TWI475755B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector in which a terminal is resiliently crimped to a circuit board.

In the prior art, the terminal of the electrical connector is electrically connected to the circuit board by an elastic crimping method, for example, as disclosed in Taiwan Patent No. M385114 (corresponding to Chinese Patent No. CN200920353540.2).

The electrical connector disclosed in the aforementioned patent has a terminal integrally formed with the insulative housing, and the insulative housing is assembled with an insulative housing. The insulating housing has a receiving cavity for receiving the insulating body and the terminal coupled to the insulating body. The two sides of the insulating body respectively protrude to form a protrusion, and the insulating shell is provided with a corresponding through hole to receive the protrusion, thereby the insulating body and the insulating body The insulating housing is assembled and fixed.

Since the terminal is electrically connected to the circuit board by the elastic crimping method to form an electrical connection, a large force is generated on the insulating body, so that the insulating body is more likely to be damaged. In addition, the terminal and the insulating body are integrally molded, and the terminal needs to be positioned in the mold during the molding process of the insulating body. However, the structure of the insulating body of the electrical connector is less likely to position the terminal, and the insulating body is formed. After that, the portion of the terminal located in the insulating body is almost covered by the insulating body, and the product effect and yield after molding cannot be detected.

Accordingly, it is an object of the present invention to provide an electrical connector that can enhance the structural strength of an insulative housing and that is easy to position and facilitate detection of its terminals.

Thus, the electrical connector of the present invention comprises an insulative housing and a plurality of terminals. The insulating seat comprises a body and a casing. The body has a base, a tongue extending forward from the base, and at least a portion of a metal reinforcing plate embedded in the tongue. The housing has a mounting groove for receiving the base of the receiving body, and the housing and the body are combined and fixed by the mounting groove receiving base, and the tongue protrudes from the front side of the housing. The terminal is integrally molded with the body, and each terminal has a fixing portion, a contact portion, an extending portion and a crimping portion. The fixing portion is embedded in the body, and the contact portion extends forward from the fixing portion and is exposed on the tongue plate. On one side, the extending portion extends rearward from the fixing portion to the rear side of the body, and the crimping portion is bent by the end of the extending portion to be elastically crimped to a circuit board. Moreover, the base portion of the body is formed with a through groove to expose a portion of the fixing portion of the terminal, and a bottom surface of the housing is formed with a plurality of grooves respectively corresponding to the crimping portions located under the housing.

According to an embodiment, the metal reinforcing sheet is embedded in the tongue plate and extends to the base portion, and a portion is exposed in the through groove. The through groove penetrates the base portion up and down, and the metal reinforcing sheet has a plurality of windows communicating with the through grooves, and each of the windows corresponds to a terminal, so that the terminal can be seen from the upper and lower sides of the through groove.

The utility model has the advantages that the two parts of the body and the shell are assembled into an insulating seat, which can reduce the manufacturing difficulty compared with the integrally formed design, and the metal reinforcing sheet is integrally molded with the body to increase the tongue and the whole. The strength of the body. Furthermore, the base portion is formed with a through groove to expose a portion of the fixing portion of the terminal, thereby facilitating positioning of the terminal in the mold during molding, and can be used for detecting the terminal after molding is completed.

The foregoing and other technical contents, features and effects of the present invention will be clear in the following detailed description of a preferred embodiment of the accompanying drawings. The presentation of Chu.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 1 and FIG. 2, a preferred embodiment of the electrical connector of the present invention is adapted to be electrically connected to a circuit board 9 having a contact pad 91 on its surface, and the electrical connector 100 comprises: an insulating seat 1 a plurality of terminals 2 and a metal casing 3.

