TWI898329B - Testing structure and filter thereof - Google Patents

Abstract

The present disclosure provides a testing structure and a filter thereof. The testing structure comprises a cover plate and a testing component. The cover plate has a fixing portion. The testing component comprises a fixing component and a testing rod. The fixing component is fixed on the fixing portion. The fixing component has a plurality of fixing elements and ring elements. The plurality of fixing elements is arranged at intervals under the ring element. The ring element and a plurality of fixing elements form a perforation. The width of the inner diameter of the perforation from the ring element to the plurality of fixed elements gradually becomes smaller. One end of the testing rod is inserted into the hole from the ring element. The plurality of fixing elements is urgently fixed on the peripheral side of the testing rod. The testing structure of this application is used for filters. When the testing rod of the present application passes through the plurality of fixing elements, the plurality of fixing elements are stretched outwards, and at the same time, they are pressed and fixed by the contraction of the plurality of fixing elements.

Description

Debug structure and its filter

This application relates to the technical field of communications, and more particularly to a debugging structure and a filter thereof.

In existing technologies, the resonator rod of a cavity filter is placed within the cavity. The top of the cavity has a cover plate with a threaded hole machined into it. The adjusting screw has matching threads around the hole. These threads engage, allowing the screw to extend into the resonator rod's inner hole within the cavity. The adjusting screw's position is adjusted by rotating the thread up and down. Users can adjust the height of one end of the adjusting screw within the resonator as needed, thereby changing the resonant frequency. However, because the threaded structure of the adjustment screw and the cover plate doesn't completely secure them, the cover plate can still rotate upwards away from the oscillating rod, or downwards towards it. Therefore, the current challenge is to effectively secure the adjustment screw and cover plate, while also allowing for easy adjustment of the distance between the adjustment screw and the oscillating rod.

The present application provides an adjustment structure that can solve the problem that the adjustment screw and the cover plate cannot be fixed in place because the distance between the adjustment screw and the harmonic vibration rod can be simply adjusted in order to achieve the upper and lower displacement adjustment.

In order to solve the above technical problems, this application is implemented as follows:

A first aspect provides a debugging structure comprising a cover plate and a debugging assembly. The cover plate has a fixing portion. The debugging assembly includes a fixing sleeve and a debugging rod. The fixing sleeve is fixed to the fixing portion and comprises a plurality of fixing members and a ring. The plurality of fixing members are spaced below the ring. The ring and the plurality of fixing members form a through-hole, the inner diameter of the through-hole gradually decreasing from the ring to the plurality of fixing members. One end of the debugging rod is inserted through the ring into the through-hole, and the peripheral edge of the debugging rod is tightly fixed by the plurality of fixing members.

In the debugging structure of this application, the inner wall of the through hole has a first thread, and the outer wall of the debugging head of the debugging rod has a second thread, and the second thread is screwed into the first thread.

In the adjustment structure of this application, the first thread has a taper in the axial direction of the fixing assembly; the second thread has a consistent diameter in the axial direction of the adjustment rod, and the axes of the fixing assembly and the adjustment rod coincide.

In the debugging structure of this application, the debugging rod has an debugging head and an debugging rod, and the outer diameter of the debugging head is larger than the outer diameter of the debugging rod.

In the debugging structure of the present application, the fixing portion further includes a first fixing groove and a fixing hole. The fixing hole is located at the bottom of the first fixing groove. The fixing members of the fixing assembly are accommodated and fixed in the first fixing groove. The debugging rod portion of the debugging rod passes through the fixing hole.

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 hole diameter of the fixing hole.

In the debugging structure of the present application, the fixing portion further includes a second fixing groove, the first fixing groove is located at the groove 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.

In the debugging structure of this application, the fixing kit and the fixing portion are fixed by pressing, screwing or bonding.

In the debugging structure of the present application, the inner wall of the first fixing groove of the fixing portion has a third thread, and the outer walls of the fixing members of the fixing assembly have a fourth thread, and the fourth thread is screwed into the third thread.

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 ring range, 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 fixing parts.

In the debugging structure of this application, the ring has a ring opening, and the fixing members are arranged at intervals along the edge of the ring opening.

In the debugging structure of the present application, the ring further includes a guide edge, and the guide edge is located around the ring opening.

In the debugging structure of this application, the fixing parts of the fixing kit are bendable relative to the ring part.

