TW201841431A - Electrical connector - Google Patents

Abstract

An electrical connector comprises an insulative housing and a contact module accommodated in the insulative housing. The contact module comprises a number of contacts and an insulative block receiving the contacts. The insulative block defines a front surface. The front surface includes a first surface and a second surface, and the second surface is sunken from the first surface. The contacts include a contacting section mating with a receptacle connector. The contacting section moves along a motion trail, and the first surface and the second surface are located at a extension line of the motion trail.

Description

Electric connector

The invention relates to an electrical connector, and in particular to an electrical connector having a terminal module.

For the prior art, please refer to an electrical connector disclosed in Chinese Patent No. CN103457093A. The electrical connector includes an insulating body, a terminal module housed in the insulating body, and a shielding case covering the outer body of the insulating body. The set includes a conductive terminal housed in the insulating body and a plastic block for fixing the conductive terminal. During the docking process of the conductive terminal with the butt connector, the contact part of the butt connector is rotated by force. The front end of the plastic block must avoid the contact part that rotates. The total length of the conductive terminal and the plastic block after assembly must be conductive. Calculate the longest length of the terminal when it moves. However, with the current demand for miniaturization of electrical connectors, a new miniaturized electrical connector needs to be provided.

The technical problem to be solved by the present invention is to provide a miniaturized electrical connector.

In order to solve the above technical problems, the present invention provides an electrical connector including an insulating body and a terminal module housed in the insulating body, the terminal module including a plurality of conductive terminals housed in the insulating body and a fixing The plastic block of the conductive terminal, the plastic block is provided with a front end surface, the front end surface includes a first step surface and a second step surface, and the second step surface is recessed inward compared to the first step surface, and the conductive The terminal includes a contact portion that is docked with the mating connector, and the contact portion moves along a certain trajectory when mated with the mating connector, and the first step surface and the second step surface are disposed on the motion track of the contact portion. Extension line.

Further, the conductive terminal further includes a fixing portion and a connecting portion connecting the contact portion and the fixing portion. The contact portion is disposed obliquely. When the contact portion is forced to move clockwise, the contact portion The free end is close to the first step surface and the second step surface in order. During the movement of the contact portion, the free end of the contact portion does not contact the first step surface and the second step surface.

Further, the plastic block further includes a terminal fixing groove formed inwardly from the front surface and a partition wall between two adjacent terminal fixing grooves. The first step surface and the second step surface are disposed on On the partition wall.

Further, the partition wall includes a separation wall sandwiched between the two adjacent terminal fixing grooves, and a blocking wall extending forward from the front end of the separation wall, and the left and right edges of the blocking wall protrude from On the left and right edges of the separation wall, the first step surface and the second step surface are disposed on the blocking wall.

Further, the retaining wall further includes an inclined surface connecting the first step surface and the second step surface.

Further, the terminal module further includes a circuit board disposed above the plastic block, and the conductive terminals are electrically connected to the circuit board.

Further, the electrical connector further includes a shielding case covering the outside of the insulating body, and the shielding case is partially bent inward to form a resisting arm, and the resisting arm is in contact with the circuit board. Maintain electrical contact.

Further, the shielding shell includes left and right side walls, and the resisting arm is formed by bending inwardly from the side walls.

Further, the resisting arm is located between the circuit board and the plastic block.

Further, the two sides of the plastic block are respectively recessed inward to form two yielding gaps and two positioning blocks. The resisting arm includes a front portion and a root portion. Between the positioning blocks, a root of the resisting arm is located between the circuit board and the yielding gap.

Compared with the prior art, the present invention provides a first step surface and a second step surface on the front end surface of the plastic block, and the second step surface is recessed inward compared to the first step surface, which effectively reduces the total length of the conductive terminal after being assembled with the plastic block. Degree to achieve the miniaturization of the entire electrical connector.

Please refer to the first to eighth figures, which shows an electrical connector 100 according to the present invention, which includes an insulating body 1, a terminal module housed in the insulating body 1, and an LED housed in the insulating body 1. The lamp 3 and a shielding case 4 covering the insulating body 1. In the present invention, the directions are referred to FIG. 1. The docking direction of the electrical connector 100 in FIG. 1 is the front-back direction, the left-right direction perpendicular to the docking direction is lateral, and the vertical direction perpendicular to the docking direction is vertical.

