CN209963342U

CN209963342U - Multi-channel connector and assembly thereof

Info

Publication number: CN209963342U
Application number: CN201921024340.2U
Authority: CN
Inventors: 张顺华; 张超; 赵善记
Original assignee: Electrically Connected Technology Co Ltd
Current assignee: Electrically Connected Technology Co Ltd; Shenzhen Electric Connector Technology Co Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-01-17
Anticipated expiration: 2029-07-02

Abstract

A multi-channel connector and its assembly, including plug connector and socket connector, the plug connector includes the insulated body, lay a plurality of conductive terminals and cladding the shielding shell outside the insulated body in the insulated body, the socket connector includes the insulated base, accommodate a plurality of butt-jointed terminals and cladding the metal casing outside the insulated base in the insulated base, the metal casing has a buckling part that can be deformed elastically, there are buckling convex parts that provide the plug-in and pull-out force while blocking with the shielding shell and can form the butt-contacting convex part that the ground potential connects with the shielding shell through elastic deformation on it; the side of the shield case, the base and the side of the insulating body enclose a cut-out area, and the soldering part of the conductive terminal is arranged in the cut-out area and surrounded by a soldering area of the shield case which is continuously soldered with the circuit board. Thus, the high frequency characteristic is excellent when the connection of the ground potential is secured, and the high frequency transformer can be used in a high electromagnetic noise environment.

Description

Multi-channel connector and assembly thereof

Technical Field

The utility model relates to an electric connector field especially relates to a subsides are adorned and are realized signal multiplex's multichannel connector and sub-assembly on circuit substrate.

Background

Generally, an electrical connector is often mounted in a circuit substrate in an electronic information device to transmit signals (including multiple signals), and a multi-channel connector for transmitting multiple signals is popular because of its high space utilization. In recent years, as the frequency of transmission signals is higher and higher, the structure of the product is required to be more and more miniaturized, so that the reliability of the connector structure and the mutual plug-in matching of the male and female connectors is difficult to ensure, the high-frequency performance problem caused by mutual electromagnetic coupling between a plurality of signal PINs of the connector or between the connectors themselves is more and more prominent, and especially, the stability and effectiveness of the connection of the ground potential after the mating of the plug connector and the socket connector are difficult to ensure in a small space, therefore, a completely new design scheme is needed to overcome the above defects.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a reliable structure and excellent high-frequency characteristics's multichannel connector, its interference killing feature is strong, and the high frequency index is good; another object of the present invention is to provide an assembly including the multi-channel connector.

The technical scheme of the utility model be, provide a multichannel connector, including insulating base, accept in a plurality of butt joint terminals and cladding of insulating base in the outer metal casing of insulating base, a serial communication port, insulating base possesses the butt joint groove, the butt joint terminal is including exposing in the butt joint terminal contact site of butt joint groove and the butt joint terminal weld part that is connected to circuit substrate, metal casing is including surrounding the butt joint groove extends the external portion that forms along vertical direction, by the outside level of bottom edge of external portion extends the bottom plate portion that forms and by the portion is protected to the flat board that is the horizontality that the upper end edge of external portion buckles and forms, and the wherein at least one side edge that this flat board protected portion buckles downwards and extends the butt joint portion that forms an elastic deformation.

Preferably, at least one of the mating parts is provided with a mating convex part capable of engaging with a mating connector to provide a plugging force and a mating convex part capable of forming a ground potential connection with the mating connector through elastic deformation.

Preferably, the metal shell is a single piece formed by stretch forming, and the external connection portion is a fully-enclosed structure surrounding the abutting groove.

Preferably, the insulating base includes a base island portion and side wall portions which are distributed on both end sides of the base island portion and are wider than the width of the base island portion, the docking slot is disposed in the base island portion, the side wall portions and the external portion surround to form a slot cutting area, and the docking terminal soldering portion is disposed in the slot cutting area.

