阅读说明：本技术 弹簧针组件、滤波器及其与天线耦合板的导通固定方法 (Spring pin assembly, filter and conducting and fixing method of filter and antenna coupling plate ) 是由 成钢 黄锦军 彭蛟 吴运松 方敏杰 陈志军 于 2019-08-26 设计创作，主要内容包括：本发明涉及弹簧针组件、滤波器以及其与天线耦合板的导通固定方法,所述弹簧针组件包括针管、介质、硅胶弹簧、灯笼簧片和接触针,在针管与接触针之间留出足够的安全间隙,以防止其相互导通,信号或电流导通由灯笼簧片将针管与接触针连接,还采用了硅胶弹簧,硅橡胶具有生理惰性、具有较好的弹性及伸展性,对电流及射频信号不导通,更加能够确保信号或电阻值的稳定性,解决了滤波器接触不良或损坏情况下拆装不便的问题,新式的弹簧针组件能够有效提高滤波器与天线之间的传输性能,确保天线信号传输的稳定性。(The invention relates to a spring needle assembly, a filter and a conducting and fixing method of the filter and an antenna coupling plate, wherein the spring needle assembly comprises a needle tube, a medium, a silica gel spring, a lantern reed and a contact pin, a sufficient safety gap is reserved between the needle tube and the contact pin to prevent mutual conduction of the needle tube and the contact pin, the needle tube and the contact pin are connected by the lantern reed when a signal or current is conducted, the silica gel spring is adopted, the silica gel has physiological inertia and better elasticity and extensibility, is not conducted to current and radio frequency signals, can better ensure the stability of a signal or a resistance value, solves the problem that the filter is inconvenient to disassemble and assemble under the condition of poor contact or damage, and can effectively improve the transmission performance between the filter and the antenna and ensure the stability of antenna signal transmission.)

1. The utility model provides a spring needle subassembly, is used for metal cavity filter, its characterized in that, spring needle subassembly includes needle tubing, medium, silica gel spring, lantern reed and contact pin, the medium is equipped with the through-hole, and the needle tubing is inserted and is established in the through-hole of medium, the upper portion of needle tubing is solid contact pin, and the lower part of needle tubing is tubular structure, and the upper portion and the lower part of needle tubing structure as an organic whole, and the contact pin exceeds the upper surface of medium and the diameter of contact pin is less than tubular structure's external diameter, and the tubular structure of needle tubing lower part contains upper end closure, lower extreme open-ended inner chamber, and the contact pin is inserted and is established the inner chamber and can slide in the inner chamber, is equipped with the silica gel spring between the up end of contact pin and inner chamber, and lantern reed cover is outside the contact pin, is located between contact.

2. The pogo pin assembly of claim 1, wherein the needle cannula is provided with a collar at an outer portion thereof, the medium passage hole is a stepped hole having a small top and a large bottom, and the medium positions the needle cannula by cooperation of the stepped hole and the collar.

3. The pogo pin assembly of claim 1, wherein the contact pin has a boss at its upper end, the lantern spring is fitted over the pin body below the boss of the contact pin, and the wall of the lower end of the pin tube is slightly bent inward to form a flange for limiting the contact pin and the lantern spring and preventing the contact pin or the lantern spring from coming off the pin tube.

4. The pogo pin assembly of claim 1, wherein the silicone spring is made of silicone rubber, and the organic group of the silicone rubber is methyl, phenyl, vinyl, trifluoropropyl, or cyano.

5. The pogo pin assembly of claim 1, wherein the silicone spring is replaced with a metal spring.

6. A filter, the filter is a metal cavity filter, including the cavity, the resonant chip, the fly rod assembly and the tuning screw assembly, characterized in that, the filter also includes the spring pin assembly of any claim 1-5, the spring pin assembly is inserted into the filter from the bottom of the cavity, and inserted into the pad of the resonant chip through the pin at the top, and the assembly of the spring pin assembly is completed after welding.

7. The method as claimed in claim 6, wherein a threaded hole is formed at the bottom of the cavity of the filter, a set screw passes through the antenna coupling plate and the threaded hole at the bottom of the cavity to fix the filter on the antenna coupling plate, and the contact pin at the lower part of the spring pin assembly is connected and conducted with the contact point on the antenna coupling plate to realize the connection and fixation of the filter and the antenna coupling plate.

