Novel debugging structure of filter

Abstract

The utility model is applicable to the field of filters, and provides a novel debugging structure of a filter, which comprises a filter body and a tuning assembly, the filter body comprises a cavity, the interior of the cavity is of a hollow structure, the upper end of the cavity is provided with a cavity opening, the interior of the cavity is provided with a resonance rod, and the tuning assembly comprises a tuning cover plate, a tool cover plate, a tuning screw rod and a screwing piece. The tuning cover plate is arranged at the upper end of the cavity and covers an opening of the cavity, the tuning cover plate comprises first tuning cover plates at the two ends and a second tuning cover plate in the middle, the thickness of the second tuning cover plate is smaller than that of the first tuning cover plates, a cover plate fixing piece is arranged in the middle of the second tuning cover plate, the two ends of the tool cover plate are fixed to the upper end of the cavity, and the tool cover plate is provided with a screw hole. The tuning screw penetrates through the screw hole of the tool cover plate and is in threaded connection with the tool cover plate, and the screwing piece penetrates through the tuning screw and is in threaded connection and fixed with the cover plate fixing piece. Therefore, according to the novel debugging structure of the filter provided by the utility model, the tuning frequency is changed, and the intermodulation qualified rate and the stability are improved.

Description

Technical Field

[0001] The utility model relates to the field of filters, in particular to a novel debugging structure of a filter. Background Art

[0002] A filter is a key device in modern mobile communication systems and is widely used in wireless communication base stations. With the rapid development of wireless communication technology, the market has increasingly strict requirements for the intermodulation performance and stability of communication base station equipment. The existing debugging structure of the filter has high debugging difficulty and high technical content, and debris will enter the cavity during the tuning process, affecting the qualification rate and stability.

[0003] In summary, it is obvious that there are inconveniences and defects in the prior art in actual use, so it is necessary to improve it. Summary of the Utility Model

[0004] Aiming at the above defects, the purpose of the utility model is to provide a novel debugging structure of a filter to achieve changing the tuning frequency and improving the intermodulation qualification rate and stability at the same time.

[0005] To achieve the above purpose, the utility model provides a novel debugging structure of a filter, which includes a filter body and a tuning component. The filter body includes a cavity, the interior of the cavity is a hollow structure, the upper end of the cavity is provided with a cavity opening, and a resonant rod is arranged inside the cavity. The tuning component includes a tuning cover plate, a tooling cover plate, a tuning screw and a screw connection part. The tuning cover plate is arranged at the upper end of the cavity and covers the cavity opening. The tuning cover plate includes a first tuning cover plate at both ends and a second tuning cover plate in the middle. The thickness of the second tuning cover plate is less than that of the first tuning cover plate. A cover plate fixing part is arranged in the middle of the second tuning cover plate. The two ends of the tooling cover plate are fixed to the upper end of the cavity. The tooling cover plate is provided with a screw hole. The tuning screw passes through the screw hole of the tooling cover plate and is screwed to the tooling cover plate. The screw connection part passes through the tuning screw and is screwed and fixed to the cover plate fixing part.

[0006] According to the novel debugging structure of the filter of the utility model, a through hole is arranged in the middle of the tuning screw, and the screw connection part passes through the through hole of the tuning screw and is screwed and fixed to the cover plate fixing part.

[0007] According to the novel debugging structure of the filter of the utility model, an internal thread is arranged in the screw hole, an external thread is arranged on the outer periphery of the tuning screw, and the internal thread is matched with the external thread to screw the tuning screw to the tooling cover plate.

[0008] According to the novel debugging structure of the filter of the utility model, the two ends of the tooling cover plate are respectively screwed to the two ends of the cavity.

[0009] For the novel debugging structure of the filter according to the present utility model, fixing holes are respectively provided at both ends of the tooling cover plate, threaded holes corresponding to the fixing holes are respectively provided at both ends of the cavity, and fixing screws pass through the fixing holes and are screwed into the threaded holes to fix the tooling cover plate to the upper end of the cavity.

[0010] For the novel debugging structure of the filter according to the present utility model, both ends of the tooling cover plate are respectively clamped to both ends of the cavity.

