CN211556206U - Punch forming contact element - Google Patents
Punch forming contact element Download PDFInfo
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- CN211556206U CN211556206U CN201922216322.0U CN201922216322U CN211556206U CN 211556206 U CN211556206 U CN 211556206U CN 201922216322 U CN201922216322 U CN 201922216322U CN 211556206 U CN211556206 U CN 211556206U
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Abstract
The punch-formed contact element comprises a contact element assembly, wherein the contact element assembly comprises a contact terminal, a plastic base and a riveting tin block, the contact terminal is arranged in the plastic base, and the contact terminal is composed of a plurality of rows of signal sill pieces; the signal pin ridge part comprises a riveting part, the riveting part comprises a clamping groove formed in the end part of the signal pin ridge part, a clamping block is arranged on the inner side wall of the clamping groove, and the distance between the openings of the clamping groove is smaller than the distance between the centers of the clamping grooves; and chamfering processing is adopted at the corners inside the clamping grooves, and the clamping grooves are clamped and connected with the riveting tin blocks. The contact terminal of the utility model utilizes the riveting mode to assemble a plurality of riveting tin blocks through the structural design of the narrower region, the wider region and the chamfer structure of the tail end clamping groove, thereby realizing the reliable fixation and connection between the contact terminal and the riveting tin blocks; the riveting tin ingot is matched with the clamping groove structure of the contact terminal, and the limiting effect in multiple directions is realized by utilizing the compression expansion principle.
Description
Technical Field
The utility model belongs to the technical field of the connector accessory, in particular to stamping forming's contact.
Background
With the rapid development of science and technology in China, the data transmission speed of a system is continuously improved, the requirement on the transmission rate of a connector is higher and higher, the form of a contact is changed, particularly, the connection mode between the contact and a printed board is changed from the original through hole welding to fisheye crimping and BGA connection, from the transmission rate, the fisheye crimping and BGA connection mode can generate smaller impedance discontinuity, and the transmission rate of the connector is improved, so that the two modes are selected by more and more connector designers, and particularly, the BGA connector mode is adopted in high-density connector design.
The BGA mode that needs at present mainly has hot planting ball and cold planting ball, and hot planting ball often the shaping efficiency is lower relatively wherein, and the uniformity is not good, and the common form of cold planting ball is crimping tin bar on the pin of contact, has promoted shaping efficiency and uniformity, but often tin bar holding power is not enough, before the welding, the in-process of use or transportation appears the tin bar and drops the condition of losing, leads to the welding failure at last.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to prior art exists provides a stamping forming's contact, and concrete technical scheme is as follows:
a punch forming contact element comprises a contact element assembly, wherein the contact element assembly comprises a contact terminal, a plastic base and a riveting tin block, the contact terminal is arranged in the plastic base, and the contact terminal is composed of a plurality of rows of signal sill pieces; the signal pin ridge part comprises a riveting part, the riveting part comprises a clamping groove formed in the end part of the signal pin ridge part, a clamping block is arranged on the inner side wall of the clamping groove, and the distance between the openings of the clamping groove is smaller than the distance between the centers of the clamping grooves;
and chamfering processing is adopted at the corners inside the clamping grooves, and the clamping grooves are clamped and connected with the riveting tin blocks.
Further, the riveting tin block comprises a second groove and a block body, the block body is of a chamfered cuboid structure, and the side part of the block body is provided with the second groove; the second groove is connected with the riveting piece in a matching mode.
Furthermore, the signal sill member further comprises a contact member, a first connecting plate, a second connecting plate and a connecting plate, the first connecting plate and the second connecting plate are integrally formed into a 7-shaped structure, and the end part of the first connecting plate is provided with the contact member; a connecting plate is arranged on the side part of the first connecting plate; the riveting and pressing piece is arranged at the end part of the second connecting plate.
Further, the contact piece comprises a first groove, a cantilever beam and a turnover plate, wherein the cantilever beam is formed by extending the first connecting plate; the center of the cantilever beam is divided into two symmetrical parts through a first groove; the cantilever beam is turned upwards by 90 degrees to form two turning plates.
