CN109687205B - Electrical connector - Google Patents
Electrical connector Download PDFInfo
- Publication number
- CN109687205B CN109687205B CN201910136174.3A CN201910136174A CN109687205B CN 109687205 B CN109687205 B CN 109687205B CN 201910136174 A CN201910136174 A CN 201910136174A CN 109687205 B CN109687205 B CN 109687205B
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- Prior art keywords
- contact
- shielding
- shielding member
- extending
- base
- Prior art date
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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
- 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
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
- H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/514—Bases; Cases composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/521—Sealing between contact members and housing, e.g. sealing insert
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention discloses an electric connector, which comprises a row of terminals arranged on an insulating body; the shielding piece is arranged on the insulating body and positioned on one side of the row of terminals; a first shielding part and a second shielding part are respectively positioned at two sides of the shielding part, a first contact part of the first shielding part is contacted with a third contact part of the second shielding part, a second contact part of the first shielding part is contacted with the shielding part, and the contact position of the second contact part and the shielding part is positioned in the insulating body. The insulating body has the pressure of propping to second contact site and shielding piece, makes the contact between second contact site and the shielding piece more reliable, and insulating body can make the contact position of second contact site and shielding piece isolated with the air simultaneously to the contact position of second contact site and shielding piece is difficult for forming the oxide layer or is stained with the dust.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to an electrical connector, and more particularly, to an electrical connector with a good grounding effect.
[ background of the invention ]
One type of existing electrical connector includes: an insulator having a base and a tongue plate extending forward from the base, a plurality of terminals received in the base in two rows, an upper shield received in the insulator between the upper row of the plurality of terminals and the lower row of the plurality of terminals, an upper shield covering an upper surface of the tongue plate near the base, a lower shield covering a lower surface of the tongue plate near the base such that the upper row of the plurality of terminals is located between the shield and the upper shield, the lower row of the plurality of terminals is located between the shield and the lower shield, the upper shield and the lower shield are retained on an outer side of the tongue plate near the base, and the shield abuts the upper shield on an outer side of the tongue plate, a conductive path is formed between the shield, the upper shield and the lower shield, therefore, the noise signals around the upper row of the terminals and the lower row of the terminals are grounded.
However, when transporting or using, the electric connector will shake, bump or fall off inevitably, the buckling effect between the upper shielding part and the lower shielding part is limited, the phenomenon of loosening easily occurs, and the problem of unstable butt joint can also easily occur between the upper shielding part and the shielding part, so that the effect of stably grounding the noise signal can not be ensured. Meanwhile, because the buckling structure of the upper shielding part and the lower shielding part is exposed outside the tongue plate, and the shielding part is also abutted against the upper shielding part outside the tongue plate, an oxide layer or dust is easily formed on the surface, and thus, the conductive path between the upper shielding part and the shielding part and between the upper shielding part and the lower shielding part is easily unstable, and the grounding effect on the noise signal is influenced.
Therefore, there is a need for a new electrical connector to overcome the above problems.
[ summary of the invention ]
In view of the problems faced by the background art, the present invention is directed to provide an electrical connector with good grounding effect, in which the shielding member and the shielding member are reliably contacted in the insulator, and the contact position is not easy to form an oxide layer and be stained with dust.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electrical connector includes an insulative housing; a row of terminals arranged on the insulating body; the shielding piece is arranged on the insulating body and positioned on one side of the row of terminals; the first shielding part and the second shielding part are arranged on the insulating body and are respectively positioned at two sides of the shielding part, the first shielding part is provided with a first contact part and a second contact part, the second shielding part is provided with a third contact part, the first contact part is contacted with the third contact part, the second contact part is contacted with the shielding part, and the contact position of the second contact part and the shielding part is positioned in the insulating body.
Further, the first contact portion and the second contact portion are staggered front to back.
Furthermore, the insulating body comprises an upper body, a lower body and a base, the first shielding piece is fixedly held on the upper body, the second shielding piece is fixedly held on the lower body, the upper body, the lower body and the base are molded into the insulating body together by injection, and the contact position of the second contact part and the shielding piece is positioned in the base.
Furthermore, the insulating body has a base and a tongue plate extending forward from the base, a row of the terminals is fixed to the base and extends to expose on the surface of the tongue plate, the contact position of the first contact portion and the third contact portion is located in the base, and the contact position of the second contact portion and the shielding member is located in the base.
Further, the first shielding member has a first main body portion and an extension arm extending from the first main body portion, the extension arm has a first portion extending from the first main body portion, a first connection portion extending rearward from the first portion, a second portion extending from the first connection portion, and the second portion has the second contact portion.
Further, the first portion has the first contact portion, and a row of the terminals has at least one ground terminal therein, the ground terminal being in contact with the first contact portion and the first connection portion within the insulating body.
