CN216289322U - High-reliability full-shielding electric connector - Google Patents
High-reliability full-shielding electric connector Download PDFInfo
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- CN216289322U CN216289322U CN202023040165.1U CN202023040165U CN216289322U CN 216289322 U CN216289322 U CN 216289322U CN 202023040165 U CN202023040165 U CN 202023040165U CN 216289322 U CN216289322 U CN 216289322U
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Abstract
The invention provides a high-reliability full-shielding electric connector which comprises a plastic base and a signal module, wherein the plastic base is provided with a plurality of mounting grooves which are arranged in the same direction, a convex hull with one-side guide is arranged in each mounting groove, the signal module is arranged in the plastic base along the direction of the convex hull, and the position between the signal module and the plastic base is fixed. The invention has the advantages that the signal terminals are covered in the signal module by the shielding sheets and the grounding terminals in the whole area, thereby weakening the antenna effect and crosstalk of the terminals at the butt joint; and the shielding plate is fixed in a mode of combining interference crimping with laser welding, so that the connection reliability of the whole shielding plate structure is enhanced.
Description
Technical Field
The invention relates to the technical field of electric connectors, in particular to a high-reliability full-shielding electric connector.
Background
The high-speed backplane connector is widely applied to the fields of 5G communication, servers, data centers and the like, and is used for quickly transmitting high-capacity data. With the rapid development of information technology, the transmission rate of the connector is required to be higher and higher by the equipment, and the signal density is higher and higher. Interference between signals becomes a problem in increasing the speed and density of the connector. At present, high-speed electric connector manufacturers adopt various shielding differential structures, but the shielding effect at the signal terminal interface is often insufficient, the reliability is insufficient, or the process is complex, the cost is high, and the automation is difficult.
Disclosure of Invention
The invention provides a high-reliability full-shielding electric connector aiming at the defects of the prior art.
The invention solves the technical problems through the following technical means:
a high-reliability full-shielding electric connector comprises a plastic base and a signal module, wherein the plastic base is provided with a plurality of mounting grooves which are arranged in the same direction, a convex hull with one-side guide is arranged in each mounting groove, the signal module is arranged in the plastic base along the direction of the convex hull, and the position between the signal module and the plastic base is fixed;
the signal module includes signal terminal, ground terminal, insulating plastic and shielding piece, signal terminal and ground terminal are fixed in insulating plastic through the mode of moulding plastics in the mould, the shielding piece with interference fit between the insulating plastic, the shielding piece with laser welding between the ground terminal, the shielding piece with the ground terminal covers signal terminal in the whole area and has weakened the antenna effect and the crosstalk of terminal in butt joint department.
Preferably, the plastic base is provided with a large guide angle at the butt joint mutual matching side and 4 guide grooves, wherein the distances between the 2 guide grooves at the same side are unequal.
Preferably, the signal terminal and the ground terminal are divided into a wiring area A and a butt-joint area B, and fish eyes are arranged at the end parts of the signal terminal and the ground terminal;
a first round hole is formed in the signal terminal close to the fisheye side;
a plurality of second round holes and third round holes are formed in the side, close to the fisheye, of the grounding terminal, and the second round holes and the third round holes are located in the wiring area A;
the grounding terminal is provided with a plurality of special-shaped holes in a wiring area A, one side of each special-shaped hole is provided with a groove, and the other side of each special-shaped hole is provided with a bulge;
the grounding terminal is provided with a 90-degree bent sound fork-shaped structure at the top end of the butt joint area, and a U-shaped groove is formed in the sound fork-shaped structure.