A second aspect provides a filter having the debugging structure of the first aspect, comprising a housing and a resonant rod. The housing has a receiving slot, and the resonant rod is disposed within the receiving slot. A cover plate covers the receiving slot, a fixed portion corresponds to the resonant rod, and a fixing assembly maintains the height of the debugging rod relative to the resonant rod. The debugging rod moves up and down within the fixing assembly to adjust the height.

In the embodiment of the present application, the fixing member is fixed to the fixing portion of the cover plate by a fixing kit. The fixing kit has a plurality of fixing members and rings. The plurality of fixing members are spaced apart and arranged below the rings. The rings and the plurality of fixing members form a through-hole. The inner diameter width of the through-hole gradually decreases from the rings to the plurality of fixing members. When the adjusting rod passes through the plurality of fixing members of the fixing kit, the adjusting rod pushes the plurality of fixing members outward. At the same time, the adjusting rod is also tightly fixed by the inward contraction of the plurality of fixing members. In this way, the fixing kit can maintain the height position of the adjusting rod relative to the cover plate, and the adjusting rod will not be displaced when not subjected to external forces.

The following clearly and completely describes the technical solutions in the embodiments of this application, in conjunction with the accompanying figures. Obviously, the described embodiments represent only a portion of the embodiments of this application, but not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of this application without inventive effort are also within the scope of protection of this application.

Please refer to Figures 1 to 5, which are three-dimensional views of a debugging structure according to the first embodiment of this application; Figure 2 is a cross-sectional view taken along line A-A' in Figure 1; Figure 3 is an exploded cross-sectional view taken along line A-A' in Figure 1; Figure 4 is an exploded three-dimensional view of the debugging structure; and Figure 5 is another exploded three-dimensional view of the debugging structure. As shown in the figures, this embodiment provides a debugging structure 1 that can be used in radio frequency structures such as filters, duplexers, combiners, tower amplifiers, etc. The debugging structure 1 includes a cover 11 and a debugging assembly 12. The cover 11 has a fixing portion 111. The debugging assembly 12 includes a fixing kit 121 and a debugging rod 122. The fixing kit 121 is fixed to the fixing portion 111 and includes a plurality of fixing members 1211 and a ring 1212. The fixing members 1211 are spaced apart below the ring 1212. The ring 1212 and the fixing members 1211 form a through-hole 1210. The inner diameter W of the through-hole 1210 gradually decreases from the ring 1212 to the fixing members 1211 (i.e., the inner diameter gradually decreases). One end of the debugging rod 122 is inserted through the ring 1212 into the through-hole 1210, and the circumference of the debugging rod 122 is tightly secured by the fixing members 1211. In this embodiment, the position of the test rod 122 is fixed by the plurality of fixing members 1211 of the fixing assembly 121. In some embodiments, the fixing assembly 121 is a single component, and the plurality of fixing members 1211 and the ring member 1212 are integrally formed, thereby having a simple structure and good reliability.

Referring again to FIG. 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. The fixing assembly 121 includes a plurality of fixing members 1211 received and fixed within the first fixing groove 1111. The adjusting rod 122 includes an adjusting head 1221 and an adjusting rod portion 1222. The outer diameter of the adjusting head 1221 is 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. The adjusting rod portion 1222 and the fixing hole 1110 are spaced apart, resulting in no friction between them. Furthermore, the fixing portion 111 further includes a second fixing groove 1112. The first fixing groove 1111 is 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. Specifically, the bottom of the second fixing groove 1112 has the notch of the first fixing groove 1111 in the middle. In other words, the bottom of the second fixing groove 1112 is a flat surface surrounding the notch of the first fixing groove 1111.

When the fixing member 121 is assembled into the first fixing groove 1111 and the second fixing groove 1112 of the fixing portion 111, the outer side of the ring 1212 of the fixing member 121 is received and fixed in the second fixing groove 1112, while the plurality of fixing members 1211 of the fixing member 121 are received and fixed in the first fixing groove 1111. The ring 1212 of the fixing member 121 has a ring opening 12120, and the plurality of fixing members 1211 are spaced along the edge of the ring opening 12120. This allows the plurality of fixing members 1211 of the fixing member 121 to bend relative to the ring 1212. In this embodiment, the fixing member 121 has four fixing members 1211 (see FIG. 5 ). The fixing assembly 121 of this embodiment does not limit the number of fixing members 1211. As long as there are at least two fixing members 1211, the fixing assembly 121 can be fixed closely to the debugging head 1221 of the debugging rod 122 through the plurality of fixing members 1211.

