CN115173124A - Floating radio frequency connector - Google Patents

Abstract

The invention discloses a floating radio frequency connector, which comprises a connector body and an auxiliary mounting cover, wherein the connector body comprises a fixed outer conductor and a conductive terminal, the bottom of the fixed outer conductor is bent along the radial direction and extends to form a bearing boss, the bottom of the conductive terminal is bent and extends to form a terminal welding foot, the conductive terminal is axially arranged in the fixed outer conductor, the terminal welding foot can radially extend out of the fixed outer conductor, when the connector body is axially embedded into an accommodating cavity, the connector body is limited in the accommodating cavity, the auxiliary mounting cover is abutted against the bearing boss, and the terminal welding foot can be fixed at the bottom of the auxiliary mounting cover; according to the connector body, the auxiliary mounting cover is used for limiting the connector body in the accommodating cavity, so that the connector body can be conveniently taken and placed by sucking the auxiliary mounting cover when the connector body is welded, the mounting and welding procedures of the connector body are conveniently carried out, the welding difficulty of the connector body is effectively reduced, the welding alignment degree is guaranteed, and the yield is greatly improved.

Description

Floating RF Connector

technical field

The present invention relates to the technical field of radio frequency devices, in particular to a floating radio frequency connector.

Background technique

With the rapid development of the communications industry and various electronics and electrical appliances, RF connectors are widely used in various circuits. The existing radio frequency connector is mainly a coaxial structure radio frequency connector, and the radio frequency connector mainly includes an insulating inner core, an inner conductor and an outer conductor.

However, the existing RF connectors are not easy to pick and place during the welding process, which increases the difficulty of welding and easily leads to defective products due to welding offset. In addition, during the insertion process of the RF connector and the external plug-in, it cannot be guaranteed that the RF connector and the external plug-in are coaxially plugged. Therefore, it is used to cause damage to the terminals and other components of the RF connector and/or external plug-in. It is easy to find poor connections in the later stage due to the instability of the structure after plugging.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a floating radio frequency connector, which can limit the connector body in the receiving cavity by adding an auxiliary mounting cover, so as to realize the connection by sucking the auxiliary mounting cover when the connector body is soldered. The pick and place of the connector body is convenient for the mounting and welding process of the connector body, thereby effectively reducing the welding difficulty of the connector body, ensuring the welding alignment, and greatly improving the yield.

In order to achieve the above object, the present invention discloses a floating radio frequency connector, which includes a connector body and an auxiliary mounting cover, the connector body includes a fixed outer conductor and a conductive terminal, and the bottom of the fixed outer conductor is radially oriented Bending and extending to form a bearing boss, the bottom of the conductive terminal is bent and extended to form a terminal pad, the conductive terminal is axially installed in the fixed outer conductor, and the terminal pad can be radially Extending out of the fixed outer conductor, the auxiliary mounting cover has a hollow structure with an open bottom, and the hollow structure forms a receiving cavity. When the connector body is axially inserted into the receiving cavity, the connector body is limited to inside the receiving cavity, and the auxiliary mounting cover abuts on the bearing boss, and the terminal solder pins can be fixed on the bottom of the auxiliary mounting cover.

Compared with the prior art, the present invention adds an auxiliary mounting cover. The auxiliary mounting cover has a hollow structure with an open bottom. The hollow structure forms a receiving cavity. When the connector body is inserted into the receiving cavity in the axial direction, the connector body is limited to the receiving cavity. In the cavity, and the auxiliary mounting cover abuts on the bearing boss, the terminal soldering feet can be fixed on the bottom of the auxiliary mounting cover. When soldering the connector body, the pick-and-place of the connector body is realized by sucking the auxiliary mounting cover, which is convenient for the mounting and welding process of the connector body, thereby effectively reducing the welding difficulty of the connector body and ensuring the welding alignment. Improve yield.

Preferably, the bottom sidewall of the auxiliary mounting cover is axially spaced apart with auxiliary notches, so that the opening of the auxiliary mounting cover forms an elastic structure, and the opening of the auxiliary mounting cover is connected to the fixed outer cover. The conductors are arranged in an interference fit.

