TWM478258U - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having a ground terminal.

The USB 3.0 standard provides ten times the transfer rate of USB 2.0 and is widely used in PC peripherals and consumer electronics. Class A sockets and plugs are defined in the USB 3.0 standard, and USB 3.0A plugs are compatible with the previous generation of USB 2.0 sockets. The USB3.0A type socket generally includes an insulating body, a plurality of conductive terminals housed in the insulating body, and a metal case covering the insulating body. There are a total of nine conductive terminals, including two pairs of differential signal terminals, two ground terminals and a power terminal. The shielding case is used to cover external interference signals and improve the signal transmission quality of the socket.

The main purpose of this creation is to provide an electrical connector with simplified grounding circuitry and reduced cost.

The present invention achieves the above object by the following technical solution: an electrical connector comprising: an insulative body having a base and a tongue extending forward from the base; and a plurality of conductive ends The main body is received in the insulating body, the conductive terminal includes a contact portion arranged on the tongue plate, and the metal case is covered with the insulating body, and the metal case is provided with a plug hole, the tongue plate Located in the insertion hole, the contact portion is exposed in the insertion hole; wherein the conductive terminal comprises a first ground terminal and a pair of first differential signal terminals, the first ground terminal is integrally formed on the metal casing .

The first grounding terminal of the creative electrical connector is integrally formed on the metal casing, and the first grounding terminal can realize the grounding circuit by the metal casing and the cable or the mother circuit board, and the metal casing has the function of the signal shielding The function of the grounding terminal simplifies the grounding line of the electrical connector, facilitates the connection process of the electrical connector with the cable or the mother board, and simplifies the mold structure for manufacturing other conductive terminals, thereby reducing the manufacturing cost.

100‧‧‧Electrical connector

10‧‧‧Insulated body

11‧‧‧ base

111‧‧‧Depression

112‧‧‧Snap block

113‧‧‧ sloped surface

114‧‧‧Protruding

115‧‧‧ positioning slot

116‧‧‧First fixed slot

117‧‧‧Second fixing slot

12‧‧ ‧ tongue

121‧‧‧ upper surface

122‧‧‧ lower surface

123‧‧‧First storage trough

124‧‧‧ Groove

125‧‧‧ ribs

126‧‧‧Second holding trough

20‧‧‧ Positioning block

21‧‧‧ Subject

211‧‧‧Fixed holes

212‧‧‧ buckle arm

213‧‧‧Snap holes

214‧‧‧ gap

22‧‧‧Support

220‧‧‧ recess

30‧‧‧Electrical terminals

31‧‧‧First terminal group

311‧‧‧Power terminal

312‧‧‧First differential signal terminal

313‧‧‧First grounding terminal

314‧‧‧Flexible Department

315‧‧‧First contact

317‧‧‧First Fixed Department

318‧‧‧First connection

319‧‧‧ Positioning Department

32‧‧‧Second terminal group

322‧‧‧Second differential signal terminal

323‧‧‧Second ground terminal

325‧‧‧Second contact

326‧‧‧Intermediate

327‧‧‧Second fixed department

328‧‧‧Second connection

40‧‧‧Metal housing

41‧‧‧ top wall

413‧‧‧through hole

42‧‧‧ bottom wall

43‧‧‧ side wall

431‧‧‧Connecting piece

45‧‧‧ Sockets

46‧‧‧Resist the shrapnel

Figure 1 is a perspective assembled view of the electrical connector of the present invention.

2 is a perspective view of the creation of an electrical connector with the metal housing partially cut away.

Fig. 3 is an exploded perspective view of Fig. 2;

4 is an exploded perspective view of the electrical connector of the present invention.

As shown in FIG. 1 to FIG. 4 , the present invention is a USB 3.0 socket connector, which includes an insulative housing 10 , a positioning block 20 that is assembled forward on the insulative housing 10 , and a number that is received in the insulative housing 10 . The conductive terminal 30 and the metal casing 40 covering the insulative housing 10.

The insulative housing 10 includes a base portion 11 and a tongue plate 12 projecting forwardly from the base portion 11. The two sides of the base portion 11 are provided with a recessed portion 111 and a latching block 112 located in the recessed portion 111. The latching block 112 has There is an inclined surface 113 facing the rear, and a pair of projecting portions 114 extending rearward are provided at the left and right ends of the base portion 11. The tongue plate 12 has an opposite upper surface 121 and a lower surface 122. The upper surface 121 is recessed with a plurality of first receiving slots 123 and a plurality of recesses 124 in front of the first receiving slots 123. The first receiving slots 123 and the recesses 124 The grooves 124 are spaced apart in the front-rear direction, and the grooves 124 are arranged in a row in the left-right direction, and a rib 125 is disposed between each adjacent two grooves 124 to separate them. A positioning groove 115 is defined in the front end surface of the base portion 11. The positioning groove 115 extends through the base portion 11 from a first receiving groove 123 located at the outermost side. The lower surface 122 is recessed with a plurality of second receiving slots 126, and the second receiving slots 126 and the recesses 124 are penetrated one by one. The base portion 11 is further provided with a plurality of first fixing grooves 116 and a second fixing groove 117. The first fixing groove 116 is located above the second fixing groove 117, and the first fixing groove 116 is aligned with the first receiving groove 123. The second fixing groove 117 and the second receiving groove 126 are penetrated one by one.

