CN114256695A

CN114256695A - Electrical connector

Info

Publication number: CN114256695A
Application number: CN202111298140.8A
Authority: CN
Inventors: 蔡伦; 杜思诗
Original assignee: Lotes Co Ltd
Current assignee: Lotes Co Ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-03-29

Abstract

The invention discloses an electric connector, comprising: insulator and a plurality of terminals, each terminal has a contact site and is used for contacting the butt joint, a plurality of terminals include a plurality of signal terminals, insulator has a grafting portion, the grafting portion inserts in the butt joint along an insertion direction, the grafting portion is equipped with the hole of stepping down that runs through the grafting portion, the hole of stepping down supplies the instrument to get into the partly of cutting off the signal terminal that corresponds, signal terminal forms a section after the excision, and the contact site along inserting direction signal terminal is more far away from the grafting end of grafting portion than the section, the section protrusion of two signal terminals just accepts in the same hole of stepping down in the pore wall in hole. Thus, the length of the signal terminal is shortened to improve high frequency.

Description

Electrical connector

[ technical field ] A method for producing a semiconductor device

The present invention relates to an electrical connector, and more particularly, to an electrical connector for improving high frequency.

[ background of the invention ]

The conventional HDMI TYPE _ A electric connector comprises an insulating body and an upper row of terminals and a lower row of terminals embedded in the insulating body, wherein the upper row of terminals and the lower row of terminals comprise grounding terminals and signal terminals with the same length, and because the final position of the contact between the signal terminals and the butt-joint terminals is far away from the front ends of the signal terminals (the distance is 2.82mm, and the high frequency has large resonance at 18.5 GHZ), the difference loss and crosstalk are not good, so that the transmission rate of the signal terminals is not high, and the high frequency of the signal terminals is influenced.

Therefore, there is a need for a new electrical connector to overcome the above problems.

[ summary of the invention ]

In order to solve the above-described problems of the prior art, an object of the present invention is to provide an electrical connector that improves high frequencies by shortening the length of signal terminals.

To achieve the above object, the present invention provides an electrical connector, comprising: the insulation body is provided with an inserting portion, the inserting portion is inserted into the butt joint along an inserting direction, the inserting portion is provided with a yielding hole penetrating through the inserting portion, a tool enters a part of the corresponding signal terminal to be cut, the signal terminal forms a section after cutting, the contact portion of the signal terminal along the inserting direction is farther away from the inserting end of the inserting portion than the section, and the sections of the two signal terminals protrude out of the hole wall of the same yielding hole and are contained in the same yielding hole.

Furthermore, the distance between the contact parts of the two signal terminals accommodated in the same yielding hole and the cross section of the contact parts is less than or equal to 2.05 mm.

Further, the insertion direction is defined as the length direction of the insertion part, the contact parts of the terminals are arranged in two rows along the thickness direction of the insertion part, the contact parts of each row of terminals are arranged along the width direction of the insertion part, the contact parts of two signal terminals accommodated in the same abdicating hole are positioned in different rows, and the cross sections of the two signal terminals accommodated in the same abdicating hole are arranged along the width direction of the insertion part.

Furthermore, each terminal is also provided with a bending part which is closer to the plugging end of the plugging part than the contact part along the plugging direction, so that the section is not flush with the contact part along the thickness direction of the plugging part; and the bending parts of the two rows of terminals are bent oppositely, so that the distance between the contact parts of the two rows of terminals is greater than the distance between the sections of the two rows of terminals.

Furthermore, the plurality of terminals further comprise power supply terminals and ground terminals, and the bent parts of the power supply terminals in the same row of terminals are closer to the plugging end of the plugging part than the bent parts of the signal terminals along the plugging direction, and the bent parts of the signal terminals are flush with the bent parts of the ground terminals.

Furthermore, a connecting part is formed by extending the contact part back to the insertion direction, an extending part is formed by bending and extending the connecting part, and the width of the connecting part of the signal terminal is smaller than that of the contact part and the extending part.

Furthermore, the hole of stepping down with the grafting end of grafting portion separates, the terminal has a material portion that links and is used for connecting the material area, the terminal breaks back the material portion of linking breaks off with other parts of terminal, the one end protrusion of the material portion of linking of signal terminal gets into in the hole of stepping down in the pore wall of the hole of stepping down, it is equipped with along its width direction convex arch to link the material portion, the arch is held in the grafting portion.

