CN216288361U

CN216288361U - Polarization clamp for polarizing circular tube-shaped piezoelectric ceramics

Info

Publication number: CN216288361U
Application number: CN202122628338.XU
Authority: CN
Inventors: 李文好; 蒋杏兵
Original assignee: Haiying Enterprise Group Co Ltd
Current assignee: Haiying Enterprise Group Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-12
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to a polarization clamp for polarizing tubular piezoelectric ceramics, which comprises a polytetrafluoroethylene bottom plate, a polytetrafluoroethylene base, electrode copper sheets, a pure copper plate, a heat-resistant lead, an external power supply and circuit protection device, transformer oil, a transformer oil tank and transformer oil scale marks, wherein the main body of the polytetrafluoroethylene bottom plate is a square bottom plate, and four cylindrical polytetrafluoroethylene bases are additionally arranged at the bottom of the square bottom plate. Compared with the prior art, the utility model has the advantages that: the polarization process of small-size piezoceramics pipe has been improved, not only can avoid appearing the mar when the silver layer on the protection pipe wall when the polarization, twenty pipes can also polarize once, have improved polarization efficiency greatly, want to change also very easily to the polarity of the interior outer wall of pipe, only need through change anchor clamps and the positive negative pole connecting wire of power, just so can change the electric field direction that adds on the pottery, and then change the polarity of interior outer pipe wall.

Description

Polarization clamp for polarizing circular tube-shaped piezoelectric ceramics

Technical Field

The utility model relates to a circular tube-shaped piezoelectric ceramic polarizing device, in particular to a polarizing clamp for polarizing circular tube-shaped piezoelectric ceramic.

Background

The electric ceramic is an information functional ceramic material capable of converting electric energy and mechanical energy mutually, has good mechanical property and stable piezoelectric property, is used as an important force, heat, electricity and photosensitive material, has been widely applied to the aspects of sensors, ultrasonic transducers, piezoelectric speakers, other electronic components and the like, and has a small part of special-shaped parts except most of ceramic parts with regular shapes. In order to polarize these shaped parts, it is sometimes necessary to customize some special polarization fixtures.

Most present polarization anchor clamps all are the piezoceramics that are used for polarizing shapes such as disk, ring, square piece, and simple structure and suitability are strong, and when meetting certain dysmorphism piece, ordinary polarization anchor clamps often can't be suitable for, need go to customize some special anchor clamps according to the shape of heterosexual piece. For example, like a small piezoelectric circular tube, a silver layer on the surface needs to be beautiful, but is easily scratched in the polarization process, and meanwhile, the voltage applied in the polarization process is high and cannot be performed in the air, and the silver layer and the clamp need to be placed in transformer oil together, so that the taking and placing are troublesome.

The piezoelectric ceramic filled in the circular tube is formed by coating silver on the inner wall and the outer wall of the tube, the inner wall and the outer wall of the tube are respectively provided with one pole, the piezoelectric ceramic is different from common flaky and blocky piezoelectric ceramics, the flaky and blocky ceramics are usually formed by coating silver on two sides, two poles can clamp two ends by using a clamp during polarization, the tubular ceramic cannot be clamped by using a common clamp, the quantity of primary polarization of the common clamp is small, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the problems of difficult polarization and low polarization efficiency of the tubular piezoelectric ceramic in the prior art, thereby providing a polarization clamp for polarizing the tubular piezoelectric ceramic.

In order to solve the technical problem, the polarization clamp for polarizing the tubular piezoelectric ceramics comprises a polytetrafluoroethylene bottom plate, a polytetrafluoroethylene base, electrode copper sheets, a pure copper plate, a heat-resistant lead, an external power supply and circuit protection device, transformer oil, a transformer oil tank and transformer oil scale marks, wherein the main body of the polytetrafluoroethylene bottom plate is a square bottom plate, four cylindrical polytetrafluoroethylene bases are additionally arranged at the bottom of the square bottom plate, and a plurality of parallel electrode copper sheets are arranged on the polytetrafluoroethylene bottom plate; a plurality of pure copper plates with the same specification are arranged on the polytetrafluoroethylene bottom plate at equal intervals, and the pure copper plates are connected with the heat-resistant conducting wires on the polytetrafluoroethylene bottom plate and are in contact with the electrode copper sheets; an external power supply and a circuit protection device are additionally arranged on the parallel circuit of the electrode copper sheets, and the external power supply and circuit protection device, the electrode copper sheets and the pure copper sheets are connected through a heat-resistant lead to form a complete loop.

