Capacitor printing plate

Abstract

The utility model relates to a capacitor printing plate, and belongs to the technical field of capacitors. According to the utility model, the opposite sides of any two adjacent first cutting line patterns are respectively provided with the first convex part and the first concave part, and the opposite sides of any two adjacent second cutting line patterns are respectively provided with the second convex part and the second concave part, so that the gap accumulation in the laminated structure of the printing sheet can be effectively reduced; therefore, the interlayer binding force of the laminated structure of the printing sheet is improved, the phenomena of delamination and lamination precision deterioration in the subsequent processing process are avoided, and the qualified rate of capacitor products is further ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of capacitors and relates to a capacitor printing plate. Background Art

[0002] Multilayer ceramic chip capacitors (MLCCs) are one of the most widely used and fastest-growing chip components in the world. They are mainly made by staggering and alternating the stacking of ceramic dielectric layers and metal conductive layers, and are widely used in electronic device terminals.

[0003] Currently, multilayer ceramic chip capacitors are manufactured by casting a mixed ceramic slurry onto a thin film carrier to form a uniform dielectric layer. Internal electrodes are then printed on the dielectric layer using a printer. The dielectric layer with printed internal electrodes is then laminated, pressed, cut, and sintered. In the prior art, printing presses utilize a printing plate, which typically includes a cutting line pattern distributed along the X-axis, a cutting line pattern distributed along the Y-axis, a product pattern, and margin areas between the patterns. The product pattern is used to form the internal electrodes during printing, the cutting line pattern is used to form cutting lines during printing, and the formed cutting lines assist in identifying the cutting position during cutting. The margin areas between the patterns are used to form margin areas between two adjacent cutting lines during printing. During actual use, after the inner electrode is printed on the dielectric layer and the dielectric layers are stacked, gaps will appear in the edge areas of the two adjacent dielectric layers with the inner electrodes printed on them. There is a lack of nickel paste bonding between the upper and lower dielectric layers in the gaps. After stacking, the gaps accumulate between the dielectric layers, resulting in poor adhesion at the edges, poor bonding between the layers, and easy delamination, which in turn leads to deterioration of product performance. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a capacitor printing plate.

[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0006] A capacitor printed plate includes a product area, a cutting line area, and a fixed area, wherein the cutting line area and the fixed area are arranged around the product area, a plurality of product patterns are arranged in the product area, and a fixed block pattern is arranged in the fixed area. The cutting line area includes a plurality of first cutting line patterns and a plurality of second cutting line patterns, wherein the plurality of first cutting line patterns are arranged along the Y-axis direction of the capacitor printed plate, and a first margin area is left between any two adjacent first cutting line patterns. The plurality of second cutting line patterns are arranged along the X-axis direction of the capacitor printed plate, and a second margin area is left between any two second cutting line patterns. At least one of (I) to (II) is satisfied:

[0007] (I) Among the facing sides of any two adjacent first cutting line patterns, one facing side is provided with a first protrusion, and the other facing side is provided with a first recess;

[0008] (II) Among the facing sides of any two adjacent second cutting line patterns, one facing side is provided with a second protruding portion, and the other facing side is provided with a second recessed portion.

[0009] Preferably, in any two adjacent first cutting line patterns, a size of the first protrusion in the Y-axis direction of the capacitor printed plate is a1, a size of the first margin area in the Y-axis direction of the capacitor printed plate is b1, 0<a1 / b1≤1.2, further, 0.3≤a1 / b1≤1;

[0010] And / or, in any two adjacent second cutting line graphics, the size of the second protrusion in the X-axis direction of the capacitor printed plate is a2, and the size of the second margin area in the X-axis direction of the capacitor printed plate is b2, 0<a2 / b2≤1.2, and further, 0.3≤a2 / b2≤1.

