

3. The separable piezoelectric jacquard machine according to claim 1, wherein the clamp body further comprises an insulating part located between and insulating two adjacent conductive sheets.

4. The separable piezoelectric jacquard machine comprising a positive electrode assembly according to claim 1, wherein said insulation is an insulating cylinder.

5. The detachable piezoelectric jacquard machine according to claim 1, wherein the negative electrode is electrically connected to the driving circuit board through a negative electrode assembly, the negative electrode assembly comprises a base plate and a clamping member, the base plate is provided with a bridge portion and clamping holes at two sides of the bridge portion, the clamping member is provided with a horizontal portion and clamping pieces at two sides of the horizontal portion and respectively combined with the horizontal portion, when the clamping pieces are installed in place, the clamping pieces pass through the clamping holes and respectively electrically contact with the electrode layers of the piezoelectric ceramic elements, and the base plate is supported on the fixing wall of the piezoelectric ceramic element of the needle plate.

6. The detachable piezoelectric jacquard machine according to claim 5, wherein said negative electrode assembly is electrically connected to an electrode output point of said circuit board.

7. The detachable piezoelectric jacquard machine according to claim 6, wherein said negative electrode assembly is electrically connected to two electrode output points of said circuit board.

8. The detachable piezoelectric jacquard machine according to claim 5, wherein the negative electrode assembly is provided with a connecting hole on the base plate, the positive electrode assembly is provided with a connecting plate on the clamping body, the connecting plate is provided with a connecting column, and the connecting column is inserted into the connecting hole to connect the clamping body of the negative electrode assembly and the clamping body of the positive electrode assembly.

9. The detachable piezoelectric jacquard machine according to claim 8, wherein the connecting plate is integrally formed with the clamping body, the connecting post is riveted after passing through the connecting hole, and the connecting plate is provided with an insulating extension extending downward from the lower surface of the connecting plate, and when installed in place, the insulating extension is positioned between two adjacent conducting plates to insulate the two adjacent conducting plates.

10. The detachable piezoelectric jacquard machine according to claim 1, wherein the first patch is a patch jack and the second patch is a plug; or the first patch part is a patch plug, and the second patch part is a patch hole.

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