CN201638855U

CN201638855U - Novel twin lamella

Info

Publication number: CN201638855U
Application number: CN 201020161223
Authority: CN
Inventors: 许致中; 蔡颖宪; 赵争锋; 杨莉莉; 许文龙
Original assignee: NAICI (XI'AN) APPLIED MATERIALS CO Ltd
Current assignee: NAICI (XI'AN) APPLIED MATERIALS CO Ltd
Priority date: 2010-04-16
Filing date: 2010-04-16
Publication date: 2010-11-17
Anticipated expiration: 2020-04-16

Abstract

The utility model provides a novel twin lamella, which comprises an upper ceramic base layer, a lower ceramic base layer and a middle layer, and is characterized in that the middle layer comprises a fiber base layer, a copper skin and a copper bar which is shaped like the Chinese character CHUAN, the fiber base layer is formed by pouring glue on glass fibers after being arranged in a single direction or being alternatively arranged, the copper skin is embedded on the end of the surface of the fiber base layer, the copper bar is embedded on the fiber base layer and is connected with the copper skin, and a conductive silver adhesive layer is printed on the surface of the upper and the lower ceramic base layers With the middle layer structure, the electric performance and the mechanical performance of the piezoelectric chip can be simultaneously considered and matched, and the electric performance and the work stability of the twin lamella can be improved.

Description

A kind of novel twin lamella

Technical field:

The utility model can be used for the twin lamella that use in fields such as textile machine, Aero-Space, precision optics, micromachine, laser communications, robot.

Background technology

Piezoelectric bimorph is to utilize the inverse piezoelectric effect of dielectric in electric field directly to convert electrical energy into the inverting element of mechanical energy.The structure of piezoelectric bimorph is very big to its performance impact.Existing twin lamella comprises ceramic basic unit 4 and intermediate layer up and down, has only fiber basic unit 1 and copper sheet 2 in the intermediate layer, as shown in Figure 4.Just simply be coated with ceramic basic unit 4 and silver layer 5 up and down in the intermediate layer, as shown in Figure 8.There is hidden danger in this structure twin lamella aspect the useful life of the stability of electrical property and twin lamella, and the displacement and the power of twin lamella output simultaneously are less.

Summary of the invention

The purpose of this utility model provides a kind of novel twin lamella, and is simple in structure, reasonable in design, obviously improved the performance of twin lamella.

The technical solution of the utility model is: a kind of novel twin lamella, comprise ceramic basic unit and intermediate layer up and down, it is characterized in that the intermediate layer comprises fiber basic unit, copper sheet and river type copper bar, fiber basic unit is that the glass fibre unidirectional array or the back encapsulating compound that is staggered are prepared from, copper sheet is embedded in the termination of fiber base laminar surface, and river type copper bar is embedded in the fiber basic unit and with copper sheet and is connected, and is printed with the conductive silver glue-line at ceramic base laminar surface up and down.

Wherein the quantity of river type copper bar is no less than 1.The printed strip number of conductive silver glue-line is no less than 1.

The utlity model has following advantage:

Interlayer structure of the present utility model can make the electrical property of piezoelectric ceramic piece and mechanical performance be taken into account simultaneously and mate, and has improved twin lamella electrical property and job stability.

The utility model can be realized twin lamella after bonding, and the electric capacity and the loss of ceramics are exported accurately; Pottery and intermediate layer bonding tight; Fix an end, the free-ended output pressure twin lamella bonding than other intermediate layer and adhering method is big, and the output displacement is controlled; Twin lamella does not have leakage current.

Description of drawings

Fig. 1 is the river fiber type sheet interlayer structure schematic diagram that two river type copper bars are arranged.

Fig. 2 is the river fiber type sheet interlayer structure schematic diagram that three river type copper bars are arranged.

Fig. 3 is the river fiber type sheet interlayer structure schematic diagram that four river type copper bars are arranged.

Fig. 4 is a general fibre chip architecture schematic diagram.

Fig. 5 is a silver-coated layer single-chip surface printing conductive silver glue structure chart.

Fig. 6 is a silver-coated layer single-chip surface printing conductive silver glue structure chart.

Fig. 7 is a silver-coated layer single-chip surface printing conductive silver glue structure chart.

Fig. 8 is a silver-coated layer single-chip structure chart.

Embodiment

Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.

Be applied to the piezoelectricity Jacquard comb piezoelectric bimorph of textile machine, as Fig. 1, Fig. 2 and shown in Figure 3, the intermediate layer of twin lamella comprises fiber basic unit 1, copper sheet 2 and river type copper bar 3, fiber basic unit 1 is that the glass fibre unidirectional array or the back encapsulating compound that is staggered are prepared from, copper sheet 2 is embedded in the termination on fiber basic unit 1 surface, and river type copper bar 3 is embedded in the fiber basic unit 1 and with copper sheet 2 and is connected, and river type copper bar 3 is respectively 2,3 and 4.

As Fig. 5, Fig. 6 and shown in Figure 7, conductive silver glue-line 6 is arranged at ceramic basic unit 4 surface printings up and down.The printed strip number of conductive silver glue-line is the 1-3 bar.So up and down ceramic basic unit 4 just can with the intermediate layer use that cooperatively interacts, when promptly conductive silver glue-line 6 is 1, be used with the intermediate layer that 2 river type copper bars 3 are arranged; When conductive silver glue-line 6 is 2, be used with the intermediate layer that 3 river type copper bars 3 are arranged; When conductive silver glue-line 6 is 3, be used with the intermediate layer that 4 river type copper bars 3 are arranged; Behind the printing conductive elargol, the static displacement of twin lamella more not printing conductive elargol twin lamella is big, and power output is suitable.

The utility model adopts unidirectional fibre to arrange, have the river fiber type sheet of river type copper bar, ceramics surface printing conductive silver glue, adopt the technique for sticking of optimizing to carry out the bonding of twin lamella, it is at one end fixing effectively to improve the beam type twin lamella, in the process of free end vibration, comprise the stability of the electrical property of electric capacity, loss and leakage current etc.Through long burn-in test, find the stable performance in test process of Jacquard comb sheet.

Claims

1. novel twin lamella, comprise ceramic basic unit (4) and intermediate layer up and down, it is characterized in that the intermediate layer comprises fiber basic unit (1), copper sheet (2) and river type copper bar (3), fiber basic unit (1) is by the glass fibre unidirectional array or is staggered and forms, copper sheet (2) is embedded in the termination on fiber basic unit (1) surface, and river type copper bar (3) is embedded in fiber basic unit (1) and goes up and is connected with copper sheet (2), about ceramic basic unit (4) surface printing conductive silver glue-line (6) is arranged.

2. a kind of novel twin lamella as claimed in claim 1 is characterized in that the quantity of river type copper bar (3) is no less than 1.

3. a kind of novel twin lamella as claimed in claim 1 is characterized in that the printed strip number of conductive silver glue-line (6) is no less than 1.