Furthermore, the second shielding member has a second main body portion and an extending portion extending from the second main body portion, the extending portion has a second connecting portion extending from the second main body portion toward the extending arm, and the second connecting portion bends and extends the third contact portion.
Further, the first contact portion is in plate-contact with the third contact portion, and the second contact portion is in plate-contact with the shield.
Further, have one and shield shell and a metalwork, it establishes to shield the shell cover outside the insulating body, shield the shell have a major diameter portion and certainly a minor diameter portion that the major diameter portion extends backward, the metalwork have an interlock portion and certainly an at least ear that the interlock portion extended, the interlock portion weld in the minor diameter portion, the ear weld in the shielding part, just the ear is used for being fixed in a circuit board.
Compared with the prior art, the invention has the following beneficial effects:
the first shielding part and the second shielding part are arranged on the insulating body, and can fix the relative positions of the first shielding part and the second shielding part to keep stable contact and a conductive path. And the second contact portion with the contact position of shielding part is located in the insulator, the insulator is to the second contact portion with the shielding part has the pressure of offsetting, makes the second contact portion with contact between the shielding part is more reliable, simultaneously the insulator can make the second contact portion with the contact position and the air of shielding part are isolated, thereby the second contact portion with the contact position of shielding part is difficult for forming the oxide layer or is stained with the dust.
In order to achieve the above purpose, the invention can also adopt the following technical scheme:
an electrical connector includes an insulative housing; a row of terminals arranged on the insulating body; the shielding piece is arranged on the insulating body and positioned on one side of the row of terminals; the first shielding part and the second shielding part are arranged on the insulating body and are respectively positioned on two sides of the shielding part; the insulating body is positioned in the insulating shell, the first shielding part and the second shielding part are fixedly welded in the insulating shell, and the first shielding part and the shielding part are fixedly welded in the insulating shell.
Further, the insulation body and the insulation shell are integrally injection-molded.
Further, the first shielding member has a first main body portion and an extension arm extending from the first main body portion, the extension arm has a first portion extending from the first main body portion, a first connection portion extending from the first portion rearward, a second portion extending from the first connection portion, and the second portion is welded to the shielding member.
Further, at least one ground terminal is provided in a row of the terminals, and the ground terminal is in contact with the first portion and the first connecting portion in the insulating housing.
Furthermore, the second shielding member has a second main body portion and an extending portion extending from the second main body portion, the extending portion has a second connecting portion extending from the second main body portion toward the first shielding member, the second connecting portion is bent and extends to form a third contact portion, and the third contact portion and the first shielding member are welded in the insulating housing.
Further, the welding mode between the first shielding part and the second shielding part is spot welding, and the welding mode between the first shielding part and the shielding part is spot welding.
Furthermore, the shielding shell is sleeved outside the insulating body and provided with a large-diameter part and a small-diameter part extending backwards from the large-diameter part, the welding position of the first shielding part and the second shielding part is correspondingly arranged at the small-diameter part, and the metal piece is provided with an engaging part which is welded with the small-diameter part in the insulating shell.
Furthermore, the metal piece is provided with at least one ear part, the ear part is welded with the shielding piece in the insulating shell, and the ear part is used for being fixed on a circuit board.
Compared with the prior art, the invention also has the following beneficial effects:
the first shielding part and the second shielding part are welded and fixed, the first shielding part and the shielding part are welded and fixed, the first shielding part, the second shielding part and the shielding part can be reliably fixed, the first shielding part, the second shielding part and the shielding part are arranged on the insulating body, the positions of the first shielding part, the second shielding part and the shielding part in the electric connector can be further fixed, and stable contact and a conductive path are kept.
And because the insulation body is positioned in the insulation shell, the first shielding part and the shielding part are welded and fixed in the insulation shell, and the first shielding part and the second shielding part are welded and fixed in the insulation shell, the insulation shell enables the inside and the outside of the electric connector to be isolated, reduces the fluidity of air between the insulation shell and the insulation body, and is not easy to form an oxide layer or be stained with dust.
In order to achieve the above purpose, the invention can also adopt the following technical scheme:
an electrical connector includes an insulative housing; a row of terminals arranged on the insulating body; the shielding piece is arranged on the insulating body and positioned on one side of the row of terminals; the shielding piece is arranged on the insulating body, the shielding piece and the shielding piece are respectively arranged on two sides of the row of the terminals, the shielding piece is in contact with the shielding piece in the insulating body, and the position where the shielding piece is in contact with the shielding piece and the insulating body are subjected to injection molding.
Furthermore, the insulating body is provided with a base part and a tongue plate extending forwards from the base part, a row of the terminals are respectively fixedly arranged on the base part and extend to expose the surface of the tongue plate, and the shielding part is contacted with the shielding part in the base part.
Further, the shielding part and the shielding part are fixed in a welding mode.
Further, the shielding member further has a first shielding member and a second shielding member, the first shielding member and the second shielding member are in contact with the insulating body, the first shielding member has a first main body portion and an extension arm extending from the first main body portion, and the extension arm is in contact with the shielding member.
