WO2022151712A1

WO2022151712A1 - Welding-free radio frequency connector

Info

Publication number: WO2022151712A1
Application number: PCT/CN2021/109985
Authority: WO
Inventors: 赵震州
Original assignee: 金谷汽车部件有限公司
Priority date: 2021-01-15
Filing date: 2021-08-02
Publication date: 2022-07-21
Also published as: CN213753347U

Abstract

A welding-free radio frequency connector, comprising a first connecting assembly (1), a second connecting assembly (2), and a transmission assembly (3) connected between the first connecting assembly (1) and the second connecting assembly (2). The first connecting assembly (1) comprises an integrally formed first connecting seat (11), a first insulating member (12) connected to the bottom of the first connecting seat (11), and a first conductor inner core (13) connected to the first insulating member (12). The second connecting assembly (2) comprises an integrally formed second connecting seat (21), a second insulating member (22) connected to the bottom of the second connecting seat (21), and a second conductor inner core (23) connected to the second insulating member (22). Welding-free pins (111, 131, 211, 231) are formed at the periphery of the bottom of the first connecting seat (11), an outer end of the first conductor inner core (13), the periphery of the bottom of the second connecting seat (21) and an outer end of the second conductor inner core (23). When the radio frequency connector is connected to a circuit board, all that is required is for the welding-free pins of the connecting seats to be inserted into corresponding connecting holes of the circuit board (PCB), thereby facilitating rapid mounting of the radio frequency connector.

Description

A solderless radio frequency connector

technical field

The utility model relates to the technical field of signal transmission connectors, in particular to a welding-free radio frequency connector.

Background technique

RF connectors can be used for interconnection between circuit boards (PCB boards) and circuit boards (PCB boards), RF modules and RF modules, and circuit boards (PCB boards) and RF modules. Existing RF connectors usually adopt a three-piece structure, including two connecting components and a transmission component disposed between the two connecting components, and the existing three-piece RF connectors have the following technical problems: 1. Connecting components The bottom surface of the inner core of the conductor and the bottom surface of the outer shell are connected to the circuit board (PCB board) by welding, which is easy to cause virtual welding, so that the RF connector cannot be electrically connected normally, and the welding method is not convenient to realize the circuit board. Connection; 2. The connection component is composed of the outer shell and the inner shell, which not only affects the efficiency of product assembly, but also deflects the transmission component connected to the inner shell, affecting the normal signal transmission of the RF connector; 3. Insulation on the transmission component The structure of the component realizes full wrapping of the inner conductor, increases the impedance of the inner conductor, and affects the normal operation of the RF connector.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide a solder-free radio frequency connector, which has the advantages of simplified components, convenient assembly, low impedance, and reliable electrical connection.

In order to achieve the above purpose, the present invention adopts such a solder-free radio frequency connector, which includes a first connecting component, a second connecting component, and a transmission component connected between the first connecting component and the second connecting component, the first connecting component and the second connecting component. A connecting assembly includes an integrally formed first connecting seat, a first insulating member connected to the bottom of the first connecting seat, and a first conductor inner core connected to the first insulating member, and the second connecting assembly includes an integrally formed first connecting member. Two connecting bases, a second insulating member connected to the bottom of the second connecting base, a second inner conductor core connected to the second insulating member, the bottom of the first connecting base, the outer end of the first conductor inner core, The periphery of the bottom of the second connecting seat and the outer end of the inner core of the second conductor are formed with solder-free feet.

The two connection bases connected to the circuit board on the above-mentioned RF connectors adopt solder-free feet, and it is only necessary to insert the solder-free feet of the connection seat into the corresponding connection holes of the circuit board (PCB board) to realize the connection between the connection seat and the circuit board (PCB). The electrical connection of the PCB board), this structure does not require welding, which is convenient for the installation of the RF connector, and there is no virtual welding that causes the RF connector to fail to perform normal signal transmission.

