CN115275723A

CN115275723A - Radio frequency terminal connection structure

Info

Publication number: CN115275723A
Application number: CN202211173721.3A
Authority: CN
Inventors: 胡振
Original assignee: Jiangsu Zhenghe Technology Co ltd
Current assignee: Jiangsu Zhenghe Technology Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2022-11-01
Anticipated expiration: 2042-09-26
Also published as: CN115275723B

Abstract

The present invention relates to a radio frequency terminal connection structure, comprising: a radio frequency terminal and a circuit board; the radio frequency terminal includes: the plug-in connector comprises a plug-in body, an outer shielding cover, a connecting conductor and an inner insulator for mounting the connecting conductor; the inner insulator is an integrally formed plastic piece; the connecting conductor is arranged in the inner insulator as an insert; the inner insulator includes: the locking device comprises a main body, a column, an L-shaped locking hook and a clamping hook; the column body is arranged at the front end of the main body; the L-shaped latch hook is arranged at the rear end of the main body; the circuit board is provided with a lock hole; the L-shaped locking hook is inserted into the locking hole and used for hooking the orifice of the locking hole so as to prevent the radio frequency terminal from toppling forwards; the hook is arranged on the main body; the outer shielding cover is provided with a hook hole which forms a buckle connection with the hook; the plug body includes: the round sleeve-shaped inserting part and the plurality of first bending flanges; the first bending flanging is arranged at the rear end of the inserting part; the plug-in connection part is sleeved on the periphery of the column body. The invention has the beneficial effects that: effectively prevent that the radio frequency terminal from toppling over forward, ensure the welding effect.

Description

Radio frequency terminal connection structure

Technical Field

The invention relates to a radio frequency terminal connecting structure.

Background

When the radio frequency terminal is soldered to the circuit board, the straight pin of the radio frequency terminal is firstly inserted into the mounting hole of the PCB, and then reflow soldering is carried out. Because the front end of the radio frequency terminal is relatively heavy, the front end is inclined downwards, the straight pin at the rear end is separated from the mounting hole of the circuit board, and the welding effect is influenced.

Disclosure of Invention

The present invention is directed to a radio frequency terminal connection structure, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

a radio frequency terminal connection structure comprising: a radio frequency terminal and a circuit board; the radio frequency terminal includes: the plug-in connector comprises a plug-in body, an outer shielding cover, a connecting conductor and an inner insulator for mounting the connecting conductor;

the inner insulator is an integrally formed plastic piece; the connecting conductor is arranged in the inner insulator as an insert; the inner insulator includes: the locking device comprises a main body, a column, an L-shaped locking hook and a clamping hook; the column body is arranged at the front end of the main body; the L-shaped latch hook is arranged at the rear end of the main body; the circuit board is provided with a lock hole; the L-shaped locking hook is inserted into the locking hole and used for hooking the orifice of the locking hole so as to prevent the radio frequency terminal from toppling forwards;

the hook is arranged on the main body; the outer shielding cover is provided with a hook hole which forms a buckle connection with the hook;

the plug body includes: the circular sleeve-shaped plug-in part and the plurality of first bending flanging are arranged on the base; the first bending flanging is arranged at the rear end of the insertion part; the inserting part is sleeved on the periphery of the column body; the rear side of the first bending flanging is abutted against the main body; the front side of the first bending flanging is abutted against the inner wall surface of the outer shielding case;

a U-shaped notch groove is formed on the front side of the outer shielding cover; the main body is wrapped in the outer shielding case; the whole formed by the inserting part and the column body is positioned in the U-shaped notch groove;

the bottom of the outer shielding cover is provided with a plurality of pins for welding to a circuit board; the circuit board is provided with pin welding holes for inserting the pins; the outer shielding cover is fixedly arranged to the whole body formed by the inner insulator and the plug body; after the pins are inserted into the pin welding holes, the positions of the L-shaped lock hooks in the lock holes are fixed by fixing the positions of the outer shielding cases so as to keep the L-shaped lock hooks hooked on the openings of the lock holes.

