WO2018036494A1 - 一种用于腔体滤波器的调谐管机构 - Google Patents

一种用于腔体滤波器的调谐管机构 Download PDF

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Publication number
WO2018036494A1
WO2018036494A1 PCT/CN2017/098546 CN2017098546W WO2018036494A1 WO 2018036494 A1 WO2018036494 A1 WO 2018036494A1 CN 2017098546 W CN2017098546 W CN 2017098546W WO 2018036494 A1 WO2018036494 A1 WO 2018036494A1
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WIPO (PCT)
Prior art keywords
bushing
tuning tube
tuning
cavity filter
wall
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Application number
PCT/CN2017/098546
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English (en)
French (fr)
Inventor
罗庆
科霍斯罗维阿巴斯
Original Assignee
凯镭思通讯设备（上海）有限公司
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Application filed by 凯镭思通讯设备（上海）有限公司 filed Critical 凯镭思通讯设备（上海）有限公司
Publication of WO2018036494A1 publication Critical patent/WO2018036494A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/207—Hollow waveguide filters

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a tuning tube mechanism for a cavity filter.
  • a filter is a device used to eliminate interfering noise. It can effectively filter the frequency of a specific frequency or a frequency other than the frequency to obtain a specific frequency or eliminate a specific frequency.
  • one end of the externally threaded tuning screw 2 is inserted into the cavity through the through hole in the cover plate 100, and the tuning screw 2 is fixed on the cover plate with the matching nut 1. .
  • tuning is required, loosen the nut 1 and move the tuning screw 2 up and down to fine-tune the cavity filter. After adjusting, fix the tuning screw 2 to the current position with the nut 1.
  • the existing threaded tuning screw has the problem of easy sliding during the tuning process; and the tuning screw is prone to chipping during the rotation; and because the tuning screw is used to fix the screw, an external force is introduced to facilitate the cover. Disadvantages such as stress deformation.
  • a tuning tube mechanism for a cavity filter coupled to a cover of a cavity filter for performing a tuning function of a cavity filter comprising: a bushing, the bushing being located at a cover of the cavity filter a plate, and an inner wall of the bushing is provided with at least three protrusions; a tuning tube matching the bushing, one end of the tuning tube is a closed end, and the tuning tube passes through the bushing, And engaging with the protrusion and being locked in the bushing.
  • the tuning tube cooperates with the protrusion of the inner wall of the bushing, and the tuning tube is locked in the bushing, and the locking is immediately locked, no need to use additional locking force, the assembly fixing process is reduced, and the use is convenient. No thread locking is used anymore, so the presence of no thread and no tip burrs eliminates the risk of slipping.
  • the circumferential side of the first end of the bushing is provided with a flange which extends outward in the radial direction of the bushing to facilitate welding.
  • the flange on the bushing can ensure that the bushing can be limited when installed in the through hole of the cover plate; secondly, it is convenient for the operator to pick up, assemble and operate conveniently; The design makes this bushing easy to weld to the cover.
  • the projection extends in the axial direction of the bushing, and the projection is provided at the bottom of the inner wall of the bushing.
  • the extending direction of each of the protrusions ensures the fastening effect when the tuning tube is fastened to the bushing.
  • the protrusion at the bottom limits the amount of eccentricity at the lower end of the tuning tube, ensuring the positional accuracy and mechanical stability of the tuning tube.
  • the tuning tube includes: a tuning tube body; a flange surface, the flange surface is disposed at an end of the tuning tube body away from the closed end; the tuning tube body passes through the bushing, and The projections are snap-fitted and locked in the bushing.
  • the setting of the flange surface is convenient for the operator to pick up and control the tuning tube body to move up and down during the tuning and debugging process for tuning and debugging.
  • the tuning tube body is a hollow tube body.
  • the arrangement of the hollow tube body reduces the weight of the tuning tube body, and is advantageous for weight reduction of the radio frequency device when applied to the cavity filter.
  • the tuning tube body is provided with at least one side of the outer side of the outer wall of the flange surface Convex.
  • the protrusion of the inner wall of the bushing limits the eccentricity of the lower end of the tuning tube
  • the convex portion of the tuning tube located at the upper portion of the outer wall limits the eccentricity of the upper portion of the tuning tube
  • the tuning tube body has a polygonal structure.
  • the tuning tube body of the polygonal structure cooperates with the protrusion in the inner wall of the bushing to limit the eccentricity of the upper and lower portions of the tuning tube, thereby ensuring the positional accuracy and mechanical stability of the tuning tube as a whole.
  • a tuning via is provided on the closed end of the tuning tube body.
  • the presence of the tuning via hole facilitates the installation of the medium, thereby providing a mounting position for the installation of the medium, enabling diversified medium tuning.
  • the outer wall of the tuning tube (polygon and/or having a convex portion) cooperates with the protrusion of the inner wall of the bushing to lock the tuning tube in the bushing, and instantly locks, eliminating the need for additional locking force, reducing assembly and fixing processes, and using Convenient, no slip tooth risk, low friction, light weight and low passive intermodulation value. No thread locking is used anymore. Therefore, the absence of threaded teeth and no tip burrs eliminates the risk of sliding teeth.
  • the surface of the tuning tube has a high surface finish, which is suitable for high frequency, high power, low intermodulation applications; and during tuning and debugging, When the tuning tube body is moved up and down, its contact friction surface with the bushing is small, which reduces the risk of debris entering the cavity of the cavity filter.
  • 1 is a schematic exploded view of a prior art tuning tube mechanism
  • FIG. 2 is a schematic structural view of a prior art tuning tube mechanism
  • FIG. 3 is an exploded perspective view showing an embodiment of a tuning tube mechanism for a cavity filter of the present invention. intention;
  • FIG. 4 is a side elevational view of one embodiment of the tuning tube of the present invention.
  • FIG. 5 is a perspective view of another embodiment of the tuning tube of the present invention.
  • Figure 6 is a side elevational view of one embodiment of the bushing of the present invention.
  • Figure 7 is a plan view of an embodiment of the bushing of the present invention.
  • FIG. 8 is a perspective view of another embodiment of the tuning tube of the present invention.
