CN215266753U - USB electric connector - Google Patents

Abstract

The utility model provides a USB electric connector, include insulator, install the terminal module on insulator and install in insulator outlying metal casing, insulator is equipped with one and holds the mounting hole of terminal module, be equipped with a plurality of signal terminals in the terminal module and be located the ground terminal in a plurality of signal terminal outsides, ground terminal is equipped with the fixed arm that extends earlier on, the end of fixed arm is equipped with the bur of protruding stretching out the terminal module, the bur with the downthehole wall interference fit of mounting hole. Compared with the prior art, the utility model discloses a change ground terminal's structure, set up the fixed arm of stretching to the evagination on ground terminal to make the protruding surface of stretching out first body and second body of fixed arm, be used for taking place to interfere with insulator, thereby combine fixedly with insulator, because the fixed arm is the metal material, it can be more firm, more reliable fixed and can not damaged easily with the insulator buckle.

Description

USB electric connector

Technical Field

The utility model relates to an electric connection field especially relates to a USB electric connector.

Background

With the development trend of miniaturization and lightness of consumer electronic products such as notebook computers, tablet computers, mobile phones and the like, the requirements on the design and manufacturing process of parts of the consumer electronic products are higher and higher, and as the products are lighter and thinner day by day, the internal space of the consumer electronic products is very narrow, so that the requirement that the internal parts of the consumer electronic products are required to adopt a dense layout is met, the volume of each electronic part is smaller and thinner, and the requirements on the reliability of the manufacturing process and the connection of the consumer electronic products are higher and higher. Use Type C Type USB electric connector as an example, its inside conductive terminal is wrapped up in insulating injection molding usually, form an integral terminal module, assemble terminal module to an insulator again, equipment combination between them mainly realizes through insulating injection molding and insulator's mutual interference fit, however, because both are insulating material, it is very easy to take place the damage at the interference in-process, thereby lead to taking place the pine between insulating injection molding and the insulator to take place to take off, wearing and tearing, and then influence the connection reliability and the stability of whole electric connector product.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a USB electric connector to improve the cohesion between terminal module and the insulator among the prior art.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a USB electric connector, includes insulator, installs the terminal module on insulator and installs in insulator outlying metal casing, insulator is equipped with one and holds the mounting hole of terminal module, be equipped with a plurality of signal terminals in the terminal module and be located the ground terminal in a plurality of signal terminal outsides, ground terminal is equipped with the fixed arm that extends outward earlier on, the end of fixed arm is equipped with the protruding thorn that stretches out the terminal module, the thorn with the downthehole wall interference fit of mounting hole.

Furthermore, the terminal module comprises a first terminal set, a second terminal set and a metal isolation plate between the first terminal set and the second terminal set, the metal isolation plate is provided with a main plate, a pair of extension arms extending from two sides of the main plate to exceed the head edge of the main plate, and a pair of welding feet extending from the tail edge of the main plate, and the extending direction of the welding feet is opposite to the extending direction of the extension arms.

Furthermore, a plurality of through holes are formed in the main board, part of the through holes are located on the edge of the head of the main board, part of the through holes are located on the edge of the tail of the main board, a long and narrow gap is reserved between the extension arm and the main board, and a hook portion is arranged at the tail end of the extension arm.

Furthermore, the ground terminal is provided with a main arm, a contact arm extending from one end of the main arm and a mounting arm extending from the other end of the main arm in a bending manner, and one side of the main arm is provided with a lapping arm extending outwards and the fixing arm.

Furthermore, the fixed arm is provided with an inclined edge, the inclined edge is formed by extending outwards from the outer edge of the main body arm in an inclined mode and further extends to the protruding thorn, and a limiting groove is formed between the fixed arm and the main body arm.

Furthermore, the electric connector further comprises an injection molding body coated on the terminal module, the injection molding body comprises a first injection molding piece, a first shielding plate and a second injection molding piece which are embedded in the first injection molding piece, and a second shielding plate which is embedded in the second injection molding piece, protruding clamping pieces are further arranged at the tail edges of the first shielding plate and the second shielding plate, and the clamping pieces are in buckling fit with the terminal module.

Further, a pair of openings are formed in the first injection molding part and the second injection molding part, and extension pieces extending into the openings are arranged on the first shielding plate and the second shielding plate.

Furthermore, the signal terminal and the ground terminal are both provided with contact arms, and hollow-out areas are arranged at positions of the first shielding plate and the second shielding plate corresponding to the contact arms.

Compared with the prior art, the utility model discloses a change ground terminal's structure, set up the fixed arm of stretching to the evagination on ground terminal to make the protruding surface of stretching out first body and second body of fixed arm, be used for taking place to interfere with insulator, thereby combine fixedly with insulator, because the fixed arm is the metal material, it can be more firm, more reliable fixed and can not damaged easily with the insulator buckle.