Furthermore, the terminal is embedded and molded in the insulating body, a cutting trough is concavely arranged at the inserting end of the inserting part, two opposite sides of the cutting trough protrude and extend towards each other to form two convex blocks, the terminal is provided with a material connecting part for connecting a material belt, the material connecting part is positioned in the cutting trough and does not exceed the inserting end outwards, the two convex blocks clamp the two opposite sides of the material connecting part, and the material connecting part is flush with the two convex blocks along the thickness direction of the material connecting part.

The present invention also provides an electrical connector comprising: the insulation body is provided with an inserting part, the inserting part is inserted into the butt joint forwards, and the inserting part is provided with a yielding hole which vertically penetrates through the inserting part; the plurality of terminals are arranged in an upper row and a lower row, each terminal is provided with a contact part for contacting the butt-joint terminal of the butt-joint head, the contact part is positioned behind the abdicating hole, the contact part of the upper row of terminals is exposed on the upper surface of the plug-in part, and the contact part of the lower row of terminals is exposed on the lower surface of the plug-in part; the plurality of terminals comprise a grounding terminal and a signal terminal, and the signal terminal is broken into two parts in the yielding hole, so that the signal terminal is provided with a cross section exposed in the yielding hole, the front end of the grounding terminal forwards exceeds the cross section of the signal terminal, and the distance between the contact part of the signal terminal and the cross section of the signal terminal is less than or equal to 2.05 mm.

Furthermore, the sections of the upper and lower signal terminals are arranged at the left and right sides and are accommodated in the same abdicating hole.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the plug part of the insulating body is provided with the abdicating hole, and the cutting tool enters the abdicating hole to cut off the specific part of the signal terminal accommodated in the plug part, so that the distance between the section formed by the signal terminal and the contact part of the signal terminal is shortened (namely the signal terminal is shortened, and the sliding distance of the butt-joint terminal on the signal terminal is shortened), the reflection in signal transmission is reduced, and the high frequency of the signal transmission is improved. In addition, the sections of the two signal terminals protrude out of the hole wall of the same abdicating hole and are contained in the same abdicating hole, and are contained in the two abdicating holes relative to the sections of the two signal terminals (namely, the section of only one signal terminal in one abdicating hole), so that the coupling effect of signal butt joint can be enhanced, the DK value of a transmission medium is changed, large resonance is inhibited, and high frequency is further improved.

[ description of the drawings ]

FIG. 1 is a perspective view of an electrical connector of the present invention with signal terminals embedded in an insulative housing before the signal terminals are broken;

FIG. 2 is a top view of the signal terminals of the electrical connector of the present invention before being broken and embedded in the housing;

FIG. 3 is a cross-sectional view of a portion of the signal terminal of the electrical connector of the present invention cut away by a cutting tool;

fig. 4 is a top view of the electrical connector with signal terminals broken and the strip removed in accordance with the present invention;

fig. 5 is a perspective view of the finished product of the electrical connector of the present invention when the insulating body and the metal shell are assembled;

FIG. 6 is an enlarged view of a portion of FIG. 5;

FIG. 7 is a schematic view of the structure of the finished electrical connector and the mating terminal of the present invention;

fig. 8 is a cross-sectional view of the finished electrical connector of the present invention mated with a mating terminal.

Electrical connector 100	Insulating body 1	Plug-in part 11
			Abdication hole 111	Plug end 112	Material breaking groove 113
Bump 114	Terminal 2	Power supply terminal 2a
			Ground terminal 2b	Signal terminal	2c	Connecting part	21
Contact part 22	Bent part 23	Connecting part 24
			Extension 25	Section 26	Weld 27
Projection 28	Metal housing 3	Material belt 4
			Butt joint 200	Butt terminal M	Cutting tool	300

[ detailed description ] embodiments

For a better understanding of the objects, structure and features of the invention, reference should now be made to the drawings and detailed description of the invention.