  • FIG. 9 is a perspective view of another embodiment of the tuning tube of the present invention.
  • Figure 10 is a schematic view showing the assembly of an embodiment of a tuning tube mechanism for a cavity filter of the present invention.
  • Figure 11 is a plan view of Figure 10
  • Figure 12 is a cross-sectional view taken along line AA of Figure 11;
  • Figure 13 is a partial enlarged view of the area B in Figure 12;
  • FIG. 14 is a schematic structural view of an embodiment of a cavity filter to which a tuning tube mechanism is applied according to the present invention.
  • Figure 15 is a cross-sectional view of Figure 14.
  • a tuning tube mechanism for a cavity filter is coupled to the cover 100 of the cavity filter for implementing the cavity filter.
  • the cover plate 100 is provided with at least one cover through hole 110 extending through the upper surface of the cover plate toward the lower surface of the cover plate; wherein the upper surface of the cover plate and the lower surface of the cover plate
  • the position of the bushing 200 is matched with the cover through hole 110.
  • the bushing 200 is located in the cover through hole 110 of the cover plate 100 of the cavity filter, and the inner wall of the bushing is provided with at least three protrusions.
  • the tuning tube 300 that matches the bushing 200, one end of the tuning tube is a closed end 311, and the tuning tube 300 passes through the bushing 200, and is engaged with the protrusion 210 and locked in the bushing 200.
  • the protrusion 210 extends in the axial direction of the bushing, and the protrusion 210 is provided at the bottom of the inner wall of the bushing.
  • the through-hole of the cover plate on the cover plate provides a mounting position for the bushing, and a bushing is installed in each of the through-holes of the cover plate.
  • the bushing and the through hole of the cover plate cooperate to match the size of the bushing and the size of the through hole of the cover plate, so as to ensure that the bushing can be fixedly installed in the through hole of the cover plate without being unobstructed;
  • the method of the hole may be welding, snapping, etc., and is not limited herein.
  • the protrusion on the inner wall of the bushing may be an elastic material, a metal material or the like.
  • the projections may be recessed from the outer wall of the bushing toward the inner diameter of the bushing to form a projection having a corresponding recess at the location of the corresponding outer wall of the projection. It is also possible to extend from the inner wall of the bushing toward the inner diameter of the bushing to form a projection, such that the outer wall of the bushing is a smooth outer wall.
  • the projection and the bushing may be integrally formed.
  • the projections extend in the axial direction of the bushing to ensure the fastening effect of the tuning tube when it is fastened to the bushing.
  • the protrusion of the bushing is disposed at the bottom of the inner wall. When the tuning tube is inserted into the bushing, the protrusion at the bottom can limit the eccentricity of the lower end of the tuning tube, ensuring the positional accuracy and mechanical stability of the tuning tube.
  • a tuning tube is inserted into each bushing and mates with the projection in the bushing to lock the tuning tube in the bushing. Therefore, the size of the tuning tube (outer diameter of the tuning tube) needs to be The size of the inner diameter of the raised bushing is matched to ensure that the tuning tube can be properly inserted into the bushing and locked. The size is matched to ensure that the tuning tube is inserted and locked to the bushing, even if it is under strong external impact, it will remain in a tight state, and the tuning tube will not be displaced, thus ensuring the performance of the cavity filter. stable.
  • the length of the tuning tube will be greater than the length of the bushing, so that the tuning tube can move up and down in the bushing, and the specific length is determined according to actual needs.
  • one end of the tuning tube is a closed end, which is to ensure normal tuning when the tuning tube is applied to the cavity filter.
  • the tuning tube when the tuning tube is inserted into the bushing, it can be moved up and down in the direction of a ⁇ b, b ⁇ a in the figure to be tuned, and when it reaches the proper position, it is locked in the bushing.
  • the circumferential side of the first end of the bushing is provided with a flange 220, and the flange 220 is along The radial direction of the bushing extends outwardly to facilitate soldering.
  • the lower surface of the flange is in contact with the upper surface of the cover.
  • the flange on the bushing can ensure that the bushing can be restrained when installed in the through hole of the cover plate; secondly, it is convenient for the operator to pick up, assemble, and operate conveniently.
  • the tuning tube mechanism is applied to the cavity filter, the upper surface of the cover is away from the cavity of the cavity filter cavity, and the first end of the bushing is the end of the bushing near the upper surface of the cover.
  • the tuning tube 300 includes: a tuning tube body 310; a flange surface 320, the flange surface 320 is disposed at an end of the tuning tube body away from the closed end 311; the tuning tube body 310 passes through the bushing 200, is tightly engaged with the protrusion 210, and is locked to the bushing 200 in.
  • the flange face 320 can be hexagonal, circular, semi-circular, or the like.
  • the setting of the flange surface is convenient for the operator to pick up and control the tuning tube body to move up and down during the tuning and debugging process for tuning and debugging.
  • it can be divided into a flange surface and a tuning tube body, and then the two are connected (welded) together; or the flange surface and the tuning tube body can be integrally formed.
  • the flange surface can be a hexagonal flange surface, and the hexagonal flange surface has a large application range in the actual assembly process, and is matched with the hexagonal flange surface.
  • the installation tool makes the tuning tube body easier to be installed in the bushing, and cooperates with the protrusion of the inner wall of the bushing to instantly lock, no need to use additional locking force, greatly reducing the assembly and fixing process, and being convenient and quick to use.
  • the tuning tube body 310 is a hollow tube body.
  • the arrangement of the hollow tube body reduces the weight of the tuning tube body, and is advantageous for weight reduction of the radio frequency device when applied to the cavity filter.
  • a tuning via (not shown) is disposed on the closed end 310 of the tuning tube body.
  • the presence of the tuned vias facilitates the installation of the media, thereby providing a mounting location for the installation of the media for diverse media tuning.
  • the tuning tube body 310 is provided with at least one side of the outer side of the outer wall of the flange surface 320. Projection 312. The convex portion 312 is uniformly distributed in the circumferential direction on the outer wall of the tuning tube body 310.
