CN109546390B - Electrical connector - Google Patents

Electrical connector Download PDF

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Publication number
CN109546390B
CN109546390B CN201811465863.0A CN201811465863A CN109546390B CN 109546390 B CN109546390 B CN 109546390B CN 201811465863 A CN201811465863 A CN 201811465863A CN 109546390 B CN109546390 B CN 109546390B
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CN
China
Prior art keywords
slot
abutting
electrical connector
arm
differential signal
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Active
Application number
CN201811465863.0A
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Chinese (zh)
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CN109546390A (en
Inventor
殷腾飞
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Lotes Guangzhou Co Ltd
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Lotes Guangzhou Co Ltd
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Priority to CN201811465863.0A priority Critical patent/CN109546390B/en
Publication of CN109546390A publication Critical patent/CN109546390A/en
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Publication of CN109546390B publication Critical patent/CN109546390B/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/73—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
    • H01R12/735—Printed circuits including an angle between each other
    • H01R12/737—Printed circuits being substantially perpendicular to each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • H01R13/6582—Shield structure with resilient means for engaging mating connector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • H01R13/6585—Shielding material individually surrounding or interposed between mutually spaced contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6594—Specific features or arrangements of connection of shield to conductive members the shield being mounted on a PCB and connected to conductive members

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

The invention discloses an electric connector, which is used for connecting a butting element to a circuit board, and is characterized by comprising the following components: an insulating body having a mating surface, a slot being recessed downward from the mating surface, the slot being for insertion of a mating component; at least two pairs of differential signal terminals are adjacently arranged on the insulating body, each differential signal terminal is provided with a contact arm, and a plurality of contact arms are positioned on the same side of the slot and electrically connected with the butting element in a conductive mode; a shielding shell is provided with a main body part, the main body part shields the outer side surface of the insulating body, a guide pin extends from one side of the main body part along the vertical direction, two abutting arms extend from the other side of the main body part along the vertical direction, the guide pin is in conductive connection with the circuit board, the two abutting arms are positioned between the two pairs of differential signal terminals and are exposed out of the slot to be in electrical conductive connection with the abutting element, the high-frequency transmission rate and the shielding effect of the electric connector are ensured, meanwhile, the material cost is saved, and the manufacturing process is simplified.

Description

Electrical connector
Technical Field
The present invention relates to an electrical connector, and more particularly, to a socket type electrical connector.
Background
With the development of science and technology, the electronic product industry is rapidly developed, manufacturers of electronic products are more and more, and the requirements on the electronic products are higher and higher, so that how to improve the performance of the electronic products and reduce the production cost of the electronic products is particularly important.
The conventional slot type electric connector is arranged on a circuit board and generally comprises an insulating body, wherein the insulating body is provided with a slot for inserting a butt joint element to realize butt joint, a plurality of differential signal terminals and grounding terminals are accommodated in the insulating body and welded on the circuit board, and a metal shell covers the insulating body; in order to improve the above-mentioned drawbacks, for example, chinese patent CN200820033111.2 discloses that a shielding shell is provided with a spring arm protruding into a mating slot, the spring arm has a contact point for contacting with a mating connector, meanwhile, in order to fix the shielding shell on the insulating body, the shielding shell is further provided with a bending part which extends into one side of the butt-joint groove and is clamped and matched with the insulating body, however, because the elastic arm and the bending part both extend into one side of the butt-joint groove, the positions of the differential signal terminal and the grounding terminal arranged on the insulating body are occupied, so that there is no space on the side of the mating slots for the differential signal terminals and ground terminals, i.e., an entire row of differential signal terminals and ground terminals must be removed, it is apparent that, the design reduces the number of differential signal terminals, which can cause the transmission rate of the electric connector to be greatly reduced, and the transmission of the high-frequency performance of the electric connector cannot be satisfied.
Therefore, there is a need for a new electrical connector to overcome the above problems.
Disclosure of Invention
The invention aims to provide an electric connector which can improve high-frequency characteristics and save cost.
