CN201117837Y - micro coaxial connector - Google Patents

Abstract

The utility model discloses a miniature coaxial connector for connect the coaxial cable who has center conductor and metallic braid, including insulator, conductive terminal and electrically conductive casing. The insulating body comprises a seat body provided with a through hole. One end of the conductive terminal is connected with the central conductor, and the other end is provided with a pair of contact parts arranged in the through hole. The conductive shell comprises a sleeve joint part, an outer cover part extending from the front side of the sleeve joint part to the rear side of the sleeve joint part, and positioning arms extending from two sides of the sleeve joint part to the rear side respectively. The seat body is arranged in the sleeving part. The outer cover part is provided with a slot, and the positioning arm is provided with a hook part. The positioning arm is clamped against the rear part of the seat body of the insulating body and clamps the metal braid layer, so that the connection between the miniature coaxial connector and the coaxial cable is more reliable. The hook part on the positioning arm is clamped at the open slot of the outer cover part, thereby preventing the outer cover part from deflecting when bending downwards.

Description

micro coaxial connector

technical field

The utility model relates to a connector, in particular to a miniature coaxial connector which is stably connected with a coaxial cable and is easy to assemble.

Background technique

With the development of portable electronic products in the direction of thinner and smaller, the connectors of signal transmission wires are becoming smaller and smaller, and the requirements for the connection and manufacturing methods of the internal assembly components are also getting higher and higher. The structure of an existing miniature coaxial connector is shown in Figure 1. The miniature coaxial connector includes a signal terminal 1', an insulator 2' and a conductor 3', wherein the signal terminal 1' is provided with welding 14' and two opposite inwardly inclined plate-shaped guide joints 15' extending downward from both ends of the welding part 14', and a pair of protruding posts 16' are vertically provided at the rear end of the signal terminal 1', and a pair of protruding posts 16' are formed between the two protruding posts 16'. There is a notch 161' for the center wire 41' of the coaxial cable 4' to be placed. When assembling, weld the central wire 41' of the coaxial cable 4' to the welding part 14' of the signal terminal 1' by welding, and then put the welded signal terminal 1' into the seat opened on the insulator 2' The hole 24', and then put the insulator 2' into the sleeve groove 311' of the first conductor 31' of the conductor 3'. The first conductor 31' and the second conductor 32' are integrally molded and pressed, and one end of the first conductor 31' is formed with a vertical connecting surface 33', and the second conductor 32' is connected to the other end of the connecting surface 33', so that the first The conductor 31' is perpendicular to the second conductor 32'. After the above assembly is completed, use a jig to bend the vertical second conductor 32' towards the first conductor 31' to press the cover body 22' extending upward from the upper side of the front end of the insulator 2' to press down on the signal terminal 1', and the second conductor 32' presses down on the upper cover 22'. Finally, press the front curved arm 321', the middle curved arm 322' and the rear curved arm 323' on both sides of the second conductor 32' one by one on the first conductor 31' and the coaxial cable 4'.

However, when using a jig to bend the vertical second conductor 32' toward the first conductor 31' to press the cover, the miniature coaxial connector often deflects. When the plate-shaped conductive part 15' of the signal terminal 1' is mated with the mating connector, it is easy to buckle and it is difficult to control the amount of interference. The signal terminal 1' and the coaxial cable 4' are connected by welding, and the welding process is prone to produce unknown residual substances such as tin slag, which affects the electronic characteristics of the product, and manual welding is time-consuming and labor-intensive, which limits the production capacity of the product, and The quality is also less stable.

Utility model content

The purpose of the utility model is to provide a miniature coaxial connector which is stable in connection with the coaxial cable and easy to assemble in view of the defects and deficiencies in the prior art.

In order to achieve the above purpose, the utility model miniature coaxial connector is used to connect a coaxial cable with a central conductor and a metal braiding layer, including an insulating body, a conductive terminal and a conductive shell. The insulating body includes a seat body provided with a through hole and a sleeve communicating with the through hole. One end of the conductive terminal is connected to the central conductor of the coaxial cable, and the other end is provided with a pair of contact parts, and the contact parts of the conductive terminal are placed in the through hole. The conductive housing includes a socket part, an outer cover part extending backward from the front side of the socket part, and a pair of positioning arms formed by extending backward from both sides of the upper part of the socket part. The outer cover has a slot, and the positioning arm is provided with a hook. The seat body and the sleeve of the insulating body are placed in the sleeve part, the positioning arm is stuck against the rear part of the seat body of the insulating body and clamps the metal braiding layer of the coaxial cable, and the hook part is engaged with the slot .