  • the convex portion may be extended outward from the inner wall of the tuning tube body in the direction of the outer wall, so that the inner wall may have a recess corresponding to the convex portion contour; the convex portion may also be along the outer wall of the tuning tube body. Extending outward in the direction, the inner wall is a smooth inner wall.
  • the convex portion and the tuning tube body may be integrally formed by punching.
  • the upper end of the tuning tube body is provided with a convex portion, which has the same function as the bushing protrusion.
  • the convex portion on the tuning tube body and the protrusion of the bushing cooperate to lock the upper and lower ends. Tight positioning effectively improves the large deviation of the tuning tube.
  • the convex portion of the upper end of the tuning tube body can better control the precision, and the lower end of the bushing is easily deformed during the debugging of the product, resulting in the locking force being deteriorated, and the convex portion of the upper end of the tuning tube body is locked, so There is not too much relative sliding friction at the end, which can improve the locking condition to some extent.
  • the protrusion of the inner wall of the bushing limits the eccentricity of the lower end of the tuning tube, and the convex portion of the tuning tube located at the upper portion of the outer wall limits the eccentricity of the upper portion of the tuning tube, and the use of the two further ensures the overall position of the tuning tube. Accuracy and mechanical stability.
  • FIG. 11 is a plan view of a tuning tube insertion bush having a convex portion
  • FIG. 12 is a cross-sectional view taken along line AA of FIG. 11
  • FIG. 13 is a partial enlarged view of a region B of FIG. 12, and a convex portion of the outer wall of the tuning tube is in position.
  • the upper part of the body is tuned and extends outward from the outer wall of the inner wall, and the protrusion of the bushing extends from the outer wall of the bushing toward the inner wall, so that the convex portion of the outer wall of the tuning tube and the protrusion of the bushing can be clearly seen. Fit, limit the amount of eccentricity in the upper and lower parts of the tuning tube.
  • the tuning tube body has a polygonal structure.
  • the tuning tube body has a hexagonal structure, a trigonal structure, a pentagonal structure, and the like.
  • the tuning tube body may adopt a polygonal structure instead of the convex portion on the outer wall, and the tuning tube body with the polygonal structure cooperates with the protrusion in the inner wall of the bushing to limit the eccentricity of the upper and lower portions of the tuning tube, thereby ensuring the overall tuning tube. Position accuracy and mechanical stability.
  • the edge of the polygon can be directly used to fit the bushing, and the length of the fit can be increased to achieve a relatively stable locking effect.
  • a convex portion is also disposed on the outer wall, and the convex portion is disposed on the tube surface of the polygonal tuning tube body, thereby further ensuring the positional accuracy of the tuning tube as a whole and the mechanism. stability.
  • a cavity filter in another embodiment, as shown in FIGS. 14 and 15, includes: a cavity assembly having an open upper end; an input connector 400 disposed on the cavity assembly and inputting the connector One end is inserted into the cavity assembly; the output connector 500 is disposed on the cavity assembly, one end of the output connector is inserted into the cavity assembly; the cover plate 100 is fixedly mounted at the opening of the cavity assembly, and the cover plate is At least one cover through hole 110 is formed through the cover plate through the upper surface of the cover plate (ie, the side away from the opening of the cavity assembly) toward the lower surface of the cover plate (ie, the opening close to the cavity assembly) The direction of the one side) extends; the bushing 200 cooperates with the through hole 110 of the cover plate, and a bushing is fixedly disposed in a through hole of the cover plate (see FIG.
  • the inner wall of the bushing is provided with at least three protrusions 210; a tuning tube 300 matching the bushing 200, one end of the tuning tube is a closed end 310, and the tuning tube 300 passes through the bushing 200 and is inserted into the cavity assembly And cooperate with the protrusion 210 to be locked in the bushing 200 And the closed end of the bottom plate 310 extending in the direction of the cavity assembly.
  • the tuning tube body of the cavity filter in this embodiment is no longer fixed by using a thread as in the prior art, and is convexly engaged with the bushing (friction, interference) in the inner wall of the bushing.
  • Instant locking for immediate locking eliminating the need for additional locking forces and reducing the fit
  • the probability of deformation of the cover plate due to the extra locking force is reduced, and the use is convenient and quick.
  • the structure of the fixed and adjusted tuning tube body has no screw teeth and no tip burrs, and there is no risk of sliding teeth.
  • the circumferential side of the first end of the bushing is provided with a flange which extends outwardly in the radial direction of the bushing to facilitate welding.
  • the lower surface of the flange i.e., the side of the flange near the upper surface of the cover
  • the cover is in contact with the upper surface of the cover.
  • the flange on the bushing can ensure that the bushing can be restrained when installed in the through hole of the cover plate; secondly, it is convenient for the operator to pick up, assemble, and operate conveniently.
  • the tuning tube mechanism is applied to the cavity filter, the upper surface of the cover plate is away from the opening of the cavity assembly of the cavity filter, and the first end of the bushing is the end of the bushing near the upper surface of the cover plate.
  • the projection 210 extends in the axial direction of the bushing, and the projection 210 is provided at the bottom of the inner wall of the bushing.
  • the position and the extending direction of the protrusion are limited, and the stability of the convex fixed tuning tube is ensured.
  • the tuning tube 300 includes: a tuning tube body 310; a flange surface 320 disposed at an end of the tuning tube body 310 away from the closed end 311;
  • the tube body 310 passes through the bushing, snaps into engagement with the projection, and is locked in the bushing.
  • the upper surface of the flange face i.e., the side of the flange face that is away from the upper surface of the cover plate
  • the flange surface can be a circular flange surface, a semi-circular flange surface, a hexagonal flange surface, and the like.
  • the flange surface provided on the body of the tuning tube is convenient for the operator to pick up and control the tuning tube up and down during the tuning and debugging process.
  • it can be divided into a flange surface and a tuning tube body for production, and then the two are connected (welded) together; or the flange surface and the tuning tube body can be integrally formed.
  • the flange surface can be a hexagonal flange surface, and the hexagonal flange surface has a large application range in the actual assembly process, and the installation tool matched with the hexagonal flange surface is used to make the tuning tube body easier to be mounted on the bushing. In the middle, it cooperates with the protrusion of the inner wall of the bushing, and instantly locks, no need to use additional locking force, which greatly reduces the assembly and fixing process, and is convenient and quick to use.
