A silver-dipping turntable for ceramic waveguide filters

Abstract

The present invention relates to a silver-dipping turntable for a ceramic waveguide filter, which comprises an upper support plate, a lower support plate and a bottom plate that are sequentially and spacedly arranged from top to bottom; the upper support plate, the lower support plate and the bottom plate are fixedly connected by a plurality of bolts; the upper support plate and the lower support plate have the same structure, and the plate surfaces are both provided with a plurality of uniformly distributed material holes and first connection holes facilitating the passing of bolts; the inner walls around each of the material holes are concave; the bottom plate is provided with a plurality of limiting holes corresponding to the positions of the material holes and second connection holes corresponding to the positions of the first connection holes; two parallel limiting strips are arranged in the limiting holes; since the inner walls around the material holes are concave in the present invention, only four corners are in contact with the ceramic waveguide filter, which can greatly reduce the contact area, reduce the defective rate of the product and improve the appearance of the product.

Description

Technical Field

[0001] The present invention relates to the technical field of medium filter manufacturing, and particularly refers to a silver dipping turntable for ceramic waveguide filters. Background Art

[0002] In the past two years, 5G has emerged, and many advantages brought by 5G have been continuously mentioned. However, since the transmission of 5G signals belongs to high-frequency waves, the transmission range is greatly limited. Therefore, 5G base stations will be arranged more densely in the future, and a very important component in the base station: the medium filter is essential. The medium filter used in 5G is sintered from ceramic materials, and the final product manufacturing process can be divided into: powder - pressing - sintering - metallization - electrode making - SMT patching - debugging. The metallization process has always played a crucial role in the production process of filters. The specific process is: first, immerse the turntable with the ceramic waveguide filter in the silver paste, then lift and rotate to spin-dry the silver paste on the ceramic dielectric waveguide, and finally dry it to form a silver layer on the surface of the ceramic waveguide filter. However, the traditional turntable has the following problems: 1. The traditional turntable is entirely made of stainless steel, which not only has a high production cost but also a long processing cycle; 2. The contact surface between the traditional turntable and the ceramic waveguide filter is large, resulting in easy generation of defective defects at the contact positions between the surface of the ceramic waveguide filter and the turntable, affecting the product appearance. Summary of the Invention

[0003] The purpose of the present invention is to provide a silver dipping turntable for ceramic waveguide filters to overcome the deficiencies of the prior art.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: a silver dipping turntable for ceramic waveguide filters, including an upper support plate, a lower support plate, and a bottom plate that are sequentially and spaced apart from top to bottom; the upper support plate, the lower support plate, and the bottom plate are fixedly connected by multiple bolts; the upper support plate and the lower support plate have the same structure, and their plate surfaces are provided with a plurality of uniformly distributed material holes and first connection holes for facilitating the passing of bolts; the inner walls around each material hole are concave; the bottom plate is provided with a plurality of limiting holes corresponding to the positions of the material holes and second connection holes corresponding to the positions of the first connection holes; two parallel limiting bars are arranged in the limiting holes.

[0005] Preferably, chamfers are provided around the bottom of each material hole; the depth of the chamfer is 1 / 4 to 3 / 4 of the thickness of the material hole.

[0006] Preferably, the inner walls around each material hole are arc-shaped or V-shaped.

[0007] Preferably, the plurality of material holes are arranged in a matrix, and a row of hollow holes is provided between adjacent two rows of material holes.

[0008] Preferably, each row of hollow holes is arranged staggeredly with adjacent two rows of material holes.

[0009] Preferably, the upper support plate and the lower support plate are made of plastic material.

[0010] Preferably, the limiting strip is V-shaped, and the included angle thereof is 90-150 degrees.

[0011] Preferably, the limiting strip is integrally formed by stamping.

[0012] Preferably, the bottom plate is made of stainless steel material.

[0013] Preferably, the distance between the upper support plate and the lower support plate is greater than the distance between the lower support plate and the bottom plate.

[0014] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0015] 1. Since the inner walls around the material holes of the present invention are all concave in shape, only four corners are in contact with the ceramic waveguide filter, which can greatly reduce the contact area with the side surface of the ceramic waveguide filter, reduce the defective rate of the product, and improve the appearance of the product;

[0016] 2. By providing chamfers around the bottom of the material holes, the present invention can further reduce the contact area with the side surface of the ceramic waveguide filter, reduce the defective rate of the product, and improve the appearance of the product;

[0017] 3. By setting the limiting strip to be V-shaped, the present invention can further reduce the contact area with the bottom of the ceramic waveguide filter, reduce the defective rate of the product, and improve the appearance of the product;

[0018] 4. By providing a row of hollow holes between adjacent two rows of material holes, the present invention can reduce the silver paste residue after spin-drying and ensure the flatness of the product surface;

[0019] 5. Since the upper support plate and the lower support plate of the present invention are made of plastic material, it can not only reduce the production cost, but also shorten the production cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The technical solution of the present invention will be further described below with reference to the drawings:

[0021] Att Figure 1 is a partial side view of the silver dipping spinner for ceramic waveguide filters of the present invention.

[0022] Att Figure 2 is a partial structural view of the upper support plate in the silver dipping spinner for ceramic waveguide filters of the present invention;

[0023] Att Figure 3 is a partial structural view of the bottom plate in the silver dipping spinner for ceramic waveguide filters of the present invention.

