CN216251203U

CN216251203U - Prevent USB TYPE-C connector of rosin joint

Info

Publication number: CN216251203U
Application number: CN202122790995.4U
Authority: CN
Inventors: 聂廷; 刘庆升
Original assignee: Shenzhen Zhongke Xingda Technology Co ltd
Current assignee: Shenzhen Zhongke Xingda Technology Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-04-08
Anticipated expiration: 2031-11-15

Abstract

The utility model discloses a USB TYPE-C connector for preventing cold joint, which comprises a PCB and a TYPE-C connector arranged on the PCB; the USB TYPE-C connector comprises a rubber core, a plurality of conductive terminals embedded in the rubber core and a first metal shell; a plurality of trapezoidal convex points are arranged on the lower surface of the main body part at intervals from left to right, a limiting convex strip is arranged on the rear side of each trapezoidal convex point, and the lower surfaces of the trapezoidal convex points and the lower surfaces of the limiting convex strips are flush; the connecting part of the conductive terminal penetrates through the trapezoidal salient points downwards from the main body part to extend, and the connecting part is bent backwards to enable the rear surface of the connecting part to abut against the lower surface of the limiting convex strip. The concrete position that connecting portion will bend is fixed a position with the help of trapezoidal bump during bending to receive its final angle of bending through this spacing sand grip, thereby guarantee can not appear the problem of transition bending, thereby can guarantee that the connection of connecting portion and PCB board is reliable, the vacancy can not appear, and then can guarantee that the rosin joint does not appear when follow-up welding, guarantee the product yield.

Description

Prevent USB TYPE-C connector of rosin joint

Technical Field

The utility model relates to the technical field of USB TYPE-C connectors, in particular to a USB TYPE-C connector capable of preventing cold solder joint.

Background

With the rapid development of the electronic industry, electronic products are increasingly lighter, thinner, shorter and shorter, so that the structural requirements and the performance requirements for the components of the electronic products are also increasingly higher, and the electric connector industry is the first place to begin. The new generation of USB Type-C connector has the characteristics of high frequency transmission speed, positive and negative insertion function and the like, and is more and more widely applied to electronic products.

In a common structure in the prior art, a USB TYPE-C connector is butted with a PCB in a manner that a solder leg of a terminal is directly butted with a solder pad of the PCB, and then the terminal is soldered, which is generally called as a clamping plate TYPE or a butt-joint TYPE; however, transition bending often occurs when the connector terminal is bent, and if the connector terminal is subjected to transition bending and then butted with a PCB, a void which is staggered up and down is generated, so that insufficient soldering is easily generated during subsequent soldering, and the yield of products is seriously affected.

Therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to the defects in the prior art, and the main objective of the present invention is to provide a soldering-free USB TYPE-C connector, which can effectively solve the problem that the product yield is affected by the insufficient solder in the conventional USB TYPE-C connector.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a USB TYPE-C connector for preventing cold joint comprises a PCB and a TYPE-C connector mounted on the PCB;

the USB TYPE-C connector comprises a rubber core, a plurality of conductive terminals embedded in the rubber core and a first metal shell; the rubber core is provided with a main body part and a tongue plate part, and the tongue plate part extends forwards on the front surface of the main body part; the first metal shell is provided with a through cavity penetrating through the front surface and the rear surface of the first metal shell, and the rubber core is inserted into the through cavity from the rear side to form a front insertion port; a plurality of trapezoidal convex points are arranged on the lower surface of the main body part at intervals from left to right, a limiting convex strip is arranged on the rear side of each trapezoidal convex point, and the lower surfaces of the trapezoidal convex points and the lower surfaces of the limiting convex strips are flush; the conductive terminal comprises an embedding part, an inserting part extending from one end of the embedding part and a connecting part extending from the other end of the embedding part, the inserting part is embedded in the tongue plate part, and the embedding part is embedded in the main body part; the connecting part penetrates through the trapezoidal salient points downwards from the main body part to extend, and the connecting part is bent backwards to enable the rear surface of the connecting part to abut against the lower surface of the limiting convex strip;

the front end of the upper surface of the PCB is provided with a plurality of trapezoidal grooves with the same number as the trapezoidal salient points, and the rear ends of the trapezoidal grooves are provided with limiting grooves matched with the limiting convex strips; the rear end of the limiting groove is provided with a plurality of copper sheets used for being connected with the connecting portion.

As a preferred embodiment: the lower surface of the main body part is provided with two limiting columns, and the two limiting columns are arranged on the left side and the right side of the main body part; limiting holes are formed in two sides of the front end of the PCB and penetrate through the upper surface and the lower surface of the PCB; the two limiting columns are inserted into the two limiting holes correspondingly.

As a preferred embodiment: the height of the limiting column is greater than the height of the trapezoidal convex point and the height of the limiting convex strip.

