TWI555285B - Electrical connector and electrical connector assembly with the same - Google Patents

Description

Electrical connector and electrical connector combination

The present invention relates to an electrical connector, and more particularly to an electrical connector and an electrical connector assembly mounted on a circuit board.

With the development of the electronics industry, the transmission rate of the existing I/O electrical connector assembly installed on the circuit board is gradually increasing to meet the needs of consumers. However, the increase in transmission rate requires a higher shielding effect on the high-speed transmission signals of existing electrical connectors.

The conventional electrical connector assembly includes a plug and a receptacle that cooperate with each other to form a grounding mechanism by contacting the EMC iron shell inside the socket with the metal shell other than the plug, thereby improving the transmission of the ground signal, thereby improving Shielding effect. However, the structure of the EMC iron shell inside the socket is complicated, and the contact between the EMC iron shell inside the socket and the metal shell outside the plug requires a preset contact space inside the electrical connector, and the assembly is complicated.

In view of this, it is indeed necessary to further improve the existing electrical connector and electrical connector group to solve the above problems.

The object of the present invention is to provide a new type of electrical connector and electrical connector assembly. When the docking electrical connector is docked with the electrical connector, the outer connector of the electrical connector is connected to the electrical connector. The housing of the connector is in contact with the conduction to improve the transmission of the ground signal.

In order to achieve the above object, the present invention relates to an electrical connector including an insulative housing, a plurality of terminals fixed to the insulative housing, and an outer casing fixed to the outer side of the insulative housing; the insulative housing includes a base portion and a tongue portion extending forward from the base portion The terminal has a contact portion extending to the tongue portion; the outer casing defines a receiving space for receiving the tongue portion and the terminal contact portion; the outer casing includes an inner metal casing and the inner metal casing a metal housing outside the outer side, the inner metal housing is provided with an elastic piece protruding into the receiving space, and the outer metal housing is provided with a retaining structure that cooperates with the elastic piece, and the retaining structure provides a spring piece along the elastic piece The space in which the electrical connector moves in the thickness direction.

According to a further improvement of the present invention, the receiving structure is a receiving groove for receiving the elastic piece, and the receiving groove is formed to be recessed from an inner surface of the outer metal housing.

As a further improvement of the present invention, the portion of the outer metal casing corresponding to the elastic piece protrudes outward and forms a seating structure on the inner side, and the protrusion and the outer metal casing are stepped.

As a further improvement of the present invention, the abutting structure is a through hole penetrating the outer metal casing in the inner and outer directions.

According to a further improvement of the present invention, the elastic piece includes a connecting portion connected to the inner metal casing, and an elastic portion extending rearward from the connecting portion and extending into the receiving space.

As a further improvement of the present invention, the elastic piece is disposed outside the tongue portion.

To achieve the above object, the present invention also relates to an electrical connector assembly including an electrical connector and a mating electrical connector mated with the electrical connector; the electrical connector including the first insulation The first end of the insulating body is fixed to the first terminal of the insulative housing and the first outer casing fixed to the outside of the first insulative housing, the first insulative housing includes a first base portion and a tongue portion extending forward from the first base portion, the foregoing One terminal has a first contact portion extending to the tongue portion; the first housing defines a first receiving space therein for receiving the tongue portion and the first contact portion; the first housing includes an inner metal housing and a metal casing disposed outside the outer metal casing, wherein the inner metal casing is provided with a spring piece protruding into the first receiving space; the docking electrical connector includes a second insulating body, and the plurality is fixed to the second a second terminal of the insulative housing and a second outer casing fixed to the outer side of the second insulative housing; the second insulative housing includes a second base portion and an abutting portion extending forward from the second base portion and engaging with the tongue portion, the docking The second receiving portion has a second receiving space for receiving the tongue portion; the second terminal has a second contact portion extending forwardly to the second receiving space; the mating electrical connector is inserted Said first housing space and the mating electrical connector, the elastic piece is inserted into the first receiving space in the mating electrical connector with the mating abutment electrical connector.

As a further improvement of the present invention, the outer metal casing is provided with a seating structure that cooperates with the elastic piece, and the elastic piece abuts against the butt electrical connector after the butt electrical connector is inserted into the first receiving space and is elastically pressed beyond The first receiving space is housed in the retaining structure.