[0024] Among them: 1. upper support plate; 11. chamfer; 12. material hole; 13. hollow hole; 14. first connecting hole; 2. lower support plate; 3. bottom plate; 31. limit strip; 32. limit hole; 33. second connecting hole; 4. ceramic waveguide filter. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] Attached Figures 1-3 The ceramic waveguide filter silver-impregnated spinning tray of the present invention comprises an upper support plate 1, a lower support plate 2 and a bottom plate 3 which are sequentially arranged from top to bottom; the upper support plate 1, the lower support plate 2 and the bottom plate 3 are fixedly connected by a plurality of bolts; the upper support plate 1 and the lower support plate 2 have the same structure, and the plate surface is provided with a plurality of evenly distributed material holes 12, and a first connecting hole 14 for the bolt to pass through; the inner wall around each material hole 12 is in an inner arc shape or a V shape; the bottom plate 3 is provided with a plurality of limit The ceramic waveguide filter 4 is provided with a hole 32 and a second connection hole 33 corresponding to the position of the first connection hole 14; two parallel limiting bars 31 are arranged in the limiting hole 32; when in use: the ceramic waveguide filter 4 vertically passes through the material holes 12 of the upper support plate 1 and the lower support plate 2, and is finally placed on the two limiting bars 31 in the limiting hole 32. Since the inner walls around the material hole 12 are all concave in shape, only four corners are in contact with the ceramic waveguide filter 4, which can greatly reduce the contact area with the side of the ceramic waveguide filter 4, reduce the product defect rate, and improve the product appearance.

[0027] Furthermore, chamfers 11 are arranged around the bottom of each of the material holes 12; the depth of the chamfers 11 is 1 / 2 of the thickness of the material hole 12, which can further reduce the contact area with the side of the ceramic waveguide filter 4, reduce the product defect rate, and improve the product appearance.

[0028] Furthermore, the plurality of material holes 12 are arranged in a matrix, and a row of hollow holes 13 is provided between two adjacent rows of material holes 12, which can reduce the silver paste residue after drying and ensure the flatness of the product surface.

[0029] Furthermore, each row of the hollow holes 13 is staggered with two adjacent rows of material holes 12 , so that the spacing between the material holes 12 and the hollow holes 13 is more compact.

[0030] Furthermore, the upper support plate 1 and the lower support plate 2 are made of plastic material, which can not only reduce the production cost but also shorten the production cycle.

[0031] Furthermore, the limiting strip 31 is V-shaped with an angle of 120 degrees, which can further reduce the contact area with the bottom of the ceramic waveguide filter 4, reduce the product defect rate, and improve the product appearance.

[0032] Furthermore, the limiting strip 31 is integrally formed by stamping, which can be mass-produced to reduce production costs.

[0033] Furthermore, the bottom plate 3 is made of stainless steel material, which can not only increase the overall strength but also facilitate stamping.

[0034] Furthermore, the distance between the upper support plate 1 and the lower support plate 2 is twice the distance between the lower support plate 2 and the bottom plate 3. This structure has good stability and can effectively prevent the ceramic waveguide filter 4 from tilting during the dehydration process.

[0035] The above are only specific application examples of the present invention and do not constitute any limitation to the protection scope of the present invention. Any technical solutions formed by equivalent transformation or equivalent substitution fall within the scope of the protection of the present invention.

Claims

1. A silver-dipping spinner for a ceramic waveguide filter, characterized in that: It includes an upper support plate, a lower support plate and a bottom plate which are sequentially and spacedly arranged from top to bottom; The upper support plate, the lower support plate and the bottom plate are fixedly connected by a plurality of bolts; The upper support plate and the lower support plate have the same structure. The plate surfaces are both provided with a plurality of uniformly distributed material holes and first connection holes facilitating the passing of bolts; the inner walls around each of the material holes are concave; chamfers are provided around the bottom of each of the material holes; the plurality of material holes are arranged in a matrix, and a row of hollow holes is provided between adjacent two rows of material holes; A plurality of limiting holes corresponding to the positions of the material holes and second connection holes corresponding to the positions of the first connection holes are provided on the bottom plate; two parallel limiting bars are arranged in the limiting holes; the limiting bars are V-shaped.

2. The silver-dipping turntable of the ceramic waveguide filter according to claim 1, wherein: The depth of the chamfer is 1 / 4 to 3 / 4 of the thickness of the material hole.

3. The silver-immersed spinning disc of the ceramic waveguide filter according to claim 2, wherein: The inner walls around each of the material holes are arc-shaped or V-shaped.

4. The silver-immersed spinning disc of the ceramic waveguide filter according to claim 3, wherein: Each row of the hollow holes is arranged staggeredly with the adjacent two rows of material holes.

5. The silver-immersed spinning disc of the ceramic waveguide filter according to claim 4, wherein: The upper support plate and the lower support plate are made of plastic material.

6. The silver-dipping turntable of the ceramic waveguide filter according to any one of claims 1-5, characterized in that: The included angle of the limiting bars is 90-150 degrees.

7. The silver-immersed spinning disk of the ceramic waveguide filter according to claim 6, characterized in that: The limiting bars are integrally formed by stamping.

8. The silver-dipping turntable of the ceramic waveguide filter according to claim 7, wherein: The bottom plate is made of stainless steel material.

9. The silver-dipping spinning disc of the ceramic waveguide filter according to claim 8, characterized in that: The distance between the upper support plate and the lower support plate is greater than the distance between the lower support plate and the bottom plate.

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