Further, the plastic base comprises a step groove, a cylindrical cavity, a step column, a square step and a base shell; the surface of the base shell is provided with a step groove and a cylindrical cavity; one side of the base shell is provided with a square step, and the side of the base shell is provided with a step column.
Further, the signal needle bank piece is equipped with four rows or eight rows that differ in length, both ends are aligned, and the signal needle bank piece passes through the whole punching press of mould, bending stamping forming.
The utility model has the advantages that:
the contact terminal of the utility model is bent by 90 degrees, so that the turnover plate is formed for butt joint with the contact pin, and a plurality of riveting tin blocks are assembled by using a riveting mode through the structural design of a narrower region, a wider region and a chamfer structure of the tail end clamping groove, so that the reliable fixation and connection between the contact terminal and the riveting tin blocks are realized; the riveting tin bar is designed into an H shape, and is matched with a clamping groove structure of a contact terminal, and the limiting effect in multiple directions is realized by utilizing the compression expansion principle.
Drawings
Fig. 1 is a schematic diagram of a contact assembly having four rows of signal pins according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a contact assembly having eight rows of signal latches according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating a signal sill member formed by integral punch forming according to an embodiment of the present invention;
fig. 4 shows a schematic view of a bend punch formed contact terminal according to an embodiment of the invention;
fig. 5 is a schematic structural diagram of a plastic base in a four-row signal pin threshold member in an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a plastic base in an eight-row signal pin threshold member in an embodiment of the present invention;
fig. 7 is a schematic structural view illustrating the assembled contact terminals of the four rows of signal pins and the plastic base according to the embodiment of the present invention;
fig. 8 is a schematic structural view illustrating the assembled contact terminals of the eight rows of signal thresholds and the plastic base according to the embodiment of the present invention;
fig. 9 shows a schematic diagram of a rivet-pressing tin block and a press-fit in an embodiment of the present invention;
fig. 10 shows a schematic structural diagram of a rivet pressing tin block according to an embodiment of the present invention.
Shown in the figure: 1. the contact element assembly comprises a contact element assembly body, 2, a contact terminal, 20, a signal pin threshold element, 200, a contact element, 2000, a first groove, 2001, a cantilever beam, 2002, a turnover plate, 201, a first connecting plate, 202, a riveting element, 2020, a clamping groove, 2021, a clamping block, 203, a second connecting plate, 204, a connecting plate, 3, a plastic base, 31, a step groove, 32, a cylindrical cavity, 33, a step column, 34, a square step, 35, a base shell, 4, a riveting tin block, 41, a second groove, 42 and a block body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A punch forming contact element comprises a contact element assembly 1, wherein the contact element assembly 1 comprises a contact terminal 2, a plastic base 3 and a riveting tin block 4, the contact terminal 2 is installed inside the plastic base 3, and the contact terminal 2 is composed of a plurality of rows of signal pin ridge parts 20; the signal pin bank piece 20 comprises a riveting piece 202, the riveting piece 202 comprises a clamping groove 2020 formed in the end portion of the signal pin bank piece 20, a clamping block 2021 is arranged on the inner side wall of the clamping groove 2020, and the distance between the openings of the clamping grooves 2020 is smaller than the distance between the centers of the clamping grooves 2020; the corners inside the clamping groove 2020 are chamfered, and the riveting tin block 4 is clamped and connected inside the clamping groove 2020, so that the contact terminal 2 and the riveting tin block 4 can be reliably fixed and connected.
As an improvement of the above technical solution, the rivet pressing tin block 4 includes a second groove 41 and a block 42, the block 42 is a rectangular parallelepiped structure with a chamfer, and the side of the block 42 is provided with the second groove 41; the second groove 41 is connected with the riveting part 202 in a matching manner, so that multi-directional limiting is realized, and the connection firmness of the two parts is improved.
As an improvement of the above technical solution, the signal sill member 20 further includes a contact member 200, a first connecting plate 201, a second connecting plate 203 and a connecting plate 204, the first connecting plate 201 and the second connecting plate 203 form a "7" shaped structure integrally, and the end of the first connecting plate 201 is provided with the contact member 200; a connecting plate 204 is arranged on the side of the first connecting plate 201; the riveting part 202 is arranged at the end of the second connecting plate 203.
