TW201345056A - Electrical connector - Google Patents

Abstract

An electrical connector adapted for being mounted onto a printed circuit board includes an insulating housing and a contact module assembled to the insulating housing. The insulating housing includes a receiving cavity and a bottom wall for being mounted onto a printed circuit board. The contact module includes a number of terminals which defines a contact portion extending into the receiving cavity. A recessed portion is defined the bottom wall below the contact portion to increase downward movement space of the contact portion of the terminals.

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to the structure of an insulative body in an electrical connector.

Currently used RJ45 electrical connectors generally include an insulative housing having a bottom wall and a plurality of mating terminals mounted in the insulative housing. The docking terminal of the RJ45 electrical connector is provided with a first set of terminals and a second set of terminals, the first set of terminals having the contact portion, the contact portion extending away from the circuit board, and the second set of terminals having The contact portion extends in a direction toward the circuit board. If the RJ45 electrical connector is docked with the mating connector, the contact portion of the second group of terminals is easily touched to the bottom wall of the insulative housing, and the docking is performed. The contact portion of the terminal is deformed. Therefore, it is necessary to design an electrical connector that prevents deformation of the docking terminal and increases the degree of freedom and reliability of the docking terminal.

The technical problem to be solved by the present invention is to provide an electrical connector that prevents deformation of a butt terminal.

In order to solve the above problems, the present invention can adopt the following technical solution: an electrical connector can be mounted to an external circuit board, the electrical connector includes an insulating body provided with a receiving cavity and a terminal module received in the insulating body. The insulative housing includes a bottom wall mountable to an external circuit board, the terminal module includes a plurality of mating terminals, and the mating terminals are provided with a contact portion extending into the receiving cavity for electrically engaging with the mating connector, the bottom The wall is provided with a recess directly under the contact portion of the mating terminal for increasing the space in which the contact portion of the mating terminal moves downward.

Compared with the prior art, the present invention provides a recessed portion directly under the contact portion of the mating terminal, thereby relatively increasing the distance of the contact portion of the mating terminal to the bottom wall, effectively preventing the mating terminal from being in an operating state, and the contact portion thereof is easy to The phenomenon that the bottom wall of the insulating body contacts and causes the terminal to deform increases the degree of freedom and reliability of the mating terminal.

The specific implementation structure is as follows:

The recessed portion is formed by a bottom wall of the insulative housing protruding toward the outer circuit board, and an outer surface of the recessed portion forms a first supporting surface engageable with the outer circuit board.

The bottom wall is provided with a plurality of mounting posts protruding from the outer circuit board for mounting to an external circuit board.

The bottom wall is further provided with a supporting leg on the outer side of the mounting post, and the supporting leg is provided with a second supporting surface engageable with the external circuit board, and the first supporting surface and the second supporting surface are located at the same horizontal plane.

The docking terminal includes a contact portion that is in contact with the mating connector, a mounting portion that is mountable to the external circuit board, and a connecting portion that connects the contact portion and the mounting portion.

The docking terminal includes a first group of terminals and a second group of terminals, each of the first group of terminals having a first contact portion, each of the first contact portions extending away from the external circuit board, and each of the second group of terminals has a second set of terminals The second contact portion, each of the second contact portions, extends in a direction toward the external circuit board.

The connecting portion of the first group of terminals extends from the first contact portion in a direction opposite to the mating direction, and the connecting portion of the second group of terminals extends from the second contact portion toward the mating direction, the first group of terminals The mounting portion and the mounting portion of the second set of terminals extend from the bottom wall of the insulative housing and are disposed in parallel.

The first group and the second group of terminals are arranged side by side, and the second group of terminals are disposed between adjacent pairs of first group of terminals.

The terminal module includes a fixing plate integrally formed with the mating terminal, and the mounting portion extends vertically outward from the fixing plate.

The insulating body is further provided with a plurality of terminal guiding grooves, and the contact portion extends at least partially through the terminal guiding groove into the receiving cavity of the insulating body.

The design will be described in detail below with reference to the drawings.

Referring to the first to fourth figures, an electrical connector 100 according to the present invention is disclosed. The electrical connector 100 includes an insulative housing 1, a terminal module 2 received in the insulative housing 1, a positioning block 3, and a cover. The shielding body 4 of the insulating body 1 is shielded.