According to a further improvement of the present invention, the retaining structure is a receiving groove for receiving the elastic piece, and the receiving groove is formed to be recessed outward from the inner side of the outer metal casing.

As a further improvement of the present invention, the abutting structure is a through hole penetrating the outer metal casing in the inner and outer directions.

Compared with the prior art, the electrical connector of the present invention is provided with the elastic piece protruding into the receiving space on the inner metal casing, and the elastic piece is inserted into the docking electrical connector. After the space is abutted with the docking electrical connector, on the one hand, the outer casing of the electrical connector is in contact with the outer casing of the docking electrical connector, thereby improving the ground signal transmission, and grounding the other signal transmission, so that the electrical connector of the present invention is shielded. The effect is better, the signal transmission effect of the electrical connector is effectively ensured, and the holding force of the electrical connector and the docking electrical connector is strengthened by the elastic force of the elastic piece.

100‧‧‧Electrical connector

11‧‧‧ first shell

111‧‧‧First containment space

112‧‧‧Metal metal shell

1121‧‧‧First fixed piece

1122‧‧‧Shrap

11221‧‧‧Connecting Department

11222‧‧‧Flexible Department

1123‧‧‧Fixed holes

1124‧‧ ‧ gap

113‧‧‧Outer metal casing

1131‧‧‧Outer top wall

1132‧‧‧Outer bottom wall

1133‧‧‧Outer side wall

1134‧‧‧Back wall

1135‧‧‧Second fix

1136‧‧‧ third fixed hole

1137‧‧‧Recession structure

1137a‧‧‧ Containment trough

1137b‧‧‧ raised

1137c‧‧‧through hole

1138‧‧‧Abutment block

1139‧‧‧ pins

1130‧‧‧ Side bends

12‧‧‧First Insulation Body

121‧‧‧ first base

1211‧‧‧First base

1212‧‧‧ First front base

122‧‧ ‧ tongue plate

1221‧‧‧Back tongue part

1222‧‧‧ front tongue section

123‧‧‧First fixed slot

124‧‧‧Second fixing slot

125‧‧‧Bumps

13‧‧‧First terminal

13a‧‧‧First upper row of terminals

13b‧‧‧First lower row of terminals

131‧‧‧First contact

131a‧‧‧First upper row of contacts

131b‧‧‧First lower row contact

132‧‧‧First Installation Department

132a‧‧‧First upper row installation

132b‧‧‧First lower row installation

133a‧‧‧The first upper row of fixed parts

133b‧‧‧First lower row fixed part

134a‧‧‧The first upper row of inserts

134b‧‧‧First lower row insert

135‧‧‧First signal terminal

136‧‧‧First grounding terminal

14‧‧‧First grounding piece

141‧‧‧ Main body

142‧‧‧ Grounding Pins

200‧‧‧Docking electrical connector

21‧‧‧ second casing

22‧‧‧Second insulation body

221‧‧‧ Second Base

222‧‧‧Docking Department

223‧‧‧Second containment space

23‧‧‧second terminal

23a‧‧‧Second upper row of terminals

23b‧‧‧Second lower row of terminals

231‧‧‧Second contact

232‧‧‧Second Installation Department

234‧‧‧second signal terminal

235‧‧‧Second ground terminal

The first figure is a perspective view of the electrical connector of the present invention.

The second figure is an exploded view of the first figure.

The third figure is a perspective view of the outer metal casing of the present invention.

The fourth figure is a top view of the inner metal casing.

The fifth figure is a top view in which the first outer casing of the first figure is removed.

The sixth drawing is a cross-sectional view of the first figure taken along the A-A direction.

Figure 7 is a perspective view of an electrical connector of another embodiment of the present invention.

Figure 8 is a cross-sectional view taken along line B-B of another embodiment of the present invention.

Figure 9 is a perspective view of an electrical connector according to still another embodiment of the present invention.

Figure 11 is a cross-sectional view taken along line C-C of still another embodiment of the present invention.

The eleventh diagram is a perspective view of the electrical connector assembly of the present invention.

Figure 12 is a partially exploded view of the docking electrical connector of the present invention.

Referring to the first, eleventh, and twelfth drawings, the present electrical connector assembly includes an electrical connector 100 and a mating electrical connector 200 that mates with the electrical connector 100 described above.

