TWM508820U - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector in which a grounding lug is embedded.

The Chinese Utility Model Patent No. CN 203942066 U discloses a two-way plug and socket connector in which a socket connector is first formed with upper and lower terminal modules, and then the upper and lower terminal modules are clamped with a shielding plate, and then The plastic body is injection molded on the outside, and finally the grounding piece is assembled on the outer side of the plastic body.

In practical applications, the socket connector of the patent CN 203942066 U may have insufficient strength, and the grounding piece is finally fixed on both sides of the terminal block by assembly, and the overall smoothness of the terminal block is not good enough.

The purpose of this creation is to provide an electrical connector that is easy to manufacture.

The purpose of the present invention is achieved by the following technical solutions: an electrical connector including a terminal block, the terminal block is provided with a terminal and a grounding piece, the terminal block includes a base and a forwardly extending butt tongue, The butt tongue has two opposite abutting faces, the terminal includes a contact portion and a pin arranged on the mating face, the abutting portion defines a root portion adjacent to the base portion, the grounding plate covers the root portion, and the grounding piece includes the bare portion a flat portion that is bent at both ends of the mating surface and a side fixing portion that is embedded in the root portion, and the side fixing portion is provided with a hook at the end The hook of the sub-seat.

Compared with the prior art, the creation has the following effects: the hook portion of the grounding piece of the creation can preliminarily fix the grounding piece to avoid the displacement of the grounding piece during the injection molding process.

100‧‧‧Electrical connector

1000‧‧‧circuit board

10‧‧‧ terminal block

11‧‧‧ base

111‧‧‧Front vertical section

1111‧‧‧ rear end face

112‧‧‧After the horizontal part

12‧‧‧Connecting tongue

121‧‧‧ docking surface

122‧‧‧ Root

13‧‧‧Injected body

14‧‧‧Upper terminal module

141‧‧‧Upper insulator

142‧‧‧First convex

1421‧‧‧First guiding surface

15‧‧‧Bottom terminal module

151‧‧‧lower insulator

152‧‧‧second convex

1521‧‧‧second guiding surface

20‧‧‧ terminals

20a‧‧‧Upper terminal

20b‧‧‧lower terminal

21‧‧‧Contacts

22‧‧‧ pins

30‧‧‧ Grounding piece

30a‧‧‧Upper grounding piece

30b‧‧‧Under the grounding piece

300‧‧‧Socket connector

31‧‧‧ Flat section

311‧‧‧ front edge

312‧‧ ‧ gap

32‧‧‧Side fixation

33, 33a, 33b, 33c, 33d‧‧‧ hooking

34‧‧‧Extension

40‧‧‧shading board

42‧‧‧lateral department

41‧‧‧holding side edges

50‧‧‧Metal casing

43, 5121, 5221‧‧‧ board pins

511‧‧‧ pairs of seams

51‧‧‧Docking Department

52‧‧‧Upper casing

512‧‧‧ interface

522‧‧‧Back cover

521‧‧‧Front cover

5223‧‧‧ side wall

5222‧‧‧ top wall

5225‧‧‧ vertical

5224‧‧‧Fold

531‧‧‧ Back wall

53‧‧‧ Lower casing

The first figure is a perspective view of the electrical connector of the first embodiment of the present invention mounted on a circuit board; the second figure is an exploded perspective view of the electrical connector of the first figure; and the third figure is a perspective view of the terminal block of the second figure. The fourth figure is an exploded perspective view of the terminal block of the third figure; the fifth figure is a perspective view of the terminal block after the removal of the injection molded body in the fourth figure; the sixth figure is the side view of the terminal block after the grounding piece is removed; Figure 5 is a rear view of the terminal block after removing the grounding piece; the eighth figure is the exploded view of the terminal block after removing the grounding piece; the ninth figure is the perspective view of the grounding piece in the fifth figure; The terminal block of the second embodiment of the present invention is a perspective view of the injection molded body; the eleventh figure is a perspective view of the grounding piece in the tenth figure; and the twelfth drawing is a perspective view of the terminal block of the third embodiment of the present invention; The thirteenth figure is a perspective view of the grounding piece in the twelfth figure.

The creation is described in detail below in conjunction with the drawings.

