TWI719191B - Electrical connector - Google Patents

Abstract

An electrical connector comprising an insulative housing, a number of conductive terminals affixed to the body, a front shielding shell and a rear shielding shell enclosing the body. The insulative housing comprises a base portion and a tongue portion extending forwardly from the base portion. The base portion comprises an outer peripheral portion and a rear surface. The front shielding shell encloses the outer peripheral portion. The rear shielding shell is affixed to the base portion and covers the rear face so as to cover the insulative housing in the front, rear, left and right directions, in cooperation with the front shielding shell. The insulative housing are completely covered by the front shielding shell and the rear shielding shell.

Description

Electrical connector

The present invention relates to an electrical connector, in particular to an electrical connector with a good electromagnetic shielding effect.

Please refer to the Chinese Announcement No. CN204720724U Utility Model Patent, which discloses an electrical connector, including a shield shell, the shield shell includes a top cover and a rear cover connected to the top cover, the rear cover Partially covers the body, but there is still a gap between the back cover and the top cover, so that the back cover cannot completely shield the electromagnetic interference.

Therefore, it is indeed necessary to provide a new electrical connector to overcome the above-mentioned drawbacks.

The purpose of the present invention is to provide a new electrical connector with a good electromagnetic shielding effect.

The object of the present invention is achieved by the following technical solutions: an electrical connector, comprising a body carrying a plurality of conductive terminals, a front shielding shell and a rear shielding shell covering the body, the body including a base and a side edge The base is a mating tongue extending forward. The base has an outer periphery and a rear end. The front shielding shell is fixed and covers the outer periphery of the base. The rear shielding shell is assembled to the base and covers the outer periphery of the base. The rear end surface and the outer periphery are matched with the front shielding shell to shield the main body in the front, rear, left, and right directions.

Further, the base includes a front base and a rear base, the rear base and the front base are stepped, and the rear end surface includes an upper rear end surface located at the front base, a lower rear end surface located at the rear base, and a connection The stepped surface of the rear end surface and the lower rear end surface, the rear base further includes left and right sides, the outer periphery includes the left, right and upper surfaces of the front base and the left and right sides of the rear base, so The rear shielding shell includes an upper covering part, a middle covering part, a lower covering part, and a left and right covering parts respectively covering the upper rear end face, the step face, the lower rear end face and the left and right side faces of the rear base part.

Further, the rear shielding shell is formed by stamping and bending a sheet metal, the upper covering part is formed by bending upward from the front edge of the middle covering part, and the side covering part is formed from the left and right ends of the middle covering part. Formed by downward bending, the lower covering portion is formed by bending downward from the rear edge of the middle covering portion, and both ends of the lower covering portion further extend forward and bend to form a first cover covering the side covering portion The lamination part, the first lamination part covers the gap between the lower covering part and the side covering part.

Further, the side covering portion further includes a second laminated portion that continues to extend forward and covers the front shielding shell.

Further, the rear shielding shell is formed by stamping and bending a sheet metal, the upper covering part is formed by bending upward from the front edge of the middle covering part, and the side covering part is formed from the left and right ends of the middle covering part. Formed by downward bending, the lower covering portion is formed by bending downward from the rear edge of the middle covering portion, and the middle covering portion is reversely bent to cover both ends of the middle covering portion on both sides of the front edge. The third lamination part, the left and right ends of the third lamination part are bent to form a fourth lamination part covering the side covering part, and the fourth lamination part connects the middle covering part and the side covering part and The gap of the lower covering part is covered.

Further, the front shielding shell is made of metal powder injection molding, and includes a rectangular fixing part covering the outer periphery of the base and a mating part extending forward, and a mating cavity is formed between the mating part and the mating tongue plate .

Further, a metal plate is provided in the body, and the metal plate includes a main plate portion located between two opposite surfaces of the mating tongue plate, and side edges of lock buckles extend on both sides of the main plate portion, and the lock The side edges of the buckle constitute a part of the opposite side surfaces of the butting tongue plate.