As shown in fig. 1 to 8, for the embodiment of the present invention, to facilitate understanding of the drawings, the extending direction of the X axis is defined as a front-back direction (where the X axis is forward), the extending direction of the Y axis is defined as a left-right direction (where the Y axis is forward right), and the extending direction of the Z axis is defined as an up-down direction (where the Z axis is forward up), the electrical connector 100 includes: the terminal comprises an insulating body 1, a plurality of terminals 2 embedded and molded (insert-mold) in the insulating body 1, and a metal shell 3 covering the insulating body 1 and the terminals 2. The housing 1 has a plug portion 11, and the plug portion 11 is inserted into the docking head 200 along an insertion direction (i.e. the X-axis direction).

As shown in fig. 1, the insertion part 11 extends along an insertion direction (the length direction of the insertion part 11 is defined as the insertion direction), the insertion part 11 is provided with a plurality of relief holes 111 penetrating through the insertion part 11, the relief holes 111 are spaced from an insertion end 112 of the insertion part 11, the insertion end 112 is concavely provided with a plurality of material breaking grooves 113, and two opposite sides of each material breaking groove 113 are oppositely and convexly provided with two convex blocks 114 (as shown in fig. 4).

As shown in fig. 1, the plurality of terminals 2 include a power supply terminal 2a, a ground terminal 2b, and a plurality of signal terminals 2c, and the power supply terminal 2a has a larger width than the ground terminal 2b and the signal terminals 2 c. As shown in fig. 6 to 8, each terminal 2 is provided with a connecting portion 21 for connecting the strip 4, the connecting portion 21 is exposed from the material breaking groove 113, the two bumps 114 clamp opposite sides of the connecting portion 21, and the connecting portion 21 is flush with the two bumps 114 along the thickness direction (i.e., Z axis) of the connecting portion 21 (i.e., the upper surface of the connecting portion 21 is flush with the upper surfaces of the two bumps 114, and the lower surface of the connecting portion 21 is flush with the lower surfaces of the two bumps 114); each terminal 2 has a contact portion 22 (i.e. the portion of the terminal 2 that is finally contacted with the mating terminal M) for contacting the mating terminal M of the mating connector 200 (as shown in fig. 8), a bent portion 23 located in front of the contact portion 22, a connecting portion 24 extending backward from the contact portion 22, an extending portion 25 formed by bending and extending downward from the connecting portion 24, a soldering portion 27 formed by bending and extending backward from the extending portion 25, and the soldering portion 27 for soldering on a circuit board. The connecting portion 24 of the signal terminal 2c has a smaller width than the contact portion 22 thereof and the extension portion 25 thereof (for matching characteristic impedance).

As shown in fig. 3 and 4, the cutting tool 300 enters the abdicating hole 111 to cut off a part of the signal terminal 2c, the signal terminal 2c forms a section 26 after being broken in the abdicating hole 111 (at this time, the section 26 becomes the front end of the signal terminal 2 c), and the connecting portion 21 is disconnected from other parts of the signal terminal 2c, the rear end of the connecting portion 21 of the signal terminal 2c protrudes from the hole wall of the abdicating hole 111 and enters the abdicating hole 111, and the connecting portion 21 of the signal terminal 2c is provided with a protrusion 28 protruding along the width direction (i.e. Y axis); the contact portion 22 of the signal terminal 2c is farther from the mating end 112 of the mating portion 11 than the section 26 along the insertion direction, so that the distance between the contact portion 22 of the signal terminal 2c and the section 26 thereof is less than or equal to 2.05mm (the transmission rate of the signal can reach 96Gpbs only when the distance is less than or equal to 2.05 mm), and the sections 26 of the two signal terminals 2c protrude from the hole wall of the same abdicating hole 111 and are accommodated in the same abdicating hole 111 (the inside of one abdicating hole 111 is not limited to only the sections 26 of the two signal terminals 2 c). In this embodiment, there are 5 yielding holes 111, there is only one section 26 of the signal terminal 2c in the yielding holes 111 on both sides, and there are two sections 26 of the signal terminal 2c in the middle 3 yielding holes 111.

