CN205621919U - Electronic connector - Google Patents

Abstract

An electronic connector comprises an insulator, a plurality of conductive terminals and a grounding piece, wherein the insulator is provided with an insulator body and a tongue part, and the tongue part extends from one side of the insulator body; the plurality of conductive terminals comprise a plurality of grounding terminals and a plurality of signal terminals which are staggered, and the plurality of grounding terminals and the plurality of signal terminals are respectively provided with a contact part, a tail end part and a main body part connected with the contact part and the tail end part; the grounding piece comprises a conductive body and a plurality of extending parts extending from the conductive body, wherein at least one side edge of each extending part is provided with a restraining part respectively; the main body part of the grounding terminal is stacked with each extending part and is contacted with the restraining part on the side edge, the grounding piece and the main body part are fixed in the insulating body, the contact parts are arranged on the surface of the tongue plate respectively, and the tail end part extends out of the insulating body. The grounding terminal is connected by the grounding piece, and the extending part and the restraining part provide a larger area to be contacted with the grounding terminal, so that the problem of crosstalk interference is effectively reduced.

Description

electronic connector

technical field

The utility model relates to an electronic connector, in particular to an electronic connector capable of transmitting high-frequency signals.

Background technique

Due to the vigorous development of information technology, in order to provide different transmission requirements, various transmission specifications have been developed, from the early SCSI (Small Computer System Interface) to the current SAS (Serial Attached SCSI, Serial SCSI), for high-speed information access Serial technology solves the bottleneck of traditional parallel technology, provides faster signal transmission, and SAS can support and be compatible with SATA (Serial Advanced Technology Attachment) devices, which has the advantage of being widely applicable.

Under the demand of high-speed information transmission and connector size reduction, the arrangement of multiple terminals tends to be tight, and the frequency of signal transmission tends to be high-frequency transmission, so the connector is prone to signal interference when transmitting data. Because the distance between the signal terminals is too close, the signal terminals will generate capacitive and inductive coupling with each other during the process of sending high-frequency signals, and there will be problems of cross talk interference and noise. This affects the speed and accuracy of signal transmission.

In order to overcome the problem of crosstalk interference, a ground terminal is provided between the two high-frequency signal terminals in the prior art to block the interference of the two signal terminals to each other. The ground terminal can couple the signal terminals to generate The capacitance and inductance noise of the ground can be grounded to achieve the effect of reducing signal interference. However, there is still room for improvement in this technical means to solve crosstalk interference.

Aiming at the problem of improving crosstalk interference, US 2013/0149882 published patent application discloses an electrical connector. As shown in FIG. 11 , the electrical connector has an insulating body A, and multiple A conductive terminal B and a ground piece C. The insulating body A includes a base A1 and a tongue A2 extending from the base A1, the conductive terminal B has a plurality of ground terminals B1 and a plurality of signal terminals (not disclosed in the figure), and the ground terminals B1 respectively include A contact part B11, a welding part B13 and a holding part B12 connecting the contact part B11 and the welding part B13, the contact part B11 is arranged on the plane of the tongue plate A2, the holding part B12 is arranged in the base part A1, the The soldering portions B13 respectively extend out of the base portion A1 and can be electrically connected to a circuit board (not disclosed in the figure). The arrangement sequence of the conductive terminals B includes a signal terminal (not disclosed in the figure) between at least two ground terminals B1. The ground sheet C has a plurality of elastic arms C1 (Finger) and a beam portion C2, and the elastic arms C1 are extended from the beam portion C2 and are electrically connected, wherein the elastic arms C1 contact the holder in the ground terminal B1 The part B12 is arranged in the insulating body A.

In the aforementioned technology, the ground terminal B1 is electrically connected as a whole through the spring arm C1 of the ground piece C, so that the noise generated by the high-frequency transmission signal of the signal terminal (not disclosed in the figure) is grounded, The crosstalk interference problem of the electrical connector can be reduced.

However, in the prior art, the ground terminal B1 is connected to the ground piece C using a corresponding elastic arm C1, but there is only a small area between the holding portion B12 of the ground terminal B1 and the elastic arm C1 Therefore, when the ground terminal B1 transmits the interference noise ground with the ground piece C, the contact area is small, and the transmission rate of the noise ground is slow, resulting in the electrical connector still having the problem of high-frequency signal interference ; and the alignment yield of the elastic arm C1 and the ground terminal B1 in the assembly process, and the bonding condition of the elastic arm C1 in contact with the ground terminal B1 will be one of the factors affecting poor noise grounding.