Preferably, the connector body further comprises an insulating inner core and a floating outer conductor, the fixed outer conductor, the floating outer conductor and the insulating inner core are arranged coaxially and form a floating central axis, and the insulating inner core is arranged on the floating In the outer conductor, the conductive terminal is inserted and fixed in the insulating inner core along the direction of the floating central axis, the lower end of the floating outer conductor is arranged in the fixed outer conductor, and the lower end of the floating outer conductor can be The swing center swings around the floating central axis, and the lower end of the floating outer conductor is constantly in contact with the fixed outer conductor.

Preferably, the bottom of the floating outer conductor is bent and extended to form outer conductor solder pins, and the outer conductor solder pins can extend radially out of the fixed outer conductor, and the connector body is axially embedded in the outer conductor. When accommodating the cavity, the outer conductor solder pins are fixed on the bottom of the auxiliary mounting cover.

Preferably, the side wall of the auxiliary mounting cover is provided with a first limit block and a second limit block, the bottom of the first limit block is provided with a first limit groove, and the first limit The grooves are used for engaging and fixing the soldering legs of the terminals, and a second limiting groove is formed at the bottom of the second limiting block, and the second limiting grooves are used for engaging and fixing the soldering legs of the outer conductor.

Preferably, the floating RF connector further includes a circuit board, the circuit board is provided with a first pad and a second pad, and the terminal pad is welded and fixed to the circuit through the first pad. on the circuit board, the bearing boss is welded and fixed on the circuit board through the second pad, or the circuit board is provided with a first pad, a second pad and a third pad, and the terminal The solder pins are welded and fixed on the circuit board through the first pads, the bearing boss is welded and fixed on the circuit board through the second pads, and the outer conductor solder pins are welded and fixed on the circuit board through the third pads. The pads are welded and fixed on the circuit board.

Specifically, the first pad is disconnected from the second pad, or the first pad is disconnected from the second pad and the third pad, respectively.

Preferably, the end face of the auxiliary mounting cover is provided with an adsorption area, and the adsorption area is arranged smoothly.

Preferably, the upper end of the fixed outer conductor is bent along the radial direction of the floating central axis close to the floating central axis and extends to form a limit boss, and the fixed outer conductor is limited by the limit boss. The swing amplitude of the floating outer conductor.

Preferably, the floating outer conductor includes a first guide portion and a second guide portion, the first guide portion and the second guide portion both have elasticity, and the lower end of the floating outer conductor is bent and extended to form the first guide portion. a guide portion, the first guide portion is in the shape of an arc surface, and the first guide portion is in an interference fit with the fixed outer conductor, so that the first guide portion constantly abuts the fixed outer conductor;

The upper end of the floating outer conductor is bent and extended to form the second guide portion, the second guide portion is in the shape of an arc surface, and a guide slope is provided at the entrance of the insertion cavity of the external plug-in. When the external plug-in is inserted, the second guide portion is guided into the insertion cavity along the guide slope, and constantly abuts against the inner wall of the insertion cavity.

Description of drawings

1 is a schematic structural diagram of a floating radio frequency connector of the present invention;

Fig. 2 is the exploded schematic diagram of Fig. 1;

Fig. 3 is another exploded schematic diagram of Fig. 2;

4 is a schematic structural diagram of the floating radio frequency connector of the present invention and an external plug-in to be plugged in;

5 is a schematic structural diagram of the floating radio frequency connector of the present invention after coaxial insertion with an external plug-in;

6 is a schematic structural diagram of the floating RF connector of the present invention when it abuts the guiding slope of the external insert;

7 is a schematic structural diagram of the floating radio frequency connector of the present invention being initially introduced into the inlet of the insertion cavity under the action of the guiding slope of the external insert;

8 is a partial cross-sectional view of the floating RF connector in FIG. 7;

9 is a schematic structural diagram of the floating RF connector of the present invention being completely introduced into the insertion cavity under the action of the guiding slope of the external insert.

Detailed ways

In order to describe the technical content, structural features, achieved objects and effects of the present invention in detail, the following detailed description is given in conjunction with the embodiments and the accompanying drawings.