Preferably, each of the side wall portions has an upright wall portion extending upward, and the flat plate protector is wrapped around an upper surface of the upright wall portion.

The utility model also provides a multichannel connector assembly, including install on circuit substrate the plug connector with install on another circuit substrate can with the socket connector of plug connector interengagement, its characterized in that, the socket connector includes insulating base, accept in a plurality of butt joint terminals of insulating base and cladding in the metal casing outside the insulating base, the insulating base possesses the butt joint groove, the butt joint terminal is including exposing in the butt joint terminal contact site of butt joint groove and the butt joint terminal weld part of being connected to circuit substrate, the metal casing includes the external portion that surrounds the butt joint groove and extend along vertical direction and form, by the bottom plate portion that the bottom end edge of external portion extends towards outside level and forms; the plug connector comprises an insulating body, a plurality of conductive terminals arranged on the insulating body and a shielding shell which is coated outside the insulating body and arranged around the conductive terminals, wherein the insulating body comprises a base body, a middle island part protruding upwards from the base body and side end parts distributed at two end sides of the base body and arranged wider than the width of the base body; the conductive terminal comprises a conductive terminal fixing part fixed on the base body part, a conductive terminal abutting part extending from the conductive terminal fixing part and arranged in the island part, and a conductive terminal welding part extending from the other end of the conductive terminal fixing part; the shielding shell comprises a hollow flat panel part and a ring side part formed by upwards extending the edge of the hollow part of the panel part; the ring side part, the base body part and the side end part surround to form a cut-out area, and the conductive terminal welding part is arranged in the cut-out area.

Preferably, the number of the cutout areas is two, and the cutout areas are respectively arranged on two sides of the island portion.

Preferably, the shielding case is an integral body formed by stretch forming, the ring side portion is a fully-enclosed structure arranged around the conductive terminal, and the flat-plate-shaped panel portion has a continuous and uninterrupted welding area welded to the circuit board, the welding area surrounding the outer side of the ring side portion.

Preferably, the insulating body further includes a reinforcing wall extending upward from the side end portion, and the reinforcing wall is a straight wall extending in the width direction.

Preferably, the ring side portion is bent downwards towards the cut-out area to extend a folding arm, and the inner surface of the folding arm is tightly attached to the inner surface of the ring side portion.

Preferably, the reinforcing wall is further provided with an L-shaped bent wall at a corner, and the folding arm can be limited from two sides.

The utility model has the advantages that: compared with the traditional design, the metal shell of the multi-channel connector is provided with the buckling part capable of elastic deformation, and the buckling part is provided with a pair of buckling convex parts which are used for being mutually plugged with the opposite connector to provide plugging force, and is also additionally provided with a pair of contact convex parts which can form grounding potential connection with the opposite connector through elastic deformation, so that the stability and the effectiveness of the grounding potential connection of the plug connector and the socket connector after butt joint are reliably ensured; additionally, furtherly, the utility model discloses an be provided with in the insulator of plug connector with enclose between the shield shell and form the cutout area, and hold the conductive terminal welding part and establish wherein, make conductive terminal only have air medium in this regional part, obtained more superior high frequency parameter, simultaneously, conductive terminal's welding part freely scatters in the cutout area and can not pile up when the soldering is connected to circuit substrate, avoids taking place short circuit bad scheduling problem and direct observation easily. In addition, because the conductive terminals are all limited in the shielding shell, the welding area which is continuously and uninterruptedly welded with the circuit substrate by the panel part is completely isolated from the outside, thereby having excellent electromagnetic noise resistance.

Drawings

Fig. 1 is a perspective view illustrating a connection state between a plug connector and a receptacle connector of a multi-channel connector assembly according to a preferred embodiment of the present invention.

Fig. 2 is a perspective view illustrating a separated state of the plug connector and the receptacle connector of fig. 1.

Fig. 3 is a perspective view of the plug connector.

Fig. 4 is a perspective view of the plug connector from another perspective.