Referring to FIGS. 2 to 10, the electrical connector 100 can be mounted on an external circuit board (not shown) and can be mated with the mating electrical connector 200. The electrical connector 100 includes a first insulative housing 12, a plurality of first terminals 13 fixed in the first insulative housing 12, a first grounding strip 14 fixed in the first insulative housing 12, and fixed to the first insulating layer. The first outer casing 11 on the outer side of the body 12.

Referring to the second and fifth to eighth embodiments, the first insulative housing 12 includes a first base portion 121 and extends forward from the first base portion 121 and has a smaller thickness in the thickness direction than the first base portion 121. The tongue portion 122. The first base portion 121 includes a first rear base portion 1211 and a first front base portion 1212 having a smaller dimension in the thickness direction than the first rear base portion 1211. The first front base portion 1212 has a larger dimension in the thickness direction than the aforementioned tongue. The size of the plate portion 122 in the thickness direction. The first rear base portion 1211 and the first front base portion 1212 are stepped. The tongue portion 122 includes a tongue portion 1221 and a tongue portion 1222 extending forward from the rear tongue portion 1221 after being coupled to the first front base portion 1212.

Referring to the first to the tenth, the first housing 11 defines a first receiving space 111 for receiving the contact portion between the tongue portion 122 and the first terminal 13. The mating electrical connector 200 is inserted into the foregoing A receiving space 111 is mated with the electrical connector 100. The first outer casing 11 includes an inner metal casing 112 and a metal casing 113 sleeved outside the inner metal casing 112. The outer metal casing 113 and the inner metal casing 112 are complementary in structure, and the outer metal shell can be improved. The shielding effect and strength of the body 113.

The distance from the top of the tongue portion 122 to the top wall of the inner metal casing 112 is the same as the distance from the bottom of the tongue portion 122 to the bottom wall of the inner metal casing 112, so that the butt electrical connector 200 can be inserted in both the forward and reverse directions. The first receiving space 111 is docked with the electrical connector 100, and Signal transmission is possible.

Referring to the first, second, and fourth to tenth drawings, the top wall of the inner metal casing 112 is provided with a first fixing piece 1121 facing and fixed to the first insulating body 12, the first The top of the insulative housing 12 has a first fixing slot 123 for receiving the first fixing piece 1121. The first fixing piece 1121 can be disposed in the first fixing slot 123 to insulate the inner metal housing 112 from the first one. The body 12 is fixed.

The inner metal casing 112 is further provided with a spring piece 1122 protruding into the first receiving space 111, and the elastic piece 1122 is movable along the thickness direction of the electrical connector 100. The elastic piece 1122 abuts the mating electrical connector 200 after the mating electrical connector 200 is inserted into the first receiving space 111. On the one hand, the first outer casing 11 of the electrical connector 100 and the second outer casing 21 of the electrical connector 200 are connected. The contact is turned on, the ground signal transmission is improved, and the other signal transmission is grounded, so that the electrical connector 100 of the present invention has a better shielding effect, and the signal transmission effect of the electrical connector 100 is effectively ensured; on the other hand, the elastic force of the elastic piece 1122 is used to strengthen the foregoing. The holding force of the electrical connector 100 and the docking electrical connector 200 prevents the two from being disengaged.

In addition, the elastic piece 1122 is abutted against the mating electrical connector 200 and is elastically pressed to move outward along the thickness direction of the electrical connector 100 beyond the first receiving space 111, that is, the elastic piece 1122 is elastically squeezed by the docking electrical connector 200. Pressing and ejecting along the thickness direction of the electrical connector 100 toward the outside of the first receiving space 111 to give way to the mating electrical connector 200, so that the mating electrical connector 200 is inserted into the first receiving space 111 and electrically connected thereto. The device 100 is docked.

The inner metal casing 112 is provided with at least one of the aforementioned elastic pieces 1122 for being in contact with the second outer casing 21 of the mating electrical connector 200. Preferably, the inner metal housing 112 is provided with at least two aforementioned elastic pieces 1122, and at least two of the aforementioned elastic pieces 1122 are symmetrically disposed on the aforementioned tongue. The outer side of the plate portion 122 is evenly biased during the insertion of the mating electrical connector 200 into the first receiving space 111, and no deflection occurs to avoid unnecessary wear of the mating structure in the combination of the electrical connectors 100. Shorten the service life. In this embodiment, two elastic pieces 1122 are symmetrically disposed on the top wall and the bottom wall of the inner metal casing 112, respectively. Of course, the number and position of the aforementioned elastic pieces 1122 can be adjusted and changed as needed.