Further, the metal plate includes a pair of vertical plates integrally provided from the rear end of the main plate portion, a thickened portion located behind the vertical plate, and pins, the vertical plate and the main plate portion are perpendicular to each other, the The main plate part is integrally provided with the thickened part behind the vertical plate, and the pins are formed by bending downward from the thickened part.

Further, the plurality of conductive terminals includes a row of first terminals and a row of second terminals, the electrical connector includes a first terminal module and a second terminal module, and the first terminal module includes a first insulator and The first terminal buried in the first insulator, the second terminal module includes a second insulator and the second terminal buried in the second insulator, and the main board is clamped between the first and second insulators In between, the first and second insulation are limited left and right between the pair of vertical plates.

Further, a first side protrusion is formed on the outer side of the thickened portion, the front shielding shell is provided with a second side protrusion having an opening, and the first side protrusion is accommodated in the second side protrusion Inside the opening.

Compared with the prior art, the present invention has the following beneficial effects: since the rear shielding shell completely covers the front shielding shell and the rear end of the main body, it has a good electromagnetic shielding effect.

100, 200, 300, 400: electrical connector

1: body

11: Base

111: front base

112: rear base

1121: left and right sides

113: Outer periphery

114: rear face

1141: upper rear face

1142: Step Surface

1143: lower rear face

12: Butt tongue

13: The first terminal module

130: first insulator

131: First front base

132: First tongue

133: first rear base

14: The second terminal module

140: second insulator

141: second front base

142: Second tongue

143: second rear base

15: third insulator

16: second gap

2: conductive terminal

21: The first terminal

22: second terminal

23: Contact

24: pin

25: middle part

3: metal plate

31: Main Board Department

311: Lock side edge

32: vertical board

33: Thickened part

331: first side bump

34: Welding feet

4: Front shielding shell

40: Docking cavity

41: Docking Department

42: Rectangular fixed part

421: second side bump

4211: opening

5: Waterproof rubber sheet

6, 7, 8, 9: rear shielding shell

61, 71, 81, 91: upper cover

911: Fifth Layer

62, 72, 82, 92: middle cover

721: Third Stack

722: The fourth stack

63, 73, 83, 93: side cover

631, 831: second stacking part

64, 74, 84, 94: lower cover

641: The first stack

65, 75: first gap

The first figure is a three-dimensional schematic diagram of the first embodiment of the electrical connector of the present invention.

The second figure is an exploded perspective view of the first embodiment of the electrical connector of the present invention.

The third figure is a cross-sectional view of the first figure along the line III-III.

The fourth figure is a schematic diagram of the first figure viewed from another direction.

The fifth figure is a three-dimensional schematic diagram of the first embodiment of the electrical connector of the present invention when the rear shielding shell is not covered.

The sixth figure is a three-dimensional exploded view of the main body and the front and rear shielding shells in the first embodiment of the electrical connector of the present invention.

The seventh figure is a three-dimensional schematic diagram of the rear shielding shell in the first embodiment of the electrical connector of the present invention.

The eighth figure is a partial three-dimensional exploded view of the body of the first embodiment of the electrical connector of the present invention.

The ninth figure is a perspective exploded view of the body of the first embodiment of the electrical connector of the present invention.

The tenth figure is a schematic diagram of the ninth figure when viewed from another direction.

Figure eleven is a perspective schematic view of the second embodiment of the electrical connector of the present invention.

The twelfth figure is a three-dimensional schematic view of the eleventh figure viewed from another direction.

Figure 13 is a perspective schematic view of the rear shielding shell of the second embodiment of the electrical connector of the present invention.

The fourteenth figure is a three-dimensional schematic diagram along the line XIV-XIV in the eleventh figure.

Figure 15 is a perspective schematic view of the third embodiment of the electrical connector of the present invention.

Figure 16 is a perspective view of the electrical connector in the third embodiment of the present invention when the rear shielding shell does not cover the electrical connector.

Figure 17 is a perspective view of the rear shielding shell of the third embodiment of the electrical connector of the present invention.