Further, at least one ground terminal is arranged in the row of terminals, and the ground terminal is in contact with the extension arm in the insulating body.
Compared with the prior art, the invention also has the following beneficial effects:
the shield and the shield are both injection molded with the insulating body, and the relative positions of the shield and the shield can be reliably fixed. And the shielding part is contacted with the shielding part in the insulating body, the insulating body is in pressure resistance to the shielding part and the shielding part, so that the shielding part is more reliably contacted with the shielding part, stable contact and a conductive path are kept, and the contact position between the shielding part and the shielding part is isolated from the air in the insulating body, so that an oxide layer is not easy to form or dust is not easy to adhere to the insulating body, and the contact position between the shielding part and the injection molding of the insulating body further improve the air tightness effect.
[ description of the drawings ]
FIG. 1 is an assembled view of the electrical connector of the present invention;
fig. 2 is an exploded perspective view of the electrical connector of the present invention;
fig. 3 is an exploded view of another perspective of the housing of the electrical connector of the present invention;
fig. 4 is an exploded view of fig. 3 with the terminal and shield added;
fig. 5 is a schematic view of two shields and shields in an electrical connector of the present invention;
fig. 6 is a mating view of the upper row of terminals, two shields and shield members in the electrical connector of the present invention;
fig. 7 is a partial exploded view of the electrical connector of the present invention;
FIG. 8 is a further combination of FIG. 7;
fig. 9 is a perspective partial sectional view of fig. 1.
Detailed description of the embodiments reference is made to the accompanying drawings in which:
[ 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.
As shown in fig. 1, 2 and 3, as a preferred embodiment, the electrical connector 100 of the present invention is adapted to be mated with a mating connector (not shown, the same below), and the electrical connector 100 is mounted on a circuit board (not shown, the same below), the electrical connector 100 includes an insulative housing 1, a plurality of terminals 2 are respectively disposed on the insulative housing 1 in two rows, a shielding member 3 is disposed on the insulative housing 1 between the plurality of terminals 2 in the upper row and the plurality of terminals 2 in the lower row, two shielding members (not numbered, the same below) are disposed on the insulative housing 1, that is, a first shielding member 4 and a second shielding member 5 are disposed on the insulative housing 1, and the first shielding member 4 and the shielding member 3 are respectively disposed on two sides of the plurality of terminals 2 in the upper row, the second shielding member 5 and the shielding member 3 are respectively disposed on two sides of the plurality of terminals 2 in the lower row, the first shielding part 4 and the second shielding part 5 are fixed to each other, the first shielding part 4 and the shielding part 3 are fixed to each other, a shielding shell 6 is sleeved outside the insulating body 1, a metal part 7 and the shielding shell 6 are fixed to each other, and an insulating shell 8 is arranged outside the insulating body 1, the shielding shell 6 and the metal part 7. Of course, in other embodiments, there may be one shield, i.e., the first shield 4 or the second shield 5.
As shown in fig. 2, 3 and 4, an insulating body 1 is composed of an upper body 11, a lower body 12 and a base 13, the upper body 11 and the lower body 12 are respectively provided with two fixing posts 111 and two fixing slots 112, the fixing posts 111 of the upper body 11 and the fixing slots 112 of the lower body 12 are fixed to each other, and the fixing posts 111 of the lower body 12 and the fixing slots 112 of the upper body 11 are fixed to each other. The upper body 11, the lower body 12 and the base 13 are injection molded together to form the insulating body 1. The upper row of the plurality of terminals 2 is held by the upper body 11, the lower row of the plurality of terminals 2 is held by the lower body 12, the shield 3 is located between the upper body 11 and the lower body 12, the first shield 4 is disposed on a side of the upper body 11 away from the shield 3, the first shield 4 is exposed upward from the upper body 11, the second shield 5 is disposed on a side of the lower body 12 away from the shield 3, and the second shield 5 is exposed downward from the lower body 12.
As shown in fig. 3, 4 and 7, the insulating body 1 has a base 14, the main body 13 is disposed outside the upper body 11 and the lower body 12 assembled with each other, the rear section of the upper body 11, the rear section of the lower body 12 and the rear section of the main body 13 together form the base 14, the base 14 has a step surface 16, the base 14 has two fixing platforms 141, a tongue plate 15 extends forward from the base 14, the front section of the upper body 11, the front section of the lower body 12 and the front section of the main body 13 together form the tongue plate 15, the shielding shell 6 is sleeved outside the base 14 and the tongue plate 15 and abuts against the step surface 16 backward, the tongue plate 15 has an upper surface (not numbered, the same below) and a lower surface (not numbered, the same below), two retaining grooves 151 are respectively disposed on two sides of the tongue plate 15, and the retaining grooves 151 retain the mating connector after the mating connector is inserted into the electrical connector 100, ensuring a stable connection between the electrical connector 100 and the mating connector.