In order to achieve the purpose, the invention adopts the following technical scheme: an electrical connector for electrically connecting a mating component to a circuit board, comprising: an insulating body having a mating surface, a slot being recessed downward from the mating surface, the slot being for the mating component to be inserted; at least two pairs of differential signal terminals are adjacently arranged on the insulating body, each differential signal terminal is provided with a contact arm, and the contact arms are positioned on the same side of the slot and electrically connected with the butting element in a conductive mode; a shielding shell having a main body part, the main body part shields the outer side surface of the insulating body, a guide pin extends from one side of the main body part along the up-down direction, two abutting arms extend from the other side of the main body part along the up-down direction, the guide pin is in the conductive connection with the circuit board, and the two abutting arms are located between the two pairs of differential signal terminals and exposed from the slot and the electrical conductive connection of the abutting elements.
Furthermore, the butt joint arm upwards extends from the upper side of the main body part and partially enters the slot, and the guide pin downwards extends from the lower side of the main body part and protrudes out of the lower end of the insulating body.
Further, an extending portion extends upwards from the main body portion, the extending portion is torn to form the abutting arm and a through groove is formed in the periphery of the abutting arm, the upper end of the abutting arm is a free end, the lower end of the abutting arm is integrally connected with the lower edge of the through groove, and the lower edge of the through groove is the upper edge of the main body portion.
Furthermore, the shielding shell is provided with a covering part, the covering part is formed by bending from the extending part towards the slot, at least part of the covering part covers the butt joint surface, and the upper end of the slot is exposed out of the covering part.
Furthermore, each differential signal terminal is provided with a first base part, the contact arm extends upwards from the first base part, the first base part extends downwards to form a conductive part, the conductive part is electrically connected with the circuit board in a conductive manner, and the first base part is closer to the slot relative to the main body part.
Furthermore, the abutting arm is provided with a second base, one end of the second base is connected with the main body part, the second base is far away from the slot relative to the first base, an abutting part extends upwards from the second base, and the abutting part enters the slot and is electrically connected with the abutting element in a conductive mode.
Further, the insulating body is provided with a plurality of first receiving holes and a plurality of second receiving holes on one side of the slot, each of the first receiving holes and each of the second receiving holes are communicated with the slot, the plurality of first receiving holes and the plurality of second receiving holes are arranged in a row along the longitudinal direction, the differential signal terminals and the abutting arms are respectively and correspondingly received in the first receiving holes and the second receiving holes, each of the contact arms is provided with a contact portion, each of the abutting arms is provided with an abutting portion, and the contact portions and the abutting portions are electrically connected with the abutting elements in a guiding manner and are aligned in the longitudinal direction.
Furthermore, a plurality of first receiving holes and second receiving holes are formed in two opposite sides of the slot, a plurality of pairs of differential signal terminals are respectively arranged on two opposite sides of the slot and are arranged in two rows, the two rows of differential signal terminals are correspondingly received in the first receiving holes in the two sides of the slot, shielding shells are arranged on two opposite sides of the slot, and each shielding shell is provided with the abutting arm which is correspondingly received in the second receiving hole.
Further, the abutting arm at one side of the slot is aligned with the contact arm at the opposite side of the slot in a transverse direction perpendicular to the lengthwise direction.
Furthermore, the abutting part extends upwards to form an abutting part, and the abutting part abuts against the inner surface of one side, close to the slot, of the second accommodating hole.
Further, a plurality of first receiving holes and a plurality of second receiving holes are formed in two opposite sides of the slot, a plurality of pairs of differential signal terminals are respectively arranged on two opposite sides of the slot and are arranged in two rows, the two rows of differential signal terminals are correspondingly received in the plurality of first receiving holes in the two sides of the slot, and the shielding shell integrally extends to form a plurality of abutting arms which are respectively located on the two opposite sides of the slot and are correspondingly received in the plurality of second receiving holes.
Further, the electrical connector of claim 1, wherein: a fixed block is convexly arranged on the outer side face of the insulating body, a fixed groove is formed between the fixed block and the outer side face, the abutting arm extends towards the inside of the slot, a abutting piece is convexly arranged on the shielding shell towards the direction far away from the extending direction of the abutting arm, and the abutting piece abuts against the inner surface of the fixed groove.