Since this prior art cannot provide a better method for improving crosstalk interference to meet the actual needs of the industry, it is necessary to provide an improved technical solution to overcome the predicament.

Utility model content

The purpose of the present utility model is to provide an electronic connector, which can transmit high-frequency signals, and the connector has a grounding piece for multiple signal terminals to transmit high-frequency signals, which can effectively reduce the problem of crosstalk interference.

The purpose of this utility model is to provide an electronic connector, the grounding piece has a pair of binding parts and an extension part, the extension part and the binding part can be used to fix and increase the contact area with a plurality of grounding terminals, effectively Interfering noise is quickly grounded to improve the transmission yield and speed of the electronic connector.

To achieve the above purpose, the utility model provides an electronic connector, which has an insulator, a plurality of conductive terminals and a grounding element. The insulator has an insulating body and a tongue, and the tongue extends from one side of the insulating body; the plurality of conductive terminals include a plurality of ground terminals and a plurality of signal terminals arranged in a staggered manner, and the plurality of ground terminals and the plurality of signal terminals are arranged alternately. The plurality of signal terminals respectively have a contact portion, a tail end portion and a main body portion connecting the contact portion and the tail end portion. The grounding piece has a conductive body and a plurality of extension parts, the extension parts extend from the conductive body, each extension part has a binding part on at least one side, the main part of each ground terminal is at least partly connected to each The extension part is stacked and in contact with the binding part on the side, and the grounding piece and the main body part of the ground terminal are fixed in the insulating body, the tail ends respectively extend out of the insulating body, and the contact The parts are respectively arranged on a plurality of surfaces of the tongue.

According to an embodiment of the present invention, each extension portion has a constraint portion, and the extension portion and the constraint portion respectively interfere with the main body portion of each corresponding ground terminal.

According to an embodiment of the present invention, each extension portion has two opposite binding portions, and the extension portion and the binding portions respectively interfere with the main body portion of the corresponding ground terminal.

According to an embodiment of the present invention, the extension part extends from the conductive body toward the tongue.

According to an embodiment of the present invention, the insulating body has a plurality of slots, and the conductive terminals and the grounding member are fixed in the insulating body through the slots.

According to an embodiment of the present invention, the surface of the tongue portion has a plurality of terminal grooves for respectively accommodating the contact portions of the conductive terminals.

According to an embodiment of the present invention, the grounding element is located between two rows of terminals.

According to an embodiment of the present invention, the conductive body is closer to the tail end of the conductive terminal than the extension portion.

According to an embodiment of the present invention, the arrangement of conductive terminals includes at least one signal terminal located between two ground terminals.

According to an embodiment of the present utility model, wherein the constraining portions of the grounding member apply force to each of the grounding terminals, so that the constraining portions of the grounding member approach the grounding terminals.

The utility model utilizes a grounding piece to electrically connect the first grounding terminal as a whole, and the extension part and the constraining part provide a larger area for contact with the first grounding terminal, thereby providing a better electrical connection effect , effectively reducing the problem of crosstalk interference, so that the electronic connector has a good effect in transmitting high-frequency signals.

In order to further understand the features, characteristics and technical contents of the present utility model, please refer to the following detailed description and accompanying drawings of the present utility model, and the accompanying drawings of the specification are provided for reference and illustration only, and are not intended to limit the present utility model.

Description of drawings

Fig. 1 is a three-dimensional appearance view of an embodiment of the utility model.

Fig. 2 is an exploded view of the utility model embodiment.

Fig. 3 is an exploded view of another viewing angle of the embodiment of the present invention.

Fig. 4 is a partial structural diagram of the embodiment of the utility model.

Fig. 5 is a partial structural diagram of the embodiment of the utility model.

Fig. 6 is a partial structural diagram of the embodiment of the utility model.

Fig. 7 is a partial structural diagram of the embodiment of the utility model.

Fig. 8 is a partial structural diagram of the embodiment of the utility model.

Fig. 9 is a partial structural diagram of the embodiment of the utility model.

Fig. 10 is a partial structural diagram of an embodiment of the utility model.

