Debugging structures and filters therefor

Abstract

The application discloses a debugging structure and a filter thereof. The debugging structure comprises a cover plate and a debugging component. The cover plate has a fixing portion. The debugging component comprises a fixing sleeve and a debugging rod. The fixing sleeve is fixed to the fixing portion. The fixing sleeve has a plurality of fixing members and a ring member. The plurality of fixing members are arranged at intervals below the ring member. The ring member and the plurality of fixing members form a through hole. The inner diameter of the through hole gradually decreases from the ring member to the plurality of fixing members. One end of the debugging rod is inserted into the through hole from the ring member. The side of the debugging rod is fixed by the plurality of fixing members. The debugging structure is used for the filter. When the debugging rod passes through the plurality of fixing members, the plurality of fixing members are expanded outward, and the debugging rod is fixed by the plurality of fixing members.

Description

Technical Field

[0001] This application relates to the field of communication technology, and more particularly to a debugging structure and its filter. Background Technology

[0002] In existing technology, the resonant rod of a cavity filter is housed within a cavity, with a cover plate at the top. A threaded hole is machined on the cover plate, and the adjusting screw has a matching threaded hole on its circumference. The two are screwed together to allow the screw to extend into the inner hole of the resonant rod within the cavity. The adjusting screw's position is adjusted by rotating it up and down, allowing the user to adjust the height of one end of the adjusting screw within the resonator, thereby changing the resonant frequency. However, because the threaded structure of the adjusting screw and cover plate cannot completely fix them in place, two situations still occur: the cover plate rotates upwards away from the resonant rod, and the adjusting screw rotates downwards towards the resonant rod. Therefore, how to effectively ensure that the adjusting screw and cover plate are fixed in place while simultaneously allowing for simple adjustment of the distance between the adjusting screw and the resonant rod is the problem that needs to be solved. Summary of the Invention

[0003] This application provides a debugging structure that solves the problem that existing screw and cover plate cannot be fixed in place because the distance between the screw and the resonant rod cannot be easily adjusted to achieve simple up and down displacement.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] A first aspect provides a cavity filter comprising: a cover plate and a tuning assembly. The cover plate has a fixing portion. The tuning assembly includes a fixing sleeve and a tuning rod. The fixing sleeve is fixed to the fixing portion and has multiple fixing members and a ring member. The multiple fixing members are spaced apart below the ring member, and the ring member and the multiple fixing members form a through hole. The inner diameter of the through hole gradually decreases from the ring member to the multiple fixing members. One end of the tuning rod is inserted into the through hole through the ring member, and the periphery of the tuning rod is tightly fixed by the multiple fixing members.

[0006] In the debugging structure of this application, the inner wall of the perforation has a first thread, and the outer wall of the debugging head of the debugging rod has a second thread, the second thread being screwed into the first thread.

[0007] In the debugging structure of this application, the first thread has a taper in the axial direction of the fixing kit; the second thread has the same diameter in the axial direction of the debugging rod, and the fixing kit coincides with the axis of the debugging rod.

[0008] In the debugging structure of this application, the debugging rod has a debugging head and a debugging rod portion, and the outer diameter of the debugging head is larger than the outer diameter of the debugging rod portion.

[0009] In the debugging structure of this application, the fixing part further includes a first fixing groove and a fixing hole. The fixing hole is located at the bottom of the first fixing groove. The plurality of fixing members of the fixing kit are accommodated and fixed in the first fixing groove. The debugging rod part of the debugging rod passes through the fixing hole.

[0010] In the debugging structure of this application, the outer diameter of the debugging rod portion of the debugging rod is less than or equal to the diameter of the fixing hole.

[0011] In the debugging structure of this application, the fixing part further includes a second fixing groove, the first fixing groove is located at the bottom of the second fixing groove, and the outer side of the ring of the fixing kit is accommodated and fixed in the second fixing groove.