Preferably, a sinking structure for clamping the shielding sheet is arranged on the insulating plastic, and a guide column for connecting the shielding sheet is arranged on the insulating plastic to form double positioning of the shielding sheet;
a chamfer is formed at the top of the guide post, and a plurality of convex ribs are arranged on the side wall of the guide post;
the guide posts are multiple, and at least 2 groups of the guide posts are symmetrically arranged;
the first clamping groove is formed in the position, corresponding to the wiring area A, of the insulating plastic and located at the position of the guide post, and the first clamping groove is used for exposing the special-shaped hole in the grounding terminal;
and the insulation plastic is provided with a third clamping groove which exposes the upper tuning fork structure of the grounding terminal.
Preferably, a plurality of bent convex elastic arms are arranged at the end part of the shielding sheet, a plurality of process square holes are formed in the shielding sheet, at least two groups of process square holes are symmetrically arranged, and an anti-tuning fork structure bump is arranged at one end of each process square hole;
the shielding sheet and the insulating plastic are connected in an interference fit manner through the process square hole and the guide column;
the shielding sheet is connected with the grounding terminal in an interference fit manner through a bent convex elastic arm and a special-shaped hole, the bent convex elastic arm is inserted into the special-shaped hole to be elastically deformed, and the protrusion and the edge of the groove on the other side form 3-point interference contact to form electric connection;
the convex block of the anti-tuning fork structure on the shielding plate is welded with the U-shaped groove arranged on the tuning fork structure by laser to form electric connection;
the shielding plate is provided with an elastic arm corresponding to the second clamping groove position, and the elastic arm is elastically compressed to form electric connection with the terminal butt joint surface;
and protruding special-shaped elastic arms for limiting the fixed signal module to be inserted into the mounting groove are arranged on two sides of the shielding sheet.
The invention has the advantages that:
1. the signal terminals are covered in the signal module by the shielding sheets and the grounding terminals in the whole area, so that the antenna effect and crosstalk of the terminals at the butt joint position are weakened; the shielding sheet is fixed in a mode of combining interference crimping with laser welding, so that the connection reliability of the whole shielding sheet structure is enhanced;
2. a sinking mechanism is designed on the insulating plastic of the signal module, so that the shielding sheet falls into the sinking mechanism to form a double-positioning structure for the peripheral edge of the shielding sheet and the internal guide post, the positioning accuracy in the automatic shielding sheet mounting process is ensured, and the mounting reliability is improved;
3. the plastic base installation guide way designs for both sides asymmetric structure, plays the foolproof effect at the product butt joint in-process, prevents to damage inside signal module with the mistake of butt joint end is inserted.
Drawings
Fig. 1 is a schematic view of the overall structure of the high-speed shielded connector of the present invention;
FIG. 2 is a schematic view of a plastic base structure according to the present invention;
FIG. 3 is a schematic diagram of a signal module according to the present invention;
FIG. 4 is a schematic diagram of the signal terminal and the ground terminal of the present invention;
FIG. 5 is a schematic view of an insulating plastic structure according to the present invention;
FIG. 6 shows a schematic view of the shield sheet structure of the present invention;
fig. 7 is a sectional view showing a connection structure of the shield plate and the ground terminal according to the present invention.
Reference numbers in the figures: 1. plastic base, 11, mounting groove, 12, convex hull, 13, large guide angle, 14, guide groove, 15, guide groove, 16, guide groove, 17, guide groove, 2, signal module, 21, signal terminal, 211, first round hole, 22, grounding terminal, 221, second round hole, 222, second round hole, 223, special-shaped hole, 2231, groove, 2232, projection, 225, tuning fork structure, 2251, U-shaped groove, 23, insulating plastic, 231, first card slot, 232, second card slot, 233, special-shaped hole, 235, guide post, 2351, chamfer, 2352, convex rib, 237, third card slot, 24, shielding piece, 241, protruding special-shaped elastic arm, 243, bending projection elastic arm, 244, elastic arm, 245, technical square hole, 246, anti-tuning fork structure lug.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 1-7, the high-reliability full-shielding electrical connector according to this embodiment includes a plastic base 1 and a signal module 2, where the plastic base 1 has a plurality of mounting grooves 11 arranged in the same direction, a convex hull 12 is arranged in the mounting groove 11 and guides one side of the convex hull 12, and the signal module 2 is installed in the plastic base 1 along the direction of the convex hull 12 to fix a position between the signal module 2 and the plastic base 1;
after the signal module 2 is installed in the plastic base 1 along the guiding direction of the convex hull 12, the protruding special-shaped elastic arms 241 on the two sides of the signal module are compressed and rebounded to be clamped on the rear side of the convex hull 12, so that the signal module 2 is fixed in the plastic base 1.
