Electric field orientation device and method for improving performance of piezoelectric material

Abstract

The invention provides an electric field orientation device and method for improving the performance of a piezoelectric material, and relates to the technical field of electric field orientation devices.The electric field orientation device comprises a base, a mounting opening is formed in the base, a conveying belt is mounted on the inner side of the mounting opening, a lower pole plate is mounted on the base, an upper pole plate is arranged above the lower pole plate, and the upper pole plate is connected with the base through a vertical assembly; a power supply assembly is installed on one side of the base, the output end of the power supply assembly is connected with the lower polar plate and the upper polar plate, two sets of symmetrical linear modules are installed on the base, clamping driving assemblies are installed on the linear modules, clamping plates are installed on the clamping driving assemblies, an outer shell is arranged above the base, and a fan is installed on the inner side of the outer shell. Through cooperation of the linear module, the clamping driving assembly and the clamping plate, the position of the piezoelectric material can be transferred under manual electronic control, workers only need to master the device after starting and ending in the whole process, and the safety of the workers during operation is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric field orientation devices, and in particular to an electric field orientation device and method for improving the performance of piezoelectric materials. Background Art

[0002] Piezoelectric materials are a type of material that can generate electric charge under mechanical stress and can also generate mechanical deformation under electric field. This bidirectional conversion property makes piezoelectric materials very useful in a variety of applications, including sensors, actuators, energy harvesters, etc. As demand grows, the performance requirements for piezoelectric materials are getting higher and higher. Improving the performance of piezoelectric materials can enhance their functionality in applications such as sensors, actuators, and energy harvesters. For example, a higher piezoelectric coefficient means that more charge can be generated under the same mechanical stress, thereby improving the sensitivity of the sensor.

[0003] Electric field orientation directly acts on the electric dipoles inside the piezoelectric material, aligning them along the direction of the electric field, thereby enhancing the macroscopic piezoelectric effect of the material. This direct mechanism of action makes electric field orientation an efficient method. However, in the prior art, the electric field orientation device usually has electrodes on both sides of the piezoelectric material, and connects the electrodes to the corresponding power supply to start working. The overall structure is relatively simple, and the corresponding operation is mostly performed manually, which is less safe. Therefore, the present invention proposes an electric field orientation device and method for improving the performance of piezoelectric materials to solve the problems existing in the prior art. Summary of the invention

[0004] In response to the above problems, the purpose of the present invention is to propose an electric field orientation device and method for improving the performance of piezoelectric materials. This electric field orientation device and method for improving the performance of piezoelectric materials have the advantages of reducing manual labor, greatly improving the safety of workers, and can solve the problems in the prior art.

[0005] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: an electric field orientation device for improving the performance of piezoelectric materials, comprising a base, a mounting port is provided on the base, and a conveyor belt is installed on the inner side of the mounting port, a lower electrode plate is installed on the base, an upper electrode plate is provided above the lower electrode plate, and the upper electrode plate is connected to the base through a vertical component, a power supply component is installed on one side of the base, and the output end of the power supply component is connected to the lower electrode plate and the upper electrode plate, two groups of symmetrically arranged linear modules are installed on the base, a clamping drive component is installed on the linear module, and a clamping plate is installed on the clamping drive component, an outer shell is provided above the base, and a fan is installed on the inner side of the outer shell.

[0006] A further improvement is that the vertical component includes a hollow mounting shell, a first screw rod is installed on the inner side of the hollow mounting shell, and the first screw rod is driven by a first motor, a mounting frame is provided on one side of the hollow mounting shell, and the mounting frame is connected to the upper pole plate, a portion of the mounting frame extends into the hollow mounting shell and is connected to the first screw rod through a thread.

[0007] A further improvement is that a fixing groove is provided on the base, a fixing frame is provided inside the fixing groove, and the inner side of the fixing frame is connected to the lower electrode plate, and a through opening is provided on the base below the fixing groove.

[0008] A further improvement is that an opening is provided at the upper end of the outer shell, and a dustproof net is installed on the inner side of the opening, the position of the dustproof net corresponds to the fan, a connecting port is provided at the upper end of the linear module, a part of the outer shell extends into the connecting port and is connected to the linear module.

[0009] A further improvement is that the clamping drive assembly includes an extension plate, the extension plate is connected to the moving end of the linear module through a slider, an electric push rod is installed on the extension plate, and the telescopic end of the electric push rod is connected to the clamping plate.

[0010] A further improvement is that the bottom of the linear module is connected to the base through a support block, and one end of the linear module is connected to the hollow mounting shell, and a cavity is provided between the bottom of the linear module and the base.

