A plurality of side electrode printing structures of a multilayer piezoelectric ceramic

Abstract

The utility model belongs to piezoelectric ceramic manufacturing technical field relates to a plurality of side electrode printing structure of multilayer piezoelectric ceramic, including ceramic sheet, and the printing silica gel head and printing platform that set respectively on the upper and lower sides of ceramic sheet, the printing platform has the negative pressure adsorption platform that extends upward for the fixed cooperation of the bottom surface of ceramic sheet, the printing silica gel head can be set above ceramic sheet and move up and down, and printing silica gel head can carry out different depth's multiple printing superposition to ceramic sheet under the action of its driving part. The utility model neither pollutes the bottom surface of ceramic sheet, and can guarantee that the side electrode is wrapped tightly, the effect that right angle edge is no leakage ceramic, has simple structure, stable and reliable, is convenient and effective, and improves printing quality and so on advantages.

Description

Technical Field

[0001] This utility model belongs to the field of piezoelectric ceramic manufacturing technology, specifically relating to a multi-side electrode printing structure for multilayer piezoelectric ceramics. Background Technology

[0002] In the fabrication of multilayer piezoelectric ceramics, side electrode printing is one of the most critical steps. Currently common side electrode printing methods have several problems, listed below:

[0003] 1. Traditional screw-tightening method of stacking brushes: Because the pressure is difficult to distribute evenly when tightening screws, the ceramic plates are prone to cracking under uneven stress.

[0004] 2. Roller printing method: First, the side electric strips are printed on the roller, and then the ceramic pieces are pushed in one by one through the limiting groove for side electric printing. This method is costly and difficult to operate for ultra-thin multilayer piezoelectric ceramics, making it difficult to guarantee printing quality. Utility Model Content

[0005] The purpose of this invention is to address the defects and shortcomings of existing technologies by designing a multi-layer piezoelectric ceramic multi-side electrode printing structure that is simple in structure, stable and reliable, convenient and effective, and improves printing quality.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a multi-side electrode printing structure for a multilayer piezoelectric ceramic, including a ceramic sheet, and printing silicone heads and printing platforms respectively disposed on the upper and lower sides of the ceramic sheet. The printing platform has a negative pressure adsorption stage extending upward for fixing and engaging the bottom surface of the ceramic sheet. The printing silicone heads are disposed above the ceramic sheet and can move up and down. Under the action of its driving component, the printing silicone heads can perform multiple printing and stacking of different depths on the ceramic sheet.

[0007] Preferably, the ceramic sheet has a circular structure and a through hole in the middle.

[0008] Preferably, the negative pressure adsorption platform is a cylindrical design that matches the ceramic sheet, and the top surface of the negative pressure adsorption platform has a positioning protrusion that matches the through hole, and a plurality of negative pressure adsorption holes evenly spaced around the outer periphery of the positioning protrusion.

[0009] Preferably, the diameter of the negative pressure adsorption stage is the same as the diameter of the ceramic sheet, and the height of the positioning protrusion is the same as the thickness of the ceramic sheet.

[0010] Preferably, when the printing silicone head moves downward, it can deform to wrap around the upper surface and sides of the ceramic sheet.

[0011] Preferably, when the printing silicone head moves downward to print, it has three different printing heights, and the three different printing heights are printed and superimposed sequentially.

[0012] Preferably, the printed silicone head is coated with a plurality of side electrodes that correspond to and cooperate with the ceramic sheet, and the size of the side electrodes is larger than the side size of the ceramic sheet.

[0013] Preferably, the side electrode can be partially printed on the upper surface of the ceramic sheet and partially printed on the side surface of the ceramic sheet under the action of the printing silicone head.

[0014] After adopting the above technical solution, the multi-side electrode printing structure of multilayer piezoelectric ceramic provided by this utility model has the following beneficial effects:

[0015] This invention, through the design of the printing silicone head and printing platform, ensures that the bottom of the piezoelectric ceramic sheet is not contaminated during the printing process, effectively preventing short circuits after the piezoelectric ceramic adheres to the substrate during use. Simultaneously, the three-stage printing of side electrodes at different heights achieves a tight wrapping of the side electrodes, ensuring no ceramic leakage at right angles, and preventing performance degradation caused by incomplete layer bonding due to incomplete side coverage. Therefore, this invention offers advantages such as simple structure, stability and reliability, convenience and effectiveness, and improved printing quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the ceramic sheet in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the printing silicone head in this utility model;

[0018] Figure 3 This is a schematic diagram of the printing platform in this utility model;

[0019] Figure 4 This is a schematic diagram of the planar state of the side electrode and the ceramic sheet in this utility model;

[0020] Figure 5 This is a schematic diagram of the installation structure of the ceramic sheet and the printing platform in this utility model.

[0021] The components include: 1. Ceramic sheet; 2. Printing silicone head; 3. Printing platform; 4. Negative pressure adsorption stage; 5. Through hole; 6. Positioning protrusion; 7. Negative pressure adsorption hole; and 8. Side electrode. Detailed Implementation

[0022] The present invention will now be described in further clear and complete detail with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0025] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0026] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0027] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0028] This utility model discloses a multi-side electrode printing structure for a multilayer piezoelectric ceramic, such as... Figure 1-5 As shown, it includes a ceramic sheet 1, and printing silicone heads 2 and printing platforms 3 respectively disposed on the upper and lower sides of the ceramic sheet 1.