[0011] Preferably, the size of the first protrusion in the X-axis direction of the capacitor printed plate is c1, and in any two adjacent first cutting line patterns, the size of one first cutting line pattern in the X-axis direction of the capacitor printed plate is d1, and the size of the other first cutting line pattern in the X-axis direction of the capacitor printed plate is d2, 0.1≤c1 / d1≤0.4, 0.2≤c1 / d2≤0.8; further, 0.2≤c1 / d1≤0.3, 0.4≤c1 / d2≤0.6;

[0012] And / or, the size of the second protrusion in the Y-axis direction of the capacitor printed plate is c2, and the sizes of any two adjacent second cutting line graphics in the Y-axis direction of the capacitor printed plate are the same, both are d3, 0.1≤c2 / d3≤0.8; further, 0.2≤c2 / d3≤0.4.

[0013] Further preferably, the plurality of first cutting line patterns are aligned on a side away from the product area;

[0014] And / or, any two adjacent second cutting line patterns have the same size in the Y-axis direction of the capacitor printed plate.

[0015] Preferably, a first protrusion is provided on both sides of one first cutting line pattern, and the two first protrusions are symmetrical with respect to the X-axis direction of the capacitor printed plate; a first concave portion is provided on both sides of another first cutting line pattern, and the two first concave portions are symmetrical with respect to the X-axis direction of the capacitor printed plate, so that the first cutting line pattern provided with the first protrusion and the first cutting line pattern provided with the first concave are alternately arranged in the Y-axis direction of the capacitor printed plate;

[0016] And / or, in any two adjacent second cutting line graphics, second protrusions are respectively provided on both sides of one of the second cutting line graphics, and the two second protrusions are symmetrical with respect to the Y-axis direction of the capacitor printed plate, and second recesses are respectively provided on both sides of the other second cutting line graphics, and the two second recesses are symmetrical with respect to the Y-axis direction of the capacitor printed plate, so that the second cutting line graphics with second protrusions and the second cutting line graphics with second recesses are alternately arranged in the X-axis direction of the capacitor printed plate.

[0017] Preferably, the first protrusion and the first recess are complementary in shape;

[0018] And / or, the second protrusion and the second recess are complementary in shape.

[0019] Preferably, the shape of the first protrusion is any one of an arch, a polygon, a rounded polygon, and a sawtooth shape;

[0020] And / or, the second protrusion is in any one of an arcuate shape, a polygonal shape, a rounded polygonal shape, and a sawtooth shape.

[0021] Preferably, the shapes of opposite sides of the fixing block pattern and the adjacent first cutting line pattern are complementary;

[0022] And / or, the shapes of opposite sides of the fixing block pattern and the adjacent second cutting line pattern are complementary.

[0023] Furthermore, a first margin area is left between the fixed block pattern and the adjacent first cutting line pattern;

[0024] And / or, a second margin area is left between the fixed block pattern and the adjacent second cutting line pattern.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] The utility model can effectively reduce the accumulation of gaps in the printed sheet stacking structure, improve the interlayer bonding strength of the printed sheet stacking structure, avoid delamination and deterioration of stacking accuracy in subsequent processing, and thus ensure the qualified rate of capacitor products by respectively arranging a first protrusion and a first recessed portion on the opposite sides of any two adjacent first cutting line patterns, and respectively arranging a second protrusion and a second recessed portion on the opposite sides of any two adjacent second cutting line patterns. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic plan view of a capacitor printed plate provided in Example 1;

[0028] Figure 2 for Figure 1 Enlarged view of part A;

[0029] Figure 3 A partial schematic diagram of a capacitor printed plate provided in Example 8;

[0030] Figure 4 A partial schematic diagram of a capacitor printed plate provided in Example 9;

[0031] Figure 5 A partial schematic diagram of a capacitor printed plate provided in Example 10;

[0032] Figure 6 This is a schematic plan view of the capacitor printed plate provided for Comparative Example 1.

[0033] In the figure, 1-product graphic, 2-first cutting line graphic, 21-first raised portion, 22-first recessed portion, 3-second cutting line graphic, 31-second raised portion, 32-second recessed portion, 4-first margin area, 5-second margin area, 6-fixed block graphic. DETAILED DESCRIPTION