1-9, the floating RF connector 1000 of this embodiment includes a connector body 100 and an auxiliary mounting cover 200, wherein the connector body 100 includes a fixed outer conductor 10 and a conductive terminal 40, and the fixed outer conductor 100 The bottom of the conductor 10 is bent and extended in the radial direction to form the bearing boss 13 , the bottom of the conductive terminal 40 is bent and extended to form the terminal pad 41 , the conductive terminal 40 is axially installed in the fixed outer conductor 10 , and the terminal pad 41 can extend radially out of the fixed outer conductor 10. The auxiliary mounting cover 200 has a hollow structure with an open bottom. The hollow structure forms a receiving cavity. When the connector body 100 is inserted into the receiving cavity in the axial direction, the connector body 100 is limited to the receiving Inside the cavity, and the opening of the auxiliary mounting cover 200 abuts on the bearing boss 13 , the terminal solder pins 41 can be fixed on the bottom of the auxiliary mounting cover 200 . It should be noted that the axial direction involved in this embodiment is the direction in which the connector body 100 and the external insert 2000 are inserted, and the radial direction is any direction in the plane direction perpendicular to the axial direction.

Specifically, auxiliary notches 210 are spaced apart from the bottom sidewall of the auxiliary mounting cover 200 in the axial direction, so that the opening of the auxiliary mounting cover 200 forms an elastic structure, and the opening of the auxiliary mounting cover 200 forms an interference with the fixed outer conductor 10 . Match the settings. When the connector body 100 is inserted into the accommodating cavity, the opening of the auxiliary mounting cover 200 is deformed and expanded due to the compression. After the connector body 100 is inserted in place, the opening of the auxiliary mounting cover 200 is in constant contact under the action of elastic force. the connector body 100 , so as to realize the stable connection between the auxiliary mounting cover 200 and the connector body 100 .

Further, the end face of the auxiliary mounting cover 200 is provided with an adsorption area, and the adsorption area is arranged smoothly. It is understood that the adsorption area may be a certain area on the end face of the auxiliary mounting cover 200, or may be an auxiliary area. The entire end face of the cover 200 is mounted. The use of an adsorption device such as a vacuum suction cup can quickly pick and place the auxiliary mounting cover 200 by adsorbing the adsorption area, so as to facilitate the adsorption and transfer of the connector body 100 embedded in the auxiliary mounting cover 200 to the mounting station for reflow. In the soldering process, the auxiliary mounting cover 200 can be removed after the soldering process is completed.

2-5, the connector body 100 of this embodiment includes a fixed outer conductor 10, a floating outer conductor 20, an insulating inner core 30 and a conductive terminal 40, wherein the fixed outer conductor 10, the floating outer conductor 20 and the The insulating inner core 30 is coaxially arranged and forms a floating central axis 50 , the insulating inner core 30 is arranged in the floating outer conductor 20 , and the conductive terminal 40 is inserted and fixed in the insulating inner core 30 along the direction of the floating central axis 50 , here the insulating inner core The shape of the socket 30 into which the conductive terminal 40 is inserted is circular or square.

It can be understood that the fixed outer conductor 10 , the floating outer conductor 20 and the conductive terminal 40 are all conductive metal parts, and the insulating inner core 30 is a non-conductive plastic insulating part. The fixed outer conductor 10 , the floating outer conductor 20 and the insulating inner core 30 are arranged coaxially, so that the connector body 100 of this embodiment is a coaxial RF connector structure. The floating central axis 50 here is the common axis of the fixed outer conductor 10 , the floating outer conductor 20 and the insulating inner core 30 when the outer insert 2000 is in the coaxial state after ideal insertion as shown in FIGS. 4 and 5 . , the floating central axis 50 coincides with the axial direction.

Preferably, the bottom of the floating outer conductor 20 is bent and extended to form outer conductor solder pins 25, and the outer conductor solder pins 25 can extend radially out of the fixed outer conductor 10, and the connector body 100 is axially embedded in the receiving cavity. , the outer conductor pads 25 are fixed on the bottom of the auxiliary mounting cover 200 . The bottom of the floating outer conductor 20 in this embodiment is provided with three outer conductor solder pins 25 at intervals. Of course, in other embodiments, the number of the outer conductor solder pins 25 may be one, two or four. In addition, in other embodiments, the outer conductor solder pins 25 may not be provided, and the connector body 100 is fixed on the bottom of the auxiliary mounting cover 200 through the terminal solder pins 41 .