In addition, the invention also provides another electric connector which is characterized by comprising an insulating body, a first connecting piece and a second connecting piece, wherein the insulating body is provided with a butting surface, a slot is downwards concavely arranged from the butting surface, and the slot is used for the butting element to insert; at least two pairs of differential signal terminals are adjacently arranged on the insulating body, each differential signal terminal is provided with a contact arm, and the contact arms are positioned on the same side of the slot and electrically connected with the butting element in a conductive mode; the shielding shell is provided with a side part for shielding the outer side surface of the insulating body, at least two butting arms which are bent upwards and extend are formed on the side part in a stamping mode, a guide pin extends downwards from the side part and is in conductive connection with the circuit board, and the two butting arms are located between the two pairs of differential signal terminals and are exposed out of the slot to be in electrical conductive connection with the butting element.
Further, the abutting arm is torn from the side portion and bent toward the slot to protrude into the slot, and the guide pin extends from the plate edge of the side portion.
Furthermore, the side part extends towards the slot direction to form a covering part, the covering part is abutted against the butt joint surface, and the upper end of the slot is exposed out of the covering part.
Further, the lateral part includes a main part, the upside of main part extends and has the butt arm, certainly the main part with the opposite side extension that the upside is different forms the guide pin.
Further, the side portion further includes an extending portion extending from the main body portion toward the direction of the butt joint surface, the extending portion is provided with at least two through grooves, each through groove is correspondingly formed on the outer side of each butt joint arm and extends to the upper edge of the main body portion, and each butt joint arm extends from the lower edge of each through groove toward the direction of the butt joint surface.
Furthermore, each differential signal terminal has a first base portion, the first base portion extends upward to form the contact arm, the first base portion extends downward to form a conductive portion, the conductive portion is electrically connected with the circuit board in a conductive manner, and the first base portion is closer to the slot relative to the side portion.
Furthermore, the abutting arm is provided with a second base part, one end of the second base part is connected with the side part, the second base part is far away from the slot relative to the first base part, an abutting part extends upwards from the second base part, and the abutting part enters the slot and is electrically connected with the abutting element in a conductive mode.
Further, the insulating body is provided with a plurality of first receiving holes and a plurality of second receiving holes on one side of the slot, each of the first receiving holes and each of the second receiving holes are communicated with the slot, the plurality of first receiving holes and the plurality of second receiving holes are arranged in a row along the longitudinal direction, the differential signal terminals and the abutting arms are respectively and correspondingly received in the first receiving holes and the second receiving holes, each of the contact arms is provided with a contact portion, each of the abutting arms is provided with an abutting portion, and the contact portions and the abutting portions are electrically connected with the abutting elements in a guiding manner and are aligned in the longitudinal direction.
Furthermore, a plurality of first receiving holes and second receiving holes are formed in two opposite sides of the slot, a plurality of pairs of differential signal terminals are respectively arranged on two opposite sides of the slot and are arranged in two rows, the two rows of differential signal terminals are correspondingly received in the first receiving holes in the two sides of the slot, shielding shells are arranged on two opposite sides of the slot, and each shielding shell is provided with the abutting arm which is correspondingly received in the second receiving hole.
Further, the abutting portion on one side of the slot is disposed symmetrically with respect to the center of the slot with respect to the contact portion on the other side of the slot in the transverse direction perpendicular to the longitudinal direction.
Further, a plurality of first receiving holes and a plurality of second receiving holes are formed in two opposite sides of the slot, a plurality of pairs of differential signal terminals are respectively arranged on two opposite sides of the slot and are arranged in two rows, the two rows of differential signal terminals are correspondingly received in the plurality of first receiving holes in the two sides of the slot, and the shielding shell integrally extends to form a plurality of abutting arms which are respectively located on the two opposite sides of the slot and are correspondingly received in the plurality of second receiving holes.
Compared with the prior art, the shielding shell is integrally formed and provided with the two abutting arms positioned between the two adjacent pairs of differential signal terminals, so that the differential signal terminals can be arranged while the abutting arms are arranged on one side of the slot, namely the shielding shell can not occupy the position of the slot for accommodating the differential signal terminals while providing a good shielding effect, and the high-frequency transmission rate of the electric connector is ensured; meanwhile, the butting arm replaces the original grounding terminal of the electric connector and directly contacts with the butting element, so that the production cost is reduced, the butting arm is stably contacted with the butting element, and the problem of poor contact is avoided; in addition, two between the butt joint arm pass through the main part links to each other, by again the lead foot ground connection and need not weld singly on the circuit board respectively the butt joint arm has not only saved material cost and manufacturing procedure, can guarantee fine shielding effect simultaneously again.