As shown in fig. 2, 4 and 7, the upper row of the plurality of terminals 2 and the lower row of the plurality of terminals 2 are respectively fixed to the base 14 and extend forward to the tongue plate 15, the upper row of the plurality of terminals 2 is exposed at the upper surface, the lower row of the plurality of terminals 2 is exposed at the lower surface, two outer sides of the upper row of the plurality of terminals 2 are respectively provided with a grounding terminal 21, and two outer sides of the lower row of the plurality of terminals 2 are respectively provided with a grounding terminal 21. In other embodiments, the plurality of terminals 2 may be in one or more rows.
As shown in fig. 4 and 7, the shield 3 has a third main body portion 31 located at the base 14 and the tongue 15, the third main body 31 is interposed between the upper body 11 and the lower body 12, two through holes 311 are respectively formed at two sides of the third main body 31 corresponding to the fixing posts 111, the fixing posts 111 are inserted into the fixing slots 112 through the through holes 311, so that the shielding member 3 is fixed between the upper body 11 and the lower body 12, both sides of the third main body portion 31 are respectively concavely provided with a catching groove 312, the holding groove 312 is exposed from the holding groove 151 for fastening with the mating connector, two annular portions 32 are respectively extended backward from two sides of the third main body portion 31, the ring portion 32 protrudes rearward from the base portion 14, and the ring portion 32 is used to fix the electrical connector 100 to the circuit board. Two welding pins 33 are disposed between the annular portion 32 and the third main body portion 31, the welding pins 33 extend downward out of the base portion 14, and the two welding pins 33 are used for being welded to the circuit board.
As shown in fig. 2, 4 and 7, the first shielding member 4 and the second shielding member 5 are formed by stamping a metal plate, the first shielding member 4 and the upper body 11 are injection molded together and fixed to the upper body 11, the second shielding member 5 and the lower body 12 are injection molded together and fixed to the lower body 12, the first shielding member 4, the second shielding member 5 and the shielding member 3 are injection molded together with the base 13, and the first shielding member 4 and the shielding member 3 are fixed by spot welding in the base 13.
As shown in fig. 2, 4 and 6, the first shielding member 4 has a first main body portion 41 disposed on the upper body 11 and exposed upward, extending arms 42 respectively extending from two sides of the first main body portion 41 are disposed on the upper body 11, each of the extending arms 42 has a first portion 421 bending downward from the first main body portion 41 and extending horizontally outward of the extending direction of the terminal 2, a first connecting portion 422 extending rearward from the first portion 421, and a second portion 423 bending downward from the first connecting portion 422 and extending horizontally outward of the extending direction of the terminal 2. The first portion 421 has a first bent portion 4211 bent downward from the first body portion 41 and a first contact portion 4212 horizontally extending outward in the extending direction of the terminal 2 from the first bent portion 4211, a first connection portion 422 extending rearward from the first contact portion 4212, and the bottom surface of the first contact portion 4212 and the first connection portion 422 are in contact with the upper row of the ground terminals 21, as shown in fig. 4, 7 and 9, the bottom surface of the first contact portion 4212 and the contact position of the first connection portion 422 and the upper row of the ground terminals 21 are in planar contact in the base portion 14, so that the contact area is increased, as shown in fig. 5, 6 and 9, the second portion 423 has a second bent portion 4231 bent downward from the first connection portion 422, and a second contact portion 4232 horizontally extending outward in the extending direction of the terminal 2 from the second bent portion 4231, the second contact portion 4232 and the shield 3 are fixed by spot welding while being in surface contact with the inner plate of the base portion 14, so that looseness is not easily generated between the second contact portion 4232 and the shield 3, and the bonding effect is more stable. As shown in fig. 4, the spot welding position of the second contact portion 4232 and the shield member 3 is injection-molded with the body base 13.
As shown in fig. 2, 4 and 6, the second shielding member 5 has a second main body 51 disposed on the lower body 12 and exposed downward, extending portions 52 respectively extending from two sides of the second main body 51, each extending portion 52 having a second connecting portion 521 extending from the second main body 51 toward the extending arm 42, and a third contacting portion 522 bent from the second connecting portion 521 toward the first contacting portion 4212 and extending horizontally. As shown in fig. 6, 7 and 9, the third contact portion 522 is fixed to the top surface of the first contact portion 4212 by spot welding while being in plate-surface contact, so that the third contact portion 522 is less likely to loosen from the top surface of the first contact portion 4212, the coupling effect is more stable, and the spot welding position of the third contact portion 522 to the top surface of the first contact portion 4212 is located in the base portion 14.