Figure 18 is a perspective schematic view of the fourth embodiment of the electrical connector of the present invention.

The nineteenth figure is a perspective schematic view of the fourth embodiment of the electrical connector of the present invention when the shielding shell does not cover the electrical connector.

Figure twentieth is a perspective schematic view of the rear shielding shell in the fourth embodiment of the electrical connector of the present invention.

Please refer to the first to the twentieth drawings together, which is an electrical connector 100 according to the present invention. Please refer to the first to tenth figures, which show the electrical connector 100 according to the first embodiment of the present invention. As shown in Figures 1 to 3, the electrical connector 100 is welded to a circuit board (not shown) and includes a body 1 carrying a plurality of conductive terminals 2 and a front shielding shell 4 covering the body 1 , The rear shielding shell 6 and the waterproof rubber sheet 5 sealing the slits between the rear end of the body and the front and rear shielding shells.

As shown in the first to third figures, the body 1 includes a base 11 and a mating tongue 12 extending forward along the base 11. The conductive terminal 2 includes a contact part 23 arranged on the mating tongue, and an extension The pins 24 out of the base and the middle portion 25 connecting the contact portion and the pins. In this embodiment, the plurality of conductive terminals are divided into two rows and arranged on the upper and lower surfaces of the mating tongue. The main body 1 is provided with a metal plate 3, the metal plate includes a main plate portion 31 located between two opposite surfaces of the mating tongue plate, and locking side edges 311 extend on both sides of the main plate portion. The side edge of the lock buckle constitutes a part of the opposite side surface of the butting tongue plate.

The base portion 11 has an outer periphery 113 and a rear end surface 114. The base portion 11 includes a stepped front base 111 and a rear base 112. The side view of the third figure is combined with the first description, because the body 1 of this embodiment is also The glue is injected at the end, and the glue flows into and shields the space between the shell and the main body. Therefore, in the case of glue sealing, the outer periphery and rear end of the main body include the part formed by the glue, although the glue is injected last. The outer periphery of the front base refers to the left and right sides and upper and lower surfaces (not numbered), the outer periphery of the rear base refers to the left and right sides 1121, and the rear end surface 114 includes the upper and rear ends 1141 of the front base 111. The step surface 1142 on the upper surface of the rear base 112 and the lower rear surface 1143 of the rear base 112 are located. The outer periphery of the base 11 includes the outer periphery of the front base 111 and the left and right sides 1121 of the rear base 112. The front shielding shell 4 is fixed and covers the outer periphery of the base 11, and the rear shielding shell 6 is assembled to the base 11 and covers The rear end surface 114 and the outer periphery 113 of the base part cooperate with the front shielding shell to shield the main body 1 in the front, back, left, and right directions.

In this embodiment, the front shielding shell 4 is formed by metal powder injection molding. The front shielding shell 4 includes a rectangular fixing portion 42 fixed to the front base 111 and covering the outer periphery of the front base, and a mating portion 41 extending forward. A docking cavity 40 is formed between the docking portion 41 and the docking tongue plate 12. The rear end of the rectangular fixing portion 42 is protruded with a second side protrusion 421, and the middle of the second side protrusion 421 is provided with an opening 4211.