The elastic piece 1122 includes a connecting portion 11221 and an elastic portion 11222 which are connected to the inner metal casing 112 and are disposed in parallel with the inner metal casing 112. The elastic portion 11222 extends rearward from the connecting portion 11221 and into the first receiving space 111. Extending and protruding into the first receiving space 111.

The distance between the tongue portion 122 and the inner metal casing 112 is greater than the distance from the first base portion 121 to the inner metal casing 112. The elastic piece 1122 is disposed on the outer side of the tongue plate portion 122, that is, the elastic piece 1122 is outwardly oriented. The projection of the inner first insulating body 12 is located at the tongue portion 122. The projection of the connecting portion 11221 and the inner metal casing 112 is located at the front end of the front tongue portion 1222 from the outside to the inside of the first insulating body 12; the elastic portion 11222 is disposed on the outer side of the rear tongue portion 1221.

The elastic portion 11222 has an inner surface facing the receiving space and an outer surface facing the inner surface. The outer surface extends rearward and inwardly from the connecting portion 11221 and continues to extend rearwardly parallel to the inner metal housing 112. The inner surface extends rearward and inwardly from the connecting portion 11221, and continues to extend rearwardly parallel to the inner metal housing 112, and finally extends rearward and outwardly to the outer surface.

The mating electrical connector 200 is inserted into the first receiving space 111 from the front to the rear, and the insertion direction and the elastic piece 1122 both extend rearward, so that the elastic piece 1122 is docked in the foregoing. The electrical connector 200 is gradually ejected outward during the insertion process to avoid interference with the aforementioned elastic piece 1122 and the aforementioned docking electrical connector 200. At the same time, the portion of the inner surface parallel to the inner metal casing 112 abuts the mating electrical connector 200.

Referring to the first to third and sixth to tenth drawings, the outer metal casing 113 includes an outer top wall 1131, an outer bottom wall 1132, and the outer top wall 1131 and the outer bottom wall 1132. The two outer side walls 1133 and the outer bottom wall 1131 are bent from the outer top wall 1132 to form a rear wall 1134. The outer metal housing 113 is provided with a second fixing piece 1135 and a third fixing hole 1136 for fixing to the first insulating body 12, and a retaining structure 1137 matched with the elastic piece 1122 toward the inner metal housing 112. The block 1138 is abutted. After the outer metal casing 113 and the inner metal casing 112 are assembled, the abutting block 1138 abuts against the inner metal casing 112 and the outer metal casing 113 is in contact with the inner metal casing 112.

The outer top wall 1131 protrudes from the first insulative housing 12 with a second fixing piece 1135. The inner metal housing 112 has a fixing hole 1123 through which the second fixing piece 1135 passes, and the top of the first insulating body 12 The second fixing groove 124 is configured to receive the second fixing piece 1135. The second fixing piece 1135 passes through the fixing hole 1123 and is placed in the second fixing groove 124 to connect the outer metal housing 113 with the first one. The insulating body 12 is fixed.

The bottom end of the rear wall 1134 extends downward to form a pin 1139 fixed to the external circuit board to transmit a ground signal to improve the shielding effect. The two sides of the rear wall 1134 are respectively bent forward and partially cover the outer side wall 1133 to form a side curved portion 1130. The side curved portion 1130 has a third fixing hole 1136, and the inner metal housing 112 is correspondingly provided with a notch 1124. The first insulative housing 12 is provided with a protrusion 125 that protrudes outwardly. The protrusion 125 is disposed in the third fixing hole 1136 through the notch 1124, and also insulates the outer metal housing 113 from the first. The body 12 is fixed.

Referring to the sixth to tenth drawings, the retaining structure 1137 is disposed in cooperation with the elastic piece 1122. The retaining structure 1137 provides a space for the elastic piece 1122 to move along the thickness direction of the electrical connector 100, so that the foregoing When the elastic piece is ejected in the thickness direction of the electrical connector 100 to the outside of the first receiving space 111, the elastic piece 1122 has no obstruction, is relatively labor-saving, and has no wear and can prolong the life of the elastic piece 1122. The elastic piece 1122 moves in the thickness direction of the electrical connector 100. Specifically, the elastic piece 1122 moves along the thickness direction of the elastic piece 1122 disposed in the inner metal casing 112. For example, when the elastic piece 1122 is disposed on the top wall or the bottom wall of the inner metal casing 112, the elastic piece 1122 moves along the height direction of the electrical connector 100; when the elastic piece 1122 is disposed on the side wall of the inner metal casing 112, the foregoing The elastic piece 1122 moves in the width direction of the aforementioned electrical connector 100. The elastic piece 1122 is elastically pressed out of the first receiving space 111 and then received in the retaining structure 1137, and the mating electrical connector 200 is given up.