Drawings

Fig. 1 is an exploded view of the USB electrical connector of the present invention.

Fig. 2 is a partial assembly view of the USB electrical connector according to the present invention.

Fig. 3 is a schematic diagram of a first terminal set of the USB electrical connector according to the present invention.

Fig. 4 is a schematic position diagram of the first terminal set and the shielding plate of the USB electrical connector of the present invention.

Fig. 5 is a schematic structural diagram of the ground terminal of the USB electrical connector according to the present invention.

Detailed Description

Referring to fig. 1 to 5, the present invention provides a USB electrical connector, including: the terminal module comprises an insulating body 10, a terminal module 20 clamped on the inner side of the insulating body 10, an injection molding body 30 installed on the terminal module 20, and a metal shell 40 arranged on the periphery of the terminal module 20 and the injection molding body 30.

The insulating body 10 is provided with a pair of side walls 11 and a pair of end walls 12, and the side walls 11 and the end walls 12 together enclose a mounting hole 13 for mounting the terminal module 20. The pair of side walls 11 are parallel to each other, the pair of end walls 12 are also parallel to each other, and a concave portion 14 which is snap-fitted to the metal shell 40 is provided on an outer wall surface of the end walls 12. The mounting hole 13 is provided with a hole inner wall (not numbered) that is interference-fitted with the terminal module 20.

The terminal module 20 includes a first terminal set 21, a second terminal set 22 assembled with each other, and a metal isolation plate 23 sandwiched between the first terminal set 21 and the second terminal set 22, the first terminal set 21 and the second terminal set 22 are assembled with each other to obtain the terminal module 20, and the metal isolation plate 23 is interposed between the two to perform a signal isolation function.

Specifically, the first terminal group 21 includes a first body 210 and a plurality of first conductive terminals 211 embedded in the first body 210, two side edges of the first body 210 are provided with a pair of notches 212 which are recessed inwards, the plurality of first conductive terminals 211 are arranged along a straight line, and the plurality of first conductive terminals 211 are provided with a plurality of contact arms 213 which protrude out of the first body 210, in addition, the plurality of first conductive terminals 211 include a plurality of signal terminals S and a pair of ground terminals G which are arranged at two sides of the plurality of signal terminals S, the contact arms 213 of the signal terminals S and the contact arms 213 of the ground terminals G have the same structure, wherein the ground terminals G are provided with a main body arm 214, the contact arms 213 which extend out from one end of the main body arm 214, and a mounting arm 215 which is bent and extended from the other end of the main body arm 214, and the main body arm 214 and the contact arms 213 are in a long strip shape and extend along the same direction, one side of the main body arm 214 is provided with an overlapping arm 216 and a fixing arm 217 which extend outwards, the overlapping arm 216 bends and extends towards the metal isolation plate 23 to overlap the surface of the metal isolation plate 23, so as to realize conduction with the metal isolation plate 23 and achieve the function of grounding, and the overlapping arm 216 and the main body arm 214 are integrally connected through a strengthening arm 218 to enhance the strength of the overlapping arm 216. It should be noted that the fixed arm 217 and the main body arm 214 are located in the same plane, and the fixed arm 217 is located in the gap 212, the fixed arm 217 is provided with a protruding thorn 2171 and a bevel 2172, the beveled edges 2172 extend obliquely outward from the outer edges of the body arms 214, and further extend to the location of the spurs 2171, in addition, a limiting recess 2173 is formed between the fixing arm 217 and the main body arm 214, the limiting recess 2173 is completely embedded in the first body 210 or the second body 220, which can enhance a coupling force with the first body 210 or the second body 220, the fixing arm 217 is located at a junction of the body arm 214 and the mounting arm 215, and the protrusion 2171 of the fixing arm 217 protrudes outward from the surface of the first body 210 or the second body 220 for interference fit with the inner wall of the hole of the mounting hole 13 of the insulation body 10, so that the terminal module 20 can be firmly combined with the insulative housing 10 by means of the protruding thorns 2171 protruding from both sides. The second terminal set 22 has substantially the same structure as the first terminal set 21, and is also provided with a pair of ground terminals G, which have the same structure as the ground terminals G in the first terminal set 21, and are not repeated herein.

The metal isolation plate 23 is in a flat plate shape, and is provided with a main plate 231, a pair of extension arms 232 extending from two sides of the main plate 231 to exceed the head edge of the main plate 231, and a pair of welding pins 233 extending from the tail edge of the main plate 231, wherein the extending direction of the welding pins 233 is opposite to the extending direction of the extension arms 232, the main plate 231 is provided with a plurality of through holes 234, the through holes 234 penetrate through the front and back surfaces of the main plate 231, part of the through holes 234 are located at the head edge of the main plate 231, and part of the through holes 234 are located at the tail edge of the main plate 231. A narrow gap 235 is left between the extension arm 232 and the main plate 231, and a hook 236 is disposed at the end of the extension arm 232.