The positioning block 20 is assembled forwardly on the base portion 11. The positioning block 20 includes a main body 21 and a supporting portion 22 protruding rearward from the main body 21. The main body 21 is provided with upper and lower alignments with the first and second fixing grooves 116 and 117. Two rows of fixing holes 211 and a pair of latching arms 212 inserted into the recessed portion 111 of the insulative housing 10, the inclined surface 113 of the latching block 112 is used for guiding the latching arm 212 to move forward, and the latching arm 212 A snap hole 213 for fixing the snap block 112 is provided to restrict the positioning block 20 from moving backward. A notch 214 for receiving the protruding portion 114 of the insulative housing 10 is disposed on both sides of the bottom portion of the main body 21 for restricting the positioning block 20 from moving left and right and up and down. A concave portion 220 that communicates with the fixing hole 211 in a front-rear direction is recessed from the top surface and the bottom surface of the support portion 22, respectively.

The conductive terminal 30 includes a first terminal group 31 and a second terminal group 32. The first terminal group 31 conforms to the USB 2.0 transmission protocol, and the combination of the first and second terminal groups 31, 32 conforms to the USB 3.0 transmission protocol. The first terminal group 31 is four, and includes a power terminal 311, a first ground terminal 313, and a pair of first differences between the power terminal 311 and the first ground terminal 313. The signal terminal 312, the power terminal 311 and the first differential signal terminal 312 are separately provided one by one, and the first ground terminal 313 is integrally formed on the metal casing 40. Each of the terminals of the first terminal block 31 includes an elastic portion 314 located in the first receiving groove 123 of the insulative housing 10 and an arc portion extending from the first receiving groove 123 to the upper surface 121 of the tongue plate 12 at the front end of the elastic portion 314. The first contact portion 315 , the power terminal 311 and the first differential signal terminal 312 further include a first connecting portion 318 at the rear end and a first fixing portion 317 connecting the elastic portion 314 and the first connecting portion 318 . The second terminal group 32 is five, and includes two pairs of second differential signal terminals 322 and a second ground terminal 323 between the two pairs of second differential signal terminals 322. The first fixing portion 317 is fixed in the fixing hole 211 of the first fixing groove 116 of the insulating body 10 and the positioning block 20, and the first connecting portion 318 is received in the concave portion 220 on the top surface of the positioning block 20 and exposed to the outside to be connected with the cable. (not shown) welded together.

Each terminal of the second terminal group 22 includes a flat second contact portion 325 at the front end, an intermediate portion 326 extending rearward from the second contact portion 325, and a second fixing portion 327 continuing from the intermediate portion 326 to extend rearward. The second fixing portion 327 has a second connecting portion 328 extending rearward. The second contact portion 325 is received in the recess 124 of the insulative housing 10 , and the intermediate portion 326 is received in the second receiving slot 126 of the insulative housing 10 . The second fixing portion 327 is fixed to the second fixing slot 117 of the insulative housing 10 and the positioning block 20 . In the fixing hole 211, the second connecting portion 328 is received in the recess 220 of the bottom surface of the positioning block 20 and exposed to the outside to be welded with the cable.

In addition, the conductive terminal 30 is made of carbon steel except for the first ground terminal 313 and is plated with nickel on the surface. The carbon steel refers to an iron-carbon alloy containing more than 2.11% of carbon, and the carbon steel includes high-quality carbon. Steel (low phosphorus and sulfur), high-quality steel (lower phosphorus and sulfur) and premium grade steel (very low in phosphorus and sulfur). High-quality carbon steel can replace phosphor bronze and phosphor bronze. The cost is better than phosphor bronze. Phosphor bronze decreased by 15%.

The metal casing 40 is made of carbon steel and includes a top wall 41 and a top wall 41. The bottom wall 42 and the two side walls 43 connecting the top wall 41 and the bottom wall 42 are formed between the top wall 41, the bottom wall 42 and the two side walls 43 for receiving the mating connector (not shown). The insulative housing 10 is disposed in the insertion hole 45, and the first and second contact portions 315, 325 are exposed in the insertion hole 45 for contacting the mating connector, the top wall 41, the bottom wall 42 and the two The side walls 43 are respectively provided with a pressing elastic piece 46 protruding into the insertion hole 45. The two side walls 43 have a connecting piece 431 extending rearward for connecting with a grounding line in the cable to realize a grounding circuit, so that the first grounding terminal 313 A ground loop can be formed by the metal housing 40 and the cable. The first ground terminal 313 is stamped downward from the top wall 41, and the top wall 41 has a through hole 413 left by the formation of the first ground terminal 313. The first grounding terminal 313 includes a positioning portion 319 extending perpendicularly from the rear edge of the through hole 413. The positioning portion 319 is received in the positioning groove 115 of the insulative housing 10 and is restricted from moving left and right.