[0011] For the novel debugging structure of the filter according to the present utility model, clamping interfaces are respectively provided at both ends of the tooling cover plate, clamping members corresponding to the clamping interfaces are respectively provided at both ends of the cavity, and the clamping interfaces at both ends of the tooling cover plate are respectively clamped to the clamping members at both ends of the cavity.

[0012] For the novel debugging structure of the filter according to the present utility model, the cover plate fixing member is provided with a cover plate fixing member thread for screwing with the screwing member.

[0013] For the novel debugging structure of the filter according to the present utility model, the cover plate fixing member is two cover plate columns, and the two cover plate columns are parallel to each other.

[0014] For the novel debugging structure of the filter according to the present utility model, the screwing member is a tuning screw.

[0015] The present utility model provides a novel debugging structure of a filter, including a filter body and a tuning component. A resonant rod is provided inside the cavity of the filter body. The tuning cover plate of the tuning component covers the cavity opening of the cavity to form a sealed structure. During the tuning process, the inside of the cavity is not easily affected. The thickness of the second tuning cover plate in the middle of the tuning cover plate is less than the thickness of the second tuning cover plate at both ends of the tuning cover plate. A tuning screw is provided in the tooling cover plate at the upper end of the tuning cover plate. By rotating the tuning screw, the second tuning cover plate in the tuning cover plate deforms upward or downward. When the second tuning cover plate deforms upward, the tuning frequency increases. When the second tuning cover plate deforms upward, the tuning frequency decreases. Thereby, the novel debugging structure of the filter of the present utility model realizes changing the tuning frequency and simultaneously improves the intermodulation qualification rate and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the novel debugging structure of the filter provided by the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0018] As shown Figure 1 in the figure, the present utility model provides a novel debugging structure 100 for a filter, including a filter body and a tuning component. The filter body includes a cavity 1, the interior of the cavity 1 is a hollow structure, the upper end of the cavity 1 is provided with a cavity opening 11, and a resonance rod 2 is arranged inside the cavity 1. The tuning component includes a tuning cover plate 3, a tooling cover plate 4, a tuning screw 5 and a screwing member 6. The tuning cover plate 3 is arranged at the upper end of the cavity 1 and covers the cavity opening 11. During the tuning process, the tuning cover plate 3 covering the cavity 1 seals the cavity 1 into a sealed structure, so that debris and sundries cannot enter the cavity 1, improving the qualification rate of intermodulation and making the tuning process more stable. The tuning cover plate 3 includes a first tuning cover plate 31 at both ends and a second tuning cover plate 32 in the middle. The thickness of the second tuning cover plate 32 is smaller than that of the first tuning cover plate 31, and the second tuning cover plate 32 is prone to deformation under external force. A cover plate fixing member 33 is arranged in the middle of the second tuning cover plate 32. The two ends of the tooling cover plate 4 are fixed to the upper end of the cavity 1. The tooling cover plate 4 is provided with a screw hole. The tuning screw 5 passes through the screw hole of the tooling cover plate 4 and is screwed with the tooling cover plate 4. The screwing member 6 passes through the tuning screw 5 and is screwed and fixed with the cover plate fixing member 33. By rotating the tuning screw 5, the second tuning cover plate 32 deforms to change the tuning frequency.

[0019] Preferably, a through hole 51 is arranged in the middle of the tuning screw 5. The screwing member 6 passes through the through hole 51 of the tuning screw 5 and is screwed and fixed with the cover plate fixing member 33. The through hole 51 narrows at the bottom of the tuning screw 5, and the top of the screwing member 6 cannot pass through the bottom of the through hole 51. The top of the screwing member 6 moves in the middle of the through hole 51, and the screwing member 6 can be freely disassembled on the tuning screw 5. The structure is simple. During the tuning process, the screwing member 6 applies a force to the second tuning cover plate 32 upward or downward. When the screwing member 6 is pulled upward, the second tuning cover plate 32 deforms upward under the drive of the screwing member 6; when the screwing member 6 moves downward, the second tuning cover plate 32 deforms downward under the pressing of the screwing member 6.