[0029] The ceramic sheet 1 has a ring-shaped structure with a through hole 5 in the middle, and multiple side electrode printing positions are distributed at intervals along its circumference. The printing platform 3 has a negative pressure adsorption stage 4 that extends upward to fix the bottom surface of the ceramic sheet 1. The negative pressure adsorption stage 4 is cylindrical in shape to fit the ceramic sheet 1. Specifically, the diameter of the negative pressure adsorption stage 4 is the same as the diameter of the ceramic sheet 1, and the height of the negative pressure adsorption stage 4 is preferably greater than the thickness of the ceramic sheet 1. Furthermore, the top surface of the negative pressure adsorption stage 4 has a positioning protrusion 6 that fits with the through hole 5, and multiple negative pressure adsorption holes 7 that are evenly distributed around the outer periphery of the positioning protrusion 6. The height of the positioning protrusion 6 is the same as the thickness of the ceramic sheet 1, that is, after the ceramic sheet 1 is installed in place, the surface of the positioning protrusion 6 is flush with the surface of the ceramic sheet 1.

[0030] The printing silicone head 2 is movably positioned above the ceramic sheet 1, and under the action of its driving component, it can perform multiple printing layers at different depths on the ceramic sheet 1. Specifically, when the printing silicone head 2 moves downward, it can deform to wrap around the upper surface and side surface of the ceramic sheet 1. At the same time, when the printing silicone head 2 moves downward to print, it has three different printing heights, and the three different printing heights are printed and superimposed sequentially. Furthermore, the printing silicone head 2 is coated with multiple side electrodes 8 that correspond to and cooperate with the ceramic sheet 1, and the size of the side electrodes 8 is larger than the side surface size of the ceramic sheet 1. That is, the side electrodes 8 can be partially printed on the upper surface of the ceramic sheet 1 and partially printed on the side surface of the ceramic sheet 1 under the action of the printing silicone head 2.

[0031] In operation, the multi-side electrode printing structure of the multi-layer piezoelectric ceramic of this utility model is as follows: the ceramic sheet 1 is placed on the negative pressure adsorption stage 4, and the negative pressure is turned on to fix the ceramic sheet 1. The printing silicone head 2 is used to print the side electrodes 7, and then the side electrodes 7 are printed on the ceramic sheet 1. After three side electrode printings at different depths, the side electrodes are tightly wrapped and there is no ceramic leakage at the right angle.

[0032] In summary, the multi-side electrode printing structure of multilayer piezoelectric ceramics provided by this utility model not only avoids contaminating the bottom surface of the ceramic sheet, but also ensures that the side electrodes are tightly wrapped and that there is no ceramic leakage at the right angle edges. It has the advantages of simple structure, stability and reliability, convenience and effectiveness, and improved printing quality. It has great market value and is worthy of widespread promotion and application.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multilayer piezoelectric ceramic multi-side electrode printing structure, characterized in that: The device includes a ceramic sheet (1), and printing silicone heads (2) and printing platforms (3) respectively disposed on the upper and lower sides of the ceramic sheet (1). The printing platform (3) has a negative pressure adsorption stage (4) extending upward for fixing the bottom surface of the ceramic sheet (1). The printing silicone heads (2) are disposed above the ceramic sheet (1) and can move up and down. The printing silicone heads (2) can perform multiple printing layers of different depths on the ceramic sheet (1) under the action of their driving components.

2. The multi-side electrode printing structure of a multilayer piezoelectric ceramic according to claim 1, characterized in that: The ceramic sheet (1) has a circular structure and a through hole (5) in the middle.

3. The multi-side electrode printing structure of a multilayer piezoelectric ceramic according to claim 2, characterized in that: The negative pressure adsorption platform (4) is designed in a cylindrical shape to match the ceramic sheet (1), and the top surface of the negative pressure adsorption platform (4) has a positioning protrusion (6) that matches the through hole (5), and a plurality of negative pressure adsorption holes (7) evenly distributed around the positioning protrusion (6).

4. The multi-side electrode printing structure of a multilayer piezoelectric ceramic according to claim 3, characterized in that: The diameter of the negative pressure adsorption stage (4) is the same as the diameter of the ceramic sheet (1), and the height of the positioning protrusion (6) is the same as the thickness of the ceramic sheet (1).

5. The multi-side electrode printing structure of a multilayer piezoelectric ceramic according to claim 1, characterized in that: When the printed silicone head (2) moves downward, it can deform to wrap around the upper surface and sides of the ceramic sheet (1).

6. The multi-side electrode printing structure of a multilayer piezoelectric ceramic according to claim 1, characterized in that: When the printing silicone head (2) moves downward to print, it has three different printing heights, and the three different printing heights are printed and superimposed in sequence.

7. The multi-side electrode printing structure of a multilayer piezoelectric ceramic according to claim 1, characterized in that: The printed silicone head (2) is coated with a plurality of side electrodes (8) that correspond to and cooperate with the ceramic sheet (1), and the size of the side electrodes (8) is larger than the side size of the ceramic sheet (1).

8. The multi-side electrode printing structure of a multilayer piezoelectric ceramic according to claim 7, characterized in that: The side electrode (8) can be partially printed on the upper surface of the ceramic sheet (1) and partially printed on the side surface of the ceramic sheet (1) under the action of the printing silicone head (2).

Images