[ description of the drawings ]
Fig. 1 is an exploded perspective view of the electrical connector of the present invention;
FIG. 2 is a partially exploded perspective view of the electrical connector of the present invention;
fig. 3 is a partially exploded perspective view of the terminals and the shield shell in the same row;
FIG. 4 is an exploded, partial perspective view of FIG. 3 after installation;
FIG. 5 is an enlarged view of a portion of FIG. 3;
fig. 6 is a cross-sectional view taken along a-a of fig. 4 after mounting of the terminals and the shield shell in another row;
FIG. 7 is a perspective cross-sectional view of FIG. 2 after installation;
fig. 8 is a right side view of fig. 7.
Detailed description of the embodiments reference is made to the accompanying drawings in which:
electrical connector 100 Circuit board 200 Insulating body 1 Side wall 11
First receiving hole 111 Second receiving hole 112 Outer side 113 End wall 12
Standing leg 121 Locking fastener 122 Abutting surface 13 Fixing block 131
Fixing groove 132 Socket 14 Fool-proof part 141 Fixing foot 2
Terminal 3 Differential signal terminal 31 First base 311 Contact arm 312
Contact portion 3121 Lead-in part 313 Shielding shell 4 Side part 41
Main body 411 Conducting pin 4111 Extension part 412 Through groove 4121
Covering part 4122 Holding piece 4123 Abutment arm 413 Second base 4131
Abutting part 4132 Abutting part 4133 Metal shell A Virtual center line C
[ detailed description ] embodiments
For a better understanding of the objects, structure, features, and functions of the invention, reference should be made to the drawings and detailed description that follow.
Referring to fig. 1 to 8, in a main embodiment of an electrical connector 100 according to the present invention, the electrical connector 100 is soldered on a circuit board 200 for a mating component (not shown) to be mated with, in this embodiment, the electrical connector 100 is a card edge connector, the mating component is an electronic card, and the electrical connector 100 includes an insulating body 1, two fixing pins 2, a plurality of terminals 3 and a metal shell a.
Referring to fig. 1, 2 and 8, the insulating housing 1 has two side walls 11 oppositely disposed in the left-right direction and two end walls 12 oppositely disposed and connecting the two side walls 11, an upper end of the insulating housing 1 has a butt-joint surface 13, and upper surfaces of the two side walls 11 and the two end walls 12 are parts of the butt-joint surface 13. Each of the side walls 11 extends along the longitudinal direction, and is provided with a plurality of first receiving holes 111 and a plurality of second receiving holes 112, the plurality of first receiving holes 111 and the plurality of second receiving holes 112 are alternately arranged in a row in the longitudinal direction, each of the first receiving holes 111 penetrates through the inner surface of the side wall 11, and each of the second receiving holes 112 penetrates through the inner surface, the upper surface, and the outer side 113 of the side wall 11. The outer side surface 113 of each sidewall 11 is outwardly protruded to form two fixing blocks 131, and a fixing groove 132 is formed between each fixing block 131 and the outer side surface 113. Two standing legs 121 extend downwards from the lower end of each end wall 12, wherein one end of each end wall 12 is extended to fix a locking member 122, the standing legs 121 enable the insulative housing 1 to stand on the circuit board 200 smoothly, and the locking member 122 is used for locking the docking element when the docking element is inserted. The abutting surface 13 is recessed downward to form a slot 14, the slot 14 extends along the longitudinal direction and is surrounded by the two side walls 11 and the two end walls 12, the slot 14 is communicated with each of the first receiving holes 111 and each of the second receiving holes 112, the slot 14 has a virtual center line C (corresponding to the center of the slot 14), wherein the slot 14 is divided into two sections by a fool-proof portion 141, and the fool-proof portion 141 is used for cooperating with the abutting element when the abutting element is inserted into the slot 14.
Referring to fig. 1, the two fixing pins 2 are respectively inserted and fixed in one of the end walls 12 and the fool-proof portion 141, the fixing pins 2 are disposed in the fool-proof portion 141, the fixing pins 2 protrude below the fool-proof portion 141, and the fixing pins 2 are welded to the circuit board 200 to fix the insulating body 1 while strength of the fool-proof portion 141 is enhanced.