  • the outer wall of the tuning tube body is no longer provided with a thread.
  • the contact friction surface is small, and the generation of debris into the cavity assembly is greatly reduced.
  • the risk of the cavity; and the outer wall of the tuning tube is not threaded, suitable for high frequency, high power, high intermodulation applications.
  • the tuning tube body is a hollow tube body.
  • the presence of the hollow tube body reduces the weight of the tuning tube body, and is advantageous for weight reduction of the radio frequency device when applied to the cavity filter.
  • a tuning via is provided on the closed end of the tuning tube body.
  • the presence of the tuned vias facilitates the installation of the media, thereby providing a mounting location for the installation of the media for diverse media tuning.
  • the tuning tube body 310 is provided with at least one convex portion 312 near the circumferential side of the outer wall of the flange surface 320.
  • the convex portion 312 is uniformly distributed in the circumferential direction on the outer wall of the tuning tube body 310.
  • the convex portion may be extended outward from the inner wall of the tuning tube body in the direction of the outer wall, so that the inner wall may have a recess corresponding to the convex portion contour; the convex portion may also be along the outer wall of the tuning tube body. Extending outward in the direction, the inner wall is a smooth inner wall.
  • the convex portion and the tuning tube body may be integrally formed by punching.
  • the protrusion of the inner wall of the bushing limits the eccentricity of the lower end of the tuning tube, and the convex portion of the tuning tube located at the upper portion of the outer wall limits the eccentricity of the upper portion of the tuning tube, and the use of the two further ensures the overall position of the tuning tube. Accuracy and mechanical stability.
  • the tuning tube body has a polygonal structure.
  • the tuning tube body has a hexagonal structure, a trigonal structure, a pentagonal structure, and the like.
  • the tuning tube body may adopt a polygonal structure instead of the convex portion on the outer wall, and the tuning tube body with the polygonal structure cooperates with the protrusion in the inner wall of the bushing to limit the eccentricity of the upper and lower portions of the tuning tube, thereby ensuring the overall tuning tube. Position accuracy and mechanical stability.
  • a convex portion may be disposed on the outer wall, thereby further ensuring the positional accuracy and mechanical stability of the tuning tube as a whole.
  • the cavity assembly comprises: The cavity body 610 is provided with an upper end; the cavity body 610 is internally provided with at least one resonant column 620.
  • the resonant column 620 is fixedly disposed on the bottom plate 611 of the cavity body, and the resonant column 620 is opposite to the position of the cover through hole 110.
  • the cavity body 610 and the resonant column 620 are integrally formed.
  • the bottom plate of the cavity body is opposite to the position of the opening of the cavity body.
  • One end of the input connector inserted into the cavity assembly ie, the cavity inserted into the cavity body
  • the resonant column to realize signal transmission
  • the other end of the input connector is exposed on the outer surface of the cavity assembly.
  • one end of the output connector inserted into the cavity assembly ie, the cavity inserted into the cavity body
  • the resonant column is in contact with the resonant column to achieve signal transmission
  • the other end of the output connector is exposed on the outer surface of the cavity assembly.
  • the number of resonant columns can be set according to actual needs.
  • the cavity body can be made It is integrally formed with the resonant column, which is easy to manufacture and easy to promote.
  • the resonant column 620 is further provided with a resonant cavity 621, and the closed end 310 of the tuning tube 300 is inserted into the resonant cavity 621 and extends toward the bottom plate 611 of the cavity body. .
  • tuning is achieved by inserting a tuning tube into the cavity depth to satisfy the practical application of the cavity filter.
  • the coupling body 630 is further disposed inside the cavity body, and is fixedly disposed on the adjacent two resonant columns.
  • the bottom plate 611 of the cavity body between the 620; the cover plate 100 is provided with a coupling through hole, the position of the coupling through hole is opposite to the position of the coupling column 630; the coupling bushing 700 matching the coupling through hole, the coupling bushing
  • the inner wall of the 700 (uniform in the circumferential direction) is provided with a plurality of coupling protrusions;
  • the coupling tuning tube 800 is matched with the coupling bushing, one end of the coupling tuning tube is a coupling closed end, and the coupling tuning tube passes through the coupling bushing and the insertion cavity
  • the inside of the body body cooperates with the coupling protrusion and is locked in the coupling bushing.
  • the coupling closed end extends toward the bottom plate of the cavity body, and
  • the coupling through hole, the coupling bushing and the coupling tuning tube have the same structure as the above-mentioned cover through hole, the bushing and the tuning tube body, and the specific implementation process is also the same, and will not be described in detail herein.
  • the coupling tuning tube body is disposed at a corresponding position directly above the coupling column, and is adjusted to extend into the cavity body The depth of the internal cavity to adjust the coupling amount of the coupling window.
  • the coupling column, the cavity body and the resonance column can be integrally formed.