[0011] A further improvement is that the power supply assembly includes an external protection cabinet, a controller is installed on the external protection cabinet, a high-voltage inverter is installed inside the external protection cabinet, and the high-voltage inverter is electrically connected to an external voltage source.

[0012] A further improvement is that conveyor rollers are installed on the inner side of the conveyor belt, and the conveyor rollers are provided in several groups, and the upper end surface of the conveyor belt is in a flush state with the upper end surface of the base.

[0013] A method for using an electric field orientation device for improving the performance of a piezoelectric material comprises the following steps:

[0014] Step 1: Place the piezoelectric material on the conveyor belt, start the clamping drive assembly, and make the clamping plate clamp the piezoelectric material;

[0015] Step 2: Start the linear module to transfer the piezoelectric material to the lower electrode plate, and then move the upper electrode plate downward until it contacts the piezoelectric material;

[0016] Step 3: Start the power supply component to polarize the piezoelectric material under the action of the electric field;

[0017] Step 4: After processing, restore the upper electrode plate to its original position, move the piezoelectric material to the bottom of the fan, start the fan, and cool it down.

[0018] The beneficial effects of the present invention are as follows: the electric field orientation device and method for improving the performance of piezoelectric materials can transfer the position of the piezoelectric material under manual electronic control through the cooperation of the set linear module, the clamping drive assembly and the clamping plate. The overall process only requires the staff to take action at the beginning and end, which greatly improves the safety of the staff during operation. At the same time, the electrode is designed to clamp the piezoelectric material to ensure that the piezoelectric material will not shake or deviate during the polarization process. Correspondingly, after the polarization is completed, the fan is set to cool down the material, which ensures the performance of the piezoelectric material while accelerating the cooling efficiency of the piezoelectric material, facilitating subsequent processing. Further, the conveyor belt is set to reduce the friction contact time between the piezoelectric material and the base to avoid affecting the surface of the piezoelectric material. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a front view schematic diagram of the electric field orientation device of the present invention.

[0021] Figure 2 It is a schematic top view of a base of the present invention.

[0022] Figure 3 It is a schematic top view of the electric field orientation device of the present invention.

[0023] Figure 4 It is a front view schematic diagram of the connection between the linear module and the extension plate of the present invention.

[0024] Figure 5 It is a top view schematic diagram of the installation frame of the present invention.

[0025] Among them: 1. base; 2. conveyor belt; 3. lower pole plate; 4. upper pole plate; 6. linear module; 7. clamping plate; 8. outer shell; 9. fan; 10. hollow mounting shell; 11. first screw rod; 12. first motor; 13. mounting frame; 14. fixing groove; 15. fixing frame; 16. through port; 17. dustproof net; 18. connecting port; 19. extension plate; 20. electric push rod; 21. support block; 22. cavity; 23. outer protection cabinet; 24. controller; 25. high-voltage inverter; 26. conveyor roller; 27. piezoelectric material; 28. limit port. DETAILED DESCRIPTION

[0026] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0027] according to Figure 1-Figure 5 As shown, this embodiment provides an electric field orientation device for improving the performance of piezoelectric materials, including a base 1, a mounting port is provided on the base 1, and a conveyor belt 2 is installed on the inner side of the mounting port, and a conveyor roller 26 is installed on the inner side of the conveyor belt 2. The conveyor roller 26 is provided in several groups. In this embodiment, five groups of conveyor rollers 26 are evenly provided. The upper end surface of the conveyor belt 2 is flush with the upper end surface of the base 1. In this device, the conveyor belt 2 itself is a mesh design. Because this device has the effect of conveying the piezoelectric material 27, in order to reduce the contact friction between the piezoelectric material 27 and the base 1 during the movement, the conveyor belt 2 is set, which can adaptively move with the movement of the piezoelectric material 27, thereby reducing the influence of external components on the surface of the piezoelectric material 27.

[0028] A lower electrode plate 3 is mounted on the base 1, a fixing groove 14 is provided on the base 1, the upper end of the fixing groove 14 is communicated with the outside, a fixing frame 15 is provided on the inner side of the fixing groove 14, and the inner side of the fixing frame 15 is connected to the lower electrode plate 3, the fixing frame 15 has insulating properties, and the thickness of the fixing frame 15 is consistent with the thickness of the lower electrode plate 3, and a through opening 16 is provided on the base 1 below the fixing groove 14, and the function of the through opening 16 is to facilitate the connection of cables.