Fig. 5 is an exploded perspective view of the plug connector.

Fig. 6 is a perspective view of the receptacle connector.

Fig. 7 is a perspective view of the receptacle connector from another perspective.

Fig. 8 is an exploded perspective view of the receptacle connector.

Fig. 9 is a perspective view of a plug connector of a multi-channel connector assembly according to another preferred embodiment of the present invention.

Fig. 10 is an exploded perspective view of the plug connector of fig. 9.

Fig. 11 is an enlarged cross-sectional view of the plug connector and the receptacle connector of the present invention after they are connected and mounted on a circuit board.

Description of the symbols:

multi-channel connector assembly 100 plug connector 00 receptacle connector 10

Insulating body 01 conductive terminal 02 shielding shell 03

Insulating base 11 and metal shell 13 of butt-joint terminal 12

Island portion 011a side end 012 of base portion 011

Conductive terminal fixing part 021 conductive terminal abutting part 022 conductive terminal welding part 023

Panel portion 031 ring side portion 032 welding region 031a

Reinforcing wall 013 cutout region 01a abuts groove 111a

Side wall 112 and standing wall 113 of island 111

The butt terminal contact part 121 butt-joints the terminal welding part 122

Plate protection part 132 of external part 131 of metal shell 13

Notch 032a of bottom plate portion 131a notch 11a

Butt-fastener portion 1321 plug connector 00 'ring side portion 032'

Section 01a 'folded arm 0321 insulation body 01'

Butt-convex portion 1321a and catch convex portion 1321b L curved wall 013'

Conductive terminal touch part 022 'conductive terminal welding part 023'

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Throughout this document, unless otherwise specified, it is specified that the side of the mating face of a multichannel connector (plug connector or receptacle connector) with a counterpart connector (receptacle connector or plug connector) is an upper side, the side of the mounting face of the multichannel connector mounted on a printed circuit board (see fig. 11) is a lower side, the "longitudinal direction" herein means the extending direction of the longest side of the multichannel connector, and corresponding to this "longitudinal direction", the "width direction" perpendicular thereto, and the engaging and disengaging direction of the plug connector with the receptacle connector is the "height direction".

Referring to fig. 1 to 11, a multi-channel connector assembly 100 according to the present invention includes a plug connector 00 mounted on a circuit substrate 1 (refer to fig. 11) and a socket connector 10 mounted on another circuit substrate 2 (refer to fig. 11) and capable of engaging with the plug connector 00 for signal transmission between different circuit substrates in multiple channels. The plug connector 00 comprises an insulating body 01, a plurality of conductive terminals 02 arranged on the insulating body 01 along the length direction, and a shielding shell 03 covering the insulating body 01 and arranged around the conductive terminals 02. The receptacle connector 10 includes an insulating base 11, a plurality of mating terminals 12 accommodated in the insulating base 11, and a metal shell 13 covering the insulating base 11.