8. The method of claim 7, wherein the antenna is an AFU antenna, and the screw holes are two and three on two sides of the pogo pin assembly.

Technical Field

The invention relates to the technical field of communication filtering, in particular to a spring pin assembly, a filter and a method for conducting and fixing the spring pin assembly and the filter with an antenna coupling plate.

Background

The 5G large-scale antenna system architecture comprises a dense radiating array, a power division network, a coupling calibration network, a blind-mate connector and a transceiving unit. The working principle of the whole 5G antenna system is that an antenna radio frequency channel (comprising a unit module consisting of a plurality of radiation units) realizes the receiving and sending of wireless transmission signals; the receiving and transmitting unit transmits and receives RF signals of a radio frequency channel; the coupling calibration network monitors the transmitting power and the phase transmitted to each radio frequency channel by the transmitting and receiving unit; in this way, the system shaping algorithm realizes the precise 3-dimensional beam pattern and 3-dimensional scanning of the large-scale antenna by adjusting the amplitude-phase weight configuration excited to each unit module (radio frequency channel) by the transceiver unit.

The AFU (antenna and filter integrated) antenna comprises a vibrator power distribution network, a coupling calibration network and a filter, wherein the components are integrally designed, an exploded view is shown in figure 6 (a hidden antenna cover), and the cost, the weight and the product volume are reduced to the greatest extent.

In the AFU antenna structure, the conducting and fixing mode of the filter and the antenna coupling plate directly affects the stability of signal transmission and the antenna performance, the current metal cavity filter is generally conducted with the antenna coupling plate by welding a signal transmission pin (contact pin), as shown in fig. 7, the filter is fixed on the antenna coupling plate by welding a grounding weld corner on the cavity, the welding mode is inconvenient to disassemble and assemble, or as shown in fig. 8, the contact pin (spring pin) with a spring is conducted with the coupling plate, but the interior of the spring pin structure of the conventional structure is reset by a metal spring, the contact pin is directly contacted with a needle tube, signals or current can be conducted by the spring, and can be conducted by the needle tube and the contact pin, the resistance value can be changed due to uneven spring compression and needle tube contact, and the AFU antenna structure is particularly important under the condition that high.

Disclosure of Invention

The invention aims to provide a pogo pin assembly, a filter using the pogo pin assembly and a conducting and fixing mode of the filter and an antenna coupling plate, wherein the pogo pin assembly adopts a new structure and can ensure the stability of a radio frequency signal or a resistance value, thereby ensuring the stability of signal transmission between the filter and the antenna coupling plate, facilitating the disassembly between the filter and the antenna coupling plate and further improving the performance of an antenna.

In order to achieve the above purpose, the present invention adopts the following technical scheme.

The utility model provides a spring needle subassembly, is used for metal cavity filter, its characterized in that, spring needle subassembly includes needle tubing, medium, silica gel spring, lantern reed and contact pin, the medium is equipped with the through-hole, and the needle tubing is inserted and is established in the through-hole of medium, the upper portion of needle tubing is solid contact pin, and the lower part of needle tubing is tubular structure, and the upper portion and the lower part of needle tubing structure as an organic whole, and the contact pin exceeds the upper surface of medium and the diameter of contact pin is less than tubular structure's external diameter, and the tubular structure of needle tubing lower part contains upper end closure, lower extreme open-ended inner chamber, and the contact pin is inserted and is established the inner chamber and can slide in the inner chamber, is equipped with the silica gel spring between the up end of contact pin and inner chamber, and lantern reed cover is outside the contact pin, is located between contact.

The outside of the needle tube is provided with a clamping ring, the medium through hole is a step hole with a small upper part and a large lower part, and the medium positions the needle tube through the matching of the step hole and the clamping ring.

The contact pin upper end is equipped with the boss, and the lantern reed cover is established on the needle body of contact pin boss below, the pipe wall of needle tubing lower extreme department is bent inwards a little for the butt joint contact pilotage and lantern reed carry on spacingly, prevent that contact pin or lantern reed from deviating from the needle tubing.

The material of the silica gel spring is silicon rubber, and the organic group of the silicon rubber is methyl, phenyl, vinyl, trifluoropropyl or cyano.

Further, the silicone spring is replaced with a metal spring.

A filter is a metal cavity filter and comprises a cavity, a resonance sheet, a flying rod assembly, a screw adjusting assembly and any spring pin assembly, wherein the spring pin assembly is inserted into the filter from the bottom of the cavity, is inserted into a bonding pad of the resonance sheet through a contact pin at the top of the cavity, and is assembled after welding.