The utility model is further configured that the solder-free feet around the bottom of the first connection seat and the solder-free feet of the first conductor inner core are on the same plane, and the solder-free feet around the bottom of the second connection seat and the second conductor inner core are in the same plane. The solderless feet are in the same plane.

The solder-free pins on the same connection seat are on the same plane, which ensures the reliability of the connection between the connection seat and its corresponding circuit board (PCB board).

The utility model is further provided that the welding-free foot includes a positioning part, a plug-in part and a puncture part in sequence, the plug-in part is in the shape of a shuttle, a waist-shaped hole is formed in the middle of the plug-in part, and the width of the positioning part is larger than the width of the plug-in part. maximum width.

The above-mentioned plug-in portion is used for interference fit with the connecting hole on the circuit board (PCB board), and the positioning portion is used for positioning the solder-free pins on the circuit board (PCB board).

The utility model is further configured that the transmission assembly includes an outer conductor, an outer sleeve connected to the outer conductor, and an inner conductor arranged inside the outer conductor, and both ends of the outer conductor are formed with a number of outer contact elastic sheets, and the outer contact elastic sheets are respectively connected to the first The inner wall of the first connection seat and the inner wall of the second connection seat, the inner two ends of the outer conductor are provided with third insulating parts, the two ends of the inner conductor are respectively connected to the third insulating parts on both sides, and the inner conductor A number of inner contact elastic sheets are formed on both ends of the first conductor inner core, the inner end of the first conductor inner core and the inner end of the second conductor inner core are respectively connected between the inner contact elastic sheets, and the third insulating member is facing inward contact The position of the shrapnel forms several slots.

The main bodies of the above-mentioned first connecting assembly and second connecting assembly are all formed by an integrally formed connecting seat, which facilitates the positioning and assembling of the first insulating member and the second insulating member on the first connecting seat and the second connecting seat, respectively. The inner core of the first conductor and the inner core of the second conductor are kept in a coaxial relationship with the inner conductor as far as possible, so that the signal connection reliability of the RF connector is higher; the inner end of the inner core of the first conductor and the inner end of the inner core of the second conductor are respectively Connecting between the inner contact shrapnel will make the inner contact shrapnel at both ends of the inner conductor open to the outer circumference. The setting of the slot is conducive to the action of the inner contact shrapnel. According to the characteristic impedance of the RF connector, the larger the inner diameter of the inner conductor, the higher the characteristic impedance. become smaller, so as to achieve impedance matching and improve the transmission capacity of radio frequency signals.

The utility model is further provided that the inner wall of the first connecting seat protrudes to form a first positioning block, the side of the first insulating member close to the first positioning block forms a first positioning groove, and the first positioning groove is connected to the first positioning block. fit.

In the present invention, the inner side of the first positioning block forms an annular connecting section, one side of the annular connecting section forms an annular narrowing section, and the end of the outer contact elastic sheet close to the first connecting seat on the outer conductor forms an arc-shaped convex surface , the arc-shaped convex surface is fitted with the annular connecting section, and the inner diameter of the annular narrowing section is smaller than the inner diameter of the annular connecting section.

The above structure facilitates the positioning of the first insulating member on the first connecting seat, and the ring-shaped connecting section and the arc-shaped convex surface form an interference fit, and the deflection of the outer conductor at a certain angle (within 20°) can still ensure that the two are in normal connection. In the state, the annular narrowing section limits the arc-shaped convex surface to prevent the inner conductor from being detached from the first connecting seat. As the fixed end of the outer conductor, the second connection seat is used as the movable connection end.

The utility model is further provided that the inner wall of the second connecting seat protrudes to form a second positioning block, the side of the second insulating member close to the second positioning block forms a second positioning groove, and the second positioning groove is connected to the second positioning block. fit.

The utility model is further provided that the end of the outer contact elastic sheet close to the second connection seat on the outer conductor forms an arc-shaped convex surface, and the arc-shaped convex surface is attached to the inner wall of the second connection seat.

The above structure facilitates the positioning of the second insulating member on the second connecting seat, the arc-shaped convex surface forms an interference fit with the inner wall of the second connecting seat, and the outer conductor is deflected at a certain angle to ensure that the two are in a normal connection state.