The first to ninth figures show the electrical connector 100 of the first embodiment. The electrical connector 100 is a sinker type board end connector mounted in the notch of the circuit board 1000, that is, the pair interface 512 of the electrical connector 100. It is lower than the board mounting surface of the electrical connector 100. Referring to the second figure, the electrical connector 100 includes a terminal block 10 and a metal housing 50. The terminal block 10 includes a base portion 11 and abutting tongue plate 12 extending forward from the base portion 11. The mating tongue plate 12 has two opposing abutting faces 121. The metal casing 50 includes an abutting portion 51 that surrounds the butting tongue 12 to form a mating cavity and a rear cover portion 522 that covers the base portion 11 to provide a shielding effect. In the present embodiment, the metal casing 50 includes a surrounding buttress 12 The abutting portion 51, the upper casing 52 and the lower casing 53 forming the mating cavity are formed by bending a metal plate, the butt joint 511 is located on the upper wall of the abutting portion 51, and the front edge forms an outwardly facing pair of interfaces 512. . The upper casing 52 includes a front cover portion 521 covering the upper wall of the abutting portion 51, and a rear cover portion 522 covering the base portion 11 of the terminal block, the front and rear cover portions 521, The 522 is bent out of the circuit board pins 5211 and 5221, respectively. The rear cover portion 522 includes a top wall 5222, two side walls 5223, a bent piece 5224 bent from the front edge of the side wall 5223, and a front edge extending from the front edge of the side wall 5224. The vertical portion 5225, the bent piece 5224 is attached to the corner of the front end surface of the base portion 11 adjacent to the top wall 5222, and the vertical portion 5225 is welded to the end wall of the abutting portion 51, as shown in the first figure. The lower casing 53 is welded to the lower wall of the abutting portion 51, and further includes a rear wall 531 which covers the rear end surface 1111 of the base portion 11 of the terminal block 10 which is located inside and below the circuit board 1000. The upper housing 52 is provided with a rear wall (not labeled) that covers the rear end surface 112 of the terminal block 10 above the circuit board 1000.

Referring to the third to fifth figures, the terminal block 10 is provided with components such as a terminal 20, a grounding piece 30, and a shielding plate 40. The terminal 20 includes a contact portion 21 and a pin 22 arranged on the mating surface, and the butting portion 12 is defined. There is a root portion 122 adjacent to the base portion 11, and the grounding piece 30 covers the root portion 122. The grounding piece 30 includes a flat plate portion 31 exposed on the abutting surface 121 and a side fixing portion 32 bent from both ends of the flat plate portion 31 and embedded in the root portion 122. The side fixing portion 32 is provided with a hook portion 33 hooked to the terminal block 10. Viewed from the outside of the root portion 122, the side fixing portion 32 of the grounding piece 30 is embedded in the terminal block 10, and only the flat plate portion 31 is exposed. This structure facilitates smooth mating with a plug connector (not shown). After the grounding piece 30 is mounted on the root portion 122, the terminal block 10 is injection molded with an insulating material on the outside thereof by the secondary molding method, and after cooling, the molded body 13 is formed, thereby forming a complete terminal block 10, especially the tongue portion 12 and the base portion 11. The front half (i.e., the front vertical portion 111 of the base 11) and the rear horizontal portion 112 are not injection molded of insulating material, thus saving cost if the demand is met.

The assembly process of the terminal block 10 will be described below. Referring to FIG. 4 , FIG. 5 , FIG. 8 and FIG. 9 , the terminal block 10 includes an upper terminal module 14 , a lower terminal module 15 , and a clamping between the upper and lower terminal modules 14 and 15 . The shielding plate 40 includes an upper insulator 141 and an upper terminal 20a disposed in the upper insulator 141. The lower terminal module 15 includes a lower insulator 151 and a lower terminal 20b disposed in the lower insulator 151. The grounding piece 30 includes an upper grounding piece 30a and a lower grounding piece 30b. The lower insulating body 151 is provided at the root portion with a second convex portion 152 that fits the hooking portion 33a of the grounding piece 30a. The upper insulator 141 is provided at the root portion. The first convex portion 142 of the hook portion 33b of the grounding piece 30b. Referring to the sixth and seventh figures, the first convex portion 142 forms a first guiding surface 1421 on the bottom surface facing the lower insulator 151, and the second convex portion 152 forms a second guiding surface on the top surface facing the upper insulator 141. The lead surface 1521 is provided with a stud at the root of the upper and lower insulators 141 and 151 (not shown). . After the upper and lower terminal modules 14 and 15 and the shielding plate 40 are assembled, the grounding piece 30 is respectively attached to the root portion from both sides of the root portion 122, and the hooking portion 33a of the first grounding piece 30a is guided to slide through the second convex portion. The second guiding surface 1521 of the 152 is fastened to the second convex portion 152, and the second grounding piece 30b hooking portion 33b guides the first guiding surface 1421 of the first convex portion 142 and is buckled at the first convex portion. The portion 142 is thereby fixed to the upper and lower grounding pieces 30a, 30b on the upper and lower insulators 141, 151. The height of the first and second convex portions 142, 152 is 0.325 mm in a direction perpendicular to the two abutting faces. The flat portion 31 of the grounding strip 30 defines a front edge 311. The front edge 311 is provided with a recess 312 recessed rearward. The notch 312 is just aligned with the stud, and the grounding strip 30 can be positioned in the front-rear direction. The extending portion 34, in which the rear edge of the portion 31 is vertically bent, is attached to the upper and lower insulators 141, 151. When viewed from the back, it can be seen that the side fixing portion 32 is spaced apart from the shield plate 40 and the outermost ground terminal of the terminal 20 by a certain distance, and is not in contact. Then, the insulating material is injection molded on the inner side of the upper and lower terminal modules 14, 15 and the grounding piece 30 by an injection molding method to form a complete abutting tongue plate 12 and a front vertical portion 111 of the base portion 11, and the protruding column is injection molded. During the molding process, the upper surface of the flat plate portion 31 of the grounding piece 30 is permanently flattened and flushed, that is, the notch 312 is filled with the insulating material forming the terminal block 10. The upper edge of the stud has a lead angle, which can reduce the stud The volume is deformed to prevent the insulating material from being extruded to the upper surface of the grounding piece 30. After the injection molding is completed, the notch 312 is filled with the insulating material forming the terminal block; the extending portion 34 of the grounding piece 30 is buried in the terminal block 10.