As a further scheme of the invention: the plug-in body also comprises a plurality of second bent turned edges; the second bending flanging is positioned at the rear end of the insertion part; the rear side of the second bending flanging is abutted against the outer wall surface of the outer shielding case; the first bending flanging and the second bending flanging are positioned on two sides of the outer shielding case; the plug-in body is an integrally formed whole body; the inserting part is formed by mutually pressing and rolling the head end and the tail end of a metal sheet into a round sleeve shape; bending ribs are arranged at the head end and the tail end of the metal sheet;

the inner insulator further includes: a saddle; the supporting platform is positioned below the inserting part; the support table and the column body clamp and fix the inserting part from two sides; the supporting platform is provided with a clamping groove; the inserting part is sleeved on the periphery of the column, and the bent ribs at the head end and the tail end of the metal sheet are inserted into the clamping grooves, so that the head end and the tail end of the metal sheet are prevented from being far away from each other.

As a further scheme of the invention: the length of the support stand protruding out of the main body is equal to the length of the cylinder protruding out of the main body.

As a further scheme of the invention: the connection conductor includes: the socket comprises a socket barrel for electrical connection and a socket pin for welding with a circuit board; the plug pins are connected to the plug barrel; the inner insulator further includes: the fixing block is used for fixing the inserting pins and increasing the stability of the inserting pins; the plug pins are embedded in the fixing blocks.

As a further scheme of the invention: the bottom of the fixing block is higher than the top of the pin welding hole, so that when the plug pin is inserted into the circuit board, the plug pin is partially exposed above the circuit board; the main body is enclosed into a U-shaped area which is open backwards; the fixing block is fixed to the main body and located in the U-shaped area; a hollow observation port is formed at the rear side of the outer shielding cover; the part of the inserting pin exposed above the circuit board can be observed through the hollow observing port.

As a further scheme of the invention: the circuit board is provided with an inserting pin slot for inserting the inserting pin and guiding the inserting pin to slide; the sliding direction of the plug pin guided by the plug pin groove is parallel to the sliding direction of the L-shaped lock hook in the lock hole.

As a further scheme of the invention: the number of the L-shaped lock hooks is two; the inner insulator further includes: positioning a block; the positioning block is arranged at the front end of the main body; a guide groove for the positioning block to insert and guide the positioning block to slide is formed on the edge of the circuit board; the locating piece and two L type latch hooks are triangle-shaped and arrange.

As a further scheme of the invention: the main body includes: a front wall and two side walls; two side walls are connected to two ends of the front wall; the post is fixed to the front wall; the bottom of the front wall is provided with a positioning block; the bottoms of the two side walls are provided with L-shaped latch hooks; the outer wall surfaces of the two side walls are both provided with a clamping hook.

As a further scheme of the invention: the outer side surfaces of the two side walls which are far away from each other and the rear ends of the two side walls are both provided with abutting ribs which are abutted against the inner wall surface of the outer shielding cover.

As a further scheme of the invention: the sliding direction of the positioning block in the guide groove is parallel to the sliding direction of the L-shaped lock hook in the lock hole.

The invention has the advantages that: effectively prevent that the radio frequency terminal from toppling over forward, ensure the welding effect.

The weight of the front end of the radio frequency terminal is transmitted to the circuit board through the L-shaped locking hook, and the forward tilting effect of the radio frequency terminal is counteracted by the circuit board, so that the radio frequency terminal is prevented from tilting forwards. The circuit board is locked through the L-shaped lock hook, and the position of the L-shaped lock hook relative to the circuit board is locked through the installation of the outer shielding cover, so that the radio frequency terminal is locked on the circuit board, the radio frequency terminal is prevented from moving, the L-shaped lock hook is prevented from being separated from the circuit board, and the radio frequency terminal is prevented from toppling forwards. The outer shielding cover and the inner insulator are locked in a buckling connection mode, the outer shielding cover is prevented from being separated from the inner insulator, and therefore the outer shielding cover is guaranteed to be fixed before the radio frequency terminal is welded. Under the fixed condition of outer shield cover, the position locking of L type latch hook to avoid the radio frequency terminal to topple over.

The arrangement of the connecting structure of the plug body and the inner insulator effectively improves the reliability of the fixation of the plug body. The clamping grooves are formed in the supporting table, the bending ribs at the two ends of the metal sheet are clamped by the clamping grooves, the head end and the tail end of the metal sheet can be prevented from being away from each other, and the looseness of the inserting body is avoided.