Specifically, the side wall of the auxiliary mounting cover 200 is provided with a first limiting block 220 and a second limiting block 230 , the bottom of the first limiting block 220 is provided with a first limiting groove 221 , and the first limiting groove The bottom of the second limiting block 230 is provided with a second limiting groove 231 , and the second limiting groove 231 is used for engaging and fixing the outer conductor welding legs 25 .

It can be understood that, after the above setting, the terminal solder pins 41 and the outer conductor solder pins 25 of the connector body 100 embedded in the receiving cavity can be clamped and fixed in the corresponding limit slots respectively. The positions of the pins 41 and the outer conductor solder pins 25 relative to the auxiliary mounting cover 200 are determined, so as to achieve a high degree of position and facilitate subsequent soldering alignment. Further, by rationally setting the first limit groove 221 and the second limit groove 231, the terminal welding leg 41 and the outer conductor welding leg 25 can be clamped and fixed by the corresponding limiting groove, and the terminal welding leg 41 and the outer conductor welding leg can be welded. The heights of the bottom surfaces of the feet 25 are the same to ensure the smoothness of the welding surface during subsequent welding.

Referring to FIGS. 1-9 , the lower end of the floating outer conductor 20 in this embodiment is disposed in the fixed outer conductor 10 , and the lower end of the floating outer conductor 20 can swing around the floating central axis 50 as the swing center, and the floating outer conductor 20 The lower end of the fixed outer conductor 10 is constantly abutted. It can be understood that when the floating central axis 50 of the lower end of the floating outer conductor 20 swings, since the floating outer conductor 20 and the insulating inner core 30 are fixedly arranged, at this time, the axes of the floating outer conductor 20 and the insulating inner core 30 are coaxial. , but not coaxial with the fixed outer conductor 10, the axis of the floating outer conductor 20 and the insulating inner core 30 has a certain angle with the floating central axis 50, and the angle is greater than 0° and less than 90°. The specific state is shown in Figure 6-Fig. 9 shown. In addition, since the fixed outer conductor 10 and the floating outer conductor 20 are both conductive metal parts, the lower end of the floating outer conductor 20 is in constant contact with the fixed outer conductor 10, thereby realizing the connection between the floating outer conductor 20 and the fixed outer conductor 10. Constant electrical connection. It should be noted that the insulating inner core 30 here can be an integral structure or a split structure. When the insulating inner core 30 is a split structure, each part of the insulating inner core 30 can be riveted, snapped, glued The insulating inner core 30 is formed by means of joints, bolts, etc., which will not be described in detail here.

Preferably, the floating radio frequency connector 1000 of this embodiment further includes a circuit board 300 . The circuit board 300 is provided with a first pad 310 and a second pad 320 , and the terminal pads 41 are welded and fixed on the first pad 310 . On the circuit board 300, the bearing boss 13 is welded and fixed on the circuit board 300 through the second pad 320. Correspondingly, the first pad 310 and the second pad 320 are disconnected, so as to ensure that the conductive terminal 40 and the fixed outer The conductors 10 are in an insulated state. At this time, the connector body 100 is welded on the circuit board 300 through the terminal solder pins 41 and the bearing boss 13 to ensure the welding stability of the connector body 100 and the circuit board 300 .

In other preferred manners, the circuit board 300 is provided with a first pad 310 , a second pad 320 and a third pad 330 , and the terminal pads 41 are welded and fixed on the circuit board 300 through the first pad 310 to carry the load The boss 13 is welded and fixed on the circuit board 300 through the second pad 320, and the outer conductor pads 25 are welded and fixed on the circuit board 300 through the third pad 330. Correspondingly, the first pad 310 and the second pad are respectively 320 and the third pad 330 are disconnected, so as to ensure that the conductive terminal 40 and the fixed outer conductor 10 and the conductive terminal 40 and the floating outer conductor 20 are all insulated. The second pad 320 and the third pad 330 may be in a disconnected state or in a connected state, which is not limited herein.

Preferably, the fixed outer conductor 10 is integrally formed, and the second pad 320 is provided on the circuit board 300 in an integral structure in the shape of an annular strip, or may be provided on the circuit board 300 in a separate structure.