The shielding plate 40 is located between the upper and lower terminals 20a, 20b, and has a locking side edge 41 extending from the abutting tongue 12, and a lateral portion 42 extending outwardly at the rear ends thereof, the rear portion 42 The edges extend out of the board pins 43, respectively, and the board pins 43 are located on both sides of the upper and lower terminal pins.

In this embodiment, the hooking portion 33a of the upper grounding piece 30a is a mouth-shaped type, and the hooking portion 33b of the lower grounding piece 30b is an L-shaped structure, and the hooking direction of the hooking portion of the same grounding piece is opposite. The hooking directions of the hook portions 33a, 33b of the upper and lower grounding pieces 30a, 30b are oppositely disposed.

The tenth and eleventh figures show the socket connector 200 of the second embodiment, the main difference being the hooking portion 33c, and the hooking portions 33c of the upper and lower grounding pieces are all of a mouth shape. The twelfth and thirteenth figures show the socket connector 300 of the third embodiment, wherein the hooking portions 33d of the upper and lower grounding pieces are of an L-shaped structure, and the hooking direction of the hooking portion of the same grounding piece is Conversely, the direction of the hook of the hook portion of the upper and lower grounding pieces is oppositely set. In other embodiments, the hook portion may also be a U-shaped structure or a combination of a U-shaped structure and the above-described L-shaped or square-shaped structure.

In summary, this creation is in line with the new patent requirements, and the patent application is filed according to law. However, the above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and any equivalent modification or change made by a person familiar with the skill of the present invention in accordance with the spirit of the present invention should be It is covered by the following patent application.

11‧‧‧ base

111‧‧‧Front vertical section

112‧‧‧After the horizontal part

121‧‧‧ docking surface

122‧‧‧ Root

20‧‧‧ terminals

21‧‧‧Contacts

30‧‧‧ Grounding piece

31‧‧‧ Flat section

40‧‧‧shading board

Claims (10)

An electrical connector includes a terminal block in which a terminal and a grounding piece are disposed, the terminal block includes a base and a forwardly extending abutting tongue, and the butting tongue has two opposite abutting faces. The terminal includes a contact portion and a pin arranged on the abutting surface, the abutting tongue defines a root portion adjacent to the base portion, and the grounding plate covers the root portion; wherein the grounding piece includes a flat plate portion exposed on the abutting surface and The side fixing portion is bent at both ends of the flat plate portion and embedded in the root portion, and the side fixing portion is provided with a hook portion hooked to the terminal block. The electrical connector of claim 1, wherein the hooking portion is an L-shaped structure, a U-shaped structure, or a square-shaped structure. The electrical connector of claim 2, wherein the hooking direction of the hooking portions at both ends of the grounding piece is oppositely disposed. The electrical connector of claim 1, wherein the flat portion of the grounding strip defines a front edge, and the front edge is provided with a recess recessed rearwardly filled with an insulating material forming the terminal block. The electrical connector of claim 1, wherein the grounding strip comprises an extension that is bent perpendicularly from a rear edge of the flat portion, the extension being embedded in the terminal block. The electrical connector of claim 1, wherein the electrical connector comprises a metal outer casing, the metal outer casing comprising an abutting portion surrounding the butting tongue to form a docking cavity and a rear cover portion covering the base. The electrical connector of any one of clauses 1 to 6, wherein the terminal block comprises an upper terminal module, a lower terminal module, and is clamped thereon, a shielding plate between the lower terminal modules, the upper terminal module includes an upper insulator and an upper terminal disposed in the upper insulator, the lower terminal module includes a lower insulator and a lower terminal disposed in the lower insulator; the grounding The sheet includes an upper grounding piece and a lower grounding piece. The upper insulating body is provided at the root portion with a first convex portion matching the hooking portion of the lower grounding piece, and the lower insulating body is provided at the root portion with a second convex portion matching the hooking portion of the grounding piece . The electrical connector of claim 7, wherein the shielding plate is located between the upper and lower terminals and extends outwardly at the rear ends of the two sides, and the rear edge of the lateral portion respectively extends with the circuit board. Pins, board pins are located on both sides of the upper and lower terminal pins. The electrical connector of claim 7, wherein the first protrusion forms a first guiding surface on a bottom surface of the downward facing insulator, and the second protrusion forms a second surface on a top surface facing the upper insulator Guide surface. The electrical connector of claim 7, wherein the height of the first and second protrusions is 0.325 mm in a direction perpendicular to the two abutting faces.