TW202410541A - Resonant rod and radio frequency wave filter - Google Patents

Abstract

This present invention relates to a resonant rod and a radio frequency wave filter. The resonant rod comprises a tube structure and a plate structure, an opening of the top of the tube structure is positioned with a tube tank, the bottom of the tube tank is connected with a connecting hole; the plate structure is circularly connected around the top of the tube structure, the bottom of the plate structure is connected to an outer surface of the tube structure through stiffening ribs, multiple stiffening ribs are placed, the multiple stiffening ribs are evenly placed on the edge of the tube structure.

Description

Resonance rods and RF filters

The present invention relates to the technical field of communication filters, for example, to a resonant rod and a radio frequency filter.

Resonance rod is a necessary part used in aviation radio and television communication base station equipment, also known as vibrator, reflection rod, resonator, resonant column, etc. The resonant rod includes a cylinder and a flip plate fixedly connected to the cylinder. The setting of the flip plate can reduce the frequency and improve the power.

In the previous technology, the traditional resonator rod is formed by a stretching process. The diameter of the turning plate is larger and the material thickness is thinner. This causes the resonator rod to be easily deformed during stretch molding, electroplating and transportation, which in turn affects the frequency and the debugging screw. "Advance" and "vacation" are not conducive to mass production of resonant rods.

The present invention provides a harmonic oscillator and a radio frequency filter to enhance the strength and rigidity of the harmonic oscillator, reduce the risk of distortion and deformation of the harmonic oscillator, and thus improve the reliability of the work.

The present invention provides a harmonic vibration rod, comprising a cylinder and a flap; a cylinder groove is provided at the top of the cylinder, and a connecting hole is passed through the bottom of the cylinder groove; the flap is connected to the top of the cylinder, and the bottom of the flap is fixedly connected to the outer wall of the cylinder through a reinforcing rib, and the reinforcing ribs are provided in plurality, and the plurality of reinforcing ribs are evenly arranged at intervals on the edge of the cylinder.

The present invention provides a radio frequency filter, which includes a support base, a bearing platform and the above-mentioned resonance rod. The support base and the resonance rod are respectively installed on the bearing platform, and the support base and the resonance rod are connected through a tap. The pieces are connected.

In the description of the present invention, unless otherwise expressly stipulated and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body. ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements. Those with ordinary knowledge in the art can understand the specific meanings of the above terms in the present invention on a case-by-case basis.

In the present invention, unless otherwise expressly stipulated and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features. Not in direct contact but through additional characteristic contact between them. Furthermore, the terms "above", "above" and "above" the first feature of the second feature include the first feature being directly above and diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "beneath" the second feature includes the first feature directly below and diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

The technical means of the present invention will be further described below in conjunction with the drawings and through specific implementations.

As shown in FIG. 1 and FIG. 2 , the present embodiment provides a harmonic vibration rod 100, comprising a barrel 110 and a flap 120; a barrel groove 101 is provided at the top of the barrel 110, and a connecting hole 102 is passed through the bottom of the barrel groove 101; the flap 120 is connected to the top of the barrel 110, and the bottom of the flap 120 is fixedly connected to the outer wall of the barrel 110 through a reinforcing rib, and a plurality of reinforcing ribs are provided, and the plurality of reinforcing ribs are evenly spaced and arranged at the edge of the barrel 110.

The harmonious vibrator 100 ensures smooth operation of the harmonious vibrator 100 by means of the arrangement of the cylinder 110 and the flap 120; by arranging the reinforcing ribs, the strength and rigidity of the harmonious vibrator 100 can be enhanced without affecting the frequency of the harmonious vibrator 100, and the risk of distortion and deformation of the harmonious vibrator 100 can be reduced, thereby improving the reliability of the operation and the product competitiveness of the harmonious vibrator 100.

In this embodiment, the flap 120 is an annular plate, and the reinforcing ribs are fixed to the lower plate surface of the flap 120. The above structural improvement is simple and reliable, simplifies the structure of the flap 120, optimizes the layout of the cylinder 110 and the flap 120, reduces the space occupied by the harmonic vibration rod 100, and reduces the difficulty of processing the harmonic vibration rod 100.