[0012] In the debugging structure of this application, the fixing kit and the fixing part are fixed by tight fixing, screw fixing or adhesive fixing.

[0013] In the debugging structure of this application, the inner wall of the first fixing groove of the fixing part has a third thread, and the outer wall of the plurality of fixing members of the fixing kit has a fourth thread, which is screwed into the third thread.

[0014] In the debugging structure of this application, the outer diameter of the debugging head of the debugging rod is less than or equal to the inner diameter width of the through hole corresponding to the range of the ring member, and the outer diameter of the debugging head of the debugging rod is greater than or equal to the inner diameter width of the through hole corresponding to the range of the plurality of fasteners.

[0015] In the debugging structure of this application, the ring member has a ring opening, and the plurality of fixing members are spaced apart along the edge of the ring opening.

[0016] In the debugging structure of this application, the ring further includes a guide edge, which is located around the ring opening.

[0017] In the debugging structure of this application, the plurality of fasteners of the fixing kit are bendable relative to the ring.

[0018] The second aspect provides a filter having the tuning structure described in the first aspect, comprising a housing and a resonant rod. The housing has a receiving groove. The resonant rod is disposed within the receiving groove; wherein a cover plate covers the receiving groove, a fixing part corresponds to the resonant rod, and the tuning rod is maintained at a height position relative to the resonant rod by the fixing kit, the tuning rod moving up and down within the fixing kit to adjust the height position.

[0019] In this embodiment, the adjusting rod is fixed to the fixing part of the cover plate by a fixing kit. The fixing kit has multiple fixing members and a ring member. The multiple fixing members are spaced apart under the ring member. The ring member and the multiple fixing members form a through hole. The inner diameter of the through hole gradually decreases from the ring member to the multiple fixing members. When the adjusting rod passes through the multiple fixing members of the fixing kit, the adjusting rod pushes the multiple fixing members outward. At the same time, the adjusting rod is also tightly fixed by the inward contraction of the multiple fixing members. In this way, the fixing kit can maintain the height position of the adjusting rod relative to the cover plate. The adjusting rod will not be displaced when it is not subjected to external force. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a perspective view of the debugging structure of the first embodiment of this application.

[0022] Figure 2 yes Figure 1 A cross-sectional view of line segment A-A'.

[0023] Figure 3 yes Figure 1 Exploded cross-sectional view of line segment A-A'.

[0024] Figure 4 This is an exploded perspective view of the debugging structure of the first embodiment of this application.

[0025] Figure 5 This is another exploded perspective view of the debugging structure of the first embodiment of this application.

[0026] Figure 6 This is a cross-sectional view of the debugging structure of the second embodiment of this application.

[0027] Figure 7 This is a cross-sectional view of the debugging structure of the third embodiment of this application.

[0028] Figure 8 This is a three-dimensional view of the filter described in this application.

[0029] Figure 9 yes Figure 8 A cross-sectional view of line segment B-B'.