Of course, in other embodiments, the fixed outer conductor 10 is a split structure, for example, the fixed outer conductor 10 is composed of two conductive metal blocks fixed by riveting, snapping or screwing. In this case, the second pad 320 It is arranged on the circuit board 300 in a split structure. Of course, the fixed outer conductor 10 may also be composed of a larger number of conductive metal blocks, which will not be repeated here.

Preferably, both the terminal solder pins 41 and the outer conductor solder pins 25 are arranged elastically to absorb the swing deformation of the conductive terminals 40 and the outer conductor solder pins 25 . It can be understood that since the terminal solder pins 41 and the outer conductor solder pins 25 are welded and fixed on the circuit board 300, the terminal solder pins 41 and the outer conductor solder pins 25 will be deformed relative to the circuit board 300 during the swinging process. The solder pins 41 and the outer conductor solder pins 25 are both set as elastic structures, so that both the terminal solder pins 41 and the outer conductor solder pins 25 can absorb the swing deformation through deformation, so as to ensure that the terminal solder pins 41 and the outer conductor solder pins 25 are connected to the circuit board. Welding stability between 300. The terminal elastic sheet 42 in this embodiment can be bent at a right angle, an acute angle, a single wave or multiple waves, etc., so as to provide sufficient flexible deformation, so that the terminal solder pins 41 can absorb the terminal through deformation. The requirements for the wobble deformation produced by the solder legs 41.

Referring to FIGS. 1-9 , the upper end of the fixed outer conductor 10 in this embodiment is bent along the radial direction of the floating central axis 50 close to the floating central axis 50 and extends to form a limiting boss 11 , and the fixed outer conductor 10 passes through The limiting boss 11 limits the swing amplitude of the floating outer conductor 20 . In actual use, the height of the limiting boss 11 can be set according to the model of the floating RF connector 1000 to limit the maximum swing amplitude.

As an alternative, in other preferred manners, the swing amplitude of the floating outer conductor 20 may be limited only by adjusting the gap between the floating outer conductor 20 and the fixed outer conductor 10 . Of course, it is also possible to set the limiting boss 11 and adjust the gap between the floating outer conductor 20 and the fixed outer conductor 10 at the same time to jointly limit the swing range of the floating outer conductor 20 , which will not be repeated here.

Referring to FIGS. 1-9 , the lower end of the floating outer conductor 20 in this embodiment is bent along the radial direction of the floating central axis 50 away from the floating central axis 50 and extends to form an elastic first guide portion 21 . The guide portion 21 has an arc shape, and the first guide portion 21 is in an interference fit with the fixed outer conductor 10 , so that the first guide portion 21 is in constant contact with the fixed outer conductor 10 . Because the first guide portion 21 is elastic and has an arc shape, the outer wall of the first guide portion 21 is in constant contact with the inner wall of the fixed outer conductor 10 , and the first guide portion 21 can provide for swinging during the swinging process. Certain guiding and supporting functions ensure a smooth swing process. FIGS. 6-9 show the action process of the first guide portion 21 and the fixed outer conductor 10 .

In addition, since the first guide portion 21 has a certain elasticity, the lower end of the floating outer conductor 20 can be elastically deformed adaptively during the swinging process, so that the floating outer conductor 20 can overcome the horizontal offset and angle of the plugging process when the floating outer conductor 20 swings. offset, to effectively ensure the stability of the structure after the floating RF connector 1000 and the external plug-in 2000 are plugged, and to avoid the terminals 2003 and damage to the rest of the components.

Further, in order to ensure that the first guide portion 21 can provide isotropic elastic force and supporting force during the swinging process, the first guide portion 21 of this embodiment is formed by a plurality of spaced first guide portions formed on the lower end of the floating outer conductor 20 . It is composed of an arc-shaped shrapnel, and the spacing of the first arc-shaped shrapnel can be adjusted according to actual needs, which is not limited here.

Further, the first guide portion 21 is provided with a back-to-front plane 211, and the back-to-front plane 211 is flat. After the RF connector 1000 is plugged with the external plug-in 2000 and the external force (the externally applied plug-in force) is withdrawn, the first guide portion 21 can be aligned under the action of the alignment plane 211 to fit on the inner wall of the fixed outer conductor 10 , Thus, the floating outer conductor 20 is kept perpendicular to the circuit board 300 or the floating outer conductor 20 has a tendency to remain perpendicular to the circuit board 300 at all times.

