CN211829297U

CN211829297U - Electrical connector

Info

Publication number: CN211829297U
Application number: CN202020203504.4U
Authority: CN
Inventors: 张文昌; 赵从林
Original assignee: Lotes Guangzhou Co Ltd
Current assignee: Lotes Guangzhou Co Ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-10-30
Anticipated expiration: 2030-02-24

Abstract

The utility model discloses an electric connector, include: the insulation body is provided with a butt joint surface and a slot formed by backward sinking from the butt joint surface, the insulation body is provided with at least one accommodating hole which is positioned on one side of the slot and is communicated with the slot, the accommodating hole forms two first edges and two second edges which are oppositely spaced at the slot wall of the slot, and two inclined edges which are correspondingly connected between the first edges and the second edges, the second edges are close to the butt joint surface compared with the first edges, and the distance between the two second edges is smaller than the distance between the two first edges; the at least one conductive terminal is correspondingly accommodated in the at least one accommodating hole and is provided with a fixing part, an elastic arm formed by extending from the fixing part, a contact part formed by extending from the elastic arm and a head part formed by extending from the contact part, the elastic arm is accommodated between the two first edges, the head part is accommodated between the two second edges, and the contact part protrudes into the slot between the two oblique edges and is used for contacting the butt-joint piece. So set up, can prevent that contact portion is crooked, guarantee that the signal of telecommunication transmits steadily.

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 capable of preventing the contact portion of a conductive terminal from being inclined.

[ background of the invention ]

With the development of electronic products toward miniaturization and high performance, the size of the electronic products is reduced, and at the same time, the electrical connector should meet the requirement of stable structure.

The conventional card edge connector includes an insulating body, the insulating body is provided with a plurality of receiving slots, and a plurality of conductive terminals are fixed in the receiving slots in a one-to-one correspondence manner, each conductive terminal has a main body portion for fixing the conductive terminal to the insulating body, the main body portion extends upward to form a contact portion for contacting an electronic card, and a soldering portion extends downward from the main body portion for soldering the conductive terminal to a circuit board. When the electronic card is inserted, a larger gap exists between the contact part and the groove wall of the accommodating groove, and the contact part is easy to shake and turn over when being subjected to the external force of the electronic card, so that the contact part deviates from the corresponding golden finger on the electronic card, and the stability of signal transmission is influenced.

Therefore, in view of the above problems, a new electrical connector needs to be designed to solve the above drawbacks.

[ Utility model ] content

To solve the problems encountered in the background art, the present invention provides an electrical connector capable of preventing the contact portion of a conductive terminal from being inclined so as to stabilize signal transmission.

In order to achieve the above object, the utility model adopts the following technical means:

an electrical connector for mating with a mating member, comprising: the insulating body is provided with at least one accommodating hole positioned on one side of the slot, the accommodating hole is communicated with the slot, the accommodating hole is formed in the slot wall of the slot and is provided with two first edges which are oppositely spaced, two second edges which are oppositely spaced and two inclined edges which are oppositely spaced, the inclined edges are connected between the corresponding first edges and the corresponding second edges, the second edges are arranged close to the butting face compared with the first edges, and the distance between the two second edges is smaller than the distance between the two first edges; at least one conductive terminal, correspond accept in at least one the accepting hole, conductive terminal has a fixed part, certainly a bullet arm that the fixed part extends the formation, certainly a contact site that the bullet arm extends the formation and certainly a head that the contact site extends the formation, it accepts in two to play the arm between two first limit, the head accept in two between the second limit, the contact site is two protruding the stretching into between the hypotenuse the slot for electric connection the butt joint piece.

Further, the two first edges spaced apart from each other are arranged in parallel with each other, the two second edges spaced apart from each other are arranged in parallel with each other, and the first edges and the second edges are arranged in parallel with each other.

Further, the length of the first side is greater than the length of the second side.

Further, the width of the elastic arm is respectively larger than the width of the contact part and the width of the head part.

Further, the gap between the head and the second edge is smaller than the gap between the elastic arm and the first edge.

Furthermore, the insulating body includes a plurality of the accepting hole, and is a plurality of the accepting hole includes a plurality of signal holes and a plurality of ground connection hole, the electric connector includes a plurality of conductive terminal and an insulating plug member, and is a plurality of conductive terminal is including accepting in a plurality of signal terminal in signal hole and accepting in a plurality of ground connection terminal in ground connection hole, insulating plug member is equipped with a basal portion and certainly a plurality of adjustment portions that the basal portion is protruding to be stretched out and form, and is a plurality of the adjustment portion one-to-one accept in a plurality of signal hole.