[0030] The following description is based on the attached drawings: 1: Debugging structure; 11: Cover plate; 111: Fixing part; 1110: Fixing hole; 1111: First fixing groove; 1112: Second fixing groove; 1113: Third thread; 12: Debugging assembly; 121: Fixing kit; 1210: Through hole; 1211: Fixing piece; 1212: Ring piece; 12120: Ring opening; 12121: Guide edge; 1213: First thread; 1214: Fourth thread; 122: Debugging rod; 1221: Debugging head; 1222: Debugging rod part; 1223: Second thread; 2: Filter; 21: Housing; 210: Receiving groove; 22: Resonant rod; D: Outer diameter; W1: First inner diameter width; W2: Second inner diameter width; H: Height position. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figures 1 to 5 This is a perspective view of the debugging structure according to the first embodiment of this application. Figure 2 yes Figure 1 Sectional view of line segment A-A' Figure 3 yes Figure 1 Exploded section view of line segment A-A' Figure 4 It is an exploded 3D view of the debugging structure and Figure 5This is another exploded perspective view of the debugging structure. As shown in the figure, this embodiment provides a debugging structure 1, which can be used in radio frequency structures such as filters, duplexers, combiners, tower-top amplifiers, etc. The debugging structure 1 includes a cover plate 11 and a debugging assembly 12. The cover plate 11 has a fixing part 111. The debugging assembly 12 includes a fixing kit 121 and a debugging rod 122. The fixing kit 121 is fixed to the fixing part 111. The fixing kit 121 has multiple fixing members 1211 and a ring member 1212. The multiple fixing members 1211 are spaced apart under the ring member 1212. The ring member 1212 and the multiple fixing members 1211 form a through hole 1210. The inner diameter width W of the through hole 1210 gradually decreases from the ring member 1212 to the multiple fixing members 1211 (i.e., the inner diameter width gradually decreases from large to small). One end of the debugging rod 122 is inserted into the through hole 1210 from the ring member 1212. The periphery of the debugging rod 122 is tightly fixed by the multiple fixing members 1211. Thus, in this embodiment, the position of the adjustment rod 122 is fixed by multiple fasteners 1211 of the fixing kit 121. In some embodiments, the fixing kit 121 is a single part, and the multiple fasteners 1211 and the ring 1212 are integrally formed, resulting in a simple structure and good reliability.

[0033] Please refer to the following: Figure 3 In this embodiment, the fixing portion 111 of the cover plate 11 further includes a first fixing groove 1111 and a fixing hole 1110. The fixing hole 1110 is located at the bottom of the first fixing groove 1111, and a plurality of fixing members 1211 of the fixing kit 121 are accommodated and fixed within the first fixing groove 1111. The adjusting rod 122 has an adjusting head 1221 and an adjusting rod portion 1222, the outer diameter of the adjusting head 1221 being larger than the outer diameter of the adjusting rod portion 1222. The adjusting rod portion 1222 of the adjusting rod 122 passes through the fixing hole 1110, wherein the outer diameter of the adjusting rod portion 1222 of the adjusting rod 122 is less than or equal to the diameter of the fixing hole 1110. In some embodiments, the outer diameter of the adjusting rod portion 1222 of the adjusting rod 122 is slightly smaller than the diameter of the fixing hole 1110, and the adjusting rod portion 1222 and the fixing hole 1110 are clearance-fitted, and no friction is generated between them. Furthermore, the fixing part 111 further includes a second fixing groove 1112, with the first fixing groove 1111 located at the bottom of the second fixing groove 1112. Thus, the first fixing groove 1111 and the second fixing groove 1112 form a stepped groove, that is, the bottom of the second fixing groove 1112 has the opening of the first fixing groove 1111 in the middle. In other words, the bottom of the second fixing groove 1112 is the plane around the opening of the first fixing groove 1111.

[0034] When the fixing kit 121 is assembled into the first fixing groove 1111 and the second fixing groove 1112 of the fixing part 111, the outer side of the ring 1212 of the fixing kit 121 is accommodated and fixed in the second fixing groove 1112, while the plurality of fixing members 1211 of the fixing kit 121 are accommodated and fixed in the first fixing groove 1111. The ring 1212 of the fixing kit 121 has an annular opening 12120, and the plurality of fixing members 1211 are spaced apart along the edge of the annular opening 12120, thus the plurality of fixing members 1211 of the fixing kit 121 are bendable relative to the ring 1212. In this embodiment, the fixing kit 121 has four fixing members 1211 (see [link to documentation]). Figure 5 The fixing kit 121 in this embodiment does not limit the number of fixing members 1211. There can be at least two fixing members 1211, so that the fixing kit 121 can be close to the adjustment head 1221 of the fixing adjustment rod 122 through multiple fixing members 1211.