FIG. 11 is a drawing of the utility model prior art US Patent Publication No. 2013/0149882.

Wherein, the reference signs are explained as follows:

A Insulation body A1 Base

A2 Tongue plate B Conductive terminal

B1 Ground terminal B11 Contact part

B12 Holding part B13 Welding part

C Ground lug C1 Elastic arm

C2 beam 1 electrical connector

2 Insulator 21 Insulation body

22 Tongue 221 Terminal slot

222 raised portion 223 first surface

224 Second surface 225 Third surface

23 Guide 231 Docking groove

24 Protruding structure 241 Convex part

25 Slot 3 Conductive terminal

31 First terminal 311 First ground terminal

3111 First Contact 31111 First Extension

3112 First body part 3113 First tail end part

312 First signal terminal 32 Second terminal

33 Tertiary terminal 4 Ground

41 Conductive body 42 Extension

43 Department of Restraint

detailed description

Please refer to Figs. 1-3, the electronic connector 1 according to the embodiment of the present invention is a device capable of transmitting high-frequency signals. The electronic connector 1 is mainly composed of an insulator 2, a plurality of conductive terminals 3 and a grounding member 4. The electronic connector 1 can be fixed on a circuit board (not disclosed), and can be connected with a pair of connectors ( Figure unpublished) docking.

In the disclosure of preferred embodiments of the present utility model, please refer to FIG. 2, FIG. 3 and FIG. One side extends, and guide parts 23 are respectively formed on both sides of the insulating body 21 and extend in the same direction as the tongue 22, and the guide parts 23 respectively have a connection groove 231, and are located on opposite sides of the tongue 22; The main body 21 extends two protruding structures 24 oppositely at the guide part 23, and each protruding structure 24 is provided with a protruding part 241. is a cylindrical structure. The other side of the insulating body 21 extending from the tongue 22 is provided with a plurality of slots 25 , and the slots 25 are arranged in two rows and pass through the insulating body 21 . The opposite surfaces of the tongue portion 22 are respectively set as a first surface 223 and a second surface 224, the first surface 223 has a raised portion 222, the raised portion 222 has a third surface 225, the first The surface 223 , the second surface 224 and the third surface 225 respectively have a plurality of terminal slots 221 , and the terminal slots 221 communicate with the corresponding slots 25 on the insulating body 21 respectively.

In the disclosure of preferred embodiments of the present utility model, please refer to FIG. 2, FIG. 6 and FIG. A plurality of second terminals 32 on the second surface 224 and a plurality of third terminals 33 arranged on the third surface 225, the first terminals 31 include a plurality of first ground terminals 311 and a plurality of arranged on the first surface 223 a first signal terminal 312. The structures of the first terminal 31, the second terminal 32 and the third terminal 33 are the same, so the first ground terminal 311 is used as an example for illustration below, and the first ground terminal 311 has a first contact portion 3111 and a first tail portion respectively. 3113 and a first body part 3112 connecting the first contact part 3111 and the first tail end part 3113, the first ground terminal 311 can be inserted into the insulator 2 through the slot hole 25 on the insulator body 21 respectively, the first The contact portions 3111 are respectively arranged in the terminal slots 221 on the tongue portion 22. The front ends of the first contact portions 3111 respectively have a first extension portion 31111, and the first extension portions 31111 are respectively smaller than the thickness of the corresponding first contact portion 3111 and A gap is formed, and the first extensions 31111 are respectively inserted in the front ends of the terminal slots 221 to fix the first grounding terminal 311, so as to prevent the first grounding terminal 311 from being squeezed by external force when mating with the mating connector (not shown in the figure). , to warp the first contact portion 3111; each side of the terminal groove 221 is provided with a slope to limit the width of the front end of the terminal groove 211, and can match the width of the front end of the first contact portion 3111, so that the first When the ground terminal 311 is inserted, the wider structure can stop on the slope to avoid excessive insertion of the terminal; the first main body 3112 of the first ground terminal 311 is fixed in the slot 25 of the insulating body 21, and the first tail end 3113 extends out of the insulating body 21 along the first main body part 3112, and the first tail end part 3113 can be welded on the circuit board (not disclosed in the figure), and the welding method can adopt surface mount technology (SMT, Surface Mount Technology ), the conductive terminal 3 can be fixed in the insulator 2 by inserting, or the conductive terminal 3 can be molded on the insulator 2 by insert molding.