[0034] To better illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be further described below in conjunction with specific embodiments. Those skilled in the art should understand that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] See also Figures 1 to 5In a first aspect, the present invention provides a capacitor printing plate comprising a product area, a cutting line area, and a fixing area, wherein the cutting line area and the fixing area are arranged around the product area, wherein a plurality of product graphics 1 are arranged in the product area, and a fixing block graphic 6 is arranged in the fixing area. The cutting line area comprises a plurality of first cutting line graphics 2 and a plurality of second cutting line graphics 3, wherein the plurality of first cutting line graphics 2 are arranged along the Y-axis direction of the capacitor printing plate, and a first margin area 4 is left between any two adjacent first cutting line graphics 2, and the plurality of second cutting line graphics 3 are arranged along the X-axis direction of the capacitor printing plate, and a second margin area 5 is left between any two second cutting line graphics 3, satisfying at least one of (I) to (II):

[0036] (I) Among the facing sides of any two adjacent first cutting line patterns 2, one facing side is provided with a first protrusion 21, and the other facing side is provided with a first recessed portion 22;

[0037] (II) Among the facing sides of any two adjacent second cutting line patterns 3, one facing side is provided with a second protruding portion 31, and the other facing side is provided with a second recessed portion 32.

[0038] In the present invention, the product pattern 1 is used to form an internal electrode on the dielectric layer; the fixed block pattern 6 is used to form a fixed block on the dielectric layer, and the fixed block plays a role in fixing the printed sheet during lamination; the first cutting line pattern 2 is used to form a first cutting line on the dielectric layer; the second cutting line pattern 3 is used to form a second cutting line on the dielectric layer; the first margin area 4 is used to form a first margin area between any two adjacent first cutting lines on the dielectric layer after printing, and the second margin area 5 is used to form a second margin area between any two adjacent second cutting lines on the dielectric layer after printing. The first margin area and the second margin area can play a role in assisting in identifying the cutting position during the cutting process.

[0039] The utility model provides a first raised portion 21 and a first recessed portion 22 on the facing sides of any two adjacent first cutting line patterns 2, and provides a second raised portion 31 and a second recessed portion 32 on the facing sides of any two adjacent second cutting line patterns 3. When a plurality of printed sheets are sequentially staggered and stacked, in any two adjacent printed sheets, the raised portion of one printed sheet is correspondingly overlapped with the recessed portion of the other printed sheet. This can effectively reduce the accumulation of gaps in the laminated structure of the printed sheets, improve the interlayer bonding strength of the laminated structure of the printed sheets, avoid delamination and deterioration of the lamination accuracy during subsequent processing, and thus ensure the qualified rate of capacitor products.

[0040] In one embodiment, the first protrusion 21 and the first recess 22 are complementary in shape;

[0041] And / or, the second protrusion 31 and the second recess 32 are complementary in shape.

[0042] It can be understood that the present invention does not specifically limit the shape of the first protrusion 21 and the shape of the first recessed portion 22. As long as the shapes of the first protrusion 21 and the first recessed portion 22 are complementary, the shape of the first protrusion 21 can be any one of an arch, a polygon, a rounded polygon, and a sawtooth.

[0043] It can be understood that the present invention does not specifically limit the shapes of the second protrusion 31 and the second recessed portion 32. As long as the shapes of the second protrusion 31 and the second recessed portion 32 are complementary, the shape of the second protrusion 31 can be any one of an arch, a polygon, a rounded polygon, and a sawtooth.

[0044] In one embodiment, a plurality of first cutting line patterns 2 are distributed at equal intervals along the Y-axis direction of the capacitor printing plate.

[0045] And / or, a plurality of second cutting line patterns 3 are distributed at equal intervals along the X-axis direction of the capacitor printing plate.

[0046] In one embodiment, in any two adjacent first cutting line patterns 2, the size of the first protrusion 21 in the Y-axis direction of the capacitor printing plate is a1, and the size of the first margin area 4 in the Y-axis direction of the capacitor printing plate is b1, 0<a1 / b1≤1, and further, 0.3≤a1 / b1≤1;

[0047] And / or, in any two adjacent second cutting line graphics 3, the size of the second protrusion 31 in the X-axis direction of the capacitor printed plate is a2, and the size of the second margin area 5 in the X-axis direction of the capacitor printed plate is b2, 0<a2 / b2≤1.2, and further, 0.3≤a2 / b2≤1.