As mentioned above, the positioning arm of the conductive housing of the miniature coaxial connector of the present invention is locked against the rear part of the seat body of the insulating body, so that the insulating body and the conductive housing are not easily displaced from each other. The hook portion of the positioning arm is engaged with the slot of the outer cover, thereby preventing the outer cover from being deflected when it is bent downward.

Description of drawings

FIG. 1 is a perspective view of various components of the prior art miniature coaxial connector before assembly, and coaxial cables are also shown in the figure.

Fig. 2 is a perspective view of each component of an embodiment of the miniature coaxial connector of the present invention before assembly, and coaxial cables are also shown in the figure.

FIG. 3 is an exploded perspective view of each component and coaxial cable in FIG. 2 from another angle.

FIG. 4 is a perspective view of a state during the assembly process of each component of the miniature coaxial connector shown in FIG. 2 and the coaxial cable.

FIG. 5 is a three-dimensional combined view of the miniature coaxial connector and the coaxial cable shown in FIG. 2 .

FIG. 6 is a three-dimensional combination view of another angle of the micro coaxial connector and the coaxial cable shown in FIG. 5 .

The reference signs of each component in the figure are explained as follows:

Signal Terminal 1’ Soldering 14’

Conductor 15’ Boss 16’

Notch 161’ Insulator 2’

Upper cover body 22’ Seat hole 24’

Conductor 3’ First Conductor 31’

Slot 311’ Second conductor 32’

Front Curved Arm 321’ Middle Curved Arm 322’

Rear bent arm 323’ connection surface 33’

Coaxial Cable 4’ Center Conductor 41’

Conductive terminal 1 connection plate 10

Contact part 11 Positioning part 12

Clipping part 13 Slit 131

Insulation body 2 seat body 20

Through hole 201 Block 202

Loading slot 203 Positioning slot 204

Sleeve 21 Upper cover 22

Conductive shell 3 Socket part 30

Card slot 301 Outer cover 31

Bending part 311 Pressing plate part 312

Convex 3121 Slotted 3122

Covering Department 313 Thread Clamping Department 314

Bump 3141 Positioning arm 32

Clamping arm 321 Clamping arm 322

Thread clamp arm 323 hook part 324

Coaxial cable 4 center conductor 40

Inner insulating layer 41 Metal braiding layer 42

Outer insulating layer 43

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

For the convenience of description, it is specially stipulated that the direction of the micro-coaxial connector in the following embodiments is based on FIG. 2 .

Please refer to FIG. 2 and FIG. 3 , the miniature coaxial connector of the present invention is used for connecting a coaxial cable 4 , and the miniature coaxial connector includes a conductive terminal 1 , an insulating body 2 and a conductive shell 3 .

The insulating body 2 includes a base body 20 with a through hole 201 , a sleeve 21 communicating with the through hole 201 , and a downwardly bendable upper cover 22 extending upward from the front upper end of the base body 20 . The outer surface of the front part of the seat body 20 is provided with two blocks 202 protruding outwards, and the rear part of the seat body 20 is provided with a loading groove 203 communicated with the through hole 201, and the rear end of the loading groove 203 is connected to the outside connected. Positioning slots 204 are defined on both side walls of the loading slot 203 .

The conductive terminal 1 has a connecting plate 10 , and a pair of contact portions 11 extend downward from both sides of one end of the connecting plate 10 . The two contact portions 11 are relatively inwardly inclined and their ends are lip-shaped. Both sides of the middle part of the connecting plate 10 respectively protrude outwards with a sheet-shaped positioning part 12, and the two sides of the rear end of the connecting plate 10 are bent and extended upwards to form a ring-shaped clamping part 13, and a slit is formed on the clamping part 13 131. The connecting plate 10 is accommodated in the loading groove 203 , the contact portion 11 is inserted into the through hole 201 , and the positioning portion 12 and the clamping portion 13 are locked in the positioning groove 204 .