Please refer to FIG. 5 and FIG. 6, the first terminal 31 is formed by the first ground terminal 311 and the first signal terminal 312 arranged alternately, and its arrangement is a differential signal terminal pair composed of two positive and negative first signal terminals 312 and Composed of first ground terminals 311, a differential signal terminal pair is formed between two adjacent first ground terminals 311, and the two differential signal terminal pairs are separated by a first ground terminal 311, and the arrangement is as follows: Terminal-signal terminal-signal terminal-ground terminal (G-S-S-G) arrangement as a unit, this arrangement can effectively transfer the high-frequency differential signal (differential signal) transmitted in the first signal terminal 312 through the first ground terminal 311 signal) generated interference grounding, so that other conductive terminals 3 can reduce the interference between signals; the second terminal 32 located on the second surface 224 has the same structure and arrangement as the first terminal 31, so I won't go into details here.

In the disclosure of preferred embodiments of the present utility model, please refer to FIG. 2 and FIG. 3 , the grounding member 4 includes a conductive body 41 and a plurality of extensions 42 extending from the conductive body 41 to the tongue 22, each The extension parts 42 respectively have at least one binding part 43; please refer to FIG. 7, FIG. 9 and FIG. Bending and perpendicular to the extension part 42, the restraint part 43 can be set on one of the two longer sides of the extension part 42; In the accommodating space formed with each extension portion 42, each first main body portion 3112 is stacked with each extension portion 42 of the ground member 4 and interferes with each restraint portion 43 on the side of the extension portion 42, so that The first main body part 3112 is electrically connected to the extension part 42 and the binding part 43, and each binding part 43 of the grounding element 4 exerts force on each of the first grounding terminals 311, so that each binding part 43 of the grounding element 4 As each of the first ground terminals 311 approaches each other, the restraint portion 43 is in closer contact with the first ground terminal 311, and the grounding effect is more stable; the interference between the extension portion 42, the restraint portion 43 and the first main body portion 3112 can be reduced. Increase the contact area between the grounding member 4 and the first grounding terminal 311, improve the conductive efficiency of the grounding, so that the first grounding terminal 311 is electrically connected as a whole through the grounding member 4, and the grounding member 4 and the first main body 3112 Inserted together in the slot 25 of the insulating body 21 and fixed in the insulating body 21, the insulating body 21 covers the grounding piece 4, which can prevent the grounding piece 4 from being damaged by external force; the position of the conductive body 41 is relatively The extension portion 42 is close to the first tail end portion 3113 . In order to prevent the first signal terminal 312 from conducting with the conductive body 41 , the first terminal 31 is designed to bypass the conductive body 41 to avoid short circuit.

Please refer to Fig. 7 and Fig. 8, in the second embodiment, each extension portion 42 of the grounding member 4 has two binding portions 43 opposite to each other, the binding portions 43 are bent and perpendicular to the extension portion 42, and the binding portions 43 are respectively set On the longer opposite sides of the extending portion 42; each of the first main body portions 3112 of the first grounding terminal 311 is respectively disposed in the accommodating space formed by the binding portion 43 and each of the corresponding extending portions 42, each of the first A main body part 3112 is respectively stacked with each of the extension parts 42 of the grounding member 4 and interferes with each of the restraint parts 43 on both sides, so that the first main part 3112 is electrically connected with the extension part 42 and the restraint part 43, and the ground The component 4 can fix the first main body 3112 between the two binding parts 43 by exerting a clamping force on each of the two binding parts 43, and the binding parts 43 of the grounding part 4 respectively correspond to the corresponding first grounding terminals 311. Force is applied to make the restraint part 43 approach the first ground terminal 311, and the restraint part 43 is in closer contact with the first ground terminal 311, and the grounding effect is more stable; besides the restraint part 43 has a fixing effect, Also increase the contact area between the first grounding terminal 311 and the grounding member 4, which can improve the effect of grounding, so that the first grounding terminal 311 is electrically connected as one through the grounding member 4, and the grounding member 4 and the first main body part 3112 are inserted together in the slot 25 and fixed in the insulating body 21. The insulating body 21 covers the grounding part 4, which can prevent the grounding part 4 from being damaged by external force; the position of the conductive body 41 is closer to the second extension part 42. A tail end 3113, in order to prevent the first signal terminal 312 from conducting with the conductive body 41, the first terminal 31 is designed to bypass the conductive body 41 to avoid the occurrence of a short circuit; the grounding member 4 is fixed to the insulating In the body 21, its position is just between the first terminal 31 and the second terminal 32, and the grounding member 4 is in contact with the first grounding terminal 311, which can provide a shielding function between the first terminal 31 and the second terminal 32 , to reduce the electromagnetic interference between the two.