As shown in fig. 1 to 8, in a preferred embodiment of the present invention, the insulating body 01 of the plug connector is made of an insulating material, such as engineering plastic like LCP, and is substantially rectangular parallelepiped, and includes a base portion 011, a middle island portion 011a protruding upward from the base portion 011, and side end portions 012 distributed at both ends of the base portion 011 and wider than the width of the base portion 011, the side end portions 012 are preferably the same in thickness as the base portion 011, and in order to obtain a good high-frequency index, the base portion 011 and the side end portions 012 occupy as little space as possible in a thin-walled form, in this embodiment, the middle island portion 011a is a straight long-strip-shaped vertical wall, and are arranged in two rows in the width direction. The conductive terminal 02 includes a conductive terminal fixing portion 021 fixed to the base portion 011, a conductive terminal abutting portion 022 extended from the conductive terminal fixing portion 021 and disposed in the island portion 011a, and a conductive terminal soldering portion 02 extended from the other end of the conductive terminal fixing portion 021, and the conductive terminal soldering portion 023 is connected to the signal potential pad 1c of the circuit substrate 1 by soldering (refer to fig. 11). The shield shell 03 includes a hollow flat plate-like panel portion 031 and a ring-side portion 032 formed by extending upward from an edge of the hollow portion of the panel portion 031, the panel portion 031 being used for solder-connecting the shield shell 03 to the ground potential pad 1b of the circuit board 1 (see fig. 11), and the ring-side portion 032 being used for abutting against the metal shell 13 of the receptacle connector. This shielding shell 03 adopts stretch forming's mode to form an organic whole to guarantee higher structural strength, the ring lateral part 032 of shielding shell 03 is for encircleing the totally closed structure who lays around the conductive terminal 02, and shielding shell 03 panel portion 031 possesses and centers on ring lateral part 032 outside a week continuous incessant and circuit substrate welded weld zone 031a to after circuit substrate 1 is installed to plug connector 00, make conductive terminal 02 arrange completely in shielding shell 03's inside (refer to fig. 11), and isolate completely with other components and parts on the circuit substrate and external environment, realize fine electromagnetism noise-resistant effect. In order to ensure a higher frequency of use and a better high frequency parameter index of the connector, the insulating body 02 should be hollowed as much as possible, in order to form more air medium around the region where the solder portion 023 of the key conductive terminal affecting the continuity of impedance is located, a cut-out area 01a only containing air medium is surrounded by the ring side portion 032, the base portion 011 and the side end portion 012, the cut-out area 01a is preferably two at this place, opposite to both sides of the island portion 011a, and the conductive terminal 023 is entirely disposed in the cut-out area 01a (refer to fig. 11), so as to obtain a small Voltage Standing Wave Ratio (VSWR). In addition, the cut-out area is provided to allow the solder land to diffuse along the soldering portion 023 of the conductive terminal, thereby avoiding accumulation and reducing high frequency index. The side end 012 of the insulating housing 02 extends upward to form a reinforcing wall 013 for providing a support structure for guiding when the shield shell 03 is assembled to the insulating housing 02, and further enhancing the overall structural strength of the multi-channel connector, as shown in fig. 5, in this embodiment, the reinforcing wall 013 is a straight wall extending in the width direction, and preferably has a certain width, and the upper end of the side has a guide angle for guiding. The shielding shell 03 is engaged and fixed with the reinforcing wall 013 of the insulating body 02 by a convex-concave structure provided on the ring side 032 thereof. The height of the reinforcing wall 013 is not higher than that of the ring side 032, so that damage during plugging and unplugging is avoided.

The insulating base 11 of the receptacle connector 10 includes a base island portion 111 having a mating groove 111a and side wall portions 112 extending from both ends of the base island portion 111 and wider than the base island portion 111, and a standing wall portion 113 is provided on each of the side wall portions 112 so as to extend upward. The butt terminal 12 is a metal member electrically connected to the conductive terminal 02, and includes a butt terminal contact portion 121 exposed to the butt groove 111a and a butt terminal welding portion 122 connected to a signal potential pad 2c (as shown in fig. 11) of the circuit substrate 2, and the metal housing 13 is an integral member formed by stretch forming a metal plate, and includes an external portion 131, and the external portion 131 is a fully closed structure circumferentially butted to the outer side of the ring side portion 032, and is electrically connected to the ring side portion 032, and has high electromagnetic noise resistance. The flat plate protection portion 132 covering the upper surface of the standing wall portion 113 is connected to the upper portion of the external connection portion 131, so that the structural strength of the external connection portion 131 is improved, and the standing wall portion 113 can be protected from being damaged when the receptacle connector 10 and the plug connector 00 are inserted into each other. The lower end of the external connection portion 131 is further connected to a bottom plate portion 131a, and the bottom surface thereof is connected to the ground potential pad 2b of the circuit board 2 by soldering in a continuous uninterrupted soldering region, so that the butt terminal 12 is completely isolated from the outside, and the electromagnetic noise resistance is further improved (see fig. 11).