In this embodiment, the rear shielding shell 6 is formed by stamping and bending of sheet metal, and the rear shielding shell 6 is assembled to the rear base 112 and covers the rear end 114 and the outer periphery 113 of the base 11, In cooperation with the front shielding housing 4, the main body 1 is shielded in the front, rear, left, and right directions. The rear shielding shell 6 includes an upper covering portion 61, a middle covering portion 62, and a lower covering portion 61 respectively covering the upper rear end surface 1141, the stepped surface 1142, the lower rear end surface 1143, and the left and right side surfaces 1121 of the rear base 112. The covering portion 64 and the left and right side covering portions 63. The upper covering portion 61 is formed by bending upward from the front edge of the middle covering portion 62, the side covering portion 63 is formed by bending downward from the left and right ends of the middle covering portion 62, and the lower covering portion 64 is formed by bending downward from the left and right ends of the middle covering portion 62. The rear edge of the middle covering portion 62 is formed by bending downwards, so that the rear end surface of the base portion and the left and right side surfaces of the rear base portion have been covered. However, during bending, there is a first gap 65 at the boundary between the two side covering parts 63 and the lower covering part 64. Both ends of the lower covering portion 64 of the rear shielding shell 6 further extend forward to bend a first laminated portion 641, the first covering portion covers the side covering portion 63, thereby connecting the lower covering portion 64 and the side covering portion The first gap 65 of 63 covers, and further plays a role of shielding. The side covering portion 63 further extends forward with a second laminated portion 631 covering the front shielding shell 4. The second laminated portion 631 covers the front end of the second side bump 421. In this embodiment, the front shielding shell 4 can also be formed by stamping and bending a sheet metal, and the rear shielding shell is pressed against the rear edge of the front shielding shell, or it is further extended to cover the laminated portion of the front shielding shell. , Thereby bending and shielding the junction of the front and rear shielding shells.

The specific structure of the main body 1 of this embodiment will be described below.

Referring to FIGS. 9 to 10, the conductive terminal 2 includes a row of first terminals 21 and a row of second terminals 22. The electrical connector includes a first terminal module 13 and a second terminal module 14. The first terminal module includes the first insulator 130 and the first terminal 21 embedded in the first insulator. The second terminal module 14 includes the second insulator 140 and the second terminal 22 embedded in the second insulator.

The main plate portion 31 of the metal plate 3 is located between the two opposite surfaces of the mating tongue plate 12. The metal plate also includes a pair of vertical plates 32 integrally provided from the rear end of the main plate portion 31. The thickened part 33 and the welding foot 34 at the rear. The vertical plate 32 and the main plate portion 31 are perpendicular to each other, the thickened portion 33 and the main plate portion 31 are integrally provided, and the welding leg 34 is formed by bending down from the thickened portion 33. A first side bump 331 is formed on the outer side of the thickened portion 33, and the first side bump is clamped in the opening 4211.

The first and second terminal modules 13, 14 are arranged on the upper and lower sides of the metal plate 3. The main board portion 31 is clamped between the first and second insulators 130 and 140, and the first and second insulators are The left and right are restricted between a pair of vertical plates 32, as described in the ninth figure. Then, the third insulator 15 is injection molded on the outer sides of the first and second terminal modules 13 and 14 and the metal plate 3 to form a complete body 1. Wherein, the main board portion 31 is clamped between the first and second insulators 130 and 140. The first insulator 130 includes a first front base 131, a first tongue 132 extending forward along the first front base, and a first rear base 133 extending backward along the first front base. The second insulator 140 includes a second front base 141, a second tongue 142 extending forward along the second front base, and a second rear base 143 extending backward along the second front base. The first and second front bases 131 and 141 are located between the pair of vertical plates 32 and form the front base 111 together with the vertical plates 32. The first and second rear bases 133 and 143 are located between the thickened portion 33 and form the rear base 112 together with the thickened portion 33. Of course, the rear base in this embodiment also includes a waterproof rubber sheet 5.

The eleventh to fourteenth figures show the electrical connector 200 of the second embodiment, the fifteenth figure to the seventeenth figure show the electrical connector 300 of the third embodiment, and the eighteenth to twentieth figures The figure shows the fourth In the electrical connector 400 of the embodiment, the body 1 and the front shielding shell 4 of the electrical connectors are the same, and the main difference lies in the rear shielding shell, so the same structure adopts the same reference numerals.