The plastic base 1 is provided with a large guide angle 13 at the butt joint interworking side, and is provided with 4 guide grooves 14, 15, 16 and 17, wherein the distances between the 2 guide grooves 14 and 15 at the same side and the distances between the 2 guide grooves 16 and 17 at the same side are unequal, so that the butt joint end can be prevented from being inserted into a damaged signal module in a 180-degree-reverse direction, and the plastic base 1 has foolproof and blind plugging functions at a butt joint interface.
The signal terminal 21 and the grounding terminal 22 are divided into a wiring area A and a butt joint area B, and fish eyes are arranged at the end parts of the signal terminal 21 and the grounding terminal 22;
the signal terminal 21 is provided with a first round hole 211 near the fish eye side for reinforcement;
a plurality of second round holes 221 and third round holes 222 are formed in the side, close to the fisheye, of the ground terminal 22, and the second round holes 221 and the third round holes 222 are located in the wiring area a;
the ground terminal 22 is provided with a plurality of special-shaped holes 223 in the wiring area a, one side of the special-shaped holes 223 is provided with a groove 2231, and the other side of the special-shaped holes 223 is provided with a projection 2232;
the ground terminal 22 is provided with a 90 ° bent tuning fork structure 225 at the top end of the butt-joint region, and the tuning fork structure 225 is provided with a U-shaped groove 2251.
A sinking structure 233 for clamping the shielding sheet 24 is arranged on the insulating plastic 23, and a guide post 235 for connecting the shielding sheet 24 is arranged on the insulating plastic 23 to form double positioning of the shielding sheet 24;
the top of the guide column 235 is provided with a chamfer 2351 so as to guide the shielding sheet 24 in advance, the side wall of the guide column 235 is provided with a plurality of convex ribs 2352, and the plurality of convex ribs 2352 are in interference fit with the technical square hole 245 on the shielding sheet 24 to play a role in fixing;
the guide posts 235 are provided in plural, at least 2, pairs symmetrically so as to limit the degree of freedom of the shield plate 24 in the whole plane; the structure utilizes the process groove naturally generated on the shielding sheet 24 to carry out positioning design, thereby avoiding the design of additional positioning columns and saving space.
A first clamping groove 231 is formed in the insulating plastic 23 at a position corresponding to the wiring area a and located at the position of the guide pillar 235, and the first clamping groove 231 is used for exposing the special-shaped hole 223 on the ground terminal 22 so as to facilitate interference connection of the shielding sheet 24;
a second slot 232 disposed on the insulating plastic 23 and exposing the mating surface of the ground terminal 22 at a position corresponding to the mating region B, so that the elastic arm 244 of the shielding plate 24 elastically contacts therewith; the insulating plastic 23 is opened with a third notch 237 exposing the tuning fork-shaped structure 225 on the ground terminal 22 for laser welding with the shield plate 24.