The conductive housing 3 includes a sleeve portion 30 , an outer cover portion 31 and a positioning arm 32 . The sleeve portion 30 is in a through shape, and the front portion of the sleeve portion 30 is provided with a slot 301 corresponding to the locking block 202 of the insulating body 2 . The outer cover portion 31 has a bending portion 311 , a pressing plate portion 312 , a covering portion 313 and a clamping portion 314 . Wherein, a bending portion 311 extends upward from the front side of the sleeve portion 30 , and the bending portion 311 can be bent downward. The upper end of the bent portion 311 extends upwards to form a plate-shaped pressing plate portion 312 , and a strip-shaped convex portion 3121 protrudes from the middle of the pressing plate portion 312 . Two sides of the pressing plate part 312 are bent vertically in turn to extend a pair of covering parts 313 and two pairs of clamping parts 314 , and each clamping part 314 is provided with a protruding block 3141 inside. Two slots 3122 are respectively defined between the two clamping portions 314 along both sides of the pressing plate portion 312 .

A pair of positioning arms 32 extend backwards from both sides of the upper part of the sleeve part 30 , and the positioning arms 32 have a pair of fastening arms 321 which are respectively connected to one side of the upper part of the socket part 30 and are in the shape of a long piece. The end is bent obliquely inwardly to form a locking arm 322 , and the end of the locking arm 322 is bent backward to form a clamping arm 323 , and a hook portion 324 protrudes from the end of the clamping arm 323 .

The coaxial cable 4 has a central conductor 40 , an inner insulation layer 41 , a metal braid 42 and an outer insulation layer 43 . Part of the outer insulating layer 43, part of the metal braiding layer 42 and part of the inner insulating layer 41 are stripped to sequentially expose part of the metal braiding layer 42, part of the inner insulating layer 41 and part of the center conductor 40.

Please refer to Fig. 4 to Fig. 6, when the miniature coaxial connector of this embodiment is assembled:

Firstly, the central conductor 40 of the coaxial cable 4 passes through the clamping portion 13 of the conductive terminal 1 and is placed above the connecting portion 10 .

Next, put the conductive terminal 1 connected with the coaxial cable 4 into the insulating body 2, put the contact part 11 into the through hole 201 of the seat body 20, put the connecting plate 10 into the placement groove 203, and place the positioning part 12 and the locking portion 13 are locked in the positioning groove 204, so that the conductive terminal 1 and the insulating body 2 are positioned with each other.

Next, put the insulating body 2 into the conductive housing 3, put the seat body 20 and the sleeve 21 into the sleeve portion 30, position the block 202 in the slot 301, and position the locking arm 321 of the positioning arm 32 against the locking arm 321. The arm 322 abuts against the rear of the base body 22 , so that the position of the insulating body 2 does not deviate or rotate relative to the conductive shell 3 , so that the insulating body 2 and the conductive shell 3 are firmly combined.

Next, bend the upper cover 22 downward and press the central conductor 40 on the connection plate 10 of the conductive terminal 1, and bend the outer cover 31 of the conductive housing 3 downward and press it tightly on the upper cover 22 Above, the hook portion 324 of the positioning arm 32 engages with the slot 3122 of the pressing plate portion 312 , thereby preventing the outer cover portion 31 from being deflected when it is bent downward. The convex portion 3121 of the pressing plate portion 312 presses down the upper cover portion 22 , so that the conductive terminal 1 and the coaxial cable 4 conduct and reliably connect.

Finally, the covering part 313 of the conductive shell 3 covers the sleeve part 30, bends the clamping part 314 and covers the positioning arm 32 and the coaxial cable 4, so that the clamping arm 323 of the positioning arm 32 is more firm Clamp the metal braid 42 of the coaxial cable 4, and the protrusion 3141 of the clamping part 314 and the convex part 3121 of the pressing plate part 312 press the coaxial cable 4 up and down, so that the utility model miniature coaxial connector and The connection between the coaxial cables 4 is stronger.