Referring to fig. 2, 6 to 8, the plurality of terminals 3 are stamped from a copper alloy plate, and in other embodiments, the plurality of terminals 3 may be stamped from other metal materials, and the plurality of terminals 3 are respectively located at two opposite sides of the slot 14 to be arranged in two rows. The two rows of terminals 3 are respectively and correspondingly accommodated in the first accommodating holes 111 of the two side walls 11, and each terminal 3 is partially exposed from the slot 14, the terminal 3 includes a plurality of pairs of differential signal terminals 31, each differential signal terminal 31 has a first base portion 311 located in the first accommodating hole 111, the first base portion 311 is bent toward the slot 14 and then bent upward to form a contact arm 312, the lower end of the contact arm is bent toward the transverse direction perpendicular to the longitudinal direction to form a downwardly extending guide portion 313, the contact arm 312 extends into the slot 14 and has a contact portion 3121 for electrically guiding and connecting with the mating element, the upper end of the contact arm 312 abuts against the inner wall surface of the first accommodating hole 111, and the guide portion 313 is electrically connected with the circuit board 200.
Referring to fig. 2 to 8, the metal shell a is mounted and wrapped around the insulating body 1 from top to bottom, in this embodiment, the metal shell a is composed of two shielding shells 4, and in other embodiments, the metal shell a may be composed of one shielding shell 4' (not shown in the drawings). The shielding shell 4 is made of stainless steel material, but in other embodiments the shielding shell 4 may be made of other material with sufficient strength. In this embodiment, the two shielding cases 4 are symmetrically disposed on the insulating body 1, and both structures are the same, so taking one of the shielding cases 4 as an example, the shielding case 4 has a side portion 41, the side portion 41 extends along the longitudinal direction and is disposed on the outer side of the insulating body 1, the side portion 41 shields and is attached to the outer side surface 113, the side portion 41 includes a main portion 411 and an extending portion 412, the main portion 411 is close to the circuit board 200 and also shields and is attached to the outer side surface 113, two guiding pins 4111 protruding out of the lower end of the insulating body 1 extend downward from the lower side edge (corresponding to the board edge) of the main portion 411 for being soldered to the circuit board 200 to achieve electrical guiding, and the main portion 411 is away from the slot 14 relative to the first base portion 311. The extending portion 412 extends upwards from the main body portion 411, a plurality of abutting arms 413 are formed by tearing from the plate surface of the extending portion 412, a plurality of through grooves 4121 are formed at the periphery of the abutting arms 413, each through groove 4121 extends to the upper edge of the main body portion 411, that is, the lower edge of each through groove 4121 is the upper edge of the main body portion 411; a covering part 4122 is bent from the extending part 412 to the direction of the slot 14 to cover the portion of the abutting surface 13 on the upper surface of the side wall 11 and the end wall 12, and the upper end of the slot 14 is exposed out of the covering part 4122 and is not covered; both ends of the extending portion 412 in the longitudinal direction are protruded with a holding piece 4123 in a direction away from the slot 14, and when the shielding shell 4 is installed on the insulating body 1 from top to bottom, the holding piece 4123 is held against the inner surface of the fixing groove 132 to achieve fixing. A plurality of the abutting arms 413 and a plurality of the differential signal terminals 31 are alternately arranged in a row, the abutting arms 413 are located between a plurality of the differential signal terminals 31 arranged in the same row, wherein, there is one said abutting arm 413 or two said abutting arms 413 between two adjacent pairs of said differential signal terminals 31, the length of the abutting arm 413 is smaller than that of the differential signal terminal 31, the abutting arm 413 has a second base 4131 received in the second receiving hole 112, the lower edge of the second base 4131 is connected to the lower edge of the through groove 4121 that is the upper edge of the main body 411, the second base 4131 is bent from the upper edge of the main body 411 toward the slot 14 but does not enter the slot 14, the length of the second base 4131 is smaller than that of the first base 311, and the lower edges of the second bases 4131 are connected by the body 411; the main body 411 and the lead pins 4111 are spaced apart from the circuit board 200 in the up-down direction of the second base 4131, so that the second base 4131 is spaced apart from the circuit board 200 without contacting. The second base portion 4131 is close to the slot 14 with respect to the body portion 411, and is far from the slot 14 with respect to the first base portion 311.