The end of the shielding plate 24 is provided with a plurality of bending convex elastic arms 243, the shielding plate 24 is provided with a plurality of process square holes 245, at least two groups of process square holes 245 are symmetrically arranged, and one end of each process square hole 245 is provided with an anti-tuning fork structure bump 246;
the shielding sheet 24 and the insulating plastic 23 are connected through interference fit between the process square hole 245 and the guide column 235;
the shielding sheet 24 and the ground terminal 22 are connected in an interference fit manner through a bent convex elastic arm 243 and a special-shaped hole 223, the bent convex elastic arm 243 is inserted into the special-shaped hole 223 to be elastically deformed, and the protrusion 2232 and the edge of the groove 2231 on the other side form 3-point interference contact to form electrical connection;
the anti-tuning fork structure projection 246 on the shielding plate 24 is laser welded with the U-shaped groove 2251 formed on the tuning fork structure 225;
the shielding plate 24 is provided with an elastic arm 244 corresponding to the position of the second slot 232, and the elastic arm is elastically compressed to form electric connection with the terminal butt joint surface;
the shielding plate 24 is provided at both sides thereof with protruding special-shaped spring arms 241 for restricting the insertion position of the signal module 2 into the mounting groove 11.
The shielding sheet 24 and the insulating plastic 23 are preliminarily fixed through interference fit of the process square hole 245 and the guide column 235; the bent convex elastic arm 243 and the special-shaped hole 223 are in interference press connection with the grounding terminal 22, the head is in laser welding, and the connection and fixation are further strengthened.
The differential pair whole body of the signal terminal 21 is wrapped by the grounding terminal 22 and the shielding sheet 24 in 3 directions, so that an efficient shielding effect can be formed, the signal integrity performance is improved, the signal terminal 21 is provided with a first round hole 221 close to the fish eye side, plastic can be injected into the round hole, and the reliability of the signal terminal 21 fixed in the insulating plastic 23 is enhanced.
The ground terminal 22 has a plurality of second round holes 221 and third round holes 222 near the fish-eye structure and the wiring area a, so that plastic can be injected therein to enhance the reliability of fixing the ground terminal 22 in the insulating plastic 23.
The ground terminal 22 has a plurality of shaped holes 223 in the wiring area a, the shaped holes 223 having a groove 2231 on one side and a protrusion 2232 on the other side, and when the bent protruding elastic arm 243 of the shielding plate 24 is inserted into the shaped holes 223, the shaped holes 223 can elastically deform and can form 3-point interference contact with the protrusion 2232 and the edge of the groove 2231 on the other side, thereby achieving electrical connection. Further, the ground terminal 22 is provided with a 90 ° bent tuning fork-shaped structure 225 at the top of the butt-joint region, wherein the U-shaped groove 2251 is laser welded with the anti-tuning fork-shaped protrusion 246 of the shielding plate 24, so that a reliable connection with the ground terminal 22 at the butt-joint region can be achieved.
The shielding sheet 24 covers the signal terminal 21 in the wiring area A and the butt joint area B, so that the signal integrity is improved; and realize a plurality of connection and fixation with the ground terminal 22 within a limited length, the reliability of the whole structure of the signal module 2 is enhanced.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. A highly reliable fully shielded electrical connector, comprising: the signal module comprises a plastic base (1) and a signal module (2), wherein the plastic base (1) is provided with a plurality of mounting grooves (11) which are arranged in the same direction, a convex hull (12) which can guide at one side is arranged in each mounting groove (11), the signal module (2) is arranged in the plastic base (1) along the guide direction of the convex hull (12), and the position between the signal module (2) and the plastic base (1) is fixed;
signal module (2) include signal terminal (21), ground terminal (22), insulating plastic (23) and shielding piece (24), signal terminal (21) and ground terminal (22) are fixed in insulating plastic (23) through the mode of moulding plastics in the mould, shielding piece (24) with interference fit between insulating plastic (23), shielding piece (24) with laser welding between ground terminal (22), shielding piece (24) with ground terminal (22) is the whole regional antenna effect and the crosstalk of terminal at the butt joint that have weakened in signal terminal (21).
2. A highly reliable fully shielded electrical connector as defined in claim 1, wherein: the plastic base (1) is provided with a large guide angle (13) at the butt joint and mutual matching side and is provided with 4 guide grooves (14, 15, 16 and 17), wherein the distances between the 2 guide grooves (14, 15) and (16 and 17) at the same side are unequal.