For example, the barrel groove 101 is cylindrical, the overall thickness of the barrel 110 is uniform, the thickness of the barrel 110 is the same everywhere, and multiple reinforcing ribs are evenly arranged around the axis of the barrel 110. The above design is simple and reliable, which not only ensures the smooth operation of the harmonic vibration rod 100, but also ensures that multiple reinforcing ribs are evenly distributed.

The overall thickness of the cylinder 110 is uniform and the design of the flap 120 as an annular plate avoids the stress unevenness caused by the wall thickness difference at different locations on the harmonic vibration rod 100, and further reduces the risk of distortion and deformation of the harmonic vibration rod 100.

In this embodiment, the reinforcing rib forms a rib groove 121, and the rib groove 121 is connected to the groove top of the cylinder groove 101.

For example, the groove depth of the rib groove 121 gradually increases from the edge of the rib groove 121 to the center of the rib groove 121. For example, the thickness of the reinforcing rib is equal everywhere.

The provision of the rib groove 121 can facilitate the stretching and forming of the reinforcing rib without affecting the frequency of the harmonic oscillator 100, reduce the difficulty of processing the reinforcing rib, and ensure that the thickness of the harmonic oscillator 100 is uniform at all locations.

In this embodiment, the cylinder 110 and the turning plate 120 are integrally formed. The one-piece design greatly simplifies the production process of the resonant rod 100, improves the processing efficiency, and reduces the production cost.

In this embodiment, by adjusting the design of the processing mold of the harmonic vibration rod 100, a structure corresponding to the reinforcing rib is added at the stretching part of the mold, which not only enables the harmonic vibration rod 100 to be directly stretched and formed through the stretching process, but also ensures that the reinforcing ribs on the harmonic vibration rod 100 are smoothly formed.

For example, this embodiment can be applied to the processing of 0.6 mm thick plates. For example, the plates required for processing metal materials can be thinner, and the specific thickness is determined by the production personnel. The above processing method can save the amount of plate molding material of the resonance rod 100 without increasing the size of the parts, thereby reducing the weight of the resonance rod 100.

For example, three reinforcing ribs are provided. In other embodiments of this embodiment, two, four, five, six, etc. reinforcing ribs are provided, and the specific number is determined by the production personnel. The selection method is common knowledge in the relevant field and is mastered by those with ordinary knowledge in the relevant technical field, so it will not be elaborated here.

As shown in FIG. 3 , the present embodiment further provides a radio frequency filter, including a support base 220, a support platform 260 and the above-mentioned resonant rod 100. The support base 220 and the resonant rod 100 are both mounted on the support platform 260, and the support base 220 and the resonant rod 100 are connected via a tap.

The RF filter has a simple and reliable structure, stable operation and low production cost, and can successfully complete the filtering operation of radio signals.

In this embodiment, a receiving cavity 261 is provided at the top of the supporting platform 260, the supporting seat 220 is inserted into the receiving cavity 261, and a sealing ring 230 is sandwiched between the supporting seat 220 and the supporting platform 260, a connector 210 is fixedly connected to the supporting seat 220, and the supporting seat 220 is connected to the external component through the connector 210; the tap piece includes a first tap piece 240 and a second tap piece 250, the first tap piece 240 is connected to the supporting seat 220, the second tap piece 250 is connected to the harmonic vibration rod 100, and the first tap piece 240 is connected to the second tap piece 250.

For example, the material of the bearing platform 260 is metal or plastic.

For example, the support platform 260 is matched and connected with the connecting hole 102 on the harmonic vibration rod 100. For example, the connecting hole 102 is located in the middle of the bottom of the barrel groove 101. The above design ensures that the harmonic vibration rod 100 is stably fixed on the support platform 260.

The above design is not only suitable for RF filters, but also can be used in duplexers, combiners or tower amplifiers.

As shown in FIG. 4 , the resonant rod 100 of this embodiment is basically the same as the above-mentioned embodiment. The difference between the two is that the edge ring of the turning plate 120 is provided with a bending edge 122 , and the bending edge 122 is bent downward.

The above structural improvements can adjust the working effect of the harmonic oscillator 100 without affecting the frequency of the harmonic oscillator 100, so that the harmonic oscillator 100 can be applied to a specific working environment.