The insulative housing 1 is provided with an abutting surface 11 , a rear wall 12 opposite to the mating surface 11 , a bottom wall 13 attached to an external circuit board (not shown), and an upper wall 14 opposite to the bottom wall 13 . The abutting surface 11 is recessed rearward to form two receiving cavities 110 for accommodating a mating connector (not shown). Since the two receiving cavities 110 have the same structure in the present embodiment, only one of the housings is described herein. The structure of the cavity 110. The receiving cavity 110 extends through the abutting surface 11 and the bottom wall 13 respectively, and forms a mating socket 111 on the mating surface 11 , and a mounting opening 131 is formed on the bottom wall 13 . The mounting opening 131 is opposite to the opposite sides of the bottom wall 13 . The recess is formed to form a channel 132. The bottom wall 13 is provided with a recessed portion 133 formed by the bottom wall 13 protruding toward the outer circuit board (not shown). The outer surface of the recessed portion 133 forms a first surface that can be engaged with the external circuit board. a support surface 1331, the bottom wall 13 is provided with a plurality of mounting posts 15 protruding from the outer circuit board for mounting on an external circuit board, and a support leg 136 is further disposed outside the mounting post 15 of the bottom wall 13 The support leg 136 is provided with a second support surface 1361 that can cooperate with an external circuit board. The first support surface 1331 and the second support surface 1361 are located on the same horizontal plane. The rear wall 12 of the insulative housing 1 is provided with a plurality of guiding grooves 121.

Referring to the third to sixth figures, the terminal module 2 includes a fixing plate 20 and a mating terminal 201 held on the fixing plate 20 . The fixing plate 20 has a substantially U-shaped shape, and includes a main body portion 203 and two wing portions 205 extending from the main body portion 203. A space is formed between the two wing portions 205. The opposite side edges of the main body portion 203 are respectively convex outward. A guiding portion 2030 is disposed. The edge of the guiding portion 2030 further protrudes outwardly from the buckle 2031. The wing portion 205 is convexly disposed on the inner side of the two sides. The inner side of the wing portion 205 is also oppositely disposed with a pair of convex hulls 2053 located above the boss 2051. The docking terminal 201 is integrally formed with the fixing plate 20 . The docking terminal 201 extends at least partially through the guiding slot 121 of the insulative housing 1 into the receiving cavity 110 of the insulative housing 1 . The docking terminal 201 includes a first group of terminals 207 and a second group of terminals 209. The first group of terminals 207 and the second group of terminals 209 are arranged side by side, and the second group of terminals 209 are disposed adjacent to the pair of first groups. Between terminals 207. The first set of terminals 207 each have a first contact portion 2071 in contact with the mating connector, a mounting portion 2075 mountable to the external circuit board, and a connecting portion 2073 connecting the first contact portion 2071 and the mounting portion 2075, the second The group terminals 209 each have a second contact portion 2091, a mounting portion 2095 mountable to the external circuit board, and a connecting portion 2093 connecting the second contact portion 2091 and the mounting portion 2095, each of the first contact portions 2071 facing away from the external circuit board. The direction extends, and each of the second contact portions 2091 extends in a direction toward the external circuit board. The connecting portion 2073 of the first group of terminals 207 extends from the first contact portion 2071 in a direction opposite to the mating direction, and the connecting portion 2093 of each of the second group of terminals 209 extends from the second contact portion 2091 toward the mating direction. The mounting portion 2075 of the first set of terminals 207 and the mounting portion 2095 of the second set of terminals each extend out of the bottom wall 13 of the insulative housing 1 and are disposed in parallel. The mounting portion 2075 of the first group of terminals 207 and the mounting portion 2095 of the second group of terminals 209 both extend perpendicularly outward from the fixing plate 20. When the electrical connector 100 is mated with the mating connector, the second contact portion 2091 of the second group of terminals 209 is easily touched to the bottom wall 13 of the insulative housing 1 in the operating state, thereby causing the mating terminal 201 to be deformed. Therefore, the recessed portion 133 is disposed directly under the contact portion of the mating terminal 201 (refer to FIG. 6) for increasing the space in which the second contact portion 2091 of the second group of terminals 209 moves downward. Reduce the risk of product damage.

The positioning block 3 is recessed into the guide groove 31 from both sides, and a buckle arm 33 is formed above the guide groove 31.

Referring to the third and fourth figures, the terminal module 2 is assembled to the insulative housing 1 from the rear wall 12, wherein the guiding portion 2030 of the terminal module 2 is received in the channel 132 of the insulative housing 1 and is in the channel. The inner portion 203 of the terminal module 2 is fixed in the mounting port 131. At this time, the guiding portion 2030 of the mating terminal 201 can pass through the channel 132 and extend into the receiving cavity 110 of the insulative housing 1. The guide groove 31 of the positioning block 3 receives the boss 2051 of the wing portion 205 of the terminal module 2 and slides forward along the boss 2051 so that the buckle arm 33 of the positioning block 3 is clamped to the convex portion of the wing portion 205. The package 2053 is such that the positioning block 3 is mounted between the wing portions 205 of the terminal module 2, which is advantageous for fixing the terminal module 2 to the insulative housing 1.