Referring to the eleventh to fourteenth figures, the rear shielding shell 7 in the electrical connector 200 is formed by stamping and bending a sheet metal. The rear shielding shell 7 includes an upper covering portion 71, a middle covering portion 72, and a lower covering portion 71 respectively covering the upper rear end surface 1141, the stepped surface 1142, the lower rear end surface 1143, and the left and right side surfaces 1121 of the rear base. Section 74 and left and right side covering sections 73. The upper covering portion 71 is formed by bending upward from the front edge of the middle covering portion 72, the side covering portion 73 is formed by bending downward from the left and right ends of the middle covering portion 72, and the lower covering portion 74 is formed by bending downward from the left and right ends of the middle covering portion 72. The rear edge of the middle covering portion 72 is formed by bending downward. The middle covering portion 72 is reversely bent on both sides of the front edge to form a third laminated portion 721 covering both ends of the middle covering portion 72. The left and right ends of the third lamination portion 721 are bent to form a fourth lamination portion 722 covering the side covering portion 73. The fourth lamination portion 722 covers the first gap 75 between the middle covering portion 72 and the side covering portion 73 and the lower covering portion 74.

In the second embodiment, referring to the twelfth figure, the third laminated portion 721 is reversely bent and formed from the front two sides of the middle covering portion 72, so that both sides of the edge of the upper covering portion 71 cannot be completely covered. The upper rear end surface 1141, that is, the upper rear end surface, has a second gap 16 that is not covered by the upper covering portion. The vertical plates 32 of the metal plate 3 are located on both sides of the base 11, just in front of the second gap 16, and the vertical plates 32 made of metal compensate for the shielding effect of the gap in the front-to-rear direction. Of course, when the metal plate has no vertical portion, the third stacking portion 721 needs to be moved to both ends to ensure that the upper covering portion 71 can completely cover the upper rear end surface 1141.

As shown in Figs. 15 to 17, in the electrical connector 300 of the third embodiment, the rear shielding shell 8 is injection molded from metal powder. The rear shielding shell 8 includes an upper covering portion 81, a middle covering portion 82, and a lower covering portion 81, which respectively cover the upper rear end surface 1141, the stepped surface 1142, the lower rear end surface 1143, and the left and right side surfaces 1121 of the rear base 112. Cover portion 84 and side cover portion 83. The upper covering portion 81 is formed by bending upward from the front edge of the middle covering portion 82, and the side covering portion 83 is formed from the middle covering portion 82 The left and right ends are bent downward, and the lower covering portion 84 is formed by bending downward from the rear edge of the middle covering portion 82. The side covering portion 83 further extends forward with a second laminated portion 831 covering the front shielding case 4. The second laminated portion 831 covers the front end of the second side bump 421.

Since the rear shielding shell 8 is formed of metal powder, there is no gap between the middle covering portion 82 and the side covering portion 83 and the lower covering portion 84. The rear shielding shell 8 can completely cover the rear end of the electrical connector 300 to form a good shielding effect.

Please refer to FIG. 18 to FIG. 20, which are the fourth embodiment of the electrical connector 400 of the present invention.

The rear shielding shell 9 is formed of a metal film. The rear part of the electrical connector 400 is pasted with a metal film. The shape of the metal film can be folded arbitrarily and can seal the smallest gap at the end of the electrical connector. The rear shielding shell 9 includes an upper covering portion 91, a middle covering portion 92, and a lower covering portion 91 respectively covering the upper rear end surface 1141, the stepped surface 1142, the lower rear end surface 1143, and the left and right side surfaces 1121 of the rear base 112. Covering portion 94 and side covering portion 93. The upper covering portion 91 is formed by bending upward from the front edge of the middle covering portion 92, the side covering portion 93 is formed by bending downward from the left and right ends of the middle covering portion 92, and the lower covering portion 94 is formed by bending downward from the left and right ends of the middle covering portion 92. The rear edge of the middle covering portion 92 is formed by bending downward. A fifth laminated portion 911 extends vertically forward from the upper end of the upper covering portion 91 and covers the end of the upper surface of the front shielding shell 4.

Since the metal film has good ductility and can be folded arbitrarily, the gap at the rear end of the electrical connector 400 can be sealed, thereby achieving a good electromagnetic shielding effect.

The foregoing descriptions are only part of the embodiments of the present invention, not all of them. Any equivalent changes made to the technical solutions of the present invention by those of ordinary skill in the art by reading the description of the present invention are covered by the claims of the present invention. .