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Abstract

本发明公开了一种用于腔体滤波器的调谐管机构，与腔体滤波器的盖板连接，用于实现腔体滤波器的调谐功能，包括：衬套，所述衬套位于腔体滤波器的盖板上，且所述衬套的内壁设有至少三个凸起；与所述衬套相匹配的调谐管，所述调谐管的一端为封闭端，所述调谐管穿过所述衬套，且与所述凸起卡紧配合，并被锁紧于所述衬套中。本发明的调谐管与衬套内壁的凸起配合，将调谐管锁紧连接于衬套中，即时锁紧，无须再使用额外锁紧力，减少装配固定工序，使用方便，且无滑牙风险。

Description

一种用于腔体滤波器的调谐管机构 技术领域
本发明涉及通信技术领域，尤其涉及一种用于腔体滤波器的调谐管机构。
背景技术
滤波器是一种用来消除干扰杂讯的器件，可以对特定频率的频点或该频点以外的频率进行有效滤除，得到一个特定频率或消除一个特定频率。
数字革命的出现，使得万维网、卫星广播、移动和长途电话等服务成为可能，现在的无线通信系统的基站为了过滤高频信号，一般会使用空腔滤波器。随着无线通信技术的不断进步，频谱资源日益紧张，对滤波器的各项要求越来越高。因此，腔体滤波器的设计过程中采用了越来越多的调谐管机构，以适应不同客户的需求。调谐管机构是在滤波器生产过程中极其耗费时间的阶段，而且很大程度上会影响滤波器的互调性能。
现有调谐管机构请参见图1、图2，带外螺纹的调谐螺钉2的一端穿过盖板100上的通孔插入空腔内，并用配套的螺母1将调谐螺钉2固定在盖板上。当需要进行调谐时，松开螺母1，上、下移动调谐螺钉2对腔体滤波器进行微调，调好后，再用螺母1将调谐螺钉2固定在当前位置。
现有的螺纹式的调谐螺钉在调谐过程中存在容易滑牙的问题；且调谐螺钉在旋转的过程中也易产生碎屑；以及因要使用螺母固定调谐螺钉，会引入外力从而易让盖板产生应力变形等缺点。
发明内容
本发明的目的是提供一种用于腔体滤波器的调谐管机构，使调谐管机构在调谐过程中不易滑牙，减少碎屑的产生，从而降低碎屑进入腔体滤波器内部腔体的风险。
本发明提供的技术方案如下：
一种用于腔体滤波器的调谐管机构，与腔体滤波器的盖板连接，用于实现腔体滤波器的调谐功能，包括：衬套，所述衬套位于腔体滤波器的盖板上，且所述衬套的内壁设有至少三个凸起；与所述衬套相匹配的调谐管，所述调谐管的一端为封闭端，所述调谐管穿过所述衬套，且与所述凸起卡紧配合，并被锁紧于所述衬套中。
在上述技术方案中，调谐管与衬套内壁的凸起配合，将调谐管锁紧于衬套中，即时锁紧，无须再使用额外锁紧力，减少装配固定工序，使用方便。且不再使用螺纹锁紧，因此，无螺牙、无尖端毛刺的存在，杜绝了滑牙风险。
进一步，所述衬套的第一端的周侧设有翻边，所述翻边沿着所述衬套的径向方向向外延伸以便于焊接。
在上述技术方案中，衬套上的翻边一来可以保证衬套在安装于盖板通孔时可以实现限位；二来也方便操作人员拿起、组装，操作方便；三来翻边的设计使此衬套易于焊接于盖板上。
进一步，所述凸起沿所述衬套的轴线方向延伸，且所述凸起设于所述衬套的内壁的底部。
在上述技术方案中，各凸起的延伸方向保证了调谐管被紧固锁紧于衬套时的紧固效果。位于底部的凸起可以限制调谐管下端偏心量，保证了调谐管的位置精度以及机械稳定性。
进一步，所述调谐管包括：调谐管本体；法兰面，所述法兰面设置于所述调谐管本体远离于所述封闭端的一端；所述调谐管本体穿过所述衬套，与所述凸起卡紧配合，并被锁紧于所述衬套中。
在上述技术方案中，法兰面的设置方便操作人员在调谐调试过程中拿起、控制调谐管本体上下移动进行调谐调试。
进一步，所述调谐管本体为空心管体。
在上述技术方案中，空心管体的设置减轻了调谐管本体的重量，在应用于腔体滤波器时，有利于射频器械的轻量化。
进一步，所述调谐管本体靠近所述法兰面的外壁的周侧设有至少一个 凸部。
在上述技术方案中，衬套内壁的凸起限制调谐管下端偏心量，调谐管位于外壁上部的凸部限制了调谐管上部的偏心量，两者搭配使用进一步保证了调谐管整体的位置精度以及机械稳定性。
进一步，所述调谐管本体为多边形结构。
在上述技术方案中，多边形结构的调谐管本体与衬套内壁中凸起配合，限制调谐管上部及下部的偏心量，保证了调谐管整体的位置精度以及机械稳定性。
进一步，所述调谐管本体的封闭端上设有调谐通孔。
在上述技术方案中，调谐通孔的存在便于安装介质，从而给介质的安装提供了安装位置，实现多样化的介质调谐。
与现有技术相比，本发明的用于腔体滤波器的调谐管机构有益效果在于：
调谐管(多边形和/或具有凸部)的外壁与衬套内壁的凸起配合，将调谐管锁紧于衬套中，即时锁紧，无须再使用额外锁紧力，减少装配固定工序，使用方便，且无滑牙风险、摩擦小、重量轻以及无源互调值低。不再使用螺纹锁紧，因此，无螺牙、无尖端毛刺的存在，杜绝了滑牙风险，调谐管表面光洁度高，适用于高频高功率，低互调应用；且在调谐调试过程中，上下移动调谐管本体时，其与衬套的接触摩擦面小，减小产生碎屑进入腔体滤波器内部腔体的风险。
附图说明
下面将以明确易懂的方式，结合附图说明优选实施方式，对一种用于腔体滤波器的调谐管机构的上述特性、技术特征、优点及其实现方式予以进一步说明。
图1是现有技术调谐管机构的分解结构示意图；
图2是现有技术调谐管机构的结构示意图；
图3是本发明用于腔体滤波器的调谐管机构一个实施例的分解结构示 意图；
图4是本发明调谐管一个实施例的侧视图；
图5是本发明调谐管另一个实施例的立体图；
图6是本发明衬套一个实施例的侧视图；
图7是本发明衬套一个实施例的俯视图；
图8是本发明调谐管另一个实施例的立体图；
图9是本发明调谐管另一个实施例的立体图；
图10是本发明用于腔体滤波器的调谐管机构一个实施例的装配示意图；