After the outer shielding case is installed, because the first bending flanging and the second bending flanging are respectively arranged on two sides of the outer shielding case, the insertion force generated by the insertion and extraction of the insertion part along with the external terminal is directly transmitted to the outer shielding case and then transmitted to the circuit board, and the insertion part is prevented from sliding and loosening on the column body.

The length of the free end of the plug pin can be shortened through the fixing block, so that the problem that the plug pin is not accurately inserted into a circuit board due to deflection is solved, and the mounting reject ratio is reduced. The hollow observation port can ensure that the inserting pins are accurately inserted in place to reduce the reject ratio, and the inserting pins can be reworked in time to correct the inserting pins when faults are found.

Through the setting of locating piece and two L type latch hooks, promote the stability of interior insulator installation and avoid interior insulator to install the problem that takes place to deflect in the horizontal plane, effectively realize the location of interior insulator on the circuit board.

The mode that adopts L type latch hook to connect is prevented empting, compares the mode that initiatively increases the counter weight, has better adaptation effect to the socket body of different specification length. Meanwhile, the mode of transferring acting force is that the L-shaped lock hook does not depend on the counterweight, so that the weight can be further reduced in a mode of reducing the wall thickness, and compared with a mode of increasing the counterweight, the material cost is saved.

Other features and advantages of the present invention will be disclosed in more detail in the following detailed description of the invention and the accompanying drawings.

Drawings

Fig. 1 is a schematic view of a radio frequency terminal connection structure of the present invention;

fig. 2 is a schematic view of a circuit board of one of the rf terminal connection structures of fig. 1;

fig. 3 is a perspective view from the front side of the rf terminal connection structure of fig. 1;

fig. 4 is a front view of the rf terminal of fig. 3;

fig. 5 is a perspective view of the rf terminal of fig. 4 from a rear perspective;

fig. 6 is a perspective view from the bottom side of the rf terminal of fig. 4;

fig. 7 is a bottom view of the rf terminal of fig. 4;

fig. 8 is an exploded perspective view of the rf terminal of fig. 3, showing the outer shield separated;

fig. 9 is an exploded plan view of the rf terminal of fig. 8;

fig. 10 is an exploded perspective view from another perspective of the rf terminal of fig. 8;

FIG. 11 is a schematic view of the structure of FIG. 8 with the outer shield removed;

FIG. 12 is a perspective view from another perspective of the structure of FIG. 11;

FIG. 13 is a plan view of the structure of FIG. 11;

FIG. 14 is an exploded view of the structure of FIG. 11, showing the plug body disconnected;

FIG. 15 is a front view of the structure of FIG. 14;

FIG. 16 is a bottom view of the structure of FIG. 15;

FIG. 17 is an exploded view from another perspective of the structure of FIG. 14;

fig. 18 is a schematic view of the plug body of the rf terminal of fig. 3;

FIG. 19 is a schematic view of the structure of FIG. 14 with the plug body removed;

FIG. 20 is a perspective view of the structure of FIG. 19 from another perspective;

FIG. 21 is a front view of the structure of FIG. 19;

fig. 22 is a bottom view of the structure of fig. 21.

List of reference numerals: a radio frequency terminal 10; the plug-in connector comprises a plug-in connector 11, a plug-in part 111, a first bending flange 112, a second bending flange 113 and a bending rib 114; the outer shielding case 12, the hook hole 121, the U-shaped notch groove 122, the pin 123 and the hollow observation port 124; a connecting conductor 13, a plug barrel 131, a plug pin 132; the inner insulator 14, the main body 141, the front wall 1411, the side wall 1412, the abutting rib 1413, the column 142, the l-shaped locking hook 143, the hook 144, the holder 145, the clamping groove 1451, the fixing block 146 and the positioning block 147; circuit board 20, lock hole 21, pin soldering hole 22, plug pin slot 23, guide slot 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to fig. 22, in an embodiment of the present invention, a radio frequency terminal connection structure includes: radio frequency terminal 10 and circuit board 20. The radio frequency terminal 10 includes: an interposer 11, an outer shield 12, a connection conductor 13, and an inner insulator 14. The inner insulator 14 is used to mount the connection conductor 13 and enables insulation between the interposer 11 and the connection conductor 13. When the radio frequency terminal 10 and the external terminal are plugged, the plug body 11 is in contact with the plug bush of the external terminal to achieve communication, and the connecting conductor 13 is in communication with the core inside the external terminal.