Description of drawings

Figure 1 is an exploded view of an embodiment of the present invention.

FIG. 2 is a perspective view of a solder-free foot according to an embodiment of the present invention.

3 is a cross-sectional view of an embodiment of the present invention.

FIG. 4 is an exploded view of a part of the transmission assembly according to the embodiment of the present invention.

FIG. 5 is a schematic diagram of the connection between the embodiment of the present invention and the circuit board.

Detailed ways

As shown in Figures 1-4, the present invention is a solder-free radio frequency connector, comprising a first connection assembly 1, a second connection assembly 2, a connection between the first connection assembly 1 and the second connection assembly 2. Transmission assembly 3 , the first connection assembly 1 includes an integrally formed first connection seat 11 , a first insulating member 12 connected to the bottom of the first connection seat 11 , and a first conductor inner core connected to the first insulating member 12 13. The second connecting assembly 2 includes an integrally formed second connecting seat 21, a second insulating member 22 connected to the bottom of the second connecting seat 21, and a second conductor inner core 23 connected to the second insulating member 22, Solder-free feet (111, 131, 211, 231) are formed around the bottom of the first connection seat 11, the outer end of the first conductor inner core 13, the bottom around the second connection seat 21, and the outer end of the second conductor inner core 23. The solder-free pins 111 around the bottom of the first connection seat 11 and the solder-free pins 131 of the first conductor inner core 13 are on the same plane, and the solder-free pins 211 around the bottom of the second connection seat 21 are on the same plane as the second conductor inner core. The solder-free feet 231 of 23 are in the same plane, and the solder-free feet (111, 131, 211, 231) sequentially include a positioning part 4, a plug-in part 5, and a puncture part 6. The plug-in part 5 is in the shape of a shuttle, and the middle of the plug-in part 5 is formed The waist-shaped hole 51, the width of the positioning portion 4 is greater than the maximum width of the plug-in portion 5, the transmission assembly 3 includes an outer conductor 31, an outer sleeve 32 connected to the outer conductor 31, and an inner conductor arranged inside the outer conductor 31. 33. Several outer contact elastic pieces 311 are formed on both ends of the outer conductor 31. The outer contact elastic pieces 311 are respectively connected to the inner wall of the first connection seat 11 and the inner wall of the second connection seat 21. Both ends are provided with a third insulating member 34, the two ends of the inner conductor 33 are respectively connected to the third insulating members 34 on both sides, and both ends of the inner conductor 33 are formed with a number of inner contact elastic pieces 331, the first The inner end of the conductor inner core 13 and the inner end of the second conductor inner core 23 are respectively connected between the inner contact elastic pieces 331, and a plurality of slots 341 are formed on the third insulating member 34 at the position facing the inner contact elastic pieces 331, The inner wall of the first connecting seat 11 protrudes to form a first positioning block 112 , and the side of the first insulating member 12 close to the first positioning block 112 forms a first positioning groove 121 . A positioning block 112 is attached, the inner side of the first positioning block 112 forms an annular connecting section 113 , one side of the annular connecting section 113 forms an annular narrowing section 114 , and the outer conductor 31 is close to the first connecting seat 11 The end of the outer contact elastic sheet 311 forms an arc-shaped convex surface 3111, and the arc-shaped convex surface 3111 is fitted with the annular connecting section 113. The inner diameter of the annular narrowing section 114 is smaller than the inner diameter of the annular connecting section 113. The inner wall protrudes to form a second positioning block 212 , a side of the second insulating member 22 close to the second positioning block 212 forms a second positioning groove 221 , and the second positioning groove 22 1. It is attached to the second positioning block 212, and the end of the outer contact elastic piece 311 of the outer conductor 31 close to the second connection seat 21 forms an arc-shaped convex surface 3111, and the arc-shaped convex surface 3111 is attached to the inner wall of the second connection seat 21. combine.