As a modification of the above technical solution, the contact 200 includes a first groove 2000, a cantilever 2001, and a flip plate 2002, wherein the cantilever 2001 is formed by extending the first connection plate 201; the center of the cantilever 2001 is divided into two symmetrical parts by a first groove 2000; the cantilever 2001 is flipped up 90 ° to form two flipping panels 2002.
As an improvement of the above technical solution, the plastic base 3 includes a step groove 31, a cylindrical cavity 32, a step column 33, a square step 34 and a base housing 35; the surface of the base shell 35 is provided with a step groove 31 and a cylindrical cavity 32; a square step 34 is provided at one side of the base housing 35, and a step pillar 33 is provided at a side portion of the base housing 35.
As an improvement of the above technical solution, the signal pin ridge member 20 is provided with four rows or eight rows with different lengths and aligned two ends, and the signal pin ridge member 20 is integrally punched and bent by a die.
Fig. 1 is a schematic diagram of a contact assembly having four rows of signal pins according to an embodiment of the present invention; exemplarily, as shown in fig. 1, the contact assembly 1 includes a contact terminal 2, a plastic base 3, and four riveting tin blocks 4, the contact terminal 2 includes four rows of signal thresholds 20, the four rows of signal thresholds 20 are all formed by punching, and then injection molding and riveting of the riveting tin blocks 4 are performed, so as to form a contact assembly having four rows of signal thresholds 4.
Fig. 2 is a schematic diagram of a contact assembly having eight rows of signal latches according to an embodiment of the present invention; exemplarily, as shown in fig. 2, the contact assembly 1 includes a contact terminal 2, a plastic base 3, and four riveting tin blocks 4, the contact terminal 2 includes eight rows of signal thresholds 20, the eight rows of signal thresholds 20 are all formed by punching, and then injection molding and riveting of the riveting tin blocks 4 are performed, so as to form a contact assembly having eight rows of signal thresholds 4.
Fig. 3 is a schematic diagram illustrating the signal threshold member 20 according to the embodiment of the present invention after being integrally formed by stamping, and four rows of signal threshold members 20 are taken as an example for illustration, and eight rows of signal threshold members 20 are similar to the structure and principle; after the contact terminal 2 is punched for one time, a contact element 200 positioned in a left side area, a first connecting plate 201 connected with a transition area in the middle and a second connecting plate 203 integrally formed with the first connecting plate 201 are formed, and a riveting part 202 is arranged at the tail end of the second connecting plate 203; the intermediate connection transition region is designed with a connecting web 204 for securing the connection of all contact elements 200.
Fig. 4 shows a schematic view of a bend punch formed contact terminal according to an embodiment of the invention; the four rows of signal latches 20 are taken as an example for explanation, and the eight rows of signal latches 20 are similar to the structure and principle. The contact element 200 of the left-end contact area is formed by processes of stamping, overturning and the like, and comprises two cantilever beams 2001 extending from the right end to the left end, the front ends of the cantilever beams 2001 are upwards overturned by 90 degrees through stamping to form two overturning plates 2002, the front ends are overturned towards two sides to form guide parts, a gap formed in the middle of the overturning plates 2002 is a first groove 2000 and used for butting with a butting-end contact pin, and the two overturning plates 2002 are in elastic contact. The first connecting plates 201 in the middle transition region of the contact terminal 2 are punched to form 90-degree turnover towards one side, all the connecting plates 204 form wide-side parallel arrangement after turnover, and the second connecting plates 203 in the non-bent region form multiple rows of narrow-side parallel arrangement. The tail end region of the second connecting plate 203 is punched to form a clamping groove 2020 with a structure which is small in opening and large in the middle, the opening part of the clamping groove 2020 is a narrow region and a large region in the middle, the clamping groove 2020 is mainly used for maintaining after the tin block is pressed and pressed, the two sides of the structure of the clamping groove 2020 are both punched to form a chamfer structure, and a clamping block 2021 is arranged at the center of the inner wall, so that after the tin block is punched and deformed, the contact area between the tin block and the riveting part 202 is increased, and the holding power is increased.