Of course, in other embodiments, the extension arm 42 may be disposed on the shielding element 3, so that the shielding element 3 contacts the first shielding element 4 or the second shielding element 5; two extension arms 42 are provided, and both extension arms 42 are provided on the shield 3 and are in contact with the first shield 4 and the second shield 5, respectively; the extension portion 52 is provided to the first shield 4 so that the first shield 4 and the second shield 5 are in contact. In general, the positions at which the extension arm 42 and the extension 52 are provided are adjustable as long as the first shutter 4 and the second shutter 5 are brought into contact, and at least one of the first shutter 4 and the second shutter 5 is brought into contact with the shield 3.
As shown in fig. 7, 8 and 9, the shielding shell 6 has a large diameter portion 61 and a small diameter portion 62 extending rearward from the large diameter portion 61, the large diameter portion 61 is sleeved outside the tongue plate 15, the small diameter portion 62 is sleeved on the base portion 14, a diameter dividing surface 63 is formed between the large diameter portion 61 and the small diameter portion 62, the spot welding position of the top surface of the first contact portion 4212 and the third contact portion 522 is arranged at the position of the base portion 14 corresponding to the small diameter portion 62, and the small diameter portion 62 abuts against the step surface 16 to stop the shielding shell 6 from moving rearward.
As shown in fig. 7, 8 and 9, the metal member 7 is disposed on the insulating body 1, the metal member 7 has an engaging portion 71 welded and fixed to the small diameter portion 62 near the diameter dividing surface 63, the engaging portion 71 has two through holes 711 corresponding to the fixing base 141, and the fixing base 141 and the through holes 711 cooperate to stop the metal member 7. An ear part 72 is bent backwards and downwards from two sides of the joint part 71 and extends respectively, the ear part 72 and the annular part 32 are correspondingly overlapped and welded and fixed, and the ear part 72 is used for being fixed on the circuit board. Of course, in other embodiments, the shielding shell 6 and the metal member 7 may be integrally connected in a front-to-back manner.
As shown in fig. 1, 8 and 9, the insulating housing 8 is integrally injection molded with the insulating body 1, the shielding shell 6 and the metal member 7. The insulating housing 8 has a housing portion 81 covering the base portion 14, the housing portion 81 is disposed outside the tongue plate 15 and the large-diameter portion 61, a mating space 82 is formed between the housing portion 81 and the large-diameter portion 61 and the tongue plate 15, an upper row of the plurality of terminals 2 and a lower row of the plurality of terminals 2 are respectively exposed in the mating space 82, meanwhile, the latching groove 151 and the latching groove 312 are exposed in the mating space 82, and the mating connector enters the mating space 82 and is electrically connected to the electrical connector 100. Spot welding positions of the top surface of the first contact portion 4212 and the third contact portion 522 are provided in the housing 81, spot welding positions of the second contact portion 4232 and the shield 3 are provided in the housing 81, the bottom surface of the first contact portion 4212 and the first connection portion 422 are in contact with the upper row of the ground terminals 21 in the housing 81, and the engagement portion 71 and the small diameter portion 62 are in contact in the housing 81.
The structure and connection relationship of the section are not shown in the drawing, and two fixing portions 83 respectively extend backward from two sides of the housing portion 81 to fix the electrical connector 100 to the circuit board, the ring portion 32 is exposed downward from the fixing portions 83, so that the ring portion 32 is electrically contacted with the circuit board, the welding positions of the ear portion 72 and the ring portion 32 are disposed on the fixing portions 83, and the ear portion 72, the ring portion 32 and the fixing portions 83 are mounted on the circuit board together by using a locking structure.
The electrical connector 100 is formed by the following steps:
first, the first shield 4, the upper row of the plurality of terminals 2 and the upper body 11 are injection molded together, the upper row of the plurality of terminals 2 is held in the upper body 11, the first shield 4 is exposed upward from the upper body 11, the first contact portion 4212 is exposed upward from the upper body 11, the second contact portion 4232 is located outside the upper body 11, and the bottom surface of the first contact portion 4212 and the first connection portion 422 are both in contact with the upper row of the ground terminals 21; the second cover 5, the lower row of the plurality of terminals 2 and the lower body 12 are injection molded together, the lower row of the plurality of terminals 2 is held in the lower body 12, the second cover 5 is exposed downward from the lower body 12, and the second connecting portion 521 and the third contact portion 522 are located outside the lower body 12.
Next, the upper body 11, the lower body 12, and the shield 3 are assembled together such that the fixing posts 111 pass through the through holes 311 and are positioned in the fixing grooves 112, and the shield 3 is interposed in the through holes 311 between the upper body 11 and the lower body 12.
Thereafter, the top surface of the first contact portion 4212 and the third contact portion 522 are spot-welded, and the second contact portion 4232 and the shield 3 are spot-welded.