In one embodiment, the inner insulator 14 is an integrally formed plastic part. The connection conductor 13 is provided as an insert into the inner insulator 14. Specifically, the connection conductor 13 is integrally molded and fixed as a single body with the inner insulator 14 as a metal insert.

As a preferred embodiment, the inner insulator 14 includes: main body 141, column 142, L-shaped latch hook 143 and catch 144.

The cylinder 142 is disposed at the front end of the body 141. The plug body 11 is fixed to the column 142 in a sleeved manner. The L-shaped latch hook 143 is disposed at the rear end of the body 141. The circuit board 20 is provided with a locking hole 21. The L-shaped lock hook 143 is inserted into the lock hole 21 to be slidable in the lock hole 21. The L-shaped latch hook 143 may hook the aperture of the latch hole 21 after moving into place, thereby preventing the rf terminal 10 from tipping forward.

During installation, the L-shaped locking hook 143 is first inserted into the locking hole 21 in alignment with the locking hole 21, and then the L-shaped locking hook 143 is slid backward so that the L-shaped locking hook 143 slides backward along the locking hole 21 until hooking the aperture of the locking hole 21. The rf terminal 10 and the circuit board 20 are connected into a whole by the L-shaped latch hook 143, so that the center of gravity of the whole is moved backward, thereby preventing the rf terminal 10 from tilting forward due to the heavy weight of the front end of the rf terminal 10. Or the weight of the front end of the rf terminal 10 is transmitted to the circuit board 20 through the L-shaped latch hook 143, so that the circuit board 20 counteracts the forward tilting of the rf terminal 10, thereby preventing the rf terminal 10 from tilting forward.

Specifically, the hook 144 is disposed on the main body 141. The outer shield 12 is formed with a hook hole 121 which forms a snap connection with the hook 144. The outer shield 12 is locked with the inner insulator 14 by means of a snap-fit connection.

As a specific embodiment, the plug body 11 includes: a sleeve-shaped plug-in part 111 and a plurality of first turned-over edges 112. The first bending flange 112 is disposed at the rear end of the insertion portion 111. The insertion portion 111 is fitted around the outer circumference of the cylinder 142. The rear side of the first folded cuff 112 abuts the main body 141. The front side of the first folded flange 112 abuts against the inner wall surface of the outer shield shell 12.

A U-shaped notch groove 122 is formed on the front side of the outer shield 12. The body 141 is enclosed in the outer shield case 12. The entire body formed by the plug portion 111 and the post 142 is located in the U-shaped notched groove 122.

The bottom of the outer shield 12 is formed with a plurality of pins 123 for soldering to the circuit board 20. The circuit board 20 is formed with pin soldering holes 22 into which the pins 123 are inserted. The outer shield shell 12 is fixedly mounted to the whole consisting of the inner insulator 14 and the plug body 11.

After the pins 123 are inserted into the pin welding holes 22, the position of the L-shaped locking hook 143 in the locking hole 21 is fixed by fixing the position of the outer shield 12 so as to keep the L-shaped locking hook hooked on the opening of the locking hole 21.

When mounting, the socket body 11 is first fitted over the post 142 of the inner insulator 14, and then the inner insulator 14 is mounted on the circuit board 20 with the L-shaped latch hooks 143 hooked on the circuit board 20. Finally, the outer shield 12 is mounted so that the pins 123 of the outer shield 12 are inserted into the pin soldering holes 22. Since the position of the outer shield 12 is restricted by the pin 123, the outer shield 12 is prevented from sliding forward, and at this time, since the outer shield 12 is fixed integrally with the inner insulator 14, the inner insulator 14 is prevented from moving forward, that is, the inner insulator 14 cannot move forward, so that the L-shaped latch hook 143 keeps a position of hooking the circuit board 20. Namely, the position of the fixed L-shaped latch hook 143 in the latch hole 21 keeps the L-shaped latch hook hooked on the aperture of the latch hole 21. The catch 144 prevents the outer shield 12 from moving upwardly away from the inner insulator 14, holding the prongs 123 inserted into the prong solder apertures 22, and locking the position of the prongs 123. The inner insulator 14 and outer shield 12 are simultaneously locked to lock the entire rf terminal 10 in place on the circuit board 20. The forward tipping problem caused by the heavy weight of the head of the rf terminal 10 is effectively avoided by the structural optimization of the inner insulator 14 and the structural cooperation with the outer shield 12.