[0048] The inventors of the utility model have found that if 0.3≤a1 / b1≤1 and / or 0.3≤a2 / b2≤1, the gaps in the printed sheet laminate structure can be more effectively reduced, and the interlayer bonding strength of the printed sheet laminate structure can be effectively improved.

[0049] In one embodiment, the size of the first protrusion 21 in the X-axis direction of the capacitor printed plate is c1. Among any two adjacent first cutting line patterns 2, the size of one first cutting line pattern 2 in the X-axis direction of the capacitor printed plate is d1, and the size of the other first cutting line pattern 2 in the X-axis direction of the capacitor printed plate is d2, 0.1≤c1 / d1≤0.4, 0.2≤c1 / d2≤0.8; further, 0.2≤c1 / d1≤0.3, 0.4≤c1 / d2≤0.6;

[0050] And / or, the size of the second protrusion 31 in the Y-axis direction of the capacitor printed plate is c2, the size of the second cutting line pattern 3 in the Y-axis direction of the capacitor printed plate is d3, 0.1≤c2 / d3≤0.8; further, 0.2≤c2 / d3≤0.4.

[0051] The inventor of the utility model has found through research that if c1 / d1 and c1 / d2 are respectively controlled within appropriate ranges, the setting of the first raised portion 21 and the first recessed portion 22 can not only ensure that the first margin area can normally play the role of assisting in identifying the cutting position, but also effectively improve the interlayer bonding strength of the printed sheet laminated structure.

[0052] If c2 / d3 is controlled within an appropriate range, the provision of the second raised portion 31 and the second recessed portion 32 can not only ensure that the second margin area can normally play the role of assisting in identifying the cutting position, but also effectively improve the interlayer bonding strength of the printed sheet laminate structure.

[0053] Furthermore, a plurality of first cutting line patterns 2 are aligned on a side away from the product area;

[0054] And / or, any two adjacent second cutting line patterns 3 have the same size in the Y-axis direction of the capacitor printed plate.

[0055] In one embodiment, in any two adjacent first cutting line patterns 2, first protrusions 21 are respectively provided on both sides of one of the first cutting line patterns 2, and the two first protrusions 21 are symmetrical with respect to the X-axis direction of the capacitor printed plate, and first recesses 22 are respectively provided on both sides of the other first cutting line pattern 2, and the two first recesses 22 are symmetrical with respect to the X-axis direction of the capacitor printed plate; thereby, the first cutting line patterns 2 provided with the first protrusions 21 and the first cutting line patterns 2 provided with the first recesses 22 are alternately arranged in the Y-axis direction of the capacitor printed plate;

[0056] And / or, in any two adjacent second cutting line graphics 3, second protrusions 31 are respectively provided on both sides of one second cutting line graphics 3, and the two second protrusions 31 are symmetrical with respect to the Y-axis direction of the capacitor printed plate, and second recesses 32 are respectively provided on both sides of the other second cutting line graphics 3, and the two second recesses 32 are symmetrical with respect to the Y-axis direction of the capacitor printed plate, so that the second cutting line graphics 3 provided with the second protrusions 31 and the second cutting line graphics 3 provided with the second recesses 32 are alternately arranged in the X-axis direction of the capacitor printed plate.

[0057] In one embodiment, the shapes of the opposite sides of the fixing block pattern 6 and the adjacent first cutting line pattern 2 are complementary;

[0058] And / or, the shapes of opposite sides of the fixing block pattern 6 and the adjacent second cutting line pattern 3 are complementary.

[0059] Furthermore, a first margin area 4 is left between the fixed block pattern 6 and the adjacent first cutting line pattern 2;

[0060] And / or, a second margin area 5 is left between the fixed block pattern 6 and the adjacent second cutting line pattern 3 .

[0061] In a second aspect, the present invention provides a method for preparing a capacitor, comprising the following steps:

[0062] S1. Prepare a dielectric layer, print an electrode paste on the dielectric layer using a printing device, and obtain a printed sheet by peeling; the printing device has a capacitor printing plate as described in the first aspect;

[0063] S2, laminating the printed sheets obtained in step S1 and then cutting them to obtain a laminate;

[0064] S3. Sintering the laminate obtained in step S2 to obtain a capacitor.

[0065] In one embodiment, the printing device is any one of a gravure printing device, a relief printing device, a lithographic printing device, and a screen printing device.