Next, the aforementioned structure is injection molded together with the main body 13, the upper body 11, the lower body 12 and the main body 13 together form the insulation body 1, the first shield 4 is exposed upward from the insulation body 1, the second shield 5 is exposed downward from the insulation body 1, the shield 3 is held in the insulation body 1, the bottom surface of the first contact portion 4212 and the contact position of the first connection portion 422 and the upper row of the ground terminals 21 are located in the insulation body 1, the spot welding position of the top surface of the first contact portion 4212 and the third contact portion 522 are located in the insulation body 1, the spot welding position of the second contact portion 4232 and the shield 3 are located in the insulation body 1, the retaining groove 312 is exposed laterally from the retaining groove 151, and the ring portion 32 protrudes rearward from the base portion 14, the upper row of the plurality of terminals 2 is exposed upward on the upper surface, and the lower row of the plurality of terminals 2 is exposed downward on the lower surface.
Then, the shielding shell 6 is assembled to the insulating body 1 from front to back, such that the small diameter portion 62 is sleeved on the base portion 14, the small diameter portion 62 abuts against the step surface 16 backwards to stop the shielding shell 6 from moving backwards, and the large diameter portion 61 is sleeved outside the tongue plate 15.
Then, the metal fitting 7 is assembled and fixed to the insulating body 1 from top to bottom, the fixing base 141 is located in the through hole 711, the ear portion 72 is in planar contact with the annular portion 32, the engaging portion 71 is welded and fixed to the small diameter portion 62 near the diameter dividing surface 63, and the ear portion 72 is welded and fixed to the annular portion 32.
Finally, the aforementioned structure is injection molded together with the insulating housing 8, the housing portion 81 and the large diameter portion 61 together form the abutting space 82 with the tongue plate 15, and the ring portion 32 exposes the fixing portion 83 downward.
In summary, the electrical connector 100 of the present invention has the following beneficial effects:
(1) the first shielding member 4 and the upper body 11 are integrally injection molded, the second shielding member 5 and the lower body 12 are integrally injection molded, and the base 13, the upper body 11 and the lower body 12 are together injection molded to form the insulating body 1, so that when the docking connector is inserted into the docking space 82, the docking connector is prevented from colliding with the first shielding member 4 and the second shielding member 5, and the first shielding member 4 and the second shielding member 5 are displaced and separated from the insulating body 1.
Moreover, the contact position of the second contact portion 4232 and the shielding member 3 is located in the base 13, so that the base 13 has a pressure to the first shielding member 4 and the shielding member 3, so that the first shielding member 4 and the shielding member 3 are not easily broken, the connection is more reliable, the stability of the conductive path between the first shielding member 4 and the shielding member 3 is further improved, and the grounding effect on the noise signal is better.
(2) The contact position between the top surface of the first contact portion 4212 and the third contact portion 522 is located in the base portion 14, the contact position between the second contact portion 4232 and the shield member 3 is located in the base portion 14, and when the docking connector is inserted into the docking space 82, collision between the top surface of the first contact portion 4212 and the third contact portion 522 of the docking connector and collision between the second contact portion 4232 and the shield member 3 are avoided, so that the contact between the top surface of the first contact portion 4212 and the third contact portion 522 is stable and not easy to release, and the contact between the second contact portion 4232 and the shield member 3 is also stable and not easy to release.
Meanwhile, since the contact position of the top surface of the first contact portion 4212 and the third contact portion 522 is located in the base portion 14 and the contact position of the second contact portion 4232 and the shield 3 is located in the base portion 14, the two contact positions are isolated from air, and an oxide layer is not easily formed or dust is not easily attached.
(3) The engaging portion 71 is soldered to the small diameter portion 62, and the ear portion 72 is soldered to the shielding member 3, so that a stable conductive path is formed among the shielding shell 6, the metal member 7 and the shielding member 3, when the docking connector is plugged into the mating space 82, the docking connector contacts with the shielding shell 6, the first main body portion 41 and the second main body portion 51, and the effect of grounding noise signals around the upper row of the plurality of terminals 2 and the lower row of the plurality of terminals 2 is further enhanced.
(4) The top surface of the first contact portion 4212 is in surface contact with the third contact portion 522, and the second contact portion 4232 is in surface contact with the shield 3, so that the contact area can be increased, and the effect of grounding noise signals is improved.
(5) The insulation body 1 and the insulation shell 8 are integrally formed by injection molding, and the insulation shell 8 covers the insulation body 1, so that the insulation body 1 is prevented from being exposed to the outside, and further, an oxide layer is prevented from being formed or dust is prevented from being attached to the welding position of the second contact portion 4232 and the shielding member 3.
(6) The upper row of ground terminals 21 is in contact with the first contact portion 4212 and the first connection portion 422 in the insulating housing 8. Therefore, multi-path grounding of noise signals around the upper row of the terminals 2 and the lower row of the terminals 2 is realized.
(7) The spot welding position between the top surface of the first contact portion 4212 and the third contact portion 522 is correspondingly disposed at the small diameter portion 62, so that the spot welding position between the top surface of the first contact portion 4212 and the third contact portion 522 is prevented from being exposed to the outside, the fluidity of air other than the spot welding position between the top surface of the first contact portion 4212 and the third contact portion 522 is reduced, and the welding position between the second contact portion 4232 and the third contact portion 522 is further prevented from being easily formed with an oxide layer or being stained with dust.