In a preferred embodiment, the plug body 11 further comprises a plurality of second bent flanges 113. The second bent flange 113 is located at the rear end of the insertion part 111. The rear side of the second bent flange 113 abuts against the outer wall surface of the outer shield shell 12. The first and second

bent flanges

112 and 113 are located on both sides of the outer shield 12.

The socket body 11 is an integrally formed unit. The plug-in part 111 is made by rolling the two ends of the metal sheet close to each other into a round sleeve shape. The bent ribs 114 are disposed at the head and tail ends of the metal sheet. The plug-in body 11 is processed by adopting a metal sheet stamping and rolling mode, the processing difficulty is low, and the yield is high.

The inner insulator 14 further includes: a gantry 145. The pallet 145 is located below the insertion part 111. The fixing insertion part 111 is held by the holder 145 and the cylinder 142 from both sides. The pallet 145 is formed with a clip groove 1451. The bending ribs 114 at the head and tail ends of the thin metal plate are inserted into the clip groove 1451 while the insertion portion 111 is fitted around the outer circumference of the cylinder 142, thereby preventing the head and tail ends of the thin metal plate from moving away from each other.

The engagement of the saddle 145 with the post 142 can improve the reliability of the attachment of the socket 11. The clamping groove 1451 is formed in the supporting table 145, and the bending ribs 114 at the two ends of the metal sheet are clamped by the clamping groove 1451, so that the head end and the tail end of the metal sheet can be prevented from being away from each other, and the plug-in connector 11 is prevented from loosening. After the outer shielding case 12 is mounted, since the first bending flange 112 and the second bending flange 113 are respectively disposed on two sides of the outer shielding case 12, the insertion force generated by the insertion and extraction of the external terminal is directly transmitted to the outer shielding case 12 and then transmitted to the circuit board 20 by the insertion portion 111, so as to prevent the insertion portion 111 from sliding and loosening on the column 142.

In one embodiment, the length of the saddle 145 protruding from the body 141 is equal to the length of the cylinder 142 protruding from the body 141.

As a preferred embodiment, the connection conductor 13 includes: a socket barrel 131 and socket pins 132.

The socket 131 is used for electrical connection. Specifically, the insertion cylinder 131 is inserted into the core body inside the external terminal to communicate therewith. The socket pins 132 are used for soldering with the circuit board 20. The connection conductor 13 is L-shaped. The socket barrel 131 and the socket pins 132 are perpendicular to each other. The socket pins 132 are connected to the socket barrel 131.

The inner insulator 14 further includes: a fixing block 146. The fixing block 146 is used for fixing the plug pins 132 to increase the stability of the plug pins 132. The plug pins 132 are embedded in the fixing block 146. The length of the free end of the plug pin 132 can be shortened by the fixing block 146, thereby reducing the problem that the plug pin 132 is not accurately inserted into the circuit board 20 due to deflection and reducing the mounting defect rate.

In one embodiment, the bottom of the mounting block 146 is higher than the top of the pin solder hole 22, so that the plug pins 132 are partially exposed above the circuit board 20 when the plug pins 132 are inserted into the circuit board 20. The body 141 encloses a U-shaped area that is open to the rear. A securing block 146 is secured to body 141 and is located within the U-shaped region. The rear side of the outer shield 12 is formed with a hollowed-out viewing port 124. The portion of the plug pins 132 exposed above the circuit board 20 can be observed through the hollow viewing port 124. The hollow observation port 124 can ensure that the inserting pins 132 are accurately inserted in place, so that the reject ratio is reduced, and when a fault is found, the inserting pins 132 can be reworked in time to be corrected.