Please refer to FIGS. 6 to 8. The terminal module 2 includes a conductive terminal 21 housed in the insulating body 1, a plastic block 22 fixing the conductive terminal 21, and a circuit board 23 disposed above the plastic block 22. The conductive terminal 21 includes a contact portion 211 mating with a mating connector (not shown), a fixing portion 212 fixed in the plastic block 22, and a connecting portion 213 connecting the contact portion 211 and the fixing portion 212. In the preferred embodiment, the plane where the fixing portion 212 is located is perpendicular to the plane where the circuit board 23 is located, the plane where the connection portion 213 is located is parallel to the plane where the circuit board 23 is located, the contact portion 211 extends obliquely upward, and the angle between the contact portion 211 and the connection portion 213 is Acute angle.

The plastic block 22 includes a base portion 222, an upper portion 221 extending upward from the base portion 222, and a limiting portion 224 extending upward from the upper portion 221. The upper portion 221 includes two ear portions 2211 on both sides, connecting the front portion 2214 and the rear portion 2212 of the two ear portions 2211, and a receiving cavity 2213 surrounded by the ear portions 2211, the front portion 2214, and the rear portion 2212. The two ear portions 2211 are partially depressed inwardly to form two yielding gaps 2217 and two positioning blocks 2216, respectively. In this embodiment, in the left-right direction, the two yielding gaps 2217 are not on the same straight line, and the structure is more stable by using a dislocation. In other embodiments, the two yielding gaps 2217 may also be disposed on the same straight line. In the left-right direction, the left and right edges of the two ear portions 2211 protrude from the left and right edges of the base 222, respectively. In the front-rear direction, the front portion 2214 is flush with the front edge of the base 222, and the rear edge of the rear portion 2212 protrudes from the rear edge of the base 222. The plastic block 22 also includes a front end surface 220, a terminal fixing groove 225 formed inwardly recessed from the front surface 220, a partition wall 226 located between two adjacent terminal fixing grooves 225, and a positioning formed by extending forward from the front surface 220.部 223. The partition wall 226 includes a partition wall 2267 sandwiched between the terminal fixing grooves 225 and a blocking wall 2264 extending forward from a front end of the partition wall 2267. The lateral thickness of the blocking wall 2264 is greater than the lateral thickness of the separation wall 2267 so as to block the conductive terminals 21 accommodated in the terminal fixing groove 225 from moving outward. In this embodiment, the left and right edges of the blocking wall 2264 protrude from the separation wall 2267. Left and right edges. The blocking wall 2264 includes a first stepped surface 2261, a second stepped surface 2262, and an inclined surface 2263 connecting the first stepped surface 2261 and the second stepped surface 2262 at the front end surface 220. The first stepped surface 2261 protrudes from the second stepped surface 2261, that is, the second stepped surface 2261 is recessed inward compared to the first stepped surface 2261, so as to give way to the contact portion 211 of the conductive terminal 21 that rotates clockwise. . In this embodiment, the inclined surface 2263 is inclined. In other embodiments, the inclined surface 2263 may be a curved surface or a horizontal plane. The circuit board 23 is assembled on the plastic block 22, and is provided with a limiting hole 234 that cooperates with the limiting portion 224, a fixing hole 232 for the tail portion of the fixing portion 212 to pass through, a plurality of coils 231, and a shield The conductive sheet 235 is electrically connected to the casing 4.

The insulating body 1 includes a receiving cavity 10 for receiving a docking connector (not shown), a terminal slot for receiving a conductive terminal 21, a lamp slot 13 for receiving an LED lamp 3, a first rear end surface 12 docked with a plastic block 22, and a first The positioning hole 14 formed by the rear end surface 12 inwardly recessed, the receiving notch 16 at the front of the receiving circuit board 23, and the abutting wall 15 above the upper surface of the receiving circuit board 23. The terminal slot includes a bottom terminal slot 111 and a rear terminal slot 112.