Extending from the second base portion 4131, bending right and then left to form a bending section (not numbered in the drawings), the lower half of the bending section being located in the second receiving hole 112, the upper half entering into the slot 14, the upper half having an abutting portion 4132, the abutting portion 4132 being electrically connected to the abutting element, the abutting portions 4132 on the abutting arms 413 in the same row being aligned with the contact portions 3121 on the differential signal terminals 31 in the longitudinal direction; the contact arm 413 positioned on the right side in the left-right direction (corresponding to the lateral direction perpendicular to the longitudinal direction) of the slot 14 is aligned with the contact arm 312 positioned on the left side of the slot 14, that is, the contact arm 413 positioned on the right side corresponds to the differential signal terminal 31 positioned on the left side, and the contact portion 4132 positioned on the right side of the slot 14 and the contact portion 3121 positioned on the left side of the slot 14 are symmetrically positioned with respect to a virtual center line C of the slot 14 (corresponding to the center of the slot 14). The abutting arm 413 further has an abutting portion 4133 extending upward from the abutting portion 4132 and bending and extending in a direction away from the slot 14, the abutting portion 4133 is a free end, and the abutting portion 4133 abuts against an inner wall surface of the second receiving hole 112 on a side close to the slot 14, so as to prevent the abutting arm 413 from excessively deviating towards the slot 14.
In other embodiments, the metal shell a is formed by a shielding shell 4 ' (not shown in the drawings), which is equivalent to molding two shielding shells 4 into a whole, the shielding shell 4 ' covers the outer side surfaces 113 of the two side walls 11 of the insulating body 1, the shielding shell 4 ' integrally extends to form a plurality of abutting arms 413 respectively located at two opposite sides of the slot 14 and correspondingly accommodated in the second accommodating holes 112, and the abutting arms 413 have the same structure as the above embodiments, and therefore, the description thereof is omitted.
In summary, the electrical connector of the present invention has the following advantages:
1. the shielding shell 4 is torn to form the abutting arm 413 integrally, and the abutting arm 413 is directly electrically connected with the abutting element in a conductive manner, so that the original grounding terminal is replaced, the production cost is reduced, the abutting element is stably contacted, and the problem of poor contact is avoided.
2. The two abutting arms 413 are connected through the main body 411, and then grounded through the lead pin 4111 without welding the single abutting arm 413 on a circuit board, so that the material cost and the manufacturing process are saved, and a good shielding effect can be ensured.
3. The shielding shell 4 does not occupy the position of the slot 14 for accommodating the differential signal terminal 31 while providing a good shielding effect, so that the high-frequency transmission rate of the electrical connector is ensured, and the good shielding effect is provided while the transmission rate of the electrical connector 100 is not affected.
4. Since the abutting arm 413 is formed by tearing from the shielding shell 4, the length of the abutting arm 413 can be easily controlled according to actual conditions, and a sufficient positive force is provided for the insertion of the abutting element.
5. The abutting arm 413 is made of the same material as the shielding shell 4, and the abutting arm 413 has enough strength and can still be in firm contact with the abutting element after being abutted with the abutting element for multiple times, so that the grounding shielding effect is ensured.
6. The differential signal terminal 31 and the abutting arm 413 are arranged on two opposite sides of the slot 14, so that the transmission rate is further improved, and the shielding effect is enhanced.
7. The abutting portion 4132 on the right side of the slot 14 and the contact portion 3121 on the opposite left side of the slot 14 are symmetrically disposed with respect to the center of the slot 14, so as to ensure that both sides of the docking element can be stably contacted when the docking element is inserted into the slot 14.
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 (23)

1. An electrical connector for electrically connecting a mating component to a circuit board, comprising:
an insulating body having a mating surface, a slot being recessed downward from the mating surface, the slot being for the mating component to be inserted;
at least two pairs of differential signal terminals are adjacently arranged on the insulating body, each differential signal terminal is provided with a contact arm, and the contact arms are positioned on the same side of the slot and electrically connected with the butting element in a conductive mode;
a shielding shell having a main body part, the main body part shields the outer side surface of the insulating body, a guide pin extends from one side of the main body part along the up-down direction, two abutting arms extend from the other side of the main body part along the up-down direction, the guide pin is in the conductive connection with the circuit board, and the two abutting arms are located between the two pairs of differential signal terminals and exposed from the slot and the electrical conductive connection of the abutting elements.