Further, the width of the adjusting portion is larger than the distance between the two second sides and smaller than the distance between the two first sides.

Furthermore, the slot is provided with a slot bottom surface formed in the concave direction, and the convex extending tail end of the adjusting part is arranged close to the butt joint surface compared with the slot bottom surface.

Furthermore, the hole wall of the signal hole, which is far away from one side of the slot, protrudes towards the slot to form a protruding part, and the second edge is closer to the butt joint surface than the protruding part.

Further, the insulating plug member is installed on the insulating body from a side away from the abutting surface and towards the direction of the abutting surface, the elastic arm of the signal terminal is located between the protruding portion and the adjusting portion, and gaps are reserved between the protruding portion and the adjusting portion and the elastic arm respectively.

Further, the electric connector further includes two shielding pieces, two the shielding piece cover in insulator's both sides, insulator includes a plurality ofly the accepting hole is a plurality of the accepting hole includes a plurality of signal holes and a plurality of ground connection hole, the electric connector includes a plurality of conductive terminal, and is a plurality of conductive terminal is including accepting in a plurality of signal terminals in signal hole with accept in a plurality of ground connection terminal in ground connection hole, ground connection hole towards keeping away from the direction of slot is run through insulator, the shielding piece is equipped with the court ground connection terminal extends and the butt arm of butt.

Compared with the prior art, the utility model discloses electric connector has following beneficial effect:

through optimizing the structure of the accommodating holes, each accommodating hole is provided with two first edges which are oppositely spaced, two second edges which are oppositely spaced and two bevel edges which are oppositely spaced, the bevel edges are connected between the first edges and the second edges up and down, wherein the elastic arm of the conductive terminal is accommodated between the two first edges, the head of the conductive terminal is accommodated between the two second edges, the distance between the two second edges is smaller than the distance between the two first edges, the head is limited by the second edges, so that the phenomenon that the contact part of the conductive terminal is inclined is prevented, the contact part of the conductive terminal corresponds to the bevel edges and protrudes into the slot, and the distance between the contact part and the two bevel edges is increased, the contact site with during the contact of butt joint spare, prevent the atress deformation in-process the contact site with the hypotenuse is interfered and is produced the plastic bits, is favorable to the contact site with electric connection is stabilized to the butt joint spare, ensures that the signal of telecommunication transmits steadily.

[ description of the drawings ]

Fig. 1 is an exploded perspective view of the electrical connector of the present invention;

FIG. 2 is a perspective assembly view of FIG. 1;

FIG. 3 is a partial perspective view of FIG. 2 taken along line A-A;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is an enlarged view of c in FIG. 4;

FIG. 6 is a schematic view of the hidden conductive terminal of FIG. 5;

FIG. 7 is a schematic view of FIG. 5 showing only conductive terminals;

fig. 8 is a sectional view taken along line B-B of fig. 2.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

socket 12 of mating face 11 of insulating body 1 of electric connector 100

Bottom surface 121 of groove for receiving signal hole 13a and ground hole 13b of hole 13

First side 131 second side 132 hypotenuse 133 projection 14

Insulating plug 2 base 21 adjusting part 22 conductive terminal 3

Fixing part 31 and elastic arm 32 of signal terminal 3a and ground terminal 3b

Contact portion 33 head 34 shield piece 4 flat plate portion 41

The contact arm 42 has a longitudinal direction X, a transverse direction Y, and a vertical direction Z

[ detailed description ] embodiments

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

As shown in fig. 1 and fig. 2, in order to provide a convenient description for the specific structure of the electrical connector 100, the electrical connector 100 is electrically connected to a circuit board (not shown) for inserting a mating member (not shown), the electrical connector 100 is defined with a longitudinal direction X, a transverse direction Y and an up-down direction Z, the longitudinal direction X, the transverse direction Y and the up-down direction Z are perpendicular to each other, and the electrical connector 100 is installed on the circuit board downward. In the present embodiment, the electrical connector 100 is a card edge connector, and the mating member is an electronic card.

As shown in fig. 1, the electrical connector 100 includes an insulating body 1, an insulating plug 2 mounted on the insulating body 1 from bottom to top, a plurality of conductive terminals 3 disposed on the insulating body 1, and two shielding plates 4 covering the outside of the insulating body 1.