41: Docking Department

42: Rectangular fixed part

61: Upper cover

62: Middle Cover

63: Side cover

64: Lower cover

641: The first stack

Claims (9)

An electrical connector includes a body carrying a plurality of conductive terminals, a front shielding shell and a rear shielding shell covering the body. The body includes a base and a mating tongue extending forward along the base. The base has The outer periphery and the rear end face, wherein the front shielding shell is fixed and covers the outer periphery of the base part, and the rear shielding shell is assembled to the base part and covers the rear end face and outer periphery of the base part so as to be in contact with the The front shielding shell cooperates to shield the body in the front, rear, left, and right directions. The base includes a front base and a rear base. The rear base and the front base are stepped. The upper rear end surface of the front base, the lower rear end surface of the rear base, and the step surface connecting the upper rear end surface and the lower rear end surface, the rear base further includes left and right side surfaces, and the outer periphery includes the front base Left, right and upper surfaces and the left and right sides of the rear base, the rear shielding shell includes left and right sides covering the upper rear end, stepped surface, lower rear end and the rear base, respectively The upper cover, middle cover, lower cover, and left and right cover parts. The electrical connector according to claim 1, wherein the rear shielding shell is formed by stamping and bending a sheet metal, the upper covering portion is formed by bending upward from the front edge of the middle covering portion, and the side covering The lower covering portion is formed by bending downward from the left and right ends of the middle covering portion, the lower covering portion is formed by bending downward from the rear edge of the middle covering portion, and both ends of the lower covering portion are further extended forward and bent A first lamination part covering the side covering part is provided, and the first lamination part covers a gap between the lower covering part and the side covering part. The electrical connector according to claim 2, wherein the side covering portion further includes a second laminated portion that continues to extend forward and covers the front shielding shell. The electrical connector according to claim 1, wherein the rear shielding shell is formed by stamping and bending a sheet metal, and the upper covering part is formed by bending upward from the front edge of the middle covering part, The side covering portion is formed by bending downward from the left and right ends of the middle covering portion, the lower covering portion is formed by bending downward from the rear edge of the middle covering portion, and the middle covering portion is formed on both sides of the front edge. The third lamination part covering both ends of the middle covering part is bent in the opposite direction, and the left and right ends of the third lamination part are bent to form a fourth lamination part covering the side covering part, and the fourth lamination part covers the side covering part. The lamination part covers the gap between the middle cover part and the side cover part and the lower cover part. The electrical connector according to claim 1, wherein the front shielding shell is made of metal powder injection molding, and includes a rectangular fixing part covering the outer periphery of the base part and a mating part extending forward, the mating part A butting cavity is formed between the butting tongue plate. The electrical connector according to claim 1, wherein a metal plate is provided in the main body, and the metal plate includes a main board portion located between two opposite surfaces of the mating tongue plate, and two of the main board portion A side edge of the lock buckle extends from the side, and the side edge of the lock buckle constitutes a part of the opposite side surface of the butting tongue plate. The electrical connector according to claim 6, wherein the metal plate includes a pair of vertical plates integrally provided from the rear end of the main plate, a thickened portion located behind the vertical plate, and pins, and the vertical plate The straight board and the main board are perpendicular to each other, the main board is integrally provided with the thickened portion behind the vertical board, and the pins are formed by bending downward from the thickened portion. The electrical connector according to claim 7, wherein the plurality of conductive terminals include a row of first terminals and a row of second terminals, the electrical connector includes a first terminal module and a second terminal module, so The first terminal module includes a first insulator and a first terminal buried in the first insulator, the second terminal module includes a second insulator and the second terminal buried in the second insulator, and the main board is It is clamped between the first and second insulators, and the first and second insulators are limited left and right between the pair of vertical plates. The electrical connector according to claim 7, wherein the outer side of the thickened portion is formed with a first side bump, the front shielding shell is provided with a second side bump with an opening, and the first side The bump is received in the opening of the second side bump.

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