In addition to being electrically connected to the first ground terminal 311 by overlapping with the extension part 42, the first ground terminal 311 is also in contact with the restraint part 43, and the extension part 42 and the restraint part 43 reach a larger area of contact with the first ground terminal 311. , to produce a relatively excellent electrical connection, so that the noise of crosstalk interference can be grounded more quickly; in addition, the constrained portion 43 on both sides of the extension portion 42 is relatively close to the signal terminal of the differential pair, so the constrained portion 43 can be connected to the signal terminal of the differential pair. The shorter distance absorbs interference noise, and reduces the capacitive and inductive coupling to other conductive terminals 3 when the differential pair is transmitted to the signal terminal, so as to reduce crosstalk interference, improve the accuracy of high-frequency data transmission, and increase the electronic connection The efficiency of device 1 is used.

Compared with the prior art, the utility model utilizes the grounding member 4 to electrically connect the first grounding terminal 311 as a whole, and the extension part 42 and the constraint part 43 provide a larger area to contact the first grounding terminal 311, providing Better electrical connection effect, so the interference signal generated by the differential pair signal terminal is shielded and grounded, effectively reducing the problem of crosstalk interference, so that the electronic connector has a good effect in transmitting high-frequency signals.

From the above detailed description, those skilled in the art can understand that the utility model can indeed achieve the above-mentioned purpose, and has actually complied with the provisions of the patent law, so a patent application is filed. And above-mentioned person, only preferred embodiment of the present utility model, should not limit the scope of the present utility model implementation with this; Changes and modifications should still fall within the scope covered by the utility model patent.

Claims (10)

1. an electric power connector, it is characterised in that described electric power connector comprises:

One insulator, comprises an insulating body and a tongue, and this tongue extends from this insulating body side；

Multiple conducting terminals, comprise multiple ground terminal and multiple signal terminal is staggered, the plurality of ground terminal and institute State multiple signal terminal be respectively provided with a contact site, a tail end and connect a main part of this contact site and this tail end；With And

One earthing member, comprises a conductive body and extends multiple extension, each extension at least side from this conductive body While be respectively provided with one to restrain portion；

Respectively this main part of this ground terminal at least partly stacks with respectively this extension and contacts with this contained portion of side, This earthing member is fixed in this insulating body with the described main part of described ground terminal, and it is exhausted that described tail end extends this respectively Edge body, described contact site is respectively arranged on multiple surfaces of this tongue.

2. electric power connector as claimed in claim 1, it is characterised in that each extension is respectively provided with and restrains portion, and this prolongs Extending portion and this contained portion this main part with corresponding respectively this ground terminal respectively interferes with each other.

3. electric power connector as claimed in claim 1, it is characterised in that each extension is respectively provided with relative two and restrains portion, This extension and described contained portion this main part with corresponding respectively this ground terminal respectively interferes with each other.

4. electric power connector as claimed in claim 1, it is characterised in that described extension by this conductive body towards tongue direction Extend.

5. electric power connector as claimed in claim 1, it is characterised in that this insulating body has multiple slotted eye, described conduction Terminal and this earthing member are fixed in this insulator by described slotted eye.

6. electric power connector as claimed in claim 1, it is characterised in that the described surface of this tongue has multiple terminal groove can House respectively this contact site of described conducting terminal respectively.

7. electric power connector as claimed in claim 1, it is characterised in that this earthing member is between two row's terminals.

8. electric power connector as claimed in claim 1, it is characterised in that lead described in the more described extension of this conductive body is close This tail end of electric terminal.

9. electric power connector as claimed in claim 1, it is characterised in that the arrangement of described conducting terminal includes at least one signal end Son is between two ground terminals.

10. electric power connector as claimed in claim 1, it is characterised in that the contained portion of described earthing member is respectively to respectively this connects Ground terminal force, makes respectively this contained portion convergence mutual to described ground terminal of this earthing member.