As shown in fig. 1, fig. 3 and fig. 8, the insulation body 1 has a butt-joint surface 11, the butt-joint surface 11 is located at the top end of the insulation body 1, the insulation body 1 has a slot 12 formed by sinking downward from the butt-joint surface 11, the slot 12 has a slot bottom surface 121 formed in the direction of sinking thereof, that is, the slot bottom surface 121 is located below the butt-joint surface 11 and horizontally disposed, the slot 12 is used for inserting the butt-joint member downward, the insulation body 1 is further provided with a plurality of receiving holes 13 extending in the vertical direction Z, the plurality of receiving holes 13 are arranged in two rows in the transverse direction Y at two sides of the slot 12, the plurality of receiving holes 13 include a plurality of signal holes 13a and a plurality of ground holes 13b, and in the transverse direction Y, the signal holes 13a and the ground holes 13b are respectively communicated with the slot 12. The grounding hole 13b penetrates through the insulation body 1 in the transverse direction Y toward the direction away from the slot 12, the hole wall of the signal hole 13a on the side away from the slot 12 protrudes toward the slot 12 to form a protruding portion 14, and an inclined surface which extends toward the slot 12 and inclines upward is arranged on the side of the protruding portion 14 away from the abutting surface 11.

As shown in fig. 4, 6 and 8, each of the receiving holes 13 forms two first sides 131 spaced apart from each other, two second sides 132 spaced apart from each other, and two inclined sides 133 spaced apart from each other on the groove wall of the slot 12, the inclined sides 133 are connected between the corresponding first sides 131 and the corresponding second sides 132 in the up-down direction Z, and the second sides 132 are disposed closer to the abutting surface 11 than the first sides 131. The two first sides 131 spaced apart from each other are parallel to each other, the two second sides 132 spaced apart from each other are parallel to each other, the first sides 131 and the second sides 132 are parallel to each other, and the first sides 131 and the second sides 132 are perpendicular to the abutting surface 11. In the up-down direction Z, the length of the first side 131 is greater than the length of the second side 132. In the longitudinal direction X, a distance between the two second sides 132 is smaller than a distance between the two first sides 131. The second edge 132 is closer to the abutting surface 11 than the protruding portion 14 in the up-down direction Z.

As shown in fig. 1, 6 and 8, the insulating plug 2 is mounted on the insulating body 1 from bottom to top, the insulating plug 2 is provided with a base 21 and a plurality of adjusting portions 22 formed by protruding from the base 21, in the vertical direction Z, the base 21 is located below the slot bottom 121 and completely located outside the receiving hole 13, and the plurality of adjusting portions 22 are formed by protruding from the upper surface of the base 21 and are received in the plurality of signal holes 13a in a one-to-one correspondence manner. The upper end of the adjusting portion 22 is provided with an inclined surface extending from bottom to top and inclining towards the slot 12, and the upper end of the adjusting portion 22 is arranged closer to the butt joint surface 11 than the slot bottom surface 121. In the longitudinal direction X, the width of the adjusting portion 22 is greater than the distance between the two second sides 132 and less than the distance between the two first sides 131.

As shown in fig. 1 and 4, the plurality of conductive terminals 3 include a plurality of signal terminals 3a and a plurality of ground terminals 3b, the plurality of signal terminals 3a are accommodated in the plurality of signal holes 13a in a one-to-one correspondence, and the plurality of ground terminals 3b are accommodated in the plurality of ground holes 13b in a one-to-one correspondence.

As shown in fig. 7 and 8, each of the conductive terminals 3 has a fixing portion 31, a spring arm 32 extending upward from the fixing portion 31, a contact portion 33 extending upward from the spring arm 32, and a head portion 34 extending upward from the contact portion 33, wherein the contact portion 33 is located between the spring arm 32 and the head portion 34. In the transverse direction Y, the adjustment portion 22 abuts against the fixing portion 31 of the signal terminal 3a so that the insulating plug 2 does not fall downward with respect to the insulating body 1.

As shown in fig. 4, 5 and 8, the elastic arm 32 is accommodated between two first edges 131, the head 34 is accommodated between two second edges 132, so as to ensure the accurate alignment degree of the conductive terminal 3, and the contact portion 33 protrudes into the slot 12 between the two inclined edges 133, so that when the contact portion 33 contacts the mating member, the contact portion 33 does not interfere with the hole wall of the accommodating hole 13 during the stress deformation process, thereby preventing generation of plastic chips, and causing the contact portion 33 and the electrical connection of the mating member to be unstable.