Fig. 5 shows a schematic structural diagram of a plastic base in a four-row signal sill member in an embodiment of the present invention, as shown in fig. 5, a plurality of cylindrical cavities 32 and step grooves 31 are provided on the plastic base 3, wherein the cylindrical cavities 32 are used for removing the connecting plates 204 of the contact terminals 2, and the step grooves 31 are used for implementing impedance matching and process injection molding; the rear side of the plastic base 3 extends out of the square step 34 for the position limiting function in the assembling process of the contact terminal 2; four step posts 33 extend from the base housing 35 of the plastic base 3 for impedance matching of the pins of the contact terminals 2 while preventing solder from climbing upward during soldering.
Fig. 6 shows a schematic structural diagram of a plastic base in an eight-row signal sill member in an embodiment of the present invention, as shown in fig. 6, a plurality of cylindrical cavities 32 and step grooves 31 are provided on the plastic base 3, wherein the cylindrical cavities 32 are used for removing the connecting plates 204 of the contact terminals 2, and the step grooves 31 are used for implementing impedance matching and process injection molding; the rear side of the plastic base 3 extends out of the square step 34 for the position limiting function in the assembling process of the contact terminal 2; eight step posts 33 extend from the base housing 35 of the plastic base 3 for impedance matching of the pins of the contact terminals 2 and preventing solder from climbing upward during soldering.
Fig. 7 shows a schematic structural diagram of the assembled contact terminals of the four rows of signal thresholds and the plastic base according to the embodiment of the present invention, exemplarily, as shown in fig. 7, wherein the contact terminal 2 is composed of four signal thresholds 20, and the contact element 200 of the signal thresholds 20 extends in parallel from the left end of the plastic base 3 to form a plurality of parallel cantilever beams 2001 for product docking; the tail end of the signal sill member 20 extends out of the bottom end of the plastic base 3 in parallel and is parallel to and attached to the step column 33; the web 204 of the signal finger ridge 20 is cut at the cylindrical cavity 32 by a punch tool. Fig. 8 shows a schematic structural diagram of the assembled contact terminal of the eight rows of signal pin threshold members and the plastic base according to the embodiment of the present invention, and the structural principle is the same as that of the four rows of signal pin threshold members 20.
Fig. 9 shows a schematic diagram of a rivet pressing solder bump and a press-fit in an embodiment of the present invention, fig. 10 shows a schematic structural diagram of the rivet pressing solder bump in the embodiment of the present invention, and as shown in fig. 9 and 10 for illustration, a four-row signal threshold member 20 is taken as an example for illustration; the riveting tin block 4 is formed by punching a die, the section of the riveting tin block is an H-shaped tin block, a narrow second groove 41 is designed in the middle of the H-shaped tin block and just installed in a wide area of a clamping groove 2020 of the riveting part 202, and then the tin block body 42 is extruded by a side flat die, so that the H-shaped riveting tin block 4 is transversely narrowed, but a clamping block 2021 is arranged at a part in the wide area of the clamping groove 2020, so that the riveting tin block can be clamped by the narrow area of the clamping groove 2020, and the fixing of the riveting tin block 4 is formed. Ensuring that the tin block has larger holding force in the horizontal and vertical directions.
The contact terminal of the utility model is bent by 90 degrees, so that the turnover plate is formed for butt joint with the contact pin, and a plurality of riveting tin blocks are assembled by using a riveting mode through the structural design of a narrower region, a wider region and a chamfer structure of the tail end clamping groove, so that the reliable fixation and connection between the contact terminal and the riveting tin blocks are realized; the riveting tin bar is designed into an H shape, and is matched with a clamping groove structure of a contact terminal, and the limiting effect in multiple directions is realized by utilizing the compression expansion principle.
The utility model provides a high-speed connector contact, it has adopted BGA welding form with printed board connector mode, ensures that the product has higher transmission rate, and this kind of contact has adopted the mode of cold ball planting, through stamping forming between contact and the tin solder, mainly solves the problem of holding ball efficiency, uniformity and tin solder fixity.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. Stamping forming's contact, including contact piece closes piece (1), contact piece closes piece (1) including contact terminal (2), plastic substrate (3) and riveting tin (4), its characterized in that:
the contact terminal (2) is arranged in the plastic base (3), and the contact terminal (2) is composed of a plurality of rows of signal pin ridge pieces (20); the signal needle bank piece (20) comprises a riveting piece (202), the riveting piece (202) comprises a clamping groove (2020) formed in the end part of the signal needle bank piece (20), a clamping block (2021) is arranged on the inner side wall of the clamping groove (2020), and the distance of the opening of the clamping groove (2020) is smaller than the distance of the center of the clamping groove (2020);
the corners in the clamping groove (2020) are subjected to chamfering treatment, and the riveting tin block (4) is clamped and connected in the clamping groove (2020).