[0066] In one embodiment, in step S1 , the method for preparing the dielectric layer includes: casting a ceramic slurry to form the dielectric layer.

[0067] In one embodiment, step S2 specifically includes: stacking the printed sheets in a predetermined number of layers in a staggered manner according to a preset method, and then cutting them vertically and horizontally according to the identification of the margin areas and cutting lines to obtain a laminated body.

[0068] The present invention provides the following examples and comparative examples to facilitate understanding of the present invention. These examples are not intended to limit the scope of the claims.

[0069] Unless otherwise specified, the reagents, methods and equipment used in the present invention are all conventional reagents, methods and equipment in this technical field.

[0070] Example 1

[0071] The embodiment of the capacitor printing plate of the utility model is as follows Figures 2-3 As shown, the capacitor printing plate includes a product area, a cutting line area and a fixed area. The cutting line area and the fixed area are arranged around the product area. Several product graphics 1 are arranged in the product area, and a fixed block graphic 6 is arranged in the fixed area. The cutting line area includes several first cutting line graphics 2 and several second cutting line graphics 3.

[0072] Several first cutting line graphics 2 are arranged at equal intervals along the Y-axis direction of the capacitor printing plate, so that a first margin area 4 is left between any two adjacent first cutting line graphics 2, and several first cutting line graphics 2 are aligned on the side away from the product area; in any two adjacent first cutting line graphics 2, one of the first cutting line graphics 2 is respectively provided with a first protrusion 21 on both sides, and the two first protrusions 21 are symmetrical with respect to the X-axis direction of the capacitor printing plate, and the other first cutting line graphics 2 is respectively provided with a first recessed portion 22 on both sides, and the two first recessed portions 22 are symmetrical with respect to the X-axis direction of the capacitor printing plate, so that the first cutting line graphics 2 provided with the first protrusion 21 and the first cutting line graphics 2 provided with the first recessed portion 22 are alternately arranged in the Y-axis direction of the capacitor printing plate; the first protrusion 21 and the first recessed portion 22 are aligned in the Y-axis direction of the capacitor printing plate and have complementary shapes; the part of the first cutting line graphics 2 excluding the first protrusion and the first recessed portion is a rectangle, and the shape of the first protrusion 21 is an isosceles triangle.

[0073] The size of the first raised portion 21 in the Y-axis direction of the capacitor printed plate (i.e., the height of the isosceles triangle) is a1, the size of the first margin area 4 in the Y-axis direction of the capacitor printed plate is b1, the size of the first raised portion 21 in the X-axis direction of the capacitor printed plate (i.e., the length of the base of the isosceles triangle) is c1, the size of the first cutting line pattern 2 with the first raised portion 21 in the X-axis direction of the capacitor printed plate is d1, and the size of the first cutting line pattern 2 with the first recessed portion 22 in the X-axis direction of the capacitor printed plate is d2, a1 / b1=1, c1 / d1=0.25, c1 / d2=0.5.

[0074] The second cutting line pattern 3 is rectangular, and several second cutting line patterns 3 are arranged at equal intervals along the X-axis direction of the capacitor printing plate, so that a second margin area 5 is left between any two second cutting line patterns 3. The size of the second margin area 5 in the X-axis direction is b2, and the size of the second cutting line pattern 3 in the Y-axis direction of the capacitor printing plate is d3.

[0075] The dimension of the fixed block pattern 6 in the X-axis direction of the capacitor printed plate is equal to d2, and the dimension of the fixed block pattern 6 in the Y-axis direction of the capacitor printed plate is equal to d3. The opposite sides of the fixed block pattern 6 and its adjacent first cutting line pattern 2 are parallel and complementary in shape, so that a first margin area 4 is left between the fixed block pattern 6 and its adjacent first cutting line pattern 2; the opposite sides of the fixed block pattern 6 and its adjacent second cutting line pattern 3 are parallel, so that a second margin area 5 is left between the fixed block pattern 6 and its adjacent second cutting line pattern 3.

[0076] Several product graphics 1 are evenly distributed in the product area according to the requirements of 0603 specification capacitors. The product graphics 1 are rectangular, and the spacing between any two adjacent product graphics 1 in the Y-axis direction is equal to b1.