[0020] Preferably, an internal thread is arranged in the screw hole, and an external thread is arranged on the outer periphery of the tuning screw 5. The internal thread and the external thread are matched to screw the tuning screw 5 with the tooling cover plate 4. The tuning screw 5 is screwed onto the internal thread of the tooling cover plate 4 through the external thread. The tuning screw 5 moves up and down in the tooling cover plate 4, driving the tuning cover plate 3 to deform up and down to adjust the tuning frequency.

[0021] Preferably, the two ends of the tooling cover plate 4 are respectively screwed to the two ends of the cavity 1, and the tooling cover plate 4 is fixed to the upper end of the cavity 1.

[0022] Preferably, fixing holes 41 are respectively provided at both ends of the tooling cover plate 4, threaded holes 12 corresponding to the fixing holes 41 are respectively provided at both ends of the cavity 1, and fixing screws 7 pass through the fixing holes 41 and are screwed into the threaded holes 12 to fix the tooling cover plate 4 to the upper end of the cavity 1.

[0023] Preferably, both ends of the tooling cover plate 4 are respectively clamped to both ends of the cavity 1, and the tooling cover plate 4 is fixed to the upper end of the cavity 1.

[0024] Preferably, clamping interfaces are respectively provided at both ends of the tooling cover plate 4, clamping members corresponding to the clamping interfaces are respectively provided at both ends of the cavity 1, the clamping interfaces at both ends of the tooling cover plate 4 are respectively clamped to the clamping members at both ends of the cavity 1, and both ends of the tooling cover plate 4 are respectively clamped and fixed to both ends of the cavity 1 to fix the tooling cover plate 4.

[0025] Preferably, the cover plate fixing member 33 is provided with a cover plate fixing member thread for screwing with the screwing member 6. The screwing member 6 passing through the tuning screw rod 5 is screwed with the cover plate fixing member thread of the cover plate fixing member 33, and the screwing member 6 is fixed on the cover plate fixing member 33.

[0026] Preferably, the cover plate fixing member 33 is two cover plate columns 33, and the two cover plate columns 33 are parallel to each other.

[0027] Preferably, the screwing member 6 is a tuning screw 6. During the tuning process, the tuning screw 6 applies a force to the second tuning cover plate 32 upward or downward. When the tuning screw 6 is pulled upward, the second tuning cover plate 32 deforms upward under the drive of the tuning screw 6; when the tuning screw 6 moves downward, the second tuning cover plate 32 deforms downward under the pressing of the screwing member 6.

[0028] In practical applications, such as Figure 1As shown in the figure, specifically, a tuning cover plate 3 covering the cavity opening 11 is provided at the upper end of the cavity 1. The cavity 1 is encapsulated into a sealed structure, so that debris and sundries cannot enter the cavity 1, improving the qualification rate of intermodulation and making the tuning process more stable. The tuning cover plate 3 is provided with a first tuning cover plate 31 at both ends and a second tuning cover plate 32 in the middle. The thickness of the second tuning cover plate 32 is less than that of the first tuning cover plate 31, and the second tuning cover plate 32 is prone to deformation. Both ends of the tooling cover plate 4 are fixed to the upper end of the cavity 1 by fixing screws 7. A screw hole is provided in the tooling cover plate 4, and there is an internal thread in the screw hole. The tuning screw 5 passes through the screw hole of the tooling cover plate 4 and moves up and down along the internal thread. A through hole 51 is provided in the middle of the tuning screw 5, and the through hole 51 at the bottom of the tuning screw 5 becomes narrower. The tuning screw 6 passes through the through hole 51 of the tuning screw 5 and is screwed to the two-cover plate post 33 on the second tuning cover plate 32. During the tuning process, by rotating the tuning screw 5, rotating the tuning screw 5 downward, the tuning screw 5 drives the tuning screw 6 to move downward, and the tuning screw 6 presses down the tuning cover plate 3. At this time, the second tuning cover plate 32 deforms downward, and the frequency of the filter decreases; by rotating the tuning screw 5, rotating the tuning screw 5 upward, the tuning screw 5 pulls and drives the tuning screw 6 to move upward, and the tuning screw 6 pulls up the tuning cover plate 3 tightly. At this time, the second tuning cover plate 32 deforms upward, and the frequency of the filter increases.