图11是图10的俯视图；
图12是图11的AA剖视图；
图13是图12中B区域的局部放大图；
图14是本发明应用调谐管机构的腔体滤波器一个实施例的结构示意图；
图15是图14的剖视图。
附图标号说明：
1.螺母，2.调谐螺钉，100.盖板，110.盖板通孔，200.衬套，210.凸起，220.翻边，300.调谐管，310.调谐管本体，311.封闭端，312.凸部，320.法兰面，400.输入连接器，500.输出连接器，610.腔体本体，611.腔体本体的底板，620.谐振柱，621.谐振腔，630.耦合柱，700.耦合衬套，800.耦合调谐管。
具体实施方式
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对照附图说明本发明的具体实施方式。显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图，并获得其他的实施方式。
为使图面简洁，各图中只示意性地表示出了与本发明相关的部分，它 们并不代表其作为产品的实际结构。另外，以使图面简洁便于理解，在有些图中具有相同结构或功能的部件，仅示意性地绘示了其中的一个，或仅标出了其中的一个。在本文中，“一个”不仅表示“仅此一个”，也可以表示“多于一个”的情形。
在本发明的一个实施例中，如图3、图4所示，一种用于腔体滤波器的调谐管机构，与腔体滤波器的盖板100连接，用于实现腔体滤波器的调谐功能，盖板100贯通开设有至少一个盖板通孔110，盖板通孔从盖板的上表面向盖板的下表面的方向延伸；其中，盖板的上表面和盖板的下表面的位置相对；包括：与盖板通孔110相配合的衬套200，衬套200位于腔体滤波器的盖板100的盖板通孔110内，衬套的内壁设有至少三个凸起210(优选地，各凸起沿着衬套的内壁的圆周方向均匀设置)；与衬套200相匹配的调谐管300，调谐管的一端为封闭端311，所述调谐管300穿过衬套200，且与凸起210卡紧配合，并被锁紧于衬套200中。优选地，所述凸起210沿所述衬套的轴线方向延伸，且所述凸起210设于所述衬套的内壁的底部。
具体的，盖板上的盖板通孔为衬套提供了安装位置，每个盖板通孔中都会安装有一个衬套。
衬套和盖板通孔相配合，是指衬套的尺寸和盖板通孔的尺寸相配合，保证衬套可以无障碍地固定安装于盖板通孔中；固定安装衬套于盖板通孔的方法可以为焊接、卡接等，在此不作限定。衬套内壁上的凸起可以为弹性材料、金属材料等。凸起可以由衬套的外壁向衬套的内径的方向凹陷，从而形成凸起，在凸起对应的外壁的位置上有一个相应的凹槽。也可以从衬套的内壁向衬套的内径的方向延伸，形成凸起，这样的话，衬套的外壁则为光滑的外壁。优选地，凸起和衬套可以一体成型。
各凸起沿衬套的轴线方向延伸，保证了调谐管被紧固锁紧于衬套时的紧固效果。且衬套的凸起设置于内壁的底部，当调谐管播入衬套时，位于底部的凸起可以限制调谐管下端偏心量，保证了调谐管的位置精度以及机械稳定性。
每个衬套内都会插入调谐管，且会跟衬套中的凸起相配合，从而将调谐管锁紧于衬套中，因此，调谐管的尺寸(调谐管的外径)需要与(带有凸起的)衬套的内径的尺寸相配合，保证调谐管可以正常插入到衬套中、并被锁紧。尺寸相配合的设置是为了保证调谐管插入并被紧锁于衬套时，即使在外部大力撞击下，也会保持紧固状态，调谐管不会产生位移，从而保障了腔体滤波器的性能稳定。
调谐管的长度会大于衬套的长度，从而实现调谐管可以在衬套中上下移动，其具体长度根据实际需求决定。另外，调谐管的一端为封闭端，这是为了保证调谐管应用于腔体滤波器时，可以实现正常调谐。
如图10所示，调谐管插入衬套时，可以沿着图中a→b，b→a的方向上下移动进行调谐，当其到达合适位置时便锁紧于衬套中。
在本发明的另一个实施例中，如图3、图6、图7所示，除与上述相同的之外，衬套的第一端的周侧设有翻边220，翻边220沿着衬套的径向方向向外延伸以便于焊接。优选地，翻边的下表面与盖板的上表面接触。
具体的，衬套上的翻边一来可以保证衬套在安装于盖板通孔时可以实现限位；二来也方便操作人员拿起、组装，操作方便。当调谐管机构应用于腔体滤波器时，盖板的上表面为远离于腔体滤波器腔体的一面，而衬套的第一端为衬套靠近盖板的上表面的一端。
在本发明的另一个实施例中，如图3、图4、图5所示，除与上述相同的之外，调谐管300包括：调谐管本体310；法兰面320，所述法兰面320设置于所述调谐管本体远离于所述封闭端311的一端；调谐管本体310穿过所述衬套200，与所述凸起210卡紧配合，并被锁紧于所述衬套200中。优选地，法兰面320可以为六边形、圆形、半圆形等。
具体的，法兰面的设置方便操作人员在调谐调试过程中拿起、控制调谐管本体上下移动进行调谐调试。在实际生产调谐管本体的过程中，可以分为法兰面和调谐管本体，再将两者连接(焊接)在一起形成；或者，法兰面和调谐管本体也可以一体成型。优选地，法兰面可以为六角法兰面，六角法兰面在实际装配过程中应用范围较大，且使用与六角法兰面配套的 安装工具，使调谐管本体更容易被安装于衬套中，与衬套内壁的凸起配合，即时锁紧，无须再使用额外锁紧力，大大减少了装配固定工序，使用方便、快捷。
可选的，如图4所示，调谐管本体310为空心管体。
具体的，空心管体的设置减轻了调谐管本体的重量，在应用于腔体滤波器时，有利于射频器械的轻量化。
可选的，调谐管本体的封闭端310上设有调谐通孔(图中未示出)。
具体的，调谐通孔的存在便于安装介质，从而给介质的安装提供了安装位置，实现多样化的介质调谐。
在本发明的另一个实施例中，除与上述相同的之外，如图3、图4、图5所示，调谐管本体310靠近所述法兰面320的外壁的周侧设有至少一个凸部312。凸部312沿着圆周方向均匀分布于调谐管本体310的外壁。