2. The electrical connector of claim 1, wherein: the butt joint arm extends upwards from the upper side of the main body part and partially enters the slot, and the guide pin extends downwards from the lower side of the main body part and protrudes out of the lower end of the insulating body.
3. The electrical connector of claim 1, wherein: the main body part is provided with an extending part which extends upwards, the extending part is torn to form the butt joint arm, a through groove is formed in the periphery of the butt joint arm, the upper end of the butt joint arm is a free end, the lower end of the butt joint arm is integrally connected with the lower edge of the through groove, and the lower edge of the through groove is the upper edge of the main body part.
4. The electrical connector of claim 3, wherein: the shielding shell is provided with a covering part, the covering part is formed by bending the extending part towards the slot, at least part of the covering part covers the butt joint surface, and the upper end of the slot is exposed out of the covering part.
5. The electrical connector of claim 1, wherein: each differential signal terminal is provided with a first base part, the contact arm extends upwards from the first base part, the first base part extends downwards to form a conducting part, the conducting part is electrically conducted with the circuit board, and the first base part is closer to the slot relative to the main body part.
6. The electrical connector of claim 5, wherein: the butt joint arm is provided with a second base part, one end of the second base part is connected with the main body part, the second base part is far away from the slot relative to the first base part, a butt joint part extends upwards from the second base part, and the butt joint part enters the slot and is electrically connected with the butt joint element in a conduction mode.
7. The electrical connector of claim 1, wherein: the insulating body is provided with a plurality of first receiving holes and a plurality of second receiving holes on one side of the slot, each first receiving hole and each second receiving hole are communicated with the slot, the plurality of first receiving holes and the plurality of second receiving holes are arranged in a row along the longitudinal direction, the differential signal terminals and the abutting arms are respectively and correspondingly received in the first receiving holes and the second receiving holes, each contacting arm is provided with a contacting part, each abutting arm is provided with an abutting part, and the contacting parts and the abutting parts are electrically connected with the abutting elements in a guiding manner and are aligned in the longitudinal direction.
8. The electrical connector of claim 7, wherein: the two opposite sides of the slot are respectively provided with a plurality of first accommodating holes and second accommodating holes, the differential signal terminals are respectively arranged on the two opposite sides of the slot and are arranged in two rows, the two rows of differential signal terminals are correspondingly accommodated in the first accommodating holes on the two sides of the slot, the two opposite sides of the slot are respectively provided with the shielding shell, and each shielding shell is provided with the abutting arm which is correspondingly accommodated in the second accommodating hole.
9. The electrical connector of claim 8, wherein: the contact arm on one side of the slot is aligned with the contact arm on the opposite side of the slot in a transverse direction perpendicular to the longitudinal direction.
10. The electrical connector of claim 7, wherein: the abutting part extends upwards to form an abutting part which abuts against the inner surface of one side, close to the slot, of the second accommodating hole.
11. The electrical connector of claim 7, wherein: the shielding shell is integrally provided with a plurality of abutting arms which extend to be located on the two opposite sides of the slot respectively so as to be correspondingly accommodated in the second accommodating holes.
12. The electrical connector of claim 1, wherein: a fixed block is convexly arranged on the outer side face of the insulating body, a fixed groove is formed between the fixed block and the outer side face, the abutting arm extends towards the inside of the slot, a abutting piece is convexly arranged on the shielding shell towards the direction far away from the extending direction of the abutting arm, and the abutting piece abuts against the inner surface of the fixed groove.
13. An electrical connector for electrically connecting a mating component to a circuit board, comprising:
an insulating body having a mating surface, a slot being recessed downward from the mating surface, the slot being for the mating component to be inserted;
at least two pairs of differential signal terminals are adjacently arranged on the insulating body, each differential signal terminal is provided with a contact arm, and the contact arms are positioned on the same side of the slot and electrically connected with the butting element in a conductive mode;
the shielding shell is provided with a side part for shielding the outer side surface of the insulating body, at least two butting arms which are bent upwards and extend are formed on the side part in a stamping mode, a guide pin extends downwards from the side part and is in conductive connection with the circuit board, and the two butting arms are located between the two pairs of differential signal terminals and are exposed out of the slot to be in electrical conductive connection with the butting element.