Referring to FIGS. 1-9 , the upper end of the floating outer conductor 20 in this embodiment is bent along the radial direction of the floating central axis 50 away from the floating central axis 50 and extends to form a second elastic guide portion 22 . The guide portion 22 is in the shape of a curved surface, and a guide slope 2001 is provided at the entrance of the insertion cavity 2002 of the external plug-in 2000. When the floating RF connector 1000 is inserted into the external plug-in 2000, the second guide portion 22 is guided into the insertion cavity 2002 along the guide slope 2001. , and constantly abuts against the inner wall of the insertion cavity 2002 . FIGS. 6 to 9 show the action process of the second guide portion 22 .

It can be understood that, when the floating RF connector 1000 is plugged with the external card 2000, there is a horizontal offset and/or an angular offset such as those shown in FIGS. 6-9, and at this time, the guide slope 2001 will press the second guide The second guide portion 22 is deformed by force, and is guided into the insertion cavity 2002 under the action of the guiding inclined surface 2001. When the second guide portion 22 completely enters the insertion cavity 2002, the second guide portion 22 is under the action of elasticity. Abutting against the inner wall of the plug cavity 2002 , so as to realize the mating and fixing of the upper end of the floating outer conductor 20 and the plug cavity 2002 of the external card 2000 .

Further, in order to ensure that the second guide portion 22 can provide isotropic elastic force and supporting force during the swinging process, the second guide portion 22 of this embodiment is formed by a plurality of spaced first guide portions formed on the upper end of the floating outer conductor 20 . It is composed of two arc-shaped shrapnel, and the spacing of the second arc-shaped shrapnel can be adjusted according to actual needs, which is not limited here.

Preferably, the upper end of the conductive terminal 40 is formed with two terminal elastic pieces 42 arranged at intervals, and the elastic pieces 42 at both ends together form a docking cavity 43. The third guide portion 421 is arc-shaped. When the terminal 2003 of the external plug-in 2000 is inserted into the docking cavity 43, the terminal 2003 of the external plug-in 2000 is guided into the docking cavity 43 along the third guide portion 421.

It can be understood that when the floating RF connector 1000 is plugged with the external card 2000 with a horizontal offset and/or an angular offset, the terminal 2003 of the external card 2000 may abut against the third guide portion of the terminal spring 42 421, at this time, the third guide portion 421 guides the terminal 2003 of the external plug-in 2000 into the docking cavity 43, and finally realizes the stable clamping of the terminal 2003 of the external plug-in 2000 by the two terminal springs 42, as shown in FIG. 6-FIG. 9 The action process of the third guide portion 421 is completed. It should be noted that, in other embodiments, the specific number of the terminal elastic pieces 42 can be set according to actual requirements, which is not limited herein.

1-9, the present invention adds an auxiliary mounting cover 200. The auxiliary mounting cover 200 has a hollow structure with an open bottom, and the hollow structure forms a receiving cavity. When the connector body 100 is inserted into the receiving cavity in the axial direction, the connector body 100 is limited in the receiving cavity, and the auxiliary mounting cover 200 abuts on the bearing boss 13, and the terminal solder pins 41 can be fixed on the bottom of the auxiliary mounting cover 200. The body 100 is limited to be located in the receiving cavity, so that when the connector body 100 is soldered, the auxiliary mounting cover 200 can be sucked to realize the pick and place of the connector body 100, so as to facilitate the mounting and welding process of the connector body 100, thereby effectively reducing the The difficulty of welding the connector body 100 and the guarantee of welding alignment greatly improve the yield.

The above disclosures are only the preferred embodiments of the present invention, and of course, it cannot limit the scope of the rights of the present invention. Therefore, the equivalent changes made according to the scope of the patent application of the present invention are still within the scope of the present invention.