[0029] An upper plate 4 is provided above the lower plate 3, and the upper plate 4 is connected to the base 1 through a vertical component, such as Figure 1 As shown, the vertical component includes a hollow mounting shell 10, a first screw rod 11 is installed on the inner side of the hollow mounting shell 10, and the first screw rod 11 is driven by a first motor 12, a mounting frame 13 is provided on one side of the hollow mounting shell 10, and the mounting frame 13 is connected to the upper electrode plate 4, a portion of the mounting frame 13 extends into the hollow mounting shell 10, and is connected to the first screw rod 11 through a thread, and a limit rod (not shown) is also installed in the hollow mounting shell 10, which passes through the mounting frame 13, so that when working, the first motor 12 drives the first screw rod 12 to rotate, and under the action of the threaded connection and the limiting of the limit rod, the mounting frame 13 is driven to move up and down, so that after the piezoelectric material 27 enters a predetermined position, it is clamped between the two electrodes (upper electrode plate 4 and lower electrode plate 3) by the cooperation of the upper electrode plate 4 and the lower electrode plate 3, and accordingly, a limit opening 28 is also provided on the hollow mounting shell 10, and the limit opening 28 determines the movable range of the upper electrode plate 4.

[0030] A power supply assembly is installed on one side of the base 1, and the output end of the power supply assembly is connected to the lower electrode plate 3 and the upper electrode plate 4. The power supply assembly includes an outer protection cabinet 23, and a controller 24 is installed on the outer protection cabinet 23. A high-voltage inverter 25 is installed on the inner side of the outer protection cabinet 23. The high-voltage inverter 25 is electrically connected to an external voltage source, and the external voltage source is an adjustable DC voltage source. The controller 24 is the control terminal of all electronic components of the device. When the piezoelectric material 27 is clamped by two electrodes, the external voltage source is started, and then the input voltage is increased by the high-voltage inverter 25, and then output. Therefore, the power supply can be used to apply voltage between the electrodes, that is, an electric field is applied on both sides of the piezoelectric material 27. Under the action of the electric field, the electric dipoles inside the piezoelectric material will be arranged along the direction of the electric field. This orderly arrangement can increase the macroscopic electric polarization of the material, thereby improving the piezoelectric system, and then improving the performance of the piezoelectric material 27.

[0031] Two groups of symmetrically arranged linear modules 6 are installed on the base 1. The linear modules 6 are arranged relatively to each other. The linear modules 6 are a technology well known to those skilled in the art. They mainly use motors and screws to convert rotational motion into linear motion. Therefore, they are not described in detail in this embodiment. A clamping drive component is installed on the linear module 6, and a clamping plate 7 is installed on the clamping drive component. When working, the clamping drive component can be driven to move by the linear module 6. Specifically, the clamping drive component includes an extension plate 19. The extension plate 19 is connected to the moving end of the linear module 6 through a slider (when the linear module 6 is working, it can drive the slider to move linearly, and then drive the extension plate 19 to move). An electric push rod 20 is installed on the extension plate 19. The electric push rod 20 The telescopic end is connected to the clamping plate 7. Specifically, the bottom of the linear module 6 is connected to the base 1 through the support block 21, and one end of the linear module 6 is connected to the hollow mounting shell 10. Therefore, a cavity 22 is provided between the bottom of the linear module 6 and the base 1, and the function of the cavity 22 is to facilitate the movement of the electric push rod 20. When working, the piezoelectric material 27 is placed on the conveyor belt 2, and then the clamping plate 7 is adjusted to a suitable position through the linear module 6, and then the electric push rods 20 on both sides are started at the same time. The electric push rods 20 push the clamping plate 7 to contact the piezoelectric material 27 and clamp it. Then the linear module 6 transfers the piezoelectric material 27 to the top of the lower electrode plate 3 to release the clamping state. After the processing is completed, it is clamped again and the position is transferred.

[0032] An outer shell 8 is provided above the base 1, and a fan 9 is installed on the inner side of the outer shell 8. At the same time, an opening is provided at the upper end of the outer shell 8, and a dust screen 17 is installed on the inner side of the opening. The position of the dust screen 17 corresponds to the fan 9. A connecting port 18 is provided at the upper end of the linear module 6. Part of the outer shell 8 extends into the connecting port 18 and is connected to the linear module 6. The setting of the connecting port 18 is to improve the stability of the connection between the outer shell 8 and the linear module 6, and it is not easy to deviate.

[0033] A method for using an electric field orientation device for improving the performance of a piezoelectric material comprises the following steps:

[0034] Step 1: The staff places the piezoelectric material 27 on the conveyor belt 2 and starts the clamping drive assembly so that the clamping plate 7 clamps the piezoelectric material 27;

[0035] Step 2: Start the linear module 6, transfer the piezoelectric material 27 to the lower electrode plate 3, and make the clamping plate 7 in a disengaged state, and then move the upper electrode plate 4 downward until it contacts the piezoelectric material 27;

[0036] Step 3: Start the power supply component and polarize the piezoelectric material 27 under the action of the electric field. The processing time is adjusted according to actual needs.