Referring to FIGS. 3-6, the insulating base 1 includes a body 4 and a housing 5 having a base portion 41 and a tongue 42 extending forwardly from the base portion 41. The housing 5 has a mounting groove 51 for receiving the base portion 41 of the receiving body 4. The mounting portion 51 accommodates the base portion 41 to fix the housing 5 and the body 4 together, and the tongue plate 42 protrudes from the front side of the housing 5. In detail, the housing 5 has a main body portion 52 and a guard plate 53 connected to the bottom side of the main body portion 52. The mounting groove 51 is formed in the main body portion 52 and has two rail portions 511 respectively located on the left and right sides and a The base portion 41 of the body 4 has a plurality of protrusions 411 on the left and right sides to fit the corresponding rail portions 511, and the front side of the front bumps 411 abuts against the defining portion. The front wall surface of the mounting groove 51 is blocked in the forward direction, and the side surface of each of the projections 411 forms a pressing rib 412 which is oppositely located on the left and right sides of the base 41 and is pressed against the second side. The side wall surface of the rail portion 511 is defined, and the base portion 41 further has a latching block 413 on the top side and two ribs 414 respectively located on the left and right sides of the latching block 413. The latching block 413 is correspondingly received in the mounting slot 51. The portion 512 (refer to FIG. 10 and FIG. 11 ), the front side of the block 413 forms a guiding slope to slide relative to the top wall 521 of the main body portion 52, and the card block 413 enters the card from the back to the front. After the portion 512, the top wall 521 is restrained in the rearward direction, and the rib 414 is pressed against the top wall surface defining the mounting groove 51. The main body 4 is restrained in the up, down, left, and right directions with respect to the casing 5 by the mounting groove 51, and the upper end of the main body 4 and the block 413 are used in the front-rear direction, and the pressing rib 412 and the rib 414 are utilized. The body 4 is tightly coupled to the housing 5, whereby the body 4 and the housing 5 are firmly coupled and fixed. The two-piece assembly of the body 4 and the housing 5 is combined into the insulating seat 1, which can reduce the manufacturing difficulty compared with the integrally formed design.

Referring to Figures 7 through 9, the terminal 2 is disposed on the body 4 and integrally molded with the body 4, and Figure 9 is shown in an exploded view for convenience of explanation. Each of the terminals 2 has a fixing portion 21, a contact portion 22, an extending portion 23 and a crimping portion 24. Referring to FIG. 11 and FIG. 12, the fixing portion 21 is embedded in the body 4, and the contact portion 22 is fixed by the fixing portion 21. Extending forward and exposing to one side of the tongue 42 , the extending portion 23 extends rearward from the fixing portion 21 out of the rear side of the body 4 , and the crimping portion 24 is bent from the end of the extending portion 23 . In this embodiment, the contact portions 22 of all the terminals 2 are exposed on the same surface of the tongue plate 42 and arranged in a row, and the extension portions 23 of all the terminals 2 protrude from the body 4 inconsistent lengths, and have two kinds of convex elongations and lengths. Arranged in a staggered manner, the corresponding crimping portions 24 are alternately arranged in front and rear positions in front and rear rows to increase the spacing between the crimping portions 24, so that the contact pads 91 on the circuit board 9 (see FIG. 1) There is more arrangement space, which allows each contact pad 91 to have a larger area to make the crimping portion 24 easier to align. Furthermore, the body 4 of the insulating seat 1 further has a plurality of extending arms 43 respectively corresponding to the longer extensions of the corresponding extending portions 23, each extending arm 43 extending rearward from the base portion 41 and abutting against the corresponding extending portion 23, And A loop portion 431 is looped over the corresponding extension portion 23, thereby supporting the longer extension of the extension portion 23, so that the crimp portions 24 of all the terminals 2 have similar elasticity, thereby crimping the terminals 2. The crimp contact between the portion 24 and the contact pad 91 of the circuit board 9 is more stable and reliable. In addition, the body 4 further has a metal reinforcing piece 44 embedded in the tongue plate 42 and extending to the base portion 41, that is, the metal reinforcing piece 44 is integrally molded with the body 4 for increasing the strength of the tongue plate 42 and the entire body 4. Further, the base portion 41 is formed with a through groove 415 to expose a portion of the fixing portion 21 of the terminal 2 and a portion of the metal reinforcing piece 44. The through hole 415 penetrates the base portion 41 up and down, and the metal reinforcing piece 44 has a plurality of windows 441 communicating with the through grooves 415, and each of the windows 441 corresponds to a terminal 2 so as to be able to see the terminal 2 from the upper and lower sides of the through groove 415. Thereby, the positioning of the terminal 2 in the mold is facilitated during molding, and can be used for detecting the terminal 2 after the molding is completed, and adjusting the impedance of the terminal 2. In addition, referring to FIG. 2, the crimping portion 24 in the front row is below the casing 5, and the bottom surface 501 of the casing 5 is formed with a plurality of grooves 54, respectively corresponding to the front row of crimping portions 24 located below the casing 5. When the crimping portion 24 is pressed against the contact pad 91 (see FIG. 1), the crimping portions 24 are accommodated so that the bottom surface 501 of the casing 5 abuts against the surface of the circuit board 9.