The engaging portion 71 of the metal member 7 is soldered to the small diameter portion 62, and the engaging portion 71 and the small diameter portion 62 are soldered and fixed in the insulating housing 8, because the engaging portion 71 is lower than the large diameter portion 61, the height of the electrical connector 100 is not increased relative to the case that the engaging portion 71 is fixed to the large diameter portion 61.
And the joint portion 71 is welded to the small diameter portion 62 relative to the joint portion 71 fixed to the large diameter portion 61, so that when the large diameter portion 61 and the insulating housing 8 are injection molded, no step is formed therebetween, and no additional gap is generated between the insulating housing 8 and the large diameter portion 61, of course, dust and air cannot easily enter the electrical connector 100 from between the insulating housing 8 and the large diameter portion 61, and further, the welding position of the second contact portion 4232 and the shielding member 3 is not easily oxidized or stained with dust.
(8) The first contact portion 4212 and the second contact portion 4232 are staggered back and forth, so that the contact position of the first contact portion 4212 and the third contact portion 522 and the contact position of the second contact portion 4232 and the shield 3 are staggered back and forth in the base portion 14, the height of the base portion 14 is not accumulated, and the requirement of lightening and thinning the electrical connector 100 is met.
(9) Each of the extension arms 42 has the first portion 421 bent downward from the first main body portion 41 and extending horizontally outward in the extending direction of the terminal 2, the first connection portion 422 extending rearward from the first portion 421, and the second portion 423 bent downward from the first connection portion 422 and extending horizontally outward in the extending direction of the terminal 2. The first portion 421 has the first bending portion 4211 bent downward from the first body 41 and the first contact portion 4212 horizontally extending outward from the first bending portion 4211 in the extending direction of the terminal 2, and the bending and extending structure of the extension arm 42 can extend the length of the extension arm 42, so that the extension arm 42 has good elasticity, the first contact portion 4212 is in elastic contact with the upper row of the ground terminals 21, and the second contact portion 4232 is in elastic contact with the shield 3, and thus, fatigue is not caused.
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 drawings are included in the scope of the present invention.
Claims (15)
1. An electrical connector, comprising:
an insulating body having a base and a tongue plate extending forward from the base;
a row of terminals which are fixedly arranged on the base part and extend to expose on the surface of the tongue plate;
the shielding piece is arranged on the insulating body and positioned on one side of the row of terminals;
a first shielding member and a second shielding member, which are disposed on the insulating body and located at two sides of the shielding member, respectively, the second shielding member is located under the first shielding member, the first shielding member has a first main body portion and an extension arm extending from the first main body portion, the extension arm has a first portion bending downward and extending from the first main body portion, the first portion has a first contact portion, a first connection portion extending backward from the first portion, a second portion extending downward and outward from the first connection portion, the second portion has a second contact portion, the second shielding member has a second main body portion and an extension portion extending from the second main body portion, the extension portion has a second connection portion extending from the second main body portion toward the extension arm, the second connection portion bends inward and extends a third contact portion along the arrangement direction of the terminals, the third contact part is located above the first contact part, the first contact part is in contact with the third contact part, the second contact part is in contact with the shielding piece, the contact position of the first contact part and the third contact part is located in the base part, and the contact position of the second contact part and the shielding piece is located in the base part.
2. The electrical connector of claim 1, wherein: the first contact portion and the second contact portion are staggered from each other in the front-rear direction.
3. The electrical connector of claim 1, wherein: the insulating body comprises an upper body, a lower body and a base, the first shielding piece is fixedly held on the upper body, the second shielding piece is fixedly held on the lower body, the upper body, the lower body and the base are molded into the insulating body together by injection, and the contact position of the second contact part and the shielding piece is positioned in the base.
4. The electrical connector of claim 1, wherein: the first portion has the first contact portion, and a row of the terminals has at least one ground terminal therein, the ground terminal being in contact with the first contact portion and the first connection portion within the insulative body.
5. The electrical connector of claim 1, wherein: the first contact portion is in surface contact with the third contact portion, and the second contact portion is in surface contact with the shielding piece.
6. The electrical connector of claim 1, wherein: the shielding shell is sleeved outside the insulating body, the shielding shell is provided with a large-diameter part and a small-diameter part extending backwards from the large-diameter part, the metal piece is provided with an engaging part and at least one ear part extending from the engaging part, the engaging part is welded to the small-diameter part, the ear part is welded to the shielding part and used for being fixed on a circuit board, the contact position of the first contact part and the third contact part is located in the small-diameter part, and the contact position of the second contact part and the shielding part is located behind the small-diameter part.