This embodiment also provides a radio frequency filter, including a support base, a carrier platform and the above-mentioned harmonic oscillator rod, the support base and the harmonic oscillator rod are both installed on the carrier platform, and the support base and the harmonic oscillator rod are connected through a tap plate.

As shown in FIG. 5 , the harmonic oscillator 100 of this embodiment is substantially the same as the above-mentioned embodiment, and the difference between the two is that a protrusion 111 is convexly provided at the bottom of the barrel groove 101 , and the protrusion 111 forms a protrusion groove 112 , and the protrusion groove 112 is connected to the barrel groove 101 through the connecting hole 102 .

The above structural improvements can adjust the working effect of the resonant rod 100 without affecting the frequency of the resonant rod 100, so that the resonant rod 100 can be used in specific working environments.

This embodiment also provides a radio frequency filter, which includes a support base, a bearing platform and the above-mentioned resonance rod. The support base and the resonance rod are both installed on the bearing platform, and the support base and the resonance rod are connected through a tap piece.

The present invention claims priority to the Chinese patent application with application number 2022109886629 submitted to the China Patent Office on August 17, 2022. The entire content of the above application is incorporated into the present invention by reference.

100: Harmonic oscillator 101: Cylinder groove 102: Connecting hole 110: Cylinder 111: Raised part 112: Raised groove 120: Flip plate 121: Rib groove 122: Bend edge 210: Connector 220: Support seat 230: Sealing ring 240: First tapping piece 250: Second tapping piece 260: Carrier 261: Accommodating chamber

[Figure 1] is a schematic diagram of the structure of a harmonic oscillator provided in one embodiment of the present invention. [Figure 2] is a cross-sectional view of a harmonic oscillator provided in one embodiment of the present invention. [Figure 3] is a schematic diagram of the structure of a radio frequency filter provided in one embodiment of the present invention. [Figure 4] is a cross-sectional view of a harmonic oscillator provided in another embodiment of the present invention. [Figure 5] is a cross-sectional view of a harmonic oscillator provided in another embodiment of the present invention.

100: Harmonic vibration

101: Barrel groove

110:Cylinder

120: Turnaround

121: rib groove

Claims (10)

A harmonic oscillator, characterized by comprising: a cylinder (110), the top of which is provided with a cylinder groove (101), the bottom of which is penetrated by a connecting hole (102); a flap (120), which is connected to the top of the cylinder (110), the bottom of which is fixedly connected to the outer wall of the cylinder (110) via a reinforcing rib, wherein a plurality of the reinforcing ribs are provided, and the plurality of the reinforcing ribs are evenly arranged at intervals on the edge of the cylinder (110). The resonant rod according to claim 1, wherein the turning plate (120) is an annular plate, and the reinforcing rib is fixed to the lower plate surface of the turning plate (120). A harmonic vibration rod as described in claim 1, wherein the barrel groove (101) is cylindrical, the overall thickness of the barrel (110) is uniform, and a plurality of reinforcing ribs are evenly distributed around the axis of the barrel (110). A harmonic vibration rod as described in claim 1, wherein the reinforcing rib forms a rib groove (121), and the rib groove (121) is connected to the groove top of the barrel groove (101). A harmonic oscillator as described in claim 4, wherein the groove depth of the rib groove (121) gradually increases from the edge of the rib groove (121) to the center of the rib groove (121). The resonant rod according to claim 1, wherein the cylinder (110) and the turning plate (120) are integrally formed. A harmonic vibration rod as described in claim 1, wherein the number of the reinforcing ribs is three. The resonant rod according to any one of claims 1 to 7, wherein the edge ring of the turning plate (120) is provided with a bending edge (122), and the bending edge (122) is bent downward. The resonant rod according to claim 8, wherein the bottom of the barrel groove (101) is provided with a protruding portion (111), and the protruding portion (111) forms a protruding groove (112). The groove (112) communicates with the barrel groove (101) through the communication hole (102). A radio frequency filter is characterized by comprising a support base (220), a carrier platform (260) and a resonant oscillator as described in any one of claims 1 to 9, wherein the support base (220) and the resonant oscillator are respectively mounted on the carrier platform (260), and the support base (220) and the resonant oscillator are connected via a tap plate.