Compared with the prior art, the utility model has the advantages that: the polarization process of small-size piezoceramics pipe has been improved, not only can avoid appearing the mar when the silver layer on the protection pipe wall when the polarization, twenty pipes can also polarize once, polarization efficiency has been improved greatly, because each copper sheet on the anchor clamps all is parallelly connected, if one has appeared damaging, other also can continue to use, it is also very easy to want to change to the polarity of the interior outer wall of pipe, only need be through changing anchor clamps and the positive negative pole connecting wire of power, just so can change the electric field direction that adds on the pottery, and then change the polarity of interior outer pipe wall.

Furthermore, the electrode copper sheet is made of tin phosphor bronze and is fixed on the polytetrafluoroethylene bottom plate by additionally arranging a corresponding copper nut.

Furthermore, the pure copper plate is fixed on the polytetrafluoroethylene bottom plate by using copper nuts with adaptive specifications, and the copper nuts penetrate through the heat-resistant conducting wires connected with the upper part of the polytetrafluoroethylene bottom plate.

Furthermore, the polytetrafluoroethylene bottom plate, the polytetrafluoroethylene base, the electrode copper sheet, the pure copper plate, the heat-resistant lead, the external power supply and the circuit protection device are all placed in a transformer oil tank, and transformer oil with a certain liquid level height is filled in the transformer oil tank.

Furthermore, transformer oil scale marks are carved on the transformer oil groove.

Drawings

In order that the present disclosure may be more readily and clearly understood, reference will now be made in detail to the present disclosure, examples of which are illustrated in the accompanying drawings.

Fig. 1 is a schematic structural view of a polarization jig for polarizing a circular tube-shaped piezoelectric ceramic.

Fig. 2 is a polarization circuit diagram of a polarization jig for polarizing a circular tube-shaped piezoelectric ceramic.

As shown in the figure: 1. the transformer oil-cooled transformer comprises a polytetrafluoroethylene bottom plate, 2, a polytetrafluoroethylene base, 3, electrode copper sheets, 4, a pure copper plate, 5, a heat-resistant lead, 6, an external power supply and circuit protection device, 7, transformer oil, 8, a transformer oil groove, 9, transformer oil scale marks, 10 and a power supply and power supply protection device.

Detailed Description

As shown in fig. 1, the present embodiment provides a polarization fixture for polarizing a circular tube-shaped piezoelectric ceramic, including a polytetrafluoroethylene base plate 1, a polytetrafluoroethylene base 2, electrode copper sheets 3, a pure copper plate 4, a heat-resistant lead 5, an external power supply and circuit protection device 6, transformer oil 7, a transformer oil tank 8, and transformer oil scale marks 9, where a main body of the tetrafluoroethylene base plate 1 is a square block-shaped base plate, the bottom of the tetrafluoroethylene base plate is additionally provided with four cylindrical polytetrafluoroethylene base plates 2, and the tetrafluoroethylene base plate 1 is provided with a plurality of parallel electrode copper sheets 3; a plurality of pure copper plates 4 with the same specification are arranged on the polytetrafluoroethylene bottom plate 1 at equal intervals, and the pure copper plates 4 are connected with heat-resistant wires 5 on the polytetrafluoroethylene bottom plate 1 and are in contact with the electrode copper sheets 3; an external power supply and circuit protection device 6 is additionally arranged on a parallel circuit of the electrode copper sheets 3, and the external power supply and circuit protection device 6, the electrode copper sheets 3 and the pure copper sheets 4 are connected through a heat-resistant lead 5 to form a complete loop. The polytetrafluoroethylene material can bear high temperature during polarization and has good insulating property.

Furthermore, as shown in fig. 1, the electrode copper sheet 3 is made of tin-phosphor bronze with a thickness of 0.5mm and a soft texture, and is fixed on the polytetrafluoroethylene base plate 1 by additionally arranging a corresponding copper nut, so that the silver layer can be effectively protected from being scratched.

Further, as shown in fig. 1, the pure copper plate 4 is fixed on the teflon bottom plate 1 by using copper nuts with adaptive specifications, and the copper nuts penetrate through the heat-resistant conducting wires 5 connected to the upper part of the teflon bottom plate 1. The pure copper plate 4 is made of pure copper material with the thickness of 2mm and good conductivity.