具体的，凸部可以由调谐管本体的内壁向外壁的方向向外延伸所得，这样的话，内壁就会存在和凸部轮廓相对应的凹陷；凸部也可以由调谐管本体的外壁沿着径向方向向外延伸，这时内壁为光滑的内壁。优选地，凸部和调谐管本体可以通过冲压方式一体成型。
调谐管本体上端增加凸部，与衬套凸起功能效果相同，但对于长度较长的调谐管装配的情况，调谐管本体上的凸部和衬套的凸起相配合，起到上下端锁紧定位，有效改善调谐管同轴偏差较大的情况。
调谐管本体上端的凸部工艺上能更好的控制精度，由于衬套下端凸起在产品调试过程中容易变形，导致锁紧力变差，增加的调谐管本体上端的凸部锁紧，因此端不会有过多的相对滑动摩擦，可以一定程度上改善锁紧不良的情况。
当调谐管插入衬套时，衬套内壁的凸起限制调谐管下端偏心量，调谐管位于外壁上部的凸部限制了调谐管上部的偏心量，两者搭配使用进一步保证了调谐管整体的位置精度以及机械稳定性。
如图11所示，是具有凸部的调谐管插入衬套的俯视图，图12是图11的AA剖视图，图13是图12中B区域的局部放大图，调谐管外壁的凸部是位 于调谐本体上部，且从内壁处外壁向外延伸所得，而衬套的凸起是从衬套的外壁向内壁方向延伸所得，可以清楚地看到调谐管外壁的凸部和衬套的凸起配合，限制调谐管上部和下部的偏心量。
优选地，如图8、图9所示，调谐管本体为多边形结构。例如：调谐管本体为六边形结构、三边形结构、五边形结构等。
具体的，调谐管本体可以采用多边形结构来代替外壁上的凸部，采用多边形结构的调谐管本体与衬套内壁中凸起配合，限制调谐管上部及下部的偏心量，保证了调谐管整体的位置精度以及机械稳定性。对于多边形结构，能直接使用多边形的棱边与衬套配合，增长配合长度，达到较为稳定的锁紧效果，
在其他实施例中，调谐管本体采用了多边形结构后，也会在外壁上设置凸部，此凸部是设置于多边形调谐管本体的管面上，从而进一步保证调谐管整体的位置精度以及机械稳定性。
在本发明的另一个实施例中，如图14、15所示，一种腔体滤波器，包括：上端开口的腔体组件；输入连接器400，设置于腔体组件上，输入连接器的一端插入腔体组件内部；输出连接器500，设置于腔体组件上，输出连接器的一端插入腔体组件内部；盖板100，固定安装于腔体组件的开口处，且盖板的板面上贯通开设有至少一个盖板通孔110，盖板通孔从盖板的上表面(即，远离于腔体组件的开口的一面)向盖板的下表面(即，靠近腔体组件的开口的一面)的方向延伸；与盖板通孔110相配合的衬套200，一个衬套固定设置于一个盖板通孔中(安装后的结构示意图请参见图15)，并向腔体组件内部延伸，且衬套的内壁设有至少三个凸起210；与衬套200相匹配的调谐管300，调谐管的一端为封闭端310，调谐管300穿过衬套200、插入腔体组件内部，且与凸起210配合被锁紧于衬套200中，且封闭端310向腔体组件的底板方向延伸。
具体的，本实施例中的腔体滤波器的调谐管本体不再像现有技术一样利用螺纹来进行固定，而采用与衬套(摩擦、过盈)配合的方式，在衬套内壁的凸起配合下实现即时锁紧，不再需要使用额外的锁紧力，减少了装 配固定工序，降低了盖板因额外的锁紧力而发生变形的概率，使用方便、快捷。另外，这种固定、调节调谐管本体的结构无螺牙的存在，也无尖端毛刺，不会存在滑牙风险。
优选地，衬套的第一端的周侧设有翻边，翻边沿着衬套的径向方向向外延伸以便于焊接。优选地，翻边的下表面(即，翻边靠近盖板的上表面的一面)与盖板的上表面接触。
具体的，衬套上的翻边一来可以保证衬套在安装于盖板通孔时可以实现限位；二来也方便操作人员拿起、组装，操作方便。当调谐管机构应用于腔体滤波器时，盖板的上表面为远离于腔体滤波器的腔体组件开口的一面，而衬套的第一端为衬套靠近盖板的上表面的一端。
优选地，凸起210沿所述衬套的轴线方向延伸，且所述凸起210设于所述衬套的内壁的底部。
具体的，对凸起的位置和延伸方向进行了限制，保证了凸起固定调谐管的稳定性。
在本发明的另一个实施例中，调谐管300包括：调谐管本体310；法兰面320，所述法兰面320设置于所述调谐管本体310远离于所述封闭端311的一端；调谐管本体310穿过所述衬套，与所述凸起卡紧配合，并被锁紧于所述衬套中。当调谐管本体安装于衬套时，法兰面的上表面(即法兰面远离于盖板的上表面的一面)高于盖板的上表面。法兰面可以为圆形法兰面、半圆形法兰面、六角法兰面等。
具体的，调谐管本体上设置的法兰面，方便操作人员在调谐调试过程中拿起、控制调谐管上下调节。在实际生产调谐管的过程中，可以分为法兰面和调谐管本体进行生产，再将两者连接(焊接)在一起形成；或者，法兰面和调谐管本体也可以一体成型。优选地，法兰面可以为六角法兰面，六角法兰面在实际装配过程中应用范围较大，且使用与六角法兰面配套的安装工具，使调谐管本体更容易被安装于衬套中，与衬套内壁的凸起配合，即时锁紧，无须再使用额外锁紧力，大大减少了装配固定工序，使用方便、快捷。
另外，由于衬套内壁凸起的存在，调谐管本体的外壁不再设置螺纹，在上下移动调谐管本体的调谐调试过程中，接触摩擦面小，大大减小了产生碎屑进入腔体组件内部腔体的风险；且调谐管本体外壁不设有螺纹，适用于高频高功率、高互调的应用。
可选的，调谐管本体为空心管体。
具体的，空心管体的存在减轻了调谐管本体的重量，在应用于腔体滤波器时，有利于射频器械的轻量化。
可选的，调谐管本体的封闭端上设有调谐通孔。
具体的，调谐通孔的存在便于安装介质，从而给介质的安装提供了安装位置，实现多样化的介质调谐。
在本发明的另一个实施例中，除与上述相同的之外，调谐管本体310靠近所述法兰面320的外壁的周侧设有至少一个凸部312。凸部312沿着圆周方向均匀分布于调谐管本体310的外壁。