[0037] Step 4: After the treatment, restore the upper electrode plate 4 to its original position, and then use the clamping drive assembly and the clamping plate 7 to clamp the piezoelectric material 27, and then move the piezoelectric material 27 to the bottom of the fan 9, start the fan 9, and cool it down.

[0038] In this embodiment, the piezoelectric material 27 is a block solid piezoelectric material, and the method of using the fan 9 for cooling is mainly to ensure the performance of the material.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An electric field orientation device for improving the performance of piezoelectric materials, characterized in that: The invention comprises a base (1), wherein the base (1) is provided with a mounting opening, and a conveyor belt (2) is mounted on the inner side of the mounting opening; a lower plate (3) is mounted on the base (1), an upper plate (4) is mounted above the lower plate (3), and the upper plate (4) is connected to the base (1) via a vertical component; a power supply component is mounted on one side of the base (1), and the output end of the power supply component is connected to the lower plate (3) and the upper plate (4); two groups of symmetrically arranged linear modules (6) are mounted on the base (1), a clamping drive component is mounted on the linear module (6), and a clamping plate (7) is mounted on the clamping drive component; an outer shell (8) is mounted above the base (1), and a fan (9) is mounted on the inner side of the outer shell (8).

2. The electric field orientation device for improving the performance of piezoelectric materials according to claim 1, characterized in that: The vertical assembly comprises a hollow mounting shell (10), a first screw rod (11) is mounted on the inner side of the hollow mounting shell (10), and the first screw rod (11) is driven by a first motor (12), a mounting frame (13) is provided on one side of the hollow mounting shell (10), and the mounting frame (13) is connected to the upper electrode plate (4), and a portion of the mounting frame (13) extends into the hollow mounting shell (10) and is connected to the first screw rod (11) via a thread.

3. The electric field orientation device for improving the performance of piezoelectric materials according to claim 1, characterized in that: The base (1) is provided with a fixing groove (14), the inner side of the fixing groove (14) is provided with a fixing frame (15), and the inner side of the fixing frame (15) is connected to the lower electrode plate (3), and a through opening (16) is provided on the base (1) below the fixing groove (14).

4. The electric field orientation device for improving the performance of piezoelectric materials according to claim 1, characterized in that: An opening is provided at the upper end of the outer shell (8), and a dustproof net (17) is installed on the inner side of the opening. The position of the dustproof net (17) corresponds to the fan (9). A connecting port (18) is provided at the upper end of the linear module (6). Part of the outer shell (8) extends into the connecting port (18) and is connected to the linear module (6).

5. The electric field orientation device for improving the performance of piezoelectric materials according to claim 1, characterized in that: The clamping drive assembly comprises an extension plate (19), the extension plate (19) is connected to the moving end of the linear module (6) via a slider, an electric push rod (20) is installed on the extension plate (19), and the telescopic end of the electric push rod (20) is connected to the clamping plate (7).

6. The electric field orientation device for improving the performance of piezoelectric materials according to claim 1, characterized in that: The bottom of the linear module (6) is connected to the base (1) via a support block (21), and one end of the linear module (6) is connected to a hollow mounting shell (10), and a cavity (22) is provided between the bottom of the linear module (6) and the base (1).

7. The electric field orientation device for improving the performance of piezoelectric materials according to claim 1, characterized in that: The power supply assembly comprises an external protection cabinet (23), a controller (24) is installed on the external protection cabinet (23), a high-voltage inverter (25) is installed inside the external protection cabinet (23), and the high-voltage inverter (25) is electrically connected to an external voltage source.

8. The electric field orientation device for improving the performance of piezoelectric materials according to claim 1, characterized in that: A conveying roller (26) is installed on the inner side of the conveying belt (2), and a plurality of groups of the conveying rollers (26) are provided. The upper end surface of the conveying belt (2) is flush with the upper end surface of the base (1).

9. A method for using the electric field orientation device for improving the performance of piezoelectric materials as claimed in claim 1, characterized in that: The following steps are involved: Step 1: placing the piezoelectric material (27) on the conveyor belt (2), and starting the clamping drive assembly to enable the clamping plate (7) to clamp the piezoelectric material (27); Step 2: Start the linear module (6) to transfer the piezoelectric material (27) to the lower electrode plate (3), and then move the upper electrode plate (4) downward until it contacts the piezoelectric material (27); Step 3: Start the power supply component to polarize the piezoelectric material (27) under the action of the electric field; Step 4: After the treatment, the upper electrode plate (4) is restored to its original position, and the piezoelectric material (27) is moved to the bottom of the fan (9), and the fan (9) is started to cool down.

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