It is noted that, similar to the plug connector 00, in order to optimize the high frequency specification of the receptacle connector 10, the base island portion 111, the sidewall portion 112 and the external connecting portion 131 surround to form a notch area 11a, and the mating terminal soldering portion 122 is disposed in the notch area 11a, so as to achieve the effect similar to the notch area 01a of the plug connector 00.

Further, in order to achieve a good mutual engagement effect between the plug connector 00 and the receptacle connector 10, a plurality of notches 032a are disposed on an outer side surface of the ring side portion 032 of the plug connector 00; at least one side edge of the plate guard portion 132 of the receptacle connector 10 is bent downward to form a pair of buckling portions 1321, which are four in number in the present embodiment, and are respectively located on the front, rear, left, and right side edges, and each buckling portion 1321 is provided with at least one buckling protrusion 1321 b. The buckling portion 1321 elastically deforms and abuts against the ring side portion 032, and the engagement between the notch 032a and the corresponding abutting convex portion 1321b provides a plug force when the receptacle connector 10 and a counterpart connector (here, the plug connector 00) are engaged with each other in a multi-point contact manner, so as to prevent the mutual disengagement. It is worth noting that the utility model discloses a still be provided with on the part 1321 of detaining to the portion 1321a of touching, when plug connector 00 and socket connector 10 when the butt joint, conflict portion 1321a passively with certain elastic force the surface of the ring side portion 032 of plug connector to even can guarantee still that the connector combination's is always effective with the connected state of earth potential under the condition of butt joint convex part 1321b and notch 032a electrical disconnection, guarantee ground connection's stability and validity, provide a complete effectual ground reference level for signal transmission, realize high electromagnetism noise immunity.

In another embodiment of the present invention as shown in fig. 9 to 10, in this embodiment, the ring side portion 032 'of the plug connector 00' extending along the length direction bends downward toward the cut-out area 01a 'to extend a folding arm 0321, and the inner surface of the folding arm 0321 is tightly attached to the inner surface of the ring side portion 032', so that the strength of the side portion 032 along the length direction with a larger force bearing surface is greatly enhanced when the connector is plugged into or pulled out from the cut-out area 01a ', and the area where the cut-out area 01 a' is located is occupied to a minimum extent. The insulating body 01 ' of the plug connector 00 is optimized on the basis of the insulating body 01 of the above preferred embodiment, and specifically, the structure of the reinforcing wall, which is different from a straight wall, is changed into an L-shaped curved wall 013 ' which is further arranged at the corner, so that the insulating body 01 ' has higher structural strength compared with the original reinforcing wall 013, the folding arms 0321 can be limited from two sides, and the structural strength and the stability in the plugging and unplugging process are ensured.

The high frequency simulation software HFSS simulation shows that the rf performance of the plug connector 00 with the cutout area 01a and the receptacle connector 10 with the cutout area 11a after being connected to each other is very good, and a Voltage Standing Wave Ratio (VSWR) as low as 1.08 can be obtained at 10 GHz; meanwhile, the conductive terminals 02 and the butt terminals 12 are all limited in the shielding shell 03 and the metal housing 13, and continuous and uninterrupted welding areas are respectively welded by the panel portion 031 and the bottom plate portion 131a and the corresponding circuit substrates, so that the electromagnetic isolation from the outside is complete, the electromagnetic noise resistance is excellent, and the actual gain of the far field 3d can reach-68.76 dB at 10 GHz.