As shown in fig. 5 and 7, in the transverse direction Y, the width of the elastic arm 32 is greater than the width of the contact portion 33 and the width of the head portion 34, respectively, and the gap D1 between the head portion 34 and the second edge 132 is smaller than the gap D2 between the elastic arm 32 and the first edge 131.

As shown in fig. 8, the elastic arm 32 of the signal terminal 3a is located between the inclined plane of the protruding portion 14 and the inclined plane of the adjusting portion 22, and gaps are respectively reserved between the protruding portion 14 and the adjusting portion 22 and the elastic arm 32, so as to satisfy matching impedance, improve dielectric constant around the signal terminal 3a, concentrate electric field when transmitting high frequency signal, achieve the purpose of enhancing electric field, make high frequency performance develop toward capacitive reactance, reduce loss of high frequency signal and improve crosstalk phenomenon, and provide stable environment for transmitting high frequency signal.

As shown in fig. 1, fig. 2 and fig. 8, two shielding plates 4 cover two sides of the insulating body 1, each shielding plate 4 has a flat plate portion 41, the flat plate portion 41 extends along the longitudinal direction and shields the corresponding receiving hole 13, in this embodiment, two abutting arms 42 extending from the flat plate portion 41 are provided corresponding to each grounding hole 13b of the shielding plate 4, the two abutting arms 42 extend downward in an inclined manner and abut against the grounding terminals 3b one by one, so as to form a plurality of grounding return paths, which is beneficial to preventing electromagnetic interference.

To sum up, the utility model discloses an electric connector has following beneficial effect:

(1) by optimizing the structure of the receiving holes 13, each receiving hole 13 is provided with two first sides 131 spaced apart from each other, two second sides 132 spaced apart from each other, and two inclined sides 133 spaced apart from each other, the inclined sides 133 being connected between the first sides 131 and the second sides 132 up and down, wherein the resilient arm 32 of the conductive terminal 3 is received between the two first sides 131, the head 34 of the conductive terminal 3 is received between the two second sides 132, and the distance between the two second sides 132 is smaller than the distance between the two first sides 131, so that the contact portion 33 of the conductive terminal 3 is prevented from being inclined by limiting the head 34 by the second sides 132, and the contact portion 33 of the conductive terminal 3 corresponds to the inclined sides 133 and protrudes into the slot 12, so set up, on lengthwise direction X, increased contact site 33 and two the distance between hypotenuse 133, contact site 33 with when the butt joint piece contacts, prevent the atress deformation in-process contact site 33 with hypotenuse 133 interferes and produces the plastic bits, is favorable to contact site 33 with the stable ground electrical connection of butt joint piece ensures that the electric signal transmits steadily.

(2) In the longitudinal direction, the width of the elastic arm 32 is respectively greater than the width of the contact part 33 and the width of the head part 34, so that the width of the contact part 33 is small and the contact part is not easy to contact with a gold finger which is not corresponding to the butting piece; in addition, the gap D1 between the head 34 and the second edge 132 is smaller than the gap D2 between the elastic arm 32 and the first edge 131, so that the elastic arm 32 is elastically deformed in the receiving hole 13 by force, the hole wall of the receiving hole 13 is not easily scratched, and a small swing space is ensured to be provided for the head 34, thereby effectively preventing the contact portion 33 of the conductive terminal 3 from being inclined, and enabling the contact portion 33 to stably contact with a golden finger on the mating part.

(3) The elastic arm 32 of the signal terminal 3a is located between the protruding portion 14 and the adjusting portion 22, gaps are respectively reserved between the protruding portion 14 and the adjusting portion 22 and the elastic arm 32, and the elastic arm 32 of the signal terminal 3a is located between the protruding portion 14 and the adjusting portion 22, so that matching impedance is met, dielectric constant around the signal terminal 3a is improved, an electric field is concentrated when a high-frequency signal is transmitted, the purpose of enhancing the electric field is achieved, high-frequency performance is developed towards capacitive reactance, loss of the high-frequency signal is reduced, crosstalk is improved, and a stable environment is provided for transmitting the high-frequency signal.