The receiving structure 1137 is a receiving groove 1137a for receiving the elastic piece 1122. The receiving groove 1137a is recessed outward from the inner side of the outer metal housing 113. In this embodiment, the receiving groove 1137a is recessed from the inner surface of the outer metal casing 113. The thickness of the outer metal casing 113 at the receiving groove 1137a is smaller than the thickness of other portions, and the receiving groove 1137a is The outer surface is flush with the outer surface of the other adjacent portions, which is aesthetically pleasing and easy to install or store and transport.

In another embodiment of the present invention, referring to the seventh and eighth figures, the electrical connector 100 is substantially identical in structure to the above embodiment, except that the abutting structure 1137 is used. The portion of the outer metal casing 113 corresponding to the elastic piece 1122 is outwardly convex and forms a retaining structure 1137 on the inner side, and the protrusion 1137b and the outer metal casing 113 are stepped. In the structure, the thickness of the protrusion 1137b may be the same as or different from the thickness of the outer metal casing 113. The overall strength of the metal casing 113 is high.

In another embodiment of the present invention, referring to the ninth and tenth diagrams, the electrical connector 100 is substantially identical in structure to the above-described embodiment, and the difference is also in the above-described yielding structure 1137. The retaining structure 1137 is a through hole 1137c penetrating the outer metal casing 113 in the inner and outer directions, and has a simple structure and a processing technique.

Referring to the first, second and fifth to tenth drawings, the first terminal 13 has a first contact portion 131 extending to the tongue portion 122, bent at least once and used for mounting to the outside. The first mounting portion 132 on the circuit board. The first terminal 13 is fixed to the first insulative housing 12 by the first insulative housing 12 being inserted into and fixed to the first insulative housing 12; the first insulative housing 12 is injection molded. The outside of the aforementioned first terminal 13 is used to fix the two.

The first terminal 13 includes a first upper row of terminals 13a at which the first contact portion 131 is located at the top of the tongue portion 122 and a first lower row of terminals 13b at which the first contact portion 131 is located at the bottom of the tongue portion 122. Correspondingly, the first insulating body 12 includes a first upper insulating body that is injection molded on the first upper row of terminals 13a, a first lower insulating body that is injection molded on the first lower row of terminals 13b, and is injection molded on the first surface. And a first outer insulating body on the outer side of the first lower insulating body.

The plurality of first upper rows of terminals 13a are independently disposed and spaced apart from each other, and include a first upper row of contact portions 131a, a first upper row of fixing portions 133a, which are exposed on the top of the tongue portion 122 for mating with the mating electrical connector 200, a first upper row of mounting portions 132a bent downwardly and rearwardly extending rearwardly from a rear end of the upper row of fixing portions 133a, the front end of the first upper row of the contacting portions 131a being bent downwardly and inserted into the first upper insulating body The first upper row of insertion portions 134a. The aforementioned first upper row mounting portions 132a are arranged in a row so as to be surface soldered to an external circuit board.

The first lower row of terminals 13b are spaced apart from each other, and the first lower row of terminals 13b includes a first lower row of contact portions 131b, a first lower row of fixing portions 133b that are exposed at the bottom of the tongue portion 122 for mating with the mating electrical connector 200, The first lower row mounting portion 132b and the first lower row contact portion 131b for bending to the front end of the first lower row fixing portion 133b are bent obliquely upward and inserted into the foregoing Next, the first lower row of insertion portions 134b of the insulative housing. The first lower row mounting portions 132b are arranged in two rows spaced back and forth, and the first lower row mounting portions 132b are attached to the external circuit board by perforation welding. Of course, the foregoing first lower row mounting portion 132b may also be designed to be in line or parallel with the first lower row contact portion 131b as needed so as to be surface soldered to the external circuit board.