14. The electrical connector of claim 13, wherein: the butt joint arm is torn from the lateral part and is bent towards the slot so as to protrude into the slot, and the guide pin extends from the plate edge of the lateral part.
15. The electrical connector of claim 13, wherein: the side part extends towards the direction of the slot to form a covering part, the covering part is abutted against the butt joint surface, and the upper end of the slot is exposed out of the covering part.
16. The electrical connector of claim 13, wherein: the lateral part comprises a main body part, the upper side of the main body part extends to form the butting arm, and the main body part and the other side of the upper side, which is different, extend to form the guide pin.
17. The electrical connector of claim 16, wherein: the side part further comprises an extending part extending from the main body part towards the direction of the butt joint surface, the extending part is provided with at least two through grooves, each through groove is correspondingly formed in the outer side of each butt joint arm and extends to the upper edge of the main body part, and each butt joint arm extends from the lower edge of each through groove towards the direction of the butt joint surface.
18. The electrical connector of claim 13, wherein: each differential signal terminal is provided with a first base part, the contact arm extends upwards from the first base part, a conductive part extends downwards from the first base part, the conductive part is electrically connected with the circuit board in a conductive mode, and the first base part is closer to the slot relative to the side part.
19. The electrical connector of claim 18, wherein: the butt joint arm is provided with a second base part, one end of the second base part is connected with the side part, the second base part is far away from the slot relative to the first base part, a butt joint part extends upwards from the second base part, and the butt joint part enters the slot and is electrically connected with the butt joint element in a conduction mode.
20. The electrical connector of claim 13, wherein: the insulating body is provided with a plurality of first receiving holes and a plurality of second receiving holes on one side of the slot, each first receiving hole and each second receiving hole are communicated with the slot, the plurality of first receiving holes and the plurality of second receiving holes are arranged in a row along the longitudinal direction, the differential signal terminals and the abutting arms are respectively and correspondingly received in the first receiving holes and the second receiving holes, each contacting arm is provided with a contacting part, each abutting arm is provided with an abutting part, and the contacting parts and the abutting parts are electrically connected with the abutting elements and aligned in the longitudinal direction.
21. The electrical connector of claim 20, wherein: the two opposite sides of the slot are respectively provided with a plurality of first accommodating holes and second accommodating holes, the differential signal terminals are respectively arranged on the two opposite sides of the slot and are arranged in two rows, the two rows of differential signal terminals are correspondingly accommodated in the first accommodating holes on the two sides of the slot, the two opposite sides of the slot are respectively provided with the shielding shell, and each shielding shell is provided with the abutting arm which is correspondingly accommodated in the second accommodating hole.
22. The electrical connector of claim 21, wherein: the abutting part on one side of the slot is arranged symmetrically to the contact part on the other side of the slot relative to the center of the slot in the transverse direction perpendicular to the longitudinal direction.
23. The electrical connector of claim 20, wherein: the shielding shell is integrally provided with a plurality of abutting arms which extend to be located on the two opposite sides of the slot respectively so as to be correspondingly accommodated in the second accommodating holes.
CN201811465863.0A 2018-12-03 2018-12-03 Electrical connector Active CN109546390B (en)

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CN2596609Y (en) * 2002-12-17 2003-12-31 富士康(昆山)电脑接插件有限公司 Electric connector
CN2770134Y (en) * 2004-12-21 2006-04-05 王顺修 Socket connector
JP4295270B2 (en) * 2005-11-16 2009-07-15 日本航空電子工業株式会社 Connector, mating connector and assembly thereof
JP4809816B2 (en) * 2007-08-31 2011-11-09 パナソニック電工株式会社 connector
CN201204309Y (en) * 2008-03-25 2009-03-04 富士康(昆山)电脑接插件有限公司 Electric connector
JP2018010724A (en) * 2016-07-11 2018-01-18 ヒロセ電機株式会社 Electric connector with shield plate
US10404014B2 (en) * 2017-02-17 2019-09-03 Fci Usa Llc Stacking electrical connector with reduced crosstalk
CN207925718U (en) * 2017-12-15 2018-09-28 富士康(昆山)电脑接插件有限公司 Bayonet connector

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