[0029] After the debugging is completed, rotate the tuning screw 6 to disassemble the tuning screw 6 from the tuning screw 5, and both ends of the tooling cover plate 4 are separated from the upper end of the cavity 1 respectively. At this time, the tuning screw 5, the tooling cover plate 4 and the tuning screw 6 are separated from the cavity 1 respectively, and the tuning process is completed.

[0030] In summary, the present invention provides a novel debugging structure for a filter, including a filter body and a tuning component. A resonant rod is provided inside the cavity of the filter body, and the tuning cover plate of the tuning component covers the cavity opening of the cavity to form a sealed structure. During the tuning process, the inside of the cavity is not easily affected. The thickness of the second tuning cover plate in the middle of the tuning cover plate is less than the thickness of the second tuning cover plates at both ends of the tuning cover plate. A tuning screw is provided in the tooling cover plate at the upper end of the tuning cover plate. By rotating the tuning screw, the second tuning cover plate in the tuning cover plate deforms upward or downward. When the second tuning cover plate deforms upward, the tuning frequency increases. When the second tuning cover plate deforms upward, the tuning frequency decreases. Thereby, the novel debugging structure of the filter of the present invention realizes changing the tuning frequency, and at the same time improves the qualification rate and stability of intermodulation.

[0031] Of course, the present invention may also have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present invention.

Claims

1. A novel debugging structure of a filter, characterized in that: The invention comprises a filter body and a tuning component, wherein the filter body comprises a cavity, the interior of the cavity is a hollow structure, the upper end of the cavity is provided with a cavity opening, the interior of the cavity is provided with a resonance rod, the tuning component comprises a tuning cover, a tooling cover, a tuning screw and a screw connection, the tuning cover is provided at the upper end of the cavity and covers the cavity opening, the tuning cover comprises a first tuning cover at both ends and a second tuning cover in the middle, the thickness of the second tuning cover is less than the thickness of the first tuning cover, a cover fixing piece is provided in the middle of the second tuning cover, both ends of the tooling cover are fixed to the upper end of the cavity, the tooling cover is provided with a screw hole, the tuning screw passes through the screw hole of the tooling cover and is screwed to the tooling cover, the screw connection passes through the tuning screw and is screwed and fixed to the cover fixing piece.

2. The novel debugging structure of the filter according to claim 1 is characterized in that: A through hole is provided in the middle of the tuning screw rod, and the screw connection piece passes through the through hole of the tuning screw rod and is screwed and fixed with the cover plate fixing piece.

3. The novel debugging structure of the filter according to claim 1 is characterized in that: An internal thread is arranged in the screw hole, and an external thread is arranged on the outer periphery of the tuning screw. The internal thread matches the external thread to screw the tuning screw to the tooling cover plate.

4. The novel debugging structure of the filter according to claim 1 is characterized in that: The two ends of the tooling cover are respectively screwed to the two ends of the cavity.

5. The novel debugging structure of the filter according to claim 4 is characterized in that: The two ends of the tooling cover plate are respectively provided with fixing holes, and the two ends of the cavity are respectively provided with threaded holes corresponding to the fixing holes. Fixing screws pass through the fixing holes and are screwed to the threaded holes to fix the tooling cover plate to the upper end of the cavity.

6. The novel debugging structure of the filter according to claim 1 is characterized in that: Two ends of the tooling cover are respectively clamped at two ends of the cavity.

7. The novel debugging structure of the filter according to claim 6 is characterized in that: The two ends of the tooling cover are respectively provided with card interfaces, and the two ends of the cavity are respectively provided with card connectors corresponding to the card interfaces. The card interfaces at the two ends of the tooling cover are respectively connected to the card connectors at the two ends of the cavity.

8. The novel debugging structure of the filter according to claim 1 is characterized in that: The cover plate fixing piece is provided with a cover plate fixing piece thread, and the cover plate fixing piece thread is used for being threadedly connected with the threaded piece.

9. The novel debugging structure of the filter according to claim 1 is characterized in that: The cover plate fixing parts are two cover plate columns, and the two cover plate columns are parallel to each other.

10. The novel debugging structure of the filter according to any one of claims 1 to 9, characterized in that: The screw connection member is a tuning screw.

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