The bottom of the cavity of the filter is provided with a threaded hole, a set screw passes through the antenna coupling plate and the threaded hole at the bottom of the cavity to fix the filter on the antenna coupling plate, and a contact pin at the lower part of the spring pin component is connected and communicated with a contact on the antenna coupling plate to realize the connection and fixation of the filter and the antenna coupling plate.

The antenna is the AFU antenna, there are two screw holes, are located the spring pin subassembly both sides respectively, and the three is on a straight line.

Has the advantages that:

1. the invention provides a unique spring needle assembly, which is different from the traditional structure, and a sufficient safety gap is reserved between a needle tube and a contact needle to prevent the needle tube and the contact needle from being mutually conducted, and the needle tube and the contact needle are connected by a lantern reed when signals or current are conducted.

2. The spring needle assembly adopts the silica gel spring, the material of the silica gel spring is that the main chain of the silicon rubber is formed by silicon and oxygen atoms alternately, the silicon atom is usually connected with rubber with two organic groups, and the organic groups are methyl, phenyl, vinyl, trifluoropropyl or cyano. General silicon rubber mainly comprises silicon-oxygen chain links containing methyl and a small amount of vinyl, the introduction of phenyl can improve the high-temperature resistance and the low-temperature resistance of the silicon rubber, and the introduction of trifluoropropyl and cyano can improve the temperature resistance and the oil resistance of the silicon rubber; the silicon rubber has good low temperature resistance, can work at the temperature of-55 ℃ generally, and can reach-73 ℃ after phenyl is introduced. The silicon rubber has outstanding heat resistance, can work for a long time at 180 ℃, can still bear elasticity for a plurality of weeks or more even at the temperature slightly higher than 200 ℃, and can instantaneously resist the high temperature of more than 300 ℃, so the environment adaptability is strong, and the performance change is not easily caused by the influence of the environment. The silicon rubber has good air permeability, physiological inertia, good elasticity and extensibility, and the key is that the silicon rubber is not conducted to current and radio frequency signals, so that the stability of the signals or resistance values can be ensured.

3. The metal cavity filter adopts the unique spring pin assembly, and the filter is fixed on the antenna coupling plate through the screw, so that compared with the welding mode in the prior art, the problem that the filter is inconvenient to assemble and disassemble under the condition of poor contact or damage is solved, and the damage to the antenna coupling plate, which causes greater loss and waste, can be effectively avoided.

Drawings

FIG. 1 is a schematic view of an assembled structure of the spring needle assembly of the present invention;

FIG. 2 is an exploded view of the spring needle assembly of the present invention;

FIG. 3 is an expanded view of the spring needle assembly of the present invention (a metal spring instead of a silicone spring);

FIG. 4 is an assembly diagram illustrating the connection and fixation of the cavity filter and the antenna coupling plate according to the present invention;

FIG. 5 is an exploded view of the cavity filter and the antenna coupling plate of the present invention;

fig. 6 is an exploded schematic view of an AFU antenna structure (hidden radome);

FIG. 7 is a schematic diagram of the conventional sheet metal filter and AFU antenna coupling plate being connected and fixed by a signal transmission pin and a welding method;

fig. 8 is a schematic diagram of the conventional sheet metal filter and AFU antenna coupling plate being conducted and fixed in a pogo pin connection manner;

reference numerals: the device comprises a needle tube 1, a medium 2, a medium 3, a silica gel spring, a lantern reed 4, a contact pin 5, a safety gap 6, a clamping ring 7, a flange 8, a metal spring 9, a spring pin assembly 10, a coupling plate 11, a reflecting plate 12, a filter 13, a cavity 14, a resonant plate 15, a flying rod assembly 16, a screw adjusting assembly 17, a screw hole 18, a set screw 19, a spring pin 20, a power division plate 21, a signal transmission pin 22 and a vibrator assembly 23.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples.