The shielding case 4 includes an upper wall 41, two side walls 42 formed by bending downwardly from both sides of the upper wall 41, a front wall 43 formed by bending forwardly from the upper wall 41, and a rear wall 44 connecting the rear ends of the two side walls 42. The front wall 43 is provided with an opening 431 and a lamp hole 432 through which the LED lamp 3 passes. The shielding shell 4 further includes a plurality of limiting legs 423 extending vertically downward, and a resisting arm 421 is partially bent inward by the side wall 42. The resisting arm 421 includes a front portion and a root portion. The front portion of the resisting arm 421 is clamped between the circuit board 23 and the positioning block 2216. A root portion of the resisting arm 421 is located between the circuit board 23 and the positioning portion. Give way between the gaps 2217.

Please refer to the first to eighth and tenth figures. During assembly, the terminal module 2 is assembled into the insulating body 1 from back to front, and the connecting portion 213 of the conductive terminal 21 is received in the bottom terminal slot 111 in the insulating body 1. In the middle, the tail of the contact portion 211 is received in the rear terminal slot 112, the plastic block 22 is assembled at the first rear end face 12 of the insulating body 1, the positioning portion 223 is inserted into the positioning hole 14, and the front portion of the circuit board 23 is received in the receiving gap 15 In the embodiment, the LED lamp 3 is housed in the lamp slot 13. Before assembling the shielding case 4, the resisting arm 421 of the shielding case 4 is an elastic piece extending vertically downward from the side wall 42. The shielding case 4 with the vertically downward elastic piece is set outside the insulating body 1, and then the elastic piece Bend inward to form a resisting arm 421. The resisting arm 421 is inserted between the circuit board 23 and the plastic block 22. The resisting arm 421 is in contact with the circuit board 23 to achieve grounding. The resisting arm 421 is electrically connected to the conductive sheet 235 on the circuit board 23 by resisting. The resisting arm 421 is bent inward at the yielding gap 2217. The yielding gap 2217 reserves a bending space for the resisting arm 421 to facilitate the bending of the resisting arm 421. The resisting arm 421 is clamped on the positioning block 2216. It is grounded by interference with the circuit board 23 and interference with the circuit board 23. Please refer to FIG. 10. In the present invention, the shielding case 4 is grounded by being in contact with the circuit board 23 without soldering, and the plastic block 22 is provided with a notch 2217 for the bending of the holding arm 421. In order to give way, the resisting arm 421 is an elastic piece. After bending, the resisting arm 421 is clamped between the positioning block 2216 and the circuit board 23, and the interference resists the circuit board 23 to achieve stable grounding. The whole assembly process is simple and there is no welding method, which facilitates the secondary use of parts and is environmentally friendly.

Please refer to the ninth figure. In the present invention, when mated with the mating connector, the contact portion 211 of the conductive terminal 21 moves along a certain trajectory, and the first step surface 2261 and the second step surface 2262 are disposed on the contact portion 211. The extension of the motion track. In this embodiment, the contact portion 211 of the conductive terminal 21 is rotated clockwise by force. The front end surface 220 of the plastic block 22 is provided with a first stepped surface 2261 and a second stepped surface 2262. The second stepped surface 2262 is compared to the first step. The surface 2261 is recessed inward, and provides a space for the contact portion 211 of the conductive terminal 21 that rotates clockwise. The contact portion 211 moves along the trajectory of the first step surface 2261, the inclined surface 2263, and the second step surface 2262 in sequence. The free end of the contact portion 211 approaches the first step surface 2261, the inclined surface 2263, and the second step surface 2262 in sequence. The contact makes the contact portion 211 not be blocked by the front surface 220 during the movement. While the length of the conductive terminal 21 is not changed, the overall length of the electrical connector 100 is minimized to achieve miniaturization of the electrical connector 100.