To sum up, the utility model discloses the connection of the earthing potential of multichannel connector and composite member structure of structure is reliable and high frequency characteristic is good, and its interference killing feature is strong, can be used in high electromagnetic noise's application scenario.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a multichannel connector, includes the insulator foot, accept in a plurality of butt joint terminals of insulator foot and cladding in the outer metal casing of insulator foot, its characterized in that, the insulator foot possesses the butt joint groove, the butt joint terminal is including exposing the butt joint terminal contact site of butt joint groove and the butt joint terminal weld part that is connected to circuit substrate, metal casing is including surrounding the butt joint groove extends the external portion that forms along vertical direction, by the outside level of bottom edge of external portion extends the bottom plate portion that forms and by the dull and stereotyped portion of protecting that is the horizontality that forms is buckled of the upper end edge of external portion, and wherein at least one side edge that this dull and stereotyped portion of protecting is buckled downwards and is extended the butt joint portion that forms an elastic deformation.

2. The multi-channel connector according to claim 1, wherein at least one of the mating parts is provided with a mating protrusion for engaging with a mating connector to provide a plugging force and a mating protrusion for establishing a ground potential connection with the mating connector by elastic deformation.

3. The multi-channel connector of claim 2, wherein the metal shell is a unitary piece formed by stretch forming, and the male connection portion is a fully enclosed structure surrounding the mating groove.

4. The multi-channel connector according to any one of claims 1 to 3, wherein the insulating base includes a base island portion and side wall portions that are distributed on both end sides of the base island portion and are disposed wider than a width of the base island portion, the mating groove is provided in the base island portion, the side wall portions, and the external portions surround to form a notch region, and the mating terminal solder is provided in the notch region.

5. The multi-channel connector as claimed in claim 4, wherein each side wall portion is provided with an upright wall portion extending upward, and the flat plate protector is wrapped on an upper surface of the upright wall portion.

6. A multi-channel connector assembly comprises a plug connector mounted on a circuit substrate and a socket connector mounted on another circuit substrate and capable of being mutually jointed with the plug connector, and is characterized in that the socket connector comprises an insulating base, a plurality of butt-joint terminals accommodated in the insulating base and a metal shell coated outside the insulating base, the insulating base is provided with a butt-joint groove, the butt-joint terminals comprise butt-joint terminal contact parts exposed in the butt-joint groove and butt-joint terminal welding parts connected to the circuit substrate, and the metal shell comprises an external connection part formed by surrounding the butt-joint groove and extending along the vertical direction and a bottom plate part formed by horizontally extending outwards from the bottom end edge of the external connection part; the plug connector comprises an insulating body, a plurality of conductive terminals arranged on the insulating body and a shielding shell which is coated outside the insulating body and arranged around the conductive terminals, wherein the insulating body comprises a base body, a middle island part protruding upwards from the base body and side end parts distributed at two end sides of the base body and arranged wider than the width of the base body; the conductive terminal comprises a conductive terminal fixing part fixed on the base body part, a conductive terminal abutting part extending from the conductive terminal fixing part and arranged in the island part, and a conductive terminal welding part extending from the other end of the conductive terminal fixing part; the shielding shell comprises a hollow flat panel part and a ring side part formed by upwards extending the edge of the hollow part of the panel part; the ring side part, the base body part and the side end part surround to form a cut-out area, and the conductive terminal welding part is arranged in the cut-out area.

7. The multi-channel connector of claim 6, wherein the cutout areas are two and are respectively disposed on opposite sides of the center island portion.

8. The multi-channel connector of claim 6 or 7, wherein the shield shell is a unitary member formed by stretch forming, the ring side portion is a fully enclosed structure that extends around the periphery of the conductive terminal, and the flat plate-like panel portion has a continuous, uninterrupted solder area to the circuit substrate around the outside of the ring side portion.

9. The multi-channel connector as claimed in claim 6 or 7, wherein the insulating body further comprises a reinforcing wall extending upward from the side end portion, the reinforcing wall being a straight wall of a straight line shape extending in the width direction.

10. The multi-channel connector as claimed in claim 9, wherein the ring side is bent downward into the cutout area to form a bent arm, and an inner surface of the bent arm is closely attached to an inner surface of the ring side.

11. The multi-channel connector of claim 10, wherein the reinforcing wall is further provided with L-shaped bent walls at corners to restrain the bent arms from both sides.