Referring to FIG. 1 , FIG. 2 and FIG. 11 , the metal casing 3 is assembled on the insulating seat 1 and defines an insertion space 31 around the tongue plate 42 , and has a bottom wall 32 below the tongue plate 42 and a bottom wall 32 . Joint seam 33. The guard 53 of the insulating seat 1 and the base 41 of the body 4 together define a slot 55 (see FIG. 6) for inserting the rear end of the bottom wall 32 of the metal casing 3, and supporting the guard 53 to the joint 33 places. In addition, the bottom wall 32 of the metal casing 3 is provided with two The inner side of the bottom wall 32 is recessed outward to protrude from the bottom surface of the convex hull 34 for holding a fastener (not shown) of the mating connector, and the convex hull 34 is closed and has a function of splash-proof.

In summary, the present embodiment uses the two parts of the body 4 and the housing 5 to be assembled into the insulating seat 1. Compared with the integrally formed design, the manufacturing difficulty can be reduced, and the metal reinforcing piece 44 is integrally molded with the body 4. To increase the strength of the tongue 42 and the entire body 4. Furthermore, the base portion 41 is formed with a through groove 415 to expose a portion of the fixing portion 21 of the terminal 2, thereby facilitating the positioning of the terminal 2 in the mold during molding, and can be used for detecting the terminal 2 after molding is completed. , adjust the impedance of terminal 2.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

100‧‧‧Electrical connector

1‧‧‧Insulation seat

2‧‧‧ terminals

21‧‧‧ Fixed Department

22‧‧‧Contacts

23‧‧‧Extension

24‧‧‧ crimping department

3‧‧‧Metal casing

31‧‧‧Interposed space

32‧‧‧ bottom wall

33‧‧‧ joint seam

34‧‧‧ convex hull

4‧‧‧Ontology

41‧‧‧ base

411‧‧‧Bumps

412‧‧‧forced ribs

413‧‧‧ card block

414‧‧‧ rib

415‧‧‧through slot

42‧‧‧ tongue plate

43‧‧‧Extension arm

431‧‧‧Circle Department

44‧‧‧Metal reinforcement

441‧‧‧ window

5‧‧‧Shell

501‧‧‧ bottom

51‧‧‧Installation slot

511‧‧‧Track Department

512‧‧‧Card Department

52‧‧‧ Main body

521‧‧‧ top wall

53‧‧‧ Guard

54‧‧‧ Groove

55‧‧‧Slots

9‧‧‧Circuit board

91‧‧‧Contact pads

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a relationship between a preferred embodiment of an electrical connector of the present invention and a circuit board; Fig. 2 is a view showing the preferred embodiment; Fig. 3 is an exploded view showing the preferred embodiment; FIG. 5 is a perspective view showing the insulating seat and the terminal of the preferred embodiment; FIG. 6 is another perspective view of FIG. 5; and FIG. 7 is a view illustrating the body of the insulating seat of the preferred embodiment. a perspective view of the terminal; 8 is another perspective view of FIG. 7; FIG. 9 is an exploded perspective view showing the body and the terminal of the insulating seat of the preferred embodiment; FIG. 10 is a front view of the preferred embodiment; A cross-sectional view taken along line XI-XI; and Fig. 12 is a cross-sectional view taken along line XII-XII in Fig. 10.