3. A highly reliable fully shielded electrical connector as defined in claim 2, wherein: the signal terminal (21) and the grounding terminal (22) are divided into a wiring area A and a butt joint area B, and fisheyes are formed in the end parts of the signal terminal (21) and the grounding terminal (22);
a first round hole (211) is formed in the signal terminal (21) close to the fisheye side;
a plurality of second round holes (221) and third round holes (222) are formed in the side, close to the fisheye, of the grounding terminal (22), and the second round holes (221) and the third round holes (222) are located in the wiring area A;
the grounding terminal (22) is provided with a plurality of special-shaped holes (223) in a wiring area A, one side of each special-shaped hole (223) is provided with a groove (2231), and the other side of each special-shaped hole (223) is provided with a protrusion (2232);
the top end of the butt joint area of the grounding terminal (22) is provided with a 90-degree bent tuning fork-shaped structure (225), and the tuning fork-shaped structure (225) is provided with a U-shaped groove (2251).
4. A highly reliable fully shielded electrical connector as defined in claim 3, wherein: a sinking structure (233) which is clamped with the shielding sheet (24) is arranged on the insulating plastic (23), and a guide post (235) which is connected with the shielding sheet (24) is arranged on the insulating plastic (23) to form double positioning of the shielding sheet (24);
a chamfer angle (2351) is formed at the top of the guide column (235), and a plurality of convex ribs (2352) are arranged on the side wall of the guide column (235);
the guide columns (235) are arranged in a plurality, at least 2 groups are symmetrically arranged;
the insulation plastic (23) is provided with a first clamping groove (231) at the position of the guide post (235), and the first clamping groove (231) is used for exposing the special-shaped hole (223) on the grounding terminal (22);
and the insulation plastic (23) is provided with a second clamping groove (232) exposing the butt joint surface of the grounding terminal (22) and a third clamping groove (237) exposing the tuning fork-shaped structure (225) on the grounding terminal (22) at the corresponding position of the butt joint area B.
5. A highly reliable fully shielded electrical connector as defined in claim 3, wherein: a plurality of bent convex elastic arms (243) are arranged at the end part of the shielding sheet (24), a plurality of technical square holes (245) are formed in the shielding sheet (24), at least two groups of technical square holes (245) are symmetrically arranged, and one end of each technical square hole (245) is provided with an anti-tuning fork structure bump (246);
the shielding sheet (24) and the insulating plastic (23) are connected in an interference fit manner through a process square hole (245) and a guide column (235);
the shielding sheet (24) is connected with the grounding terminal (22) in an interference fit mode through a bent convex elastic arm (243) and a special-shaped hole (223), the bent convex elastic arm (243) is inserted into the special-shaped hole (223) to be elastically deformed, and the edge of the protrusion (2232) and the edge of the groove (2231) on the other side form 3-point interference contact to form electric connection;
the anti-tuning fork structure bump (246) on the shielding sheet (24) is welded with a U-shaped groove (2251) formed in the tuning fork structure (225) in a laser mode;
the shielding sheet (24) is provided with an elastic arm (244) corresponding to the position of the second clamping groove (232), and the elastic arm is elastically compressed to form electric connection with the terminal butt joint surface;
and protruding special-shaped elastic arms (241) for limiting the insertion of the fixed signal module (2) into the mounting groove (11) are arranged on two sides of the shielding sheet (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023040165.1U CN216289322U (en) | 2020-12-17 | 2020-12-17 | High-reliability full-shielding electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023040165.1U CN216289322U (en) | 2020-12-17 | 2020-12-17 | High-reliability full-shielding electric connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216289322U true CN216289322U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023040165.1U Active CN216289322U (en) | 2020-12-17 | 2020-12-17 | High-reliability full-shielding electric connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216289322U (en) |
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2020
- 2020-12-17 CN CN202023040165.1U patent/CN216289322U/en active Active
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