(4) Two the shield plate 4 cover in insulator 1's both sides, the shield plate 4 be equipped with towards ground terminal 3b extends and the butt arm 42 forms a plurality of ground connection backward flow routes, not only can prevent electromagnetic interference, is favorable to the signal to transmit steadily, and reduces ground terminal 3 b's electrical length is favorable to electric connector 100's high frequency demand.

(5) The width of the adjusting part 22 is smaller than the distance between the two first sides 131, so that when the insulating plug 2 is assembled to the insulating body 1, an excessive interference force is not generated, and excessive deformation of the insulating body 1 is avoided; the width of the adjustment portion 22 is larger than the distance between the two second sides 132, so that the adjustment portion 22 is disposed at a position below the contact portion 33 to effectively adjust the high frequency.

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 the equivalent technical changes applying the present specification and the drawings are included in the scope of the present invention.

Claims

1. An electrical connector for mating with a mating member, comprising:

the insulating body is provided with at least one accommodating hole positioned on one side of the slot, the accommodating hole is communicated with the slot, the accommodating hole is formed in the slot wall of the slot and is provided with two first edges which are oppositely spaced, two second edges which are oppositely spaced and two inclined edges which are oppositely spaced, the inclined edges are connected between the corresponding first edges and the corresponding second edges, the second edges are arranged close to the butting face compared with the first edges, and the distance between the two second edges is smaller than the distance between the two first edges;

at least one conductive terminal, correspond accept in at least one the accepting hole, conductive terminal has a fixed part, certainly a bullet arm that the fixed part extends the formation, certainly a contact site that the bullet arm extends the formation and certainly a head that the contact site extends the formation, it accepts in two to play the arm between two first limit, the head accept in two between the second limit, the contact site is two protruding the stretching into between the hypotenuse the slot for electric connection the butt joint piece.

2. The electrical connector of claim 1, wherein: the two first edges which are oppositely spaced are arranged in parallel, the two second edges which are oppositely spaced are arranged in parallel, and the first edges and the second edges are parallel.

3. The electrical connector of claim 1, wherein: the length of the first side is greater than the length of the second side.

4. The electrical connector of claim 1, wherein: the width of the elastic arm is respectively larger than the width of the contact part and the width of the head part.

5. The electrical connector of claim 4, wherein: the clearance between the head and the second edge is smaller than the clearance between the elastic arm and the first edge.

6. The electrical connector of claim 1, wherein: the insulating body includes a plurality of the accepting hole, it is a plurality of the accepting hole includes a plurality of signal holes and a plurality of ground connection hole, the electric connector includes a plurality ofly conductive terminal and an insulating plug member, it is a plurality of conductive terminal is including acceding in a plurality of signal terminal in signal hole and acceding in a plurality of ground connection terminal in ground connection hole, insulating plug member is equipped with a basal portion and from the protruding a plurality of adjustment portions that form of basal portion, it is a plurality of the adjustment portion one-to-one accept in a plurality of the signal hole.

7. The electrical connector of claim 6, wherein: the width of the adjusting part is larger than the distance between the two second sides and smaller than the distance between the two first sides.

8. The electrical connector of claim 6, wherein: the slot is provided with a slot bottom surface formed in the concave direction of the slot, and the convex extending tail end of the adjusting part is arranged close to the butt joint surface compared with the slot bottom surface.

9. The electrical connector of claim 6, wherein: the hole wall of the signal hole, which is far away from one side of the slot, protrudes towards the slot to form a protruding part, and the second edge is closer to the butt joint surface than the protruding part.

10. The electrical connector of claim 9, wherein: the insulating plug part is installed in the insulating body from keeping away from one side of butt joint face and towards the direction of butt joint face, signal terminal the bullet arm is located the bulge with between the adjustment portion, just the bulge with the adjustment portion respectively with all there is the clearance between the bullet arm.

11. The electrical connector of claim 1, wherein: further include two shielding pieces, two the shielding piece cover in insulator's both sides, insulator includes a plurality ofly the accepting hole, it is a plurality of the accepting hole includes a plurality of signal holes and a plurality of ground connection hole, electric connector includes a plurality of conductive terminal, it is a plurality of conductive terminal is including accepting in a plurality of signal terminals in signal hole with accept in a plurality of ground connection terminal in ground connection hole, ground connection hole is towards keeping away from the direction of slot is run through insulator, the shielding piece is equipped with the court ground connection terminal extends and the butt arm of butt.