[0035] Furthermore, the diameter of the annular opening 12120 of the ring 1212 is the same as or larger than the outer diameter D of the adjusting head of the adjusting rod 122. The ring 1212 further includes a guide edge 12121 located around the annular opening 12120. The guide edge 12121 is a bevel corresponding to the annular opening 12120, which helps guide the adjusting rod portion 1222 of the adjusting rod 122 into the annular opening 12120 of the ring 1212. The outer diameter of the adjusting head 1221 of the adjusting rod 122 is larger than the outer diameter of the adjusting rod portion 1222 of the adjusting rod 122. The adjusting rod portion 1222 of the adjusting rod 122 first passes through the through hole 1210 of the fixing kit 121. The first inner diameter width of the through hole 1210 within the range of the ring 1212 is W1, and the second inner diameter width of the through hole 1210 within the range of the plurality of fixing members 1211 is W2. The outer diameter D of the adjustment head 1221 of the adjustment rod 122 is less than or equal to the first inner diameter width W1 of the perforation 1210 within the range of the ring 1212, and the outer diameter D of the adjustment head 1221 of the adjustment rod 122 is greater than or equal to the second inner diameter width W2 of the perforation 1210 within the range of the multiple fasteners 1211.

[0036] In this embodiment, the adjustment rod portion 1222 of the adjustment rod 122 is not limited by the inner diameter of the through hole 1210 of the fixing kit 121 and passes directly through. The adjustment head 1221 of the adjustment rod 122 can just pass through the through hole 1210 corresponding to the range of the ring member 1212 until the adjustment head 1221 of the adjustment rod 122 passes through the multiple fixing members 1211. At this point, the adjustment head 1221 is restricted by the inward abutment of the multiple fixing members 1211. That is, the outer diameter D of the adjustment head 1221 of the adjustment rod 122 is greater than or equal to the second inner diameter width W2 of the through hole 1210 corresponding to the range of the multiple fixing members 1211. This causes the adjustment head 1221 of the adjustment rod 122 to deform the multiple fixing members 1211 outward. At the same time, the adjustment head 1221 of the adjustment rod 122 is also tightly fixed by the inward contraction of the reaction force of the multiple fixing members 1211. With the adjustment head 1221 of the adjustment rod 122 tightly fixed by the retraction of multiple fasteners 1211, the adjustment rod portion 1222 of the adjustment rod 122 is inserted into the fixing hole 1110 of the first fixing groove 1111. In this way, the multiple fasteners 1211 can maintain the height position of the adjustment head 1221 of the adjustment rod 122 through friction. In other words, the adjustment head 1221 of the adjustment rod 122 will not loosen or displace due to the weight of the adjustment rod 122 itself or structural problems when no external force is applied. When the user needs to adjust the height position of the adjustment rod 122 relative to the cover plate 11, the user only needs to apply a force greater than the static friction force of the multiple fasteners 1211 on the adjustment rod 122, and the user can directly adjust the adjustment rod 122 to move up and down within the fixing kit 121.

[0037] Please refer to the following: Figure 2 When the adjustment rod 122 is positioned on the fixing kit 121, the fixing kit 121 and the adjustment rod 122 are tightly fixed together by a contact surface. The up-and-down movement of the adjustment rod 122 causes friction between the fixing contact surfaces, generating friction debris or metal wires. These debris or metal wires fall into the first fixing groove 1111 located below the fixing kit 121, and the fixing hole 1110 of the first fixing groove 1111 is sealed by the adjustment rod portion 1222 of the adjustment rod 122. This avoids the problem of friction debris or metal wires falling into the inside of the cover plate 11 due to adjusting the height of the adjustment rod 122.