In addition, the diameter of the ring 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 ring opening 12120. The guide edge 12121 is a beveled edge corresponding to the ring opening 12120, and the guide edge 12121 helps guide the adjusting rod portion 1222 of the adjusting rod 122 toward the ring 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 assembly 121. The through-hole 1210 corresponding to the ring 1212 has a first inner diameter width W1, and the through-hole 1210 corresponding to the plurality of fixing elements 1211 has a second inner diameter width W2. The adjusting head portion 1221 of the adjusting rod 122 has an outer diameter D that is less than or equal to the first inner diameter width W1 of the through-hole 1210 corresponding to the ring 1212, and greater than or equal to the second inner diameter width W2 of the through-hole 1210 corresponding to the plurality of fixing elements 1211.

In this embodiment, the adjusting rod portion 1222 of the adjusting rod 122 is not restricted by the inner diameter of the through hole 1210 of the fixing assembly 121 and can pass through directly. The adjusting head portion 1221 of the adjusting rod 122 can just pass through the through hole 1210 corresponding to the range of the ring 1212 until the adjusting head portion 1221 of the adjusting rod 122 passes through the plurality of fixing members 1211. The adjusting head portion 1221 is restrained inward by the plurality of fixing members 1211, that is, the outer diameter D of the adjusting head portion 1221 of the adjusting rod 122 is Because the second inner diameter width W2 of the through hole 1210 is greater than or equal to the range corresponding to the multiple fixing members 1211, the adjusting head 1221 of the adjusting rod 122 needs to push the multiple fixing members 1211 outward to deform. At the same time, the adjusting head 1221 of the adjusting rod 122 will also be tightened and fixed inward by the reaction force of the multiple fixing members 1211. While the plurality of fixing members 1211 are held inwardly, tightly securing the adjusting head 1221 of the adjusting rod 122, the adjusting rod 122 is inserted into the fixing hole 1110 of the first fixing slot 1111. The plurality of fixing members 1211 maintain the height of the adjusting head 1221 of the adjusting rod 122 through friction. In other words, the adjusting head 1221 of the adjusting rod 122, when not subject to external forces, will not become loose or displaced due to the weight or structural issues of the adjusting rod 122 itself. When the user needs to adjust the height of the adjusting rod 122 relative to the cover plate 11 , the user only needs to apply a force greater than the static friction force of the plurality of fixing members 1211 on the adjusting rod 122 , and the user can directly adjust the adjusting rod 122 to move up and down in the fixing assembly 121 .

Furthermore, referring back to Figure 2, when the adjusting rod 122 is adjusted within the fixing assembly 121, the fixing assembly 121 and the adjusting rod 122 are tightly fixed via their contact surfaces. The upward and downward movement of the adjusting rod 122 causes friction between the fixing assembly 121 and the adjusting rod 122, thereby generating friction debris or metal wire. This friction debris or metal wire then falls into the first fixing groove 1111 located below the fixing assembly 121. The fixing hole 1110 of the first fixing groove 1111 is precisely sealed by the adjusting rod portion 1222 of the adjusting rod 122. This prevents friction debris or metal wire from falling into the inner side of the cover plate 11 when adjusting the height of the adjusting rod 122.

Please refer to Figure 6, which is a cross-sectional view of the adjustment structure of the second embodiment of this application. As shown in the figure, this embodiment differs from the first embodiment in the fixing structure between the fixing assembly 121 and the adjustment rod 122. In this embodiment, the inner wall of the through-hole 1210 of the fixing assembly 121 has a first thread 1213, and the outer wall of the adjustment head 1221 of the adjustment rod 122 has a second thread 1223, which is threadedly engaged with the first thread 1213. In some embodiments, the first thread 1213 has a gradually decreasing diameter in the axial direction of the fixing assembly 121; alternatively, the first thread 1213 has a taper in the axial direction of the fixing assembly 121. In some embodiments, the second thread 1223 has a uniform diameter along the axis of the adjustment rod 122; alternatively, the second thread 1223 does not have a taper along the axis of the adjustment rod 122, and the axis of the fixing assembly 121 coincides with the axis of the adjustment rod 122. As the second thread 1223 engages with the first thread 1213, the plurality of fixing members 1211 are gradually stretched apart, undergoing elastic deformation. The elastic restoring force of the plurality of fixing members 1211 is applied to the adjustment head 1221, thereby tightly securing the adjustment rod 122. The fixing assembly 121 of this embodiment, through its threaded structure and the tight fixation of multiple fixing members 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 assembly 121 of this embodiment can easily cause friction and generate debris or wire. This embodiment further utilizes the bottom of the first fixing groove 1111 of the previously described embodiment to receive frictional debris or wire, thereby facilitating the use of the adjustment mechanism 1.