As a specific embodiment, the circuit board 20 is formed with a plug pin slot 23 into which the plug pin 132 is inserted and guides the plug pin 132 to slide. The direction in which the plug pin groove 23 guides the plug pin 132 to slide is parallel to the direction in which the L-shaped lock hook 143 slides in the lock hole 21. The plug pin groove 23 is elongated. The plug pins 132 are inserted to slide along the length of the plug pin grooves 23.

In a specific embodiment, the number of the L-shaped latch hooks 143 is two. The inner insulator 14 further includes: and a positioning block 147.

The positioning block 147 is provided at the front end of the body 141. The edge of the circuit board 20 is formed with a guide groove 24 into which the positioning block 147 is inserted and guides the positioning block 147 to slide. The positioning block 147 and the two L-shaped locking hooks 143 are arranged in a triangle. Through the arrangement of the positioning block 147 and the two L-shaped latch hooks 143, the mounting stability of the inner insulator 14 is improved, the problem that the inner insulator 14 is mounted in a horizontal plane and deflects is avoided, and the positioning of the inner insulator 14 on the circuit board 20 is effectively realized.

As a specific embodiment, the body 141 includes: a front wall 1411 and two side walls 1412. Two side walls 1412 are connected to both ends of the front wall 1411. Post 142 is secured to front wall 1411. The bottom of the front wall 1411 is provided with a positioning block 147. The bottoms of both side walls 1412 are provided with L-shaped locking hooks 143. The outer wall surfaces of the two side walls 1412 are provided with hooks 144.

As a specific embodiment, the outer side surfaces of the two side walls 1412 that are away from each other and the rear ends of the two side walls 1412 are each formed with an abutment rib 1413 that abuts against the inner wall surface of the outer shield shell 12. The front end of the inner insulator 14 abuts against the inner wall surface of the outer shield shell 12 via the first bent flange 112, and the rear end of the inner insulator 14 abuts against the inner wall surface of the outer shield shell 12 via the abutment rib 1413. The left and right sides of the inner insulator 14 are also abutted against the inner wall surface of the outer shield shell 12 via the abutment ribs 1413. The lower end of the inner insulator 14 and the lower end of the outer shield 12 contact the circuit board 20 and are supported by the circuit board 20.

As a specific embodiment, the sliding direction of the positioning block 147 in the guide groove 24 is parallel to the sliding direction of the L-shaped locking hook 143 in the locking hole 21.

When mounting, the socket 11 is first fitted to the post 142 of the inner insulator 14, and the socket 11 and the inner insulator 14 are fixed as a unit. During installation, the column 142 needs to be inserted into the insertion part 111, and the bending rib 114 needs to be inserted into the clamping groove 1451 of the bracket 145 in alignment until the first bending flange 112 abuts against the main body 141 and is installed in place. Then, the socket body 11 is mounted on the circuit board 20, and the L-shaped latch hook 143, the positioning block 147 and the socket pin 132 are respectively aligned with and inserted into the latch hole 21, the guide groove 24 and the socket pin groove 23 of the circuit board 20. The inner insulator 20 is then pushed back until the L-shaped latch hooks 143 catch the circuit board 20. The outer shield 12 is preferably mounted to the whole of the plug body 11 and the inner insulator 14. The outer shield 12 is mounted from top to bottom until the hooks 144 hook the hook holes 121 of the outer shield 12.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A radio frequency terminal connection structure comprising: a radio frequency terminal and a circuit board; the radio frequency terminal includes: the connector comprises an inserting body, an outer shielding cover, a connecting conductor and an inner insulator for mounting the connecting conductor;

the inner insulator is an integrally formed plastic piece; the connecting conductor is arranged in the inner insulator as an insert; the inner insulator includes: the device comprises a main body, a column, an L-shaped latch hook and a latch hook; the column body is arranged at the front end of the main body; the L-shaped lock hook is arranged at the rear end of the main body; the circuit board is provided with a lock hole; the L-shaped locking hook is inserted into the locking hole and used for hooking the orifice of the locking hole so as to prevent the radio frequency terminal from toppling forwards;

the clamping hook is arranged on the main body; the outer shielding cover is provided with a hook hole which is in buckled connection with the hook;