[0038] Please see Figure 6Figure 1 is a cross-sectional view of the debugging structure according to the second embodiment of this application. As shown, the difference between this embodiment and the first embodiment lies in the fixing structure between the fixing kit 121 and the debugging rod 122. In this embodiment, the inner wall of the through hole 1210 of the fixing kit 121 has a first thread 1213, and the outer wall of the debugging head 1221 of the debugging rod 122 has a second thread 1223, which is screwed into the first thread 1213. In some embodiments, the diameter of the first thread 1213 in the axial direction of the fixing kit 121 is tapered; or, the first thread 1213 has a taper in the axial direction of the fixing kit 121. In some embodiments, the diameter of the second thread 1223 in the axial direction of the debugging rod 122 is the same; or, the second thread 1223 does not have a taper in the axial direction of the debugging rod 122, and the axes of the fixing kit 121 and the debugging rod 122 coincide. As the second thread 1223 engages with the first thread 1213, the multiple fasteners 1211 are gradually stretched open and undergo elastic deformation. The elastic restoring force of the multiple fasteners 1211 is applied to the adjustment head 1221, thereby tightly fixing the adjustment rod 122. In this embodiment, the fixing kit 121, through a threaded structure and the tight fixing of the multiple fasteners 1211, can better adjust and fix the height of the adjustment rod 122 relative to the cover plate 11. Furthermore, the threaded structure between the adjustment rod 122 and the fixing kit 121 in this embodiment makes it easier to generate debris or metal wires through friction. This embodiment further utilizes the bottom of the first fixing groove 1111 from the aforementioned embodiment to collect the frictional debris or metal wires, which is beneficial for the use of the adjustment structure 1.

[0039] Please see Figure 7 Figure 1 is a cross-sectional view of the debugging structure according to the second embodiment of this application. As shown in the figure, the difference between this embodiment and the first embodiment lies in the fixing structure of the fixing kit 121 and the fixing part 111 of the cover plate 11. In this embodiment, the inner wall of the first fixing groove 1111 of the fixing part 111 has a third thread 1113, and the plurality of fixing members 1211 of the fixing kit 121 are accommodated and fixed on the outer wall of the first fixing groove 1111 with a fourth thread 1214, which is screwed into the third thread 1113. In this way, the plurality of fixing members 1211 of the fixing kit 121 are fixed in the first fixing groove 1111. In addition, the fixing method between the fixing kit 121 and the first fixing groove 1111 of the fixing part 111 can be by means of tight fixing, screw fixing or adhesive fixing, etc., and the above fixing methods can be adjusted according to the user's needs. In this embodiment, the threaded structure between the fixing kit 121 and the first fixing groove 1111 of the cover plate 11 makes it easier to generate debris or metal wires through friction. This embodiment can further utilize the bottom of the first fixing groove 1111 of the aforementioned embodiment to receive the debris or metal wires generated by friction, which is beneficial to the use of the adjustment structure 1.

[0040] Please see Figure 8 and Figure 9 , Figure 8 This is a three-dimensional view of the filter in this application and Figure 9 yes Figure 8 A cross-sectional view of line segment B-B'. As shown in the figure, this embodiment provides a filter 2, which has the aforementioned tuning structure 1. The filter 2 includes a housing 21 and a resonant rod 22. The housing 21 has a receiving groove 210, and the resonant rod 22 is disposed in the receiving groove 210. The cover plate 11 covers the receiving groove 210, and the fixing hole 1110 of the fixing part 111 corresponds to the resonant rod 22. In this embodiment, the fixing kit 121 has multiple fixing members 1211 extending toward the resonant rod 22. The fixing kit 121 is located on the outside of the cover plate 11, and the resonant rod 22 is located on the inside of the cover plate 11. The multiple fixing members 1211 of the fixing kit 121 are combined and fixed with the fixing part 111 of the cover plate 11 in the direction toward the resonant rod 22. The adjustment rod 122 is maintained at a height position H relative to the resonant rod 22 by the fixing kit 121. The adjustment rod 122 moves up and down within the fixing kit 121 to adjust the height position H of the adjustment rod part 1222 relative to the resonant rod 22, thus realizing the frequency (or coupling) adjustment function.