具体的，凸部可以由调谐管本体的内壁向外壁的方向向外延伸所得，这样的话，内壁就会存在和凸部轮廓相对应的凹陷；凸部也可以由调谐管本体的外壁沿着径向方向向外延伸，这时内壁为光滑的内壁。优选地，凸部和调谐管本体可以通过冲压方式一体成型。
当调谐管插入衬套时，衬套内壁的凸起限制调谐管下端偏心量，调谐管位于外壁上部的凸部限制了调谐管上部的偏心量，两者搭配使用进一步保证了调谐管整体的位置精度以及机械稳定性。
优选地，如图8、图9所示，调谐管本体为多边形结构。例如：调谐管本体为六边形结构、三边形结构、五边形结构等。
具体的，调谐管本体可以采用多边形结构来代替外壁上的凸部，采用多边形结构的调谐管本体与衬套内壁中凸起配合，限制调谐管上部及下部的偏心量，保证了调谐管整体的位置精度以及机械稳定性。
在其他实施例中，调谐管本体采用了多边形结构后，也可以在外壁上设置凸部，从而进一步保证调谐管整体的位置精度以及机械稳定性。
在本发明的另一个实施例中，除与上述相同的之外，腔体组件包括： 设有上端开口的腔体本体610；腔体本体610内部设有至少一个谐振柱620，谐振柱620固定设置于腔体本体的底板611上，且谐振柱620与盖板通孔110的位置相对。优选地，腔体本体610和谐振柱620一体成型。
具体的，腔体本体的底板与腔体本体的开口的位置相对。输入连接器插入腔体组件内部(即，插入腔体本体内部的腔体)的一端与谐振柱接触，实现信号的传输；输入连接器的另一端裸露于腔体组件的外表面。同理，输出连接器插入腔体组件内部(即，插入腔体本体内部的腔体)的一端与谐振柱接触，实现信号的传输，输出连接器的另一端裸露于腔体组件的外表面。谐振柱的数量可以根据实际需要设置，若只有一个谐振柱，即为单腔滤波器；若有两个谐振柱，即为双腔滤波器……在制造腔体组件时，可以让腔体本体和谐振柱一体成型，制造方便，易于推广。
在本发明的另一个实施例中，除与上述相同的之外，谐振柱620还设有谐振腔621，调谐管300的封闭端310插入谐振腔621，并向腔体本体的底板611方向延伸。
具体的，通过调谐管插入谐振腔深度的变化来实现调谐，满足腔体滤波器的实际应用。
在本发明的另一个实施例中，除与上述相同的之外，当谐振柱的数量为两个及以上时，腔体本体内部还设有耦合柱630，固定设置于相邻两个谐振柱620之间的腔体本体的底板611上；盖板100上设有耦合通孔，耦合通孔的位置与耦合柱630的位置相对；与耦合通孔相配合的耦合衬套700，耦合衬套700的内壁(沿圆周方向均匀)设有多个耦合凸起；与耦合衬套相配套的耦合调谐管800，耦合调谐管的一端为耦合封闭端，耦合调谐管穿过耦合衬套、插入腔体本体内部，与耦合凸起配合，并被锁紧于耦合衬套中，耦合封闭端向腔体本体的底板方向延伸，耦合封闭端与耦合柱之间形成了耦合窗口。
具体的，耦合通孔、耦合衬套和耦合调谐管与上述盖板通孔、衬套和调谐管本体的结构相同，具体实施过程也相同，在此不再详细描述。耦合调谐管本体设置在耦合柱的正上方对应的位置，通过调节其伸入腔体本体 内部腔体的深度，来调节耦合窗口的耦合量。在生产过程中，耦合柱、腔体本体和谐振柱可以一体成型。
应当说明的是，上述实施例均可根据需要自由组合。以上仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (8)

  1. 一种用于腔体滤波器的调谐管机构，与腔体滤波器的盖板连接，用于实现腔体滤波器的调谐功能，其特征在于，包括：
    衬套，所述衬套位于腔体滤波器的盖板上，且所述衬套的内壁设有至少三个凸起；
    与所述衬套相匹配的调谐管，所述调谐管的一端为封闭端，所述调谐管穿过所述衬套，且与所述凸起卡紧配合，并被锁紧于所述衬套中。
  2. 如权利要求1所述的用于腔体滤波器的调谐管机构，其特征在于：
    所述衬套的第一端的周侧设有翻边，所述翻边沿着所述衬套的径向方向向外延伸以便于焊接。
  3. 如权利要求1所述的用于腔体滤波器的调谐管机构，其特征在于：
    所述凸起沿所述衬套的轴线方向延伸，且所述凸起设于所述衬套的内壁的底部。
  4. 如权利要求1所述的用于腔体滤波器的调谐管机构，其特征在于，所述调谐管包括：
    调谐管本体；
    法兰面，所述法兰面设置于所述调谐管本体远离于所述封闭端的一端；
    所述调谐管本体穿过所述衬套，与所述凸起卡紧配合，并被锁紧于所述衬套中。
  5. 如权利要求4所述的用于腔体滤波器的调谐管机构，其特征在于：
    所述调谐管本体为空心管体。
  6. 如权利要求4所述的用于腔体滤波器的调谐管机构，其特征在于：
    所述调谐管本体靠近所述法兰面的外壁的周侧设有至少一个凸部。
  7. 如权利要求4所述的用于腔体滤波器的调谐管机构，其特征在于：
    所述调谐管本体为多边形结构。
  8. 如权利要求4所述的用于腔体滤波器的调谐管机构，其特征在于：
    所述调谐管本体的封闭端上设有调谐通孔。
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CN206076466U (zh) * 2016-08-23 2017-04-05 凯镭思通讯设备（上海）有限公司 一种用于腔体滤波器的调谐管机构

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WO2015051520A1 (zh) * 2013-10-10 2015-04-16 华为技术有限公司 滤波器及应用其的通信模块
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