Please refer to Figure 7, which is a cross-sectional view of the debugging structure of the second embodiment of this application. As shown in the figure, this embodiment differs from the first embodiment in the fixing structure of the fixing assembly 121 and the fixing portion 111 of the cover plate 11. In this embodiment, the inner wall of the first fixing groove 1111 of the fixing portion 111 has a third thread 1113. The fixing assembly 121 has a plurality of fixing members 1211 received and fixed on the outer wall of the first fixing groove 1111. The fourth thread 1214 is screwed into the third thread 1113. In this way, the fixing members 1211 of the fixing assembly 121 are fixed in the first fixing groove 1111. Furthermore, the fixing method between the fixing member 121 and the first fixing groove 1111 of the fixing portion 111 of this embodiment can be achieved through a variety of methods, including press-fitting, screwing, or bonding. These fixing methods can be adjusted based on user needs. The threaded structure between the fixing member 121 and the first fixing groove 1111 of the cover plate 11 of this embodiment can easily generate debris or wires due to friction. This embodiment further utilizes the bottom of the first fixing groove 1111 of the aforementioned embodiment to receive these debris or wires, facilitating the use of the debugging structure 1.

Please refer to Figures 8 and 9. Figure 8 is a perspective view of the filter of this application, and Figure 9 is a cross-sectional view taken along line B-B' in Figure 8. As shown in the figures, this embodiment provides a filter 2 having the aforementioned debugging 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 within the receiving groove 210. The cover 11 covers the receiving groove 210, and the fixing hole 1110 of the fixing portion 111 corresponds to the resonant rod 22. In this embodiment, the fixing assembly 121 includes a plurality of fixing members 1211 extending toward the resonant rod 22. The fixing assembly 121 is located on the exterior side of the cover 11, while the resonant rod 22 is located on the interior side of the cover 11. The fixing members 1211 of the fixing assembly 121 align with the fixing portion 111 of the cover 11, facing toward the resonant rod 22. The fixing assembly 121 maintains the height H of the tuning rod 122 relative to the resonant rod 22. The tuning rod 122 moves up and down within the fixing assembly 121 to adjust the height H of the tuning rod portion 1222 relative to the resonant rod 22, thereby achieving frequency (or coupling) tuning.

In summary, the present application provides a debugging structure and a filter therefor. The debugging structure is fixed to a fixed portion of a cover plate via a fixing kit. The fixing kit includes a plurality of fixing members and a ring member. The plurality of fixing members are spaced 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. When the adjusting rod passes through the plurality of fixing members of the fixing kit, the adjusting rod pushes the plurality of fixing members outward. At the same time, the adjusting rod is also tightly fixed by the inward contraction of the plurality of fixing members. In this way, the fixing kit can maintain the height position of the adjusting rod relative to the cover plate, and the adjusting rod will not be displaced when not subjected to external forces.

It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

The above describes the implementation of this application in conjunction with the accompanying drawings, but this application is not limited to the above-mentioned specific implementation. The above-mentioned specific implementation is only illustrative and not restrictive. Ordinary technical personnel in this field can make many forms inspired by this application without departing from the scope of protection of the purpose and claims of this application, all of which fall within the scope of protection of this application.