[0077] A method for preparing a capacitor comprises the following steps:

[0078] S1. Prepare the following components in parts by weight: 60 parts barium titanate ceramic powder, 10 parts toluene, 10 parts ethanol, and 12 parts polyvinyl butyral. Mix the components evenly to obtain a ceramic slurry. Cast the ceramic slurry to form a dielectric layer. Use a screen printing device to print an electrode slurry on the dielectric layer to obtain a printed sheet. The screen printing device has a capacitor printing plate according to this embodiment.

[0079] S2. Stacking the printed sheets in a Y-axis staggered manner, so that each two adjacent printed sheets are staggered along the Y-axis direction of the capacitor printed plate by a length R, with the number of stacked layers being 100. Then, cutting the printed sheets vertically and horizontally according to the margin areas and cutting line marks to obtain a laminated body;

[0080] S3. After the laminate is sintered, external electrodes are prepared at both ends of the laminate to obtain a capacitor.

[0081] Examples 2 to 7

[0082] The difference between Examples 2 to 3 and Example 1 is that the values of a1 and c1 are different. In Example 2, a1 / b1=0.6, c1 / d1=0.2, c1 / d2=0.4; in Example 3, a1 / b1=0.3, c1 / d1=0.3, c1 / d2=0.6.

[0083] The difference between Examples 4 and 5 and Example 1 is that the value of a1 is different. In Example 4, a1 / b1=1.2; in Example 5, a1 / b1=0.1;

[0084] The difference between Examples 6 and 7 and Example 1 is that the value of c1 is different. In Example 6, c1 / d1=0.1, c1 / d2=0.2; in Example 7, c1 / d1=0.4, c1 / d2=0.8.

[0085] Example 8

[0086] The difference between this embodiment and embodiment 1 is that, in this embodiment, the shape of the first protrusion is an arch (such as Figure 3 As shown), a1 is the height of the bow, c1 is the chord length of the bow, a1 / b1=0.6, c1 / d1=0.2, c1 / d2=0.4.

[0087] Example 9

[0088] The difference between this embodiment and embodiment 1 is that Figure 4As shown, in this embodiment, among any two adjacent second cutting line patterns 3, one of the second cutting line patterns 3 is provided with a second protrusion 31 on both sides, and the two second protrusions 31 are symmetrical with respect to the Y-axis direction of the capacitor printed plate, and the other second cutting line pattern 3 is provided with a second recessed portion 32 on both sides, and the two second recessed portions 32 are symmetrical with respect to the Y-axis direction of the capacitor printed plate, so that the second cutting line patterns 3 provided with the second protrusion 31 and the second cutting line patterns 3 provided with the second recessed portion 32 are alternately arranged in the X-axis direction of the capacitor printed plate; the second protrusion The second protrusion 31 and the second recess 32 are complementary in shape and aligned in the X-axis direction of the capacitor printed plate; the second protrusion 31 is in the shape of an isosceles triangle; the dimension of the second protrusion 31 in the X-axis direction of the capacitor printed plate (i.e., the height of the isosceles triangle) is a2, the dimension of the second margin area 5 in the X-axis direction of the capacitor printed plate is b2, the dimension of the second protrusion 31 in the Y-axis direction of the capacitor printed plate (i.e., the length of the base of the isosceles triangle) is c2, and the dimension of the second cutting line pattern 3 in the Y-axis direction of the capacitor printed plate is d3, a2 / b2=1, c2 / d3=0.5;

[0089] The opposite sides of the fixing block pattern 6 and the adjacent second cutting line pattern 3 are parallel and complementary in shape.

[0090] Example 10

[0091] The difference between this embodiment and embodiment 9 is that Figure 5 As shown, in this embodiment, the shape of the second protrusion 31 is an isosceles trapezoid, a2 is the height of the isosceles trapezoid, c2 is the length of the base of the isosceles trapezoid, a2 / b2=0.8, c2 / d3=0.4, and in this embodiment, the first cutting line figure 2 is not provided with the first protrusion and the first recessed part, and the first cutting line figure 2 is a rectangle; in the preparation method of the capacitor of this embodiment, step S2 stacks the printed sheets in an X-axis staggered manner, so that each adjacent two printed sheets are staggered along the X-axis direction of the capacitor printed plate according to a length R, and the number of stacked layers is 100, and then the vertical and horizontal cutting is performed according to the markings of the margin area and the cutting line to obtain a stacked body.