As a preferred embodiment: the connecting part is provided with a first groove and a second groove, the first groove is arranged on the front surface of the connecting part, and the second groove is arranged on the rear surface of the connecting part;

the centers of the first groove and the second groove in the vertical direction are located at the same height, the height between the upper and lower parts of the first groove is the same as the width between the front and rear parts of the connecting part, and the height between the upper and lower parts of the second groove is 1/2 of the height between the upper and lower parts of the first groove.

As a preferred embodiment: the upper surface and the lower surface of the main body part are provided with first buckling grooves, and the first metal shell is provided with first elastic arms buckled in the first buckling grooves;

when the rubber core is inserted into the through cavity from the rear end of the first metal shell, the outer surface of the main body part is abutted against the surface of the first metal shell, and the first elastic arm is buckled in the first buckling groove.

As a preferred embodiment: the second metal shell is arranged on the surface of the first metal shell;

the second metal shell comprises a main shell, side shells bent downwards from the left side and the right side of the main shell and a rear shell bent downwards from the rear side of the main shell, the rear shell is bent forwards and is provided with a folded lug, and the folded lug is provided with a first buckling window; the side shell is provided with a first buckling salient point, and the first buckling salient point is buckled in the first buckling window.

As a preferred embodiment: the side shell is provided with a plug pin.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, and specifically, the technical scheme includes that: through the trapezoidal salient points and the limiting convex strips on the lower surface of the main body part of the rubber core, after the connecting parts of the conductive terminals extend to the lower part of the main body part, the specific positions of the connecting parts to be bent are positioned by means of the trapezoidal salient points during bending, and the final bending angle of the connecting parts is limited by the limiting convex strips, so that the problem of transitional bending is avoided, the connecting parts and the PCB can be reliably connected, no vacant positions are generated, the condition that insufficient welding is generated during subsequent welding can be ensured, and the product yield is ensured;

moreover, the trapezoidal groove and the limiting groove are arranged at the corresponding positions of the PCB, after the USB TYPE-C connector is assembled with the PCB, the positions of the USB TYPE-C connector, front, back, left and right sides of the PCB can be reliably limited, displacement is not easy to generate, the connection accuracy of the connecting portion and the copper sheet is controlled, the condition that the connecting portion and the copper sheet are not connected in a staggered mode cannot occur, and the yield of products is further guaranteed.

To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic perspective view of a preferred embodiment of the present invention;

FIG. 2 is a schematic perspective view of another embodiment of the present invention;

FIG. 3 is a schematic perspective view of a USB TYPE-C connector and a PCB according to a preferred embodiment of the present invention;

fig. 4 is a bending view of the conductive terminal according to the preferred embodiment of the present invention.

The attached drawings indicate the following:

10. PCB board 11, trapezoidal recess

12. Limiting groove 13 and copper sheet

14. Positioning hole 20, USB TYPE-C connector

21. Rubber core 211 and main body part

212. Tongue portion 213 and trapezoidal bump

214. Limiting convex strip 215 and positioning column

22. Conductive terminal 221, embedding part

222. Plug-in part 223 and connecting part

2231. First and

second grooves

2232 and 2232

23. First metal shell 231, interface

232. First elastic arm 24 and second metal shell

241. Main body case 242, side case

2421. First buckling salient point 2422 and plug pin

243. Rear side housing 2431, hinge lug

2432. A first snap-fit window.

Detailed Description

Referring to fig. 1 to 4, a specific structure of a preferred embodiment of the utility model is shown, which is a TYPE-C connector for preventing cold joint, and includes a PCB 10 and a TYPE-C connector 20.

The USB TYPE-C connector 20 is installed on the PCB 10, and the USB TYPE-C connector 20 comprises a rubber core 21, a plurality of conductive terminals 22 embedded in the rubber core 21 and a first metal shell 23; the rubber core 21 is provided with a main body part 211 and a tongue plate part 212, and the tongue plate part 212 extends forwards from the front surface of the main body part 211; a plurality of trapezoidal salient points 213 are arranged on the lower surface of the main body part 211 at intervals from left to right, a limiting convex strip 214 is arranged on the rear sides of the trapezoidal salient points 213, and the lower surfaces of the trapezoidal salient points 213 and the lower surfaces of the limiting convex strips 214 are flush; the conductive terminal 22 includes an embedding portion 221, a plugging portion 222 extending from one end of the embedding portion 221, and a connecting portion 223 extending from the other end of the embedding portion 221, wherein the plugging portion 222 is embedded in the tongue portion 212, and the embedding portion 221 is embedded in the body portion 211; the connecting portion 223 extends downward from the body 211 through the trapezoidal protruding point 213, and the connecting portion 223 is bent backward so that the rear surface of the connecting portion 223 abuts against the lower surface of the stopper protrusion 214.