1: Debugging Structure 11: Cover 111: Fixing Port 1110: Fixing Hole 1111: First Fixing Slot 1112: Second Fixing Slot 1113: Third Thread 12: Debugging Assembly 121: Fixing Kit 1210: Through Hole 1211: Fixing Part 1212: Ring 12120: Ring Mouth 12121: Guide Edge 1213: First Thread 1214: Fourth Thread 122: Debugging Rod 1221: Debugging Head 1222: Debugging Rod 1223: Second Thread 2: Filter 21: Housing 210: Receiving Slot 22: Harmonic Oscillator Rod D: Outer diameter W1: First inner diameter width W2: Second inner diameter width H: Height

The accompanying figures described herein are intended to provide a further understanding of this application and constitute a part of this application. The schematic embodiments of this application and their descriptions are intended to explain this application and do not constitute undue limitations of this application. Among the accompanying figures: Figure 1 is a perspective view of the debugging structure of the first embodiment of this application. Figure 2 is a cross-sectional view taken along line A-A' in Figure 1. Figure 3 is an exploded cross-sectional view taken along line A-A' in Figure 1. Figure 4 is an exploded perspective view of the debugging structure of the first embodiment of this application. Figure 5 is another exploded perspective view of the debugging structure of the first embodiment of this application. Figure 6 is a cross-sectional view of the debugging structure of the second embodiment of this application. Figure 7 is a cross-sectional view of the debugging structure of the third embodiment of this application. Figure 8 is a perspective view of the filter of this application. Figure 9 is a cross-sectional view taken along line B-B’ in Figure 8.

1: Test structure 111: Fixing portion 1110: Fixing hole 1111: First fixing slot 1112: Second fixing slot 121: Fixing assembly 1210: Through hole 1211: Fixing element 1212: Ring 122: Test rod 1221: Test head 1222: Test rod D: Outer diameter W1: First inner diameter width W2: Second inner diameter width

Claims (13)

A debugging structure is characterized by comprising: a cover having a fixing portion; and a debugging assembly including a fixing kit and an adjusting rod. The fixing kit is fixed to the fixing portion, the fixing kit having a plurality of fixing members and a ring. The fixing members are spaced below the ring. The ring and the fixing members form a through-hole. The inner diameter of the through-hole gradually decreases from the ring to the fixing members. One end of the adjusting rod is inserted into the through-hole through the ring. The peripheral edge of the adjusting rod is tightly fixed by the fixing members. The fixing members of the fixing kit are bendable relative to the ring. The debugging structure as described in claim 1, wherein the debugging rod has a debugging head and an debugging rod, and the outer diameter of the debugging head is larger than the outer diameter of the debugging rod. The debugging structure as described in claim 2, wherein the inner wall of the through hole has a first thread, and the outer wall of the debugging head of the debugging rod has a second thread, and the second thread is screwed into the first thread. The adjustment structure as described in claim 3, wherein the first thread has a taper in the axial direction of the fixing assembly; the second thread has a consistent diameter in the axial direction of the adjustment rod, and the axis of the fixing assembly coincides with the axis of the adjustment rod. The debugging structure as described in claim 2, wherein the fixing portion further includes a first fixing groove and a fixing hole, the fixing hole is located at the bottom of the first fixing groove, the fixing parts of the fixing kit are accommodated and fixed in the first fixing groove, and the debugging rod portion of the debugging rod passes through the fixing hole. The debugging structure as described in claim 5, wherein the outer diameter of the debugging rod portion of the debugging rod is less than or equal to the hole diameter of the fixing hole. The debugging structure as described in claim 5, wherein the fixing portion 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. The debugging structure as described in claim 7, wherein the fixing kit and the fixing portion are fixed by pressing, screwing or bonding. As described in claim 8, the debugging structure, wherein the inner wall of the first fixing groove of the fixing portion has a third thread, and the outer walls of the fixing parts of the fixing kit have a fourth thread, and the fourth thread is screwed into the third thread. The adjustment structure as described in claim 2, wherein the outer diameter of the adjustment head of the adjustment rod is less than or equal to the inner diameter width of the through hole corresponding to the ring range, and the outer diameter of the adjustment head of the adjustment rod is greater than or equal to the inner diameter width of the through hole corresponding to the fixing parts. The debugging structure as described in claim 1, wherein the ring has a ring opening, and the fixing members are arranged at intervals along the edge of the ring opening. The debugging structure as claimed in claim 11, wherein the ring further includes a guide edge located around the ring opening. A filter having a tuning structure as described in any one of claims 1 to 12, comprising: a housing having a receiving slot; and a harmonic oscillation rod disposed in the receiving slot; wherein the cover plate covers the receiving slot, the fixing portion corresponds to the harmonic oscillation rod, the tuning rod is maintained at a height relative to the harmonic oscillation rod by the fixing assembly, and the tuning rod is adjusted by moving up and down within the fixing assembly.