The first upper row terminal 13a and the first lower row terminal 13b respectively include a first signal terminal 135 of a plurality of transmission signals or power sources and a first ground terminal 136 for transmitting a ground signal; and the first ground terminal 136 is located in the foregoing Both sides of a signal terminal 135 effectively reduce signal interference. The first signal terminal 135 is located between the first ground terminals 136. In each row, the first signal terminal 135 includes three pairs of differential signal terminals and is disposed on the differential signal terminal and the first ground terminal 136 or adjacent to the two. For the power terminals and the like between the differential signal terminals, and the first signal terminals 135 of the upper and lower rows of the first terminals 13 are of the same type and arranged in reverse, so that the docking electrical connector 200 can be inserted in the forward and reverse directions. The inventive electrical connector 100 is electrically conductive and can perform signal transmission.

Referring to the first, second, and fifth to tenth embodiments, the first grounding strip 14 and the first insulative housing 12 are fixed in the first insulating body 12, and the first grounding strip is formed. 14 is inserted and fixed in the first insulative housing 12; the first insulative housing 12 is injection molded on the outside of the first grounding strip 14, so that the first grounding strip 14 is fixed to the first Inside the insulating body 12.

Specifically, the first grounding strip 14 is disposed between the first upper row of terminals 13a and the first lower row of terminals 13b such that signals between the first upper and lower rows of terminals 13a and 13b do not interfere with each other. The aforementioned first grounding piece 14 is formed by stamping a metal material. The first grounding piece 14 includes a flat body portion 141 and a grounding pin 142 extending downward from the rear end of the main body portion 141.

Referring to FIG. 11 and FIG. 12 , the mating electrical connector 200 includes a second insulative housing 22 , a plurality of second terminals 23 fixed to the second insulative housing 22 , and a second insulative housing 22 . The outer casing 21 on the outer side.

The second insulative housing 22 includes a second base portion 221 and an abutting portion 222 extending forwardly from the second base portion 221 and engaging with the tongue portion 122. The mating portion 222 has a second receiving space 223 for receiving the tongue portion 122. . When the electrical connector 100 is mated with the mating electrical connector 200, the second outer casing 21 is received in the first receiving space 111 and elastically squeezes the elastic piece 1122, and the tongue portion 122 is received in the second receiving space. In 223, the first terminal 13 and the second terminal 23 are connected to each other to transmit a signal.

The second terminal 23 has a second fixing portion fixed to the second insulative housing 22, a second contact portion 231 extending forwardly to the second receiving space 223, and a second extending portion extending rearwardly and extending from the second insulative housing 22 Second mounting portion 232. The second terminal 23 and the second insulative housing 22 are fixed in such a manner that after the second insulative housing 22 is formed, the second terminal 23 is inserted into and fixed in the second insulative housing 22; the second insulative housing 22 is injection molded. The outside of the second terminal 23 is fixed to the both.

The second terminal 23 includes a second upper terminal 23a at the top of the second receiving space 223 and a second contact portion 231 located at the bottom of the second receiving space 223. The second lower row terminal 23b is configured to interface with the first upper row of terminals 13a and the first lower row of terminals 13b to transmit signals.

The second upper terminal 23a and the second lower terminal 23b respectively include a second signal terminal 234 of a plurality of transmission signals or power sources and a second ground terminal 235 for transmitting a ground signal; and the second ground terminals 235 are located in the foregoing The two sides of the second signal terminal 234 effectively reduce signal interference. The second signal terminal 234 is located between the second ground terminals 235. In each row, the second signal terminal 234 includes three pairs of differential signal terminals and is disposed on the differential signal terminal and the second ground terminal 235 or adjacent to each other. For the power terminals and the like between the differential signal terminals, and the second signal terminals 234 of the upper and lower rows of the second terminals 23 are of the same type and arranged in reverse, so that the electrical connector 100 and the docking electrical connector 200 are inserted in the forward and reverse directions. Both can be electrically turned on and the signal can be transmitted.

Compared with the prior art, the electrical connector 100 of the present invention is provided with the elastic piece 1122 protruding into the receiving space in the inner metal housing 112. The elastic piece 1122 is connected to the docking electrical connector 200 after being inserted into the receiving space. The connector 200 is abutted, and the outer casing of the electrical connector 100 is in contact with the outer casing of the electrical connector 200 to improve grounding signal transmission and ground shielding of other signal transmissions, so that the electrical connector 100 of the present invention has better shielding effect. For example, the signal transmission effect of the electrical connector 100 is effectively ensured, and on the other hand, the holding force of the electrical connector 100 and the docking electrical connector 200 is enhanced by the elastic force of the elastic piece 1122.