In connection with the above, the front end of the upper surface of the PCB 10 is provided with a plurality of trapezoidal grooves 11 with the same number as the trapezoidal bumps 213, and the rear ends of the plurality of trapezoidal grooves 11 are provided with the limiting grooves 12 adapted to the limiting convex strips 214; the rear end of the limiting groove 12 is provided with a plurality of copper sheets 13 for being connected with the connecting part 223. Specifically speaking, after the connecting portion of conductive terminal extends to the main part below, fix a position the concrete position that connecting portion will bend with the help of trapezoidal bump when bending to limited its final angle of bending through this spacing sand grip, thereby guarantee that the problem of transition bending can not appear, thereby can guarantee that connecting portion and PCB board's connection is reliable, the vacancy can not appear, and then can guarantee that the rosin joint does not appear when follow-up welding, guarantee the product yield. And positioning columns 215 are arranged on two sides of the bottom of the main body part 211, and the PCB is provided with positioning holes 14, so that when the USB TYPE-C connector 20 is connected with the PCB, the positioning columns 215 are inserted into the positioning holes 14 to position the specific position of the connector.

Preferably, the connecting portion 223 is provided with a first groove 2231 and a second groove 2232, the first groove 2231 is provided on the front surface of the connecting portion 223, the second groove 2232 is provided on the rear surface of the connecting portion 223, and the centers of the first groove 2231 and the second groove 2232 in the vertical direction are located at the same height, the height between the top and the bottom of the first groove 2231 is the same as the width between the front and the rear of the connecting portion 223, and the height between the top and the bottom of the second groove 2232 is 1/2 as the height between the top and the bottom of the first groove 2231. The bending effect of the connecting portion 223 can be better by the first groove 2231 and the second groove 2232, and the situation that the connecting portion 223 is broken due to pulling can be reduced.

The first metal shell 23 has a through cavity penetrating through the front and rear surfaces thereof, and the rubber core 21 is inserted into the through cavity from the rear end of the first metal shell and forms a front socket 231; in the embodiment of the present application, the outer surface of the main body portion abuts against the inner surface of the first metal shell, the upper surface and the lower surface of the main body portion 211 are provided with first fastening grooves (not shown), and the first metal shell 23 is provided with first elastic arms 232 fastened in the first fastening grooves; thereby, the rubber core can be firmly fixed in the first metal shell 23.

Moreover, the surface of the first metal shell 23 is further provided with a second metal shell 24, the second metal shell 24 includes a main body shell 241, side shell 242 bent downward from the left and right sides of the main body shell 241, and a rear shell 243 bent downward from the rear side of the main body shell 241, the rear shell 243 is bent forward to be provided with a folded lug 2431, the folded lug 2431 is provided with a first buckling window 2432, the side shell 242 is provided with a first buckling salient point 2421, and the first buckling salient point 2421 is buckled in the first buckling window 2432; the second metal shell 24 is arranged, so that the rubber core 21 and the first metal shell 23 can be more firmly mounted, and the assembly stability of the USB TYPE-C connector is further improved; the side shell 242 is provided with a pin 2422, and when the USB TYPE-C connector is mounted on a PCB, the USB TYPE-C connector can be inserted into a corresponding pin hole of the PCB 10 or clamped at two sides of the PCB 10 by the pin 2422, thereby fixing the USB TYPE-C connector.

The design of the utility model is characterized in that: through the trapezoidal salient points and the limiting convex strips on the lower surface of the main body part of the rubber core, after the connecting parts of the conductive terminals extend to the lower part of the main body part, the specific positions of the connecting parts to be bent are positioned by means of the trapezoidal salient points during bending, and the final bending angle of the connecting parts is limited by the limiting convex strips, so that the problem of transitional bending is avoided, the connecting parts and the PCB can be reliably connected, no vacant positions are generated, the condition that insufficient welding is generated during subsequent welding can be ensured, and the product yield is ensured;

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims

1. A USB TYPE-C connector for preventing cold joint comprises a PCB and a TYPE-C connector mounted on the PCB; the method is characterized in that:

2. The anti-cold-solder USB TYPE-C connector of claim 1, wherein: the lower surface of the main body part is provided with two limiting columns, and the two limiting columns are arranged on the left side and the right side of the main body part; limiting holes are formed in two sides of the front end of the PCB and penetrate through the upper surface and the lower surface of the PCB; the two limiting columns are inserted into the two limiting holes correspondingly.

3. The anti-cold-solder USB TYPE-C connector of claim 2, wherein: the height of the limiting column is greater than the height of the trapezoidal convex point and the height of the limiting convex strip.

4. The anti-cold-solder USB TYPE-C connector of claim 1, wherein: the connecting part is provided with a first groove and a second groove, the first groove is arranged on the front surface of the connecting part, and the second groove is arranged on the rear surface of the connecting part;

5. The anti-cold-solder USB TYPE-C connector of claim 1, wherein: the upper surface and the lower surface of the main body part are provided with first buckling grooves, and the first metal shell is provided with first elastic arms buckled in the first buckling grooves;

6. The anti-cold-solder USB TYPE-C connector of claim 1, wherein: the second metal shell is arranged on the surface of the first metal shell;

7. The anti-cold-solder USB TYPE-C connector of claim 6, wherein: the side shell is provided with a plug pin.