The first grounding terminal 313 of the present electrical connector 100 is integrally formed on the metal casing 40. The first grounding terminal 313 can realize a grounding loop by the metal casing 40 and the cable, and the metal casing 40 has the function of a signal mask. In addition, the function of the first grounding terminal 313 is simplified, the grounding circuit of the electrical connector 100 is simplified, the connection process of the electrical connector 100 and the cable is facilitated, and the mold structure for manufacturing other conductive terminals is simplified, and the manufacturing cost is reduced.

In other embodiments, the electrical connector 100 is mounted on a motherboard (not shown), the conductive terminals 30 and the metal housing 40 are soldered to the motherboard, respectively, and the first ground terminal 313 is integrally formed in the metal housing 40. The first ground terminal 313 is connected to the grounding line on the mother board by the metal casing 40, which also simplifies the grounding line of the electrical connector 100, facilitates the installation process of the electrical connector 100 and the mother board, and also simplifies The mold structure for manufacturing other conductive terminals reduces the manufacturing cost and achieves the purpose of the present creation.

The disclosure of the preferred embodiment of the present invention is not intended to limit the scope of the present invention, any Those skilled in the art will be able to make some changes and refinements without departing from the spirit and scope of this creation, as the scope of protection of this creation is subject to the definition of the scope of the patent application.

100‧‧‧Electrical connector

11‧‧‧ base

12‧‧ ‧ tongue

20‧‧‧ Positioning block

312‧‧‧First differential signal terminal

313‧‧‧First grounding terminal

32‧‧‧Second terminal group

40‧‧‧Metal housing

45‧‧‧ Sockets

319‧‧‧ Positioning Department

Claims (10)

An electrical connector includes: an insulating body having a base and a tongue protruding forward from the base; a plurality of conductive terminals received in the insulating body, the conductive terminals including contacts arranged on the tongue And a metal casing covering the insulative housing, the metal casing is provided with a plug hole, the tongue is located in the plug hole, and the contact portion is exposed in the plug hole; wherein the conductive The terminal includes a first ground terminal and a pair of first differential signal terminals, and the first ground terminal is integrally formed on the metal casing. The electrical connector of claim 1, wherein the conductive terminal further comprises a power supply terminal that forms a ground loop with the first ground terminal. The electrical connector of claim 1, wherein the metal housing comprises a top wall, a bottom wall opposite the top wall, and two side walls connecting the top wall and the bottom wall, the first ground terminal being integral with the top wall Connected. The electrical connector of claim 3, wherein the top wall has a through hole formed by forming a first ground terminal, the first ground terminal extending downward from a rear edge of the through hole. The electrical connector of claim 3, wherein the front surface of the base is provided with a positioning slot, and the first grounding terminal includes a positioning portion extending downward from the top wall, and the positioning portion is received in the positioning slot. Limit left and right movement. The electrical connector of claim 5, wherein the first ground terminal comprises an elastic portion connecting the contact portion and the positioning portion, the tongue plate has opposite upper and lower surfaces, and the upper surface is concavely provided with the receiving elastic portion The first receiving slot. The electrical connector of claim 2, wherein the conductive terminal comprises a first terminal set and a second terminal set, the first terminal set conforms to a USB 2.0 transmission protocol, and the first terminal set includes the first ground terminal The power terminal and the first differential signal terminal between the first ground terminal and the power terminal, the combination of the first and second terminal groups conforms to the USB 3.0 transmission protocol, and the second terminal group includes two pairs of second a differential signal terminal and a second ground terminal between the pair of second differential signal terminals, the metal housing having a connecting piece extending rearward to connect with the cable or the mother board. The electrical connector of claim 7, wherein the lower surface of the tongue plate is recessed with a second receiving groove of the second terminal set, and the surface of the tongue plate is provided with a groove extending through the insertion hole. The second terminal group has a flat contact portion located in the groove, and the contact portion of the first terminal group is curved. The conductive terminal and the metal case are made of carbon steel and are plated with nickel on the surface. The electrical connector of claim 1, wherein the electrical connector comprises a positioning block that is assembled forwardly on the insulative housing, the positioning block has a fixing hole for fixing the conductive terminal and a locking arm extending forward, Both sides of the base are provided with a recessed portion and a snap block located in the recessed portion, and the snap arm has a snap hole that is engaged with the snap block. The electrical connector of claim 9, wherein the positioning block comprises a main body and a supporting portion protruding rearward from the main body, and the top surface and the bottom surface of the supporting portion are respectively provided with concave portions communicating with the fixing holes, the conductive terminals There is a connection portion housed in the recess, and the connection portion is exposed to the outside.