In addition, the present invention provides a space for the elastic piece 1122 to move along the thickness direction of the electrical connector 100 by providing the retaining structure 1137 with the elastic piece 1122 in the outer metal casing 113, so that the elastic piece 1122 is elasticized. The extrusion is unobstructed when it is ejected outwards, is relatively labor-saving, and has no wear to extend the life of the aforementioned elastic piece 1122.

It is to be understood that the equivalents of the invention are intended to be included within the scope of the invention as claimed.

112‧‧‧Metal metal shell

1121‧‧‧First fixed piece

1122‧‧‧Shrap

113‧‧‧Outer metal casing

1135‧‧‧Second fix

1137a‧‧‧ Containment trough

1138‧‧‧Abutment block

13b‧‧‧First lower row of terminals

131a‧‧‧First upper row contact

132‧‧‧First Installation Department

133a‧‧‧The first upper row of fixed parts

134a‧‧‧The first upper row of inserts

14‧‧‧First grounding piece

Claims (10)

An electrical connector includes: an insulating body, a base portion and a tongue portion extending forward from the base portion; a plurality of terminals fixed to the insulating body, the terminal having a contact portion extending to the tongue portion; and being fixed to the insulating body The outer casing has a receiving space formed therein for receiving the tongue portion and the terminal contact portion; wherein the outer casing includes an inner metal casing and a metal casing sleeved outside the inner metal casing, the foregoing The inner metal casing is provided with an elastic piece protruding into the receiving space, and the outer metal casing is provided with a retaining structure that cooperates with the elastic piece, and the retaining structure provides a spring piece for the elastic piece to move along the thickness direction of the electrical connector. space. The electrical connector of claim 1, wherein the retaining structure is a receiving groove for receiving the elastic piece, and the receiving groove is recessed from an inner surface of the outer metal housing. The electrical connector of claim 1, wherein the outer metal casing and the elastic piece protrude outwardly and form a retaining structure on the inner side, and the protrusion and the outer metal casing are stepped. shape. The electrical connector of claim 1, wherein the abutting structure is a through hole penetrating the outer metal casing in an inner and outer direction. The electrical connector of claim 1, wherein the elastic piece includes a connecting portion connected to the inner metal casing, and an elastic portion extending rearward from the connecting portion and extending into the receiving space. The electrical connector of claim 1, wherein the elastic piece is disposed outside the tongue portion. An electrical connector assembly includes an electrical connector and a mating electrical connector mated with the electrical connector; the electrical connector includes a first insulative housing, a plurality of first terminals fixed to the insulative housing, and a first insulative housing a first outer casing, the first insulative housing includes a first base portion and a tongue portion extending forward from the first base portion, the first terminal has a first contact portion extending to the tongue portion; the first outer casing is Forming a first receiving space for receiving the tongue portion and the first contact portion; the first outer casing includes an inner metal shell and a metal shell sleeved outside the outer metal shell, the inner metal shell The elastic connector includes a second insulative housing, a second terminal fixed to the second insulative housing, and a second outer casing fixed to the outer side of the second insulative housing. The second insulative housing includes a second base portion and an abutting portion extending forward from the second base portion and engaging with the tongue plate portion, the abutting portion having the tongue plate received therein a second receiving space; the second terminal has a second contact portion extending forwardly to the second receiving space; the mating electrical connector is inserted into the first receiving space to interface with the electrical connector, and the elastic piece is in the docking electrical connector After being inserted into the first receiving space, the abutting electrical connector abuts. The electrical connector assembly of claim 7, wherein the outer metal housing is provided with a retaining structure that cooperates with the elastic piece, and the elastic piece is electrically connected to the docking after the mating electrical connector is inserted into the first receiving space. The device abuts and is elastically pressed out of the first receiving space to be received in the retaining structure. The electrical connector assembly of claim 8, wherein the retaining structure is a receiving groove for receiving the elastic piece, and the receiving groove is formed to be recessed outward from the inner side of the outer metal casing. The electrical connector assembly of claim 8, wherein the foregoing yielding structure is internal The outer direction penetrates the through hole of the outer metal casing.