the plug body includes: the circular sleeve-shaped plug-in part and the plurality of first bending flanging are arranged on the base; the first bending flanging is arranged at the rear end of the inserting part; the inserting part is sleeved on the periphery of the cylinder; the rear side of the first bending flanging is abutted against the main body; the front side of the first bending flanging is abutted against the inner wall surface of the outer shielding case;

a U-shaped notch groove is formed in the front side of the outer shielding cover; the main body is wrapped in the outer shielding case; the whole formed by the inserting part and the column body is positioned in the U-shaped notch groove;

the bottom of the outer shielding cover is provided with a plurality of pins for welding to the circuit board; the circuit board is provided with pin welding holes for the pins to be inserted; the outer shield cover is fixedly mounted to the whole body formed by the inner insulator and the plug body; after the pins are inserted into the pin welding holes, the positions of the L-shaped lock hooks in the lock holes are fixed by fixing the positions of the outer shielding cases so as to keep the L-shaped lock hooks hooked on the holes of the lock holes.

2. A radio frequency terminal connection structure according to claim 1,

the plug-in body also comprises a plurality of second bent turned edges; the second bending flanging is positioned at the rear end of the insertion part; the rear side of the second bent flanging is abutted against the outer wall surface of the outer shielding case; the first bending flanging and the second bending flanging are positioned at two sides of the outer shielding case; the plug-in body is an integrally formed whole body; the insertion part is formed by rolling the head end and the tail end of a metal sheet close to each other into a round sleeve shape; bending ribs are arranged at the head end and the tail end of the metal sheet;

the inner insulator further includes: a saddle; the supporting platform is positioned below the inserting part; the support table and the column clamp and fix the inserting part from two sides; the supporting platform is provided with a clamping groove; the inserting part is sleeved on the periphery of the column, and the bending ribs at the head end and the tail end of the metal sheet are inserted into the clamping grooves so as to prevent the head end and the tail end of the metal sheet from being far away from each other.

3. A radio frequency terminal connection structure according to claim 2,

the length of the support stand protruding out of the main body is equal to the length of the column protruding out of the main body.

4. A radio frequency terminal connection structure according to claim 1,

the connection conductor includes: the socket comprises a socket barrel for electrical connection and a socket pin for welding with a circuit board; the inserting pins are connected to the inserting barrels; the inner insulator further includes: the fixing block is used for fixing the inserting pins and increasing the stability of the inserting pins; the inserting pins are embedded in the fixing blocks.

5. A radio frequency terminal connection structure according to claim 4,

the bottom of the fixing block is higher than the top of the pin welding hole, so that when the plug pin is inserted into the circuit board, the plug pin is partially exposed above the circuit board; the main body is enclosed into a U-shaped area which is open backwards; the fixing block is fixed to the main body and located in the U-shaped area; a hollow observation port is formed at the rear side of the outer shielding cover; the part of the inserting pin exposed above the circuit board can be observed through the hollow observing port.

6. A radio frequency terminal connection structure according to claim 5,

the circuit board is provided with an inserting pin groove for the inserting pin to insert and guide the inserting pin to slide; the direction of the plug pin groove for guiding the plug pin to slide is parallel to the direction of the L-shaped lock hook sliding in the lock hole.

7. A radio frequency terminal connection structure according to claim 1,

the number of the L-shaped lock hooks is two; the inner insulator further includes: positioning blocks; the positioning block is arranged at the front end of the main body; a guide groove for the positioning block to insert and guide the positioning block to slide is formed on the edge of the circuit board; the locating piece and two L-shaped lock hooks are arranged in a triangular mode.

8. A radio frequency terminal connection structure according to claim 7,

the main body includes: a front wall and two side walls; the two side walls are connected to two ends of the front wall; the post is secured to the front wall; the positioning block is arranged at the bottom of the front wall; the bottoms of the two side walls are provided with the L-shaped locking hooks; the outer wall surfaces of the two side walls are provided with the clamping hooks.

9. The RF terminal connection structure according to claim 8,

and the outer side surfaces of the two side walls which are far away from each other and the rear ends of the two side walls are respectively provided with an abutting rib which is abutted against the inner wall surface of the outer shielding case.

10. A radio frequency terminal connection structure according to claim 7,

the sliding direction of the positioning block in the guide groove is parallel to the sliding direction of the L-shaped lock hook in the lock hole.