The shielding shell 4 is formed by stamping and bending a metal sheet, and the shielding shell 4 is mounted on the insulating body 1 to achieve a masking effect.

The invention provides a recessed portion 133 directly under the contact portion of the mating terminal 201, thereby relatively increasing the distance between the bottom wall 13 of the mating terminal 201, and effectively preventing the mating terminal from contacting the bottom wall of the insulating body 1 under working condition. The phenomenon that the butted terminal 201 is deformed increases the degree of freedom and reliability of the mating terminal 201.

1. . . Insulating body

100. . . Electrical connector

11. . . Docking surface

110. . . Containment chamber

111. . . Docking socket

12. . . Back wall

121. . . The guide groove

13. . . Bottom wall

131. . . Mounting port

132. . . Channel

133. . . Depression

1331. . . First support surface

136. . . Supporting foot

1361. . . Second support surface

15. . . Mounting column

2. . . Terminal module

20. . . Fixed plate

201. . . Docking terminal

203. . . Main body

2030. . . Guide

2031. . . Buckle block

205. . . Wing

2051. . . Boss

2053. . . Convex hull

207. . . First set of terminals

2071. . . First contact

2073, 2093. . . Connection

2075, 2095. . . Installation department

209. . . Second set of terminals

2091. . . Second contact

3. . . Positioning block

31. . . Guide slot

33. . . Buckle arm

4. . . Shaded housing

The first figure is a perspective view of an electrical connector in accordance with the present invention.

The second figure is a perspective view of another perspective view of the electrical connector shown in the first figure.

The third figure is an exploded view of the electrical connector shown in the first figure.

The fourth figure is an exploded view of another perspective view of the electrical connector shown in the first figure.

The fifth figure is a perspective view of the terminal module of the electrical connector shown in the first figure.

Figure 6 is a cross-sectional view of the electrical connector shown in the first figure taken along the line VI-VI.

1. . . Insulating body

100. . . Electrical connector

12. . . Back wall

121. . . The guide groove

13. . . Bottom wall

132. . . Channel

1331. . . First support surface

136. . . Supporting foot

1361. . . Second support surface

15. . . Mounting column

2. . . Terminal module

2031. . . Buckle block

2051. . . Boss

3. . . Positioning block

31. . . Guide slot

33. . . Buckle arm

4. . . Shaded housing

Claims (10)

An electrical connector mountable to an external circuit board, the electrical connector comprising:
The insulative housing is provided with a receiving cavity and a bottom wall mountable on the external circuit board; and a terminal module, the terminal module is received in the insulating body, and the terminal module includes a plurality of mating terminals, The mating terminal is provided with a contact portion extending into the receiving cavity for electrically engaging the mating connector;
The bottom wall is provided with a recess directly under the contact portion of the mating terminal for increasing the space for the contact portion of the mating terminal to move downward. The electrical connector of claim 1, wherein the recessed portion is formed by a bottom wall of the insulative housing protruding toward an outer circuit board, and an outer surface of the recessed portion is formed to be engageable with an external circuit board. First support surface. The electrical connector of claim 2, wherein the bottom wall is provided with a plurality of mounting posts protruding toward the outer circuit board for mounting to an external circuit board. The electrical connector of claim 3, wherein the bottom wall further has a support leg on an outer side of the mounting post, the support leg being provided with a second support surface engageable with an external circuit board, The first support surface is located at the same level as the second support surface. The electrical connector of claim 1, wherein the docking terminal comprises a contact portion in contact with the mating connector, a mounting portion mountable to the external circuit board, and a connection connecting the contact portion and the mounting portion unit. The electrical connector of claim 5, wherein the docking terminal comprises a first set of terminals and a second set of terminals, each of the first set of terminals having a first contact portion, each of the first contact portions facing Extending away from the direction of the external circuit board, each of the second set of terminals has a second contact portion, and each of the second contact portions extends in a direction toward the external circuit board. The electrical connector of claim 6, wherein the connecting portion of the first set of terminals extends from the first contact portion in a direction opposite to the mating direction, and the connecting portion of the second group of terminals is from the first The two contact portions extend toward the mating direction, and the mounting portions of the first group of terminals and the mounting portions of the second group of terminals extend from the bottom wall of the insulative housing and are disposed in parallel. The electrical connector of claim 7, wherein the first group and the second group of terminals are arranged side by side, and the second group of terminals are disposed between adjacent ones of the first group of terminals. The electrical connector of claim 6, wherein the terminal module comprises a fixing plate integrally formed with the mating terminal, the mounting portion extending perpendicularly outward from the fixing plate. The electrical connector of claim 1, wherein the insulative housing is further provided with a plurality of terminal guiding grooves, and the contact portion extends at least partially through the terminal guiding groove into the receiving cavity of the insulative housing.