21‧‧‧ Fixed Department

22‧‧‧Contacts

23‧‧‧Extension

24‧‧‧ crimping department

3‧‧‧Metal casing

32‧‧‧ bottom wall

33‧‧‧ joint seam

34‧‧‧ convex hull

41‧‧‧ base

413‧‧‧ card block

415‧‧‧through slot

42‧‧‧ tongue plate

43‧‧‧Extension arm

431‧‧‧Circle Department

44‧‧‧Metal reinforcement

441‧‧‧ window

512‧‧‧Card Department

52‧‧‧ Main body

521‧‧‧ top wall

53‧‧‧ Guard

54‧‧‧ Groove

55‧‧‧Slots

Claims (9)

An electrical connector comprising: an insulating base comprising a body and a casing, the body having a base, a tongue extending forwardly from the base, and at least a portion of a metal reinforcing sheet embedded in the tongue; The housing has a mounting groove for receiving the base of the body, the housing is received by the mounting groove to fix the housing and the body, and the tongue protrudes from the front side of the housing; The terminal is integrally molded with the body, and each terminal has a fixing portion, a contact portion, an extending portion and a crimping portion. The fixing portion is embedded in the body, and the contact portion extends forward from the fixing portion. And extending on one side of the tongue plate, the extending portion extends rearward from the fixing portion to the rear side of the body, and the crimping portion is bent from the end of the extending portion; and the base portion of the body is formed with a through groove A portion of the fixing portion of the terminal is exposed, and a bottom surface of the housing is formed with a plurality of grooves respectively corresponding to the crimping portions located under the housing. The electrical connector of claim 1, wherein the metal reinforcing sheet is embedded in the tongue plate and extends to the base portion, and a portion is exposed in the through groove. The electrical connector of claim 2, wherein the through slot penetrates the base portion up and down, and the metal reinforcing sheet has a plurality of windows communicating with the through slot, each window corresponding to a terminal, respectively The terminals are viewed from the upper and lower sides of the through slot. The electrical connector of claim 1, further comprising a metal outer casing, the sleeve being disposed on the insulating seat and forming an insertion space around the tongue plate . The electrical connector of claim 4, wherein the metal casing has a bottom wall below the tongue plate and a joint seam at the bottom wall; the casing of the insulating seat has a body portion and A guard attached to a bottom side of the body portion, the guard plate being supported at the joint seam. The electrical connector of claim 1, wherein the mounting slot has two rail portions respectively located on the left and right sides, and a latching portion on the top side, and the base of the body has a plurality of a bump on the left and right sides and a block on the top side, the bumps are fit and received on the corresponding rail portions, and a side of each bump forms a pressing rib, and the pressing ribs are relatively located The left and right sides of the base are pressed against the inner wall surface of the housing, and the block is correspondingly received in the latching portion. The electrical connector of claim 1, wherein the contact portions of the terminals are located on the same side of the tongue and are arranged in a row. The electrical connector of claim 7, wherein the extension of the terminal protrudes from the body by a length that is inconsistent, and has two kinds of convex elongations and a long and short staggered configuration, so that the corresponding crimping is performed. The portions are alternately arranged in front and rear positions in two rows of front and rear; the body of the insulating seat further has a plurality of extending arms, each extending arm extending rearward from the base and correspondingly supporting a longer projecting elongation in the extending portion. The electrical connector of claim 8, wherein each of the extension arms abuts the corresponding extension and has a loop portion that is looped over the corresponding extension.