2. The stamped contact according to claim 1, wherein: the riveting tin block (4) comprises a second groove (41) and a block body (42), the block body (42) is of a chamfered cuboid structure, and the side part of the block body (42) is provided with the second groove (41); the second groove (41) is matched and connected with the riveting piece (202).
3. The stamped contact according to claim 1, wherein: the signal pin ridge piece (20) further comprises a contact piece (200), a first connecting plate (201), a second connecting plate (203) and a connecting plate (204), the first connecting plate (201) and the second connecting plate (203) are integrally formed into a (7)' shaped structure, and the end part of the first connecting plate (201) is provided with the contact piece (200); a connecting plate (204) is arranged on the side of the first connecting plate (201); the riveting pressing piece (202) is arranged at the end part of the second connecting plate (203).
4. The stamped contact according to claim 3, wherein: the contact (200) comprises a first groove (2000), a cantilever beam (2001) and a turnover plate (2002), wherein the cantilever beam (2001) is formed by extending the first connecting plate (201); the center of the cantilever beam (2001) is divided into two symmetrical parts through a first groove (2000); the cantilever beam (2001) is turned upwards by 90 degrees to form two turning plates (2002).
5. The stamped contact according to claim 4, wherein: the plastic base (3) comprises a step groove (31), a cylindrical cavity (32), a step column (33), a square step (34) and a base shell (35); the surface of the base shell (35) is provided with a step groove (31) and a cylindrical cavity (32); one side of the base shell (35) is provided with a square step (34), and the side of the base shell (35) is provided with a step column (33).
6. The stamped contact according to any of claims 1 to 4, wherein: the signal pin ridge piece (20) is provided with four rows or eight rows with different lengths and aligned two ends, and the signal pin ridge piece (20) is integrally punched and bent through a die to be punched and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922216322.0U CN211556206U (en) | 2019-12-12 | 2019-12-12 | Punch forming contact element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922216322.0U CN211556206U (en) | 2019-12-12 | 2019-12-12 | Punch forming contact element |
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| Publication Number | Publication Date |
|---|---|
| CN211556206U true CN211556206U (en) | 2020-09-22 |
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|---|---|---|---|
| CN201922216322.0U Active CN211556206U (en) | 2019-12-12 | 2019-12-12 | Punch forming contact element |
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| CN (1) | CN211556206U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708170A (en) * | 2021-07-05 | 2021-11-26 | 上海航天科工电器研究院有限公司 | High-speed primary-secondary board connector |
| CN114142269A (en) * | 2021-11-22 | 2022-03-04 | 深圳市创联精密五金有限公司 | High-speed connector conductor pin structure and tin implanting process thereof |
| CN114142275A (en) * | 2021-11-22 | 2022-03-04 | 深圳市创联精密五金有限公司 | First connector and second connector |
-
2019
- 2019-12-12 CN CN201922216322.0U patent/CN211556206U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708170A (en) * | 2021-07-05 | 2021-11-26 | 上海航天科工电器研究院有限公司 | High-speed primary-secondary board connector |
| CN114142269A (en) * | 2021-11-22 | 2022-03-04 | 深圳市创联精密五金有限公司 | High-speed connector conductor pin structure and tin implanting process thereof |
| CN114142275A (en) * | 2021-11-22 | 2022-03-04 | 深圳市创联精密五金有限公司 | First connector and second connector |
| CN114142269B (en) * | 2021-11-22 | 2023-12-22 | 深圳创联精密技术有限公司 | High-speed connector conductor pin structure and tin planting technology thereof |
| CN114142275B (en) * | 2021-11-22 | 2023-12-22 | 深圳市创联精密五金有限公司 | first connector and second connector |
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