Further, as shown in fig. 1 and 2, the polytetrafluoroethylene base plate 1, the polytetrafluoroethylene base 2, the electrode copper sheets 3, the pure copper sheets 4, the heat-resistant wires 5, the external power supply and the circuit protection device 6 are all placed in a transformer oil tank 8, and transformer oil 7 with a certain liquid level height is filled in the transformer oil tank 8. When polarization is carried out, direct current is supplied, the polarity of the inner wall and the outer wall of the circular tube is changed by changing the current direction, if the direction of the external electric field is from the outer wall to the inner wall, the outer wall is a positive electrode, and the inner wall is a negative electrode; if the direction of the external electric field is from the inner wall to the outer wall, the outer wall is a cathode, and the inner wall is an anode. In the polarization circuit, each circular tube is in a structure connected in parallel, if a path is damaged or the contact is poor, the polarization of other circular tubes cannot be influenced, and the polarization process of each circular tube is independent. If a short circuit occurs in one path, the fuse resistor in the circuit protection device can prevent the current in the circuit from being overlarge, and safety accidents are avoided.

Be carved with transformer oil scale mark 9 on the transformer oil groove 8, make things convenient for the convenient oil level in the adjustment oil groove of staff.

The device comprises the following use steps:

the method comprises the following steps: connecting the clamp to the circuit and then placing in transformer oil;

step two: heating the transformer oil, keeping the temperature when the transformer oil is heated to 140 ℃ of 120-;

step three: and starting to slowly apply voltage to the piezoelectric circular tube, increasing to a target voltage value, and keeping pressurizing for 5-10 min. The applied voltage is between 2000V and 3000V per millimeter according to the material characteristics and the tube wall thickness, and the voltage is slowly reduced after the pressure maintaining is finished;

step four: and taking out the piezoelectric circular tube by using tweezers for discharging, cooling to room temperature, and then cleaning in a transformer oil cleaning agent, thereby completing the whole polarization process.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the utility model may be made without departing from the spirit or scope of the utility model.

Claims

1. The utility model provides a polarize anchor clamps for polarize pipe form piezoceramics, includes polytetrafluoroethylene bottom plate (1), polytetrafluoroethylene base (2), electrode copper sheet (3), pure copper (4), heat-resisting wire (5), plus power and circuit protection device (6), transformer oil (7), transformer oil groove (8), transformer oil scale mark (9), its characterized in that: the tetrafluoroethylene bottom plate (1) is characterized in that the main body of the tetrafluoroethylene bottom plate (1) is a square block-shaped bottom plate, four cylindrical polytetrafluoroethylene bases (2) are additionally arranged at the bottom of the tetrafluoroethylene bottom plate, and a plurality of parallel electrode copper sheets (3) are arranged on the tetrafluoroethylene bottom plate (1); a plurality of pure copper plates (4) with the same specification are arranged on the polytetrafluoroethylene bottom plate (1) at equal intervals, and the pure copper plates (4) are connected with heat-resistant wires (5) on the polytetrafluoroethylene bottom plate (1) and are in contact with the electrode copper sheets (3); an external power supply and a circuit protection device (6) are additionally arranged on the parallel circuit of the electrode copper sheets (3).

2. The polarization jig for polarizing a circular tube-shaped piezoelectric ceramic according to claim 1, wherein: the electrode copper sheets (3) are made of tin-phosphor bronze and are fixed on the polytetrafluoroethylene base plate (1) by additionally arranging corresponding copper nuts.

3. The polarization jig for polarizing a circular tube-shaped piezoelectric ceramic according to claim 1, wherein: the pure copper plate (4) is fixed on the polytetrafluoroethylene bottom plate (1) by using a copper nut with an adaptive specification, and the copper nut penetrates through a heat-resistant wire (5) connected with the upper part of the polytetrafluoroethylene bottom plate (1).

4. The polarization jig for polarizing a circular tube-shaped piezoelectric ceramic according to claim 1, wherein: the polytetrafluoroethylene bottom plate (1), the polytetrafluoroethylene base (2), the electrode copper sheet (3), the pure copper plate (4), the heat-resisting lead (5), the external power supply and the circuit protection device (6) are all placed in a transformer oil tank (8), and transformer oil (7) with a certain liquid level height is filled in the transformer oil tank (8).

5. The polarization jig for polarizing a circular tube-shaped piezoelectric ceramic according to claim 4, wherein: transformer oil graduation lines (9) are carved on the transformer oil groove (8).

6. The polarization fixture for polarizing the circular tube-shaped piezoelectric ceramics according to claim 1, wherein the external power supply and circuit protection device (6), the electrode copper sheet (3) and the pure copper sheet (4) are connected by the heat-resistant lead (5) to form a complete loop.