The injection molding body 30 comprises a first injection molding part 31, a first shielding plate 32 and a second injection molding part 33 which are embedded in the first injection molding part 31, and a second shielding plate 34 which is embedded in the second injection molding part 33, wherein the first shielding plate 32 and the first injection molding part 31 are combined together through injection molding and cover one side of the terminal module 20, the second shielding plate 34 and the second injection molding part 33 are combined together through injection molding and cover the other side of the terminal module 20, so that the two sides of the terminal module 20 are covered by the first shielding plate 32 and the second shielding plate 34, better signal transmission quality is ensured, and external signal interference is reduced. The first injection molding part 31 and the second injection molding part 33 are respectively provided with a pair of open holes 35, the first shielding plate 32 and the second shielding plate 34 are respectively provided with an extending sheet 36 extending into the open holes 35, and the tail edges of the first shielding plate 32 and the second shielding plate 34 are further provided with protruding clamping sheets 37 for clamping the first body 210 and the second body 220 in a clamping and matching manner. In addition, the first shielding plate 32 and the second shielding plate 34 are provided with a hollow area 38 at a position corresponding to the contact arm 213.

To sum up, the utility model discloses a change ground terminal G's structure, set up the protruding fixed arm 217 that stretches out on ground terminal G to make the protruding surface that stretches out first body 210 and second body 220 of fixed arm 217, be used for taking place to interfere with insulator 10, thereby combine fixedly with insulator 10, because fixed arm 217 is the metal material, it can be more firm, more reliable and insulator 10 buckle is fixed and can not be damaged easily.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art can make many variations and modifications of the technical solution of the present invention without departing from the scope of the technical solution of the present invention.

Claims (8)

1. The utility model provides a USB electric connector, includes insulator, installs the terminal module on insulator and installs in insulator outlying metal casing, insulator is equipped with one and holds the mounting hole of terminal module, its characterized in that: the terminal module is internally provided with a plurality of signal terminals and a grounding terminal positioned on the outer side of the signal terminals, the grounding terminal is provided with a fixed arm extending outwards, the tail end of the fixed arm is provided with a protruding thorn protruding out of the terminal module, and the protruding thorn is in interference fit with the inner wall of the mounting hole.

2. The USB electrical connector of claim 1, wherein: the terminal module comprises a first terminal set, a second terminal set and a metal isolation plate between the first terminal set and the second terminal set, wherein the metal isolation plate is provided with a main plate, a pair of extension arms extending from two sides of the main plate to exceed the head edge of the main plate, and a pair of welding pins extending from the tail edge of the main plate, and the extending direction of the welding pins is opposite to the extending direction of the extension arms.

3. The USB electrical connector of claim 2, wherein: the main board is provided with a plurality of through holes, part of the through holes are located at the edge of the head of the main board, part of the through holes are located at the edge of the tail of the main board, a long and narrow gap is reserved between the extension arm and the main board, and the tail end of the extension arm is provided with a hook part.

4. The USB electrical connector of claim 1, wherein: the grounding terminal is provided with a main body arm, a contact arm extending from one end of the main body arm and a mounting arm extending from the other end of the main body arm in a bending mode, and one side of the main body arm is provided with a lapping arm extending outwards and the fixing arm.

5. The USB electrical connector of claim 4, wherein: the fixing arm is provided with an inclined edge, the inclined edge extends outwards from the outer edge of the main body arm and further extends to the protruding thorn, and a limiting groove is formed between the fixing arm and the main body arm.

6. The USB electrical connector of any of claims 1-5, wherein: the electric connector further comprises an injection molding body coated on the terminal module, the injection molding body comprises a first injection molding piece, a first shielding plate and a second injection molding piece which are embedded in the first injection molding piece, and a second shielding plate which is embedded in the second injection molding piece, protruding clamping pieces are further arranged on the tail edges of the first shielding plate and the second shielding plate, and the clamping pieces are matched with the terminal module in a buckling mode.

7. The USB electrical connector of claim 6, wherein: a pair of openings are formed in the first injection molding piece and the second injection molding piece, and extension pieces extending into the openings are arranged on the first shielding plate and the second shielding plate.

8. The USB electrical connector of claim 7, wherein: the signal terminal and the grounding terminal are both provided with contact arms, and hollow-out areas are arranged at the positions of the first shielding plate and the second shielding plate corresponding to the contact arms.

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