[0092] Examples 11 to 14

[0093] The difference between Example 11 and Example 10 is that the values of a2 and / or c2 are different; in Example 11, a2 / b2=0.3;

[0094] The difference between Examples 12 to 14 and Example 10 is that the value of c2 is different; in Example 12, c2 / d3 = 0.1; in Example 13, c2 / d3 = 0.8; in Example 14, c2 / d3 = 0.6.

[0095] Comparative Example 1

[0096] The difference between this comparative example and Example 1 is that Figure 6 As shown, in this comparative example, the first cutting line pattern 2 is not provided with the first protruding portion and the first recessed portion, and the first cutting line pattern 2 is a rectangle.

[0097] Capacitors were prepared using the capacitor printing plates and preparation methods of the above examples and comparative examples, and the following performance tests were performed:

[0098] (1) Cutting defect rate: The cut laminates were inspected. The number of laminate samples inspected was 1000, and the proportion of laminates cut to the internal electrodes to the total number of laminates was calculated (as the cutting defect rate);

[0099] (2) Delamination ratio: The side surface of the capacitor was observed under a microscope. The number of observed capacitor samples was 1000, and the ratio of capacitors with delamination to the total number of capacitors was calculated as the delamination ratio.

[0100] The performance test results are shown in Table 1 below:

[0101] Table 1

[0102]

[0103]

[0104] As can be seen from Table 1, in the green sheets prepared in Examples 1 to 13, the use of the printing plate with a specific structure of the present invention for printing can effectively avoid delamination and reduce the cutting defect rate.

[0105] It can be seen from Examples 1 to 5 that when a1 / b1 is 0.3 to 1, the provision of the first raised portion and the first recessed portion can more effectively reduce the gaps in the printed sheet laminate structure while ensuring the first cutting line identification function, thereby effectively improving the interlayer bonding strength of the printed sheet laminate structure; when a1 / b1>1, it is easy to make the cutting line difficult to identify during subsequent cutting, thereby increasing the cutting defect rate; when a1 / b1<0.3, the provision of the first raised portion and the second recessed portion has no obvious effect on improving the interlayer bonding strength of the printed sheet laminate structure, thereby increasing the delamination ratio of the capacitor product.

[0106] As can be seen from Examples 1 and 6-7, when c1 / d1 is 0.2-0.3 and c1 / d2 is 0.4-0.6, the provision of the first raised portion and the first recessed portion not only ensures that the first margin area properly functions to assist in identifying the cutting position, but also effectively improves the interlayer bonding strength of the printed sheet laminate structure. When c1 / d1 < 0.2 and c1 / d2 < 0.4, the provision of the first raised portion and the first recessed portion does not significantly improve the interlayer bonding strength of the printed sheet laminate structure, increasing the delamination rate of the capacitor product. When c1 / d1 > 0.3 and c1 / d2 > 0.6, the provision of the first raised portion and the first recessed portion easily makes it difficult to identify the first cutting line during subsequent cutting, affecting the cutting effect.

[0107] Comparing Example 10 with Examples 12 to 14, it can be seen that controlling c2 / d3 within the range of 0.4 to 0.6 can not only ensure that the second margin area can normally play the role of assisting in identifying the cutting position, but also more effectively improve the interlayer bonding strength of the printed sheet laminate structure.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A capacitor printing plate, characterized in that: The invention comprises a product area, a cutting line area and a fixed area, wherein the cutting line area and the fixed area are arranged around the product area, a plurality of product patterns are arranged in the product area, and a fixed block pattern is arranged in the fixed area. The cutting line area comprises a plurality of first cutting line patterns and a plurality of second cutting line patterns, wherein the plurality of first cutting line patterns are arranged along the Y-axis direction of the capacitor printed plate, and a first margin area is left between any two adjacent first cutting line patterns, and the plurality of second cutting line patterns are arranged along the X-axis direction of the capacitor printed plate, and a second margin area is left between any two second cutting line patterns, and at least one of (I) to (II) is satisfied: (I) Among the facing sides of any two adjacent first cutting line patterns, one facing side is provided with a first protrusion, and the other facing side is provided with a first recess; (II) Among the facing sides of any two adjacent second cutting line patterns, one facing side is provided with a second protruding portion, and the other facing side is provided with a second recessed portion.