1‧‧‧Insulated body

10‧‧‧ Containment Chamber

100‧‧‧electrical connector

111‧‧‧ bottom terminal slot

112‧‧‧ rear terminal slot

12‧‧‧ the first rear face

13‧‧‧light trough

14‧‧‧ positioning holes

15‧‧‧ on the resist wall

16‧‧‧ Containment gap

2‧‧‧Terminal Module

21‧‧‧Conductive terminal

211‧‧‧Elastic contact part

212‧‧‧Fixed

213‧‧‧Connection Department

22‧‧‧Plastic Block

220‧‧‧ front face

221‧‧‧upper

2211‧‧‧Ear

2212‧‧‧ rear

2213‧‧‧Container

2214‧‧‧Front

2216‧‧‧ Positioning block

2217‧‧‧Gap

222‧‧‧Base

223‧‧‧Positioning Department

224‧‧‧Limiting Department

225‧‧‧Terminal fixing groove

226‧‧‧ partition

2261‧‧‧First step surface

2262‧‧‧Second step surface

2263‧‧‧inclined

2264‧‧‧ Retaining wall

2267‧‧‧Separation wall

23‧‧‧Circuit Board

231‧‧‧coil

232‧‧‧Fixing hole

234‧‧‧ limit hole

The first figure is a three-dimensional assembled view of the electrical connector of the present invention.

The second view is another perspective view of the first view.

The third diagram is a partial exploded view of the electrical connector shown in the first diagram.

The fourth diagram is a further exploded view of the electrical connector shown in the third diagram.

The fifth diagram is another perspective view of the fourth diagram.

The sixth diagram is a further exploded view of the electrical connector shown in the fourth diagram.

The seventh diagram is an enlarged view of the exploded view of the terminal module in the sixth diagram.

The eighth figure is a further exploded view of the electrical connector shown in the fourth figure.

The ninth figure is a sectional view of the electrical connector shown in the first figure along line IX-IX.

The tenth figure is a cross-sectional view of the electrical connector shown in the first figure along the line X-X.

no

Claims (10)

An electrical connector includes an insulating body and a terminal module housed in the insulating body. The terminal module includes a plurality of conductive terminals housed in the insulating body and a plastic block fixing the conductive terminals. The plastic block is provided with a front surface, the front surface includes a first step surface and a second step surface, the second step surface is recessed inward compared to the first step surface, and the conductive terminal includes a butt connector The contact portion moves along a certain trajectory when docked with the butt connector, and the first step surface and the second step surface are disposed on an extension line of the trajectory of the contact portion. The electrical connector according to item 1 of the scope of patent application, wherein the conductive terminal further includes a fixing portion and a connecting portion connecting the contact portion and the fixing portion, and the contact portion is disposed obliquely. When the force is moved clockwise, the free end of the contact portion approaches the first step surface and the second step surface in order. During the movement of the contact portion, the free end of the contact portion does not contact the first step surface. The stepped surface and the second stepped surface. The electrical connector according to item 1 of the scope of patent application, wherein the plastic block further includes a terminal fixing groove formed inwardly from the front surface and a partition wall between two adjacent terminal fixing grooves. The first step surface and the second step surface are disposed on the partition wall. The electrical connector according to item 3 of the scope of patent application, wherein the partition wall includes a separation wall clamped between the two adjacent terminal fixing grooves and a stop formed extending forward from the front end of the separation wall. Wall, the lateral thickness of the barrier wall is greater than the lateral thickness of the separation wall, and the first step surface and the second step surface are disposed on the barrier wall. The electrical connector according to item 4 of the scope of patent application, wherein the blocking wall further includes an inclined surface connecting the first step surface and the second step surface. The electrical connector according to item 1 of the scope of patent application, wherein the terminal module further includes a circuit board disposed above the plastic block, and the conductive terminals are electrically connected to the circuit board. The electrical connector according to item 6 of the scope of patent application, wherein the electrical connector further comprises a shielding shell covering the outside of the insulating body, and the shielding shell is partially bent inward to form a resisting arm. , The resisting arm resists to realize electrical contact with the circuit board. The electrical connector according to item 7 of the scope of the patent application, wherein the shielding shell includes left and right side walls, and the resisting arm is partially bent inwardly from the side walls. The electrical connector according to item 8 of the scope of patent application, wherein the resisting arm is located between the circuit board and the plastic block. The electrical connector according to item 9 of the scope of the patent application, wherein the two sides of the plastic block are respectively recessed inward to form two yielding gaps and two positioning blocks, the resisting arm includes a front part and a root part, and the resisting arm includes The front part of the holding arm is clamped between the circuit board and the positioning block, and the root of the holding arm is located between the circuit board and the yielding gap.