The invention provides a novel spring needle assembly, as shown in figures 1 and 2, the spring needle assembly comprises a needle tube 1, a medium 2, a silica gel spring 3, a lantern spring leaf 4 and a contact needle 5, the medium 2 is provided with a through hole, the needle tube 1 is inserted into the through hole of the medium 2, the upper part of the needle tube 1 is a solid contact pin, the lower part of the needle tube 1 is a tubular structure, the upper part and the lower part of the needle tube are integrally designed, after the needle tube 1 is inserted into the through hole of the medium 2, the contact pin is higher than the upper surface of the medium 2, the diameter of the contact pin is smaller than the outer diameter of the tubular structure, the lower part (namely the tubular structure) of the needle tube 1 comprises an inner cavity with a closed upper end and an open lower end, the contact needle 5 is inserted into the inner cavity and can slide in the inner cavity, the silica gel spring 3 is arranged between the contact needle 5 and the upper end surface of the inner cavity, the, the needle tube 1 is connected with the contact pin 5, and a safety gap 6 is reserved between the needle tube 1 and the contact pin 5 to prevent them from being conducted with each other, see the enlarged view in fig. 1. The signal or current conduction is realized by connecting the needle tube 1 and the contact pin 5 by the lantern reed 4, and the contact stability and the constancy of the resistance value can be ensured due to the elastic structure.

The outside of needle tubing 1 is equipped with rand 7, and medium 2 through-hole is big end down's step hole, installs silica gel spring 3, contact pin 5 and lantern spring 4 back in the needle tubing 1, and in medium 2 through-hole was inserted from up down to needle tubing 1, medium 2 was fixed a position needle tubing 1 through the cooperation of step hole and rand 7.

The contact pin 5 upper end is equipped with the round boss, and the lantern reed cover is established in the boss below of contact pin 5, the pipe wall of needle tubing 1 lower extreme face department inwards buckles a little and forms flange 8 for it is spacing to carry out contact pin 5 and lantern reed 4, prevents that contact pin 5 or lantern reed 4 from deviating from needle tubing 1.

The material of the silica gel spring 3 is the silica gel, and the organic group of the silica gel is methyl, phenyl, vinyl, trifluoropropyl or cyano. The silicon rubber has better temperature resistance and oil resistance, good air permeability and the highest oxygen transmission rate in synthetic polymers. In addition, the silicon rubber has physiological inertia, better elasticity and extensibility, and the key point is that the silicon rubber is not conducted to current and radio frequency signals, so that the stability of the signals or resistance values can be ensured.

As another alternative of the spring needle assembly of the present invention, a metal spring 9 may be used to replace the silicone spring 3, as shown in fig. 3, and the other structures are the same as those shown in fig. 1 or 2, in this case, the metal spring 9 is used, and due to the lantern spring 4, the constancy of the resistance value and the stability of signal transmission can also be ensured, and it is within the protection scope of the present invention.

The invention also provides a filter adopting the spring pin assembly and a signal transmission and fixing mode between the filter and the antenna coupling plate on the basis of the spring pin assembly.

As shown in fig. 4-5, the filter adopts the conducting and fixing manner of the spring pin assembly 10 of the present invention and the antenna coupling board 11, the filter 13 is a metal cavity filter, and includes a cavity 14, a resonator plate 15, a flying rod assembly 16 and a tuning screw assembly 17, the resonator plate 15 is integrally disposed with one side wall of the cavity 14, the tuning screw assembly 17 is disposed on the other opposite side wall, the filter adopts the spring pin assembly 10 described above, the spring pin assembly 10 is inserted into the filter from the bottom of the cavity 14, inserted into a pad of the resonator plate 15 through a pin at the top, and the assembly of the spring pin assembly 10 is completed after welding.

When the filter 13 is conducted and fixed with the antenna coupling plate 11, the bottom of the cavity 14 of the filter is provided with a threaded hole, a set screw 19 passes through the antenna coupling plate 11 and the threaded hole 18 at the bottom of the cavity 14 to fix the filter on the antenna coupling plate 11, and the contact pin 5 at the lower part of the spring pin assembly 10 is connected and conducted with the contact on the antenna coupling plate 11, so that the conduction and the fixation of the filter and the antenna coupling plate 11 are realized. The signal or current is conducted, the needle tube 1 is connected with the contact pin 5 through the lantern spring, the contact stability and the resistance value constancy can be ensured due to the elastic structure, and the silica gel spring 3 can further ensure the signal transmission stability.

The antenna is the AFU antenna, screw hole 18 has two, is located spring pin subassembly 10 both sides respectively, and the three is on a straight line, can guarantee that wave filter ground loop and 11 ground loops of antenna coupling board are closely reliably connected, can effectively shield the signal and prevent to leak.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.