[0041] In summary, this application provides a debugging structure and its filter. The debugging structure is fixed to the fixing part of the cover plate by a fixing kit. The fixing kit has multiple fixing members and a ring member. The multiple fixing members are spaced apart under the ring member. The ring member and the multiple fixing members form a through hole. The inner diameter of the through hole gradually decreases from the ring member to the multiple fixing members. When the debugging rod passes through the multiple fixing members of the fixing kit, the debugging rod pushes the multiple fixing members outward. At the same time, the debugging rod is also tightly fixed by the inward contraction of the multiple fixing members. In this way, the fixing kit can maintain the height position of the debugging rod relative to the cover plate. The debugging rod will not be displaced when it is not subjected to external force.

[0042] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0043] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms fall within the scope of protection of this application.

Claims

1. A debugging structure, characterized in that, Include: Cover plate, having a fixing part; and A debugging assembly includes a fixing kit and a debugging rod. The fixing kit is fixed to the fixing part. The fixing kit has multiple fixing members and a ring member. The multiple fixing members are spaced apart below the ring member. The ring member and the multiple fixing members form a through hole. The inner diameter of the through hole gradually decreases from the ring member to the multiple fixing members. One end of the debugging rod is inserted into the through hole through the ring member. The periphery of the debugging rod is tightly fixed by the multiple fixing members. The debugging rod has a debugging head and a debugging rod portion. The outer diameter of the debugging head is larger than the outer diameter of the debugging rod portion. The fixing part further includes a first fixing groove and a fixing hole. The fixing hole is located at the bottom of the first fixing groove. The multiple fixing members of the fixing kit abut inward against the debugging head and are accommodated and fixed in the first fixing groove. The debugging rod portion of the debugging rod passes through the fixing hole. The outer diameter of the debugging rod portion of the debugging rod is slightly smaller than the diameter of the fixing hole.

2. The debugging structure as described in claim 1, characterized in that, The inner wall of the perforation has a first thread, and the outer wall of the debugging head of the debugging rod has a second thread, which engages with the first thread.

3. The debugging structure as described in claim 2, characterized in that, The first thread has a taper in the axial direction of the fixing kit; the second thread has the same diameter in the axial direction of the adjusting rod, and the fixing kit coincides with the axis of the adjusting rod.

4. The debugging structure as described in claim 1, characterized in that, The fixing part further includes a second fixing groove, the first fixing groove is located at the bottom of the second fixing groove, and the outer side of the ring of the fixing kit is accommodated and fixed in the second fixing groove.

5. The debugging structure as described in claim 4, characterized in that, The fixing kit and the fixing part are fixed by means of tight fastening, screwing, or adhesive bonding.

6. The debugging structure as described in claim 5, characterized in that, The inner wall of the first fixing groove of the fixing part has a third thread, and the outer wall of the plurality of fixing members of the fixing kit has a fourth thread, which engages with the third thread.

7. The debugging structure as described in claim 1, characterized in that, The outer diameter of the adjustment head of the adjustment rod is less than or equal to the inner diameter of the through hole corresponding to the ring member range, and the outer diameter of the adjustment head of the adjustment rod is greater than or equal to the inner diameter of the through hole corresponding to the plurality of fastener ranges.

8. The debugging structure as described in claim 1, characterized in that, The ring has an opening, and the plurality of fasteners are spaced apart along the edge of the opening.

9. The debugging structure as described in claim 8, characterized in that, The ring further includes a guide edge located around the ring opening.

10. The debugging structure as described in claim 1, characterized in that, The plurality of fasteners of the fastening kit are bendable relative to the ring.

11. A filter having a tuning structure as described in any one of claims 1 to 10, characterized in that, include: The outer casing has a receiving groove; as well as A resonant rod is disposed within the receiving groove; The cover plate covers the receiving groove, the fixing part corresponds to the resonant rod, the adjustment rod is maintained at a height position relative to the resonant rod by the fixing kit, and the adjustment rod moves up and down within the fixing kit to adjust the height position.

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