7. An electrical connector, comprising:
an insulating body having a base and a tongue plate extending forward from the base;
a row of terminals which are fixedly arranged on the base part and extend to expose on the surface of the tongue plate;
the shielding piece is arranged on the insulating body and positioned on one side of the row of terminals;
a first shielding member and a second shielding member, which are disposed on the insulating body and located at two sides of the shielding member, respectively, the second shielding member is located under the first shielding member, the first shielding member has a first main body portion and an extension arm extending from the first main body portion, the extension arm has a first portion bending downward and extending from the first main body portion, the first portion has a first contact portion, a first connection portion extends backward from the first portion, a second portion extends downward and outward from the first connection portion, the second portion has a second contact portion, the second contact portion is welded to the shielding member, the second shielding member has a second main body portion and an extension portion extending from the second main body portion, the extension portion has a second connection portion extending from the second main body portion toward the first shielding member, the second connecting part is bent inwards along the arrangement direction of the terminals and extends to form a third contact part, and the third contact part is positioned above the first contact part;
the insulating body is positioned in the insulating shell, the first contact part and the third contact part are welded and fixed in the insulating shell, the second contact part and the shielding piece are welded and fixed in the insulating shell, the contact position of the first contact part and the third contact part is positioned in the base, and the contact position of the second contact part and the shielding piece is positioned in the base.
8. The electrical connector of claim 7, wherein: the insulation body and the insulation shell are integrally formed in an injection molding mode.
9. The electrical connector of claim 7, wherein: the row of terminals has at least one ground terminal therein, the ground terminal contacting the first portion and the first connecting portion within the insulative housing.
10. The electrical connector of claim 7, wherein: the welding mode between the first shielding part and the second shielding part is spot welding, and the welding mode between the first shielding part and the shielding part is spot welding.
11. The electrical connector of claim 7, wherein: the shielding shell is sleeved outside the insulating body and provided with a large-diameter part and a small-diameter part extending backwards from the large-diameter part, the welding position of the first shielding part and the second shielding part is correspondingly arranged at the small-diameter part, the metal piece is provided with an engagement part, the engagement part and the small-diameter part are welded in the insulating shell, the contact position of the first contact part and the third contact part is located at the base part, and the contact position of the second contact part and the shielding part is located in the base part.
12. The electrical connector of claim 11, wherein: the metal piece is provided with at least one ear part, the ear part is welded with the shielding piece in the insulating shell, and the ear part is used for being fixed on a circuit board.
13. An electrical connector, comprising:
an insulating body having a base and a tongue plate extending forward from the base;
a row of terminals which are fixedly arranged on the base part and extend to expose on the surface of the tongue plate;
the shielding piece is arranged on the insulating body and positioned on one side of the row of terminals;
a shielding member disposed on the insulating body, wherein the shielding member and the shielding member are disposed on two sides of a row of the terminals, respectively, the shielding member further includes a first shielding member and a second shielding member, the second shielding member is disposed under the first shielding member, the first shielding member includes a first main body portion and an extension arm extending from the first main body portion, the extension arm includes a first portion extending from the first main body portion in a downward bending manner, the first portion includes a first contact portion, a first connecting portion extends from the first portion in a backward direction, a second portion extends from the first connecting portion in a downward and outward direction, the second portion includes a second contact portion, the second shielding member includes a second main body portion and an extending portion extending from the second main body portion, the extending portion includes a second connecting portion extending from the second main body portion in a direction toward the first shielding member, along the direction of arrangement of terminal the second connecting portion is buckled inwards and is extended a third contact site, the third contact site is in the top of first contact site, first contact site with the contact position of third contact site is located in the basal portion, the second contact site with the shield in contact in the basal portion, just first shield with the position that the shield contacted with insulator injection moulding.
14. The electrical connector of claim 13, wherein: the shielding part and the shielding part are fixed in a welding mode.
15. The electrical connector of claim 13, wherein: at least one ground terminal is arranged in the row of terminals, and the ground terminal is in contact with the extension arm in the insulating body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613413 | 2018-12-27 | ||
| CN2018116134131 | 2018-12-27 |
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| CN109687205A CN109687205A (en) | 2019-04-26 |
| CN109687205B true CN109687205B (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910136174.3A Active CN109687205B (en) | 2018-12-27 | 2019-02-25 | Electrical connector |
| CN201910136142.3A Active CN109687224B (en) | 2018-12-27 | 2019-02-25 | Electrical connector |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910136142.3A Active CN109687224B (en) | 2018-12-27 | 2019-02-25 | Electrical connector |
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| CN (2) | CN109687205B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112448202A (en) * | 2019-09-04 | 2021-03-05 | 上海莫仕连接器有限公司 | Electrical connector |
| CN110649439A (en) | 2019-11-08 | 2020-01-03 | 东莞立德精密工业有限公司 | Method for manufacturing connector |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109687224B (en) | 2020-09-29 |
| CN109687205A (en) | 2019-04-26 |
| CN109687224A (en) | 2019-04-26 |
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