As mentioned above, the locking arm 321 and the locking arm 322 of the conductive housing 3 of the present invention are locked against the rear part of the seat body 20 of the insulating body 2 , so that the insulating body 2 and the conductive housing 3 are not easily displaced from each other. After the outer cover part 31 and the upper cover part 22 are bent downward, together with the conductive terminal 1, the central conductor 40 of the coaxial cable 4 is pressed up and down, and the wire clamping arm 323 clamps the metal braid 42 of the coaxial cable 4, This makes the connection between the miniature coaxial connector and the coaxial cable 4 more reliable. The hook portion 324 of the positioning arm 32 engages with the slot 3122 of the outer cover 31 , thereby preventing the outer cover 31 from deflecting when it is bent downward. When plugging and unplugging the micro-coaxial connector and the butt connector, the contact part 11 of the conductive terminal 1 is designed in a lip shape, which makes the plugging action smoother, and it is easy to control the amount of interference between the contact part 11 and the butt connector and is less prone to frustration. Bend.

To sum up, the miniature coaxial connector of the present invention has disclosed related technologies in detail and in detail through the above-mentioned embodiments and related drawings, so that those skilled in the art can implement them accordingly. The above-mentioned embodiments are only used to illustrate the utility model, rather than to limit the utility model, and the scope of rights of the utility model should be defined by the claims of the utility model. As for the change of the number of components described in this specification or the replacement of equivalent components, etc., they should still belong to the right scope of the present utility model.

Claims (7)

1. mini-coax connector, in order to connect a coaxial cable with center conductor and wire sheathing, comprise insulating body, conducting terminal and conductive shell, insulating body comprises that one is provided with the pedestal and a sleeve that is communicated with through hole of through hole, conducting terminal one end connects the center conductor of coaxial cable, the other end is provided with a contact site that is opposite in the through hole, conductive shell comprises the outer cap that the front side of socket part and socket part extends back, the pedestal of described insulating body and sleeve place in the socket part, it is characterized in that: the both sides on top, socket part extend back and form a pair of registration arm, outer cap has a fluting, this registration arm is provided with a hook part, registration arm fastens the pedestal rear portion of described insulating body and the wire sheathing of clamping coaxial cable, and the hook part is sticked in the fluting place of outer cap.

2. mini-coax connector as claimed in claim 1, it is characterized in that: described registration arm has the fixing arm that is connected with the both sides on top, socket part and is the lengthy motion picture shape, fix the terminal oblique inner bending of arm forms fasten arm and fasten the arm end bends the clamp arm that extends to form backward, and the clamp arm is terminal to protrude described hook part; Fix arm and fasten the pedestal rear portion that arm fastens described insulating body, the wire sheathing of the described coaxial cable of clamp arm clamping.

3. mini-coax connector as claimed in claim 1 is characterized in that: upper end, described pedestal front side extends back a upper cover part; Outer cap also comprises a kink, tabular pressing plate portion, a coating portion and a clamp portion, the front side of described socket part extends upward kink, kink extends back and forms described pressing plate portion, pressing plate portion middle part is convexly equipped with a protuberance, the both sides of pressing plate portion vertically bend successively extends coating portion and clamp portion, and clamp portion inboard convexes with projection; This pressing plate portion is positioned on the upper cover part, the protuberance of pressing plate portion compresses described upper cover part, upper cover part is pressed in the center conductor of coaxial cable on the conducting terminal, coating portion coats the socket part, clamp portion coats registration arm and coaxial cable, and the protuberance of the projection of clamp portion and pressing plate portion compresses coaxial cable up and down.

4. mini-coax connector as claimed in claim 1 is characterized in that: convex with fixture block on the described pedestal, offer on the described socket part and draw-in groove that this fixture block fastens.

5. mini-coax connector as claimed in claim 1, it is characterized in that: described conducting terminal has a plate, the both sides of connecting plate one end are along extending described contact site downwards, the both sides at connecting plate middle part outwards protrude out a location division respectively, the both sides of connecting plate rear end upwards bend the Access Division that extends to form a central column, are formed with on the Access Division and crack; The center conductor of described coaxial cable passes the Access Division and places the top of connecting plate.

6. mini-coax connector as claimed in claim 5, it is characterized in that: offer a mounting groove that is communicated with through hole on the described pedestal backward, the connecting plate of described conducting terminal places in the mounting groove, offers the location notch of the location division and the Access Division of ccontaining conducting terminal on the mounting groove two side.

7. mini-coax connector as claimed in claim 5 is characterized in that: the relative introversion of described two contact sites, the end of contact site is a lip.

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