Claims (10)

1. A floating radio frequency connector, characterized in that it comprises a connector body and an auxiliary mounting cover, the connector body includes a fixed outer conductor and a conductive terminal, and the bottom of the fixed outer conductor is bent and extended in the radial direction A bearing boss is formed, the bottom of the conductive terminal is bent and extended to form a terminal solder pin, the conductive terminal is axially installed in the fixed outer conductor, and the terminal solder pin can extend radially out of the fixed outer conductor. Outside the conductor, the auxiliary mounting cover has a hollow structure with an open bottom. The hollow structure forms a receiving cavity. When the connector body is inserted into the receiving cavity in the axial direction, the connector body is limited to the receiving cavity. inside, and the auxiliary mounting cover abuts on the bearing boss, and the terminal solder pins can be fixed on the bottom of the auxiliary mounting cover. 2 . The floating RF connector as claimed in claim 1 , wherein auxiliary notches are spaced apart from the bottom sidewall of the auxiliary mounting cover in the axial direction, so that the opening of the auxiliary mounting cover forms an elastic structure. 3 . , the opening of the auxiliary mounting cover and the fixed outer conductor are arranged in an interference fit. 3 . The floating radio frequency connector of claim 1 , wherein the connector body further comprises an insulating inner core and a floating outer conductor, and the fixed outer conductor, the floating outer conductor and the insulating inner core are coaxially arranged. 4 . And form a floating central axis, the insulating inner core is arranged in the floating outer conductor, the conductive terminal is inserted and fixed in the insulating inner core along the floating central axis direction, and the lower end of the floating outer conductor is arranged in the fixing Inside the outer conductor, the lower end of the floating outer conductor can swing around the floating central axis with the lower end of the floating outer conductor as the swing center, and the lower end of the floating outer conductor is in constant contact with the fixed outer conductor. 4 . The floating RF connector of claim 3 , wherein the bottom of the floating outer conductor is bent and extended to form outer conductor solder pins, and the outer conductor solder pins can extend radially out of the fixed outer conductor. 5 . Outside the conductor, when the connector body is axially embedded in the receiving cavity, the outer conductor solder pins are fixed on the bottom of the auxiliary mounting cover. 5 . The floating RF connector according to claim 4 , wherein the side wall of the auxiliary mounting cover is provided with a first limit block and a second limit block, and the bottom of the first limit block is arranged at the bottom of the first limit block. A first limit groove is opened, and the first limit groove is used for the terminal welding feet to be clamped and fixed. The bottom of the second limit block is provided with a second limit groove. The second limit The grooves are used for the outer conductor solder legs to be snapped and fixed. 6 . The floating RF connector according to claim 4 , further comprising a circuit board, the circuit board is provided with a first pad and a second pad, and the terminal pads pass through the first pad. 7 . The pads are welded and fixed on the circuit board, the bearing boss is welded and fixed on the circuit board through the second pads, or the circuit board is provided with a first pad, a second pad and The third pad, the terminal pad is welded and fixed on the circuit board through the first pad, the bearing boss is welded and fixed on the circuit board through the second pad, and the outer pad is welded and fixed on the circuit board. The conductor pads are welded and fixed on the circuit board through the third pads. 7 . The floating RF connector according to claim 6 , wherein the first pad and the second pad are disconnected, or the first pad and the second pad are respectively disposed. 8 . The disk and the third pad are disconnected. 8 . The floating RF connector according to claim 1 , wherein the end surface of the auxiliary mounting cover is provided with an adsorption area, and the adsorption area is arranged smoothly. 9 . 9 . The floating RF connector according to claim 3 , wherein the upper end of the fixed outer conductor is bent and extended along the radial direction of the floating central axis and close to the floating central axis to form a limiting boss. 10 . , the fixed outer conductor limits the swing amplitude of the floating outer conductor through the limiting boss. 10 . The floating RF connector of claim 3 , wherein the floating outer conductor comprises a first guide portion and a second guide portion, the first guide portion and the second guide portion are both elastic, and the The lower end of the floating outer conductor is bent and extended to form the first guide portion, the first guide portion is in the shape of an arc surface, and the first guide portion is in an interference fit with the fixed outer conductor, so that the first guide portion is A guide part is constantly abutting the fixed outer conductor; The upper end of the floating outer conductor is bent and extended to form the second guide portion, the second guide portion is in the shape of an arc surface, and a guide slope is provided at the entrance of the insertion cavity of the external plug-in. When the external plug-in is inserted, the second guide portion is guided into the insertion cavity along the guide slope, and constantly abuts against the inner wall of the insertion cavity.

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