As shown in fig. 1 and 6, the contact portions 22 of the plurality of terminals 2 are arranged in two rows along the thickness direction (i.e., Z axis) of the socket (specifically, the contact portions 22 are arranged in an upper row and a lower row and are arranged opposite to each other in the upper-lower direction), the contact portions 22 of each row of terminals 2 are arranged along the width direction (i.e., Y axis) of the socket 11, the contact portions 22 of two signal terminals 2c accommodated in the same abdicating hole 111 are located in different rows, and the cross-sections 26 of the two signal terminals 2c accommodated in the same abdicating hole 111 are arranged along the width direction of the socket 11. In the present embodiment, the cross-sections 26 of the upper and lower signal terminals 2c accommodated in the same recess hole 111 are arranged in the left-right direction but are not equal in height (specifically, as shown in fig. 3, the cross-section 26 of the signal terminal 2c located at the upper row is higher than the cross-section 26 of the signal terminal 2c located at the lower row).

As shown in fig. 3, the bent portion 23 is closer to the mating end 112 of the mating part 111 than the contact portion 22 in the insertion direction, so that the section 26 is not flush with the contact portion 22 in the thickness direction of the mating part 111; and the bending parts 23 of the two rows of terminals are bent towards each other, so that the distance D1 between the contact parts 22 of the two rows of terminals is larger than the distance D2 between the sections 26 of the two rows of terminals; the bent portion 23 of the power terminal 2a is closer to the plugging end 112 of the plugging portion 111 than the bent portion 23 of the signal terminal 2c in the same row of terminals, and the bent portion 23 of the signal terminal 2c is flush with the bent portion 23 of the ground terminal 2b (this arrangement can increase the sliding distance between the power terminal and the mating terminal so as to make the contact more stable).

The manufacturing method of the electrical connector 100 comprises the following steps: firstly: the insulating body 1 and the plurality of terminals 2 are formed into a whole by injection molding; secondly, the method comprises the following steps: placing the cutting tool 300 into the yielding hole 111 of the insulating body 1 to break off the signal terminal 2c and remove a part of the signal terminal 2 c; then: cutting the connecting parts 21 of the terminals 2 and the material belt 4 to remove the material belt; finally, the insulating body 1 is fitted into the metal casing 3 from the rear to the front.

In summary, the electrical connector of the present invention has the following advantages:

1. since the insertion part 11 of the insulating body 1 is provided with the relief hole 111, the cutting tool 300 enters the relief hole 111 to cut off a specific part of the signal terminal 2c accommodated in the insertion part 11, so that the distance between the section 26 formed by the signal terminal 2c and the contact part 22 of the signal terminal 2c is shortened (corresponding to the fact that the signal terminal 2c is shortened, and the sliding distance of the butt terminal M on the signal terminal 2c is shortened), the reflection in signal transmission is reduced, and the high frequency is improved. In addition, the sections 26 of the two signal terminals 2c protrude from the hole wall of the same abdicating hole 111 and are contained in the same abdicating hole 111 (the abdicating hole of the insulation body of the invention is not limited to contain two signal terminals, and can be one or more than two signal terminals), and the sections 26 of the two signal terminals 2c are contained in the two abdicating holes 111 (that is, only one section of one signal terminal is contained in one abdicating hole), so that the coupling effect of signal butt joint can be enhanced, the DK value of the transmission medium is changed, large resonance is inhibited, and high frequency is further improved;

2. the bent part 23 of the power terminal 2a is improved to make the bent part 23 of the power terminal 2a closer to the plug terminal 112 than the bent parts 23 of other terminals, so as to increase the sliding distance between the power terminal 2a and the mating terminal M in the mating connector 200, thereby making the contact between the power terminal 2a and the mating terminal M more stable.

3. Two opposite sides of the material breaking groove 113 protrude towards the material breaking groove 114 to form two protruding blocks 114, the two protruding blocks 114 abut against two opposite sides of the material connecting portion 21, when the material tape 4 is removed, damage caused by applied acting force can be absorbed by the two protruding blocks 114, and the overall structure of the insulating body 1 cannot be affected. The material connecting part 21 is located in the material breaking groove 113, and the material connecting part 21 does not extend out of the insertion end 112, so that the butt joint effect of the electric connector and the butt connector is prevented from being influenced by the butt joint connector 200 scratched by the material connecting part 21.