2. The capacitor printed plate according to claim 1, wherein: In any two adjacent first cutting line patterns, the size of the first protrusion in the Y-axis direction of the capacitor printed plate is a1, and the size of the first margin area in the Y-axis direction of the capacitor printed plate is b1, 0<a1 / b1≤1.2; And / or, in any two adjacent second cutting line patterns, the size of the second protrusion in the X-axis direction of the capacitor printed plate is a2, the size of the second margin area in the X-axis direction of the capacitor printed plate is b2, 0<a2 / b2≤1.

2.

3. The capacitor printing plate according to claim 1, wherein: The dimension of the first protrusion in the X-axis direction of the capacitor printed plate is c1. Among any two adjacent first cutting line patterns, the dimension of one first cutting line pattern in the X-axis direction of the capacitor printed plate is d1, and the dimension of the other first cutting line pattern in the X-axis direction of the capacitor printed plate is d2, 0.1≤c1 / d1≤0.4, 0.2≤c1 / d2≤0.8; And / or, the size of the second protrusion in the Y-axis direction of the capacitor printed plate is c2, and the sizes of any two adjacent second cutting line graphics in the Y-axis direction of the capacitor printed plate are the same, both are d3, 0.1≤c2 / d3≤0.

8.

4. The capacitor printing plate according to claim 1, wherein: In any two adjacent first cutting line patterns, a first convex portion is provided on both sides of one of the first cutting line patterns, and the two first convex portions are symmetrical with respect to the X-axis direction of the capacitor printed plate; a first concave portion is provided on both sides of the other first cutting line pattern, and the two first concave portions are symmetrical with respect to the X-axis direction of the capacitor printed plate, so that the first cutting line patterns provided with the first convex portions and the first cutting line patterns provided with the first concave portions are alternately arranged in the Y-axis direction of the capacitor printed plate; And / or, in any two adjacent second cutting line graphics, second protrusions are respectively provided on both sides of one of the second cutting line graphics, and the two second protrusions are symmetrical with respect to the Y-axis direction of the capacitor printed plate, and second recesses are respectively provided on both sides of the other second cutting line graphics, and the two second recesses are symmetrical with respect to the Y-axis direction of the capacitor printed plate, so that the second cutting line graphics with second protrusions and the second cutting line graphics with second recesses are alternately arranged in the X-axis direction of the capacitor printed plate.

5. The capacitor printing plate according to claim 1, wherein: The first protrusion and the first recess are complementary in shape; And / or, the second protrusion and the second recess are complementary in shape.

6. The capacitor printed plate according to claim 1, wherein: The shapes of opposite sides of the fixing block pattern and its adjacent first cutting line pattern are complementary; And / or, the shapes of opposite sides of the fixing block pattern and the adjacent second cutting line pattern are complementary.

7. The capacitor printed plate according to claim 6, wherein: A first margin area is left between the fixed block pattern and the adjacent first cutting line pattern; And / or, a second margin area is left between the fixed block pattern and the adjacent second cutting line pattern.

8. The capacitor printed plate according to claim 1, wherein: A plurality of first cutting line patterns are parallel and equally spaced along the Y-axis direction of the capacitor printing plate; And / or, a plurality of second cutting line patterns are distributed at equal intervals along the Y-axis direction of the capacitor printing plate.

9. The capacitor printed plate according to claim 1, wherein: The shapes of opposite sides of the fixing block pattern and its adjacent first cutting line pattern are complementary; And / or, the shapes of opposite sides of the fixing block pattern and the adjacent second cutting line pattern are complementary.

10. The capacitor printed plate according to claim 9, wherein: A first margin area is left between the fixed block pattern and the adjacent first cutting line pattern; And / or, a second margin area is left between the fixed block pattern and the adjacent second cutting line pattern.

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