According to the above embodiment, as shown in FIG. 5 , the two connection bases connected to the circuit board on the radio frequency connector of the present invention adopt solder-free pins, and only the solder-free pins of the first connection seat need to be inserted into the circuit board 7 ( Insert the solder-free feet 211 of the second connection seat into the connection holes corresponding to the circuit board 8 (PCB board) into the corresponding connection holes of the circuit board 8 (PCB board), so as to realize the electrical connection between the connection seat at both ends and the circuit board (PCB board). , such a structure does not require welding, which is convenient for the installation of the radio frequency connector, and there is no virtual welding that causes the radio frequency connector to fail to perform normal signal transmission.

Of course, in addition to the above-mentioned embodiments, the present invention can also have other various embodiments. Without departing from the essential technical solutions of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention. deformation, and these changes or deformations are equivalent to the technical solutions in this patent, then these corresponding changes and deformations shall belong to the protection scope of the appended claims of the present invention.

Claims

A solder-free radio frequency connector, comprising a first connection component, a second connection component, and a transmission component connected between the first connection component and the second connection component, characterized in that the first connection component comprises an integrally formed The first connecting seat, the first insulating member connected to the bottom of the first connecting seat, the first conductor inner core connected to the first insulating member, the second connecting assembly includes an integrally formed second connecting seat, connected to the The second insulating member at the bottom of the second connection seat, the second conductor inner core connected to the second insulating member, the periphery of the bottom of the first connection seat, the outer end of the first conductor inner core, and the bottom of the second connection seat The periphery and the outer end of the inner core of the second conductor are formed with solder-free feet.
The solder-free RF connector according to claim 1, wherein the solder-free feet around the bottom of the first connection seat and the solder-free feet of the first conductor inner core are on the same plane, and the second connection The solder-free feet around the bottom of the seat and the solder-free feet of the inner core of the second conductor are on the same plane.
The solder-free radio frequency connector according to claim 1 or 2, wherein the solder-free feet include a positioning part, a plug-in part, and a puncture part in sequence, the plug-in part is in the shape of a shuttle, and the plug-in part is in the shape of a shuttle. A waist-shaped hole is formed in the middle part, and the width of the positioning part is larger than the maximum width of the plug-in part.
The solder-free RF connector according to claim 1 or 2, wherein the transmission component comprises an outer conductor, an outer sleeve connected to the outer conductor, an inner conductor arranged inside the outer conductor, and two ends of the outer conductor A number of outer contact elastic sheets are formed, and the outer contact elastic sheets are respectively connected to the inner wall of the first connection seat and the inner wall of the second connection seat. The two ends of the inner conductor are respectively connected to the third insulators on both sides, and both ends of the inner conductor are formed with several inner contact elastic pieces, and the inner end of the inner core of the first conductor and the inner end of the inner core of the second conductor are respectively connected to Between the inner contact elastic sheets, a number of slots are formed on the third insulating member at the position facing the inner contact elastic sheets.
The solder-free radio frequency connector according to claim 4, wherein the inner wall of the first connection seat protrudes to form the first positioning block, and the side of the first insulating member close to the first positioning block forms the first positioning block The first positioning groove is fitted with the first positioning block.
The solder-free RF connector according to claim 5, wherein an annular connecting section is formed on the inner side of the first positioning block, a narrowed annular section is formed on one side of the annular connecting section, and the outer conductor is An arc-shaped convex surface is formed at the end of the outer contact elastic sheet close to the first connecting seat, and the arc-shaped convex surface is fitted with the annular connecting section, and the inner diameter of the annular narrowing section is smaller than that of the annular connecting section.
The solder-free RF connector according to claim 4, wherein the inner wall of the second connection seat protrudes to form the second positioning block, and the side of the second insulating member close to the second positioning block forms the second positioning block The second positioning groove is fitted with the second positioning block.
The solder-free RF connector according to claim 7, wherein an arc-shaped convex surface is formed on the end of the outer contact spring sheet on the outer conductor close to the second connection seat, and the arc-shaped convex surface is connected to the second connection seat. Inner wall fit.