4. The connecting material portion 21 of the signal terminal 2c is provided with a protrusion 28 protruding along the width direction (i.e. Y axis) thereof, so as to better hold the signal terminal 2c, so that the connecting material portion 21 is fixed on the insulating body 1 without being displaced and damaging the finished product after the signal terminal 2c is broken.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all technical changes that can be made by applying the present specification and the drawings are included in the scope of the present invention.

Claims

1. An electrical connector, comprising:

the insulation body is provided with an inserting portion, the inserting portion is inserted into the butt joint along an inserting direction, the inserting portion is provided with a yielding hole penetrating through the inserting portion, a tool enters a part of the corresponding signal terminal to be cut, the signal terminal forms a section after cutting, the contact portion of the signal terminal along the inserting direction is farther away from the inserting end of the inserting portion than the section, and the sections of the two signal terminals protrude out of the hole wall of the same yielding hole and are contained in the same yielding hole.

2. The electrical connector of claim 1, wherein the distance between the contact portions and the cross-sections of the two signal terminals received in the same recess hole is less than or equal to 2.05 mm.

3. The electrical connector of claim 1, wherein the insertion direction is defined as a length direction of the mating part, the contact portions of the plurality of terminals are arranged in two rows along a thickness direction of the mating part, the contact portions of each row of terminals are arranged along a width direction of the mating part, the contact portions of two signal terminals received in the same offset hole are located in different rows, and cross-sections of the two signal terminals received in the same offset hole are arranged along the width direction of the mating part.

4. The electrical connector of claim 3, wherein each terminal further has a bent portion, the bent portion being closer to the mating end of the mating part than the contact portion in the insertion direction, so that the cross-section is not flush with the contact portion in the thickness direction of the mating part; and the bending parts of the two rows of terminals are bent oppositely, so that the distance between the contact parts of the two rows of terminals is greater than the distance between the sections of the two rows of terminals.

5. The electrical connector of claim 4, wherein the plurality of terminals further include power terminals and ground terminals, the bent portions of the power terminals in the same row of terminals are closer to the mating end of the mating part than the bent portions of the signal terminals in the insertion direction, and the bent portions of the signal terminals are flush with the bent portions of the ground terminals.

6. The electrical connector of claim 1, wherein a connecting portion extends from the contact portion in a direction opposite to the insertion direction, and an extending portion is formed by bending and extending the connecting portion, and the connecting portion of the signal terminal has a width smaller than the width of the contact portion and the extending portion.

7. The electrical connector of claim 1, wherein the recess is spaced from the insertion end of the insertion portion, the terminal has a connection portion for connecting the strip, the connection portion is disconnected from other portions of the terminal after the terminal is broken, one end of the connection portion of the signal terminal protrudes from the hole wall of the recess and enters the recess, the connection portion is provided with a protrusion protruding along a width direction thereof, and the protrusion is fixed to the insertion portion.

8. The electrical connector of claim 1, wherein the terminals are embedded in the housing, the insertion ends of the insertion portions are recessed to form a slot, opposite sides of the slot protrude to form two protrusions, the terminals have a connecting portion for connecting the carrier tape, the connecting portion is located in the slot and does not protrude outward beyond the insertion ends, and the two protrusions clamp opposite sides of the connecting portion and are aligned with the two protrusions along a thickness direction of the connecting portion.

9. An electrical connector, comprising:

the insulation body is provided with an inserting part, the inserting part is inserted into the butt joint forwards, and the inserting part is provided with a yielding hole which vertically penetrates through the inserting part;

the plurality of terminals are arranged in an upper row and a lower row, each terminal is provided with a contact part for contacting the butt-joint terminal of the butt-joint head, the contact part is positioned behind the abdicating hole, the contact part of the upper row of terminals is exposed on the upper surface of the plug-in part, and the contact part of the lower row of terminals is exposed on the lower surface of the plug-in part; the plurality of terminals comprise a grounding terminal and a signal terminal, and the signal terminal is broken into two parts in the yielding hole, so that the signal terminal is provided with a cross section exposed in the yielding hole, the front end of the grounding terminal forwards exceeds the cross section of the signal terminal, and the distance between the contact part of the signal terminal and the cross section of the signal terminal is less than or equal to 2.05 mm.

10. The electrical connector of claim 9, wherein the upper and lower signal terminals have left and right cross-sections and are received in the same recess hole.